WorldWideScience

Sample records for public domain sources

  1. Use of media and public-domain Internet sources for detection and assessment of plant health threats

    Directory of Open Access Journals (Sweden)

    David M. Hartley

    2011-09-01

    Full Text Available Event-based biosurveillance is a recognized approach to early warning and situational awareness of emerging health threats. In this study, we build upon previous human and animal health work to develop a new approach to plant pest and pathogen surveillance. We show that monitoring public domain electronic media for indications and warning of epidemics and associated social disruption can provide information about the emergence and progression of plant pest infestation or disease outbreak. The approach is illustrated using a case study, which describes a plant pest and pathogen epidemic in China and Vietnam from February 2006 to December 2007, and the role of ducks in contributing to zoonotic virus spread in birds and humans. This approach could be used as a complementary method to traditional plant pest and pathogen surveillance to aid global and national plant protection officials and political leaders in early detection and timely response to significant biological threats to plant health, economic vitality, and social stability. This study documents the inter-relatedness of health in human, animal, and plant populations and emphasizes the importance of plant health surveillance.

  2. PUBLIC DOMAIN PROTECTION. USES AND REUSES OF PUBLIC DOMAIN WORKS

    OpenAIRE

    Monica Adriana LUPAȘCU

    2015-01-01

    This study tries to highlight the necessity of an awareness of the right of access to the public domain, particularly using the example of works whose protection period has expired, as well as the ones which the law considers to be excluded from protection. Such works are used not only by large libraries from around the world, but also by rights holders, via different means of use, including incorporations into original works or adaptations. However, the reuse that follows these uses often on...

  3. Public Water Sources

    Data.gov (United States)

    Vermont Center for Geographic Information — This GIS layer consists of the geographic location of active and inactive public (Community, non-transient non-community and transient non-community) water sources...

  4. Transform domain steganography with blind source separation

    Science.gov (United States)

    Jouny, Ismail

    2015-05-01

    This paper applies blind source separation or independent component analysis for images that may contain mixtures of text, audio, or other images for steganography purposes. The paper focuses on separating mixtures in the transform domain such as Fourier domain or the Wavelet domain. The study addresses the effectiveness of steganography when using linear mixtures of multimedia components and the ability of standard blind sources separation techniques to discern hidden multimedia messages. Mixing in the space, frequency, and wavelet (scale) domains is compared. Effectiveness is measured using mean square error rate between original and recovered images.

  5. Full traveltime inversion in source domain

    KAUST Repository

    Liu, Lu

    2017-06-01

    This paper presents a new method of source-domain full traveltime inversion (FTI). The objective of this study is automatically building near-surface velocity using the early arrivals of seismic data. This method can generate the inverted velocity that can kinetically best match the reconstructed plane-wave source of early arrivals with true source in source domain. It does not require picking first arrivals for tomography, which is one of the most challenging aspects of ray-based tomographic inversion. Besides, this method does not need estimate the source wavelet, which is a necessity for receiver-domain wave-equation velocity inversion. Furthermore, we applied our method on one synthetic dataset; the results show our method could generate a reasonable background velocity even when shingling first arrivals exist and could provide a good initial velocity for the conventional full waveform inversion (FWI).

  6. Cultural Heritage and the Public Domain

    Directory of Open Access Journals (Sweden)

    Bas Savenije

    2012-09-01

    by providing their resources on the Internet” (Berlin Declaration 2003. Therefore, in the spirit of the Berlin Declaration, the ARL encourages its members’ libraries to grant all non-commercial users “a free, irrevocable, worldwide, right of access to, and a license to copy, use, distribute, transmit and display the work publicly and to make and distribute derivative works, in any digital medium for any responsible purpose, subject to proper attribution of authorship”. And: “If fees are to be assessed for the use of digitised public domain works, those fees should only apply to commercial uses” (ARL Principles July 2010. In our view, cultural heritage institutions should make public domain material digitised with public funding as widely available as possible for access and reuse. The public sector has the primary responsibility to fund digitisation. The involvement of private partners, however, is encouraged by ARL as well as the Comité des Sages. Private funding for digitisation is a complement to the necessary public investment, especially in times of economic crisis, but should not be seen as a substitute for public funding. As we can see from these reports there are a number of arguments in favour of digitisation and also of providing maximum accessibility to the digitised cultural heritage. In this paper we will investigate the legal aspects of digitisation of cultural heritage, especially public domain material. On the basis of these we will make an inventory of policy considerations regarding reuse. Furthermore, we will describe the conclusions the National Library of the Netherlands (hereafter: KB has formulated and the arguments that support these. In this context we will review public-private partnerships and also the policy of the KB. We will conclude with recommendations for cultural heritage institutions concerning a reuse policy for digitised public domain material.

  7. Preserving the positive functions of the public domain in science

    Directory of Open Access Journals (Sweden)

    Pamela Samuelson

    2003-11-01

    Full Text Available Science has advanced in part because data and scientific methodologies have traditionally not been subject to intellectual property protection. In recent years, intellectual property has played a greater role in scientific work. While intellectual property rights may have a positive role to play in some fields of science, so does the public domain. This paper will discuss some of the positive functions of the public domain and ways in which certain legal developments may negatively impact the public domain. It suggests some steps that scientists can take to preserve the positive functions of the public domain for science.

  8. The Definition, Dimensions, and Domain of Public Relations.

    Science.gov (United States)

    Hutton, James G.

    1999-01-01

    Discusses how the field of public relations has left itself vulnerable to other fields that are making inroads into public relations' traditional domain, and to critics who are filling in their own definitions of public relations. Proposes a definition and a three-dimensional framework to compare competing philosophies of public relations and to…

  9. Willingness to Cooperate Within the Open Source Software Domain

    NARCIS (Netherlands)

    Ravesteijn, J.P.P.; Silvius, A.J.G.

    2008-01-01

    Open Source Software (OSS) is an increasingly hot topic in the business domain. One of the key benefits mentioned is the unlimited access to the source code, which enables large communities to continuously improve a software application and prevents vendor lock-in. How attractive these benefits may

  10. Development and Initial Validation of Public Domain Basic Interest Markers

    Science.gov (United States)

    Liao, Hsin-Ya; Armstrong, Patrick Ian; Rounds, James

    2008-01-01

    Goldberg (Goldberg, L. R. (1999). "A broad-bandwidth, public-domain, personality inventory measuring the lower-level facets of several five-factor models." In: I. Mervielde, I. Deary, F. De Fruyt, & F. Ostendorf (Eds.), "Personality psychology in Europe" (Vol. 7, pp. 7-28). Tilburg, The Netherlands: Tilburg University Press) has argued that the…

  11. Open Source in Canada's Public Sector

    Directory of Open Access Journals (Sweden)

    Evan Leibovitch

    2008-03-01

    Full Text Available The story of the growth of open source use in Canada has been far more a matter of evolution than revolution, so quiet in its pace that its progress has been difficult to measure. This has posed many challenges to Canadian open source advocates in their efforts to ensure that their country does not lag behind the rest of the world in understanding the social and business benefits open source provides. Perhaps some of the leading soldiers in the trenches might be our civil servants who protect the public purse. In addition to managing and minimizing the costs of delivering necessary services, public sector projects should also advance the social good through the delicate balance of transparency and efficiency.

  12. Antibody discovery: sourcing of monoclonal antibody variable domains.

    Science.gov (United States)

    Strohl, William R

    2014-03-01

    Historically, antibody variable domains for therapeutic antibodies have been sourced primarily from the mouse IgG repertoire, and typically either chimerized or humanized. More recently, human antibodies from transgenic mice producing human IgG, phage display libraries, and directly from human B lymphocytes have been used more broadly as sources of antibody variable domains for therapeutic antibodies. Of the total 36 antibodies approved by major maket regulatory agencies, the variable domain sequences of 26 originate from the mouse. Of these, four are marketed as murine antibodies (of which one is a mouse-rat hybrid IgG antibody), six are mouse-human chimeric antibodies, and 16 are humanized. Ten marketed antibodies have originated from human antibody genes, three isolated from phage libraries of human antibody genes and seven from transgenic mice producing human antibodies. Five antibodies currently in clinical trials have been sourced from camelids, as well as two from non-human primates, one from rat, and one from rabbit. Additional sources of antibody variable domains that may soon find their way into the clinic are potential antibodies from sharks and chickens. Finally, the various methods for retrieval of antibodies from humans, mouse and other sources, including various display technologies and amplification directly from B cells, are described.

  13. Sources of noise in Brillouin optical time-domain analyzers

    OpenAIRE

    Urricelqui Polvorinos, Javier; Soto, Marcelo A.; Thévenaz, Luc

    2015-01-01

    This paper presents a thorough study of the different sources of noise affecting Brillouin optical time-domain analyzers (BOTDA), providing a deep insight into the understanding of the fundamental limitations of this kind of sensors. Analytical and experimental results indicate that the noise source ultimately fixing the sensor performance depends basically on the fiber length and the input pump-probe powers. Thus, while the phase-to-intensity noise conversion induced by stimulated Brillouin ...

  14. Copyright and the Value of the Public Domain

    OpenAIRE

    Erickson, Kristofer; Heald, Paul; Homberg, Fabian; Kretschmer, Martin; Mendis, Dinusha

    2015-01-01

    This research report documents the results of a year-long knowledge exchange initiative undertaken between the Intellectual Property Office, researchers at the University of Glasgow CREATe Centre, and more than two dozen UK businesses and innovators, to explore how value is generated from the public domain. The study was supported by the Economic and Social Research Council (ESRC) and the Intellectual Property Office (IPO). The core research team consisted of Dr. Kristofer Erickson (Lord Kelv...

  15. How Source Affects Response to Public Service Advertising.

    Science.gov (United States)

    Lynn, Jerry R.; And Others

    1978-01-01

    Reports that public service advertising attributed to the Advertising Council elicited higher message ratings than did public service advertising attributed to a commercial source, a noncommercial source, or no source; however, it produced the lowest behavioral responses. (GT)

  16. Agents unleashed a public domain look at agent technology

    CERN Document Server

    Wayner, Peter

    1995-01-01

    Agents Unleashed: A Public Domain Look at Agent Technology covers details of building a secure agent realm. The book discusses the technology for creating seamlessly integrated networks that allow programs to move from machine to machine without leaving a trail of havoc; as well as the technical details of how an agent will move through the network, prove its identity, and execute its code without endangering the host. The text also describes the organization of the host's work processing an agent; error messages, bad agent expulsion, and errors in XLISP-agents; and the simulators of errors, f

  17. Fission and Surface Source Iteration Scheme with Source Splitting in Domain Decomposition Monte Carlo Calculation

    Energy Technology Data Exchange (ETDEWEB)

    Jo, Yu Gwon; Cho, Nam Zin [KAIST, Daejeon (Korea, Republic of)

    2014-10-15

    The OLG iteration scheme uses overlapping regions for each local problem solved by continuous-energy MC calculation to reduce errors in inaccurate boundary conditions (BCs) that are caused by discretization in space, energy, and angle. However, the overlapping region increases computational burdens and the discretized BCs for continuous-energy MC calculation result in an inaccurate global p-CMFD solution. On the other hand, there also have been several studies on the direct domain decomposed MC calculation where each processor simulates particles within its own domain and exchanges the particles crossing the domain boundary between processors with certain frequency. The efficiency of this method depends on the message checking frequency and the buffer size. Furthermore, it should overcome the load-imbalance problem for better parallel efficiency. Recently, fission and surface source (FSS) iteration method based on banking both fission and surface sources for the next iteration (i.e., cycle) was proposed to give exact BCs for non overlapping local problems in domain decomposition and tested in one-dimensional continuous-energy reactor problems. In this paper, the FSS iteration method is combined with a source splitting scheme to reduce the load imbalance problem and achieve global variance reduction. The performances are tested on a two dimensional continuous-energy reactor problem with domain-based parallelism and compared with the FSS iteration without source splitting. Numerical results show the improvements of the FSS iteration with source splitting. This paper describes the FSS iteration scheme in the domain decomposition method and proposes the FSS iteration combined with the source splitting based on the number of sampled sources, reducing the load-imbalance problem in domain-based parallelism and achieving global variance reduction.

  18. Towards development of a high quality public domain global roads database

    Directory of Open Access Journals (Sweden)

    Andrew Nelson

    2006-12-01

    Full Text Available There is clear demand for a global spatial public domain roads data set with improved geographic and temporal coverage, consistent coding of road types, and clear documentation of sources. The currently best available global public domain product covers only one-quarter to one-third of the existing road networks, and this varies considerably by region. Applications for such a data set span multiple sectors and would be particularly valuable for the international economic development, disaster relief, and biodiversity conservation communities, not to mention national and regional agencies and organizations around the world. The building blocks for such a global product are available for many countries and regions, yet thus far there has been neither strategy nor leadership for developing it. This paper evaluates the best available public domain and commercial data sets, assesses the gaps in global coverage, and proposes a number of strategies for filling them. It also identifies stakeholder organizations with an interest in such a data set that might either provide leadership or funding for its development. It closes with a proposed set of actions to begin the process.

  19. Public-domain software for root image analysis

    Directory of Open Access Journals (Sweden)

    Mirian Cristina Gomes Costa

    2014-10-01

    Full Text Available In the search for high efficiency in root studies, computational systems have been developed to analyze digital images. ImageJ and Safira are public-domain systems that may be used for image analysis of washed roots. However, differences in root properties measured using ImageJ and Safira are supposed. This study compared values of root length and surface area obtained with public-domain systems with values obtained by a reference method. Root samples were collected in a banana plantation in an area of a shallower Typic Carbonatic Haplic Cambisol (CXk, and an area of a deeper Typic Haplic Ta Eutrophic Cambisol (CXve, at six depths in five replications. Root images were digitized and the systems ImageJ and Safira used to determine root length and surface area. The line-intersect method modified by Tennant was used as reference; values of root length and surface area measured with the different systems were analyzed by Pearson's correlation coefficient and compared by the confidence interval and t-test. Both systems ImageJ and Safira had positive correlation coefficients with the reference method for root length and surface area data in CXk and CXve. The correlation coefficient ranged from 0.54 to 0.80, with lowest value observed for ImageJ in the measurement of surface area of roots sampled in CXve. The IC (95 % revealed that root length measurements with Safira did not differ from that with the reference method in CXk (-77.3 to 244.0 mm. Regarding surface area measurements, Safira did not differ from the reference method for samples collected in CXk (-530.6 to 565.8 mm² as well as in CXve (-4231 to 612.1 mm². However, measurements with ImageJ were different from those obtained by the reference method, underestimating length and surface area in samples collected in CXk and CXve. Both ImageJ and Safira allow an identification of increases or decreases in root length and surface area. However, Safira results for root length and surface area are

  20. Statistical Sources of Information on Canadian Public Libraries.

    Science.gov (United States)

    Kokich, George J. V.

    1981-01-01

    Discusses difficulties involved in locating sources of statistical information on public libraries in Canada and describes a study conducted to identify and evaluate various sources of such information. An 18-item bibliography is provided. (CHC)

  1. Sources of Michigan Public Library Income.

    Science.gov (United States)

    Michigan Library, Lansing.

    This document tabulates the results of a 1994 survey of public library funding in Michigan. The survey discovered that 68.8% of public library funds are provided by local tax support, 13.7% by penal fines awarded to libraries by court systems which have received income for violations of state laws, 7.6% by state aid, and 9.9% by other means, such…

  2. Molecular scaffold analysis of natural products databases in the public domain.

    Science.gov (United States)

    Yongye, Austin B; Waddell, Jacob; Medina-Franco, José L

    2012-11-01

    Natural products represent important sources of bioactive compounds in drug discovery efforts. In this work, we compiled five natural products databases available in the public domain and performed a comprehensive chemoinformatic analysis focused on the content and diversity of the scaffolds with an overview of the diversity based on molecular fingerprints. The natural products databases were compared with each other and with a set of molecules obtained from in-house combinatorial libraries, and with a general screening commercial library. It was found that publicly available natural products databases have different scaffold diversity. In contrast to the common concept that larger libraries have the largest scaffold diversity, the largest natural products collection analyzed in this work was not the most diverse. The general screening library showed, overall, the highest scaffold diversity. However, considering the most frequent scaffolds, the general reference library was the least diverse. In general, natural products databases in the public domain showed low molecule overlap. In addition to benzene and acyclic compounds, flavones, coumarins, and flavanones were identified as the most frequent molecular scaffolds across the different natural products collections. The results of this work have direct implications in the computational and experimental screening of natural product databases for drug discovery.

  3. Assessment of current cybersecurity practices in the public domain : cyber indications and warnings domain.

    Energy Technology Data Exchange (ETDEWEB)

    Hamlet, Jason R.; Keliiaa, Curtis M.

    2010-09-01

    This report assesses current public domain cyber security practices with respect to cyber indications and warnings. It describes cybersecurity industry and government activities, including cybersecurity tools, methods, practices, and international and government-wide initiatives known to be impacting current practice. Of particular note are the U.S. Government's Trusted Internet Connection (TIC) and 'Einstein' programs, which are serving to consolidate the Government's internet access points and to provide some capability to monitor and mitigate cyber attacks. Next, this report catalogs activities undertaken by various industry and government entities. In addition, it assesses the benchmarks of HPC capability and other HPC attributes that may lend themselves to assist in the solution of this problem. This report draws few conclusions, as it is intended to assess current practice in preparation for future work, however, no explicit references to HPC usage for the purpose of analyzing cyber infrastructure in near-real-time were found in the current practice. This report and a related SAND2010-4766 National Cyber Defense High Performance Computing and Analysis: Concepts, Planning and Roadmap report are intended to provoke discussion throughout a broad audience about developing a cohesive HPC centric solution to wide-area cybersecurity problems.

  4. An outlook on the nature of mental creations after belonging to public domain

    Directory of Open Access Journals (Sweden)

    Pedjman Mohammadi

    2015-05-01

    Full Text Available The public domain of copyright which considers the end of protection period, attempts to cause balance among the rights of authors, society and third parties. So at the end of financial rights of author’s protection period the possibility of free utilization of these literary works will be possible. But in this situation one of the controversial difficulties is the nature of these kinds of literary works which, according to some scholars, after belonging to public domain, they will change in to the Allowable. To approve their idea, they focus on common features existing in these literary works(works relating to public domain and the Allowable. On the other hand it is believed that literary works after belonging to public domain essentially works after belonging to public domain essentially due to lacking of scarcity element are not considered property at all.

  5. Active and retired public employees' health insurance: potential data sources.

    Science.gov (United States)

    Morrill, Melinda Sandler

    2014-12-01

    Employer-provided health insurance for public sector workers is a significant public policy issue. Underfunding and the growing costs of benefits may hinder the fiscal solvency of state and local governments. Findings from the private sector may not be applicable because many public sector workers are covered by union contracts or salary schedules and often benefit modifications require changes in legislation. Research has been limited by the difficulty in obtaining sufficiently large and representative data on public sector employees. This article highlights data sources researchers might utilize to investigate topics concerning health insurance for active and retired public sector employees.

  6. The Creative Commons. A Third Way between Public Domain and Community ?

    Directory of Open Access Journals (Sweden)

    Clément Bert-Erboul

    2016-04-01

    Full Text Available How have the Creative Commons’ ownership rules used by free websites like Wikipedia or Flickr and in 3D printer projects or in alternative kitchen gardens, been develo­ped? Internet users and technological experimentation communities rely heavily on these free tools, but the ideologies of the public domain and online communities that allowed their birth often remain obscure. In this article we used American legal doctri­ne, the scientific literature and specialized press archives. From these sources we analyzed the links between Copyright reforms and the institutionalization of the activity of free software developers, at the origin of Creative Commons licenses. The case of intangible goods property applied to tangibles goods shows how the community members and institutions legitimize their IT practices by means of several producers of norms, such as States or communities.

  7. The Use and Abuse of Research in the Public Domain

    Science.gov (United States)

    Reid, Alan

    2016-01-01

    In Australia, education think tanks have become increasingly influential in policy circles through "reports" to government, and in public debate through the mainstream media. Invariably think-tanks draw on educational research to lend authority and legitimacy to their work. This is desirable if the research deepens understandings about…

  8. Production of radioactive phantoms using a standard inkjet printer and the public domain multi-printing code GENIA.

    Science.gov (United States)

    Scafè, R; Auer, P; Bennati, P; La Porta, L; Pisacane, F; Cinti, M N; Pellegrini, R; De Vincentis, G; Conte, G; Pani, R

    2011-10-01

    The public domain code GENIA, based on multi-printing method for producing surface sources with appropriate radioactivity, is described. The conventional technique, running on standard inkjet printer with radio-marked ink filling, is improved by repeating elementary printing commands in the same band. Well outlined sources with adjustable radioactivity can be obtained without refilling. The intrinsic limitation of printable radioactivity, depending on the value available at nozzles at printing time, was overcome. In addition the method permits the accurate calibration of the amount of activity released onto the paper.

  9. Suburban development – a search for public domains in Danish suburban neighbourhoods

    DEFF Research Database (Denmark)

    Melgaard, Bente; Bech-Danielsen, Claus

    , potentials for bridge-building across the enclaves of the suburb are looked for through a combined architectural-anthropological mapping of public spaces in a specific suburb in Denmark, the analyses being carried out in the light of Hajer & Reijndorp’s definition of public domains and the term exchange....... The results so far show that suburban spaces with a potential for creating bridge-building across the segregated enclaves do exist but that, among other things, focus on spatial design is needed before actual public domains creating the basis for exchange are achieved....

  10. Semantic similarity in the biomedical domain: an evaluation across knowledge sources

    Directory of Open Access Journals (Sweden)

    Garla Vijay N

    2012-10-01

    Full Text Available Abstract Background Semantic similarity measures estimate the similarity between concepts, and play an important role in many text processing tasks. Approaches to semantic similarity in the biomedical domain can be roughly divided into knowledge based and distributional based methods. Knowledge based approaches utilize knowledge sources such as dictionaries, taxonomies, and semantic networks, and include path finding measures and intrinsic information content (IC measures. Distributional measures utilize, in addition to a knowledge source, the distribution of concepts within a corpus to compute similarity; these include corpus IC and context vector methods. Prior evaluations of these measures in the biomedical domain showed that distributional measures outperform knowledge based path finding methods; but more recent studies suggested that intrinsic IC based measures exceed the accuracy of distributional approaches. Limitations of previous evaluations of similarity measures in the biomedical domain include their focus on the SNOMED CT ontology, and their reliance on small benchmarks not powered to detect significant differences between measure accuracy. There have been few evaluations of the relative performance of these measures on other biomedical knowledge sources such as the UMLS, and on larger, recently developed semantic similarity benchmarks. Results We evaluated knowledge based and corpus IC based semantic similarity measures derived from SNOMED CT, MeSH, and the UMLS on recently developed semantic similarity benchmarks. Semantic similarity measures based on the UMLS, which contains SNOMED CT and MeSH, significantly outperformed those based solely on SNOMED CT or MeSH across evaluations. Intrinsic IC based measures significantly outperformed path-based and distributional measures. We released all code required to reproduce our results and all tools developed as part of this study as open source, available under http

  11. Effects of the airwave in time-domain marine controlled-source electromagnetics

    NARCIS (Netherlands)

    Hunziker, J.W.; Slob, E.C.; Mulder, W.

    2011-01-01

    In marine time-domain controlled-source electromagnetics (CSEM), there are two different acquisition methods: with horizontal sources for fast and simple data acquisition or with vertical sources for minimizing the effects of the airwave. Illustrations of the electric field as a function of space an

  12. Materialities of Law: Celebrity Production and the Public Domain

    Directory of Open Access Journals (Sweden)

    Esther Milne

    2009-12-01

    Full Text Available Celebrity production and consumption are powerful socio-economic forces. The celebrity functions as a significant economic resource for the commercial sector and plays a fundamental symbolic role within culture by providing a shared ‘vocabulary’ through which to understand contemporary social relations. A pivotal element of this allure is the process by which the celebrity figure is able to forge an intimate link with its audience, often producing public expressions of profound compassion, respect or revulsion. This process, however, is complicated by emerging participatory media forms whose impact is experienced as new conditions of possibility for celebrity production and consumption. As Marshall argues, video mash-ups of celebrity interviews, such as those of Christian Bale or Tom Cruise, are dramatically changing the relation between celebrity and audience (Marshall, 2006: 640. Meanings produced by these audience remixes challenge the extent to which a celebrity might control her image. So is the celebrity personality, therefore, a public or private commodity? Who owns the celebrity image within remix culture? Although the celebrity figure has been thoroughly researched in relation to its patterns of consumption; semiotic power; and industry construction; less attention has been focused on the forms of celebrity governance enabled by legislative and case law settings. How might the law deal with the significant economic and cultural power exercised within celebrity culture?

  13. Further Sources of Our Field's Embattled Public Reputation

    Science.gov (United States)

    Lilienfeld, Scott O.

    2012-01-01

    Responds to the comments made by Newman et al., Tryon, and Teo on the current author's original article. In the original article on public skepticism toward psychology, the author delineated eight reasons why many laypersons are dubious of our field's scientific status. The author argued that although some of these sources (e.g., hindsight bias,…

  14. Fast resolution of the neutron diffusion equation through public domain Ode codes

    Energy Technology Data Exchange (ETDEWEB)

    Garcia, V.M.; Vidal, V.; Garayoa, J. [Universidad Politecnica de Valencia, Departamento de Sistemas Informaticos, Valencia (Spain); Verdu, G. [Universidad Politecnica de Valencia, Departamento de Ingenieria Quimica y Nuclear, Valencia (Spain); Gomez, R. [I.E.S. de Tavernes Blanques, Valencia (Spain)

    2003-07-01

    The time-dependent neutron diffusion equation is a partial differential equation with source terms. The resolution method usually includes discretizing the spatial domain, obtaining a large system of linear, stiff ordinary differential equations (ODEs), whose resolution is computationally very expensive. Some standard techniques use a fixed time step to solve the ODE system. This can result in errors (if the time step is too large) or in long computing times (if the time step is too little). To speed up the resolution method, two well-known public domain codes have been selected: DASPK and FCVODE that are powerful codes for the resolution of large systems of stiff ODEs. These codes can estimate the error after each time step, and, depending on this estimation can decide which is the new time step and, possibly, which is the integration method to be used in the next step. With these mechanisms, it is possible to keep the overall error below the chosen tolerances, and, when the system behaves smoothly, to take large time steps increasing the execution speed. In this paper we address the use of the public domain codes DASPK and FCVODE for the resolution of the time-dependent neutron diffusion equation. The efficiency of these codes depends largely on the preconditioning of the big systems of linear equations that must be solved. Several pre-conditioners have been programmed and tested; it was found that the multigrid method is the best of the pre-conditioners tested. Also, it has been found that DASPK has performed better than FCVODE, being more robust for our problem.We can conclude that the use of specialized codes for solving large systems of ODEs can reduce drastically the computational work needed for the solution; and combining them with appropriate pre-conditioners, the reduction can be still more important. It has other crucial advantages, since it allows the user to specify the allowed error, which cannot be done in fixed step implementations; this, of course

  15. A novel moving mesh method based on the domain decomposition for traveling singular sources problems

    CERN Document Server

    Zhou, Xiaoyan; Liang, Keiwei

    2012-01-01

    This paper studies the numerical solution of traveling singular sources problems. A big challenge is the sources move with different speeds. Our work focus on a moving mesh method based on the domain decomposition. A predictor-corrector algorithm is derived to simulate the position of singular sources, which are described by some ordinary differential equations. The whole domain is splitted into several subdomains according to the positions of the sources. The endpoints of each subdomain are two adjacent sources. In each subdomain, moving mesh method is respectively applied. Moreover, the computation of jump $[\\dot{u}]$ is avoided and there are only two different cases discussed in the discretization of the PDE. Furthermore, the new method has a desired second-order of the spacial convergence. Numerical examples are presented to illustrate the convergence rates and the efficiency of the method. Blow-up phenomenon is also investigated for various motions of the sources.

  16. Transient nearfield acoustic holography based on an interpolated time-domain equivalent source method.

    Science.gov (United States)

    Zhang, Xiao-Zheng; Bi, Chuan-Xing; Zhang, Yong-Bin; Xu, Liang

    2011-09-01

    Transient nearfield acoustic holography based on an interpolated time-domain equivalent source method (ESM) is proposed to reconstruct transient acoustic fields directly in the time domain. Since the equivalent source strengths solved by the traditional time-domain ESM formulation cannot be used to reconstruct the pressure on the source surface directly, an interpolation function is introduced to develop an interpolated time-domain ESM formulation which permits one to deduce an iterative reconstruction process. As the reconstruction process is ill-conditioned and especially there exists a cumulative effect of errors, the Tikhonov regularization is used to stabilize the process. Numerical examples of reconstructing transient acoustic fields from a baffled planar piston, an impulsively accelerating sphere and a cube box, respectively, demonstrate that the proposed method not only can effectively reconstruct transient acoustic fields in the time domain, but also can visualize acoustic fields in the space domain. And, in the first numerical example, the cumulative effect of errors and the validity of using the Tikhonov regularization to suppress the errors are described.

  17. Safety features in nuclear power plants to eliminate the need of emergency planning in public domain

    Indian Academy of Sciences (India)

    P K Vijayan; M T Kamble; A K Nayak; K K Vaze; R K Sinha

    2013-10-01

    Following the Fukushima accident, the safety features of Nuclear Power Plants (NPP) are being re-examined worldwide including India to demonstrate capabilities to cope with severe accidents. In order to restore public confidence and support for nuclear power, it is felt necessary to design future NPPs with near zero impact outside the plant boundary and thus enabling elimination of emergency planning in public domain. Authors have identified a set of safety features which are needed to be incorporated in advanced reactors to achieve this goal. These features enabling prevention, termination, mitigation and containment of radioactivity for beyond design basis accidents arising from extreme natural events are essential for achieving the goal of elimination of emergency planning in public domain. Inherent safety characteristics, passive and engineered safety features to achieve these functions are discussed in this paper. Present trends and future developments in this direction are also described briefly.

  18. A compact source condition for modelling focused fields using the pseudospectral time-domain method.

    Science.gov (United States)

    Munro, Peter R T; Engelke, Daniel; Sampson, David D

    2014-03-10

    The pseudospectral time-domain (PSTD) method greatly extends the physical volume of biological tissue in which light scattering can be calculated, relative to the finite-difference time-domain (FDTD) method. We have developed an analogue of the total-field scattered-field source condition, as employed in FDTD, for introducing focussed illuminations into PSTD simulations. This new source condition requires knowledge of the incident field, and applies update equations, at a single plane in the PSTD grid. Numerical artifacts, usually associated with compact PSTD source conditions, are minimized by using a staggered grid. This source condition's similarity with that used by the FDTD suggests a way in which existing FDTD codes can be easily adapted to PSTD codes.

  19. 37 CFR 201.26 - Recordation of documents pertaining to computer shareware and donation of public domain computer...

    Science.gov (United States)

    2010-07-01

    ... pertaining to computer shareware and donation of public domain computer software. 201.26 Section 201.26... GENERAL PROVISIONS § 201.26 Recordation of documents pertaining to computer shareware and donation of public domain computer software. (a) General. This section prescribes the procedures for submission of...

  20. 32 CFR 644.24 - Acquisition by Transfer from other Government Departments or Agencies (except Public Domain).

    Science.gov (United States)

    2010-07-01

    ... Departments or Agencies (except Public Domain). 644.24 Section 644.24 National Defense Department of Defense... Departments or Agencies (except Public Domain). When a requirement develops for the acquisition of Government... of existing improvements, the estimated cost of the proposed construction, attitude of the...

  1. Public Health Education: Sources, Growth and Operational Philosophy.

    Science.gov (United States)

    Nyswander, Dorothy B

    2015-01-01

    An historical overview of public health education: its sources, development and operational philosophy, the contributions of many disciplines, particularly social science, and key individuals such as Lewin are traced through the past half century. The emergence of health education as a "helping profession" and the expansion of its focus to broader "marketplaces" of change are highlighted. The state of the art today is reviewed and the functions of health educators described with emphasis on "obtaining people's participation" in programs to bring about change. Problems still existing, particularly professional training, are addressed. © The Author(s) 2015.

  2. Diversity in public views toward stem cell sources and policies.

    Science.gov (United States)

    Einsiedel, Edna; Premji, Shainur; Geransar, Rose; Orton, Noelle C; Thavaratnam, Thushaanthini; Bennett, Laura K

    2009-06-01

    Studies of public views on stem cell research have traditionally focused on human embryonic stem cells. With more recent scientific research on developing other stem cell sources, a series of focus group studies was undertaken with Canadian adults to examine their views on different stem cell sources (adult, umbilical cord blood, human embryonic stem cells, somatic cell nuclear transfer or SCNT, and interspecies nuclear transfer, or iSCNT). Views on three different policy models--a permissive, middle-of-the-road and restrictive policy approach--were also explored. Participants were recruited from several different social groups including patients, young adults, seniors, members of two ethnic communities, and a mixed group of adults. Participants were generally supportive of the use of adult stem cell sources. While there was also majority support for the use of hESC and SCNT, this was conditional on strict regulatory oversight. There was also majority support for a permissive policy which allows research on hESC and SCNT. General themes that cut across different groups included the potential cost of new technologies to the health care system, issues around who would gain access to these technologies, and trust in the scientific establishment and regulatory systems. A diversity of viewpoints was found as participants justified their positions on stem cell sources and policy approaches, showing more complexity and nuance than has been generally portrayed.

  3. Time-Domain Convolutive Blind Source Separation Employing Selective-Tap Adaptive Algorithms

    Directory of Open Access Journals (Sweden)

    Pan Qiongfeng

    2007-01-01

    Full Text Available We investigate novel algorithms to improve the convergence and reduce the complexity of time-domain convolutive blind source separation (BSS algorithms. First, we propose MMax partial update time-domain convolutive BSS (MMax BSS algorithm. We demonstrate that the partial update scheme applied in the MMax LMS algorithm for single channel can be extended to multichannel time-domain convolutive BSS with little deterioration in performance and possible computational complexity saving. Next, we propose an exclusive maximum selective-tap time-domain convolutive BSS algorithm (XM BSS that reduces the interchannel coherence of the tap-input vectors and improves the conditioning of the autocorrelation matrix resulting in improved convergence rate and reduced misalignment. Moreover, the computational complexity is reduced since only half of the tap inputs are selected for updating. Simulation results have shown a significant improvement in convergence rate compared to existing techniques.

  4. Optimizing the domain wall fermion Dirac operator using the R-Stream source-to-source compiler

    CERN Document Server

    Lin, Meifeng; Langston, M Harper; Meister, Benoit; Baskaran, Muthu; Izubuchi, Taku; Jung, Chulwoo

    2015-01-01

    The application of the Dirac operator on a spinor field, the Dslash operation, is the most computation-intensive part of the lattice QCD simulations. It is often the key kernel to optimize to achieve maximum performance on various platforms. Here we report on a project to optimize the domain wall fermion Dirac operator in Columbia Physics System (CPS) using the R-Stream source-to-source compiler. Our initial target platform is the Intel PC clusters. We discuss the optimization strategies involved before and after the automatic code generation with R-Stream and present some preliminary benchmark results.

  5. Frequency-domain elastic full waveform inversion using encoded simultaneous sources

    Science.gov (United States)

    Jeong, W.; Son, W.; Pyun, S.; Min, D.

    2011-12-01

    Currently, numerous studies have endeavored to develop robust full waveform inversion and migration algorithms. These processes require enormous computational costs, because of the number of sources in the survey. To avoid this problem, the phase encoding technique for prestack migration was proposed by Romero (2000) and Krebs et al. (2009) proposed the encoded simultaneous-source inversion technique in the time domain. On the other hand, Ben-Hadj-Ali et al. (2011) demonstrated the robustness of the frequency-domain full waveform inversion with simultaneous sources for noisy data changing the source assembling. Although several studies on simultaneous-source inversion tried to estimate P- wave velocity based on the acoustic wave equation, seismic migration and waveform inversion based on the elastic wave equations are required to obtain more reliable subsurface information. In this study, we propose a 2-D frequency-domain elastic full waveform inversion technique using phase encoding methods. In our algorithm, the random phase encoding method is employed to calculate the gradients of the elastic parameters, source signature estimation and the diagonal entries of approximate Hessian matrix. The crosstalk for the estimated source signature and the diagonal entries of approximate Hessian matrix are suppressed with iteration as for the gradients. Our 2-D frequency-domain elastic waveform inversion algorithm is composed using the back-propagation technique and the conjugate-gradient method. Source signature is estimated using the full Newton method. We compare the simultaneous-source inversion with the conventional waveform inversion for synthetic data sets of the Marmousi-2 model. The inverted results obtained by simultaneous sources are comparable to those obtained by individual sources, and source signature is successfully estimated in simultaneous source technique. Comparing the inverted results using the pseudo Hessian matrix with previous inversion results

  6. Combining Superdirective Beamforming and Frequency-Domain Blind Source Separation for Highly Reverberant Signals

    Directory of Open Access Journals (Sweden)

    Lin Wang

    2010-01-01

    Full Text Available Frequency-domain blind source separation (BSS performs poorly in high reverberation because the independence assumption collapses at each frequency bins when the number of bins increases. To improve the separation result, this paper proposes a method which combines two techniques by using beamforming as a preprocessor of blind source separation. With the sound source locations supposed to be known, the mixed signals are dereverberated and enhanced by beamforming; then the beamformed signals are further separated by blind source separation. To implement the proposed method, a superdirective fixed beamformer is designed for beamforming, and an interfrequency dependence-based permutation alignment scheme is presented for frequency-domain blind source separation. With beamforming shortening mixing filters and reducing noise before blind source separation, the combined method works better in reverberation. The performance of the proposed method is investigated by separating up to 4 sources in different environments with reverberation time from 100 ms to 700 ms. Simulation results verify the outperformance of the proposed method over using beamforming or blind source separation alone. Analysis demonstrates that the proposed method is computationally efficient and appropriate for real-time processing.

  7. 77 FR 22067 - Publication of Inflation Adjustment Factor, Nonconventional Source Fuel Credit, and Reference...

    Science.gov (United States)

    2012-04-12

    ... Internal Revenue Service Publication of Inflation Adjustment Factor, Nonconventional Source Fuel Credit, and Reference Price for Calendar Year 2011 AGENCY: Internal Revenue Service (IRS), Treasury. ACTION: Notice. SUMMARY: Publication of the inflation adjustment factor, nonconventional source fuel credit, and...

  8. Time-domain single-source integral equations for analyzing scattering from homogeneous penetrable objects

    KAUST Repository

    Valdés, Felipe

    2013-03-01

    Single-source time-domain electric-and magnetic-field integral equations for analyzing scattering from homogeneous penetrable objects are presented. Their temporal discretization is effected by using shifted piecewise polynomial temporal basis functions and a collocation testing procedure, thus allowing for a marching-on-in-time (MOT) solution scheme. Unlike dual-source formulations, single-source equations involve space-time domain operator products, for which spatial discretization techniques developed for standalone operators do not apply. Here, the spatial discretization of the single-source time-domain integral equations is achieved by using the high-order divergence-conforming basis functions developed by Graglia alongside the high-order divergence-and quasi curl-conforming (DQCC) basis functions of Valdés The combination of these two sets allows for a well-conditioned mapping from div-to curl-conforming function spaces that fully respects the space-mapping properties of the space-time operators involved. Numerical results corroborate the fact that the proposed procedure guarantees accuracy and stability of the MOT scheme. © 2012 IEEE.

  9. Fourier domain mode-locked swept source at 1050 nm based on a tapered amplifier

    DEFF Research Database (Denmark)

    Marschall, Sebastian; Klein, Thomas; Wieser, Wolfgang;

    2010-01-01

    While swept source optical coherence tomography (OCT) in the 1050 nm range is promising for retinal imaging, there are certain challenges. Conventional semiconductor gain media have limited output power, and the performance of high-speed Fourier domain mode-locked (FDML) lasers suffers from...... achieved stable FDML operation, exploiting the full bandwidth of the tapered amplifier despite high dispersion. The light source operates at a repetition rate of 116 kHz with an effective average output power in excess of 30 mW. With a total sweep range of 70 nm, we achieved an axial resolution of 15 μm...

  10. Daas: A Web-based System for User-specific Dietary Analysis and Advice for the Public Healthcare Domain

    Institute of Scientific and Technical Information of China (English)

    Deirdre Nugent; Kudakwashe Dube; Wu Bing

    2003-01-01

    This paper presents a Dietary Analysis and Advice System (DAAS), a web-based system for providing, within the public healthcare domain, user-specific diet advice based on a preliminary analysis of current diet or eating habits and lifestyle, using knowledge from domain expertise and experts' interpretation of national dietary guidelines.

  11. Time domain localization technique with sparsity constraint for imaging acoustic sources

    Science.gov (United States)

    Padois, Thomas; Doutres, Olivier; Sgard, Franck; Berry, Alain

    2017-09-01

    This paper addresses source localization technique in time domain for broadband acoustic sources. The objective is to accurately and quickly detect the position and amplitude of noise sources in workplaces in order to propose adequate noise control options and prevent workers hearing loss or safety risk. First, the generalized cross correlation associated with a spherical microphone array is used to generate an initial noise source map. Then a linear inverse problem is defined to improve this initial map. Commonly, the linear inverse problem is solved with an l2 -regularization. In this study, two sparsity constraints are used to solve the inverse problem, the orthogonal matching pursuit and the truncated Newton interior-point method. Synthetic data are used to highlight the performances of the technique. High resolution imaging is achieved for various acoustic sources configurations. Moreover, the amplitudes of the acoustic sources are correctly estimated. A comparison of computation times shows that the technique is compatible with quasi real-time generation of noise source maps. Finally, the technique is tested with real data.

  12. ORGANIZATIONAL STRESS SOURCES AND SOLUTION PROPOSALS IN PUBLIC TRANSPORT

    Directory of Open Access Journals (Sweden)

    Mehmet Zennur GÜRBÜZ

    2017-09-01

    Full Text Available Organizational stress is a concept which can have negative effects for both the workers and the organizations. The purpose of this study is to determine and classify the organizational stress sources that public transportation are exposed to, and to provide suggestions for managing these stress factors. A comprehensive literature survey is made in organizational stress factors and the following classes are identified: work structure, organizational structure, organizational policy, within-company relations and physical conditions. A questionnaire is developed forAnkara EGO General Directorate; applied to 2.137 drivers in Ankara in 2016 with a meaningful return of 1.554 data sets, representing 72% of the population and results are statistically analysed. Descriptive statistics, factor analysis and related validity and regional variance analyses are performed by SPSS (22.0 software. The study revealed that: drivers are exposed to mid-level stess; and most critical stress causes are “injustice and/or insufficiency of salaries”, “aggresive, violent behavior and verbal abuse of passengers towards drivers”, “fear of losing jobs or renewal of the contract”. A significant level of variation in stres levels are identified with respect to different regions of Ankara where drivers are assigned.  Suggestions are made in relation to different stres causes to lower the stress levels exposed.

  13. Open access high throughput drug discovery in the public domain: a Mount Everest in the making.

    Science.gov (United States)

    Roy, Anuradha; McDonald, Peter R; Sittampalam, Sitta; Chaguturu, Rathnam

    2010-11-01

    High throughput screening (HTS) facilitates screening large numbers of compounds against a biochemical target of interest using validated biological or biophysical assays. In recent years, a significant number of drugs in clinical trails originated from HTS campaigns, validating HTS as a bona fide mechanism for hit finding. In the current drug discovery landscape, the pharmaceutical industry is embracing open innovation strategies with academia to maximize their research capabilities and to feed their drug discovery pipeline. The goals of academic research have therefore expanded from target identification and validation to probe discovery, chemical genomics, and compound library screening. This trend is reflected in the emergence of HTS centers in the public domain over the past decade, ranging in size from modestly equipped academic screening centers to well endowed Molecular Libraries Probe Centers Network (MLPCN) centers funded by the NIH Roadmap initiative. These centers facilitate a comprehensive approach to probe discovery in academia and utilize both classical and cutting-edge assay technologies for executing primary and secondary screening campaigns. The various facets of academic HTS centers as well as their implications on technology transfer and drug discovery are discussed, and a roadmap for successful drug discovery in the public domain is presented. New lead discovery against therapeutic targets, especially those involving the rare and neglected diseases, is indeed a Mount Everestonian size task, and requires diligent implementation of pharmaceutical industry's best practices for a successful outcome.

  14. 76 FR 75875 - Defense Federal Acquisition Regulation Supplement; Open Source Software Public Meeting

    Science.gov (United States)

    2011-12-05

    ... Defense Acquisition Regulations System Defense Federal Acquisition Regulation Supplement; Open Source... regarding the use of open source software in DoD contracts. DATES: Public Meeting: January 12, 2012, from 10... for the discussions in the meeting. Please cite ``Public Meeting, DFARS--Open Source Software'' in all...

  15. Mediated Sources of Public Confidence: Lazarsfeld and Merton Revisited.

    Science.gov (United States)

    Simonson, Peter

    1999-01-01

    Contributes to scholarship on mass media's role in generating public confidence. Discusses the current crisis of confidence, confidence as "faith-together," varied routes by which media confer status, and ways both journalistic expose and public debate can generate cynicism and undercut public confidence. Sketches three types of civil…

  16. Workflow for near-surface velocity automatic estimation: Source-domain full-traveltime inversion followed by waveform inversion

    KAUST Repository

    Liu, Lu

    2017-08-17

    This paper presents a workflow for near-surface velocity automatic estimation using the early arrivals of seismic data. This workflow comprises two methods, source-domain full traveltime inversion (FTI) and early-arrival waveform inversion. Source-domain FTI is capable of automatically generating a background velocity that can kinematically match the reconstructed plane-wave sources of early arrivals with true plane-wave sources. This method does not require picking first arrivals for inversion, which is one of the most challenging aspects of ray-based first-arrival tomographic inversion. Moreover, compared with conventional Born-based methods, source-domain FTI can distinguish between slower or faster initial model errors via providing the correct sign of the model gradient. In addition, this method does not need estimation of the source wavelet, which is a requirement for receiver-domain wave-equation velocity inversion. The model derived from source-domain FTI is then used as input to early-arrival waveform inversion to obtain the short-wavelength velocity components. We have tested the workflow on synthetic and field seismic data sets. The results show source-domain FTI can generate reasonable background velocities for early-arrival waveform inversion even when subsurface velocity reversals are present and the workflow can produce a high-resolution near-surface velocity model.

  17. openPSTD: The open source pseudospectral time-domain method for acoustic propagation

    Science.gov (United States)

    Hornikx, Maarten; Krijnen, Thomas; van Harten, Louis

    2016-06-01

    An open source implementation of the Fourier pseudospectral time-domain (PSTD) method for computing the propagation of sound is presented, which is geared towards applications in the built environment. Being a wave-based method, PSTD captures phenomena like diffraction, but maintains efficiency in processing time and memory usage as it allows to spatially sample close to the Nyquist criterion, thus keeping both the required spatial and temporal resolution coarse. In the implementation it has been opted to model the physical geometry as a composition of rectangular two-dimensional subdomains, hence initially restricting the implementation to orthogonal and two-dimensional situations. The strategy of using subdomains divides the problem domain into local subsets, which enables the simulation software to be built according to Object-Oriented Programming best practices and allows room for further computational parallelization. The software is built using the open source components, Blender, Numpy and Python, and has been published under an open source license itself as well. For accelerating the software, an option has been included to accelerate the calculations by a partial implementation of the code on the Graphical Processing Unit (GPU), which increases the throughput by up to fifteen times. The details of the implementation are reported, as well as the accuracy of the code.

  18. Controlled source time-domain electromagnetic methods for seafloor electric conductivity mapping

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    Theoretical studies of some controlled-source electromagnetic methods, especially the horizontal coaxial magnetic dipole-dipole and horizontal collinear electric dipole-dipole electromagnetic methods, which are capable of accuratelymeasuring the relatively low conductivity of the seafioor were reviewed. Marine electromagnetic instrumentations, espe-cially the time-domain horizontal magnetic dipole-dipole system and horizontal electric dipole-dipole system which havebeen designed and constructed in the Geophysics Division of the University of Toronto, were provided with applications togootechnical studies on the shelf and deep ocean surveys near the mid-ocean ridges

  19. Spectral-domain and swept-source OCT imaging of asteroid hyalosis: a case report.

    Science.gov (United States)

    Alasil, Tarek; Adhi, Mehreen; Liu, Jonathan J; Fujimoto, James G; Duker, Jay S; Baumal, Caroline R

    2014-01-01

    A 72-year-old man with diabetes was referred to the retina clinic for diabetic retinopathy. Detailed funduscopic examination of the left eye was limited by prominent asteroid hyalosis. Spectral-domain (SD) and swept-source (SS) optical coherence tomography (OCT) were utilized to examine the vitreous, vitreoretinal interface, and the morphology of the retina. Asteroid hyalosis induced artifacts of the OCT images, which resolved when the appropriate imaging protocols were applied. SS-OCT may show superior diagnostic and preoperative capabilities when compared to SD-OCT in the settings of asteroid hyalosis-induced media opacity.

  20. SafeZone: A Hierarchical Inter-Domain Authenticated Source Address Validation Solution

    CERN Document Server

    Li, Jie; Xu, Ke

    2011-01-01

    Next generation Internet is highly concerned about the issue of reliability. Principally, the foundation of reliability is authentication of the source IP address. With the signature-and-verification based defense mechanisms available today, unfortunately, there is a lack of hierarchical architecture, which makes the structure of the trust alliance excessively flat and single. Moreover, with the increasing scale of the trust alliance, costs of validation grow so quickly that they do not adapt to incremental deployment. Via comparison with traditional solutions, this article proposes a hierarchical, inter-domain authenticated source address validation solution named SafeZone. SafeZone employs two intelligent designs, lightweight tag replacement and a hierarchical partitioning scheme, each of which helps to ensure that SafeZone can construct trustworthy and hierarchical trust alliances without the negative influences and complex operations on de facto networks. Extensive experiments also indicate that SafeZone ...

  1. Systematic analysis of public domain compound potency data identifies selective molecular scaffolds across druggable target families.

    Science.gov (United States)

    Hu, Ye; Wassermann, Anne Mai; Lounkine, Eugen; Bajorath, Jürgen

    2010-01-28

    Molecular scaffolds that yield target family-selective compounds are of high interest in pharmaceutical research. There continues to be considerable debate in the field as to whether chemotypes with a priori selectivity for given target families and/or targets exist and how they might be identified. What do currently available data tell us? We present a systematic and comprehensive selectivity-centric analysis of public domain target-ligand interactions. More than 200 molecular scaffolds are identified in currently available active compounds that are selective for established target families. A subset of these scaffolds is found to produce compounds with high selectivity for individual targets among closely related ones. These scaffolds are currently underrepresented in approved drugs.

  2. The international river interface cooperative: Public domain flow and morphodynamics software for education and applications

    Science.gov (United States)

    Nelson, Jonathan M.; Shimizu, Yasuyuki; Abe, Takaaki; Asahi, Kazutake; Gamou, Mineyuki; Inoue, Takuya; Iwasaki, Toshiki; Kakinuma, Takaharu; Kawamura, Satomi; Kimura, Ichiro; Kyuka, Tomoko; McDonald, Richard R.; Nabi, Mohamed; Nakatsugawa, Makoto; Simões, Francisco R.; Takebayashi, Hiroshi; Watanabe, Yasunori

    2016-07-01

    This paper describes a new, public-domain interface for modeling flow, sediment transport and morphodynamics in rivers and other geophysical flows. The interface is named after the International River Interface Cooperative (iRIC), the group that constructed the interface and many of the current solvers included in iRIC. The interface is entirely free to any user and currently houses thirteen models ranging from simple one-dimensional models through three-dimensional large-eddy simulation models. Solvers are only loosely coupled to the interface so it is straightforward to modify existing solvers or to introduce other solvers into the system. Six of the most widely-used solvers are described in detail including example calculations to serve as an aid for users choosing what approach might be most appropriate for their own applications. The example calculations range from practical computations of bed evolution in natural rivers to highly detailed predictions of the development of small-scale bedforms on an initially flat bed. The remaining solvers are also briefly described. Although the focus of most solvers is coupled flow and morphodynamics, several of the solvers are also specifically aimed at providing flood inundation predictions over large spatial domains. Potential users can download the application, solvers, manuals, and educational materials including detailed tutorials at www.-i-ric.org. The iRIC development group encourages scientists and engineers to use the tool and to consider adding their own methods to the iRIC suite of tools.

  3. The international river interface cooperative: Public domain flow and morphodynamics software for education and applications

    Science.gov (United States)

    Nelson, Jonathan M.; Shimizu, Yasuyuki; Abe, Takaaki; Asahi, Kazutake; Gamou, Mineyuki; Inoue, Takuya; Iwasaki, Toshiki; Kakinuma, Takaharu; Kawamura, Satomi; Kimura, Ichiro; Kyuka, Tomoko; McDonald, Richard R.; Nabi, Mohamed; Nakatsugawa, Makoto; Simoes, Francisco J.; Takebayashi, Hiroshi; Watanabe, Yasunori

    2016-01-01

    This paper describes a new, public-domain interface for modeling flow, sediment transport and morphodynamics in rivers and other geophysical flows. The interface is named after the International River Interface Cooperative (iRIC), the group that constructed the interface and many of the current solvers included in iRIC. The interface is entirely free to any user and currently houses thirteen models ranging from simple one-dimensional models through three-dimensional large-eddy simulation models. Solvers are only loosely coupled to the interface so it is straightforward to modify existing solvers or to introduce other solvers into the system. Six of the most widely-used solvers are described in detail including example calculations to serve as an aid for users choosing what approach might be most appropriate for their own applications. The example calculations range from practical computations of bed evolution in natural rivers to highly detailed predictions of the development of small-scale bedforms on an initially flat bed. The remaining solvers are also briefly described. Although the focus of most solvers is coupled flow and morphodynamics, several of the solvers are also specifically aimed at providing flood inundation predictions over large spatial domains. Potential users can download the application, solvers, manuals, and educational materials including detailed tutorials at www.-i-ric.org. The iRIC development group encourages scientists and engineers to use the tool and to consider adding their own methods to the iRIC suite of tools.

  4. Time-distance domain transformation for Acoustic Emission source localization in thin metallic plates.

    Science.gov (United States)

    Grabowski, Krzysztof; Gawronski, Mateusz; Baran, Ireneusz; Spychalski, Wojciech; Staszewski, Wieslaw J; Uhl, Tadeusz; Kundu, Tribikram; Packo, Pawel

    2016-05-01

    Acoustic Emission used in Non-Destructive Testing is focused on analysis of elastic waves propagating in mechanical structures. Then any information carried by generated acoustic waves, further recorded by a set of transducers, allow to determine integrity of these structures. It is clear that material properties and geometry strongly impacts the result. In this paper a method for Acoustic Emission source localization in thin plates is presented. The approach is based on the Time-Distance Domain Transform, that is a wavenumber-frequency mapping technique for precise event localization. The major advantage of the technique is dispersion compensation through a phase-shifting of investigated waveforms in order to acquire the most accurate output, allowing for source-sensor distance estimation using a single transducer. The accuracy and robustness of the above process are also investigated. This includes the study of Young's modulus value and numerical parameters influence on damage detection. By merging the Time-Distance Domain Transform with an optimal distance selection technique, an identification-localization algorithm is achieved. The method is investigated analytically, numerically and experimentally. The latter involves both laboratory and large scale industrial tests.

  5. Source imaging of potential fields through a matrix space-domain algorithm

    Science.gov (United States)

    Baniamerian, Jamaledin; Oskooi, Behrooz; Fedi, Maurizio

    2017-01-01

    Imaging of potential fields yields a fast 3D representation of the source distribution of potential fields. Imaging methods are all based on multiscale methods allowing the source parameters of potential fields to be estimated from a simultaneous analysis of the field at various scales or, in other words, at many altitudes. Accuracy in performing upward continuation and differentiation of the field has therefore a key role for this class of methods. We here describe an accurate method for performing upward continuation and vertical differentiation in the space-domain. We perform a direct discretization of the integral equations for upward continuation and Hilbert transform; from these equations we then define matrix operators performing the transformation, which are symmetric (upward continuation) or anti-symmetric (differentiation), respectively. Thanks to these properties, just the first row of the matrices needs to be computed, so to decrease dramatically the computation cost. Our approach allows a simple procedure, with the advantage of not involving large data extension or tapering, as due instead in case of Fourier domain computation. It also allows level-to-drape upward continuation and a stable differentiation at high frequencies; finally, upward continuation and differentiation kernels may be merged into a single kernel. The accuracy of our approach is shown to be important for multi-scale algorithms, such as the continuous wavelet transform or the DEXP (depth from extreme point method), because border errors, which tend to propagate largely at the largest scales, are radically reduced. The application of our algorithm to synthetic and real-case gravity and magnetic data sets confirms the accuracy of our space domain strategy over FFT algorithms and standard convolution procedures.

  6. Miniaturized pulsed laser source for time-domain diffuse optics routes to wearable devices

    Science.gov (United States)

    Di Sieno, Laura; Nissinen, Jan; Hallman, Lauri; Martinenghi, Edoardo; Contini, Davide; Pifferi, Antonio; Kostamovaara, Juha; Mora, Alberto Dalla

    2017-08-01

    We validate a miniaturized pulsed laser source for use in time-domain (TD) diffuse optics, following rigorous and shared protocols for performance assessment of this class of devices. This compact source (12×6 mm2) has been previously developed for range finding applications and is able to provide short, high energy (˜100 ps, ˜0.5 nJ) optical pulses at up to 1 MHz repetition rate. Here, we start with a basic level laser characterization with an analysis of suitability of this laser for the diffuse optics application. Then, we present a TD optical system using this source and its performances in both recovering optical properties of tissue-mimicking homogeneous phantoms and in detecting localized absorption perturbations. Finally, as a proof of concept of in vivo application, we demonstrate that the system is able to detect hemodynamic changes occurring in the arm of healthy volunteers during a venous occlusion. Squeezing the laser source in a small footprint removes a key technological bottleneck that has hampered so far the realization of a miniaturized TD diffuse optics system, able to compete with already assessed continuous-wave devices in terms of size and cost, but with wider performance potentialities, as demonstrated by research over the last two decades.

  7. Fourier domain mode-locked swept source at 1050 nm based on a tapered amplifier.

    Science.gov (United States)

    Marschall, Sebastian; Klein, Thomas; Wieser, Wolfgang; Biedermann, Benjamin R; Hsu, Kevin; Hansen, Kim P; Sumpf, Bernd; Hasler, Karl-Heinz; Erbert, Götz; Jensen, Ole B; Pedersen, Christian; Huber, Robert; Andersen, Peter E

    2010-07-19

    While swept source optical coherence tomography (OCT) in the 1050 nm range is promising for retinal imaging, there are certain challenges. Conventional semiconductor gain media have limited output power, and the performance of high-speed Fourier domain mode-locked (FDML) lasers suffers from chromatic dispersion in standard optical fiber. We developed a novel light source with a tapered amplifier as gain medium, and investigated the FDML performance comparing two fiber delay lines with different dispersion properties. We introduced an additional gain element into the resonator, and thereby achieved stable FDML operation, exploiting the full bandwidth of the tapered amplifier despite high dispersion. The light source operates at a repetition rate of 116 kHz with an effective average output power in excess of 30 mW. With a total sweep range of 70 nm, we achieved an axial resolution of 15 microm in air (approximately 11 microm in tissue) in OCT measurements. As our work shows, tapered amplifiers are suitable gain media for swept sources at 1050 nm with increased output power, while high gain counteracts dispersion effects in an FDML laser.

  8. Integrating NASA's Land Analysis System (LAS) image processing software with an appropriate Geographic Information System (GIS): A review of candidates in the public domain

    Science.gov (United States)

    Rochon, Gilbert L.

    1989-01-01

    A user requirements analysis (URA) was undertaken to determine and appropriate public domain Geographic Information System (GIS) software package for potential integration with NASA's LAS (Land Analysis System) 5.0 image processing system. The necessity for a public domain system was underscored due to the perceived need for source code access and flexibility in tailoring the GIS system to the needs of a heterogenous group of end-users, and to specific constraints imposed by LAS and its user interface, Transportable Applications Executive (TAE). Subsequently, a review was conducted of a variety of public domain GIS candidates, including GRASS 3.0, MOSS, IEMIS, and two university-based packages, IDRISI and KBGIS. The review method was a modified version of the GIS evaluation process, development by the Federal Interagency Coordinating Committee on Digital Cartography. One IEMIS-derivative product, the ALBE (AirLand Battlefield Environment) GIS, emerged as the most promising candidate for integration with LAS. IEMIS (Integrated Emergency Management Information System) was developed by the Federal Emergency Management Agency (FEMA). ALBE GIS is currently under development at the Pacific Northwest Laboratory under contract with the U.S. Army Corps of Engineers' Engineering Topographic Laboratory (ETL). Accordingly, recommendations are offered with respect to a potential LAS/ALBE GIS linkage and with respect to further system enhancements, including coordination with the development of the Spatial Analysis and Modeling System (SAMS) GIS in Goddard's IDM (Intelligent Data Management) developments in Goddard's National Space Science Data Center.

  9. Influencing domain of peripheral sources in the urban heavy pollution process of Beijing

    Institute of Scientific and Technical Information of China (English)

    XU Xiangde; Jhon Chan; ZHOU Li; ZHOU Xiuji; YAN Peng; WENG Yonghui; TAO Shuwang; MAO Jitai; DING Guoan; BIAN Lingen

    2005-01-01

    The effect of city's peripheral pollution sources is one of the key issues urgent to be solved in the decision-making of Beijing's environmental pollution control. This paper comprehensively analyses the surface observations, and the satellite remote sensing data of Moderate Resolution Imaging Spectroradiometer (MODIS) and Total Ozone Mapping Spectrometer (TOMS) during the Beijing City Atmospheric Pollution Experiment (BECAPEX) from January to March, 2001, presents an "upstream" wind field resultant vector method for tracing peripheral pollution sources, and finds that the features of the urban heavy pollution processes of Beijing are significantly correlated with the impact of the emission sources of southern peripheral cities, and the pollutants transferred northwards from distant upstream sources are retarded by the U-shaped "valley" topography in Beijing's periphery. The two factors are responsible for the formation of the S-N zonal influencing domain of pollutants from the southern peripheral areas to Beijing. The paper also comprehensively analyses the features of flow field in the heavy pollution process in the Beijing region, and compares the heavy pollution process with samples of good air-quality days from January to March, 2001. The experiment of Hybrid Single-Particle Lagrangian Integrated Trajectory model (HYSPLIT-4) further reveals the diffusion trajectory of pollutants of the cities in Hebei and Shandong provinces and Tianjin city in the heavy pollution process of Beijing, and the simulations of the Regional Atmosphere Model System (RAMS) confirm the possible contribution of peripheral sources to the exceptionally heavy pollution process of the urban area of Beijing, thus revealing that the input of pollutants from southern peripheral cities is one of the important factors responsible for aggravating urban heavy pollution processes.

  10. Performance Analysis of Fission and Surface Source Iteration Method for Domain Decomposed Monte Carlo Whole-Core Calculation

    Energy Technology Data Exchange (ETDEWEB)

    Jo, Yu Gwon; Oh, Yoo Min; Park, Hyang Kyu; Park, Kang Soon; Cho, Nam Zin [KAIST, Daejeon (Korea, Republic of)

    2016-05-15

    In this paper, two issues in the FSS iteration method, i.e., the waiting time for surface source data and the variance biases in local tallies are investigated for the domain decomposed, 3-D continuous-energy whole-core calculation. The fission sources are provided as usual, while the surface sources are provided by banking MC particles crossing local domain boundaries. The surface sources serve as boundary conditions for nonoverlapping local problems, so that each local problem can be solved independently. In this paper, two issues in the FSS iteration are investigated. One is quantifying the waiting time of processors to receive surface source data. By using nonblocking communication, 'time penalty' to wait for the arrival of the surface source data is reduced. The other important issue is underestimation of the sample variance of the tally because of additional inter-iteration correlations in surface sources. From the numerical results on a 3-D whole-core test problem, it is observed that the time penalty is negligible in the FSS iteration method and that the real variances of both pin powers and assembly powers are estimated by the HB method. For those purposes, three cases; Case 1 (1 local domain), Case 2 (4 local domains), Case 3 (16 local domains) are tested. For both Cases 2 and 3, the time penalties for waiting are negligible compared to the source-tracking times. However, for finer divisions of local domains, the loss of parallel efficiency caused by the different number of sources for local domains in symmetric locations becomes larger due to the stochastic errors in source distributions. For all test cases, the HB method very well estimates the real variances of local tallies. However, it is also noted that the real variances of local tallies estimated by the HB method show slightly smaller than the real variances obtained from 30 independent batch runs and the deviations become larger for finer divisions of local domains. The batch size used

  11. Stability of Language in Childhood: A Multi-Age, -Domain, -Measure, and -Source Study

    Science.gov (United States)

    Bornstein, Marc H.; Putnick, Diane L.

    2011-01-01

    The stability of language across childhood is traditionally assessed by exploring longitudinal relations between individual language measures. However, language encompasses many domains and varies with different sources (child speech, parental report, experimenter assessment). This study evaluated individual variation in multiple age-appropriate measures of child language derived from multiple sources and stability between their latent variables in 192 young children across more than 2 years. Structural equation modeling demonstrated the loading of multiple measures of child language from different sources on single latent variables of language at ages 20 and 48 months. A large stability coefficient (r = .84) obtained between the 2 language latent variables. This stability obtained even when accounting for family socioeconomic status, maternal verbal intelligence, education, speech, and tendency to respond in a socially desirable fashion, and child social competence. Stability was also equivalent for children in diverse childcare situations and for girls and boys. Across age, from the beginning of language acquisition to just before school entry, aggregating multiple age-appropriate methods and measures at each age and multiple reporters, children show strong stability of individual differences in general language development. PMID:22004343

  12. Strict lower bounds with separation of sources of error in non-overlapping domain decomposition methods

    CERN Document Server

    Rey, Valentine; Rey, Christian

    2016-01-01

    This article deals with the computation of guaranteed lower bounds of the error in the framework of finite element (FE) and domain decomposition (DD) methods. In addition to a fully parallel computation, the proposed lower bounds separate the algebraic error (due to the use of a DD iterative solver) from the discretization error (due to the FE), which enables the steering of the iterative solver by the discretization error. These lower bounds are also used to improve the goal-oriented error estimation in a substructured context. Assessments on 2D static linear mechanic problems illustrate the relevance of the separation of sources of error and the lower bounds' independence from the substructuring. We also steer the iterative solver by an objective of precision on a quantity of interest. This strategy consists in a sequence of solvings and takes advantage of adaptive remeshing and recycling of search directions.

  13. Social internet sites as a source of public health information.

    Science.gov (United States)

    Vance, Karl; Howe, William; Dellavalle, Robert P

    2009-04-01

    Social media websites, such as YouTube, Facebook, MySpace, Twitter, and Second Life are rapidly emerging as popular sources of health information especially for teens and young adults. Social media marketing carries the advantages of low cost, rapid transmission through a wide community, and user interaction. Disadvantages include blind authorship, lack of source citation, and presentation of opinion as fact. Dermatologists and other health care providers should recognize the importance of social media websites and their potential usefulness for disseminating health information.

  14. Assessing water availability over peninsular Malaysia using public domain satellite data products

    Science.gov (United States)

    Ali, M. I.; Hashim, M.; Zin, H. S. M.

    2014-02-01

    Water availability monitoring is an essential task for water resource sustainability and security. In this paper, the assessment of satellite remote sensing technique for determining water availability is reported. The water-balance analysis is used to compute the spatio-temporal water availability with main inputs; the precipitation and actual evapotranspiration rate (AET), both fully derived from public-domain satellite products of Tropical Rainfall Measurement Mission (TRMM) and MODIS, respectively. Both these satellite products were first subjected to calibration to suit corresponding selected local precipitation and AET samples. Multi-temporal data sets acquired 2000-2010 were used in this study. The results of study, indicated strong agreement of monthly water availability with the basin flow rate (r2 = 0.5, p < 0.001). Similar agreements were also noted between the estimated annual average water availability with the in-situ measurement. It is therefore concluded that the method devised in this study provide a new alternative for water availability mapping over large area, hence offers the only timely and cost-effective method apart from providing comprehensive spatio-temporal patterns, crucial in water resource planning to ensure water security.

  15. Public domain small-area cancer incidence data for New York State, 2005-2009

    Directory of Open Access Journals (Sweden)

    Francis P. Boscoe

    2016-04-01

    Full Text Available There has long been a demand for cancer incidence data at a fine geographic resolution for use in etiologic hypothesis generation and testing, methodological evaluation and teaching. In this paper we describe a public domain dataset containing data for 23 anatomic sites of cancer diagnosed in New York State, USA between 2005 and 2009 at the census block group level. The dataset includes 524,503 tumours distributed across 13,823 block groups with an average population of about 1400. In addition, the data have been linked with race/ethnicity and with socioeconomic indicators such as income, educational attainment and language proficiency. We demonstrate the application of the dataset by confirming two well-established relationships: that between breast cancer and median household income and that between stomach cancer and Asian race. We foresee that this dataset will serve as the basis for a wide range of spatial analyses and as a benchmark for evaluating spatial methods in the future.

  16. Preserving Madagascar's Natural Heritage: The Importance of Keeping the Island's Vertebrate Fossils in the Public Domain

    Directory of Open Access Journals (Sweden)

    Karen E. Samonds

    2006-12-01

    Full Text Available The origin of Madagascar’s highly endemic vertebrate fauna remains one of the great unsolved mysteries of natural history. From what landmasses did the basal stocks of this unique and imbalanced fauna come? When and how did the ancestral populations arrive on the island? How rapidly did they diversify, and why? The most direct means of addressing these questions, and other enigmas concerning the evolutionary and biogeographic history of Madagascar’s vertebrate fauna, is through discovery of fossils from a sequence of well-dated geological horizons. Many fossils relevant to these queries have been discovered by paleontologists in recent years ... but many more are being lost to commercial enterprises, both foreign and domestic, that have little or no regard for the scientific significance of fossils. The objectives of this essay are to 1 provide an overview of Madagascar’s vertebrate fossil record and its importance, 2 raise awareness concerning the illegal collection, exportation, and sale of vertebrate fossils, and 3 stress the importance of keeping vertebrate fossils from the island in the public domain. In light of these issues, we underscore the necessity for development of adequate repositories and support infrastructure in Madagascar to safeguard and display the country’s vertebrate fossil collections; doing so would ensure the preservation and appreciation of Madagascar’s rich natural heritage for future generations of scientists and Malagasy citizens alike.

  17. A simple technique for morphological measurement of cerebral arterial circle variations using public domain software (Osiris).

    Science.gov (United States)

    Ansari, Saeed; Dadmehr, Majid; Eftekhar, Behzad; McConnell, Douglas J; Ganji, Sarah; Azari, Hassan; Kamali-Ardakani, Shahab; Hoh, Brian L; Mocco, J

    2011-12-01

    This article describes a straightforward method to measure the dimensions and identify morphological variations in the cerebral arterial circle using the general-purpose software program Osiris. This user-friendly and portable program displays, manipulates, and analyzes medical digital images, and it has the capability to determine morphometric properties of selected blood vessels (or other anatomical structures) in humans and animals. To ascertain morphometric variations in the cerebral arterial circle, 132 brains of recently deceased fetuses, infants, and adults were dissected. The dissection procedure was first digitized, and then the dimensions were measured with Osiris software. Measurements of each vessel's length and external diameters were used to identify and classify morphological variations in the cerebral arterial circle. The most commonly observed anatomical variations were uni- and bilateral hypoplasia of the posterior communicating artery. This study demonstrates that public domain software can be used to measure and classify cerebral arterial circle vessels. This method could be extended to examine other anatomical regions or to study other animals. Additionally, knowledge of variations within the circle could be applied clinically to enhance diagnostic and treatment specificity.

  18. Developing a personal computer-based data visualization system using public domain software

    Science.gov (United States)

    Chen, Philip C.

    1999-03-01

    The current research will investigate the possibility of developing a computing-visualization system using a public domain software system built on a personal computer. Visualization Toolkit (VTK) is available on UNIX and PC platforms. VTK uses C++ to build an executable. It has abundant programming classes/objects that are contained in the system library. Users can also develop their own classes/objects in addition to those existing in the class library. Users can develop applications with any of the C++, Tcl/Tk, and JAVA environments. The present research will show how a data visualization system can be developed with VTK running on a personal computer. The topics will include: execution efficiency; visual object quality; availability of the user interface design; and exploring the feasibility of the VTK-based World Wide Web data visualization system. The present research will feature a case study showing how to use VTK to visualize meteorological data with techniques including, iso-surface, volume rendering, vector display, and composite analysis. The study also shows how the VTK outline, axes, and two-dimensional annotation text and title are enhancing the data presentation. The present research will also demonstrate how VTK works in an internet environment while accessing an executable with a JAVA application programing in a webpage.

  19. On recovering distributed IP information from inductive source time domain electromagnetic data

    Science.gov (United States)

    Kang, Seogi; Oldenburg, Douglas W.

    2016-10-01

    We develop a procedure to invert time domain induced polarization (IP) data for inductive sources. Our approach is based upon the inversion methodology in conventional electrical IP (EIP), which uses a sensitivity function that is independent of time. However, significant modifications are required for inductive source IP (ISIP) because electric fields in the ground do not achieve a steady state. The time-history for these fields needs to be evaluated and then used to define approximate IP currents. The resultant data, either a magnetic field or its derivative, are evaluated through the Biot-Savart law. This forms the desired linear relationship between data and pseudo-chargeability. Our inversion procedure has three steps: (1) Obtain a 3-D background conductivity model. We advocate, where possible, that this be obtained by inverting early-time data that do not suffer significantly from IP effects. (2) Decouple IP responses embedded in the observations by forward modelling the TEM data due to a background conductivity and subtracting these from the observations. (3) Use the linearized sensitivity function to invert data at each time channel and recover pseudo-chargeability. Post-interpretation of the recovered pseudo-chargeabilities at multiple times allows recovery of intrinsic Cole-Cole parameters such as time constant and chargeability. The procedure is applicable to all inductive source survey geometries but we focus upon airborne time domain EM (ATEM) data with a coincident-loop configuration because of the distinctive negative IP signal that is observed over a chargeable body. Several assumptions are adopted to generate our linearized modelling but we systematically test the capability and accuracy of the linearization for ISIP responses arising from different conductivity structures. On test examples we show: (1) our decoupling procedure enhances the ability to extract information about existence and location of chargeable targets directly from the data maps

  20. On recovering distributed IP information from inductive source time domain electromagnetic data

    Science.gov (United States)

    Kang, Seogi; Oldenburg, Douglas W.

    2016-07-01

    We develop a procedure to invert time domain induced polarization (IP) data for inductive sources. Our approach is based upon the inversion methodology in conventional electrical IP (EIP), which uses a sensitivity function that is independent of time. However, significant modifications are required for inductive source IP (ISIP) because electric fields in the ground do not achieve a steady state. The time-history for these fields needs to be evaluated and then used to define approximate IP currents. The resultant data, either a magnetic field or its derivative, are evaluated through the Biot-Savart law. This forms the desired linear relationship between data and pseudo-chargeability. Our inversion procedure has three steps: 1) Obtain a 3D background conductivity model. We advocate, where possible, that this be obtained by inverting early-time data that do not suffer significantly from IP effects. 2) Decouple IP responses embedded in the observations by forward modelling the TEM data due to a background conductivity and subtracting these from the observations. 3) Use the linearized sensitivity function to invert data at each time channel and recover pseudo-chargeability. Post-interpretation of the recovered pseudo-chargeabilities at multiple times allows recovery of intrinsic Cole-Cole parameters such as time constant and chargeability. The procedure is applicable to all inductive source survey geometries but we focus upon airborne time domain EM (ATEM) data with a coincident-loop configuration because of the distinctive negative IP signal that is observed over a chargeable body. Several assumptions are adopted to generate our linearized modelling but we systematically test the capability and accuracy of the linearization for ISIP responses arising from different conductivity structures. On test examples we show: (a) our decoupling procedure enhances the ability to extract information about existence and location of chargeable targets directly from the data maps; (b

  1. The public understanding of nanotechnology in the food domain: the hidden role of views on science, technology, and nature.

    Science.gov (United States)

    Vandermoere, Frederic; Blanchemanche, Sandrine; Bieberstein, Andrea; Marette, Stephan; Roosen, Jutta

    2011-03-01

    In spite of great expectations about the potential of nanotechnology, this study shows that people are rather ambiguous and pessimistic about nanotechnology applications in the food domain. Our findings are drawn from a survey of public perceptions about nanotechnology food and nanotechnology food packaging (N = 752). Multinomial logistic regression analyses further reveal that knowledge about food risks and nanotechnology significantly influences people's views about nanotechnology food packaging. However, knowledge variables were unrelated to support for nanofood, suggesting that an increase in people's knowledge might not be sufficient to bridge the gap between the excitement some business leaders in the food sector have and the restraint of the public. Additionally, opposition to nanofood was not related to the use of heuristics but to trust in governmental agencies. Furthermore, the results indicate that public perceptions of nanoscience in the food domain significantly relate to views on science, technology, and nature.

  2. A WEIGHTED GENERAL DISCRETE FOURIER TRANSFORM FOR THE FREQUENCY-DOMAIN BLIND SOURCE SEPARATION OF CONVOLUTIVE MIXTURES

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    This letter deals with the frequency domain Blind Source Separation of Convolutive Mixtures(CMBSS).From the frequency representation of the"overlap and save",a Weighted General Discrete Fourier Transform (WGDFT) is derived to replace the traditional Discrete Fourier Transform (DFT).The mixing matrix on each frequency bin could be estimated more precisely from WGDFT coefficients than from DFT coefficients,which improves separation performance.Simulation results verify the validity of WGDFT for frequency domain blind source separation of convolutive mixtures.

  3. private placements as sources of long term funds for publicly quoted ...

    African Journals Online (AJOL)

    USER

    Nigerian capital market by publicly quoted companies. These practices previously .... (proportion of profit that is not spent). External sources of ... security does not benefit from access to the Stock Exchange trading market. Also they tend to be ...

  4. Swept source/Fourier domain polarization sensitive optical coherence tomography with a passive polarization delay unit.

    Science.gov (United States)

    Baumann, Bernhard; Choi, WooJhon; Potsaid, Benjamin; Huang, David; Duker, Jay S; Fujimoto, James G

    2012-04-23

    Polarization sensitive optical coherence tomography (PS-OCT) is a functional imaging method that provides additional contrast using the light polarizing properties of a sample. This manuscript describes PS-OCT based on ultrahigh speed swept source / Fourier domain OCT operating at 1050 nm at 100 kHz axial scan rates using single mode fiber optics and a multiplexing approach. Unlike previously reported PS-OCT multiplexing schemes, the method uses a passive polarization delay unit and does not require active polarization modulating devices. This advance decreases system cost and avoids complex synchronization requirements. The polarization delay unit was implemented in the sample beam path in order to simultaneously illuminate the sample with two different polarization states. The orthogonal polarization components for the depth-multiplexed signals from the two input states were detected using dual balanced detection. PS-OCT images were computed using Jones calculus. 3D PS-OCT imaging was performed in the human and rat retina. In addition to standard OCT images, PS-OCT images were generated using contrast form birefringence and depolarization. Enhanced tissue discrimination as well as quantitative measurements of sample properties was demonstrated using the additional contrast and information contained in the PS-OCT images.

  5. Evolution of Industry Knowledge in the Public Domain: Prior Art Searching for Software Patents

    Directory of Open Access Journals (Sweden)

    Jinseok Park

    2005-03-01

    Full Text Available Searching prior art is a key part of the patent application and examination processes. A comprehensive prior art search gives the inventor ideas as to how he can improve or circumvent existing technology by providing up to date knowledge on the state of the art. It also enables the patent applicant to minimise the likelihood of an objection from the patent office. This article explores the characteristics of prior art associated with software patents, dealing with difficulties in searching prior art due to the lack of resources, and considers public contribution to the formation of prior art databases. It addresses the evolution of electronic prior art in line with technological development, and discusses laws and practices in the EPO, USPTO, and the JPO in relation to the validity of prior art resources on the Internet. This article also investigates the main features of searching sources and tools in the three patent offices as well as non-patent literature databases. Based on the analysis of various searching databases, it provides some strategies of efficient prior art searching that should be considered for software-related inventions.

  6. Parametrization of acoustic boundary absorption and dispersion properties in time-domain source/receiver reflection measurement

    NARCIS (Netherlands)

    De Hoop, A.T.; Lam, C.H.; Kooij, B.J.

    2005-01-01

    Closed-form analytic time-domain expressions are obtained for the acoustic pressure associated with the reflection of a monopole point-source excited impulsive acoustic wave by a planar boundary with absorptive and dispersive properties. The acoustic properties of the boundary are modeled as a local

  7. Parametrization of acoustic boundary absorption and dispersion properties in time-domain source/receiver reflection measurement

    NARCIS (Netherlands)

    De Hoop, A.T.; Lam, C.H.; Kooij, B.J.

    2005-01-01

    Closed-form analytic time-domain expressions are obtained for the acoustic pressure associated with the reflection of a monopole point-source excited impulsive acoustic wave by a planar boundary with absorptive and dispersive properties. The acoustic properties of the boundary are modeled as a local

  8. Texas Public School Nutrition Policy Changes Sources of Middle School Student Food Choices

    Science.gov (United States)

    Little is known about the impact of school food policy changes on student intake. This study assessed changes in student intake by food source after the 2004 Texas Public School Nutrition Policy was implemented. Anonymous lunch food records, with food source identified, were collected from students ...

  9. 78 FR 21008 - Publication of Inflation Adjustment Factor, Nonconventional Source Fuel Credit, and Reference...

    Science.gov (United States)

    2013-04-08

    .... 45K). The inflation adjustment factor and reference price are used to determine the credit allowable.... DATES: The 2012 inflation adjustment factor, nonconventional source fuel credit, and reference price... Internal Revenue Service Publication of Inflation Adjustment Factor, Nonconventional Source Fuel Credit...

  10. 76 FR 19524 - Publication of Inflation Adjustment Factor, Nonconventional Source Fuel Credit, and Reference...

    Science.gov (United States)

    2011-04-07

    .... 45K). The inflation adjustment factor and reference price are used to determine the credit allowable.... DATES: The 2010 inflation adjustment factor, nonconventional source fuel credit, and reference price... Internal Revenue Service Publication of Inflation Adjustment Factor, Nonconventional Source Fuel Credit...

  11. A NEW PUBLIC HEALTH ISSUE: CONTAMINATION WITH ARSENIC OF PRIVATE WATER SOURCES

    Directory of Open Access Journals (Sweden)

    ANCA ELENA GURZAU

    2012-03-01

    Full Text Available A new public health issue: contamination with arsenic of private water sources. Known since the early ‘40s, the natural contamination with arsenic of depth water in Bihor and Arad areas continues to incite interest, especially since the rural localities still use depth water as the main source of drinking water. Arsenic concentrations measured in the water sources in the area range between 0-176 μg/L, and it is estimated that over 45,000 people are exposed via drinking water to arsenic concentrations above 10 μg/L. The present study proposed the measurement of arsenic concentrations from old public sources and individual private water sources from recent wells located in five localities in Arad County, samples being collected during 2010-2011. The results showed that public water sources declared or not non-potable contain arsenic above the maximum allowable concentration of 10 μg/L. Individual water sources recently drilled as an alternative for the population to the lack of access to safe water from public water systems, presented high concentrations of arsenic in most cases, even higher than the concentrations of the public sources declared by authorities as non-potable. In the absence of informing and counseling the population regarding the natural uneven distribution of arsenic in the depth water and its potential carcinogenicity, human exposure continues and it is even more intense. The significance of the problem in terms of public health becomes even more important as for the private water sources quality is not monitored by the authorities according to law, water analysis being performed on request and for a fee.

  12. Identifying public health policymakers' sources of information: comparing survey and network analyses.

    Science.gov (United States)

    Oliver, Kathryn A; de Vocht, Frank; Money, Annemarie; Everett, Martin

    2017-05-01

    Research suggests that policymakers often use personal contacts to find information and advice. However, the main sources of information for public health policymakers are not known. This study aims to describe policymakers' sources of information. A questionnaire survey of public health policymakers across Greater Manchester (GM) was carried out (response rate 48%). All policy actors above Director level involved in public health policy (finding, analyzing or producing information, producing or implementing policy) in GM were included in the sampling frame. Respondents were provided with a list of sources of information and asked which they used (categorical data) and to name specific individuals who acted as sources of information (network data). Data were analyzed using frequencies and network analysis. The most frequently chosen sources of information from the categorical data were NICE, government websites and Directors of Public Health. However, the network data showed that the main sources of information in the network were actually mid-level managers in the NHS, who had no direct expertise in public health. Academics and researchers did not feature in the network. Both survey and network analyses provide useful insights into how policymakers access information. Network analysis offers practical and theoretical contributions to the evidence-based policy debate. Identifying individuals who act as key users and producers of evidence allows academics to target actors likely to use and disseminate their work.

  13. 版权法上的公共领域研究%On public domain in copyright law

    Institute of Scientific and Technical Information of China (English)

    黄汇

    2009-01-01

    Public domain is a core rule of copyright law, under which various creative materials are available for an author to use without charge or liability for infringement, hence ensuring the effective implementation of copyright law.Public domain is characterized by openness, public ownership, irrevocability and formality. Based on the premise that the author's work will not be interfered, public domain ultimately aims at the enlargement of its own universe and prosperity of the culture of human society. Its introduction into copyright law satisfies both historical and logical demands. Without its acknowledgement,copyright cannot be justified. In that sense, public domain and copyright can be deemed as twins. Public domain is not only an existing institution, but also an ideological tendency or a methodology. It has evaluative and inspective values towards copyright. It is an important precondition of copy-rights, and what is more, an important measure for controlling the expansion and realizing the purpose of copyright.%公共领域是版权法的核心,它是保证作者有效运用各种创作素材从而使版权的其余部分得以良好运转的工具.公共领域具有开放性、有主性、不可撤销性和程序性等特征,它以保证作者的创作为前提,却最终以自身的不断扩大和人类社会的文化繁衍为依归.公共领域在版权法上的生成既是历史的,更是逻辑的.没有公共领域的被承认,也就没有版权的正当性可言,因此公共领域和版权实际上一同诞生.公共领域不仅是一种制度存在物,它更是一种思想倾向和方法论,公共领域对版权具有评价和检视功能,它既是版权运行的重要前提,又是控制版权扩张和实现版权目的的重要手段.

  14. Design and implementation of a space domain spherical microphone array with application to source localization and separation.

    Science.gov (United States)

    Bai, Mingsian R; Yao, Yueh Hua; Lai, Chang-Sheng; Lo, Yi-Yang

    2016-03-01

    In this paper, four delay-and-sum (DAS) beamformers formulated in the modal domain and the space domain for open and solid spherical apertures are examined through numerical simulations. The resulting beampatterns reveal that the mainlobe of the solid spherical DAS array is only slightly narrower than that of the open array, whereas the sidelobes of the modal domain array are more significant than those of the space domain array due to the discrete approximation of continuous spherical Fourier transformation. To verify the theory experimentally, a three-dimensionally printed spherical array on which 32 micro-electro-mechanical system microphones are mounted is utilized for localization and separation of sound sources. To overcome the basis mismatch problem in signal separation, source localization is first carried out using minimum variance distortionless response beamformer. Next, Tikhonov regularization (TIKR) and compressive sensing (CS) are employed to extract the source signal amplitudes. Simulations and experiments are conducted to validate the proposed spherical array system. Objective perceptual evaluation of speech quality test and a subjective listening test are undertaken in performance evaluation. The experimental results demonstrate better separation quality achieved by the CS approach than by the TIKR approach at the cost of computational complexity.

  15. Stacking fault domains as sources of a-type threading dislocations in III-nitride heterostructures

    Science.gov (United States)

    Smalc-Koziorowska, J.; Bazioti, C.; Albrecht, M.; Dimitrakopulos, G. P.

    2016-02-01

    A mechanism for the nucleation of a-type threading dislocation half-loops from basal stacking faults in wurtzite III-nitride heterostructures is presented. Transmission electron microscopy observations, in conjunction with topological and strain analysis, show that there are two possible configurations of closed domains comprising basal stacking faults of I1 type. It is shown that the lattice dislocation may emanate when the sphalerite structural units of the stacking faults in the closed domain are oriented in a parallel manner. The closed domain configurations do not introduce any shift on the basal planes, resulting in zero defect content along the growth direction. The stacking fault domains are hexagonal, with sides along the ⟨ 10 1 ¯ 0 ⟩ directions, and the threading dislocation half loops nucleate at the line nodes. The mechanism was found to be operational in multiple III-nitride systems.

  16. Expert knowledge sourcing for public health surveillance: national tsetse mapping in Uganda.

    Science.gov (United States)

    Berrang-Ford, Lea; Garton, Kelly

    2013-08-01

    In much of sub-Saharan Africa, availability of standardized and reliable public health data is poor or negligible. Despite continued calls for the prioritization of improved health datasets in poor regions, public health surveillance remains a significant global health challenge. Alternate approaches to surveillance and collection of public health data have thus garnered increasing interest, though there remains relatively limited research evaluating these approaches for public health. Herein, we present a case study applying and evaluating the use of expert knowledge sources for public health dataset development, using the case of vector distributions of Human African Trypanosomiasis (HAT) in Uganda. Specific objectives include: 1) Review the use of expert knowledge sourcing methods for public health surveillance, 2) Review current knowledge on tsetse vector distributions of public health importance in Uganda and the methods used for tsetse mapping in Africa; 3) Quantify confidence of the presence or absence of tsetse flies in Uganda based on expert informant reports, and 4) Assess the reliability and potential utility of expert knowledge sourcing as an alternative or complimentary method for public health surveillance in general and tsetse mapping in particular. Information on tsetse presence or absence, and associated confidence, was collected through interviews with District Entomologist and Veterinary Officers to develop a database of tsetse distributions for 952 sub-counties in Uganda. Results show high consistency with existing maps, indicating potential reliability of modeling approaches, though failing to provide evidence for successful tsetse control in past decades. Expert-sourcing methods provide a novel, low-cost and rapid complimentary approach for triangulating data from prediction modeling where field-based validation is not feasible. Data quality is dependent, however, on the level of expertise and documentation to support confidence levels for

  17. Domain of the Gods: Do traditional beliefs hinder public acceptance of the human role in climate change?

    Science.gov (United States)

    Donner, S.

    2008-12-01

    Public acceptance of new scientific discoveries like natural selection, plate tectonics, or the human role in climate change naturally lags behind the pace of the discoveries. In the case of climate change, unease or outright rejection of the scientific evidence for the role of human activity in climate change has been a hindrance to mitigation and adaptation efforts. This skepticism is normally attributed to everything from the quality of science education, to disinformation campaigns by representatives of the coal and gas industry, to individual resistance to behavioral change, to the nature of the modern information culture. This skepticism of scientific evidence for climate change, though often inspired by politics, economics and the particular dynamics of climate change, may actually be rooted in ancient beliefs that the climate is beyond the influence of humans. In this presentation, I will outline how the notion that humans control or influence the weather runs contrary to thousands of years of belief in a separation between the earth - the domain of man - and sky - the domain of the gods. Evidence from religious history, traditional villages in the Pacific (Fjij and Kiribati) and from public discourse in North America all indicates that the millennia-old belief in an earth-sky separation hinders people's acceptance that human activity is affecting the climate. The human role in climate change therefore represents a substantial paradigm shift, similar to the role of natural selection in human evolution. These deep roots of climate change skepticism must be factored into public climate change education efforts.

  18. The Maritime Public Domain - concept and implementation in diferent national legal systems.

    Directory of Open Access Journals (Sweden)

    Marco Gameiro Antunes

    2014-05-01

    The paper will also describe how the ownership (public vs. private of coastal and estuarine margins is seen in some legal systems, considering the contribution of MPD to the protection of estuarine water and to the biodiversity resources.

  19. 32 CFR 705.35 - Armed Forces participation in events in the public domain.

    Science.gov (United States)

    2010-07-01

    ... Department of Defense to ensure compliance with public law, to assure equitable distribution of resources to... primary attraction. (4) Armed Forces participation is authorized in a fund-raising event only when the...

  20. Recommendations for a uniform assessment of publication bias related to funding source.

    Science.gov (United States)

    van Lent, Marlies; Overbeke, John; Out, Henk J

    2013-09-30

    Numerous studies on publication bias in clinical drug research have been undertaken, particularly on the association between sponsorship and favourable outcomes. However, no standardized methodology for the classification of outcomes and sponsorship has been described. Dissimilarities and ambiguities in this assessment impede the ability to compare and summarize results of studies on publication bias. To guide authors undertaking such studies, this paper provides recommendations for a uniform assessment of publication bias related to funding source. As part of ongoing research into publication bias, 472 manuscripts on randomised controlled trials (RCTs) with drugs, submitted to eight medical journals from January 2010 through April 2012, were reviewed. Information on trial results and sponsorship was extracted from manuscripts. During the start of this evaluation, several problems related to the classification of outcomes, inclusion of post-hoc analyses and follow-up studies of RCTs in the study sample, and assessment of the role of the funding source were encountered. A comprehensive list of recommendations addressing these problems was composed. To assess internal validity, reliability and usability of these recommendations were tested through evaluation of manuscripts submitted to journals included in our study. The proposed recommendations represent a first step towards a uniform method of classifying trial outcomes and sponsorship. This is essential to draw valid conclusions on the role of the funding source in publication bias and will ensure consistency across future studies.

  1. Accessing and Using Public Educational Data Sources for School and Leadership Research. Implications from UCEA

    Science.gov (United States)

    Baker, Bruce

    2008-01-01

    Much educational policy research can be conducted with existing data sources, either created for research purposes or for managing and maintaining information on public schooling systems. These often under-used resources offer rich research opportunities on the relationship between teacher and principal careers, school and district differences and…

  2. Sources of satisfaction and dissatisfaction among specialists within the public and private health sectors

    DEFF Research Database (Denmark)

    Ashton, Toni; Brown, Paul M.; Sopina, Elizaveta (Liza)

    2013-01-01

    Aim As in many countries, medical and surgical specialists in New Zealand have the opportunity of working in the public sector, the private sector or both. This study aimed to explore the level and sources of satisfaction and dissatisfaction of specialists in New Zealand with working in the two s...

  3. Source of lead pollution, its influence on public health and the countermeasures

    Directory of Open Access Journals (Sweden)

    Rui Zhang

    2015-07-01

    Full Text Available Lead is a well-known toxic heavy metal, which can have serious public health hazards at very low levels, especially for young children. This report summarized the background information on lead as well as its applications, pollution sources, poisoning pathways, biomarkers of exposure and effect, toxicities, poisoning mechanisms, preventive actions, decontamination strategies, and detoxification methods. 

  4. Spatial and frequency domain ring source models for the single muscle fiber action potential

    DEFF Research Database (Denmark)

    Henneberg, Kaj-åge; R., Plonsey

    1994-01-01

    In the paper, single-fibre models for the extracellular action potential are developed that will allow the potential to the evaluated at an arbitrary field point in the extracellular space. Fourier-domain models are restricted in that they evaluate potentials at equidistant points along a line...

  5. Collection, Curation, Citation at Source: Publication@Source 10 Years On

    Directory of Open Access Journals (Sweden)

    Jeremy Frey

    2015-06-01

    Full Text Available The Southampton chemical information group had its genesis in 2001, when we began an e-Science pilot project to investigate structure-property mapping, combinatorial chemistry, and the Grid. CombeChem instigated a range of activities that have since been underway for more than ten years, in many ways matching the expansion of interest in using the Web as a vehicle for collection, curation, dissemination, reuse, and exploitation of scientific data and information. Chemistry has frequently provided the exemplar case studies, notably for the series of projects – funded by Jisc and EPSRC – that investigated the issues associated with the long-term preservation of data to support the scholarly knowledge cycle, such as the eBank UK project. Rapid developments in Internet access and mobile technology have significantly influenced the way researchers view connectivity, data standards, and the increasing importance and power of semantics and the Semantic Web. These technical advances interact strongly with the social dimension and have led to a reconsideration of the responsibilities of researchers for the quality of their research and for satisfying the requirements of modern stakeholders. Such obligations have given rise to discussions about Open Access and Open Data, creating a range of alternatives that are now technically feasible but need to be socially acceptable. Business plans are changing too, but in a strange contradiction, desire can run ahead of what is possible, sensible, and affordable, while lagging behind in imagination of what would be technically possible and potentially game-changing! Taking the chemical sciences as our example and focusing on the curation of research data, we explore from our perspective, ten years back and ten years forward, how far we have been able to re-imagine the data/information value pathway from bench to publication. We assess not only the major advances and changes that have been achieved, but also

  6. Citing National Publications as a metrics for localization of Science: A Study on Scholar Journals of Social Science Domain in Iran from 2002 to 2010

    Directory of Open Access Journals (Sweden)

    Mohammad Tavakolizadeh-Ravari

    2015-02-01

    Conclusion: Based on this metric, the tendency toward the use of national publications in the social science domain is constant despite the number of scientific productions is growing in Iran. This means that the Iranian social science domain not only doesn’t tend to the science localization but its use of foreign science is growing in the span of time as well.

  7. Sources of satisfaction and dissatisfaction among specialists within the public and private health sectors

    DEFF Research Database (Denmark)

    Ashton, Toni; Brown, Paul M.; Sopina, Elizaveta (Liza)

    2013-01-01

    and professional development, key sources of dissatisfaction are workload pressures, mentally demanding work and managerial interference. In the private sector specialists value the opportunity to work independently and apply their own ideas in the workplace. Conclusion Sources of job satisfaction......Aim As in many countries, medical and surgical specialists in New Zealand have the opportunity of working in the public sector, the private sector or both. This study aimed to explore the level and sources of satisfaction and dissatisfaction of specialists in New Zealand with working in the two...... of satisfaction and 9 sources of dissatisfaction according to a 5-point Likert scale. Means and standard deviations were calculated for the total sample, and for procedural and non-procedural specialties. Differences between the means of each source of satisfaction and dissatisfaction were also calculated...

  8. Changing Perceptions of Homesteading as a Policy of Public Domain Disposal

    Science.gov (United States)

    Edwards, Richard

    2009-01-01

    The inspiring story of homesteaders claiming free land and realizing their dreams became one of the enduring narratives of American history. But scholars who have studied homesteading have often been much more ambivalent, even harshly negative, about how successful it was in practice. While the public often views our history differently from…

  9. Quality of Source Water from Public-Supply Wells in the United States, 1993-2007

    Science.gov (United States)

    Toccalino, Patricia L.; Norman, Julia E.; Hitt, Kerie J.

    2010-01-01

    More than one-third of the Nation's population receives their drinking water from public water systems that use groundwater as their source. The U.S. Geological Survey (USGS) sampled untreated source water from 932 public-supply wells, hereafter referred to as public wells, as part of multiple groundwater assessments conducted across the Nation during 1993-2007. The objectives of this study were to evaluate (1) contaminant occurrence in source water from public wells and the potential significance of contaminant concentrations to human health, (2) national and regional distributions of groundwater quality, and (3) the occurrence and characteristics of contaminant mixtures. Treated finished water was not sampled. The 932 public wells are widely distributed nationally and include wells in selected parts of 41 states and withdraw water from parts of 30 regionally extensive aquifers used for public water supply. These wells are distributed among 629 unique public water systems-less than 1 percent of all groundwater-supplied public water systems in the United States-but the wells were randomly selected within the sampled hydrogeologic settings to represent typical aquifer conditions. Samples from the 629 systems represent source water used by one-quarter of the U.S. population served by groundwater-supplied public water systems, or about 9 percent of the entire U.S. population in 2008. One groundwater sample was collected prior to treatment or blending from each of the 932 public wells and analyzed for as many as six water-quality properties and 215 contaminants. Consistent with the terminology used in the Safe Drinking Water Act (SDWA), all constituents analyzed in water samples in this study are referred to as 'contaminants'. More contaminant groups were assessed in this study than in any previous national study of public wells and included major ions, nutrients, radionuclides, trace elements, pesticide compounds, volatile organic compounds (VOCs), and fecal

  10. Source-independent time-domain waveform inversion using convolved wavefields: Application to the encoded multisource waveform inversion

    KAUST Repository

    Choi, Yun Seok

    2011-09-01

    Full waveform inversion requires a good estimation of the source wavelet to improve our chances of a successful inversion. This is especially true for an encoded multisource time-domain implementation, which, conventionally, requires separate-source modeling, as well as the Fourier transform of wavefields. As an alternative, we have developed the source-independent time-domain waveform inversion using convolved wavefields. Specifically, the misfit function consists of the convolution of the observed wavefields with a reference trace from the modeled wavefield, plus the convolution of the modeled wavefields with a reference trace from the observed wavefield. In this case, the source wavelet of the observed and the modeled wavefields are equally convolved with both terms in the misfit function, and thus, the effects of the source wavelets are eliminated. Furthermore, because the modeled wavefields play a role of low-pass filtering, the observed wavefields in the misfit function, the frequency-selection strategy from low to high can be easily adopted just by setting the maximum frequency of the source wavelet of the modeled wavefields; and thus, no filtering is required. The gradient of the misfit function is computed by back-propagating the new residual seismograms and applying the imaging condition, similar to reverse-time migration. In the synthetic data evaluations, our waveform inversion yields inverted models that are close to the true model, but demonstrates, as predicted, some limitations when random noise is added to the synthetic data. We also realized that an average of traces is a better choice for the reference trace than using a single trace. © 2011 Society of Exploration Geophysicists.

  11. Capturing domain knowledge from multiple sources: the rare bone disorders use case

    OpenAIRE

    Groza, Tudor; Tudorache, Tania; Peter N Robinson; Zankl, Andreas

    2015-01-01

    Background Lately, ontologies have become a fundamental building block in the process of formalising and storing complex biomedical information. The community-driven ontology curation process, however, ignores the possibility of multiple communities building, in parallel, conceptualisations of the same domain, and thus providing slightly different perspectives on the same knowledge. The individual nature of this effort leads to the need of a mechanism to enable us to create an overarching and...

  12. Sources and sinks separating domains of left- and right-traveling waves Experiment versus amplitude equations

    CERN Document Server

    Alvarez, R; Van Saarloos, W; Alvarez, Roberto; Hecke, Martin van; Saarloos, Wim van

    1996-01-01

    In many pattern forming systems that exhibit traveling waves, sources and sinks occur which separate patches of oppositely traveling waves. We show that simple qualitative features of their dynamics can be compared to predictions from coupled amplitude equations. In heated wire convection experiments, we find a discrepancy between the observed multiplicity of sources and theoretical predictions. The expression for the observed motion of sinks is incompatible with any amplitude equation description.

  13. Sources and sinks separating domains of left- and right-traveling waves: experiment versus amplitude equations

    OpenAIRE

    Saarloos, van, W.; Alvarez, R.; Hecke, van, M

    1997-01-01

    In many pattern forming systems that exhibit traveling waves, sources and sinks occur which separate patches of oppositely traveling waves. We show that simple qualitative features of their dynamics can be compared to predictions from coupled amplitude equations. In heated wire convection experiments, we find a discrepancy between the observed multiplicity of sources and theoretical predictions. The expression for the observed motion of sinks is incompatible with any amplitude equation descri...

  14. Crowd-sourcing delivery system innovation: A public-private solution.

    Science.gov (United States)

    Agrawal, Shantanu; Chen, Christopher; Tanio, Craig P

    2015-03-01

    We propose the establishment of a public-private approach which creates and maintains a "delivery systems innovations knowledge management system" to define, describe, and assess novel delivery approaches. The public sector could provide the foundational technology, resources and convening power for this innovations database. The private sector would contribute practical innovations that could guide annual strategic planning and implementation. A crowd-sourced effort would jump start delivery system reform. We believe that providing a comprehensive knowledge resource will not stifle competition or private sector opportunities but rather augment and speed the application of effective innovation. Copyright © 2014 Elsevier Inc. All rights reserved.

  15. 41 CFR 102-75.100 - When an agency holds land withdrawn or reserved from the public domain and determines that it no...

    Science.gov (United States)

    2010-07-01

    ... land withdrawn or reserved from the public domain and determines that it no longer needs this land, what must it do? 102-75.100 Section 102-75.100 Public Contracts and Property Management Federal... it no longer needs this land, what must it do? An agency holding unneeded land withdrawn or...

  16. High-speed polarization-sensitive OCT at 1060 nm using a Fourier domain mode-locked swept source

    DEFF Research Database (Denmark)

    Marschall, Sebastian; Torzicky, Teresa; Klein, Thomas;

    2012-01-01

    , polarization-maintaining or depolarizing areas within the sample. This information can be used to distinguish retinal layers and structures with different polarization properties. High imaging speed is crucial for imaging ocular structures in vivo in order to minimize motion artifacts while acquiring...... sufficiently large datasets. Here, we demonstrate PS-OCT imaging at 350 kHz A-scan rate using a two-channel PS-OCT system in conjunction with a Fourier domain mode-locked laser. The light source spectrum spans up to 100nm around the water absorption minimum at 1060 nm. By modulating the laser pump current, we...

  17. The Expression of Public Office in some Roman-Byzantine Legal Sources

    Directory of Open Access Journals (Sweden)

    Francisco J. Andrés-Santos

    2016-12-01

    Full Text Available This paper analyzes the methods for understanding the notion of public service in some Byzantine legal sources between the end of the 9th and the beginning of the 10th centuries. From this, it can be ascertained that the use of the word ὀφφίκιον corresponds to a mechanic translation of the legal technical term officium in Latin (transliteration, but as the Byzantine legal sources became progressively “exhellenized” the term started to disappear and be replaced by more traditional Greek words.

  18. Asthma in Urban Children: Epidemiology, Environmental Risk Factors, and the Public Health Domain.

    Science.gov (United States)

    Milligan, Ki Lee; Matsui, Elizabeth; Sharma, Hemant

    2016-04-01

    Asthma is the most commonly reported chronic condition of childhood in developed countries, with 6.5 million children affected in the USA. A disparate burden of childhood asthma is seen among socioeconomically disadvantaged youth, often concentrated in urban areas with high poverty rates. Host factors that predispose a child to asthma include atopy, male gender, parental history of asthma, and also race, ethnicity, and genetic and epigenetic susceptibilities. Environmental factors, such as improved hygiene, ambient air pollution, and early life exposures to microbes and aeroallergens, also influence the development of asthma. With greater than 90% of time spent indoors, home exposures (such as cockroach, rodent, and indoor air pollution) are highly relevant for urban asthma. Morbidity reduction may require focused public health initiatives for environmental intervention in high priority risk groups and the addition of immune modulatory agents in children with poorly controlled disease.

  19. A high-order public domain code for direct numerical simulations of turbulent combustion

    CERN Document Server

    Babkovskaia, N; Brandenburg, A

    2010-01-01

    A high-order scheme for direct numerical simulations of turbulent combustion is discussed. Its implementation in the massively parallel and publicly available Pencil Code is validated with the focus on hydrogen combustion. Ignition delay times (0D) and laminar flame velocities (1D) are calculated and compared with results from the commercially available Chemkin code. The scheme is verified to be fifth order in space. Upon doubling the resolution, a 32-fold increase in the accuracy of the flame front is demonstrated. Finally, also turbulent and spherical flame front velocities are calculated and the implementation of the non-reflecting so-called Navier-Stokes Characteristic Boundary Condition is validated in all three directions.

  20. Web Mapping Architectures Based on Open Specifications and Free and Open Source Software in the Water Domain

    Science.gov (United States)

    Arias Muñoz, C.; Brovelli, M. A.; Kilsedar, C. E.; Moreno-Sanchez, R.; Oxoli, D.

    2017-09-01

    The availability of water-related data and information across different geographical and jurisdictional scales is of critical importance for the conservation and management of water resources in the 21st century. Today information assets are often found fragmented across multiple agencies that use incompatible data formats and procedures for data collection, storage, maintenance, analysis, and distribution. The growing adoption of Web mapping systems in the water domain is reducing the gap between data availability and its practical use and accessibility. Nevertheless, more attention must be given to the design and development of these systems to achieve high levels of interoperability and usability while fulfilling different end user informational needs. This paper first presents a brief overview of technologies used in the water domain, and then presents three examples of Web mapping architectures based on free and open source software (FOSS) and the use of open specifications (OS) that address different users' needs for data sharing, visualization, manipulation, scenario simulations, and map production. The purpose of the paper is to illustrate how the latest developments in OS for geospatial and water-related data collection, storage, and sharing, combined with the use of mature FOSS projects facilitate the creation of sophisticated interoperable Web-based information systems in the water domain.

  1. WEB MAPPING ARCHITECTURES BASED ON OPEN SPECIFICATIONS AND FREE AND OPEN SOURCE SOFTWARE IN THE WATER DOMAIN

    Directory of Open Access Journals (Sweden)

    C. Arias Muñoz

    2017-09-01

    Full Text Available The availability of water-related data and information across different geographical and jurisdictional scales is of critical importance for the conservation and management of water resources in the 21st century. Today information assets are often found fragmented across multiple agencies that use incompatible data formats and procedures for data collection, storage, maintenance, analysis, and distribution. The growing adoption of Web mapping systems in the water domain is reducing the gap between data availability and its practical use and accessibility. Nevertheless, more attention must be given to the design and development of these systems to achieve high levels of interoperability and usability while fulfilling different end user informational needs. This paper first presents a brief overview of technologies used in the water domain, and then presents three examples of Web mapping architectures based on free and open source software (FOSS and the use of open specifications (OS that address different users’ needs for data sharing, visualization, manipulation, scenario simulations, and map production. The purpose of the paper is to illustrate how the latest developments in OS for geospatial and water-related data collection, storage, and sharing, combined with the use of mature FOSS projects facilitate the creation of sophisticated interoperable Web-based information systems in the water domain.

  2. An exploratory study identifying where local government public health decision makers source their evidence for policy.

    Science.gov (United States)

    Stoneham, Melissa; Dodds, James

    2014-08-01

    The Western Australian (WA) Public Health Bill will replace the antiquated Health Act 1911. One of the proposed clauses of the Bill requires all WA local governments to develop a Public Health Plan. The Bill states that Public Health Plans should be based on evidence from all levels, including national and statewide priorities, community needs, local statistical evidence, and stakeholder data. This exploratory study, which targeted 533 WA local government officers, aimed to identify the sources of evidence used to generate the list of public health risks to be included in local government Public Health Plans. The top four sources identified for informing local policy were: observation of the consequences of the risks in the local community (24.5%), statewide evidence (17.6%), local evidence (17.6%) and coverage in local media (16.2%). This study confirms that both hard and soft data are used to inform policy decisions at the local level. Therefore, the challenge that this study has highlighted is in the definition or constitution of evidence. SO WHAT? Evidence is critical to the process of sound policy development. This study highlights issues associated with what actually constitutes evidence in the policy development process at the local government level. With the exception of those who work in an extremely narrow field, it is difficult for local government officers, whose role includes policymaking, to read the vast amount of information that has been published in their area of expertise. For those who are committed to the notion of evidence-based policymaking, as advocated within the WA Public Health Bill, this presents a considerable challenge.

  3. Development of mooring-anchor program in public domain for coupling with floater program for FOWTs (Floating Offshore Wind Turbines)

    Energy Technology Data Exchange (ETDEWEB)

    Kim, MooHyun [American Bureau of Shipping (ABS), Houston, TX (United States)

    2014-08-01

    This report presents the development of offshore anchor data sets which are intended to be used to develop a database that allows preliminary selection and sizing of anchors for the conceptual design of floating offshore wind turbines (FOWTs). The study is part of a project entitled “Development of Mooring-Anchor Program in Public Domain for Coupling with Floater Program for FOWTs (Floating Offshore Wind Turbines)”, under the direction of Dr. Moo-Hyun Kim at the Texas A&M University and with the sponsorship from the US Department of Energy (Contract No. DE-EE0005479, CFDA # 81.087 for DE-FOA-0000415, Topic Area 1.3: Subsurface Mooring and Anchoring Dynamics Models).

  4. A Semantic-based Clustering Method to Build Domain Ontology from Multiple Heterogeneous Knowledge Sources

    Institute of Scientific and Technical Information of China (English)

    LING Ling; HU Yu-jin; WANG Xue-lin; LI Cheng-gang

    2006-01-01

    In order to improve the efficiency of ontology construction from heterogeneous knowledge sources, a semantic-based approach is presented. The ontology will be constructed with the application of cluster technique in an incremental way.Firstly, terms will be extracted from knowledge sources and congregate a term set after pretreat-ment. Then the concept set will be built via semantic-based clustering according to semanteme of terms provided by WordNet. Next, a concept tree is constructed in terms of mapping rules between semanteme relationships and concept relationships. The semi-automatic approach can avoid non-consistence due to knowledge engineers having different understanding of the same concept and the obtained ontology is easily to be expanded.

  5. Open window: when easily identifiable genomes and traits are in the public domain.

    Directory of Open Access Journals (Sweden)

    Misha Angrist

    Full Text Available "One can't be of an enquiring and experimental nature, and still be very sensible."--Charles Fort. As the costs of personal genetic testing "self-quantification" fall, publicly accessible databases housing people's genotypic and phenotypic information are gradually increasing in number and scope. The latest entrant is openSNP, which allows participants to upload their personal genetic/genomic and self-reported phenotypic data. I believe the emergence of such open repositories of human biological data is a natural reflection of inquisitive and digitally literate people's desires to make genomic and phenotypic information more easily available to a community beyond the research establishment. Such unfettered databases hold the promise of contributing mightily to science, science education and medicine. That said, in an age of increasingly widespread governmental and corporate surveillance, we would do well to be mindful that genomic DNA is uniquely identifying. Participants in open biological databases are engaged in a real-time experiment whose outcome is unknown.

  6. An analytic, Fourier domain description of shear wave propagation in a viscoelastic medium using asymmetric Gaussian sources.

    Science.gov (United States)

    Rouze, Ned C; Palmeri, Mark L; Nightingale, Kathryn R

    2015-08-01

    Recent measurements of shear wave propagation in viscoelastic materials have been analyzed by constructing the two-dimensional Fourier transform (2D-FT) of the spatial-temporal shear wave signal and using an analysis procedure derived under the assumption the wave is described as a plane wave, or as the asymptotic form of a wave expanding radially from a cylindrically symmetric source. This study presents an exact, analytic expression for the 2D-FT description of shear wave propagation in viscoelastic materials following asymmetric Gaussian excitations and uses this expression to evaluate the bias in 2D-FT measurements obtained using the plane or cylindrical wave assumptions. A wide range of biases are observed depending on specific values of frequency, aspect ratio R of the source asymmetry, and material properties. These biases can be reduced significantly by weighting the shear wave signal in the spatial domain to correct for the geometric spreading of the shear wavefront using a factor of x(p). The optimal weighting power p is found to be near the theoretical value of 0.5 for the case of a cylindrical source with R = 1, and decreases for asymmetric sources with R > 1.

  7. Establishing the Public Sphere and Abolishing the Private Domain:The Rise of a Doctrine and Its Social Significance in the Spring and Autumn Period

    Institute of Scientific and Technical Information of China (English)

    Liu Zehua

    2006-01-01

    The dominant views regarding the concepts of "the public"(gong)and"the private"(si) took shape in the Spring and Autumn period and matured in the succeeding years of the Warring States period.This paper is an attempt to trace both the growth of the vocabulary containing "gong"and "si"and the development of philosophical views regarding issues that center on the relation between the individual and the larger social/communal/political body,of which that individual is a member;it also touches on issues related to the proper handling of public afrairs and the relation between state,sovereign,and the individual.The era is often characterized as"The Contention of the Hundred Schools of Thought,"notwithstanding it ended with but one view that is universally accepted by thinkers of diverse persuasion,namely,si is the source of all social evil and.therefore,should be condemned.This is the doctrine known as ligong miesi(abolishing si so gong may be established),which contributed to the orthodox for that era and the millennium to come.By extolling gong and condemning si.it painted a portrait of the Pair as two irreconcilable nomas or forces in social and political life;it provided a iustification for the then emerging new social arrangement and Ways of distribution of power and resources.and it also led to acute conflicts between the sovereign andthe state,the ruledandthe ruler,the stateandthe subject,as well as the public sphere and the private domain.

  8. Monitoring Urban Tree Cover Using Object-Based Image Analysis and Public Domain Remotely Sensed Data

    Directory of Open Access Journals (Sweden)

    Meghan Halabisky

    2011-10-01

    Full Text Available Urban forest ecosystems provide a range of social and ecological services, but due to the heterogeneity of these canopies their spatial extent is difficult to quantify and monitor. Traditional per-pixel classification methods have been used to map urban canopies, however, such techniques are not generally appropriate for assessing these highly variable landscapes. Landsat imagery has historically been used for per-pixel driven land use/land cover (LULC classifications, but the spatial resolution limits our ability to map small urban features. In such cases, hyperspatial resolution imagery such as aerial or satellite imagery with a resolution of 1 meter or below is preferred. Object-based image analysis (OBIA allows for use of additional variables such as texture, shape, context, and other cognitive information provided by the image analyst to segment and classify image features, and thus, improve classifications. As part of this research we created LULC classifications for a pilot study area in Seattle, WA, USA, using OBIA techniques and freely available public aerial photography. We analyzed the differences in accuracies which can be achieved with OBIA using multispectral and true-color imagery. We also compared our results to a satellite based OBIA LULC and discussed the implications of per-pixel driven vs. OBIA-driven field sampling campaigns. We demonstrated that the OBIA approach can generate good and repeatable LULC classifications suitable for tree cover assessment in urban areas. Another important finding is that spectral content appeared to be more important than spatial detail of hyperspatial data when it comes to an OBIA-driven LULC.

  9. Agreement between Gonioscopic Examination and Swept Source Fourier Domain Anterior Segment Optical Coherence Tomography Imaging

    Directory of Open Access Journals (Sweden)

    Mohammed Rigi

    2016-01-01

    Full Text Available Purpose. To evaluate interobserver, intervisit, and interinstrument agreements for gonioscopy and Fourier domain anterior segment optical coherence tomography (FD ASOCT for classifying open and narrow angle eyes. Methods. Eighty-six eyes with open or narrow anterior chamber angles were included. The superior angle was classified open or narrow by 2 of 5 glaucoma specialists using gonioscopy and imaged by FD ASOCT in the dark. The superior angle of each FD ASOCT image was graded as open or narrow by 2 masked readers. The same procedures were repeated within 6 months. Kappas for interobserver and intervisit agreements for each instrument and interinstrument agreements were calculated. Results. The mean age was 50.9 (±18.4 years. Interobserver agreements were moderate to good for both gonioscopy (0.57 and 0.69 and FD ASOCT (0.58 and 0.75. Intervisit agreements were moderate to excellent for both gonioscopy (0.53 to 0.86 and FD ASOCT (0.57 and 0.85. Interinstrument agreements were fair to good (0.34 to 0.63, with FD ASOCT classifying more angles as narrow than gonioscopy. Conclusions. Both gonioscopy and FD ASOCT examiners were internally consistent with similar interobserver and intervisit agreements for angle classification. Agreement between instruments was fair to good, with FD ASOCT classifying more angles as narrow than gonioscopy.

  10. Search Wide, Dig Deep: Literature Searching for Qualitative Research. An Analysis of the Publication Formats and Information Sources Used for Four Systematic Reviews in Public Health

    Science.gov (United States)

    Stansfield, Claire; Brunton, Ginny; Rees, Rebecca

    2014-01-01

    Background: When literature searching for systematic reviews, it is good practice to search widely across different information sources. Little is known about the contributions of different publication formats (e.g. journal article and book chapter) and sources, especially for studies of people's views. Method: Studies from four reviews spanning…

  11. Search Wide, Dig Deep: Literature Searching for Qualitative Research. An Analysis of the Publication Formats and Information Sources Used for Four Systematic Reviews in Public Health

    Science.gov (United States)

    Stansfield, Claire; Brunton, Ginny; Rees, Rebecca

    2014-01-01

    Background: When literature searching for systematic reviews, it is good practice to search widely across different information sources. Little is known about the contributions of different publication formats (e.g. journal article and book chapter) and sources, especially for studies of people's views. Method: Studies from four reviews spanning…

  12. Mapping Phenotypic Information in Heterogeneous Textual Sources to a Domain-Specific Terminological Resource.

    Science.gov (United States)

    Alnazzawi, Noha; Thompson, Paul; Ananiadou, Sophia

    2016-01-01

    Biomedical literature articles and narrative content from Electronic Health Records (EHRs) both constitute rich sources of disease-phenotype information. Phenotype concepts may be mentioned in text in multiple ways, using phrases with a variety of structures. This variability stems partly from the different backgrounds of the authors, but also from the different writing styles typically used in each text type. Since EHR narrative reports and literature articles contain different but complementary types of valuable information, combining details from each text type can help to uncover new disease-phenotype associations. However, the alternative ways in which the same concept may be mentioned in each source constitutes a barrier to the automatic integration of information. Accordingly, identification of the unique concepts represented by phrases in text can help to bridge the gap between text types. We describe our development of a novel method, PhenoNorm, which integrates a number of different similarity measures to allow automatic linking of phenotype concept mentions to known concepts in the UMLS Metathesaurus, a biomedical terminological resource. PhenoNorm was developed using the PhenoCHF corpus-a collection of literature articles and narratives in EHRs, annotated for phenotypic information relating to congestive heart failure (CHF). We evaluate the performance of PhenoNorm in linking CHF-related phenotype mentions to Metathesaurus concepts, using a newly enriched version of PhenoCHF, in which each phenotype mention has an expert-verified link to a concept in the UMLS Metathesaurus. We show that PhenoNorm outperforms a number of alternative methods applied to the same task. Furthermore, we demonstrate PhenoNorm's wider utility, by evaluating its ability to link mentions of various other types of medically-related information, occurring in texts covering wider subject areas, to concepts in different terminological resources. We show that PhenoNorm can maintain

  13. Frequency-domain spectroscopy using high-power tunable THz-wave sources: towards THz sensing and detector sensitivity calibration

    Science.gov (United States)

    Takida, Yuma; Minamide, Hiroaki

    2017-05-01

    The development of reliable, high-power, frequency-tunable terahertz (THz)-wave sources is crucial for a wide variety of applications, such as spectroscopy, imaging, and sensing. In order to generate frequency-tunable THz waves at room temperature, one of the most promising methods is a wavelength conversion in nonlinear optical crystals. Here, we present our recent results on high-power, widely-tunable, frequency-agile THz-wave sources based on nonlinear parametric processes in MgO:LiNbO3 crystals. By changing the noncollinear phase-matching condition in MgO:LiNbO3, the tunability of sub-nanosecond-pumped injection-seeded THz-wave parametric generators (is-TPGs) covers the 3.65-octave frequency range from 0.37 THz up to 4.65 THz. The monochromatic THz-wave output from is-TPGs is greater than 10 kW peak power with the linewidth of approximately 3 GHz and the stability of 1%. These is-TPG systems are reliable and promising high-power tunable THz-wave sources for frequency-domain spectroscopic measurements towards THz sensing and detector sensitivity calibration.

  14. A method and software framework for enriching private biomedical sources with data from public online repositories.

    Science.gov (United States)

    Anguita, Alberto; García-Remesal, Miguel; Graf, Norbert; Maojo, Victor

    2016-04-01

    Modern biomedical research relies on the semantic integration of heterogeneous data sources to find data correlations. Researchers access multiple datasets of disparate origin, and identify elements-e.g. genes, compounds, pathways-that lead to interesting correlations. Normally, they must refer to additional public databases in order to enrich the information about the identified entities-e.g. scientific literature, published clinical trial results, etc. While semantic integration techniques have traditionally focused on providing homogeneous access to private datasets-thus helping automate the first part of the research, and there exist different solutions for browsing public data, there is still a need for tools that facilitate merging public repositories with private datasets. This paper presents a framework that automatically locates public data of interest to the researcher and semantically integrates it with existing private datasets. The framework has been designed as an extension of traditional data integration systems, and has been validated with an existing data integration platform from a European research project by integrating a private biological dataset with data from the National Center for Biotechnology Information (NCBI).

  15. The contrast-source stress-velocity integral-equation formulation of three-dimensional time-domain elastodynamic scattering problems: A structured approach using tensor partitioning

    NARCIS (Netherlands)

    De Hoop, A.T.; Abubakar, A.; Habashy, T.M.

    2009-01-01

    The contrast-source stress-velocity integral-equation formulation of three-dimensional time-domain elastodynamic scattering problems is discussed. A novel feature of the formulation is a tensor partitioning of the relevant dynamic stress and the contrast source volume density of deformation rate. Th

  16. On the physics of frequency-domain controlled source electromagnetics in shallow water. 1: isotropic conductivity

    Science.gov (United States)

    Chave, Alan D.; Everett, Mark E.; Mattsson, Johan; Boon, James; Midgley, Jonathan

    2017-02-01

    In recent years, marine controlled source electromagnetics (CSEM) has found increasing use in hydrocarbon exploration due to its ability to detect thin resistive zones beneath the seafloor. It is the purpose of this paper to evaluate the physics of CSEM for an ocean whose electrical thickness is comparable to or much thinner than that of the overburden using the in-line configuration through examination of the elliptically polarized seafloor electric field, the time-averaged energy flow depicted by the real part of the complex Poynting vector, energy dissipation through Joule heating and the Fréchet derivatives of the seafloor field with respect to the subseafloor conductivity that is assumed to be isotropic. The deep water (ocean layer electrically much thicker than the overburden) seafloor EM response for a model containing a resistive reservoir layer has a greater amplitude and reduced phase as a function of offset compared to that for a half-space, or a stronger and faster response. For an ocean whose electrical thickness is comparable to or much smaller than that of the overburden, the electric field displays a greater amplitude and reduced phase at small offsets, shifting to a stronger amplitude and increased phase at intermediate offsets and a weaker amplitude and enhanced phase at long offsets, or a stronger and faster response that first changes to stronger and slower, and then transitions to weaker and slower. These transitions can be understood by visualizing the energy flow throughout the structure caused by the competing influences of the dipole source and guided energy flow in the reservoir layer, and the air interaction caused by coupling of the entire subseafloor resistivity structure with the sea surface. A stronger and faster response occurs when guided energy flow is dominant, while a weaker and slower response occurs when the air interaction is dominant. However, at intermediate offsets for some models, the air interaction can partially or

  17. On the Physics of Frequency Domain Controlled Source Electromagnetics in Shallow Water, 1: Isotropic Conductivity

    Science.gov (United States)

    Chave, Alan D.; Everett, Mark E.; Mattsson, Johan; Boon, James; Midgley, Jonathan

    2016-11-01

    In recent years, marine controlled source electromagnetics (CSEM) has found increasing use in hydrocarbon exploration due to its ability to detect thin resistive zones beneath the seafloor. It is the purpose of this paper to evaluate the physics of CSEM for an ocean whose electrical thickness is comparable to or much thinner than that of the overburden using the in-line configuration through examination of the elliptically-polarized seafloor electric field, the time-averaged energy flow depicted by the real part of the complex Poynting vector, energy dissipation through Joule heating and the Fréchet derivatives of the seafloor field with respect to the sub-seafloor conductivity that is assumed to be isotropic. The deep water (ocean layer electrically much thicker than the overburden) seafloor electromagnetic response for a model containing a resistive reservoir layer has a greater amplitude and reduced phase as a function of offset compared to that for a halfspace, or a stronger and faster response. For an ocean whose electrical thickness is comparable to or much smaller than that of the overburden, the electric field displays a greater amplitude and reduced phase at small offsets, shifting to a stronger amplitude and increased phase at intermediate offsets, and a weaker amplitude and enhanced phase at long offsets, or a stronger and faster response that first changes to stronger and slower, and then transitions to weaker and slower. These transitions can be understood by visualizing the energy flow throughout the structure caused by the competing influences of the dipole source and guided energy flow in the reservoir layer, and the air interaction caused by coupling of the entire sub-seafloor resistivity structure with the sea surface. A stronger and faster response occurs when guided energy flow is dominant, while a weaker and slower response occurs when the air interaction is dominant. However, at intermediate offsets for some models, the air interaction can

  18. Toward a complete dataset of drug-drug interaction information from publicly available sources.

    Science.gov (United States)

    Ayvaz, Serkan; Horn, John; Hassanzadeh, Oktie; Zhu, Qian; Stan, Johann; Tatonetti, Nicholas P; Vilar, Santiago; Brochhausen, Mathias; Samwald, Matthias; Rastegar-Mojarad, Majid; Dumontier, Michel; Boyce, Richard D

    2015-06-01

    Although potential drug-drug interactions (PDDIs) are a significant source of preventable drug-related harm, there is currently no single complete source of PDDI information. In the current study, all publically available sources of PDDI information that could be identified using a comprehensive and broad search were combined into a single dataset. The combined dataset merged fourteen different sources including 5 clinically-oriented information sources, 4 Natural Language Processing (NLP) Corpora, and 5 Bioinformatics/Pharmacovigilance information sources. As a comprehensive PDDI source, the merged dataset might benefit the pharmacovigilance text mining community by making it possible to compare the representativeness of NLP corpora for PDDI text extraction tasks, and specifying elements that can be useful for future PDDI extraction purposes. An analysis of the overlap between and across the data sources showed that there was little overlap. Even comprehensive PDDI lists such as DrugBank, KEGG, and the NDF-RT had less than 50% overlap with each other. Moreover, all of the comprehensive lists had incomplete coverage of two data sources that focus on PDDIs of interest in most clinical settings. Based on this information, we think that systems that provide access to the comprehensive lists, such as APIs into RxNorm, should be careful to inform users that the lists may be incomplete with respect to PDDIs that drug experts suggest clinicians be aware of. In spite of the low degree of overlap, several dozen cases were identified where PDDI information provided in drug product labeling might be augmented by the merged dataset. Moreover, the combined dataset was also shown to improve the performance of an existing PDDI NLP pipeline and a recently published PDDI pharmacovigilance protocol. Future work will focus on improvement of the methods for mapping between PDDI information sources, identifying methods to improve the use of the merged dataset in PDDI NLP algorithms

  19. Open source non-invasive prenatal testing platform and its performance in a public health laboratory

    DEFF Research Database (Denmark)

    Johansen, Peter; Richter, Stine R; Balslev-Harder, Marie

    2016-01-01

    : The pipeline correctly detected 27/27 trisomy 21, 4/4 trisomy 18, and 3/3 trisomy 13 fetuses. Neither false negatives nor false positives (chromosomes 13, 18, and 21) were observed in our validation dataset. Fetal sex was identified correctly in all but one triploid fetus (172/173). SeqFF showed a strong......OBJECTIVE: The objective of this study was to introduce non-invasive prenatal testing (NIPT) for fetal autosomal trisomies and gender in a Danish public health setting, using semi-conductor sequencing and published open source scripts for analysis. METHODS: Plasma-derived DNA from a total of 375...

  20. Dietary sources of omega 3 fatty acids: public health risks and benefits.

    Science.gov (United States)

    Tur, J A; Bibiloni, M M; Sureda, A; Pons, A

    2012-06-01

    Omega 3 fatty acids can be obtained from several sources, and should be added to the daily diet to enjoy a good health and to prevent many diseases. Worldwide, general population use omega-3 fatty acid supplements and enriched foods to get and maintain adequate amounts of these fatty acids. The aim of this paper was to review main scientific evidence regarding the public health risks and benefits of the dietary sources of omega-3 fatty acids. A systematic literature search was performed, and one hundred and forty-five articles were included in the results for their methodological quality. The literature described benefits and risks of algal, fish oil, plant, enriched dairy products, animal-derived food, krill oil, and seal oil omega-3 fatty acids.

  1. Crowd-sourcing archaeological research: HeritageTogether digital public archaeology in practice

    Directory of Open Access Journals (Sweden)

    Seren Griffiths

    2015-12-01

    Full Text Available Archaeologists are increasingly working with crowd-sourced digital data. Using evidence from other disciplines about the nature of crowd-sourcing in academic research, we suggest that archaeological projects using donated data can usefully be differentiated between generative projects (which rely on data collected by citizen scientists, and analytical projects (which make use of volunteers to classify, or otherwise analyse data that are provided by the project. We conclude that projects which privilege hyper-local research (such as surveying specific sites might experience tension if the audience they are appealing to are 'cyber local'. In turn, for more 'traditional' archaeological audiences (when the primary motivating interests may be the tangible, physical nature of portable material culture or the archaeological site itself, then intangible, digital simulacra may not provide an effective medium through which to undertake digital public archaeology.

  2. A simple temperature domain two-source model for estimating agricultural field surface energy fluxes from Landsat images

    Science.gov (United States)

    Yao, Yunjun; Liang, Shunlin; Yu, Jian; Chen, Jiquan; Liu, Shaomin; Lin, Yi; Fisher, Joshua B.; McVicar, Tim R.; Cheng, Jie; Jia, Kun; Zhang, Xiaotong; Xie, Xianhong; Jiang, Bo; Sun, Liang

    2017-05-01

    A simple and robust satellite-based method for estimating agricultural field to regional surface energy fluxes at a high spatial resolution is important for many applications. We developed a simple temperature domain two-source energy balance (TD-TSEB) model within a hybrid two-source model scheme by coupling "layer" and "patch" models to estimate surface heat fluxes from Landsat thematic mapper/Enhanced Thematic Mapper Plus (TM/ETM+) imagery. For estimating latent heat flux (LE) of full soil, we proposed a temperature domain residual of the energy balance equation based on a simplified framework of total aerodynamic resistances, which provides a key link between thermal satellite temperature and subsurface moisture status. Additionally, we used a modified Priestley-Taylor model for estimating LE of full vegetation. The proposed method was applied to TM/ETM+ imagery and was validated using the ground-measured data at five crop eddy-covariance tower sites in China. The results show that TD-TSEB yielded root-mean-square-error values between 24.9 (8.9) and 78.2 (21.4) W/m2 and squared correlation coefficient (R2) values between 0.60 (0.51) and 0.97 (0.90), for the estimated instantaneous (daily) surface net radiation, soil, latent, and sensible heat fluxes at all five sites. The TD-TSEB model shows good accuracy for partitioning LE into soil (LEsoil) and canopy (LEcanopy) components with an average bias of 11.1% for the estimated LEsoil/LE ratio at the Daman site. Importantly, the TD-TSEB model produced comparable accuracy but requires fewer forcing data (i.e., no wind speed and roughness length are needed) when compared with two other widely used surface energy balance models. Sensitivity analyses demonstrated that this accurate operational model provides an alternative method for mapping field surface heat fluxes with satisfactory performance.

  3. Geogenic sources of benzene in aquifers used for public supply, California

    Science.gov (United States)

    Belitz, Kenneth; Landon, Matthew K.

    2012-01-01

    Statistical evaluation of two large statewide data sets from the California State Water Board's Groundwater Ambient Monitoring and Assessment Program (1973 wells) and the California Department of Public Health (12417 wells) reveals that benzene occurs infrequently (1.7%) and at generally low concentrations (median detected concentration of 0.024 μg/L) in groundwater used for public supply in California. When detected, benzene is more often related to geogenic (45% of detections) than anthropogenic sources (27% of detections). Similar relations are evident for the sum of 17 hydrocarbons analyzed. Benzene occurs most frequently and at the highest concentrations in old, brackish, and reducing groundwater; the detection frequency was 13.0% in groundwater with tritium 1600 μS/cm, and anoxic conditions. This groundwater is typically deep (>180 m). Benzene occurs somewhat less frequently in recent, shallow, and reducing groundwater; the detection frequency was 2.6% in groundwater with tritium ≥1 pCi/L, depth <30 m, and anoxic conditions. Evidence for geogenic sources of benzene include: higher concentrations and detection frequencies with increasing well depth, groundwater age, and proximity to oil and gas fields; and higher salinity and lower chloride/iodide ratios in old groundwater with detections of benzene, consistent with interactions with oil-field brines.

  4. Open source non-invasive prenatal testing platform and its performance in a public health laboratory.

    Science.gov (United States)

    Johansen, Peter; Richter, Stine R; Balslev-Harder, Marie; Miltoft, Caroline B; Tabor, Ann; Duno, Morten; Kjaergaard, Susanne

    2016-06-01

    The objective of this study was to introduce non-invasive prenatal testing (NIPT) for fetal autosomal trisomies and gender in a Danish public health setting, using semi-conductor sequencing and published open source scripts for analysis. Plasma-derived DNA from a total of 375 pregnant women (divided into three datasets) was whole-genome sequenced on the Ion Proton™ platform and analyzed using a pipeline based on WISECONDOR for fetal autosomal aneuploidy detection and SeqFF for fetal DNA fraction estimation. We furthermore validated a fetal sex determination analysis. The pipeline correctly detected 27/27 trisomy 21, 4/4 trisomy 18, and 3/3 trisomy 13 fetuses. Neither false negatives nor false positives (chromosomes 13, 18, and 21) were observed in our validation dataset. Fetal sex was identified correctly in all but one triploid fetus (172/173). SeqFF showed a strong correlation (R(2)  = 0.72) to Y-chromosomal content of the male fetus samples. We have implemented NIPT into Danish health care using published open source scripts for autosomal aneuploidy detection and fetal DNA fraction estimation showing excellent false negative and false positive rates. SeqFF provides a good estimation of fetal DNA fraction. This coupled with an analysis of fetal sex that provides a complete NIPT workflow, which may easily be adapted for implementation in other public health laboratories. © 2016 John Wiley & Sons, Ltd. © 2016 John Wiley & Sons, Ltd.

  5. How Large Is the "Public Domain"? A Comparative Analysis of Ringer's 1961 Copyright Renewal Study and HathiTrust CRMS Data

    Science.gov (United States)

    Wilkin, John P.

    2017-01-01

    The 1961 Copyright Office study on renewals, authored by Barbara Ringer, has cast an outsized influence on discussions of the U.S. 1923-1963 public domain. As more concrete data emerge from initiatives such as the large-scale determination process in the Copyright Review Management System (CRMS) project, questions are raised about the reliability…

  6. Development of an information source for patients and the public about general practice services: an action research study.

    NARCIS (Netherlands)

    Marshall, M.; Noble, J.; Davies, H.; Waterman, H.; Walshe, K.; Sheaff, R.; Elwyn, G.

    2006-01-01

    OBJECTIVE: The publication of information about the performance of health-care providers is regarded as central to promoting greater accountability and empowering patients to exercise choice. The evidence suggests that the public is not very interested in accessing or using current sources of inform

  7. Assessment of general public exposure to LTE and RF sources present in an urban environment.

    Science.gov (United States)

    Joseph, Wout; Verloock, Leen; Goeminne, Francis; Vermeeren, Günter; Martens, Luc

    2010-10-01

    For the first time, in situ electromagnetic field exposure of the general public to fields from long term evolution (LTE) cellular base stations is assessed. Exposure contributions due to different radiofrequency (RF) sources are compared with LTE exposure at 30 locations in Stockholm, Sweden. Total exposures (0.2-2.6 V/m) satisfy the International Commission on Non-Ionizing Radiation Protection (ICNIRP) reference levels (from 28 V/m for frequency modulation (FM), up to 61 V/m for LTE) at all locations. LTE exposure levels up to 0.8 V/m were measured, and the average contribution of the LTE signal to the total RF exposure equals 4%.

  8. Evaluation of Energy Use in Public Housing in Lagos, Nigeria: Prospects for Renewable Energy Sources

    Directory of Open Access Journals (Sweden)

    Isidore Chukwunweike Ezema

    2016-02-01

    Full Text Available Even though domestic energy can be from either renewable or non-renewable sources, the former is preferred because of its role in reducing both the operational energy intensity and carbon footprint. Given the positive role renewable energy plays in the energy mix, this paper examined the pattern of operational energy use with particular reference to the renewable and non-renewable energy content in medium and high density public residential buildings in Lagos, Nigeria. A survey research method was adopted for primary data collection while data analysis was by descriptive statistics. The study found that renewable energy use in the residential units is very low. In contrast, there was high dependence of the occupants on non-renewable direct fuel combustion through the use of fossil fuel-driven privately-owned electricity generators for electricity supply as a result of the inadequate supply from the national grid. In addition to the relatively high operational energy intensity observed in the studied buildings, the findings have implications for the safety, health and wellbeing of the building occupants as well as for carbon emissions from the buildings and for overall environmental sustainability. Recommendations to increase renewable energy use in new buildings and as retrofits in existing buildings were made. Article History: Received Oct 18, 2015; Received in revised form January 14, 2016; Accepted January 30, 2016; Available online How to Cite This Article: Ezema, I.C., Olotuah, A.O., and Fagbenle, O.I, S. (2016 Evaluation of Energy Use in Public Housing in Lagos, Nigeria: Prospects for Renewable Energy Sources. Int. Journal of Renewable Energy Development, 5(1,15-24. http://dx.doi.org/10.14710/ijred.5.1.15-24 

  9. Estimating and modelling bias of the hierarchical partitioning public-domain software: implications in environmental management and conservation.

    Directory of Open Access Journals (Sweden)

    Pedro P Olea

    Full Text Available BACKGROUND: Hierarchical partitioning (HP is an analytical method of multiple regression that identifies the most likely causal factors while alleviating multicollinearity problems. Its use is increasing in ecology and conservation by its usefulness for complementing multiple regression analysis. A public-domain software "hier.part package" has been developed for running HP in R software. Its authors highlight a "minor rounding error" for hierarchies constructed from >9 variables, however potential bias by using this module has not yet been examined. Knowing this bias is pivotal because, for example, the ranking obtained in HP is being used as a criterion for establishing priorities of conservation. METHODOLOGY/PRINCIPAL FINDINGS: Using numerical simulations and two real examples, we assessed the robustness of this HP module in relation to the order the variables have in the analysis. Results indicated a considerable effect of the variable order on the amount of independent variance explained by predictors for models with >9 explanatory variables. For these models the nominal ranking of importance of the predictors changed with variable order, i.e. predictors declared important by its contribution in explaining the response variable frequently changed to be either most or less important with other variable orders. The probability of changing position of a variable was best explained by the difference in independent explanatory power between that variable and the previous one in the nominal ranking of importance. The lesser is this difference, the more likely is the change of position. CONCLUSIONS/SIGNIFICANCE: HP should be applied with caution when more than 9 explanatory variables are used to know ranking of covariate importance. The explained variance is not a useful parameter to use in models with more than 9 independent variables. The inconsistency in the results obtained by HP should be considered in future studies as well as in those

  10. Domains of quality of life: results of a three-stage Delphi consensus procedure among patients, family of patients, clinicians, scientists and the general public.

    Science.gov (United States)

    Pietersma, Suzanne; de Vries, Marieke; van den Akker-van Marle, M Elske

    2014-06-01

    Our key objective is to identify the core domains of health-related quality of life (QoL). Health-related QoL utility scales are commonly used in economic evaluations to assess the effectiveness of health-care interventions. However, health-care interventions are likely to affect QoL in a broader sense than is quantifiable with traditional scales. Therefore, measures need to go beyond these scales. Unfortunately, there is no consensus in the scientific literature on the essential domains of QoL. We conducted a three-stage online Delphi consensus procedure to identify the key domains of health-related QoL. Five stakeholder groups (i.e., patients, family of patients, clinicians, scientists and general public) were asked, on three consecutive occasions, what they perceive as the most important domains of health-related QoL. An analysis of existing (health-related) QoL and well-being measurements formed the basis of the Delphi-procedure. In total, 42 domains of QoL were judged, covering physical, mental and social aspects. All participants rated 'self-acceptance', 'self-esteem' and 'good social contacts' as essential. Strikingly, mental and social domains are perceived as more essential than physical domains across stakeholders groups. In traditionally used health-related QoL utility measures, physical domains like 'mobility' are prominently present. The Delphi-procedure shows that health-related QoL (utility) scales need to put sufficient emphasis on mental and social domains to capture aspects of QoL that are essential to people.

  11. 基于云的域名解析服务模型%Cloud sourcing domain name resolving service model

    Institute of Scientific and Technical Information of China (English)

    秦臻; 肖春静; 李乐民

    2013-01-01

      针对现行域名解析系统存在各种性能和安全上的问题(例如,查询延迟、更新延迟、易受DoS攻击等),提出了一种新型的、可增量部署的、和现行 DNS 兼容的、具有更好性能的域名解析服务模型。此服务模型基于云技术,利用云及其网络架构来发布 DNS 记录,响应用户的域名解析请求,提供域名解析服务。在此服务模型中,云的节点服务器实现了域名解析器和权威域名服务器的功能,域名的权威DNS记录被发布到各节点服务器, DNS查询结果直接由节点服务器返回给用户(现行的DNS则需要访问多级域名服务器来完成对域名解析器中未缓存的DNS 记录的解析)。理论分析和实验证明,此服务模型与现行的各种域名解析服务相比,其DNS 查询延迟、更新延迟、故障应变能力、可靠性等各方面性能都有显著提高。%The current DNS had various performance and security problems, such as query delay, update latency, vulner-able to DoS attacks etc. Focuses on those problems, a novel, incremental deployable, compatible, and more effective do-main name resolving service model was proposed. The service model was cloud sourcing, by using the cloud and its branch network worldwide to distribute DNS records, response DNS queries, and provide domain name resolved service. In this service model, the cloud edge servers function as local resolvers and authoritative nameservers, and authoritative DNS records were distributed to the edge servers, which directly responsed users’ DNS queries (if the queried record was not cached at local resolver, current DNS needed to access several nameservers in multi-level hierarchy). Compared with current domain name resolving services, the analysis and experiments prove that the service model show advantages in query latency, update latency, resiliency, and reliability etc.

  12. Occurrence of selected volatile organic compounds and soluble pesticides in Texas public water-supply source waters, 1999-2001

    Science.gov (United States)

    Mahler, Barbara June; Canova, Michael G.; Gary, Marcus O.

    2002-01-01

    During 1999?2001, the U.S. Geological Survey, in cooperation with the Texas Natural Resource Conservation Commission, collected samples of untreated water from 48 public water-supply reservoirs and 174 public water-supply wells. The samples were analyzed for volatile organic compounds (VOCs) and soluble pesticides; in addition, well samples were analyzed for nitrite plus nitrate and tritium. This fact sheet summarizes the findings of the source-water sampling and analyses. Both VOCs and pesticides were detected much more frequently in surface water than in ground water. The only constituent detected at concentrations exceeding the maximum contaminant level for drinking water was nitrate. These results will be used in the Texas Source-Water Assessment Program to evaluate the susceptibility of public water-supply source waters to contamination.

  13. Combining Public Domain and Professional Panoramic Imagery for the Accurate and Dense 3d Reconstruction of the Destroyed Bel Temple in Palmyra

    Science.gov (United States)

    Wahbeh, W.; Nebiker, S.; Fangi, G.

    2016-06-01

    This paper exploits the potential of dense multi-image 3d reconstruction of destroyed cultural heritage monuments by either using public domain touristic imagery only or by combining the public domain imagery with professional panoramic imagery. The focus of our work is placed on the reconstruction of the temple of Bel, one of the Syrian heritage monuments, which was destroyed in September 2015 by the so called "Islamic State". The great temple of Bel is considered as one of the most important religious buildings of the 1st century AD in the East with a unique design. The investigations and the reconstruction were carried out using two types of imagery. The first are freely available generic touristic photos collected from the web. The second are panoramic images captured in 2010 for documenting those monuments. In the paper we present a 3d reconstruction workflow for both types of imagery using state-of-the art dense image matching software, addressing the non-trivial challenges of combining uncalibrated public domain imagery with panoramic images with very wide base-lines. We subsequently investigate the aspects of accuracy and completeness obtainable from the public domain touristic images alone and from the combination with spherical panoramas. We furthermore discuss the challenges of co-registering the weakly connected 3d point cloud fragments resulting from the limited coverage of the touristic photos. We then describe an approach using spherical photogrammetry as a virtual topographic survey allowing the co-registration of a detailed and accurate single 3d model of the temple interior and exterior.

  14. Comparison of choroidal thickness measurements between spectral-domain OCT and swept-source OCT in normal and diseased eyes

    Directory of Open Access Journals (Sweden)

    Zafar S

    2016-11-01

    Full Text Available Sidra Zafar,1 MA Rehman Siddiqui,2,3 Rida Shahzad1 1Medical College, Aga Khan University Hospital, 2Department of Ophthalmology, Shahzad Eye Hospital, 3South City Hospital, Karachi, Pakistan Purpose: Sub-foveal choroidal thickness (SFCT is affected in many ocular diseases. The aim of this study was to compare SFCT measurements between Topcon 3D 2000 spectral-domain optical coherence tomography (SD-OCT and Topcon swept-source OCT (SS-OCT, with different laser wavelengths, in normal and diseased populations. Materials and methods: This was a prospective, cross-sectional, noninterventional study including 27 normal volunteers and 27 participants with retinal disease. OCT scans were performed sequentially and under standardized conditions using both SD-OCT and SS-OCT. The OCT scans were evaluated by two independent graders. Paired t-tests and intraclass correlation coefficients (ICCs were used to assess the statistically significant difference between SFCT measurements as measured by the two devices. Results: Mean SFCT measurements for all 54 participants were 264.9±103.1 µm using SD-OCT (range: 47–470 µm and 278.5±110.5 µm using SS-OCT (range: 56–502 µm, with an inter-device ICC of 0.850. Greater variability was noted in the diseased eyes. Inter-device ICCs were 0.870 (95% CI; 0.760–0.924 and 0.840 (95% CI; 0.654–0.930 for normal and diseased eyes, respectively. However, the difference was not statistically significant (P=0.132. Conclusion: Both machines reliably measure SFCT. Larger studies are needed to confirm these findings. Keywords: choroidal imaging, diseased, normal, SD-OCT, SS-OCT

  15. Choroidal thickness maps from spectral domain and swept source optical coherence tomography: algorithmic versus ground truth annotation.

    Science.gov (United States)

    Philip, Ana-Maria; Gerendas, Bianca S; Zhang, Li; Faatz, Henrik; Podkowinski, Dominika; Bogunovic, Hrvoje; Abramoff, Michael D; Hagmann, Michael; Leitner, Roland; Simader, Christian; Sonka, Milan; Waldstein, Sebastian M; Schmidt-Erfurth, Ursula

    2016-10-01

    The purpose of the study was to create a standardised protocol for choroidal thickness measurements and to determine whether choroidal thickness measurements made on images obtained by spectral domain optical coherence tomography (SD-OCT) and swept source (SS-) OCT from patients with healthy retina are interchangeable when performed manually or with an automatic algorithm. 36 grid cell measurements for choroidal thickness for each volumetric scan were obtained, which were measured for SD-OCT and SS-OCT with two methods on 18 eyes of healthy volunteers. Manual segmentation by experienced retinal graders from the Vienna Reading Center and automated segmentation on >6300 images of the choroid from both devices were statistically compared. Model-based comparison between SD-OCT/SS-OCT showed a systematic difference in choroidal thickness of 16.26±0.725 μm (pthickness of -0.68±0.513 μm (p=0.1833). The correlation coefficients for SD-OCT and SS-OCT measures within eyes were 0.975 for manual segmentation and 0.955 for automatic segmentation. Choroidal thickness measurements of SD-OCT and SS-OCT indicate that these two devices are interchangeable with a trend of choroidal thickness measurements being slightly thicker on SD-OCT with limited clinical relevance. Use of an automated algorithm to segment choroidal thickness was validated in healthy volunteers. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

  16. Integrating open-source technologies to build low-cost information systems for improved access to public health data

    Directory of Open Access Journals (Sweden)

    Oberle Mark W

    2008-06-01

    Full Text Available Abstract Effective public health practice relies on the availability of public health data sources and assessment tools to convey information to investigators, practitioners, policy makers, and the general public. Emerging communication technologies on the Internet can deliver all components of the "who, what, when, and where" quartet more quickly than ever with a potentially higher level of quality and assurance, using new analysis and visualization tools. Open-source software provides the opportunity to build low-cost information systems allowing health departments with modest resources access to modern data analysis and visualization tools. In this paper, we integrate open-source technologies and public health data to create a web information system which is accessible to a wide audience through the Internet. Our web application, "EpiVue," was tested using two public health datasets from the Washington State Cancer Registry and Washington State Center for Health Statistics. A third dataset shows the extensibility and scalability of EpiVue in displaying gender-based longevity statistics over a twenty-year interval for 3,143 United States counties. In addition to providing an integrated visualization framework, EpiVue's highly interactive web environment empowers users by allowing them to upload their own geospatial public health data in either comma-separated text files or MS Excel™ spreadsheet files and visualize the geospatial datasets with Google Maps™.

  17. An open source infrastructure for managing knowledge and finding potential collaborators in a domain-specific subset of PubMed, with an example from human genome epidemiology

    Directory of Open Access Journals (Sweden)

    Khoury Muin J

    2007-11-01

    Full Text Available Abstract Background Identifying relevant research in an ever-growing body of published literature is becoming increasingly difficult. Establishing domain-specific knowledge bases may be a more effective and efficient way to manage and query information within specific biomedical fields. Adopting controlled vocabulary is a critical step toward data integration and interoperability in any information system. We present an open source infrastructure that provides a powerful capacity for managing and mining data within a domain-specific knowledge base. As a practical application of our infrastructure, we presented two applications – Literature Finder and Investigator Browser – as well as a tool set for automating the data curating process for the human genome published literature database. The design of this infrastructure makes the system potentially extensible to other data sources. Results Information retrieval and usability tests demonstrated that the system had high rates of recall and precision, 90% and 93% respectively. The system was easy to learn, easy to use, reasonably speedy and effective. Conclusion The open source system infrastructure presented in this paper provides a novel approach to managing and querying information and knowledge from domain-specific PubMed data. Using the controlled vocabulary UMLS enhanced data integration and interoperability and the extensibility of the system. In addition, by using MVC-based design and Java as a platform-independent programming language, this system provides a potential infrastructure for any domain-specific knowledge base in the biomedical field.

  18. An Insight into the Time Domain Phenomenon during the Transition Zone from Induction Motor to Synchronous Motor Mode for a Current Source Inverter Fed Synchronous Motor Drive System

    Directory of Open Access Journals (Sweden)

    A.B. Chattopadhyay

    2014-10-01

    Full Text Available Modeling of synchronous motor plays a dominant role in designing complicated drive system for different applications, especially large blower fans etc., for steel industries. As synchronous motor has no inherent starting torque generally it is started as an induction motor with the help of a damper winding and it pulls into synchronism under certain conditions. The present study exactly concentrates on this particular zone of transition from induction motor to synchronous motor mode for a current source inverter fed synchronous motor drive system. Due to complexity of synchronous motor in terms of number of windings and finite amount of air gap saliency, direct modeling of such transition zone in time domain becomes cumbersome at the first instance of modeling. That is why firstly the modeling is presented in complex frequency domain and then the time domain modeling is obtained by applying inverse Laplace transform technique. Apparently it seems to be a straight forward mathematical treatment but involvement of Convolution Integral for converting the formulation from s-domain to time domain becomes a matter of interest and it may draw the attention of various researchers working in this area. Furthermore the time domain response of the disturbance function may help a designer to fix up the time instant when the pull in phenomenon will be imposed by throwing the field winding to a DC supply.

  19. Discrete-Time Domain Modelling of Voltage Source Inverters in Standalone Applications: Enhancement of Regulators Performance by Means of Smith Predictor

    DEFF Research Database (Denmark)

    Federico, de Bosio; de Sousa Ribeiro, Luiz Antonio; Freijedo Fernandez, Francisco Daniel

    2017-01-01

    and Smith predictor design, respectively, are obtained. Subsequently, the voltage regulator is also designed for a wide bandwidth, which permits the inclusion of resonant filters for the steady-state mitigation of odd harmonics at nonlinear unbalance load terminals. Discrete-time domain implementation......The decoupling of the capacitor voltage and inductor current has been shown to improve significantly the dynamic performance of voltage source inverters in standalone applications. However, the computation and PWM delays still limit the achievable bandwidth. In this paper a discrete-time domain...

  20. Comparative analysis of public's perception of economic feasibility and reality for selected energy sources in Korea

    Energy Technology Data Exchange (ETDEWEB)

    Roh, Seungkook; Jeong, Ik; Lee, Kibog [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of); Kim, Dongwook [KAIST, Daejeon (Korea, Republic of); Kim, Hyunjin [Korea Nuclear Energy Agency, Seoul (Korea, Republic of)

    2016-10-15

    Controversy on nuclear energy has persisted ever since, but nuclear energy has maintained around 30% of electricity generation in Korea. This is because Korean wants to secure energy security and diversity of energy sources, but the most rational driver behind nuclear energy is the economic feasibility. Looking at the actual prices of electricity traded in the Korean Power Exchange, the price of electricity generated by nuclear energy is 39.1 Korean won per kWh, which is lower than that of other sources: 58.9 (bituminous coal), 221.8 (oil), 158.6 (gas), 170.9 (hydropower), 162.8 (wind) and 463.1 (photovoltaic). However only experts, regulators and people from electricity generation industry are aware of this fact and the public does not seem to be perceiving this correctly. This research, therefore, will compare the economic feasibility of energy sources and how it is perceived by the public in general. This research was able to identify the large gap between public's perception on and reality of economic feasibility of energy sources. There are two possible reasons for the gap. Firstly, the electricity price paid by the public is agnostic of energy sources. Therefore, it is difficult for the public to be aware that the electricity from nuclear energy is benefiting them and hence the public would be indifferent to the real economic feasibility. Secondly, public's awareness of nuclear reactor decommissioning and spent fuel processing along with easier access to relevant information the media would have played a role. In fact, number of press and media has questioned the economic feasibility of nuclear energy. However, the price of electricity generated by nuclear energy includes costs for future activities such as decommissioning, radioactive waste disposal and spent fuel disposal. The public seems to be not aware of such fact and therefore favoring the media. Such analysis leads to two major policy implications. Most importantly, the government should

  1. School Public Relations: The Complete Book. A Source Book of Proven PR Practices.

    Science.gov (United States)

    Davis, B. Rodney; Ross, Virginia M., Ed.

    School public relations is a planned and systematic management function relying on a comprehensive, two-way communication process involving both internal and external publics with a goal of stimulating a better understanding of the role, objectives, accomplishments, and needs of the organization. The function of school public relations is, first,…

  2. Relationship of work-family conflict with burnout and marital satisfaction: cross-domain or source attribution relations?

    Directory of Open Access Journals (Sweden)

    Razieh Bagherzadeh

    2016-03-01

    Conclusion: In terms of practical implication, to avoid creating disadvantages of WIF and FIW,facilitation in two domains of improving work and family conditions can be a useful means to prevent WFC and its consequences.

  3. Evaluation of Public Service Advertising Messages with Local and Non-Local Source Attribution: A Controlled Laboratory Experiment.

    Science.gov (United States)

    Lynn, Jerry R.; Gagnard, Alice

    A study was conducted to examine message evaluations of selected public service advertisements (PSAs) by a young adult population and to test whether local and nonlocal source attribution would influence those evaluations. In addition, the study investigated the extent to which audience characteristics such as fatalism (the degree to which a…

  4. Socio-Technical Deliberation about Free and Open Source Software: Accounting for the Status of Artifacts in Public Life

    Science.gov (United States)

    Benoit-Barne, Chantal

    2007-01-01

    This essay investigates the rhetorical practices of socio-technical deliberation about free and open source (F/OS) software, providing support for the idea that a public sphere is a socio-technical ensemble that is discursive and fluid, yet tangible and organized because it is enacted by both humans and non-humans. In keeping with the empirical…

  5. OLS Client and OLS Dialog: Open Source Tools to Annotate Public Omics Datasets.

    Science.gov (United States)

    Perez-Riverol, Yasset; Ternent, Tobias; Koch, Maximilian; Barsnes, Harald; Vrousgou, Olga; Jupp, Simon; Vizcaíno, Juan Antonio

    2017-10-01

    The availability of user-friendly software to annotate biological datasets and experimental details is becoming essential in data management practices, both in local storage systems and in public databases. The Ontology Lookup Service (OLS, http://www.ebi.ac.uk/ols) is a popular centralized service to query, browse and navigate biomedical ontologies and controlled vocabularies. Recently, the OLS framework has been completely redeveloped (version 3.0), including enhancements in the data model, like the added support for Web Ontology Language based ontologies, among many other improvements. However, the new OLS is not backwards compatible and new software tools are needed to enable access to this widely used framework now that the previous version is no longer available. We here present the OLS Client as a free, open-source Java library to retrieve information from the new version of the OLS. It enables rapid tool creation by providing a robust, pluggable programming interface and common data model to programmatically access the OLS. The library has already been integrated and is routinely used by several bioinformatics resources and related data annotation tools. Secondly, we also introduce an updated version of the OLS Dialog (version 2.0), a Java graphical user interface that can be easily plugged into Java desktop applications to access the OLS. The software and related documentation are freely available at https://github.com/PRIDE-Utilities/ols-client and https://github.com/PRIDE-Toolsuite/ols-dialog. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  6. The More the Better? A Comparison of the Information Sources Used by the Public during Two Infectious Disease Outbreaks.

    Science.gov (United States)

    Jardine, Cynthia G; Boerner, Franziska U; Boyd, Amanda D; Driedger, S Michelle

    2015-01-01

    Recent infectious disease outbreaks have resulted in renewed recognition of the importance of risk communication planning and execution to public health control strategies. Key to these efforts is public access to information that is understandable, reliable and meets their needs for informed decision-making on protective health behaviours. Learning from the trends in sources used in previous outbreaks will enable improvements in information access in future outbreaks. Two separate random-digit dialled telephone surveys were conducted in Alberta, Canada, to explore information sources used by the public, together with their perceived usefulness and credibility, during the 2003 Severe Acute Respiratory Syndrome (SARS) epidemic (n = 1209) and 2009-2010 H1N1 pandemic (n = 1206). Traditional mass media were the most used information sources in both surveys. Although use of the Internet increased from 25% during SARS to 56% during H1N1, overall use of social media was not as high as anticipated. Friends and relatives were commonly used as an information source, but were not deemed very useful or credible. Conversely, doctors and health professionals were considered credible, but not consulted as frequently. The use of five or more information sources increased by almost 60% between the SARS and H1N1 surveys. There was a shift to older, more educated and more affluent respondents between the surveys, most likely caused by a decrease in the use of landlines amongst younger Canadians. It was concluded that people are increasingly using multiple sources of health risk information, presumably in a complementary manner. Subsequently, although using online media is important, this should be used to augment rather than replace more traditional information channels. Efforts should be made to improve knowledge transfer to health care professionals and doctors and provide them with opportunities to be more accessible as information sources. Finally, the future use of telephone

  7. The More the Better? A Comparison of the Information Sources Used by the Public during Two Infectious Disease Outbreaks.

    Directory of Open Access Journals (Sweden)

    Cynthia G Jardine

    Full Text Available Recent infectious disease outbreaks have resulted in renewed recognition of the importance of risk communication planning and execution to public health control strategies. Key to these efforts is public access to information that is understandable, reliable and meets their needs for informed decision-making on protective health behaviours. Learning from the trends in sources used in previous outbreaks will enable improvements in information access in future outbreaks. Two separate random-digit dialled telephone surveys were conducted in Alberta, Canada, to explore information sources used by the public, together with their perceived usefulness and credibility, during the 2003 Severe Acute Respiratory Syndrome (SARS epidemic (n = 1209 and 2009-2010 H1N1 pandemic (n = 1206. Traditional mass media were the most used information sources in both surveys. Although use of the Internet increased from 25% during SARS to 56% during H1N1, overall use of social media was not as high as anticipated. Friends and relatives were commonly used as an information source, but were not deemed very useful or credible. Conversely, doctors and health professionals were considered credible, but not consulted as frequently. The use of five or more information sources increased by almost 60% between the SARS and H1N1 surveys. There was a shift to older, more educated and more affluent respondents between the surveys, most likely caused by a decrease in the use of landlines amongst younger Canadians. It was concluded that people are increasingly using multiple sources of health risk information, presumably in a complementary manner. Subsequently, although using online media is important, this should be used to augment rather than replace more traditional information channels. Efforts should be made to improve knowledge transfer to health care professionals and doctors and provide them with opportunities to be more accessible as information sources. Finally, the future use

  8. Looking Upstream: Findings from Focus Groups on Public Perceptions of Source Water Quality in British Columbia, Canada.

    Directory of Open Access Journals (Sweden)

    Natalie Henrich

    Full Text Available In association with the development of new microbial tests for source water quality (SWQ, focus groups with members of the public were conducted to gain insight into their perceptions of SWQ, behaviours and contaminants they think pose the greatest threat to its quality, and what/how they want to know about SWQ. Discussions revealed a low concern about SWQ in general, and in particular about microbial contamination. Participants identified behaviours that threaten SWQ, barriers to changing behaviour and suggestions for inducing change. A strong desire was expressed for water quality information to be interpreted and communicated in terms of how SWQ may impact human health and how their actions should be altered in response to test results. The information can be used to inform communication strategies and possibly impact policies associated with water quality testing and implementation of new tests. More broadly, awareness of the public's understanding and beliefs about source water can be used in working with the public to adopt water-friendly behaviours, influence the content and methods of communicating with the public about water issues and water quality, and could contribute to the direction of future research and investment into water technologies to align with the public's priorities.

  9. Instance-based Transfer Learning for Multi-source Domains%一种面向多源领域的实例迁移学习

    Institute of Scientific and Technical Information of China (English)

    张倩; 李明; 王雪松; 程玉虎; 朱美强

    2014-01-01

    The most remarkable characteristic of transfer learning is that it can employ the knowledge in relative domains to help perform the learning tasks in the domain of the target. With the use of different fields of knowledge for target task learning, transfer learning can transfer and share the information between similar domains or tasks, making the traditional learning from scratch an addable one, which implies that the learning effciency is higher and the cost is lower. For the specific situation that the shared knowledge in the domains of the source and the target are sample data with similar distribution, an instance transfer learning method based on multi-sources dynamic TrAdaBoost is put forward. Integrated with the knowledge in multiple source domains, this method makes the target task learning the one that is able to make good use of the information of all source domains. Whenever candidate classifiers are trained, all the samples in all source domains are involved in learning, and the information conducive to target task learning can be obtained, so that negative transfer can be avoided. The theoretical analysis suggests that the given algorithm is better than the single source transfer. By means of adding the dynamic factor, this algorithm improves the defect that weight entropy drifts from source to target instances. The experimental results support that the given algorithm has the advantage of improving the recognition rate.%在迁移学习最大的特点就是利用相关领域的知识来帮助完成目标领域中的学习任务,它能够有效地在相似的领域或任务之间进行信息的共享和迁移,使传统的从零开始的学习变成可积累的学习,具有成本低、效率高等优点。针对源领域数据和目标领域数据分布类似的情况,提出一种基于多源动态TrAdaBoost的实例迁移学习方法。该方法考虑多个源领域知识,使得目标任务的学习可以充分利用所有源领域信息,

  10. An open-source, mobile-friendly search engine for public medical knowledge.

    Science.gov (United States)

    Samwald, Matthias; Hanbury, Allan

    2014-01-01

    The World Wide Web has become an important source of information for medical practitioners. To complement the capabilities of currently available web search engines we developed FindMeEvidence, an open-source, mobile-friendly medical search engine. In a preliminary evaluation, the quality of results from FindMeEvidence proved to be competitive with those from TRIP Database, an established, closed-source search engine for evidence-based medicine.

  11. EPA Office of Water (OW): SDWIS - HUC12 Densities for Public Surface Water and Groundwater Sources

    Data.gov (United States)

    U.S. Environmental Protection Agency — Public Water System location points, based on information from the Safe Drinking Water Act Information System (SDWIS/Federal) for a 2010 third quarter (SDWIS_2010Q3)...

  12. Select Bibliography and Overview of Bunge's Publications Related to Reference Sources.

    Science.gov (United States)

    Gelfand, Julia

    1999-01-01

    Includes citations to five articles written by Charles Bunge related to reference sources and provides an overview of his views on reference materials. Highlights include sources with the most information; images and illustrative material, especially in light of technology; and collection development, including reviewing tools. (LRW)

  13. Public utilities with renewable energy sources. Proceedings; Stadtwerke mit Erneuerbaren Energien. Konferenzbeitraege

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    Within the Second EUROSOLAR Conference of EUROSOLAR, the European Association for Renewable Energy (Bonn, Federal Republic of Germany) between 15th and 16th May, 2008, at the Waterworks Braunschweig (Federal Republic of Germany), the following lectures were held: (1) The municipal public utility: The paradigm shift from power distribution companies to municipal infrastructure provider (C. Jaenig); (2) Public utilities and their concepts (Z. Meszaros); (3) The BS Energy Group (U.Lehmann-Grube); (4) New ways with energy (T. Westerheide); (5) Public utilities and their concepts (R. Edzards); (6) Public utilities with renewable energy (P. Asmuth); (7) Total concept of the public utility Wolfhagen (M. Ruehl); (8) Municipal energy concepts for the expansion of the combined heat and power generation and renewable energies (J. van Bergen); (9) Storage of renewable energy (T. Blank); (10) Public utility as a confident partner of a renewable regional economy (R. Hemmers); (11) The regenerative combined cycle power plant (M. Meyr); (12) The solar power system of systaic (O. Achilles); (13) The concession contract as an instrument for restructuring (J. Schwarz); (14) EEG 2009, GasNZV and EEWaermeG: The changed legal framework as a chance for a restructured power generation (M. Altrock).

  14. 报刊公共领域与邹韬奋%The public domain of newspaper and journal and Zou Taofen

    Institute of Scientific and Technical Information of China (English)

    董亚秋

    2012-01-01

      众所周知,邹韬奋是我国卓越的新闻记者、出版家,更是一名进步爱国的政论家。他主编的《生活》周刊、《大众生活》和《全民抗战》刊物,由于其客观的立场、报刊的公共性和其注重与读者平等的讨论,构成了报刊公共领域。作为这一公共领域中的发言人角色,邹韬奋积极发表新闻评论,设立读者信箱和小言论等精品栏目,与读者和同仁进行交流。这些编辑出版活动充分展现了邹韬奋在报刊公共空间中的舆论引导作用。%  As we all know, Zou Tao-fen is an excellent journalist, publishing house, was a progressive patriotic political commentators. He published in life magazine, the public and the National Journal of the war, due to its objective of publicity and its focus on position, press and reader discussions on an equal footing, forming the newspaper of the public domain. Role as spokesman in this public area, Zou Tao-fen news positive comments, set up reader mail and small boutique, such as columns, communicate with colleagues and readers. These activities have fully demonstrated Zou taofen's editing and publishing in the newspaper public opinion to guide the role of the public space.

  15. Network Hatred:Obstruction and Decomposition of Order Construction in Virtual Public Domain%网络怨恨:虚拟公共领域秩序建构的梗阻与消解

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    网络怨恨既是一种情感体验,也是一种生存状态。越来越多的虚拟社会现象表明,网络怨恨已经出现了一定程度上的弥散,虚拟公共领域秩序建构因而面临着无法回避的现实梗阻。网络怨恨导致无直接利益冲突的网络暴力频现,基于网络民粹主义的阶层对抗遭遇激化,同时网络空间出现颠覆性的价值位移。究其根源,网络怨恨与网络世界的平等理念、现代社会的竞争意识和难以克服的现实困境密切相关。需要通过提升虚拟公共领域的公共理性,适度满足网络怨恨的宣泄需求,构建包容性发展的网络监督体系,纠正虚拟公共领域中的价值位移等途径,才能真正消解网络怨恨,实现虚拟公共领域的秩序化运行。%Network hatred is not only an emotional experience , but also a living state.It is suggested by more and more virtual social phenomenon that network hatred has been dispersing in the new public domain and has become virtual social emotions in the keynote.Thus, order construction in the virtual public domain has been ex-posed to practical obstructions which cannot be evaded.As a result of network hatred , network violence , which has no direct conflict of interests , frequently shows up , and network populism-based hierarchical confrontation is triggered , and concurrently , subversive value displacement shows up in network space.Tracing to the source , network hatred is closely related to the equality philosophy of network world , the sense of competition in the modern society and the insurmountable practical difficulties.Only by such channels as improving public reason of the virtual public domain , moderately satisfying the needs for unbosoming network hatred , constructing net-work supervision system under inclusive development and correcting value displacement in the virtual public do -main, can network hatred be truly decomposed and regularized operation of the

  16. Authentic leadership as a source of optimism, trust in the organisation and work engagement in the public health care sector

    Directory of Open Access Journals (Sweden)

    Frederick W. Stander

    2015-03-01

    Full Text Available Orientation: The orientation of this study is towards authentic leadership (AL and its influence on optimism, trust in the organisation and work engagement of employees in the public health care sector.Research purpose: The objectives of this study were to determine whether the leadership style of AL could predict optimism, trust in the organisation and work engagement amongst a large sample of employees from various functions in public hospitals and clinics in Gauteng and to establish whether optimism and trust in the organisation could mediate the relationship between AL and work engagement.Research approach, design and method: A convenience sample of 633 public health employees from various functions within 27 public hospitals and clinics in the province was used in this research. A cross-sectional research design was implemented. Structural equation modelling was utilised to investigate the Authentic Leadership Inventory (ALI, and the validity and fit of the measurement model, to position AL as a job resource within the nomological net and to test its mediating effects.Main findings: The statistical analysis revealed that AL was a significant predictor of optimism and trust in the organisation and that optimism and trust in the organisation mediated the relationship between AL and work engagement.Practical/managerial implications: The research results suggested that organisations in the public health care sector should encourage their managers to adopt a more authentic leadership style. This will lead to higher levels of optimism, trust in the organisation and eventually work engagement. This will greatly assist employees in the domain of public health care to manage their demanding working environment.Contribution: This study provides evidence that the ALI can be used reliably within the South African context and specifically within the public health care sector. It further substantiates for the implementation of AL as a leadership style in

  17. Evaluation of Energy Use in Public Housing in Lagos, Nigeria: Prospects for Renewable Energy Sources

    National Research Council Canada - National Science Library

    Isidore Chukwunweike Ezema; Abiodun O Olotuah; Olabosipo I Fagbenle

    2016-01-01

      Even though domestic energy can be from either renewable or non-renewable sources, the former is preferred because of its role in reducing both the operational energy intensity and carbon footprint...

  18. A Synergistic Approach to Human Rights and Public Health Ethics: Effective or a Source of Conflict?

    Directory of Open Access Journals (Sweden)

    Steinmetz-Wood, Madeleine

    2014-12-01

    Full Text Available Concerns over the growing disparities in health and wealth between members of society incited Stephanie Nixon and Lisa Forman, in their 2008 article Exploring synergies between human rights and public health ethics: A whole greater than the sum of its parts, to propose that the principles of human rights and public health ethics should be used in combination to develop norms for health action. This commentary reflects on the benefits as well as the difficulties that could arise from taking such an approach.

  19. IQMNMR: Open source software using time-domain NMR data for automated identification and quantification of metabolites in batches

    Directory of Open Access Journals (Sweden)

    Song Xu

    2011-08-01

    Full Text Available Abstract Background One of the most promising aspects of metabolomics is metabolic modeling and simulation. Central to such applications is automated high-throughput identification and quantification of metabolites. NMR spectroscopy is a reproducible, nondestructive, and nonselective method that has served as the foundation of metabolomics studies. However, the automated high-throughput identification and quantification of metabolites in NMR spectroscopy is limited by severe spectral overlap. Although numerous software programs have been developed for resolving overlapping resonances, as well as for identifying and quantifying metabolites, most of these programs are frequency-domain methods, considerably influenced by phase shifts and baseline distortions, and effective only in small-scale studies. Almost all these programs require multiple spectra for each application, and do not automatically identify and quantify metabolites in batches. Results We created IQMNMR, an R package that integrates a relaxation algorithm, digital filter, and similarity search algorithm. It differs from existing software in that it is a time-domain method; it uses not only frequency to resolve overlapping resonances but also relaxation time constants; it requires only one NMR spectrum per application; is uninfluenced by phase shifts and baseline distortions; and most important, yields a batch of quantified metabolites. Conclusions IQMNMR provides a solution that can automatically identify and quantify metabolites by one-dimensional proton NMR spectroscopy. Its time-domain nature, stability against phase shifts and baseline distortions, requirement for only one NMR spectrum, and capability to output a batch of quantified metabolites are of considerable significance to metabolic modeling and simulation. IQMNMR is available at http://cran.r-project.org/web/packages/IQMNMR/.

  20. Discipline as a Source of Public Relations in a Christian School

    Science.gov (United States)

    Simmons, Brian S.

    2004-01-01

    Christian schools, like all private schools, face the challenge of building and maintaining the confidence of parents and other stakeholders. Their public relations efforts should be rooted in institutional mission and core values, factors that influence parents to elect this educational option. Administrators and others often overlook the fact…

  1. The sailor, the turtle and the jungle man - striking the balance between protection and public domain in fictional character merchandising

    OpenAIRE

    Preiss LL.M., Sven

    2013-01-01

    What is it that ‘Popeye the Sailor’, the ‘Teenage Mutant Hero Turtles’ and ‘Tarzan’ have in common? Besides being well-known fictitious characters, each of them is overwhelmingly successful in terms of entertainment (for the public) and revenue (for the industry behind it). They exemplify the possibility of the fictional characters’ owners not only using them for their basic purpose, i.e. in books, comics, movies, broadcasts, etc., but also of secondary exploitation of the characters’ gained ...

  2. Trusted Sources: The Role Scientific Societies Can Play in Improving Public Opinions on Climate Change

    Science.gov (United States)

    McEntee, C.; Cairns, A.; Buhrman, J.

    2012-12-01

    Public acceptance of the scientific consensus regarding climate change has eroded and misinformation designed to confuse the public is rapidly proliferating. Those issues, combined with an increase of politically motivated attacks on climate scientists and their research, have led to a place where ideology can trump scientific consensus as the foundation for developing policy solutions. The scientific community has been, thus far, unprepared to respond effectively to these developments. However, as a scientific society whose members engage in climate science research, and one whose organizational mission and vision are centered on the concepts of science for the benefit of humanity and ensuring a sustainable future, the American Geophysical Union can, and should, play an important role in reversing this trend. To that end, in 2011, AGU convened a Leadership Summit on Climate Science Communication, in which presidents, executive directors, and senior public policy staff from 17 scientific organizations engaged with experts in the social sciences regarding effective communication of climate science and with practitioners from agriculture, energy, and the military. The discussions focused on three key issues: the environment of climate science communication; public understanding of climate change; and the perspectives of consumers of climate science-based information who work with specific audiences. Participants diagnosed previous challenges and failings, enumerated the key constituencies that need to be effectively engaged, and identified the critical role played by cultural cognition—the influence of group values, particularly around equality and authority, individualism, and community; and the perceptions of risk. Since that meeting, AGU has consistently worked to identify and explore ways that it, and its members, and improve the effectiveness of their communication with the public about climate change. This presentation will focus on the insights AGU has

  3. Toward a methodology for studying the application of open source innovation practices in non-software domains

    Science.gov (United States)

    Tanev, Stoyan

    2007-05-01

    This article represents an initial step in the development of a research methodology that will be applied later to study open source innovation practices in company projects where the released technology or asset is other than software code. A brief review of four possible analytical approaches is presented based on the research literature on open innovation, horizontal user innovation networks, business ecosystems and value creation and appropriation. The OpenAccess project of the Silicon Integration Initiative (Si2) is considered as a potential case study of non-software open source project.

  4. Validation of Bacteroidales quantitative PCR assays targeting human and animal fecal contamination in the public and domestic domains in India.

    Science.gov (United States)

    Odagiri, Mitsunori; Schriewer, Alexander; Hanley, Kaitlyn; Wuertz, Stefan; Misra, Pravas R; Panigrahi, Pinaki; Jenkins, Marion W

    2015-01-01

    We compared host-associated Bacteroidales qPCR assays developed in the continental United States and Europe for the purpose of measuring the effect of improved sanitation on human fecal exposure in rural Indian communities where both human and animal fecal loading are high. Ten candidate Bacteroidales qPCR assays were tested against fecal samples (human, sewage, cow, buffalo, goat, sheep, dog and chicken) from a test set of 30 individual human, 5 sewage, and 60 pooled animal samples collected in coastal Odisha, India. The two universal/general Bacteroidales assays tested (BacUni, GenBac3) performed equally well, achieving 100% sensitivity on the test set. Across the five human-associated assays tested (HF183 Taqman, BacHum, HumM2, BacH, HF183 SYBR), we found low sensitivity (17 to 49%) except for HF183 SYBR (89%), and moderate to high cross-reactivity with dog (20 to 80%) and chicken fecal samples (60 to 100%). BacHum had the highest accuracy (67%), amplified all sewage samples within the range of quantification (ROQ), and did not cross-react with any fecal samples from cows, the most populous livestock animal in India. Of the ruminant- and cattle-associated assays tested (BacCow, CowM2), BacCow was more sensitive in detecting the full range of common Indian livestock animal fecal sources, while CowM2 only detected cow sources with 50% sensitivity. Neither assay cross-reacted with human sources. BacCan, the dog-associated assay tested, showed no cross-reactivity with human sources, and high sensitivity (90%) for dog fecal samples. Overall, our results indicate BacUni, BacHum, HumM2, BacCan and BacCow would be the most suitable MST assays to distinguish and quantify relative amounts of human-associated and livestock/domestic animal-associated contributions to fecal contamination in Odisha, India.

  5. Modeling and Simulation of Current Source Inverter Fed Synchronous Motor in Complex Frequency Domain Taking the Transition Zone From Induction Motor to Synchronous Motor Mode into Account

    Directory of Open Access Journals (Sweden)

    A.B. Chattopadhyay

    2014-02-01

    Full Text Available Modeling of synchronous motor plays a dominant role in designing complicated drive system for different applications, especially large blower fans etc for steel industries. As synchronous motor has no inherent starting torque generally it is started as an induction motor with the help of a damper winding and it pulls into synchronism under certain conditions. The present paper exactly concentrates on this particular zone of transition from induction motor to synchronous motor mode for a current source inverter fed synchronous motor drive system. Due to complexity of synchronous motor in terms of number of windings and finite amount of air gap saliency, direct modeling of such transition zone in time domain becomes cumbersome at the first instance of modeling. That is why the modeling in complex frequency domain (s-domain has been taken up using small perturbation model. Such a model clearly shows role of induction motor as noise function or disturbance function with respect to the open loop block diagram of synchronous motor. Such finding can be quantized in terms of important results and that is done in the present paper such that the results can help the designer for the successful design of a synchronous motor drive system.

  6. Mining Genotype-Phenotype Associations from Public Knowledge Sources via Semantic Web Querying.

    Science.gov (United States)

    Kiefer, Richard C; Freimuth, Robert R; Chute, Christopher G; Pathak, Jyotishman

    2013-01-01

    Gene Wiki Plus (GeneWiki+) and the Online Mendelian Inheritance in Man (OMIM) are publicly available resources for sharing information about disease-gene and gene-SNP associations in humans. While immensely useful to the scientific community, both resources are manually curated, thereby making the data entry and publication process time-consuming, and to some degree, error-prone. To this end, this study investigates Semantic Web technologies to validate existing and potentially discover new genotype-phenotype associations in GWP and OMIM. In particular, we demonstrate the applicability of SPARQL queries for identifying associations not explicitly stated for commonly occurring chronic diseases in GWP and OMIM, and report our preliminary findings for coverage, completeness, and validity of the associations. Our results highlight the benefits of Semantic Web querying technology to validate existing disease-gene associations as well as identify novel associations although further evaluation and analysis is required before such information can be applied and used effectively.

  7. An assessment of mercury in estuarine sediment and tissue in Southern New Jersey using public domain data

    Science.gov (United States)

    Ng, Kara; Szabo, Zoltan; Reilly, Pamela A.; Barringer, Julia; Smalling, Kelly L.

    2016-01-01

    Mercury (Hg) is considered a contaminant of global concern for coastal environments due to its toxicity, widespread occurrence in sediment, and bioaccumulation in tissue. Coastal New Jersey, USA, is characterized by shallow bays and wetlands that provide critical habitat for wildlife but share space with expanding urban landscapes. This study was designed as an assessment of the magnitude and distribution of Hg in coastal New Jersey sediments and critical species using publicly available data to highlight potential data gaps. Mercury concentrations in estuary sediments can exceed 2 μg/g and correlate with concentrations of other metals. Based on existing data, the concentrations of Hg in mussels in southern New Jersey are comparable to those observed in other urbanized Atlantic Coast estuaries. Lack of methylmercury data for sediments, other media, and tissues are data gaps needing to be filled for a clearer understanding of the impacts of Hg inputs to the ecosystem.

  8. sources

    Directory of Open Access Journals (Sweden)

    Shu-Yin Chiang

    2002-01-01

    Full Text Available In this paper, we study the simplified models of the ATM (Asynchronous Transfer Mode multiplexer network with Bernoulli random traffic sources. Based on the model, the performance measures are analyzed by the different output service schemes.

  9. Domains and domain loss

    DEFF Research Database (Denmark)

    Haberland, Hartmut

    2005-01-01

    The domain concept, originally suggested by Schmidt-Rohr in the 1930’s (as credited in Fishman’s writings in the 1970s), was an attempt to sort out different areas of language use in multilingual societies, which are relevant for language choice. In Fishman’s version, domains were considered...... not described in terms of domains, and recent research e.g. about the multilingual communities in the Danish-German border area seems to confirm this....

  10. Establishing a Web-Based DICOM Teaching File Authoring Tool Using Open-Source Public Software

    OpenAIRE

    Lee, Wen-Jeng; Yang, Chung-Yi; Liu, Kao-Lang; Liu, Hon-Man; Ching, Yu-Tai; Chen, Shyh-Jye

    2005-01-01

    Online teaching files are an important source of educational and referential materials in the radiology community. The commonly used Digital Imaging and Communications in Medicine (DICOM) file format of the radiology community is not natively supported by common Web browsers. The ability of the Web server to convert and parse DICOM is important when the DICOM-converting tools are not available. In this paper, we describe our approach to develop a Web-based teaching file authoring tool. Our se...

  11. Getting sports injury prevention on to public health agendas - addressing the shortfalls in current information sources.

    Science.gov (United States)

    Finch, Caroline F

    2012-01-01

    Public health policy is a successful population-level strategy for injury prevention but it is yet to be widely applied to the sports sector. Such policy is generally coordinated by government health departments concerned with the allocation of limited resources to health service delivery and preventive programs for addressing large community health issues. Prioritisation of sports injury prevention (SIP) requires high-quality evidence about the size of the problem and its public health burden; identification of at-risk vulnerable groups; confirmed effective prevention solutions; evidence of intervention cost-effectiveness; and quantification of both financial and policy implications of inaction. This paper argues that the major reason for a lack of sports injury policy by government departments for health or sport to date is a lack of relevant information available for policy makers to make their decisions. Key information gaps evident in Australia are used to highlight this problem. SIP policy does not yet rank highly because, relative to other health/injury issues, there is very little hard evidence to support: claims for its priority ranking, the existence of solutions that can be implemented and which will work, and potential cost-savings to government agencies. Moreover, policy action needs to be integrated across government portfolios, including sport, health and others. Until sports medicine research generates high-quality population-level information of direct relevance and importance to policy makers, especially intervention costing and implementation cost-benefit estimates, and fully engage in policy-informing partnerships, SIP will continue to be left off the public health agenda.

  12. Understanding Public Views about Air Quality and Air Pollution Sources in the San Joaquin Valley, California.

    Science.gov (United States)

    Cisneros, Ricardo; Brown, Paul; Cameron, Linda; Gaab, Erin; Gonzalez, Mariaelena; Ramondt, Steven; Veloz, David; Song, Anna; Schweizer, Don

    2017-01-01

    The San Joaquin Valley of California has poor air quality and high rates of asthma. Surveys were collected from 744 residents of the San Joaquin Valley from November 2014 to January 2015 to examine the public's views about air quality. The results of this study suggest that participants exposed to high PM2.5 (particulate matter less than 2.5 microns in size) concentrations perceived air pollution to be of the worst quality. Air quality in the San Joaquin Valley was primarily perceived as either moderate or unhealthy for sensitive groups. Females perceived air pollution to be of worse quality compared to males. Participants perceived unemployment, crime, and obesity to be the top three most serious community problems in the San Joaquin Valley. Participants viewed cars and trucks, windblown dust, and factories as the principle contributors to air pollution in the area. There is a need to continue studying public perceptions of air quality in the San Joaquin Valley with a more robust survey with more participants over several years and seasons.

  13. The association of knowledge with concern about global warming: trusted information sources shape public thinking.

    Science.gov (United States)

    Malka, Ariel; Krosnick, Jon A; Langer, Gary

    2009-05-01

    During the last decade, a great deal of news media attention has focused on informing the American public about scientific findings on global warming (GW). Has learning this sort of information led the American public to become more concerned about GW? Using data from two surveys of nationally representative samples of American adults, this article shows that the relation between self-reported knowledge and concern about GW is more complex than what previous research has suggested. Among people who trust scientists to provide reliable information about the environment and among Democrats and Independents, increased knowledge has been associated with increased concern. But among people who are skeptical about scientists and among Republicans more knowledge was generally not associated with greater concern. The association of knowledge with concern among Democrats and Independents who trust scientists was mediated by perceptions of consensus among scientists about GW's existence and by perceptions that humans are a principal cause of GW. Moreover, additional analyses of panel survey data produced findings consistent with the notion that more knowledge yields more concern among Democrats and Independents, but not among Republicans. Thus, when studying the relation of knowledge and concern, it is important to take into account the content of the information that different types of people acquire and choose to rely upon.

  14. Relationship of work-family conflict with burnout and marital satisfaction: cross-domain or source attribution relations?

    Science.gov (United States)

    Bagherzadeh, Razieh; Taghizadeh, Ziba; Mohammadi, Eesa; Kazemnejad, Anoshirvan; Pourreza, Abolghasem; Ebadi, Abbas

    2016-01-01

    Background: The present study was conducted to examine the relationship between two dimensions of work-family conflict (WFC) with marital satisfaction and burnout in a society in which few studies have been done about the consequences of WFC. Methods: A cross-sectional study was conducted in 2015. Surveys were distributed to 420 employed married women with various jobs living in Bushehr province, Iran. Data were collected using a questionnaire for demographic characteristic, the Netmeyer’s WFC questionnaire, Maslach Burnout Inventory: General Survey (MBI-GS), and Enrich maritalsatisfaction questionnaire. The data were analyzed using descriptive and inferential statistics. Results: There was a negatively significant association between work interference with family(WIF) and overall burnout as well as emotional exhaustion (P < .01). Family interference with work (FIW) was significantly associated with depersonalization (P < .01). The overall marital satisfaction and its subscales were significantly associated with WIF (P < .01) and FIW (P < .01 for overall marital satisfaction and P < .05 for its subscales). Conclusion: In terms of practical implication, to avoid creating disadvantages of WIF and FIW,facilitation in two domains of improving work and family conditions can be a useful means to prevent WFC and its consequences. PMID:27123434

  15. Xenic Cultivation and Genotyping of Pathogenic Free-Living Amoeba from Public Water Supply Sources in Uganda

    Directory of Open Access Journals (Sweden)

    Celsus Sente

    2016-01-01

    Full Text Available Studies on waterborne parasites from natural environment and domestic water sources in Uganda are very scarce and unpublished. Water dwelling free-living amoebae (FLA of the genus Acanthamoeba, Hartmannella, and Naegleria are often responsible for causing morbidities and mortalities in individuals with recent contact with contaminated water, but their presence in Uganda’s public water supply sources is not known. We cultivated and genotyped FLA from natural and domestic water from Queen Elizabeth Protected Area (QEPA and Kampala (KLA. The cultivated parasites were observed microscopically and recorded. The overall prevalence of FLA in QEPA (Acanthamoeba spp., 35%; Hartmannella spp., 18.9%; Naegleria spp., 13.5% and KLA (Acanthamoeba spp., 28.3%; Naegleria spp., 16.6%; Hartmannella spp., 23.1% were not significantly different. The highest prevalence across water sources in QEPA and KLA was observed for Acanthamoeba spp., followed by Hartmannella spp., and Naegleria spp. Overall FLA mean (±SE and mean (±SE across water sources were highest for Acanthamoeba spp. compared to other FLA but were not statistically significant (p > 0.05. Analysis of the FLA sequences produced 1 Cercomonas, 1 Nuclearia, 1 Bodomorpha, 2 Hartmannella, 5 Echinamoeba, and 7 Acanthamoeba partial sequences, indicating a muliplicity of water contaminants that need to be controlled by proper water treatment.

  16. Sources of financial pressure and up coding behavior in French public hospitals.

    Science.gov (United States)

    Georgescu, Irène; Hartmann, Frank G H

    2013-05-01

    Drawing upon role theory and the literature concerning unintended consequences of financial pressure, this study investigates the effects of health care decision pressure from the hospital's administration and from the professional peer group on physician's inclination to engage in up coding. We explore two kinds of up coding, information-related and action-related, and develop hypothesis that connect these kinds of data manipulation to the sources of pressure via the intermediate effect of role conflict. Qualitative data from initial interviews with physicians and subsequent questionnaire evidence from 578 physicians in 14 French hospitals suggest that the source of pressure is a relevant predictor of physicians' inclination to engage in data-manipulation. We further find that this effect is partly explained by the extent to which these pressures create role conflict. Given the concern about up coding in treatment-based reimbursement systems worldwide, our analysis adds to understanding how the design of the hospital's management control system may enhance this undesired type of behavior.

  17. Information Sources on Primetime News Programs of Entity Public Service Television Stations in B&H and Commercial NTV Hayat

    Directory of Open Access Journals (Sweden)

    Zarfa Hrnjić

    2010-12-01

    Full Text Available Sources of information used by mass media for presenting events are among the key criteria in evaluating news credibility, whether the credibility is perceived from recipients’ or professionals’ perspectives. The aim of this research is to determine the credibility of TV news in terms of professional imperatives of objectivity, whereas the majority of research on this issue centers on media credibility evaluated from the perspective of the intended audiences. Considering the fact that audience perception is strongly influenced by its (disaffinity for a specific media, particularly in B&H, we consider the analysis from the professional standards to be more objective. The goal of the quantitative and qualitative analysis of the contests emitted on primetime news programs of two public and one commercial TV stations in B&H is to determine how credible and reliable the news was as well as its overall objectivity and fairness. The results reveal that the differences were not most evident between the public and commercial TV stations, but rather between the entity televisions despite the fact that they belong to the same RTV system. Coverage of the same events on the three TV stations indicates that the reports were based primarily on one-sided and biased sources.

  18. Harmonic allocation of authorship credit: source-level correction of bibliometric bias assures accurate publication and citation analysis.

    Directory of Open Access Journals (Sweden)

    Nils T Hagen

    Full Text Available Authorship credit for multi-authored scientific publications is routinely allocated either by issuing full publication credit repeatedly to all coauthors, or by dividing one credit equally among all coauthors. The ensuing inflationary and equalizing biases distort derived bibliometric measures of merit by systematically benefiting secondary authors at the expense of primary authors. Here I show how harmonic counting, which allocates credit according to authorship rank and the number of coauthors, provides simultaneous source-level correction for both biases as well as accommodating further decoding of byline information. I also demonstrate large and erratic effects of counting bias on the original h-index, and show how the harmonic version of the h-index provides unbiased bibliometric ranking of scientific merit while retaining the original's essential simplicity, transparency and intended fairness. Harmonic decoding of byline information resolves the conundrum of authorship credit allocation by providing a simple recipe for source-level correction of inflationary and equalizing bias. Harmonic counting could also offer unrivalled accuracy in automated assessments of scientific productivity, impact and achievement.

  19. Current limitations of SNP data from the public domain for studies of complex disorders: a test for ten candidate genes for obesity and osteoporosis

    Directory of Open Access Journals (Sweden)

    Xiao Peng

    2004-02-01

    Full Text Available Abstract Background Public SNP databases are frequently used to choose SNPs for candidate genes in the association and linkage studies of complex disorders. However, their utility for such studies of diseases with ethnic-dependent background has never been evaluated. Results To estimate the accuracy and completeness of SNP public databases, we analyzed the allele frequencies of 41 SNPs in 10 candidate genes for obesity and/or osteoporosis in a large American-Caucasian sample (1,873 individuals from 405 nuclear families by PCR-invader assay. We compared our results with those from the databases and other published studies. Of the 41 SNPs, 8 were monomorphic in our sample. Twelve were reported for the first time for Caucasians and the other 29 SNPs in our sample essentially confirmed the respective allele frequencies for Caucasians in the databases and previous studies. The comparison of our data with other ethnic groups showed significant differentiation between the three major world ethnic groups at some SNPs (Caucasians and Africans differed at 3 of the 18 shared SNPs, and Caucasians and Asians differed at 13 of the 22 shared SNPs. This genetic differentiation may have an important implication for studying the well-known ethnic differences in the prevalence of obesity and osteoporosis, and complex disorders in general. Conclusion A comparative analysis of the SNP data of the candidate genes obtained in the present study, as well as those retrieved from the public domain, suggests that the databases may currently have serious limitations for studying complex disorders with an ethnic-dependent background due to the incomplete and uneven representation of the candidate SNPs in the databases for the major ethnic groups. This conclusion attests to the imperative necessity of large-scale and accurate characterization of these SNPs in different ethnic groups.

  20. Public-private settlement and hospital mortality per sources of payment.

    Science.gov (United States)

    Machado, Juliana Pires; Martins, Mônica; Leite, Iuri da Costa

    2016-07-21

    To analyze if the adjusted hospital mortality varies according to source of payment of hospital admissions, legal nature, and financing settlement of hospitals. Cros-ssectional study with information source in administrative databases. Specific hospital admission reasons were selected considering the volume of hospital admissions and the list of quality indicators proposed by the North-American Agency for Healthcare Research and Quality (AHRQ). Were analyzed 852,864 hospital admissions of adults, occurred in 789 hospitals between 2008 and 2010, in Sao Paulo and Rio Grande do Sul, applying multilevel logistic regression. At hospital admission level, showed higher chances of death male patients in more advanced age groups, with comorbidity, who used intensive care unit, and had the Brazilian Unified Health System as source of payment. At the level of hospitals, in those located in the mean of the distribution, the adjusted probability of death in hospital admissions financed by plan or private was 5.0%, against 9.0% when reimbursed by the Brazilian Unified Health System. This probability increased in hospital admissions financed by the Brazilian Unified Health System in hospitals to two standard deviations above the mean, reaching 29.0%. In addition to structural characteristics of the hospitals and the profile of the patients, interventions aimed at improving care should also consider the coverage of the population by health plans, the network shared between beneficiaries of plans and users of the Brazilian Unified Health System, the standard of care to the various sources of payment by hospitals and, most importantly, how these factors influence the clinical performance. Analisar se a mortalidade hospitalar ajustada varia segundo fonte de pagamento das internações, natureza jurídica e arranjo de financiamento dos hospitais. Estudo observacional transversal com fonte de informações em bases de dados administrativos. Motivos de internação específicos foram

  1. The evolution of Tibetan representation and preferentiality in public employment during the Post-fenpei period in China: Insights from new data sources

    NARCIS (Netherlands)

    A.M. Fischer (Andrew Martín); A. Zenz (Adrian)

    2016-01-01

    textabstractThis paper exploits a new and exciting source of data on public employment recruitment in order to analyse the evolution of Tibetan representation and preferential hiring practices in public employment in all Tibetan areas from 2007 to 2015. Despite the limitations of these data, they pr

  2. Sourcing Strategy and Supply Chain Risk Management in the Healthcare Sector: A Case Study of Malawi¡¯s Public Healthcare Delivery Supply Chain

    OpenAIRE

    Kizito Elijah Kanyoma; James Kamwachale Khomba; Eric James Sankhulani; Rabiya Hanif

    2013-01-01

    The study primarily investigated the role of single sourcing strategy in either exacerbating or mitigating persistent supply failure in Malawi¡¯s public healthcare delivery supply chain. It also investigated the role of the single supplier in recurrent drug stockouts in the country¡¯s public hospitals. The study was conducted at five public healthcare delivery centres in southern Malawi. Data was collected using two sets of self administered questionnaires to, hospital managers and procuremen...

  3. Bias analysis applied to Agricultural Health Study publications to estimate non-random sources of uncertainty

    Directory of Open Access Journals (Sweden)

    Lash Timothy L

    2007-11-01

    Full Text Available Abstract Background The associations of pesticide exposure with disease outcomes are estimated without the benefit of a randomized design. For this reason and others, these studies are susceptible to systematic errors. I analyzed studies of the associations between alachlor and glyphosate exposure and cancer incidence, both derived from the Agricultural Health Study cohort, to quantify the bias and uncertainty potentially attributable to systematic error. Methods For each study, I identified the prominent result and important sources of systematic error that might affect it. I assigned probability distributions to the bias parameters that allow quantification of the bias, drew a value at random from each assigned distribution, and calculated the estimate of effect adjusted for the biases. By repeating the draw and adjustment process over multiple iterations, I generated a frequency distribution of adjusted results, from which I obtained a point estimate and simulation interval. These methods were applied without access to the primary record-level dataset. Results The conventional estimates of effect associating alachlor and glyphosate exposure with cancer incidence were likely biased away from the null and understated the uncertainty by quantifying only random error. For example, the conventional p-value for a test of trend in the alachlor study equaled 0.02, whereas fewer than 20% of the bias analysis iterations yielded a p-value of 0.02 or lower. Similarly, the conventional fully-adjusted result associating glyphosate exposure with multiple myleoma equaled 2.6 with 95% confidence interval of 0.7 to 9.4. The frequency distribution generated by the bias analysis yielded a median hazard ratio equal to 1.5 with 95% simulation interval of 0.4 to 8.9, which was 66% wider than the conventional interval. Conclusion Bias analysis provides a more complete picture of true uncertainty than conventional frequentist statistical analysis accompanied by a

  4. Time-domain analysis of bandgap characteristics of two-dimensional periodic structures by use of a source-model technique.

    Science.gov (United States)

    Ludwig, Alon; Leviatan, Yehuda

    2008-02-01

    We introduce a time-domain source-model technique for analysis of two-dimensional, transverse-magnetic, plane-wave scattering by a photonic crystal slab composed of a finite number of identical layers, each comprising a linear periodic array of dielectric cylinders. The proposed technique takes advantage of the periodicity of the slab by solving the problem within a unit cell of the periodic structure. A spectral analysis of the temporal behavior of the fields scattered by the slab shows a clear agreement between frequency bands where the spectral density of the transmitted energy is low and the bandgaps of the corresponding two-dimensionally infinite periodic structure. The effect of the bandwidth of the incident pulse and its center frequency on the manner it is transmitted through and reflected by the slab is studied via numerical examples.

  5. Spectral-Domain-Based Scattering Analysis of Fields Radiated by Distributed Sources in Planar-Stratified Environments with Arbitrarily Anisotropic Layers

    CERN Document Server

    Sainath, Kamalesh

    2014-01-01

    We discuss the numerically stable computation and extraction of the scattered electromagnetic field excited by distributed sources embedded in planar-layered environments where each layer may exhibit arbitrary and independent electrical and magnetic anisotropic response and loss profiles. Although the scattered field computation appears analytically relatively straightforward, different procedures within the computation chain, if not treated carefully, are inherently susceptible to numerical instabilities and (or) accuracy limitations due to the potential manifestation of numerically overflown and (or) numerically unbalanced terms entering the chain. Therefore, primary emphasis is given to effecting these tasks in a numerically stable and robust manner for all ranges of physical parameters. We validate the results against closed-form solutions and provide a computational efficiency study demonstrating a drastic reduction in computation time realized via the spectral domain (i.e., $k$-space or, equivalently, m...

  6. A UML-based meta-framework for system design in public health informatics.

    Science.gov (United States)

    Orlova, Anna O; Lehmann, Harold

    2002-01-01

    The National Agenda for Public Health Informatics calls for standards in data and knowledge representation within public health, which requires a multi-level framework that links all aspects of public health. The literature of public health informatics and public health informatics application were reviewed. A UML-based systems analysis was performed. Face validity of results was evaluated in analyzing the public health domain of lead poisoning. The core class of the UML-based system of public health is the Public Health Domain, which is associated with multiple Problems, for which Actors provide Perspectives. Actors take Actions that define, generate, utilize and/or evaluate Data Sources. The life cycle of the domain is a sequence of activities attributed to its problems that spirals through multiple iterations and realizations within a domain. The proposed Public Health Informatics Meta-Framework broadens efforts in applying informatics principles to the field of public health

  7. CUAHSI-HIS: an Internet based system to facilitate public discovery, access, and exploration of different water science data sources

    Science.gov (United States)

    Arrigo, J. S.; Hooper, R. P.; Choi, Y.; Ames, D. P.; Kadlec, J.; Whiteaker, T.

    2011-12-01

    "Water is everywhere." This sentiment underscores the importance of instilling hydrologic and earth science literacy in educators, students, and the general public, but also presents challenges for water scientists and educators. Scientific data about water is collected and distributed by several different sources, from federal agencies to scientific investigators to citizen scientists. As competition for limited water resources increase, increasing access to and understanding of the wealth of information about the nation's and the world's water will be critical. The CUAHSI-HIS system is a web based system for sharing hydrologic data that can help address this need. HydroDesktop is a free, open source application for finding, getting, analyzing and using hydrologic data from the CUAHSI-HIS system. It works with HydroCatalog which indexes the data to find out what data exists and where it is, and then it retrieves the data from HydroServers where it is stored communicating using WaterOneFlow web services. Currently, there are over 65 services registered in HydroCatalog providing central discovery of water data from several federal and state agencies, university projects, and other sources. HydroDesktop provides a simplified GIS that allows users to incorporate spatial data, and simple analysis tools to facilitate graphing and visualization. HydroDesktop is designed to be useful for a number of different groups of users with a wide variety of needs and skill levels including university faculty, graduate and undergraduate students, K-12 students, engineering and scientific consultants, and others. This presentation will highlight some of the features of HydroDesktop and the CUAHSI-HIS system that make it particularly appropriate for use in educational and public outreach settings, and will present examples of educational use. The incorporation of "real data," localization to an area of interest, and problem-based learning are all recognized as effective strategies for

  8. An open-source software platform for data management, visualisation, model building and model sharing in water, energy and other resource modelling domains.

    Science.gov (United States)

    Knox, S.; Meier, P.; Mohammed, K.; Korteling, B.; Matrosov, E. S.; Hurford, A.; Huskova, I.; Harou, J. J.; Rosenberg, D. E.; Thilmant, A.; Medellin-Azuara, J.; Wicks, J.

    2015-12-01

    Capacity expansion on resource networks is essential to adapting to economic and population growth and pressures such as climate change. Engineered infrastructure systems such as water, energy, or transport networks require sophisticated and bespoke models to refine management and investment strategies. Successful modeling of such complex systems relies on good data management and advanced methods to visualize and share data.Engineered infrastructure systems are often represented as networks of nodes and links with operating rules describing their interactions. Infrastructure system management and planning can be abstracted to simulating or optimizing new operations and extensions of the network. By separating the data storage of abstract networks from manipulation and modeling we have created a system where infrastructure modeling across various domains is facilitated.We introduce Hydra Platform, a Free Open Source Software designed for analysts and modelers to store, manage and share network topology and data. Hydra Platform is a Python library with a web service layer for remote applications, called Apps, to connect. Apps serve various functions including network or results visualization, data export (e.g. into a proprietary format) or model execution. This Client-Server architecture allows users to manipulate and share centrally stored data. XML templates allow a standardised description of the data structure required for storing network data such that it is compatible with specific models.Hydra Platform represents networks in an abstract way and is therefore not bound to a single modeling domain. It is the Apps that create domain-specific functionality. Using Apps researchers from different domains can incorporate different models within the same network enabling cross-disciplinary modeling while minimizing errors and streamlining data sharing. Separating the Python library from the web layer allows developers to natively expand the software or build web

  9. Isolation and molecular characterization of Acanthamoeba genotypes isolated from soil sources of public and recreational areas in Iran.

    Science.gov (United States)

    Karamati, Seyed Ahmad; Niyyati, Maryam; Lorenzo-Morales, Jacob; Lasjerdi, Zohreh

    2016-12-01

    Pathogenic strains of Acanthamoeba are causative agents of a sight threating infection of the cornea known as Acanthamoeba keratitis. AK cases have been reported in Iran recently due to inappropriate usage of contact lens maintenance and most patients report a contact with contaminated sources such as dust, water or soil. Sixty soil samples were collected from public and recreational areas in the province of East Azerbaijan, Iran and checked for the presence of Acanthamoeba spp. Samples were cultured on non-nutrient agar plates seeded with heat killed Escherichia coli. PCR and sequencing of the DF3 region were carried out in order to genotype the isolated strains of Acanthamoeba. Thermotolerance and osmotolerance assays were performed in order to investigate the pathogenic potential of isolated Acanthamoeba strains. Acanthamoeba spp. was isolated from 41.6% of soil samples and genotyping of the strains resulted in the identification of genotypes T3, T4, T5 and T11. Most of the isolates belonging to genotypes T3 and T4 showed high pathogenic potential, indicating that they might present a potential health hazard for humans and other animals in this region. To the best of our knowledge, this is the first report on the identification of genotypes T3 and T11 from soil sources in the country.

  10. Sources

    OpenAIRE

    2015-01-01

    SOURCES MANUSCRITES Archives nationales Rôles de taille 1768/71 Z1G-344/18 Aulnay Z1G-343a/02 Gennevilliers Z1G-340/01 Ivry Z1G-340/05 Orly Z1G-334c/09 Saint-Remy-lès-Chevreuse Z1G-344/18 Sevran Z1G-340/05 Thiais 1779/80 Z1G-391a/18 Aulnay Z1G-380/02 Gennevilliers Z1G-385/01 Ivry Z1G-387b/05 Orly Z1G-388a/09 Saint-Remy-lès-Chevreuse Z1G-391a/18 Sevran Z1G-387b/05 Thiais 1788/89 Z1G-451/18 Aulnay Z1G-452/21 Chennevières Z1G-443b/02 Gennevilliers Z1G-440a/01 Ivry Z1G-452/17 Noiseau Z1G-445b/05 ...

  11. Uncharacterized conserved motifs outside the HD-Zip domain in HD-Zip subfamily I transcription factors; a potential source of functional diversity

    Directory of Open Access Journals (Sweden)

    Cabello Julieta V

    2011-03-01

    Full Text Available Abstract Background Plant HD-Zip transcription factors are modular proteins in which a homeodomain is associated to a leucine zipper. Of the four subfamilies in which they are divided, the tested members from subfamily I bind in vitro the same pseudopalindromic sequence CAAT(A/TATTG and among them, several exhibit similar expression patterns. However, most experiments in which HD-Zip I proteins were over or ectopically expressed under the control of the constitutive promoter 35S CaMV resulted in transgenic plants with clearly different phenotypes. Aiming to elucidate the structural mechanisms underlying such observation and taking advantage of the increasing information in databases of sequences from diverse plant species, an in silico analysis was performed. In addition, some of the results were also experimentally supported. Results A phylogenetic tree of 178 HD-Zip I proteins together with the sequence conservation presented outside the HD-Zip domains allowed the distinction of six groups of proteins. A motif-discovery approach enabled the recognition of an activation domain in the carboxy-terminal regions (CTRs and some putative regulatory mechanisms acting in the amino-terminal regions (NTRs and CTRs involving sumoylation and phosphorylation. A yeast one-hybrid experiment demonstrated that the activation activity of ATHB1, a member of one of the groups, is located in its CTR. Chimerical constructs were performed combining the HD-Zip domain of one member with the CTR of another and transgenic plants were obtained with these constructs. The phenotype of the chimerical transgenic plants was similar to the observed in transgenic plants bearing the CTR of the donor protein, revealing the importance of this module inside the whole protein. Conclusions The bioinformatical results and the experiments conducted in yeast and transgenic plants strongly suggest that the previously poorly analyzed NTRs and CTRs of HD-Zip I proteins play an important

  12. 网络微博中公共领域与私人领域的融合%The Fusion of the Public Domain and Private Sphere in Network Micro Blog

    Institute of Scientific and Technical Information of China (English)

    石良

    2012-01-01

    It is clarified that based on the public domain and the private sphere,the paper chooses the micro blog as a starting point,takes examples from sociological theory such as discursive power,social role,and opinion leaders,the fusion tendency of the public domain-private sector in the network——the public domain personal and private sector public is clarified.And it is analyzed that based on reality,the effect is brought to the society by fusion of the public or private field.%把微博作为切入点,借鉴话语权、社会角色、意见领袖等社会学理论阐释了网络中公共领域和私人领域融合的趋势——公共领域私人化与私人领域公共化。并且立足现实,分析了公私领域融合给社会带来的现实影响。

  13. A Public Health Nursing Model Assists Women Receiving Temporary Assistance for Needy Families Benefits to Identify a Usual Source of Primary Care.

    Science.gov (United States)

    Cook, Christa L; Hall, Allyson G; Garvan, Cynthia S; Kneipp, Shawn M

    2015-01-01

    Women enrolled in Florida's Temporary Assistance for Needy Families (TANF) program experience high rates of chronic health problems and often lack a usual source of care. Thus, in this study, we aimed to identify variables related to being in a usual source of care at time of study enrollment and determine whether a public health nursing case management intervention affected the obtainment of a usual source of care. To achieve these aims, we conducted a secondary analysis of a randomized controlled trial of a public health nursing case management intervention, which included women with chronic health conditions enrolled in TANF (n = 432). Results indicated 35% of the women did not identify a usual source of care at time of study enrollment, and the public health nursing intervention was effective in helping women obtain a usual source of care (OR = 2.5, 95% CI 1.004-6.491). Thus, a public health nursing case management intervention is an effective way to connect TANF participants to a usual source of care, which may lead to improved health outcomes in this vulnerable population of women.

  14. The first collection of spacecraft-associated microorganisms: a public source for extremotolerant microorganisms from spacecraft assembly clean rooms.

    Science.gov (United States)

    Moissl-Eichinger, Christine; Rettberg, Petra; Pukall, Rüdiger

    2012-11-01

    For several reasons, spacecraft are constructed in so-called clean rooms. Particles could affect the function of spacecraft instruments, and for missions under planetary protection limitations, the biological contamination has to be restricted as much as possible. The proper maintenance of clean rooms includes, for instance, constant control of humidity and temperature, air filtering, and cleaning (disinfection) of the surfaces. The combination of these conditions creates an artificial, extreme biotope for microbial survival specialists: spore formers, autotrophs, multi-resistant, facultative, or even strictly anaerobic microorganisms have been detected in clean room habitats. Based on a diversity study of European and South-American spacecraft assembly clean rooms, the European Space Agency (ESA) has initialized and funded the creation of a public library of microbial isolates. Isolates from three different European clean rooms, as well as from the final assembly and launch facility in Kourou (French Guiana), have been phylogenetically analyzed and were lyophilized for long-term storage at the German Culture Collection facilities in Brunswick, Germany (Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen). The isolates were obtained by either following the standard protocol for the determination of bioburden on, and around, spacecraft or the use of alternative cultivation strategies. Currently, the database contains 298 bacterial strains. Fifty-nine strains are Gram-negative microorganisms, belonging to the α-, β- and γ-Proteobacteria. Representatives of the Gram-positive phyla Actinobacteria, Bacteroidetes/Chlorobi, and Firmicutes were subjected to the collection. Ninety-four isolates (21 different species) of the genus Bacillus were included in the ESA collection. This public collection of extremotolerant microbes, which are adapted to a complicated artificial biotope, provides a wonderful source for industry and research focused on

  15. Replacing the wild type loxP site in BACs from the public domain with lox66 using a lox66 transposon

    Directory of Open Access Journals (Sweden)

    Stennett Naima

    2010-02-01

    Full Text Available Abstract Background Chromatin adjoining the site of integration of a transgene affects expression and renders comparisons of closely related transgenes, such as those derived from a BAC deletion series retrofitted with enhancer-traps, unreliable. Gene targeting to a pre-determined site on the chromosome is likely to alleviate the problem. Findings A general procedure to replace the loxP site located at one end of genomic DNA inserts in BACs with lox66 is described. Truncating insert DNA from the loxP end with a Tn10 transposon carrying a lox66 site simultaneously substitutes the loxP with a lox66 sequence. The replacement occurs with high stringency, and the procedure should be applicable to all BACs in the public domain. Cre recombination of loxP with lox66 or lox71 was found to be as efficient as another loxP site during phage P1 transduction of small plasmids containing those sites. However the end-deletion of insert DNA in BACs using a lox66 transposon occurred at no more than 20% the efficiency observed with a loxP transposon. Differences in the ability of Cre protein available at different stages of the P1 life cycle to recombine identical versus non-identical lox-sites is likely responsible for this discrepancy. A possible mechanism to explain these findings is discussed. Conclusions The loxP/lox66 replacement procedure should allow targeting BACs to a pre-positioned lox71 site in zebrafish chromosomes; a system where homologous recombination-mediated "knock-in" technology is unavailable.

  16. Frustratingly Easy Domain Adaptation

    CERN Document Server

    Daumé, Hal

    2009-01-01

    We describe an approach to domain adaptation that is appropriate exactly in the case when one has enough ``target'' data to do slightly better than just using only ``source'' data. Our approach is incredibly simple, easy to implement as a preprocessing step (10 lines of Perl!) and outperforms state-of-the-art approaches on a range of datasets. Moreover, it is trivially extended to a multi-domain adaptation problem, where one has data from a variety of different domains.

  17. Domain analysis

    DEFF Research Database (Denmark)

    Hjørland, Birger

    2017-01-01

    The domain-analytic approach to knowledge organization (KO) (and to the broader field of library and information science, LIS) is outlined. The article reviews the discussions and proposals on the definition of domains, and provides an example of a domain-analytic study in the field of art studie....... Varieties of domain analysis as well as criticism and controversies are presented and discussed....

  18. The effects of similarity, parasocial identification, and source credibility in obesity public service announcements on diet and exercise self-efficacy.

    Science.gov (United States)

    Phua, Joe

    2016-05-01

    This study examined the effect of the audience's similarity to, and parasocial identification with, spokespersons in obesity public service announcements, on perceived source credibility, and diet and exercise self-efficacy. The results (N = 200) indicated that perceived similarity to the spokesperson was significantly associated with three dimensions of source credibility (competence, trustworthiness, and goodwill), each of which in turn influenced parasocial identification with the spokesperson. Parasocial identification also exerted a positive impact on the audiences' diet and exercise self-efficacy. Additionally, significant differences were found between overweight viewers and non-overweight viewers on perceived similarity, parasocial identification with the spokesperson, and source credibility.

  19. Utilizing Public Access Data and Open Source Statistical Programs to Teach Climate Science to Interdisciplinary Undergraduate Students

    Science.gov (United States)

    Collins, L.

    2014-12-01

    Students in the Environmental Studies major at the University of Southern California fulfill their curriculum requirements by taking a broad range of courses in the social and natural sciences. Climate change is often taught in 1-2 lectures in these courses with limited examination of this complex topic. Several upper division elective courses focus on the science, policy, and social impacts of climate change. In an upper division course focused on the scientific tools used to determine paleoclimate and predict future climate, I have developed a project where students download, manipulate, and analyze data from the National Climatic Data Center. Students are required to download 100 or more years of daily temperature records and use the statistical program R to analyze that data, calculating daily, monthly, and yearly temperature averages along with changes in the number of extreme hot or cold days (≥90˚F and ≤30˚F, respectively). In parallel, they examine population growth, city expansion, and changes in transportation looking for correlations between the social data and trends observed in the temperature data. Students examine trends over time to determine correlations to urban heat island effect. This project exposes students to "real" data, giving them the tools necessary to critically analyze scientific studies without being experts in the field. Utilizing the existing, public, online databases provides almost unlimited, free data. Open source statistical programs provide a cost-free platform for examining the data although some in-class time is required to help students navigate initial data importation and analysis. Results presented will highlight data compiled over three years of course projects.

  20. La apropiación del dominio público y las posibilidades de acceso a los bienes culturales | The appropriation of the public domain and the possibilities of access to cultural goods

    Directory of Open Access Journals (Sweden)

    Joan Ramos Toledano

    2017-06-01

    Full Text Available Resumen: Las normas de propiedad intelectual y copyright prevén un periodo de protección otorgando unos derechos económicos exclusivos y temporales. Pasado un plazo determinado, las obras protegidas entran en lo que se denomina dominio público. Éste suele ser considerado como el momento en el que los bienes culturales pasan a estar bajo el dominio y control de la sociedad en conjunto. El presente trabajo pretende argumentar que, dado nuestro actual sistema económico, en realidad el dominio público funciona más como una posibilidad de negocio para determinadas empresas que como una verdadera opción para que el público pueda acceder a las obras. Abstract: The legislation of continental intellectual property and copyright provide for a period of protection granting exclusive and temporary economic rights. After a certain period, protected works enter into what is called the public domain. This is often considered as the moment in which the cultural goods come under the control and domain of society as a whole. The present paper pretends to argue that, given our current economic system, the public domain actually functions more as a business opportunity for certain companies than as a real option for the public to access artistic and intellectual works.  

  1. Public health costs accounting of inorganic PM2.5 pollution in metropolitan areas of the United States using a risk-based source-receptor model.

    Science.gov (United States)

    Heo, Jinhyok; Adams, Peter J; Gao, H Oliver

    2017-09-01

    In order to design effective strategies to reduce the public health burden of ambient fine particulate matter (PM2.5) imposed in an area, it is necessary to identify the emissions sources affecting that location and quantify their contributions. However, it is challenging because PM2.5 travels long distances and most constituents are the result of complex chemical processes. We developed a reduced-form source-receptor model for estimating locations and magnitudes of downwind health costs from a source or, conversely, the upwind sources that contribute to health costs at a receptor location. Built upon outputs from a state-of-the-art air quality model, our model produces comprehensive risk-based source apportionment results with trivial computational costs. Using the model, we analyzed all the sources contributing to the inorganic PM2.5 health burden in 14 metropolitan statistical areas (MSAs) in the United States. Our analysis for 12 source categories shows that 80-90% of the burden borne by these areas originates from emissions sources outside of the area and that emissions sources up to 800 km away need to be included to account for 80% of the burden. Conversely, 60-80% of the impacts of an MSA's emissions occurs outside of that MSA. The results demonstrate the importance of regionally coordinated measures to improve air quality in metropolitan areas. Copyright © 2017. Published by Elsevier Ltd.

  2. Feature-level domain adaptation

    DEFF Research Database (Denmark)

    Kouw, Wouter M.; Van Der Maaten, Laurens J P; Krijthe, Jesse H.

    2016-01-01

    Domain adaptation is the supervised learning setting in which the training and test data are sampled from different distributions: training data is sampled from a source domain, whilst test data is sampled from a target domain. This paper proposes and studies an approach, called feature...

  3. Integration of Remote Sensing and other public GIS data source to identify suitable zones for groundwater exploitation by manual drilling

    Science.gov (United States)

    Fussi, Fabio; Fava, Francesco; Di Mauro, Biagio; Bonomi, Tullia; Fumagalli, Letizia; DI Leo, Margherita; Hamidou Kane, Cheik; Faye, Gayane; Niang, Magatte; Wade, Souleye; Hamidou, Barry; Colombo, Roberto

    2015-04-01

    In several countries of the world the situation of water supply is still critical, far from the international target defined by United Nations for 2015 (Millenium Development Goals) and producing a huge impact on health and living condition of the population. Manual drilling (it means techniques to drill boreholes for water using human or animal power) is well known and practiced for centuries in many countries. In recent years, it has been considered a potential strategy to increase water access in poor countries and has raised the attention of national governments and international organizations. Manual drilling is applicable only where hydrogeological context is suitable, according to the following conditions: thick layers of unconsolidated sediments and shallow water table. Mapping of zones with suitable hydrogeological context has been carried out in several countries in Africa, but the results have evident limitations; previous methods are based on existing direct data and qualitative experience, leading to unreliable interpretation when direct data are limited. This research aims to develop a methodology to estimate shallow hydrogeological features and asses the distribution of suitable zones for manual drilling through the integration of indirect information obtained from remote sensing and other existing source of data. The research is carried out in two different study areas, in Senegal and Guinea (Western Africa), with semi-arid climate, moderate vegetation cover, unconsolidated sandy and clay deposits overlaying sedimentary and igneous rocks A set of variables have been obtained through processing of three categories of data, listed below: - geology, geomorphology, soil and land cover, obtained from existing thematic maps; - vegetation phenology, apparent thermal inertia, and soil moisture, obtained from analysis of multitemporal optical (MOD13Q1), thermal (MOD11A1), and radar (ASAR) remotely sensed data: -morphometric parameters, obtained from public

  4. The perfect storm of information: combining traditional and non-traditional data sources for public health situational awareness during hurricane response.

    Science.gov (United States)

    Bennett, Kelly J; Olsen, Jennifer M; Harris, Sara; Mekaru, Sumiko; Livinski, Alicia A; Brownstein, John S

    2013-12-16

    Hurricane Isaac made landfall in southeastern Louisiana in late August 2012, resulting in extensive storm surge and inland flooding. As the lead federal agency responsible for medical and public health response and recovery coordination, the Department of Health and Human Services (HHS) must have situational awareness to prepare for and address state and local requests for assistance following hurricanes. Both traditional and non-traditional data have been used to improve situational awareness in fields like disease surveillance and seismology. This study investigated whether non-traditional data (i.e., tweets and news reports) fill a void in traditional data reporting during hurricane response, as well as whether non-traditional data improve the timeliness for reporting identified HHS Essential Elements of Information (EEI). HHS EEIs provided the information collection guidance, and when the information indicated there was a potential public health threat, an event was identified and categorized within the larger scope of overall Hurricane Issac situational awareness. Tweets, news reports, press releases, and federal situation reports during Hurricane Isaac response were analyzed for information about EEIs. Data that pertained to the same EEI were linked together and given a unique event identification number to enable more detailed analysis of source content. Reports of sixteen unique events were examined for types of data sources reporting on the event and timeliness of the reports. Of these sixteen unique events identified, six were reported by only a single data source, four were reported by two data sources, four were reported by three data sources, and two were reported by four or more data sources. For five of the events where news tweets were one of multiple sources of information about an event, the tweet occurred prior to the news report, press release, local government\\emergency management tweet, and federal situation report. In all circumstances where

  5. Ethnic disparities among food sources of energy and nutrients of public health concern and nutrients to limit in adults in the United States: NHANES 2003–2006

    Directory of Open Access Journals (Sweden)

    Carol E. O'Neil

    2014-11-01

    Full Text Available Background: Identification of current food sources of energy and nutrients among US non-Hispanic whites (NHW, non-Hispanic blacks (NHB, and Mexican American (MA adults is needed to help with public health efforts in implementing culturally sensitive and feasible dietary recommendations. Objective: The objective of this study was to determine the food sources of energy and nutrients to limit [saturated fatty acids (SFA, added sugars, and sodium] and nutrients of public health concern (dietary fiber, vitamin D, calcium, and potassium by NHW, NHB, and MA adults. Design: This was a cross-sectional analysis of a nationally representative sample of NWH (n=4,811, NHB (2,062, and MA (n=1,950 adults 19+ years. The 2003–2006 NHANES 24-h recall (Day 1 dietary intake data were analyzed. An updated USDA Dietary Source Nutrient Database was developed using current food composition databases. Food grouping included ingredients from disaggregated mixtures. Mean energy and nutrient intakes from food sources were sample-weighted. Percentages of total dietary intake contributed from food sources were ranked. Results: Multiple differences in intake among ethnic groups were seen for energy and all nutrients examined. For example, energy intake was higher in MA as compared to NHB; SFA, added sugars, and sodium intakes were higher in NHW than NHB; dietary fiber was highest in MA and lowest in NHB; vitamin D was highest in NHW; calcium was lowest in NHB; and potassium was higher in NHW as compared to NHB. Food sources of these nutrients also varied. Conclusion: Identification of intake of nutrients to limit and of public health concern can help health professionals implement appropriate dietary recommendations and plan interventions that are ethnically appropriate.

  6. Timing and sources of granite magmatism in the Ribeira Belt, SE Brazil: Insights from zircon in situ U-Pb dating and Hf isotope geochemistry in granites from the São Roque Domain

    Science.gov (United States)

    Janasi, Valdecir de Assis; Andrade, Sandra; Vasconcellos, Antonio Carlos B. C.; Henrique-Pinto, Renato; Ulbrich, Horstpeter H. G. J.

    2016-07-01

    Eight new in situ U-Pb zircon age determinations by SHRIMP and LA-MC-ICPMS reveal that the main granitic magmatism in the São Roque Domain, which is largely dominated by metaluminous high-K calc-alkaline monzogranites with subordinate peraluminous leucogranites, occurred between 604 ± 3 and 590 ± 4 Ma. This small temporal range is ca. 20-30 Ma younger than previously admitted based on U-Pb TIMS dates from literature, some of which obtained in the same occurrences now dated. The observed discrepancy seems related to the presence of small Paleoproterozoic inherited cores in part of the zircon populations used for TIMS multigrain dating, which could also respond for the unusually high (up to 10 Ma) uncertainty associated with most of these dates. The younger age range now identified for the São Roque granite magmatism has important implications for the evolution of the Ribeira Fold Belt. Whilst previously admitted ages ca. 620-630 Ma substantiated correlations with the widespread and intensely foliated high-K calc-alkaline granitoid rocks of the neighbor Socorro-Guaxupé Nappe (potentially associated with an accretionary continental margin), the ˜600-590 Ma interval seems more consistent with a late deformation tectonic setting. Strongly negative ɛHf(t) characterize the magmatic zircons from the São Roque Domain granites. An eastward increase from -22 in the São Roque Granite to -11 in the Cantareira Granite and neighboring stocks suggests an across-domain shift in granite sources. Such eastward younging of sources, also indicated by Sm-Nd isotope data from granites and supracrustal sequences in neighboring domains, is suggestive that some of the first-order limits and discontinuities in this belt are not defined by the strike-slip fault systems traditionally taken to separate distinct domains. Although the negative ɛHf(t) and ɛNd(t) indicate sources with long crustal residence for all studied granite plutons, the observed range is more radiogenic than the

  7. Domains of quality of life: Results of a three-stage Delphi consensus-procedure amongst patients, family of patients, clinicians, scientists and the general public

    NARCIS (Netherlands)

    Pietersma, S.; de Vries, M.; Akker van den, M.E.

    2014-01-01

    Purpose Our key objective is to identify the core domains of health-related quality of life (QoL). Health-related QoL utility scales are commonly used in economic evaluations to assess the effectiveness of health-care interventions. However, health-care interventions are likely to affect QoL in a

  8. Underdetermined DOA estimation and blind separation of non-disjoint sources in time-frequency domain based on sparse representation method

    Institute of Scientific and Technical Information of China (English)

    Xiang Wang; Zhitao Huang; Yiyu Zhou

    2014-01-01

    This paper deals with the blind separation of nonstation-ary sources and direction-of-arrival (DOA) estimation in the under-determined case, when there are more sources than sensors. We assume the sources to be time-frequency (TF) disjoint to a certain extent. In particular, the number of sources presented at any TF neighborhood is strictly less than that of sensors. We can identify the real number of active sources and achieve separation in any TF neighborhood by the sparse representation method. Compared with the subspace-based algorithm under the same sparseness assumption, which suffers from the extra noise effect since it can-not estimate the true number of active sources, the proposed algorithm can estimate the number of active sources and their cor-responding TF values in any TF neighborhood simultaneously. An-other contribution of this paper is a new estimation procedure for the DOA of sources in the underdetermined case, which combines the TF sparseness of sources and the clustering technique. Sim-ulation results demonstrate the validity and high performance of the proposed algorithm in both blind source separation (BSS) and DOA estimation.

  9. Opening of energy markets: consequences on the missions of public utility and of security of supplies in the domain of electric power and gas; Ouverture des marches energetiques: consequences sur les missions de service public et de securite d'approvisionnement pour l'electricite et le gaz

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    This conference was jointly organized by the International Energy Agency (IEA) and the French ministry of economy, finances, and industry (general direction of energy and raw materials, DGEMP). It was organized in 6 sessions dealing with: 1 - the public utility in the domain of energy: definition of the public utility missions, experience feedback about liberalized markets, public utility obligation and pricing regulation; 2 - the new US energy policy and the lessons learnt from the California crisis; 3 - the security of electric power supplies: concepts of security of supplies, opinion of operators, security of power supplies versus liberalization and investments; 4 - security of gas supplies: markets liberalization and investments, long-term contracts and security of supplies; 5 - debate: how to integrate the objectives of public utility and of security of supplies in a competing market; 6 - conclusions. This document brings together the available talks and transparencies presented at the conference. (J.S.)

  10. Current Business Information Sources at the Wright State University Library and the Dayton and Montgomery County Public Library.

    Science.gov (United States)

    Jarrell, Howard R., Comp.; McCarthy, Pamela, Comp.

    This bibliography provides nearly 400 governmental and privately published business information sources including LC call numbers. Categories and subjects represented are bibliographies, periodical directories, abstracts and indexes, dictionaries and encyclopedias, specialized handbooks, biographical directories, industrial directories,…

  11. Current Business Information Sources at the Wright State University Library and the Dayton and Montgomery County Public Library.

    Science.gov (United States)

    Jarrell, Howard R., Comp.; McCarthy, Pamela, Comp.

    This bibliography provides nearly 400 governmental and privately published business information sources including LC call numbers. Categories and subjects represented are bibliographies, periodical directories, abstracts and indexes, dictionaries and encyclopedias, specialized handbooks, biographical directories, industrial directories,…

  12. Public Library Internet Services and the Digital Divide: The Role and Impacts from Selected External Funding Sources.

    Science.gov (United States)

    McClure, Charles R.; Ryan, Joe; Bertot, John Carlo

    This study examines the role of external funding in the development of public library network resources and services, their identification, and their benefit and impact, particularly as they affect the digital divide. The study was conducted between February 2001 and January 2002, employing a range of data collection techniques, including site…

  13. Integrating and rationalizing public healthcare services as a source of cost containment in times of economic crises.

    Science.gov (United States)

    Pettoello-Mantovani, Massimo; Namazova-Baranova, Leyla; Ehrich, Jochen

    2016-02-24

    Serious concern has been raised about the sustainability of public health care systems of European Nations and ultimately about the health of European citizens, as a result of the economic crisis that has distressed Europe since 2008. The severe economic crisis of the Euro zone, which is still afflicting Europe in 2016, has in fact threatened to equally impact public health services of nations presenting either a weak or a strong domestic growth. On behalf of the European Paediatric Association, the Union of National European Societies and Associations, the authors of the Commentary debates the relationship between the effects of economic instability and health, through the report on an article recently published in the Italian Journal of Pediatrics, which emphasized the importance of integrating existing public health care services, otherwise independently provided by public hospitals, and Primary Care Paediatric networks. The interconnections between the effects of economic instability and health are briefly commented, following the observation that these two factors are not yet fully understood, and that the definition of proper solutions to be applied in circumstances, where health is negatively impacted by periods of economic distress, is still open for discussion. Furthermore it is noted that the pressure to "deliver more for less" often seems to be the driving force forging the political strategic decisions in the area of pediatric healthcare, rather than social, cultural, and economic sensitivity and competences. Thus, the delivery of appropriate pediatric healthcare seems not to be related exclusively to motivations aimed to the benefit of children, but more often to other intervening factors, including economic, and political rationales. The conclusions emphasize that local European experiences suggest that positive and cost effective healthcare programs are possible, and they could serve as a model in the development of effective cross-border regional

  14. The drawbacks of legislative control in procurement of energy sources and municipal services for public funds in Ukraine

    Directory of Open Access Journals (Sweden)

    Halushchak, Mykhaylo

    2012-05-01

    Full Text Available In the article the problems caused by legislative gaps and contradictions in control of procurement of goods, works and natural monopolies` services for public funds is analyzed. It is also shown that efforts of several state structures to solve evident drawbacks within their commission are unsuccessful. In order to solve the problem a package approach is suggested. The first step of this approach is adoption of earlier foreknown special laws.

  15. Public-key Encryption Based on Extending Discrete Chebyshev Polynomials' Definition Domain to Real Number%基于实数域扩散离散Chebyshev多项式的公钥加密算法

    Institute of Scientific and Technical Information of China (English)

    陈宇; 韦鹏程

    2011-01-01

    将Chebyshev多项式与模运算相结合,对其定义在实数域上进行了扩展,经过理论验证和数据分析,总结出实数域多项式应用于公钥密码的一些性质.利用RSA公钥算法和EIGamal公钥算法的算法结构,提出基于有限域离散Chebyshev多项式的公钥密码算法.该算法结构类似于RSA算法,其安全性基于大数因式分解的难度或者与El-Gamal的离散对数难度相当,能够抵抗对于RSA的选择密文攻击,并且易于软件实现.%By combining Chebyshev polynomials with modulus compute,extending Chebyshev polynomials' definition domain to real number, some conclusions were drawn by theoretic verification and data analysis. Making use of the framework of the traditional public-key algorithm RSA and ElGamal, proposed a chaotic public-key encryption algorithm based on extending discrete Chebyshev polynomials' definition domain to Real number. Its security is based on the intractability of the integer factorization problem as RSA,and it is able to resist the chosen cipher-text attack against RSA and easy to be implemented.

  16. Assessing the Differences in Public Health Impact of Salmonella Subtypes Using a Bayesian Microbial Subtyping Approach for Source Attribution

    DEFF Research Database (Denmark)

    Pires, Sara Monteiro; Hald, Tine

    2010-01-01

    Salmonella is a major cause of human gastroenteritis worldwide. To prioritize interventions and assess the effectiveness of efforts to reduce illness, it is important to attribute salmonellosis to the responsible sources. Studies have suggested that some Salmonella subtypes have a higher health...

  17. Delivery of Forecasted Atmospheric Ozone and Dust for the New Mexico Environmental Public Health Tracking System - An Open Source Geospatial Solution

    Science.gov (United States)

    Hudspeth, W. B.; Sanchez-Silva, R.; Cavner, J. A.

    2010-12-01

    New Mexico's Environmental Public Health Tracking System (EPHTS), funded by the Centers for Disease Control (CDC) Environmental Public Health Tracking Network (EPHTN), aims to improve health awareness and services by linking health effects data with levels and frequency of environmental exposure. As a public health decision-support system, EPHTS systems include: state-of-the-art statistical analysis tools; geospatial visualization tools; data discovery, extraction, and delivery tools; and environmental/public health linkage information. As part of its mandate, EPHTS issues public health advisories and forecasts of environmental conditions that have consequences for human health. Through a NASA-funded partnership between the University of New Mexico and the University of Arizona, NASA Earth Science results are fused into two existing models (the Dust Regional Atmospheric Model (DREAM) and the Community Multiscale Air Quality (CMAQ) model) in order to improve forecasts of atmospheric dust, ozone, and aerosols. The results and products derived from the outputs of these models are made available to an Open Source mapping component of the New Mexico EPHTS. In particular, these products are integrated into a Django content management system using GeoDjango, GeoAlchemy, and other OGC-compliant geospatial libraries written in the Python and C++ programming languages. Capabilities of the resultant mapping system include indicator-based thematic mapping, data delivery, and analytical capabilities. DREAM and CMAQ outputs can be inspected, via REST calls, through temporal and spatial subsetting of the atmospheric concentration data across analytical units employed by the public health community. This paper describes details of the architecture and integration of NASA Earth Science into the EPHTS decision-support system.

  18. Building Ontologies for Cross-domain Recommendation on Facial Skin Problem and Related Cosmetics

    Directory of Open Access Journals (Sweden)

    Hla Hla Moe

    2014-05-01

    Full Text Available Nowadays, recommendation has become an everyday activity in the World Wide Web. An increasing amount of work has been published in various areas related to the recommender system. Cross-domain recommendation is an emerging research topic. This type of recommendations has barely been investigated because it is difficult to obtain public datasets with user preferences crossing different domains. To solve dataset problem, one of the solution is to create different domains. Ontology is playing increasingly important roles in many research areas such as semantics interoperability and knowledge base and creating domain. Ontology defines a common vocabulary and a shared understanding and is applied for real world applications. Ontology is a formal representation of a set of concepts within a domain and the relationships between those concepts. This paper presents an approach for building ontologies using Taxonomic conversational case-based reasoning (Taxonomic CCBR to apply cross-domain recommendation based on facial skin problems and related cosmetics. For linking cross-domain recommendation, Ford-Fulkerson algorithm is used to build the bridge of the concepts between two domain ontologies (Problems domain as the source domain and Cosmetics domain as the target domain.

  19. Sources of traffic and visitors' preferences regarding online public reports of quality: web analytics and online survey results.

    Science.gov (United States)

    Bardach, Naomi S; Hibbard, Judith H; Greaves, Felix; Dudley, R Adams

    2015-05-01

    In the context of the Affordable Care Act, there is extensive emphasis on making provider quality transparent and publicly available. Online public reports of quality exist, but little is known about how visitors find reports or about their purpose in visiting. To address this gap, we gathered website analytics data from a national group of online public reports of hospital or physician quality and surveyed real-time visitors to those websites. Websites were recruited from a national group of online public reports of hospital or physician quality. Analytics data were gathered from each website: number of unique visitors, method of arrival for each unique visitor, and search terms resulting in visits. Depending on the website, a survey invitation was launched for unique visitors on landing pages or on pages with quality information. Survey topics included type of respondent (eg, consumer, health care professional), purpose of visit, areas of interest, website experience, and demographics. There were 116,657 unique visitors to the 18 participating websites (1440 unique visitors/month per website), with most unique visitors arriving through search (63.95%, 74,606/116,657). Websites with a higher percent of traffic from search engines garnered more unique visitors (P=.001). The most common search terms were for individual hospitals (23.25%, 27,122/74,606) and website names (19.43%, 22,672/74,606); medical condition terms were uncommon (0.81%, 605/74,606). Survey view rate was 42.48% (49,560/116,657 invited) resulting in 1755 respondents (participation rate=3.6%). There were substantial proportions of consumer (48.43%, 850/1755) and health care professional respondents (31.39%, 551/1755). Across websites, proportions of consumer (21%-71%) and health care professional respondents (16%-48%) varied. Consumers were frequently interested in using the information to choose providers or assess the quality of their provider (52.7%, 225/427); the majority of those choosing a

  20. Predictors of Biased Self-perception in Individuals with High Social Anxiety: The Effect of Self-consciousness in the Private and Public Self Domains.

    Science.gov (United States)

    Nordahl, Henrik; Plummer, Alice; Wells, Adrian

    2017-01-01

    "Biased self-perception," the tendency to perceive one's social performance as more negative than observers do, is characteristic of socially anxious individuals. Self-attention processes are hypothesised to underlie biased self-perception, however, different models emphasise different aspects of self-attention, with attention to the public aspects of the self being prominent. The current study aimed to investigate the relative contribution of two types of dispositional self-attention; public- and private self-consciousness to biased self-perception in a high (n = 48) versus a low (n = 48) social anxiety group undergoing an interaction task. The main finding was that private self-consciousness explained substantial and unique variance in biased negative self-perception in individuals with high social anxiety, while public self-consciousness did not. This relationship was independent of increments in state anxiety. Private self-consciousness appeared to have a specific association with bias related to overestimation of negative social performance rather than underestimation of positive social performance. The implication of this finding is that current treatment models of Social anxiety disorder might include broader aspects of self-focused attention, especially in the context of formulating self-evaluation biases.

  1. Predictors of Biased Self-perception in Individuals with High Social Anxiety: The Effect of Self-consciousness in the Private and Public Self Domains

    Directory of Open Access Journals (Sweden)

    Henrik Nordahl

    2017-07-01

    Full Text Available “Biased self-perception,” the tendency to perceive one’s social performance as more negative than observers do, is characteristic of socially anxious individuals. Self-attention processes are hypothesised to underlie biased self-perception, however, different models emphasise different aspects of self-attention, with attention to the public aspects of the self being prominent. The current study aimed to investigate the relative contribution of two types of dispositional self-attention; public- and private self-consciousness to biased self-perception in a high (n = 48 versus a low (n = 48 social anxiety group undergoing an interaction task. The main finding was that private self-consciousness explained substantial and unique variance in biased negative self-perception in individuals with high social anxiety, while public self-consciousness did not. This relationship was independent of increments in state anxiety. Private self-consciousness appeared to have a specific association with bias related to overestimation of negative social performance rather than underestimation of positive social performance. The implication of this finding is that current treatment models of Social anxiety disorder might include broader aspects of self-focused attention, especially in the context of formulating self-evaluation biases.

  2. Public perceptions of the response to the Deepwater Horizon oil spill: personal experiences, information sources, and social context.

    Science.gov (United States)

    Safford, Thomas G; Ulrich, Jessica D; Hamilton, Lawrence C

    2012-12-30

    The 2010 British Petroleum (BP) Deepwater Horizon oil spill highlighted long-standing questions about energy exploration and its social and environmental implications. Sociologists studying environmental disasters have documented the social impacts resulting from these events and dissatisfaction with government and industry responses. In this paper, we use data from a survey conducted during the Gulf of Mexico oil spill to examine how Louisiana and Florida residents' social backgrounds, experiences with the spill, and trust in information sources predict their perceptions of governmental and BP response efforts. We find that direct personal impacts and compensation strongly influence the evaluations of responding organizations. Age and place of residence also predict such assessments. Finally, levels of confidence in television news and BP as sources of information appear to shape Gulf Coast residents' opinions about the work of organizations responding to the Deepwater Horizon disaster.

  3. L'apprentissage des langues médiatisé par les technologies (ALMT – Étude d'un domaine de recherche émergent à travers les publications de la revue Alsic Technology-mediated language learning: an emergent research domain under study through the review of a French scientific journal's publications

    Directory of Open Access Journals (Sweden)

    Nicolas Guichon

    2012-11-01

    Full Text Available Dans cette étude, il est postulé que l'apprentissage des langues médiatisé par les technologies (ALMT est un domaine de recherche qui s'intéresse au développement et à l'intégration des technologies dans l'enseignement-apprentissage d'une langue. Ce domaine étant émergent, la présente recherche vise tout d'abord à comprendre comment s'est formée la communauté de chercheurs autour de cet objet. Puis, à travers l'analyse critique de 79 articles publiés dans la revue en ligne francophone Alsic entre 1998 et 2010, la présente contribution s'emploie à définir les contours épistémologiques de ce domaine en étudiant les moyens de production de connaissance.In this study, it is postulated that technology mediated language learning is a research domain that focuses on the design and integration of technologies for language learning and teaching. Because this domain is emergent, the present study first aims at understanding how a community of researchers has developed around this object. Then, thanks to the critical analysis of 79 articles published in Alsic, a French-speaking online journal, the present article endeavours to define the epistemological contours of this research domain by studying the means employed to produce knowledge.

  4. Communicating Uncertain Science to the Public: How Amount and Source of Uncertainty Impact Fatalism, Backlash, and Overload.

    Science.gov (United States)

    Jensen, Jakob D; Pokharel, Manusheela; Scherr, Courtney L; King, Andy J; Brown, Natasha; Jones, Christina

    2017-01-01

    Public dissemination of scientific research often focuses on the finding (e.g., nanobombs kill lung cancer) rather than the uncertainty/limitations (e.g., in mice). Adults (n = 880) participated in an experiment where they read a manipulated news report about cancer research (a) that contained either low or high uncertainty (b) that was attributed to the scientists responsible for the research (disclosure condition) or an unaffiliated scientist (dueling condition). Compared to the dueling condition, the disclosure condition triggered less prevention-focused cancer fatalism and nutritional backlash. © 2016 Society for Risk Analysis.

  5. Striped domains of coarse-grained magnetite observed by X-ray photoemission electron microscopy as a source of the high remanence of granites in the Vredefort dome

    Directory of Open Access Journals (Sweden)

    Hiroto eKubo

    2015-06-01

    Full Text Available The characteristics of a coarse-grained high-remanence magnetite obtained from shocked Vredefort granite were investigated by X-ray magnetic circular dichroism (XMCD analysis and X-ray absorption spectroscopy (XAS. The study utilized a spectroscopic photoelectron low-energy electron emission microscope (SPELEEM and was conducted in the SPring-8 large-synchrotron radiation facility. It is generally believed that the strong and stable bulk remanence of Vredefort granites is due to the presence of minerals that have been strongly magnetized by either an impact-generated magnetic field or terrestrial lightning strikes. Although coarse-grained magnetite is traditionally characterized by weak coercivity and remanence, the specimen used in the present study exhibited high coercivity and an intense remanent magnetization. The presence of hematite lamellae observed on the partially oxidized magnetite specimen indicated an array of striped domains, intensifying a remanence and coercivity. We also conducted XAS and XMCD analyses on a natural lodestone permanent magnet produced by lightning strikes; while maghemite was found to be present, no magnetic domain structures were observed. Considering that the nucleation of hematite lamellae on magnetite/maghemite grains is due to high-temperature oxidation, we attribute the intense remanent magnetization and magnetic hardening of Vredefort granites to post-impact hydrothermal activity.

  6. Distribution and sources of surfzone bacteria at Huntington Beach before and after disinfection on an ocean outfall - A frequency-domain analysis

    Science.gov (United States)

    Noble, M.A.; Xu, J. P.; Robertson, G.L.; Rosenfeld, L.K.

    2006-01-01

    Fecal indicator bacteria (FIB) were measured approximately 5 days a week in ankle-depth water at 19 surfzone stations along Huntington Beach and Newport Beach, California, from 1998 to the end of 2003. These sampling periods span the time before and after treated sewage effluent, discharged into the coastal ocean from the local outfall, was disinfected. Bacterial samples were also taken in the vicinity of the outfall during the pre- and post-disinfection periods. Our analysis of the results from both data sets suggest that land-based sources, rather than the local outfall, were the source of the FIB responsible for the frequent closures and postings of local beaches in the summers of 2001 and 2002. Because the annual cycle is the dominant frequency in the fecal and total coliform data sets at most sampling stations, we infer that sources associated with local runoff were responsible for the majority of coliform contamination along wide stretches of the beach. The dominant fortnightly cycle in enterococci at many surfzone sampling stations suggests that the source for these relatively frequent bacteria contamination events in summer is related to the wetting and draining of the land due to the large tidal excursions found during spring tides. Along the most frequently closed section of the beach at stations 3N-15N, the fortnightly cycle is dominant in all FIBs. The strikingly different spatial and spectral patterns found in coliform and in enterococci suggest the presence of different sources, at least for large sections of beach. The presence of a relatively large enterococci fortnightly cycle along the beaches near Newport Harbor indicates that contamination sources similar to those found off Huntington Beach are present, though not at high enough levels to close the Newport beaches. ?? 2006 Elsevier Ltd. All rights reserved.

  7. Theoretical and Methodological Aspects of Optimization of Relationship between Economic Potential and Sources for Public Needs Settlement

    Directory of Open Access Journals (Sweden)

    Stojanović Aleksandar

    2016-06-01

    Full Text Available The relative level of fiscal revenue in relation to the total aggregate domestic product or national income is a central indicator to be established in the national economy. This indicator is the “tax ratio”. The tendency of almost every economic and especially fiscal policy is that this indicator expresses the optimal ratio between the part of the domestic product or national income, which is intended to be used for the settlement of public needs and the general economic aggregate of the latter economic categories. Its special importance lies in the design concept of medium-term or long-term social and economic development. It is necessary to determine the framework of the global distribution of the domestic product or national income, which is acceptable, on the one hand, from the perspective of a balanced and stable economic growth, and on the other hand, from the standpoint of balancing interests of all social structures of modern mixed societies.

  8. Microbiological and chemical quality of ground water used as a source of public supply in southern Missouri : Phase II, April-July, 1998

    Science.gov (United States)

    Femmer, Suzanne R.

    2000-01-01

    The protection of public health through quality public ground-water systems is the responsibility of the U. S. Environmental Protection Agency and the State of Missouri, through the Missouri Department of Natural Resources, Public Drinking Water Program. Approximately 95 percent of the public-water supplies in Missouri use ground water as their source of drinking water through more than 3,700 public wells. Karst terrain, intensive agricultural operations, extensive numbers of on-site sewage systems, and poor well construction can lead to chemical and microbiological contamination of the contributing aquifers. Sitespecific studies and routine regulatory monitoring have produced information on the overall quality and potability of the State's public-drinking-water supplies, but little is known about the presence of viruses. The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, sampled 109 public-water supplies to characterize the physical, chemical, bacterial, and viral conditions in southern Missouri. During April to July 1998, these wells were sampled for nutrients, total organic carbon, optical brighteners, indicator bacteria, enteric viruses, and ribonucleic acid and somatic coli phages. These constituents indicate possible surface contamination of the sampled aquifer. Selection of the wells to be sampled depended on the age of the well (pre-1970), land use, geohydrology, and well construction. None of the physical or chemical constituents measured or analyzed exceeded Missouri's Drinking Water Standards set by the Public Drinking Water Program of the Missouri Department of Natural Resources. The majority of ammonia plus organic nitrogen, nitrite, and phosphorus concentrations were below the laboratory's minimum reporting levels. There were a greater number of detects above the minimum reporting level with respect to the nitrite plus nitrate, ammonia, orthophosphate, and total organic carbon concentrations. Analyses

  9. Hispanic Latin America, Spain and the Spanish-speaking Caribbean: a rich source of reference material for public health, epidemiology and tropical medicine.

    Science.gov (United States)

    Williams, John R; Bórquez, Annick; Basáñez, María-Gloria

    2008-09-30

    There is a multiplicity of journals originating in Spain and the Spanish-speaking countries of Latin America and the Caribbean (SSLAC) in the health sciences of relevance to the fields of epidemiology and public health. While the subject matter of epidemiology in Spain shares many features with its neighbours in Western Europe, many aspects of epidemiology in Latin America are particular to that region. There are also distinctive theoretical and philosophical approaches to the study of epidemiology and public health arising from traditions such as the Latin American social medicine movement, of which there may be limited awareness. A number of online bibliographic databases are available which focus primarily on health sciences literature arising in Spain and Latin America, the most prominent being Literatura Latinoamericana en Ciencias de la Salud (LILACS) and LATINDEX. Some such as LILACS also extensively index grey literature. As well as in Spanish, interfaces are provided in English and Portuguese. Abstracts of articles may also be provided in English with an increasing number of journals beginning to publish entire articles written in English. Free full text articles are becoming accessible, one of the most comprehensive sources being the Scientific Electronic Library Online (SciELO). There is thus an extensive range of literature originating in Spain and SSLAC freely identifiable and often accessible online, and with the potential to provide useful inputs to the study of epidemiology and public health provided that any reluctance to explore these resources can be overcome. In this article we provide an introduction to such resources.

  10. Web portal for dynamic creation and publication of teaching materials in multiple formats from a single source representation

    Science.gov (United States)

    Roganov, E. A.; Roganova, N. A.; Aleksandrov, A. I.; Ukolova, A. V.

    2017-01-01

    We implement a web portal which dynamically creates documents in more than 30 different formats including html, pdf and docx from a single original material source. It is obtained by using a number of free software such as Markdown (markup language), Pandoc (document converter), MathJax (library to display mathematical notation in web browsers), framework Ruby on Rails. The portal enables the creation of documents with a high quality visualization of mathematical formulas, is compatible with a mobile device and allows one to search documents by text or formula fragments. Moreover, it gives professors the ability to develop the latest technology educational materials, without qualified technicians' assistance, thus improving the quality of the whole educational process.

  11. “It’s Only a Pastime, Really”: Young People’s Experiences of Social Media as a Source of News about Public Affairs

    Directory of Open Access Journals (Sweden)

    Malin Sveningsson

    2015-09-01

    Full Text Available Western democracies have seen a decreased participation in activities traditionally associated with political participation. One aspect of participating politically is to keep up-to-date with what happens in society, for example, by following the news. Here, youth have been found to be less active than older generations. The decline in young people’s consumption of news media does not necessarily mean that they are disinterested in news or politics; they may get their information from other sources, for example, social media. Using a qualitative multi-method approach, this article investigates how young people who are interested in civic and political issues, and who regularly access news from various sources, experience and understand, specifically, Facebook and Twitter as sources of news about public affairs. The participants appreciated the immediateness of social media news, and felt that it could provide insights into new perspectives and make news stories feel more relevant. However, it was also experienced as one-sided, fragmented, and subjective, giving a biased, or even false, image of what happens in society. The consumption of news was strongly related to the idea of being a “good” citizen. However, since the participants did not regard social media news as “real news,” their image of themselves as citizens suffered. If young people in general resemble our participants in this respect, research that asks about their news consumption runs a risk of getting answers that underestimate it, thus reinforcing the idea that young people are less interested and informed about public affairs than is actually the case.

  12. Possible source term of high concentrations of mecoprop-p in leachate and water quality: impact of climate change, public use and disposal.

    Science.gov (United States)

    Idowu, I A; Alkhaddar, R M; Atherton, W

    2014-08-01

    Mecoprop-p herbicide is often found in wells and water abstractions in many areas around Europe, the UK inclusive. There is a growing environmental and public health concern about mecoprop-p herbicide pollution in ground and surface water in England. Reviews suggest that extensive work has been carried out on the contribution of mecoprop-p herbicides from agricultural use whilst more work needs to be carried out on the contribution of mecoprop-p herbicide from non-agricultural use. The study covers two landfill sites in Weaver/Gowy Catchment. Mecoprop-p herbicide concentrations in the leachate quality range between 0.06 and 290 microg l1 in cells. High concentration ofmecoprop-p herbicide in the leachate quality suggests that there is a possible source term in the waste stream. This paper addresses the gap by exploring possible source terms of mecoprop-p herbicide contamination on landfill sites and evaluates the impact of public purchase, use and disposal alongside climate change on seasonal variations in mecoprop-p concentrations. Mecoprop-p herbicide was found to exceed the EU drinking water quality standards at the unsaturated zone/aquifer with observed average concentrations ranging between 0.005 and 7.96 microg l1. A route map for mecoprop-p herbicide source term contamination is essential for mitigation and pollution management with emphasis on both consumer and producer responsibility towards use of mecoprop-p product. In addition, improvement in data collection on mecoprop-p concentrations and detailed seasonal herbicide sales for non-agricultural purposes are needed to inform the analysis and decision process.

  13. 一种DNS数据源的获取与分析方法%A Method of Acquisition and Analysing the Data Source of Domain Name Service

    Institute of Scientific and Technical Information of China (English)

    高斐; 高永仁

    2012-01-01

    Due to the reality of being lack of multi-source and comprehensiveness for collection and analysis of the data source of DNS, the paper used the inherent characteristics of DNS in the classification and acquisition of its attribute and the study yielded mutability of DNS. The experimental results show that the data source can effectively respond to the polymorphism changes of DNS, and it provids the reference for predicting the basis situation changes for senior administrators.%针对目前DNS服务数据源的采集和分析缺少多源性和全面性的现实,利用DNS服务固有的协议特征模式对其属性进行分类获取及研究得出DNS服务的异变性。实验结果证明该数据源能够有效的反映DNS服务变化的多态性,为上层管理员预测DNS服务态势变化提供依据。

  14. Performance improvement by a broadband super-luminescent diode light source in 1.7-μm spectroscopic spectral-domain optical coherence tomography for lipid distribution imaging in a coronary artery

    Science.gov (United States)

    Tanaka, M.; Okuno, T.; Obi, H.; Hattori, I.; Hirano, M.; Ueno, T.; Tonosaki, S.; Murashima, K.; Yamaguchi, R.; Hasegawa, T.

    2014-03-01

    We develop a 1.7-μm optical coherence tomography (OCT) system using a broadband light source based on superluminescent diodes (SLDs) and investigated the possibility of plaque detection by a spectroscopic OCT (S-OCT) method. The SLD-based light source realizes an output power about 20mW and a 3-dB bandwidth over 120nm for optimization of driving current in each SLD. Regarding performance of the 1.7-μm spectral-domain OCT system with the light source, the system sensitivity is 104dB in maximum at the A-scan rate of 47kHz, which is fifty times as high as that in the previous study with a super-continuum light source. Moreover, we perform visualization of lipid distribution at the A-scan frame of 47kHz by an in-vitro artery model which is made of a piece of porcine coronary artery and a lardfilled nylon tube as a plaque phantom. We confirm that the sensitivity and specificity between artery and plaque area in optimal condition for lipid detection at a specific frame image is over 90% and there are high lipid scores at the inside of plaque phantom in other frame images at the same condition. It indicates the possibility of plaque detection in intravascular OCT.

  15. Student assessment of teaching as a source of information about aspects of teaching quality in multiple subject domains: an application of multilevel bifactor structural equation modeling.

    Science.gov (United States)

    Scherer, Ronny; Gustafsson, Jan-Eric

    2015-01-01

    Research on educational effectiveness most often uses student assessments of classroom instruction for measuring aspects of teaching quality. Given that crucial inferences on the success of education are based on these assessments, it is essential to ensure that they provide valid indicators. In this study, we illustrate the application of an innovative application of a multilevel bifactor structural equation model (ML-BFSEM) to examine the validity of student assessments. Analyzing a large-scale data set of 12,077 fourth-grade students in three countries (Finland, Norway, and Sweden), we find that (i) three aspects of teaching quality and subject domain factors can be established; (ii) metric and scalar invariance could be established for the ML-BFSEM approach across countries; and (iii) significant relations between students' assessments of how easy the teacher is to understand and achievement in all subjects exist. In support of substantive research, we demonstrate a methodological approach for representing the complex nature of student assessments of teaching quality. We finally encourage substantive and methodological researchers to advance the ML-BFSEM.

  16. Trusted Domain

    DEFF Research Database (Denmark)

    Hjorth, Theis Solberg; Torbensen, Rune

    2012-01-01

    that enables secure end-to-end communication with home automation devices, and it supports device revocations as well as a structure of intersecting sets of nodes for scalability. Devices in the Trusted Domain are registered in a list that is distributed using a robust epidemic protocol optimized...

  17. Domain crossing

    DEFF Research Database (Denmark)

    Schraefel, M. C.; Rouncefield, Mark; Kellogg, Wendy

    2012-01-01

    In CSCW, how much do we need to know about another domain/culture before we observe, intersect and intervene with designs. What optimally would that other culture need to know about us? Is this a “how long is a piece of string” question, or an inquiry where we can consider a variety of contexts a...

  18. Análisis de dominio de la revista mexicana Investigación Bibliotecológica Domain analysis by the mexican publication Investigación Bibliotecológica

    Directory of Open Access Journals (Sweden)

    Félix de Moya-Anegón

    2001-12-01

    Full Text Available El análisis de dominio esta compuesto por un conjunto de metodologías que permiten delinear la estructura de relaciones existente en una determinada disciplina. El objetivo del presente trabajo es brindar un análisis de dominio de la disciplina Bibliotecología y Documentación (ByD en México. Para ello se analizará la bibliografía citaa por la revista Investigación Bibliotecológica (IB. Entre los elementos a analizar se encuentran: producción, autoría, coautoría, fuentes citadas y cocitación de revistas.The domain analysis involved a set of methods that show the structure of relations in a specific discipline. The aim of this paper is to provide the domain analysis of Library and Information Science (LIS in México. For that purpose, the bibliography of the Investigación Bibliotecológica (IB journal is analized. We analize the production, autorship, co-autorship, quoted sources, and joint quotation of journals.

  19. Authenticity in Obesity Public Service Announcements: Influence of Spokesperson Type, Viewer Weight, and Source Credibility on Diet, Exercise, Information Seeking, and Electronic Word-of-Mouth Intentions.

    Science.gov (United States)

    Phua, Joe; Tinkham, Spencer

    2016-01-01

    This study examined the joint influence of spokesperson type in obesity public service announcements (PSAs) and viewer weight on diet intention, exercise intention, information seeking, and electronic word-of-mouth (eWoM) intention. Results of a 2 (spokesperson type: real person vs. actor) × 2 (viewer weight: overweight vs. non-overweight) between-subjects experiment indicated that overweight viewers who saw the PSA featuring the real person had the highest diet intention, exercise intention, information seeking, and eWoM intention. Parasocial interaction was also found to mediate the relationships between spokesperson type/viewer weight and two of the dependent variables: diet intention and exercise intention. In addition, viewers who saw the PSA featuring the real person rated the spokesperson as significantly higher on source credibility (trustworthiness, competence, and goodwill) than those who saw the PSA featuring the actor.

  20. Mapping Knowledge Domain on Subject Headings of Public Sentiment Research Based on Multi-dimensional Scaling%基于多维尺度分析的舆情研究主题词知识图谱

    Institute of Scientific and Technical Information of China (English)

    孙艳; 田丽梅

    2016-01-01

    为了对舆情的研究现状进行客观梳理,总结研究文献内在的联系和科学结构,文中选取近5年来中国知网收录的“中文核心期刊”和“CSSCI”相关研究文献展开研究。首先,进行前期数据准备,包括准备的步骤与方法及其相关的数学模型;然后,将相异系数矩阵输入到SPSS中进行多维尺度分析并绘制知识图谱;最后,从维度定义和空间分布特点两个方面对知识图谱进行分析。结果表明,当前舆情研究主要集中于4个方向,舆情直接相关研究是重点与热点,媒体相关的研究领域也较活跃,但一些细分的研究方向成果比较分散。%In order to conduct objective comb for the current situation of public sentiment research and summarize the intrinsic links and science structure of researched literatures,it researches on"Chinese Core Journals" and"CSSCI" relevant research literatures included in CNKI in the past five years in this paper. First,preliminary data should be prepared,comprising the steps and methods of preparation and associated mathematical model. Then,the dissimilarity coefficient matrix is input into SPSS software to carry on multi dimensional scaling and draw mapping knowledge domain. Finally,mapping knowledge domain must be analyzed from two aspects of dimension definition and spatial distribution. The results show that the current public sentiment research has focused on four directions,and direct relevant re-search of public sentiment is the focus and hotspot,and media-related field of study is more active,but some results of research direction of segmentation are more dispersed.

  1. E-SovTox: An online database of the main publicly-available sources of toxicity data concerning REACH-relevant chemicals published in the Russian language.

    Science.gov (United States)

    Sihtmäe, Mariliis; Blinova, Irina; Aruoja, Villem; Dubourguier, Henri-Charles; Legrand, Nicolas; Kahru, Anne

    2010-08-01

    A new open-access online database, E-SovTox, is presented. E-SovTox provides toxicological data for substances relevant to the EU Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) system, from publicly-available Russian language data sources. The database contains information selected mainly from scientific journals published during the Soviet Union era. The main information source for this database - the journal, Gigiena Truda i Professional'nye Zabolevania [Industrial Hygiene and Occupational Diseases], published between 1957 and 1992 - features acute, but also chronic, toxicity data for numerous industrial chemicals, e.g. for rats, mice, guinea-pigs and rabbits. The main goal of the abovementioned toxicity studies was to derive the maximum allowable concentration limits for industrial chemicals in the occupational health settings of the former Soviet Union. Thus, articles featured in the database include mostly data on LD50 values, skin and eye irritation, skin sensitisation and cumulative properties. Currently, the E-SovTox database contains toxicity data selected from more than 500 papers covering more than 600 chemicals. The user is provided with the main toxicity information, as well as abstracts of these papers in Russian and in English (given as provided in the original publication). The search engine allows cross-searching of the database by the name or CAS number of the compound, and the author of the paper. The E-SovTox database can be used as a decision-support tool by researchers and regulators for the hazard assessment of chemical substances.

  2. Source Reduction Behavior as an Independent Measurement of the Impact of a Public Health Education Campaign in an Integrated Vector Management Program for the Asian Tiger Mosquito

    Directory of Open Access Journals (Sweden)

    Daniel Strickman

    2011-05-01

    Full Text Available The goal of this study was to evaluate the effectiveness of a public health educational campaign to reduce backyard mosquito-larval habitats. Three communities each, within two New Jersey counties, were randomly selected to receive: (1 both education and mosquito control, (2 education only, and (3 no education or mosquito control. Four separate educational events included a 5-day elementary school curriculum in the spring, and three door to door distributions of educational brochures. Before and after each educational event, the numbers of mosquito-larval container habitats were counted in 50 randomly selected homes per study area. Container surveys allowed us to measure source reduction behavior. Although we saw reductions in container habitats in sites receiving education, they were not significantly different from the control. Our results suggest that traditional passive means of public education, which were often considered the gold standard for mosquito control programs, are not sufficient to motivate residents to reduce backyard mosquito-larval habitats.

  3. Hispanic Latin America, Spain and the Spanish-speaking Caribbean: A rich source of reference material for public health, epidemiology and tropical medicine

    Science.gov (United States)

    Williams, John R; Bórquez, Annick; Basáñez, María-Gloria

    2008-01-01

    There is a multiplicity of journals originating in Spain and the Spanish-speaking countries of Latin America and the Caribbean (SSLAC) in the health sciences of relevance to the fields of epidemiology and public health. While the subject matter of epidemiology in Spain shares many features with its neighbours in Western Europe, many aspects of epidemiology in Latin America are particular to that region. There are also distinctive theoretical and philosophical approaches to the study of epidemiology and public health arising from traditions such as the Latin American social medicine movement, of which there may be limited awareness. A number of online bibliographic databases are available which focus primarily on health sciences literature arising in Spain and Latin America, the most prominent being Literatura Latinoamericana en Ciencias de la Salud (LILACS) and LATINDEX. Some such as LILACS also extensively index grey literature. As well as in Spanish, interfaces are provided in English and Portuguese. Abstracts of articles may also be provided in English with an increasing number of journals beginning to publish entire articles written in English. Free full text articles are becoming accessible, one of the most comprehensive sources being the Scientific Electronic Library Online (SciELO). There is thus an extensive range of literature originating in Spain and SSLAC freely identifiable and often accessible online, and with the potential to provide useful inputs to the study of epidemiology and public health provided that any reluctance to explore these resources can be overcome. In this article we provide an introduction to such resources. PMID:19243576

  4. Hispanic Latin America, Spain and the Spanish-speaking Caribbean: A rich source of reference material for public health, epidemiology and tropical medicine

    Directory of Open Access Journals (Sweden)

    Basáñez María-Gloria

    2008-09-01

    Full Text Available Abstract There is a multiplicity of journals originating in Spain and the Spanish-speaking countries of Latin America and the Caribbean (SSLAC in the health sciences of relevance to the fields of epidemiology and public health. While the subject matter of epidemiology in Spain shares many features with its neighbours in Western Europe, many aspects of epidemiology in Latin America are particular to that region. There are also distinctive theoretical and philosophical approaches to the study of epidemiology and public health arising from traditions such as the Latin American social medicine movement, of which there may be limited awareness. A number of online bibliographic databases are available which focus primarily on health sciences literature arising in Spain and Latin America, the most prominent being Literatura Latinoamericana en Ciencias de la Salud (LILACS and LATINDEX. Some such as LILACS also extensively index grey literature. As well as in Spanish, interfaces are provided in English and Portuguese. Abstracts of articles may also be provided in English with an increasing number of journals beginning to publish entire articles written in English. Free full text articles are becoming accessible, one of the most comprehensive sources being the Scientific Electronic Library Online (SciELO. There is thus an extensive range of literature originating in Spain and SSLAC freely identifiable and often accessible online, and with the potential to provide useful inputs to the study of epidemiology and public health provided that any reluctance to explore these resources can be overcome. In this article we provide an introduction to such resources.

  5. Beyond cross-domain learning: Multiple-domain nonnegative matrix factorization

    KAUST Repository

    Wang, Jim Jing-Yan

    2014-02-01

    Traditional cross-domain learning methods transfer learning from a source domain to a target domain. In this paper, we propose the multiple-domain learning problem for several equally treated domains. The multiple-domain learning problem assumes that samples from different domains have different distributions, but share the same feature and class label spaces. Each domain could be a target domain, while also be a source domain for other domains. A novel multiple-domain representation method is proposed for the multiple-domain learning problem. This method is based on nonnegative matrix factorization (NMF), and tries to learn a basis matrix and coding vectors for samples, so that the domain distribution mismatch among different domains will be reduced under an extended variation of the maximum mean discrepancy (MMD) criterion. The novel algorithm - multiple-domain NMF (MDNMF) - was evaluated on two challenging multiple-domain learning problems - multiple user spam email detection and multiple-domain glioma diagnosis. The effectiveness of the proposed algorithm is experimentally verified. © 2013 Elsevier Ltd. All rights reserved.

  6. An open source web application for the surveillance and prevention of the impacts on public health of extreme meteorological events: the SUPREME system

    Science.gov (United States)

    2011-01-01

    Background Every year, many deaths or health problems are directly linked to heat waves. Consequently, numerous jurisdictions around the world have developed intervention plans that are employed during extreme heat events; beyond their emergency sections, these plans generally include preventive measures to be implemented each year. Over the last five years, local and regional information systems have been implemented in a few Canadian cities for surveillance purposes. However, until recently, no such systems existed at the provincial level. In the context of the Government of Quebec's 2006-2012 Action Plan on Climate Change, a real-time integrated system for the surveillance and monitoring of extreme heat events has been implemented on a provincial level. The system is a component of a broader approach that would also monitor the public health impacts of all types of extreme meteorological events. Results After conducting a detailed needs analysis, the Quebec National Institute for Public Health developed and implemented an integrated web application leveraging open source software for the real-time Surveillance and Prevention of the impacts of Extreme Meteorological Events on public health, called the SUPREME system. Its first field use involved heat waves. This decision-support system is based on open source software and is composed of four modules: (1) data acquisition and integration, (2) risk analysis and alerts, (3), cartographic application, and (4) information dissemination - climate change and health portal. The system is available to health specialists through a secure web information portal and provides access to weather forecasts, historic and real-time indicators (including deaths and hospital admissions), alerts and various cartographic data used for conducting prevention activities and launching emergency measures. Conclusions The SUPREME system was implemented and used during the summer of 2010. It served as an important decision-making tool during

  7. An open source web application for the surveillance and prevention of the impacts on public health of extreme meteorological events: the SUPREME system.

    Science.gov (United States)

    Toutant, Steve; Gosselin, Pierre; Bélanger, Diane; Bustinza, Ray; Rivest, Sonia

    2011-05-25

    Every year, many deaths or health problems are directly linked to heat waves. Consequently, numerous jurisdictions around the world have developed intervention plans that are employed during extreme heat events; beyond their emergency sections, these plans generally include preventive measures to be implemented each year. Over the last five years, local and regional information systems have been implemented in a few Canadian cities for surveillance purposes. However, until recently, no such systems existed at the provincial level. In the context of the Government of Quebec's 2006-2012 Action Plan on Climate Change, a real-time integrated system for the surveillance and monitoring of extreme heat events has been implemented on a provincial level. The system is a component of a broader approach that would also monitor the public health impacts of all types of extreme meteorological events. After conducting a detailed needs analysis, the Quebec National Institute for Public Health developed and implemented an integrated web application leveraging open source software for the real-time Surveillance and Prevention of the impacts of Extreme Meteorological Events on public health, called the SUPREME system. Its first field use involved heat waves. This decision-support system is based on open source software and is composed of four modules: (1) data acquisition and integration, (2) risk analysis and alerts, (3), cartographic application, and (4) information dissemination - climate change and health portal. The system is available to health specialists through a secure web information portal and provides access to weather forecasts, historic and real-time indicators (including deaths and hospital admissions), alerts and various cartographic data used for conducting prevention activities and launching emergency measures. The SUPREME system was implemented and used during the summer of 2010. It served as an important decision-making tool during the July 2010 heat wave in the

  8. Numerical modeling of the 2D time-domain transient electromagnetic secondary field of the line source of the current excitation

    Science.gov (United States)

    Liu, Yun; Wang, Xu-Ben; Wang, Yun

    2013-06-01

    To effectively minimize the electromagnetic field response in the total field solution, we propose a numerical modeling method for the two-dimensional (2D) timedomain transient electromagnetic secondary field of the line source based on the DuFort-Frankel finite-difference method. In the proposed method, we included the treatment of the earth-air boundary conductivity, calculated the normalized partial derivative of the induced electromotive force (Emf), and determined the forward time step. By extending upward the earth-air interface to the air grid nodes and the zero-value boundary conditions, not only we have a method that is more efficient but also simpler than the total field solution. We computed and analyzed the homogeneous half-space model and the flat layered model with high precision—the maximum relative error is less than 0.01% between our method and the analytical method—and the solution speed is roughly three times faster than the total-field solution. Lastly, we used the model of a thin body embedded in a homogeneous half-space at different delay times to depict the downward and upward spreading characteristics of the induced eddy current, and the physical interaction processes between the electromagnetic field and the underground low-resistivity body.

  9. The rise of digital direct-to-consumer advertising?: Comparison of direct-to-consumer advertising expenditure trends from publicly available data sources and global policy implications.

    Science.gov (United States)

    Mackey, Tim K; Cuomo, Raphael E; Liang, Bryan A

    2015-06-19

    Pharmaceutical marketing is undergoing a major shift in the United States, in part due to new transparency regulations under the healthcare reform act. Changes in pharmaceutical marketing practices include a possible shift from more traditional forms of direct-to-consumer advertising towards emerging use of Internet-based DTCA ("eDTCA") given the growing importance of digital health or "eHealth." Though legally allowed only in the U.S. and New Zealand, eDTCA poses novel regulatory challenges, as it can cross geopolitical boundaries and impact health systems and populations outside of these countries. We wished to assess whether changes in DTCA and eDTCA expenditure trends was occurring using publicly available pharmaceutical marketing data. DTCA data was analyzed to compare trends in aggregate marketing expenditures and to assess if there were statistically significant differences in trends and magnitudes for data sources and DTCA sub-categories (including eDTCA). This was accomplished using regression lines of DTCA trend data and conducting pairwise comparisons of regression coefficients using t-tests. Means testing was utilized for comparing magnitude of DTCA expenditure. Data from multiple data sources indicate that aggregate DTCA expenditures have slightly declined during the period from 2005-2009 and are consistent with results from other studies. For DTCA sub-categories, television remained the most utilized form of DTCA, though experienced trends of declining expenditures (-13.2 %) similar to other traditional media platforms such as radio (-30.7 %) and outdoor ads (-12.1 %). The only DTCA sub-category that experienced substantial increased expenditures was eDTCA (+109.0 %) and it was the only medium that had statistically significant differences in its marketing expenditure trends compared to other DTCA sub-categories. Our study indicates that traditional DTCA marketing may be on the decline. Conversely, the only DTCA sub-category that experienced

  10. The block cipher NSABC (public domain)

    CERN Document Server

    Nguyenova-Stepanikova, Alice

    2011-01-01

    We introduce NSABC/w -- Nice-Structured Algebraic Block Cipher using w-bit word arithmetic, a 4w-bit analogous of Skipjack [NSA98] with 5w-bit key. The Skipjack's internal 4-round Feistel structure is replaced with a w-bit, 2-round cascade of a binary operation (x,z)\\mapsto(x\\boxdot z)\\lll(w/2) that permutes a text word x under control of a key word z. The operation \\boxdot, similarly to the multiplication in IDEA [LM91, LMM91], bases on an algebraic group over w-bit words, so it is also capable of decrypting by means of the inverse element of z in the group. The cipher utilizes a secret 4w-bit tweak -- an easily changeable parameter with unique value for each block encrypted under the same key [LRW02] -- that is derived from the block index and an additional 4w -bit key. A software implementation for w=64 takes circa 9 clock cycles per byte on x86-64 processors.

  11. 22 CFR 120.11 - Public domain.

    Science.gov (United States)

    2010-04-01

    .... Government and specific access and dissemination controls protecting information resulting from the research... published information; (3) Through second class mailing privileges granted by the U.S. Government; (4) At.... Government access and dissemination controls. University research will not be considered fundamental...

  12. Ready-to-eat cereals are key sources of selected micronutrients among schoolchildren from public and private elementary schools in Quetzaltenango, Guatemala.

    Science.gov (United States)

    Montenegro-Bethancourt, Gabriela; Vossenaar, Marieke; Kuijper, Lothar D; Doak, Colleen M; Solomons, Noel W

    2009-05-01

    This cross-sectional dietary survey aimed to assess the consumption and relative nutrient contribution of ready-to-eat cereals (RTEC) among schoolchildren from 2 social classes in an urban center in the Guatemalan province of Quetzaltenango. A total of 449 24-hour dietary records were collected using a pictorial workbook registry method among third- and fourth-grade schoolchildren. The sample population was divided between low-income, public school attendants (n = 219) and students from higher-income private institutions (n = 230). We described the contribution of RTEC to estimated total energy; carbohydrates; protein; fat; vitamins A, C, and D; thiamin; riboflavin; folate; calcium; iron; and zinc over the 24-hour interval of registry. Approximately 41% of the subjects mentioned RTEC at least once in their 24-hour record; 93% of these at breakfast time. From the 7 RTEC varieties reported, 4 were presweetened. Estimated cereal consumption was significantly higher among private school participants (P < .001). The RTEC contributed 2.4% of estimated total energy across the whole sample and 3.6% of total carbohydrate; iron intake from RTEC was 21% of total, whereas less than 1% of calcium intake came from this source. Among the subgroup of cereal consumers, RTEC accounted for more than 40% of their daily recommendation intake for iron, vitamin C, thiamin, and riboflavin. The RTEC consumers had significantly higher intakes for all nutrients except carbohydrate and riboflavin as compared with nonconsumers. This study demonstrates the importance of RTEC as a key source of several selected micronutrients to schoolchildren's diet in this setting.

  13. Phase-domain photoacoustic sensing

    Science.gov (United States)

    Gao, Fei; Zhang, Ruochong; Feng, Xiaohua; Liu, Siyu; Ding, Ran; Kishor, Rahul; Qiu, Lei; Zheng, Yuanjin

    2017-01-01

    As one of the fastest-growing imaging modalities in recent years, photoacoustic imaging has attracted tremendous research interest for various applications including anatomical, functional, and molecular imaging. The majority of the photoacoustic imaging systems are based on the time-domain pulsed photoacoustic method, which utilizes a pulsed laser source to induce a wideband photoacoustic signal, revealing optical absorption contrast. An alternative way is the frequency-domain photoacoustic method utilizing the chirping modulation of laser intensity to achieve lower system cost. In this paper, we report another way of the photoacoustic method, called phase-domain photoacoustic sensing, which explores the phase difference between two consequent intensity-modulated laser pulse induced photoacoustic measurements to reveal the optical properties. The basic principle is introduced, modeled, and experimentally validated in this paper, which opens another potential pathway to perform photoacoustic sensing and imaging, eliminating acoustic detection variations beyond the conventional time-domain and frequency-domain photoacoustic methods.

  14. History of the CERN Web Software Public Releases

    CERN Document Server

    Fluckiger, Francois; CERN. Geneva. IT Department

    2016-01-01

    This note is an extended version of the article “Licencing the Web” (http://home.web.cern.ch/topics/birthweb/licensing-web) published by CERN, Nov 2013, in the “Birth of the Web” series of articles (http://home.cern/topics/birth-web). It describes the successive steps of the public release of the CERN Web software, from public domain to open source, and explains their rationale. It provides in annexes historical documents including release announcement and texts of the licences used by CERN and MIT in public software distributions.

  15. Predicting domain-domain interaction based on domain profiles with feature selection and support vector machines

    Directory of Open Access Journals (Sweden)

    Liao Li

    2010-10-01

    Full Text Available Abstract Background Protein-protein interaction (PPI plays essential roles in cellular functions. The cost, time and other limitations associated with the current experimental methods have motivated the development of computational methods for predicting PPIs. As protein interactions generally occur via domains instead of the whole molecules, predicting domain-domain interaction (DDI is an important step toward PPI prediction. Computational methods developed so far have utilized information from various sources at different levels, from primary sequences, to molecular structures, to evolutionary profiles. Results In this paper, we propose a computational method to predict DDI using support vector machines (SVMs, based on domains represented as interaction profile hidden Markov models (ipHMM where interacting residues in domains are explicitly modeled according to the three dimensional structural information available at the Protein Data Bank (PDB. Features about the domains are extracted first as the Fisher scores derived from the ipHMM and then selected using singular value decomposition (SVD. Domain pairs are represented by concatenating their selected feature vectors, and classified by a support vector machine trained on these feature vectors. The method is tested by leave-one-out cross validation experiments with a set of interacting protein pairs adopted from the 3DID database. The prediction accuracy has shown significant improvement as compared to InterPreTS (Interaction Prediction through Tertiary Structure, an existing method for PPI prediction that also uses the sequences and complexes of known 3D structure. Conclusions We show that domain-domain interaction prediction can be significantly enhanced by exploiting information inherent in the domain profiles via feature selection based on Fisher scores, singular value decomposition and supervised learning based on support vector machines. Datasets and source code are freely available on

  16. .Gov Domains API

    Data.gov (United States)

    General Services Administration — This dataset offers the list of all .gov domains, including state, local, and tribal .gov domains. It does not include .mil domains, or other federal domains outside...

  17. Ontology development for Sufism domain

    Science.gov (United States)

    Iqbal, Rizwan

    2012-01-01

    Domain ontology is a descriptive representation of any particular domain which in detail describes the concepts in a domain, the relationships among those concepts and organizes them in a hierarchal manner. It is also defined as a structure of knowledge, used as a means of knowledge sharing to the community. An Important aspect of using ontologies is to make information retrieval more accurate and efficient. Thousands of domain ontologies from all around the world are available online on ontology repositories. Ontology repositories like SWOOGLE currently have over 1000 ontologies covering a wide range of domains. It was found that up to date there was no ontology available covering the domain of "Sufism". This unavailability of "Sufism" domain ontology became a motivation factor for this research. This research came up with a working "Sufism" domain ontology as well a framework, design of the proposed framework focuses on the resolution to problems which were experienced while creating the "Sufism" ontology. The development and working of the "Sufism" domain ontology are covered in detail in this research. The word "Sufism" is a term which refers to Islamic mysticism. One of the reasons to choose "Sufism" for ontology creation is its global curiosity. This research has also managed to create some individuals which inherit the concepts from the "Sufism" ontology. The creation of individuals helps to demonstrate the efficient and precise retrieval of data from the "Sufism" domain ontology. The experiment of creating the "Sufism" domain ontology was carried out on a tool called Protégé. Protégé is a tool which is used for ontology creation, editing and it is open source.

  18. Hydrogeology, chemical characteristics, and water sources and pathways in the zone of contribution of a public-supply well in San Antonio, Texas

    Science.gov (United States)

    Musgrove, MaryLynn; Fahlquist, Lynne; Stanton, Gregory P.; Houston, Natalie A.; Lindgren, Richard J.

    2011-01-01

    In 2001, the National Water-Quality Assessment (NAWQA) Program of the U.S. Geological Survey initiated a series of studies on the transport of anthropogenic and natural contaminants (TANC) to public-supply wells (PSWs). The main goal of the TANC project was to better understand the source, transport, and receptor factors that control contaminant movement to PSWs in representative aquifers of the United States. Regional- and local-scale study areas were selected from within existing NAWQA study units, including the south-central Texas Edwards aquifer. The local-scale TANC study area, nested within the regional-scale NAWQA study area, is representative of the regional Edwards aquifer. The PSW selected for study is within a well field of six production wells. Although a single PSW was initially selected, because of constraints of well-field operation, samples were collected from different wells within the well field for different components of the study. Data collected from all of the well-field wells were considered comparable because of similar well construction, hydrogeology, and geochemistry. An additional 38 PSWs (mostly completed in the confined part of the aquifer) were sampled throughout the regional aquifer to characterize water quality. Two monitoring well clusters, with wells completed at different depths, were installed to the east and west of the well field (the Zarzamora and Timberhill monitoring well clusters, respectively). One of the monitoring wells was completed in the overburden to evaluate potential hydrologic connectivity with the Edwards aquifer. Geophysical and flowmeter logs were collected from one of the well-field PSWs to determine zones of contribution to the wellbore. These contributing zones, associated with different hydrogeologic units, were used to select monitoring well completion depths and groundwater sample collection depths for depth-dependent sampling. Depth-dependent samples were collected from the PSW from three different

  19. 批判与再筑:公私二元性别规范的省思——以兰西·弗雷泽公共领域观为视角%Critique and Re -building. Reflections on the Public-Private Duality of Gender Norms--- From the Perspective of the Public Domain Concept of Lancey Fraser

    Institute of Scientific and Technical Information of China (English)

    丁慧

    2012-01-01

    公共领域和私人领域的二元划分,作为哈贝马斯的理想图景,发挥其重要的理论建构作用,在学界引起广泛影响,同时也引起了持久的争论,并且受到多方的质疑和挑战。其中,女性主义对公共领域概念进行了颠覆性的改造。女性主义对此问题的关注,主要集中在女性与社会关系、女性的社会地位等方面,以社会性别的分析视角反思单一的总括性公共领域构想,女性作为弱势群体的作用长期被忽略了。公共领域既是形成话语意见的场所,也是形成社会身份的场所。由于在历史发展过程中,女性始终处于一种无语的状态,女性的话题一直被遮蔽在权力关系之外,即使自由主义时期,家务劳动的价值没有得到确认和展开。性别偏置的问题没有得到根本性改观,基于公共领域意志所形成的性别规范和性别制度必然呈现男权主义的特征。因此,公私二元的理论修正,对于性别平等这一价值和原则而言,是重要的理论支点。%The dual division of public and private spheres, as Habermas's ideal picture, played an important role in the theoretical construction and caused widespread impacts in the academic community and a long debate, which were questioned and challenged by the parties. Among them, the concept of feminism car- ried out disruptive transformation to the concept of the public domain. Attention of feminism focuses mainly on women and social relations and women's social status. Reflecting on a single, overarching public sphere concept by gender analysis perspective we find the role of women as vulnerable groups have long been ignored. The public sphere is not only the place to form the words and views, but also the place to form the social identity. In the course of historical development women are always in a state of loss of speech, and the topic of women has been obscured in power relations~ even if in the liberal period, the val- ue of

  20. Publicity and public relations

    Science.gov (United States)

    Fosha, Charles E.

    1990-01-01

    This paper addresses approaches to using publicity and public relations to meet the goals of the NASA Space Grant College. Methods universities and colleges can use to publicize space activities are presented.

  1. Depiction of global trends in publications on mobile health

    Directory of Open Access Journals (Sweden)

    Shahla Foozonkhah

    2017-07-01

    Full Text Available Background: Variety of mobile health initiatives in different levels have been undertaken across many countries. Trends of these initiatives can be reflected in the research published in m-health domain. Aim: This paper aims to depict global trends in the published works on m-health topic. Materials and Methods: The Web of Science database was used to identify all relevant published papers on mobile health domain worldwide. The search was conducted on documents published from January 1898 to December 2014. The criteria for searching were set to be “mHealth” or “Mobile health” or “m health” or “m_health” or “m-health” in topics. Results: Findings revealed an increasing trend of citations and publications on m-health research since 2012. English was the first most predominant language of the publication. The US had the highest number of publication with 649 papers; however, the Netherlands ranked first after considering publication number in terms of countries population. “Studies in Health Technology and Informatics” was the source title with highest number of publications on mobile health topics. Conclusion: Trend of research observed in this study indicates the continuing growth is happening in mobile health domain. This may imply that the new model of health-care delivery is emerging. Further research is needed to specify directions of mobile health research. It is necessary to identify and prioritize the research gaps in this domain.

  2. Unsupervised, low latency anomaly detection of algorithmically generated domain names by generative probabilistic modeling.

    Science.gov (United States)

    Raghuram, Jayaram; Miller, David J; Kesidis, George

    2014-07-01

    We propose a method for detecting anomalous domain names, with focus on algorithmically generated domain names which are frequently associated with malicious activities such as fast flux service networks, particularly for bot networks (or botnets), malware, and phishing. Our method is based on learning a (null hypothesis) probability model based on a large set of domain names that have been white listed by some reliable authority. Since these names are mostly assigned by humans, they are pronounceable, and tend to have a distribution of characters, words, word lengths, and number of words that are typical of some language (mostly English), and often consist of words drawn from a known lexicon. On the other hand, in the present day scenario, algorithmically generated domain names typically have distributions that are quite different from that of human-created domain names. We propose a fully generative model for the probability distribution of benign (white listed) domain names which can be used in an anomaly detection setting for identifying putative algorithmically generated domain names. Unlike other methods, our approach can make detections without considering any additional (latency producing) information sources, often used to detect fast flux activity. Experiments on a publicly available, large data set of domain names associated with fast flux service networks show encouraging results, relative to several baseline methods, with higher detection rates and low false positive rates.

  3. Developing an Ontology for Improving Question Answering in the Agricultural Domain

    Science.gov (United States)

    Vila, Katia; Ferrández, Antonio

    Numerous resources have been developed to have a better access to scientific information in the agricultural domain. However, they are rather concerned with providing general metadata of bibliographic references, which prevents users from accessing precise agricultural information in a transparent and simple manner. To overcome this drawback, in this paper, we propose to use domain-specific resources to improve the results in the answers obtained by an Open-Domain Question Answering (QA) system, obtaining a QA system for the agricultural domain. Specifically, it has been made by (i) creating an ontology that covers concepts and relationships from journal publications of the agricultural domain, (ii) enriching this ontology with some public data sources (e.g the Agrovoc thesaurus and the WordNet lexical database) in order to be precisely used in an agricultural domain, and (iii) aligning this enriched ontology with articles from our case-study journal, i.e. the Cuban Journal of Agricultural Science. Finally, we have developed a set of experiments in order to show the usefulness of our approach.

  4. Ubiquitin domain proteins in disease

    DEFF Research Database (Denmark)

    Klausen, Louise Kjær; Schulze, Andrea; Seeger, Michael

    2007-01-01

    The human genome encodes several ubiquitin-like (UBL) domain proteins (UDPs). Members of this protein family are involved in a variety of cellular functions and many are connected to the ubiquitin proteasome system, an essential pathway for protein degradation in eukaryotic cells. Despite their s...... and cancer. Publication history: Republished from Current BioData's Targeted Proteins database (TPdb; http://www.targetedproteinsdb.com).......The human genome encodes several ubiquitin-like (UBL) domain proteins (UDPs). Members of this protein family are involved in a variety of cellular functions and many are connected to the ubiquitin proteasome system, an essential pathway for protein degradation in eukaryotic cells. Despite...

  5. Introducing a new open source GIS user interface for the SWAT model

    Science.gov (United States)

    The Soil and Water Assessment Tool (SWAT) model is a robust watershed modelling tool. It typically uses the ArcSWAT interface to create its inputs. ArcSWAT is public domain software which works in the licensed ArcGIS environment. The aim of this paper was to develop an open source user interface ...

  6. The AAM-API: An Open Source Active Appearance Model Implementation

    DEFF Research Database (Denmark)

    Stegmann, Mikkel Bille

    2003-01-01

    This paper presents a public domain implementation of the Active Appearance Model framework and gives examples using it for segmentation and analysis of medical images. The software is open source, designed with efficiency in mind, and has been thoroughly tested and evaluated in several medical a...

  7. 基于保留部分频域镜像分量的声源定位算法%SOUND SOURCE LOCALISATION ALGORITHM BASED ON RETAINING PARTIAL MIRROR COMPONENTS IN FREQUENCY DOMAIN

    Institute of Scientific and Technical Information of China (English)

    蔡卫平; 刘瑞娟; 周琳

    2016-01-01

    To deal with the problem of the sound source localisation algorithm of traditional steered response power with phase transform weighting (SRP-PHAT)that its localisation performance is easily degraded due to noise influence,in this paper we propose an improved algorithm which pads the zeros in frequency domain and retains partial mirror components as well.First,the algorithm transforms the received signals to frequency domain through fast Fourier transform (FFT),and then pads the zeros to reach 20 times of the frame length in high-frequency band while preserving part of the mirror components.On this basis,the cross power spectral density function of the microphone pair on received signals can be estimated,and the corresponding generalised cross correlation with phase transform weighting (GCC-PHAT) function can be obtained by taking inverse fast Fourier transform (IFFT).The retained mirror components broaden the signal spectrum so that the peak of GCC-PHAT function becomes sharper. Consequently, the spatial spectrum peak of SRP-PHAT function, which is the accumulation of GCC-PHAT functions for all of the microphone pairs,becomes sharper,thus the localisation performance is improved. Experiments show that compared with conventional algorithms,the proposed algorithm can considerably enhance the success rates of sound source localisation.%针对传统的SRP-PHAT(Steered Response Power with Phase Transform)声源定位算法容易受噪声影响而导致定位性能降低的问题,提出一种频域补零且保留部分镜像分量的改进算法。该算法首先通过傅里叶变换将接收信号变换到频域,然后在高频端补零至20倍帧长,同时保留部分镜像分量。在此基础上计算麦克风对接收信号的互功率谱密度函数,作傅里叶逆变换得到相位变换加权的广义互相关(GCC-PHAT)函数。保留的镜像分量拓宽了信号频域,使GCC-PHAT函数的峰更为尖锐,累加后得到的SRP-PHAT函数的

  8. Integrating natural language processing and web GIS for interactive knowledge domain visualization

    Science.gov (United States)

    Du, Fangming

    Recent years have seen a powerful shift towards data-rich environments throughout society. This has extended to a change in how the artifacts and products of scientific knowledge production can be analyzed and understood. Bottom-up approaches are on the rise that combine access to huge amounts of academic publications with advanced computer graphics and data processing tools, including natural language processing. Knowledge domain visualization is one of those multi-technology approaches, with its aim of turning domain-specific human knowledge into highly visual representations in order to better understand the structure and evolution of domain knowledge. For example, network visualizations built from co-author relations contained in academic publications can provide insight on how scholars collaborate with each other in one or multiple domains, and visualizations built from the text content of articles can help us understand the topical structure of knowledge domains. These knowledge domain visualizations need to support interactive viewing and exploration by users. Such spatialization efforts are increasingly looking to geography and GIS as a source of metaphors and practical technology solutions, even when non-georeferenced information is managed, analyzed, and visualized. When it comes to deploying spatialized representations online, web mapping and web GIS can provide practical technology solutions for interactive viewing of knowledge domain visualizations, from panning and zooming to the overlay of additional information. This thesis presents a novel combination of advanced natural language processing - in the form of topic modeling - with dimensionality reduction through self-organizing maps and the deployment of web mapping/GIS technology towards intuitive, GIS-like, exploration of a knowledge domain visualization. A complete workflow is proposed and implemented that processes any corpus of input text documents into a map form and leverages a web

  9. The Bone Dysplasia Ontology: integrating genotype and phenotype information in the skeletal dysplasia domain.

    Science.gov (United States)

    Groza, Tudor; Hunter, Jane; Zankl, Andreas

    2012-03-26

    Skeletal dysplasias are a rare and heterogeneous group of genetic disorders affecting skeletal development. Patients with skeletal dysplasias suffer from many complex medical issues including degenerative joint disease and neurological complications. Because the data and expertise associated with this field is both sparse and disparate, significant benefits will potentially accrue from the availability of an ontology that provides a shared conceptualisation of the domain knowledge and enables data integration, cross-referencing and advanced reasoning across the relevant but distributed data sources. We introduce the design considerations and implementation details of the Bone Dysplasia Ontology. We also describe the different components of the ontology, including a comprehensive and formal representation of the skeletal dysplasia domain as well as the related genotypes and phenotypes. We then briefly describe SKELETOME, a community-driven knowledge curation platform that is underpinned by the Bone Dysplasia Ontology. SKELETOME enables domain experts to use, refine and extend and apply the ontology without any prior ontology engineering experience--to advance the body of knowledge in the skeletal dysplasia field. The Bone Dysplasia Ontology represents the most comprehensive structured knowledge source for the skeletal dysplasias domain. It provides the means for integrating and annotating clinical and research data, not only at the generic domain knowledge level, but also at the level of individual patient case studies. It enables links between individual cases and publicly available genotype and phenotype resources based on a community-driven curation process that ensures a shared conceptualisation of the domain knowledge and its continuous incremental evolution.

  10. 2-D Forward Modeling of Frequency Domain Controlled-Source Electromagnetic based on Matlab%基于Matlab的频率域可控源电磁法二维正演模拟

    Institute of Scientific and Technical Information of China (English)

    何德平; 周志军; 童孝忠

    2012-01-01

    Based on Matlab as programming tool, the formula of 2-D forward modeling of frequency domain controlled-source electromagnetic is derived adopting the finite element method of quadratic interpolation in a rectangular element.In order to simulate the infinity border and meet the memory requirement of computer, the non-uniform gird is designed with ensuring the computation accuracy. In programm compiling, it only stored the non-zero elements of finite element matrix to reduce the forward calculation time. By numerical simulation of homogeneous half-space model and electromagnetic response of 2-D model, the corresponding curve of apparent resistivity and impendence phase is obtained, and the correctness of the forward modeling algorithm is verified.%该文以Matlab为程序编译工具,采用双二次插值的有限单元法,推导出频率域可控源电磁法二维正演的计算公式.为了模拟无穷远边界及满足计算机的内存需求,在保证计算精度的情况下设计了非均匀网格剖分.在程序编制中,只存储有限元系数矩阵的非零元素,大大减少了正演计算的时间.通过对均匀半空间和二维模型电磁响应的计算,获得了相应的视电阻率和阻抗相位曲线,验证了算法的正确性.

  11. A typology of public engagement mechanisms

    NARCIS (Netherlands)

    Rowe, G.; Frewer, L.J.

    2005-01-01

    Imprecise definition of key terms in the "public participation" domain have hindered the conduct of good research and militated against the development and implementation of effective participation practices. In this article, we define key concepts in the domain: public communication, public consult

  12. Dataset of Atmospheric Environment Publication in 2016, Source emission and model evaluation of formaldehyde from composite and solid wood furniture in a full-scale chamber

    Data.gov (United States)

    U.S. Environmental Protection Agency — The data presented in this data file is a product of a journal publication. The dataset contains formaldehyde air concentrations in the emission test chamber and...

  13. Public Education, Public Good.

    Science.gov (United States)

    Tomlinson, John

    1986-01-01

    Criticizes policies which would damage or destroy a public education system. Examines the relationship between government-provided education and democracy. Concludes that privatization of public education would emphasize self-interest and selfishness, further jeopardizing the altruism and civic mindedness necessary for the public good. (JDH)

  14. EuPathDomains: the divergent domain database for eukaryotic pathogens.

    Science.gov (United States)

    Ghouila, Amel; Terrapon, Nicolas; Gascuel, Olivier; Guerfali, Fatma Z; Laouini, Dhafer; Maréchal, Eric; Bréhélin, Laurent

    2011-06-01

    Eukaryotic pathogens (e.g. Plasmodium, Leishmania, Trypanosomes, etc.) are a major source of morbidity and mortality worldwide. In Africa, one of the most impacted continents, they cause millions of deaths and constitute an immense economic burden. While the genome sequence of several of these organisms is now available, the biological functions of more than half of their proteins are still unknown. This is a serious issue for bringing to the foreground the expected new therapeutic targets. In this context, the identification of protein domains is a key step to improve the functional annotation of the proteins. However, several domains are missed in eukaryotic pathogens because of the high phylogenetic distance of these organisms from the classical eukaryote models. We recently proposed a method, co-occurrence domain detection (CODD), that improves the sensitivity of Pfam domain detection by exploiting the tendency of domains to appear preferentially with a few other favorite domains in a protein. In this paper, we present EuPathDomains (http://www.atgc-montpellier.fr/EuPathDomains/), an extended database of protein domains belonging to ten major eukaryotic human pathogens. EuPathDomains gathers known and new domains detected by CODD, along with the associated confidence measurements and the GO annotations that can be deduced from the new domains. This database significantly extends the Pfam domain coverage of all selected genomes, by proposing new occurrences of domains as well as new domain families that have never been reported before. For example, with a false discovery rate lower than 20%, EuPathDomains increases the number of detected domains by 13% in Toxoplasma gondii genome and up to 28% in Cryptospordium parvum, and the total number of domain families by 10% in Plasmodium falciparum and up to 16% in C. parvum genome. The database can be queried by protein names, domain identifiers, Pfam or Interpro identifiers, or organisms, and should become a valuable

  15. Interaction Design for Public Spaces

    DEFF Research Database (Denmark)

    Kortbek, Karen Johanne

    2008-01-01

    In this abstract I describe the doctorial research project "Interaction Design for Public Spaces". The objective of the project is to explore and design interaction contexts in culture related public spaces such as museums, experience centres and festivals. As a perspective on this domain, I...... will help interaction designers when designing for bodily movement, and communicating and staging interactive content in public spaces....

  16. Protein domain prediction

    NARCIS (Netherlands)

    Ingolfsson, Helgi; Yona, Golan

    2008-01-01

    Domains are considered to be the building blocks of protein structures. A protein can contain a single domain or multiple domains, each one typically associated with a specific function. The combination of domains determines the function of the protein, its subcellular localization and the interacti

  17. Membrane binding domains

    OpenAIRE

    Hurley, James H.

    2006-01-01

    Eukaryotic signaling and trafficking proteins are rich in modular domains that bind cell membranes. These binding events are tightly regulated in space and time. The structural, biochemical, and biophysical mechanisms for targeting have been worked out for many families of membrane binding domains. This review takes a comparative view of seven major classes of membrane binding domains, the C1, C2, PH, FYVE, PX, ENTH, and BAR domains. These domains use a combination of specific headgroup inter...

  18. California GAMA Special Study: An isotopic and dissolved gas investigation of nitrate source and transport to a public supply well in California's Central Valley

    Energy Technology Data Exchange (ETDEWEB)

    Singleton, M J; Moran, J E; Esser, B K; Roberts, S K; Hillegonds, D J

    2010-04-14

    This study investigates nitrate contamination of a deep municipal drinking water production well in Ripon, CA to demonstrate the utility of natural groundwater tracers in constraining the sources and transport of nitrate to deep aquifers in the Central Valley. The goal of the study was to investigate the origin (source) of elevated nitrate and the potential for the deep aquifer to attenuate anthropogenic nitrate. The site is ideal for such an investigation. The production well is screened from 165-325 feet below ground surface and a number of nearby shallow and deep monitoring wells were available for sampling. Furthermore, potential sources of nitrate contamination to the well had been identified, including a fertilizer supply plant located approximately 1000 feet to the east and local almond groves. A variety of natural isotopic and dissolved gas tracers including {sup 3}H-{sup 3}He groundwater age and the isotopic composition of nitrate are applied to identify nitrate sources and to characterize nitrate transport. An advanced method for sampling production wells is employed to help identify contaminant contributions from specific screen intervals. Nitrate transport: Groundwater nitrate at this field site is not being actively denitrified. Groundwater parameters indicate oxic conditions, the dissolved gas data shows no evidence for excess nitrogen as the result of denitrification, and nitrate-N and -O isotope compositions do not display patterns typical of denitrification. Contaminant nitrate source: The ambient nitrate concentration in shallow groundwater at the Ripon site ({approx}12 mg/L as nitrate) is typical of shallow groundwaters affected by recharge from agricultural and urban areas. Nitrate concentrations in Ripon City Well 12 (50-58 mg/L as nitrate) are significantly higher than these ambient concentrations, indicating an additional source of anthropogenic nitrate is affecting groundwater in the capture zone of this municipal drinking water well. This

  19. SOURCE REDUCTION BEHAVIOR AS AN INDEPENDENT MEASUREMENT OF THE IMPACT OF A PUBLIC HEALTH EDUCATION CAMPAIGN IN AN INTEGRATED VECTOR MANAGEMENT PROGRAM FOR THE ASIAN TIGER MOSQUITO

    Science.gov (United States)

    The goal of this study was to evaluate the effectiveness of a public health educational campaign to reduce backyard mosquito-larval habitats. Three communities each, within two New Jersey counties, were randomly selected to receive (1) both education and mosquito control, (2) education only, and (3)...

  20. Public Speech.

    Science.gov (United States)

    Green, Thomas F.

    1994-01-01

    Discusses the importance of public speech in society, noting the power of public speech to create a world and a public. The paper offers a theory of public speech, identifies types of public speech, and types of public speech fallacies. Two ways of speaking of the public and of public life are distinguished. (SM)

  1. Health domains for sale: the need for global health Internet governance.

    Science.gov (United States)

    Mackey, Tim Ken; Liang, Bryan A; Kohler, Jillian C; Attaran, Amir

    2014-03-05

    A debate on Internet governance for health, or "eHealth governance", is emerging with the impending award of a new dot-health (.health) generic top-level domain name (gTLD) along with a host of other health-related domains. This development is critical as it will shape the future of the health Internet, allowing largely unrestricted use of .health second-level domain names by future registrants, raising concerns about the potential for privacy, use and marketing of health-related information, credibility of online health content, and potential for Internet fraud and abuse. Yet, prospective .health gTLD applicants do not provide adequate safeguards for use of .health or related domains and have few or no ties to the global health community. If approved, one of these for-profit corporate applicants would effectively control the future of the .health address on the Internet with arguably no active oversight from important international public health stakeholders. This would represent a lost opportunity for the public health, medical, and broader health community in establishing a trusted, transparent and reliable source for health on the Internet. Countries, medical associations, civil society, and consumer advocates have objected to these applications on grounds that they do not meet the public interest. We argue that there is an immediate need for action to postpone awarding of the .health gTLD and other health-related gTLDs to address these concerns and ensure the appropriate development of sound eHealth governance rules, principles, and use. This would support the crucial need of ensuring access to quality and evidence-based sources of health information online, as well as establishing a safe and reliable space on the Internet for health. We believe, if properly governed, .health and other domains could represent such a promise in the future.

  2. Using context to improve protein domain identification

    Directory of Open Access Journals (Sweden)

    Llinás Manuel

    2011-03-01

    Full Text Available Abstract Background Identifying domains in protein sequences is an important step in protein structural and functional annotation. Existing domain recognition methods typically evaluate each domain prediction independently of the rest. However, the majority of proteins are multidomain, and pairwise domain co-occurrences are highly specific and non-transitive. Results Here, we demonstrate how to exploit domain co-occurrence to boost weak domain predictions that appear in previously observed combinations, while penalizing higher confidence domains if such combinations have never been observed. Our framework, Domain Prediction Using Context (dPUC, incorporates pairwise "context" scores between domains, along with traditional domain scores and thresholds, and improves domain prediction across a variety of organisms from bacteria to protozoa and metazoa. Among the genomes we tested, dPUC is most successful at improving predictions for the poorly-annotated malaria parasite Plasmodium falciparum, for which over 38% of the genome is currently unannotated. Our approach enables high-confidence annotations in this organism and the identification of orthologs to many core machinery proteins conserved in all eukaryotes, including those involved in ribosomal assembly and other RNA processing events, which surprisingly had not been previously known. Conclusions Overall, our results demonstrate that this new context-based approach will provide significant improvements in domain and function prediction, especially for poorly understood genomes for which the need for additional annotations is greatest. Source code for the algorithm is available under a GPL open source license at http://compbio.cs.princeton.edu/dpuc/. Pre-computed results for our test organisms and a web server are also available at that location.

  3. Public Computation & Boundary Play

    CERN Document Server

    Sengupta, Pratim

    2016-01-01

    In this paper, we introduce 'public computation' as a genre of learning environments that can be used to radically broaden public participation in authentic, computation-enabled STEM disciplinary practices. Our paradigmatic approach utilizes open source software designed for professional scientists, engineers and digital artists, and situates them in an undiluted form, alongside live and archived expert support, in a public space. We present a case study of DigiPlay, a prototypical public computation space we designed at the University of Calgary, where users can interact directly with scientific simulations as well as the underlying open source code using an array of massive multi- touch screens. We argue that in such a space, public interactions with the code can be thought of as boundary work and play, through which public participation becomes legitimate scientific act, as the public engages in scientific creation through truly open-ended explorations with the code.

  4. The Publicly Available Prebiotic Interstellar Molecular Survey (primos): Expanding Spectroscopic Characterizations, Extending to New Sources, and Adding to the Known Molecular Inventory

    Science.gov (United States)

    McGuire, Brett A.; Carroll, P. Brandon; Corby, Joanna F.; Loomis, Ryan A.; Blake, Geoffrey A.; Hollis, Jan M.; Lovas, Frank J.; Jewell, Philip R.; Remijan, Anthony J.

    2013-06-01

    The publicly available Green Bank Telescope PRebiotic Interstellar MOlecular Survey (PRIMOS) conducted towards Sgr B2(N) provides high resolution, high-sensitivity observations with near-continuous frequency coverage from ˜300 MHz - 50 GHz. Of the eleven new molecular detections in the last year, five (45%) are a direct result of the PRIMOS observations. Further, these observations have recently been used to detect the predicted, but previously unobserved, J = 1-0 and J=2-1 transitions of the newly detected l-C_3H^+ ion. Here, we discuss the analysis of these transitions, as well as recent work to extend the PRIMOS observations to three new regions of interest: VY Canis Majoris, IRC+10216, and NGC 2023. Finally, we highlight the utility of cm-wave surveys in new molecular detections, as well as the value of publicly-available surveys in the approaching era of data-enabled, analysis-limited astrochemistry.

  5. Domains via Graphs

    Institute of Scientific and Technical Information of China (English)

    ZHANG Guoqiang; CHEN Yixiang

    2001-01-01

    This paper provides a concrete and simple introduction to two pillars of domain theory: (1) solving recursive domain equations, and (2) universal and saturated domains. Our exposition combines Larsen and Winskel's idea on solving domain equations using information systems with Girard's idea of stable domain theory in the form of coherence spaces, or graphs.Detailed constructions are given for universal and even homogeneous objects in two categories of graphs: one representing binary complete, prime algebraic domains with complete primes covering the bottom; the other representing ω-algebraic, prime algebraic lattices. The backand-forth argument in model theory helps to enlighten the constructions.

  6. Hispanic Latin America, Spain and the Spanish-speaking Caribbean: A rich source of reference material for public health, epidemiology and tropical medicine

    OpenAIRE

    Basáñez María-Gloria; Bórquez Annick; Williams John R

    2008-01-01

    Abstract There is a multiplicity of journals originating in Spain and the Spanish-speaking countries of Latin America and the Caribbean (SSLAC) in the health sciences of relevance to the fields of epidemiology and public health. While the subject matter of epidemiology in Spain shares many features with its neighbours in Western Europe, many aspects of epidemiology in Latin America are particular to that region. There are also distinctive theoretical and philosophical approaches to the study ...

  7. Terra Cognita: Graduate Students in the Archives. A Retrospective on the CLIR Mellon Fellowships for Dissertation Research in Original Sources. CLIR Publication No. 170

    Science.gov (United States)

    Council on Library and Information Resources, 2016

    2016-01-01

    "Terra Cognita" surveys the current landscape of archival research and the experiences of emerging scholars seeking to navigate it. Drawing on data from the Council on Library and Information Resources' (CLIR's) Mellon Fellowships for Dissertation Research in Original Sources, the report takes an in-depth look at how the conditions and…

  8. shiftNMFk 1.1: Robust Nonnegative matrix factorization with kmeans clustering and signal shift, for allocation of unknown physical sources, toy version for open sourcing with publications

    Energy Technology Data Exchange (ETDEWEB)

    2016-07-19

    This code is a toy (short) version of CODE-2016-83. From a general perspective, the code represents an unsupervised adaptive machine learning algorithm that allows efficient and high performance de-mixing and feature extraction of a multitude of non-negative signals mixed and recorded by a network of uncorrelated sensor arrays. The code identifies the number of the mixed original signals and their locations. Further, the code also allows deciphering of signals that have been delayed in regards to the mixing process in each sensor. This code is high customizable and it can be efficiently used for a fast macro-analyses of data. The code is applicable to a plethora of distinct problems: chemical decomposition, pressure transient decomposition, unknown sources/signal allocation, EM signal decomposition. An additional procedure for allocation of the unknown sources is incorporated in the code.

  9. Domains of laminin

    DEFF Research Database (Denmark)

    Engvall, E; Wewer, U M

    1996-01-01

    Extracellular matrix molecules are often very large and made up of several independent domains, frequently with autonomous activities. Laminin is no exception. A number of globular and rod-like domains can be identified in laminin and its isoforms by sequence analysis as well as by electron...... microscopy. Here we present the structure-function relations in laminins by examination of their individual domains. This approach to viewing laminin is based on recent results from several laboratories. First, some mutations in laminin genes that cause disease have affected single laminin domains, and some...... laminin isoforms lack particular domains. These mutants and isoforms are informative with regard to the activities of the mutated and missing domains. These mutants and isoforms are informative with regard to the activities of the mutated and missing domains. Second, laminin-like domains have now been...

  10. MMLEADS Public Use File

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Medicare-Medicaid Linked Enrollee Analytic Data Source (MMLEADS) Public Use File (PUF) contains demographic, enrollment, condition prevalence, utilization, and...

  11. Are Public-Private Partnerships a Source of Greater Efficiency in Water Supply? Results of a Non-Parametric Performance Analysis Relating to the Italian Industry

    Directory of Open Access Journals (Sweden)

    Corrado lo Storto

    2013-12-01

    Full Text Available This article reports the outcome of a performance study of the water service provision industry in Italy. The study evaluates the efficiency of 21 “private or public-private” equity and 32 “public” equity water service operators and investigates controlling factors. In particular, the influence that the operator typology and service management nature - private vs. public - has on efficiency is assessed. The study employed a two-stage Data Envelopment Analysis methodology. In the first stage, the operational efficiency of water supply operators is calculated by implementing a conventional BCC DEA model, that uses both physical infrastructure and financial input and output variables to explore economies of scale. In the second stage, bootstrapped DEA and Tobit regression are performed to estimate the influence that a number of environmental factors have on water supplier efficiency. The results show that the integrated water provision industry in Italy is characterized by operational inefficiencies of service operators, and scale and agglomeration economies may have a not negligible effect on efficiency. In addition, the operator typology and its geographical location affect efficiency.

  12. Public Values

    DEFF Research Database (Denmark)

    Beck Jørgensen, Torben; Rutgers, Mark R.

    2015-01-01

    administration is approached in terms of processes guided or restricted by public values and as public value creating: public management and public policy-making are both concerned with establishing, following and realizing public values. To study public values a broad perspective is needed. The article suggest......This article provides the introduction to a symposium on contemporary public values research. It is argued that the contribution to this symposium represent a Public Values Perspective, distinct from other specific lines of research that also use public value as a core concept. Public...... a research agenda for this encompasing kind of public values research. Finally the contributions to the symposium are introduced....

  13. Initial Public Offering

    OpenAIRE

    Veselý, Marek

    2009-01-01

    Thesis describes initial public offering on the stock markets. There are mentioned basic phases of this process. In this thesis is named pros & cons of this source of financing. Recommends also other ways how to gain capital for own company business acitivities. Thesis is interested about main conditions for successfull "going public". Initial Public Offering of bonds is described too. Practical part of this thesis is concern IPO in the Czech Republic -- historical data, IPO in the past on Pr...

  14. An Empirical Research on Periodic Fluctuation of Public Opinion on Microblogging and Other Domains%微博舆情跨域周期波动实证研究

    Institute of Scientific and Technical Information of China (English)

    盛宇

    2015-01-01

    Combining the period of microblogging public opinion and the period of objective factors triggering the microblogging events, this paper conducts a cross-field research on periodic fluctuation of online and offline. The paper puts forward a complete set of research ideas and research methods, and conducts an empirical research to test the feasibility of the ideas, taking the haze event on microblogging as an example. The conclusion implies the interactive rules between the periods of microblogging public opinion and objective factors, and proposes a microblogging public opinion forecasting model. The study deepens the theory of periodic microblogging public opinion, and provides a new way for the early warning of microblogging public opinion, and the paper has significant values in both theoretical and practical aspects.%以生命周期理论为基础,将微博舆情周期与触发事件客观因素周期相联系,进行线上线下的跨域周期波动研究,提出一整套研究思路和研究方法,并以微博雾霾事件为例进行实证分析,考察了思路的可行性,实证结论揭示了微博雾霾舆情周期与客观因素周期之间的互动规律,提出微博舆情预测模型。深化了微博舆情周期理论,并为微博舆情预警提供了新思路,在理论性和实用性方面都具有重要价值。

  15. Domain Specific Language Support for Exascale

    Energy Technology Data Exchange (ETDEWEB)

    Sadayappan, Ponnuswamy [The Ohio State Univ., Columbus, OH (United States)

    2017-02-24

    Domain-Specific Languages (DSLs) offer an attractive path to Exascale software since they provide expressive power through appropriate abstractions and enable domain-specific optimizations. But the advantages of a DSL compete with the difficulties of implementing a DSL, even for a narrowly defined domain. The DTEC project addresses how a variety of DSLs can be easily implemented to leverage existing compiler analysis and transformation capabilities within the ROSE open source compiler as part of a research program focusing on Exascale challenges. The OSU contributions to the DTEC project are in the area of code generation from high-level DSL descriptions, as well as verification of the automatically-generated code.

  16. Cepstrum analysis of seismic source characteristics

    Institute of Scientific and Technical Information of China (English)

    魏富胜; 黎明

    2003-01-01

    This paper introduces the concept of cepstrum. By investigating the difference in source characteristics between earthquakes and explosions the paper infers the manifestation of source difference in various variable domains, and seeks for effective means to express such source difference. Extending the approach of source discrimination from time and frequency domain to the cepstrum domain, the paper proposes a method of cepstrum analysis for recognizing the characteristics of seismic sources and establishes criteria for identifying the type of seismic sources. Cepstrum analysis on some recent earthquakes and explosions has been made, and the result shows that the method is quite effective in practice.

  17. Translation domains in multiferroics

    OpenAIRE

    Meier, D; Leo, N; Jungk, T.; Soergel, E.; Becker, P.; Bohaty, L.; Fiebig, M.

    2010-01-01

    Translation domains differing in the phase but not in the orientation of the corresponding order parameter are resolved in two types of multiferroics. Hexagonal (h-) YMnO$_3$ is a split-order-parameter multiferroic in which commensurate ferroelectric translation domains are resolved by piezoresponse force microscopy whereas MnWO$_4$ is a joint-order-parameter multiferroic in which incommensurate magnetic translation domains are observed by optical second harmonic generation. The pronounced ma...

  18. Staggered domain wall fermions

    CERN Document Server

    Hoelbling, Christian

    2016-01-01

    We construct domain wall fermions with a staggered kernel and investigate their spectral and chiral properties numerically in the Schwinger model. In some relevant cases we see an improvement of chirality by more than an order of magnitude as compared to usual domain wall fermions. Moreover, we present first results for four-dimensional quantum chromodynamics, where we also observe significant reductions of chiral symmetry violations for staggered domain wall fermions.

  19. Consumption of woody biomass in industry, commercial, and public facilities in Serbia: Present state and possible contribution to the share of renewable sources in final energy consumption

    Directory of Open Access Journals (Sweden)

    Glavonjić Branko D.

    2012-01-01

    Full Text Available This paper is the continuation of the presentation of results obtained in comprehensive researches of woody biomass consumption in Serbia conducted as a part of the TCP/FAO project “Wood energy for sustainable rural development”. The previous paper (No. 3, 2011 showed results of wood fuels consumption for households heating and this paper shows their consumption for the needs of industry, commercial and public facilities. Research results show that total consumption of woody biomass in Serbia in 2010 was 7.41 million m3, out of which 7.03 million m3 was in the form of roundwood and 0.38 million m3 was in the form of wood residue from industry. The biggest consumers of woody biomass (roundwood, chips, residues are households with the participation of 86.54%, followed by the production of wood-based panels with 4.47% and energy production for own purposes of wood processing companies with 2.96%. Compared to the officially registered consumption in energy balance in the amount of 0.281 Mtoe, actual consumption of wood energy in Serbia in 2010 was 1.37 Mtoe or 4.9 times higher. Participation of wood energy in final energy consumption in Serbia was 57,300 TJ or 13.6% in 2010. Current use of wood energy substitutes imports of light heating oil in the value of 1.3 billion € or 650 million € in the case of natural gas substituting. Use of wood fuel prevented emissions of about 7 million tonnes of CO2 from fossil fuels.

  20. Pragmatic circuits frequency domain

    CERN Document Server

    Eccles, William

    2006-01-01

    Pragmatic Circuits: Frequency Domain goes through the Laplace transform to get from the time domain to topics that include the s-plane, Bode diagrams, and the sinusoidal steady state. This second of three volumes ends with a-c power, which, although it is just a special case of the sinusoidal steady state, is an important topic with unique techniques and terminology. Pragmatic Circuits: Frequency Domain is focused on the frequency domain. In other words, time will no longer be the independent variable in our analysis. The two other volumes in the Pragmatic Circuits series include titles on DC

  1. Visualizing domain wall and reverse domain superconductivity.

    Science.gov (United States)

    Iavarone, M; Moore, S A; Fedor, J; Ciocys, S T; Karapetrov, G; Pearson, J; Novosad, V; Bader, S D

    2014-08-28

    In magnetically coupled, planar ferromagnet-superconductor (F/S) hybrid structures, magnetic domain walls can be used to spatially confine the superconductivity. In contrast to a superconductor in a uniform applied magnetic field, the nucleation of the superconducting order parameter in F/S structures is governed by the inhomogeneous magnetic field distribution. The interplay between the superconductivity localized at the domain walls and far from the walls leads to effects such as re-entrant superconductivity and reverse domain superconductivity with the critical temperature depending upon the location. Here we use scanning tunnelling spectroscopy to directly image the nucleation of superconductivity at the domain wall in F/S structures realized with Co-Pd multilayers and Pb thin films. Our results demonstrate that such F/S structures are attractive model systems that offer the possibility to control the strength and the location of the superconducting nucleus by applying an external magnetic field, potentially useful to guide vortices for computing application.

  2. A Generalized Framework for Ontology-Based Information Retrieval Application to a public-transportation system

    OpenAIRE

    2014-01-01

    In this paper we present a generic framework for ontology-based information retrieval. We focus on the recognition of semantic information extracted from data sources and the mapping of this knowledge into ontology. In order to achieve more scalability, we propose an approach for semantic indexing based on entity retrieval model. In addition, we have used ontology of public transportation domain in order to validate these proposals. Finally, we evaluated our system using ontology mapping and ...

  3. Towards an environmental measurement cloud: delivering pollution awareness to the public

    OpenAIRE

    Federico Domínguez; Samuel Dauwe; Nguyen The Cuong; Dimitri Cariolaro; Abdellah Touhafi; Bart Dhoedt; Dick Botteldooren; Kris Steenhaut

    2014-01-01

    Geosensor networks and sensor webs are two technologies widely used for determining our exposure to pollution levels and ensuring that this information is publicly available. However, most of these networks are independent from each other and often designed for specific domains, hindering the integration of sensor data from different sources. We contributed to the integration of several environmental sensor networks in the context of the IDEA project. The objective of this project was to meas...

  4. The Bone Dysplasia Ontology: integrating genotype and phenotype information in the skeletal dysplasia domain

    Directory of Open Access Journals (Sweden)

    Groza Tudor

    2012-03-01

    Full Text Available Abstract Background Skeletal dysplasias are a rare and heterogeneous group of genetic disorders affecting skeletal development. Patients with skeletal dysplasias suffer from many complex medical issues including degenerative joint disease and neurological complications. Because the data and expertise associated with this field is both sparse and disparate, significant benefits will potentially accrue from the availability of an ontology that provides a shared conceptualisation of the domain knowledge and enables data integration, cross-referencing and advanced reasoning across the relevant but distributed data sources. Results We introduce the design considerations and implementation details of the Bone Dysplasia Ontology. We also describe the different components of the ontology, including a comprehensive and formal representation of the skeletal dysplasia domain as well as the related genotypes and phenotypes. We then briefly describe SKELETOME, a community-driven knowledge curation platform that is underpinned by the Bone Dysplasia Ontology. SKELETOME enables domain experts to use, refine and extend and apply the ontology without any prior ontology engineering experience--to advance the body of knowledge in the skeletal dysplasia field. Conclusions The Bone Dysplasia Ontology represents the most comprehensive structured knowledge source for the skeletal dysplasias domain. It provides the means for integrating and annotating clinical and research data, not only at the generic domain knowledge level, but also at the level of individual patient case studies. It enables links between individual cases and publicly available genotype and phenotype resources based on a community-driven curation process that ensures a shared conceptualisation of the domain knowledge and its continuous incremental evolution.

  5. The enterprise engineering domain

    CSIR Research Space (South Africa)

    De Vries, M

    2015-06-01

    Full Text Available representation of the EE domain within the emerging EE discipline. We used a questionnaire to gather the views of EE and enterprise architecture (EA) researchers and practitioners on the EE domain. The main contributions of this article include: (1...

  6. Domain wall filters

    CERN Document Server

    Bär, O; Neuberger, H; Witzel, O; Baer, Oliver; Narayanan, Rajamani; Neuberger, Herbert; Witzel, Oliver

    2007-01-01

    We propose using the extra dimension separating the domain walls carrying lattice quarks of opposite handedness to gradually filter out the ultraviolet fluctuations of the gauge fields that are felt by the fermionic excitations living in the bulk. This generalization of the homogeneous domain wall construction has some theoretical features that seem nontrivial.

  7. Domain Walls on Singularities

    CERN Document Server

    Halyo, Edi

    2009-01-01

    We describe domain walls that live on $A_2$ and $A_3$ singularities. The walls are BPS if the singularity is resolved and non--BPS if it is deformed and fibered. We show that these domain walls may interpolate between vacua that support monopoles and/or vortices.

  8. Domains of Learning.

    Science.gov (United States)

    Gagne, Robert M.

    In planning educational research, recognition needs to be made of five domains of learning: (1) motor skills, (2) verbal information, (3) intellectual skills, (4) cognitive strategies, and (5) attitudes. In being cognizant of these domains, the researcher is able to distinguish the parts of a content area which are subject to different…

  9. A Domain Analysis Bibliography

    Science.gov (United States)

    1990-06-01

    Bauhaus , a prototype CASE workstation for D-SAPS development. [ARAN88A] Guillermo F. Arango. Domain Engineering for Software Reuse. PhD thesis...34 VITA90B: Domain Analysis within the ISEC Rapid Center 48 CMU/SEI-90-SR-3 Appendix III Alphabetical by Organization/Project BAUHAUS * ALLE87A

  10. Public lighting.

    NARCIS (Netherlands)

    Schreuder, D.A.

    1986-01-01

    The function of public lighting and the relationship between public lighting and accidents are considered briefly as aspects of effective countermeasures. Research needs and recent developments in installation and operational described. Public lighting is an efficient accident countermeasure, but

  11. Subharmonic Fourier domain mode locking.

    Science.gov (United States)

    Eigenwillig, Christoph M; Wieser, Wolfgang; Biedermann, Benjamin R; Huber, Robert

    2009-03-15

    We demonstrate a subharmonically Fourier domain mode-locked wavelength-swept laser source with a substantially reduced cavity fiber length. In contrast to a standard Fourier domain mode-locked configuration, light is recirculated repetitively in the delay line with the optical bandpass filter used as switch. The laser has a fundamental optical round trip frequency of 285 kHz and can be operated at integer fractions thereof (subharmonics). Sweep ranges up to 95 nm full width centred at 1317 nm are achieved at the 1/5th subharmonic. A maximum sensitivity of 116 dB and an axial resolution of 12 microm in air are measured at an average sweep power of 12 mW. A sensitivity roll-off of 11 dB over 4 mm and 25 dB over 10 mm is observed and optical coherence tomography imaging is demonstrated. Besides the advantage of a reduced fiber length, subharmonic Fourier domain mode locking (shFDML) enables simple scaling of the sweep speed by extracting light from the delay part of the resonator. A sweep rate of 570 kHz is achieved. Characteristic features of shFDML operation, such as power leakage during fly-back and cw breakthrough, are investigated.

  12. A SIMPLIFIED MODEL FOR DOMAIN SWITCHING OF FERROELECTRIC CRYSTAL

    Institute of Scientific and Technical Information of China (English)

    HeYansong; FanJinghong

    2004-01-01

    Domain switching is the main source of nonlinear characteristics in ferroelectrics. According to crystal plasticity theory, the domains and domain switching systems for perovskitetype structure ferroelectrics are defined. Considering the traverse motion performance of domain wall, a rather simplified form of evolution law about incremental of volume fraction during domain switching has been developed. The main factors, which exert an influence on domain switching, such as material parameters, domain wall motion history, kind of domain switching (180° or 90°) and volume fraction, could be addressed. The hysteresis loops of spontaneous electric polarization as a function of electric field, the butterfly shaped strain versus electric field curve and the platform relations between spontaneous polarization and stress, as well as the longitudinal strain and stress, are well simulated and discussed.

  13. Exposing public health surveillance data using existing standards.

    Science.gov (United States)

    Turbelin, Clément; Boëlle, Pierre-Yves

    2013-01-01

    With the growing use of information technologies, an increased volume of data is produced in Public Health Surveillance, enabling utilization of new data sources and analysis methods. Public health and research will benefit from the use of data standards promoting harmonization and data description through metadata. No data standard has yet been universally accepted for exchanging public health data. In this work, we implemented two existing standards eligible to expose public health data: Statistical Data and Metadata Exchange - Health Domain (SDMX-HD) proposed by the World Health Organization and Open Data Protocol (OData) proposed by Microsoft Corp. SDMX-HD promotes harmonization through controlled vocabulary and predefined data structure suitable for public health but requires important investment, while OData, a generic purpose standard, proposes a simple way to expose data with minimal documentation and end-user integration tools. The two solutions were implemented and are publicly available at http://sdmx.sentiweb.fr and http://odata.sentiweb.fr. These solutions show that data sharing and interoperability are already possible in Public Health Surveillance.

  14. Magnified time-domain ghost imaging

    Science.gov (United States)

    Ryczkowski, Piotr; Barbier, Margaux; Friberg, Ari T.; Dudley, John M.; Genty, Goëry

    2017-04-01

    Ghost imaging allows the imaging of an object without directly seeing this object. Originally demonstrated in the spatial domain, it was recently shown that ghost imaging can be transposed into the time domain to detect ultrafast signals, even in the presence of distortion. We propose and experimentally demonstrate a temporal ghost imaging scheme which generates a 5× magnified ghost image of an ultrafast waveform. Inspired by shadow imaging in the spatial domain and building on the dispersive Fourier transform of an incoherent supercontinuum in an optical fiber, the approach overcomes the resolution limit of standard time-domain ghost imaging generally imposed by the detectors speed. The method can be scaled up to higher magnification factors using longer fiber lengths and light source with shorter duration.

  15. On Physicians' Occupational Stress Source and Influence in Public and Private Hospitals%公立医院与民营医院医师职业压力源及影响因素比较分析

    Institute of Scientific and Technical Information of China (English)

    孙杰杰; 王高峰

    2015-01-01

    Occupational burnout refers to a series of physiological and psychological syndromes because of the stress response for the persistent source of interpersonal crisis and emotional tension under special work environment. Through the analytical comparison of occupational stress between the doctors in the public and private hospitals, it has been found that they, though in the same position as the medical workers, suffer different sources of occupational stress and other factors under different system, which calls for attention of the administrators in hospitals and they should make the corresponding policies and measures to reduce the occupational burnout for doctors.%职业倦怠是指在特定的工作环境中,持续的表现出对人际关系危机源和情感紧张源的应激反应而由此展现出来一系列生理、心理综合症.通过对公立医院与民营医院医生职业压力的比较分析,发现同是作为医护人员,但是在不同体制下的职业压力源及其影响因素是不同的.应引起医院管理者的关注,并制定相关的政策,采取针对性的措施来降低医生的职业倦怠感.

  16. Public Broadcasting.

    Science.gov (United States)

    Shooshan, Harry M.; Arnheim, Louise

    This paper, the second in a series exploring future options for public policy in the communications and information arenas, examines some of the issues underlying public broadcasting, primarily public television. It advances two reasons why quality local public television programming is scarce: funds for the original production of programming have…

  17. Broadband Beamspace DOA Estimation: Frequency-Domain and Time-Domain Processing Approaches

    Directory of Open Access Journals (Sweden)

    Yan Shefeng

    2007-01-01

    Full Text Available Frequency-domain and time-domain processing approaches to direction-of-arrival (DOA estimation for multiple broadband far field signals using beamspace preprocessing structures are proposed. The technique is based on constant mainlobe response beamforming. A set of frequency-domain and time-domain beamformers with constant (frequency independent mainlobe response and controlled sidelobes is designed to cover the spatial sector of interest using optimal array pattern synthesis technique and optimal FIR filters design technique. These techniques lead the resulting beampatterns higher mainlobe approximation accuracy and yet lower sidelobes. For the scenario of strong out-of-sector interfering sources, our approaches can form nulls or notches in the direction of them and yet guarantee that the mainlobe response of the beamformers is constant over the design band. Numerical results show that the proposed time-domain processing DOA estimator has comparable performance with the proposed frequency-domain processing method, and that both of them are able to resolve correlated source signals and provide better resolution at lower signal-to-noise ratio (SNR and lower root-mean-square error (RMSE of the DOA estimate compared with the existing method. Our beamspace DOA estimators maintain good DOA estimation and spatial resolution capability in the scenario of strong out-of-sector interfering sources.

  18. Domain-Specific Multimodeling

    DEFF Research Database (Denmark)

    Hessellund, Anders

    Enterprise systems are complex artifacts. They are hard to build, manage, understand, and evolve. Existing software development paradigms fail to properly address challenges such as system size, domain complexity, and software evolution when development is scaled to enterprise systems. We propose...... domain-specific multimodeling as a development paradigm to tackle these challenges in a language-oriented manner. The different concerns of a system are conceptually separated and made explicit as independent domain-specific languages. This approach increases productivity and quality by raising...... the overall level of abstraction. It does, however, also introduce a new problem of coordinating multiple different languages in a single system. We call this problem the coordination problem. In this thesis, we present the coordination method for domain-specific multimodeling that explicitly targets...

  19. Conserved Domain Database (CDD)

    Data.gov (United States)

    U.S. Department of Health & Human Services — CDD is a protein annotation resource that consists of a collection of well-annotated multiple sequence alignment models for ancient domains and full-length proteins.

  20. DSRM: An Ontology Driven Domain Scientific Data Retrieval Model

    Directory of Open Access Journals (Sweden)

    Jianghua Li

    2013-09-01

    Full Text Available With the development of information technology, a large number of domain scientific data have been accumulated with the characteristics of distribution and heterogeneity. It has important significance to acquire exact scientific data from multiple data sources for cooperative research. The existing data integration and information retrieval techniques cannot solve the problems of data semantic heterogeneity and retrieval inaccuracy very well. In this paper, an ontology driven domain scientific data retrieval model is proposed, which uses domain ontology to describe user query and queried data. User query is posed on domain ontology schema. Data retrieval for distributed and heterogeneous data sources is realized through constructing mapping relations between them and domain ontology schema. We developed a prototype for material scientific data, and the experimental results show that the proposed model is effective. Our model can also provide some means of use for reference to other domain scientific data retrieval.

  1. BUDGET AND PUBLIC DEBT

    Directory of Open Access Journals (Sweden)

    Morar Ioan Dan

    2014-12-01

    Full Text Available The issue of public budgeting is an important issue for public policy of the state, for the simple reason that no money from the state budget can not promote public policy. Budgetary policy is official government Doctrine vision mirror and also represents a starting point for other public policies, which in turn are financed by the public budget. Fiscal policy instruments at its disposal handles the public sector in its structure, and the private sector. Tools such as grant, budgetary allocation, tax, welfare under various forms, direct investments and not least the state aid is used by the state through their budgetary policies to directly and indirectly infuence sector, and the private. Fiscal policies can be grouped according to the structure of the public sector in these components, namely fiscal policy, budgeting and resource allocation policies for financing the budget deficit. An important issue is the financing of the budget deficit budgetary policies. There are two funding possibilities, namely, the higher taxes or more axles site and enter the second call to public loans. Both options involve extra effort from taxpayers in the current fiscal year when they pay higher taxes or a future period when public loans will be repaid. We know that by virtue of "fiscal pact" structural deficits of the member countries of the EU are limited by the European Commission, according to the macro structural stability and budget of each Member State. This problem tempers to some extent the governments of the Member States budgetary appetite, but does not solve the problem of chronic budget deficits. Another issue addressed in this paper is related to the public debt, the absolute amount of its relative level of public datoriri, about the size of GDP, public debt financing and its repayment sources. Sources of public debt issuance and monetary impact on the budget and monetary stability are variables that must underpin the justification of budgetary

  2. Transport realization of high resolution fossil fuel CO2 emissions in an urban domain

    Science.gov (United States)

    Zhou, Y.; Gurney, K. R.

    2010-12-01

    CO2 emissions from fossil fuel combustion are the largest net annual flux of carbon in the earth atmosphere system and energy consumption in urban environments is a major contributor to total fossil fuel CO2 emissions. Understanding how the emissions are transported in space and time, especially in urban environments and resolving contributions from individual sources of fossil-fuel CO2 emissions are an essential component of a complete reliable monitoring, reporting, and verification (MRV) system that are emerging at local, national, and international levels. As grid models are not designed to resolve concentrations on local scales, we tested the transport realization of fossil fuel CO2 emissions using the Hybrid Single Particle Lagrangian Integrated Trajectory Model (HYSPLIT) model, a commonly used transport algorithm for small domain air quality studies, in the greater Indianapolis region, USA. A typical 24-hour point, mobile, and area sources fossil fuel CO2 emissions in four seasons (spring, summer, autumn and winter) were processed from hourly emissions data and prepared at 500-meter spatial resolution for the model inputs together with other parameters. The simulation result provides a complete 4-dimensional concentration matrix transported from all sources for the urban domain which can be analyzed in order to isolate individual sources or test sampling strategies for verification at selected time periods. In addition, the urban 4-dimensional concentration matrix can be visualized in a virtual environment, which provides a powerful education and outreach platform for researchers, students, and public.

  3. Strongly Semicontinuous Domains and Semi-FS Domains

    Directory of Open Access Journals (Sweden)

    Qingyu He

    2014-01-01

    Full Text Available We are mainly concerned with some special kinds of semicontinuous domains and relationships between them. New concepts of strongly semicontinuous domains, meet semicontinuous domains and semi-FS domains are introduced. It is shown that a dcpo L is strongly semicontinuous if and only if L is semicontinuous and meet semicontinuous. It is proved that semi-FS domains are strongly semicontinuous. Some interpolation properties of semiway-below relations in (strongly semicontinuous bc-domains are given. In terms of these properties, it is proved that strongly semicontinuous bc-domains, in particular strongly semicontinuous lattices, are all semi-FS domains.

  4. Power source roadmaps using bibliometrics and database tomography

    Energy Technology Data Exchange (ETDEWEB)

    Kostoff, R.N.; Pfeil, K.M. [Office of Naval Research, Arlington, VA (United States); Tshiteya, R. [DDL OMNI Engineering, Mclean, VA (United States); Humenik, J.A. [Noesis Inc., Manassas, VA (United States); Karypis, G. [University of Minnesota, Minneapolis, MN (United States). Computer Science and Engineering Dept.

    2005-04-01

    Database Tomography (DT) is a textual database analysis system consisting of two major components: (1) algorithms for extracting multi-word phrase frequencies and phrase proximities (physical closeness of the multi-word technical phrases) from any type of large textual database, to augment (2) interpretative capabilities of the expert human analyst. DT was used to derive technical intelligence from a Power Sources database derived from the Science Citation Index. Phrase frequency analysis by the technical domain experts provided the pervasive technical themes of the Power Sources database, and the phrase proximity analysis provided the relationships among the pervasive technical themes. Bibliometric analysis of the Power Sources literature supplemented the DT results with author/journal/institution/country publication and citation data. (author)

  5. Indian Education: Funding Sources for Public Schools.

    Science.gov (United States)

    Lockart, Barbetta L.

    Although provisions in countless treaties have mandated Indian educational services, federal and state governments were for many years unenthusiastic about accepting the responsibility for educating the Indian people. Inadequately funded educational services provided by the Bureau of Indian Affairs did little to reflect the realities and needs of…

  6. Situation Concerning Public Information about and Involvement in the Decision-Making Processes in the Nuclear Sector. Public Opinion Review.

    Energy Technology Data Exchange (ETDEWEB)

    Prades, A.; Sala, R.; Lopez, M.

    2006-07-01

    This report summarizes the CIEMAT's contribution to the study {sup S}ituation concerning Public Information about and Involvement in the Decision-Making Processes in the Nuclear Sector{sup ,} contract number TREN/ 04/NUC/ S07.39556 between the European Commission and Mutadis Consultants. The research was composed by Mutadis Consultants and CEPN (Nuclear Protection Evaluation Centre) (France), University of Aberdeen (UK) and CIEMAT (Spain). The objective of the project was to build a detailed overview of the EU situation regarding information and participation practices in the nuclear domain, provide an elaborated assessment, and to produce reporting and recommendations in the field. CIEMAT contribution' focused on the review of public opinion polis. Thus, Eurobarometers Standard Surveys (EBs) were analysed to report about the European citizens' public opinion regarding public Information and participation in the nuclear field. Additionally, the International Social Survey Program (ISSP), and some additional national polis were analysed. In terms of the EU public opinion, the follow up of the public information and participation domains receiving as much attention as necessary. Extremely few questions dealing with the subject were identified in the Eurobarometers, the national polis and the ISSP (International Social Survey Program) surveys reviewed in this study. An unambiguous illustration of this lack of attention is the fact that no questions dealing with public participation issues emerged in the {sup n}uclear EBs{sup u}ntil 1998. Even though, Eurobarometers (EBs) still provide an invaluable source of information on the topics we are interested on at the EU allowing longitudinal descriptions (trend analysis) of some key issues in our area of interest. (Author) 11 refs.

  7. Domains in Ferroelectric Nanostructures

    Science.gov (United States)

    Gregg, Marty

    2010-03-01

    Ferroelectric materials have great potential in influencing the future of small scale electronics. At a basic level, this is because ferroelectric surfaces are charged, and so interact strongly with charge-carrying metals and semiconductors - the building blocks for all electronic systems. Since the electrical polarity of the ferroelectric can be reversed, surfaces can both attract and repel charges in nearby materials, and can thereby exert complete control over both charge distribution and movement. It should be no surprise, therefore, that microelectronics industries have already looked very seriously at harnessing ferroelectric materials in a variety of applications, from solid state memory chips (FeRAMs) to field effect transistors (FeFETs). In all such applications, switching the direction of the polarity of the ferroelectric is a key aspect of functional behavior. The mechanism for switching involves the field-induced nucleation and growth of domains. Domain coarsening, through domain wall propagation, eventually causes the entire ferroelectric to switch its polar direction. It is thus the existence and behavior of domains that determine the switching response, and ultimately the performance of the ferroelectric device. A major issue, associated with the integration of ferroelectrics into microelectronic devices, has been that the fundamental properties associated with ferroelectrics, when in bulk form, appear to change quite dramatically and unpredictably when at the nanoscale: new modes of behaviour, and different functional characteristics from those seen in bulk appear. For domains, in particular, the proximity of surfaces and boundaries have a dramatic effect: surface tension and depolarizing fields both serve to increase the equilibrium density of domains, such that minor changes in scale or morphology can have major ramifications for domain redistribution. Given the importance of domains in dictating the overall switching characteristics of a device

  8. Chemical Characteristics, Water Sources and Pathways, and Age Distribution of Ground Water in the Contributing Recharge Area of a Public-Supply Well near Tampa, Florida, 2002-05

    Science.gov (United States)

    Katz, Brian G.; Crandall, Christy A.; Metz, Patricia A.; McBride, William S.; Berndt, Marian P.

    2007-01-01

    In 2001, the National Water-Quality Assessment (NAWQA) Program of the U.S. Geological Survey began a series of studies on the transport of anthropogenic and natural contaminants (TANC) to public-supply wells. The main goal of the TANC program was to better understand the source, transport, and receptor factors that control contaminant movement to public-supply wells in representative aquifers of the United States. Studies were first conducted at regional scales at four of the eight TANC study areas during 2002-03 and at small (local) scales during 2003-05 in California, Nebraska, Connecticut, and Florida. In the Temple Terrace study area near Tampa, Florida, multiple chemical indicators and geochemical and ground-water flow modeling techniques were used to assess the vulnerability of a public-supply well in the karstic Upper Floridan aquifer to contamination from anthropogenic and naturally occurring contaminants. During 2003-05, water samples were collected from the public-supply well and 13 surrounding monitoring wells that all tap the Upper Floridan aquifer, and from 15 monitoring wells in the overlying surficial aquifer system and the intermediate confining unit that are located within the modeled ground-water contributing recharge area of the public-supply well. Six volatile organic compounds and four pesticides were detected in trace concentrations (well below drinking-water standards) in water from the public-supply well, which had an open interval from 36 to 53 meters below land surface. These contaminants were detected more frequently in water samples from monitoring wells in the overlying clastic surficial aquifer system than in water from monitoring wells in the Upper Floridan aquifer in the study area. Likewise, nitrate-N concentrations in the public-supply well (0.72-1.4 milligrams per liter) were more similar to median concentrations in the oxic surficial aquifer system (2.1 milligrams per liter) than to median nitrate-N concentrations in the anoxic

  9. Optical time-domain mixer

    Science.gov (United States)

    Valley, George C.; Sefler, George A.

    2010-08-01

    We simulate an optical time-domain mixer that can be used to make a photonic analog-to-digital converter (ADC) or a digital demodulator for high-speed optical communications signals. In the basic mixer, a high frequency RF signal modulates a repetitively chirped optical carrier; this RF/optical waveform then is dispersed in one transverse dimension, and imaged onto a 2-dimensional transparency or spatial light modulator whose pixels are modulated with randomly chosen transmission or reflection coefficients (the optical mixing matrix). Following transmission through or reflection from the mixing matrix, the optical waveform from each row of the matrix is recombined and directed to a photodiode and electronics that integrate over the repetition period of the chirped source. Finally, each of these signals is digitized by an independent ADC sampling at a rate equal to the pulse repetition rate of the chirp source. A digital replica of the input RF signal can be recovered by digital signal processing from the digital output of the ADCs and the values of the transmission or reflection coefficients of the mixing matrix. The effective sampling rate is given by the number of pixels per row of the mixing matrix times the repetition rate of the chirp source while the effective resolution is controlled by the resolution of the electronic ADCs and the distortions introduced by the optical mixing process.

  10. Just how versatile are domains?

    Directory of Open Access Journals (Sweden)

    Bornberg-Bauer Erich

    2008-10-01

    Full Text Available Abstract Background Creating new protein domain arrangements is a frequent mechanism of evolutionary innovation. While some domains always form the same combinations, others form many different arrangements. This ability, which is often referred to as versatility or promiscuity of domains, its a random evolutionary model in which a domain's promiscuity is based on its relative frequency of domains. Results We show that there is a clear relationship across genomes between the promiscuity of a given domain and its frequency. However, the strength of this relationship differs for different domains. We thus redefine domain promiscuity by defining a new index, DV I ("domain versatility index", which eliminates the effect of domain frequency. We explore links between a domain's versatility, when unlinked from abundance, and its biological properties. Conclusion Our results indicate that domains occurring as single domain proteins and domains appearing frequently at protein termini have a higher DV I. This is consistent with previous observations that the evolution of domain re-arrangements is primarily driven by fusion of pre-existing arrangements and single domains as well as loss of domains at protein termini. Furthermore, we studied the link between domain age, defined as the first appearance of a domain in the species tree, and the DV I. Contrary to previous studies based on domain promiscuity, it seems as if the DV I is age independent. Finally, we find that contrary to previously reported findings, versatility is lower in Eukaryotes. In summary, our measure of domain versatility indicates that a random attachment process is sufficient to explain the observed distribution of domain arrangements and that several views on domain promiscuity need to be revised.

  11. Public participation in GIS via mobile applications

    Science.gov (United States)

    Brovelli, Maria Antonia; Minghini, Marco; Zamboni, Giorgio

    2016-04-01

    Driven by the recent trends in the GIS domain including Volunteered Geographic Information, geo-crowdsourcing and citizen science, and fostered by the constant technological advances, collection and dissemination of geospatial information by ordinary people has become commonplace. However, applications involving user-generated geospatial content show dramatically diversified patterns in terms of incentive, type and level of participation, purpose of the activity, data/metadata provided and data quality. This study contributes to this heterogeneous context by investigating public participation in GIS within the field of mobile-based applications. Results not only show examples of how to technically build GIS applications enabling user collection and interaction with geospatial data, but they also draw conclusions about the methods and needs of public participation. We describe three projects with different scales and purposes in the context of urban monitoring and planning, and tourism valorisation. In each case, an open source architecture is used, allowing users to exploit their mobile devices to collect georeferenced information. This data is then made publicly available on specific Web viewers. Analysis of user involvement in these projects provides insights related to participation patterns which suggests some generalized conclusions.

  12. Public Schools

    Data.gov (United States)

    Department of Homeland Security — This Public Schools feature dataset is composed of all Public elementary and secondary education in the United States as defined by the Common Core of Data, National...

  13. Axion domain wall baryogenesis

    Energy Technology Data Exchange (ETDEWEB)

    Daido, Ryuji; Kitajima, Naoya [Department of Physics, Tohoku University,Sendai 980-8578 (Japan); Takahashi, Fuminobu [Department of Physics, Tohoku University,Sendai 980-8578 (Japan); Kavli IPMU, TODIAS, University of Tokyo,Kashiwa 277-8583 (Japan)

    2015-07-28

    We propose a new scenario of baryogenesis, in which annihilation of axion domain walls generates a sizable baryon asymmetry. Successful baryogenesis is possible for a wide range of the axion mass and decay constant, m≃10{sup 8}–10{sup 13} GeV and f≃10{sup 13}–10{sup 16} GeV. Baryonic isocurvature perturbations are significantly suppressed in our model, in contrast to various spontaneous baryogenesis scenarios in the slow-roll regime. In particular, the axion domain wall baryogenesis is consistent with high-scale inflation which generates a large tensor-to-scalar ratio within the reach of future CMB B-mode experiments. We also discuss the gravitational waves produced by the domain wall annihilation and its implications for the future gravitational wave experiments.

  14. Public lighting.

    NARCIS (Netherlands)

    2011-01-01

    Visual perception is very important for road users and in the dark it can be facilitated by public lighting. Public lighting has a mostly positive road safety effect. Installing public lighting on roads that were previously unlit generally results in fewer and less serious crashes. This effect seems

  15. Withdrawal of Public Lands for Wildlife Purposes

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — A recent BLM survey has determined that the 45.33-acre Pig Island, located in St. Joseph Bay, Gulf County, Florida, is public domain. The island has an unusual...

  16. Introduction to the Paradigm Struggle in Public Relations.

    Science.gov (United States)

    Botan, Carl

    1993-01-01

    Describes the ongoing state of change in the domain of public relations, with special attention to model shifts. Defines model struggles and discusses the emergence of international public relations along with other recent trends. (HB)

  17. NREL Response to the Report 'Study of the Effects on Employment of Public Aid to Renewable Energy Sources' from King Juan Carlos University (Spain) (White Paper)

    Energy Technology Data Exchange (ETDEWEB)

    Lantz, E.; Tegen, S.

    2009-08-01

    Job generation has been a part of the national dialogue surrounding energy policy and renewable energy (RE) for many years. RE advocates tout the ability of renewable energy to support new job opportunities in rural America and the manufacturing sector. Others argue that spending on renewable energy is an inefficient allocation of resources and can result in job losses in the broader economy. The report, Study of the Effects on Employment of Public Aid to Renewable Energy Sources, from King Juan Carlos University in Spain, is one recent addition to this debate. This report asserts that, on average, every renewable energy job in Spain 'destroyed' 2.2 jobs in the broader Spanish economy. The authors also apply this ratio to the U.S. context to estimate expected job loss from renewable energy development and policy in the United States. This memo discusses fundamental and technical limitations of the analysis by King Juan Carlos University and notes critical assumptions implicit in the ultimate conclusions of their work. The memo also includes a review of traditional employment impact analyses that rely on accepted, peer-reviewed methodologies, and it highlights specific variables that can significantly influence the results of traditional employment impact analysis.

  18. 41 CFR 102-173.10 - What is the authority or jurisdiction of the Internet GOV Domain?

    Science.gov (United States)

    2010-07-01

    ... jurisdiction of the Internet GOV Domain? 102-173.10 Section 102-173.10 Public Contracts and Property Management... TELECOMMUNICATIONS 173-INTERNET GOV DOMAIN General § 102-173.10 What is the authority or jurisdiction of the Internet GOV Domain? Jurisdiction of the Internet GOV (dot-gov) domain was delegated to the General...

  19. Submicron Resolution Spectral-Domain Optical Coherence Tomography

    KAUST Repository

    Alarousu, Erkki

    2013-11-14

    Apparatuses and systems for submicron resolution spectral-domain optical coherence tomography (OCT) are disclosed. The system may use white light sources having wavelengths within 400-1000 nanometers, and achieve resolution below 1 .mu.m. The apparatus is aggregated into a unitary piece, and a user can connect the apparatus to a user provided controller and/or light source. The light source may be a supercontinuum source.

  20. Architecture for an advanced biomedical collaboration domain for the European paediatric cancer research community (ABCD-4-E).

    Science.gov (United States)

    Nitzlnader, Michael; Falgenhauer, Markus; Gossy, Christian; Schreier, Günter

    2015-01-01

    Today, progress in biomedical research often depends on large, interdisciplinary research projects and tailored information and communication technology (ICT) support. In the context of the European Network for Cancer Research in Children and Adolescents (ENCCA) project the exchange of data between data source (Source Domain) and data consumer (Consumer Domain) systems in a distributed computing environment needs to be facilitated. This work presents the requirements and the corresponding solution architecture of the Advanced Biomedical Collaboration Domain for Europe (ABCD-4-E). The proposed concept utilises public as well as private cloud systems, the Integrating the Healthcare Enterprise (IHE) framework and web-based applications to provide the core capabilities in accordance with privacy and security needs. The utility of crucial parts of the concept was evaluated by prototypic implementation. A discussion of the design indicates that the requirements of ENCCA are fully met. A whole system demonstration is currently being prepared to verify that ABCD-4-E has the potential to evolve into a domain-bridging collaboration platform in the future.

  1. BIOMedical Search Engine Framework: Lightweight and customized implementation of domain-specific biomedical search engines.

    Science.gov (United States)

    Jácome, Alberto G; Fdez-Riverola, Florentino; Lourenço, Anália

    2016-07-01

    Text mining and semantic analysis approaches can be applied to the construction of biomedical domain-specific search engines and provide an attractive alternative to create personalized and enhanced search experiences. Therefore, this work introduces the new open-source BIOMedical Search Engine Framework for the fast and lightweight development of domain-specific search engines. The rationale behind this framework is to incorporate core features typically available in search engine frameworks with flexible and extensible technologies to retrieve biomedical documents, annotate meaningful domain concepts, and develop highly customized Web search interfaces. The BIOMedical Search Engine Framework integrates taggers for major biomedical concepts, such as diseases, drugs, genes, proteins, compounds and organisms, and enables the use of domain-specific controlled vocabulary. Technologies from the Typesafe Reactive Platform, the AngularJS JavaScript framework and the Bootstrap HTML/CSS framework support the customization of the domain-oriented search application. Moreover, the RESTful API of the BIOMedical Search Engine Framework allows the integration of the search engine into existing systems or a complete web interface personalization. The construction of the Smart Drug Search is described as proof-of-concept of the BIOMedical Search Engine Framework. This public search engine catalogs scientific literature about antimicrobial resistance, microbial virulence and topics alike. The keyword-based queries of the users are transformed into concepts and search results are presented and ranked accordingly. The semantic graph view portraits all the concepts found in the results, and the researcher may look into the relevance of different concepts, the strength of direct relations, and non-trivial, indirect relations. The number of occurrences of the concept shows its importance to the query, and the frequency of concept co-occurrence is indicative of biological relations

  2. Domain wall stability in ferroelectrics with space charges

    Energy Technology Data Exchange (ETDEWEB)

    Zuo, Yinan, E-mail: zuo@mfm.tu-darmstadt.de; Genenko, Yuri A.; Klein, Andreas; Stein, Peter; Xu, Baixiang [Institute of Materials Science, Technische Universität Darmstadt, D-64287 Darmstadt (Germany)

    2014-02-28

    Significant effect of semiconductor properties on domain configurations in ferroelectrics is demonstrated, especially in the case of doped materials. Phase field simulations are performed for ferroelectrics with space charges due to donors and electronic charge carriers. The free charges introduced thereby can act as a source for charge compensation at domain walls with uncompensated polarization bound charges. Results indicate that the equilibrium position of a domain wall with respect to its rotation in a head-to-head or a tail-to-tail domain configuration depends on the charge defect concentration and the Fermi level position.

  3. On Binding Domains

    NARCIS (Netherlands)

    Everaert, M.B.H.

    2005-01-01

    In this paper I want to explore reasons for replacing Binding Theory based on the anaphor-pronoun dichotomy by a Binding Theory allowing more domains restricting/defining anaphoric dependencies. This will, thus, have consequences for the partitioning of anaphoric elements, presupposing more types of

  4. Cellulose binding domain proteins

    Science.gov (United States)

    Shoseyov, Oded; Shpiegl, Itai; Goldstein, Marc; Doi, Roy

    1998-01-01

    A cellulose binding domain (CBD) having a high affinity for crystalline cellulose and chitin is disclosed, along with methods for the molecular cloning and recombinant production thereof. Fusion products comprising the CBD and a second protein are likewise described. A wide range of applications are contemplated for both the CBD and the fusion products, including drug delivery, affinity separations, and diagnostic techniques.

  5. Domain: Labour market

    NARCIS (Netherlands)

    Oude Mulders, J.; Wadensjö, E.; Hasselhorn, H.M.; Apt, W.

    This domain chapter is dedicated to summarize research on the effects of labour market contextual factors on labour market participation of older workers (aged 50+) and identify research gaps. While employment participation and the timing of (early) retirement is often modelled as an individual

  6. Normed Domains of Holomorphy

    Directory of Open Access Journals (Sweden)

    Steven G. Krantz

    2010-01-01

    Full Text Available We treat the classical concept of domain of holomorphy in ℂn when the holomorphic functions considered are restricted to lie in some Banach space. Positive and negative results are presented. A new view of the case n=1 is considered.

  7. Domain: Labour market

    NARCIS (Netherlands)

    Oude Mulders, J.; Wadensjö, E.; Hasselhorn, H.M.; Apt, W.

    2015-01-01

    This domain chapter is dedicated to summarize research on the effects of labour market contextual factors on labour market participation of older workers (aged 50+) and identify research gaps. While employment participation and the timing of (early) retirement is often modelled as an individual deci

  8. 41 CFR 102-173.5 - What is Internet GOV Domain?

    Science.gov (United States)

    2010-07-01

    ... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false What is Internet GOV... Regulations System (Continued) FEDERAL MANAGEMENT REGULATION TELECOMMUNICATIONS 173-INTERNET GOV DOMAIN General § 102-173.5 What is Internet GOV Domain? Internet GOV Domain refers to the Internet...

  9. Public health workforce taxonomy.

    Science.gov (United States)

    Boulton, Matthew L; Beck, Angela J; Coronado, Fátima; Merrill, Jacqueline A; Friedman, Charles P; Stamas, George D; Tyus, Nadra; Sellers, Katie; Moore, Jean; Tilson, Hugh H; Leep, Carolyn J

    2014-11-01

    Thoroughly characterizing and continuously monitoring the public health workforce is necessary for ensuring capacity to deliver public health services. A prerequisite for this is to develop a standardized methodology for classifying public health workers, permitting valid comparisons across agencies and over time, which does not exist for the public health workforce. An expert working group, all of whom are authors on this paper, was convened during 2012-2014 to develop a public health workforce taxonomy. The purpose of the taxonomy is to facilitate the systematic characterization of all public health workers while delineating a set of minimum data elements to be used in workforce surveys. The taxonomy will improve the comparability across surveys, assist with estimating duplicate counting of workers, provide a framework for describing the size and composition of the workforce, and address other challenges to workforce enumeration. The taxonomy consists of 12 axes, with each axis describing a key characteristic of public health workers. Within each axis are multiple categories, and sometimes subcategories, that further define that worker characteristic. The workforce taxonomy axes are occupation, workplace setting, employer, education, licensure, certification, job tasks, program area, public health specialization area, funding source, condition of employment, and demographics. The taxonomy is not intended to serve as a replacement for occupational classifications but rather is a tool for systematically categorizing worker characteristics. The taxonomy will continue to evolve as organizations implement it and recommend ways to improve this tool for more accurate workforce data collection.

  10. Iterative Re-Weighted Instance Transfer for Domain Adaptation

    Science.gov (United States)

    Paul, A.; Rottensteiner, F.; Heipke, C.

    2016-06-01

    Domain adaptation techniques in transfer learning try to reduce the amount of training data required for classification by adapting a classifier trained on samples from a source domain to a new data set (target domain) where the features may have different distributions. In this paper, we propose a new technique for domain adaptation based on logistic regression. Starting with a classifier trained on training data from the source domain, we iteratively include target domain samples for which class labels have been obtained from the current state of the classifier, while at the same time removing source domain samples. In each iteration the classifier is re-trained, so that the decision boundaries are slowly transferred to the distribution of the target features. To make the transfer procedure more robust we introduce weights as a function of distance from the decision boundary and a new way of regularisation. Our methodology is evaluated using a benchmark data set consisting of aerial images and digital surface models. The experimental results show that in the majority of cases our domain adaptation approach can lead to an improvement of the classification accuracy without additional training data, but also indicate remaining problems if the difference in the feature distributions becomes too large.

  11. Enhancing the performances of ECR Ion Sources

    Energy Technology Data Exchange (ETDEWEB)

    Alton, G.D.; Liu, Y.

    1999-03-29

    The performances of ECR ion sources can be enhanced in the spatial domain by tailoring the central magnetic field so that it is uniformly distributed over a large plasma volume and is of magnitude so as to be in resonance with single frequency microwave radiation. Analogously, the performances of conventional minimum-B ECR ion sources can be enhanced in the frequency domain by injecting multiple discrete frequency or broadband microwave radiation into their plasma volumes. In this report, examples of both the spatial-and frequency-domain techniques will be given. For example, the design aspects of an all permanent-magnet ''volume-type'' (spatial-domain) ECR ion source will be described and the effects of injecting multiple frequencies (frequency-domain) on the charge-state-distributions extracted from a conventional minimum-B ECR ion source will be presented.

  12. Depth:Illustrate Arts Management and Its Incubation Education From the Theoretical Domain of Public Virtue%纵深:从文化公德自律理论阈阐释艺术管理及其孵化教育

    Institute of Scientific and Technical Information of China (English)

    孙海垠; 唐小恒; 武定宇

    2011-01-01

    文化公德自律是艺术管理纵深的文化自律概念,选择托克维尔文化公德自律主题来阐释艺术管理及教育谋划,可助推文化公德自律介入艺术管理的运营和高等孵化教育的实际应用。托克维尔文化公德自律理论的平等不是经济意义上的均平,而是指身份的平等、权利的平等、机会的平等,是艺术运营触及艺术价值核心的重要环节;文化公德自律通过对自利的规范和引导,保存了艺术群体对自由主义的热爱;通过对艺术运营环节的规范和约束,使其价值链条更为宽广,既可以承载本位的利益,又可以容纳彼此的利益;既可以承载艺术经纪利益,又可以容纳公共利益。文化公德自律理论阈相关概念的辨析对于"艺术经济建设"及学科内的高等孵化教育具有现实指导意义。%Public virtue is a background concept of arts management.Using the theme of Tocqueville public virtue to illustrate arts management and educational planning may promote the application of public virtue in the operation of arts management and the incubation education of higher education.The equality in Tocqueville public virtue theory is not the egalitarianism in an economic sense,but the equality in identity,equality in rights and equality in opportunities and is an important link in which arts operation touches the core of artistic value.Through self-interested regulation and guidance,public virtue preserves the love of artists for liberalism.Through regulation and restriction on the links of arts operation,its value chain becomes even broader and may not only carry its own interests but also include others',and may not only carry art broker's interests but also include public interests.The differentiation and analysis of related concepts in the theoretical domain of public virtue plays a realistic role in guiding "artistic economic construction" and higher incubation education in the discipline.

  13. The Privatization of Public University Research Libraries

    Science.gov (United States)

    Franklin, Brinley

    2007-01-01

    Are we witnessing the privatization of public university research libraries? There is convincing evidence that, in an era of decreasing state support for public higher education, public universities have begun to resemble private universities, particularly in their sources of revenue. A number of indicators demonstrate that public universities,…

  14. Public Participation Guide: Electronic Democracy

    Science.gov (United States)

    Electronic democracy describes a wide range of interactive tools that embrace existing and emergent media sources as a forum for allowing members of the public to express opinions and seek to influence decision-making.

  15. Gene and protein nomenclature in public databases

    Directory of Open Access Journals (Sweden)

    Zimmer Ralf

    2006-08-01

    Full Text Available Abstract Background Frequently, several alternative names are in use for biological objects such as genes and proteins. Applications like manual literature search, automated text-mining, named entity identification, gene/protein annotation, and linking of knowledge from different information sources require the knowledge of all used names referring to a given gene or protein. Various organism-specific or general public databases aim at organizing knowledge about genes and proteins. These databases can be used for deriving gene and protein name dictionaries. So far, little is known about the differences between databases in terms of size, ambiguities and overlap. Results We compiled five gene and protein name dictionaries for each of the five model organisms (yeast, fly, mouse, rat, and human from different organism-specific and general public databases. We analyzed the degree of ambiguity of gene and protein names within and between dictionaries, to a lexicon of common English words and domain-related non-gene terms, and we compared different data sources in terms of size of extracted dictionaries and overlap of synonyms between those. The study shows that the number of genes/proteins and synonyms covered in individual databases varies significantly for a given organism, and that the degree of ambiguity of synonyms varies significantly between different organisms. Furthermore, it shows that, despite considerable efforts of co-curation, the overlap of synonyms in different data sources is rather moderate and that the degree of ambiguity of gene names with common English words and domain-related non-gene terms varies depending on the considered organism. Conclusion In conclusion, these results indicate that the combination of data contained in different databases allows the generation of gene and protein name dictionaries that contain significantly more used names than dictionaries obtained from individual data sources. Furthermore, curation of

  16. Hybrid time/frequency domain modeling of nonlinear components

    DEFF Research Database (Denmark)

    Wiechowski, Wojciech Tomasz; Lykkegaard, Jan; Bak, Claus Leth

    2007-01-01

    model is used as a basis for its implementation. First, the linear network part is replaced with an ideal voltage source and a time domain (EMT) simulation is performed. During the initial oscillations, harmonic content of the converter currents is calculated at every period by a fast Fourier transform...... and the periodic steady state is identified. Obtained harmonic currents are assigned to current sources and used in the frequency domain calculation in the linear network. The obtained three-phase bus voltage is then inverse Fourier transformed and assigned to the voltage source and the time domain simulation...... is performed again. This process is repeated until the change in the magnitudes and phase angles of the fundamental and low order characteristic harmonics of the bus voltage is smaller then predefined precision indexes. The method is verified against precise time domain simulation. The convergence properties...

  17. Valorization of ECR sources

    CERN Document Server

    2003-01-01

    One way to limit the size of particle accelerators is to use intense multicharged ion beams. Thus, compact, low cost and reliable sources have been developed. These sources are based on the electron cyclotron resonance (ECR) principle and need no cathode nor filament. A prototype named Nanogan has been developed for the Spiral project of the Ganil accelerator (Caen, France). Then, this technology has been transferred toward other research domains and industrial applications, like the ion implantation in micro-electronics components. (J.S.)

  18. Time Domain Induced Polarization

    DEFF Research Database (Denmark)

    Fiandaca, Gianluca; Auken, Esben; Christiansen, Anders Vest

    2012-01-01

    Time-domain-induced polarization has significantly broadened its field of reference during the last decade, from mineral exploration to environmental geophysics, e.g., for clay and peat identification and landfill characterization. Though, insufficient modeling tools have hitherto limited the use...... of time-domaininduced polarization for wider purposes. For these reasons, a new forward code and inversion algorithm have been developed using the full-time decay of the induced polarization response, together with an accurate description of the transmitter waveform and of the receiver transfer function......%. Furthermore, the presence of low-pass filters in time-domain-induced polarization instruments affects the early times of the acquired decays (typically up to 100 ms) and has to be modeled in the forward response to avoid significant loss of resolution. The developed forward code has been implemented in a 1D...

  19. Comments on FAO's Achievements toward a Public Domain in Plant ...

    African Journals Online (AJOL)

    Robel_E

    constraints [such as property rights] required for markets, and where they. 2 M. Strathern (2006) ... proprietary right by private entities that deny farmers their access to plant ... operation on Environment and Development. London: ..... ineffective.

  20. An Exploration of Policy Making in Public and Organisational Domains

    Institute of Scientific and Technical Information of China (English)

    谢苑苑

    2014-01-01

    This article critically analyses the interplay between policy at institutional level and policy at national level. It also examines the policy-making process by using examples from literature and identifies consultation as a more organic way of policy-making.

  1. Error analysis of a public domain pronunciation dictionary

    CSIR Research Space (South Africa)

    Martirosian, O

    2007-11-01

    Full Text Available The authors explore pattern recognition techniques for verifying the correctness of a pronunciation lexicon, focusing on techniques that require limited human interaction. They evaluate the British English Example Pronunciation (BEEP) dictionary [1...

  2. A Survey of Public Domain Software for Microcomputers.

    Science.gov (United States)

    1985-08-01

    LANGUAGES AND COMPILERS’ 2.1 FORTH. ...................... 2-2 2.2 LADYBUG . ..................... 2-3 2.3 SMALL C.......................2-3 *CHAPTER 3...supEjL GRAPH 3. .................. 3-4 CHAPTER 4 GRAPHICS SOFTWARE 4.1 LADYBUG . ..................... 4-2 4.2 PCPG .. ...................... 4-3 4.3...LANGUAGES AND COMPILERS Page 2-3 LADYBUG 23 September 1985 2.2 LADYBUG NAME: LADYBUG LADYBUG is a

  3. Remotely Piloted Aircraft and War in the Public Relations Domain

    Science.gov (United States)

    2014-10-01

    underhanded or de- ceitful. This article concerns itself with the genus of information, within which propaganda is a species, and therefore addresses all in...nature a PR endeavor. US Army Field Manual 7-98, Op- erations in a Low Intensity Conflict, cautions that a terrorist organiza- tion’s acts of violence ...Strikes Degrade Al Qaeda? Evidence from Propaganda Output,” Terrorism and Political Violence 25, no. 2 (10 January 2013): 314, http

  4. BPS domain walls from backreacted orientifolds

    CERN Document Server

    Blåbäck, Johan; Van Riet, Thomas; Vercnocke, Bert

    2013-01-01

    Compactifications with D-brane and orientifold sources lead to standard gauged supergravity theories if the sources are smeared over the internal directions. It is therefore of interest to find how the solutions described by the gauged supergravity are altered by properly localising the sources. In this paper we analyse this for BPS domain wall solutions in the seven-dimensional gauged supergravity obtained from an O6 toroidal orientifold compactification in massive IIA supergravity. This is one of the simplest no-scale supergravities that can be constructed and analysed in full detail. We find and discuss the BPS domain walls both when the O6 planes are smeared and localised. When the O6 planes are localised the domain wall solutions live in a warped compactification. In order to get explicit expressions we also consider the non-compact versions of the solutions for which the O6 planes have been traded for D6 branes. Through T-duality we obtain partially localised solutions for compactifications to four dime...

  5. Public Relations in Special Libraries.

    Science.gov (United States)

    Rutkowski, Hollace Ann; And Others

    1991-01-01

    This theme issue includes 11 articles on public relations (PR) in special libraries. Highlights include PR at the Special Libraries Association (SLA); sources for marketing research for libraries; developing a library image; sample PR releases; brand strategies for libraries; case studies; publicizing a consortium; and a bibliography of pertinent…

  6. Corporate Culture and Public Relations

    OpenAIRE

    Korolko, Valentyn; Nekrasova, Oksana

    2009-01-01

    Analyzing American publications dealing with the concept of excellent public relations, the authors trace the development of organizational culture and its connection with societal culture, as well as an alyze theoretical and methodological issues of corporate culture and its impact on public relations in an organization. Special attention is paid to some ways in which professional PR departments can be come the source of progressive counter cultures inside the organization capable of changin...

  7. Open Source Software Acquisition

    DEFF Research Database (Denmark)

    Holck, Jesper; Kühn Pedersen, Mogens; Holm Larsen, Michael

    2005-01-01

    Lately we have seen a growing interest from both public and private organisations to adopt OpenSource Software (OSS), not only for a few, specific applications but also on a more general levelthroughout the organisation. As a consequence, the organisations' decisions on adoption of OSS arebecoming...

  8. Information sources [Chapter 12

    Science.gov (United States)

    Daniel G. Neary; John N. Rinne; Alvin L. Medina

    2012-01-01

    The main information sources for the UVR consist of several web sites with general information and bibliographies. RMRS has publications on its Air, Water, Aquatic Environments (AWAE) Program Flagstaff web site. Another RMRS and University of Arizona website on semi-arid and arid watersheds contains a large, searchable bibliography of supporting information from the...

  9. Comparison of the domain and frequency domain state feedbacks

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, S.Y.

    1986-01-01

    In this paper, we present explicitly the equivalence of the time domain and frequency domain state feedbacks, as well as the dynamic state feedback and a modified frequency domain state feedback, from the closed-loop transfer function point of view. The difference of the two approaches is also shown.

  10. Perceptions of Trust in Public Examinations

    Science.gov (United States)

    Simpson, Lucy; Baird, Jo-Anne

    2013-01-01

    Over recent years, the credibility of public examinations in England has increasingly come to the fore. Government agencies have invested time and money into researching public perceptions of the reliability and validity of examinations. Whilst such research overlaps into the conceptual domain of trust, trust in examinations remains an elusive…

  11. A case for using grid architecture for state public health informatics: the Utah perspective

    Directory of Open Access Journals (Sweden)

    Rolfs Robert

    2009-06-01

    Full Text Available Abstract This paper presents the rationale for designing and implementing the next-generation of public health information systems using grid computing concepts and tools. Our attempt is to evaluate all grid types including data grids for sharing information and computational grids for accessing computational resources on demand. Public health is a broad domain that requires coordinated uses of disparate and heterogeneous information systems. System interoperability in public health is limited. The next-generation public health information systems must overcome barriers to integration and interoperability, leverage advances in information technology, address emerging requirements, and meet the needs of all stakeholders. Grid-based architecture provides one potential technical solution that deserves serious consideration. Within this context, we describe three discrete public health information system problems and the process by which the Utah Department of Health (UDOH and the Department of Biomedical Informatics at the University of Utah in the United States has approached the exploration for eventual deployment of a Utah Public Health Informatics Grid. These three problems are: i integration of internal and external data sources with analytic tools and computational resources; ii provide external stakeholders with access to public health data and services; and, iii access, integrate, and analyze internal data for the timely monitoring of population health status and health services. After one year of experience, we have successfully implemented federated queries across disparate administrative domains, and have identified challenges and potential solutions concerning the selection of candidate analytic grid services, data sharing concerns, security models, and strategies for reducing expertise required at a public health agency to implement a public health grid.

  12. Public knowledge and public trust.

    Science.gov (United States)

    Cunningham-Burley, Sarah

    2006-01-01

    As health care applications derived from human genetics research are likely to move increasingly from 'clinic to community', there is growing interest not just in how patients understand and take up health-related genetic information but also in the views of the wider population, as well as a range of professional groups. In this paper, issues relating public knowledge and public trust are raised and discussed in an attempt to move forward debates about public involvement in genomic research and the role of sociologists within interdisciplinary teams. As the field of public understanding of science has developed, we have seen a shift from a focus on the lack of scientific literacy as problem to a recognition of the range of different knowledges that people have and use as they confront science and technology in their everyday lives. As a mood for dialogue pervades many institutions in their relations with 'publics', attention must now be paid to the way in which knowledge and expertise is expressed, heard and acted upon in dialogic encounters. There is increasing concern about public trust in science and calls to increase public confidence, particularly through more open engagement with a range of publics. However, lack of trust or loss of confidence may be constructed as problems rather than reflecting empirical reality, where more complex relationships and attitudes prevail. Lack of trust is often privatized, deeply rooted in lived experience and routinely managed. Trust relations are generally characterized by ambivalence, uncertainty and risk, and are always provisional. Drawing on selected literature and empirical research to review and illustrate this field, this paper argues that scepticism or ambivalence on the part of publics are not necessarily problems to be overcome in the interest of scientific progress, but rather should be mobilized to enhance open and public debates about the nature and direction of genomics research, medicine, and the related

  13. Domains of Disoriented Chiral Condensate

    CERN Document Server

    Amado, R D; Lu, Yang

    1996-01-01

    The probability distribution of neutral pion fraction from independent domains of disoriented chiral condensate is characterized. The signal for the condensate is clear for a small number of domains but is greatly reduced for more than three.

  14. Summarization by domain ontology navigation

    DEFF Research Database (Denmark)

    Andreasen, Troels; Bulskov, Henrik

    2013-01-01

    of the subject. In between these two extremes, conceptual summaries encompass selected concepts derived using background knowledge. We address in this paper an approach where conceptual summaries are provided through a conceptualization as given by an ontology. The ontology guiding the summarization can...... be a simple taxonomy or a generative domain ontology. A domain ontology can be provided by a preanalysis of a domain corpus and can be used to condense improved summaries that better reflects the conceptualization of a given domain....

  15. Genome cartography through domain annotation.

    Science.gov (United States)

    Ponting, C P; Dickens, N J

    2001-01-01

    The evolutionary history of eukaryotic proteins involves rapid sequence divergence, addition and deletion of domains, and fusion and fission of genes. Although the protein repertoires of distantly related species differ greatly, their domain repertoires do not. To account for the great diversity of domain contexts and an unexpected paucity of ortholog conservation, we must categorize the coding regions of completely sequenced genomes into domain families, as well as protein families.

  16. Ligand binding by PDZ domains

    OpenAIRE

    Celestine N. Chi; Bach, Anders; Stromgaard, Kristian; Gianni, Stefano; Jemth, Per

    2012-01-01

    The postsynaptic density protein-95/disks large/zonula occludens-1 (PDZ) protein domain family is one of the most common proteinprotein interaction modules in mammalian cells, with paralogs present in several hundred human proteins. PDZ domains are found in most cell types, but neuronal proteins, for example, are particularly rich in these domains. The general function of PDZ domains is to bring proteins together within the appropriate cellular compartment, thereby facilitating scaffolding, s...

  17. A role for chromatin topology in imprinted domain regulation.

    Science.gov (United States)

    MacDonald, William A; Sachani, Saqib S; White, Carlee R; Mann, Mellissa R W

    2016-02-01

    Recently, many advancements in genome-wide chromatin topology and nuclear architecture have unveiled the complex and hidden world of the nucleus, where chromatin is organized into discrete neighbourhoods with coordinated gene expression. This includes the active and inactive X chromosomes. Using X chromosome inactivation as a working model, we utilized publicly available datasets together with a literature review to gain insight into topologically associated domains, lamin-associated domains, nucleolar-associating domains, scaffold/matrix attachment regions, and nucleoporin-associated chromatin and their role in regulating monoallelic expression. Furthermore, we comprehensively review for the first time the role of chromatin topology and nuclear architecture in the regulation of genomic imprinting. We propose that chromatin topology and nuclear architecture are important regulatory mechanisms for directing gene expression within imprinted domains. Furthermore, we predict that dynamic changes in chromatin topology and nuclear architecture play roles in tissue-specific imprint domain regulation during early development and differentiation.

  18. Public opinion on public services

    NARCIS (Netherlands)

    Evelien Eggink; Debbie Verbeek-Oudijk; Evert Pommer

    2013-01-01

    Original titel: Burgers over de kwaliteit van publieke diensten Most citizens come into contact with public services, for example as a patient, as a student or pupil, as a passenger on public transport or as a museum visitor. More and more importance is being attached to the quality of those service

  19. Instructions for use of radioactive sources; Notices d'utilisation des sources radioactives

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-01-15

    In the industrial and research domain, article L.1333-4, R.1333-26 and R.1333-27 of the public health code submit to authorization of the minister of health the 'nuclear following activities ': the manufacturing of radionuclides; the manufacturing of products or devices by containing; the import, the export of radionuclides, products or devices that contain some; the distribution of radionuclides, of products or devices that contain some; the use of devices emitting X-rays or radioactive sources and the use of accelerators others than electron microscopes; the irradiation of products whatever nature it is, including food products. The activity bringing to plan the manufacturing or the use of radionuclides (in the form of sealed or not sealed sources) there is, in the terms of the public health code (C.S.P.) and except in the cases of exemption which are mentioned there, the obligation to obtain an authorization to hold and to make or to use these radionuclides. The regulations in radioprotection being in full evolution, one will find in these notices the main evolutions relative to the regime of authorizations. (N.C.)

  20. Chaotic domains: A numerical investigation

    OpenAIRE

    Cross, M. C.; Meiron, D.; Tu, Yuhai

    1994-01-01

    We study the chaotic domain state in rotating convection using a model equation that allows for a continuous range of roll orientations as in the experimental system. Methods are developed for extracting the domain configuration from the resulting patterns that should be applicable to a wide range of domain states. Comparison with the truncated three mode amplitude equation description is made.

  1. Gershgorin domains for partitioned matrices

    NARCIS (Netherlands)

    Sluis, A. van der

    1979-01-01

    Inclusion domains for the eigenvalues of a partitioned matrix are specified in terms of perturbations of its diagonal blocks. The size of such perturbations is measured using the Kantorovitch-Robert-Deutsch vectorial norms. The inclusion domains obtained thereby are compared with inclusion domains o

  2. Classification of Noncommutative Domain Algebras

    CERN Document Server

    Arias, Alvaro

    2012-01-01

    Noncommutative domain algebras are noncommutative analogues of the algebras of holomorphic functions on domains of $\\C^n$ defined by holomorphic polynomials, and they generalize the noncommutative Hardy algebras. We present here a complete classification of these algebras based upon techniques inspired by multivariate complex analysis, and more specifically the classification of domains in hermitian spaces up to biholomorphic equivalence.

  3. INEEL Source Water Assessment

    Energy Technology Data Exchange (ETDEWEB)

    Sehlke, Gerald

    2003-03-01

    The Idaho National Engineering and Environmental Laboratory (INEEL) covers approximately 890 mi2 and includes 12 public water systems that must be evaluated for Source water protection purposes under the Safe Drinking Water Act. Because of its size and location, six watersheds and five aquifers could potentially affect the INEEL’s drinking water sources. Based on a preliminary evaluation of the available information, it was determined that the Big Lost River, Birch Creek, and Little Lost River Watersheds and the eastern Snake River Plain Aquifer needed to be assessed. These watersheds were delineated using the United States Geologic Survey’s Hydrological Unit scheme. Well capture zones were originally estimated using the RESSQC module of the Environmental Protection Agency’s Well Head Protection Area model, and the initial modeling assumptions and results were checked by running several scenarios using Modflow modeling. After a technical review, the resulting capture zones were expanded to account for the uncertainties associated with changing groundwater flow directions, a thick vadose zone, and other data uncertainties. Finally, all well capture zones at a given facility were merged to a single wellhead protection area at each facility. A contaminant source inventory was conducted, and the results were integrated with the well capture zones, watershed and aquifer information, and facility information using geographic information system technology to complete the INEEL’s Source Water Assessment. Of the INEEL’s 12 public water systems, three systems rated as low susceptibility (EBR-I, Main Gate, and Gun Range), and the remainder rated as moderate susceptibility. No INEEL public water system rated as high susceptibility. We are using this information to develop a source water management plan from which we will subsequently implement an INEEL-wide source water management program. The results are a very robust set of wellhead protection areas that will

  4. Changing domains in human capital measurement

    Directory of Open Access Journals (Sweden)

    Pharny D. Chrysler-Fox

    2014-02-01

    Full Text Available Orientation: The management context is dynamic; this is especially evident in human capital as the primary source of value creation as opposed to physical and natural resources. In response, measurement methodologies have moved from a transactional approach (strategy implementation to a transformational approach (human capital contribution paradigm, as well as diverging into different purposes. To date, there has been little overlap on recent domains to consider in managing and measuring the contribution of the human resource function and employees, and how to unlock and add value.Research purpose: The aim of the study was to explore and describe changing domains within human capital management to be managed and measured.Motivation for the study: The motivation was to advance the understanding of changing measurement domains to aid practitioners to manage and measure the contribution of the human resource function and employees, in order to unlock and add value and ultimately contribute to the success of an organisation.Research design, approach and method: Unstructured, in-depth interview data of purposively selected cases from a selected panel of human resource practitioners specialising in human capital measurement was thematically analysed in this exploratory-descriptive investigation.Main findings: Findings suggested that seven domains should be managed and measured. These domains highlight new areas of impact and levels of management. In addition, crossdomain relationships in measurement allow for an understanding of the impact and potential value on which to capitalise.Practical/managerial implications: New domains to manage and measure focus the attention of practitioners beyond the transactional performance management paradigm to a transformational approach to influence the business strategy. Higher education institutions need to develop students’ cognitive skills to facilitate systems thinking.Contribution: This study suggests a new

  5. The Legal Regime of the Right to Administrate Public Property

    Directory of Open Access Journals (Sweden)

    Vasilica Negruţ

    2014-05-01

    Full Text Available The traditional institutions for administrative law, public property and the public domain have been the subject of numerous specialized papers from the interwar period. After 1990, the two institutions were discussed in light of the new legislative rules. Within this article we propose to analyze, based on the distinction between the notions of public property and public domain, the legal regime of the right to administrate assets of public property. Is this a real right appropriate for public property or just a simple competence of administration and management of public domain assets? Analyzing and comparing the opinions, the arguments expressed by specialists and the current legislation in this area, we conclude that the administrative right is a real right suitable for public property.

  6. Space Domain Awareness for Manned GEO Servicing

    Science.gov (United States)

    Blake, T.

    2010-09-01

    The Defense Advanced Research Projects Agency (DARPA) is embarking on a joint program to service spacecraft in Geosynchronous (GEO) Orbit. This ambitious program, known as R5 (Rendezvous, Refuel, Refurbish, Repair, and Reposition), will develop the technologies required to extend the life of billions of dollars of invested in building, launching and operating GEO spacecraft. Inherent in the R5 program, is the need for high quality awareness of the space domain at GEO. Servicing non-operational spacecraft in GEO will require enhanced debris detect/track and space weather monitoring for crew safety, as well as high resolution characterization of the spacecraft to understand the status of the spacecraft to manifest the repair mission. This paper will briefly describe the GEO space domain sensor and data processing requirements to support the R5 program and outline DARPA’s program plans to develop these capabilities. Distribution Statement A (Approved for Public Release, Distribution Unlimited). DISTAR case 15410.

  7. Public Sociology

    DEFF Research Database (Denmark)

    What is the role of sociology in society? How can - and should - sociology contribute with insights relevant and useful to the outside world? Is sociology attuned to accommodate the demands of the wider public and of surrounding society? Who benefits from the knowledge produced and provided...... by sociology? What are the social implications and cultural effects of the knowledge sociology provides and creates? All of these questions, and many others, concern and centre on sociology's relationship to the surrounding society, in short to the ‘public'. All of these questions - and many others...... irrelevance and introversion and the Charybdis of public relevancy and extroversion. But what does it mean to be a ‘public sociologist' in contemporary society and are there really any other ways of doing sociology? What are the requirements of sociologists in a social world increasingly informed and shaped...

  8. Miscellaneous Publications

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Late 19th century Weather Bureau publications and Congressional reports pertaining to weather. Set of Weather Bureau Snowfall Bulletins for Rocky Mountain states...

  9. Public Airports

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a vector point digital data structure that contains the locations of General Public Use Airports in the State of New Mexico. It only contains those...

  10. Expansion of protein domain repeats.

    Directory of Open Access Journals (Sweden)

    Asa K Björklund

    2006-08-01

    Full Text Available Many proteins, especially in eukaryotes, contain tandem repeats of several domains from the same family. These repeats have a variety of binding properties and are involved in protein-protein interactions as well as binding to other ligands such as DNA and RNA. The rapid expansion of protein domain repeats is assumed to have evolved through internal tandem duplications. However, the exact mechanisms behind these tandem duplications are not well-understood. Here, we have studied the evolution, function, protein structure, gene structure, and phylogenetic distribution of domain repeats. For this purpose we have assigned Pfam-A domain families to 24 proteomes with more sensitive domain assignments in the repeat regions. These assignments confirmed previous findings that eukaryotes, and in particular vertebrates, contain a much higher fraction of proteins with repeats compared with prokaryotes. The internal sequence similarity in each protein revealed that the domain repeats are often expanded through duplications of several domains at a time, while the duplication of one domain is less common. Many of the repeats appear to have been duplicated in the middle of the repeat region. This is in strong contrast to the evolution of other proteins that mainly works through additions of single domains at either terminus. Further, we found that some domain families show distinct duplication patterns, e.g., nebulin domains have mainly been expanded with a unit of seven domains at a time, while duplications of other domain families involve varying numbers of domains. Finally, no common mechanism for the expansion of all repeats could be detected. We found that the duplication patterns show no dependence on the size of the domains. Further, repeat expansion in some families can possibly be explained by shuffling of exons. However, exon shuffling could not have created all repeats.

  11. Metaphors, domains and embodiment

    Directory of Open Access Journals (Sweden)

    M.E. Botha

    2005-07-01

    Full Text Available Investigations of metaphorical meaning constitution and meaning (in- variance have revealed the significance of semantic and semiotic domains and the contexts within which they function as basis for the grounding of metaphorical meaning. In this article some of the current views concerning the grounding of metaphorical meaning in experience and embodiment are explored. My provisional agreement with Lakoff, Johnson and others about the “conceptual” nature of metaphor rests on an important caveat, viz. that this bodily based conceptual structure which lies at the basis of linguistic articulations of metaphor, is grounded in a deeper ontic structure of the world and of human experience. It is the “metaphorical” (actually “analogical” ontological structure of this grounding that is of interest for the line of argumentation followed in this article. Because Johnson, Lakoff and other’s proposal to ground metaphorical meaning in embodiment and neural processes is open to being construed as subjectivist and materialist, I shall attempt to articulate the contours of an alternative theory of conceptual metaphor, meaning and embodiment which counteracts these possibilities. This theory grounds metaphorical meaning and meaning change in an ontological and anthropological framework which recognises the presence and conditioning functioning of radially ordered structures for reality. These categorisations in which humankind, human knowledge and reality participate, condition and constrain (ground analogical and metaphorical meaning transfer, cross-domain mappings, and blends in cognition and in language, provide the basis for the analogical concepts found in these disciplines.

  12. Public meetings

    CERN Multimedia

    Staff Association

    2017-01-01

    Do you have questions about the elections to the Staff Council, 2017 MERIT exercise, EVE and School, LD to IC exercise, CHIS, the Pension Fund… Come get informed and ask your questions at our public meetings. These public meetings are also an opportunity to get the more information on current issues. Benefit from this occasion to get the latest news and to discuss with the representatives of the statutory body that is the Staff Association!

  13. The Impacts of Free Public Internet Access on Public Library Patrons and Communities

    Science.gov (United States)

    Bertot, John Carlo; McClure, Charles R.; Jaeger, Paul T.

    2008-01-01

    Public libraries have evolved into a primary source of Internet access in many communities, generating wide-ranging impacts in the communities that public libraries serve. Based on the findings of the 2007 Public Libraries and the Internet study, this article examines the ways in which the Internet access delivered by public libraries affects…

  14. The Impacts of Free Public Internet Access on Public Library Patrons and Communities

    Science.gov (United States)

    Bertot, John Carlo; McClure, Charles R.; Jaeger, Paul T.

    2008-01-01

    Public libraries have evolved into a primary source of Internet access in many communities, generating wide-ranging impacts in the communities that public libraries serve. Based on the findings of the 2007 Public Libraries and the Internet study, this article examines the ways in which the Internet access delivered by public libraries affects…

  15. Ligand binding by PDZ domains

    DEFF Research Database (Denmark)

    Chi, Celestine N.; Bach, Anders; Strømgaard, Kristian

    2012-01-01

    The postsynaptic density protein-95/disks large/zonula occludens-1 (PDZ) protein domain family is one of the most common protein-protein interaction modules in mammalian cells, with paralogs present in several hundred human proteins. PDZ domains are found in most cell types, but neuronal proteins......, for example, are particularly rich in these domains. The general function of PDZ domains is to bring proteins together within the appropriate cellular compartment, thereby facilitating scaffolding, signaling, and trafficking events. The many functions of PDZ domains under normal physiological as well...

  16. Connecting public health and clinical information systems by using a standardized methodology.

    Science.gov (United States)

    Lopez, Diego M; Blobel, Bernd G M E

    2007-01-01

    To meet the challenge for efficient, high quality and sustainable care, health systems in developed and increasingly in developing countries require extended communication and cooperation between all principals involved in citizen's care. The challenge also concerns supporting information systems, which demand interoperation with public health, bioinformatics, genomics, administrative, governmental, and other sources of data. The paper describes an architecture development methodology for modeling the integration between clinical and public health information systems that harmonizes existent standardized modeling approaches and integrates HL7 domain knowledge. An integration-architecture for information sharing between public health surveillance and clinical information systems is derived demonstrating the feasibility of the proposed methodology. Predominantly, a harmonized process for analysis, design, implementation and maintenance of semantically interoperable information systems based on formal grammars is discussed in some detail.

  17. The framing of scientific domains

    DEFF Research Database (Denmark)

    Dam Christensen, Hans

    2014-01-01

    Purpose: By using the UNISIST models this article argues for the necessity of domain analysis in order to qualify scientific information seeking. The models better understanding of communication processes in a scientific domain and embraces the point that domains are always both unstable over time...... and changeable according to the specific perspective. This understanding is even more important today as numerous digitally generated information tools as well as collaborative and interdisciplinary research are blurring the domain borders. Nevertheless, researchers navigate “intuitively” in “their” specific...... as according to the agents that are charting them. As such, power in a Foucauldian sense is unavoidable in outlining a domain. Originality/value 1. The UNISIST models are applied to the domain of art history; and 2. the article discusses the instability of a scientific domain as well as, at the same time...

  18. The framing of scientific domains

    DEFF Research Database (Denmark)

    Dam Christensen, Hans

    2014-01-01

    Purpose: By using the UNISIST models this article argues for the necessity of domain analysis in order to qualify scientific information seeking. The models better understanding of communication processes in a scientific domain and embraces the point that domains are always both unstable over time...... as according to the agents that are charting them. As such, power in a Foucauldian sense is unavoidable in outlining a domain. Originality/value 1. The UNISIST models are applied to the domain of art history; and 2. the article discusses the instability of a scientific domain as well as, at the same time......, the significance of framing a domain; an implication which is often neglected in scientific information seeking....

  19. How to tap Mexican Business Information Sources

    OpenAIRE

    1993-01-01

    Publication of business information sources in Mexico is growing fast. This growth is probably faster than the one of traditional academic-oriented sources. However, despite this growth, Mexican companies and international corporations demand greater and better information sources to monitor their environments due to the free trade agreement with The US and Canada. An evaluation of the most important sources and organizations devoted to the publication of business information are included...

  20. DSRM: An Ontology Driven Domain Scientific Data Retrieval Model

    OpenAIRE

    2013-01-01

    With the development of information technology, a large number of domain scientific data have been accumulated with the characteristics of distribution and heterogeneity. It has important significance to acquire exact scientific data from multiple data sources for cooperative research. The existing data integration and information retrieval techniques cannot solve the problems of data semantic heterogeneity and retrieval inaccuracy very well. In this paper, an ontology driven domain scientifi...

  1. The Methodology for Ontology Development in Lesson Plan Domain

    OpenAIRE

    Aslina Saad; Shahnita Shaharin

    2016-01-01

    Ontology has been recognized as a knowledge representation mechanism that supports a semantic web application. The semantic web application that supports lesson plan construction is crucial for teachers to deal with the massive information sources from various domains on the web. Thus, knowledge in lesson plan domain needs to be represented accordingly so that the search on the web will retrieve relevant materials only. Essentially, such retrieval needs an appropriate representation of the do...

  2. Framing Effects: Dynamics and Task Domains

    Science.gov (United States)

    Wang

    1996-11-01

    The author examines the mechanisms and dynamics of framing effects in risky choices across three distinct task domains (i.e., life-death, public property, and personal money). The choice outcomes of the problems presented in each of the three task domains had a binary structure of a sure thing vs a gamble of equal expected value; the outcomes differed in their framing conditions and the expected values, raging from 6000, 600, 60, to 6, numerically. It was hypothesized that subjects would become more risk seeking, if the sure outcome was below their aspiration level (the minimum requirement). As predicted, more subjects preferred the gamble when facing the life-death choice problems than facing the counterpart problems presented in the other two task domains. Subjects' risk preference varied categorically along the group size dimension in the life-death domain but changed more linearly over the expected value dimension in the monetary domain. Framing effects were observed in 7 of 13 pairs of problems, showing a positive frame-risk aversion and negative frame-risk seeking relationship. In addition, two types of framing effects were theoretically defined and empirically identified. A bidirectional framing effect involves a reversal in risk preference, and occurs when a decision maker's risk preference is ambiguous or weak. Four bidirectional effects were observed; in each case a majority of subjects preferred the sure outcome under a positive frame but the gamble under a negative frame. In contrast, a unidirectional framing effect refers to a preference shift due to the framing of choice outcomes: A majority of subjects preferred one choice outcome (either the sure thing or the gamble) under both framing conditions, with positive frame augmented the preference for the sure thing and negative frame augmented the preference for the gamble. These findings revealed some dynamic regularities of framing effects and posed implications for developing predictive and testable

  3. The Chandra Source Catalog

    CERN Document Server

    Evans, Ian N; Glotfelty, Kenny J; Anderson, Craig S; Bonaventura, Nina R; Chen, Judy C; Davis, John E; Doe, Stephen M; Evans, Janet D; Fabbiano, Giuseppina; Galle, Elizabeth C; Gibbs, Danny G; Grier, John D; Hain, Roger M; Hall, Diane M; Harbo, Peter N; Xiangqun,; He,; Houck, John C; Karovska, Margarita; Kashyap, Vinay L; Lauer, Jennifer; McCollough, Michael L; McDowell, Jonathan C; Miller, Joseph B; Mitschang, Arik W; Morgan, Douglas L; Mossman, Amy E; Nichols, Joy S; Nowak, Michael A; Plummer, David A; Refsdal, Brian L; Rots, Arnold H; Siemiginowska, Aneta; Sundheim, Beth A; Tibbetts, Michael S; Van Stone, David W; Winkelman, Sherry L; Zografou, Panagoula

    2010-01-01

    The Chandra Source Catalog (CSC) is a general purpose virtual X-ray astrophysics facility that provides access to a carefully selected set of generally useful quantities for individual X-ray sources, and is designed to satisfy the needs of a broad-based group of scientists, including those who may be less familiar with astronomical data analysis in the X-ray regime. The first release of the CSC includes information about 94,676 distinct X-ray sources detected in a subset of public ACIS imaging observations from roughly the first eight years of the Chandra mission. This release of the catalog includes point and compact sources with observed spatial extents <~ 30''. The catalog (1) provides access to the best estimates of the X-ray source properties for detected sources, with good scientific fidelity, and directly supports scientific analysis using the individual source data; (2) facilitates analysis of a wide range of statistical properties for classes of X-ray sources; and (3) provides efficient access to ...

  4. Unveiling the Domain Conflict – FOSS vs. IPR

    Directory of Open Access Journals (Sweden)

    Dr. Anurika Vaish

    2007-04-01

    Full Text Available In the present times the most talked about issues in the knowledge driven economic system are Free and Open Source Software (FOSS and Intellectual Property Right (IPR, both of which exist at poles apart. The question that prevails that is about the relevance of the either and that of the dominance of each one. The paper tries to probe into issues of general and specific relevance of FOSS and IPR as suppliers of certain set of utility and benefit to the user. It will also check the validity of the claim of FOSS and it licensing procedure comparing it with the user ship obligations of IPR protected products and services. The premise to the paper is that both FOSS and IPR have to exist and compliment each other ensuring a strong presence of resources in the public and private domain. The paper would certainly work on the area to validate the existence of conflict between the FOSS and IPR, or it is a mere false caution raised by groups pursuing either cause. Finally the paper would propose to demarcate the areas of dominance of FOSS and IPR and prove the utility at the socio-economic front.

  5. Source Water Protection Contaminant Sources

    Data.gov (United States)

    Iowa State University GIS Support and Research Facility — Simplified aggregation of potential contaminant sources used for Source Water Assessment and Protection. The data is derived from IDNR, IDALS, and US EPA program...

  6. Wavelength-domain RF photonic signal processing

    Science.gov (United States)

    Gao, Lu

    This thesis presents a novel approach to RF-photonic signal processing applications based on wavelength-domain optical signal processing techniques using broadband light sources as the information carriers, such as femtosecond lasers and white light sources. The wavelength dimension of the broadband light sources adds an additional degree of freedom to conventional optical signal processing systems. Two novel wavelength-domain optical signal processing systems are presented and demonstrated in this thesis. The first wavelength-domain RF photonic signal processing system is a wavelength-compensated squint-free photonic multiple beam-forming system for wideband RF phased-array antennas. Such a photonic beam-forming system employs a new modulation scheme developed in this thesis, which uses traveling-wave tunable filters to modulate wideband RF signals onto broadband optical light sources in a frequency-mapped manner. The wavelength dimension of the broadband light sources provides an additional dimension in the wavelength-compensated Fourier beam-forming system for mapping the received RF frequencies to the linearly proportional optical frequencies, enabling true-time-delay beam forming, as well as other novel RF-photonic signal processing functions such as tunable filtering and frequency down conversion. A new slow-light mechanism, the SLUGGISH light, has also been discovered with an effective slow-light velocity of 86 m/s and a record time-bandwidth product of 20. Experimental demonstration of true-time-delay beam forming based on the SLUGGISH light effect has also been presented in this thesis. In the second wavelength-domain RF photonic signal processing system, the wavelength dimension increases the information carrying capacity by spectrally multiplexing multiple wavelength channels in a wavelength-division-multiplexing fiber-optic communication system. A novel ultrafast all-optical 3R (Re-amplification, Retiming, Re-shaping) wavelength converter based on

  7. Protein domain organisation: adding order

    Directory of Open Access Journals (Sweden)

    Kummerfeld Sarah K

    2009-01-01

    Full Text Available Abstract Background Domains are the building blocks of proteins. During evolution, they have been duplicated, fused and recombined, to produce proteins with novel structures and functions. Structural and genome-scale studies have shown that pairs or groups of domains observed together in a protein are almost always found in only one N to C terminal order and are the result of a single recombination event that has been propagated by duplication of the multi-domain unit. Previous studies of domain organisation have used graph theory to represent the co-occurrence of domains within proteins. We build on this approach by adding directionality to the graphs and connecting nodes based on their relative order in the protein. Most of the time, the linear order of domains is conserved. However, using the directed graph representation we have identified non-linear features of domain organization that are over-represented in genomes. Recognising these patterns and unravelling how they have arisen may allow us to understand the functional relationships between domains and understand how the protein repertoire has evolved. Results We identify groups of domains that are not linearly conserved, but instead have been shuffled during evolution so that they occur in multiple different orders. We consider 192 genomes across all three kingdoms of life and use domain and protein annotation to understand their functional significance. To identify these features and assess their statistical significance, we represent the linear order of domains in proteins as a directed graph and apply graph theoretical methods. We describe two higher-order patterns of domain organisation: clusters and bi-directionally associated domain pairs and explore their functional importance and phylogenetic conservation. Conclusion Taking into account the order of domains, we have derived a novel picture of global protein organization. We found that all genomes have a higher than expected

  8. High-speed optical frequency-domain imaging

    OpenAIRE

    Yun, S. H.; Tearney, G. J.; Boer; Iftimia, N. V.; Bouma, B. E.

    2003-01-01

    We demonstrate high-speed, high-sensitivity, high-resolution optical imaging based on optical frequency-domain interferometry using a rapidly-tuned wavelength-swept laser. We derive and show experimentally that frequency-domain ranging provides a superior signal-to-noise ratio compared with conventional time-domain ranging as used in optical coherence tomography. A high sensitivity of −110 dB was obtained with a 6 mW source at an axial resolution of 13.5 µm and an A-line rate of 15.7 kHz, rep...

  9. Direct formulation of the supersonic acoustic intensity in space domain

    DEFF Research Database (Denmark)

    Fernandez Grande, Efren; Jacobsen, Finn; Leclre, Quentin

    2012-01-01

    This paper proposes and examines a direct formulation in space domain of the so-called supersonic acoustic intensity. This quantity differs from the usual (active) intensity by excluding the circulating energy in the near-field of the source, providing a map of the acoustic energy that is radiated...... by means of a two-dimensional convolution between the acoustic field and a spatial filter mask that corresponds to the space domain representation of the radiation circle. Therefore, the acoustic field that propagates effectively to the far field is calculated via direct filtering in space domain...

  10. Going public

    DEFF Research Database (Denmark)

    Meyer, Gitte; Sandøe, Peter

    2012-01-01

    The paper addresses issues of scientific conduct regarding relations between science and the media, relations between scientists and journalists, and attitudes towards the public at large. In the large and increasing body of literature on scientific conduct and misconduct, these issues seem...... deal with ethical public relations issues, guided by a norm or maxim of openness. Drawing on and rethinking the CUDOS codification of the scientific ethos, as it was worked out by Robert K. Merton in 1942, we propose that this, which is echoed in current codifications of norms for good scientific...... conduct, contains a tacit maxim of openness which may naturally be extended to cover the public relations of science. Discussing openness as access, accountability, transparency and receptiveness, the argumentation concentrates on the possible prevention of misconduct with respect to, on the one hand...

  11. Going public

    DEFF Research Database (Denmark)

    Meyer, Gitte; Sandøe, Peter

    2012-01-01

    The paper addresses issues of scientific conduct regarding relations between science and the media, relations between scientists and journalists, and attitudes towards the public at large. In the large and increasing body of literature on scientific conduct and misconduct, these issues seem...... deal with ethical public relations issues, guided by a norm or maxim of openness. Drawing on and rethinking the CUDOS codification of the scientific ethos, as it was worked out by Robert K. Merton in 1942, we propose that this, which is echoed in current codifications of norms for good scientific...... conduct, contains a tacit maxim of openness which may naturally be extended to cover the public relations of science. Discussing openness as access, accountability, transparency and receptiveness, the argumentation concentrates on the possible prevention of misconduct with respect to, on the one hand...

  12. Public Sphere

    DEFF Research Database (Denmark)

    Trenz, Hans-Jörg

    2015-01-01

    of the collective will of the people in the act of democratic self-government. The concept of the public sphere is used across the fields of media and communication research, cultural studies and the humanities, the history of ideas, legal and constitutional studies as well as democracy studies. Historically......In modern societies, the public sphere represents the intermediary realm that supports the communication of opinions, the discovery of problems that need to be dealt with collectively, the channeling of these problems through the filter of the media and political institutions, and the realization......, public spheres have undergone structural transformations that were closely connected to the emergence of different mass media. More recently, they are subject to trends of transnationalization and digitalization in politics and society....

  13. Public Sphere

    DEFF Research Database (Denmark)

    Trenz, Hans-Jörg

    2015-01-01

    In modern societies, the public sphere represents the intermediary realm that supports the communication of opinions, the discovery of problems that need to be dealt with collectively, the channeling of these problems through the filter of the media and political institutions, and the realization......, public spheres have undergone structural transformations that were closely connected to the emergence of different mass media. More recently, they are subject to trends of transnationalization and digitalization in politics and society....... of the collective will of the people in the act of democratic self-government. The concept of the public sphere is used across the fields of media and communication research, cultural studies and the humanities, the history of ideas, legal and constitutional studies as well as democracy studies. Historically...

  14. Public Interfa(e)ces

    DEFF Research Database (Denmark)

    Cox, Geoff

    2011-01-01

    In the work of Hannah Arendt, the political realm arises out of acting together, in the sharing of speech and action. There has been much recent interest in revisiting Arendt’s ideas, in relation to a reconceptualisation of publicness. In Virno’s work, for instance, this is emphasized because...... as in speech or writing but also something that performs actions? For Kelty, again referring to Arendt, the free software movement is an example of what he calls a “recursive pubic”, to draw attention to emergent and self-organizing public actions. Moreover, publicness is constituted not simply by speaking......, writing, and protesting, but also through modification of the domain or platform through which these practices are enacted. And ordure? The quirky intervention of Dominique Laporte, in History of Shit (first published in French in 1978) verifies that modern power is founded on the aesthetics of the public...

  15. Open source drug discovery in practice: a case study.

    Directory of Open Access Journals (Sweden)

    Christine Årdal

    Full Text Available BACKGROUND: Open source drug discovery offers potential for developing new and inexpensive drugs to combat diseases that disproportionally affect the poor. The concept borrows two principle aspects from open source computing (i.e., collaboration and open access and applies them to pharmaceutical innovation. By opening a project to external contributors, its research capacity may increase significantly. To date there are only a handful of open source R&D projects focusing on neglected diseases. We wanted to learn from these first movers, their successes and failures, in order to generate a better understanding of how a much-discussed theoretical concept works in practice and may be implemented. METHODOLOGY/PRINCIPAL FINDINGS: A descriptive case study was performed, evaluating two specific R&D projects focused on neglected diseases. CSIR Team India Consortium's Open Source Drug Discovery project (CSIR OSDD and The Synaptic Leap's Schistosomiasis project (TSLS. Data were gathered from four sources: interviews of participating members (n = 14, a survey of potential members (n = 61, an analysis of the websites and a literature review. Both cases have made significant achievements; however, they have done so in very different ways. CSIR OSDD encourages international collaboration, but its process facilitates contributions from mostly Indian researchers and students. Its processes are formal with each task being reviewed by a mentor (almost always offline before a result is made public. TSLS, on the other hand, has attracted contributors internationally, albeit significantly fewer than CSIR OSDD. Both have obtained funding used to pay for access to facilities, physical resources and, at times, labor costs. TSLS releases its results into the public domain, whereas CSIR OSDD asserts ownership over its results. CONCLUSIONS/SIGNIFICANCE: Technically TSLS is an open source project, whereas CSIR OSDD is a crowdsourced project. However, both have enabled high

  16. Open source drug discovery in practice: a case study.

    Science.gov (United States)

    Årdal, Christine; Røttingen, John-Arne

    2012-01-01

    Open source drug discovery offers potential for developing new and inexpensive drugs to combat diseases that disproportionally affect the poor. The concept borrows two principle aspects from open source computing (i.e., collaboration and open access) and applies them to pharmaceutical innovation. By opening a project to external contributors, its research capacity may increase significantly. To date there are only a handful of open source R&D projects focusing on neglected diseases. We wanted to learn from these first movers, their successes and failures, in order to generate a better understanding of how a much-discussed theoretical concept works in practice and may be implemented. A descriptive case study was performed, evaluating two specific R&D projects focused on neglected diseases. CSIR Team India Consortium's Open Source Drug Discovery project (CSIR OSDD) and The Synaptic Leap's Schistosomiasis project (TSLS). Data were gathered from four sources: interviews of participating members (n = 14), a survey of potential members (n = 61), an analysis of the websites and a literature review. Both cases have made significant achievements; however, they have done so in very different ways. CSIR OSDD encourages international collaboration, but its process facilitates contributions from mostly Indian researchers and students. Its processes are formal with each task being reviewed by a mentor (almost always offline) before a result is made public. TSLS, on the other hand, has attracted contributors internationally, albeit significantly fewer than CSIR OSDD. Both have obtained funding used to pay for access to facilities, physical resources and, at times, labor costs. TSLS releases its results into the public domain, whereas CSIR OSDD asserts ownership over its results. Technically TSLS is an open source project, whereas CSIR OSDD is a crowdsourced project. However, both have enabled high quality research at low cost. The critical success factors appear to be clearly

  17. public spaces

    Directory of Open Access Journals (Sweden)

    Elena Grigoryeva

    2013-01-01

    Full Text Available The topic of this issue is PUBLIC SPACES. It is familiar and clear to every citizen. The streets and courtyards as childhood experiences remain with us forever. And these are the places where we come with our parents at weekends, where we meet friends, where we have dates and where we already come for a walk with our children.The history of public spaces is long and captivating. It was the main city squares where the most important events took place in history. The Agoras of Ancient Greece and the Roman Forums, the squares of Vatican, Paris and London, Moscow and Saint Petersburg… Greve, Trafalgar, Senate, Palace, Red, Bolotnaya – behind every name there is life of capitals, countries and nations.Public spaces, their shapes, image and development greatly influence the perception of the city as a whole. Both visitors and inhabitants can see in public spaces not only the visage but the heart, the soul and the mind of the city.Unfortunately, sometimes we have to prove the value of public spaces and defend them from those who consider them nothing but a blank space, nobody’s land destined for barbarous development.What should happen to make citizens perceive public spaces as their own and to make authorities consider development and maintenance of squares and parks their priority task against the  background of increasing competition between cities and the fight for human capital? Lately they more often say about “a high-quality human capital”. And now, when they say “the city should be liveable” they add “for all groups of citizens, including the creative class”.

  18. Domain adaptation for Alzheimer's disease diagnostics.

    Science.gov (United States)

    Wachinger, Christian; Reuter, Martin

    2016-10-01

    With the increasing prevalence of Alzheimer's disease, research focuses on the early computer-aided diagnosis of dementia with the goal to understand the disease process, determine risk and preserving factors, and explore preventive therapies. By now, large amounts of data from multi-site studies have been made available for developing, training, and evaluating automated classifiers. Yet, their translation to the clinic remains challenging, in part due to their limited generalizability across different datasets. In this work, we describe a compact classification approach that mitigates overfitting by regularizing the multinomial regression with the mixed ℓ1/ℓ2 norm. We combine volume, thickness, and anatomical shape features from MRI scans to characterize neuroanatomy for the three-class classification of Alzheimer's disease, mild cognitive impairment and healthy controls. We demonstrate high classification accuracy via independent evaluation within the scope of the CADDementia challenge. We, furthermore, demonstrate that variations between source and target datasets can substantially influence classification accuracy. The main contribution of this work addresses this problem by proposing an approach for supervised domain adaptation based on instance weighting. Integration of this method into our classifier allows us to assess different strategies for domain adaptation. Our results demonstrate (i) that training on only the target training set yields better results than the naïve combination (union) of source and target training sets, and (ii) that domain adaptation with instance weighting yields the best classification results, especially if only a small training component of the target dataset is available. These insights imply that successful deployment of systems for computer-aided diagnostics to the clinic depends not only on accurate classifiers that avoid overfitting, but also on a dedicated domain adaptation strategy.

  19. Open Source Fundamental Industry Classification

    OpenAIRE

    Kakushadze, Zura; Yu, Willie

    2017-01-01

    We provide complete source code for building a fundamental industry classification based on publically available and freely downloadable data. We compare various fundamental industry classifications by running a horserace of short-horizon trading signals (alphas) utilizing open source heterotic risk models (https://ssrn.com/abstract=2600798) built using such industry classifications. Our source code includes various stand-alone and portable modules, e.g., for downloading/parsing web data, etc.

  20. Public health

    NARCIS (Netherlands)

    Berg, van den A.E.

    2007-01-01

    Agnes van den Berg wrote an essay about human health and nature, establishing that subject as an important policy argument in developing (urban) nature in the Netherlands. She studied the public balance of fear and fascination for nature, summarising benefits on human health. In this chapter, she ad

  1. Public Affairs.

    Science.gov (United States)

    Snow, C. P.

    In this book effects of technological developments on world conditions are discussed on the basis of the author's public statements made between 1959-70. A total of seven pieces is presented under the headings: The Two Cultures and the Scientific Revolution, The Two Cultures: A Second Look, The Case of Leavis and the Serious Case, Science and…

  2. Public health

    NARCIS (Netherlands)

    Berg, van den A.E.

    2007-01-01

    Agnes van den Berg wrote an essay about human health and nature, establishing that subject as an important policy argument in developing (urban) nature in the Netherlands. She studied the public balance of fear and fascination for nature, summarising benefits on human health. In this chapter, she

  3. Publication Design.

    Science.gov (United States)

    Nelson, Roy Paul

    This book is designed to solve the problem of coordinating art and typography with content in publications. Through text and illustrations, this book suggests ways to make pages and spreads in magazines, newspapers, and books attractive and readable. As a book of techniques, it is directed at potential and practicing art directors, designers, and…

  4. Publication Design.

    Science.gov (United States)

    Nelson, Roy Paul

    This book is designed to solve the problem of coordinating art and typography with content in publications. Through text and illustrations, this book suggests ways to make pages and spreads in magazines, newspapers, and books attractive and readable. As a book of techniques, it is directed at potential and practicing art directors, designers, and…

  5. Domain imaging in FINEMET ribbons

    Energy Technology Data Exchange (ETDEWEB)

    Silveyra, J.M., E-mail: jsilveyra@fi.uba.a [Laboratorio de Solidos Amorfos, INTECIN, Facultad de Ingenieria, UBA-CONICET, Paseo Colon 850, (C1063ACV) Buenos Aires (Argentina); Vlasak, G.; Svec, P.; Janickovic, D. [Institute of Physics, Slovak Academy of Sciences, Dubravska cesta 9, 845 11 Bratislava (Slovakia); Cremaschi, V.J., E-mail: vcremas@gmail.co [Laboratorio de Solidos Amorfos, INTECIN, Facultad de Ingenieria, UBA-CONICET, Paseo Colon 850, (C1063ACV) Buenos Aires (Argentina); Member of Carrera del Investigador, CONICET (Argentina)

    2010-09-15

    The magnetization behaviour of a ferromagnetic material depends on its domain structure, which in turn is largely determined by magnetic anisotropies. In this work, domain patterns were observed by a quite forgotten but still the simplest and the cheapest technique: the Bitter method. A systematic study of the evolution of the domain structure in FINEMET ribbons after thermal annealing is presented, correlating the results with the crystalline structure, magnetostriction and coercivity measurements.

  6. Dynamical domain wall and localization

    Directory of Open Access Journals (Sweden)

    Yuta Toyozato

    2016-03-01

    Full Text Available Based on the previous works (Toyozato et al., 2013 [24]; Higuchi and Nojiri, 2014 [25], we investigate the localization of the fields on the dynamical domain wall, where the four-dimensional FRW universe is realized on the domain wall in the five-dimensional space–time. Especially we show that the chiral spinor can localize on the domain wall, which has not been succeeded in the past works as the seminal work in George et al. (2009 [23].

  7. New frontiers in time-domain diffuse optics, a review

    Science.gov (United States)

    Pifferi, Antonio; Contini, Davide; Mora, Alberto Dalla; Farina, Andrea; Spinelli, Lorenzo; Torricelli, Alessandro

    2016-09-01

    The recent developments in time-domain diffuse optics that rely on physical concepts (e.g., time-gating and null distance) and advanced photonic components (e.g., vertical cavity source-emitting laser as light sources, single photon avalanche diode, and silicon photomultipliers as detectors, fast-gating circuits, and time-to-digital converters for acquisition) are focused. This study shows how these tools could lead on one hand to compact and wearable time-domain devices for point-of-care diagnostics down to the consumer level and on the other hand to powerful systems with exceptional depth penetration and sensitivity.

  8. A Domain-Specific Programming Language for Secure Multiparty Computation

    DEFF Research Database (Denmark)

    Nielsen, Janus Dam; Schwartzbach, Michael Ignatieff

    2007-01-01

    We present a domain-specific programming language for Secure Multiparty Computation (SMC). Information is a resource of vital importance and considerable economic value to individuals, public administration, and private companies. This means that the confidentiality of information is crucial...... application development. The language is implemented in a prototype compiler that generates Java code exploiting a distributed cryptographic runtime....

  9. Open-source 3D-printable optics equipment.

    Science.gov (United States)

    Zhang, Chenlong; Anzalone, Nicholas C; Faria, Rodrigo P; Pearce, Joshua M

    2013-01-01

    Just as the power of the open-source design paradigm has driven down the cost of software to the point that it is accessible to most people, the rise of open-source hardware is poised to drive down the cost of doing experimental science to expand access to everyone. To assist in this aim, this paper introduces a library of open-source 3-D-printable optics components. This library operates as a flexible, low-cost public-domain tool set for developing both research and teaching optics hardware. First, the use of parametric open-source designs using an open-source computer aided design package is described to customize the optics hardware for any application. Second, details are provided on the use of open-source 3-D printers (additive layer manufacturing) to fabricate the primary mechanical components, which are then combined to construct complex optics-related devices. Third, the use of the open-source electronics prototyping platform are illustrated as control for optical experimental apparatuses. This study demonstrates an open-source optical library, which significantly reduces the costs associated with much optical equipment, while also enabling relatively easily adapted customizable designs. The cost reductions in general are over 97%, with some components representing only 1% of the current commercial investment for optical products of similar function. The results of this study make its clear that this method of scientific hardware development enables a much broader audience to participate in optical experimentation both as research and teaching platforms than previous proprietary methods.

  10. Open-source 3D-printable optics equipment.

    Directory of Open Access Journals (Sweden)

    Chenlong Zhang

    Full Text Available Just as the power of the open-source design paradigm has driven down the cost of software to the point that it is accessible to most people, the rise of open-source hardware is poised to drive down the cost of doing experimental science to expand access to everyone. To assist in this aim, this paper introduces a library of open-source 3-D-printable optics components. This library operates as a flexible, low-cost public-domain tool set for developing both research and teaching optics hardware. First, the use of parametric open-source designs using an open-source computer aided design package is described to customize the optics hardware for any application. Second, details are provided on the use of open-source 3-D printers (additive layer manufacturing to fabricate the primary mechanical components, which are then combined to construct complex optics-related devices. Third, the use of the open-source electronics prototyping platform are illustrated as control for optical experimental apparatuses. This study demonstrates an open-source optical library, which significantly reduces the costs associated with much optical equipment, while also enabling relatively easily adapted customizable designs. The cost reductions in general are over 97%, with some components representing only 1% of the current commercial investment for optical products of similar function. The results of this study make its clear that this method of scientific hardware development enables a much broader audience to participate in optical experimentation both as research and teaching platforms than previous proprietary methods.

  11. Mapping the Moral Domain

    Science.gov (United States)

    Graham, Jesse; Nosek, Brian A.; Haidt, Jonathan; Iyer, Ravi; Koleva, Spassena; Ditto, Peter H.

    2010-01-01

    The moral domain is broader than the empathy and justice concerns assessed by existing measures of moral competence, and it is not just a subset of the values assessed by value inventories. To fill the need for reliable and theoretically-grounded measurement of the full range of moral concerns, we developed the Moral Foundations Questionnaire (MFQ) based on a theoretical model of five universally available (but variably developed) sets of moral intuitions: Harm/care, Fairness/reciprocity, Ingroup/loyalty, Authority/respect, and Purity/sanctity. We present evidence for the internal and external validity of the scale and the model, and in doing so present new findings about morality: 1. Comparative model fitting of confirmatory factor analyses provides empirical justification for a five-factor structure of moral concerns. 2. Convergent/discriminant validity evidence suggests that moral concerns predict personality features and social group attitudes not previously considered morally relevant. 3. We establish pragmatic validity of the measure in providing new knowledge and research opportunities concerning demographic and cultural differences in moral intuitions. These analyses provide evidence for the usefulness of Moral Foundations Theory in simultaneously increasing the scope and sharpening the resolution of psychological views of morality. PMID:21244182

  12. Discoidin Domain Receptor 1

    Science.gov (United States)

    Song, Sunmi; Shackel, Nicholas A.; Wang, Xin M.; Ajami, Katerina; McCaughan, Geoffrey W.; Gorrell, Mark D.

    2011-01-01

    Discoidin domain receptor 1 (DDR1) is a receptor tyrosine kinase that binds and is activated by collagens. Transcriptional profiling of cirrhosis in human liver using a DNA array and quantitative PCR detected elevated mRNA expression of DDR1 compared with that in nondiseased liver. The present study characterized DDR1 expression in cirrhotic and nondiseased human liver and examined the cellular effects of DDR1 expression. mRNA expression of all five isoforms of DDR1 was detected in human liver, whereas DDR1a demonstrated differential expression in liver with hepatitis C virus and primary biliary cirrhosis compared with nondiseased liver. In addition, immunoblot analysis detected shed fragments of DDR1 more readily in cirrhotic liver than in nondiseased liver. Inasmuch as DDR1 is subject to protease-mediated cleavage after prolonged interaction with collagen, this differential expression may indicate more intense activation of DDR1 protein in cirrhotic compared with nondiseased liver. In situ hybridization and immunofluorescence localized intense DDR1 mRNA and protein expression to epithelial cells including hepatocytes at the portal-parenchymal interface and the luminal aspect of the biliary epithelium. Overexpression of DDR1a altered hepatocyte behavior including increased adhesion and less migration on extracelular matrix substrates. DDR1a regulated extracellular expression of matrix metalloproteinases 1 and 2. These data elucidate DDR1 function pertinent to cirrhosis and indicate the importance of epithelial cell–collagen interactions in chronic liver injury. PMID:21356365

  13. The source of public sphere issues——enlightenment,Habermas and Rawls%公共领域问题溯源——启蒙、罗尔斯与哈贝马斯

    Institute of Scientific and Technical Information of China (English)

    关巍

    2012-01-01

    The existence of public sphere and problem definition stems from the enlightenment ideal of the three.Rawls defines the issue of justice as the basic problem;Habermas is on new thinking of the "contact" and "intersubjectivity" in the public sphere and issues.The public sphere and theoretical thinking of public policy starts to show a gradual process.The existence concept of the public sphere is the basic problem of the debates.%论述公共领域的存在及其问题界定源于启蒙运动的三大理想;经由罗尔斯将正义问题界定为其基本问题,哈贝马斯则基于"交往"和"交互主体性"对公共领域及其问题进行了新的思考,对于公共领域及公共政策的思考展现为一个逐步展开的理论思维过程。指出公共领域的存在是公共政策制定的前提和基础,公共领域的概念理清关乎解决公共领域中的问题争论。

  14. Domain Theory for Concurrency

    DEFF Research Database (Denmark)

    Nygaard, Mikkel

    a process is capable. HOPLA can directly encode calculi like CCS, CCS with process passing, and mobile ambients with public names, and it can be given a straightforward operational semantics supporting a standard bisimulation congruence. The denotational and operational semantics are related with simple...... and associated comonads, it highlights the role of linearity in concurrent computation. Two choices of comonad yield two expressive metalanguages for higher-order processes, both arising from canonical constructions in the model. Their denotational semantics are fully abstract with respect to contextual...... input necessary for it. Such a semantics is provided, based on event structures; it agrees with the presheaf semantics at first order and exposes the tensor operation as a simple parallel composition of event structures. The categorical model obtained from presheaves is very rich in structure and points...

  15. Sourcing Excellence

    DEFF Research Database (Denmark)

    Adeyemi, Oluseyi

    2011-01-01

    Sourcing Excellence is one of the key performance indicators (KPIs) in this world of ever changing sourcing strategies. Manufacturing companies need to access and diagnose the reliability and competencies of existing suppliers in order to coordinate and develop them. This would help in managing...

  16. Domain adaptation for semantic role labeling of clinical text

    Science.gov (United States)

    Zhang, Yaoyun; Tang, Buzhou; Jiang, Min; Wang, Jingqi

    2015-01-01

    Objective Semantic role labeling (SRL), which extracts a shallow semantic relation representation from different surface textual forms of free text sentences, is important for understanding natural language. Few studies in SRL have been conducted in the medical domain, primarily due to lack of annotated clinical SRL corpora, which are time-consuming and costly to build. The goal of this study is to investigate domain adaptation techniques for clinical SRL leveraging resources built from newswire and biomedical literature to improve performance and save annotation costs. Materials and Methods Multisource Integrated Platform for Answering Clinical Questions (MiPACQ), a manually annotated SRL clinical corpus, was used as the target domain dataset. PropBank and NomBank from newswire and BioProp from biomedical literature were used as source domain datasets. Three state-of-the-art domain adaptation algorithms were employed: instance pruning, transfer self-training, and feature augmentation. The SRL performance using different domain adaptation algorithms was evaluated by using 10-fold cross-validation on the MiPACQ corpus. Learning curves for the different methods were generated to assess the effect of sample size. Results and Conclusion When all three source domain corpora were used, the feature augmentation algorithm achieved statistically significant higher F-measure (83.18%), compared to the baseline with MiPACQ dataset alone (F-measure, 81.53%), indicating that domain adaptation algorithms may improve SRL performance on clinical text. To achieve a comparable performance to the baseline method that used 90% of MiPACQ training samples, the feature augmentation algorithm required <50% of training samples in MiPACQ, demonstrating that annotation costs of clinical SRL can be reduced significantly by leveraging existing SRL resources from other domains. PMID:26063745

  17. Sourcing Excellence

    DEFF Research Database (Denmark)

    Adeyemi, Oluseyi

    2011-01-01

    Sourcing Excellence is one of the key performance indicators (KPIs) in this world of ever changing sourcing strategies. Manufacturing companies need to access and diagnose the reliability and competencies of existing suppliers in order to coordinate and develop them. This would help in managing...... in manufacturing companies. In addition, an advanced approach to sourcing involves integrating and coordinating suppliers, common materials, processes, designs and technologies across worldwide buying, design and operating locations. However, since most manufacturing companies do not have well-developed suppliers...... for global sourcing strategies in place, improvement opportunities in this area are attractive and as yet largely unrealized. Shifting from a narrow, cost-reduction emphasis with suppliers to an emphasis on globally integrated and coordinated sourcing strategies with well-developed suppliers would improve...

  18. Editorial: Humanitarian Open Source (December 2010

    Directory of Open Access Journals (Sweden)

    Leslie Hawthorn

    2010-11-01

    Full Text Available In recent years, our increasingly connected world has provided us with a greater understanding of the needs of our fellow global citizens. The devastating worldwide impact of natural disasters, disease, and poverty has been raised in our collective awareness and our ability to collectively alleviate this suffering has been brought to the fore. While many of us are familiar with donating our funds to better the lives of those less fortunate than ourselves, it is often easy to overlook a core component of facing these global challenges: information technology. The humanitarian open source movement seeks to ameliorate these sufferings through the creation of IT infrastructure to support a wide array of goals for the public good, such as providing effective healthcare or microloans to the poorest of the poor. Achieving these goals requires a sophisticated set of software and hardware tools, all of which work to save and improve lives in some of the most difficult of situations where the availability of electricity, data, IT knowledge, etc. may be low or lacking altogether. It should come as no surprise that the humanitarian open source domain attracts a great deal of attention from software developers, engineers, and others who find that they are able to both solve intense technical challenges while helping to improve the lives of others. However, to support ongoing humanitarian needs, the communities who produce humanitarian free and open source software (HFOSS and hardware have increasingly identified the need for business models to support their efforts. While the lower cost of using open source software and hardware solutions means that more funds can be directed to aid and comfort those in need, the goodwill of developer communities and the funds of grantees alone cannot grow the ecosystem sufficiently to meet ever-growing global needs. To face these challenges - poverty, global health crises, disaster relief, etc. - humanitarian open source

  19. Public Sociology

    DEFF Research Database (Denmark)

    What is the role of sociology in society? How can - and should - sociology contribute with insights relevant and useful to the outside world? Is sociology attuned to accommodate the demands of the wider public and of surrounding society? Who benefits from the knowledge produced and provided...... by sociology? What are the social implications and cultural effects of the knowledge sociology provides and creates? All of these questions, and many others, concern and centre on sociology's relationship to the surrounding society, in short to the ‘public'. All of these questions - and many others...... - will be addressed in this book.   Sociology, as the self-proclaimed ‘the science of society', finds itself in an exceptional position within the scientific community in that it studies a universe it itself is part and parcel of. This means that sociology and sociologists are inextricably connected and linked...

  20. Scientific publication

    Directory of Open Access Journals (Sweden)

    Getulio Teixeira Batista

    2007-06-01

    Full Text Available The necessary work for developing a scientific publication is sometimes underestimated and requires the effective participation of many players to obtain a result in good standard. Initially it depends upon the determination of the authors that decide to write the scientific article. Scientific writing is a very challenging and time consuming task, but at the same time essential for any scientist. A published scientific article is unquestionably one of the main indicators of scientific production, especially if published in a qualified scientific journal with highly qualified editorial committee and strict peer review procedure. By looking at evaluation criteria for scientific production of the several Thematic Scientific Committees of the Brazilian Council for Scientific and Technological Development (CNPq it becomes clear publications in scientific journals that has certified quality is the most important item in the evaluation of a scientist production.

  1. Public opinion.

    Science.gov (United States)

    Holden, A

    2013-04-01

    This opinion-based article aims to highlight the worrying decline in support for dental public health as a specialty. Not only is this specialty important for its role in commissioning services, it is crucial for the identification of vulnerable groups in society and ensuring dental services are acceptable and assessable for these populations. Dental public health also addresses the social determinants of health in its approach, acknowledging the impact of these in perpetuating inequalities and looking for multisectoral approaches to their management. This article also looks at the lack of appreciation for these determinants in dental foundation training and how a change in the structure of the programme could both address this and the current shortage of places.

  2. Public meetings

    CERN Multimedia

    Staff Association

    2012-01-01

    MARS PENSIONS CONTRACT POLICY GENERAL INFORMATION   PUBLIC MEETINGS COME AND BE INFORMED! Public meetings Monday 15 Oct. 2 pm Amphi IT, 31-3-004 Meyrin Wednesday 17 Oct. 10 am Amphi BE, 864-1-D02 Prévessin Thursday 18 Oct. 10 am Salle du Conseil/ Council Chamber 503-1-001 Meyrin Thursday 18 Oct. 2 pm Filtration Plant, 222-R-001(in English) Meyrin   Overview of the topics to be discussed Recognition of Merit – MARS Outcome of last exercise 2007 to 2012 : lessons learned Pension Fund Capital preservation policy : what is it ? Contract policy LC2IC statistics SA proposal General information CVI 2013 Voluntary programmes (PRP, SLS)  

  3. Reclaiming public space: designing for public interaction with private devices

    DEFF Research Database (Denmark)

    Eriksson, Eva; Hansen, Thomas Riisgaard; Lykke-Olesen, Andreas

    2007-01-01

    . In this paper we explore the implications of interacting in public space and how technology can be rethought to not only act as personal devices, but be the tool to reclaim the right and possibility to interact in public spaces. We introduce information exchange, social support and regulation as three central......Public spaces are changing from being ungoverned places for interaction to be more formalized, controlled, less interactive, and designed places aimed at fulfilling a purpose. Simultaneously, new personal mobile technology aims at providing private individual spaces in the public domain...... design challenges when designing for public interaction....

  4. On Probability Domains

    Science.gov (United States)

    Frič, Roman; Papčo, Martin

    2010-12-01

    Motivated by IF-probability theory (intuitionistic fuzzy), we study n-component probability domains in which each event represents a body of competing components and the range of a state represents a simplex S n of n-tuples of possible rewards-the sum of the rewards is a number from [0,1]. For n=1 we get fuzzy events, for example a bold algebra, and the corresponding fuzzy probability theory can be developed within the category ID of D-posets (equivalently effect algebras) of fuzzy sets and sequentially continuous D-homomorphisms. For n=2 we get IF-events, i.e., pairs ( μ, ν) of fuzzy sets μ, ν∈[0,1] X such that μ( x)+ ν( x)≤1 for all x∈ X, but we order our pairs (events) coordinatewise. Hence the structure of IF-events (where ( μ 1, ν 1)≤( μ 2, ν 2) whenever μ 1≤ μ 2 and ν 2≤ ν 1) is different and, consequently, the resulting IF-probability theory models a different principle. The category ID is cogenerated by I=[0,1] (objects of ID are subobjects of powers I X ), has nice properties and basic probabilistic notions and constructions are categorical. For example, states are morphisms. We introduce the category S n D cogenerated by Sn=\\{(x1,x2,ldots ,xn)in In;sum_{i=1}nxi≤ 1\\} carrying the coordinatewise partial order, difference, and sequential convergence and we show how basic probability notions can be defined within S n D.

  5. Public-Private Partnerships for Transport Infrastructure

    DEFF Research Database (Denmark)

    Figueroa, Maria Josefina; Greve, Carsten

    The provision of transport infrastructure and services creates fundamental value to society. With traditional sources of transport public funding running short, governments around the world are increasingly turning to public-private finance (PPPs) as a promising tool of public infrastructure...... of the public but of the private actor as well, to act perhaps motivated by corporate social responsibility, committing to bringing innovation and transparency in their efforts for advancing sustainability....

  6. Taxonomies of Educational Objective Domain

    OpenAIRE

    Eman Ghanem Nayef; Nik Rosila Nik Yaacob; Hairul Nizam Ismail

    2013-01-01

    This paper highlights an effort to study the educational objective domain taxonomies including Bloom’s taxonomy, Lorin Anderson’s taxonomy, and Wilson’s taxonomy. In this study a comparison among these three taxonomies have been done. Results show that Bloom’s taxonomy is more suitable as an analysis tool to Educational Objective domain.

  7. How Public Is Public Administration? A Constitutional Approach of Publicness

    Science.gov (United States)

    Ringeling, Arthur

    2015-01-01

    Both in Public Administration and in practice, there is a loss of the concept of public. A view became dominant in which markets were superior to governments and public to private. Not only did the esteem of the public sphere diminish, but also its significance in our reasoning and teaching. It became less clear what the public sphere stood for.…

  8. How Public Is Public Administration? A Constitutional Approach of Publicness

    Science.gov (United States)

    Ringeling, Arthur

    2015-01-01

    Both in Public Administration and in practice, there is a loss of the concept of public. A view became dominant in which markets were superior to governments and public to private. Not only did the esteem of the public sphere diminish, but also its significance in our reasoning and teaching. It became less clear what the public sphere stood for.…

  9. Domain wall description of superconductivity

    CERN Document Server

    Brito, F A; Silva, J C M

    2012-01-01

    In the present work we shall address the issue of electrical conductivity in superconductors in the perspective of superconducting domain wall solutions in the realm of field theory. We take our set up made out of a dynamical complex scalar field coupled to gauge field to be responsible for superconductivity and an extra scalar real field that plays the role of superconducting domain walls. The temperature of the system is interpreted as the parameter to move type I to type II domain walls. Alternatively, this means that the domain wall surface is suffering an acceleration as one goes from one type to another. On the other hand, changing from type I to type II state means a formation of a condensate what is in perfect sense of lowering the temperature around the superconductor. One can think of this scenario as an analog of holographic scenarios where this set up is replaced by a black hole near the domain wall.

  10. Texture of lipid bilayer domains

    DEFF Research Database (Denmark)

    Jensen, Uffe Bernchou; Brewer, Jonathan R.; Midtiby, Henrik Skov

    2009-01-01

    chains. By imaging the intensity variations as a function of the polarization angle, we map the lateral variations of the lipid tilt within domains. Results reveal that gel domains are composed of subdomains with different lipid tilt directions. We have applied a Fourier decomposition method......We investigate the texture of gel (g) domains in binary lipid membranes composed of the phospholipids DPPC and DOPC. Lateral organization of lipid bilayer membranes is a topic of fundamental and biological importance. Whereas questions related to size and composition of fluid membrane domain...... are well studied, the possibility of texture in gel domains has so far not been examined. When using polarized light for two-photon excitation of the fluorescent lipid probe Laurdan, the emission intensity is highly sensitive to the angle between the polarization and the tilt orientation of lipid acyl...

  11. Bodies in Movement in Public Space

    DEFF Research Database (Denmark)

    Smith, Shelley

    2014-01-01

    This article explores the sensorial and conceptual perception of space and time, in an urbanity defined by urban life and urban form in movement and flux. Particularly regarding what public spaces and domains can be in contemporary societies and how these can be designed and developed.......This article explores the sensorial and conceptual perception of space and time, in an urbanity defined by urban life and urban form in movement and flux. Particularly regarding what public spaces and domains can be in contemporary societies and how these can be designed and developed....

  12. A Novel Transfer Learning Method Based on Common Space Mapping and Weighted Domain Matching

    KAUST Repository

    Liang, Ru-Ze

    2017-01-17

    In this paper, we propose a novel learning framework for the problem of domain transfer learning. We map the data of two domains to one single common space, and learn a classifier in this common space. Then we adapt the common classifier to the two domains by adding two adaptive functions to it respectively. In the common space, the target domain data points are weighted and matched to the target domain in term of distributions. The weighting terms of source domain data points and the target domain classification responses are also regularized by the local reconstruction coefficients. The novel transfer learning framework is evaluated over some benchmark cross-domain data sets, and it outperforms the existing state-of-the-art transfer learning methods.

  13. Basement domain map of the conterminous United States and Alaska

    Science.gov (United States)

    Lund, Karen; Box, Stephen E.; Holm-Denoma, Christopher S.; San Juan, Carma A.; Blakely, Richard J.; Saltus, Richard W.; Anderson, Eric D.; DeWitt, Ed

    2015-01-01

    The basement-domain map is a compilation of basement domains in the conterminous United States and Alaska designed to be used at 1:5,000,000-scale, particularly as a base layer for national-scale mineral resource assessments. Seventy-seven basement domains are represented as eighty-three polygons on the map. The domains are based on interpretations of basement composition, origin, and architecture and developed from a variety of sources. Analysis of previously published basement, lithotectonic, and terrane maps as well as models of planetary development were used to formulate the concept of basement and the methodology of defining domains that spanned the ages of Archean to present but formed through different processes. The preliminary compilations for the study areas utilized these maps, national-scale gravity and aeromagnetic data, published and limited new age and isotopic data, limited new field investigations, and conventional geologic maps. Citation of the relevant source data for compilations and the source and types of original interpretation, as derived from different types of data, are provided in supporting descriptive text and tables.

  14. FUNDING PUBLIC INSTITUTIONS IN ROMANIA

    Directory of Open Access Journals (Sweden)

    Florin-Constantin, DIMA

    2014-11-01

    Full Text Available The development of this article started from the fact that in the field of public institutions accounting there have been many changes and it aims to capture the essential aspects of their financing. Thus the article covers a series of issues related to the credit officers, to employment, to settlement and payment of public institutions expenditure, to the budgeting and budgetary credits accounting. It also presents a brief classification of the public institutions according to several criteria, as well as their financing sources. The paper also practically presents the accounting of the budgetary credits and their sharing mechanism between the principal, secondary and tertiary budgetary credits officers.

  15. Managing Public Accountability : How Public Managers Manage Public Accountability

    NARCIS (Netherlands)

    Schillemans, Thomas

    2015-01-01

    Accountability is of growing importance in contemporary governance. The academic literature on public accountability is fraught with concerned analyses, suggesting that accountability is a problematic issue for public managers. This article investigates how public managers experience accountability

  16. The Public Communication of Geoscience

    Science.gov (United States)

    Papatheodorou, Photini; Spathopoulos, Fivos

    2016-04-01

    Communication of scientific and technological developments to the public demands an in-depth understanding of relevant public perceptions and concerns and a resultant plan of action. Until recently, very little research and practice had been recorded on this front. The presentation wishes to promote the idea of dialogue as a tool for establishing public trust in scientific and technological development, in general. Different theoretical perspectives on public communication will be examined, as defined by current research. As a case study, the media coverage of shale gas and renewable energy sources projects around the world will be presented. The final proposition of the presentation will make the case of dialogue, as an effective form of engaging the public with scientific developments and will explore dialogic practices and their application in the fields of science and technology.

  17. Social media in public health.

    Science.gov (United States)

    Kass-Hout, Taha A; Alhinnawi, Hend

    2013-01-01

    While social media interactions are currently not fully understood, as individual health behaviors and outcomes are shared online, social media offers an increasingly clear picture of the dynamics of these processes. Social media is becoming an increasingly common platform among clinicians and public health officials to share information with the public, track or predict diseases. Social media can be used for engaging the public and communicating key public health interventions, while providing an important tool for public health surveillance. Social media has advantages over traditional public health surveillance, as well as limitations, such as poor specificity, that warrant additional study. Social media can provide timely, relevant and transparent information of public health importance; such as tracking or predicting the spread or severity of influenza, west nile virus or meningitis as they propagate in the community, and, in identifying disease outbreaks or clusters of chronic illnesses. Further work is needed on social media as a valid data source for detecting or predicting diseases or conditions. Also, whether or not it is an effective tool for communicating key public health messages and engaging both, the general public and policy-makers.

  18. SUSTAINABILITY OF DIGITAL PUBLIC SPACES

    Directory of Open Access Journals (Sweden)

    Matej Hudák

    2015-07-01

    Full Text Available Purpose: Modern digital public spaces are evolving from being mostly the provider of ICT and internet connection to institutions that provide complex range of services and support for the community. With this shift in their focus new challenges are emerging, among others their sustainability.Methodology/Approach: We build on and extend the methodology of Digital Cooperatives project. Within this project, survey on 59 digital public spaces from 12 EU countries was conducted. These digital public spaces were examined in 21 areas, some of them relating to their sustainability. We further analyse the sustainability issue of these digital public spaces.Findings: We identified three main issues affecting sustainability of digital public spaces – budgeting, services and community. Digital public spaces mostly rely on public funding and have limited diversification of their funds, which increases a risk when one source of funding drops out. They also have to build a strong community of users, supporters, which will make use of their capacities and helps co-create new services and thus strengthen and improve the community itself.Originality/Value of paper: Research in this paper is based on the collection of best practices from various EU countries in the field of digital public spaces. Recommendations based on these practices could help the creation of new, and in current digital public spaces.

  19. Public meetings

    CERN Multimedia

    Staff Association

    2014-01-01

      MARS 2015 FIVE YEARLY REVIEW CONTRACT POLICY PENSION FUND GENERAL INFORMATION   COME AND BE INFORMED! PUBLIC MEETINGS Friday 3rd October at 10 am Amphi BE, 864-1-D02 Prévessin Friday 3rd October at 2 pm Salle du Conseil / Council Chamber, 503-1-001 (in English) Meyrin Monday 6th October at 10 am Kjell Johnsen Auditorium, 30-7-018 Meyrin Monday 6th October at 2 pm Salle du Conseil / Council Chamber, 503-1-001 Meyrin  

  20. Public meetings

    CERN Multimedia

    Staff Association

    2014-01-01

      Public meetings : Come and talk about your future employment conditions !   The Staff Association will come and present the results of our survey on the 2015 five-yearly review. Following the survey, the topics discussed, will be contract policy, recognition of merit (MARS), working time arrangements and family policy. After each meeting and around a cup of coffee or tea you will be able to continue the discussions. Do not hesitate to join us, the five-yearly review, it is with YOU!

  1. A public world without public relations?

    OpenAIRE

    Nayden, Nikolay

    2015-01-01

    The term "public relations" (PR) has long gained currency as meaning the practice of producing a positive public image. This article argues that public relations should be released from the prison of "PR" and, instead, reconceptualised as relations which define the public realm much as economic relations define the economy. From this point of view, three main levels of public relations can be distinguished: (1) relations between public institutions, (2) relations between citizens and public i...

  2. A public world without public relations?:

    OpenAIRE

    Nayden, Nikolay

    2009-01-01

    The term "public relations" (PR) has long gained currency as meaning the practice of producing a positive public image. This article argues that public relations should be released from the prison of "PR" and, instead, reconceptualised as relations which define the public realm much as economic relations define the economy. From this point of view, three main levels of public relations can be distinguished: (1) relations between public institutions, (2) relations between citizens and public i...

  3. Mutation of domain III and domain VI in L gene conserved domain of Nipah virus

    Science.gov (United States)

    Jalani, Siti Aishah; Ibrahim, Nazlina

    2016-11-01

    Nipah virus (NiV) is the etiologic agent responsible for the respiratory illness and causes fatal encephalitis in human. NiV L protein subunit is thought to be responsible for the majority of enzymatic activities involved in viral transcription and replication. The L protein which is the viral RNA dependent RNA polymerase has high sequence homology among negative sense RNA viruses. In negative stranded RNA viruses, based on sequence alignment six conserved domain (domain I-IV) have been determined. Each domain is separated on variable regions that suggest the structure to consist concatenated functional domain. To directly address the roles of domains III and VI, site-directed mutations were constructed by the substitution of bases at sequences 2497, 2500, 5528 and 5532. Each mutated L gene can be used in future studies to test the ability for expression on in vitro translation.

  4. Domain Walls in SU(5)

    CERN Document Server

    Poghosian, L E; Pogosian, Levon; Vachaspati, Tanmay

    2000-01-01

    We consider the Grand Unified SU(5) model with a small or vanishing cubic term in the adjoint scalar field in the potential. This gives the model an approximate or exact Z$_2$ symmetry whose breaking leads to domain walls. The simplest domain wall has the structure of a kink across which the Higgs field changes sign ($\\Phi \\to -\\Phi$) and inside which the full SU(5) is restored. The kink is shown to be perturbatively unstable for all parameters. We then construct a domain wall solution that is lighter than the kink and show it to be perturbatively stable for a range of parameters. The symmetry in the core of this domain wall is smaller than that outside. The interactions of the domain wall with magnetic monopole is discussed and it is shown that magnetic monopoles with certain internal space orientations relative to the wall pass through the domain wall. Magnetic monopoles in other relative internal space orientations are likely to be swept away on collision with the domain walls, suggesting a scenario where ...

  5. Citizen Journalism & Public Interfaces

    DEFF Research Database (Denmark)

    Brynskov, Martin; Strøbech, Kristian; Bang, Jørgen

    2011-01-01

    of views or plain information dissemination. Form the media institution’s point of view the goal was to create a platform for hyper local journalism as a source for journalistic coverage in commercial media. The group investigating civic communication within the Digital Urban Living project...... as digital providers of their own activities. In the paper we present our findings and reflect them in relation to the design of the web-portal and the profile of the users. Finally we discuss the further perspectives of this form of user/citizens involvement in public communication....

  6. Industrial application of formal models generated from domain specific languages

    NARCIS (Netherlands)

    Hooman, J.

    2016-01-01

    Domain Specific Languages (DSLs) provide a lightweight approach to incorporate formal techniques into the industrial workflow. From DSL instances, formal models and other artefacts can be generated, such as simulation models and code. Having a single source for all artefacts improves maintenance and

  7. Does the home domain reduce or enhance sickness absence?

    NARCIS (Netherlands)

    ten Brummelhuis, L.L.; ter Hoeven, C.L.; de Jong, M.T.D.; Peper, B.

    2011-01-01

    We examined depleting and enriching effects of employees’ home domain (home demands and quality time spent at home) on unscheduled absence from work. We used longitudinal, different source data from 1014 employees. The results showed that a home quality time was negatively related to absence

  8. A relational metric, its application to domain analysis, and an example analysis and model of a remote sensing domain

    Science.gov (United States)

    Mcgreevy, Michael W.

    1995-01-01

    An objective and quantitative method has been developed for deriving models of complex and specialized spheres of activity (domains) from domain-generated verbal data. The method was developed for analysis of interview transcripts, incident reports, and other text documents whose original source is people who are knowledgeable about, and participate in, the domain in question. To test the method, it is applied here to a report describing a remote sensing project within the scope of the Earth Observing System (EOS). The method has the potential to improve the designs of domain-related computer systems and software by quickly providing developers with explicit and objective models of the domain in a form which is useful for design. Results of the analysis include a network model of the domain, and an object-oriented relational analysis report which describes the nodes and relationships in the network model. Other products include a database of relationships in the domain, and an interactive concordance. The analysis method utilizes a newly developed relational metric, a proximity-weighted frequency of co-occurrence. The metric is applied to relations between the most frequently occurring terms (words or multiword entities) in the domain text, and the terms found within the contexts of these terms. Contextual scope is selectable. Because of the discriminating power of the metric, data reduction from the association matrix to the network is simple. In addition to their value for design. the models produced by the method are also useful for understanding the domains themselves. They can, for example, be interpreted as models of presence in the domain.

  9. Wavefield extrapolation in pseudodepth domain

    KAUST Repository

    Ma, Xuxin

    2013-02-01

    Wavefields are commonly computed in the Cartesian coordinate frame. Its efficiency is inherently limited due to spatial oversampling in deep layers, where the velocity is high and wavelengths are long. To alleviate this computational waste due to uneven wavelength sampling, we convert the vertical axis of the conventional domain from depth to vertical time or pseudodepth. This creates a nonorthognal Riemannian coordinate system. Isotropic and anisotropic wavefields can be extrapolated in the new coordinate frame with improved efficiency and good consistency with Cartesian domain extrapolation results. Prestack depth migrations are also evaluated based on the wavefield extrapolation in the pseudodepth domain.© 2013 Society of Exploration Geophysicists. All rights reserved.

  10. Anatomy of Mammalian Replication Domains

    Science.gov (United States)

    Takebayashi, Shin-ichiro; Ogata, Masato; Okumura, Katsuzumi

    2017-01-01

    Genetic information is faithfully copied by DNA replication through many rounds of cell division. In mammals, DNA is replicated in Mb-sized chromosomal units called “replication domains.” While genome-wide maps in multiple cell types and disease states have uncovered both dynamic and static properties of replication domains, we are still in the process of understanding the mechanisms that give rise to these properties. A better understanding of the molecular basis of replication domain regulation will bring new insights into chromosome structure and function. PMID:28350365

  11. Electrochemical Energy Storage and Power Sources for NASA Exploration Missions

    Science.gov (United States)

    Baldwin, Richard S.

    2007-01-01

    An overview of NASA s electrochemical energy storage programs for NASA Exploration missions is being presented at the 10th Electrochemical Power Sources R&D Symposium, which is being held in Williamsburg, VA on August 20-23, 2007. This public domain venue, which is sponsored by the U.S. Navy and held every two years, serves as a forum for the dissemination of research and development results related to electrochemical energy storage technology programs that are currently being supported and managed within governmental agencies. Technology areas of primary interest include batteries, fuel cells, and both overview and focused presentations on such are given by both governmental and contractual researchers. The forum also provides an opportunity to assess technology areas of mutual interest with respect to establishing collaborative and/or complementary programmatic interactions.

  12. Quality criteria for electronic publications in medicine.

    Science.gov (United States)

    Schulz, S; Auhuber, T; Schrader, U; Klar, R

    1998-01-01

    This paper defines "electronic publications in medicine (EPM)" as computer based training programs, databases, knowledge-based systems, multimedia applications and electronic books running on standard platforms and available by usual distribution channels. A detailed catalogue of quality criteria as a basis for development and evaluation of EPMs is presented. The necessity to raise the quality level of electronic publications is stressed considering aspects of domain knowledge, software engineering, media development, interface design and didactics.

  13. Ten years for the public Web

    CERN Multimedia

    2003-01-01

    Ten years ago, CERN issued a statement declaring that a little known piece of software called the World Wide Web was in the public domain. Nowadays, the Web is an indispensable part of modern communications. The idea for the Web goes back to March 1989 when CERN Computer scientist Tim Berners-Lee wrote a proposal for a 'Distributed Information Management System' for the high-energy physics community. The Web was originaly conceived and developed to meet the demand for information sharing between scientists working all over the world. There were many obstacles in the 1980s to the effective exchange of information. There was, for example a great variety of computer and network systems, with hardly any common features. The main purpose of the web was to allow scientists to access information from any source in a consistent and simple way. By Christmas 1990, Berners-Lee's idea had become the World Wide Web, with its first server and browser running at CERN. Through 1991, the Web spread to other particle physics ...

  14. Geochemical and mantle-like isotopic (Nd, Sr) composition of the Baklan Granite from the Muratdağı Region (Banaz, Uşak), western Turkey: Implications for input of juvenile magmas in the source domains of western Anatolia Eocene Miocene granites

    Science.gov (United States)

    Aydoğan, M. Selman; Çoban, Hakan; Bozcu, Mustafa; Akıncı, Ömer

    2008-07-01

    higher amount of juvenil component in their source domains.

  15. Critical SQG in bounded domains

    OpenAIRE

    Constantin, Peter; Ignatova, Mihaela

    2016-01-01

    We consider the critical dissipative SQG equation in bounded domains, with the square root of the Dirichlet Laplacian dissipation. We prove global a priori interior $C^{\\alpha}$ and Lipschitz bounds for large data.

  16. Concept Convergence in Empirical Domains

    Science.gov (United States)

    Ontañón, Santiago; Plaza, Enric

    How to achieve shared meaning is a significant issue when more than one intelligent agent is involved in the same domain. We define the task of concept convergence, by which intelligent agents can achieve a shared, agreed-upon meaning of a concept (restricted to empirical domains). For this purpose we present a framework that, integrating computational argumentation and inductive concept learning, allows a pair of agents to (1) learn a concept in an empirical domain, (2) argue about the concept's meaning, and (3) reach a shared agreed-upon concept definition. We apply this framework to marine sponges, a biological domain where the actual definitions of concepts such as orders, families and species are currently open to discussion. An experimental evaluation on marine sponges shows that concept convergence is achieved, within a reasonable number of interchanged arguments, and reaching short and accurate definitions (with respect to precision and recall).

  17. Structure of axionic domain walls

    Science.gov (United States)

    Huang, M. C.; Sikivie, P.

    1985-09-01

    The structure of axionic domain walls is investigated using the low-energy effective theory of axions and pions. We derive the spatial dependence of the phases of the Peccei-Quinn scalar field and the QCD quark-antiquark condensates inside an axionic domain wall. Thence an accurate estimate of the wall surface energy density is obtained. The equations of motion for axions, photons, leptons, and baryons in the neighborhood of axionic domain walls are written down and estimates are given for the wall reflection and transmission coefficients of these particles. Finally, we discuss the energy dissipation by axionic domain walls oscillating in the early universe due to the reflection of particles in the primordial soup.

  18. Structure of axionic domain walls

    Energy Technology Data Exchange (ETDEWEB)

    Huang, M.C.; Sikivie, P.

    1985-09-15

    The structure of axionic domain walls is investigated using the low-energy effective theory of axions and pions. We derive the spatial dependence of the phases of the Peccei-Quinn scalar field and the QCD quark-antiquark condensates inside an axionic domain wall. Thence an accurate estimate of the wall surface energy density is obtained. The equations of motion for axions, photons, leptons, and baryons in the neighborhood of axionic domain walls are written down and estimates are given for the wall reflection and transmission coefficients of these particles. Finally, we discuss the energy dissipation by axionic domain walls oscillating in the early universe due to the reflection of particles in the primordial soup.

  19. Toeplitz operators on connected domains

    Institute of Scientific and Technical Information of China (English)

    CAO; Guangfu

    2006-01-01

    The proof of the index formula of the Toeplitz operator with a continuous symbol on the Hardy space for the unit circle in the complex plane depends on the Hopftheorem. However,the analogue result of the Hopf theorem does not hold on a general connected domain. Hence,the extension of the index formula of the Toeplitz operator on a general domain needs a method which is different from that for the case of the unit circle. In the present paper, the index formula of the Toeplitz operator with a continuous symbol on the finite complex connected domain in the complex plane is obtained, and the cohomology groups of Toeplitz algebras on general domains are discussed. In addition, the Toeplitz operators with symbols in QC are also discussed.

  20. Expanding the landscape of chromatin modification (CM-related functional domains and genes in human.

    Directory of Open Access Journals (Sweden)

    Shuye Pu

    Full Text Available Chromatin modification (CM plays a key role in regulating transcription, DNA replication, repair and recombination. However, our knowledge of these processes in humans remains very limited. Here we use computational approaches to study proteins and functional domains involved in CM in humans. We analyze the abundance and the pair-wise domain-domain co-occurrences of 25 well-documented CM domains in 5 model organisms: yeast, worm, fly, mouse and human. Results show that domains involved in histone methylation, DNA methylation, and histone variants are remarkably expanded in metazoan, reflecting the increased demand for cell type-specific gene regulation. We find that CM domains tend to co-occur with a limited number of partner domains and are hence not promiscuous. This property is exploited to identify 47 potentially novel CM domains, including 24 DNA-binding domains, whose role in CM has received little attention so far. Lastly, we use a consensus Machine Learning approach to predict 379 novel CM genes (coding for 329 proteins in humans based on domain compositions. Several of these predictions are supported by very recent experimental studies and others are slated for experimental verification. Identification of novel CM genes and domains in humans will aid our understanding of fundamental epigenetic processes that are important for stem cell differentiation and cancer biology. Information on all the candidate CM domains and genes reported here is publicly available.