WorldWideScience

Sample records for valet dame roi

  1. An interview with: Stephen Paliska on valet parking.

    Science.gov (United States)

    Paliska, S

    1993-04-01

    Stephen Paliska is general manager and co-founder, with his brother, Paul, of Professional Parking Services, Inc., based in Irvine, CA. The company has been in operation for eight years. PPS's 600 valets provide parking services for more than 80 clients, including hotels, shopping centers, restaurants, and hospitals. In this interview, Paliska discusses the benefits and some potential risks of valet parking and spells out how a training program for valet attendants should be carried out.

  2. Det afghanska valet i svensk media : En diskursanalys av svensk medias rapportering om parlamentsvalet 2010

    OpenAIRE

    Arvidsson, Jonathan

    2013-01-01

    Den här uppsatsen analyserar svensk medias rapportering om valet i Afghanistan 2010. Med hjälp av metoder framtagna av Van Dijk har en analys av artiklar som berör valet 2010 gjorts. De teoretiska utgångspunkterna är postkolonialism och orientalism. Med hjälp av de perspektiven och Van Dijks medieanalys analyseras materialet för att tydliggöra strukturer i media.

  3. DAMe

    DEFF Research Database (Denmark)

    Zepeda Mendoza, Marie Lisandra; Bohmann, Kristine; Baez, Aldo Carmona

    2016-01-01

    Background: DNA metabarcoding is an approach for identifying multiple taxa in an environmental sample using specific genetic loci and taxa-specific primers. When combined with high-throughput sequencing it enables the taxonomic characterization of large numbers of samples in a relatively time- an...

  4. Dual-ROI radionuclide ventriculography

    International Nuclear Information System (INIS)

    Standke, R.; Hoer, G.; Kanemoto, N.; Maul, F.D.

    1981-01-01

    Accurate determination of the left ventricular activity function is the precondition for a quantitative analysis of the ventricular volume function. During the volume reduction period, extra-myocardial tissue penetrates into the ROI of the late diastole. This curve-distorting activity cannot be eliminated by a single-ROI technique. Of the multiple-ROI techniques, the dual-ROI method is the least complex and tedions and involves the least methodological error. At the time of maximum volume change rates, the curve may be distorted if the late diastolic ROI is inaccurately defined. A method is described which uses only the counting rate over the late diastolic ROI and corrects it only on the basis of the counting rate of the late systolic ROI. The time parameters remain uninfluenced by this correction method while the volumetric parameters are corrected. (orig./APR) [de

  5. Dame Cicely Saunders: An Omega Interview.

    Science.gov (United States)

    Kastenbaum, Robert

    1993-01-01

    Presents interview with Dame Cicely Saunders, founder of international hospice care movement. Saunders describes her background and experiences that led her to form the hospice movement and discusses the need for pain control for terminally ill patients. Saunders also notes her opposition to euthanasia and physician-assisted suicide. (NB)

  6. RFID Benefits; Looking Beyond ROI

    National Research Council Canada - National Science Library

    Guilford, Shane; Kutis, Mark C

    2005-01-01

    ...) into the logistics process that are not captured by traditional Return on Investment (ROI) analysis. The authors seek to identify some of these benefits to determine their overall contribution to the value of new technology implementation...

  7. Return on investment (ROI) proposal preparation guide

    International Nuclear Information System (INIS)

    Valero, O.J.

    1998-01-01

    The ROI Proposal Preparation Guide is a tool to assist Hanford waste generators in preparing ROI proposal forms for submittal to Department of Energy, Richland Operations Office (DOE/RL) for funding. The guide describes the requirements for submitting an ROI proposal and provides examples of completed ROI forms. The intent is to assist waste generators in identifying projects that meet the criteria, provide information necessary to complete the ROI forms, and submit a proposal that is eligible to receive funding

  8. AMS Radiocarbon Dating at Notre Dame

    Science.gov (United States)

    Howard, Sean

    2014-09-01

    Current development of a local radiocarbon dating method using Accelerator Mass Spectrometry (AMS) at the University of Notre Dame seeks to provide sensitive, reproducible, and accurate measurements for future interdisciplinary projects. While AMS has been the premier radiocarbon dating method for a few decades, repurposing Notre Dame's FN Tandem accelerator for radiocarbon dating has provided many unique challenges. Experiments have shown radiocarbon dating possible and reproducible using the FN Tandem accelerator, found optimal settings for said accelerator, and established sensitivity limits comparable to dedicated radiocarbon dating facilities. In addition, there is ongoing work to create a local chemistry lab to convert organic artifacts into graphite samples to be dated locally. Once the chemistry side has been completed, several artifacts from the IAEA's radiocarbon intercomparison have been procured. Dating these previously studied artifacts will provide an additional measure on the accuracy and repeatability of both the accelerator and chemical treatment. Provided that these IAEA artifacts are dated successfully, exciting projects will ensue, such as the authentication of artwork and dating of anthropological samples.

  9. Return on investment (ROI) proposal preparation guide

    International Nuclear Information System (INIS)

    BOOM, R.J.

    1999-01-01

    Section I: Background Return on Investment (ROI) Proposal Preparation Guide-- Over $1.9M is available to fund fiscal year (FY) 2000 waste minimization projects on the Hanford Site. This money was allocated by the US. Department of Energy Headquarters (DOE-HQ). The U.S. Department of Energy, Richland Operations (RL) and the U.S. Department of Energy, Office of River Protection (ORP) are currently seeking pollution prevention proposals from across the Hanford Site that provide a high return-on-investment (ROI) by reducing waste and associated management costs. Purpose of ROI Training The ROI Proposal Preparation Guide is a tool to assist Hanford waste generators in preparing ROI proposal forms for submittal to RL for funding. The guide describes the requirements for submitting an ROI proposal and provides examples of completed ROI forms. The intent is to assist waste generators in identifying projects that meet the criteria, provide information necessary to complete the ROI forms, and submit a proposal that is eligible to receive funding. This guide accompanies the one-hour training workshop on how to prepare and submit an ROI proposal

  10. Maximizing ROI (return on information)

    Energy Technology Data Exchange (ETDEWEB)

    McDonald, B.

    2000-05-01

    The role and importance of managing information are discussed, underscoring the importance by quoting from the report of the International Data Corporation, according to which Fortune 500 companies lost $ 12 billion in 1999 due to inefficiencies resulting from intellectual re-work, substandard performance , and inability to find knowledge resources. The report predicts that this figure will rise to $ 31.5 billion by 2003. Key impediments to implementing knowledge management systems are identified as : the cost and human resources requirement of deployment; inflexibility of historical systems to adapt to change; and the difficulty of achieving corporate acceptance of inflexible software products that require changes in 'normal' ways of doing business. The author recommends the use of model, document and rule-independent systems with a document centered interface (DCI), employing rapid application development (RAD) and object technologies and visual model development, which eliminate these problems, making it possible for companies to maximize their return on information (ROI), and achieve substantial savings in implementation costs.

  11. Art Loft Berliini südames / Dagmar Reinolt

    Index Scriptorium Estoniae

    Reinolt, Dagmar

    2015-01-01

    Berliini südames asub Saksa arhitektuuribüroo Eike Beckeri poolt loodud kümnekorruseline mängulise fassaadiga hoone. Eesti sisearhitektid Tiina Kesküla, Kätlin Ölluk ja Katy Seppel on loonud sealsetesse korteritesse hubase interjööri. Artiklis on vaatluse all üks korteritest - galeriikorter

  12. Les dames de l’horizon

    Directory of Open Access Journals (Sweden)

    María Pilar GARCÍA CUETOS

    2007-01-01

    Full Text Available À partir du XIIIe siècle, apparaît un nouveau type de tours terminées par des flèches ajourées qui deviennent les « dames du paysage et de la ville ». Ces tours ne répondent pas à une véritable nécessité mais à une volonté d’affirmer le pouvoir des commanditaires de ces cathédrales et de démontrer le savoir-faire des maîtres d’œuvre. En Castille, les façades des cathédrales de Burgos, de León et d’Oviedo sont terminées au XVe siècle et s’ornent de flèches ajourées. Pour ces travaux Alonso de Cartagena, évêque de Burgos, fit appel au maître allemand Juan de Colonia ; le modèle de la tour ajourée passa ensuite à León et à Oviedo. Ces tours témoignent de l’évolution technique durant le gothique tardif et sont une preuve des liens artistiques existant entre cette partie de la péninsule ibérique et le sud-ouest français (Saintes, Bordeaux, Niort, Moëze.Entrado el siglo XIII, se desarrolla la tipología de las torres rematadas mediante flechas caladas, que no eran necesarias en sentido estricto y responden a la voluntad de hacer presente el poder de las catedrales, que con esos elementos se convierten en las auténticas dueñas del paisaje y del horizonte urbano y hacen patente el poder de sus comitentes y la pericia de sus constructores. En el siglo XV, en Castilla se completan las fachadas de las catedrales de Burgos, León y Oviedo, rematando sus torres mediante flechas caladas, novedad que llegó a Burgos por iniciativa del obispo Alonso de Cartagena y de la mano del maestro alemán Juan de Colonia, y el modelo marcado por las flechas burgalesas se asimiló en León y en Oviedo. En estas torres se manifiesta la evolución técnica de la flecha calada en España (Burgos-León-Oviedo y en el caso de la torre de Oviedo, su semejanza con las del oeste francés (Saintes, Burdeos, Niort, Moëze evidencia las relaciones entre Asturias y el Arco Atlántico.

  13. Notre Dame'i traagilised armastajad Pirita kloostri iidsete varemete vahel / Aigi Viira

    Index Scriptorium Estoniae

    Viira, Aigi

    2003-01-01

    Meelelahutustootja Comedy Productions eestvedamisel peaks etenduma 2004.a. suvel muusikal "Notre Dame de Paris" ("Jumalaema kirik Pariisis"). Lisaks sõnum "Muusikalivormi pakendatud kirjandusklassika"

  14. Measuring the ROI on Knowledge Management Systems.

    Science.gov (United States)

    Wickhorst, Vickie

    2002-01-01

    Defines knowledge management and corporate portals and provides a model that can be applied to assessing return on investment (ROI) for a knowledge management solution. Highlights include leveraging knowledge in an organization; assessing the value of human capital; and the Intellectual Capital Performance Measurement Model. (LRW)

  15. Roi Vaara tähendussõnad

    Index Scriptorium Estoniae

    2003-01-01

    10. II oli Tallinna Kunstihoones soome kunstniku Roi Vaara performance Tallinna Kunstihoone uue juhataja Reiu Tüüri, kuraatorite Andres Härmi ja Reet Varblase inauguratsiooni ning TK interneti lehekülje esitluse puhul. Uue ühtse nimekuju KU autorit Edith Parist autasustati 1934 krooniga

  16. Attention to detail helps Clarian measure ROI.

    Science.gov (United States)

    2007-01-01

    Clarian Health takes a risk and embarks on a branding strategy. Taking a multi-integrated approach, with The Heavy Weights in Indianapolis, Clarian started managing its marketing by tracking return on investment (ROI) and making the most of a CRM database. In a groundbreaking approach, it found that it was actually able to turn its marketing effort into a money-maker, leading higher-ups to see its outreach efforts as necessity.

  17. Normalisation: ROI optimal treatment planning - SNDH pattern

    International Nuclear Information System (INIS)

    Shilvat, D.V.; Bhandari, Virendra; Tamane, Chandrashekhar; Pangam, Suresh

    2001-01-01

    Dose precision maximally to the target / ROI (Region of Interest), taking care of tolerance dose of normal tissue is the aim of ideal treatment planning. This goal is achieved with advanced modalities such as, micro MLC, simulator and 3-dimensional treatment planning system. But SNDH PATTERN uses minimum available resources as, ALCYON II Telecobalt unit, CT Scan, MULTIDATA 2-dimensional treatment planning system to their maximum utility and reaches to the required precision, same as that with advance modalities. Among the number of parameters used, 'NORMALISATION TO THE ROI' will achieve the aim of the treatment planning effectively. This is dealing with an example of canal of esophagus modified treatment planning based on SNDH pattern. Results are attractive and self explanatory. By implementing SNDH pattern, the QUALITY INDEX of treatment plan will reach to greater than 90%, with substantial reduction in dose to the vital organs. Aim is to utilize the minimum available resources efficiently to achieve highest possible precision for delivering homogenous dose to ROI while taking care of tolerance dose to vital organs

  18. Practical implementation of Channelized Hotelling Observers: Effect of ROI size.

    Science.gov (United States)

    Ferrero, Andrea; Favazza, Christopher P; Yu, Lifeng; Leng, Shuai; McCollough, Cynthia H

    2017-03-01

    Fundamental to the development and application of channelized Hotelling observer (CHO) models is the selection of the region of interest (ROI) to evaluate. For assessment of medical imaging systems, reducing the ROI size can be advantageous. Smaller ROIs enable a greater concentration of interrogable objects in a single phantom image, thereby providing more information from a set of images and reducing the overall image acquisition burden. Additionally, smaller ROIs may promote better assessment of clinical patient images as different patient anatomies present different ROI constraints. To this end, we investigated the minimum ROI size that does not compromise the performance of the CHO model. In this study, we evaluated both simulated images and phantom CT images to identify the minimum ROI size that resulted in an accurate figure of merit (FOM) of the CHO's performance. More specifically, the minimum ROI size was evaluated as a function of the following: number of channels, spatial frequency and number of rotations of the Gabor filters, size and contrast of the object, and magnitude of the image noise. Results demonstrate that a minimum ROI size exists below which the CHO's performance is grossly inaccurate. The minimum ROI size is shown to increase with number of channels and be dictated by truncation of lower frequency filters. We developed a model to estimate the minimum ROI size as a parameterized function of the number of orientations and spatial frequencies of the Gabor filters, providing a guide for investigators to appropriately select parameters for model observer studies.

  19. PERANCANGAN APLIKASI POINT OF SALES BERBASISKAN CUSTOMER RELATIONSHIP MANAGEMENT PADA TOKO BUKU NOTRE-DAME

    Directory of Open Access Journals (Sweden)

    Gintoro Gintoro

    2008-05-01

    Full Text Available Notre-Dame Bookshop is a company which growth is quite fast. For only 2 years, this bookshop hasopened 2 new branches. Unfortunately, this growth was not followed up by the development of company onsales system and shop marketing. Therefore, this research was conducted to facilitate all transaction in pointof sales from Notre-Dame Bookshop, and also to implement Customer Relationship Management (CRMapplication in it. Research method used was a direct survey in field, a library study, an interview, aquestionaire, and a design method. The benefit of creating this application is to provide some solutions forproblem faced by Notre-Dame Bookshop, such as an easier recording of transaction, a more orderly andimposible to be lost managing of customers’ data, and a more practical and detailed reporting. Theconclusion got is with the existence of Customer Relationship Management (CRM aplication integrated withpoint of sales, Notre-Dame Bookshop will be able to increase service to the customers by providing a fastand clear information, managing customers and company campaigne better, and obtaining details oftransaction faster and easier. Thus, the Notre-Dame Bookshop can be more sustained in creating their visionand mission.Keywords: point of sales, customer relationship management, company campaign

  20. Notre Dame Nuclear Database: A New Chart of Nuclides

    Science.gov (United States)

    Lee, Kevin; Khouw, Timothy; Fasano, Patrick; Mumpower, Matthew; Aprahamian, Ani

    2014-09-01

    Nuclear data is critical to research fields from medicine to astrophysics. We are creating a database, the Notre Dame Nuclear Database, which can store theoretical and experimental datasets. We place emphasis on storing metadata and user interaction with the database. Users are able to search in addition to the specific nuclear datum, the author(s), the facility where the measurements were made, the institution of the facility, and device or method/technique used. We also allow users to interact with the database by providing online search, an interactive nuclide chart, and a command line interface. The nuclide chart is a more descriptive version of the periodic table that can be used to visualize nuclear properties such as half-lives and mass. We achieve this by using D3 (Data Driven Documents), HTML, and CSS3 to plot the nuclides and color them accordingly. Search capabilities can be applied dynamically to the chart by using Python to communicate with MySQL, allowing for customization. Users can save the customized chart they create to any image format. These features provide a unique approach for researchers to interface with nuclear data. We report on the current progress of this project and will present a working demo that highlights each aspect of the aforementioned features. This is the first time that all available technologies are put to use to make nuclear data more accessible than ever before in a manner that is much easier and fully detailed. This is a first and we will make it available as open source ware.

  1. DAMES. A datafile for the macro-emissions of the Dutch electricity supply in 1995, 1998, 2010, 2020, and 2030

    International Nuclear Information System (INIS)

    Gijsen, A.; Spakman, J.

    2001-02-01

    This report describes the datafile DAMES (Dutch abbreviation for Database Macro-emissions of the Electricity Sector). DAMES offers an overall view of the Netherlands' electricity supply and it's attendant emissions of CO2, NOx and SO2. It incorporates results from different sources: (1) monitoring reports on production and emissions from central power plants, (2) an electricity supply model for future years and (3) a database with actual and future emission factors. In DAMES, the electricity supply has been divided into contributions from: central production (electricity produced by companies producing electricity as core business), decentralized production (electricity produced by companies producing electricity as by-product) and the import balance. Within these three 'subsectors', DAMES calculates production and emissions on the level of installation types. For combined heat and power production (CHP-installations), DAMES allocates a distinct fraction of the total emissions to the produced electricity. DAMES calculates aggregated emissions per kWh, an indicator that is often used in calculations on effectiveness measures. Furthermore, DAMES has an advantage over previous used instruments that it gives an integral overview of the effect of the fuel-mix, CHP, imports and the part of sustainable energy sources. DAMES has been applied on the years 1995/1998 and the future years 2010, 2020 and 2030. For the future years, prognoses have been used from two different scenarios of the CPB (Dutch Central Planning Bureau). These scenarios are called Global Competition and European Coordination. 18 refs

  2. Dynamic Assessment of Microbial Ecology (DAME): A web app for interactive analysis and visualization of microbial sequencing data

    Science.gov (United States)

    Dynamic Assessment of Microbial Ecology (DAME) is a shiny-based web application for interactive analysis and visualization of microbial sequencing data. DAME provides researchers not familiar with R programming the ability to access the most current R functions utilized for ecology and gene sequenci...

  3. Measuring Digital Signage ROI : A combination of Digital Signage and Mobile Advertising as a method for measuring Digtal Signage ROI

    OpenAIRE

    Helander, Fredrik

    2010-01-01

    Marketing has changed a lot the past decade. New modern marketing channels have been developed and marketing have become more effective. This has affected the expectations advertisers have on advertising channels. One thing advertisers increasingly expect is to be able to efficiently measure the result of advertising, the ROI. A method for measuring ROI of digital signage is in focus in this study. The measurement is enabled by a combination of digital signage and mobile advertising. First a ...

  4. Glosas sobre la Conferencia de Nôtre Dame: democracia, derechos humanos y paz en Colombia

    Directory of Open Access Journals (Sweden)

    Iván Orozco Abad

    2014-06-01

    Full Text Available Entre los días 26 y 27 de marzo de 2001 tuvo lugar en la Universidad de Notre Dame (Indiana un seminario sobre “Democracia, Derechos Humanos y Paz en Colombia”. El evento fue organizado y apadrinado por el Kellogg Institute for International Studies y por la Comisión Colombiana de Juristas.

  5. Dynamic assessment of microbial ecology (DAME): a web app for interactive analysis and visualization of microbial sequencing data.

    Science.gov (United States)

    Piccolo, Brian D; Wankhade, Umesh D; Chintapalli, Sree V; Bhattacharyya, Sudeepa; Chunqiao, Luo; Shankar, Kartik

    2018-03-15

    Dynamic assessment of microbial ecology (DAME) is a Shiny-based web application for interactive analysis and visualization of microbial sequencing data. DAME provides researchers not familiar with R programming the ability to access the most current R functions utilized for ecology and gene sequencing data analyses. Currently, DAME supports group comparisons of several ecological estimates of α-diversity and β-diversity, along with differential abundance analysis of individual taxa. Using the Shiny framework, the user has complete control of all aspects of the data analysis, including sample/experimental group selection and filtering, estimate selection, statistical methods and visualization parameters. Furthermore, graphical and tabular outputs are supported by R packages using D3.js and are fully interactive. DAME was implemented in R but can be modified by Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), and JavaScript. It is freely available on the web at https://acnc-shinyapps.shinyapps.io/DAME/. Local installation and source code are available through Github (https://github.com/bdpiccolo/ACNC-DAME). Any system with R can launch DAME locally provided the shiny package is installed. bdpiccolo@uams.edu.

  6. Robust finger vein ROI localization based on flexible segmentation.

    Science.gov (United States)

    Lu, Yu; Xie, Shan Juan; Yoon, Sook; Yang, Jucheng; Park, Dong Sun

    2013-10-24

    Finger veins have been proved to be an effective biometric for personal identification in the recent years. However, finger vein images are easily affected by influences such as image translation, orientation, scale, scattering, finger structure, complicated background, uneven illumination, and collection posture. All these factors may contribute to inaccurate region of interest (ROI) definition, and so degrade the performance of finger vein identification system. To improve this problem, in this paper, we propose a finger vein ROI localization method that has high effectiveness and robustness against the above factors. The proposed method consists of a set of steps to localize ROIs accurately, namely segmentation, orientation correction, and ROI detection. Accurate finger region segmentation and correct calculated orientation can support each other to produce higher accuracy in localizing ROIs. Extensive experiments have been performed on the finger vein image database, MMCBNU_6000, to verify the robustness of the proposed method. The proposed method shows the segmentation accuracy of 100%. Furthermore, the average processing time of the proposed method is 22 ms for an acquired image, which satisfies the criterion of a real-time finger vein identification system.

  7. Robust Finger Vein ROI Localization Based on Flexible Segmentation

    Directory of Open Access Journals (Sweden)

    Dong Sun Park

    2013-10-01

    Full Text Available Finger veins have been proved to be an effective biometric for personal identification in the recent years. However, finger vein images are easily affected by influences such as image translation, orientation, scale, scattering, finger structure, complicated background, uneven illumination, and collection posture. All these factors may contribute to inaccurate region of interest (ROI definition, and so degrade the performance of finger vein identification system. To improve this problem, in this paper, we propose a finger vein ROI localization method that has high effectiveness and robustness against the above factors. The proposed method consists of a set of steps to localize ROIs accurately, namely segmentation, orientation correction, and ROI detection. Accurate finger region segmentation and correct calculated orientation can support each other to produce higher accuracy in localizing ROIs. Extensive experiments have been performed on the finger vein image database, MMCBNU_6000, to verify the robustness of the proposed method. The proposed method shows the segmentation accuracy of 100%. Furthermore, the average processing time of the proposed method is 22 ms for an acquired image, which satisfies the criterion of a real-time finger vein identification system.

  8. Robust Finger Vein ROI Localization Based on Flexible Segmentation

    Science.gov (United States)

    Lu, Yu; Xie, Shan Juan; Yoon, Sook; Yang, Jucheng; Park, Dong Sun

    2013-01-01

    Finger veins have been proved to be an effective biometric for personal identification in the recent years. However, finger vein images are easily affected by influences such as image translation, orientation, scale, scattering, finger structure, complicated background, uneven illumination, and collection posture. All these factors may contribute to inaccurate region of interest (ROI) definition, and so degrade the performance of finger vein identification system. To improve this problem, in this paper, we propose a finger vein ROI localization method that has high effectiveness and robustness against the above factors. The proposed method consists of a set of steps to localize ROIs accurately, namely segmentation, orientation correction, and ROI detection. Accurate finger region segmentation and correct calculated orientation can support each other to produce higher accuracy in localizing ROIs. Extensive experiments have been performed on the finger vein image database, MMCBNU_6000, to verify the robustness of the proposed method. The proposed method shows the segmentation accuracy of 100%. Furthermore, the average processing time of the proposed method is 22 ms for an acquired image, which satisfies the criterion of a real-time finger vein identification system. PMID:24284769

  9. Biopsy Needle Localization and Tracking Using ROI-RK Method

    Directory of Open Access Journals (Sweden)

    Yue Zhao

    2014-01-01

    Full Text Available ROI-RK method is a biopsy needle localization and tracking method. Previous research work has proved that it has a robust performance on different series of simulated 3D US volumes. Unfortunately, in real situations, because of the strong speckle noise of the ultrasound image and the different echogenic properties of the tissues, the real 3D US volumes have more complex background than the simulated images used previously. In this paper, to adapt the ROI-RK method in real 3D US volumes, a line-filter enhancement calculation only in the ROI is added to increase the contrast between the needle and background tissue, decreasing the phenomenon of expansion of the biopsy needle due to reverberation of ultrasound in the needle. To make the ROI-RK method more stable, a self-correction system is also implemented. Real data have been acquired on an ex vivo heart of lamb. The result of the ROI-RK method shows that it is capable to localize and track the biopsy needle in real situations, and it satisfies the demand of real-time application.

  10. Reproducibility of CT bone dosimetry: Operator versus automated ROI definition

    International Nuclear Information System (INIS)

    Louis, O.; Luypaert, R.; Osteaux, M.; Kalender, W.

    1988-01-01

    Intrasubject reproducibility with repeated determination of vertebral mineral density from a given set of CT images was investigated. The region of interest (ROI) in 10 patient scans was selected by four independent operators either manually or with an automated procedure separating cortical and spongeous bone, the operators being requested to interact in ROI selection. The mean intrasubject variation was found to be much lower with the automated process (0.3 to 0.6%) than with the conventional method (2.5 to 5.2%). In a second study, 10 patients were examined twice to determine the reproducibility of CT slice selection by the operator. The errors were of the same order of magnitude as in ROI selection. (orig.)

  11. Business and magic: Émile Zola, Au Bonheur des Dames and modern consumption

    Directory of Open Access Journals (Sweden)

    Everardo Rocha

    2014-12-01

    Full Text Available This work examines the emergence of grand magazines and how this new commerce was crucial in establishing the phenomenon of consumption in modernity. In particular, it has been investigated through Émile Zola’s novel, Au Bonheur des Dames, how the social values and sales models of grand magazines appear as “cathedrals of modern consumption”, creating, at once, a world of business and magic.

  12. Finansiell Bootstrapping i SME : en kvantitativ studie om hur ett starkt socialt och affärsmässigt nätverk påverkar valet av bootstrappingmetoder

    OpenAIRE

    Nilsson, Ida; Sacic, Zehra

    2016-01-01

    Syftet med denna kandidatuppsats är se hur ett starkt socialt och affärsmässigt nätverk påverkar valet av bootstrappingmetoder i små och medelstora företag (SME). Detta eftersom SME står för 99,9 procent av samtliga företag på den svenska marknaden och därmed är betydelsefulla för landets ekonomiska tillväxt och sysselsättning. Däremot möter SME svårigheter vid extern finansiering av sin verksamhet. SME kompenserar detta genom att engagera sig i olika ”bootstrappingaktiviteter”. Bootstrapping...

  13. What's the ROI for resolving the nursing faculty shortage?

    Science.gov (United States)

    Kowalski, Karren; Kelley, Brian M

    2013-01-01

    The nursing faculty shortage will have a fundamental impact on the ability to produce nurses. For most nursing schools and states, however, concerns about the relative merits of different solutions to the nursing faculty shortage are misplaced. Without significantly increased visibility and definition, accompanied by a clear public, private, and health care organization return on investment (ROI), proposing solutions to the nursing faculty shortage is at best premature and at worst irrelevant. There is simply too much competition for resources to expect that a vaguely defined and invisible problem with no rationale for increased investment will receive sufficient support from critical decision makers and constituencies. First must come problem definition, visibility, and ROI. Only then can the case be made for implementing solutions to the nursing faculty shortage.

  14. Cloud computing and ROI a new framework for it strategy

    CERN Document Server

    Mohapatra, Sanjay

    2014-01-01

    This book develops an IT strategy for cloud computing that helps businesses evaluate their readiness for cloud services and calculate the ROI. The framework provided helps reduce risks involved in transitioning from traditional "on site" IT strategy to virtual "cloud computing." Since the advent of cloud computing, many organizations have made substantial gains implementing this innovation. Cloud computing allows companies to focus more on their core competencies, as IT enablement is taken care of through cloud services. Cloud Computing and ROI includes case studies covering retail, automobile and food processing industries. Each of these case studies have successfully implemented the cloud computing framework and their strategies are explained. As cloud computing may not be ideal for all businesses, criteria?are also offered to help determine if this strategy should be adopt.

  15. Performance of shear-wave elastography for breast masses using different region-of-interest (ROI) settings.

    Science.gov (United States)

    Youk, Ji Hyun; Son, Eun Ju; Han, Kyunghwa; Gweon, Hye Mi; Kim, Jeong-Ah

    2018-07-01

    Background Various size and shape of region of interest (ROI) can be applied for shear-wave elastography (SWE). Purpose To investigate the diagnostic performance of SWE according to ROI settings for breast masses. Material and Methods To measure elasticity for 142 lesions, ROIs were set as follows: circular ROIs 1 mm (ROI-1), 2 mm (ROI-2), and 3 mm (ROI-3) in diameter placed over the stiffest part of the mass; freehand ROIs drawn by tracing the border of mass (ROI-M) and the area of peritumoral increased stiffness (ROI-MR); and circular ROIs placed within the mass (ROI-C) and to encompass the area of peritumoral increased stiffness (ROI-CR). Mean (E mean ), maximum (E max ), and standard deviation (E SD ) of elasticity values and their areas under the receiver operating characteristic (ROC) curve (AUCs) for diagnostic performance were compared. Results Means of E mean and E SD significantly differed between ROI-1, ROI-2, and ROI-3 ( P Shear-wave elasticity values and their diagnostic performance vary based on ROI settings and elasticity indices. E max is recommended for the ROIs over the stiffest part of mass and an ROI encompassing the peritumoral area of increased stiffness is recommended for elastic heterogeneity of mass.

  16. On the Origins of the Lubok Text The Register of Dames and Handsome Maidens

    Directory of Open Access Journals (Sweden)

    Alexandra A. Pletneva

    2015-08-01

    Full Text Available This article is devoted to the attempts to identify the prototype and the sources of The Register of Dames and Handsome Maidens, which was part of the lubok tradition of the 17th–18th centuries. This text is a list of female proper names provided with humorous commentaries. The satirical texts of the 17th century frequently replicate the structure of the documents and literary texts of those times. Some satirical texts represent the structure of church services, an alphabet prayer, a petition, etc. Among the manuscript and lubok texts of the 17th–18th centuries, there is a significant number of texts which include lists of names with humorous characteristics. These texts may be dated back to the Old Russian dictionaries of proper names, e.g., the Commentaries on the Names in Alphabetical Order by Maximus the Greek. Unlike the other texts organized as lists of names, The Register of Dames is related to the wedding ritual, and its probable source can be identified as the register of potential brides for Tsar Alexey Mikhailovich, which was compiled in 1669-1670, when Tsar Alexey was planning to marry for a second time. The text of the Register includes all but two of the names that appear in the probable prototype, including rather rare names. Furthermore, the name Natalia—that is, the tsar’s future wife—is particularly emphasized.

  17. Annotating image ROIs with text descriptions for multimodal biomedical document retrieval

    Science.gov (United States)

    You, Daekeun; Simpson, Matthew; Antani, Sameer; Demner-Fushman, Dina; Thoma, George R.

    2013-01-01

    Regions of interest (ROIs) that are pointed to by overlaid markers (arrows, asterisks, etc.) in biomedical images are expected to contain more important and relevant information than other regions for biomedical article indexing and retrieval. We have developed several algorithms that localize and extract the ROIs by recognizing markers on images. Cropped ROIs then need to be annotated with contents describing them best. In most cases accurate textual descriptions of the ROIs can be found from figure captions, and these need to be combined with image ROIs for annotation. The annotated ROIs can then be used to, for example, train classifiers that separate ROIs into known categories (medical concepts), or to build visual ontologies, for indexing and retrieval of biomedical articles. We propose an algorithm that pairs visual and textual ROIs that are extracted from images and figure captions, respectively. This algorithm based on dynamic time warping (DTW) clusters recognized pointers into groups, each of which contains pointers with identical visual properties (shape, size, color, etc.). Then a rule-based matching algorithm finds the best matching group for each textual ROI mention. Our method yields a precision and recall of 96% and 79%, respectively, when ground truth textual ROI data is used.

  18. Education for Sustainable Development: Assessment of the Current Situation at the Faculty of Engineering of Notre Dame University--Louaize

    Science.gov (United States)

    Salem, Talal; Harb, Jacques

    2012-01-01

    There is a growing need to incorporate educational sustainable development (ESD) principles into engineering education. This paper identifies engineering competencies within the Faculty of Engineering at Notre Dame University--Louaize and the means to shift towards sustainability. ESD tools are used to carry the analysis, keeping in mind the…

  19. Integrating Social Entrepreneurship with Service and Experiential Learning: A Case Study at the University of Notre Dame

    Science.gov (United States)

    Paulsen, Melissa A.

    2012-01-01

    The Gigot Center for Entrepreneurship, supported by the Mendoza College of Business at the University of Notre Dame, launched a Microventuring Certificate Program in the fall of 2006, designed to engage upper-level undergraduate business and nonbusiness students in the provision of technical assistance and other consulting services to low-income…

  20. Reinterpretation of ozone data from Base Roi Baudouin

    Science.gov (United States)

    Kelder, H.; Muller, C.

    1994-01-01

    The ozone Dobson measurements obtained in Antarctica at the Belgian 'Base Roi Baudouin' (70 deg 26 min S, 24 deg 19 min E) in 1965 and 1966 were retrieved from the KNMI (Royal Netherlands Meteorological Institute) archives in De Bilt. Despite excellent treatment at the time by the meteorologists in charge at the KNMI (Wisse and Meerburg, 1969), a study of the original observers notes was made in order to check possible seasonal ozone phenomena. No systematic anomaly in the first analysis was found; meteorological data from the site together with Brewer-Mast ozone soundings concur that the conditions did not correspond either in 1965 nor 1966 to the current ozone hole (Farman et al., 1985) situation, however, the data yields excellent correlation with stratospheric temperature and shows in 1966 a clear November maximum in opposition to an October value around 344 Dobson units.

  1. Roi Detection and Vessel Segmentation in Retinal Image

    Science.gov (United States)

    Sabaz, F.; Atila, U.

    2017-11-01

    Diabetes disrupts work by affecting the structure of the eye and afterwards leads to loss of vision. Depending on the stage of disease that called diabetic retinopathy, there are sudden loss of vision and blurred vision problems. Automated detection of vessels in retinal images is a useful study to diagnose eye diseases, disease classification and other clinical trials. The shape and structure of the vessels give information about the severity of the disease and the stage of the disease. Automatic and fast detection of vessels allows for a quick diagnosis of the disease and the treatment process to start shortly. ROI detection and vessel extraction methods for retinal image are mentioned in this study. It is shown that the Frangi filter used in image processing can be successfully used in detection and extraction of vessels.

  2. ROI DETECTION AND VESSEL SEGMENTATION IN RETINAL IMAGE

    Directory of Open Access Journals (Sweden)

    F. Sabaz

    2017-11-01

    Full Text Available Diabetes disrupts work by affecting the structure of the eye and afterwards leads to loss of vision. Depending on the stage of disease that called diabetic retinopathy, there are sudden loss of vision and blurred vision problems. Automated detection of vessels in retinal images is a useful study to diagnose eye diseases, disease classification and other clinical trials. The shape and structure of the vessels give information about the severity of the disease and the stage of the disease. Automatic and fast detection of vessels allows for a quick diagnosis of the disease and the treatment process to start shortly. ROI detection and vessel extraction methods for retinal image are mentioned in this study. It is shown that the Frangi filter used in image processing can be successfully used in detection and extraction of vessels.

  3. Joint Labeling Of Multiple Regions of Interest (Rois) By Enhanced Auto Context Models.

    Science.gov (United States)

    Kim, Minjeong; Wu, Guorong; Guo, Yanrong; Shen, Dinggang

    2015-04-01

    Accurate segmentation of a set of regions of interest (ROIs) in the brain images is a key step in many neuroscience studies. Due to the complexity of image patterns, many learning-based segmentation methods have been proposed, including auto context model (ACM) that can capture high-level contextual information for guiding segmentation. However, since current ACM can only handle one ROI at a time, neighboring ROIs have to be labeled separately with different ACMs that are trained independently without communicating each other. To address this, we enhance the current single-ROI learning ACM to multi-ROI learning ACM for joint labeling of multiple neighboring ROIs (called e ACM). First, we extend current independently-trained single-ROI ACMs to a set of jointly-trained cross-ROI ACMs, by simultaneous training of ACMs for all spatially-connected ROIs to let them to share their respective intermediate outputs for coordinated labeling of each image point. Then, the context features in each ACM can capture the cross-ROI dependence information from the outputs of other ACMs that are designed for neighboring ROIs. Second, we upgrade the output labeling map of each ACM with the multi-scale representation, thus both local and global context information can be effectively used to increase the robustness in characterizing geometric relationship among neighboring ROIs. Third, we integrate ACM into a multi-atlases segmentation paradigm, for encompassing high variations among subjects. Experiments on LONI LPBA40 dataset show much better performance by our e ACM, compared to the conventional ACM.

  4. Weltliche Einflüsse in der Notre-Dame-Musik? Überlegungen zu einer Klausel im Codex F

    Directory of Open Access Journals (Sweden)

    Büttner, Fred

    2002-12-01

    Full Text Available The unlimited validity of the rectilinear evolution that, according to Friedrich Ludwig, led from Notre Dame Clausula to Latin and thenceforth to French Motet was most recently questioned by Wolf Frobenius in his article "Zum genetischen Verhältnis zwischen Notre-Dame-Klauseln und ihren Motetten" (1987. Nevertheless, Frobenius does not thoroughly examine the pieces concerned, with hardly more far-reaching conclusions being attached to the priority claimed for many French Motets when comparing their concordances as Clausula and Latin Motet. With a setting of the choral melisma "ne" (Sm8 - already used by Ludwig in order to substantiate his estimation of the historical precedence of the Clausula - as an example, the point of view held by Frobenius is therefore once again subjected to critical scrutiny. Thus several traits can be established in the specifics of the Clausula that point to the field of secular music. Although this corroborates the considerations made by Frobenius, on the other hand such a result will open up new perspectives for further research into the School of Notre Dame.

    [de] Spätestens durch den Aufsatz „Zum genetischen Verhältnis zwischen Notre-Dame-Klauseln und ihren Motetten" von Wolf Frobenius (1987 wurde die uneingeschränkte Gültigkeit des geradlinigen Entwicklungsgangs, den Friedrich Ludwig von der Notre-Dame-Klausel über die lateinische bis zur franzosischen Motette zeichnete, in Frage gestellt. Jedoch bleibt Frobenius eine gründliche Untersuchung der betreffenden Stücke ebenso schuldig, wie auch an die behauptete Priorität vieler französischer Motetten gegenüber ihren Konkordanzen als Klausel und lateinische Motette kaum weiterreichende Schlußfolgerungen geknüpft werden. Anhand des „Ne"-Satzes Sm8, den bereits Ludwig exemplarisch hervorhob, um seine Auffassung von der Klausel als ältestem Stadium zu belegen, wird deshalb die Sichtweise von Frobenius noch einmal auf ihre Stichhaltigkeit

  5. The leap from ROI to SROI: Farther than expected?

    Science.gov (United States)

    Gargani, John

    2017-10-01

    Social return on investment (SROI) is a popular method for evaluating the impact that organizations have on society and the environment. It has its roots in finance, where return on investment (ROI) is used to evaluate investments. Over the past ten years, SROI has made the leap from a tool for building private wealth to one that advances the public good. Has it landed us in a better place? To answer the question, I describe the general approach to financial analysis, how it is applied to financial decisions, and how it has been adapted to evaluate impact. I then consider the strengths and weaknesses of SROI, and suggest how, by pushing beyond the constraints of financial analysis, it can give stakeholders voice and provide evidence of success from diverse perspectives. Along the way, I propose a conceptual model for value, a foundational concept in SROI that has been criticized by some as underdeveloped, and I include a technical appendix that identifies potential sources of statistical bias in SROI estimates. I conclude by acknowledging our growing need to incorporate efficiency as one of multiple success criteria and the role that SROI-properly implemented-can play. Copyright © 2017 Elsevier Ltd. All rights reserved.

  6. Estimating the Accuracy of the Return on Investment (ROI Performance Evaluations

    Directory of Open Access Journals (Sweden)

    Alexei Botchkarev

    2015-12-01

    Full Text Available Return on Investment (ROI is one of the most popular performance measurement and evaluation metrics. ROI analysis (when applied correctly is a powerful tool in comparing solutions and making informed decisions on the acquisitions of information systems. The purpose of this study is to provide a systematic research of the accuracy of the ROI evaluations in the context of information systems implementations. Measurements theory and error analysis, specifically propagation of uncertainties methods, were used to derive analytical expressions for ROI errors. Monte Carlo simulation methodology was used to design and deliver a quantitative experiment to model costs and returns estimating errors and calculate ROI accuracies. Spreadsheet simulation (Microsoft Excel spreadsheets enhanced with Visual Basic for Applications was used to implement Monte Carlo simulations. The main contribution of the study is that this is the first systematic effort to evaluate ROI accuracy. Analytical expressions have been derived for estimating errors of the ROI evaluations. Results of the Monte Carlo simulation will help practitioners in making informed decisions based on explicitly stated factors influencing the ROI uncertainties.

  7. A direct ROI quantification method for inherent PVE correction: accuracy assessment in striatal SPECT measurements

    Energy Technology Data Exchange (ETDEWEB)

    Vanzi, Eleonora; De Cristofaro, Maria T.; Sotgia, Barbara; Mascalchi, Mario; Formiconi, Andreas R. [University of Florence, Clinical Pathophysiology, Florence (Italy); Ramat, Silvia [University of Florence, Neurological and Psychiatric Sciences, Florence (Italy)

    2007-09-15

    The clinical potential of striatal imaging with dopamine transporter (DAT) SPECT tracers is hampered by the limited capability to recover activity concentration ratios due to partial volume effects (PVE). We evaluated the accuracy of a least squares method that allows retrieval of activity in regions of interest directly from projections (LS-ROI). An Alderson striatal phantom was filled with striatal to background ratios of 6:1, 9:1 and 28:1; the striatal and background ROIs were drawn on a coregistered X-ray CT of the phantom. The activity ratios of these ROIs were derived both with the LS-ROI method and with conventional SPECT EM reconstruction (EM-SPECT). Moreover, the two methods were compared in seven patients with motor symptoms who were examined with N-3-fluoropropyl-2-{beta}-carboxymethoxy-3-{beta}-(4-iodophenyl) (FP-CIT) SPECT, calculating the binding potential (BP). In the phantom study, the activity ratios obtained with EM-SPECT were 3.5, 5.3 and 17.0, respectively, whereas the LS-ROI method resulted in ratios of 6.2, 9.0 and 27.3, respectively. With the LS-ROI method, the BP in the seven patients was approximately 60% higher than with EM-SPECT; a linear correlation between the LS-ROI and the EM estimates was found (r = 0.98, p = 0.03). The LS-ROI PVE correction capability is mainly due to the fact that the ill-conditioning of the LS-ROI approach is lower than that of the EM-SPECT one. The LS-ROI seems to be feasible and accurate in the examination of the dopaminergic system. This approach can be fruitful in monitoring of disease progression and in clinical trials of dopaminergic drugs. (orig.)

  8. The evaluation of the automatic setting of ROI to SPECT measuring cerebral blood flow

    International Nuclear Information System (INIS)

    Mizuno, Hiroshi; Takahashi, Masaaki; Yoshioka, Katsunori

    2007-01-01

    It has been pointed out that the manual settings of region of interest (ROI) to the single-photon-emission-computed-tomography (SPECT) slice lacked objectivity when the fixed quantity value of regional cerebral blood flow (rCBF) was measured previously. Therefore, we jointly developed software Brain ROI'' with Daiichi Radioisotope Laboratories, Ltd. (DRL) that normalized an individual brain to a standard brain template by using Statistical Parametric Mapping 2 (SPM 2) of easy Z-score Imaging System ver. 3.0 (eZIS Ver. 3.0), and, ROI template was set to a specific slice. In this paper, we evaluated the accuracy of this software with ROI template that we made the useful size of the shape, in some clinical samples. As a result, the method of the automatic setting of ROI was the objectively. However, we thought that we should use the shape of ROI template without an influence of Brain atrophy. Moreover, we should see Normalizing individual brain and confirm the accuracy of normalization. When failing in normalization, we should partially correct ROI or set all by the manual operation of the operator. However, it was thought that this software was useful if the tendency was understood because the failure example was few. (author)

  9. Cristine de Pizan e le emozioni per la Cità des Dames

    Directory of Open Access Journals (Sweden)

    Angela Giallongo

    2011-06-01

    Full Text Available L’interesse storico per le emozioni spinge ad interrogarsi sul loro ruolo nelle utopie femminili alla fine del medioevo. Una fonte centrale su questo tema è l’opera illustrata la Cité des Dames (1405 di C. de Pizan (1365-1430. Gli studi di B.H. Rosenwein, W. Reddie e K.Oatley forniscono categorie interpretative psico-sociali (comunità emotive e regime emotivo utili per connettere l’idea di utopia, valori emotivi e rapporti interpersonali fra i sessi. La problematicizzazione, suggerita da Rosenwein, della comunità immaginata come comunità emotiva aiuta a identificare i modi di sentire rifiutati e quelli privilegiati per l’espressione del senso di sé e per la costruzione della città ideale, offerta alle donne di tutte le classi sociali.In conclusione, l’analisi qualitativa dell’opera della de Pizan focalizza l’uso formativo delle immagini mitiche, l’esperienza dell’autrice, contestualizzata nel periodo, e i significati culturali attribuiti alle “emozioni”.

  10. An ROI multi-resolution compression method for 3D-HEVC

    Science.gov (United States)

    Ti, Chunli; Guan, Yudong; Xu, Guodong; Teng, Yidan; Miao, Xinyuan

    2017-09-01

    3D High Efficiency Video Coding (3D-HEVC) provides a significant potential on increasing the compression ratio of multi-view RGB-D videos. However, the bit rate still rises dramatically with the improvement of the video resolution, which will bring challenges to the transmission network, especially the mobile network. This paper propose an ROI multi-resolution compression method for 3D-HEVC to better preserve the information in ROI on condition of limited bandwidth. This is realized primarily through ROI extraction and compression multi-resolution preprocessed video as alternative data according to the network conditions. At first, the semantic contours are detected by the modified structured forests to restrain the color textures inside objects. The ROI is then determined utilizing the contour neighborhood along with the face region and foreground area of the scene. Secondly, the RGB-D videos are divided into slices and compressed via 3D-HEVC under different resolutions for selection by the audiences and applications. Afterwards, the reconstructed low-resolution videos from 3D-HEVC encoder are directly up-sampled via Laplace transformation and used to replace the non-ROI areas of the high-resolution videos. Finally, the ROI multi-resolution compressed slices are obtained by compressing the ROI preprocessed videos with 3D-HEVC. The temporal and special details of non-ROI are reduced in the low-resolution videos, so the ROI will be better preserved by the encoder automatically. Experiments indicate that the proposed method can keep the key high-frequency information with subjective significance while the bit rate is reduced.

  11. Data from the Roi Removal Project, West Hawaii, 2010-2011 (NODC Accession 0082197

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In situ observations of the introduced predatory grouper roi (Cephalopholis argus) were taken within the coral reef ecosystem of Puako, northwest side of the Island...

  12. Low-Cost Small Satellite Atmospheric Rotating Solar Occultation Imager (ROI)

    Data.gov (United States)

    National Aeronautics and Space Administration — Utilizing a unique, new occultation technique involving imaging, the ROI concept will meet or exceed the quality of SAGE measurements at a small fraction of the...

  13. ROI en medios sociales: campañas de marketing en bibliotecas

    OpenAIRE

    González-Fernández-Villavicencio, Nieves

    2015-01-01

    Social media marketing must be a part of a digital marketing plan. Although marketing traditionally has been associated with obtaining an economic ROI (return on investment), it also can be measured in terms of social ROI (return on influence, return on relationships, reputation, branding, etc.). This study addresses the use of digital marketing campaigns by libraries for social profitability. Concepts related to digital marketing and social media marketing, and the way different types of org...

  14. The Criticality of Connecting People to Financial Results ‒ an ROI Calculation Model for Romanian FSOs

    Directory of Open Access Journals (Sweden)

    Daniela Niculescu

    2016-02-01

    Full Text Available Organisational culture and employee engagement have been the focus of recent broad-based research efforts. Adding this concern to the revealed importance of performance indicators on human capital, and that their use is getting momentum, in order to attach financial values to knowledge management assets, it becomes more and more critical to measure human capital value. Key for Romanian FSO’s managers becomes to consider that both human and financial values have a focus on adding value in every process and function in the organisation, and to perpetuate organisational profitability by the corporate culture, on the one hand, where culture is a powerful factor that helps a company to engage, on the other hand, talented people. There is a substantial concern on using ROI on Learning and Development programmes, but whilst this is still declared, Romanian FSOs do not yet have a consistent method to measure it. This study is showing the criticality of connecting people to financial results and data analysis suggests that ROI calculation has a positive impact on creating and fostering a powerful organisational culture and that employees’ awareness of ROI values within their organisation has a powerful effect on their sense of engagement. Our findings have a more practical implication for the analysed industry by shaping a formal ROI measurement mechanisms blueprint, an ROI calculation model for the Romanian FSOs, in the form of a mechanism that could be employed when considering the design of an ROI Methodology for Romanian FSOs.

  15. Identifying the factors that affect the job satisfaction of early career Notre Dame graduate physiotherapists.

    Science.gov (United States)

    Bacopanos, Eleni; Edgar, Susan

    2016-11-01

    Objective Previous studies have highlighted the short career intentions and high attrition rates of physiotherapists from the profession. The aim of the present study was to examine the job satisfaction and attrition rates of early career physiotherapists graduating from one Western Australian university. Methods A self-administered online survey was conducted of 157 Notre Dame physiotherapy graduates (2006-2012), incorporating a job satisfaction rating scale. Results Results showed that lowered job satisfaction was related to working in the cardiorespiratory area of physiotherapy and working in multiple jobs since graduation. The majority of graduates did not predict a long-term career in physiotherapy, highlighting a lack of career progression and limited scope of practice as influential factors. Conclusions Job satisfaction in early career physiotherapists varies across different clinical areas of practice related to several factors, including challenge and flexibility. New roles in the profession, including extended scope roles, may impact on the future job satisfaction of physiotherapists. Further studies are needed to explore the effect of these roles on workforce trends, including attrition rates. What is known about the topic? Physiotherapists predict careers of 10 years or less on entry into the profession. No previous studies have explored the individual factors influencing job satisfaction in early career physiotherapists across different clinical settings. What does this paper add? This study highlights specific factors influencing the job satisfaction of early career physiotherapists, including clinical area of practice. Physiotherapists working in the cardiorespiratory area were less satisfied, as were physiotherapists undertaking multiple positions since graduation. What are the implications for practitioners? This study informs employers and workforce planners on the factors affecting job satisfaction in early career physiotherapists. In addition

  16. The use of convent archival records in medical research: the School Sisters of Notre Dame archives and the nun study.

    Science.gov (United States)

    Patzwald, Gari-Anne; Wildt, Sister Carol Marie

    2004-01-01

    The School Sisters of Notre Dame (SSND) archives program in a cooperative system for the arrangement and preservation of the records of the SSND provinces in North America, including records of individual sisters. Archival records include autobiographies, school and college transcripts, employment histories, and family socioeconomic data. The Nun Study, a longitudinal study of Alzheimer's disease and aging in 678 SSND sisters, compares data extracted from these records with data on late-life cognitive and physical function and postmortem brain neuropathology to explore early life factor that may affect late-life cognitive function and longevity.

  17. Least-squares dual characterization for ROI assessment in emission tomography

    International Nuclear Information System (INIS)

    Ben Bouallègue, F; Mariano-Goulart, D; Crouzet, J F; Dubois, A; Buvat, I

    2013-01-01

    Our aim is to describe an original method for estimating the statistical properties of regions of interest (ROIs) in emission tomography. Drawn upon the works of Louis on the approximate inverse, we propose a dual formulation of the ROI estimation problem to derive the ROI activity and variance directly from the measured data without any image reconstruction. The method requires the definition of an ROI characteristic function that can be extracted from a co-registered morphological image. This characteristic function can be smoothed to optimize the resolution-variance tradeoff. An iterative procedure is detailed for the solution of the dual problem in the least-squares sense (least-squares dual (LSD) characterization), and a linear extrapolation scheme is described to compensate for sampling partial volume effect and reduce the estimation bias (LSD-ex). LSD and LSD-ex are compared with classical ROI estimation using pixel summation after image reconstruction and with Huesman's method. For this comparison, we used Monte Carlo simulations (GATE simulation tool) of 2D PET data of a Hoffman brain phantom containing three small uniform high-contrast ROIs and a large non-uniform low-contrast ROI. Our results show that the performances of LSD characterization are at least as good as those of the classical methods in terms of root mean square (RMS) error. For the three small tumor regions, LSD-ex allows a reduction in the estimation bias by up to 14%, resulting in a reduction in the RMS error of up to 8.5%, compared with the optimal classical estimation. For the large non-specific region, LSD using appropriate smoothing could intuitively and efficiently handle the resolution-variance tradeoff. (paper)

  18. Least-squares dual characterization for ROI assessment in emission tomography

    Science.gov (United States)

    Ben Bouallègue, F.; Crouzet, J. F.; Dubois, A.; Buvat, I.; Mariano-Goulart, D.

    2013-06-01

    Our aim is to describe an original method for estimating the statistical properties of regions of interest (ROIs) in emission tomography. Drawn upon the works of Louis on the approximate inverse, we propose a dual formulation of the ROI estimation problem to derive the ROI activity and variance directly from the measured data without any image reconstruction. The method requires the definition of an ROI characteristic function that can be extracted from a co-registered morphological image. This characteristic function can be smoothed to optimize the resolution-variance tradeoff. An iterative procedure is detailed for the solution of the dual problem in the least-squares sense (least-squares dual (LSD) characterization), and a linear extrapolation scheme is described to compensate for sampling partial volume effect and reduce the estimation bias (LSD-ex). LSD and LSD-ex are compared with classical ROI estimation using pixel summation after image reconstruction and with Huesman's method. For this comparison, we used Monte Carlo simulations (GATE simulation tool) of 2D PET data of a Hoffman brain phantom containing three small uniform high-contrast ROIs and a large non-uniform low-contrast ROI. Our results show that the performances of LSD characterization are at least as good as those of the classical methods in terms of root mean square (RMS) error. For the three small tumor regions, LSD-ex allows a reduction in the estimation bias by up to 14%, resulting in a reduction in the RMS error of up to 8.5%, compared with the optimal classical estimation. For the large non-specific region, LSD using appropriate smoothing could intuitively and efficiently handle the resolution-variance tradeoff.

  19. Medical Ultrasound Video Coding with H.265/HEVC Based on ROI Extraction.

    Science.gov (United States)

    Wu, Yueying; Liu, Pengyu; Gao, Yuan; Jia, Kebin

    2016-01-01

    High-efficiency video compression technology is of primary importance to the storage and transmission of digital medical video in modern medical communication systems. To further improve the compression performance of medical ultrasound video, two innovative technologies based on diagnostic region-of-interest (ROI) extraction using the high efficiency video coding (H.265/HEVC) standard are presented in this paper. First, an effective ROI extraction algorithm based on image textural features is proposed to strengthen the applicability of ROI detection results in the H.265/HEVC quad-tree coding structure. Second, a hierarchical coding method based on transform coefficient adjustment and a quantization parameter (QP) selection process is designed to implement the otherness encoding for ROIs and non-ROIs. Experimental results demonstrate that the proposed optimization strategy significantly improves the coding performance by achieving a BD-BR reduction of 13.52% and a BD-PSNR gain of 1.16 dB on average compared to H.265/HEVC (HM15.0). The proposed medical video coding algorithm is expected to satisfy low bit-rate compression requirements for modern medical communication systems.

  20. Medical Ultrasound Video Coding with H.265/HEVC Based on ROI Extraction.

    Directory of Open Access Journals (Sweden)

    Yueying Wu

    Full Text Available High-efficiency video compression technology is of primary importance to the storage and transmission of digital medical video in modern medical communication systems. To further improve the compression performance of medical ultrasound video, two innovative technologies based on diagnostic region-of-interest (ROI extraction using the high efficiency video coding (H.265/HEVC standard are presented in this paper. First, an effective ROI extraction algorithm based on image textural features is proposed to strengthen the applicability of ROI detection results in the H.265/HEVC quad-tree coding structure. Second, a hierarchical coding method based on transform coefficient adjustment and a quantization parameter (QP selection process is designed to implement the otherness encoding for ROIs and non-ROIs. Experimental results demonstrate that the proposed optimization strategy significantly improves the coding performance by achieving a BD-BR reduction of 13.52% and a BD-PSNR gain of 1.16 dB on average compared to H.265/HEVC (HM15.0. The proposed medical video coding algorithm is expected to satisfy low bit-rate compression requirements for modern medical communication systems.

  1. Return on investment. What is ROI and how to use it.

    Science.gov (United States)

    Cotter, Steve

    2014-08-01

    Formulated and interpreted correctly, ROI tools and techniques can be very useful for EMS managers when evaluating various competing projects and initiatives within the organization. More so, decision makers and elected bodies responsible for approving the financial support of these initiatives are demanding that they be presented with a more complete picture of the return for any dollars allocated under ever-tightening financial considerations that all organizations face today. ROI can be a powerful tool in supporting your organization when competing for limited dollars.

  2. The hands-on project office guaranteeing ROI and on-time delivery

    CERN Document Server

    Kesner, Richard M

    2003-01-01

    THE THREE PILLARS OF IT DELIVERY - PROBLEM RESOLUTION, SERVICE REQUESTS, AND PROJECTSIntroduction The Business Context The Internal Economy for Investing in IT Services and ProjectsThe Three Pillars of IT Delivery Managing Service DeliveryManaging Project Commitments IT Metrics and Reporting Tools THE PROJECT MANAGEMENT OFFICE BUSINESS MODELIntroduction: Revisiting the IT Organization IT Service and Project Delivery RolesThe Role of the Project Management Office: Measuring its ROI The PMO Value Proposition: An Initial ROI Estimate ALIGNMENT AND PLANNING - DOING THE RIGHT THINGS Introduction Ge

  3. Education for Sustainable Development at Notre Dame University--Louaize: Environmental Science Curriculum--A Pre-Phase to the Rucas Project on Education for Sustainable Development

    Science.gov (United States)

    Khalaf-Kairouz, Layla

    2012-01-01

    The Faculty of Natural and Applied Sciences at Notre Dame University--Louaize, conscious to the need of experts in the emerging field of sustainability and to the role that an educational institution plays for the service of the community, introduced into the university curricula a major in environmental science. This paper will present the…

  4. Visibility Analysis of the Oriental Pearl Based on Digital Landscape Simulation – View from East Daming Road of Shanghai

    Directory of Open Access Journals (Sweden)

    S. Liu

    2015-08-01

    Full Text Available As the demand for visual quality of environment increases, visual analysis therefore plays progressively important role in current urban landscape construction and management. Guided by the City Image theory, this paper presents a covered scene index “X” to describe the visibility of the target scene, and formulates a digital analysis model based on ArcGIS and 3D simulation. This method is applied to the viewpoint analysis from the East Daming Road of the North Bund to the Oriental Pearl in Shanghai and optimized solutions are proposed according to the results. It turns out that this simple and objective technique can serve as a good tool for the reference of urban landscape planning and management.

  5. Construction and simulation of a multi-reflection time-of-flight mass spectrometer at the University of Notre Dame

    Energy Technology Data Exchange (ETDEWEB)

    Schultz, B.E., E-mail: bschult4@nd.edu; Kelly, J.M.; Nicoloff, C.; Long, J.; Ryan, S.; Brodeur, M.

    2016-06-01

    One of the most significant problems in the production of rare isotopes is the simultaneous production of contaminants, often time isobaric. Thus, a high-resolution beam purification method is required which needs to be compatible with both the low yield and short half-life of the desired radionuclide. A multi-reflection time-of-flight mass spectrometer meets all these criteria, in addition to boasting a smaller footprint relative to traditional separator dipole magnets. Such a device is currently under construction at the University of Notre Dame and is intended to be coupled to the IG-ISOL source of the planned cyclotron facility. The motivation and conceptual design are presented, as well as the status of simulations to determine the feasibility of using a Bradbury–Nielsen gate for bunching ion beams during initial system testing.

  6. SU-F-J-19: Robust Region-Of-Interest (ROI) for Consistent Registration On Deteriorated Surface Images

    Energy Technology Data Exchange (ETDEWEB)

    Kang, H; Malin, M; Chmura, S; Hasan, Y; Al-Hallaq, H [The Department of Radiation and Cellular Oncology, The University of Chicago Medicine, Chicago, IL (United States)

    2016-06-15

    Purpose: For African-American patients receiving breast radiotherapy with a bolus, skin darkening can affect the surface visualization when using optical imaging for daily positioning and gating at deep-inspiration breath holds (DIBH). Our goal is to identify a region-of-interest (ROI) that is robust against deteriorating surface image quality due to skin darkening. Methods: We study four patients whose post-mastectomy surfaces are imaged daily with AlignRT (VisionRT, UK) for DIBH radiotherapy and whose surface image quality is degraded toward the end of treatment. To simulate the effects of skin darkening, surfaces from the first ten fractions of each patient are systematically degraded by 25–35%, 40–50% and 65–75% of the total area of the clinically used ROI-ipsilateral-chestwall. The degraded surfaces are registered to the reference surface in six degrees-of-freedom. To identify a robust ROI, three additional reference ROIsROI-chest+abdomen, ROI-bilateral-chest and ROI-extended-ipsilateral-chestwall are created and registered to the degraded surfaces. Differences in registration using these ROIs are compared to that using ROI-ipsilateral-chestwall. Results: For three patients, the deviations in the registrations to ROI-ipsilateral-chestwall are > 2.0, 3.1 and 7.9mm on average for 25–35%, 40–50% and 65–75% degraded surfaces, respectively. Rotational deviations reach 11.1° in pitch. For the last patient, registration is consistent to within 2.6mm even on the 65–75% degraded surfaces, possibly because the surface topography has more distinct features. For ROI-bilateral-chest and ROI-extended-ipsilateral-chest registrations deviate in a similar pattern. However, registration on ROI-chest+abdomen is robust to deteriorating image qualities to within 4.2mm for all four patients. Conclusion: Registration deviations using ROI-ipsilateral-chestwall can reach 9.8mm on the 40–50% degraded surfaces. Caution is required when using AlignRT for patients

  7. Protective effect of the daming capsule on impaired baroreflexes in STZ-induced diabetic rats with hyperlipoidemia

    Directory of Open Access Journals (Sweden)

    Lu Guan-Yi

    2010-12-01

    Full Text Available Abstract Background The Daming capsule (DMC is a traditional Chinese medicine used to treat hyperlipoidemia. Both clinic trials and studies on animal models have demonstrated that DMC is beneficial against diabetic symptoms. Impairment of the baroreflex can cause life-threatening arrhythmias and sudden cardiac death in patients with diabetes mellitus (DM. This study was designed to elucidate the effects of DMC on baroreflexes in streptozocin (STZ-induced diabetic rats with hyperlipoidemia. Methods Wistar rats were randomly divided into three groups: untreated controls, rats pretreated STZ and high lipids (a diabetes model or DM rats, and DM rats treated with DMC. The baroreflex sensitivity was examined during intravenous injection of phenylephrine (PE or sodium nitroprusside (SNP and quantified by the change in heart rate over the change in mean arterial blood pressure (ΔHR/ΔMABP. Morphological remodeling of baroreceptors was analyzed by transmission electron microscopy (TEM. The mRNA levels and expression of GluR2 and a GABAA receptor subunit were measured by quantitative RT-PCR and Western blotting. Results Compared to untreated DM rats, DMC significantly elevated the ratio of ΔHR/ΔMABP by enhancing the compensatory reduction in HR (-ΔHR in response to PE-induced hypertension (+ΔMABP (P P P A receptor expression. Conclusion The Daming capsule partially reversed the parasympathetic baroreflex impairment observed in STZ-induced diabetic rats with hyperlipoidemia. Treatment with DMC also prevented the degeneration of neurons and myelinated axons in the brain stem NAm and reversed the down-regulation of GluR2 mRNA. Rescue of NAm function may contribute to the medicinal properties of DMC in diabetic rats.

  8. Valet av hög revisionskvalité : Vilka faktorer beskriver valet?

    OpenAIRE

    Nordlöf, Magnus; Ohlsson, Anders

    2007-01-01

    This paper analyzes the auditor choices for a sample of 300 predominantly small Swedish firms, all located in Umeå. Our hypothesis was based on the complexity of a firm, the need of external financing, leverage, and the need of extra consultance from the auditfirm. Our definition of auditor quality is based on prior studies, and is frequently used by authors in this area. The assumption is based on that the auditor quality increases with the size of the auditfirm and the degree of the auditor...

  9. Students, teachers and technicians are installing a cosmic ray detector in the CMS visitor gallery. The detector was designed and built in the framework of the US Quarknet project under the supervision of physicists from the Notre Dame University (USA)

    CERN Document Server

    Claudia Marcelloni

    2007-01-01

    Students, teachers and technicians are installing a cosmic ray detector in the CMS visitor gallery. The detector was designed and built in the framework of the US Quarknet project under the supervision of physicists from the Notre Dame University (USA)

  10. Multi-ROI Association and Tracking With Belief Functions: Application to Traffic Sign Recognition

    OpenAIRE

    Boumediene , Mohammed; Lauffenburger , Jean-Philippe; Daniel , Jérémie; Cudel , Christophe; Ouamri , Abdelaziz

    2014-01-01

    International audience; —This paper presents an object tracking algorithm using belief functions applied to vision-based traffic sign recognition systems. This algorithm tracks detected sign candidates over time in order to reduce false positives due to data fusion formalization. In the first stage, regions of interest (ROIs) are detected and combined using the transferable belief model semantics. In the second stage, the local pignistic probability algorithm generates the associations maximi...

  11. Diffusion-weighted magnetic resonance imaging in the characterization of testicular germ cell neoplasms: Effect of ROI methods on apparent diffusion coefficient values and interobserver variability

    Energy Technology Data Exchange (ETDEWEB)

    Tsili, Athina C., E-mail: a_tsili@yahoo.gr [Department of Clinical Radiology, Medical School, University of Ioannina, University Campus, 45110, Ioannina (Greece); Ntorkou, Alexandra, E-mail: alexdorkou@hotmail.com [Department of Clinical Radiology, Medical School, University of Ioannina, University Campus, 45110, Ioannina (Greece); Astrakas, Loukas, E-mail: astrakas@uoi.gr [Department of Medical Physics, Medical School, University of Ioannina, University Campus, 45110, Ioannina (Greece); Xydis, Vasilis, E-mail: vxydis@cc.uoi.gr [Department of Clinical Radiology, Medical School, University of Ioannina, University Campus, 45110, Ioannina (Greece); Tsampalas, Stavros, E-mail: stamp@gmail.com [Department of Urology, Medical School, University of Ioannina, University Campus, 45110, Ioannina (Greece); Sofikitis, Nikolaos, E-mail: akrosnin@hotmail.com [Department of Urology, Medical School, University of Ioannina, University Campus, 45110, Ioannina (Greece); Argyropoulou, Maria I., E-mail: margyrop@cc.uoi.gr [Department of Clinical Radiology, Medical School, University of Ioannina, University Campus, 45110, Ioannina (Greece)

    2017-04-15

    Highlights: • Seminomas have lower mean ADC compared to NSGCNs. • Round ROI is accurate in characterizing TGCNS. • ROI shape has no significant effect on interobserver variability. - Abstract: Introduction: To evaluate the difference in apparent diffusion coefficient (ADC) measurements at diffusion-weighted (DW) magnetic resonance imaging of differently shaped regions-of-interest (ROIs) in testicular germ cell neoplasms (TGCNS), the diagnostic ability of differently shaped ROIs in differentiating seminomas from nonseminomatous germ cell neoplasms (NSGCNs) and the interobserver variability. Materials and methods: Thirty-three TGCNs were retrospectively evaluated. Patients underwent MR examinations, including DWI on a 1.5-T MR system. Two observers measured mean tumor ADCs using four distinct ROI methods: round, square, freehand and multiple small, round ROIs. The interclass correlation coefficient was analyzed to assess interobserver variability. Statistical analysis was used to compare mean ADC measurements among observers, methods and histologic types. Results: All ROI methods showed excellent interobserver agreement, with excellent correlation (P < 0.001). Multiple, small ROIs provided the lower mean ADC in TGCNs. Seminomas had lower mean ADC compared to NSGCNs for each ROI method (P < 0.001). Round ROI proved the most accurate method in characterizing TGCNS. Conclusion: Interobserver variability in ADC measurement is excellent, irrespective of the ROI shape. Multiple, small round ROIs and round ROI proved the more accurate methods for ADC measurement in the characterization of TGCNs and in the differentiation between seminomas and NSGCNs, respectively.

  12. Oil palm fresh fruit bunch ripeness classification based on rule- based expert system of ROI image processing technique results

    International Nuclear Information System (INIS)

    Alfatni, M S M; Shariff, A R M; Marhaban, M H; Shafie, S B; Saaed, O M B; Abdullah, M Z; BAmiruddin, M D

    2014-01-01

    There is a processing need for a fast, easy and accurate classification system for oil palm fruit ripeness. Such a system will be invaluable to farmers and plantation managers who need to sell their oil palm fresh fruit bunch (FFB) for the mill as this will avoid disputes. In this paper,a new approach was developed under the name of expert rules-based systembased on the image processing techniques results of thethree different oil palm FFB region of interests (ROIs), namely; ROI1 (300x300 pixels), ROI2 (50x50 pixels) and ROI3 (100x100 pixels). The results show that the best rule-based ROIs for statistical colour feature extraction with k-nearest neighbors (KNN) classifier at 94% were chosen as well as the ROIs that indicated results higher than the rule-based outcome, such as the ROIs of statistical colour feature extraction with artificial neural network (ANN) classifier at 94%, were selected for further FFB ripeness inspection system

  13. Application of a semi-automatic ROI setting system for brain PET images to animal PET studies

    International Nuclear Information System (INIS)

    Kuge, Yuji; Akai, Nobuo; Tamura, Koji

    1998-01-01

    ProASSIST, a semi-automatic ROI (region of interest) setting system for human brain PET images, has been modified for use with the canine brain, and the performance of the obtained system was evaluated by comparing the operational simplicity for ROI setting and the consistency of ROI values obtained with those by a conventional manual procedure. Namely, we created segment maps for the canine brain by making reference to the coronal section atlas of the canine brain by Lim et al., and incorporated them into the ProASSIST system. For the performance test, CBF (cerebral blood flow) and CMRglc (cerebral metabolic rate in glucose) images in dogs with or without focal cerebral ischemia were used. In ProASSIST, brain contours were defined semiautomatically. In the ROI analysis of the test image, manual modification of the contour was necessary in half cases examined (8/16). However, the operation was rather simple so that the operation time per one brain section was significantly shorter than that in the manual operation. The ROI values determined by the system were comparable with those by the manual procedure, confirming the applicability of the system to these animal studies. The use of the system like the present one would also merit the more objective data acquisition for the quantitative ROI analysis, because no manual procedure except for some specifications of the anatomical features is required for ROI setting. (author)

  14. L’église Notre-Dame-des-Pauvres à Issy-les-Moulineaux (Hauts-de-Seine

    Directory of Open Access Journals (Sweden)

    Claire Vignes-Dumas

    2009-11-01

    Full Text Available L’église Notre-Dame des Pauvres d’Issy-les-Moulineaux est l’une des toutes premières églises construites dans la proche banlieue parisienne après les bombardements de la seconde guerre mondiale. Datée de 1954-1955, elle est l’œuvre du tout jeune architecte Jean-Blaise Lombard associé à l’architecte Henri Duverdier. Destinée à une population ouvrière très défavorisée et réalisée avec un très petit budget, elle attire cependant l’attention de la critique par la liberté de son architecture caractérisée par l’ampleur du sanctuaire et l’importance attribuée aux verrières réalisées par le peintre Léon Zack. Les dispositions liturgiques d’avant-garde ainsi que l’unité de son décor dominé par l’art abstrait - où interviennent aussi le maître verrier Jean Lesquibe, les sculpteurs Maxime Adam-Tessier et Irène Zack -, en font un édifice clé de la reconstruction en Île-de-France.Issy-les-Moulineaux’s church, Notre Dame des Pauvres, « Our Lady of Poor People », is one of the very first churches built in close Parisian suburbs after Second World War bombings. Dated from 1954-1955, it is a very young architect’s work, Jean-Blaise Lombard, associated with architect Henri Duverdier. Meant to serve a very disadvantaged working class and made with a very small budget, it attracts the critics’ attention thanks to the freedom of its architecture, characterized by the large size of the shrine as well as by the importance ascribed to stained glass walls realized by painter Leon Zack. The avant-garde liturgical lay-out, together with the décor unity dominated by abstract art - where glassmaker Master Jean Lesquive and sculptors Maxime Adam-Tessier and Irène Zack intervene - made this church a key edifice in Île-de-France post-war rebuilding period.

  15. Feeding biology of the introduced fish roi, and its impact on Hawaiian reef fishes, January 2004 and January 2005, (NODC Accession 0002172)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Feeding biology of the introduced fish roi (Cephalopholis argus), and its impact on Hawaiian reef fishes and fisheries between January 2004 and January 2005. Roi...

  16. Notre-Dame des Fleurs et Miracle de la rose, de Jean Genet. L’écriture mise au secret

    Directory of Open Access Journals (Sweden)

    Pascaline Hamon

    2011-12-01

    Full Text Available Notre-Dame des Fleurs et Miracle de la Rose sont les deux romans que Jean Genet a composés durant des périodes d’incarcération. La fiction se veut alors non seulement un remède à la solitude carcérale et à la marginalisation de son auteur, mais également un lieu de dévoilement des pratiques d’écriture propres à l’univers carcéral. Le roman tout entier se trouve dès lors habité d’une tension entre la liberté créatrice, qui fait la part belle aux provocations de l’auteur et à l’expression de ses fantasmes et un enfermement contraignant, qui pèse comme une menace sur la possibilité d’écrire.Our Lady of the Flowers and Miracle of the Rose were written during Genet’s time of imprisonment. The fictional narrative operates not only as a remedy to the experience of solitude and marginalization, but also brings the practice of prison writings into focus. The novels are haunted by a tension between a creative freedom which can launch provocations and phantasms, and the constraint of imprisonment, which threatens the very possibility of writing.

  17. Forgery at the Snite Museum of Art? Improving AMS Radiocarbon Dating at the University of Notre Dame

    Science.gov (United States)

    Troyer, Laura; Bagwell, Connor; Anderson, Tyler; Clark, Adam; Nelson, Austin; Skulski, Michael; Collon, Philippe

    2017-09-01

    The Snite Museum of Art recently obtained several donations of artifacts. Five of the pieces lack sufficient background information to prove authenticity and require further analysis to positively determine the artwork's age. One method to determine the artwork's age is radiocarbon dating via Accelerator Mass Spectrometry (AMS) performed at the University of Notre Dame's Nuclear Science Laboratory. Samples are prepared by combustion of a small amount of material and subsequent reduction to carbon into an iron powder matrix (graphitization). The graphitization procedure affects the maximum measurement rate, and a poor graphitization can be detrimental to the AMS measurement of the sample. Previous graphitization procedures resulted in a particle current too low or inconsistent to optimize AMS measurements. Thus, there was a desire to design and refine the graphitization system. The finalized process yielded physically darker samples and increased sample currents by two orders of magnitude. Additionally, the first testing of the samples was successful, yet analysis of the dates proved inconclusive. AMS measurements will be performed again to obtain better sampling statistics in the hopes of narrowing the reported date ranges. NSF and JINA-CEE.

  18. Effect of removal of hesperis matronalis (Dame's rocket) on species cover of forest understory vegetation in NW indiana

    Science.gov (United States)

    Pavlovic, N.B.; Leicht-Young, S. A.; Frohnapple, K.J.; Grundel, R.

    2009-01-01

    Exotic invasive plant species differ in their effects on indigenous vegetation as evidenced by research evaluating community response to their removal. We used a removal approach to quantify the response of a mesic woodland to the removal versus retention of an invasive plant, Hesperis matronalis (dame's rocket) from paired treatment plots over 3 y. Cover of H. matronalis did not differ between control and treatment plots prior to removal, declined in the removal plots and remained significantly lower in cover compared to the control plots. Removal did not significantly affect species richness and species diversity (evenness, Shannon and Simpson) at the plot scale, but did result in increased species richness overall in the removal plots in the last sampling year when compared to control plots. Non-metric multidimensional scaling ordination analysis indicated a significant compositional change in the spring plant composition of plots over the 3 y, reflecting an increase in exotic woody species. Exotic woody plants, especially Rosa multiflora and Euonymus alatus, increased in cover in response to H. matronalis removal. In the 3 y, neither native nor exotic forbs, nor native woody plants responded to the removal of H. matronalis in a statistically significant manner. The increasing cover of woody invasive plants in response to the removal of H. matronalis has important management implications for restoration of degraded communities.

  19. Influence of ROI selection on Resting Functional Connectivity: An Individualized Approach for Resting fMRI Analysis

    Directory of Open Access Journals (Sweden)

    William Seunghyun Sohn

    2015-08-01

    Full Text Available The differences in how our brain is connected are often thought to reflect the differences in our individual personalities and cognitive abilities. Individual differences in brain connectivity has long been recognized in the neuroscience community however it has yet to manifest itself in the methodology of resting state analysis. This is evident as previous studies use the same region of interest (ROIs for all subjects. In this paper we demonstrate that the use of ROIs which are standardized across individuals leads to inaccurate calculations of functional connectivity. We also show that this problem can be addressed by taking an individualized approach by using subject-specific ROIs. Finally we show that ROI selection can affect the way we interpret our data by showing different changes in functional connectivity with ageing.

  20. Cephalopholis argus fish census and assemblage data from the West Hawaii Roi Removal Project 2010-2012 (NODC Accession 0099263)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This project examined the results of the field manipulative experiment that has been set up to test the ecological effects of introduced roi on reef fish...

  1. Examining Brain Morphometry Associated with Self-Esteem in Young Adults Using Multilevel-ROI-Features-Based Classification Method

    Directory of Open Access Journals (Sweden)

    Bo Peng

    2017-05-01

    Full Text Available Purpose: This study is to exam self-esteem related brain morphometry on brain magnetic resonance (MR images using multilevel-features-based classification method.Method: The multilevel region of interest (ROI features consist of two types of features: (i ROI features, which include gray matter volume, white matter volume, cerebrospinal fluid volume, cortical thickness, and cortical surface area, and (ii similarity features, which are based on similarity calculation of cortical thickness between ROIs. For each feature type, a hybrid feature selection method, comprising of filter-based and wrapper-based algorithms, is used to select the most discriminating features. ROI features and similarity features are integrated by using multi-kernel support vector machines (SVMs with appropriate weighting factor.Results: The classification performance is improved by using multilevel ROI features with an accuracy of 96.66%, a specificity of 96.62%, and a sensitivity of 95.67%. The most discriminating ROI features that are related to self-esteem spread over occipital lobe, frontal lobe, parietal lobe, limbic lobe, temporal lobe, and central region, mainly involving white matter and cortical thickness. The most discriminating similarity features are distributed in both the right and left hemisphere, including frontal lobe, occipital lobe, limbic lobe, parietal lobe, and central region, which conveys information of structural connections between different brain regions.Conclusion: By using ROI features and similarity features to exam self-esteem related brain morphometry, this paper provides a pilot evidence that self-esteem is linked to specific ROIs and structural connections between different brain regions.

  2. Cerebral blood flow SPET in transient global amnesia with automated ROI analysis by 3DSRT

    Energy Technology Data Exchange (ETDEWEB)

    Takeuchi, Ryo [Division of Nuclear Medicine, Nishi-Kobe Medical Center, Kohjidai 5-7-1, 651-2273, Nishi-ku, Kobe-City, Hyogo (Japan); Matsuda, Hiroshi [Department of Radiology, National Center Hospital for Mental, Nervous and Muscular Disorders, National Center of Neurology and Psychiatry, Tokyo (Japan); Yoshioka, Katsunori [Daiichi Radioisotope Laboratories, Ltd., Tokyo (Japan); Yonekura, Yoshiharu [Biomedical Imaging Research Center, University of Fukui, Fukui (Japan)

    2004-04-01

    The aim of this study was to determine the areas involved in episodes of transient global amnesia (TGA) by calculation of cerebral blood flow (CBF) using 3DSRT, fully automated ROI analysis software which we recently developed. Technetium-99m l,l-ethyl cysteinate dimer single-photon emission tomography ({sup 99m}Tc-ECD SPET) was performed during and after TGA attacks on eight patients (four men and four women; mean study interval, 34 days). The SPET images were anatomically standardized using SPM99 followed by quantification of 318 constant ROIs, grouped into 12 segments (callosomarginal, precentral, central, parietal, angular, temporal, posterior cerebral, pericallosal, lenticular nucleus, thalamus, hippocampus and cerebellum), in each hemisphere to calculate segmental CBF (sCBF) as the area-weighted mean value for each of the respective 12 segments based on the regional CBF in each ROI. Correlation of the intra- and post-episodic sCBF of each of the 12 segments of the eight patients was estimated by scatter-plot graphical analysis and Pearson's correlation test with Fisher's Z-transformation. For the control, {sup 99m}Tc-ECD SPET was performed on eight subjects (three men and five women) and repeated within 1 month; the correlation between the first and second sCBF values of each of the 12 segments was evaluated in the same way as for patients with TGA. Excellent reproducibility between the two sCBF values was found in all 12 segments of the control subjects. However, a significant correlation between intra- and post-episodic sCBF was not shown in the thalamus or angular segments of TGA patients. The present study was preliminary, but at least suggested that thalamus and angular regions are closely involved in the symptoms of TGA. (orig.)

  3. Cerebral blood flow SPET in transient global amnesia with automated ROI analysis by 3DSRT

    International Nuclear Information System (INIS)

    Takeuchi, Ryo; Matsuda, Hiroshi; Yoshioka, Katsunori; Yonekura, Yoshiharu

    2004-01-01

    The aim of this study was to determine the areas involved in episodes of transient global amnesia (TGA) by calculation of cerebral blood flow (CBF) using 3DSRT, fully automated ROI analysis software which we recently developed. Technetium-99m l,l-ethyl cysteinate dimer single-photon emission tomography ( 99m Tc-ECD SPET) was performed during and after TGA attacks on eight patients (four men and four women; mean study interval, 34 days). The SPET images were anatomically standardized using SPM99 followed by quantification of 318 constant ROIs, grouped into 12 segments (callosomarginal, precentral, central, parietal, angular, temporal, posterior cerebral, pericallosal, lenticular nucleus, thalamus, hippocampus and cerebellum), in each hemisphere to calculate segmental CBF (sCBF) as the area-weighted mean value for each of the respective 12 segments based on the regional CBF in each ROI. Correlation of the intra- and post-episodic sCBF of each of the 12 segments of the eight patients was estimated by scatter-plot graphical analysis and Pearson's correlation test with Fisher's Z-transformation. For the control, 99m Tc-ECD SPET was performed on eight subjects (three men and five women) and repeated within 1 month; the correlation between the first and second sCBF values of each of the 12 segments was evaluated in the same way as for patients with TGA. Excellent reproducibility between the two sCBF values was found in all 12 segments of the control subjects. However, a significant correlation between intra- and post-episodic sCBF was not shown in the thalamus or angular segments of TGA patients. The present study was preliminary, but at least suggested that thalamus and angular regions are closely involved in the symptoms of TGA. (orig.)

  4. Les marbriers des Bâtiments du roi : organisation et réalisations

    Directory of Open Access Journals (Sweden)

    Sophie Mouquin

    2012-09-01

    Full Text Available Matériau noble, symbole de beauté, de pouvoir et d’éternité, le marbre est sous l’Ancien Régime, et particulièrement sous le règne de Louis XIV et la Régence, un matériau royal. Toutes les maisons royales reçoivent pavements, lambris et cheminées réalisés dans des marbres aux couleurs vives, provenant pour la plupart de carrières du royaume. Leur origine répond ainsi à la politique royale du marbre français que les directeurs des Bâtiments du roi s’efforcent de mettre en place et de consolider. Tous ces travaux ont leurs artisans : Derbais, Dezègre, Pasquier, Ménard, Mathaut, Lisquy, Tarlé, Trouard, etc., autant de noms indissociables des réalisations marbrières dans les maisons royales, mais si souvent oubliés. Ils jouent pourtant, dans ce domaine, un rôle de premier plan à tous niveaux, de la carrière au chantier. L’exposé présente l’organisation de ce corps de métier, sa place au sein des Bâtiments du roi et son rôle dans la politique marbrière. Il s’appuie sur les principales réalisations versaillaises, comme l’appartement des bains, l’escalier des Ambassadeurs, l’escalier de la Reine, la galerie des Glaces, le salon d’Hercule, les cheminées et les lambris des appartements du Roi et de la Reine. Il évoquera le chantier des jardins avec le bosquet de la Colonnade et d’autres bosquets.

  5. A multilevel-ROI-features-based machine learning method for detection of morphometric biomarkers in Parkinson's disease.

    Science.gov (United States)

    Peng, Bo; Wang, Suhong; Zhou, Zhiyong; Liu, Yan; Tong, Baotong; Zhang, Tao; Dai, Yakang

    2017-06-09

    Machine learning methods have been widely used in recent years for detection of neuroimaging biomarkers in regions of interest (ROIs) and assisting diagnosis of neurodegenerative diseases. The innovation of this study is to use multilevel-ROI-features-based machine learning method to detect sensitive morphometric biomarkers in Parkinson's disease (PD). Specifically, the low-level ROI features (gray matter volume, cortical thickness, etc.) and high-level correlative features (connectivity between ROIs) are integrated to construct the multilevel ROI features. Filter- and wrapper- based feature selection method and multi-kernel support vector machine (SVM) are used in the classification algorithm. T1-weighted brain magnetic resonance (MR) images of 69 PD patients and 103 normal controls from the Parkinson's Progression Markers Initiative (PPMI) dataset are included in the study. The machine learning method performs well in classification between PD patients and normal controls with an accuracy of 85.78%, a specificity of 87.79%, and a sensitivity of 87.64%. The most sensitive biomarkers between PD patients and normal controls are mainly distributed in frontal lobe, parental lobe, limbic lobe, temporal lobe, and central region. The classification performance of our method with multilevel ROI features is significantly improved comparing with other classification methods using single-level features. The proposed method shows promising identification ability for detecting morphometric biomarkers in PD, thus confirming the potentiality of our method in assisting diagnosis of the disease. Copyright © 2017 Elsevier B.V. All rights reserved.

  6. An alternative to γ histograms for ROI-based quantitative dose comparisons

    International Nuclear Information System (INIS)

    Dvorak, P

    2009-01-01

    An alternative to gamma (γ) histograms for ROI-based quantitative comparisons of dose distributions using the γ concept is proposed. The method provides minimum values of dose difference and distance-to-agreement such that a pre-set fraction of the region of interest passes the γ test. Compared to standard γ histograms, the method provides more information in terms of pass rate per γ calculation. This is achieved at negligible additional calculation cost and without loss of accuracy. The presented method is proposed as a useful and complementary alternative to standard γ histograms, increasing both the quantity and quality of information for use in acceptance or rejection decisions. (note)

  7. Effects of ROI definition and reconstruction method on quantitative outcome and applicability in a response monitoring trial

    International Nuclear Information System (INIS)

    Krak, Nanda C.; Boellaard, R.; Hoekstra, Otto S.; Hoekstra, Corneline J.; Twisk, Jos W.R.; Lammertsma, Adriaan A.

    2005-01-01

    Quantitative measurement of tracer uptake in a tumour can be influenced by a number of factors, including the method of defining regions of interest (ROIs) and the reconstruction parameters used. The main purpose of this study was to determine the effects of different ROI methods on quantitative outcome, using two reconstruction methods and the standard uptake value (SUV) as a simple quantitative measure of FDG uptake. Four commonly used methods of ROI definition (manual placement, fixed dimensions, threshold based and maximum pixel value) were used to calculate SUV (SUV [MAN] , SUV 15 mm , SUV 50 , SUV 75 and SUV max , respectively) and to generate ''metabolic'' tumour volumes. Test-retest reproducibility of SUVs and of ''metabolic'' tumour volumes and the applicability of ROI methods during chemotherapy were assessed. In addition, SUVs calculated on ordered subsets expectation maximisation (OSEM) and filtered back-projection (FBP) images were compared. ROI definition had a direct effect on quantitative outcome. On average, SUV [MAN] , SUV 15 mm , SUV 50 and SUV 75 , were respectively 48%, 27%, 34% and 15% lower than SUV max when calculated on OSEM images. No statistically significant differences were found between SUVs calculated on OSEM and FBP reconstructed images. Highest reproducibility was found for SUV 15 mm and SUV [MAN] (ICC 0.95 and 0.94, respectively) and for ''metabolic'' volumes measured with the manual and 50% threshold ROIs (ICC 0.99 for both). Manual, 75% threshold and maximum pixel ROIs could be used throughout therapy, regardless of changes in tumour uptake or geometry. SUVs showed the same trend in relative change in FDG uptake after chemotherapy, irrespective of the ROI method used. The method of ROI definition has a direct influence on quantitative outcome. In terms of simplicity, user-independence, reproducibility and general applicability the threshold-based and fixed dimension methods are the best ROI methods. Threshold methods are in

  8. Study of regional cerebral blood flow in obsessive compulsive disorder patients with SPM and ROI method

    International Nuclear Information System (INIS)

    Li Peiyong; Jiang Xufeng; Zhang Liying; Guo Wanhua; Zhu Chengmo

    2002-01-01

    Objective: To investigate the alternations in regional cerebral blood flow (rCBF) in obsessive compulsive disorder (OCD) patients using statistical parametric mapping (SPM). Methods: rCBF measurements using 99 Tc m -ethyl cysteinate dimer (ECD) SPECT was performed on 14 OCD patients and 23 age-matched healthy volunteers. The rCBF distribution was compared between these two groups with SPM under the conditions of increased and decreased perfusion, and with regions of interest (ROIs) using cerebral template. P value was set at 0.01 level. Results: SPM analysis showed that rCBF decreased in cerebral areas including bilateral putamen, superior temporal gyrus and precuneus, and right orbital gyrus, superior and middle frontal gyrus, and left temporo-occipital lobule and superior parietal gyrus, and vermis. rCBF was also increased in left inferior frontal gyrus and posterior cingulate gyrus. With ROIs method, rCBF was decreased in right anterior frontal, temporo-parietal lobule and left temporo-occipital lobule. Conclusions: The study supports the viewpoint that rCBF abnormality of fronto-striatal circuits is involved in OCD patients. SPM method is a forceful tool in analyzing cerebral regional characters

  9. Computerized analysis of mammographic parenchymal patterns for assessing breast cancer risk: Effect of ROI size and location

    International Nuclear Information System (INIS)

    Li Hui; Giger, Maryellen L.; Huo Zhimin; Olopade, Olufunmilayo I.; Lan Li; Weber, Barbara L.; Bonta, Ioana

    2004-01-01

    The long-term goal of our research is to develop computerized radiographic markers for assessing breast density and parenchymal patterns that may be used together with clinical measures for determining the risk of breast cancer and assessing the response to preventive treatment. In our earlier studies, we found that women at high risk tended to have dense breasts with mammographic patterns that were coarse and low in contrast. With our method, computerized texture analysis is performed on a region of interest (ROI) within the mammographic image. In our current study, we investigate the effect of ROI size and ROI location on the computerized texture features obtained from 90 subjects (30 BRCA1/BRCA2 gene-mutation carriers and 60 age-matched women deemed to be at low risk for breast cancer). Mammograms were digitized at 0.1 mm pixel size and various ROI sizes were extracted from different breast regions in the craniocaudal (CC) view. Seventeen features, which characterize the density and texture of the parenchymal patterns, were extracted from the ROIs on these digitized mammograms. Stepwise feature selection and linear discriminant analysis were applied to identify features that differentiate between the low-risk women and the BRCA1/BRCA2 gene-mutation carriers. ROC analysis was used to assess the performance of the features in the task of distinguishing between these two groups. Our results show that there was a statistically significant decrease in the performance of the computerized texture features, as the ROI location was varied from the central region behind the nipple. However, we failed to show a statistically significant decrease in the performance of the computerized texture features with decreasing ROI size for the range studied

  10. Ground penetrating radar data used in discovery of the early Christian church of Notre Dame de Baudes near Labastide-du-Temple, France

    Directory of Open Access Journals (Sweden)

    Ted L Gragson

    2016-06-01

    Full Text Available Data on ground-penetrating radar transect files are provided that support the research presented in "Discovery and Appraisal of the Early Christian Church of Notre Dame de Baudes near Labastide-du-Temple, France" [1]. Data consist of 102 transect files obtained with a GSSI SIR-3000 controller and a 400 MHz center frequency antenna in two grid blocks covering ca. 2700 m2. The data are distributed raw without post-processing in SEG-Y rev. 1 format (little endian.

  11. Ground penetrating radar data used in discovery of the early Christian church of Notre Dame de Baudes near Labastide-du-Temple, France.

    Science.gov (United States)

    Gragson, Ted L; Thompson, Victor D; Leigh, David S; Hautefeuille, Florent

    2016-06-01

    Data on ground-penetrating radar transect files are provided that support the research presented in "Discovery and Appraisal of the Early Christian Church of Notre Dame de Baudes near Labastide-du-Temple, France" [1]. Data consist of 102 transect files obtained with a GSSI SIR-3000 controller and a 400 MHz center frequency antenna in two grid blocks covering ca. 2700 m(2). The data are distributed raw without post-processing in SEG-Y rev. 1 format (little endian).

  12. Evidence of pre-industrial air pollution from the Heads of the Kings of Juda statues from Notre Dame Cathedral in Paris.

    Science.gov (United States)

    Del Monte, M; Ausset, P; Lefèvre, R A; Thiébault, S

    2001-06-12

    Pollution originating from wood combustion characterised the urban atmospheres of the past and led to the formation of thin grey crusts on the surface of the stone of monuments. The grey crusts discovered on the Heads of the Kings of Juda statues, which adorned the facade of Notre Dame in Paris from the 13th century until 1792, constitute a material record of the effects of this ancient air pollution. The height at which the statues stood suggests that the effect was not the result of a point phenomenon, but was caused by a generalised pollution of the Paris atmosphere at the time.

  13. A Joint Watermarking and ROI Coding Scheme for Annotating Traffic Surveillance Videos

    Directory of Open Access Journals (Sweden)

    Su Po-Chyi

    2010-01-01

    Full Text Available We propose a new application of information hiding by employing the digital watermarking techniques to facilitate the data annotation in traffic surveillance videos. There are two parts in the proposed scheme. The first part is the object-based watermarking, in which the information of each vehicle collected by the intelligent transportation system will be conveyed/stored along with the visual data via information hiding. The scheme is integrated with H.264/AVC, which is assumed to be adopted by the surveillance system, to achieve an efficient implementation. The second part is a Region of Interest (ROI rate control mechanism for encoding traffic surveillance videos, which helps to improve the overall performance. The quality of vehicles in the video will be better preserved and a good rate-distortion performance can be attained. Experimental results show that this potential scheme works well in traffic surveillance videos.

  14. Implementasi CMMI dalam Sebuah Organisasi Pengembang Software untuk Mencapai Return on Investment (ROI yang Diinginkan

    Directory of Open Access Journals (Sweden)

    Ikrar Adinata Arin

    2012-06-01

    Full Text Available The main mechanism to achieve a level of maturity in the organization of software developers is always focused, structured and consistent in carrying out work procedures of a quality standard applied. This article offers readers an approach and discourse of using CMMI (Capability Maturity Model Integrated concept thatgives a positive impact on development of organizational business in a software developer. The goals of CMMI are getting the best product quality, increasing productivity, reducing operational costs as well as software development period and increasing customer’s satisfaction. Nevertheless, a leader of the organization shouldalso be able to take important decisions to be consistent with the estimated time of desired return on investment (ROI.

  15. Shifting from region of interest (ROI) to voxel-based analysis in human brain mapping

    International Nuclear Information System (INIS)

    Astrakas, Loukas G.; Argyropoulou, Maria I.

    2010-01-01

    Current clinical studies involve multidimensional high-resolution images containing an overwhelming amount of structural and functional information. The analysis of such a wealth of information is becoming increasingly difficult yet necessary in order to improve diagnosis, treatment and healthcare. Voxel-wise analysis is a class of modern methods of image processing in the medical field with increased popularity. It has replaced manual region of interest (ROI) analysis and has provided tools to make statistical inferences at voxel level. The introduction of voxel-based analysis software in all modern commercial scanners allows clinical use of these techniques. This review will explain the main principles, advantages and disadvantages behind these methods of image analysis. (orig.)

  16. The fast iris image clarity evaluation based on Tenengrad and ROI selection

    Science.gov (United States)

    Gao, Shuqin; Han, Min; Cheng, Xu

    2018-04-01

    In iris recognition system, the clarity of iris image is an important factor that influences recognition effect. In the process of recognition, the blurred image may possibly be rejected by the automatic iris recognition system, which will lead to the failure of identification. Therefore it is necessary to evaluate the iris image definition before recognition. Considered the existing evaluation methods on iris image definition, we proposed a fast algorithm to evaluate the definition of iris image in this paper. In our algorithm, firstly ROI (Region of Interest) is extracted based on the reference point which is determined by using the feature of the light spots within the pupil, then Tenengrad operator is used to evaluate the iris image's definition. Experiment results show that, the iris image definition algorithm proposed in this paper could accurately distinguish the iris images of different clarity, and the algorithm has the merit of low computational complexity and more effectiveness.

  17. Recovery from optic neuritis: an ROI-based analysis of LGN and visual cortical areas

    DEFF Research Database (Denmark)

    Korsholm, Kirsten; Madsen, Kristoffer Hougaard; Frederiksen, Jette L

    2007-01-01

    in the ROIs and compared activation during monocular stimulation of the affected and unaffected eye. In the acute phase the activation of LGN during visual stimulation of the affected eye was significantly reduced (P difference in LGN activation between...... the affected and unaffected eye diminished during recovery, and after 180 days the difference was no longer significant (P = 0.59). The decreased difference during recovery was mainly due to an increase in the fMRI signal when stimulating the affected eye, but included a component of a decreasing fMRI signal...... from LGN when stimulating the unaffected eye. In LOC, V1 and V2 activation during visual stimulation of the affected eye in the acute phase was significantly reduced (P difference diminished with no significant differences left after 180...

  18. Single-shot full resolution region-of-interest (ROI) reconstruction in image plane digital holographic microscopy

    Science.gov (United States)

    Singh, Mandeep; Khare, Kedar

    2018-05-01

    We describe a numerical processing technique that allows single-shot region-of-interest (ROI) reconstruction in image plane digital holographic microscopy with full pixel resolution. The ROI reconstruction is modelled as an optimization problem where the cost function to be minimized consists of an L2-norm squared data fitting term and a modified Huber penalty term that are minimized alternately in an adaptive fashion. The technique can provide full pixel resolution complex-valued images of the selected ROI which is not possible to achieve with the commonly used Fourier transform method. The technique can facilitate holographic reconstruction of individual cells of interest from a large field-of-view digital holographic microscopy data. The complementary phase information in addition to the usual absorption information already available in the form of bright field microscopy can make the methodology attractive to the biomedical user community.

  19. Determination of Monthly Aerosol Types in Manila Observatory and Notre Dame of Marbel University from Aerosol Robotic Network (AERONET) measurements.

    Science.gov (United States)

    Ong, H. J. J.; Lagrosas, N.; Uy, S. N.; Gacal, G. F. B.; Dorado, S.; Tobias, V., Jr.; Holben, B. N.

    2016-12-01

    This study aims to identify aerosol types in Manila Observatory (MO) and Notre Dame of Marbel University (NDMU) using Aerosol Robotic Network (AERONET) Level 2.0 inversion data and five dimensional specified clustering and Mahalanobis classification. The parameters used are the 440-870 nm extinction Angström exponent (EAE), 440 nm single scattering albedo (SSA), 440-870 nm absorption Angström exponent (AAE), 440 nm real and imaginary refractive indices. Specified clustering makes use of AERONET data from 7 sites to define 7 aerosol classes: mineral dust (MD), polluted dust (PD), urban industrial (UI), urban industrial developing (UID), biomass burning white smoke (BBW), biomass burning dark smoke (BBD), and marine aerosols. This is similar to the classes used by Russell et al, 2014. A data point is classified into a class based on the closest 5-dimensional Mahalanobis distance (Russell et al, 2014 & Hamill et al, 2016). This method is applied to all 173 MO data points from January 2009 to June 2015 and to all 24 NDMU data points from December 2009 to July 2015 to look at monthly and seasonal variations of aerosol types. The MO and NDMU aerosols are predominantly PD ( 77%) and PD & UID ( 75%) respectively (Figs.1a-b); PD is predominant in the months of February to May in MO and February to March in NDMU. PD results from less strict emission and environmental regulations (Catrall 2005). Average SSA values in MO is comparable to the mean SSA for PD ( 0.89). This can be attributed to presence of high absorbing aerosol types, e.g., carbon which is a product of transportation emissions. The second most dominant aerosol type in MO is UID ( 15%), in NDMU it is BBW ( 25%). In Manila, the high sources of PD and UID (fine particles) is generally from vehicular combustion (Oanh, et al 2006). The detection of BBW in MO from April to May can be attributed to the fires which are common in these dry months. In NDMU, BBW source is from biomass burning (smoldering). In this

  20. Dame Maud McCarthy (1859-1949): Matron-in-Chief, British Expeditionary Forces France and Flanders, First World War.

    Science.gov (United States)

    Shields, Rosemary; Shields, Linda

    2016-11-01

    Emma Maud McCarthy was one of the most decorated nurses of the First World War. Born in Sydney in 1859, she trained as a nurse at The London Hospital in England. She was one of the first nurses to go to the South African War and in 1914 was one of the first members of Queen Alexandra's Imperial Nursing Service. Maud McCarthy went to France as Matron-in-Chief of British, Colonial and US nursing services until the end of hostilities in 1918. After the First World War she became Matron-in-Chief of the Territorial Army Nursing Service and retired five years later. She was appointed Dame Grand Cross in 1918 and earned awards from Britain, France, Belgium and America. Her influence on nursing was profound. One of the first senior nurses to recognise the impact of war on minds, she set up separate units for men who had self-harmed and she pioneered nurse anaesthetists in the British Armed Forces. Dame Maud McCarthy was an administrator par excellence whose determination to provide the best conditions possible for both her nurses and the men for whom they cared made possible the highest standards of nursing care in the First World War. © The Author(s) 2015.

  1. Automated PET-only quantification of amyloid deposition with adaptive template and empirically pre-defined ROI

    Science.gov (United States)

    Akamatsu, G.; Ikari, Y.; Ohnishi, A.; Nishida, H.; Aita, K.; Sasaki, M.; Yamamoto, Y.; Sasaki, M.; Senda, M.

    2016-08-01

    Amyloid PET is useful for early and/or differential diagnosis of Alzheimer’s disease (AD). Quantification of amyloid deposition using PET has been employed to improve diagnosis and to monitor AD therapy, particularly in research. Although MRI is often used for segmentation of gray matter and for spatial normalization into standard Montreal Neurological Institute (MNI) space where region-of-interest (ROI) template is defined, 3D MRI is not always available in clinical practice. The purpose of this study was to examine the feasibility of PET-only amyloid quantification with an adaptive template and a pre-defined standard ROI template that has been empirically generated from typical cases. A total of 68 subjects who underwent brain 11C-PiB PET were examined. The 11C-PiB images were non-linearly spatially normalized to the standard MNI T1 atlas using the same transformation parameters of MRI-based normalization. The automatic-anatomical-labeling-ROI (AAL-ROI) template was applied to the PET images. All voxel values were normalized by the mean value of cerebellar cortex to generate the SUVR-scaled images. Eleven typical positive images and eight typical negative images were normalized and averaged, respectively, and were used as the positive and negative template. Positive and negative masks which consist of voxels with SUVR  ⩾1.7 were extracted from both templates. Empirical PiB-prone ROI (EPP-ROI) was generated by subtracting the negative mask from the positive mask. The 11C-PiB image of each subject was non-rigidly normalized to the positive and negative template, respectively, and the one with higher cross-correlation was adopted. The EPP-ROI was then inversely transformed to individual PET images. We evaluated differences of SUVR between standard MRI-based method and PET-only method. We additionally evaluated whether the PET-only method would correctly categorize 11C-PiB scans as positive or negative. Significant correlation was observed between the SUVRs

  2. Integrated Marketing Communications (IMC) Variables That Influence Perceived Return on Investment (ROI) in Higher Education: Chief Marketing Officers' Perceptions

    Science.gov (United States)

    King, Adrienne L.

    2013-01-01

    This study examines the relationship of the level of Integrated Marketing Communications (IMC) implementation, level of open systems and change in state appropriations on perceived return on investment (ROI) in U.S. public higher education institutions (HEIs). Designed to provide HEI leaders with data to more accurately determine the best IMC…

  3. Lib-Value: Values, Outcomes, and Return on Investment of Academic Libraries, Phase III: ROI of the Syracuse University Library

    Science.gov (United States)

    Kingma, Bruce; McClure, Kathleen

    2015-01-01

    This study measures the return on investment (ROI) of the Syracuse University library. Faculty and students at Syracuse University were surveyed using contingent valuation methodology to measure their willingness to pay in time and money for the services of the academic library. Their travel time and use of the online library was measured to…

  4. Reliability evaluation of I-123 ADAM SPECT imaging using SPM software and AAL ROI methods

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Bang-Hung [Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei, Taiwan (China); Department of Nuclear Medicine, Taipei Veterans General Hospital, Taiwan (China); Tsai, Sung-Yi [Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei, Taiwan (China); Department of Imaging Medical, St.Martin De Porres Hospital, Chia-Yi, Taiwan (China); Wang, Shyh-Jen [Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei, Taiwan (China); Department of Nuclear Medicine, Taipei Veterans General Hospital, Taiwan (China); Su, Tung-Ping; Chou, Yuan-Hwa [Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan (China); Chen, Chia-Chieh [Institute of Nuclear Energy Research, Longtan, Taiwan (China); Chen, Jyh-Cheng, E-mail: jcchen@ym.edu.tw [Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei, Taiwan (China)

    2011-08-21

    The level of serotonin was regulated by serotonin transporter (SERT), which is a decisive protein in regulation of serotonin neurotransmission system. Many psychiatric disorders and therapies were also related to concentration of cerebral serotonin. I-123 ADAM was the novel radiopharmaceutical to image SERT in brain. The aim of this study was to measure reliability of SERT densities of healthy volunteers by automated anatomical labeling (AAL) method. Furthermore, we also used statistic parametric mapping (SPM) on a voxel by voxel analysis to find difference of cortex between test and retest of I-123 ADAM single photon emission computed tomography (SPECT) images. Twenty-one healthy volunteers were scanned twice with SPECT at 4 h after intravenous administration of 185 MBq of {sup 123}I-ADAM. The image matrix size was 128x128 and pixel size was 3.9 mm. All images were obtained through filtered back-projection (FBP) reconstruction algorithm. Region of interest (ROI) definition was performed based on the AAL brain template in PMOD version 2.95 software package. ROI demarcations were placed on midbrain, pons, striatum, and cerebellum. All images were spatially normalized to the SPECT MNI (Montreal Neurological Institute) templates supplied with SPM2. And each image was transformed into standard stereotactic space, which was matched to the Talairach and Tournoux atlas. Then differences across scans were statistically estimated on a voxel by voxel analysis using paired t-test (population main effect: 2 cond's, 1 scan/cond.), which was applied to compare concentration of SERT between the test and retest cerebral scans. The average of specific uptake ratio (SUR: target/cerebellum-1) of {sup 123}I-ADAM binding to SERT in midbrain was 1.78{+-}0.27, pons was 1.21{+-}0.53, and striatum was 0.79{+-}0.13. The cronbach's {alpha} of intra-class correlation coefficient (ICC) was 0.92. Besides, there was also no significant statistical finding in cerebral area using SPM2

  5. Language pathway tracking: comparing nTMS-based DTI fiber tracking with a cubic ROIs-based protocol.

    Science.gov (United States)

    Negwer, Chiara; Sollmann, Nico; Ille, Sebastian; Hauck, Theresa; Maurer, Stefanie; Kirschke, Jan S; Ringel, Florian; Meyer, Bernhard; Krieg, Sandro M

    2017-03-01

    OBJECTIVE Diffusion tensor imaging (DTI) fiber tracking (FT) has been widely used in glioma surgery in recent years. It can provide helpful information about subcortical structures, especially in patients with eloquent space-occupying lesions. This study compared the newly developed navigated transcranial magnetic stimulation (nTMS)-based DTI FT of language pathways with the most reproducible protocol for language pathway tractography, using cubic regions of interest (ROIs) for the arcuate fascicle. METHODS Thirty-seven patients with left-sided perisylvian lesions underwent language mapping by repetitive nTMS. DTI FT was performed using the cubic ROIs-based protocol and the authors' nTMS-based DTI FT approach. The same minimal fiber length and fractional anisotropy were chosen (50 mm and 0.2, respectively). Both protocols were performed with standard clinical tractography software. RESULTS Both methods visualized language-related fiber tracts (i.e., corticonuclear tract, arcuate fascicle, uncinate fascicle, superior longitudinal fascicle, inferior longitudinal fascicle, arcuate fibers, commissural fibers, corticothalamic fibers, and frontooccipital fascicle) in all 37 patients. Using the cubic ROIs-based protocol, 39.9% of these language-related fiber tracts were detected in the examined patients, as opposed to 76.0% when performing nTMS-based DTI FT. For specifically tracking the arcuate fascicle, however, the cubic ROIs-based approach showed better results (97.3% vs 75.7% with nTMS-based DTI FT). CONCLUSIONS The cubic ROIs-based protocol was designed for arcuate fascicle tractography, and this study shows that it is still useful for this intention. However, superior results were obtained using the nTMS-based DTI FT for visualization of other language-related fiber tracts.

  6. Efficient random access high resolution region-of-interest (ROI) image retrieval using backward coding of wavelet trees (BCWT)

    Science.gov (United States)

    Corona, Enrique; Nutter, Brian; Mitra, Sunanda; Guo, Jiangling; Karp, Tanja

    2008-03-01

    Efficient retrieval of high quality Regions-Of-Interest (ROI) from high resolution medical images is essential for reliable interpretation and accurate diagnosis. Random access to high quality ROI from codestreams is becoming an essential feature in many still image compression applications, particularly in viewing diseased areas from large medical images. This feature is easier to implement in block based codecs because of the inherent spatial independency of the code blocks. This independency implies that the decoding order of the blocks is unimportant as long as the position for each is properly identified. In contrast, wavelet-tree based codecs naturally use some interdependency that exploits the decaying spectrum model of the wavelet coefficients. Thus one must keep track of the decoding order from level to level with such codecs. We have developed an innovative multi-rate image subband coding scheme using "Backward Coding of Wavelet Trees (BCWT)" which is fast, memory efficient, and resolution scalable. It offers far less complexity than many other existing codecs including both, wavelet-tree, and block based algorithms. The ROI feature in BCWT is implemented through a transcoder stage that generates a new BCWT codestream containing only the information associated with the user-defined ROI. This paper presents an efficient technique that locates a particular ROI within the BCWT coded domain, and decodes it back to the spatial domain. This technique allows better access and proper identification of pathologies in high resolution images since only a small fraction of the codestream is required to be transmitted and analyzed.

  7. A localization algorithm of adaptively determining the ROI of the reference circle in image

    Science.gov (United States)

    Xu, Zeen; Zhang, Jun; Zhang, Daimeng; Liu, Xiaomao; Tian, Jinwen

    2018-03-01

    Aiming at solving the problem of accurately positioning the detection probes underwater, this paper proposed a method based on computer vision which can effectively solve this problem. The theory of this method is that: First, because the shape information of the heat tube is similar to a circle in the image, we can find a circle which physical location is well known in the image, we set this circle as the reference circle. Second, we calculate the pixel offset between the reference circle and the probes in the picture, and adjust the steering gear through the offset. As a result, we can accurately measure the physical distance between the probes and the under test heat tubes, then we can know the precise location of the probes underwater. However, how to choose reference circle in image is a difficult problem. In this paper, we propose an algorithm that can adaptively confirm the area of reference circle. In this area, there will be only one circle, and the circle is the reference circle. The test results show that the accuracy of the algorithm of extracting the reference circle in the whole picture without using ROI (region of interest) of the reference circle is only 58.76% and the proposed algorithm is 95.88%. The experimental results indicate that the proposed algorithm can effectively improve the efficiency of the tubes detection.

  8. [Buffon, the director of 'Jardin du Roi' in the 1700s].

    Science.gov (United States)

    Jeune, Bernard; Petersen, Hans Christian

    2008-01-01

    Buffon and Linné were the two greatest naturalists of the 1700s. As they were both born in 1707, their 300 anniversaries were therefore celebrated in France and Sweden. At the celebration meeting at the University of Bourgogne in Dijon - The Buffon Legacy - September 3-6, 2007, we presented the following paper: "Buffon and the longevity of species". In the present paper the life and work of Buffon is introduced on the basis of recent literature, including Jacques Roger's famous biography. Among non-biologists Buffon has nearly been forgotten, even though in the 1700s he was considered to be at the same level as the most famous French thinkers of the Enlightenment - Montesquieu, Voltaire, Rousseau and Diderot. His largest contributions were the publication of his comprehensive "Histoire naturelle" and his long and significant leadership of "Jardin du Roi", which he built up to become one of the best scientific institutions of Europe. Buffon's scientific contributions wereas overshadowed by those of Linné, as it was his classification system, which became dominant all overn Europe. Buffon's student Lamarck and later Darwin contributed by pushing Buffon in oblivion of history, even though Darwin valued him highly. However, in recent decades Buffon is experiencing a renaissance in connection with the increasing interest in biological anthropology, biogeography, ethology, and ecology, as well as on account of his modern species concept.

  9. Bias in tensor based morphometry Stat-ROI measures may result in unrealistic power estimates.

    Science.gov (United States)

    Thompson, Wesley K; Holland, Dominic

    2011-07-01

    A series of reports have recently appeared using tensor based morphometry statistically-defined regions of interest, Stat-ROIs, to quantify longitudinal atrophy in structural MRIs from the Alzheimer's Disease Neuroimaging Initiative (ADNI). This commentary focuses on one of these reports, Hua et al. (2010), but the issues raised here are relevant to the others as well. Specifically, we point out a temporal pattern of atrophy in subjects with Alzheimer's disease and mild cognitive impairment whereby the majority of atrophy in two years occurs within the first 6 months, resulting in overall elevated estimated rates of change. Using publicly-available ADNI data, this temporal pattern is also found in a group of identically-processed healthy controls, strongly suggesting that methodological bias is corrupting the measures. The resulting bias seriously impacts the validity of conclusions reached using these measures; for example, sample size estimates reported by Hua et al. (2010) may be underestimated by a factor of five to sixteen. Copyright © 2011 Elsevier Inc. All rights reserved.

  10. Career satisfaction and work-life balance of specialist orthodontists within the UK/ROI.

    Science.gov (United States)

    Al-Junaid, S M; Hodges, S J; Petrie, A; Cunningham, S J

    2017-07-07

    Objectives To investigate factors affecting career satisfaction and work-life balance in specialist orthodontists in the UK/ROI.Design and setting Prospective questionnaire-based study.Subjects and methods The questionnaire was sent to specialist orthodontists who were members of the British Orthodontic Society.Results Orthodontists reported high levels of career satisfaction (median score 90/100). Career satisfaction was significantly higher in those who exhibited: i) satisfaction with working hours; ii) satisfaction with the level of control over their working day; iii) ability to manage unexpected home events; and iv) confidence in how readily they managed patient expectations. The work-life balance score was lower than the career satisfaction score but the median score was 75/100. Work-life balance scores were significantly affected by the same four factors, but additionally were higher in those who worked part-time.Conclusions Orthodontists in this study were highly satisfied with their career and the majority responded that they would choose orthodontics again. Work-life balance scores were lower than career satisfaction scores but still relatively high. It is important for the profession to consider ways of maintaining, or improving, career satisfaction and work-life balance; including maintaining flexibility of working hours and ensuring that all clinicians have ready access to appropriate training courses throughout their careers (for example, management of patient expectations).

  11. Coastal groundwater exchange on a small Pacific atoll island: Roi Namur, Republic of the Marshall Islands

    Science.gov (United States)

    Oberle, Ferdinand K. J.; Swarzenski, Peter W.; Storlazzi, Curt

    2017-04-01

    Atoll islands, most of which only average 1-2 meters above today's sea level, provide a tremendous natural laboratory in which to study and better understand the intensifying impacts of high rates of sea-level rise on tropical reef-lined islands globally due to their unique geologic structure and limited water supply. Groundwater resources of atolls are typically minimal due to the low elevation and small surface area of the islands and are also subject to recurring droughts, and more frequent, storm-driven seawater overwash events. Although groundwater is the principal means of freshwater storage on atoll islands and is a major factor in determining the overall sustainability of island communities, hydrological data on how an aquifer will response to changes in sea-level rise or storm-driven overwash remain limited. We here present high-resolution time series hydrogeological and geochemical data to determine the role of the atoll's carbonate geology, land use, and atmospheric and oceanographic forcing in driving coastal groundwater exchange on the island of Roi Namur on Kwajalein Atoll in the Republic of the Marshall Islands. This information can provide new estimates on the recovery and resilience of coastal groundwater resources on such islands to expected climate change-driven perturbations.

  12. Aznar, Hanotin, and May (eds., À la place du roi. Vice-rois, gouverneurs et ambassadeurs dans les monarchies française et espanole (Casa de Velázquez, 2014

    Directory of Open Access Journals (Sweden)

    Lisandra Estevez

    2016-06-01

    Full Text Available The French and Spanish courts were two of the most powerful cultural and political institutions in seventeenth-century Europe.  Both rivals and allies, the French and Spanish crowns were bound by disputes and diplomacy.  This anthology examines the Gallic and Iberian court systems from a comparative approach, filling an important lacuna in early modern political studies and diplomatic history.  It is based on the proceedings of a seminar held at the Casa de Velázquez, Madrid in June 2010. Edited by Daniel Aznar, Guillaume Hanotin and Niels F. May, À la place du roi. Vice-rois, gouverneurs et ambassadeurs dans les monarchies française et espanole (XVIe-XVIIIe siècles unites ten essays by leading scholars of seventeenth-century French and Spanish history.

  13. Effects of diet and exercise on weight-related outcomes for breast cancer survivors and their adult daughters: an analysis of the DAMES trial.

    Science.gov (United States)

    Tometich, Danielle B; Mosher, Catherine E; Winger, Joseph G; Badr, Hoda J; Snyder, Denise C; Sloane, Richard J; Demark-Wahnefried, Wendy

    2017-08-01

    Few trials have aimed to promote diet and exercise behaviors in both cancer survivors and their family members and examine their associations with weight-related outcomes. We conducted a secondary analysis to examine associations between change in diet and exercise behaviors and weight-related outcomes for overweight breast cancer survivors and their overweight adult daughters in the Daughters And MothErS Against Breast Cancer (DAMES) randomized trial. The DAMES trial assessed the impact of two iteratively tailored, mailed print diet and exercise interventions against standard brochures over a 12-month period. This analysis examined change in diet and exercise behaviors and weight-related variables from baseline to post-intervention for the 50 breast cancer survivors and their adult daughters randomized to the intervention arms. To reduce the potential for type II error in this pilot, p values diet quality was uniquely related to change in BMI (β = -0.12, p = 0.082), weight (β = -0.12, p = 0.060), and waist circumference (β = -0.38, p = 0.001), whereas change in caloric intake was related to waist circumference (β = 0.21, p = 0.002). For daughters, change in caloric intake was related to change in waist circumference (β = 0.12, p = 0.055). However, change in diet quality was not associated with weight-related outcomes in daughters. Additionally, change in exercise was not associated with weight-related outcomes in mothers or daughters. Findings support mail-based and other tailored interventions for weight loss in this population, with an emphasis on diet quality for breast cancer survivors and caloric intake for their adult daughters.

  14. Numerical investigation of the efficiency of emission reduction and heat extraction in a sedimentary geothermal reservoir: a case study of the Daming geothermal field in China.

    Science.gov (United States)

    Guo, Xuyang; Song, Hongqing; Killough, John; Du, Li; Sun, Pengguang

    2018-02-01

    The utilization of geothermal energy is clean and has great potential worldwide, and it is important to utilize geothermal energy in a sustainable manner. Mathematical modeling studies of geothermal reservoirs are important as they evaluate and quantify the complex multi-physical effects in geothermal reservoirs. However, previous modeling efforts lack the study focusing on the emission reduction efficiency and the deformation at geothermal wellbores caused by geothermal water extraction/circulation. Emission efficiency is rather relevant in geothermal projects introduced in areas characterized by elevated air pollution where the utilization of geothermal energy is as an alternative to burning fossil fuels. Deformation at geothermal wellbores is also relevant as significant deformation caused by water extraction can lead to geothermal wellbore instability and can consequently decrease the effectiveness of the heat extraction process in geothermal wells. In this study, the efficiency of emission reduction and heat extraction in a sedimentary geothermal reservoir in Daming County, China, are numerically investigated based on a coupled multi-physical model. Relationships between the efficiency of emission reduction and heat extraction, deformation at geothermal well locations, and geothermal field parameters including well spacing, heat production rate, re-injection temperature, rock stiffness, and geothermal well placement patterns are analyzed. Results show that, although large heat production rates and low re-injection temperatures can lead to decreased heat production in the last 8 years of heat extraction, they still improve the overall heat production capacity and emission reduction capacity. Also, the emission reduction capacity is positively correlated with the heat production capacity. Deformation at geothermal wellbore locations is alleviated by smaller well spacing, lower heat production rates, and smaller numbers of injectors in the well pattern, and by

  15. A framework supporting the development of a Grid portal for analysis based on ROI.

    Science.gov (United States)

    Ichikawa, K; Date, S; Kaishima, T; Shimojo, S

    2005-01-01

    In our research on brain function analysis, users require two different simultaneous types of processing: interactive processing to a specific part of data and high-performance batch processing to an entire dataset. The difference between these two types of processing is in whether or not the analysis is for data in the region of interest (ROI). In this study, we propose a Grid portal that has a mechanism to freely assign computing resources to the users on a Grid environment according to the users' two different types of processing requirements. We constructed a Grid portal which integrates interactive processing and batch processing by the following two mechanisms. First, a job steering mechanism controls job execution based on user-tagged priority among organizations with heterogeneous computing resources. Interactive jobs are processed in preference to batch jobs by this mechanism. Second, a priority-based result delivery mechanism that administrates a rank of data significance. The portal ensures a turn-around time of interactive processing by the priority-based job controlling mechanism, and provides the users with quality of services (QoS) for interactive processing. The users can access the analysis results of interactive jobs in preference to the analysis results of batch jobs. The Grid portal has also achieved high-performance computation of MEG analysis with batch processing on the Grid environment. The priority-based job controlling mechanism has been realized to freely assign computing resources to the users' requirements. Furthermore the achievement of high-performance computation contributes greatly to the overall progress of brain science. The portal has thus made it possible for the users to flexibly include the large computational power in what they want to analyze.

  16. Automatic feature learning using multichannel ROI based on deep structured algorithms for computerized lung cancer diagnosis.

    Science.gov (United States)

    Sun, Wenqing; Zheng, Bin; Qian, Wei

    2017-10-01

    This study aimed to analyze the ability of extracting automatically generated features using deep structured algorithms in lung nodule CT image diagnosis, and compare its performance with traditional computer aided diagnosis (CADx) systems using hand-crafted features. All of the 1018 cases were acquired from Lung Image Database Consortium (LIDC) public lung cancer database. The nodules were segmented according to four radiologists' markings, and 13,668 samples were generated by rotating every slice of nodule images. Three multichannel ROI based deep structured algorithms were designed and implemented in this study: convolutional neural network (CNN), deep belief network (DBN), and stacked denoising autoencoder (SDAE). For the comparison purpose, we also implemented a CADx system using hand-crafted features including density features, texture features and morphological features. The performance of every scheme was evaluated by using a 10-fold cross-validation method and an assessment index of the area under the receiver operating characteristic curve (AUC). The observed highest area under the curve (AUC) was 0.899±0.018 achieved by CNN, which was significantly higher than traditional CADx with the AUC=0.848±0.026. The results from DBN was also slightly higher than CADx, while SDAE was slightly lower. By visualizing the automatic generated features, we found some meaningful detectors like curvy stroke detectors from deep structured schemes. The study results showed the deep structured algorithms with automatically generated features can achieve desirable performance in lung nodule diagnosis. With well-tuned parameters and large enough dataset, the deep learning algorithms can have better performance than current popular CADx. We believe the deep learning algorithms with similar data preprocessing procedure can be used in other medical image analysis areas as well. Copyright © 2017. Published by Elsevier Ltd.

  17. Ludwig, un roi sur la lune : l’histoire d’un roi fou jouée par des comédien.ne.s en situation de handicap mental

    Directory of Open Access Journals (Sweden)

    Marie Astier

    2017-12-01

    Full Text Available Ludwig, un roi sur la lune, spectacle mis en scène par Madeleine Louarn avec les comédien.ne.s professionnels en situation de handicap mental de l’Atelier Catalyse et présenté lors de la dernière édition du Festival d’Avignon n’est pas une reconstitution historique de la vie de Louis II de Bavière, roi du XIXe siècle diagnostiqué paranoïaque et destitué pour être interné, mais une tentative de transcrire théâtralement la perception du monde d’un homme amoureux de l’Art, de la nature et des hommes, mais qui devait être Roi. Ce n’est ni un personnage ni des comédien.ne.s « handicapé.e.s » que nous sommes invités à voir, mais les visions de Ludwig incarnées par des comédien.ne.s qui se trouvent être en situation de handicap mental. Dans ce spectacle, la « folie » devenue plus tard « handicap mental » apparaît sous les traits de la non-conformité bien plus que sous ceux de la pathologie.

  18. Wavelet-based compression with ROI coding support for mobile access to DICOM images over heterogeneous radio networks.

    Science.gov (United States)

    Maglogiannis, Ilias; Doukas, Charalampos; Kormentzas, George; Pliakas, Thomas

    2009-07-01

    Most of the commercial medical image viewers do not provide scalability in image compression and/or region of interest (ROI) encoding/decoding. Furthermore, these viewers do not take into consideration the special requirements and needs of a heterogeneous radio setting that is constituted by different access technologies [e.g., general packet radio services (GPRS)/ universal mobile telecommunications system (UMTS), wireless local area network (WLAN), and digital video broadcasting (DVB-H)]. This paper discusses a medical application that contains a viewer for digital imaging and communications in medicine (DICOM) images as a core module. The proposed application enables scalable wavelet-based compression, retrieval, and decompression of DICOM medical images and also supports ROI coding/decoding. Furthermore, the presented application is appropriate for use by mobile devices activating in heterogeneous radio settings. In this context, performance issues regarding the usage of the proposed application in the case of a prototype heterogeneous system setup are also discussed.

  19. MEASURES OF EFFICIENCY AND INVESTMENTS RETURN: AN STUDY OF BRAZILIAN ELECTRICITY DISTRIBUTORS WITH DATA ENVELOPMENT ANALYSIS, MALMQUIST INDEX AND ROI

    Directory of Open Access Journals (Sweden)

    Valter Saurin

    2013-03-01

    Full Text Available This paper aims to determine, in a group of companies from the Brazilian electric sector, if there is a relationship between the return on investment (ROI and the concept of efficiency estimated by the method Data Envelopment Analysis (DEA, as well as evaluating the growth of productivity based on Malmquist Index (Fare et al, 1996. The hypothesis is that firms that had return on investment higher during certain period of time are those employed their resources efficiently in getting their outputs (DEA efficient. The input (1 Products (5 DEA model correspond to the operating cost (I, the network length (km, the number of consumers and the market billed high, medium and low voltage, respectively. The sample consisted of 31 companies of Brazilian electricity distribution and timing of the study was from 2007 to 2009. We calculated the Malmquist index (M0, represented by the change in total factor productivity (TFPC, which is composed by the evolution of technical efficiency (EC and the change in the technological frontier (TC of the companies were also determined ROI for each period. We calculated the correlation between the TFPC, TC, EC, score the DEA and the ROI for the period 2007 to 2009. The results showed a positive correlation, although weak, between efficiency change and the indexes mentioned above, rejecting the initial hypothesis

  20. Effect of single-visit VIA and cryotherapy cervical cancer prevention program in Roi Et, Thailand: a preliminary report.

    Science.gov (United States)

    Chumworathayi, Bandit; Blumenthal, Paul D; Limpaphayom, Khunying Kobchitt; Kamsa-Ard, Supot; Wongsena, Metee; Supaatakorn, Pongsatorn

    2010-02-01

    To assess the effect of introducing visual inspection with acetic acid and cryotherapy on cervical cancer incidence rates in Roi Et province over time, between 1997 and 2006, and compare this with two nearby provinces. Data from two cancer registration units, one in Srinagarind Hospital and another in Ubon Ratchathani Cancer Center (to which all cervical cancer patients were referred from the three study provinces) were registered, extracted, combined and analyzed using a generalized estimation equation. Cervical cancer detection rates improved. These are represented by the apparent increased incidence rates in Roi Et province during the study period compared with two nearby provinces (P = 0.01), equivalent to a doubling of the previously reported age-standardized incidence ratio and three times its baseline in 2006. A single-visit approach to cervical cancer prevention in Roi Et province using visual inspection with acetic acid and cryotherapy appeared to have an effect in revealing an increased cervical cancer incidence rate by achieving higher coverage, resulting in increased case finding.

  1. A comparison between the conventional manual ROI method and an automatic algorithm for semiquantitative analysis of SPECT studies

    International Nuclear Information System (INIS)

    Pagan, L; Novi, B; Guidarelli, G; Tranfaglia, C; Galli, S; Lucchi, G; Fagioli, G

    2011-01-01

    In this study, the performance of a free software for automatic segmentation of striatal SPECT brain studies (BasGanV2 - www.aimn.it) and a standard manual Region Of Interest (ROI) method were compared. The anthropomorphic Alderson RSD phantom, filled with solutions at different concentration of 123 I-FP-CIT with Caudate-Putamen to Background ratios between 1 and 8.7 and Caudate to Putamen ratios between 1 and 2, was imaged on a Philips-Irix triple head gamma camera. Images were reconstructed using filtered back-projection and processed with both BasGanV2, that provides normalized striatal uptake values on volumetric anatomical ROIs, and a manual method, based on average counts per voxel in ROIs drawn in a three-slice section. Caudate-Putamen/Background and Caudate/Putamen ratios obtained with the two methods were compared with true experimental ratios. Good correlation was found for each method; BasGanV2, however, has higher R index (BasGan R mean = 0.95, p mean = 0.89, p 123 I-FP-CIT SPECT data with, moreover, the advantage of the availability of a control subject's database.

  2. Detecting high spatial variability of ice shelf basal mass balance, Roi Baudouin Ice Shelf, Antarctica

    Directory of Open Access Journals (Sweden)

    S. Berger

    2017-11-01

    Full Text Available Ice shelves control the dynamic mass loss of ice sheets through buttressing and their integrity depends on the spatial variability of their basal mass balance (BMB, i.e. the difference between refreezing and melting. Here, we present an improved technique – based on satellite observations – to capture the small-scale variability in the BMB of ice shelves. As a case study, we apply the methodology to the Roi Baudouin Ice Shelf, Dronning Maud Land, East Antarctica, and derive its yearly averaged BMB at 10 m horizontal gridding. We use mass conservation in a Lagrangian framework based on high-resolution surface velocities, atmospheric-model surface mass balance and hydrostatic ice-thickness fields (derived from TanDEM-X surface elevation. Spatial derivatives are implemented using the total-variation differentiation, which preserves abrupt changes in flow velocities and their spatial gradients. Such changes may reflect a dynamic response to localized basal melting and should be included in the mass budget. Our BMB field exhibits much spatial detail and ranges from −14.7 to 8.6 m a−1 ice equivalent. Highest melt rates are found close to the grounding line where the pressure melting point is high, and the ice shelf slope is steep. The BMB field agrees well with on-site measurements from phase-sensitive radar, although independent radar profiling indicates unresolved spatial variations in firn density. We show that an elliptical surface depression (10 m deep and with an extent of 0.7 km × 1.3 km lowers by 0.5 to 1.4 m a−1, which we tentatively attribute to a transient adaptation to hydrostatic equilibrium. We find evidence for elevated melting beneath ice shelf channels (with melting being concentrated on the channel's flanks. However, farther downstream from the grounding line, the majority of ice shelf channels advect passively (i.e. no melting nor refreezing toward the ice shelf front. Although the absolute, satellite

  3. Usefulness of a three-dimensional stereotaxic ROI template on anatomically standardised {sup 99m}Tc-ECD SPET

    Energy Technology Data Exchange (ETDEWEB)

    Takeuchi, Ryo [Department of Internal Medicine, Division of Nuclear Medicine, Nishi-Kobe Medical Center, Kobe (Japan); Yonekura, Yoshiharu [Biomedical Imaging Research Center, Fukui Medical University, Fukui (Japan); Matsuda, Hiroshi [Department of Radiology, National Center Hospital for Mental, Tokyo (Japan); Konishi, Junji [Department of Nuclear Medicine and Diagnostic Imaging, Graduate School of Medicine, Kyoto University, Kyoto (Japan)

    2002-03-01

    We have constructed a three-dimensional stereotaxic ROI template (3DSRT) on anatomically standardised cerebral blood flow (CBF) single-photon emission tomography (SPET) images to objectively estimate regional CBF (rCBF). The 3DSRT is composed of 259 regions of interest (ROIs) in 11 segments (1, superior frontal; 2, middle and inferior frontal; 3, primary sensorimotor; 4, parietal; 5, angular; 6, temporal; 7, occipital; 8, pericallosal; 9, lenticular nucleus; 10, thalamus; 11, hippocampus) on each side. We measured the rCBF values of the 518 ROIs and calculated the area-weighted average (segmental CBF; sCBF) of the 22 segments based on the rCBF in each ROI. We compared vascular reserve before and after revascularisation surgery using sCBF on anatomically standardised resting and acetazolamide (Acz)-challenged CBF SPET images, which were obtained using an equal-volume-split dual-injection single-day protocol [resting and vascular reserve (RVR) method] in 13 patients who had not suffered any major stroke but did have significant cerebrovascular stenosis. Prior to the evaluation, we examined the sCBF values of 16 subjects with various cerebrovascular conditions (8, normal; 3, lacunar infarction; 2, chronic infarction; 2, meningioma; 1, aneurysm) using physiological saline instead of Acz (placebo study) in order to confirm the reproducibility of the RVR method. In the placebo study we observed excellent linearity (y=1.444+0.964x) between the 352 pairs of baseline (x) and post-placebo (y) sCBF values in the 16 subjects, irrespective of the segment location. In all of the 13 patients, estimation of sCBF demonstrated impaired vascular reserve pre-operatively and improved vascular reserve postoperatively. We conclude that the 3DSRT, which could be identically set on the anatomically standardised images obtained at baseline and after Acz injection, allowed objective assessment of the pre- and postoperative vascular reserve, which was not easy with conventional ROI settings

  4. Baseline Marine Biological Survey ROI-NAMUR Outfall United States Army Kwajalein Atoll, Republic of the Marshall Islands, 1997(NODC Accession 0000630)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Roi-Namur is located at the northernmost tip of Kwajalein Atoll, approximately 64 kilometers north of the U.S. Army Kwajalein Atoll(USAKA) central command post on...

  5. Baseline marine biological survey at Roi-Namur sewage outfall, United States Army Kwajalein Atoll, Republic of the Marshall Islands, 1997 (NODC Accession 0000630)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Roi-Namur is located at the northernmost tip of Kwajalein Atoll, approximately 64 kilometers north of the U.S. Army Kwajalein Atoll (USAKA) central command post on...

  6. In situ observation data from the grouper roi (Cephalopholis argus) removal project in West Hawaii from 2010-2011 (NODC Accession 0082197)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In situ observations of the introduced predatory grouper roi (Cephalopholis argus) were taken within the coral reef ecosystem of Puako, northwest side of the Island...

  7. Marine biological survey of ROI-NAMUR outfall at the United States Army Kwajalein Atoll, Republic of the Marshall Islands, May 2000 (NODC Accession 0000653)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Roi-Namur is located at the northernmost tip of Kwajalein Atoll, approximately 64 kilometers north of the U.S. Army Kwajalein Atoll (USAKA) central command post on...

  8. The Study on Bone Mineral Density Measurement Error in Accordance with Change in ROI by Utilizing Dual Energy X-ray Absorptiometry

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Yun Hong [Dept. of Diagnostic Radiology, Korea University Guro Hospital, Seoul (Korea, Republic of); Lee, In Ja [Dept. of Radiological Technology, Dongnam Health College, Suwon (Korea, Republic of); Yong, Hyung Jin [Dept. of Medicine Physics, The Graduate School of Biomedical Science Korea University, Seoul (Korea, Republic of)

    2012-03-15

    Dual Energy X-ray Absorptiometry(DEXA) is commonly used to diagnose Osteoporosis. The errors of DEXA bone density operation are caused by operator, bone mineral density meter, blood testing, patient. We focus on operator error then study about how much influence operator's region of intest(ROI) in bone testing result. During from March to July in 2011. 50 patients ware selected respectively from 30, 40, 50, 60, and 70 age groups who came to Korea University Medical Center(KUMC) for their Osteoporosis treatment. A-test was performed with usually ROI and B-test was performed with most widely ROI. Then, We compare A-test and B-test for find maximum difference of T-score error which occurred operator ROI controlling. Standard deviation of T-score of B-test showed 0.1 higher then A-test in femur neck. Standard deviation of B-test showed 0.2 higher then A-test in Ward's area which in Greater trocanter and Inter trocanter. Standard deviation of B-test showed 0,1 lower then A-test in L-1. Bone density testing about Two hundred patients results are as follow. When operator ROI was changed wider than normal ROI, bone density of femur was measured more higher but bone density of L-spine was measured more lower then normal bone density. That means, sometime DEXA bone density testing result is dependent by operator ROI controlling. This is relevant with the patient's medicine and health insurance, thus, tester always keep the size of ROI for to prevent any problem in the patient.

  9. Radiologic-pathologic analysis of quantitative 3D tumour enhancement on contrast-enhanced MR imaging: a study of ROI placement

    International Nuclear Information System (INIS)

    Chockalingam, Arun; Duran, Rafael; Sohn, Jae Ho; Schernthaner, Ruediger; Chapiro, Julius; Lee, Howard; Sahu, Sonia; Nguyen, Sonny; Geschwind, Jean-Francois; Lin, MingDe

    2016-01-01

    To investigate the influence of region-of-interest (ROI) placement on 3D tumour enhancement [Quantitative European Association for the Study of the Liver (qEASL)] in hepatocellular carcinoma (HCC) patients treated with transcatheter arterial chemoembolization (TACE). Phase 1: 40 HCC patients had nine ROIs placed by one reader using systematic techniques (3 ipsilateral to the lesion, 3 contralateral to the lesion, and 3 dispersed throughout the liver) and qEASL variance was measured. Intra-class correlations were computed. Phase 2: 15 HCC patients with histosegmentation were selected. Six ROIs were systematically placed by AC (3 ROIs ipsilateral and 3 ROIs contralateral to the lesion). Three ROIs were placed by 2 radiologists. qEASL values were compared to histopathology by Pearson's correlation, linear regression, and median difference. Phase 1: The dispersed method (abandoned in phase 2) had low consistency and high variance. Phase 2: qEASL correlated strongly with pathology in systematic methods [Pearson's correlation coefficient = 0.886 (ipsilateral) and 0.727 (contralateral)] and in clinical methods (0.625 and 0.879). However, ipsilateral placement matched best with pathology (median difference: 5.4 %; correlation: 0.89; regression CI: [0.904, 0.1409]). qEASL is a robust method with comparable values among tested placements. Ipsilateral placement showed high consistency and better pathological correlation. (orig.)

  10. Keeping it real--building an ROI model for an ambulatory EMR initiative that the physician practices espouse.

    Science.gov (United States)

    Mullen, Rńee; Donnelly, John T

    2006-01-01

    The ambulatory electronic medical record initiative at Magic Valley Regional Medical Center (MVRMC) in South Central Idaho underwent a rigorous product evaluation process that resulted in one of the market-leading EMR products being selected for implementation. MVRMC includes four business entities, including a 213-bed regional hospital and a 19-practice management services organization. Early in the process, the organization viewed buy-in from its physicians as a critical success factor. The physicians had been integral to product selection, and it was equally important for them to trust the economic model for its acquisition-especially because it was likely that they would be asked to put "some skin in the game." To make this initiative economically feasible, MVRMC received a grant from Agency for Healthcare Research and Quality based on the potential impact of the endeavor on healthcare delivery in the region. However, because the functional analysis did not result in the selection of the least expensive product, the AHRQ grant would only help defray the startup expenses, but not ongoing support and maintenance expenses after implementation; these costs would be borne by anticipated increases in the practice's revenue or reduction in its operating expenses. The ROI model would need to explain how each practice, from the single physician specialist to an almost 20-physician family practice, could pay for the desirable outcomes discussed during the selection phase of the project. The physicians, who had participated in technology initiatives in the past, were skeptical that cost-justifying an IT system was realistic, even though they recognized the potential benefits it could have on the quality and consistency of the care. Because some process standardization within and between practices would be needed to use electronic charting effectively, it was important that the ROI model did not outweigh the benefits of an as-yet untested operational workflow that

  11. Safety of drinking water supplies to suburban Paris: analysis and control of radioactivity at Choisy-le-Roi

    International Nuclear Information System (INIS)

    Rapinat, M.; Philipot, J.M.; Cadet, J.L.

    1990-01-01

    The Syndicat des Eaux d'Ile de France and the Compagnie des Eaux have undertaken several stringent actions, to analyse and control radioactivity at Cholsy-le-Roi, 150 KM downstream from Nogent/s/Seine:- founding in 1985 a new laboratory branch for radioactivity measurement. - adding new elements to the existing alarm network (automatic analysis of the raw water quality). - studies for the treatability of radioelements. - using protected resources (ground water). -set up of a second treated water feeder between the river Seine and the river Marne areas. Others projects are under study, such as the creation of a raw water reservoir and increasing the capacity of treated water stockage. (author)

  12. A Hanged From the Past: Medical Consideration on the Judas Iscariot Fresco-Chapelle Notre-Dame-des-Fontaines, La Brigue (15th Century).

    Science.gov (United States)

    Gaeta, Raffaele; Fornaciari, Antonio

    2016-09-01

    The medieval chapel of Notre Dame-des-Fontaines (Our Lady of the Fountains), in the French Maritime Alps, is entirely covered by the fresco cycle of the Passion (15th century) that depicts the last days of Jesus from the Last Supper to the Resurrection. Under a small window, there is the brutal representation of the suicide of Judas Iscariot, hanging from a tree, with the abdomen quartered from which his soul, represented by a small man, is kidnapped by a devil. The author, Giovanni Canavesio, represented the traitor's death with very detailed anatomical structures, differently thus from other paintings of the same subject; it is therefore possible to assume that the artist had become familiar with the human anatomy. In particular, the realism of the hanged man's posture, neck bent in an unnatural way, allows us to hypothesize that it probably comes from direct observation of the executions of capital punishment, not infrequently imposed by the public authorities in low medieval Italy.

  13. 'Where are your intelligent mothers to come from?': marriage and family in the scientific career of Dame Kathleen Lonsdale FRS (1903-71).

    Science.gov (United States)

    Baldwin, Melinda

    2009-03-20

    Although she was one of the most successful female scientists in twentieth-century Britain, the X-ray crystallographer Kathleen Yardley Lonsdale (1903-71) has received relatively little attention from historians of science. This paper, based on material from the recently opened Dame Kathleen Lonsdale Papers, argues that Lonsdale's scientific career was shaped in particular ways by her identity not just as a woman, but as a married woman and a mother. When interacting with her scientific colleagues, Lonsdale frequently had to confront the assumption that married women should not pursue scientific careers, an attitude shaped by British concerns about reasserting traditional gender roles after the World Wars I and II. Furthermore, although Lonsdale's husband, Thomas, was an ardent supporter of her career, in the early 1930s Lonsdale left research temporarily to care for her small children. Her desire to work from home during this period led her to pursue one of her most significant scientific projects: the creation of crystallographic reference tables. Lonsdale's own experiences, and those of her female students, led her to focus on issues of marriage and family when she began speaking and writing about women in science during the late 1960s.

  14. Land-use change and managed aquifer recharge effects on the hydrogeochemistry of two contrasting atoll island aquifers, Roi-Namur Island, Republic of the Marshall Islands

    International Nuclear Information System (INIS)

    Hejazian, Mehrdad; Gurdak, Jason J.; Swarzenski, Peter; Odigie, Kingsley O.; Storlazzi, Curt D.

    2017-01-01

    Freshwater resources on low-lying atoll islands are highly vulnerable to climate change and sea-level rise. In addition to rainwater catchment, groundwater in the freshwater lens is a critically important water resource on many atoll islands, especially during drought. Although many atolls have high annual rainfall rates, dense natural vegetation and high evapotranspiration rates can limit recharge to the freshwater lens. Here we evaluate the effects of land-use/land-cover change and managed aquifer recharge on the hydrogeochemistry and supply of groundwater on Roi-Namur Island, Republic of the Marshall Islands. Roi-Namur is an artificially conjoined island that has similar hydrogeology on the Roi and Namur lobes, but has contrasting land-use/land-cover and managed aquifer recharge only on Roi. Vegetation removal and managed aquifer recharge operations have resulted in an estimated 8.6 × 10"5 m"3 of potable groundwater in the freshwater lens on Roi, compared to only 1.6 × 10"4 m"3 on Namur. We use groundwater samples from a suite of 33 vertically nested monitoring wells, statistical testing, and geochemical modeling using PHREEQC to show that the differences in land-use/land-cover and managed aquifer recharge on Roi and Namur have a statistically significant effect on several groundwater-quality parameters and the controlling geochemical processes. Results also indicate a six-fold reduction in the dissolution of carbonate rock in the freshwater lens and overlying vadose zone of Roi compared to Namur. Mixing of seawater and the freshwater lens is a more dominant hydrogeochemical process on Roi because of the greater recharge and flushing of the aquifer with freshwater as compared to Namur. In contrast, equilibrium processes and dissolution-precipitation non-equilibrium reactions are more dominant on Namur because of the longer residence times relative to the rate of geochemical reactions. Findings from Roi-Namur Island support selective land

  15. Development of intelligent surveillance system (ISS) in region of interest (ROI) using Kalman filter and camshift on Raspberry Pi 2

    Science.gov (United States)

    Park, Junghun; Hong, Kicheon

    2017-06-01

    Due to the improvement of the picture quality of closed-circuit television (CCTV), the demand for CCTV has increased rapidly and its market size has also increased. The current system structure of CCTV transfers compressed images without analysis received from CCTV to a control center. The compressed images are suitable for the evidence required for a criminal arrest, but they cannot prevent crime in real time, which has been considered a limitation. Thus, the present paper proposes a system implementation that can prevent crimes by applying a situation awareness system at the back end of the CCTV cameras for image acquisition to prevent crimes efficiently. In the system implemented in the present paper, the region of interest (ROI) is set virtually within the image data when a barrier, such as fence, cannot be installed in actual sites and unauthorized intruders are tracked constantly through data analysis and recognized in the ROI via the developed algorithm. Additionally, a searchlight or alarm sound is activated to prevent crime in real time and the urgent information is transferred to the control center. The system was implemented in the Raspberry Pi 2 board to be run in real time. The experiment results showed that the recognition success rate was 85% or higher and the track accuracy was 90% or higher. By utilizing the system, crime prevention can be achieved by implementing a social safety network.

  16. Return-on-Investment (ROI) Analyses of an Inpatient Lay Health Worker Model on 30-Day Readmission Rates in a Rural Community Hospital.

    Science.gov (United States)

    Cardarelli, Roberto; Bausch, Gregory; Murdock, Joan; Chyatte, Michelle Renee

    2017-07-07

    The purpose of the study was to assess the return-on-investment (ROI) of an inpatient lay health worker (LHW) model in a rural Appalachian community hospital impacting 30-day readmission rates. The Bridges to Home (BTH) study completed an evaluation in 2015 of an inpatient LHW model in a rural Kentucky hospital that demonstrated a reduction in 30-day readmission rates by 47.7% compared to a baseline period. Using the hospital's utilization and financial data, a validated ROI calculator specific to care transition programs was used to assess the ROI of the BTH model comparing 3 types of payment models including Diagnosis Related Group (DRG)-only payments, pay-for-performance (P4P) contracts, and accountable care organizations (ACOs). The BTH program had a -$0.67 ROI if the hospital had only a DRG-based payment model. If the hospital had P4P contracts with payers and 0.1% of its annual operating revenue was at risk, the ROI increased to $7.03 for every $1 spent on the BTH program. However, if the hospital was an ACO as was the case for this study's community hospital, the ROI significantly increased to $38.48 for every $1 spent on the BTH program. The BTH model showed a viable ROI to be considered by community hospitals that are part of an ACO or P4P program. A LHW care transition model may be a cost-effective alternative for impacting excess 30-day readmissions and avoiding associated penalties for hospital systems with a value-based payment model. © 2017 National Rural Health Association.

  17. Can state-of-the-art HVS-based objective image quality criteria be used for image reconstruction techniques based on ROI analysis?

    Science.gov (United States)

    Dostal, P.; Krasula, L.; Klima, M.

    2012-06-01

    Various image processing techniques in multimedia technology are optimized using visual attention feature of the human visual system. Spatial non-uniformity causes that different locations in an image are of different importance in terms of perception of the image. In other words, the perceived image quality depends mainly on the quality of important locations known as regions of interest. The performance of such techniques is measured by subjective evaluation or objective image quality criteria. Many state-of-the-art objective metrics are based on HVS properties; SSIM, MS-SSIM based on image structural information, VIF based on the information that human brain can ideally gain from the reference image or FSIM utilizing the low-level features to assign the different importance to each location in the image. But still none of these objective metrics utilize the analysis of regions of interest. We solve the question if these objective metrics can be used for effective evaluation of images reconstructed by processing techniques based on ROI analysis utilizing high-level features. In this paper authors show that the state-of-the-art objective metrics do not correlate well with subjective evaluation while the demosaicing based on ROI analysis is used for reconstruction. The ROI were computed from "ground truth" visual attention data. The algorithm combining two known demosaicing techniques on the basis of ROI location is proposed to reconstruct the ROI in fine quality while the rest of image is reconstructed with low quality. The color image reconstructed by this ROI approach was compared with selected demosaicing techniques by objective criteria and subjective testing. The qualitative comparison of the objective and subjective results indicates that the state-of-the-art objective metrics are still not suitable for evaluation image processing techniques based on ROI analysis and new criteria is demanded.

  18. Land-use change and managed aquifer recharge effects on the hydrogeochemistry of two contrasting atoll island aquifers, Roi-Namur Island, Republic of the Marshall Islands

    Science.gov (United States)

    Hejazian, Mehrdad; Gurdak, Jason J.; Swarzenski, Peter W.; Odigie, Kingsley; Storlazzi, Curt

    2017-01-01

    Freshwater resources on low-lying atoll islands are highly vulnerable to climate change and sea-level rise. In addition to rainwater catchment, groundwater in the freshwater lens is a critically important water resource on many atoll islands, especially during drought. Although many atolls have high annual rainfall rates, dense natural vegetation and high evapotranspiration rates can limit recharge to the freshwater lens. Here we evaluate the effects of land-use/land-cover change and managed aquifer recharge on the hydrogeochemistry and supply of groundwater on Roi-Namur Island, Republic of the Marshall Islands. Roi-Namur is an artificially conjoined island that has similar hydrogeology on the Roi and Namur lobes, but has contrasting land-use/land-cover and managed aquifer recharge only on Roi. Vegetation removal and managed aquifer recharge operations have resulted in an estimated 8.6 x 105 m3 of potable groundwater in the freshwater lens on Roi, compared to only 1.6 x 104 m3 on Namur. We use groundwater samples from a suite of 33 vertically nested monitoring wells, statistical testing, and geochemical modeling using PHREEQC to show that the differences in land-use/land-cover and managed aquifer recharge on Roi and Namur have a statistically significant effect on several groundwater-quality parameters and the controlling geochemical processes. Results also indicate a seven-fold reduction in the dissolution of carbonate rock in the freshwater lens and overlying vadose zone of Roi compared to Namur. Mixing of seawater and the freshwater lens is a more dominant hydrogeochemical process on Roi because of the greater recharge and flushing of the aquifer with freshwater as compared to Namur. In contrast, equilibrium processes and dissolution-precipitation non-equilibrium reactions are more dominant on Namur because of the longer residence times relative to the rate of geochemical reactions. Findings from Roi-Namur Island support selective land-use/land-cover change and

  19. In situ study of the impact of inter- and intra-reader variability on region of interest (ROI) analysis in preclinical molecular imaging.

    Science.gov (United States)

    Habte, Frezghi; Budhiraja, Shradha; Keren, Shay; Doyle, Timothy C; Levin, Craig S; Paik, David S

    2013-01-01

    We estimated reader-dependent variability of region of interest (ROI) analysis and evaluated its impact on preclinical quantitative molecular imaging. To estimate reader variability, we used five independent image datasets acquired each using microPET and multispectral fluorescence imaging (MSFI). We also selected ten experienced researchers who utilize molecular imaging in the same environment that they typically perform their own studies. Nine investigators blinded to the data type completed the ROI analysis by drawing ROIs manually that delineate the tumor regions to the best of their knowledge and repeated the measurements three times, non-consecutively. Extracted mean intensities of voxels within each ROI are used to compute the coefficient of variation (CV) and characterize the inter- and intra-reader variability. The impact of variability was assessed through random samples iterated from normal distributions for control and experimental groups on hypothesis testing and computing statistical power by varying subject size, measured difference between groups and CV. The results indicate that inter-reader variability was 22.5% for microPET and 72.2% for MSFI. Additionally, mean intra-reader variability was 10.1% for microPET and 26.4% for MSFI. Repeated statistical testing showed that a total variability of CV variability has been observed mainly due to differences in the ROI placement and geometry drawn between readers, which may adversely affect statistical power and erroneously lead to negative study outcomes.

  20. Tombes et cimetières éthiopiens : des rois, des saints, des anonymes1

    OpenAIRE

    Derat, Marie-Laure

    2009-01-01

    L’histoire des tombes et cimetières éthiopiens, dans la longue durée, en est encore à ses balbutiements. Si les tombes des saints et des rois nous sont un peu mieux connus grâce à des textes témoignant à la fois des enjeux entourant les sépultures de ces personnages hors du commun et des soins apportés à leur inhumation, en revanche, les cimetières ordinaires échappent encore largement à l’enquête, en grande partie parce que le commun des mortels est inhumé dans l’anonymat et dans un grand dé...

  1. La Maison du Roi sous Louis XIV, une troupe d’élite. Étude tactique

    OpenAIRE

    Chauviré, Frédéric

    2009-01-01

    La Maison du roi constitue le corps le plus prestigieux de l’armée royale. Mais c’est aussi une troupe d’élite, redoutée sur tous les champs de bataille. Sa supériorité tactique trouve son origine dans la singularité de sa doctrine de combat. Beaucoup plus manœuvrière que les régiments ordinaires, elle s’en distingue également par sa conduite de la charge : choix de l’arme blanche, adoption d’une allure élevée et recherche du choc. Les qualités de cette troupe expliquent que Louis XIV ait vou...

  2. Kad ljubav ne može umrijeti... Ljubav i destruktivni diskurs u filmskim adaptacijama drame Friedricha Dürrenmatta Posjet stare dame

    Directory of Open Access Journals (Sweden)

    Sonja Novak

    2017-06-01

    Full Text Available The paper analyses film adaptations of the play Der Besuch der alten Dame written by the Swiss author Friedrich Dürrenmatt with special focus on how they thematise love. Dürrenmatt’s play is in its essence a tragic comedy that deals with the issue of greed and the distortion of basic moral values such as honesty and sincerity that are then also turned into greed, culminating in the justification of violence and murder for profit. The film adaptations that are analysed in the paper are the German version from 1959, the American version from 1964, and the newest German version from 2008. The analysis shows that the American and the newest German version do not adhere to the original pattern in terms of representing the love and relationship between the two main characters, Claire and Alfred. It is important to stress that love is the trigger that directs the plot to its end. The role that love plays in the film adaptations is the key factor that influences whether the end is tragic or not, which depends also on the historic, social, and cultural context in which the adaptations were filmed. Furthermore, the paper includes an analysis of the metamorphosis of a love that cannot die into a love that cannot be sustained: Eros, powered by the libido of the main characters Claire and Alfred in the past, slowly progresses until it turns into the destructive death drive of Thanatos. The analysis simultaneously explores to what extent each film adaptation imitates the original destructive discourse of love present in Dürrenmatt’s play.

  3. Voxel based statistical analysis method for microPET studies to assess the cerebral glucose metabolism in cat deafness model: comparison to ROI based method

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jin Su; Lee, Jae Sung; Park, Min Hyun; Lee, Jong Jin; Kang, Hye Jin; Lee, Hyo Jeong; Oh, Seung Ha; Kim, Chong Sun; Jung, June Key; Lee, Myung Chul; Lee, Dong Soo [Seoul National University College of Medicine, Seoul (Korea, Republic of); Lim, Sang Moo [KIRAMS, Seoul (Korea, Republic of)

    2005-07-01

    Imaging research on the brain of sensory-deprived cats using small animal PET scanner has gained interest since the abundant information about the sensory system of ths animal is available and close examination of the brain is possible due to larger size of its brain than mouse or rat. In this study, we have established the procedures for 3D voxel-based statistical analysis (SPM) of FDG PET image of cat brain, and confirmed using ROI based-method. FDG PET scans of 4 normal and 4 deaf cats were acquired for 30 minutes using microPET R4 scanner. Only the brain cortices were extracted using a masking and threshold method to facilitate spatial normalization. After spatial normalization and smoothing, 3D voxel-wise and ROI based t-test were performed to identify the regions with significant different FDG uptake between the normal and deaf cats. In ROI analysis, 26 ROIs were drawn on both hemispheres, and regional mean pixel value in each ROI was normalized to the global mean of the brain. Cat brains were spatially normalized well onto the target brain due to the removal of background activity. When cerebral glucose metabolism of deaf cats were compared to the normal controls after removing the effects of the global count, the glucose metabolism in the auditory cortex, head of caudate nucleus, and thalamus in both hemispheres of the deaf cats was significantly lower than that of the controls (P<0.01). No area showed a significantly increased metabolism in the deaf cats even in higher significance level (P<0.05). ROI analysis also showed significant reduction of glucose metabolism in the same region. This study established and confirmed a method for voxel-based analysis of animal PET data of cat brain, which showed high localization accuracy and specificity and was useful for examining the cerebral glucose metabolism in a cat cortical deafness model.

  4. Voxel based statistical analysis method for microPET studies to assess the cerebral glucose metabolism in cat deafness model: comparison to ROI based method

    International Nuclear Information System (INIS)

    Kim, Jin Su; Lee, Jae Sung; Park, Min Hyun; Lee, Jong Jin; Kang, Hye Jin; Lee, Hyo Jeong; Oh, Seung Ha; Kim, Chong Sun; Jung, June Key; Lee, Myung Chul; Lee, Dong Soo; Lim, Sang Moo

    2005-01-01

    Imaging research on the brain of sensory-deprived cats using small animal PET scanner has gained interest since the abundant information about the sensory system of ths animal is available and close examination of the brain is possible due to larger size of its brain than mouse or rat. In this study, we have established the procedures for 3D voxel-based statistical analysis (SPM) of FDG PET image of cat brain, and confirmed using ROI based-method. FDG PET scans of 4 normal and 4 deaf cats were acquired for 30 minutes using microPET R4 scanner. Only the brain cortices were extracted using a masking and threshold method to facilitate spatial normalization. After spatial normalization and smoothing, 3D voxel-wise and ROI based t-test were performed to identify the regions with significant different FDG uptake between the normal and deaf cats. In ROI analysis, 26 ROIs were drawn on both hemispheres, and regional mean pixel value in each ROI was normalized to the global mean of the brain. Cat brains were spatially normalized well onto the target brain due to the removal of background activity. When cerebral glucose metabolism of deaf cats were compared to the normal controls after removing the effects of the global count, the glucose metabolism in the auditory cortex, head of caudate nucleus, and thalamus in both hemispheres of the deaf cats was significantly lower than that of the controls (P<0.01). No area showed a significantly increased metabolism in the deaf cats even in higher significance level (P<0.05). ROI analysis also showed significant reduction of glucose metabolism in the same region. This study established and confirmed a method for voxel-based analysis of animal PET data of cat brain, which showed high localization accuracy and specificity and was useful for examining the cerebral glucose metabolism in a cat cortical deafness model

  5. Le roi et la parole dans quelques recueils d’exempla castillans des XIIIe et XIVe siècles

    Directory of Open Access Journals (Sweden)

    Olivier Biaggini

    2007-05-01

    Full Text Available Aquí se examina el hablar del rey tal como lo ponen en escena los relatos ejemplares de Calila e Dimna, Sendebar, Castigos de Sancho IV y El conde Lucanor de don Juan Manuel. Un recorrido previo por el discurso alfonsí (Espéculo y Segunda partida permite precisar los planteamientos de la cuestión mostrando que la palabra regia vale menos por su enunciado que por su enunciación, sometida a unas reglas estrictas. Ahora bien, regular la palabra sirve para definir las condiciones de su poder. De modo muy diverso, las colecciones de exempla representan el hablar del rey en situaciones que subrayan su prestigio o que indican a la inversa la necesidad de controlar sus efectos nefastos. En todo caso, contribuye directamente a la construcción de modelos políticos que, si bien se aplican ante todo a la realeza (Calila, Sendebar, Castigos, pueden en cierta medida ajustarse también a la nobleza (Conde Lucanor.On examine ici la parole du roi telle que la mettent en scène les récits exemplaires du Calila e Dimna, du Sendebar, des Castigos de Sanche IV et du Conde Lucanor de Don Juan Manuel. Un détour par le discours juridique alphonsin (Espéculo et Segunda partida permet de préciser les enjeux de cette question en montrant que la parole royale vaut moins par son énoncé que par son énonciation, soumise à des contraintes strictes. Or, réguler la parole sert à définir les conditions de son pouvoir. De façon très variée, les recueils d’exempla représentent la parole du roi dans des situations qui soulignent son prestige ou, inversement, pointent la nécessité d’en contrôler les effets néfastes. Dans tous les cas, elle contribue directement à la construction de modèles politiques qui, s’ils s’appliquent avant tout à la royauté (Calila, Sendebar, Castigos, sont aussi en partie transposables à la noblesse (Conde Lucanor.

  6. Selection of optimum ROI for dual radionuclide analysis of 55Fe-63Ni and 63Ni-60Co

    International Nuclear Information System (INIS)

    Priya, S.; Prabhath Ravi, K.; Yadav, R.K.B.; Rao, D.D.; Gopalakrishnan, R.K.

    2016-01-01

    Dual label counting in liquid scintillation counting (LSC) enables simultaneous activity determination of two radionuclides. Dual counting procedure for 3 H and 14 C has been well established. There are several other nuclides like 63 Ni (E β- =67keV), 55 Fe (6 keV X-ray and auger electron) which are often chemically separated using detailed procedures with high decontamination factors (DF) and quantified using LSC. Despite the laborious separations, traces of these nuclides in the chemically separated fractions can mutually make their quantification difficult due to overlap of counts from both radionuclides in the spectrum, which gets further complicated in presence of traces of 60 Co. For dual label counting technique, it is essential to establish the discriminator setting at which there will be spillover of counts from both radionuclides in the two counting regions required for the inclusion method. The objective of the current work is to establish two counting ROI's for dual counting of (i) 63 Ni- 55 Fe and (ii) 63 Ni- 60 Co in a TDCR based LSC system

  7. Hydrogeology and geochemistry of the freshwater lens on Roi Namur atoll, the Republic of the Marshall Islands

    Science.gov (United States)

    Swarzenski, P. W.

    2015-12-01

    More than 90% of the world's ~400 larger atoll islands are located in the Pacific and Indian Oceans and are inhabited by ~ 3/4 million people. As ground elevations of these atolls rarely exceed a few meters above mean sea level, atoll communities must rely precariously on finite resources, including fresh water and land. When demand for water exceeds precipitation rates, fresh groundwater may provide an additional, albeit also limited resource. The shape and size of this freshwater lens is controlled by precipitation, infiltration, discharge, and groundwater pumping, as well as hydrogeologic characteristics of the aquifer, and climate. Small atoll islands like Roi Namur on Kwajalein perhaps best illustrate the strong interdependence of the islet's depositional history and geochemical transformations that occur within the shallow aquifer and its host rock. This study utilized electrical resistivity tomography (ERT) to define the position of the freshwater lens above underlying seawater and to examine scales of freshwater /saltwater mixing. Time series Rn-222 measurements were used to evaluate groundwater discharge rates to the coastal waters, and a suite of groundwater geochemical tracers, including select nutrients, trace elements, and water isotopes, were used to develop a better understanding of how the fresh water lens will likely to respond to external perturbations, such as managed recharge, and the inevitability of future marine over wash events that will be become more frequent and severe under expected sea level rise.

  8. A method to estimate the fractional fat volume within a ROI of a breast biopsy for WAXS applications: Animal tissue evaluation

    International Nuclear Information System (INIS)

    Tang, Robert Y.; McDonald, Nancy; Laamanen, Curtis; LeClair, Robert J.

    2014-01-01

    Purpose: To develop a method to estimate the mean fractional volume of fat (ν ¯ fat ) within a region of interest (ROI) of a tissue sample for wide-angle x-ray scatter (WAXS) applications. A scatter signal from the ROI was obtained and use of ν ¯ fat in a WAXS fat subtraction model provided a way to estimate the differential linear scattering coefficient μ s of the remaining fatless tissue. Methods: The efficacy of the method was tested using animal tissue from a local butcher shop. Formalin fixed samples, 5 mm in diameter 4 mm thick, were prepared. The two main tissue types were fat and meat (fibrous). Pure as well as composite samples consisting of a mixture of the two tissue types were analyzed. For the latter samples, ν fat for the tissue columns of interest were extracted from corresponding pixels in CCD digital x-ray images using a calibration curve. The means ν ¯ fat were then calculated for use in a WAXS fat subtraction model. For the WAXS measurements, the samples were interrogated with a 2.7 mm diameter 50 kV beam and the 6° scattered photons were detected with a CdTe detector subtending a solid angle of 7.75 × 10 −5 sr. Using the scatter spectrum, an estimate of the incident spectrum, and a scatter model, μ s was determined for the tissue in the ROI. For the composite samples, a WAXS fat subtraction model was used to estimate the μ s of the fibrous tissue in the ROI. This signal was compared to μ s of fibrous tissue obtained using a pure fibrous sample. Results: For chicken and beef composites, ν ¯ fat =0.33±0.05 and 0.32 ± 0.05, respectively. The subtractions of these fat components from the WAXS composite signals provided estimates of μ s for chicken and beef fibrous tissue. The differences between the estimates and μ s of fibrous obtained with a pure sample were calculated as a function of the momentum transfer x. A t-test showed that the mean of the differences did not vary from zero in a statistically significant way thereby

  9. Dynamic PET reconstruction using temporal patch-based low rank penalty for ROI-based brain kinetic analysis

    International Nuclear Information System (INIS)

    Kim, Kyungsang; Ye, Jong Chul; Son, Young Don; Cho, Zang Hee; Bresler, Yoram; Ra, Jong Beom

    2015-01-01

    Dynamic positron emission tomography (PET) is widely used to measure changes in the bio-distribution of radiopharmaceuticals within particular organs of interest over time. However, to retain sufficient temporal resolution, the number of photon counts in each time frame must be limited. Therefore, conventional reconstruction algorithms such as the ordered subset expectation maximization (OSEM) produce noisy reconstruction images, thus degrading the quality of the extracted time activity curves (TACs). To address this issue, many advanced reconstruction algorithms have been developed using various spatio-temporal regularizations. In this paper, we extend earlier results and develop a novel temporal regularization, which exploits the self-similarity of patches that are collected in dynamic images. The main contribution of this paper is to demonstrate that the correlation of patches can be exploited using a low-rank constraint that is insensitive to global intensity variations. The resulting optimization framework is, however, non-Lipschitz and non-convex due to the Poisson log-likelihood and low-rank penalty terms. Direct application of the conventional Poisson image deconvolution by an augmented Lagrangian (PIDAL) algorithm is, however, problematic due to its large memory requirements, which prevents its parallelization. Thus, we propose a novel optimization framework using the concave-convex procedure (CCCP) by exploiting the Legendre–Fenchel transform, which is computationally efficient and parallelizable. In computer simulation and a real in vivo experiment using a high-resolution research tomograph (HRRT) scanner, we confirm that the proposed algorithm can improve image quality while also extracting more accurate region of interests (ROI) based kinetic parameters. Furthermore, we show that the total reconstruction time for HRRT PET is significantly accelerated using our GPU implementation, which makes the algorithm very practical in clinical environments

  10. Du bon maniement de l’argent du roi en Espagne au XVIIIe siècle. Les enseignements d’un procès pour fraude

    Directory of Open Access Journals (Sweden)

    Anne Dubet

    2010-07-01

    Full Text Available Pour nombre d’historiens – dont je fais partie – les réformes financières entreprises par les premiers Bourbons d’Espagne au XVIIIe siècle n’affectent pas tant l’organisation fiscale de leurs territoires que leur administration. Avant que de modifier la répartition sociale des contributions, il s’agit de rendre au roi et à ses ministres de confiance la décision en matière de dépenses et de s’assurer de son exécution. Ce projet de contrôle accru du roi sur ses propres deniers se traduit certes...

  11. Efficient ConvNet Feature Extraction with Multiple RoI Pooling for Landmark-Based Visual Localization of Autonomous Vehicles

    Directory of Open Access Journals (Sweden)

    Yi Hou

    2017-01-01

    Full Text Available Efficient and robust visual localization is important for autonomous vehicles. By achieving impressive localization accuracy under conditions of significant changes, ConvNet landmark-based approach has attracted the attention of people in several research communities including autonomous vehicles. Such an approach relies heavily on the outstanding discrimination power of ConvNet features to match detected landmarks between images. However, a major challenge of this approach is how to extract discriminative ConvNet features efficiently. To address this challenging, inspired by the high efficiency of the region of interest (RoI pooling layer, we propose a Multiple RoI (MRoI pooling technique, an enhancement of RoI, and a simple yet efficient ConvNet feature extraction method. Our idea is to leverage MRoI pooling to exploit multilevel and multiresolution information from multiple convolutional layers and then fuse them to improve the discrimination capacity of the final ConvNet features. The main advantages of our method are (a high computational efficiency for real-time applications; (b GPU memory efficiency for mobile applications; and (c use of pretrained model without fine-tuning or retraining for easy implementation. Experimental results on four datasets have demonstrated not only the above advantages but also the high discriminating power of the extracted ConvNet features with state-of-the-art localization accuracy.

  12. SU-F-J-29: Dosimetric Effect of Image Registration ROI Size and Focus in Automated CBCT Registration for Spine SBRT

    Energy Technology Data Exchange (ETDEWEB)

    Magnelli, A; Smith, A; Chao, S; Suh, J; Xia, P [The Cleveland Clinic Foundation, Cleveland, OH (United States)

    2016-06-15

    Purpose: Spinal stereotactic body radiotherapy (SBRT) involves highly conformal dose distributions and steep dose gradients due to the proximity of the spinal cord to the treatment volume. To achieve the planning goals while limiting the spinal cord dose, patients are setup using kV cone-beam CT (kV-CBCT) with 6 degree corrections. The kV-CBCT registration with the reference CT is dependent on a user selected region of interest (ROI). The objective of this work is to determine the dosimetric impact of ROI selection. Methods: Twenty patients were selected for this study. For each patient, the kV-CBCT was registered to the reference CT using three ROIs including: 1) the external body, 2) a large anatomic region, and 3) a small region focused in the target volume. Following each registration, the aligned CBCTs and contours were input to the treatment planning system for dose evaluation. The minimum dose, dose to 99% and 90% of the tumor volume (D99%, D90%), dose to 0.03cc and the dose to 10% of the spinal cord subvolume (V10Gy) were compared to the planned values. Results: The average deviations in the tumor minimum dose were 2.68%±1.7%, 4.6%±4.0%, 14.82%±9.9% for small, large and the external ROIs, respectively. The average deviations in tumor D99% were 1.15%±0.7%, 3.18%±1.7%, 10.0%±6.6%, respectively. The average deviations in tumor D90% were 1.00%±0.96%, 1.14%±1.05%, 3.19%±4.77% respectively. The average deviations in the maximum dose to the spinal cord were 2.80%±2.56%, 7.58%±8.28%, 13.35%±13.14%, respectively. The average deviation in V10Gy to the spinal cord were 1.69%±0.88%, 1.98%±2.79%, 2.71%±5.63%. Conclusion: When using automated registration algorithms for CBCT-Reference alignment, a small target-focused ROI results in the least dosimetric deviation from the plan. It is recommended to focus narrowly on the target volume to keep the spinal cord dose below tolerance.

  13. A method to estimate the fractional fat volume within a ROI of a breast biopsy for WAXS applications: Animal tissue evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Tang, Robert Y., E-mail: rx-tang@laurentian.ca [Biomolecular Sciences Program, Laurentian University, 935 Ramsey Lake Road, Sudbury, Ontario P3E 2C6 (Canada); McDonald, Nancy, E-mail: mcdnancye@gmail.com; Laamanen, Curtis, E-mail: cx-laamanen@laurentian.ca [Department of Physics, Laurentian University, 935 Ramsey Lake Road, Sudbury, Ontario P3E 2C6 (Canada); LeClair, Robert J., E-mail: rleclair@laurentian.ca [Department of Physics, Laurentian University, 935 Ramsey Lake Road, Sudbury, Ontario P3E 2C6, Canada and Biomolecular Sciences Program, Laurentian University, 935 Ramsey Lake Road, Sudbury, Ontario P3E 2C6 (Canada)

    2014-11-01

    Purpose: To develop a method to estimate the mean fractional volume of fat (ν{sup ¯}{sub fat}) within a region of interest (ROI) of a tissue sample for wide-angle x-ray scatter (WAXS) applications. A scatter signal from the ROI was obtained and use of ν{sup ¯}{sub fat} in a WAXS fat subtraction model provided a way to estimate the differential linear scattering coefficient μ{sub s} of the remaining fatless tissue. Methods: The efficacy of the method was tested using animal tissue from a local butcher shop. Formalin fixed samples, 5 mm in diameter 4 mm thick, were prepared. The two main tissue types were fat and meat (fibrous). Pure as well as composite samples consisting of a mixture of the two tissue types were analyzed. For the latter samples, ν{sub fat} for the tissue columns of interest were extracted from corresponding pixels in CCD digital x-ray images using a calibration curve. The means ν{sup ¯}{sub fat} were then calculated for use in a WAXS fat subtraction model. For the WAXS measurements, the samples were interrogated with a 2.7 mm diameter 50 kV beam and the 6° scattered photons were detected with a CdTe detector subtending a solid angle of 7.75 × 10{sup −5} sr. Using the scatter spectrum, an estimate of the incident spectrum, and a scatter model, μ{sub s} was determined for the tissue in the ROI. For the composite samples, a WAXS fat subtraction model was used to estimate the μ{sub s} of the fibrous tissue in the ROI. This signal was compared to μ{sub s} of fibrous tissue obtained using a pure fibrous sample. Results: For chicken and beef composites, ν{sup ¯}{sub fat}=0.33±0.05 and 0.32 ± 0.05, respectively. The subtractions of these fat components from the WAXS composite signals provided estimates of μ{sub s} for chicken and beef fibrous tissue. The differences between the estimates and μ{sub s} of fibrous obtained with a pure sample were calculated as a function of the momentum transfer x. A t-test showed that the mean of the

  14. The Development of Rally Activities to Environmental Conservationfor Social Education Teachers of Mathayom Suksa Education Area Office 27 Roi-Et Province

    Directory of Open Access Journals (Sweden)

    Phiphop Sinthuphong

    2016-09-01

    Full Text Available The purposes of this research on the development of rally activities to environmental conservation for social education teachers of Mathayom suksa education area office 27 Roi-et province were ; 1 to study and analyze the place organized rally to environmental conservation, 2 to develop activities rally to environmental conservation for social education teachers 3 and compare knowledge and attitude toward environmental conservation, before and after the activity 4 to study participation in activities rally to environmental conservation after the activities. The samples used in the study and analysis of the event was social Education Teachers of Mathayom Suksa Education Area Office 27 Roi-Et Province were 77 and sample used in the event of 50 people. Social education teachers under the office of the secondary area 27 province. The tools used in this study were manual and brochures of Green activities Car Rally to environmental conservation, knowledge test, attitudes test and participating questionnaire manuals. The statistical analysis of data were percentage, mean, standard deviation and Paired t-test The results showed that there were proper place in activity all 9 points include 1. Wat Burapharam, 2. Pralanchai Swamp, 3.Roi-Et aquarium, 4. Ku Ka Sing ancient park, 5. Ku Phra Kona ancient park, 6. Jasmine rice learning source (land development station , 7. Chi river, 8.Don Swamp and 9. Rai Dakdea and dodo scouts camp. The tool in rally activities environmental conservation had suitability at more level. After participation of rally activities environmental conservation, social education teachers had mean score of knowledge and attitude to environmental conservation at more than before the participation at statistical significant level .05. And the score of knowledge and attitude toward environmental conservation, before and after the organized activities, it was found that, according to the hypothesis .05 and They had participation in

  15. 包装彩盒检测中定位核提取算法%Extraction algorithm of ROI for detecting colored box

    Institute of Scientific and Technical Information of China (English)

    陈功明; 李锋

    2016-01-01

    To reduce the complexity of the existing method for automatically extracting region of interest (ROI)and improve the detection efficiency in package printing detection process,an algorithm for automatic extraction of ROI was proposed on account of multi-feature.Based on the input selected rectangular region,by comparing the output parameters like contrast ratio,duty cycle,XY direction confidence interval and the symmetry of the fitting curve of the matching coefficient,the ROI was j udged to be good or not.The feasibility of the scheme was verified using the method of automatically calculative center coordinate error. Simulation analysis demonstrates that the algorithm succeeds in extracting automatic ROI for less than 100 ms,and success rate reaches 99.78% or more,the complexity of the proposed algorithm is much lower than that of the existing ones.The proposed verification method is simple and reliable.%为降低现有包装印刷品检测过程中感兴趣区域(简称定位核)提取方法的复杂度,提高检测效率,提出一种基于多特征的定位核自动提取方案。通过输入选中的矩形区域,输出参数对比度、占空比、XY 方向置信区间的取值范围及匹配系数拟合曲线的对称性,综合判断提取定位核的好坏。提出自动求取中心点坐标误差法对该方案的有效性进行验证。仿真分析结果表明,该方案可在100 ms内自动提取定位核,成功率达到99.78%以上,明显优于已有方案,所提验证方法简单可靠。

  16. Total Mini-Mental State Examination score and regional cerebral blood flow using Z score imaging and automated ROI analysis software in subjects with memory impairment

    International Nuclear Information System (INIS)

    Ikeda, Eiji; Shiozaki, Kazumasa; Takahashi, Nobukazu; Togo, Takashi; Odawara, Toshinari; Oka, Takashi; Inoue, Tomio; Hirayasu, Yoshio

    2008-01-01

    The Mini-Mental State Examination (MMSE) is considered a useful supplementary method to diagnose dementia and evaluate the severity of cognitive disturbance. However, the region of the cerebrum that correlates with the MMSE score is not clear. Recently, a new method was developed to analyze regional cerebral blood flow (rCBF) using a Z score imaging system (eZIS). This system shows changes of rCBF when compared with a normal database. In addition, a three-dimensional stereotaxic region of interest (ROI) template (3DSRT), fully automated ROI analysis software was developed. The objective of this study was to investigate the correlation between rCBF changes and total MMSE score using these new methods. The association between total MMSE score and rCBF changes was investigated in 24 patients (mean age±standard deviation (SD) 71.5±9.2 years; 6 men and 18 women) with memory impairment using eZIS and 3DSRT. Step-wise multiple regression analysis was used for multivariate analysis, with the total MMSE score as the dependent variable and rCBF change in 24 areas as the independent variable. Total MMSE score was significantly correlated only with the reduction of left hippocampal perfusion but not with right (P<0.01). Total MMSE score is an important indicator of left hippocampal function. (author)

  17. Semi-automatic ROI placement system for analysis of brain PET images based on elastic model. Application to diagnosis of Alzheimer's disease

    International Nuclear Information System (INIS)

    Ohyama, Masashi; Mishina, Masahiro; Kitamura, Shin; Katayama, Yasuo; Senda, Michio; Tanizaki, Naoki; Ishii, Kenji

    2000-01-01

    PET with 18F-fluorodeoxyglucose (FDG) is a useful technique to image cerebral glucose metabolism and to detect patients with Alzheimer's disease in the early stage, in which characteristic temporoparietal hypometabolism is visualized. We have developed a new system, in which the standard brain ROI atlas made of networks of segments is elastically transformed to match the subject brain images, so that standard ROIs defined on the segments are placed on the individual brain images and are used to measure radioactivity over each brain region. We applied this methods to Alzheimer's disease. This method was applied to the images of 10 normal subjects (ages 55 +/- 12) and 21 patients clinically diagnosed as Alzheimer's disease (age 61 +/- 10). The FDG uptake reflecting glucose metabolism was evaluated with SUV, i.e. decay corrected radioactivity divided by injected dose per body weight in (Bq/ml)/(Bq/g). The system worked all right in every subject including those with extensive hypometabolism. Alzheimer patients showed markedly lower in the parietal cortex (4.0-4.1). When the threshold value of FDG uptake in the parietal lobe was set as 5 (Bq/ml)/(Bq/g), we could discriminate the patients with Alzheimer's disease from the normal subjects. The sensitivity was 86% and the specificity was 90%. This system can assist diagnosis of FDG images and may be useful for treating data of a large number of subjects; e.g. when PET is applied to health screening. (author)

  18. Investigating the Impact uf E-Learning as an Alternative for Business Education in Pharmaceutical Industry in Romania by Roi Methodology

    Directory of Open Access Journals (Sweden)

    Petruţa Blaga

    2014-08-01

    Full Text Available The capability of organizations to accumulate and apply new knowledge is a key factor in order to achieve the new competitive standards. A continuous changing diversity, to which the need of adaptation to the changes of external environment is added, speeds up the rate of development and business education. The new information and communication technologies speed up the rate of change and increase the need of education that is subject to a higher information flow. The achievements of information technology, along with changes within society, determine the creation of new paradigms for business education and training. Under these circumstances, e-learning has become one of the main educational forms of human resources in business. This research aims to measure the impact of some initiatives within human resources on an organization, market leader within pharmaceutical field, namely measuring the efficiency of business education programs concerning human resources through e-learning. Under these circumstances, the carried-out research aims to put into practice the theoretical frame of ROI (Return on Investment methodology of evaluating the business education programs concerning human resources in five stages, suggested by J. J. Phillips. The research validates theoretical data of the surveyed model and it is based on the analysis of the data gathering process within the ROI Methodology. This work shows only aspects related to the measuring of the participants` reaction towards the e-learning business education program, respectively

  19. Using Soil Conservation Strategies in the Development of Learning Activities for the Students of Roi - Et College of Agriculture and Technology

    Directory of Open Access Journals (Sweden)

    Jariya Kanchanwong

    2017-06-01

    Full Text Available The purposes of this research were 1 to study nutrient content in soil samples taken from Roi - Et College of Agriculture and Technology Campus, 2 to study the social factors, economic factors and technological factors the effect on soil conservation of Roi - Et College of Agriculture and Technology students, 3 the development of soil conservation activities Learning package efficiency of 80/80, 4 to Study and to compare the knowledge, attitudes and skills regarding soil conservation of students of Roi - Et College of Agriculture and Technology. The student activities package of learning soil conservation was enrolled by 40 people in its club. These people were selected by purposive sampling. The instruments were used in this research as follows; 1 scientific analysis, 2 social questionnaire on economic and technological factors affecting soil conservation, 3 test of knowledge about soil conservation, 4 test of attitudes about soil conservation, 5 test of skill about soil conservation. The experimental research was designed to use students as key informants. The statistics analysis was used in the research as follows: frequency, percentage, average, standard deviation, test results, assumptions which included a dependent t-test statistical at the significance level of 0.05. The results of the study were as follows: 1 The study found that the amount of soil nutrient content (N: P: K around cultivated plants in an area of converted agriculture land have the significance: Soil checks collected in plots from soil containing morning glory, chrysanthemums, marigolds, corn and cassava, and had neutral pH. 2 The results of the analysis determing the factors that affected the conservation of soil found economic factors were at a high level Social factors and technology factors were moderate thus leading the approach that has come to create of learning activities package in soil conservation. 3 The results showed that the efficiency of the manual was 83

  20. Development of Guidelines for Mentoring Internal Supervision for the Schools under Roi-Et Office of Primary Education Service Area 2

    Directory of Open Access Journals (Sweden)

    Natchana Sahunil

    2017-06-01

    Full Text Available The research aimed to 1 study the factors and indicators of mentoring internal supervision for schools, 2 study the current state and the desirable state of mentoring internal supervision for schools, and 3 study the guidelines on the operation of mentoring internal supervision for the schools under Roi-Et Office of Primary Education Service Area 2. The research was divided into 3 phases. In phase 1 the informants comprised 5 certified experts. In phase 2 the sample comprised 488 government teachers under Roi-Et Office of Primary Education Service Area 2, btained through multi-stage random sampling. In phase 3 the informants comprised school directors, school deputy directors and supervisor teachers under Roi-Et Office of Primary Education Service Area 2, totally 9 persons. The research instruments onsisted of 1 a questionnaire having the discrimination from 0.34 to 0.79 and the total reliability of 0.87, 2 a structured interview form, and 3 a suitability and feasibility assessment form for the guidelines on the operation of mentoring internal supervision. The analysis of data employed percentage, the mean and standard deviation. The results are as follows: 1. There are 4 factors of the guidelines on mentoring internal supervision for schools. They are: preparation of mentoring supervision, with 12 indicators ; management of mentoring supervision, with 12 indicators ; operation of mentoring supervision, with 14 indicators ; and evaluation of mentoring supervision, with 10 indicators, all of which had been evaluated by the experts as, on the whole, very suitable. 2. The current state of the mentoring internal supervision for schools, on the whole and factor by factor, was in the moderate level in every factor. Meanwhile, the desirable state of mentoring internal supervision for schools, on the whole, was in the high level. When considered factor by factor, the factor with the highest mean is management of mentoring supervision. The factor with

  1. Effect of scatter and attenuation correction in ROI analysis of brain perfusion scintigraphy. Phantom experiment and clinical study in patients with unilateral cerebrovascular disease

    Energy Technology Data Exchange (ETDEWEB)

    Bai, J. [Keio Univ., Tokyo (Japan). 21st Century Center of Excellence Program; Hashimoto, J.; Kubo, A. [Keio Univ., Tokyo (Japan). Dept. of Radiology; Ogawa, K. [Hosei Univ., Tokyo (Japan). Dept. of Electronic Informatics; Fukunaga, A.; Onozuka, S. [Keio Univ., Tokyo (Japan). Dept. of Neurosurgery

    2007-07-01

    The aim of this study was to evaluate the effect of scatter and attenuation correction in region of interest (ROI) analysis of brain perfusion single-photon emission tomography (SPECT), and to assess the influence of selecting the reference area on the calculation of lesion-to-reference count ratios. Patients, methods: Data were collected from a brain phantom and ten patients with unilateral internal carotid artery stenosis. A simultaneous emission and transmission scan was performed after injecting {sup 123}I-iodoamphetamine. We reconstructed three SPECT images from common projection data: with scatter correction and nonuniform attenuation correction, with scatter correction and uniform attenuation correction, and with uniform attenuation correction applied to data without scatter correction. Regional count ratios were calculated by using four different reference areas (contralateral intact side, ipsilateral cerebellum, whole brain and hemisphere). Results: Scatter correction improved the accuracy of measuring the count ratios in the phantom experiment. It also yielded marked difference in the count ratio in the clinical study when using the cerebellum, whole brain or hemisphere as the reference. Difference between nonuniform and uniform attenuation correction was not significant in the phantom and clinical studies except when the cerebellar reference was used. Calculation of the lesion-to-normal count ratios referring the same site in the contralateral hemisphere was not dependent on the use of scatter correction or transmission scan-based attenuation correction. Conclusion: Scatter correction was indispensable for accurate measurement in most of the ROI analyses. Nonuniform attenuation correction is not necessary when using the reference area other than the cerebellum. (orig.)

  2. L'exemple d'un décor religieux dans le nord de la France : Bruno Chérier (1817-1880 et Notre-Dame-des-Anges de Tourcoing

    Directory of Open Access Journals (Sweden)

    Catherine Guillot

    2012-04-01

    Full Text Available Ami et modèle du sculpteur Jean-Baptiste Carpeaux, Bruno Chérier (1817 Valenciennes, 1880 Paris se consacre à partir de la fin des années 1850 jusqu'à sa mort au décor religieux dans le nord de la France. Devenu en 1852 professeur aux écoles académiques de Tourcoing, il répond aux commandes les plus variées dans le domaine de l'art religieux. Ainsi, sa participation au décor de l'église Notre-Dame-des-Anges de Tourcoing est exemplaire de la diversité de ses contributions : chemin de croix, cartons de vitraux, peintures ornementales illusionnistes. Cette église constitue en outre dans le Nord un des rares témoignages conservé presque intégralement de l'art religieux dans la seconde moitié du XIXe siècle. La collaboration de Chérier à ce chantier témoigne d'un statut de l'artiste sous le Second Empire, éloigné de l'image romantique du créateur libre dont est redevable le mythe constitué autour de la figure de Carpeaux.Les auteurs préparent une étude globale de l'œuvre de Bruno Chérier et de son rôle auprès de Carpeaux.

  3. IntroductionLa parole des rois à la fin du Moyen Âge : les voies d’une enquête

    Directory of Open Access Journals (Sweden)

    Stéphane PÉQUIGNOT

    2007-10-01

    Full Text Available El artículo sugiere algunas propuestas para una investigación general sobre el hablar de los reyes a finales de la Edad Media. Basándose en un estado de la cuestión para el caso de la Corona de Aragón, se indaga la inscripción del hablar de los reyes en distintas temporalidades imbricadas entre sí. La transcripción de las palabras resulta de un proceso complejo, la « fábrica de la palabra », cuyos mecanismos y huellas son objeto de estudio. Por otra parte, las representaciones del hablar de los reyes hacen a menudo referencia a unos modelos traídos del pasado, a veces se dirigen a un público futuro, mientras testimonian también su necesaria adaptación a las circunstancias de cada momento. Estos « actas reales de palabra », así como los « estilos expresivos » que contribuyen a forjar, se examinan en la secunda parte del artículo. Finalmente, el tiempo dedicado o dejado a las palabras reales participa de las evoluciones a largo plazo de las relaciones a lo escrito, de los regímenes políticos y de su forma de legitimación ; constituye un modo de comunicación político importante, un recurso y, también, una toma de riesgo para el poder y la autoridad monarquica.L’article invite à une enquête générale sur la parole des rois à la fin du Moyen Âge et en esquisse plusieurs voies possibles. À l’aide d’un état de la question sur la couronne d’Aragon, c’est l’inscription de la parole des rois dans différentes temporalités imbriquées qui est visée. Sa transcription même résulte d’un processus complexe, la « fabrique de la parole », dont mécanismes et traces sont examinés. D’autre part, les représentations de la parole des rois renvoient souvent à des modèles du passé, visent parfois un public futur tout en témoignant aussi d’une nécessaire adaptation aux circonstances présentes. Ces « actes royaux de parole » et les « styles expressifs » qu’ils contribuent à consolider

  4. Evaluation of bone involvement in patients with Gaucher disease: a semi-quantitative magnetic resonance imaging method (using ROI estimation of bone lesion) as an alternative method to semi-quantitative methods used so far.

    Science.gov (United States)

    Komninaka, Veroniki; Kolomodi, Dionysia; Christoulas, Dimitrios; Marinakis, Theodoros; Papatheodorou, Athanasios; Repa, Konstantina; Voskaridou, Ersi; Revenas, Konstantinos; Terpos, Evangelos

    2015-10-01

    The aim of this study was to evaluate bone involvement in patients with Gaucher disease (GD) and to propose a novel semi-quantitative magnetic resonance imaging (MRI) staging. MRI of the lumbar spine, femur, and tibia was performed in 24 patients with GD and 24 healthy controls. We also measured circulating levels of C-C motif ligand-3 (CCL-3) chemokine, C-telopeptide of collagen type-1 (CTX), and tartrate-resistant acid phosphatase isoform type-b (TRACP-5b). We used the following staging based on MRI data: stage I: region of interest (ROI) 1/2 of normal values and bone infiltration up to 30%; stage II: ROI 1/3 of normal values and bone infiltration from 30 to 60%; stage III: ROI 1/4 of normal values and bone infiltration from 60% to 80%; and stage IV: detection of epiphyseal infiltration, osteonecrosis and deformity regardless of the ROI's values. All but two patients had abnormal MRI findings: 9 (37.5%), 6 (25%), 3 (12.5%), and 4 (16.7%) had stages I-IV, respectively. Patients with GD had elevated chitotriosidase, serum TRACP-5b, and CCL-3 levels (P < 0.001). We propose an easily reproducible semi-quantitative scoring system and confirm that patients with GD have abnormal MRI bone findings and enhanced osteoclast activity possibly due to elevated CCL-3. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  5. Comparison of a zero-profile anchored spacer (ROI-C) and the polyetheretherketone (PEEK) cages with an anterior plate in anterior cervical discectomy and fusion for multilevel cervical spondylotic myelopathy.

    Science.gov (United States)

    Liu, Yijie; Wang, Heng; Li, Xuefeng; Chen, Jie; Sun, Han; Wang, Genlin; Yang, Huilin; Jiang, Weimin

    2016-06-01

    We aimed to analyze the clinical and radiographic efficacy of a new zero-profile anchored spacer called the ROI-C in anterior discectomy and fusion (ACDF) for multilevel cervical spondylotic myelopathy (MCSM). We retrospectively reviewed the clinical, radiological outcomes and complications of multilevel ACDF with the ROI-C or with the polyetheretherketone (PEEK) cages with an anterior plate. From April 2011 to April 2014, 60 patients with MCSM were operated on using ACDF, with the ROI-C in 28 patients and PEEK cages with an anterior plate in 32 patients. The operative time, intraoperative blood loss, and clinical and radiological results were compared between the ROI-C group and the cage-plate group. The mean follow-up time was 23.8 ± 6.6 months, ranging from 12 to 36 months. At the first month and the last follow-up, the neck disability index (NDI) scores were decreased, and the Japanese Orthopedic Association (JOA) scores were significantly increased, compared with the presurgical measurements in both groups. There were no significant differences in NDI scores or JOA scores between the two groups (P > 0.05), but there were significant differences in the operation time, blood loss and the presence of dysphagia (P PEEK cage with an anterior plate.

  6. « Les rois de Ségou » : De l'épopée à la série télévisée | Tamari ...

    African Journals Online (AJOL)

    Les Rois de Ségou (“The Kings of Segu”) is a television series from Mali directed by ... Together with another film released at about the same time, Samanyana Basi (“Basi from ... dialogues are laden with adages, thus approximating the characteristics of bardic speech. ... EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT

  7. Maintenance of water uptake and reduced water loss contribute to water stress tolerance of Spiraea alba Du Roi and Spiraea tomentosa L.

    Science.gov (United States)

    Stanton, Kelly M; Mickelbart, Michael V

    2014-01-01

    Two primarily eastern US native shrubs, Spiraea alba Du Roi and Spiraea tomentosa L., are typically found growing in wet areas, often with standing water. Both species have potential for use in the landscape, but little is known of their environmental requirements, including their adaptation to water stress. Two geographic accessions of each species were evaluated for their response to water stress under greenhouse conditions. Above-ground biomass, water relations and gas exchange were measured in well-watered and water stress treatments. In both species, water stress resulted in reduced growth, transpiration and pre-dawn water potential. However, both species also exhibited the ability to osmotically adjust to lower soil water content, resulting in maintained midday leaf turgor potential in all accessions. Net CO2 assimilation was reduced only in one accession of S. alba, primarily due to large reductions in stomatal conductance. S. tomentosa lost a larger proportion of leaves than S. alba in response to water stress. The primary water stress tolerance strategies of S. alba and S. tomentosa appear to be the maintenance of water uptake and reduced water loss.

  8. Groundwater movement on a Low-lying Carbonate Atoll Island and its Response to Climatic and Sea-level Fluctuations: Roi Namur, Republic of the Marshall Islands

    Science.gov (United States)

    Oberle, F. J.; Swarzenski, P. W.; Storlazzi, C. D.

    2017-12-01

    Atoll islands, most of which only average 1-2 meters above today's sea level, provide a tremendous natural laboratory in which to study and better understand the intensifying impacts of high rates of sea-level rise on tropical reef-lined islands. These islands are unique and on the frontline of negative societal impacts due to their geologic structure and limited water supply. Groundwater resources on atolls are typically minimal due to the low elevation and small surface area of the islands and are also subject to recurring droughts, and more frequent, storm-driven seawater overwash events. Although groundwater is the principal means of freshwater storage on atoll islands and is a major factor in determining the overall sustainability of island settlements, hydrological data on how an aquifer will response to changes in sea-level rise or storm-driven overwash remain limited. Here we present high-resolution time series hydrogeological and geochemical data from a 16 month study to determine the role of an atoll's carbonate geology, land use, and atmospheric and oceanographic forcing in driving coastal groundwater exchange including submarine groundwater discharge on the island of Roi-Namur on Kwajalein Atoll in the Republic of the Marshall Islands. This information can provide new estimates on the recovery and resilience of coastal groundwater resources on similar islands that are expected to experience climate change-driven perturbations.

  9. Un inventaire phytosociologique des dunes à la côte méditerranéenne française entre carnon et le grau du roi (département de l’hérault)

    NARCIS (Netherlands)

    Hekking, W.H.A.

    1959-01-01

    Dans la région des dunes et des bas-fonds située à une distance de 3.6 à 5.3 kilomètres de Carnon au Grau du Roi, entre l’Etang de Mauguio et la Mer méditerranéenne et dans le département de l’Hérault on peut constater deux suites progressives des associations phytosociologiques : A) LA VÉGÉ TATION

  10. dame poolest sinimustvalge / Kristel Kossar

    Index Scriptorium Estoniae

    Kossar, Kristel

    2012-01-01

    Edukatest ja andekatest noortest venelastest Eestis - jalgpallur Konstantin Vassiljev, internetiäri looja ja poliitik Andrei Korobeinik, helilooja Tatjana Kozlova, Tallinna Ülikooli Katariina kolledži direktor Dimitri Mironov, sõjaajaloolane, õpetaja ja Tallinna Ülikooli doktorant Igor Kopõtin. Nende arvamused Eestist ja venelaste osalusest Eesti ühiskonnaelus

  11. Cannes südames / Mirkka Maikola

    Index Scriptorium Estoniae

    Maikola, Mirkka

    2011-01-01

    Nicolas Winding Refni filmist "Drive" (USA 2011). Lisaks tegid oma pingerea Cannes´is nähtud filmidest Eesti filmikriitikud ja -tegijad Jaan Ruus, Jaak Lõhmus, Tristan Priimägi, Jaak Kilmi, Andris Feldmanis, Maria Ulfsak-Šeripova ja Laura Talvet

  12. Birma südames / Silver Meikar

    Index Scriptorium Estoniae

    Meikar, Silver, 1978-

    2007-01-01

    Reformierakonna liige käis Prahas toimunud Birma konverentsil, kus räägiti Birma militaarrežiimi kuritegudest ja kirjutati alla avaldusele, mis soovib tugevdada Euroopa panust birmalaste aitamiseks

  13. Procès inquisitorial contra el castellà d'Amposta Fra Pedro Roiç de Moros a la cúria pontificia del papa Benet XIII (I414-1418

    Directory of Open Access Journals (Sweden)

    Alanyà i Roig, Josep

    2002-06-01

    Full Text Available The Arxiu de la Corona d'Aragó in Barcelona houses the original commital proceedings instituted by a court of cardinals set up by pope Benedict XIII in the year 1414 and teh trial itself of the lord of Amposta, Fra Pedro Roiç de Moros, knight of the Order of St. John of Jerusalem, who had been charged with indictable offences—concubinage, robbery, housing apostates, oath breaking and counterfeiting money, mismanagement of the Castlery's assets, excesses against his vassals, wasteful use of assets, dereliction and property abandonment— of which he was found guilty, and thereafter sentenced to losing the dignity of his lordship. Roiç de Moros appealed to the Council of Constance as well as to pope Martin V. It would be to no avail. Roiç de Moros paid a very high price for choosing to support count Jaume d'Urgell and deciding to oppose Ferran dAntequera and the policies of pope Benedict XIII. The follow up and analysis of the court´s records are very interesting for their human variety and interesting informations about fortresses, houses, barns, treaures and services there were in different locations of the Castlery of Amposta, such as Batea, Gandesa, Miravet, Ulldecona, Ascó and other towns and villages along the Ribera d´Ebre. The whole criminal prosecution bears a very peculiar historic interest mainly because the protagonists, the court procedures, and their causes are the link between the Interregnum in the Aragonese Crown and the fìnal days of the Western Schism.

    A l'Arxiu de la Corona d'Aragó de Barcelona es conserva el procés original instruït per un tribunal de cardenals creat pel papa Benet XIII l'any 1414 per jutjar el Castella d'Amposta, l'hospitaler Fra Pedro Roiç de Moros, acusat de crims greus —concubinat, bandositats, recepció d’apòstates, perjuri i fabricació de moneda falsa, mala administració dels bens de la Castellania, comissió d'excessos contra els seus vassalls, dilapidado de bens i abando

  14. Effects of Land-Use Change and Managed Aquifer Recharge on Geochemical Reactions with Implications for Groundwater Quantity and Quality in Atoll Island Aquifers, Roi-Namur, Republic of the Marshall Islands

    Science.gov (United States)

    Hejazian, M.; Swarzenski, P. W.; Gurdak, J. J.; Odigie, K. O.; Storlazzi, C. D.

    2015-12-01

    This study compares the hydrogeochemistry of two contrasting atoll groundwater systems in Roi-Namur, Republic of the Marshall Islands. Roi-Namur houses a U.S. Department of Defense military installation and presents an ideal study location where a human impacted aquifer is co-located next to a natural aquifer as part of two artificially conjoined atoll islands. The hydrogeology and geochemistry of carbonate atoll aquifers has been well studied, particularly because of its small, well-defined hydrologic system that allows for relatively precise modeling. However, it is unknown how changes in land-use/land cover and managed aquifer recharge (MAR) alters natural geochemical processes in atoll aquifers. A better understanding of this has implications on groundwater quantity and quality, carbonate dissolution, and best aquifer management practices in the context of rising sea level and saltwater intrusion. Roi has been heavily modified to house military and civilian operations; here, lack of vegetation and managed recharge has increased the volume of potable groundwater and affected the geochemical processes in the freshwater lens and saltwater transition zone. Namur is heavily vegetated and the hydrogeology is indicative of a natural atoll island. A suite of monitoring wells were sampled across both island settings for major ions, nutrients, trace elements, DOC/DIC, δ13C and δ18O/2H isotopes. By modeling geochemical reactions using a conservative mixing approach, we measure deviations from expected reactions and compare the two contrasting settings using derived geochemical profiles through a wide salinity spectrum. Results indicate that groundwater on Namur is more heavily depleted in δ13C and has greater dissolved inorganic carbon, suggesting higher microbial oxidation and greater dissolution within the carbonate aquifer. This suggests MAR and reduction of vegetation makes the groundwater supply on atoll islands more resilient to sea level rise.

  15. Efektivitas Penambahan Getah Pelepah Pisang Kepok (Musa mcuminata balbisianacolla pada Pigmen Kunyit (Curcuma domestica valet untuk Mengatasi Kelunturan Kain

    Directory of Open Access Journals (Sweden)

    Junaedi Harmiansyah

    2014-05-01

    Full Text Available Penambahan volume getah pisang kepok pada pigmen alami kunyit dalam mempertahankan warna dari kelunturan pada kain dilakukan dengan perbandingan pemberian volume getah pisang kepok : pigmen kunyit (80%:20%, 70%:30%, 60%:40%, 50%:50%, 40%:60%, 30%:70%. Efektifitas penambahan getah pelepah pisang Kepok diperoleh dari hasil karakterisasi material dengan mencari nilai trasmitansi yang dihasilkan cahaya laser yang dikenakan luxmeter melalui limbah pencucian sabun dengan detergen dan material kain, sehingga di dapatkan nilai transmitasi terbaik sebesar 0.68, di hasilkan dari penambahan getah pelepah pisang kepok sebesar 40%. Getah pisang kapok mampu sebagai pengikat pigmen alami kunyit, dalam mempertahankan kelunturan pada kain.

  16. Diabetes and Obesity as Independent Risk Factors for Osteoporosis: Updated Results from the ROIS/EMEROS Registry in a Population of Five Thousand Post-Menopausal Women Living in a Region Characterized by Heavy Environmental Pressure.

    Science.gov (United States)

    Neglia, Cosimo; Argentiero, Alberto; Chitano, Giovanna; Agnello, Nadia; Ciccarese, Roberta; Vigilanza, Antonella; Pantile, Valerio; Argentiero, Domenico; Quarta, Raffaele; Rivezzi, Matteo; Di Tanna, Gian Luca; Di Somma, Carolina; Migliore, Alberto; Iolascon, Giovanni; Gimigliano, Francesca; Distante, Alessandro; Piscitelli, Prisco

    2016-11-01

    Objectives : We aimed to analyze bone mineralization and the effect of different risk factors for osteoporosis in postmenopausal women. Methods : We found 4909 postmenopausal subjects within ≥10,000 records from the ROIS/EMEROS (Ionian and Salento Osteoporosis Registry/Euro Mediterranean Registry of Osteoporosis) registry, a population study carried out in an area characterized by heavy environmental pressure between Brindisi and Taranto from 2009 to 2016. All subjects were assessed via phalangeal quantitative ultrasound (QUS) to evaluate their bone mineralization (assessed via amplitude dependent speed of sound (AD-SoS)) and the association between demineralization and the presence of other conditions or risk factors. Results : Mean age was 64 ± 9.5 years and mean body mass index (BMI) was 28.7 ± 3.5 kg/m². Pearson correlation analyses revealed a negative association between bone mineralization (AD-SoS) and BMI ( p osteoporosis (adjusted for age, physical activity, and the use of drugs known to increase the risk of fractures) in subjects with diabetes and obesity: 1.39 (confidence interval (CI): 1.05-1.83) and 1.46 (CI: 1.20-1.78), respectively. A statistically significant linear trend of higher ORs of osteoporosis was found for increasing values of BMI. Conclusions : Our study confirmed the high impact of obesity and type 1 and type 2 diabetes on osteoporosis.

  17. Maximizing your Process Improvement ROI through Harmonization

    Science.gov (United States)

    2008-03-01

    ISO 12207 ) provide comprehensive guidance on what system and software engineering processes are needed. The frameworks of Six Sigma provide specific...reductions. Their veloci-Q Enterprise integrated system, includes ISO 9001, CMM, P-CMM, TL9000, British Standard 7799, and Six Sigma. They estimate a 30...at their discretion. And, they chose to blend process maturity models and ISO standards to support their objective regarding the establishment of

  18. Academic ROI: What Does the Most Good?

    Science.gov (United States)

    Levenson, Nathan

    2012-01-01

    The author, who has served as a school board member and district superintendent, advocates that school districts use an academic return on investment approach to evaluate and make decisions about spending, specifically in special education. This approach requires that schools formally evaluate all programs, efforts, and strategies by multiple…

  19. Kaks intervjuud Sophie Roisiga / Sophie Rois

    Index Scriptorium Estoniae

    Rois, Sophie, 1961-

    2010-01-01

    Saksa Volksbühne truppi näitleja Sophie Roisi mõtteid teatrist ja näitlejatööst. Intervjuu on pärit ajalehtedest Frankfurter Allgemeine Zeitung 2010 aasta jaanuari numbrist ja Planet Interview 2004 aasta juuli numbrist

  20. Diabetes and Obesity as Independent Risk Factors for Osteoporosis: Updated Results from the ROIS/EMEROS Registry in a Population of Five Thousand Post-Menopausal Women Living in a Region Characterized by Heavy Environmental Pressure

    Directory of Open Access Journals (Sweden)

    Cosimo Neglia

    2016-11-01

    Full Text Available Objectives: We aimed to analyze bone mineralization and the effect of different risk factors for osteoporosis in postmenopausal women. Methods: We found 4909 postmenopausal subjects within ≥10,000 records from the ROIS/EMEROS (Ionian and Salento Osteoporosis Registry/Euro Mediterranean Registry of Osteoporosis registry, a population study carried out in an area characterized by heavy environmental pressure between Brindisi and Taranto from 2009 to 2016. All subjects were assessed via phalangeal quantitative ultrasound (QUS to evaluate their bone mineralization (assessed via amplitude dependent speed of sound (AD-SoS and the association between demineralization and the presence of other conditions or risk factors. Results: Mean age was 64 ± 9.5 years and mean body mass index (BMI was 28.7 ± 3.5 kg/m2. Pearson correlation analyses revealed a negative association between bone mineralization (AD-SoS and BMI (p < 0.001. By using multivariate logistic regression analysis, we observed significant values of odds ratios (ORs of osteoporosis (adjusted for age, physical activity, and the use of drugs known to increase the risk of fractures in subjects with diabetes and obesity: 1.39 (confidence interval (CI: 1.05–1.83 and 1.46 (CI: 1.20–1.78, respectively. A statistically significant linear trend of higher ORs of osteoporosis was found for increasing values of BMI. Conclusions: Our study confirmed the high impact of obesity and type 1 and type 2 diabetes on osteoporosis.

  1. Seawater-overwash impacts on freshwater-lens water supplies of low-lying oceanic islands: example from Roi-Namur Island, Kwajalein Atoll, Republic of the Marshall Islands

    Science.gov (United States)

    Voss, C. I.; Gingerich, S. B.

    2015-12-01

    Low-lying oceanic islands host thin freshwater lenses subject to long-term aquifer salinization by seawater overwash. The lens is often the sole-source water supply for inhabitants. As maximum elevation for these islands is only a few meters above sea level, overwash can occur during high tides and storm surges. Sea level rise due to climate change will make overwash events even more common. The thin freshwater lenses, a few meters thick, are underlain by seawater, so pumping must be done carefully, often with horizontal skimming wells. Even a small amount of downward seawater infiltration from an overwash event can render the water supply non-potable. Where permeability is high, seawater infiltrates quickly, but seawater that infiltrates lower-permeability zones may remain for many months causing groundwater to remain non-potable, leaving residents without a reliable freshwater source. Initial post-overwash salinization is driven by the higher density of the invading saltwater, which sinks and mixes into the fresher water in potentially-complex patterns determined by: distribution of flooding and post-flood ponding, locations of permeable paths, and the inherently complex flow fields generated when fluid of higher density overlies lower-density fluid. The flow patterns cannot generally be measured or predicted in detail. This study develops basic understanding of overwash salinization processes impacting water supply on low-level islands, using a rare example of a monitored seawater overwash event that occurred in December 2008 at Roi-Namur Island in Kwajalein Atoll, Republic of the Marshall Islands, in which the salinity evolution of well water was measured. Due to typical lack of field data on such islands, a set of plausible alternative simulation-model descriptions of the hydrogeology and overwash event are created for analysis of the monitored salinization and recovery. Despite inability to know the 'true and complete' description of the event and the

  2. Festival Euroopa südames / Jaan Ruus

    Index Scriptorium Estoniae

    Ruus, Jaan, 1938-2017

    2004-01-01

    Karlovy Vary festivalist. Kuldgloobuse sai itaallaste Andrea ja Antonio Frazzi "Lastelugu" ("Certi bambini"), parima režii preemia sai hispaanlane Xavier Bermudez ("Leon ja Olvido"), naiskõrvalosa preemia anti Karen Lise Mynsterile ( taanlase Paprika Steeni "Tagajärjed"). Ka ungari filmist "Pärast eelmist päeva" (režii Attila Janisch), prantsuse "Kooripoisid" (režii Christophe Barratier), india "Vihmamantel" (režii Rituparno Ghosh), vene "Minu kasuvend Frankenstein" (Valeri Todorovski)

  3. Troopiline paradiis otse Euroopa südames / Riina Luik

    Index Scriptorium Estoniae

    Luik, Riina, 1962-

    2010-01-01

    Berliini-Dresdeni kiirtee ääres asuvast troopilisest veekeskusest Tropical Islands, mis pakub siseruumis rannapuhkust ja rõõmustab puhkajat ookeani, vihmametsa, kämpinguala, kohvikute, jõusaali, saunade, erinevate meelelahutusetendustega jne

  4. Eesti Vabariik südames / Tõnis Lukas

    Index Scriptorium Estoniae

    Lukas, Tõnis, 1962-

    2006-01-01

    Ilmunud ka: Põhjarannik, Vooremaa 2. veebr. lk. 2,6, Hiiu Leht, Sakala 3. veebr. lk. 2, Pärnu Postimees 4. veebr. lk. 19, Järva Teataja 7. veebr. lk. 2, Meie Maa 10. veebr. lk. 2, Valgamaalane 14. veebr. lk. 2, Nädaline 18. veebr. lk. 2, Lõunaleht 23. veebr. lk. 2. 2. veebr. tähistatakse Tartu rahu aastapäeva ja 24. veebr. Eesti Vabariigi aastapäeva. Autor leiab, et just sel ajal on eriliselt põhjust mõelda noorte isamaalisele kasvatusele

  5. Shotlane manchesterlaste südames / Oliver Lomp

    Index Scriptorium Estoniae

    Lomp,Oliver

    2008-01-01

    Vt. ka Postimees : na russkom jazõke 13. mai, lk. 13. Manchester Unitedѫs 21 aastat peatreenerikohustusi täitnud shotlane Alex Ferguson on selle aja jooksul Inglismaa klubijalgpallis võitnud kõik, mis võimalik. Tänavune hooaeg jääb tal aga sellel ametipostil viimaseks

  6. dames on armastuse kodu / Lembit Peterson, Marius Peterson

    Index Scriptorium Estoniae

    Peterson, Lembit, 1953-

    2006-01-01

    Theatrumis tuleb lavale Karol Wojtyla (Paavst Johannes Paulus II) kirjutatud näidend "Juveliiri poe ees". Lavastuses osaleb pea kogu perekond Petersonid. Laura, Marius, Mare, Maria ja Lembit Peterson endast ja peresidemetest

  7. Attitudes toward Students with Disabilities at Notre Dame University, Lebanon

    Science.gov (United States)

    Van Loan, Amira

    2013-01-01

    Disability issues in Lebanon are not being addressed on a national scale. Among the myriad of underrepresented groups, individuals with disabilities in Lebanon continue to be marginalized in education, employment, health care, politics, and all aspects of society. The focus of this project investigation was to identify the attitudes of faculty…

  8. Sadama südames õilmitses ebaseaduslik retseptivabrik / Mari Kodres

    Index Scriptorium Estoniae

    Kodres, Mari

    2008-01-01

    Tervishoiuamet tühistas OÜ Gradus Gravis tegevusloa, mis väljastas valdavalt Soome kodanikele psühhotroopsete ravimite retsepte. Kliinik on osutanud tervishoiuteenust ka pärast tegevuskohaks olnud ruumide üleandmist uuele üürnikule. OÜ Gradus Gravis juhatuse liikme Andre Ernesaksa arvamus. Lisa: Eesti tervishoid halvas valguses

  9. Au bonheur des dames  The Ladies’ Paradise

    Directory of Open Access Journals (Sweden)

    Corinne François-Denève

    2011-03-01

    Full Text Available Contre toute attente, l’ouvrage de Lisa Appignanesi, Mad, Bad and Sad, Women and the Mind Doctors (2008 ne recense que peu de cas de « criminelles ». C’est cette béance qui est ici interrogée : est-elle le fait du discours d’Appignanesi, qui propose une vision « féministe » de l’histoire de la psychiatrie, vision qui par définition ne laisse pas place aux « délinquantes » ? Ou est-ce la criminalité féminine elle-même qui reste en marge des analyses de la criminologie et du droit traditionnels, car la femme « criminelle » ne peut être que « folle » ?Surprisingly, Lisa Appignanesi makes little reference to female criminals in Mad, Bad and Sad, Women and the Mind Doctors (2008. That omission is interrogated here.  Is it an artifact of Appignanesi’s discourse, which entails a “feminist” vision of the history of psychiatry – a vision that by definition leaves no place for “delinquent” women? Or is it feminine criminality itself that remains in the margins of traditional legal and criminological analysis – since in those terms, the “criminal” woman cannot but be insane?  

  10. Blondid mutandid vallutasid koopameeste südame / Kaivo Kopli

    Index Scriptorium Estoniae

    Kopli, Kaivo

    2006-01-01

    Sel nädalal teadusajakirjas Evolution and Human Behaviour ilmunud uuringus tõdetakse, et blondiinide võidukäik sai alguse jääaja lõppedes. Ühtlasi on teadlased veendunud, et heledajuukselised inimesed ilmusid mingi geneetilise muundumise tagajärjel

  11. White and Dark Stranger Kings: Kupang in the Early Colonial Era Etrangers rois – blancs et bruns : Kupang aux débuts de l’époque coloniale

    Directory of Open Access Journals (Sweden)

    Hans Hägerdal

    2013-01-01

    Full Text Available The article explores the common Southeast Asian epistemological theme of a “stranger king” as an ordering principle in a polity, a principle that was also relevant in a colonial context. The case studied here is the Dutch colonial post in Kupang, West Timor, in the VOC period, 1653-1800. The Dutch fort was surrounded by five princedoms, which stood in the relation of subordinate allies to the VOC. Four of the five groups had migrated to Kupang due to pressure from the Portuguese and their clients, which dominated the rest of Timor. Arenas of interaction were developed, whereby the elites of the five princedoms deliberated with the Dutch authorities on a regular basis. Their attachment to the Dutch colonial apparatus was actually never broken until the twentieth century, in spite of several reasons for discontent. The article argues that the peculiar situation on Timor, where the five allies were under siege from the clients of the Portuguese, underpinned a system in which the colonial masters were seen as legitimate “princes”, ultimate referents of authority whose very strange-ness enabled them to hold the system in place.Cet article explore le thème épistémologique, commun en Asie du Sud-Est, de l’« étranger-roi » comme principe d’organisation dans un Etat, un principe également pertinent dans le contexte colonial. Il examine le poste colonial hollandais de Kupang à Timor occidental pendant la période de la VOC (1653-1800. Le fort hollandais était entouré de cinq principautés, subordonnées à la VOC dans leur alliance avec celle-ci. Quatre de ces groupes avaient émigré à Kupang à cause de la pression des Portugais et de leurs alliés, qui contrôlaient le reste de l’île. Des plates-formes d’interaction furent développées, dans lesquelles les élites des cinq principautés discutaient régulièrement avec les autorités hollandaises. Leurs liens avec l’appareil colonial ne furent en fait jamais rompus

  12. dātu ša šarri. La « loi du roi »dans la Babylonie achéménide et séleucide dātu ša šarri, The “Law of the King” in Achaemenid and Seleucid Babylonia

    Directory of Open Access Journals (Sweden)

    Sophie Démare-Lafont

    2009-06-01

    Full Text Available Cet article examine le champ sémantique de l’expression dātu ša šarri, « loi du roi », formée sur un terme d’origine vieux-perse (data. La dizaine d’occurrences d’époques achéménide et séleucide montre que la « loi du roi »désigne un mode d’élaboration de la norme issu de la pratique judiciaire du souverain, progressivement compilée pour former un corps de règles invoquées dans les contrats. Ce procédé de création de la loi et de fabrication des recueils législatifs rappelle celui du rescrit romain.This article investigates the meaning of the formula dātu ša šarri, “law of the king”, using the akkadian dātu based on the old Persian word dāta. The ten Achaemenid and Seleucid occurrences of this formula suggest a process of creation of legal rules comparable to the Roman rescript: the legal standard dātu ša šarri derives from the judicial practice of the king, whose decisions were progressively compiled in order to create a body of regulations which were invoked in contracts.

  13. « Comment se comporter avec un roi chrétien » : l’ouvrage perdu d’Abū l-Ḥasan ʿAlī Ibn al-Qaṭṭān et les enjeux du cérémonial almohade

    Directory of Open Access Journals (Sweden)

    Mehdi Ghouirgate

    2014-05-01

    Full Text Available Cet article propose de revenir sur un document aussi exceptionnel que méconnu. Il s’agit du résumé d’un ouvrage (maqāla, aujourd’hui perdu, intitulé « Comment se comporter avec un roi chrétien », et que l’on trouve dans le dictionnaire bio-bibliographique d’Ibn ʿAbd al-Malik. Cette maqāla fut rédigée, par un homme de lettres au service des Almohades, Abū l-Ḥasan ʿAlī Ibn al-Qaṭṭān (m. 1231. C’est la seule source qui ait consigné des indications sur la conduite que devait adopter le souverain lors d’une cérémonie, en présence d’un prince étranger. À ce titre, on y trouve des renseignements essentiels sur le cérémonial almohade ainsi que sur les dilemmes que devaient résoudre le calife : d’un point de vue idéologique, il ne pouvait souffrir aucun autre pouvoir, mais l’impossibilité de mener des opérations d’envergure sur deux fronts à la fois l’amena à composer avec le roi du León. De même, c’est le seul document à avoir fait état d’une divergence de point de vue entre le calife et les intellectuels organiques du système, les Ṭalaba. Ce différend met en lumière des tensions latentes au sommet entre divers serviteurs de l’État, qui n’avaient pas la même forme de légitimité, ni tout à fait les mêmes intérêts.

  14. Measuring Training ROI: Silver Bullet or Urban Legend

    Science.gov (United States)

    2008-06-01

    TSRD Doc NAWC Training Systems Division. Training Systems Requirements Analysis Webpage, 30 August 2007 Training System Plan Engineering Specs...QUESTIONNAIRES PERFORMANCE CONTRACTING MONITORING MEASURES OF EFFECTIVENESS 1-X: MSN EFFECTIVENESS (OUTPUT-ORIENTED) e.g.: SAFETY ENVIROMENTAL IMPACT...All costs required to research and develop a system before committing it to production ( engineering design, manufacturing of test articles, testing

  15. Critical Business Requirements Model and Metrics for Intranet ROI

    OpenAIRE

    Luqi; Jacoby, Grant A.

    2005-01-01

    Journal of Electronic Commerce Research, Vol. 6, No. 1, pp. 1-30. This research provides the first theoretical model, the Intranet Efficiency and Effectiveness Model (IEEM), to measure intranet overall value contributions based on a corporation’s critical business requirements by applying a balanced baseline of metrics and conversion ratios linked to key business processes of knowledge workers, IT managers and business decision makers -- in effect, closing the gap of understanding...

  16. Return on Investment (ROI) Framework Case Study: CTH.

    Energy Technology Data Exchange (ETDEWEB)

    Corro, Janna L. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2018-02-01

    CTH is a Eulerian code developed at Sandia National Laboratories capable of modeling the hydrodynamic response of explosives, liquids, gases, and solids. The code solves complex multi-dimensional problems characterized by large deformations and strong shocks that are composed of various material configurations. CTH includes models for material strength, fracture, porosity, and high explosive detonation and initiation. The code is an acronym for a complex series of names relating to its origin. A full explanation can be seen in Appendix A. The software breaks penetration simulations into millions of grid-like “cells”. As a modeled projectile impacts and penetrates a target, progressively smaller blocks of cells are placed around the projectile, which show in detail deformations and breakups. Additionally, the code is uniquely suited to modeling blunt impact and blast loading leading to human body injury.

  17. Cone-beam ROI reconstruction using the laplace operator

    Energy Technology Data Exchange (ETDEWEB)

    Dennerlein, Frank [Siemens AG, Nuernberg (Germany). Healthcare Sector

    2011-07-01

    A novel filtered-backprojection (FBP) algorithm for 3D reconstruction in the circular geometry is presented. This algorithm achieves data filtering in two steps. The first step is a 2D Laplace filtering of the projections, which acts locally on the data and can thus be carried out accurately even in presence of (transaxial) data truncation. In a second step, a nonlocal 2D filtering operation is applied on the outcome of step 1. First simulation studies show that our algorithm is implicitly more resistant to truncated projections than many standard FBP methods without the need to involve an explicit data extrapolation scheme. (orig.)

  18. Robot, Eye, and ROI: Technology Transformation Versus Technology Transfer

    OpenAIRE

    Sacerdoti, Earl

    1985-01-01

    I want to discuss two aspects of technology transfer. First I've been asked to present a brief perspective on how AI is fitting into a particular application area: Industrial automation. Then I want to give my two cents worth on AI as a business activity.

  19. ROI Analysis of the System Architecture Virtual Integration Initiative

    Science.gov (United States)

    2018-04-01

    errors that are detected during testing. The percentages reflect the lower defect- leakage rates of 2.5% into operation for safety-critical systems...Introduced and Detected Defects 16 Table 7: Defect-Removal Cost, Given the Phase of Origin 16 Table 8: Nominal Phase-Based Rework Costs and Percentages...show that detecting and removing defects are the most expensive and time-consuming parts of the work. Finding and fixing defects alone often causes

  20. Determining the Return on Investment (ROI) for Joint Training

    National Research Council Canada - National Science Library

    Nesselrode, Mark C

    2007-01-01

    .... The methodology should provide the ability for Operational level staffs to assess performance, costs, and value of training either for routine reporting or in support of certification, regardless...

  1. ROI-based DICOM image compression for telemedicine

    Indian Academy of Sciences (India)

    ground and reconstruct the image portions losslessly. The compressed image can ... If the image is compressed by 8:1 compression without any perceptual distortion, the ... Figure 2. Cross-sectional view of medical image (statistical representation). ... The Integer Wavelet Transform (IWT) is used to have lossless processing.

  2. Step-Dame Study's Purpose: Early Modern Literature and Critical Thinking

    Science.gov (United States)

    Isaacson, Emily Ruth

    2013-01-01

    Given what seems a constant barrage of criticism aimed at the academy from politicians and the public--and the great concern for buzz words like accountability and transparency--it has become fairly routine to see a defense of the humanities in opinion pieces in "Inside Higher Education," "The Chronicle of Higher Education,"…

  3. Historiografie biologie a jejich grande dame Ilse Jahnová (1922-2010)

    Czech Academy of Sciences Publication Activity Database

    Hermann, Tomáš; Šimůnek, Michal V.

    2010-01-01

    Roč. 43, č. 4 (2010), s. 249-254 ISSN 0300-4414 R&D Projects: GA ČR GPP410/10/P550 Institutional research plan: CEZ:AV0Z80630520 Keywords : Ilse Jahn * historiography of biology * history of science Subject RIV: AB - History

  4. Notre Dame Geothermal Ionic Liquids Research: Ionic Liquids for Utilization of Geothermal Energy

    Energy Technology Data Exchange (ETDEWEB)

    Brennecke, Joan F. [Univ. of Notre Dame, IN (United States)

    2017-03-07

    The goal of this project was to develop ionic liquids for two geothermal energy related applications. The first goal was to design ionic liquids as high temperature heat transfer fluids. We identified appropriate compounds based on both experiments and molecular simulations. We synthesized the new ILs, and measured their thermal stability, measured storage density, viscosity, and thermal conductivity. We found that the most promising compounds for this application are aminopyridinium bis(trifluoromethylsulfonyl)imide based ILs. We also performed some measurements of thermal stability of IL mixtures and used molecular simulations to better understand the thermal conductivity of nanofluids (i.e., mixtures of ILs and nanoparticles). We found that the mixtures do not follow ideal mixture theories and that the addition of nanoparticles to ILs may well have a beneficial influence on the thermal and transport properties of IL-based heat transfer fluids. The second goal was to use ionic liquids in geothermally driven absorption refrigeration systems. We performed copious thermodynamic measurements and modeling of ionic liquid/water systems, including modeling of the absorption refrigeration systems and the resulting coefficients of performance. We explored some IL/organic solvent mixtures as candidates for this application, both with experimentation and molecular simulations. We found that the COPs of all of the IL/water systems were higher than the conventional system – LiBr/H2O. Thus, IL/water systems appear very attractive for absorption refrigeration applications.

  5. President Arnold Rüütel siirdas Kalevipojale südame / Meelis Lainvoo

    Index Scriptorium Estoniae

    Lainvoo, Meelis

    2003-01-01

    Rakvere Teatri suvelavastuse "Kalevipoeg" viimasel etendusel osalesid Arnold ja Ingrid Rüütel ning poliitikud Tõnis Palts, Tõnis Lukas, Arvo Haug ja Tõnu Kõiv. President Arnold Rüütel pani Neerutis Sadulamäel Kalevipoja kujule viimase kivi. Skulptuuri autori Seaküla Simsoni kommentaar

  6. Conference on Low Reynolds Number Airfoil Aerodynamics, Notre Dame, IN, June 16-18, 1985, Proceedings

    Science.gov (United States)

    Mueller, T. J. (Editor)

    1985-01-01

    Topics of interest in the design, flow modeling and visualization, and turbulence and flow separation effects for low Reynolds number (Re) airfoils are discussed. Design methods are presented for Re from 50,000-500,000, including a viscous-inviscid coupling method and by using a constrained pitching moment. The effects of pressure gradients, unsteady viscous aerodynamics and separation bubbles are investigated, with particular note made of factors which most influence the size and location of separation bubbles and control their effects. Attention is also given to experimentation with low Re airfoils and to numerical models of symmetry breaking and lift hysteresis from separation. Both steady and unsteady flow experiments are reviewed, with the trials having been held in wind tunnels and the free atmosphere. The topics discussed are of interest to designers of RPVs, high altitude aircraft, sailplanes, ultralights and wind turbines.

  7. Compressible flows with periodic vortical disturbances around lifting airfoils. Ph.D. Thesis - Notre Dame Univ.

    Science.gov (United States)

    Scott, James R.

    1991-01-01

    A numerical method is developed for solving periodic, three-dimensional, vortical flows around lifting airfoils in subsonic flow. The first-order method that is presented fully accounts for the distortion effects of the nonuniform mean flow on the convected upstream vortical disturbances. The unsteady velocity is split into a vortical component which is a known function of the upstream flow conditions and the Lagrangian coordinates of the mean flow, and an irrotational field whose potential satisfies a nonconstant-coefficient, inhomogeneous, convective wave equation. Using an elliptic coordinate transformation, the unsteady boundary value problem is solved in the frequency domain on grids which are determined as a function of the Mach number and reduced frequency. The numerical scheme is validated through extensive comparisons with known solutions to unsteady vortical flow problems. In general, it is seen that the agreement between the numerical and analytical results is very good for reduced frequencies ranging from 0 to 4, and for Mach numbers ranging from .1 to .8. Numerical results are also presented for a wide variety of flow configurations for the purpose of determining the effects of airfoil thickness, angle of attack, camber, and Mach number on the unsteady lift and moment of airfoils subjected to periodic vortical gusts. It is seen that each of these parameters can have a significant effect on the unsteady airfoil response to the incident disturbances, and that the effect depends strongly upon the reduced frequency and the dimensionality of the gust. For a one-dimensional (transverse) or two-dimensional (transverse and longitudinal) gust, the results indicate that airfoil thickness increases the unsteady lift and moment at the low reduced frequencies but decreases it at the high reduced frequencies. The results show that an increase in airfoil Mach number leads to a significant increase in the unsteady lift and moment for the low reduced frequencies, but a significant decrease for the high reduced frequencies.

  8. Uss uuristab inimese südame kallal / Kärt Hellerma

    Index Scriptorium Estoniae

    Hellerma, Kärt, 1956-

    2003-01-01

    Arvustus: [Õnnepalu, Tõnu] Tode, Emil. Raadio. Tallinn : Eesti Keele Sihtasutus, 2002. Ilmunud ka kogumikus: Hellerma, Kärt. Kohanenud kirjandus : valik kirjanduskriitikat 1987-2006. Eesti Keele Sihtasutus : Tallinn, 2006. Lk. 47-53

  9. The Keystone Dame Site and other Archaic and Formative Sites in Northwest El Paso, Texas.

    Science.gov (United States)

    1980-10-01

    characteristics and were also an important element splendens), sotol ( Dasylirion wheeleri ), and in Mescalero Apache subsistence (Basehart 1974...involved some labor to crush the nuts and leach out Sotol ( Dasylirion wheeleri ). The green stalks of with water the bitter tannin before cooking as...materials royos and on a few nearby sandy ridge-tops, and recovered Lom these features include the previously sotol ( Dasylirion wheeleri ) which occurs in

  10. US Army Research Laboratory and University of Notre Dame Distributed Sensing: Hardware Overview

    Science.gov (United States)

    2017-11-01

    diverse software- defined sensors to perform detection and geolocation of a signal source of interest . A transmitter module was designed using the... simple high-level example of the networked distributed sensor, target, and the data processing and network control (DPNC) module experiment that...scientific, and medical) radio band. As Fig. 11 shows, the simulated amplifier gain extends past our desired frequency of interest . Fig. 10 shows the

  11. Students' Perceptions of Higher Education Quality at Notre Dame University-Louaize in Lebanon

    Science.gov (United States)

    Saad, Nada

    2013-01-01

    Understanding how students perceive quality of education and identifying the most important quality factors from their perspectives represent a first stage for quality improvement and customer satisfaction in higher education. The purpose of this project was to investigate how higher education students in Lebanon perceived the concept of quality…

  12. Dame Bug and her students: The science and environmental teaching of Edith Marion Patch

    Science.gov (United States)

    Bird, Mary Dickinson

    What can we learn about science teaching from a dead entomologist? And what will this learning mean in the context of our own teaching, half a century after her death? This project is an exploration of the educational ideas and practices of Edith Marion Patch (1876-1954), a pioneering entomologist, educator, and environmentalist whose research and teaching shaped science learning among farmers, children, parents, teachers, and fellow scientists from the start of her career in 1903 until her retirement from professional endeavors in 1945. Patch was one of America's first university-trained female entomologists, the first woman president of the Entomological Society of America and one of the most respected scientists of her time. She was a beloved, bestselling author of more than one hundred natural history stories and books for young learners and dozens of nature and gardening articles for adults. She was also one of the earliest environmentalists to sound an alarm about the hazards of chemical pesticides, delivering her first address on the topic in 1906, one year before Rachel Carson was born. Because of the respect she earned in every milieu in which she worked, Edith Patch was uniquely positioned to influence a wide range of learners, from fellow scientists to home gardeners, to little children. Despite her accomplishments and her renown during her lifetime, Edith Patch is little remembered today. Yet her educational work may prove to be of particular relevance for our time, in which scientific literacy and environmental stewardship take on increasing urgency. Indeed, in the current climate of educational reform, which in some aspects reproduces the inquiry-based, experiential approach advocated by Patch and other education reformers a century ago, a close examination of Patch's teaching may prove to be of particular value. This study therefore seeks to fill the gap in our pedagogical memory regarding this eminent woman, considering the copious evidence of ways in which Patch engaged her audience in investigating nature's story and in finding their own place in it.

  13. Judith hindab tasakaalu südame ja mõistuse vahel / Rita Puidet

    Index Scriptorium Estoniae

    Puidet, Rita

    2008-01-01

    Iisaku koguduse organistist Judith Kulverest, tema elust, õpingutest teatrikoolis, kohapealsest seltisielust, teatritegemisest ning näitlejast abikaasast Heino Kulverest, kes töötas Eesti Raadios kuuldemängude lavastajana

  14. US Army Research Laboratory and University of Notre Dame Distributed Sensing: Software Overview

    Science.gov (United States)

    2017-09-01

    Raspberry Pi) limited the usable bandwidth to 2 MHz. A commercial mobile ad-hoc network (MANET) was set up among the central host and the remote...graphical interface that is used to design and generate GR modules. It translates a graphically designed flowchart to a Python script that can...communicate with SDRs. The script it generates uses commands linked to GR blocks that are written in C++ for speed and efficiency. The software runs in the

  15. Hispaanlaste südamed võitnud eesti pianist avab kammermuusikasarja

    Index Scriptorium Estoniae

    2004-01-01

    Hispaania 46. rahvusvahelisel pianistide konkursil "Premio Jaen de piano 2004" kuldmedali, publikupreemia ja preemia nüüdisteose parima esituse eest võitnud Irina Zahharenkovast, kontsertidest Kadrioru lossis 12. sept. ja 30. okt. kammermuusikasarja "Akadeemiline kammermuusika" raames

  16. Soo soomlaste südames ja soo lugudes / Piret Paal

    Index Scriptorium Estoniae

    Paal, Piret, 1977-

    2011-01-01

    Tutvustus: Laurén, Kirsi. Suo - sisulla ja sydämellä : suomalaisten suokokemukset ja -kertomukset kulttuurisen luontosuhteen ilmentäjinä. Helsinki : Suomalaisen Kirjallisuuden Seura, 2006 (doktoritöö)

  17. Dame Josephine Barnes: distinguished gynaecologist and first woman president of the British Medical Association.

    Science.gov (United States)

    Ellis, Harold

    2010-01-01

    In previous articles in this series, we have written about the great women pioneers who broke down the barriers which prohibited or limited their entry into the various branches of the healthcare professions and who then proved that they could compete, on equal terms, with their male counterparts. Included in the first among these, of course, was Florence Nightingale, who, in the Crimean war (1854-6) and afterwards introduced the 'modern' era of nursing training and put an end to the dirty, ignorant and often drunk women who had been delegated to look after the sick and injured in the hospital wards before her time.

  18. Violante Sánchez, fille de roi et filleule de reine

    Directory of Open Access Journals (Sweden)

    Charles Garcia

    2008-05-01

    Full Text Available Fière de son ascendance royale, l’infante Violante, fille illégitime de Sanche IV, arbora toujours son prestigieux lignage avec ostentation. Bien qu’elle n’ait pas joué un rôle politique de premier plan en Castille, cette femme sut utiliser sa lignée pour prendre le contrôle d’un certain nombre de monastères, par le biais de la mise en commende. C’est donc à travers la gestion de ses affaires que nous avons eu accès au sens du rang social d’une rica hembra du début du XIVe siècle, mais aussi au vécu d’une femme d’influence, si ce n’est de pouvoir.Orgullosa de su ascendencia regia, doña Violante, una hija ilegítima de Sancho IV, siempre hizo gala de sus ancestros. Aunque nunca desempeñó un papel político relevante en la Castilla de principios del siglo XIV, dicha infante consiguió hacerse con el poder de varios monasterios, mediante el conocido sistema de la encomienda. Así pues, estudiando su testamento, hemos intentado aproximarnos al significado de lo que entonces era una “rica hembra”, desde el punto de vista social, pero también a su actuación como mujer gobernadora de notable influencia.

  19. Performance Marketing with Google Analytics Strategies and Techniques for Maximizing Online ROI

    CERN Document Server

    Tonkin, Sebastian

    2010-01-01

    An unparalleled author trio shares valuable advice for using Google Analytics to achieve your business goals. Google Analytics is a free tool used by millions of Web site owners across the globe to track how visitors interact with their Web sites, where they arrive from, and which visitors drive the most revenue and sales leads. This book offers clear explanations of practical applications drawn from the real world. The author trio of Google Analytics veterans starts with a broad explanation of performance marketing and gets progressively more specific, closing with step-by-step analysis and a

  20. Does ROI Matter? Insights into the True Business Value of IT

    NARCIS (Netherlands)

    Gilbert Gilbert Silvius

    2012-01-01

    Ever since the introduction of an ‘IT productivity paradox’ by Robert Solow, the business value of information technology (IT) has been the topic of many debates by practitioners as well as by academics. In these discussions a distinction can be made between the variance approach, investigating what

  1. M-X Environmental Technical Report. Socioeconomic Impact Estimates for Texas ROI Counties. Detailed Tables.

    Science.gov (United States)

    1980-12-22

    C C .-C C WI N -Is r) 00 t o - 1 W. lO W I lz w~ .4 - 1 NI C - t cn z>- 0o in o ’a CI- ~ ~ -WE IC 0 0 W 1O Z WI u WI WIx Z-.CA 4- 1. LL, I1C W WI 0 W...00-I I a)I 2 < 1 0 z I i N WI rd r0 00--I W a Iu- lNr I- IC 0 It CL %n 00 I ~ -- 0-- I aI 0 I 0 I (n I i 0 0 0 0 i0 IO 0i w I I c I z II WIx 0-w I tr

  2. Return on Investment (ROI) for Education Philanthropy: Focus on the Bottom Line. Research into Practice

    Science.gov (United States)

    Johnston, J. Howard

    2011-01-01

    Education is a top-priority funding area for corporate philanthropy, mostly because corporate leaders recognize that strategic investments in education can have long-term pay off for their companies as well as for students and schools. It is also one of the most visible and effective means for demonstrating a company's commitment to corporate…

  3. Create full-scale predictive economic models on ROI and innovation with performance computing

    Energy Technology Data Exchange (ETDEWEB)

    Joseph, Earl C. [IDC Research, Inc., Framingham, MA (United States); Conway, Steve [IDC Research, Inc., Framingham, MA (United States)

    2017-10-27

    The U.S. Department of Energy (DOE), the world's largest buyer and user of supercomputers, awarded IDC Research, Inc. a grant to create two macroeconomic models capable of quantifying, respectively, financial and non-financial (innovation) returns on investments in HPC resources. Following a 2013 pilot study in which we created the models and tested them on about 200 real-world HPC cases, DOE authorized us to conduct a full-out, three-year grant study to collect and measure many more examples, a process that would also subject the methodology to further testing and validation. A secondary, "stretch" goal of the full-out study was to advance the methodology from association toward (but not all the way to) causation, by eliminating the effects of some of the other factors that might be contributing, along with HPC investments, to the returns produced in the investigated projects.

  4. Decoding the IT value problem an executive guide for achieving optimal ROI on critical IT investments

    CERN Document Server

    Fell, Gregory J

    2013-01-01

    Gain greater returns from your IT investments Revealing the secrets to proven, effective strategies that enable businesses to leverage the full value of highly expensive IT investments, Decoding the IT Value Problem is a no-nonsense guide for making smart IT investments and cutting through the noise of vendor marketing and media hype. Author Gregory Fell describes in rich detail the actual processes, frameworks, infrastructure and discipline required to develop and execute corporate IT strategies that areprofitable and sustainable.Provides a proven framework for develop

  5. ROI on yield data analysis systems through a business process management strategy

    Science.gov (United States)

    Rehani, Manu; Strader, Nathan; Hanson, Jeff

    2005-05-01

    The overriding motivation for yield engineering is profitability. This is achieved through application of yield management. The first application is to continually reduce waste in the form of yield loss. New products, new technologies and the dynamic state of the process and equipment keep introducing new ways to cause yield loss. In response, the yield management efforts have to continually come up with new solutions to minimize it. The second application of yield engineering is to aid in accurate product pricing. This is achieved through predicting future results of the yield engineering effort. The more accurate the yield prediction, the more accurate the wafer start volume, the more accurate the wafer pricing. Another aspect of yield prediction pertains to gauging the impact of a yield problem and predicting how long that will last. The ability to predict such impacts again feeds into wafer start calculations and wafer pricing. The question then is that if the stakes on yield management are so high why is it that most yield management efforts are run like science and engineering projects and less like manufacturing? In the eighties manufacturing put the theory of constraints1 into practice and put a premium on stability and predictability in manufacturing activities, why can't the same be done for yield management activities? This line of introspection led us to define and implement a business process to manage the yield engineering activities. We analyzed the best known methods (BKM) and deployed a workflow tool to make them the standard operating procedure (SOP) for yield managment. We present a case study in deploying a Business Process Management solution for Semiconductor Yield Engineering in a high-mix ASIC environment. We will present a description of the situation prior to deployment, a window into the development process and a valuation of the benefits.

  6. Estimating the ROI for Recruitment Marketing and Advertising Expenditure for the Australian Defence Force

    Science.gov (United States)

    2012-03-01

    JAMRS Joint Advertising Marketing Research & Studies NATSEM National Centre for Social and Economic Modelling NRC Navy Recruiting Command U.S...has no long-lasting positive or negative impact on attitudes towards the military or decisions to enlist (Joint Advertising Marketing Research & Studies...propensity, it appears these changes are short-lived with propensity reverting to long-term averages (Joint Advertising Marketing Research & Studies, 2011a

  7. Baudolino, les rois mages et le mentir vrai.Pour une lecture du signe

    Directory of Open Access Journals (Sweden)

    Arnaud de Vallouit

    2003-09-01

    Full Text Available Quels sont les rapports entre la parole et la réalité dans le quatrième roman d’Umberto Eco, Baudolino ? L’écrivain brouille ostensiblement les pistes dans un ouvrage expérimental, qui est une méditation sur la création littéraire, mais reste prisonnier d’une forme finalement assez conventionnelle.

  8. A Case Study of ROI in Organizational Performance of Working at Home

    Science.gov (United States)

    Phillips, Jack; Phillips, Patti; Robinson, Rachel

    2013-01-01

    With the growing suburban population, many employees in metro areas are facing long commutes to and from the workplace. According to the 2011 Texas Transportation Institute's Urban Mobility Report, the average commuter experiences 34 hours of delay per year and spends an extra $713 on fuel (see…

  9. L’église Notre-Dame de Rocquigny (Pas-de-Calais : restauration, reconstruction ou abandon ?

    Directory of Open Access Journals (Sweden)

    Jacques Philippon

    2009-11-01

    Full Text Available IntroductionLe village de Rocquigny (274 habitants est situé au sud du département du Pas-de-Calais (canton de Bapaume, à proximité immédiate d’une des importantes lignes de front de la Grande Guerre : la ligne Hindenburg. Ce qui explique que la quasi-totalité des villages de ce territoire ont été totalement détruits notamment lors des grandes offensives de 1917.C’est ainsi que le village s’est retrouvé au cœur du vaste dispositif de la Reconstruction mis en œuvre dans les années 1920 par l...

  10. Organizational Adaptation to the Rapidly Changing External Environment: A Case Study of Strategic Marketing at Notre Dame College in Ohio

    Science.gov (United States)

    Brown, Shawn M.

    2012-01-01

    This thesis examined the role of strategic marketing in organizational adaptation to a rapidly changing and competitive external environment among institutions of higher education. Colleges and universities adapt to external pressures as open systems operating within a broader external environment (Bess & Dee, 2008; Keller, 1983). How does…

  11. Gruppenbild mit Dame: »Das Gericht der Brabanter Münzergilde« von Maarten de Vos (1594

    Directory of Open Access Journals (Sweden)

    Erk Volkmar Heyen

    2009-01-01

    Full Text Available This article analyzes a painting by Maarten de Vos (1532–1603, the most distinguished Flemish painter before the Baroque period. Although relatively unknown among jurists, its legal iconography is remarkable. It combines a portrait of the members of a guild court and a highly elaborated allegory of justice: a Iustitia among Moses, Iustinianus, Numa Pompilius and Lycurgus. First, the painting is described according to the art-historical literature, which is mainly in Dutch. The critical comment which follows focuses on the identification of Lycurgus. In contrast to the other three ancient legislators, Lycurgus cannot be identified by an extract from a legal source but only by a depiction of animals. Until now, therefore, the view has prevailed that the representation is about Pliny the Elder and his »Naturalis Historia«. Contrary to this view, the article tries to demonstrate that the depiction of animals (a dog is eating from a bowl, another is hunting a deer refers to a parable which Lycurgus, as handed down by Plutarch, had invented to illustrate the political importance of education. Other visualizations of this parable by Caesar B. van Everdingen, Otto van Veen and Jan Saenredam are consulted for the purpose of comparison. Finally, the painting of de Vos is put into the tradition of Iustitia-allegories and group portraits, especially in Holland, Italy and France.

  12. Eesti kunst Euroopa südames : kümme kunstnikku Borchette'i keskuses / Roger Pierre Turine

    Index Scriptorium Estoniae

    Turine, Roger Pierre

    1998-01-01

    Eesti Vabariigi 80. aastapäeva ürituste raames Brüsselis avatud eesti kunsti väljapanekust. "La Libre Belgique"'i kunstikriitik R. P. Turine L. Lapini, R. Meele, J. Kase, A. Lille, V. Vinogradovi, A. Toltsi, P. Pere, S. Runge, K. Ole, P. Pärna töödest. Kuraator Sirje Helme selgitus ja galerist Ruben Forni arvamus näituse kohta.

  13. Dynamic assessment of microbial ecology (DAME): A shiny app for analysis and visualization of microbial sequencing data

    Science.gov (United States)

    A new renaissance in knowledge about the role of commensal microbiota in health and disease is well underway facilitated by culture-independent sequencing technologies; however, microbial sequencing data poses new challenges (e.g., taxonomic hierarchy, overdispersion) not generally seen in more trad...

  14. Saint-Lupicin (Jura, étude de bâti de l’église Notre-Dame

    Directory of Open Access Journals (Sweden)

    Aurélia Bully

    2007-08-01

    Full Text Available Modalités de l’opération et problématiquesL’église de Saint-Lupicin fait l’objet depuis mai 2006 d’un important chantier de restauration sous la conduite de P. Barnoud, Architecte en chef des Monuments historiques. Les travaux portent essentiellement sur le remplacement de la toiture de la nef dont l’état de dégradation menaçait la pérennité de l’ouvrage. Après que la maîtrise d’ouvrage (commune de Saint-Lupicin eut choisi de restituer une charpente à quatre pans dans l’esprit du parti d’ori...

  15. A festa nazi em Le Roi des Aulnes. De Michel Tournier: eu-foria e dis-foria

    OpenAIRE

    Fontes, Filomena Pimentel

    2005-01-01

    Sugerido para estes encontros interdisciplinares, o tema da Festa reenvia-nos para sentimentos de alegria e plenitude, para algo que traz ao quofidiano a abolição do tempo, uma centelha de renovação e etemidade, que podemos denominar de euforia. De acordo com a etimologia, a palavra foria deriva do grego (popeív e significa trazer, levar, carregar, ao passo que o prefixo eu, (et)) da mesma origem, quer dizer bem. Se juntarmos à mesma palavra, foria, o prefixo Ôya, também de ...

  16. Cardiac C-arm computed tomography using a 3D + time ROI reconstruction method with spatial and temporal regularization

    Energy Technology Data Exchange (ETDEWEB)

    Mory, Cyril, E-mail: cyril.mory@philips.com [Université de Lyon, CREATIS, CNRS UMR5220, Inserm U1044, INSA-Lyon, Université Lyon 1, F-69621 Villeurbanne Cedex (France); Philips Research Medisys, 33 rue de Verdun, 92156 Suresnes (France); Auvray, Vincent; Zhang, Bo [Philips Research Medisys, 33 rue de Verdun, 92156 Suresnes (France); Grass, Michael; Schäfer, Dirk [Philips Research, Röntgenstrasse 24–26, D-22335 Hamburg (Germany); Chen, S. James; Carroll, John D. [Department of Medicine, Division of Cardiology, University of Colorado Denver, 12605 East 16th Avenue, Aurora, Colorado 80045 (United States); Rit, Simon [Université de Lyon, CREATIS, CNRS UMR5220, Inserm U1044, INSA-Lyon, Université Lyon 1 (France); Centre Léon Bérard, 28 rue Laënnec, F-69373 Lyon (France); Peyrin, Françoise [Université de Lyon, CREATIS, CNRS UMR5220, Inserm U1044, INSA-Lyon, Université Lyon 1, F-69621 Villeurbanne Cedex (France); X-ray Imaging Group, European Synchrotron, Radiation Facility, BP 220, F-38043 Grenoble Cedex (France); Douek, Philippe; Boussel, Loïc [Université de Lyon, CREATIS, CNRS UMR5220, Inserm U1044, INSA-Lyon, Université Lyon 1 (France); Hospices Civils de Lyon, 28 Avenue du Doyen Jean Lépine, 69500 Bron (France)

    2014-02-15

    Purpose: Reconstruction of the beating heart in 3D + time in the catheter laboratory using only the available C-arm system would improve diagnosis, guidance, device sizing, and outcome control for intracardiac interventions, e.g., electrophysiology, valvular disease treatment, structural or congenital heart disease. To obtain such a reconstruction, the patient's electrocardiogram (ECG) must be recorded during the acquisition and used in the reconstruction. In this paper, the authors present a 4D reconstruction method aiming to reconstruct the heart from a single sweep 10 s acquisition. Methods: The authors introduce the 4D RecOnstructiOn using Spatial and TEmporal Regularization (short 4D ROOSTER) method, which reconstructs all cardiac phases at once, as a 3D + time volume. The algorithm alternates between a reconstruction step based on conjugate gradient and four regularization steps: enforcing positivity, averaging along time outside a motion mask that contains the heart and vessels, 3D spatial total variation minimization, and 1D temporal total variation minimization. Results: 4D ROOSTER recovers the different temporal representations of a moving Shepp and Logan phantom, and outperforms both ECG-gated simultaneous algebraic reconstruction technique and prior image constrained compressed sensing on a clinical case. It generates 3D + time reconstructions with sharp edges which can be used, for example, to estimate the patient's left ventricular ejection fraction. Conclusions: 4D ROOSTER can be applied for human cardiac C-arm CT, and potentially in other dynamic tomography areas. It can easily be adapted to other problems as regularization is decoupled from projection and back projection.

  17. Cardiac C-arm computed tomography using a 3D + time ROI reconstruction method with spatial and temporal regularization

    International Nuclear Information System (INIS)

    Mory, Cyril; Auvray, Vincent; Zhang, Bo; Grass, Michael; Schäfer, Dirk; Chen, S. James; Carroll, John D.; Rit, Simon; Peyrin, Françoise; Douek, Philippe; Boussel, Loïc

    2014-01-01

    Purpose: Reconstruction of the beating heart in 3D + time in the catheter laboratory using only the available C-arm system would improve diagnosis, guidance, device sizing, and outcome control for intracardiac interventions, e.g., electrophysiology, valvular disease treatment, structural or congenital heart disease. To obtain such a reconstruction, the patient's electrocardiogram (ECG) must be recorded during the acquisition and used in the reconstruction. In this paper, the authors present a 4D reconstruction method aiming to reconstruct the heart from a single sweep 10 s acquisition. Methods: The authors introduce the 4D RecOnstructiOn using Spatial and TEmporal Regularization (short 4D ROOSTER) method, which reconstructs all cardiac phases at once, as a 3D + time volume. The algorithm alternates between a reconstruction step based on conjugate gradient and four regularization steps: enforcing positivity, averaging along time outside a motion mask that contains the heart and vessels, 3D spatial total variation minimization, and 1D temporal total variation minimization. Results: 4D ROOSTER recovers the different temporal representations of a moving Shepp and Logan phantom, and outperforms both ECG-gated simultaneous algebraic reconstruction technique and prior image constrained compressed sensing on a clinical case. It generates 3D + time reconstructions with sharp edges which can be used, for example, to estimate the patient's left ventricular ejection fraction. Conclusions: 4D ROOSTER can be applied for human cardiac C-arm CT, and potentially in other dynamic tomography areas. It can easily be adapted to other problems as regularization is decoupled from projection and back projection

  18. Classification, thésaurus, ontologies, folksonomies : comparaisons du point de vue de la recherche ouverte d'information (ROI)

    OpenAIRE

    Zacklad , Manuel

    2007-01-01

    International audience; This paper compares several Knowledge Organisations Systems (classifications, thesaurus, formal ontology, semiotic ontology, folksonomy) according to different criteria in order to assess their relevance according to Open Information Research.; Cet article compare différents systèmes d'organisation des connaissances (classifications, thésaurus, ontologies formelles, ontologies sémiotiques, folksonomies) selon différents critères pour évaluer leur pertinence en regard d...

  19. Observation de terrain et télédétection (Baie du Roi, Spitsberg nord-occidental

    Directory of Open Access Journals (Sweden)

    Dominique Laffly

    1999-06-01

    Full Text Available Les observations de terrain sont fondamentales en télédétection. Selon la finalité de l’étude, la description des paysages observés sera plus ou moins détaillée. Une simple reconnaissance des principaux postes d’occupation du sol demande peu d’indicateurs et ne nécessite pas une localisation à la tachèle près. En revanche, l’analyse du contenu des pixels en vue d’une modélisation statistique s’appuie sur une description thématique détaillée de points localisés très précisément. Dans ce cas les images utilisées doivent être correctement géoréférencées et la localisation sur le terrain se fait à l’aide d’un GPS différentiel. Restent les problèmes du choix des points à analyser ainsi que celui de l’observation elle-même de leur "contenu". Nous présentons dans cet article une méthode qui vise à répondre à ces deux questions. Notre approche est fondée sur la technique du sondage systématique non-aligné. Cette dernière permet de tenir compte à la fois de la valeur des points observés et de leur localisation pour définir le plan d’échantillonnage. Les exemples présentés sont issus d’une étude réalisée sur les sandurs de la presqu’île de Br¯gger au Spitsberg nord-occidental (images SPOT XSP.

  20. Kunsti tegemise protsess on elule lähemal kui kunstiteos / Roi Vaara ; interv. Eero Epner, Anders Härm

    Index Scriptorium Estoniae

    Vaara, Roi, 1953-

    2003-01-01

    R. Vaara sellest, millal ja miks ta hakkas tegelema performancei-kunstiga, oma loomingust, seotusest rühmitusega Black Market International, esinemisest 10. II Tallinna Kunstihoones performanceiga "Words". Intervjuu 15. veebr. Vikerraadio "Kultuurikajas"

  1. Armastuse Armee süütab täna Snelli tiigi ääres südame / Askur Alas

    Index Scriptorium Estoniae

    Alas, Askur, 1973-

    2005-01-01

    Valgusfestivali üritustest Tallinnas. 14. jaanuaril Shnelli tiigi ääres toimuval tuleskulptuuride võistlusel osaleva Rootsi võistkonna Armastuse Armee tuleetendusest räägivad võistkonna juht skulptor Gunnar Carl Nilsson ja maalikunstnik Ola Öhlin. Veebruari algul vanalinna kohale kerkiva valguskupli idee autorid on hollandlased Winy Maas ja Rogier van der Heide. 25. jaanuaril seatakse üles büroo Kavakava installatsioon "Tallinna talje"

  2. Education in the New Era: The Dissemination of Education for Sustainable Development in the Political Science Programmes at Notre Dame University--Louaize

    Science.gov (United States)

    Labaki, Georges

    2012-01-01

    Sustainable development is continuous process of change requiring painful choices resting on political will. This paper examines the developments needed to engage with sustainable development in the field of political science through the following: the reform in political science programmes to cope with the need for sustainable development in…

  3. Sedimentary paleoenvironments of the Candeleros Formation(Rio Limay Subgroup)upper cretaceous, Ezequiel Ramos Mexia, Neuquen, Argentina daming west, Argentina

    International Nuclear Information System (INIS)

    Sanchez, M.

    2004-01-01

    Sedimentary facies from the Candeleros Formation (Rio Limay Subgroup), cropping out at the El Escondido creek, at the Ezequiel Ramos Mexia dam, are analyzed and interpreted in this paper. A sedimentological detailed section was measured to get the main goal of this paper which is the sedimentary paleoenvironment. The outcroppings were pictured and a section was measured, geometries and espacial relation between them were analyzed. Eight lithofacies were identified which are: coarse sandstone facies (Se), sandstones (Sm, St, Sp, Sh t Sr), siltstones and shales (Fl and Fr). These lithofacies were agrupated into eight facies associations (FA). AFA constitutes the registration of multiepisodic events of sheet floods; AFB, C and D are product of the depositation in a braided channel belt, AFE represents units of lateral accretion, AFF is assigned deposits of crevasse splay and AFG and H are assigned to plain of flood. The distribution of these associations in the column defines an terminal fan paleoenvironment where is represented of base to top: distal (AFA, B and G) and proximal area (AFD and G) of the distributary plain; zone of feeding of the system (AFC, And, F and G), media-proximal distributary plain (AFD and F), proximal distributary plain (AFC, And, F and G); and flood basin (AFF, G and H) [es

  4. Social Responsibility of the Lebanese Private Universities: A Qualitative Study of Notre Dame University Using Document Analysis of Publicly Available Data

    Science.gov (United States)

    Youness, Hasan Riad

    2012-01-01

    Universities' role is gaining more importance than ever before due to the challenges facing the stakeholders to whom such universities appeal. When the power structure of the community is highly respected and the approach of the universities becomes more stakeholders centered, the negative externalities and societal challenges can be lessened.…

  5. EPA, Notre Dame researchers discuss challenges in adopting DNA-based methods for monitoring invasive species in U.S. water bodies

    Science.gov (United States)

    DNA-based technology helps people solve problems. It can be used to correctly match organ donors with recipients, identify victims of natural and man-made disasters, and detect bacteria and other organisms that may pollute air, soil, food, or water.

  6. TL-dating applied to building archaeology: The case of the medieval church Notre-Dame-Sous-Terre (Mont-Saint-Michel, France)

    Energy Technology Data Exchange (ETDEWEB)

    Blain, Sophie [IRAMAT-CRP2A-UMR 5060, CNRS-Universite de Bordeaux 3, Maison de l' Archeologie, F-33 607 Pessac (France); Luminescence Laboratory, Department of Archaeology, University of Durham, South Road, DH1 3LE Durham (United Kingdom)], E-mail: blain.sophie@gmail.com; Guibert, Pierre [IRAMAT-CRP2A-UMR 5060, CNRS-Universite de Bordeaux 3, Maison de l' Archeologie, F-33 607 Pessac (France)], E-mail: guibert@u-bordeaux3.fr; Bouvier, Armel [IRAMAT-CRP2A-UMR 5060, CNRS-Universite de Bordeaux 3, Maison de l' Archeologie, F-33 607 Pessac (France)], E-mail: bouvier_armel@yahoo.fr; Vieillevigne, Emmanuelle [IRAMAT-CRP2A-UMR 5060, CNRS-Universite de Bordeaux 3, Maison de l' Archeologie, F-33 607 Pessac (France)], E-mail: evieillevign@u-bordeaux3.fr; Bechtel, Francoise [IRAMAT-CRP2A-UMR 5060, CNRS-Universite de Bordeaux 3, Maison de l' Archeologie, F-33 607 Pessac (France); Sapin, Christian [Laboratoire Archeologie, Culture et Societe-UMR 8894, CNRS-Universite de Bourgogne, Dijon (France)], E-mail: sapin.christian@wanadoo.fr; Bayle, Maylis [Laboratoire de medievistique occidentale de Paris, UMR 8589, CNRS-Universite de Paris 1 (France)], E-mail: maylis.bayle@wanadoo.fr

    2007-10-15

    The recent application of thermoluminescence (TL) dating to young building materials is being increasingly developed for use in the field of buildings archaeology [; ; ]. Ensuring the accuracy of the dating method is of the utmost importance in order to achieve results which are pertinent enough to have archaeological significance. This paper deals with an archaeological building study of the first church built on the Mont-Saint-Michel (France) and improvements made to the TL-protocol in Bordeaux. The aim is to achieve precise dates for the material under analysis and therefore, a better understanding of the evolution of the building. For this study, 14 bricks have been sampled from eight different masonries and submitted for TL dating analysis. With the exception of one sample which appears to be non-contemporaneous to the others, the date results range from 900{+-}80 to 1020{+-}60 AD. The results were then averaged according to the two phases established by the archaeological building study. The first two stages of the primitive church both date from the 10th century.

  7. TL-dating applied to building archaeology: The case of the medieval church Notre-Dame-Sous-Terre (Mont-Saint-Michel, France)

    International Nuclear Information System (INIS)

    Blain, Sophie; Guibert, Pierre; Bouvier, Armel; Vieillevigne, Emmanuelle; Bechtel, Francoise; Sapin, Christian; Bayle, Maylis

    2007-01-01

    The recent application of thermoluminescence (TL) dating to young building materials is being increasingly developed for use in the field of buildings archaeology [; ; ]. Ensuring the accuracy of the dating method is of the utmost importance in order to achieve results which are pertinent enough to have archaeological significance. This paper deals with an archaeological building study of the first church built on the Mont-Saint-Michel (France) and improvements made to the TL-protocol in Bordeaux. The aim is to achieve precise dates for the material under analysis and therefore, a better understanding of the evolution of the building. For this study, 14 bricks have been sampled from eight different masonries and submitted for TL dating analysis. With the exception of one sample which appears to be non-contemporaneous to the others, the date results range from 900±80 to 1020±60 AD. The results were then averaged according to the two phases established by the archaeological building study. The first two stages of the primitive church both date from the 10th century

  8. Notre-Dame du Raincy (Seine-Saint-Denis, chef-d’œuvre des chapelles de la banlieue ?

    Directory of Open Access Journals (Sweden)

    Antoine Le Bas

    2012-04-01

    Full Text Available Territoire érigé en commune en 1869, Le Raincy doit, dans le cadre concordataire, se doter d’une église à la mesure d’un essor démographique qui gonfle le nombre de ses paroissiens. Le curé, Victor Nègre, qui bénéficie à l’issue de la Grande guerre d’un don lié aux victimes de la Bataille de la Marne, doit donc concevoir à la fois une église paroissiale et un mémorial. Après divers projets, les architectes Auguste et Gustave Perret se proposent d’édifier une église vaste et légère pour un coût raisonnable. L’édifice s’inspire d’un programme basilical à tour-porche assez traditionnel ; mais l’audace structurelle des voiles minces de la nef et des bas-côtés, l’emploi d’un matériau - le béton armé - jusqu’alors quasi inédit dans ce type d’architecture, et le processus constructif retenu, fondé sur une standardisation poussée de la production d’éléments modulaires et de leur assemblage, en font un édifice très novateur. Au terme de treize mois de chantier, c’est une église de banlieue qui émerge, dotée des équipements nécessaires à la vie paroissiale, mais aussi un sanctuaire conforme à la réforme liturgique amorcée au début du siècle. Un riche programme iconographique résultant de l’étroite collaboration du curé, de l’architecte et du peintre (Maurice Denis y développe et y noue trois thématiques (christique, marial et patriotique dont la synthèse inaugure un nouvel art sacré. Malgré le choc initial de sa réception, l’église du Raincy devint, à l’étranger d’abord, puis en France, le prototype d’une architecture religieuse moderne et économique, genre dans lequel les frères Perret s’illustrèrent par une œuvre abondante jusqu’à la fin de leur carrière. La reconnaissance officielle de l’église - classée en 1966 - assura la pérennité d’une œuvre dont le matériau principal et les verrières appelaient d’urgentes restaurations, aujourd’hui achevées.The Paris suburb of Le Raincy became an independent commune in 1869 and, in accordance with the Concordat of 1801, was expected to build a church to accommodate its growing numbers of parishioners. After the First World War, the parish priest, Victor Nègre, received a donation destined to honour the victims of the Battle of the Marne, and the church he had to conceive was consequently both a parish church and a war memorial. After various other projects, the architects Auguste and Gustave Perret put forward a design for a vast, airy building which could be erected at a relatively low cost. Their building was of basilical inspiration with a fairly traditional tower-porch. But the church was nonetheless a highly innovative building in terms of its construction techniques: the thin concrete walls for the nave and side aisles; the use of reinforced concrete, then almost unheard of in religious architecture; the building techniques used, based on considerable standardisation in the production and assembly of modular elements. The church took thirteen months to build and resulted in an edifice with all the facilities necessary for parish life, but which was also a sanctuary in harmony with the liturgical reforms undertaken at the beginning of the 20th century. The decoration of the church was particularly rich, resulting from the close collaboration between the priest, the architects and the painter Maurice Denis. The themes dealt with, turning around the figures of Christ and the Virgin Mary, and with patriotic overtones, announced in their synthesis the inter-war renewal of sacred art. Despite initial reticence in the face of the church’s modernity, it was soon recognised, first abroad and then in France, as a possible prototype for modern, economic religious buildings. The Perret brothers pursued this type of church building, with numerous examples, up to the end of their career. The recognition of the church’s heritage values - it was given statutory protection (classé in 1966 - guaranteed the building’s survival: the original reinforced concrete and the stained-glass windows were in urgent need of restoration, but this restoration has been completed today.

  9. Orkaan Rita ähvardab rüüstata USA naftatööstuse südame / Annika Matson

    Index Scriptorium Estoniae

    Matson, Annika, 1976-

    2005-01-01

    Orkaan Rita läheneb USA naftatööstuse südamele Texasele, kus toodetakse veerand USA naftatoodetest. Diagramm: Naftafirmade aktsiate tõus. Vt. samas: Bensiini hinna olulist tõusu Eestis prognoosida oleks ennatlik

  10. Factors that influence the interests of farmer in shallots farming at Cinta Dame village of Simanindo sub district of Samosir district

    Science.gov (United States)

    Siregar, A. F.; Supriana, T.

    2018-02-01

    Shallots contains a lot of usefull ingredients for human life, especially as flavor to dishes by Indonesian. The need for shallots was increasing as increasing population. The increased demand of shallots caused the price to increase due to production in North Sumatera was low. The objective of this study is to analyze interest and factors that affect the interest of farmers in shallots farming and analyze the responses from each factors to the interest of farmers in shallots farming. The samples were 85 farmers in shallots farming. Binomial logit was used as data analysis method. The result of the study showed that the factors that influence the interest of farmers in shallots farming consist of land area, experience, income, supporting and trauma.. The opportunity of farmers in shallots farming increased 22% if the area of land increased by one acre. The probability variable with the supporting is higher 0,3 % compared without the supporting. While the probability variable without the trauma is higher 0,014 % compared with the trauma.

  11. Ki wa ja loodus / Martin Rünkla

    Index Scriptorium Estoniae

    Rünk, Martin

    2010-01-01

    Ki wa näitus "Wildlife documentaries" ("Looduse valetõlked") Tallinnas Draakoni galeriis 23. jaanuarini 2010. Eksponeeritud mustvalged tekstimaalid. Kunstnik tõlgendab looduspilte ja helisid tekstina

  12. President kinnitas süümevande ehtsust

    Index Scriptorium Estoniae

    2006-01-01

    President Arnold Rüütel teatas, et pole süümevannet andes midagi salanud ega valet vandunud ning on alusetu seostada tema nõukogudeaegset tegevust Johannes Hindi represseerimisega. Arvamust avaldab presidendikandidaat Toomas Hendrik Ilves

  13. Evaluation of healthy muscle tissue by strain and shear wave elastography – Dependency on depth and ROI position in relation to underlying bone

    DEFF Research Database (Denmark)

    Ewertsen, Caroline; Carlsen, Jonathan Frederik; Christiansen, Iben Riishede

    2016-01-01

    and methods: Ten healthy volunteers (five males and five females) had their biceps brachii, gastrocnemius, and quadriceps muscle examined with strain- and shear wave elastography at three different depths and in regions located above bone and beside bone. Strain ratios were averaged from cine-loops of 10 s...

  14. Estimating the ROI on Implementation of RFID at the Ammunition Storage Warehouse and the 40th Supply Depot: KVA as a Methodology

    Science.gov (United States)

    2009-12-01

    Balanced Scorecard CAPM Capital Asset Pricing Model DIS Defense Information System DoD Department of...Measurement Tool (PMT) is the Balanced Scorecard (BSC) based on critical success factors and key performance indicators. The MND has referred to Jung’s...authors can replicate the methodology for multiple projects to generate a portfolio of projects. Similar to the Capital Asset Pricing Model ( CAPM ) or

  15. LabVIEW Graphical User Interface for a New High Sensitivity, High Resolution Micro-Angio-Fluoroscopic and ROI-CBCT System.

    Science.gov (United States)

    Keleshis, C; Ionita, Cn; Yadava, G; Patel, V; Bednarek, Dr; Hoffmann, Kr; Verevkin, A; Rudin, S

    2008-01-01

    A graphical user interface based on LabVIEW software was developed to enable clinical evaluation of a new High-Sensitivity Micro-Angio-Fluoroscopic (HSMAF) system for real-time acquisition, display and rapid frame transfer of high-resolution region-of-interest images. The HSMAF detector consists of a CsI(Tl) phosphor, a light image intensifier (LII), and a fiber-optic taper coupled to a progressive scan, frame-transfer, charged-coupled device (CCD) camera which provides real-time 12 bit, 1k × 1k images capable of greater than 10 lp/mm resolution. Images can be captured in continuous or triggered mode, and the camera can be programmed by a computer using Camera Link serial communication. A graphical user interface was developed to control the camera modes such as gain and pixel binning as well as to acquire, store, display, and process the images. The program, written in LabVIEW, has the following capabilities: camera initialization, synchronized image acquisition with the x-ray pulses, roadmap and digital subtraction angiography acquisition (DSA), flat field correction, brightness and contrast control, last frame hold in fluoroscopy, looped playback of the acquired images in angiography, recursive temporal filtering and LII gain control. Frame rates can be up to 30 fps in full-resolution mode. The user friendly implementation of the interface along with the high framerate acquisition and display for this unique high-resolution detector should provide angiographers and interventionalists with a new capability for visualizing details of small vessels and endovascular devices such as stents and hence enable more accurate diagnoses and image guided interventions. (Support: NIH Grants R01NS43924, R01EB002873).

  16. SUV navigator enables rapid [18F]-FDG PET/CT image interpretation compared with 2D ROI and 3D VOI evaluations

    International Nuclear Information System (INIS)

    Okizaki, Atsutaka; Nakayama Michihiro; Ishitoya, Shunta; Nakajima, Kaori; Yamashina Masaaki; Aburano, Tamio; Takahashi, Koji

    2017-01-01

    Positron emission tomography (PET) and the maximum standardized uptake value (SUV max ) is a useful technique for assessing malignant tumors. Measurements of SUV max in multiple lesions per patient frequently require many time-consuming procedures. To address this issue, we designed a novel interface named SUV Navigator (SUVnavi), and the purpose of this study was to investigate its utility. We measured SUV max in 661 lesions from 100 patients with malignant tumors. Diagnoses and SUV max measurements were made with SUVnavi, 2D, and 3D measurements. SUV measurement accuracy in each method were also evaluated. The average reduction in time with SUVnavi versus 2D was 53.8% and 3D was 37.5%; time required with SUVnavi was significantly shorter than with 2D and 3D (P < 0.001 and P < 0.001, respectively). The time reduction and lesion number had a positive correlation (P < 0.001 and P < 0.001, respectively). SUV max agreed with precise SUV max in all lesions measured with SUVnavi and 3D but in only 466 of 661 lesions (70.5%) measured with 2D. Conclusion SUVnavi may be useful for rapid [ 18 F]-fluorodeoxyglucose positron emission tomogra phy/computed tomography ([ 18 F]-FDG PET/CT) image interpretation without reducing the accuracy of SUV max measurement. (author)

  17. Le père ou le roi : Stratégies de traduction en Ésaïe IX, 6 et XXII, 21 (Septante

    Directory of Open Access Journals (Sweden)

    Philippe Le Moigne

    2008-12-01

    Full Text Available La Septante (traduction grecque ancienne de la Bible hébraïque d’Ésaïe refuse deux fois à un personnage le nom de « père » que lui accordait le texte hébreu ; en même temps, elle crée à ces personnages des traits royaux, ou les accentue. Il est possible que le traducteur ait voulu éviter d’attribuer à un être humain le qualificatif honorifique de « père », qu’il réserverait ainsi à Dieu.The Septuagint (the former Greek translation of the Hebraic Bible of Isaias refuses twice to a person the name « father » which the Hebrew text gave him; at the same time, it creates for these people royal features, or stresses them. It is possible that the translator wanted to avoid attributing to a human being the honorary term of « father », that he would so reserve for God.

  18. Post traumatic brain perfusion SPECT analysis using reconstructed ROI maps of radioactive microsphere derived cerebral blood flow and statistical parametric mapping

    Directory of Open Access Journals (Sweden)

    Gonzalez-Brito Manuel

    2008-02-01

    Full Text Available Abstract Background Assessment of cerebral blood flow (CBF by SPECT could be important in the management of patients with severe traumatic brain injury (TBI because changes in regional CBF can affect outcome by promoting edema formation and intracranial pressure elevation (with cerebral hyperemia, or by causing secondary ischemic injury including post-traumatic stroke. The purpose of this study was to establish an improved method for evaluating regional CBF changes after TBI in piglets. Methods The focal effects of moderate traumatic brain injury (TBI on cerebral blood flow (CBF by SPECT cerebral blood perfusion (CBP imaging in an animal model were investigated by parallelized statistical techniques. Regional CBF was measured by radioactive microspheres and by SPECT 2 hours after injury in sham-operated piglets versus those receiving severe TBI by fluid-percussion injury to the left parietal lobe. Qualitative SPECT CBP accuracy was assessed against reference radioactive microsphere regional CBF measurements by map reconstruction, registration and smoothing. Cerebral hypoperfusion in the test group was identified at the voxel level using statistical parametric mapping (SPM. Results A significant area of hypoperfusion (P Conclusion The suitability of SPM for application to the experimental model and ability to provide insight into CBF changes in response to traumatic injury was validated by the SPECT SPM result of a decrease in CBP at the left parietal region injury area of the test group. Further study and correlation of this characteristic lesion with long-term outcomes and auxiliary diagnostic modalities is critical to developing more effective critical care treatment guidelines and automated medical imaging processing techniques.

  19. Post traumatic brain perfusion SPECT analysis using reconstructed ROI maps of radioactive microsphere derived cerebral blood flow and statistical parametric mapping.

    Science.gov (United States)

    McGoron, Anthony J; Capille, Michael; Georgiou, Michael F; Sanchez, Pablo; Solano, Juan; Gonzalez-Brito, Manuel; Kuluz, John W

    2008-02-29

    Assessment of cerebral blood flow (CBF) by SPECT could be important in the management of patients with severe traumatic brain injury (TBI) because changes in regional CBF can affect outcome by promoting edema formation and intracranial pressure elevation (with cerebral hyperemia), or by causing secondary ischemic injury including post-traumatic stroke. The purpose of this study was to establish an improved method for evaluating regional CBF changes after TBI in piglets. The focal effects of moderate traumatic brain injury (TBI) on cerebral blood flow (CBF) by SPECT cerebral blood perfusion (CBP) imaging in an animal model were investigated by parallelized statistical techniques. Regional CBF was measured by radioactive microspheres and by SPECT 2 hours after injury in sham-operated piglets versus those receiving severe TBI by fluid-percussion injury to the left parietal lobe. Qualitative SPECT CBP accuracy was assessed against reference radioactive microsphere regional CBF measurements by map reconstruction, registration and smoothing. Cerebral hypoperfusion in the test group was identified at the voxel level using statistical parametric mapping (SPM). A significant area of hypoperfusion (P TBI. Statistical mapping of the reference microsphere CBF data confirms a focal decrease found with SPECT and SPM. The suitability of SPM for application to the experimental model and ability to provide insight into CBF changes in response to traumatic injury was validated by the SPECT SPM result of a decrease in CBP at the left parietal region injury area of the test group. Further study and correlation of this characteristic lesion with long-term outcomes and auxiliary diagnostic modalities is critical to developing more effective critical care treatment guidelines and automated medical imaging processing techniques.

  20. Post traumatic brain perfusion SPECT analysis using reconstructed ROI maps of radioactive microsphere derived cerebral blood flow and statistical parametric mapping

    OpenAIRE

    Gonzalez-Brito Manuel; Solano Juan; Sanchez Pablo; Georgiou Michael F; Capille Michael; McGoron Anthony J; Kuluz John W

    2008-01-01

    Abstract Background Assessment of cerebral blood flow (CBF) by SPECT could be important in the management of patients with severe traumatic brain injury (TBI) because changes in regional CBF can affect outcome by promoting edema formation and intracranial pressure elevation (with cerebral hyperemia), or by causing secondary ischemic injury including post-traumatic stroke. The purpose of this study was to establish an improved method for evaluating regional CBF changes after TBI in piglets. Me...

  1. Post traumatic brain perfusion SPECT analysis using reconstructed ROI maps of radioactive microsphere derived cerebral blood flow and statistical parametric mapping

    International Nuclear Information System (INIS)

    McGoron, Anthony J; Capille, Michael; Georgiou, Michael F; Sanchez, Pablo; Solano, Juan; Gonzalez-Brito, Manuel; Kuluz, John W

    2008-01-01

    Assessment of cerebral blood flow (CBF) by SPECT could be important in the management of patients with severe traumatic brain injury (TBI) because changes in regional CBF can affect outcome by promoting edema formation and intracranial pressure elevation (with cerebral hyperemia), or by causing secondary ischemic injury including post-traumatic stroke. The purpose of this study was to establish an improved method for evaluating regional CBF changes after TBI in piglets. The focal effects of moderate traumatic brain injury (TBI) on cerebral blood flow (CBF) by SPECT cerebral blood perfusion (CBP) imaging in an animal model were investigated by parallelized statistical techniques. Regional CBF was measured by radioactive microspheres and by SPECT 2 hours after injury in sham-operated piglets versus those receiving severe TBI by fluid-percussion injury to the left parietal lobe. Qualitative SPECT CBP accuracy was assessed against reference radioactive microsphere regional CBF measurements by map reconstruction, registration and smoothing. Cerebral hypoperfusion in the test group was identified at the voxel level using statistical parametric mapping (SPM). A significant area of hypoperfusion (P < 0.01) was found as a response to the TBI. Statistical mapping of the reference microsphere CBF data confirms a focal decrease found with SPECT and SPM. The suitability of SPM for application to the experimental model and ability to provide insight into CBF changes in response to traumatic injury was validated by the SPECT SPM result of a decrease in CBP at the left parietal region injury area of the test group. Further study and correlation of this characteristic lesion with long-term outcomes and auxiliary diagnostic modalities is critical to developing more effective critical care treatment guidelines and automated medical imaging processing techniques

  2. Osteoarthritic Cartilage is more Homogeneous than Healthy Cartilage – Identification of a Superior ROI Co-localised with a Major Risk Factor for Osteoarthritis

    DEFF Research Database (Denmark)

    Qazi, Arish Asif; Dam, Erik B.; Nielsen, Mads

    2007-01-01

    Rationale and Objectives Cartilage loss as determined by magnetic resonance imaging (MRI) or joint space narrowing as determined by x-ray is the result of cartilage erosion. However, metabolic processes within the cartilage that later result in cartilage loss may be a more sensitive assessment...... method for early changes. Recently, it was shown that cartilage homogeneity visualized by MRI representing the biochemical changes undergoing in the cartilage is a potential marker for early detection of knee osteoarthritis (OA) and is also able to significantly separate groups of healthy subjects from...... those with OA. The purpose of this study was twofold. First, we wished to evaluate whether the results on cartilage homogeneity from the previous study can be reproduced using an independent population. Second, based on the homogeneity framework, we present an automatic technique that partitions...

  3. Deployment Area Selection and Land Withdrawal/Acquisition. M-X/MPS (M-X/Multiple Protective Shelter) Environmental Technical Report. Texas ROI (Region of Influence).

    Science.gov (United States)

    1981-10-02

    C-<a wa-w7-> 4 -0. C zt ə C; 4W ɜ : rZ)zcz ɜ > -(yC4 w 4 < < Z < ’w0 4 C ( (C 0Z a C-- Zaw - - W0 U )-20 :3ZZ, U- ZZCzr. a> C U a a.C. Co 0o00 0 0...zWOWI.+0L tn 0 .4 z l-0uK0WznUof ’ 00 0. 0 -0. IL 9 -- . I J-Z𔃼 0 U.J In V 1 w ul a)l-0 tun 0 In 0 0 U (x> m.~ Z V)I >1-w o 00 3In 0 w 0.-Q.- ik .0

  4. L'influence occidentale sur le développement du théâtre moderne siamois : le cas du Roi Vajiravudh (1910-1925)

    OpenAIRE

    Inthano , Theeraphong

    2013-01-01

    Siam – Thailand as it has been known for several decades – is the result of a mix of people, cultures and literatures, which is still dynamic nowadays. Western influence appeared there at the beginning of the 16th century and increased very quickly during the 19th century when its kings had to prepare the kingdom to face the British and Frenchcolonial greed. King Vajiravudh (1910-1925), who studied about ten years in Great Britain, tried to make Occidental-style drama become well-known with h...

  5. Table des coupes

    OpenAIRE

    Delarue, G.

    2014-01-01

    2 vers F M 6 6 ………………………... 16 Les Orphelins et la mère ressuscitée 6 6 ……… ass : é………… 49 Le Moine et la vache 7 7 ……… ass : a………… 35 Le Bûcheron mal marié 7 7 ……… ass : an ………. 48 La Dame au miroir d’argent 7 7 ……… ass : é ………… 27 La Fontaine troublée 7 7 ……… ass : i ………… 24 L’Écolier de Paris 8 8 ……… ass : é ………… 19 C’est dans la grand’ ville de Bretagne (version D) M F 6 6 ……… ass : è-e ………… 13 Le Petit Roi d’Angleterre 6 6 ……… ass : i-e ………….. 4 La Blanche Biche 8 6 ……… ass : an-e ……….. ...

  6. High speed UNIBUS-VME interface

    International Nuclear Information System (INIS)

    Olmos, P.

    1987-01-01

    An interface between VME an the UNIBUS of PDP or VAX computer is presented. The system supports high speed parallel communication (up to 1MB/S) and is composed of two modules. One of these is a commercial DR11M board which performs DMA transfers between UNIBUS and the external word. The other is a VME module specifically developed for this application. The interface has been tested under VMS operating system in VAX and VALET-PLUS system for the VME Bus. We describe in detail the VME module and its connection with the DR11M. Software, both in WMS and VALET, is also described. (Author) 7 refs

  7. High speed UNIBUS-VME interface; Interface de alta velocidad VME-UNIBUS

    Energy Technology Data Exchange (ETDEWEB)

    Olmos, P

    1987-07-01

    An interface between VME an the UNIBUS of PDP or VAX computer is presented. The system supports high speed parallel communication (up to 1MB/S) and is composed of two modules. One of these is a commercial DR11M board which performs DMA transfers between UNIBUS and the external word. The other is a VME module specifically developed for this application. The interface has been tested under VMS operating system in VAX and VALET-PLUS system for the VME Bus. We describe in detail the VME module and its connection with the DR11M. Software, both in WMS and VALET, is also described. (Author) 7 refs.

  8. 2367 Ma Dharwar giant dyke swarm, Dharwar craton, southern India

    Indian Academy of Sciences (India)

    44

    Torsvik T H and Smethurst M A 1999 Plate Tectonic modeling: Virtual Reality with GMAP;. 406. Computer & Geosciences 25 395-402. 407. Valet J P, Besse J, Kumar A, Vadakke-Chanat S, and Philippe E 2014 The intensity of the. 408 geomagnetic field from 2.4 Ga old Indian dykes; Geochemis, Geophys, Geosys. 15 doi.

  9. 26 CFR 1.217-1 - Deduction for moving expenses paid or incurred in taxable years beginning before January 1, 1970.

    Science.gov (United States)

    2010-04-01

    ..., nor an individual such as a servant, governess, chauffeur, nurse, valet, or personal attendant. (c... reimbursed $600 by M. After working for M for a period of 3 months, A becomes dissatisfied with the job and... return will become invalid if, as of the date prescribed by law for filing the return, it is not possible...

  10. Climatic influence in NRM and 10 Be-derived geomagnetic paleointensity data

    NARCIS (Netherlands)

    1999-01-01

    One can determine geomagnetic paleointensities from natural remanent magnetizations (NRM) and by inverting production rates of cosmogenic isotopes such as 10 Be and 14 C. Recently, two independently derived 200-kyr stacks [Y. Guyodo, J.-P. Valet, Relative variations in geomagnetic intensity from

  11. Fööniks Katõni tuhast / Timothy Garton Ash

    Index Scriptorium Estoniae

    Garton Ash, Timothy, 1955-

    2010-01-01

    Autor kirjeldab 1940. aastal NSV Liidu võimude poolt korraldatud Poola ohvitseride hukkamist ja edasist suurt valet, millega ühinesid ka lääneriigid. Võrdleb rahvusvahelise reaktsiooni kontrasti tollase veresauna ning 10. aprillil 2010. aastal Poola presidendi ja tema kaaskonna lennukiga toimunud katastroofi vahel

  12. EMMA - gordost Finljandii / Viktoria Panova

    Index Scriptorium Estoniae

    Panova, Viktoria

    2006-01-01

    Soomes Espoos avati uus kaasaegse kunsti muuseum EMMA (Espoo Museum of Modern Art). Põhiekspositsiooni kõrval saab näha nelja ajutist näitust: Kazimir Malevitshi maale, ühenduse "Bubnovõi valet" loomingut, Shirin Neshati foto- ja videoloomingut ning Timo Kelaranta fotokunsti

  13. La culture juridique des clercs dans le Royaume de Hongrie sous les rois angevins au XIVe siècle - Judical Culture of Clerics in the Medieval Hungarian Kingdom under the Angevin Kings (14th Century

    Directory of Open Access Journals (Sweden)

    KISS, Gergely

    2015-07-01

    Full Text Available Th e present work aims to show the main elements of the legal culture of the clergy in the 14th century-Hungary. Th e starting point is the explanation of the notion “legal culture”, the presentation of its three main elements, the legal service at the royal court, the activities of the loca credibilia and of the ecclesiastical courts, the personal legal culture. Th e paper shows not only the connection of the legal culture and the development of the bureaucratic writing, the chancellery, but the eff ects of the university studies as well, its main turning points and periods (Paris, Bologna, Padova, with a special focus on the Angevin era (14th century. We can state that the legal culture of Hungarian clergy underwent several changes in this era. With the laicisation of the bureaucratic activities, the royal court needed representatives who had legal experiences for its international aff airs, thus it favoured the change of the legal culture of the clergy at the court. Th e same period is also very important because of the ecclesiastical and secular justice. Several elements of personal legal culture (e. g. collection are also presented.

  14. Shakespeare revisité, entre fidélité et parodie : de La Nuit des Rois à Shake de Dan Jemmett Shakespeare Revisited, Between Fidelity and Parody: From Twelfth Night to Shake by Dan Jemmett

    Directory of Open Access Journals (Sweden)

    Isabelle Schwartz-Gastine

    2009-11-01

    Full Text Available William Shakespeare himself was a master of re-writing older material as he abundantly used this technique, which was totally justified at the Renaissance, to compose his poems or plays, from various sources whether literary (prose or verse, historical, or any other—and sometimes most unusual—background.The play I am considering in this paper is a very recent re-writing in English by Dan Jemmett (Peter Brook’s son-in-law, but performed in Marie-Paul Remo’s French translation at the Vidy Theatre in Lausanne during the 2001 season. It is called Shake, with a modest sub-title « around Twelfth Night », but which is indeed at the heart of the topic.Through the exploration of three themes: symmetry (of situations, of twin binarities, love’s misunderstanding, and music, I will argue that this comedy, whose title is a mix between the name of the Bard and the etymological meaning of the verb “to shake” as far as traditions are concerned, is faithful to the spirit (rather than the letter of the Shakespearean original in a very healthy comic vein.It is not worth wondering if the spectators fully understood the meaning of this comedy in which the four actors change roles all the time: their frequent bursts of laughter clearly showed that they enjoyed the spirit of the comedy, whether they knew Twelfth Night or not.

  15. Análisis del impacto financiero de una nueva herramienta de evaluación basada en el indicador ROI para eventos promocionales en la empresa Colgate Palmolive Costa Rica

    OpenAIRE

    Castro Jiménez, Sofía

    2009-01-01

    Tesis de maestría --Universidad de Costa Rica. Posgrado en Administración y Dirección de Empresas. Maestría Profesional en Administración y Dirección de Empresas con énfasis en Finanzas, 2009 El objetivo general del trabajo es analizar el beneficio de la utilización de una herramienta de valuación del rendimiento sobre la inversión en la toma de decisiones en el área comercial de la empresa Colgate Palmolive Costa Rica. La organización investigada se dedica a la importación y venta dir...

  16. Lifetime measurements and shape coexistence: from small arrays to GAMMASPHERE

    International Nuclear Information System (INIS)

    Garg, Umesh

    1996-01-01

    In this paper some of the recent results obtained with the Notre Dame recoil distance method (RDM) device are presented and plans for a similar device being fabricated at Notre Dame for use in conjunction with GAMMASPHERE are discussed. 15 refs., 4 figs., 3 tabs

  17. Substantial production of drosophilin A methyl ether (tetrachloro-1,4-dimethoxybenzene) by the lignicolous basidiomycete Phellinus badius in the heartwood of mesquite ( Prosopis juliflora) trees

    Science.gov (United States)

    Garvie, Laurence A. J.; Wilkens, Barry; Groy, Thomas L.; Glaeser, Jessie A.

    2015-04-01

    Toxic organohalogen pollutants produced as by-products of industrial processes, such as chloroform and polychlorinated dibenzo- p-dioxins, also have significant natural sources. A substantial terrestrial source of halogenated organics originates from fungal decay of wood and leaf litter. Here we show that the lignicolous basidiomycete Phellinus badius deposits up to 30,000 mg of the halogenated metabolite drosophilin A methyl ether (DAME, tetrachloro-1,4-dimethoxybenzene) per kilogram of decayed heartwood in the mesquite Prosopis juliflora. DAME occurs as clusters of glassy crystals up to 1 mm long within the decayed heartwood. In addition, the Phellinus badius basidiocarps contain an average of 24,000 mg DAME/kg dried fruiting body, testifying to the significant translocation and accumulation of Cl accompanied by DAME biosynthesis. The high DAME concentrations attest to the substantial Cl content of the heartwood, which averages near 5,000 ppm, with Cl/K near 1:1, consistent with an inorganic chloride precursor. Phellinus badius has a circumglobal distribution in the tropics and subtropics, where it is widely distributed on hardwoods and commonly associated with decay of mesquite. There is the potential for extensive DAME formation within decayed heartwood worldwide given the extensive range of Phellinus badius and its propensity to form DAME within mesquites. Further, DAME production is not limited to Phellinus badius but occurs in a range of lignicolous basidiomycetes, suggesting a significant natural reservoir for this chloroaromatic with potential environmental implications.

  18. Effect of gamma irradiation on morphology of leaf and shoot apex of ginger, turmeric and mango-ginger

    International Nuclear Information System (INIS)

    Raju, E.C.; Patel, J.D.; Shah, J.J.

    1980-01-01

    Effect of 2, 5, 10, 20 and 30 kR gamma irradiation on morphology and growth of ginger (Zingiber officinale Rosc.), Turmeric (Curcuma domestica Valet) and mango-ginger (Curcuma amada Roxb), and shoot apical organisation in ginger was studied. Higher doses (20 and 30 kR) of radiation proved to be lethal. Morphological aberrations in foliage leaves are reported. Irradiated shoot apices appear histologically inert. (auth.)

  19. Motion Planning in Dynamic Environments with Application to Self-Driving Vehicles

    OpenAIRE

    Schwesinger, Ulrich

    2017-01-01

    This thesis is concerned with the development of trajectory planning approaches targeting autonomous driving applications in dynamic environments shared with other traffic participants. The goal is to enable mobile robots to operate in challenging environments, characterized by narrow spaces and close proximity of other agents. With their broad range of private and commercial applications reaching from logistics to valet parking to name a few, driverless vehicles have gained increasing at...

  20. Club Ed: This University Is at Your Service

    Science.gov (United States)

    Bartlett, Thomas

    2008-01-01

    Lots of colleges treat students like customers. How many have an ice-cream truck? And valet parking? And a concierge desk? And an enormous hot tub in the middle of the campus? Not too many. Actually, only one: High Point University. This once-sleepy institution in the hills of North Carolina has undergone a revival in the last couple of years,…

  1. Effect of gamma irradiation on morphology of leaf and shoot apex of ginger, turmeric and mango-ginger

    Energy Technology Data Exchange (ETDEWEB)

    Raju, E C; Patel, J D; Shah, J J [Sardar Patel Univ., Vallabh Vidyanagar (India). Dept. of Biosciences

    1980-06-01

    Effect of 2, 5, 10, 20 and 30 kR gamma irradiation on morphology and growth of ginger (Zingiber officinale Rosc.), Turmeric (Curcuma domestica Valet) and mango-ginger (Curcuma amada Roxb), and shoot apical organisation in ginger was studied. Higher doses (20 and 30 kR) of radiation proved to be lethal. Morphological aberrations in foliage leaves are reported. Irradiated shoot apices appear histologically inert.

  2. Defining Creativity with Discovery

    OpenAIRE

    Wilson, Nicholas Charles; Martin, Lee

    2017-01-01

    The standard definition of creativity has enabled significant empirical and theoretical advances, yet contains philosophical conundrums concerning the nature of novelty and the role of recognition and values. In this work we offer an act of conceptual valeting that addresses these issues and in doing so, argue that creativity definitions can be extended through the use of discovery. Drawing on dispositional realist philosophy we outline why adding the discovery and bringing into being of new ...

  3. Soomlased saavad järjekordse nüüdiskunsti muuseumi / Markku Valkonen ; interv. Reet Varblane

    Index Scriptorium Estoniae

    Valkonen, Markku

    2006-01-01

    Intervjuu 13. X avatava Espoo kaasaegse kunsti muuseumi EMMA (Espoo museum of modern art) direktori Markku Valkoneniga. 1960-ndatel valminud Aarno Ruusuvuori projekteeritud trükikoja hoone renoveeriti ja kohandati muuseumihooneks, kus paikneb EMMA kõrval veel neli muuseumi. Kaasaegsest kunstist arusaamise õpetamisest Soomes, EMMA kogudest, esimestest näitustest (Kazimir Malevitsh, Bubnovõi (tekstis: Bubnoi) Valet, Shirin Neshat, Timo Kelaranta)

  4. Adsorption properties and inhibition of mild steel corrosion in hydrochloric solution by some newly synthesized diamine derivatives: Experimental and theoretical investigations

    Energy Technology Data Exchange (ETDEWEB)

    Herrag, L.; Hammouti, B.; Elkadiri, S.; Aouniti, A. [Laboratoire de Chimie Appliquee et Environnement, LCAE-URAC18, Faculte des Sciences, Universite Mohammed Premier, B.P. 717, M-6000 Oujda (Morocco); Jama, C. [Unite Materiaux et Transformations (UMET), Ingenierie des Systemes Polymeres, CNRS UMR 8207, ENSCL, B.P. 90108, F-59652 Villeneuve d' Ascq Cedex (France); Vezin, H. [Laboratoire de Spectrochimie Infrarouge et Raman (LASIR), UMR-CNRS 8516, Universite des Sciences et Technologies de Lille, Batiment C5, F-59655 Villeneuve d' Ascq Cedex (France); Bentiss, F., E-mail: fbentiss@enscl.f [Laboratoire de Chimie de Coordination et d' Analytique (LCCA), Faculte des Sciences, Universite Chouaib Doukkali, B.P. 20, M-24000 El Jadida (Morocco)

    2010-09-15

    New diamine derivatives, namely 2-[{l_brace}2-[bis-(2-hydroxyethyl)amino]ethyl{r_brace}(2-hydroxyethyl)amino]ethanol (DAME) and 2-[{l_brace}2-[bis-(2-hydroxyethyl)amino]ethyl{r_brace}(2-hydroxyethyl)amino]propanol (DAMP) were synthesised and their inhibitive action against the corrosion of mild steel in 1 M HCl solution were investigated at 308 K. The detailed study of DAME is given using gravimetric measurements and polarization curves method. Results show that DAME is a good inhibitor and inhibition efficiency reaches 91.7% at 10{sup -3} M. Tafel polarization study revealed that DAME acts as a mixed-type inhibitor. The inhibitor adsorption process in mild steel/DAME/hydrochloric acid system was studied at different temperatures (308-353 K) by means of weight loss measurements. The adsorption of DAME on steel surface obeyed Langmuir's adsorption isotherm. The kinetic and thermodynamic parameters for mild steel corrosion and inhibitor adsorption, respectively, were determined and discussed. The comparative study of inhibitive performance of the two diamine derivatives revealed that DAME is more effective than DAMP. Quantitative Structure-Activity Relationship (QSAR) approach has been conducted in attempt to correlate the corrosion inhibition properties of these diamine derivatives with their calculated quantum chemical parameters.

  5. Selection of the Best Security Controls for Rapid Development of Enterprise-Level Cyber Security

    Science.gov (United States)

    2017-03-01

    investment (ROI) assessment. This ROI assessment entailed consideration of both the likely/expected security benefits of each candidate security control...the top 10–20 cyber security controls, where ranking was based upon a return on investment (ROI) assessment. This ROI assessment entailed...11  II.  CYBER SECURITY: UNDERLYING PRINCIPLES, FUNDAMENTALS AND BEST PRACTICES .................................................13  A

  6. Hella hingega karmid naised / Krista Kaer

    Index Scriptorium Estoniae

    Kaer, Krista

    1996-01-01

    Tänapäeva kriminaalromaani inglise ja ameerika autoritest (Dame Phyllis Dorothy James, Joan Smith, Lynda La Plante (inglise); Sara Paretsky, Sue Grafton, Patricia Cornwell (ameerika) ja nende poolt loodud naisdetektiivi kujudest

  7. Ühe imago anatoomia ehk pilk kinokriitika kööki / Ilmar Raag

    Index Scriptorium Estoniae

    Raag, Ilmar, 1968-

    1996-01-01

    Walt Disney kompanii esitles Pariisis täispikka muusikalist joonisfilmi 'Jumalaema kiriku kellamees' (Victor Hugo romaani 'Jumalaema kirik Pariisis' ainetel "The Hunchback of Notre Dame", režissöörid Gary Trousdale, Kirk Wise, USA 1996)

  8. the dilemma of traditional and 21st century pastoral ministry

    African Journals Online (AJOL)

    2010-09-03

    Sep 3, 2010 ... scientific approach, will be applied in search of constructive change in church and ... church is discussed; the role of religious pedagogy as a transversal model is ...... Dames, G.E., 1989, 'n Studie van kategetiese modelle met.

  9. Personalized Opportunistic Computing for CMS at Large Scale

    CERN Multimedia

    CERN. Geneva

    2015-01-01

    **Douglas Thain** is an Associate Professor of Computer Science and Engineering at the University of Notre Dame, where he designs large scale distributed computing systems to power the needs of advanced science and...

  10. Riccioli Revisited. A New Analysis of Giovanni Battista Riccioli’s New Almagest

    Directory of Open Access Journals (Sweden)

    Anna-Luna Post

    2016-09-01

    Full Text Available Review of: Christopher M. Graney, Setting Aside All Authority. Giovanni Battista Riccioli and the Science against Copernicus in the Age of Galileo, University of Notre Dame Press, 2015, 270 p., ill., ISBN: 9780268029883, $29.00.

  11. Tehissüda päästis surija elu / Markus Larsson

    Index Scriptorium Estoniae

    Larsson, Markus

    2001-01-01

    Esimese täielikult inimkehasse opereeritava alalise kunstliku plastmassist ja titaanist asendussüdame sai mees, kelle nime ja päritolu ei avalikustata, üleeile Kentuky osariigis Louisvilles Jewish Hospitalis

  12. Karuteene kirjandusele / Jaan Puhvel

    Index Scriptorium Estoniae

    Puhvel, Jaan, 1932-

    2007-01-01

    Arvustus: Rubulis, Aleksis. Baltic literature : a survey of Finnish, Estonian, Latvian, and Lithuanian literatures. London : The University of Notre Dame Press, 1970. Ilmunud: Books Abroad, 1971, nr. 45, lk. 354-355, pealkirjata

  13. Plaadid / Mart Normet

    Index Scriptorium Estoniae

    Normet, Mart, 1979-

    2006-01-01

    Uutest heliplaatidest Põhjamaade Hirm "Maailma südame põhjast", "F Com Essentials", Q-Continuum Presents "This Is The Marienhof", Def Leppard "Yrah!", Nouvelle Vague "Bande A'Part", Leningrad Cowboys "Zombies Paradise", Sao Paris "La"

  14. Rakvere suvelavastused panustavad kokkuhoiule

    Index Scriptorium Estoniae

    2009-01-01

    5. juunil 2009 esietendub Rakvere pangamajas Jean Genet' "Toatüdrukud", lavastajaks Hendrik Toompere ning 11. juunil Rakvere rahvaaias Astrid Lindgreni "Vennad Lõvisüdamed", lavastaja Üllar Saaremäe

  15. Thermal Design for a Diffraction-Limited Doppler Spectrometer

    Data.gov (United States)

    National Aeronautics and Space Administration — The Univ. of Notre Dame is building a new high-resolution spectrometer named “iLocater” to achieve unprecedented radial velocity (RV) precision for stellar Doppler...

  16. Active Visual SLAM with Exploration for Autonomous Underwater Navigation

    Science.gov (United States)

    2012-01-01

    tourism. Reconstruction of Notre Dame de Paris (Snavely et al., 2006). (c) Web-scale landmark recognition engine (Zheng et al., 2009). eters for an...structures, such as Notre Dame Cathedral in Paris and the Great Wall of China (Figure 1.3(b)), using photographs compiled from the Internet. Given the...Exhibition, vol. 3, pp. 378–383, Brest , France. Brown, M., and D. G. Lowe (2005), Unsupervised 3D object recognition and reconstruction in unordered

  17. Synthesis and evaluation of N,N-di-alkyl-2-methoxyacetamides for the separation of U(VI) and Pu(IV) from nitric acid medium

    Energy Technology Data Exchange (ETDEWEB)

    Kumaresan, R.; Prathibha, T.; Selvan, B. Robert; Venkatesan, K.A.; Antony, M.P. [Indira Gandhi Centre for Atomic Research, Kalpakkam (India). Fuel Chemistry Div.

    2017-07-01

    The homologs of N,N-di-alkyl-2-methoxyacetamides (DAMeOA) having three different alkyl chains varying from hexyl to decyl (C{sub 6}, C{sub 8} and C{sub 10}) were synthesized and characterized by NMR and IR spectral analyses. Extraction behavior of U(VI) and Pu(IV) from nitric acid medium in a solution of 0.5 M of DAMeOA in n-dodecane (n-DD) was studied and the results were compared with those obtained using N,N-di-hexyloctanamide (DHOA) in n-dodecane. The effect of various parameters on the distribution ratio of U(VI) and Pu(IV) in DAMeOA was studied. The extraction of nitric acid increased with decrease in chain length of alkyl group attached to amidic nitrogen atom of DAMeOA and the conditional nitric acid extraction constant was determined. The extraction of nitric acid in DAMeOA/n-DD resulted in the formation of third phase in organic phase and the third phase occurred early with DAMeOA having smaller alkyl chain length. In contrast to this, the distribution ratio (D) of U(VI) and Pu(IV) in DAMeOA/n-DD increased with increase in the concentration of nitric acid and with increase in the chain length of alkyl group attached to amidic nitrogen atom of DAMeOA. The stoichiometry of the metal - solvate was determined from the slope of extraction data. Quantitative recovery of uranium and plutonium from the loaded organic phase was achieved using dilute nitric acid.

  18. Tim, Jan Lucas ja Karl Robert - vennad üheks kuuks / Maris Laurits

    Index Scriptorium Estoniae

    Laurits, Maris

    2009-01-01

    Rakvere Teatri suvelavastuse "Vennad Lõvisüdamed" kaks Karli osatäitjat Jan Lucas Videvik ja Tim Leesnurm ning Joonatani osatäitja Karl Robert Saaremäe tegid Loksal Kaldmaa talus ratsasõiduproove. Üllar Saaremäe lavastuse "Vennad Lõvisüdamed" (Astrid Lindgreni samanimelise jutustuse järgi) esietendus on 11. juunil Rakvere teatri taga aias

  19. Contribution méthodologique pour la connaissance du rôle des acteurs locaux dans la réalisation d’un projet de territoire : le cas du projet de la réserve naturelle de Réghaia dans la zone côtière Est de l’Algérois

    Directory of Open Access Journals (Sweden)

    Mohamed Larid

    2010-12-01

    Full Text Available Dans le domaine de la gestion territoriale, on peut constater le manque et l’insuffisance des outils d’analyse des stratégies des acteurs. Ceci est encore plus ressenti dans les sociétés du monde en développement, où les mécanismes de gestion et d’administration du territoire sont souvent dysfonctionnels. Une meilleure connaissance des relations entre les intervenants dans l’application d’un projet territorial, permet des éclairages sur le contexte de sa réalisation et des orientations suceptibles d’avantager sa réussite. Les repères sur les logiques de comportement aident à cerner les enjeux et à poser les questions clés, pour atteindre les objectifs fixés et conforter l’accomplissement des actions arrêtées. Le présent article rend compte des résultats d’une expérience de terrain, réalisée dans une zone côtière humide de la région algéroise. Il propose une contribution, sur le plan méthodologique, pour la collecte d’informations pertinentes sur le comportement et les possibilités des acteurs dans la réalisation d’un projet local, orienté vers la valorisation et la protection d’un patrimoine naturel important.In the field of territorially management, we can see the insufficiency of analysis tools on the strategies of actors. This is even more crucial in case of the developing world, where the management and territorially administration are often dysfunctional. Better knowledge of the roles of stakeholders in the implementation of a territorial project, provides insights of the context of its implementation and guidance likely to favor its success. The logical behavior help to identify issues and key questions, to achieve the objectives and ensure the completion of actions agreed. This article reports the results of a field experiment conducted in a coastal wetland in the region of Algiers. It offers a contribution, on the methodology for collecting information on the behavior and capabilities of stakeholders in the implementation of a local project, oriented to the development and protection of an important natural heritage

  20. Normalized STEAM-based diffusion tensor imaging provides a robust assessment of muscle tears in football players: preliminary results of a new approach to evaluate muscle injuries.

    Science.gov (United States)

    Giraudo, Chiara; Motyka, Stanislav; Weber, Michael; Karner, Manuela; Resinger, Christoph; Feiweier, Thorsten; Trattnig, Siegfried; Bogner, Wolfgang

    2018-02-08

    To assess acute muscle tears in professional football players by diffusion tensor imaging (DTI) and evaluate the impact of normalization of data. Eight football players with acute lower limb muscle tears were examined. DTI metrics of the injured muscle and corresponding healthy contralateral muscle and of ROIs drawn in muscle tears (ROI tear ) in the corresponding healthy contralateral muscle (ROI hc_t ) in a healthy area ipsilateral to the injury (ROI hi ) and in a corresponding contralateral area (ROI hc_i ) were compared. The same comparison was performed for ratios of the injured (ROI tear /ROI hi ) and contralateral sides (ROI hc_t /ROI hc_i ). ANOVA, Bonferroni-corrected post-hoc and Student's t-tests were used. Analyses of the entire muscle did not show any differences (p>0.05 each) except for axial diffusivity (AD; p=0.048). ROI tear showed higher mean diffusivity (MD) and AD than ROI hc_t (ptear than in ROI hi and ROI hc_t (ptear than in any other ROI (pmuscle tears in athletes especially after normalization to healthy muscle tissue. • STEAM-based DTI allows the investigation of muscle tears affecting professional football players. • Fractional anisotropy and mean diffusivity differ between injured and healthy muscle areas. • Only normalized data show differences of fibre tracking metrics in muscle tears. • The normalization of DTI-metrics enables a more robust characterization of muscle tears.

  1. Kurja lilled / Charles Baudelaire ; prantsuse k. tlk. Ain Kaalep ja Märt Väljataga

    Index Scriptorium Estoniae

    Baudelaire, Charles

    2000-01-01

    Sisu: Õnnistamine ; "Jumaldan Sind ma siin, öist taevavõlvi nägev / tlk. Ain Kaalep ; Palkon / tlk. Märt Väljataga ; Kodukäija ; Kassid / tlk. A. Kaalep ; Armastades valet / tlk. M. Väljataga ; Üksildase vein ; Päeva lõpp / tlk. Ain Kaalep. Orig.: Bénédiction ; "Je t'adore ̉ l'égal de la vo͠te nocturne ; Le balcon ; Les chats ; L'amour du mensonge ; Le vin du solitaire ; La fin de la journée

  2. Upplevelser av "Employer Branding" : En kvalitativ fallstudie av anställda hos BA

    OpenAIRE

    Hermansson, Otto; Elisabeth, Mackenhauer

    2016-01-01

    Syftet med denna studie var att undersöka hur medarbetarna på BA (fiktivt namn) upplever organisationens interna Employer Branding-arbete samt att belysa de aspekter som eventuellt skiljer strategi mot upplevelse. Det gjordes ett målinriktat urval av organisation medan valet av deltagare var ett slumpmässigt urval vilket resulterade i åtta respondenter (n= 8). Studien var en kvalitativ fallstudie med ett psykologiskt angreppssätt och innehöll en ostrukturerad intervju som tillsammans m...

  3. Contextual advertising using Google AdWords and Google AdSense

    OpenAIRE

    Mihok, Radovan

    2008-01-01

    The thesis introduces contextual advertising on internet using Google AdWords. The paper describes individual steps of an ad campaign (product choosing, ad types, keywords), its management and success evaluation (calculation of ROI and modified ROI).

  4. Functionalized metal organic frameworks for effective capture of radioactive organic iodides

    KAUST Repository

    Li, Baiyan; Dong, Xinglong; Wang, Hao; Ma, Dingxuan; Tan, Kui; Shi, Zhan; Chabal, Yves J.; Han, Yu; Li, Jing

    2017-01-01

    Highly efficient capture of radioactive organic iodides (ROIs) from off-gas mixtures remains a substantial challenge for nuclear waste treatment. Current materials utilized for ROI sequestration suffer from low capacity, high cost (e.g. use of noble

  5. Return on Investment in the Public Sector

    National Research Council Canada - National Science Library

    Bigham, Joshua

    2004-01-01

    .... Development and application of ROI analysis is challenging in the public sector since most government organizations do not generate profit necessary for calculation of ROI in the manner in which it...

  6. Implementing a Process to Measure Return on Investment for Nursing Professional Development.

    Science.gov (United States)

    Garrison, Elisabeth; Beverage, Jodie

    Return on investment (ROI) is one way to quantify the value that nursing professional development brings to the organization. This article describes a process to begin tracking ROI for nursing professional development. Implementing a process of tracking nursing professional development practitioners' ROI increased awareness of the financial impact and effectiveness of the department.

  7. Return on Investment: A Placebo for the Chief Financial Officer... and Other Paradoxes

    Science.gov (United States)

    Andru, Peter; Botchkarev, Alexei

    2011-01-01

    Background: Return on investment (ROI) is one of the most popular evaluation metrics. ROI analysis (when applied correctly) is a powerful tool of evaluating existing information systems and making informed decisions on the acquisitions. However, practical use of the ROI is complicated by a number of uncertainties and controversies. The article…

  8. Returns to Investment in Ontario University Education, 1960-1990, and Implications for Tuition Fee Policy. Discussion Series, Issue 5.

    Science.gov (United States)

    Stager, David A. A.

    This analysis of Ontario's returns to investment and implications for tuition fee policy updates a 1989 publication titled "Focus on Fees." The paper examines: data on public and private return on investment (ROI) from university education, pattern of ROI rates over time, and impact of tuition fee levels on estimated ROI for various…

  9. Participation and Business Case Analysis of the Marine for Life Program

    National Research Council Canada - National Science Library

    Sanders, Shawn G

    2007-01-01

    .... The ROI analysis found that the M4L Program had a ROI of (154%) in 2004 and (202%) in 2005; however, analysis of ROI does include all costs and omits some of the non-quantifiable benefits of the programs, which may bias the results...

  10. Did you say “glacial”?

    CERN Multimedia

    Stephanie Hills

    2013-01-01

    “The situation is improving very slowly, but it’s glacial.” This is Dame Jocelyn Bell Burnell’s depressing assessment of the effects of the many and varied initiatives to increase the number of women working in science, technology, engineering and maths (STEM) careers in the UK.   Speaking at CERN as part of our own drive to increase diversity, the internationally renowned astronomer and passionate campaigner for increasing the number of women pursuing STEM careers emphasised the importance of tackling the problem at government level. “For decades, we have had very committed people doing great things in isolated initiatives but there’s not much to show for it,” said Dame Jocelyn. “We need political pressure and we’ve got to think about changing the science culture.” Getting both recognition and ownership of the problem at the highest levels of government is essential. Dame Jocelyn cited parental l...

  11. Research in high energy physics: Scintillating fiber detector development for the SSC: Annual progress report

    International Nuclear Information System (INIS)

    Ruchti, R.C.

    1988-01-01

    The scintillating fiber detector development program at the University of Notre Dame is divided into several components. These include: Research on scintillating glass fiber materials; Research on scintillating plastic fiber materials; Research on scintillating liquids in fiber capillaries; Studies of improvements in image intensification and light amplification of appropriate test and development facilities at Notre Dame. The overall goal of the program is to develop efficient scintillating fiber detectors with long, optical attenuation length, and excellent radiation resistance properties for tracking and microvertex detectors and as component active sampling materials for scintillation calorimetry. We now discuss each of these programs in turn. 2 figs., 3 tabs

  12. Evaluation of Deformable Image Coregistration in Adaptive Dose Painting by Numbers for Head-and-Neck Cancer

    Energy Technology Data Exchange (ETDEWEB)

    Olteanu, Luiza A.M., E-mail: AnaMariaLuiza.Olteanu@uzgent.be [Department of Radiotherapy, Ghent University Hospital, De Pintelaan, Ghent (Belgium); Madani, Indira; De Neve, Wilfried; Vercauteren, Tom; De Gersem, Werner [Department of Radiotherapy, Ghent University Hospital, De Pintelaan, Ghent (Belgium)

    2012-06-01

    Purpose: To assess the accuracy of contour deformation and feasibility of dose summation applying deformable image coregistration in adaptive dose painting by numbers (DPBN) for head and neck cancer. Methods and Materials: Data of 12 head-and-neck-cancer patients treated within a Phase I trial on adaptive {sup 18}F-FDG positron emission tomography (PET)-guided DPBN were used. Each patient had two DPBN treatment plans: the initial plan was based on a pretreatment PET/CT scan; the second adapted plan was based on a PET/CT scan acquired after 8 fractions. The median prescription dose to the dose-painted volume was 30 Gy for both DPBN plans. To obtain deformed contours and dose distributions, pretreatment CT was deformed to per-treatment CT using deformable image coregistration. Deformed contours of regions of interest (ROI{sub def}) were visually inspected and, if necessary, adjusted (ROI{sub def{sub ad}}) and both compared with manually redrawn ROIs (ROI{sub m}) using Jaccard (JI) and overlap indices (OI). Dose summation was done on the ROI{sub m}, ROI{sub def{sub ad}}, or their unions with the ROI{sub def}. Results: Almost all deformed ROIs were adjusted. The largest adjustment was made in patients with substantially regressing tumors: ROI{sub def} = 11.8 {+-} 10.9 cm{sup 3} vs. ROI{sub def{sub ad}} = 5.9 {+-} 7.8 cm{sup 3} vs. ROI{sub m} = 7.7 {+-} 7.2 cm{sup 3} (p = 0.57). The swallowing structures were the most frequently adjusted ROIs with the lowest indices for the upper esophageal sphincter: JI = 0.3 (ROI{sub def}) and 0.4 (ROI{sub def{sub ad}}); OI = 0.5 (both ROIs). The mandible needed the least adjustment with the highest indices: JI = 0.8 (both ROIs), OI = 0.9 (ROI{sub def}), and 1.0 (ROI{sub def{sub ad}}). Summed doses differed non-significantly. There was a trend of higher doses in the targets and lower doses in the spinal cord when doses were summed on unions. Conclusion: Visual inspection and adjustment were necessary for most ROIs. Fast automatic ROI

  13. Diffusion-weighted imaging of breast lesions: Region-of-interest placement and different ADC parameters influence apparent diffusion coefficient values

    Energy Technology Data Exchange (ETDEWEB)

    Bickel, Hubert; Pinker, Katja; Polanec, Stephan; Magometschnigg, Heinrich; Wengert, Georg; Spick, Claudio; Helbich, Thomas H.; Baltzer, Pascal [Medical University Vienna, Division of Molecular and Gender Imaging, Department of Biomedical Imaging and Image-Guided Therapy, Vienna (Austria); Bogner, Wolfgang [Medical University Vienna - MR Center of Excellence, Department of Biomedical Imaging and Image-Guided Therapy, Vienna (Austria); Bago-Horvath, Zsuzsanna [Medical University Vienna, Department of Pathology, Vienna (Austria)

    2017-05-15

    To investigate the influence of region-of-interest (ROI) placement and different apparent diffusion coefficient (ADC) parameters on ADC values, diagnostic performance, reproducibility and measurement time in breast tumours. In this IRB-approved, retrospective study, 149 histopathologically proven breast tumours (109 malignant, 40 benign) in 147 women (mean age 53.2) were investigated. Three radiologists independently measured minimum, mean and maximum ADC, each using three ROI placement approaches:1 - small 2D-ROI, 2 - large 2D-ROI and 3 - 3D-ROI covering the whole lesion. One reader performed all measurements twice. Median ADC values, diagnostic performance, reproducibility, and measurement time were calculated and compared between all combinations of ROI placement approaches and ADC parameters. Median ADC values differed significantly between the ROI placement approaches (p <.001). Minimum ADC showed the best diagnostic performance (AUC.928-.956), followed by mean ADC obtained from 2D ROIs (.926-.94). Minimum and mean ADC showed high intra- (ICC.85-.94) and inter-reader reproducibility (ICC.74-.94). Median measurement time was significantly shorter for the 2D ROIs (p <.001). ROI placement significantly influences ADC values measured in breast tumours. Minimum and mean ADC acquired from 2D-ROIs are useful for the differentiation of benign and malignant breast lesions, and are highly reproducible, with rapid measurement. (orig.)

  14. High-Performance Region-of-Interest Image Error Concealment with Hiding Technique

    Directory of Open Access Journals (Sweden)

    Shih-Chang Hsia

    2010-01-01

    Full Text Available Recently region-of-interest (ROI based image coding is a popular topic. Since ROI area contains much more important information for an image, it must be prevented from error decoding while suffering from channel lost or unexpected attack. This paper presents an efficient error concealment method to recover ROI information with a hiding technique. Based on the progressive transformation, the low-frequency components of ROI are encoded to disperse its information into the high-frequency bank of original image. The capability of protection is carried out with extracting the ROI coefficients from the damaged image without increasing extra information. Simulation results show that the proposed method can efficiently reconstruct the ROI image when ROI bit-stream occurs errors, and the measurement of PSNR result outperforms the conventional error concealment techniques by 2 to 5 dB.

  15. Optimization of Region-of-Interest Sampling Strategies for Hepatic MRI Proton Density Fat Fraction Quantification

    Science.gov (United States)

    Hong, Cheng William; Wolfson, Tanya; Sy, Ethan Z.; Schlein, Alexandra N.; Hooker, Jonathan C.; Dehkordy, Soudabeh Fazeli; Hamilton, Gavin; Reeder, Scott B.; Loomba, Rohit; Sirlin, Claude B.

    2017-01-01

    BACKGROUND Clinical trials utilizing proton density fat fraction (PDFF) as an imaging biomarker for hepatic steatosis have used a laborious region-of-interest (ROI) sampling strategy of placing an ROI in each hepatic segment. PURPOSE To identify a strategy with the fewest ROIs that consistently achieves close agreement with the nine-ROI strategy. STUDY TYPE Retrospective secondary analysis of prospectively acquired clinical research data. POPULATION A total of 391 adults (173 men, 218 women) with known or suspected NAFLD. FIELD STRENGTH/SEQUENCE Confounder-corrected chemical-shift-encoded 3T MRI using a 2D multiecho gradientrecalled echo technique. ASSESSMENT An ROI was placed in each hepatic segment. Mean nine-ROI PDFF and segmental PDFF standard deviation were computed. Segmental and lobar PDFF were compared. PDFF was estimated using every combinatorial subset of ROIs and compared to the nine-ROI average. STATISTICAL TESTING Mean nine-ROI PDFF and segmental PDFF standard deviation were summarized descriptively. Segmental PDFF was compared using a one-way analysis of variance, and lobar PDFF was compared using a paired t-test and a Bland–Altman analysis. The PDFF estimated by every subset of ROIs was informally compared to the nine-ROI average using median intraclass correlation coefficients (ICCs) and Bland–Altman analyses. RESULTS The study population’s mean whole-liver PDFF was 10.1±8.9% (range: 1.1–44.1%). Although there was no significant difference in average segmental (P=0.452) or lobar (P=0.154) PDFF, left and right lobe PDFF differed by at least 1.5 percentage points in 25.1% (98/391) of patients. Any strategy with ≥ 4 ROIs had ICC >0.995. 115 of 126 four-ROI strategies (91%) had limits of agreement (LOA) 0.995, and 2/36 (6%) of two-ROI strategies and 46/84 (55%) of three-ROI strategies had LOA <1.5%. DATA CONCLUSION Four-ROI sampling strategies with two ROIs in the left and right lobes achieve close agreement with nine-ROI PDFF. Level of

  16. Diffusion weighted imaging for differentiating benign from malignant orbital tumors: Diagnostic performance of the apparent diffusion coefficient based on region of interest selection method

    Energy Technology Data Exchange (ETDEWEB)

    Xu, Xiao Quan; Hu, Hao Hu; Su, Guo Yi; Liu, Hu; Shi, Hai Bin; Wu, Fei Yun [First Affiliated Hospital of Nanjing Medical University, Nanjing (China)

    2016-09-15

    To evaluate the differences in the apparent diffusion coefficient (ADC) measurements based on three different region of interest (ROI) selection methods, and compare their diagnostic performance in differentiating benign from malignant orbital tumors. Diffusion-weighted imaging data of sixty-four patients with orbital tumors (33 benign and 31 malignant) were retrospectively analyzed. Two readers independently measured the ADC values using three different ROIs selection methods including whole-tumor (WT), single-slice (SS), and reader-defined small sample (RDSS). The differences of ADC values (ADC-ROI{sub WT}, ADC-ROI{sub SS}, and ADC-ROI{sub RDSS}) between benign and malignant group were compared using unpaired t test. Receiver operating characteristic curve was used to determine and compare their diagnostic ability. The ADC measurement time was compared using ANOVA analysis and the measurement reproducibility was assessed using Bland-Altman method and intra-class correlation coefficient (ICC). Malignant group showed significantly lower ADC-ROI{sub WT}, ADC-ROI{sub SS}, and ADC-ROI{sub RDSS} than benign group (all p < 0.05). The areas under the curve showed no significant difference when using ADC-ROI{sub WT}, ADC-ROI{sub SS}, and ADC-ROI{sub RDSS} as differentiating index, respectively (all p > 0.05). The ROI{sub SS} and ROI{sub RDSS} required comparable measurement time (p > 0.05), while significantly shorter than ROI{sub WT} (p < 0.05). The ROI{sub SS} showed the best reproducibility (mean difference ± limits of agreement between two readers were 0.022 [-0.080–0.123] × 10{sup -3} mm{sup 2}/s; ICC, 0.997) among three ROI method. Apparent diffusion coefficient values based on the three different ROI selection methods can help to differentiate benign from malignant orbital tumors. The results of measurement time, reproducibility and diagnostic ability suggest that the ROI{sub SS} method are potentially useful for clinical practice.

  17. Optimization of region-of-interest sampling strategies for hepatic MRI proton density fat fraction quantification.

    Science.gov (United States)

    Hong, Cheng William; Wolfson, Tanya; Sy, Ethan Z; Schlein, Alexandra N; Hooker, Jonathan C; Fazeli Dehkordy, Soudabeh; Hamilton, Gavin; Reeder, Scott B; Loomba, Rohit; Sirlin, Claude B

    2018-04-01

    Clinical trials utilizing proton density fat fraction (PDFF) as an imaging biomarker for hepatic steatosis have used a laborious region-of-interest (ROI) sampling strategy of placing an ROI in each hepatic segment. To identify a strategy with the fewest ROIs that consistently achieves close agreement with the nine-ROI strategy. Retrospective secondary analysis of prospectively acquired clinical research data. A total of 391 adults (173 men, 218 women) with known or suspected NAFLD. Confounder-corrected chemical-shift-encoded 3T MRI using a 2D multiecho gradient-recalled echo technique. An ROI was placed in each hepatic segment. Mean nine-ROI PDFF and segmental PDFF standard deviation were computed. Segmental and lobar PDFF were compared. PDFF was estimated using every combinatorial subset of ROIs and compared to the nine-ROI average. Mean nine-ROI PDFF and segmental PDFF standard deviation were summarized descriptively. Segmental PDFF was compared using a one-way analysis of variance, and lobar PDFF was compared using a paired t-test and a Bland-Altman analysis. The PDFF estimated by every subset of ROIs was informally compared to the nine-ROI average using median intraclass correlation coefficients (ICCs) and Bland-Altman analyses. The study population's mean whole-liver PDFF was 10.1 ± 8.9% (range: 1.1-44.1%). Although there was no significant difference in average segmental (P = 0.452) or lobar (P = 0.154) PDFF, left and right lobe PDFF differed by at least 1.5 percentage points in 25.1% (98/391) of patients. Any strategy with ≥4 ROIs had ICC >0.995. 115 of 126 four-ROI strategies (91%) had limits of agreement (LOA) 0.995, and 2/36 (6%) of two-ROI strategies and 46/84 (55%) of three-ROI strategies had LOA <1.5%. Four-ROI sampling strategies with two ROIs in the left and right lobes achieve close agreement with nine-ROI PDFF. 3 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2018;47:988-994. © 2017 International Society for Magnetic Resonance

  18. Bhattacherjee, Prof. Satyendra Kumar

    Indian Academy of Sciences (India)

    Bhattacherjee, Prof. Satyendra Kumar Ph.D. (Notre Dame). Date of birth: 2 October 1926. Date of death: 28 April 2013. Specialization: Experimental Nuclear Physics Last known address: 302B, Tribute, Rajkamal Studio Compound, Off Dr SS Rao Road, Behind Mahatma Gandhi Memorial Hospital, Parel, Mumbai 400 012.

  19. The West African sports official : an insider's view of sports administration

    NARCIS (Netherlands)

    Beek, van W.E.A.

    2013-01-01

    Using my own experience as a sports administrator, I describe and analyse the organisational culture of West African sports. As a cultural anthropologist and draughts player, I have been President of the F‚d‚ration Mondiale du Jeu de Dames for eleven years, followed by four years as Executive

  20. 150 filmi Odessast Kiievini / Rao Heidmets ; interv. Jaan Ruus

    Index Scriptorium Estoniae

    Heidmets, Rao, 1956-

    2007-01-01

    Ukrainas 14. Rahvusvahelise Animafilmide festivali KROK žüriis osalenu ülevaade üritusest, nähtud filmidest, žürii tööst. Eriauhinna sai Riho Undi nukufilm "Vennad Karusüdamed". Peaauhinna sai inglase Luis Cook'i "Õed Pearce'id" ("The Pearce Sisters")

  1. Oil spill recovery technology

    International Nuclear Information System (INIS)

    Nash, J.; Cooper, W.; Nee, V.; Nigim, H.

    1992-01-01

    Current deficiencies in oil spill cleanup processes have resulted in research and development of new cleanup technologies at the University of Notre Dame. Emphasis on reducing, reusing and recycling equipment and waste at a cleanup site has prompted advances in oil recovery technology as well as improvement in sorbent materials. (author)

  2. The Great Sexologists: John Money on Sin, Science, and the Sex Police.

    Science.gov (United States)

    Money, John

    This paper discusses the role of sex police in society from the 14th century to the present and their affect on sex education in the schools. Jean Gerson, Chancellor of the University of Paris and Dean of the Cathedral School of Notre Dame, was one of the first to publish information concerning nocturnal wet dreams and boyhood masturbation. His…

  3. Giordano Bruno tuleriit / Paul-Eerik Rummo

    Index Scriptorium Estoniae

    Rummo, Paul-Eerik, 1942-

    2003-01-01

    Sisu: Giordano Bruno tuleriit ; Laul kohmakast kromanjoonlasest ; Eit, jõnglane ja rändaja. Augustiõhtu ; Mäng ; Ballaad mürsukillust südames ; Laul ühest uljast Napoleoni allohvitserist ... ; Hamleti laulud 1 ; Ükskord ennepuiste ; Kinni hoidmas ; Hea et soolagi

  4. Untitled

    Indian Academy of Sciences (India)

    In the solid phase, where R becomes very high, the Navier-Stokes equations will be dominated by the sources and the velocity forced to a very small value. Warious permeability functions available in the literature are listed and compared by Daming. Xu and Qingchun Li (1990). 1,1c Heat transfer at mould/metal interface: ...

  5. Valid soola, saad peki

    Index Scriptorium Estoniae

    2006-01-01

    Dr Heikki Karppanen Helsingi Ülikoolist ja dr Eero Mervaala Kuopio Ülikoolist väidavad meditsiiniajakirjas Progress in Cardiovascular Diseases, et soolakasutuse 30-35-protsendine langus viimase 30 aasta jooksul on tihedalt seotud südame-veresoonkonna haigustesse suremuse vähenemisega üle 65aastaste seas

  6. Degree-level education is an essential part of modern health care.

    Science.gov (United States)

    Finch, Dame Janet

    2016-08-17

    Dame Jill Macleod Clark is leading the work of the Nursing and Midwifery Council on education standards for the registered nurse degree, compiling views from nurses, students, educators and patients across the UK about the key competencies registered nurses need, both now and in the future.

  7. Neljakümnes kevad : [luuletused] / Niina Obrezkova ; tlk. Arvo Valton

    Index Scriptorium Estoniae

    Obrezkova, Niina, 1965-

    2006-01-01

    Sisu: Neljakümnes kevad ; "Oleme kõik lapsed..." ; "Hommikvestlust pidada on hilja..." ; "Kingi mulle lilli sa..." ; "On mehi..." ; "Mälu mulle uksed avas ise..." ; "Kolm on valu südames..." ; "Helge pisar..." ; "Ei salahoovusi mus leidu..." "Miskitviisi...". Luuletused paralleelselt komi ja eesti keeles

  8. Continuum description of thermodynamic processes in porous media: Fundament als and Applications

    NARCIS (Netherlands)

    Hassanizadeh SM

    1987-01-01

    Dit is de tekst van een aantal lezingen die door de auteur zijn gegeven bij de afdeling civiele techniek van de Universiteit van Notre Dame te Indiana, U.S.A. Uitgangspunten en principes die ten grondslag liggen aan de beschrijving van de continue poreuze media worden gepresenteerd en

  9. Alpha Group: The Behemoth Apteryx. Final design proposal

    Science.gov (United States)

    1991-01-01

    The participation of the University of Notre Dame's Alpha Design Group in the NASA/Universities Space Research Association (USRA) University Advanced Design Program for the 1990 to 1991 academic year is presented. Alpha Design Group presented a design for an aircraft called The Behemoth Apteryx.

  10. Double Coffee opens in China

    Index Scriptorium Estoniae

    2009-01-01

    Läti suursaadik Ingrida Levrence avas esimese Double Coffee kohviku Hiina pealinnas Pekingi südames. Rahvusvaheline kohvikukett kavatseb laieneda mõne kohviku võrra igal aastal. Seni tegutsetakse Lätis, Eestis, Leedus, Ukrainas ja Valgevenes

  11. "Women in Science" with Professor Jocelyn Bell Burnell

    Indian Academy of Sciences (India)

    Prof. Dame Jocelyn Bell Burnell is currently a visiting Professor at the. University of Oxford UK and a Fellow of Mansfield College. In a career spanning over four decades, she has made outstanding contributions to Astronomy and the public understanding of Science. As a Ph.D student in Cambridge. University she was ...

  12. Low-energy nuclear reactions with double-solenoid

    Indian Academy of Sciences (India)

    The University of Notre Dame, USA (Becchetti et al, Nucl. Instrum. Methods Res. A505, 377 (2003)) and later the University of São Paulo, Brazil (Lichtenthaler et al, Eur. Phys. J. A25, S-01, 733 (2005)) adopted a system based on superconducting solenoids to produce low-energy radioactive nuclear beams. In these systems ...

  13. Kontsertide sari "Saue kontsertsügis" / Kristiina Liivik

    Index Scriptorium Estoniae

    Liivik, Kristiina

    2006-01-01

    Kontsertidel Sauel esinemas: vene laulja Aleksander Dedik kontserdiga "Minu südame laul" 7. sept., saksa tšellist Holger-Faust Peters 15. sept., järgnevatel kuudel Aleksandra Juozapenaite-Eesmaa, laulja Toomas Kuter ja ansambel Hinkus

  14. Rahvusvaheline üldmeditsiini kongress oli Eestis esmakordselt / Marika Kusnets

    Index Scriptorium Estoniae

    Kusnets, Marika

    2007-01-01

    8. detsembril peeti Tallinnas rahvusvahelist üldmeditsiini kongressi, kus osalesid mitmete erialade arstid. Kongressil käsitletud teemad - südame-veresoonkonnahaiguste varajane diagnostika, söömisharjumused, metabolism, hüpertoonia, erektsioonihäired, depressioon, 2. tüüpi diabeet ja oftalmoloogia

  15. Focus on Physics: The Delightful Catenary Curve

    Science.gov (United States)

    Hewitt, Paul G.

    2017-01-01

    When teaching how "tension" and "compression" relate to geometrical structures such as bridges, arches, and domes, The author shows a picture of the Notre Dame Cathedral in Paris, completed in the 14th century, and presents a lesson on using the curve called a catenary to explain how he teaches about tension and compression…

  16. Fuel Cell Power Systems for Navy Applications

    Science.gov (United States)

    1984-05-01

    DAMES & MOORE LIBRARY LOS ANGELES. CA DRURY COLLEGE Physics Dept. Springfield. MO FLORIDA ATLANTIC UNIVERSITY Boca Raton. FL (McAllister) FOREST... Colin Ramage) Dept of Meteorology Honolulu HI: HONOLULU. HI (SCIENCE AND TECH. DIV.); Natd Energy Inst (DR Neill) Honolulu HI UNIVERSITY OF ILLINOIS (Hall

  17. Treasure Chase: Mega Gifts Are Down--But Are They out?

    Science.gov (United States)

    Mayer, Caroline E.

    2010-01-01

    Just a few years ago, the University of Notre Dame averaged about six mega gifts--$10 million or more--a year. Last year, however, the Fighting Irish received only one such donation. "That multimillion donation has become more difficult to obtain," says Lou Nanni, vice president for university relations at the Indiana institution.…

  18. Zhertvõ "Strastei" / Anna Fedina

    Index Scriptorium Estoniae

    Fedina, Anna

    2004-01-01

    Mel Gibsoni mängufilmi "Kristuse kannatused" ("The Passion of Christ") seanssidel on saanud infarkti juba kaks vaatajat ning mõrva üles tunnistanud üks kurjategija. Kiirabi oli valves ka Iirimaa esilinastuse ajal. Südame atakke on juhtunud ka Lars von Trieri filmide näitamise ajal

  19. Mitmekordsed rollimängud / Aita Kivi

    Index Scriptorium Estoniae

    Kivi, Aita, 1954-

    2000-01-01

    Sisu : Toomas Vint. Nädalavahetusel. Mängides; William Somerset Maugham. Jõulupuhkus; Meredith Rich. Parfüümi essents; Tordis ₍rjasaeter. Inimeste südamed : Sigrid Undset; C. David Heymann. Naine nimega Jackie; Heljo Jaik-Corradi. Mõtteid ei saa pidada; Jane Heller. Mõrvakatse merel

  20. Luuleõhtu "Sitikas suudleb kuud"

    Index Scriptorium Estoniae

    2009-01-01

    29. okt. toimub Adamson-Ericu muuseumis luuleõhtu, kus esinevad Andres Ehin luule ja häälutustega, Mart Soo kitarril ja Brian Melvin löökriistadel. Üritus toimub Kōkyō Hatanaka (sünd. 1947) näituse "Aasia minu südames. Jaapani klassikaline maal nihonga" raames

  1. An Old Dog and New Tricks

    Science.gov (United States)

    Hinshaw, Craig

    2011-01-01

    Glass as an art form is anything but new. Three thousand years ago the Egyptians were molding glass beads and shaping elegant glass perfume bottles. In this article, the author describes how his students created sun catchers inspired by the beauty of Notre Dame's stained glass windows and the intrigue of Dale Chihuly's sculptures. (Contains 1…

  2. Re-Seeing "The Mighty": Critically Examining One Film's Representations of Disability in the English Classroom

    Science.gov (United States)

    Maples, Joellen; Arndt, Katrina; White, Julia M.

    2010-01-01

    Films portraying characters with disabilities are often shown in the English classroom. Films such as "Of Mice and Men," "Simon Birch," "To Kill a Mockingbird," "The Hunchback of Notre Dame," "The Glass Menagerie," "Moby Dick," "Gattaca," and "A Beautiful Mind" often show simplistic and stereotypical representations of characters and their…

  3. Charting a Course through CORAL: Texas A&M University Libraries' Experience Implementing an Open-Source Electronic Resources Management System

    Science.gov (United States)

    Hartnett, Eric; Beh, Eugenia; Resnick, Taryn; Ugaz, Ana; Tabacaru, Simona

    2013-01-01

    In 2010, after two previous unsuccessful attempts at electronic resources management system (ERMS) implementation, Texas A&M University (TAMU) Libraries set out once again to find an ERMS that would fit its needs. After surveying the field, TAMU Libraries selected the University of Notre Dame Hesburgh Libraries-developed, open-source ERMS,…

  4. Ateena Agoraa. Varemete vaimsus ja materiaalsus = Athenian agora. Spiritualy and materiality of ruins / Anne Lill

    Index Scriptorium Estoniae

    Lill, Anne

    2004-01-01

    Ateena Agoraa - linna südame - varemete arhitektuuri mõtestamine filoloogia kaudu. Kõrvutatakse antiikkirjandust ja -arheoloogiat, kuna mõlemast on säilinud vaid fragmendid - varemed, mis tegelikult esindavad ühiskonna mälu ja on ühiskonna eetilise õhkkonna mõõdupuuks ning täiendades teineteist, moodustavad terviku

  5. Wentworth Miller : "Minu edu saladus? Kunstniku hing ja bürokraadi pulss" / Wentworth Miller ; koost. Triin Tael

    Index Scriptorium Estoniae

    Miller, Wentworth

    2006-01-01

    Cannes'is hotellis Carlton toimunud pressikonverentsist, kus ajakirjanike küsimustele vastasid põnevusseriaali "Põgenemine" peaosatäitjad Wentworth Miller ja Dominic Purcell. Lisaks "Wentworth SL Õhtulehele : "Minu südame võitmiseks tuleb oodata" ja tutvustus "Wentworthi läbimurdefilm täna õhtul ETVs"

  6. Schmetterlinge von Madeira

    NARCIS (Netherlands)

    Martin, K.

    1941-01-01

    Wer auf einer ozeanischen Insel Schmetterlinge sammeln will, darf seine Erwartungen nicht zu hoch spannen; aber dennoch waren meine Frau und ich sehr enttäuscht, als uns auf einer Reise nach Madeira von einer dort angesessenen, gebildeten Dame gesagt wurde, sie habe auf der Insel niemals einen

  7. Data assimilation and model evaluation experiment datasets

    Science.gov (United States)

    Lai, Chung-Cheng A.; Qian, Wen; Glenn, Scott M.

    1994-01-01

    The Institute for Naval Oceanography, in cooperation with Naval Research Laboratories and universities, executed the Data Assimilation and Model Evaluation Experiment (DAMEE) for the Gulf Stream region during fiscal years 1991-1993. Enormous effort has gone into the preparation of several high-quality and consistent datasets for model initialization and verification. This paper describes the preparation process, the temporal and spatial scopes, the contents, the structure, etc., of these datasets. The goal of DAMEE and the need of data for the four phases of experiment are briefly stated. The preparation of DAMEE datasets consisted of a series of processes: (1) collection of observational data; (2) analysis and interpretation; (3) interpolation using the Optimum Thermal Interpolation System package; (4) quality control and re-analysis; and (5) data archiving and software documentation. The data products from these processes included a time series of 3D fields of temperature and salinity, 2D fields of surface dynamic height and mixed-layer depth, analysis of the Gulf Stream and rings system, and bathythermograph profiles. To date, these are the most detailed and high-quality data for mesoscale ocean modeling, data assimilation, and forecasting research. Feedback from ocean modeling groups who tested this data was incorporated into its refinement. Suggestions for DAMEE data usages include (1) ocean modeling and data assimilation studies, (2) diagnosis and theoretical studies, and (3) comparisons with locally detailed observations.

  8. Siim Nestor soovitab : Uued hip-hop teosed live'is / Siim Nestor

    Index Scriptorium Estoniae

    Nestor, Siim, 1974-

    2006-01-01

    Põhjamaade Hirmu esikplaadi "Maailma südame põhjast" esitlustest Tallinnas ja 9. juunil Tartus klubis Illusion. TommyBoy uue heliplaadi "Suur pilt" esitlustest Tallinnas ja 9. juunil Rakvere teatrikohviku laval, Stupid F heliplaadi "Nostalgilised helid"esitlusest 9. juunil Rakvere teatrikohviku laval

  9. Christo Beyers-Sy Tydgenote en Geskrifte

    African Journals Online (AJOL)

    9 Mrt. 1974 ... en dan kyk na die bydrae wat hy, as akadernikus, na- vorser ... In 1908 lewer Beyers 'n lesing getitel 'The origin of .... Brown. Sy was 'n Franse dame,. Mira Rivet, wat Beyers gedurende sy studies in Lon~~n ontmoet het.

  10. Hvordan foregår mesterlære i elitesport?

    DEFF Research Database (Denmark)

    Lund, Ole

    af afhandlingen består af et multi-case studie af tre elitesportskontekster i Danmark. De tre cases består af henholdsvis en dame dobbeltsculler, et mandligt trampolin-synkron-par og et kvindeligt håndboldhold. Disse konstellationer befinder sig alle på et højt internationalt niveau. Afhandlingens...

  11. 316-IJBCS-Article-Prof Emile Fiogbe

    African Journals Online (AJOL)

    Dr Gatsing

    Thèse de. Doctorat, Facultés Universitaires Notre-. Dame de la Paix, Namur, Belgique, 220p. Kestemont P, Micha J-C, Falter U. 1989. Les. Méthodes de Production d'Alevins de. Tilapia nilotica. ADCP / REP / 89 / 46,. PNUD-FAO, Rome, 132p. Lejeune A, Cagauan A, Van Hove C. 1999. Azolla Research and Development :.

  12. Morality and Foreign Policy. A Symposium on President Carter's Stance.

    Science.gov (United States)

    Lefever, Ernest W., Ed.

    This monograph contains a critical examination of President Carter's view on ethics and foreign policy as expressed in his commencement speech at Notre Dame University on May 22, 1977. The book is organized into three parts. Part 1 contains Mr. Carter's speech entitled, "Power for Humane Purposes." Part 2 contains nine responses to the…

  13. Een mvt-literatuurproject in de vernieuwde tweede fase : Deel 3, Commentez maintenant le titre

    NARCIS (Netherlands)

    Rentrop, J.

    2008-01-01

    In de eerste twee delen van de beschrijving van het literatuurproject in havo 5 heb ik uiteengezet hoe ik les 1 tot en met 5 heb vormgegeven. Hierin kwamen achtereenvolgens de lees brief, de opdracht bij Oscar et Ia dame rose van Eric-Emmanuel Schmitt, het promoten van recent uitgekomen Franse en

  14. Fulltext PDF

    Indian Academy of Sciences (India)

    That is how his close friend from school days and long time collaborator, Paul Turcn refers to ... down to his first real job with the Notre Dame University in 1942. ... So much so, his mother realised that to be with her son she would have to travel.

  15. 75 FR 57298 - Proposal Review Panel for Physics; Notice of Meeting

    Science.gov (United States)

    2010-09-20

    ... NATIONAL SCIENCE FOUNDATION Proposal Review Panel for Physics; Notice of Meeting In accordance... announces the following meeting. Name: University of Notre Dame Site Visit in Physics (1208). Date and Time..., Program Director for Physics Education and Disciplinary Research, National Science Foundation, 4201 Wilson...

  16. Spectroscopy of two-electron atoms

    International Nuclear Information System (INIS)

    Desesquelles, J.

    1988-01-01

    Spectroscopy of heliumlike ions is discussed putting emphasis on mid and high Z atoms. Experimental aspects of ion charge, excitation production, clean spectra, and precise wavelength measurement are detailed. Recent results obtained at several laboratories including Lyon, Argonne, Notre-Dame, Oxford, Berkeley, Darmstadt, Paris, are used to test the QED contributions and higher order relativistic corrections to two-electron atom energies. (orig.)

  17. Когда любой луг может стать сценой / Борис Тух

    Index Scriptorium Estoniae

    Тух, Борис, 1946-

    2009-01-01

    Neljast suvelavastusest : Andres Dvinjaninovi ja Emajõe Suveteatri "Raha" Viimsi Vabaõhumuuseumis, Katrin Saukase "Tuult tiibadesse!", MTÜ R.A.A.A.M. Hüüru mõisas, Rakvere Teatri Astrid Lingreni-Üllar Saaremäe "Vennad Lõvisüdamed" ja Jean Genet "Toatüdrukud", lavastaja Hendrik Toompere jun.

  18. Miks ühel õnnestub ja teisel mitte? / Amy Edmonson, Richard Bohmer, Gary Pisano ; tõlk. Kadre Vaik

    Index Scriptorium Estoniae

    Edmonson, Amy

    2003-01-01

    16 meditsiinikeskuses läbi viidud uuringust eesmärgiga jälgida kirurgimeeskondade tööd ning kohanemist uute töömeetoditega. Kommenteerivad Toomas-Andres Sulling, Tiit Ojaveski ja Ela Velström. Vt. samas: Uus meetod murtud südame parandamiseks; Kahe haigla lugu. Lisa: Õppiv liider

  19. Central effects of some peptide and non-peptide opioids and naloxone on thermoregulation in the rabbit

    Science.gov (United States)

    Kandasamy, S. B.; Williams, B. A.

    1983-01-01

    The effects of several peptide and non-peptide opiods and naloxone on induced hyperthermia is studied in rabbits. The effect of tyical mu, kappa, and sigma receptor antagonists (morphine, ketocyclazcine and SKF 10,0 10, 047) and some opioid peptides (Beta-endorphin /BE/, methionine-enkaphalin /ME/, and D-Ala2-methionine-enkaphalin-amide /DAME/ are determined. The role of prostaglandins (PG), cAMP, and norepinephrine (NE) in morphine, BE, and DAME induced hyperthermia is investigated. In addition, the effect of naloxone on pyrogen, arachidonic acid, PGE2, prostacyclin, dibutyryl cAMP, and NE induced hyperthermia is determined. Among other results, it is found that the three receptor antagonists induced hyperthermia in rabbits. BE, ME, and DAME were also found to cause hyperthermia, and it is suggested that they act on the same type of receptor. It is also determined that neither NE nor cAMP is involved in the hyperthermia due to morphine, BE, and DAME. It is suggested that an action of endogenous peptides on naloxone sensitive receptors plays little role in normal thermoregulation or in hyperthermia.

  20. Evaluation of chronic pulmonary emphysema ultrafast computed tomography

    International Nuclear Information System (INIS)

    Tsuchida, Fumihiro; Yagyu, Hisanaga; Ohishi, Shuji; Nakamura, Hiroyuki; Matsuoka, Takeshi

    2003-01-01

    We compared pulmonary ventilation dynamics between 41 patients with pulmonary emphysema and 11 healthy subjects with normal pulmonary function using ultrafast computed tomography (CT). Regions of interest (ROIs) for multislice scanning were selected from the anatomical levels of the carina in the right upper lung field. Several identical slices were selected from the inspiratory and expiratory scans. The average CT values in the ROIs (AvROI) were obtained during the inspiratory phase (inAvROI) and the expiratory phase (exAvROI. The ratio of change from inAvROI to exAvROI ((I-E)/E ratio) was also used for image analysis. Furthermore, possible correlations between the CT image parameters and pulmonary function test parameters were examined. The results showed that the exAvROI and inAvROI values and (I-E)/E ratio were lower in the emphysema group than in the normal pulmonary function group. Among the image data parameters, the exAvROI value correlated most closely with pulmonary function parameters, in particular, with the pulmonary diffusing capacity. These findings suggest that image data parameters of ventilation dynamics may be useful for evaluating the severity of pulmonary emphysema. (author)

  1. Automatic Delineation of On-Line Head-And-Neck Computed Tomography Images: Toward On-Line Adaptive Radiotherapy

    International Nuclear Information System (INIS)

    Zhang Tiezhi; Chi Yuwei; Meldolesi, Elisa; Yan Di

    2007-01-01

    Purpose: To develop and validate a fully automatic region-of-interest (ROI) delineation method for on-line adaptive radiotherapy. Methods and Materials: On-line adaptive radiotherapy requires a robust and automatic image segmentation method to delineate ROIs in on-line volumetric images. We have implemented an atlas-based image segmentation method to automatically delineate ROIs of head-and-neck helical computed tomography images. A total of 32 daily computed tomography images from 7 head-and-neck patients were delineated using this automatic image segmentation method. Manually drawn contours on the daily images were used as references in the evaluation of automatically delineated ROIs. Two methods were used in quantitative validation: (1) the dice similarity coefficient index, which indicates the overlapping ratio between the manually and automatically delineated ROIs; and (2) the distance transformation, which yields the distances between the manually and automatically delineated ROI surfaces. Results: Automatic segmentation showed agreement with manual contouring. For most ROIs, the dice similarity coefficient indexes were approximately 0.8. Similarly, the distance transformation evaluation results showed that the distances between the manually and automatically delineated ROI surfaces were mostly within 3 mm. The distances between two surfaces had a mean of 1 mm and standard deviation of <2 mm in most ROIs. Conclusion: With atlas-based image segmentation, it is feasible to automatically delineate ROIs on the head-and-neck helical computed tomography images in on-line adaptive treatments

  2. Reaction and catalyst engineering to exploit kinetically controlled whole-cell multistep biocatalysis for terminal FAME oxyfunctionalization.

    Science.gov (United States)

    Schrewe, Manfred; Julsing, Mattijs K; Lange, Kerstin; Czarnotta, Eik; Schmid, Andreas; Bühler, Bruno

    2014-09-01

    The oxyfunctionalization of unactivated C−H bonds can selectively and efficiently be catalyzed by oxygenase-containing whole-cell biocatalysts. Recombinant Escherichia coli W3110 containing the alkane monooxygenase AlkBGT and the outer membrane protein AlkL from Pseudomonas putida GPo1 have been shown to efficiently catalyze the terminal oxyfunctionalization of renewable fatty acid methyl esters yielding bifunctional products of interest for polymer synthesis. In this study, AlkBGTL-containing E. coli W3110 is shown to catalyze the multistep conversion of dodecanoic acid methyl ester (DAME) via terminal alcohol and aldehyde to the acid, exhibiting Michaelis-Menten-type kinetics for each reaction step. In two-liquid phase biotransformations, the product formation pattern was found to be controlled by DAME availability. Supplying DAME as bulk organic phase led to accumulation of the terminal alcohol as the predominant product. Limiting DAME availability via application of bis(2-ethylhexyl)phthalate (BEHP) as organic carrier solvent enabled almost exclusive acid accumulation. Furthermore, utilization of BEHP enhanced catalyst stability by reducing toxic effects of substrate and products. A further shift towards the overoxidized products was achieved by co-expression of the gene encoding the alcohol dehydrogenase AlkJ, which was shown to catalyze efficient and irreversible alcohol to aldehyde oxidation in vivo. With DAME as organic phase, the aldehyde accumulated as main product using resting cells containing AlkBGT, AlkL, as well as AlkJ. This study highlights the versatility of whole-cell biocatalysis for synthesis of industrially relevant bifunctional building blocks and demonstrates how integrated reaction and catalyst engineering can be implemented to control product formation patterns in biocatalytic multistep reactions. © 2014 Wiley Periodicals, Inc.

  3. Computer Aided Detection of Breast Masses in Digital Tomosynthesis

    Science.gov (United States)

    2008-06-01

    of unknown pathology , all other ROIs generated from that specific subject’s reconstructed volumes were excluded from the KB. For scheme B, all the FPs...query ROI of unknown pathology , all other ROIs generated from that specific subject’s reconstructed volumes were excluded from the KB. For scheme B...Qian, L. Li, and L.P. Clarke, "Image feature extraction for mass detection in digital mammography: Influence of wavelet analysis." Med. Phys. 26

  4. Teckensnitt och dess personlighetsdrag

    OpenAIRE

    Linnarsson, Johan; Borja, Mårten

    2014-01-01

    När du arbetar med teckensnitt, vare sig du skapar – eller helt enkelt väljer ett teckensnitt, finns det konsekvenser till följd av skapandet och/eller valet. Läslighet och läsbarhet ligger i hjärtat av teckensnitts utformning – men principerna kring läslighet och läsbarhet är flexibla och kan komma att bortses ifrån, beroende på den tänkta kontexten för teckensnittet. Ett grepp om historiken bakom användningen av vissa teckensnitt, såväl som kunskap om de möjliga associationer de kan väcka ä...

  5. Taxonomi för databashanterare

    OpenAIRE

    Österberg, Alexander

    2017-01-01

    Syftet med denna undersökning är att ta fram en taxonomi för databashanteringssystem (DBMS) som kan förenkla valet av DBMS, då det kan vara en lång och komplicerad process. Taxonomin klassificerar kriterier hos DBMS som anses viktiga i en litteraturstudie av flertalet artiklar. Arbetet visar även på en strukturerad process för att gå från krav till val av databashanterare i form av ett poängsystem som använder sig av taxonomin och DBMS rangordning på olika kriterier. Valprocessen tar ställnin...

  6. P/B i kombination med marknadsvärde : En studie på Stockholmsbörsen 2006 - 2016

    OpenAIRE

    Lundgren, Anton; Ahlgren, Sara

    2017-01-01

    Bakgrund: Denna studie är ett test av investeringsstrategi baserad på relativvärdering av multiplar. Den multipel som kommer att studeras som investeringsstrategi är Price-to-Book (P/B). Valet av multipel på P/B beror på att det är en väl omskriven multipel som fortfarande väcker frågeställningar avseende betydelsen av bokfört värde i kombination med marknadsvärde. Syfte: Syftet med denna studie är att undersöka och analysera multipeln P/B som investeringsstrategi för aktier. Vidare syftar st...

  7. Leksaker baserade på teknik sedda ur ett genusperspektiv : En studie om 6-åringars preferenser och användande av könsstereotypa konstruktionsleksaker

    OpenAIRE

    Bernström, Annelie

    2007-01-01

    Genom kvalitativa intervjuer med barn i förskoleklass och genom enkätundersökningar hos pedagoger har jag fått svar på mina frågeställningar som handlar om pojkar, flickor och deras leksaksval då det gäller teknikbaserade leksaker. Syftet var att försöka se om det fanns skillnader i valet och användandet av dessa leksaker och i så fall försöka tydliggöra dem, och dessutom ta reda på varför barnen är olika i sina leksakspreferenser. Resultatet påvisar att för barnen i denna förskoleklass är ko...

  8. Word of mouth muntligt och via sociala medier : - På vilket sätt påverkar det turisters reseplanering?

    OpenAIRE

    Hugosson, Jennie; Ahlberg, Madeleine

    2017-01-01

    Vår studie belyser hur informationsspridning både muntligt och via internet kan påverka turisters reseplaneringsprocess. Studien undersöker vilka känslomässiga attityder individer upplever genom word of mouth och electronic word of mouth och hur vida dessa attityder påverkar valet av ett nytt resmål. Syftet med studien är att undersöka hur word of mouth kan påverka turisters val av nya resmål. För att möjliggöra detta har vi genomfört intervjuer med respondenter utifrån förutbestämda kriterie...

  9. Comparing brain graphs in which nodes are regions of interest or independent components: A simulation study.

    Science.gov (United States)

    Yu, Qingbao; Du, Yuhui; Chen, Jiayu; He, Hao; Sui, Jing; Pearlson, Godfrey; Calhoun, Vince D

    2017-11-01

    A key challenge in building a brain graph using fMRI data is how to define the nodes. Spatial brain components estimated by independent components analysis (ICA) and regions of interest (ROIs) determined by brain atlas are two popular methods to define nodes in brain graphs. It is difficult to evaluate which method is better in real fMRI data. Here we perform a simulation study and evaluate the accuracies of a few graph metrics in graphs with nodes of ICA components, ROIs, or modified ROIs in four simulation scenarios. Graph measures with ICA nodes are more accurate than graphs with ROI nodes in all cases. Graph measures with modified ROI nodes are modulated by artifacts. The correlations of graph metrics across subjects between graphs with ICA nodes and ground truth are higher than the correlations between graphs with ROI nodes and ground truth in scenarios with large overlapped spatial sources. Moreover, moving the location of ROIs would largely decrease the correlations in all scenarios. Evaluating graphs with different nodes is promising in simulated data rather than real data because different scenarios can be simulated and measures of different graphs can be compared with a known ground truth. Since ROIs defined using brain atlas may not correspond well to real functional boundaries, overall findings of this work suggest that it is more appropriate to define nodes using data-driven ICA than ROI approaches in real fMRI data. Copyright © 2017 Elsevier B.V. All rights reserved.

  10. Observer variability of absolute and relative thrombus density measurements in patients with acute ischemic stroke

    International Nuclear Information System (INIS)

    Santos, Emilie M.M.; Yoo, Albert J.; Beenen, Ludo F.; Majoie, Charles B.; Berkhemer, Olvert A.; Blanken, Mark D. den; Wismans, Carrie; Niessen, Wiro J.; Marquering, Henk A.

    2016-01-01

    Thrombus density may be a predictor for acute ischemic stroke treatment success. However, only limited data on observer variability for thrombus density measurements exist. This study assesses the variability and bias of four common thrombus density measurement methods by expert and non-expert observers. For 132 consecutive patients with acute ischemic stroke, three experts and two trained observers determined thrombus density by placing three standardized regions of interest (ROIs) in the thrombus and corresponding contralateral arterial segment. Subsequently, absolute and relative thrombus densities were determined using either one or three ROIs. Intraclass correlation coefficient (ICC) was determined, and Bland-Altman analysis was performed to evaluate interobserver and intermethod agreement. Accuracy of the trained observer was evaluated with a reference expert observer using the same statistical analysis. The highest interobserver agreement was obtained for absolute thrombus measurements using three ROIs (ICCs ranging from 0.54 to 0.91). In general, interobserver agreement was lower for relative measurements, and for using one instead of three ROIs. Interobserver agreement of trained non-experts and experts was similar. Accuracy of the trained observer measurements was comparable to the expert interobserver agreement and was better for absolute measurements and with three ROIs. The agreement between the one ROI and three ROI methods was good. Absolute thrombus density measurement has superior interobserver agreement compared to relative density measurement. Interobserver variation is smaller when multiple ROIs are used. Trained non-expert observers can accurately and reproducibly assess absolute thrombus densities using three ROIs. (orig.)

  11. Primary and metastatic ovarian cancer: Characterization by 3.0T diffusion-weighted MRI

    Energy Technology Data Exchange (ETDEWEB)

    Lindgren, Auni [Kuopio University Hospital, Department of Gynaecology and Obstetrics, Kuopio (Finland); Anttila, Maarit [Kuopio University Hospital, Department of Gynaecology and Obstetrics, Kuopio (Finland); University of Eastern Finland, Institute of Clinical Medicine, School of Medicine, Gynaecology, Kuopio (Finland); Rautiainen, Suvi; Arponen, Otso; Haermae, Kirsi [Kuopio University Hospital, Department of Clinical Radiology, Kuopio (Finland); Kivelae, Annukka; Maekinen, Petri; Ylae-Herttuala, Seppo [University of Eastern Finland, Department of Biotechnology and Molecular Medicine, A.I. Virtanen Institute for Molecular Sciences, Kuopio (Finland); Haemaelaeinen, Kirsi [Kuopio University Hospital, Department of Pathology and Forensic Medicine, Kuopio (Finland); University of Eastern Finland, Institute of Clinical Medicine, School of Medicine, Pathology and Forensic Medicine, Kuopio (Finland); Kosma, Veli-Matti [Kuopio University Hospital, Department of Pathology and Forensic Medicine, Kuopio (Finland); University of Eastern Finland, Institute of Clinical Medicine, School of Medicine, Pathology and Forensic Medicine, Kuopio (Finland); University of Eastern Finland, Cancer Center of Eastern Finland, Kuopio (Finland); Vanninen, Ritva [Kuopio University Hospital, Department of Clinical Radiology, Kuopio (Finland); University of Eastern Finland, Cancer Center of Eastern Finland, Kuopio (Finland); University of Eastern Finland, Institute of Clinical Medicine, School of Medicine, Clinical Radiology, Kuopio (Finland); Sallinen, Hanna [Kuopio University Hospital, Department of Gynaecology and Obstetrics, Kuopio (Finland); University of Eastern Finland, Institute of Clinical Medicine, School of Medicine, Gynaecology, Kuopio (Finland); University of Eastern Finland, Department of Biotechnology and Molecular Medicine, A.I. Virtanen Institute for Molecular Sciences, Kuopio (Finland)

    2017-09-15

    We aimed to investigate whether apparent diffusion coefficients (ADCs) measured by 3.0T diffusion-weighted magnetic resonance imaging (DWI) associate with histological aggressiveness of ovarian cancer (OC) or predict the clinical outcome. This prospective study enrolled 40 patients with primary OC, treated 2011-2014. DWI was performed prior to surgery. Two observers used whole lesion single plane region of interest (WLsp-ROI) and five small ROIs (S-ROI) to analyze ADCs. Samples from tumours and metastases were collected during surgery. Immunohistochemistry and quantitative reverse transcription polymerase chain reaction (qRT-PCR) were used to measure the expression of vascular endothelial growth factor (VEGF) and its receptors. The interobserver reliability of ADC measurements was excellent for primary tumours ICC 0.912 (WLsp-ROI). Low ADCs significantly associated with poorly differentiated OC (WLsp-ROI P = 0.035). In primary tumours, lower ADCs significantly associated with high Ki-67 (P = 0.001) and low VEGF (P = 0.001) expression. In metastases, lower ADCs (WLsp-ROI) significantly correlated with low VEGF receptors mRNA levels. ADCs had predictive value; 3-year overall survival was poorer in patients with lower ADCs (WLsp-ROI P = 0.023, S-ROI P = 0.038). Reduced ADCs are associated with histological severity and worse outcome in OC. ADCs measured with WLsp-ROI may serve as a prognostic biomarker of OC. (orig.)

  12. First clinical experience with a multiple region of interest registration and correction method in radiotherapy of head-and-neck cancer patients

    International Nuclear Information System (INIS)

    Beek, Suzanne van; Kranen, Simon van; Mencarelli, Angelo; Remeijer, Peter; Rasch, Coen; Herk, Marcel van; Sonke, Jan-Jakob

    2010-01-01

    Purpose: To discuss the first clinical experience with a multiple region of interest (mROI) registration and correction method for high-precision radiotherapy of head-and-neck cancer patients. Materials and methods: 12-13 3D rectangular-shaped ROIs were automatically placed around bony structures on the planning CT scans (n = 50 patients) which were individually registered to subsequent CBCT scans. mROI registration was used to quantify global and local setup errors. The time required to perform the mROI registration was compared with that of a previously used single-ROI method. The number of scans with residual local setup error exceeding 5 mm/5 deg. (warnings) was scored together with the frequency ROIs exceeding these limits for three or more consecutive imaging fractions (systematic errors). Results: In 40% of the CBCT scans, one or more ROI-registrations exceeded the 5 mm/5 deg.. Most warnings were seen in ROI 'hyoid', 31% of the rotation warnings and 14% of the translation warnings. Systematic errors lead to 52 consults of the treating physician. The preparation and registration time was similar for both registration methods. Conclusions: The mROI registration method is easy to use with little extra workload, provides additional information on local setup errors, and helps to select patients for re-planning.

  13. Observer variability of absolute and relative thrombus density measurements in patients with acute ischemic stroke

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Emilie M.M. [Erasmus MC - University Medical Center Rotterdam, Department of Radiology, P.O. Box 2040, Rotterdam (Netherlands); Department of Radiology, AMC, Amsterdam (Netherlands); Yoo, Albert J. [Texas Stroke Institute, Plano, TX (United States); Beenen, Ludo F.; Majoie, Charles B. [Department of Radiology, AMC, Amsterdam (Netherlands); Berkhemer, Olvert A. [Department of Radiology, AMC, Amsterdam (Netherlands); Department of Neurology, Erasmus MC, Rotterdam (Netherlands); Blanken, Mark D. den; Wismans, Carrie [AMC, Department of Biomedical Engineering and Physics, Amsterdam (Netherlands); Niessen, Wiro J. [Erasmus MC - University Medical Center Rotterdam, Department of Radiology, P.O. Box 2040, Rotterdam (Netherlands); Delft University of Technology, Faculty of Applied Sciences, Delft (Netherlands); Marquering, Henk A. [Department of Radiology, AMC, Amsterdam (Netherlands); AMC, Department of Biomedical Engineering and Physics, Amsterdam (Netherlands); Collaboration: on behalf of the MR CLEAN investigators

    2016-02-15

    Thrombus density may be a predictor for acute ischemic stroke treatment success. However, only limited data on observer variability for thrombus density measurements exist. This study assesses the variability and bias of four common thrombus density measurement methods by expert and non-expert observers. For 132 consecutive patients with acute ischemic stroke, three experts and two trained observers determined thrombus density by placing three standardized regions of interest (ROIs) in the thrombus and corresponding contralateral arterial segment. Subsequently, absolute and relative thrombus densities were determined using either one or three ROIs. Intraclass correlation coefficient (ICC) was determined, and Bland-Altman analysis was performed to evaluate interobserver and intermethod agreement. Accuracy of the trained observer was evaluated with a reference expert observer using the same statistical analysis. The highest interobserver agreement was obtained for absolute thrombus measurements using three ROIs (ICCs ranging from 0.54 to 0.91). In general, interobserver agreement was lower for relative measurements, and for using one instead of three ROIs. Interobserver agreement of trained non-experts and experts was similar. Accuracy of the trained observer measurements was comparable to the expert interobserver agreement and was better for absolute measurements and with three ROIs. The agreement between the one ROI and three ROI methods was good. Absolute thrombus density measurement has superior interobserver agreement compared to relative density measurement. Interobserver variation is smaller when multiple ROIs are used. Trained non-expert observers can accurately and reproducibly assess absolute thrombus densities using three ROIs. (orig.)

  14. Nele Suisalu otsib aktiivset vaatajat / Tiiu Laks

    Index Scriptorium Estoniae

    Laks, Tiiu, 1984-

    2008-01-01

    Lõuna-Prantsusmaal Montpellier's koreograaf Xavier le Roi juures õppiv Nele Suisalu lavastab koos elukaaslase Florent Hamoniga Tallinnas Kanuti Gildi saalis Augusti tantsufestivali raames tantsuetenduse "Ball"

  15. Primary and metastatic ovarian cancer: Characterization by 3.0T diffusion-weighted MRI

    International Nuclear Information System (INIS)

    Lindgren, Auni; Anttila, Maarit; Rautiainen, Suvi; Arponen, Otso; Haermae, Kirsi; Kivelae, Annukka; Maekinen, Petri; Ylae-Herttuala, Seppo; Haemaelaeinen, Kirsi; Kosma, Veli-Matti; Vanninen, Ritva; Sallinen, Hanna

    2017-01-01

    We aimed to investigate whether apparent diffusion coefficients (ADCs) measured by 3.0T diffusion-weighted magnetic resonance imaging (DWI) associate with histological aggressiveness of ovarian cancer (OC) or predict the clinical outcome. This prospective study enrolled 40 patients with primary OC, treated 2011-2014. DWI was performed prior to surgery. Two observers used whole lesion single plane region of interest (WLsp-ROI) and five small ROIs (S-ROI) to analyze ADCs. Samples from tumours and metastases were collected during surgery. Immunohistochemistry and quantitative reverse transcription polymerase chain reaction (qRT-PCR) were used to measure the expression of vascular endothelial growth factor (VEGF) and its receptors. The interobserver reliability of ADC measurements was excellent for primary tumours ICC 0.912 (WLsp-ROI). Low ADCs significantly associated with poorly differentiated OC (WLsp-ROI P = 0.035). In primary tumours, lower ADCs significantly associated with high Ki-67 (P = 0.001) and low VEGF (P = 0.001) expression. In metastases, lower ADCs (WLsp-ROI) significantly correlated with low VEGF receptors mRNA levels. ADCs had predictive value; 3-year overall survival was poorer in patients with lower ADCs (WLsp-ROI P = 0.023, S-ROI P = 0.038). Reduced ADCs are associated with histological severity and worse outcome in OC. ADCs measured with WLsp-ROI may serve as a prognostic biomarker of OC. (orig.)

  16. Combining region- and network-level brain-behavior relationships in a structural equation model.

    Science.gov (United States)

    Bolt, Taylor; Prince, Emily B; Nomi, Jason S; Messinger, Daniel; Llabre, Maria M; Uddin, Lucina Q

    2018-01-15

    Brain-behavior associations in fMRI studies are typically restricted to a single level of analysis: either a circumscribed brain region-of-interest (ROI) or a larger network of brain regions. However, this common practice may not always account for the interdependencies among ROIs of the same network or potentially unique information at the ROI-level, respectively. To account for both sources of information, we combined measurement and structural components of structural equation modeling (SEM) approaches to empirically derive networks from ROI activity, and to assess the association of both individual ROIs and their respective whole-brain activation networks with task performance using three large task-fMRI datasets and two separate brain parcellation schemes. The results for working memory and relational tasks revealed that well-known ROI-performance associations are either non-significant or reversed when accounting for the ROI's common association with its corresponding network, and that the network as a whole is instead robustly associated with task performance. The results for the arithmetic task revealed that in certain cases, an ROI can be robustly associated with task performance, even when accounting for its associated network. The SEM framework described in this study provides researchers additional flexibility in testing brain-behavior relationships, as well as a principled way to combine ROI- and network-levels of analysis. Copyright © 2017 Elsevier Inc. All rights reserved.

  17. A multi-institution evaluation of deformable image registration algorithms for automatic organ delineation in adaptive head and neck radiotherapy

    International Nuclear Information System (INIS)

    Hardcastle, Nicholas; Kumar, Prashant; Oechsner, Markus; Richter, Anne; Song, Shiyu; Myers, Michael; Polat, Bülent; Bzdusek, Karl; Tomé, Wolfgang A; Cannon, Donald M; Brouwer, Charlotte L; Wittendorp, Paul WH; Dogan, Nesrin; Guckenberger, Matthias; Allaire, Stéphane; Mallya, Yogish

    2012-01-01

    Adaptive Radiotherapy aims to identify anatomical deviations during a radiotherapy course and modify the treatment plan to maintain treatment objectives. This requires regions of interest (ROIs) to be defined using the most recent imaging data. This study investigates the clinical utility of using deformable image registration (DIR) to automatically propagate ROIs. Target (GTV) and organ-at-risk (OAR) ROIs were non-rigidly propagated from a planning CT scan to a per-treatment CT scan for 22 patients. Propagated ROIs were quantitatively compared with expert physician-drawn ROIs on the per-treatment scan using Dice scores and mean slicewise Hausdorff distances, and center of mass distances for GTVs. The propagated ROIs were qualitatively examined by experts and scored based on their clinical utility. Good agreement between the DIR-propagated ROIs and expert-drawn ROIs was observed based on the metrics used. 94% of all ROIs generated using DIR were scored as being clinically useful, requiring minimal or no edits. However, 27% (12/44) of the GTVs required major edits. DIR was successfully used on 22 patients to propagate target and OAR structures for ART with good anatomical agreement for OARs. It is recommended that propagated target structures be thoroughly reviewed by the treating physician

  18. Evidence for submarine landslides and continental slope erosion related to fault reactivation during the last glaciation offshore eastern Canada

    Science.gov (United States)

    Saint-Ange, F.; Campbell, C.; MacKillop, K.; Mosher, D. C.; Piper, D. J.; Roger, J.

    2012-12-01

    Many studies have proposed that reactivation of dormant faults during deglaciation is a source of neotectonic activity in glaciated regions, but few have demonstrated the relationship to submarine landslides. In this study, seabed morphology and shallow geology of the outer continental margin adjacent to the Charlie Gibbs Fracture Zone off Newfoundland, Canada was investigated for evidence of this relationship. The glacial history and morphology of the margin suggest that the entire continental shelf in the area, coincident with major continental crustal lineaments, was ice-covered during the Last glacial cycle, and transverse troughs delineate the paleo-icestream drainage patterns. A recent investigation of Notre Dame Trough revealed the existence of large sediment failures on the shelf. The current study investigates complex seafloor erosion and widespread mass transport deposition (MTD) on the continental slope seaward of Notre Dame Trough, using recently-acquired high resolution seismic reflection data and piston cores. The new data reveal that a trough mouth fan (TMF) is present on the slope seaward of Notre Dame Trough. The Notre Dame TMF is characterized by a succession of stacked debris flows, but does not show a lobate shape in plan view like other classic TMFs. Instead, the Notre Dame TMF has abruptly-truncated margins suggesting post-depositional failure and erosion of the fan deposits. Seismic reflection data show that the locations of the failures along the TMF margin are coincident with a set of shallow faults; however the current dataset does not image the deeper portion of the faults. On the upper slope immediately south of the TMF, a narrow and deeply incised canyon is located along-trend with the Notre Dame Trough. The location of this canyon appears to be controlled by a fault. Downslope from this canyon, along the southern margin of the TMF, a 25 km wide, flat-floored, U-shaped valley was eroded into a succession of stacked MTD-filled channels

  19. Gender differences in functional connectivities between insular subdivisions and selective pain-related brain structures.

    Science.gov (United States)

    Dai, Yu-Jie; Zhang, Xin; Yang, Yang; Nan, Hai-Yan; Yu, Ying; Sun, Qian; Yan, Lin-Feng; Hu, Bo; Zhang, Jin; Qiu, Zi-Yu; Gao, Yi; Cui, Guang-Bin; Chen, Bi-Liang; Wang, Wen

    2018-03-14

    The incidence of pain disorders in women is higher than in men, making gender differences in pain a research focus. The human insular cortex is an important brain hub structure for pain processing and is divided into several subdivisions, serving different functions in pain perception. Here we aimed to examine the gender differences of the functional connectivities (FCs) between the twelve insular subdivisions and selected pain-related brain structures in healthy adults. Twenty-six healthy males and 11 age-matched healthy females were recruited in this cross-sectional study. FCs between the 12 insular subdivisions (as 12 regions of interest (ROIs)) and the whole brain (ROI-whole brain level) or 64 selected pain-related brain regions (64 ROIs, ROI-ROI level) were measured between the males and females. Significant gender differences in the FCs of the insular subdivisions were revealed: (1) The FCs between the dorsal dysgranular insula (dId) and other brain regions were significantly increased in males using two different techniques (ROI-whole brain and ROI-ROI analyses); (2) Based on the ROI-whole brain analysis, the FC increases in 4 FC-pairs were observed in males, including the left dId - the right median cingulate and paracingulate/ right posterior cingulate gyrus/ right precuneus, the left dId - the right median cingulate and paracingulate, the left dId - the left angular as well as the left dId - the left middle frontal gyrus; (3) According to the ROI-ROI analysis, increased FC between the left dId and the right rostral anterior cingulate cortex was investigated in males. In summary, the gender differences in the FCs of the insular subdivisions with pain-related brain regions were revealed in the current study, offering neuroimaging evidence for gender differences in pain processing. ClinicalTrials.gov, NCT02820974 . Registered 28 June 2016.

  20. Local staging of sigmoid colonic cancer using MRI

    DEFF Research Database (Denmark)

    Rafaelsen, Søren Rafael; Dam, Claus; Jakobsen, Anders

    s/mm2. Regions of interest (ROIs) on the ADC map were drawn manually within the solid tumour part containing slices. The size and position of the ROIs was selected to cover the entire tumour area on a single section containing the largest available tumour area. The ADC values were blindly compared...

  1. Functional connectivity analysis of fMRI data using parameterized regions-of-interest.

    NARCIS (Netherlands)

    Weeda, W.D.; Waldorp, L.J.; Grasman, R.P.P.P.; van Gaal, S.; Huizenga, H.M.

    2011-01-01

    Connectivity analysis of fMRI data requires correct specification of regions-of-interest (ROIs). Selection of ROIs based on outcomes of a GLM analysis may be hindered by conservativeness of the multiple comparison correction, while selection based on brain anatomy may be biased due to inconsistent

  2. Evaluation in femoral neck fracture scintimetry: modes of region of interest selection and influence on results

    Energy Technology Data Exchange (ETDEWEB)

    Holmberg, S.; Mesko, L.; Stroemqvist, B.; Thorngren, K.G.

    1985-04-01

    Different sized ROIs within the femoral head and different modes of calculation were used in (/sup 99m/Tc)MDP scintimetry after femoral neck fracture. In preoperative scintimetry, correction for increased trochanteric uptake gave the best discrimination, whereas in postoperative scintimetry the direct ratio fractured/intact femoral head was superior. The change in ROI size had little influence.

  3. Evaluation in femoral neck fracture scintimetry: modes of region of interest selection and influence on results

    International Nuclear Information System (INIS)

    Holmberg, S.; Mesko, L.; Stroemqvist, B.; Thorngren, K.G.

    1985-01-01

    Different sized ROIs within the femoral head and different modes of calculation were used in [/sup 99m/Tc]MDP scintimetry after femoral neck fracture. In preoperative scintimetry, correction for increased trochanteric uptake gave the best discrimination, whereas in postoperative scintimetry the direct ratio fractured/intact femoral head was superior. The change in ROI size had little influence

  4. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    The scheme divide Digital Imaging and Communications in Medicine (DICOM) image into two parts ROI and non-ROI (non-region of interest). The DS (Digital Signature) which include patient data and SOP Instance UID are embedded randomly into the LSB border of the image. The DWT (Discrete Wavelet Transform) of ...

  5. Influence of hilar deposition in the evaluation of the alveolar epithelial permeability on 99mTc-DTPA aerosol inhaled scintigraphy

    International Nuclear Information System (INIS)

    Ogi, Shigeyuki; Uchiyama, Mayuki; Fukuda, Kunihiko; Urashima, Mitsuyoshi; Gotoh, Eisuke; Fukumitsu, Nobuyoshi

    2009-01-01

    We investigated whether hilar radioaerosol deposition affects the clearance rate of technetium-99m-labeled diethylenetriaminepentaacetic acid ( 99m Tc-DTPA) from peripheral alveolar regions. A total of 38 patients underwent 99m Tc-DTPA inhalation lung scintigraphy. Six region of interest (ROI) patterns were adopted: ROI 1 was outlined around the entire hemithorax, and ROIs 2-6 were outlined around the hemithorax but excluded square ROIs of different size in the hilar region. Half-times (T 1/2 ) were calculated with time-activity curves using one-compartment and two-compartment analyses. The T 1/2 of ROIs 1-5 were plotted against the T 1/2 of ROI 6, and regression lines were obtained with the least-squares method. The absolute values of the differences between surveyed values and regression line were calculated. The Wilcoxon test for trend and a single linear regression model were used to determine statistical significance. There were significant reductions in the absolute values of the differences between surveyed values and regression line from ROIs 1-5 by one-component analysis and the fast component of two-compartment analysis (P 99m Tc-DTPA from the alveoli in damaged lungs. The hilar region should be excluded from ROIs when alveolar epithelial permeability is evaluated. (author)

  6. Financial analysis of technology acquisition using fractionated lasers as a model.

    Science.gov (United States)

    Jutkowitz, Eric; Carniol, Paul J; Carniol, Alan R

    2010-08-01

    Ablative fractional lasers are among the most advanced and costly devices on the market. Yet, there is a dearth of published literature on the cost and potential return on investment (ROI) of such devices. The objective of this study was to provide a methodological framework for physicians to evaluate ROI. To facilitate this analysis, we conducted a case study on the potential ROI of eight ablative fractional lasers. In the base case analysis, a 5-year lease and a 3-year lease were assumed as the purchase option with a $0 down payment and 3-month payment deferral. In addition to lease payments, service contracts, labor cost, and disposables were included in the total cost estimate. Revenue was estimated as price per procedure multiplied by total number of procedures in a year. Sensitivity analyses were performed to account for variability in model assumptions. Based on the assumptions of the model, all lasers had higher ROI under the 5-year lease agreement compared with that for the 3-year lease agreement. When comparing results between lasers, those with lower operating and purchase cost delivered a higher ROI. Sensitivity analysis indicates the model is most sensitive to purchase method. If physicians opt to purchase the device rather than lease, they can significantly enhance ROI. ROI analysis is an important tool for physicians who are considering making an expensive device acquisition. However, physicians should not rely solely on ROI and must also consider the clinical benefits of a laser. (c) Thieme Medical Publishers.

  7. The use of oral nutritional supplements in an Irish community setting.

    LENUS (Irish Health Repository)

    Kennelly, S

    2009-12-01

    The frequency of oral nutritional supplement (ONS) prescribing has been increasing steadily in the Republic of Ireland (ROI). Available evidence indicates that health professionals in the community setting in the ROI have a poor level of knowledge about ONS. The objectives of the present study were to investigate ONS prescribing practices and to identify the types of patient who were prescribed these products.

  8. ADN to BSN: lessons from human capital theory.

    Science.gov (United States)

    Graf, Christina M

    2006-01-01

    Currently, approximately 16% of associate degree nursing (ADN) graduates acquire baccalaureate or higher degrees. Human capital analysis demonstrated negative to minimal average returns on investment (ROI) in BSN education. Increasing the ROI may influence ADNs to pursue baccalaureate education and can be an effective strategy for meeting the projected need for BSN-prepared nurses.

  9. Technical note: A stereological analysis of the cross-sectional variability of the femoral osteon population

    DEFF Research Database (Denmark)

    Villa, Chiara; Lynnerup, Niels

    2010-01-01

    Unbiased selection of regions of interest (ROIs) and unbiased definition of histological structures are needed to improve the repeatability of microscopic methods for age at death determination and to reduce operator subjectivity. We present results obtained by selecting ROIs according to stereol...

  10. SPM analysis of parametric (R)-[11C]PK11195 binding images: plasma input versus reference tissue parametric methods

    NARCIS (Netherlands)

    Schuitemaker, Alie; van Berckel, Bart N. M.; Kropholler, Marc A.; Veltman, Dick J.; Scheltens, Philip; Jonker, Cees; Lammertsma, Adriaan A.; Boellaard, Ronald

    2007-01-01

    (R)-[11C]PK11195 has been used for quantifying cerebral microglial activation in vivo. In previous studies, both plasma input and reference tissue methods have been used, usually in combination with a region of interest (ROI) approach. Definition of ROIs, however, can be labourious and prone to

  11. Automatic detection of regions of interest in mammographic images

    Science.gov (United States)

    Cheng, Erkang; Ling, Haibin; Bakic, Predrag R.; Maidment, Andrew D. A.; Megalooikonomou, Vasileios

    2011-03-01

    This work is a part of our ongoing study aimed at comparing the topology of anatomical branching structures with the underlying image texture. Detection of regions of interest (ROIs) in clinical breast images serves as the first step in development of an automated system for image analysis and breast cancer diagnosis. In this paper, we have investigated machine learning approaches for the task of identifying ROIs with visible breast ductal trees in a given galactographic image. Specifically, we have developed boosting based framework using the AdaBoost algorithm in combination with Haar wavelet features for the ROI detection. Twenty-eight clinical galactograms with expert annotated ROIs were used for training. Positive samples were generated by resampling near the annotated ROIs, and negative samples were generated randomly by image decomposition. Each detected ROI candidate was given a confidences core. Candidate ROIs with spatial overlap were merged and their confidence scores combined. We have compared three strategies for elimination of false positives. The strategies differed in their approach to combining confidence scores by summation, averaging, or selecting the maximum score.. The strategies were compared based upon the spatial overlap with annotated ROIs. Using a 4-fold cross-validation with the annotated clinical galactographic images, the summation strategy showed the best performance with 75% detection rate. When combining the top two candidates, the selection of maximum score showed the best performance with 96% detection rate.

  12. Redox cycling of potential antitumor aziridinylquinones

    NARCIS (Netherlands)

    Lusthof, Klaas J.; de Mol, Nicolaas J.; Richter, Wilma; Janssen, Lambert H.M.; Butler, John; Hoey, Brigid M.; Verboom, Willem; Reinhoudt, David

    1992-01-01

    The formation of reactive oxygen intermediates (ROI) during redox cycling of newly synthetized potential antitumor 2,5-bis (1-aziridinyl)-1,4-benzoquinone (BABQ) derivatives has been studied by assaying the production of ROI (superoxide, hydroxyl radical, and hydrogen peroxide) by xanthine oxidase

  13. Data-driven classification of ventilated lung tissues using electrical impedance tomography

    International Nuclear Information System (INIS)

    Gómez-Laberge, Camille; Hogan, Matthew J; Elke, Gunnar; Weiler, Norbert; Frerichs, Inéz; Adler, Andy

    2011-01-01

    Current methods for identifying ventilated lung regions utilizing electrical impedance tomography images rely on dividing the image into arbitrary regions of interest (ROI), manually delineating ROI, or forming ROI with pixels whose signal properties surpass an arbitrary threshold. In this paper, we propose a novel application of a data-driven classification method to identify ventilated lung ROI based on forming k clusters from pixels with correlated signals. A standard first-order model for lung mechanics is then applied to determine which ROI correspond to ventilated lung tissue. We applied the method in an experimental study of 16 mechanically ventilated swine in the supine position, which underwent changes in positive end-expiratory pressure (PEEP) and fraction of inspired oxygen (F I O 2 ). In each stage of the experimental protocol, the method performed best with k = 4 and consistently identified 3 lung tissue ROI and 1 boundary tissue ROI in 15 of the 16 subjects. When testing for changes from baseline in lung position, tidal volume, and respiratory system compliance, we found that PEEP displaced the ventilated lung region dorsally by 2 cm, decreased tidal volume by 1.3%, and increased the respiratory system compliance time constant by 0.3 s. F I O 2 decreased tidal volume by 0.7%. All effects were tested at p < 0.05 with n = 16. These findings suggest that the proposed ROI detection method is robust and sensitive to ventilation dynamics in the experimental setting

  14. Content-based image retrieval applied to bone age assessment

    Science.gov (United States)

    Fischer, Benedikt; Brosig, André; Welter, Petra; Grouls, Christoph; Günther, Rolf W.; Deserno, Thomas M.

    2010-03-01

    Radiological bone age assessment is based on local image regions of interest (ROI), such as the epiphysis or the area of carpal bones. These are compared to a standardized reference and scores determining the skeletal maturity are calculated. For computer-aided diagnosis, automatic ROI extraction and analysis is done so far mainly by heuristic approaches. Due to high variations in the imaged biological material and differences in age, gender and ethnic origin, automatic analysis is difficult and frequently requires manual interactions. On the contrary, epiphyseal regions (eROIs) can be compared to previous cases with known age by content-based image retrieval (CBIR). This requires a sufficient number of cases with reliable positioning of the eROI centers. In this first approach to bone age assessment by CBIR, we conduct leaving-oneout experiments on 1,102 left hand radiographs and 15,428 metacarpal and phalangeal eROIs from the USC hand atlas. The similarity of the eROIs is assessed by cross-correlation of 16x16 scaled eROIs. The effects of the number of eROIs, two age computation methods as well as the number of considered CBIR references are analyzed. The best results yield an error rate of 1.16 years and a standard deviation of 0.85 years. As the appearance of the hand varies naturally by up to two years, these results clearly demonstrate the applicability of the CBIR approach for bone age estimation.

  15. 41 CFR 102-85.15 - What are the basic policies for charging Rent for space and services?

    Science.gov (United States)

    2010-07-01

    ... 2%) on the cost of the prospective capital investment. Each specific use of Return on Investment... customer agency. Once the ROI methodology is employed to establish Rent for a capital investment, the ROI...-owned buildings, a return on investment pricing approach if an appraisal-determined rental value does...

  16. Interobserver and Intraobserver Reproducibility with Volume Dynamic Contrast Enhanced Computed Tomography (DCE-CT) in Gastroesophageal Junction Cancer

    DEFF Research Database (Denmark)

    Lundsgaard Hansen, Martin; Fallentin, Eva; Axelsen, Thomas

    2016-01-01

    -dimensional (2D) fixed ROIs) placed in the tumor periphery, (II) 2-dimensional regions of interest (2D-ROI) along the tumor border in the tumor center, and (III) 3-dimensional volumes of interest (3D-VOI) containing the entire tumor volume. Arterial flow, blood volume and permeability (k(trans)) were recorded...

  17. Search of collectivity at N >= 52 via lifetime measurements in ^96-98Ru

    Science.gov (United States)

    Kharraja, B.; Garg, U.; Ghugre, S. S.; Frohlich, A.; Ahmad, I.; Amro, H.; Blumenthal, D.; Carpenter, M. P.; Crowell, B.; Fisher, S.; Janssens, R. V. F.; Khoo, T. L.; Lauritsen, T.; Nissius, D.; Reviol, W.; Mueller, W.; Govil, I. M.; Ma, W. C.; Kaczarowski, R.; Ruchowska, E.

    1996-05-01

    Level structures of nuclei with N ~ 50 and Z ~ 40 exhibit interesting interplay between the single particle and collective degrees of freedom. Lifetime measurements are crucial to ascertain the intrinsic structures of the observed level sequences in this region and, specificaly to verify the onset of collectivity. This motivated us to undertake lifetime measurements using the RDM technique for ^96-98Ru nuclei. These nuclei were populated via the ^65Cu(^36Si,pyn) reaction at 142 MeV, and the Argonne-Notre Dame γ-ray facility was employed in conjonction with the Notre Dame plunger. Data were connected in coincidence at 12 distances rangin from 10 μm to 1000 μm giving us an effective lifetime range 1 ps to 400 ps.

  18. Scaling up a CMS tier-3 site with campus resources and a 100 Gb/s network connection: what could go wrong?

    Science.gov (United States)

    Wolf, Matthias; Woodard, Anna; Li, Wenzhao; Hurtado Anampa, Kenyi; Tovar, Benjamin; Brenner, Paul; Lannon, Kevin; Hildreth, Mike; Thain, Douglas

    2017-10-01

    The University of Notre Dame (ND) CMS group operates a modest-sized Tier-3 site suitable for local, final-stage analysis of CMS data. However, through the ND Center for Research Computing (CRC), Notre Dame researchers have opportunistic access to roughly 25k CPU cores of computing and a 100 Gb/s WAN network link. To understand the limits of what might be possible in this scenario, we undertook to use these resources for a wide range of CMS computing tasks from user analysis through large-scale Monte Carlo production (including both detector simulation and data reconstruction.) We will discuss the challenges inherent in effectively utilizing CRC resources for these tasks and the solutions deployed to overcome them.

  19. Recent results from the TwinSol low-energy RIB facility

    Energy Technology Data Exchange (ETDEWEB)

    Becchetti, F.D. [U. Michigan, Ann Arbor, MI 48109 (United States); Kolata, J.J. [U. Notre Dame, Notre Dame, IN 46556 (United States)

    2016-06-01

    We report on some of the recent developments and experimental work done at the twin-solenoid low-energy radioactive-ion-beam (RIB) facility TwinSol installed at the U Notre Dame 10 MV FN tandem accelerator. The TwinSol facility is a joint project of the University of Michigan (UM) and the University of Notre Dame (UND), and includes several U.S. and foreign collaborators. A number of significant experiments including RIB-induced transfer reactions, elastic scattering, resonant scattering, and fusion at energies near and well below the Coulomb barrier have been performed with this facility. Several of these as well as future work and upgrades planned will be described.

  20. Committees and sponsors

    Science.gov (United States)

    2011-10-01

    International Advisory Committee Richard F CastenYale, USA Luiz Carlos ChamonSão Paulo, Brazil Osvaldo CivitareseLa Plata, Argentina Jozsef CsehATOMKI, Hungary Jerry P DraayerLSU, USA Alfredo Galindo-UribarriORNL & UT, USA James J KolataNotre Dame, USA Jorge López UTEP, USA Joseph B NatowitzTexas A & M, USA Ma Esther Ortiz IF-UNAM Stuart PittelDelaware, USA Andrés SandovalIF-UNAM Adam SzczepaniakIndiana, USA Piet Van IsackerGANIL, France Michael WiescherNotre Dame, USA Organizing Committee Libertad Barrón-Palos (Chair)IF-UNAM Roelof BijkerICN-UNAM Ruben FossionICN-UNAM David LizcanoININ Sponsors Instituto de Ciencias Nucleares, UNAMInstituto de Física, UNAMInstituto Nacional de Investigaciones NuclearesDivisión de Física Nuclear de la SMFCentro Latinoamericano de Física

  1. Enabling data-intensive science with Tactical Storage Systems

    CERN Multimedia

    CERN. Geneva; Marquina, Miguel Angel

    2006-01-01

    Large scale scientific computing requires the ability to share and consume data and storage in complex ways across multiple systems. However, conventional systems constrain users to the fixed abstractions selected by the local system administrator. The result is that users must either move data manually over the wide area or simply be satisfied with the resources of a single cluster. To remedy this situation, we introduce the concept of a tactical storage system (TSS) that allows users to create, reconfigure, and destroy distributed storage systems without special privileges or complex configuration. We have deployed a prototype TSS of 200 disks and 8 TB of storage at the University of Notre Dame and applied it to several problems in astrophysics, high energy physics, and bioinformatics. This talk will focus on novel system structures that support data-intensive science. About the speaker: Douglas Thain is an Assistant Professor of Computer Science and Engineering at the University of Notre Dame. He received ...

  2. The success of the 45th CERN Relay Race

    CERN Multimedia

    CERN Bulletin

    2015-01-01

    On Thursday, 21 May, 783 people (9 Nordic walkers and 129 teams of 6 runners each) took part in the 45th CERN Relay Race.   The teams were divided into eight different categories: three CERN categories (Seniors, Dames, Mixte) – in which the six runners in the team must belong to the same professional unit – and four “open” categories (Open, Veterans Open, Dames Open, Mixte Open) - in which the six runners in the team do not necessarily belong to the same professional unit and can include people from outside CERN. Each team covered 3,600 metres around the Meyrin site, with the race's fastest runners covering this distance in only 11 minutes and 5 seconds! (See all the results here. For more photos from the event, see here, here and here.)  

  3. Promoting Sustainability through Investment in Building Information Modeling (BIM Technologies: A Design Company Perspective

    Directory of Open Access Journals (Sweden)

    Marius Reizgevičius

    2018-02-01

    Full Text Available The aim of this article is to enhance the understanding of how design companies perceive the benefits of Building Information Modeling (BIM technologies application. BIM is recognized in the literature as a (potentially powerful driver leading the construction sector towards sustainability. However, for design companies, the choice to invest in BIM technologies is basically an economic one. Specifically, a design company assesses economic benefits and efficiency improvements thanks to the application of BIM technologies. The article discusses the return on investments (ROI in BIM technologies and reviews ROI calculation methodologies proposed by other authors. In order to evaluate BIM return on investment correctly practical ROI calculations are carried out. Appropriate methods, together with the relevant variables for ROI calculation, are developed. The study allows for adjusting the calculation method making it more accurate and understandable using the Autodesk Revit based ROI calculation of the first year.

  4. Exact iterative reconstruction for the interior problem

    International Nuclear Information System (INIS)

    Zeng, Gengsheng L; Gullberg, Grant T

    2009-01-01

    There is a trend in single photon emission computed tomography (SPECT) that small and dedicated imaging systems are becoming popular. For example, many companies are developing small dedicated cardiac SPECT systems with different designs. These dedicated systems have a smaller field of view (FOV) than a full-size clinical system. Thus data truncation has become the norm rather than the exception in these systems. Therefore, it is important to develop region of interest (ROI) reconstruction algorithms using truncated data. This paper is a stepping stone toward this direction. This paper shows that the common generic iterative image reconstruction algorithms are able to exactly reconstruct the ROI under the conditions that the convex ROI is fully sampled and the image value in a sub-region within the ROI is known. If the ROI includes a sub-region that is outside the patient body, then the conditions can be easily satisfied.

  5. Return on Investment of a Work-Family Intervention: Evidence From the Work, Family, and Health Network.

    Science.gov (United States)

    Barbosa, Carolina; Bray, Jeremy W; Dowd, William N; Mills, Michael J; Moen, Phyllis; Wipfli, Brad; Olson, Ryan; Kelly, Erin L

    2015-09-01

    To estimate the return on investment (ROI) of a workplace initiative to reduce work-family conflict in a group-randomized 18-month field experiment in an information technology firm in the United States. Intervention resources were micro-costed; benefits included medical costs, productivity (presenteeism), and turnover. Regression models were used to estimate the ROI, and cluster-robust bootstrap was used to calculate its confidence interval. For each participant, model-adjusted costs of the intervention were $690 and company savings were $1850 (2011 prices). The ROI was 1.68 (95% confidence interval, -8.85 to 9.47) and was robust in sensitivity analyses. The positive ROI indicates that employers' investment in an intervention to reduce work-family conflict can enhance their business. Although this was the first study to present a confidence interval for the ROI, results are comparable with the literature.

  6. Analysis of Return on Investment in Different Types of Agile Software Development Project Teams

    Directory of Open Access Journals (Sweden)

    Goran MILANOV

    2012-01-01

    Full Text Available This exploratory study of IT project teams in Serbia investigates how the choice of agile methods in different development project teams affects the return-on-investment (ROI. In this paper different types of software project teams are analyzed in order to examine and identify the business-value of using agile methods. In various software development project teams, the ROI of agile methods is yet to be fully explored, while the ROI of traditional methods is well-understood. Since ROI is important indicator of the projects success, in this paper we examine the factors that influence the ROI both from software solution customer point of view, and different agile project teams.

  7. Deconvoluting the Complexity of Bone Metastatic Prostate Cancer via Computational Modeling

    Science.gov (United States)

    2016-09-01

    fluent in English and Spanish and have experience in IT, programming, cell culture, teaching , art, graphic design, and leadership skills. Personal...2007) Teacher programme for the translation of science into classrooms University of Notre Dame, Indiana, USA (2004-2005) One-Year Academic Exchange...integrated computational modeling approach can be used to predict the temporal behavior of bone metastatic prostate cancer heterogeneous for TGFβ and

  8. Aardejahil Luke mõisapargis / Heli Raamets

    Index Scriptorium Estoniae

    Raamets, Heli, 1975-

    2008-01-01

    Lühidalt Luke mõisa ajaloost, omanikest ja mõisaansamblist. Terrasside ja taastatud tiikidesüsteemiga pargist. Külastuskeskusest arhitekt Eva Laarmanni projekti järgi rekonstrueeritud puitpitsiga kärnerimajas. Veenuse kuju taastas firmas Kar-Grupp Tallinnas. SA Luke Mõis juhatuse liige Gea Järvela Luke tulevikuplaanidest. Mõisasüdame makett, 12 värv. vaadet

  9. International team with Virginia Tech participation maps genome of dengue and yellow fever mosquito

    OpenAIRE

    Trulove, Susan

    2007-01-01

    Developing new strategies to prevent and control yellow fever and dengue fever has become more possible with the completion of the first draft of the genome sequence of Aedes aegypti mosquito by scientists led by Vishvanath Nene at The Institute for Genomic Research (TIGR) and David Severson at the University of Notre Dame. The genome is the complete set of genetic material including genes and other segments of DNA in an organism.

  10. [Research in high energy physics

    International Nuclear Information System (INIS)

    LoSecco, J.

    1989-01-01

    We review the efforts of the Notre Dame non accelerator high energy physics group. Our major effort has been directed toward the IMB deep underground detector. Since the departure of the Michigan group our responsibilities to the group have grown. We are also very active in pursuing physics with the IMB 3 detector. Currently we are studying proton decay, point neutrino sources and neutrino oscillations with the contained event sample

  11. Sex-specific sleep patterns among university students in Lebanon: impact on depression and academic performance

    OpenAIRE

    Kabrita, Colette S; Hajjar-Mu?a, Theresa A

    2016-01-01

    Colette S Kabrita,1 Theresa A Hajjar-Muça,2 1Department of Sciences, 2Department of Mathematics and Statistics, Faculty of Natural and Applied Sciences, Notre Dame University – Louaize, Zouk Mosbeh, Lebanon Abstract: Good sleep quality and quantity are fundamental to the maintenance of normal physiological processes. Changes in sleep patterns are commonly observed among young adults and are shown to impact neurocognitive, academic, and psychological well-being. Given the ...

  12. Predator Force Structure Changes at Indian Springs Air Force Auxiliary Field, Nevada Environmental Assessment

    Science.gov (United States)

    2003-07-01

    for bird-aircraft strikes is greatest in bird migration corridors (flyways) or where birds congregate for foraging or resting (e.g., open water bodies...AFB, primarily outside of the fences, are as follows (Dames & Moore 1996a; USAF 1997, 1999): 1. A diverse herpetofauna that includes desert iguana ...site, and insufficient quantity and quality of forage species as well as a lack of suitable substrate for burrowing due to the shallow depth and rocky

  13. 1905. aasta eesti romaanis / Cornelius Hasselblatt

    Index Scriptorium Estoniae

    Hasselblatt, Cornelius, 1960-

    2015-01-01

    Vaadeldakse järgmisi romaane: Tammsaare, A. H. Tõde ja õigus III (1931, lühendatud variant 1968) ; Kärner, Jaan. Tõusev rahvas I-II (1936-1937) ; Kangro, Bernard. Kuma taevarannal (1950) ; Hint, Aadu. Tuuline rand I (1951, uus variant 1952) ; Krusten, Erni. Noorte südamed I-II (1954-1956) ; Ruben, Aarne. Volta annab kaeblikku vilet (2001)

  14. 1905. aasta Eesti romaanis / Cornelius Hasselblatt

    Index Scriptorium Estoniae

    Hasselblatt, Cornelius, 1960-

    2007-01-01

    Vaadeldakse järgmisi romaane: Tammsaare, A. H. Tõde ja õigus III (1931, lühendatud variant 1968) ; Kärner, Jaan. Tõusev rahvas I-II (1936-1937) ; Kangro, Bernard. Kuma taevarannal (1950) ; Hint, Aadu. Tuuline rand I (1951, uus variant 1952) ; Krusten, Erni. Noorte südamed I-II (1954-1956) ; Ruben, Aarne. Volta annab kaeblikku vilet (2001)

  15. Uudised : Urmas Alenderile pühendatud festival Paides. Heiki Mätlik kirjutab Bachist. Ungari muusika Balti misjonikeskuses. Hans van Manen lavastas Pärti

    Index Scriptorium Estoniae

    2000-01-01

    25. nov. Paides toimuvast U. Alenderi loomingule pühendatud muusikafestival-konkursist Alenderfest "Südame hääl". Ilmus H. Mätliku kolmeosaline traktaat Bachi lautomuusika interpretatsioonist ja arranzheerimisest kitarrile. 20. okt. Balti misjonikeskuses toimuvast ungari pärimusmuusikakontserdist. H. van Manen kasutab uue lühiballettide kava "Tantsu laureaadid" lavastuses A. Pärdi teost "Spiegel im Spiegel"

  16. U.S. Military Action Against the Islamic State: Answers to Frequently Asked Legal Questions

    Science.gov (United States)

    2014-09-09

    and exclusive power of the President as the sole organ of the federal government in the field of international relations”). U.S. Military Action...with relevant statutory authority,26 there has been little jurisprudence concerning the scope of presidential authority to order the use of force...29 Dames & Moore, 453 U.S. 678-679 ( internal citations omitted). 30 Medellin v. Texas, 552 U.S. 491, 531-532 (2008) ( internal citations omitted

  17. Breckinridge Project, initial effort. Report VII, Volume III. Cultural resource assessment socioeconomic background data

    Energy Technology Data Exchange (ETDEWEB)

    Macfarlane, Heather; Janzen, Donald E.

    1980-11-26

    This report has been prepared in conjunction with an environmental baseline study for a commercial coal conversion facility being conducted by Ashland Synthetic Fuels, Inc. (ASFI) and Airco Energy Company (AECO). This report represents a cultural resource assessment for the proposed plant site and two potential solid waste disposal areas. This assessment presents data collected by Dames and Moore during a recent archaeological reconnaissance of the unsurveyed southeastern portion of the proposed plant site and two potential solid waste disposal areas. Also, results of two previous surveys on the northern and southwestern portion of the plant site for American Smelting and Refining Company (ASARCO) and Kentucky Utilities are included. The Dames and Moore survey of the southeastern portion of the plant site identified one archaeological site, three standing structures and one historic cemetery. In addition 47 archaeological sites and six standing structures are known from two previous surveys of the remainder of the plant site (Cowan 1975 and Turnbow et al 1980). Eleven of the previously recorded archaeological sites were recommended for further assessment to evaluate their potential for inclusion within the Holt Bottoms Archaeological District currently listed on the National Register of Historic Places. None of the archaeological sites or standing structures located within the plant site during the Dames and Moore survey were recommended for further assessment. A total of eight archaeological sites were located during the Dames and Moore survey of the two potential solid waste disposal areas. Of this total only two sites were recommended for further assessment. Also, one previously unknown historic cemetry was located in the southernmost potential waste disposal area.

  18. Catalytic Activation of Nitrogen Dioxide for Selective Synthesis of Nitroorganics

    Science.gov (United States)

    2015-01-15

    promising reactivity but have obvious drawbacks (high toxicity ). In contrast, bismuth has remarkably low toxicity (Pepto-Bismol® is a bismuth salt...University of Notre Dame FINAL PERFORMANCE REPORT 5 Nitrative ipso-Deboronation of Arylboronic Acids and their Pinacol Esters. Carbon- boron bonds...also works well for a number of other boronic acids and boronate esters, with good tolerance of ancillary functional groups. In some arylboronic

  19. Järvamaa : Äripäev maakonnas / Merike Lees

    Index Scriptorium Estoniae

    Lees, Merike, 1976-

    2007-01-01

    Järvamaa ettevõtete TOP. Vt. samas: Mäo tehnoküla paneb Eestimaa südame tuksuma. Diagramm; Järva gasellid üle Eesti ilma ei tee; Käsitöö annab Vikingile konkurentsieelise; Paide MEK toodab metallkonstruktsioone; Ülemaailmne turg tagab kasvuvõimaluse; Mäo tehnopargil piire pole. Küsimustele vastab Toomas Agasild

  20. Remediation in clay using two-phase vacuum extraction

    International Nuclear Information System (INIS)

    Lindhult, E.C.; Tarsavage, J.M.; Foukaris, K.A.

    1995-01-01

    Soil and groundwater contamination in a tight clay usually requires costly and/or time consuming remediation, due to the inherently low hydraulic conductivity of the soil. However, Dames and Moore is successfully using an innovative, cost-effective two-phase vacuum extraction (VE) technology at a former gasoline service station. Dramatic decreases in BTEX concentrations in onsite and downgradient monitoring wells are apparent

  1. Prostate-Specific Membrane Antigen Regulation of Prostate Tumor Growth, Angiogenesis,and Integrin Signal Transduction

    Science.gov (United States)

    2012-07-01

    mothers were maintained in 75% oxygen for five days. After 2.5 days in 75% oxygen, the lactating females were replaced with surrogate dames. Mice were... harmful side effects. To avoid this possibility we treated OIR mice with a single intravitreal injection of 2-PMPA on P14 and measured avascular area three...experiments. Oxygen Induced Retinopathy (OIR) Model Seven day old mice weighing 6g or greater and their lactating mothers were maintained in 75% oxygen

  2. Interactive Planning for Capability Driven Air & Space Operations

    Science.gov (United States)

    2008-04-30

    Time, Routledge and Kegan , London, UK, 1980. [5] A. Bochman, Concerted instant–interval temporal semantics I: Temporal ontologies, Notre Dame Journal...then return true else deleteStatement (X, rj , Y ) end if end for return false Figure 8 shows the search space for instance in Table 2. The green ...nodes are those for which the set of relations cor- responding to the path from the root form a consistent set. A path from root to a green leaf node

  3. Predictors of poor sleep quality among Lebanese university students: association between evening typology, lifestyle behaviors, and sleep habits

    OpenAIRE

    Kabrita, Colette S; Hajjar-Muça, Theresa A; Duffy, Jeanne F

    2014-01-01

    Colette S Kabrita,1 Theresa A Hajjar-Muça,2 Jeanne F Duffy31Department of Sciences, 2Department of Mathematics and Statistics, Faculty of Natural and Applied Sciences, Notre Dame University – Louaize, Zouk Mosbeh, Lebanon; 3Division of Sleep Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USAAbstract: Adequate, good night sleep is fundamental to well-being and is known to be influenced by myriad biological and en...

  4. Method and apparatus for improving the quality and efficiency of ultrashort-pulse laser machining

    Science.gov (United States)

    Stuart, Brent C.; Nguyen, Hoang T.; Perry, Michael D.

    2001-01-01

    A method and apparatus for improving the quality and efficiency of machining of materials with laser pulse durations shorter than 100 picoseconds by orienting and maintaining the polarization of the laser light such that the electric field vector is perpendicular relative to the edges of the material being processed. Its use is any machining operation requiring remote delivery and/or high precision with minimal collateral dames.

  5. LSZ asymptotic condition and dynamic equations in quantum field theory

    International Nuclear Information System (INIS)

    Arkhipov, A.A.; Savrin, V.I.

    1983-01-01

    Some techniques that may be appropriate for the derivation of dynamic equations in quantum field theory are considered. A new method of deriving equations based on the use of LSZ asymptotic condition is described. It is proved that with the help of this method it becomes possible to obtain equations for wave functions both of scattering and bound states. Work is described in several papers under the dame title. The first paper is devoted to the Bethe-Salpeter equation

  6. Evaluation of Marsh/Estuarine Water Quality and Ecological Models: An Interim Guide

    Science.gov (United States)

    1982-01-01

    benthic oxygen demand, benthic scour and deposition, photosynthesis and respiration of aquatic plants, and nitrification (Dobbins 1964; O’Connor 1967... photosynthesis , algal respiration, decom- position, and mixing processes play dominant roles, the understanding and characterization of significant pro...Adams, S. M. 1979. "A Mathematical Model of Trophic Dynamics in Estuarine Seagrass Communities," Marsh-Estuarine Systems Simulation, Dame, R. F., ed

  7. Workplace Health & Wellbeing: Considering the Tourism Workforce

    OpenAIRE

    Hemingway, Ann; Hartwell, Heather; Ladkin, Adele

    2014-01-01

    Against a background of increasing tourism employment, this paper explores the health of the tourism workforce. The rationale for this exploration stems from the current international debate regarding work place health and wellbeing (EU 2012). Research shows that promoting health and wellbeing in the workplace is beneficial for employers and employees (Kuhn & Van der Auwera 2013, Black 2008, Department of Work and Pensions 2012). Dame Carol Black in her 2008/11 review of the evidence conclude...

  8. Altered relationships between rCBF in different brain regions of never-treated schizophrenics

    International Nuclear Information System (INIS)

    Sabri, O.; Schreckenberger, M.; Cremerius, U.; Dickmann, C.; Schulz, G.; Zimny, M.; Buell, U.; Erkwoh, R.; Owega, A.; Sass, H.

    1997-01-01

    Aim of this study was to investigate the relations between regional cerebral blood flow (rCBF) of different brain regions in acute schizophrenia and following neuroleptic treatment. Methods: Twenty-two never-treated, acute schizophrenic patients were examined with HMPAO brain SPECT and assessed psychopathologically, and reexamined following neuroleptic treatment (over 96.8 days) and psychopathological remission. rCBF was determined by region/cerebellar count quotients obtained from 98 irregular regions of interest (ROIs), summed up to 11 ROIs on each hemisphere. In acute schizophrenics, interregional rCBF correlations of each ROI to every other ROI were compared to the interregional correlations following neuroleptic treatment and to those of controls. Results: All significant correlations of rCBF ratios of different brain regions were exclusively positive in controls and patients. In controls, all ROIs of one hemisphere except the mesial temporal ROI correlated significantly to its contralateral ROI. Each hemisphere showed significant frontal-temporal correlations, as well as cortical-subcortical and some cortico-limbic. In contrast, in acute schizophrenics nearly every ROI correlated significantly with every other ROI, without a grouping or relation of the rCBF of certain ROIs as in controls. After neuroleptic treatment and clinical improvement, this diffuse pattern of correlations remained. Conclusions: These results indicate differences in the neuronal interplay between regions in schizophrenic and healthy subjects. In nevertreated schizophrenics, diffuse interregional rCBF correlations can be seen as a sign of change and dysfunction of the systems regulating specificity and diversity of the neuronal functions. Neuroleptic therapy and psychopathologic remission showed no normalizing effect on interregional correlations. (orig.) [de

  9. Changes in the fractal dimension, feret diameter, and lacunarity of mandibular alveolar bone during initial healing of dental implants.

    Science.gov (United States)

    Önem, Erinç; Baksı, B Güniz; Sogur, Elif

    2012-01-01

    To evaluate the combination of fractal dimension (FD), lacunarity, and Feret diameter (FeD) to quantitatively characterize structural changes of mandibular alveolar bone around dental implants during initial healing. Three standard-sized regions of interest (ROIs) (mesial and distal crest and apical area) around implants and three ROIs of the same size in the alveolar bone on the contralateral side were analyzed on digital panoramic images. FD was calculated using the box-counting method, and lacunarity was calculated using the FracLac plugin of Image J software. FeD was measured in the same ROIs. Comparisons of the groups were done with the Dunnett test. Forty-two implants in the posterior mandibles of 21 patients were used for FD measurements. A total of 189 ROIs was segmented into binary images. Mean FD values for mesial, distal, and apical ROIs around implants were 1.26, 1.36, and 1.4, respectively. The mean FD of alveolar bone around premolars/molars was 1.39 for all ROIs. The mean FeD for mesial, distal, and apical ROIs around implants was 7.63, 7.86, and 8.02, respectively, whereas it ranged between 7.88 and 8.13 for premolar teeth. Mean lacunarity values for mesial, distal, and apical ROIs around implants were 0.53, 0.51, and 0.48, respectively. Lacunarity values for ROIs around premolars ranged between 0.45 and 0.50. No significant differences were observed in FD, FeD, or lacunarity measurements between ROIs around implants and around teeth. The satisfactory healing of bone following implant placement may be monitored by calculating FD, lacunarity, and FeD using digital panoramic images. Although preliminary, these values may alert the practitioner to any implants with loss of stability.

  10. Voxel-based morphometry and automated lobar volumetry: The trade-off between spatial scale and statistical correction

    Science.gov (United States)

    Voormolen, Eduard H.J.; Wei, Corie; Chow, Eva W.C.; Bassett, Anne S.; Mikulis, David J.; Crawley, Adrian P.

    2011-01-01

    Voxel-based morphometry (VBM) and automated lobar region of interest (ROI) volumetry are comprehensive and fast methods to detect differences in overall brain anatomy on magnetic resonance images. However, VBM and automated lobar ROI volumetry have detected dissimilar gray matter differences within identical image sets in our own experience and in previous reports. To gain more insight into how diverging results arise and to attempt to establish whether one method is superior to the other, we investigated how differences in spatial scale and in the need to statistically correct for multiple spatial comparisons influence the relative sensitivity of either technique to group differences in gray matter volumes. We assessed the performance of both techniques on a small dataset containing simulated gray matter deficits and additionally on a dataset of 22q11-deletion syndrome patients with schizophrenia (22q11DS-SZ) vs. matched controls. VBM was more sensitive to simulated focal deficits compared to automated ROI volumetry, and could detect global cortical deficits equally well. Moreover, theoretical calculations of VBM and ROI detection sensitivities to focal deficits showed that at increasing ROI size, ROI volumetry suffers more from loss in sensitivity than VBM. Furthermore, VBM and automated ROI found corresponding GM deficits in 22q11DS-SZ patients, except in the parietal lobe. Here, automated lobar ROI volumetry found a significant deficit only after a smaller subregion of interest was employed. Thus, sensitivity to focal differences is impaired relatively more by averaging over larger volumes in automated ROI methods than by the correction for multiple comparisons in VBM. These findings indicate that VBM is to be preferred over automated lobar-scale ROI volumetry for assessing gray matter volume differences between groups. PMID:19619660

  11. Pilot Study of the Use of Hybrid Multidimensional T2-Weighted Imaging-DWI for the Diagnosis of Prostate Cancer and Evaluation of Gleason Score.

    Science.gov (United States)

    Sadinski, Meredith; Karczmar, Gregory; Peng, Yahui; Wang, Shiyang; Jiang, Yulei; Medved, Milica; Yousuf, Ambereen; Antic, Tatjana; Oto, Aytekin

    2016-09-01

    The objective of our study was to evaluate the role of a hybrid T2-weighted imaging-DWI sequence for prostate cancer diagnosis and differentiation of aggressive prostate cancer from nonaggressive prostate cancer. Twenty-one patients with prostate cancer who underwent preoperative 3-T MRI and prostatectomy were included in this study. Patients underwent a hybrid T2-weighted imaging-DWI examination consisting of DW images acquired with TEs of 47, 75, and 100 ms and b values of 0 and 750 s/mm(2). The apparent diffusion coefficient (ADC) and T2 were calculated for cancer and normal prostate ROIs at each TE and b value. Changes in ADC and T2 as a function of increasing the TE and b value, respectively, were analyzed. A new metric termed "PQ4" was defined as the percentage of voxels within an ROI that has increasing T2 with increasing b value and has decreasing ADC with increasing TE. ADC values were significantly higher in normal ROIs than in cancer ROIs at all TEs (p T2 was significantly higher in normal ROIs than in cancer ROIs at both b values (p ≤ 0.0002). The mean T2 decreased with increasing b value in cancer ROIs (ΔT2 = -17 ms) and normal ROIs (ΔT2 = -52 ms). PQ4 clearly differentiated normal ROIs from prostate cancer ROIs (p = 0.0004) and showed significant correlation with Gleason score (ρ = 0.508, p T2 to changing TEs and b values, respectively. This approach shows promise for detecting prostate cancer and determining its aggressiveness noninvasively.

  12. Evaluation of auto region of interest settings for single photon emission computed tomography findings

    International Nuclear Information System (INIS)

    Mizuno, Takashi; Takahashi, Masaaki; Yoshioka, Katsunori

    2008-01-01

    It has been noted that the manual settings of region of interest (ROI) to the single-photon-emission-computed-tomography (SPECT) slice lacked objectivity when the fixed quantity value of regional cerebral blood flow (rCBF) was measured previously. Therefore, we jointly developed software Brain ROI' with Daiichi Radioisotope Laboratories, Ltd. (Present name: FUJIFILM RI Pharma Co., Ltd.) The software normalized an individual brain to a standard brain template by using Statistical Parametric Mapping 2 (SPM 2) of the easy Z-score Imaging System ver. 3.0 (eZIS Ver. 3.0), and the ROI template was set to a specific slice. In this study, we evaluated the accuracy of this software with an ROI template that we made of useful size and shape, in some clinical samples. The method of automatic setting of ROI was the objective. However, we felt that we should use the shape of the ROI template without the influence of brain atrophy. Moreover, we should see normalization of the individual brain and confirm the accuracy of normalization. When normalization failed, we should partially correct the ROI or set everything by manual operation for the operator. However, it was thought that this software was useful if the tendency was understood because examples of failure were few. (author)

  13. Comparison of two Medication Therapy Management Practice Models on Return on Investment.

    Science.gov (United States)

    Gazda, Nicholas P; Berenbrok, Lucas A; Ferreri, Stefanie P

    2017-06-01

    To compare the return on investment (ROI) of an integrated practice model versus a "hub and spoke" practice model of pharmacist provided medication therapy management (MTM). A cohort retrospective analysis of MTM claims billed in 76 pharmacies in North Carolina in the 2010 hub and spoke practice model and the 2012 "integrated" practice model were analyzed to calculate the ROI. In 2010, 4089 patients received an MTM resulting in 8757 claims in the hub and spoke model. In 2012, 4896 patients received an MTM resulting in 13 730 claims in the integrated model. In 2010, US$165 897.26 was invested in pharmacist salary and $173 498.00 was received in reimbursement, resulting in an ROI of +US$7600.74 (+4.6%). In 2012, US$280 890.09 was invested in pharmacist salary and US$302 963 was received in reimbursement, resulting in an ROI of +US$22 072.91 or (+7.9%). The integrated model of MTM showed an increase in number of claims submitted and in number of patients receiving MTM services, ultimately resulting in a higher ROI. While a higher ROI was evident in the integrated model, both models resulted in positive ROI (1:12-1:21), highlighting that MTM programs can be cost effective with different strategies of execution.

  14. Monitoring worksite clinic performance using a cost-benefit tool.

    Science.gov (United States)

    Tao, Xuguang; Chenoweth, David; Alfriend, Amy S; Baron, David M; Kirkland, Tracie W; Scherb, Jill; Bernacki, Edward J

    2009-10-01

    The purpose of this study was to explore the usefulness of continuously assessing the return on investment (ROI) of worksite medical clinics as a means of evaluating clinic performance. Visit data from January 1, 2007, to December 31, 2008, were collected from all the on-site clinics operated for the Pepsi Bottling Group. An average system-wide ROI was calculated from the time of each clinic's opening and throughout the study period. A multivariate linear regression model was used to determine the association of average ROI with penetration/utilization rate and plant size. A total of 26 on-site clinics were actively running as of December 2008. The average ROI at the time of start up was 0.4, which increased to 1.2 at approximately 4 months and 1.6 at the end of the first year of operation. Overall, it seems that the cost of operating a clinic becomes equal to the cost of similar care purchased in the community (ROI = 1) at approximately 3 months after a clinic's opening and flattens out at the end of the first year. The magnitude of the ROI was closely related to the number of visits (a function of the penetration/utilization rate) and the size of the plant population served. Serial monitoring of ROIs is a useful metric in assessing on-site clinic performance and quantifying the effect of new initiatives aimed at increasing a clinic's cost effectiveness.

  15. Region of interest-based versus whole-lung segmentation-based approach for MR lung perfusion quantification in 2-year-old children after congenital diaphragmatic hernia repair

    Energy Technology Data Exchange (ETDEWEB)

    Weis, M.; Sommer, V.; Hagelstein, C.; Schoenberg, S.O.; Neff, K.W. [Heidelberg University, Institute of Clinical Radiology and Nuclear Medicine, University Medical Center Mannheim, Medical Faculty Mannheim, Mannheim (Germany); Zoellner, F.G. [Heidelberg University, Computer Assisted Clinical Medicine, Medical Faculty Mannheim, Mannheim (Germany); Zahn, K. [University of Heidelberg, Department of Paediatric Surgery, University Medical Center Mannheim, Medical Faculty Mannheim, Mannheim (Germany); Schaible, T. [Heidelberg University, Department of Paediatrics, University Medical Center Mannheim, Medical Faculty Mannheim, Mannheim (Germany)

    2016-12-15

    With a region of interest (ROI)-based approach 2-year-old children after congenital diaphragmatic hernia (CDH) show reduced MR lung perfusion values on the ipsilateral side compared to the contralateral. This study evaluates whether results can be reproduced by segmentation of whole-lung and whether there are differences between the ROI-based and whole-lung measurements. Using dynamic contrast-enhanced (DCE) MRI, pulmonary blood flow (PBF), pulmonary blood volume (PBV) and mean transit time (MTT) were quantified in 30 children after CDH repair. Quantification results of an ROI-based (six cylindrical ROIs generated of five adjacent slices per lung-side) and a whole-lung segmentation approach were compared. In both approaches PBF and PBV were significantly reduced on the ipsilateral side (p always <0.0001). In ipsilateral lungs, PBF of the ROI-based and the whole-lung segmentation-based approach was equal (p=0.50). In contralateral lungs, the ROI-based approach significantly overestimated PBF in comparison to the whole-lung segmentation approach by approximately 9.5 % (p=0.0013). MR lung perfusion in 2-year-old children after CDH is significantly reduced ipsilaterally. In the contralateral lung, the ROI-based approach significantly overestimates perfusion, which can be explained by exclusion of the most ventral parts of the lung. Therefore whole-lung segmentation should be preferred. (orig.)

  16. Theoretical Study of Penalized-Likelihood Image Reconstruction for Region of Interest Quantification

    International Nuclear Information System (INIS)

    Qi, Jinyi; Huesman, Ronald H.

    2006-01-01

    Region of interest (ROI) quantification is an important task in emission tomography (e.g., positron emission tomography and single photon emission computed tomography). It is essential for exploring clinical factors such as tumor activity, growth rate, and the efficacy of therapeutic interventions. Statistical image reconstruction methods based on the penalized maximum-likelihood (PML) or maximum a posteriori principle have been developed for emission tomography to deal with the low signal-to-noise ratio of the emission data. Similar to the filter cut-off frequency in the filtered backprojection method, the regularization parameter in PML reconstruction controls the resolution and noise tradeoff and, hence, affects ROI quantification. In this paper, we theoretically analyze the performance of ROI quantification in PML reconstructions. Building on previous work, we derive simplified theoretical expressions for the bias, variance, and ensemble mean-squared-error (EMSE) of the estimated total activity in an ROI that is surrounded by a uniform background. When the mean and covariance matrix of the activity inside the ROI are known, the theoretical expressions are readily computable and allow for fast evaluation of image quality for ROI quantification with different regularization parameters. The optimum regularization parameter can then be selected to minimize the EMSE. Computer simulations are conducted for small ROIs with variable uniform uptake. The results show that the theoretical predictions match the Monte Carlo results reasonably well

  17. Region of interest-based versus whole-lung segmentation-based approach for MR lung perfusion quantification in 2-year-old children after congenital diaphragmatic hernia repair

    International Nuclear Information System (INIS)

    Weis, M.; Sommer, V.; Hagelstein, C.; Schoenberg, S.O.; Neff, K.W.; Zoellner, F.G.; Zahn, K.; Schaible, T.

    2016-01-01

    With a region of interest (ROI)-based approach 2-year-old children after congenital diaphragmatic hernia (CDH) show reduced MR lung perfusion values on the ipsilateral side compared to the contralateral. This study evaluates whether results can be reproduced by segmentation of whole-lung and whether there are differences between the ROI-based and whole-lung measurements. Using dynamic contrast-enhanced (DCE) MRI, pulmonary blood flow (PBF), pulmonary blood volume (PBV) and mean transit time (MTT) were quantified in 30 children after CDH repair. Quantification results of an ROI-based (six cylindrical ROIs generated of five adjacent slices per lung-side) and a whole-lung segmentation approach were compared. In both approaches PBF and PBV were significantly reduced on the ipsilateral side (p always <0.0001). In ipsilateral lungs, PBF of the ROI-based and the whole-lung segmentation-based approach was equal (p=0.50). In contralateral lungs, the ROI-based approach significantly overestimated PBF in comparison to the whole-lung segmentation approach by approximately 9.5 % (p=0.0013). MR lung perfusion in 2-year-old children after CDH is significantly reduced ipsilaterally. In the contralateral lung, the ROI-based approach significantly overestimates perfusion, which can be explained by exclusion of the most ventral parts of the lung. Therefore whole-lung segmentation should be preferred. (orig.)

  18. Multi-Task Vehicle Detection with Region-of-Interest Voting.

    Science.gov (United States)

    Chu, Wenqing; Liu, Yao; Shen, Chen; Cai, Deng; Hua, Xian-Sheng

    2017-10-12

    Vehicle detection is a challenging problem in autonomous driving systems, due to its large structural and appearance variations. In this paper, we propose a novel vehicle detection scheme based on multi-task deep convolutional neural networks (CNN) and region-of-interest (RoI) voting. In the design of CNN architecture, we enrich the supervised information with subcategory, region overlap, bounding-box regression and category of each training RoI as a multi-task learning framework. This design allows the CNN model to share visual knowledge among different vehicle attributes simultaneously, thus detection robustness can be effectively improved. In addition, most existing methods consider each RoI independently, ignoring the clues from its neighboring RoIs. In our approach, we utilize the CNN model to predict the offset direction of each RoI boundary towards the corresponding ground truth. Then each RoI can vote those suitable adjacent bounding boxes which are consistent with this additional information. The voting results are combined with the score of each RoI itself to find a more accurate location from a large number of candidates. Experimental results on the real-world computer vision benchmarks KITTI and the PASCAL2007 vehicle dataset show that our approach achieves superior performance in vehicle detection compared with other existing published works.

  19. Systematic review on the financial return of worksite health promotion programmes aimed at improving nutrition and/or increasing physical activity.

    Science.gov (United States)

    van Dongen, J M; Proper, K I; van Wier, M F; van der Beek, A J; Bongers, P M; van Mechelen, W; van Tulder, M W

    2011-12-01

    This systematic review summarizes the current evidence on the financial return of worksite health promotion programmes aimed at improving nutrition and/or increasing physical activity. Data on study characteristics and results were extracted from 18 studies published up to 14 January 2011. Two reviewers independently assessed the risk of bias of included studies. Three metrics were (re-)calculated per study: the net benefits, benefit cost ratio (BCR) and return on investment (ROI). Metrics were averaged, and a post hoc subgroup analysis was performed to compare financial return estimates between study designs. Four randomized controlled trials (RCTs), 13 non-randomized studies (NRSs) and one modelling study were included. Average financial return estimates in terms of absenteeism benefits (NRS: ROI 325%, BCR 4.25; RCT: ROI -49%, BCR 0.51), medical benefits (NRS: ROI 95%, BCR 1.95; RCT: ROI -112%, BCR -0.12) or both (NRS: ROI 387%, BCR 4.87; RCT: ROI -92%, BCR 0.08) were positive in NRSs, but negative in RCTs. Worksite health promotion programmes aimed at improving nutrition and/or increasing physical activity generate financial savings in terms of reduced absenteeism costs, medical costs or both according to NRSs, whereas they do not according to RCTs. Since these programmes are associated with additional types of benefits, conclusions about their overall profitability cannot be made. © 2011 The Authors. obesity reviews © 2011 International Association for the Study of Obesity.

  20. Diffuse intrinsic pontine glioma: is MRI surveillance improved by region of interest volumetry?

    Science.gov (United States)

    Riley, Garan T; Armitage, Paul A; Batty, Ruth; Griffiths, Paul D; Lee, Vicki; McMullan, John; Connolly, Daniel J A

    2015-02-01

    Paediatric diffuse intrinsic pontine glioma (DIPG) is noteworthy for its fibrillary infiltration through neuroparenchyma and its resultant irregular shape. Conventional volumetry methods aim to approximate such irregular tumours to a regular ellipse, which could be less accurate when assessing treatment response on surveillance MRI. Region-of-interest (ROI) volumetry methods, using manually traced tumour profiles on contiguous imaging slices and subsequent computer-aided calculations, may prove more reliable. To evaluate whether the reliability of MRI surveillance of DIPGs can be improved by the use of ROI-based volumetry. We investigated the use of ROI- and ellipsoid-based methods of volumetry for paediatric DIPGs in a retrospective review of 22 MRI examinations. We assessed the inter- and intraobserver variability of the two methods when performed by four observers. ROI- and ellipsoid-based methods strongly correlated for all four observers. The ROI-based volumes showed slightly better agreement both between and within observers than the ellipsoid-based volumes (inter-[intra-]observer agreement 89.8% [92.3%] and 83.1% [88.2%], respectively). Bland-Altman plots show tighter limits of agreement for the ROI-based method. Both methods are reproducible and transferrable among observers. ROI-based volumetry appears to perform better with greater intra- and interobserver agreement for complex-shaped DIPG.

  1. Diffuse intrinsic pontine glioma: is MRI surveillance improved by region of interest volumetry?

    International Nuclear Information System (INIS)

    Riley, Garan T.; Armitage, Paul A.; Griffiths, Paul D.; Batty, Ruth; Connolly, Daniel J.A.; Lee, Vicki; McMullan, John

    2015-01-01

    Paediatric diffuse intrinsic pontine glioma (DIPG) is noteworthy for its fibrillary infiltration through neuroparenchyma and its resultant irregular shape. Conventional volumetry methods aim to approximate such irregular tumours to a regular ellipse, which could be less accurate when assessing treatment response on surveillance MRI. Region-of-interest (ROI) volumetry methods, using manually traced tumour profiles on contiguous imaging slices and subsequent computer-aided calculations, may prove more reliable. To evaluate whether the reliability of MRI surveillance of DIPGs can be improved by the use of ROI-based volumetry. We investigated the use of ROI- and ellipsoid-based methods of volumetry for paediatric DIPGs in a retrospective review of 22 MRI examinations. We assessed the inter- and intraobserver variability of the two methods when performed by four observers. ROI- and ellipsoid-based methods strongly correlated for all four observers. The ROI-based volumes showed slightly better agreement both between and within observers than the ellipsoid-based volumes (inter-[intra-]observer agreement 89.8% [92.3%] and 83.1% [88.2%], respectively). Bland-Altman plots show tighter limits of agreement for the ROI-based method. Both methods are reproducible and transferrable among observers. ROI-based volumetry appears to perform better with greater intra- and interobserver agreement for complex-shaped DIPG. (orig.)

  2. Diffuse intrinsic pontine glioma: is MRI surveillance improved by region of interest volumetry?

    Energy Technology Data Exchange (ETDEWEB)

    Riley, Garan T. [University Hospital of North Tees, Department of General Radiology, North Tees and Hartlepool NHS Foundation Trust, Stockton-on-Tees, Cleveland (United Kingdom); Armitage, Paul A.; Griffiths, Paul D. [University of Sheffield, Academic Unit of Radiology, Sheffield (United Kingdom); Batty, Ruth; Connolly, Daniel J.A. [Sheffield Children' s NHS Foundation Trust, Department of Radiology, Sheffield (United Kingdom); Lee, Vicki [Sheffield Children' s NHS Foundation Trust, Department of Oncology, Sheffield (United Kingdom); McMullan, John [Sheffield Children' s NHS Foundation Trust, Department of Neurosurgery, Sheffield (United Kingdom)

    2014-08-21

    Paediatric diffuse intrinsic pontine glioma (DIPG) is noteworthy for its fibrillary infiltration through neuroparenchyma and its resultant irregular shape. Conventional volumetry methods aim to approximate such irregular tumours to a regular ellipse, which could be less accurate when assessing treatment response on surveillance MRI. Region-of-interest (ROI) volumetry methods, using manually traced tumour profiles on contiguous imaging slices and subsequent computer-aided calculations, may prove more reliable. To evaluate whether the reliability of MRI surveillance of DIPGs can be improved by the use of ROI-based volumetry. We investigated the use of ROI- and ellipsoid-based methods of volumetry for paediatric DIPGs in a retrospective review of 22 MRI examinations. We assessed the inter- and intraobserver variability of the two methods when performed by four observers. ROI- and ellipsoid-based methods strongly correlated for all four observers. The ROI-based volumes showed slightly better agreement both between and within observers than the ellipsoid-based volumes (inter-[intra-]observer agreement 89.8% [92.3%] and 83.1% [88.2%], respectively). Bland-Altman plots show tighter limits of agreement for the ROI-based method. Both methods are reproducible and transferrable among observers. ROI-based volumetry appears to perform better with greater intra- and interobserver agreement for complex-shaped DIPG. (orig.)

  3. Dynamic magnetic resonance imaging of cervical lymph nodes in patients with oral cancer. Utility of the small region of interest method in evaluating the architecture of cervical lymph nodes

    International Nuclear Information System (INIS)

    Oomori, Miwako; Fukunari, Fumiko; Kagawa, Toyohiro; Okamura, Kazuhiko; Yuasa, Kenji

    2008-01-01

    Our purpose was to evaluate the utility of the small region of interest (ROI) method to detect the architecture of cervical lymph nodes and the specificity of time-intensity curves for tissue present in cervical lymph nodes. Specimens were taken from 17 lymph nodes of eight patients (ten sides of the neck) with oral squamous cell carcinoma who underwent dynamic contrast-enhanced magnetic resonance imaging (MRI) and neck dissection between 2005 and 2007 at our hospital. Two methods of constructing time-intensity curves were compared: the conventional method that uses relatively large ROIs, and a new method that uses small ROIs. Curves made with the small ROI method were then compared to histopathological findings for dissected lymph nodes. The small ROI method allowed differences in signal intensity to be discerned at the tissue level, which was not possible with the conventional large ROI method. Curves for normal lymphoid tissue tended to be type I, those for tumor cells tended to be type II, and those for keratinization/necrosis tended to be types III and IV, indicating that time-intensity curves can be specific to tissue type within lymph nodes. The small ROI method was useful for evaluation of the architecture of cervical lymph nodes. (author)

  4. Influence of region of interest size and ultrasound lesion size on the performance of 2D shear wave elastography (SWE) in solid breast masses.

    Science.gov (United States)

    Skerl, K; Vinnicombe, S; Giannotti, E; Thomson, K; Evans, A

    2015-12-01

    To evaluate the influence of the region of interest (ROI) size and lesion diameter on the diagnostic performance of 2D shear wave elastography (SWE) of solid breast lesions. A study group of 206 consecutive patients (age range 21-92 years) with 210 solid breast lesions (70 benign, 140 malignant) who underwent core biopsy or surgical excision was evaluated. Lesions were divided into small (diameter <15 mm, n=112) and large lesions (diameter ≥15 mm, n=98). An ROI with a diameter of 1, 2, and 3 mm was positioned over the stiffest part of the lesion. The maximum elasticity (Emax), mean elasticity (Emean) and standard deviation (SD) for each ROI size were compared to the pathological outcome. Statistical analysis was undertaken using the chi-square test and receiver operating characteristic (ROC) analysis. The ROI size used has a significant impact on the performance of Emean and SD but not on Emax. Youden's indices show a correlation with the ROI size and lesion size: generally, the benign/malignant threshold is lower with increasing ROI size but higher with increasing lesion size. No single SWE parameter has superior performance. Lesion size and ROI size influence diagnostic performance. Copyright © 2015. Published by Elsevier Ltd.

  5. SU-G-BRC-01: A Data-Driven Pre-Optimization Method for Prediction of Achievability of Clinical Objectives in IMRT

    Energy Technology Data Exchange (ETDEWEB)

    Ranganathan, V; Kumar, P [Philips India Limited, Bangalore, Karnataka (India); Bzdusek, K [Philips, Fitchburg, WI (United States); Das, J Maria [Sanjay Gandhi PG Inst Med Scienes, Lucknow (India)

    2016-06-15

    Purpose: We propose a novel data-driven method to predict the achievability of clinical objectives upfront before invoking the IMRT optimization. Methods: A new metric called “Geometric Complexity (GC)” is used to estimate the achievability of clinical objectives. Here, GC is the measure of the number of “unmodulated” beamlets or rays that intersect the Region-of-interest (ROI) and the target volume. We first compute the geometric complexity ratio (GCratio) between the GC of a ROI (say, parotid) in a reference plan and the GC of the same ROI in a given plan. The GCratio of a ROI indicates the relative geometric complexity of the ROI as compared to the same ROI in the reference plan. Hence GCratio can be used to predict if a defined clinical objective associated with the ROI can be met by the optimizer for a given case. Basically a higher GCratio indicates a lesser likelihood for the optimizer to achieve the clinical objective defined for a given ROI. Similarly, a lower GCratio indicates a higher likelihood for the optimizer to achieve the clinical objective defined for the given ROI. We have evaluated the proposed method on four Head and Neck cases using Pinnacle3 (version 9.10.0) Treatment Planning System (TPS). Results: Out of the total of 28 clinical objectives from four head and neck cases included in the study, 25 were in agreement with the prediction, which implies an agreement of about 85% between predicted and obtained results. The Pearson correlation test shows a positive correlation between predicted and obtained results (Correlation = 0.82, r2 = 0.64, p < 0.005). Conclusion: The study demonstrates the feasibility of the proposed method in head and neck cases for predicting the achievability of clinical objectives with reasonable accuracy.

  6. Region-of-interest analyses of one-dimensional biomechanical trajectories: bridging 0D and 1D theory, augmenting statistical power

    Directory of Open Access Journals (Sweden)

    Todd C. Pataky

    2016-11-01

    Full Text Available One-dimensional (1D kinematic, force, and EMG trajectories are often analyzed using zero-dimensional (0D metrics like local extrema. Recently whole-trajectory 1D methods have emerged in the literature as alternatives. Since 0D and 1D methods can yield qualitatively different results, the two approaches may appear to be theoretically distinct. The purposes of this paper were (a to clarify that 0D and 1D approaches are actually just special cases of a more general region-of-interest (ROI analysis framework, and (b to demonstrate how ROIs can augment statistical power. We first simulated millions of smooth, random 1D datasets to validate theoretical predictions of the 0D, 1D and ROI approaches and to emphasize how ROIs provide a continuous bridge between 0D and 1D results. We then analyzed a variety of public datasets to demonstrate potential effects of ROIs on biomechanical conclusions. Results showed, first, that a priori ROI particulars can qualitatively affect the biomechanical conclusions that emerge from analyses and, second, that ROIs derived from exploratory/pilot analyses can detect smaller biomechanical effects than are detectable using full 1D methods. We recommend regarding ROIs, like data filtering particulars and Type I error rate, as parameters which can affect hypothesis testing results, and thus as sensitivity analysis tools to ensure arbitrary decisions do not influence scientific interpretations. Last, we describe open-source Python and MATLAB implementations of 1D ROI analysis for arbitrary experimental designs ranging from one-sample t tests to MANOVA.

  7. Assessment of cerebral perfusion with single-photon emission tomography in normal subjects and in patients with Alzheimer's disease: effects of region of interest selection

    Energy Technology Data Exchange (ETDEWEB)

    Claus, J J [Dept. of Neurology, Univ. Hospital, Rotterdam (Netherlands) Dept. of Epidemiology and Biostatistics, Erasmus Univ. Medical School, Rotterdam (Netherlands); Harskamp, F van [Dept. of Neurology, Univ. Hospital, Rotterdam (Netherlands); Breteler, M M.B. [Dept. of Epidemiology and Biostatistics, Erasmus Univ. Medical School, Rotterdam (Netherlands); Krenning, E P [Dept. of Nuclear Medicine, Univ. Hospital, Rotterdam (Netherlands); Cammen, T.J.M. van der (Dept. of Geriatric Medicine, Univ. Hospital, Rotterdam (Netherlands)); Hofman, A [Dept. of Epidemiology and Biostatistics, Erasmus Univ. Medical School, Rotterdam (Netherlands); Hasan, D [Dept. of Neurology, Univ. Hospital, Rotterdam (Netherlands)

    1994-10-01

    We compared three different ROIs in a SPET study with 60 controls and in 48 patients with probable Alzheimer's disease diagnosed according to the NINCDS-ADRDA criteria. Regional cerebral blood flow (rCBF) was assessed with SPET using technetium-99m d,l-hexamethylpropylene amine oxime ([sup 99m]Tc-HMPAO), normalized to the mean activity in a cerebellar reference slice. The three different ROIs were: a multi-slice and a single-slice ROI with reference to the normal brain anatomy (using an anatomical atlas), and a rectangular (2x4 pixels) ROI in the frontal, temporal, temporoparietal and occipital cortices. No differences were observed for the means of rCBF values between the single-slice and multi-slice ROI's with reference to the normal anatomy, but some variability was present for individual comparisons. In contrast, significantly higher mean rCBF values were obtained with the single-slice rectangular ROIs in all four regions for both patients and controls and considerable variability was shown for individual subjects. After analysis with multivariate logistic regression and receiver operator characteristic curves, the ability of SPET to discriminate between controls and Alzheimer patients was similar in the three methods for mild and moderate Alzheimer patients (Global Deterioration Scale = GDS of 3 and 4). However, with increasing dementia severity (GDS>4) the rectangular ROIs showed lower ability to discriminate between groups compared to the single-slice and multi-slice anatomically defined ROIs. This study suggests that results of rCBF assessment with SPET using [sup 99m]Tc-HMPAO in patients with severe Alzheimer's disease are influenced by the shape and size of the ROI. (orig.)

  8. Fully automated quantification of regional cerebral blood flow with three-dimensional stereotaxic region of interest template. Validation using magnetic resonance imaging. Technical note

    Energy Technology Data Exchange (ETDEWEB)

    Takeuchi, Ryo; Katayama, Shigenori; Takeda, Naoya; Fujita, Katsuzo [Nishi-Kobe Medical Center (Japan); Yonekura, Yoshiharu [Fukui Medical Univ., Matsuoka (Japan); Konishi, Junji [Kyoto Univ. (Japan). Graduate School of Medicine

    2003-03-01

    The previously reported three-dimensional stereotaxic region of interest (ROI) template (3DSRT-t) for the analysis of anatomically standardized technetium-99m-L,L-ethyl cysteinate dimer ({sup 99m}Tc-ECD) single photon emission computed tomography (SPECT) images was modified for use in a fully automated regional cerebral blood flow (rCBF) quantification software, 3DSRT, incorporating an anatomical standardization engine transplanted from statistical parametric mapping 99 and ROIs for quantification based on 3DSRT-t. Three-dimensional T{sub 2}-weighted magnetic resonance images of 10 patients with localized infarcted areas were compared with the ROI contour of 3DSRT, and the positions of the central sulcus in the primary sensorimotor area were also estimated. All positions of the 20 lesions were in strict accordance with the ROI delineation of 3DSRT. The central sulcus was identified on at least one side of 210 paired ROIs and in the middle of 192 (91.4%) of these 210 paired ROIs among the 273 paired ROIs of the primary sensorimotor area. The central sulcus was recognized in the middle of more than 71.4% of the ROIs in which the central sulcus was identifiable in the respective 28 slices of the primary sensorimotor area. Fully automated accurate ROI delineation on anatomically standardized images is possible with 3DSRT, which enables objective quantification of rCBF and vascular reserve in only a few minutes using {sup 99m}Tc-ECD SPECT images obtained by the resting and vascular reserve (RVR) method. (author)

  9. SU-D-204-07: Comparison of AAPM TG150 Draft Image Receptor Tests with Vendor Automated QC Tests for Five Mobile DR Units

    Energy Technology Data Exchange (ETDEWEB)

    Li, G; Nishino, T [UT MD Anderson Cancer Center, Houston, TX (United States); Greene, T [Radiation Services, Inc., Dover, FL (United States); Willis, C [MD Anderson Cancer Center, Bellaire, TX (United States)

    2015-06-15

    Purpose: To determine the consistency of digital detector (DR) tests recommended by AAPM TG150 and tests provided by commercially available DirectView Total Quality Tool (TQT). Methods: The DR tests recommended by the TG150 Detector Subgroup[1] were performed on 4 new Carestream DRX-Revolution and one Carestream DRX1C retrofit of a GE AMX-4 that had been in service for three years. After detector calibration, flat-field images plus images of two bar patterns oriented parallel and perpendicular to the A-C axis, were acquired at conditions recommended by TG150. Raw images were harvested and then analyzed using a MATLAB software previously validated[2,3,4]. Data were analyzed using ROIs of two different dimensions: 1) 128 x 128 ROIs matching the detector electronics; and 2) 256 x 256 ROIs, each including 4 adjacent smaller ROIs. TG150 metrics from 128 x 128 ROIs were compared to TQT metrics, which are also obtained from 128 x 128 ROIs[5]. Results: The results show that both TG150 and TQT measurements were consistent among these detectors. Differences between TG150 and TQT values appear systematic. Compared with 128 x 128 ROIs, noise and SNR non-uniformity were lower with 256 x 256 ROIs, although signal non-uniformity was similar, indicating detectors were appropriately calibrated for gain and offset. MTF of the retrofit unit remained essentially the same between 2012 and 2015, but was inferior to the new units. The older generator focal spot is smaller (0.75mm vs. 1.2mm), and the SID for acquisition is 182cm as well, so focal spot dimensions cannot explain the difference. The difference in MTF may be secondary to differences in generator X-ray spectrum or by unannounced changes in detector architecture. Further investigation is needed. Conclusion: The study shows that both TG150 and TQT tests are consistent. The numerical value of some metrics are dependent on ROI size.

  10. Fully automated quantification of regional cerebral blood flow with three-dimensional stereotaxic region of interest template. Validation using magnetic resonance imaging. Technical note

    International Nuclear Information System (INIS)

    Takeuchi, Ryo; Katayama, Shigenori; Takeda, Naoya; Fujita, Katsuzo; Yonekura, Yoshiharu; Konishi, Junji

    2003-01-01

    The previously reported three-dimensional stereotaxic region of interest (ROI) template (3DSRT-t) for the analysis of anatomically standardized technetium-99m-L,L-ethyl cysteinate dimer ( 99m Tc-ECD) single photon emission computed tomography (SPECT) images was modified for use in a fully automated regional cerebral blood flow (rCBF) quantification software, 3DSRT, incorporating an anatomical standardization engine transplanted from statistical parametric mapping 99 and ROIs for quantification based on 3DSRT-t. Three-dimensional T 2 -weighted magnetic resonance images of 10 patients with localized infarcted areas were compared with the ROI contour of 3DSRT, and the positions of the central sulcus in the primary sensorimotor area were also estimated. All positions of the 20 lesions were in strict accordance with the ROI delineation of 3DSRT. The central sulcus was identified on at least one side of 210 paired ROIs and in the middle of 192 (91.4%) of these 210 paired ROIs among the 273 paired ROIs of the primary sensorimotor area. The central sulcus was recognized in the middle of more than 71.4% of the ROIs in which the central sulcus was identifiable in the respective 28 slices of the primary sensorimotor area. Fully automated accurate ROI delineation on anatomically standardized images is possible with 3DSRT, which enables objective quantification of rCBF and vascular reserve in only a few minutes using 99m Tc-ECD SPECT images obtained by the resting and vascular reserve (RVR) method. (author)

  11. Cerebral perfusion computerized tomography: influence of reference vessels, regions of interest and interobserver variability

    International Nuclear Information System (INIS)

    Soustiel, Jean F.; Mor, Nadav; Zaaroor, Menashe; Goldsher, Dorith

    2006-01-01

    There are still no standardized guidelines for perfusion computerized tomography (PCT) analysis. A total of 61 PCT studies were analyzed using either the anterior cerebral artery (ACA) or the middle cerebral artery (MCA) as the arterial reference, and the superior sagittal sinus (SSS) or the vein of Galen (VG) as the venous reference. The sizes of regions of interest (ROI) were investigated comparing PCT results obtained using a hemispheric ROI combined with vascular pixel elimination with those obtained using five smaller ROIs located over the cortex and basal ganglia. In addition, interobserver variations were explored using a standardized protocol. MCA-based measurements of cerebral blood flow (CBF) and blood volume (CBV) were in accordance with those obtained with the ACA except in 16 patients with ischemic stroke, in whom CBF was overestimated by the ipsilateral MCA. Venous maximal intensity was significantly lower with the VG when compared with the SSS, resulting in overestimation of CBF and CBV. However, in 13.3% of patients the VG ROI yielded higher maximal intensities than the SSS ROI. There was no difference in PCT results between hemispheric ROI and averaged separate ROI when vascular pixel elimination was used. Finally, interobserver variations were as high as 11% for CBF and 12% for CBV. The present results suggest that pathological rather than anatomical considerations should dictate the choice of the arterial ROI. For venous ROI, although SSS seems to be adequate in most instances, deep cerebral veins may occasionally generate higher maximal intensities and should therefore be selected. Importantly, significant user-dependency should be taken into account. (orig.)

  12. Assessment of cerebral perfusion with single-photon emission tomography in normal subjects and in patients with Alzheimer's disease: effects of region of interest selection

    International Nuclear Information System (INIS)

    Claus, J.J.; Harskamp, F. van; Breteler, M.M.B.; Krenning, E.P.; Cammen, T.J.M. van der; Hofman, A.; Hasan, D.

    1994-01-01

    We compared three different ROIs in a SPET study with 60 controls and in 48 patients with probable Alzheimer's disease diagnosed according to the NINCDS-ADRDA criteria. Regional cerebral blood flow (rCBF) was assessed with SPET using technetium-99m d,l-hexamethylpropylene amine oxime ( 99m Tc-HMPAO), normalized to the mean activity in a cerebellar reference slice. The three different ROIs were: a multi-slice and a single-slice ROI with reference to the normal brain anatomy (using an anatomical atlas), and a rectangular (2x4 pixels) ROI in the frontal, temporal, temporoparietal and occipital cortices. No differences were observed for the means of rCBF values between the single-slice and multi-slice ROI's with reference to the normal anatomy, but some variability was present for individual comparisons. In contrast, significantly higher mean rCBF values were obtained with the single-slice rectangular ROIs in all four regions for both patients and controls and considerable variability was shown for individual subjects. After analysis with multivariate logistic regression and receiver operator characteristic curves, the ability of SPET to discriminate between controls and Alzheimer patients was similar in the three methods for mild and moderate Alzheimer patients (Global Deterioration Scale = GDS of 3 and 4). However, with increasing dementia severity (GDS>4) the rectangular ROIs showed lower ability to discriminate between groups compared to the single-slice and multi-slice anatomically defined ROIs. This study suggests that results of rCBF assessment with SPET using 99m Tc-HMPAO in patients with severe Alzheimer's disease are influenced by the shape and size of the ROI. (orig.)

  13. NOGA-guided analysis of regional myocardial perfusion abnormalities treated with intramyocardial injections of plasmid encoding vascular endothelial growth factor A-165 in patients with chronic myocardial ischemia: subanalysis of the EUROINJECT-ONE multicenter double-blind randomized study

    DEFF Research Database (Denmark)

    Gyongyosi, Mariann; Khorsand, Aliasghar; Zamini, Sholeh

    2005-01-01

    . The ROI was projected onto the baseline and follow-up rest and stress polar maps of the 99m-Tc-sestamibi/tetrofosmin single-photon emission computed tomography scintigraphy calculating the extent and severity (expressed as the mean normalized tracer uptake) of the ROI automatically. The extents of the ROI....... CONCLUSIONS: Projection of the NOGA-guided injection area onto the single-photon emission computed tomography polar maps permits quantitative evaluation of myocardial perfusion in regions treated with angiogenic substances. Injections of phVEGF A165 plasmid improve, but do not normalize, the stress...

  14. SU-F-J-183: Interior Region-Of-Interest Tomography by Using Inverse Geometry System

    Energy Technology Data Exchange (ETDEWEB)

    Kim, K; Kim, D; Kang, S; Kim, T; Shin, D; Cho, M; Noh, Y; Suh, T [Department of Biomedical Engineering and Research Institute of Biomedical Engineering, College of Medicine, The Catholic University of Korea, Seoul (Korea, Republic of)

    2016-06-15

    Purpose: The inverse geometry computed tomography (IGCT) composed of multiple source and small size detector has several merits such as reduction of scatter effect and large volumetric imaging within one rotation without cone-beam artifact, compared to conventional cone-beam computed tomography (CBCT). By using this multi-source characteristics, we intend to present a selective and multiple interior region-of-interest (ROI) imaging method by using a designed source on-off sequence of IGCT. Methods: All of the IGCT sources are operated one by one sequentially, and each projection in the shape of narrow cone-beam covers its own partial volume of full field of view (FOV) determined from system geometry. Thus, through controlling multi source operation, limited irradiation within ROI is possible and selective radon space data for ROI imaging can be acquired without additional X-ray filtration. With this feature, we designed a source on-off sequence for multi ROI-IGCT imaging, and projections of ROI-IGCT were generated by using the on-off sequence. Multi ROI-IGCT images were reconstructed by using filtered back-projection algorithm. All these imaging process of our study has been performed by utilizing digital phantom and patient CT data. ROI-IGCT images of the phantom were compared to CBCT image and the phantom data for the image quality evaluation. Results: Image quality of ROI-IGCT was comparable to that of CBCT. However, the distal axial-plane from the FOV center, large cone-angle region, ROI-IGCT showed uniform image quality without significant cone-beam artifact contrary to CBCT. Conclusion: ROI-IGCT showed comparable image quality and has the capability to provide multi ROI image within a rotation. Projection of ROI-IGCT is performed by selective irradiation, hence unnecessary imaging dose to non-interest region can be reduced. In this regard, it seems to be useful for diagnostic or image guidance purpose in radiotherapy such as low dose target localization and

  15. SU-F-J-183: Interior Region-Of-Interest Tomography by Using Inverse Geometry System

    International Nuclear Information System (INIS)

    Kim, K; Kim, D; Kang, S; Kim, T; Shin, D; Cho, M; Noh, Y; Suh, T

    2016-01-01

    Purpose: The inverse geometry computed tomography (IGCT) composed of multiple source and small size detector has several merits such as reduction of scatter effect and large volumetric imaging within one rotation without cone-beam artifact, compared to conventional cone-beam computed tomography (CBCT). By using this multi-source characteristics, we intend to present a selective and multiple interior region-of-interest (ROI) imaging method by using a designed source on-off sequence of IGCT. Methods: All of the IGCT sources are operated one by one sequentially, and each projection in the shape of narrow cone-beam covers its own partial volume of full field of view (FOV) determined from system geometry. Thus, through controlling multi source operation, limited irradiation within ROI is possible and selective radon space data for ROI imaging can be acquired without additional X-ray filtration. With this feature, we designed a source on-off sequence for multi ROI-IGCT imaging, and projections of ROI-IGCT were generated by using the on-off sequence. Multi ROI-IGCT images were reconstructed by using filtered back-projection algorithm. All these imaging process of our study has been performed by utilizing digital phantom and patient CT data. ROI-IGCT images of the phantom were compared to CBCT image and the phantom data for the image quality evaluation. Results: Image quality of ROI-IGCT was comparable to that of CBCT. However, the distal axial-plane from the FOV center, large cone-angle region, ROI-IGCT showed uniform image quality without significant cone-beam artifact contrary to CBCT. Conclusion: ROI-IGCT showed comparable image quality and has the capability to provide multi ROI image within a rotation. Projection of ROI-IGCT is performed by selective irradiation, hence unnecessary imaging dose to non-interest region can be reduced. In this regard, it seems to be useful for diagnostic or image guidance purpose in radiotherapy such as low dose target localization and

  16. Quantitative Immunofluorescence Analysis of Nucleolus-Associated Chromatin.

    Science.gov (United States)

    Dillinger, Stefan; Németh, Attila

    2016-01-01

    The nuclear distribution of eu- and heterochromatin is nonrandom, heterogeneous, and dynamic, which is mirrored by specific spatiotemporal arrangements of histone posttranslational modifications (PTMs). Here we describe a semiautomated method for the analysis of histone PTM localization patterns within the mammalian nucleus using confocal laser scanning microscope images of fixed, immunofluorescence stained cells as data source. The ImageJ-based process includes the segmentation of the nucleus, furthermore measurements of total fluorescence intensities, the heterogeneity of the staining, and the frequency of the brightest pixels in the region of interest (ROI). In the presented image analysis pipeline, the perinucleolar chromatin is selected as primary ROI, and the nuclear periphery as secondary ROI.

  17. Research Article Special Issue

    African Journals Online (AJOL)

    pc

    2018-03-07

    Mar 7, 2018 ... Subsequently, this image enhanced and binarized again in order to ... images is a noninvasive method, commonly used for monitoring and analysis of ... of Interest (ROI) of the remote sensing images and furthermore to ...

  18. Establishment of frame image in dynamic function renal studies

    International Nuclear Information System (INIS)

    Guedes, Germano P.; Brunetto, Sergio Q.

    1996-01-01

    Statistical procedures applied to a set of images of renal function study are described to define a region of interest (ROI) on the kidneys's contours. The kidneys geometry is considered to adapt to the emitting area in every frames

  19. FLIM-FRET image analysis of tryptophan in prostate cancer cells

    Science.gov (United States)

    Periasamy, Ammasi; Alam, Shagufta R.; Svindrych, Zdenek; Wallrabe, Horst

    2017-07-01

    A region of interest (ROI) based quantitative FLIM-FRET image analysis is developed to quantitate the autofluorescence signals of the essential amino acid tryptophan as a biomarker to investigate the metabolism in prostate cancer cells.

  20. Cost/benefit analysis for selected waste minimization technologies at TA-55

    International Nuclear Information System (INIS)

    Boerigter, S.T.

    1996-01-01

    The TA-55 plutonium facility at LANL is one of the remaining plutonium-handling facilities in the United States with significant operational capability. In recent years a great deal of attention has been focused on the waste streams generated by this facility. Costs of properly treating these streams have risen significantly. This paper discusses the characterization of several proposed radioactive waste minimization technologies as a function of Return on Investment (ROI). In particular, the DOE Environmental Management program has identified a specific funding channel for such technology development activities, but this funding channel requires a restrictive definition of ROI. Here, a simple extension to the required ROI equation is used to capture the lifecycle ROI due to offsets in future capital charges resulting from present spending

  1. Gender Classification Based on Eye Movements: A Processing Effect During Passive Face Viewing.

    Science.gov (United States)

    Sammaknejad, Negar; Pouretemad, Hamidreza; Eslahchi, Changiz; Salahirad, Alireza; Alinejad, Ashkan

    2017-01-01

    Studies have revealed superior face recognition skills in females, partially due to their different eye movement strategies when encoding faces. In the current study, we utilized these slight but important differences and proposed a model that estimates the gender of the viewers and classifies them into two subgroups, males and females. An eye tracker recorded participant's eye movements while they viewed images of faces. Regions of interest (ROIs) were defined for each face. Results showed that the gender dissimilarity in eye movements was not due to differences in frequency of fixations in the ROI s per se. Instead, it was caused by dissimilarity in saccade paths between the ROIs. The difference enhanced when saccades were towards the eyes. Females showed significant increase in transitions from other ROI s to the eyes. Consequently, the extraction of temporal transient information of saccade paths through a transition probability matrix, similar to a first order Markov chain model, significantly improved the accuracy of the gender classification results.

  2. An Analysis of Return on Investment Options for the USMC Distance Learning Program

    National Research Council Canada - National Science Library

    Clark, Jamie

    2000-01-01

    A study was conducted to examine various aspects of Distance Learning (DL) applications currently under review by the Marine Corps, and determine whether these programs, if initiated, provide a positive Return on Investment (ROI...

  3. An SVM Based Approach for the Analysis Of Mammography Images

    Science.gov (United States)

    Gan, X.; Kapsokalivas, L.; Skaliotis, A.; Steinhöfel, K.; Tangaro, S.

    2007-09-01

    Mammography is among the most popular imaging techniques used in the diagnosis of breast cancer. Nevertheless distinguishing between healthy and ill images is hard even for an experienced radiologist, because a single image usually includes several regions of interest (ROIs). The hardness of this classification problem along with the substantial amount of data, gathered from patients' medical history, motivates the use of a machine learning approach as part of a CAD (Computer Aided Detection) tool, aiming to assist radiologists in the characterization of mammography images. Specifically, our approach involves: i) the ROI extraction, ii) the Feature Vector extraction, iii) the Support Vector Machine (SVM) classification of ROIs and iv) the characterization of the whole image. We evaluate the performance of our approach in terms of the SVM's training and testing error and in terms of ROI specificity—sensitivity. The results show a relation between the number of features used and the SVM's performance.

  4. An SVM Based Approach for the Analysis Of Mammography Images

    International Nuclear Information System (INIS)

    Gan, X.; Kapsokalivas, L.; Skaliotis, A.; Steinhoefel, K.; Tangaro, S.

    2007-01-01

    Mammography is among the most popular imaging techniques used in the diagnosis of breast cancer. Nevertheless distinguishing between healthy and ill images is hard even for an experienced radiologist, because a single image usually includes several regions of interest (ROIs). The hardness of this classification problem along with the substantial amount of data, gathered from patients' medical history, motivates the use of a machine learning approach as part of a CAD (Computer Aided Detection) tool, aiming to assist radiologists in the characterization of mammography images. Specifically, our approach involves: i) the ROI extraction, ii) the Feature Vector extraction, iii) the Support Vector Machine (SVM) classification of ROIs and iv) the characterization of the whole image. We evaluate the performance of our approach in terms of the SVM's training and testing error and in terms of ROI specificity - sensitivity. The results show a relation between the number of features used and the SVM's performance

  5. Tegevuskunstnikud üllatavad balliga / Eero Ijavoinen ; interv. Arnika Tegelmann

    Index Scriptorium Estoniae

    Ijavoinen, Eero, 1963-

    2000-01-01

    Intervjuu tegevuskunstifestivali "Aeg Ruum Liikumine" korraldaja Eero Ijavoineniga; festivalil osalevad Leonhard Lapin, Ilmar Kruusamäe, Kaarina Ormio, Roi Vaara, David Rotenberg, Jaanika Peerna, Gert Hatsukov, vene rühmitus The Blind

  6. Relations between the distribution of signal strength on dynamic MRI imaging and the effect of primary systemic chemotherapy on breast cancer

    International Nuclear Information System (INIS)

    Ohta, Koji; Endo, Naoki; Miyanaga, Tamon; Hosokawa, Osamu; Takeda, Takayuki; Kaizaki, Yasuharu

    2009-01-01

    The subjects were 24 patients in whom MRI was performed before and after primary system chemotherapy (PSC). We investigated the pattern of contrast enhancement with respect to treatment responses. We prepared the time-signal intensity in each region of interest (ROI) (small ROI), established by dividing the maximum cut surface of each tumor into 9, and then subdividing them, and examined the distribution of enhancement. We counted small ROIs showing early enhancement and late washout per lesion. Counts were plotted on the longitudinal axis, and the tumor reduction rate on the transverse axis based on data for all tumors. These were also evaluated with respect to subtypes. The complete response (CR) group showed early enhancement and late washout. In addition, the small ROI count was correlated with the tumor reduction rate only in the luminal group. In this group, treatment responses may have more strongly depended on the intra-tumoral vascular density and permeability, because anticancer agent sensitivity was low. (author)

  7. Economic Analysis of Production of Essential Oil using Steam ...

    African Journals Online (AJOL)

    acer

    Economic Analysis of Production of Essential Oil using. Steam Distillation ... The return on investment (ROI) was 125%, internal rate of return ... oils, over dependency on petrodollar and ... The steam may be obtained from external boiler or.

  8. Optimization of Region of Interest Drawing for Quantitative Analysis: Differentiation Between Benign and Malignant Breast Lesions on Contrast-Enhanced Sonography.

    Science.gov (United States)

    Nakata, Norio; Ohta, Tomoyuki; Nishioka, Makiko; Takeyama, Hiroshi; Toriumi, Yasuo; Kato, Kumiko; Nogi, Hiroko; Kamio, Makiko; Fukuda, Kunihiko

    2015-11-01

    This study was performed to evaluate the diagnostic utility of quantitative analysis of benign and malignant breast lesions using contrast-enhanced sonography. Contrast-enhanced sonography using the perflubutane-based contrast agent Sonazoid (Daiichi Sankyo, Tokyo, Japan) was performed in 94 pathologically proven palpable breast mass lesions, which could be depicted with B-mode sonography. Quantitative analyses using the time-intensity curve on contrast-enhanced sonography were performed in 5 region of interest (ROI) types (manually traced ROI and circular ROIs of 5, 10, 15, and 20 mm in diameter). The peak signal intensity, initial slope, time to peak, positive enhancement integral, and wash-out ratio were investigated in each ROI. There were significant differences between benign and malignant lesions in the time to peak (P benign and malignant lesions in the time to peak (P benign and malignant breast lesions. © 2015 by the American Institute of Ultrasound in Medicine.

  9. The Role of Diffusion-Weighted Magnetic Resonance Imaging in the ...

    African Journals Online (AJOL)

    2018-02-23

    Feb 23, 2018 ... Imaging in the Differential Diagnosis of Simple and Hydatid Cysts of the. Liver. Niger J Clin .... the ADC mapping, the size of the region of interest. (ROI) was chosen as .... from simple one. Financial support and sponsorship.

  10. Miniature Non-Intrusive Multi-Parameter Oronasal Respiratory Health Monitor, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — Redondo Optics Inc. (ROI), proposes to develop, demonstrate, and deliver to NASA an intrinsically safe, miniature, low power, autonomous, and self-calibrated,...

  11. Kiasma-mees Perttu Rastas jagas kogemusi / Karen Jagodin

    Index Scriptorium Estoniae

    Jagodin, Karen, 1982-

    2004-01-01

    Kiasma meediakonsultandi ja kuraatori Perttu Rastase ettekanne Tartus Lutsu teatrimajas muuseumi toimimisest kunstitegemise võimalikkuseni. Teksti illustreerimiseks näidati Roi Vaara, Erkki Kurenniemi, Eija Liisa Ahtila videosid. Juttu oli ka Teemu Mäki kassitapmist kujutavast videost

  12. The how of WOW: a guide to giving a speech that will positively blow 'em away

    National Research Council Canada - National Science Library

    Carlson, Tony

    2005-01-01

    ... Your Speech 249 Appendix D- How About the ROI? 265 Index 269 ... 11182$ CNTS 01-19-05 10:15:57 PS PAGE vi AcknowledgmentsAcknowledgments In the general chatter after a major speech given by a client ...

  13. Automated flaw detection scheme for cast austenitic stainless steel weld specimens using Hilbert-Huang transform of ultrasonic phased array data

    International Nuclear Information System (INIS)

    Khan, Tariq; Majumdar, Shantanu; Udpa, Lalita; Ramuhalli, Pradeep; Crawford, Susan; Diaz, Aaron; Anderson, Michael T.

    2012-01-01

    The objective of this work is to develop processing algorithms to detect and localize flaws using ultrasonic phased-array data. Data was collected on cast austenitic stainless stell (CASS) weld specimens onloan from the U.S. nuclear power industry' Pressurized Walter Reactor Owners Group (PWROG) traveling specimen set. Each specimen consists of a centrifugally cast stainless stell (CCSS) pipe section welded to a statically cst(SCSS) or wrought (WRSS) section. The paper presents a novel automated flaw detection and localization scheme using low frequency ultrasonic phased array inspection singals from the weld and heat affected zone of the based materials. The major steps of the overall scheme are preprocessing and region of interest (ROI) detection followed by the Hilbert-Huang transform (HHT) of A-scans in the detected ROIs. HHT offers time-frequency-energy distribution for each ROI. The Accumulation of energy in a particular frequency band is used as a classification feature for the particular ROI

  14. Historical return on investment and improved quality resulting from development and mining of a hospital laboratory relational database.

    Science.gov (United States)

    Brimhall, Bradley B; Hall, Timothy E; Walczak, Steven

    2006-01-01

    A hospital laboratory relational database, developed over eight years, has demonstrated significant cost savings and a substantial financial return on investment (ROI). In addition, the database has been used to measurably improve laboratory operations and the quality of patient care.

  15. An Algorithm to Detect the Retinal Region of Interest

    Science.gov (United States)

    Şehirli, E.; Turan, M. K.; Demiral, E.

    2017-11-01

    Retina is one of the important layers of the eyes, which includes sensitive cells to colour and light and nerve fibers. Retina can be displayed by using some medical devices such as fundus camera, ophthalmoscope. Hence, some lesions like microaneurysm, haemorrhage, exudate with many diseases of the eye can be detected by looking at the images taken by devices. In computer vision and biomedical areas, studies to detect lesions of the eyes automatically have been done for a long time. In order to make automated detections, the concept of ROI may be utilized. ROI which stands for region of interest generally serves the purpose of focusing on particular targets. The main concentration of this paper is the algorithm to automatically detect retinal region of interest belonging to different retinal images on a software application. The algorithm consists of three stages such as pre-processing stage, detecting ROI on processed images and overlapping between input image and obtained ROI of the image.

  16. Dissimilarity Representations in Lung Parenchyma Classification

    DEFF Research Database (Denmark)

    Sørensen, Lauge Emil Borch Laurs; de Bruijne, Marleen

    2009-01-01

    parenchyma classification. This allows for the classifiers to work on dissimilarities between objects, which might be a more natural way of representing lung parenchyma. In this context, dissimilarity is defined between CT regions of interest (ROI)s. ROIs are represented by their CT attenuation histogram...... and ROI dissimilarity is defined as a histogram dissimilarity measure between the attenuation histograms. In this setting, the full histograms are utilized according to the chosen histogram dissimilarity measure. We apply this idea to classification of different emphysema patterns as well as normal...... are built in this representation. This is also the general trend in lung parenchyma classification in computed tomography (CT) images, where the features often are measures on feature histograms. Instead, we propose to build normal density based classifiers in dissimilarity representations for lung...

  17. LOCUS MR: Localization of unaffected spins in MR tomography and MR spectroscopy

    International Nuclear Information System (INIS)

    Matthael, D.; Haase, A.

    1986-01-01

    Different pulse sequences have been proposed for localized in vivo MR spectroscopy. For localized MR tomography and MR spectroscopy, a method is proposed, dubbed LOCUS (LOCalization of Unaffected Spins) MR. The method uses the initial saturation of regions surrounding the region of interest (ROI) in the presence of gradients. This is followed by a conventional MR study of the unaffected ROI. In animals, human extremities, and phantoms, proton MR studies demonstrated that the method provides an optimal signal-to-noise ratio, an easily variable ROI, and ROI shim. The method can be combined with two- and three-dimensional imaging, and it allows localized measurement of MR parameters. The multinuclear capability is discussed

  18. MR-perfusion (MRP) and diffusion-weighted imaging (DWI) in prostate cancer: Quantitative and model-based gadobenate dimeglumine MRP parameters in detection of prostate cancer

    Energy Technology Data Exchange (ETDEWEB)

    Scherr, M.K., E-mail: michael.scherr@med.uni-muenchen.de [Institute of Clinical Radiology, University of Munich, Munich (Germany); Seitz, M. [Department of Urology, University of Munich, Munich (Germany); Mueller-Lisse, U.G. [Institute of Clinical Radiology, University of Munich, Munich (Germany); Ingrisch, M. [Josef Lissner Laboratory for Biomedical Imaging, Institute of Clinical Radiology, University of Munich, Munich (Germany); Reiser, M.F. [Institute of Clinical Radiology, University of Munich, Munich (Germany); Mueller-Lisse, U.L. [Department of Urology, University of Munich, Munich (Germany)

    2010-12-15

    Background: Various MR methods, including MR-spectroscopy (MRS), dynamic, contrast-enhanced MRI (DCE-MRI), and diffusion-weighted imaging (DWI) have been applied to improve test quality of standard MRI of the prostate. Purpose: To determine if quantitative, model-based MR-perfusion (MRP) with gadobenate dimeglumine (Gd-BOPTA) discriminates between prostate cancer, benign tissue, and transitional zone (TZ) tissue. Material and methods: 27 patients (age, 65 {+-} 4 years; PSA 11.0 {+-} 6.1 ng/ml) with clinical suspicion of prostate cancer underwent standard MRI, 3D MR-spectroscopy (MRS), and MRP with Gd-BOPTA. Based on results of combined MRI/MRS and subsequent guided prostate biopsy alone (17/27), biopsy and radical prostatectomy (9/27), or sufficient negative follow-up (7/27), maps of model-free, deconvolution-based mean transit time (dMTT) were generated for 29 benign regions (bROIs), 14 cancer regions (cROIs), and 18 regions of transitional zone (tzROIs). Applying a 2-compartment exchange model, quantitative perfusion analysis was performed including as parameters: plasma flow (PF), plasma volume (PV), plasma mean transit time (PMTT), extraction flow (EFL), extraction fraction (EFR), interstitial volume (IV) and interstitial mean transit time (IMTT). Two-sided T-tests (significance level p < 0.05) discriminated bROIs vs. cROIs and cROIs vs. tzROIs, respectively. Results: PMTT discriminated best between bROIs (11.8 {+-} 3.0 s) and cROIs (24.3 {+-} 9.6 s) (p < 0.0001), while PF, PV, PS, EFR, IV, IMTT also differed significantly (p 0.00002-0.0136). Discrimination between cROIs and tzROIs was insignificant for all parameters except PV (14.3 {+-} 2.5 ml vs. 17.6 {+-} 2.6 ml, p < 0.05). Conclusions: Besides MRI, MRS and DWI quantitative, 2-compartment MRP with Gd-BOPTA discriminates between prostate cancer and benign tissue with several parameters. However, distinction of prostate cancer and TZ does not appear to be reliable.

  19. More consistently altered connectivity patterns for cerebellum and medial temporal lobes than for amygdala and striatum in schizophrenia

    Directory of Open Access Journals (Sweden)

    Henning ePeters

    2016-02-01

    Full Text Available Background: Brain architecture can be divided into a cortico-thalamic system and modulatory ‘subcortical-cerebellar’ systems containing key structures such as striatum, medial temporal lobes (MTLs, amygdala, and cerebellum. Subcortical-cerebellar systems are known to be altered in schizophrenia. In particular, intrinsic functional brain connectivity (iFC between these systems has been consistently demonstrated in patients. While altered connectivity is known for each subcortical-cerebellar system separately, it is unknown whether subcortical-cerebellar systems’ connectivity patterns with the cortico-thalamic system are comparably altered across systems, i.e., if separate subcortical-cerebellar systems’ connectivity patterns are consistent across patients. Methods: To investigate this question, 18 patients with schizophrenia (3 unmedicated, 15 medicated with atypical antipsychotics and 18 healthy controls were assessed by resting-state functional magnetic resonance imaging (fMRI. Independent component analysis of fMRI data revealed cortical intrinsic brain networks (NWs with time courses representing proxies for cortico-thalamic system activity. Subcortical-cerebellar systems’ activity was represented by fMRI-based time courses of selected regions-of-interest (ROIs (i.e., striatum, MTL, amygdala, cerebellum. Correlation analysis among ROI- and NWs-time courses yielded individual connectivity matrices (i.e. connectivity between NW and ROIs (allROIs-NW, separateROI-NW, only NWs (NWs-NWs, and only ROIs (allROIs-allROIs as main outcome measures, which were classified by support-vector-machine-based leave-one-out cross-validation. Differences in classification accuracy were statistically evaluated for consistency across subjects and systems. Results: Correlation matrices based on allROIs-NWs yielded 91% classification accuracy, which was significantly superior to allROIs-allROIs and NWs-NWs (56% and 74%, respectively. Considering separate

  20. An interactive toolkit to extract phenological time series data from digital repeat photography

    Science.gov (United States)

    Seyednasrollah, B.; Milliman, T. E.; Hufkens, K.; Kosmala, M.; Richardson, A. D.

    2017-12-01

    Near-surface remote sensing and in situ photography are powerful tools to study how climate change and climate variability influence vegetation phenology and the associated seasonal rhythms of green-up and senescence. The rapidly-growing PhenoCam network has been using in situ digital repeat photography to study phenology in almost 500 locations around the world, with an emphasis on North America. However, extracting time series data from multiple years of half-hourly imagery - while each set of images may contain several regions of interest (ROI's), corresponding to different species or vegetation types - is not always straightforward. Large volumes of data require substantial processing time, and changes (either intentional or accidental) in camera field of view requires adjustment of ROI masks. Here, we introduce and present "DrawROI" as an interactive web-based application for imagery from PhenoCam. DrawROI can also be used offline, as a fully independent toolkit that significantly facilitates extraction of phenological data from any stack of digital repeat photography images. DrawROI provides a responsive environment for phenological scientists to interactively a) delineate ROIs, b) handle field of view (FOV) shifts, and c) extract and export time series data characterizing image color (i.e. red, green and blue channel digital numbers for the defined ROI). The application utilizes artificial intelligence and advanced machine learning techniques and gives user the opportunity to redraw new ROIs every time an FOV shift occurs. DrawROI also offers a quality control flag to indicate noisy data and images with low quality due to presence of foggy weather or snow conditions. The web-based application significantly accelerates the process of creating new ROIs and modifying pre-existing ROI in the PhenoCam database. The offline toolkit is presented as an open source R-package that can be used with similar datasets with time-lapse photography to obtain more data for

  1. A study on the characteristics of retrospective optimal interpolation using an Observing System Simulation Experiment

    Science.gov (United States)

    Kim, Shin-Woo; Noh, Nam-Kyu; Lim, Gyu-Ho

    2013-04-01

    This study presents the introduction of retrospective optimal interpolation (ROI) and its application with Weather Research and Forecasting model (WRF). Song et al. (2009) suggested ROI method which is an optimal interpolation (OI) that gradually assimilates observations over the analysis window for variance-minimum estimate of an atmospheric state at the initial time of the analysis window. The assimilation window of ROI algorithm is gradually increased, similar with that of the quasi-static variational assimilation (QSVA; Pires et al., 1996). Unlike QSVA method, however, ROI method assimilates the data at post analysis time using perturbation method (Verlaan and Heemink, 1997) without adjoint model. Song and Lim (2011) improved this method by incorporating eigen-decomposition and covariance inflation. The computational costs for ROI can be reduced due to the eigen-decomposition of background error covariance which can concentrate ROI analyses on the error variances of governing eigenmodes by transforming the control variables into eigenspace. A total energy norm is used for the normalization of each control variables. In this study, ROI method is applied to WRF model with Observing System Simulation Experiment (OSSE) to validate the algorithm and to investigate the capability. Horizontal wind, pressure, potential temperature, and water vapor mixing ratio are used for control variables and observations. Firstly, 1-profile assimilation experiment is performed. Subsequently, OSSE's are performed using the virtual observing system which consists of synop, ship, and sonde data. The difference between forecast errors with assimilation and without assimilation is obviously increased as time passed, which means the improvement of forecast error with the assimilation by ROI. The characteristics and strength/weakness of ROI method are also investigated by conducting the experiments with 3D-Var (3-dimensional variational) method and 4D-Var (4-dimensional variational) method

  2. TU-G-BRD-02: Automated Systematic Quality Assurance Program for Radiation Oncology Information System Upgrades

    International Nuclear Information System (INIS)

    Zhang, B; Yi, B; Eley, J; Mutaf, Y; Rahman, S; D’Souza, W

    2015-01-01

    Purpose: To: (1) describe an independent, automated, systematic software-based protocol for verifying clinical data accuracy/integrity for mitigation of data corruption/loss risks following radiation oncology information system (ROIS) upgrades; and (2) report on application of this approach in an academic/community practice environment. Methods: We propose a robust approach to perform quality assurance on the ROIS after an upgrade, targeting four data sources: (1) ROIS relational database; (2) ROIS DICOM interface; (3) ROIS treatment machine data configuration; and (4) ROIS-generated clinical reports. We investigated the database schema for differences between pre-/post-upgrade states. Paired DICOM data streams for the same object (such as RT-Plan/Treatment Record) were compared between pre-/post-upgrade states for data corruption. We examined machine configuration and related commissioning data files for changes and corruption. ROIS-generated treatment appointment and treatment parameter reports were compared to ensure patient encounter and treatment plan accuracy. This protocol was supplemented by an end-to-end clinical workflow test to verify essential ROI functionality and integrity of components interfaced during patient care chain of activities. We describe the implementation of this protocol during a Varian ARIA system upgrade at our clinic. Results: We verified 1,638 data tables with 2.4 billion data records. For 222 under-treatment patients, 605 DICOM RT plans and 13,480 DICOM treatment records retrieved from the ROIS DICOM interface were compared, with no differences in fractions, doses delivered, or treatment parameters. We identified 82 new data tables and 78 amended/deleted tables consistent with the upgrade. Reports for 5,073 patient encounters over a 2-week horizon were compared and were identical to those before the upgrade. Content in 12,237 xml machine files was compared, with no differences identified. Conclusion: An independent QA

  3. TU-G-BRD-02: Automated Systematic Quality Assurance Program for Radiation Oncology Information System Upgrades

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, B; Yi, B; Eley, J; Mutaf, Y; Rahman, S; D’Souza, W [University of Maryland School of Medicine, Baltimore, MD (United States)

    2015-06-15

    Purpose: To: (1) describe an independent, automated, systematic software-based protocol for verifying clinical data accuracy/integrity for mitigation of data corruption/loss risks following radiation oncology information system (ROIS) upgrades; and (2) report on application of this approach in an academic/community practice environment. Methods: We propose a robust approach to perform quality assurance on the ROIS after an upgrade, targeting four data sources: (1) ROIS relational database; (2) ROIS DICOM interface; (3) ROIS treatment machine data configuration; and (4) ROIS-generated clinical reports. We investigated the database schema for differences between pre-/post-upgrade states. Paired DICOM data streams for the same object (such as RT-Plan/Treatment Record) were compared between pre-/post-upgrade states for data corruption. We examined machine configuration and related commissioning data files for changes and corruption. ROIS-generated treatment appointment and treatment parameter reports were compared to ensure patient encounter and treatment plan accuracy. This protocol was supplemented by an end-to-end clinical workflow test to verify essential ROI functionality and integrity of components interfaced during patient care chain of activities. We describe the implementation of this protocol during a Varian ARIA system upgrade at our clinic. Results: We verified 1,638 data tables with 2.4 billion data records. For 222 under-treatment patients, 605 DICOM RT plans and 13,480 DICOM treatment records retrieved from the ROIS DICOM interface were compared, with no differences in fractions, doses delivered, or treatment parameters. We identified 82 new data tables and 78 amended/deleted tables consistent with the upgrade. Reports for 5,073 patient encounters over a 2-week horizon were compared and were identical to those before the upgrade. Content in 12,237 xml machine files was compared, with no differences identified. Conclusion: An independent QA

  4. The relationship between return on investment and quality of study methodology in workplace health promotion programs.

    Science.gov (United States)

    Baxter, Siyan; Sanderson, Kristy; Venn, Alison J; Blizzard, C Leigh; Palmer, Andrew J

    2014-01-01

    To determine the relationship between return on investment (ROI) and quality of study methodology in workplace health promotion programs. Data were obtained through a systematic literature search of National Health Service Economic Evaluation Database (NHS EED), Database of Abstracts of Reviews of Effects (DARE), Health Technology Database (HTA), Cost Effectiveness Analysis (CEA) Registry, EconLit, PubMed, Embase, Wiley, and Scopus. Included were articles written in English or German reporting cost(s) and benefit(s) and single or multicomponent health promotion programs on working adults. Return-to-work and workplace injury prevention studies were excluded. Methodological quality was graded using British Medical Journal Economic Evaluation Working Party checklist. Economic outcomes were presented as ROI. ROI was calculated as ROI = (benefits - costs of program)/costs of program. Results were weighted by study size and combined using meta-analysis techniques. Sensitivity analysis was performed using two additional methodological quality checklists. The influences of quality score and important study characteristics on ROI were explored. Fifty-one studies (61 intervention arms) published between 1984 and 2012 included 261,901 participants and 122,242 controls from nine industry types across 12 countries. Methodological quality scores were highly correlated between checklists (r = .84-.93). Methodological quality improved over time. Overall weighted ROI [mean ± standard deviation (confidence interval)] was 1.38 ± 1.97 (1.38-1.39), which indicated a 138% return on investment. When accounting for methodological quality, an inverse relationship to ROI was found. High-quality studies (n = 18) had a smaller mean ROI, 0.26 ± 1.74 (.23-.30), compared to moderate (n = 16) 0.90 ± 1.25 (.90-.91) and low-quality (n = 27) 2.32 ± 2.14 (2.30-2.33) studies. Randomized control trials (RCTs) (n = 12) exhibited negative ROI, -0.22 ± 2.41(-.27 to -.16). Financial returns become

  5. Marija Brajković, Master of Technical Sciences

    Directory of Open Access Journals (Sweden)

    Miodrag Roić

    2010-12-01

    Full Text Available Marija Brajković defended her master’s thesis Relationships of Croatian Registers at the Faculty of Geodesy, University of Zagreb, on November 18, 2010. Her tutor was Prof. Dr. Miodrag Roić. The Master’s thesis Committee for evaluation and defence consisted of Assist. Prof. Dr. Vlado Cetl, Prof. Dr. Zdravko Kapović and Prof. Dr. Miodrag Roić.

  6. Process improvement as an investment: Measuring its worth

    Science.gov (United States)

    Mcgarry, Frank; Jeletic, Kellyann

    1993-01-01

    This paper discusses return on investment (ROI) generated from software process improvement programs. It details the steps needed to compute ROI and compares these steps from the perspective of two process improvement approaches: the widely known Software Engineering Institute's capability maturity model and the approach employed by NASA's Software Engineering Laboratory (SEL). The paper then describes the specific investments made in the SEL over the past 18 years and discusses the improvements gained from this investment by the production organization in the SEL.

  7. Dynamic scanpaths: eye movement analysis methods

    Science.gov (United States)

    Blackmon, Theodore T.; Ho, Yeuk F.; Chernyak, Dimitri A.; Azzariti, Michela; Stark, Lawrence W.

    1999-05-01

    An eye movements sequence, or scanpath, during viewing of a stationary stimulus has been described as a set of fixations onto regions-of-interest, ROIs, and the saccades or transitions between them. Such scanpaths have high similarity for the same subject and stimulus both in the spatial loci of the ROIs and their sequence; scanpaths also take place during recollection of a previously viewed stimulus, suggesting that they play a similar role in visual memory and recall.

  8. SU-E-I-39: Combining Conventional Tomographic Imaging Strategy and Interior Tomography for Low Dose Dual-Energy CT (DECT)

    Energy Technology Data Exchange (ETDEWEB)

    Xu, Q [School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049 (China); Department of Radiation Oncology, Stanford University, Stanford, CA (United States); Xing, L [Department of Radiation Oncology, Stanford University, Stanford, CA (United States); Xiong, G; Elmore, K; Min, J [Dalio Institute of Cardiovascular Imaging, New York- Presbyterian Hospital and Weill Cornell Medical College, New York, NY (United States)

    2015-06-15

    Purpose: Dual-energy CT (DECT) affords quantitative information of tissue density and provides a new dimension for disease diagnosis and treatment planning. The technique, however, increases the imaging dose because of the doubled scans, and thus hinders its widespread clinical applications. The purpose of this work is to develop a novel hybrid DECT image acquisition and reconstruction strategy, in which one of the energies is dealt by interior tomography while the other one is obtained using conventional tomography approach. Methods: In the proposed hybrid imaging strategy, the projection data of one of the energies (e.g., high-energy) were acquired and processed in an interior scanning model, whereas the other energy in the conventional tomographic approach. It known that, if the ROI is piecewise constant or polynomial, the interior ROI can be reconstructed with TV or HOT minimization. Here we extend the TV based interior reconstruction method into dual-energy situation. The ROI images so obtained were overlaid in the context of conventional CT of the companion energy. A material based composition in ROI was used in the proposed reconstruction framework. Results: In the simulation experiment with a diagnostic DECT geometry and energies, we were able to derive the densities of soft-tissues and bones in the ROI with high fidelity. In the experimental CBCT study, both kV and MV data were collected using the on-board kV and MV imaging system. The MV data were truncated only across the ROI. Using the interior tomography reconstruction above, we were able to obtain the ROI images as that obtained using un-truncated MV data with known tissue densities. Conclusion: The proposed DECT imaging strategy provides an effective way to extract tissue density information in the ROI and in the context of anatomical images of CT imaging, with much reduced imaging dose.

  9. SU-E-J-52: Validation of 3D Structure Projection Onto 2D DRR in Commercial Treatment Planning Systems.

    Science.gov (United States)

    Zhang, L; Court, L; Balter, P; Dong, L

    2012-06-01

    The use of structure overlay on setup DRRs can aid the image alignment procedure for daily image-guided setup procedures. However, the accuracy of a 3D region-of-interest (ROI) projected on a 2D digitally reconstructed radiograph (DRR) has rarely been evaluated quantitatively. The goal of this study is to test the accuracy of two commercial treatment planning systems (TPS) in producing overlay structures on setup DRRs. We designed a novel method to identify landmarks which were on the boundary of the projected ROI on a DRR. The 3D ROIvolume is composed of a stack of 2D curves. We first mathematically project each 2D curve onto a beams-eye-view (BEV) plane. Next, we detectthe boundary points of the projected curves. Those boundary points serve aslandmarks. Finally, we project the binary mask of the 3D ROI volume using ray tracing method onto the BEV plane. This projected binary mask is used to exclude the false landmarks. Once those landmarks are detected, wecompute the distance between the landmarks and ROI outlines from the TPS. We applied our validation method to 13 ROIs from a lung patient and 4 simulated ROIs on 2 BEV DRRs for two different TPS (Eclipse and Pinnacle). Average distance between the landmarks and ROIoutlines was 0.5mm for both Eclipse and Pinnacle approaches, which is close to the pixel resolution of the DRR. The maximum distance andaverage maximum distance was 2mm and 1 mm, respectively, for both TPS.The maximum distance occurred at points where the ROI curve has a sharpchange between slices. The accuracy of Eclipse and Pinnacle ROI projection method seems to be acceptable to within 1mm althoughprojection error can be as large as 2mm when structure shape has a sharp variation from one slice to the next. © 2012 American Association of Physicists in Medicine.

  10. Brain-wide slowing of spontaneous alpha rhythms in mild cognitive impairment

    Directory of Open Access Journals (Sweden)

    Pilar eGarcés

    2013-12-01

    Full Text Available The neurophysiological changes associated with Alzheimer’s Disease (AD and Mild Cognitive Impairment (MCI include an increase in low frequency activity, as measured with electroencephalography or magnetoencephalography (MEG. A relevant property of spectral measures is the alpha peak, which corresponds to the dominant alpha rhythm. Here we studied the spatial distribution of MEG resting state alpha peak frequency and amplitude values in a sample of 27 MCI patients and 24 age-matched healthy controls. Power spectra were reconstructed in source space with linearly constrained minimum variance beamformer. Then, 88 Regions of Interest (ROIs were defined and an alpha peak per ROI and subject was identified. Statistical analyses were performed at every ROI, accounting for age, sex and educational level. Peak frequency was significantly decreased (p< 0.05 in MCIs in many posterior ROIs. The average peak frequency over all ROIs was 9.68±0.71 Hz for controls and 9.05±0.90 Hz for MCIs and the average normalized amplitude was (2.57±0.59•10-2 for controls and (2.70±0.49•10-2 for MCIs. Age and gender were also found to play a role in the alpha peak, since its frequency was higher in females than in males in posterior ROIs and correlated negatively with age in frontal ROIs. Furthermore, we examined the dependence of peak parameters with hippocampal volume, which is a commonly used marker of early structural AD-related damage. Peak frequency was positively correlated with hippocampal volume in many posterior ROIs. Overall, these findings indicate a pathological alpha slowing in MCI.

  11. Methodological approach to organizational performance improvement process

    OpenAIRE

    Buble, Marin; Dulčić, Želimir; Pavić, Ivan

    2017-01-01

    Organizational performance improvement is one of the fundamental enterprise tasks. This especially applies to the case when the term “performance improvement” implies efficiency improvement measured by indicators, such as ROI, ROE, ROA, or ROVA/ROI. Such tasks are very complex, requiring implementation by means of project management. In this paper, the authors propose a methodological approach to improving the organizational performance of a large enterprise.

  12. Final Environmental Planning Technical Report

    Science.gov (United States)

    1984-01-01

    game; mountain sheep were an important source of protein for groups living near mountainous areas. Frison (1978) points out that bison procurement...fish, amphibians, reptiles, turtles, crocodiles, dinosaurs , and mammals. Lance Very limited exposures in Fish, reptiles, turtles, croco- Low Formation...Goshen County. diles, dinosaurs , and mammals outside ROI. Few fossils collected in ROI. Fox Hills Limited exposures in Larimer and Mostly marine

  13. Comparison of contrast-to-noise ratios of transmission and dark-field signal in grating-based X-ray imaging for healthy murine lung tissue

    International Nuclear Information System (INIS)

    Schwab, Felix; Schleede, Simone; Hahn, Dieter

    2013-01-01

    Purpose: An experimental comparison of the contrast-to-noise ratio (CNR) between transmission and dark-field signals in grating-based X-ray imaging for ex-vivo murine lung tissue. Materials and Methods: Lungs from three healthy mice were imaged ex vivo using a laser-driven compact synchrotron X-ray source. Background noise of transmission and dark-field signal was quantified by measuring the standard deviation in a region of interest (ROI) placed in a homogeneous area outside the specimen. Image contrast was quantified by measuring the signal range in rectangular ROIs placed in central and peripheral lung parenchyma. The relative contrast gain (RCG) of dark-field over transmission images was calculated as CNRDF / CNRT. Results: In all images, there was a trend for contrast-to-noise ratios of dark-field images (CNRDF) to be higher than for transmission images (CNRT) for all ROIs (median 61 vs. 38, p = 0.10), but the difference was statistically significant only for peripheral ROIs (61 vs. 32, p = 0.03). Median RCG was >1 for all ROIs (1.84). RCG values were significantly smaller for central ROIs than for peripheral ROIs (1.34 vs. 2.43, p = 0.03). Conclusion: The contrast-to-noise ratio of dark-field images compares more favorably to the contrast-to-noise ratio of transmission images for peripheral lung regions as compared to central regions. For any specific specimen, a calculation of the RCG allows comparing which X-ray modality (dark-field or transmission imaging) produces better contrast-to-noise characteristics in a well-defined ROI. (orig.)

  14. Determinant Keputusan investasi dan Pengaruhnya Terhadap Return Saham Pada Perusahaan Manufaktur di Bursa Efek Indonesia

    OpenAIRE

    Silalahi, Alistraja Dison

    2012-01-01

    Determinant investment decision and its influence to return stock. This research aimed to know whether capital structure, ROI, net profit and firm size are influence to investment decision. This research is also to test and analize the influence of capital structure, ROI, net profit and investment decision toward return stock at manufacture companies in Indonesian Stock Exchange. The population in this research is manufacture companies which are registered in Indonesian stock exchange at ...

  15. Return on Investment in Public Relations: A critique of concepts used by practitioners from the perspectives of communication and management sciences

    OpenAIRE

    Watson, Tom; Zerfass, Ansgar

    2011-01-01

    Return on Investment (ROI) is a term commonly and non-specifically used by public relations practitioners when discussing the value to be created from communication activities. It mimics business language, particularly from business administration and financial management, but does not figure widely in academic discourse (Watson, 2005). \\ud The Institute for Public Relations [now CIPR] undertook a review of ROI practice in the United Kingdom (IPR/CDF 2004) and Likely, Rockland and Weiner (200...

  16. Multi-resolution analysis for region of interest extraction in thermographic nondestructive evaluation

    Science.gov (United States)

    Ortiz-Jaramillo, B.; Fandiño Toro, H. A.; Benitez-Restrepo, H. D.; Orjuela-Vargas, S. A.; Castellanos-Domínguez, G.; Philips, W.

    2012-03-01

    Infrared Non-Destructive Testing (INDT) is known as an effective and rapid method for nondestructive inspection. It can detect a broad range of near-surface structuring flaws in metallic and composite components. Those flaws are modeled as a smooth contour centered at peaks of stored thermal energy, termed Regions of Interest (ROI). Dedicated methodologies must detect the presence of those ROIs. In this paper, we present a methodology for ROI extraction in INDT tasks. The methodology deals with the difficulties due to the non-uniform heating. The non-uniform heating affects low spatial/frequencies and hinders the detection of relevant points in the image. In this paper, a methodology for ROI extraction in INDT using multi-resolution analysis is proposed, which is robust to ROI low contrast and non-uniform heating. The former methodology includes local correlation, Gaussian scale analysis and local edge detection. In this methodology local correlation between image and Gaussian window provides interest points related to ROIs. We use a Gaussian window because thermal behavior is well modeled by Gaussian smooth contours. Also, the Gaussian scale is used to analyze details in the image using multi-resolution analysis avoiding low contrast, non-uniform heating and selection of the Gaussian window size. Finally, local edge detection is used to provide a good estimation of the boundaries in the ROI. Thus, we provide a methodology for ROI extraction based on multi-resolution analysis that is better or equal compared with the other dedicate algorithms proposed in the state of art.

  17. Methodological approach to organizational performance improvement process

    Directory of Open Access Journals (Sweden)

    Marin Buble

    2001-01-01

    Full Text Available Organizational performance improvement is one of the fundamental enterprise tasks. This especially applies to the case when the term “performance improvement” implies efficiency improvement measured by indicators, such as ROI, ROE, ROA, or ROVA/ROI. Such tasks are very complex, requiring implementation by means of project management. In this paper, the authors propose a methodological approach to improving the organizational performance of a large enterprise.

  18. Improvement of Reliability of Diffusion Tensor Metrics in Thigh Skeletal Muscles.

    Science.gov (United States)

    Keller, Sarah; Chhabra, Avneesh; Ahmed, Shaheen; Kim, Anne C; Chia, Jonathan M; Yamamura, Jin; Wang, Zhiyue J

    2018-05-01

    Quantitative diffusion tensor imaging (DTI) of skeletal muscles is challenging due to the bias in DTI metrics, such as fractional anisotropy (FA) and mean diffusivity (MD), related to insufficient signal-to-noise ratio (SNR). This study compares the bias of DTI metrics in skeletal muscles via pixel-based and region-of-interest (ROI)-based analysis. DTI of the thigh muscles was conducted on a 3.0-T system in N = 11 volunteers using a fat-suppressed single-shot spin-echo echo planar imaging (SS SE-EPI) sequence with eight repetitions (number of signal averages (NSA) = 4 or 8 for each repeat). The SNR was calculated for different NSAs and estimated for the composite images combining all data (effective NSA = 48) as standard reference. The bias of MD and FA derived by pixel-based and ROI-based quantification were compared at different NSAs. An "intra-ROI diffusion direction dispersion angle (IRDDDA)" was calculated to assess the uniformity of diffusion within the ROI. Using our standard reference image with NSA = 48, the ROI-based and pixel-based measurements agreed for FA and MD. Larger disagreements were observed for the pixel-based quantification at NSA = 4. MD was less sensitive than FA to the noise level. The IRDDDA decreased with higher NSA. At NSA = 4, ROI-based FA showed a lower average bias (0.9% vs. 37.4%) and narrower 95% limits of agreement compared to the pixel-based method. The ROI-based estimation of FA is less prone to bias than the pixel-based estimations when SNR is low. The IRDDDA can be applied as a quantitative quality measure to assess reliability of ROI-based DTI metrics. Copyright © 2018 Elsevier B.V. All rights reserved.

  19. Functionalized metal organic frameworks for effective capture of radioactive organic iodides

    KAUST Repository

    Li, Baiyan

    2017-06-27

    Highly efficient capture of radioactive organic iodides (ROIs) from off-gas mixtures remains a substantial challenge for nuclear waste treatment. Current materials utilized for ROI sequestration suffer from low capacity, high cost (e.g. use of noble metals), and poor recyclability. Recently, we have developed a new strategy to tackle this challenge by functionalizing MOF materials with tertiary amines to create molecular traps for the effective capture and removal of ROIs (e.g. radioactive methyl iodide) from nuclear wastes. To further enhance the uptake capacity and performance of CH3I capture by ROI molecular traps, herein, we carry out a systematic study to investigate the effect of different amine molecules on ROI capture. The results demonstrate a record-high CH3I saturation uptake capacity of 80% for MIL-101-Cr-DMEDA at 150 °C, which is 5.3 times that of Ag0@MOR (15 wt%), a leading adsorbent material for capturing ROIs during nuclear fuel reprocessing. Furthermore, the CH3I decontamination factors (DFs) for MIL-101-Cr-DMEDA are as high as 5000 under simulated reprocessing conditions, largely exceeding that of facility regulatory requirements (DF = 3000). In addition, MIL-101-Cr-DMEDA can be recycled without loss of capacity, illustrating yet another advantage compared to known industrial adsorbents, which are typically of a

  20. The development of bronchiectasis on chest computed tomography in children with cystic fibrosis: can pre-stages be identified?

    Energy Technology Data Exchange (ETDEWEB)

    Tepper, Leonie A. [Sophia Children' s Hospital, Department of Pediatric Pulmonology, Erasmus MC, Rotterdam (Netherlands); Sophia Children' s Hospital, Department of Radiology, Erasmus MC, Rotterdam (Netherlands); Caudri, Daan [Sophia Children' s Hospital, Department of Pediatric Pulmonology, Erasmus MC, Rotterdam (Netherlands); Perez Rovira, Adria [Sophia Children' s Hospital, Department of Pediatric Pulmonology, Erasmus MC, Rotterdam (Netherlands); Erasmus MC, Biomedical Imaging Group Rotterdam, Departments of Radiology and Medical Informatics, Rotterdam (Netherlands); Tiddens, Harm A.W.M. [Sophia Children' s Hospital, Department of Pediatric Pulmonology, Erasmus MC, Rotterdam (Netherlands); Sophia Children' s Hospital, Department of Radiology, Erasmus MC, Rotterdam (Netherlands); Sophia Children' s Hospital, Department of Pediatric Pulmonology and Radiology, Erasmus Medical Center, Rotterdam (Netherlands); Bruijne, Marleen de [Erasmus MC, Biomedical Imaging Group Rotterdam, Departments of Radiology and Medical Informatics, Rotterdam (Netherlands); University of Copenhagen, Department of Computer Science, Copenhagen (Denmark)

    2016-12-15

    Bronchiectasis is an important component of cystic fibrosis (CF) lung disease but little is known about its development. We aimed to study the development of bronchiectasis and identify determinants for rapid progression of bronchiectasis on chest CT. Forty-three patients with CF with at least four consecutive biennial volumetric CTs were included. Areas with bronchiectasis on the most recent CT were marked as regions of interest (ROIs). These ROIs were generated on all preceding CTs using deformable image registration. Observers indicated whether: bronchiectasis, mucus plugging, airway wall thickening, atelectasis/consolidation or normal airways were present in the ROIs. We identified 362 ROIs on the most recent CT. In 187 (51.7 %) ROIs bronchiectasis was present on all preceding CTs, while 175 ROIs showed development of bronchiectasis. In 139/175 (79.4 %) no pre-stages of bronchiectasis were identified. In 36/175 (20.6 %) bronchiectatic airways the following pre-stages were identified: mucus plugging (17.7 %), airway wall thickening (1.7 %) or atelectasis/consolidation (1.1 %). Pancreatic insufficiency was more prevalent in the rapid progressors compared to the slow progressors (p = 0.05). Most bronchiectatic airways developed within 2 years without visible pre-stages, underlining the treacherous nature of CF lung disease. Mucus plugging was the most frequent pre-stage. (orig.)