Sample records for evaluation methods including

  1. A Critical Review of Methods to Evaluate the Impact of FDA Regulatory Actions

    PubMed Central

    Briesacher, Becky A.; Soumerai, Stephen B.; Zhang, Fang; Toh, Sengwee; Andrade, Susan E.; Wagner, Joann L.; Shoaibi, Azadeh; Gurwitz, Jerry H.

    2013-01-01

    Purpose To conduct a synthesis of the literature on methods to evaluate the impacts of FDA regulatory actions, and identify best practices for future evaluations. Methods We searched MEDLINE for manuscripts published between January 1948 and August 2011 that included terms related to FDA, regulatory actions, and empirical evaluation; the review additionally included FDA-identified literature. We used a modified Delphi method to identify preferred methodologies. We included studies with explicit methods to address threats to validity, and identified designs and analytic methods with strong internal validity that have been applied to other policy evaluations. Results We included 18 studies out of 243 abstracts and papers screened. Overall, analytic rigor in prior evaluations of FDA regulatory actions varied considerably; less than a quarter of studies (22%) included control groups. Only 56% assessed changes in the use of substitute products/services, and 11% examined patient health outcomes. Among studies meeting minimal criteria of rigor, 50% found no impact or weak/modest impacts of FDA actions and 33% detected unintended consequences. Among those studies finding significant intended effects of FDA actions, all cited the importance of intensive communication efforts. There are preferred methods with strong internal validity that have yet to be applied to evaluations of FDA regulatory actions. Conclusions Rigorous evaluations of the impact of FDA regulatory actions have been limited and infrequent. Several methods with strong internal validity are available to improve trustworthiness of future evaluations of FDA policies. PMID:23847020

  2. System and method for evaluating a wire conductor

    DOEpatents

    Panozzo, Edward; Parish, Harold

    2013-10-22

    A method of evaluating an electrically conductive wire segment having an insulated intermediate portion and non-insulated ends includes passing the insulated portion of the wire segment through an electrically conductive brush. According to the method, an electrical potential is established on the brush by a power source. The method also includes determining a value of electrical current that is conducted through the wire segment by the brush when the potential is established on the brush. The method additionally includes comparing the value of electrical current conducted through the wire segment with a predetermined current value to thereby evaluate the wire segment. A system for evaluating an electrically conductive wire segment is also disclosed.

  3. Multiple and mixed methods in formative evaluation: Is more better? Reflections from a South African study.

    PubMed

    Odendaal, Willem; Atkins, Salla; Lewin, Simon

    2016-12-15

    Formative programme evaluations assess intervention implementation processes, and are seen widely as a way of unlocking the 'black box' of any programme in order to explore and understand why a programme functions as it does. However, few critical assessments of the methods used in such evaluations are available, and there are especially few that reflect on how well the evaluation achieved its objectives. This paper describes a formative evaluation of a community-based lay health worker programme for TB and HIV/AIDS clients across three low-income communities in South Africa. It assesses each of the methods used in relation to the evaluation objectives, and offers suggestions on ways of optimising the use of multiple, mixed-methods within formative evaluations of complex health system interventions. The evaluation's qualitative methods comprised interviews, focus groups, observations and diary keeping. Quantitative methods included a time-and-motion study of the lay health workers' scope of practice and a client survey. The authors conceptualised and conducted the evaluation, and through iterative discussions, assessed the methods used and their results. Overall, the evaluation highlighted programme issues and insights beyond the reach of traditional single methods evaluations. The strengths of the multiple, mixed-methods in this evaluation included a detailed description and nuanced understanding of the programme and its implementation, and triangulation of the perspectives and experiences of clients, lay health workers, and programme managers. However, the use of multiple methods needs to be carefully planned and implemented as this approach can overstretch the logistic and analytic resources of an evaluation. For complex interventions, formative evaluation designs including multiple qualitative and quantitative methods hold distinct advantages over single method evaluations. However, their value is not in the number of methods used, but in how each method matches the evaluation questions and the scientific integrity with which the methods are selected and implemented.

  4. Graph modeling systems and methods

    DOEpatents

    Neergaard, Mike

    2015-10-13

    An apparatus and a method for vulnerability and reliability modeling are provided. The method generally includes constructing a graph model of a physical network using a computer, the graph model including a plurality of terminating vertices to represent nodes in the physical network, a plurality of edges to represent transmission paths in the physical network, and a non-terminating vertex to represent a non-nodal vulnerability along a transmission path in the physical network. The method additionally includes evaluating the vulnerability and reliability of the physical network using the constructed graph model, wherein the vulnerability and reliability evaluation includes a determination of whether each terminating and non-terminating vertex represents a critical point of failure. The method can be utilized to evaluate wide variety of networks, including power grid infrastructures, communication network topologies, and fluid distribution systems.

  5. Flexible methods for segmentation evaluation: results from CT-based luggage screening.

    PubMed

    Karimi, Seemeen; Jiang, Xiaoqian; Cosman, Pamela; Martz, Harry

    2014-01-01

    Imaging systems used in aviation security include segmentation algorithms in an automatic threat recognition pipeline. The segmentation algorithms evolve in response to emerging threats and changing performance requirements. Analysis of segmentation algorithms' behavior, including the nature of errors and feature recovery, facilitates their development. However, evaluation methods from the literature provide limited characterization of the segmentation algorithms. To develop segmentation evaluation methods that measure systematic errors such as oversegmentation and undersegmentation, outliers, and overall errors. The methods must measure feature recovery and allow us to prioritize segments. We developed two complementary evaluation methods using statistical techniques and information theory. We also created a semi-automatic method to define ground truth from 3D images. We applied our methods to evaluate five segmentation algorithms developed for CT luggage screening. We validated our methods with synthetic problems and an observer evaluation. Both methods selected the same best segmentation algorithm. Human evaluation confirmed the findings. The measurement of systematic errors and prioritization helped in understanding the behavior of each segmentation algorithm. Our evaluation methods allow us to measure and explain the accuracy of segmentation algorithms.

  6. A Survey of Model Evaluation Approaches with a Tutorial on Hierarchical Bayesian Methods

    ERIC Educational Resources Information Center

    Shiffrin, Richard M.; Lee, Michael D.; Kim, Woojae; Wagenmakers, Eric-Jan

    2008-01-01

    This article reviews current methods for evaluating models in the cognitive sciences, including theoretically based approaches, such as Bayes factors and minimum description length measures; simulation approaches, including model mimicry evaluations; and practical approaches, such as validation and generalization measures. This article argues…

  7. Flexible methods for segmentation evaluation: Results from CT-based luggage screening

    PubMed Central

    Karimi, Seemeen; Jiang, Xiaoqian; Cosman, Pamela; Martz, Harry

    2017-01-01

    BACKGROUND Imaging systems used in aviation security include segmentation algorithms in an automatic threat recognition pipeline. The segmentation algorithms evolve in response to emerging threats and changing performance requirements. Analysis of segmentation algorithms’ behavior, including the nature of errors and feature recovery, facilitates their development. However, evaluation methods from the literature provide limited characterization of the segmentation algorithms. OBJECTIVE To develop segmentation evaluation methods that measure systematic errors such as oversegmentation and undersegmentation, outliers, and overall errors. The methods must measure feature recovery and allow us to prioritize segments. METHODS We developed two complementary evaluation methods using statistical techniques and information theory. We also created a semi-automatic method to define ground truth from 3D images. We applied our methods to evaluate five segmentation algorithms developed for CT luggage screening. We validated our methods with synthetic problems and an observer evaluation. RESULTS Both methods selected the same best segmentation algorithm. Human evaluation confirmed the findings. The measurement of systematic errors and prioritization helped in understanding the behavior of each segmentation algorithm. CONCLUSIONS Our evaluation methods allow us to measure and explain the accuracy of segmentation algorithms. PMID:24699346

  8. Force measuring valve assemblies, systems including such valve assemblies and related methods

    DOEpatents

    DeWall, Kevin George [Pocatello, ID; Garcia, Humberto Enrique [Idaho Falls, ID; McKellar, Michael George [Idaho Falls, ID

    2012-04-17

    Methods of evaluating a fluid condition may include stroking a valve member and measuring a force acting on the valve member during the stroke. Methods of evaluating a fluid condition may include measuring a force acting on a valve member in the presence of fluid flow over a period of time and evaluating at least one of the frequency of changes in the measured force over the period of time and the magnitude of the changes in the measured force over the period of time to identify the presence of an anomaly in a fluid flow and, optionally, its estimated location. Methods of evaluating a valve condition may include directing a fluid flow through a valve while stroking a valve member, measuring a force acting on the valve member during the stroke, and comparing the measured force to a reference force. Valve assemblies and related systems are also disclosed.

  9. 42 CFR 431.424 - Evaluation requirements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... evaluations. Demonstration evaluations will include the following: (1) Quantitative research methods. (i... of appropriate evaluation strategies (including experimental and other quantitative and qualitative... demonstration. (ii) CMS will consider alternative evaluation designs when quantitative designs are technically...

  10. 42 CFR 431.424 - Evaluation requirements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... evaluations. Demonstration evaluations will include the following: (1) Quantitative research methods. (i... of appropriate evaluation strategies (including experimental and other quantitative and qualitative... demonstration. (ii) CMS will consider alternative evaluation designs when quantitative designs are technically...

  11. 42 CFR 431.424 - Evaluation requirements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... evaluations. Demonstration evaluations will include the following: (1) Quantitative research methods. (i... of appropriate evaluation strategies (including experimental and other quantitative and qualitative... demonstration. (ii) CMS will consider alternative evaluation designs when quantitative designs are technically...

  12. Some Methods for Evaluating Program Implementation.

    ERIC Educational Resources Information Center

    Hardy, Roy A.

    An approach to evaluating program implementation is described. This approach includes the development of a project description which includes a structure matrix, sampling from the structure matrix, and preparing an implementation evaluation plan. The implementation evaluation plan should include: (1) verification of implementation of planned…

  13. Methods for the evaluation of alternative disaster warning systems

    NASA Technical Reports Server (NTRS)

    Agnew, C. E.; Anderson, R. J., Jr.; Lanen, W. N.

    1977-01-01

    For each of the methods identified, a theoretical basis is provided and an illustrative example is described. The example includes sufficient realism and detail to enable an analyst to conduct an evaluation of other systems. The methods discussed in the study include equal capability cost analysis, consumers' surplus, and statistical decision theory.

  14. Evaluating co-creation of knowledge: from quality criteria and indicators to methods

    NASA Astrophysics Data System (ADS)

    Schuck-Zöller, Susanne; Cortekar, Jörg; Jacob, Daniela

    2017-11-01

    Basic research in the natural sciences rests on a long tradition of evaluation. However, since the San Francisco Declaration on Research Assessment (DORA) came out in 2012, there has been intense discussion in the natural sciences, above all amongst researchers and funding agencies in the different fields of applied research and scientific service. This discussion was intensified when climate services and other fields, used to make users participate in research and development activities (co-creation), demanded new evaluation methods appropriate to this new research mode. This paper starts by describing a comprehensive and interdisciplinary literature overview of indicators to evaluate co-creation of knowledge, including the different fields of integrated knowledge production. Then the authors harmonize the different elements of evaluation from literature in an evaluation cascade that scales down from very general evaluation dimensions to tangible assessment methods. They describe evaluation indicators already being documented and include a mixture of different assessment methods for two exemplary criteria. It is shown what can be deduced from already existing methodology for climate services and envisaged how climate services can further to develop their specific evaluation method.

  15. Evaluations of Structural Interventions for HIV Prevention: A Review of Approaches and Methods.

    PubMed

    Iskarpatyoti, Brittany S; Lebov, Jill; Hart, Lauren; Thomas, Jim; Mandal, Mahua

    2018-04-01

    Structural interventions alter the social, economic, legal, political, and built environments that underlie processes affecting population health. We conducted a systematic review of evaluations of structural interventions for HIV prevention in low- and middle-income countries (LMICs) to better understand methodological and other challenges and identify effective evaluation strategies. We included 27 peer-reviewed articles on interventions related to economic empowerment, education, and substance abuse in LMICs. Twenty-one evaluations included clearly articulated theories of change (TOCs); 14 of these assessed the TOC by measuring intermediary variables in the causal pathway between the intervention and HIV outcomes. Although structural interventions address complex interactions, no evaluation included methods designed to evaluate complex systems. To strengthen evaluations of structural interventions, we recommend clearly articulating a TOC and measuring intermediate variables between the predictor and outcome. We additionally recommend adapting study designs and analytic methods outside traditional epidemiology to better capture complex results, influences external to the intervention, and unintended consequences.

  16. Evaluation of dysphagia in early stroke patients by bedside, endoscopic, and electrophysiological methods.

    PubMed

    Umay, Ebru Karaca; Unlu, Ece; Saylam, Guleser Kılıc; Cakci, Aytul; Korkmaz, Hakan

    2013-09-01

    We aimed in this study to evaluate dysphagia in early stroke patients using a bedside screening test and flexible fiberoptic endoscopic evaluation of swallowing (FFEES) and electrophysiological evaluation (EE) methods and to compare the effectiveness of these methods. Twenty-four patients who were hospitalized in our clinic within the first 3 months after stroke were included in this study. Patients were evaluated using a bedside screening test [including bedside dysphagia score (BDS), neurological examination dysphagia score (NEDS), and total dysphagia score (TDS)] and FFEES and EE methods. Patients were divided into normal-swallowing and dysphagia groups according to the results of the evaluation methods. Patients with dysphagia as determined by any of these methods were compared to the patients with normal swallowing based on the results of the other two methods. Based on the results of our study, a high BDS was positively correlated with dysphagia identified by FFEES and EE methods. Moreover, the FFEES and EE methods were positively correlated. There was no significant correlation between NEDS and TDS levels and either EE or FFEES method. Bedside screening tests should be used mainly as an initial screening test; then FFEES and EE methods should be combined in patients who show risks. This diagnostic algorithm may provide a practical and fast solution for selected stroke patients.

  17. [Research progress on identification and quality evaluation of glues medicines].

    PubMed

    Li, Hui-Hu; Ren, Gang; Chen, Li-Min; Zhong, Guo-Yue

    2018-01-01

    Glues medicines is a special kind of traditional Chinese medicine.As the market demand is large, the raw materials are in short supply and lacks proper quality evaluation technology, which causes inconsistent quality of products on the market. Its authentic identification and evaluation stay a problem to be solved. In this paper, the research progress of the methods and techniques of the evaluation of the identification and quality of glues medicines were reviewed. The researches of medicinal glue type identification and quality evaluation mainly concentrated in four aspects of medicinal materials of physical and chemical properties, trace elements, organic chemicals and biological genetic methods and techniques. The methods of physicochemical properties include thermal analysis, gel electrophoresis, isoelectric focusing electrophoresis, infrared spectroscopy, gel exclusion chromatography, and circular dichroism. The methods including atomic absorption spectrometry, X-ray fluorescence spectrometry, plasma emission spectrometry and visible spectrophotometry were used for the study of the trace elements of glues medicines. The organic chemical composition was studied by methods of composition of amino acids, content detection, odor detection, lipid soluble component, organic acid detection. Methods based on the characteristics of biogenetics include DNA, polypeptide and amino acid sequence difference analysis. Overall, because of relative components similarity of the glues medicines (such as amino acids, proteins and peptides), its authenticity and quality evaluation index is difficult to judge objectively, all sorts of identification evaluation methods have different characteristics, but also their limitations. It indicates that further study should focus on identification of evaluation index and various technology integrated application combining with the characteristics of the production process. Copyright© by the Chinese Pharmaceutical Association.

  18. Uniform Sampling Table Method and its Applications II--Evaluating the Uniform Sampling by Experiment.

    PubMed

    Chen, Yibin; Chen, Jiaxi; Chen, Xuan; Wang, Min; Wang, Wei

    2015-01-01

    A new method of uniform sampling is evaluated in this paper. The items and indexes were adopted to evaluate the rationality of the uniform sampling. The evaluation items included convenience of operation, uniformity of sampling site distribution, and accuracy and precision of measured results. The evaluation indexes included operational complexity, occupation rate of sampling site in a row and column, relative accuracy of pill weight, and relative deviation of pill weight. They were obtained from three kinds of drugs with different shape and size by four kinds of sampling methods. Gray correlation analysis was adopted to make the comprehensive evaluation by comparing it with the standard method. The experimental results showed that the convenience of uniform sampling method was 1 (100%), odds ratio of occupation rate in a row and column was infinity, relative accuracy was 99.50-99.89%, reproducibility RSD was 0.45-0.89%, and weighted incidence degree exceeded the standard method. Hence, the uniform sampling method was easy to operate, and the selected samples were distributed uniformly. The experimental results demonstrated that the uniform sampling method has good accuracy and reproducibility, which can be put into use in drugs analysis.

  19. LNG safety assessment evaluation methods : task 3 letter report.

    DOT National Transportation Integrated Search

    2016-07-01

    Sandia National Laboratories evaluated published safety assessment methods across a variety of industries including Liquefied Natural Gas (LNG), hydrogen, land and marine transportation, as well as the US Department of Defense (DOD). All the methods ...

  20. Study on process evaluation model of students' learning in practical course

    NASA Astrophysics Data System (ADS)

    Huang, Jie; Liang, Pei; Shen, Wei-min; Ye, Youxiang

    2017-08-01

    In practical course teaching based on project object method, the traditional evaluation methods include class attendance, assignments and exams fails to give incentives to undergraduate students to learn innovatively and autonomously. In this paper, the element such as creative innovation, teamwork, document and reporting were put into process evaluation methods, and a process evaluation model was set up. Educational practice shows that the evaluation model makes process evaluation of students' learning more comprehensive, accurate, and fairly.

  1. Radiologic methods of evaluating generalized osteopenia

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Schneider, R.

    1984-10-01

    Noninvasive methods of evaluating generalized osteopenia include radiography, radionuclide studies, and various quantitative studies. These methods differ in availability, cost, accuracy, precision, radiation dose, and information supplied about bony change. A combination of methods is necessary to detect and follow the course and treatment of osteopenia.

  2. 34 CFR 364.38 - What methods of evaluation must the State plan include?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 34 Education 2 2010-07-01 2010-07-01 false What methods of evaluation must the State plan include? 364.38 Section 364.38 Education Regulations of the Offices of the Department of Education (Continued) OFFICE OF SPECIAL EDUCATION AND REHABILITATIVE SERVICES, DEPARTMENT OF EDUCATION STATE INDEPENDENT LIVING...

  3. 34 CFR 364.38 - What methods of evaluation must the State plan include?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 34 Education 2 2011-07-01 2010-07-01 true What methods of evaluation must the State plan include? 364.38 Section 364.38 Education Regulations of the Offices of the Department of Education (Continued) OFFICE OF SPECIAL EDUCATION AND REHABILITATIVE SERVICES, DEPARTMENT OF EDUCATION STATE INDEPENDENT LIVING...

  4. Are We There Yet? Evaluating Library Collections, Reference Services, Programs, and Personnel.

    ERIC Educational Resources Information Center

    Robbins-Carter, Jane; Zweizig, Douglas L.

    1985-01-01

    This second in a five-lesson tutorial on library evaluation focuses on the evaluation of library collections. Highlights include the seven-step evaluation process described in lesson one; quantitative methods (total size, unfilled requests, circulation, turnover rate); and qualitative methods (impressionistic, list-checking). One required and…

  5. Using an Evaluability Assessment To Select Methods for Evaluating State Technology Development Programs: The Case of the Georgia Research Alliance.

    ERIC Educational Resources Information Center

    Youtie, Jan; Bozeman, Barry; Shapira, Philip

    1999-01-01

    Describes an evaluability assessment of the Georgia Research Alliance (GRA), a technology development program. Presents the steps involved in conducting an evaluability assessment, including development of an understanding of the program and its stakeholders. Analyzes and compares different methods by which the GRA could be evaluated. (SLD)

  6. An evaluation method for nanoscale wrinkle

    NASA Astrophysics Data System (ADS)

    Liu, Y. P.; Wang, C. G.; Zhang, L. M.; Tan, H. F.

    2016-06-01

    In this paper, a spectrum-based wrinkling analysis method via two-dimensional Fourier transformation is proposed aiming to solve the difficulty of nanoscale wrinkle evaluation. It evaluates the wrinkle characteristics including wrinkling wavelength and direction simply using a single wrinkling image. Based on this method, the evaluation results of nanoscale wrinkle characteristics show agreement with the open experimental results within an error of 6%. It is also verified to be appropriate for the macro wrinkle evaluation without scale limitations. The spectrum-based wrinkling analysis is an effective method for nanoscale evaluation, which contributes to reveal the mechanism of nanoscale wrinkling.

  7. An Evaluation of the Efficiency of Different Hygienisation Methods

    NASA Astrophysics Data System (ADS)

    Zrubková, M.

    2017-10-01

    The aim of this study is to evaluate the efficiency of hygienisation by pasteurisation, temperature-phased anaerobic digestion and sludge liming. A summary of the legislation concerning sludge treatment, disposal and recycling is included. The hygienisation methods are compared not only in terms of hygienisation efficiency but a comparison of other criteria is also included.

  8. Evaluation of equipment and methods to map lost circulation zones in geothermal wells

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    McDonald, W.J.; Leon, P.A.; Pittard, G.

    A study and evaluation of methods to locate, characterize, and quantify lost circulation zones are described. Twenty-five methods of mapping and quantifying lost circulation zones were evaluated, including electrical, acoustical, mechanical, radioactive, and optical systems. Each tool studied is described. The structured, numerical evaluation plan, used as the basis for comparing the 25 tools, and the resulting ranking among the tools is presented.

  9. Gender counts: A systematic review of evaluations of gender-integrated health interventions in low- and middle-income countries.

    PubMed

    Schriver, Brittany; Mandal, Mahua; Muralidharan, Arundati; Nwosu, Anthony; Dayal, Radhika; Das, Madhumita; Fehringer, Jessica

    2017-11-01

    As a result of new global priorities, there is a growing need for high-quality evaluations of gender-integrated health programmes. This systematic review examined 99 peer-reviewed articles on evaluations of gender-integrated (accommodating and transformative) health programmes with regard to their theory of change (ToC), study design, gender integration in data collection, analysis, and gender measures used. Half of the evaluations explicitly described a ToC or conceptual framework (n = 50) that guided strategies for their interventions. Over half (61%) of the evaluations used quantitative methods exclusively; 11% used qualitative methods exclusively; and 28% used mixed methods. Qualitative methods were not commonly detailed. Evaluations of transformative interventions were less likely than those of accommodating interventions to employ randomised control trials. Two-thirds of the reviewed evaluations reported including at least one specific gender-related outcome (n = 18 accommodating, n = 44 transformative). To strengthen evaluations of gender-integrated programmes, we recommend use of ToCs, explicitly including gender in the ToC, use of gender-sensitive measures, mixed-method designs, in-depth descriptions of qualitative methods, and attention to gender-related factors in data collection logistics. We also recommend further research to develop valid and reliable gender measures that are globally relevant.

  10. Evaluation of methods of temperament scoring for beef cattle

    USDA-ARS?s Scientific Manuscript database

    Temperament can negatively affect various production traits, including live weight, ADG, DMI, conception rates and carcass weight. The objective of this research study was to evaluate temperament scoring methods in beef cattle. Crossbred (n = 228) calves were evaluated for temperament at weaning by ...

  11. Using Mixed Methods and Collaboration to Evaluate an Education and Public Outreach Program (Invited)

    NASA Astrophysics Data System (ADS)

    Shebby, S.; Shipp, S. S.

    2013-12-01

    Traditional indicators (such as the number of participants or Likert-type ratings of participant perceptions) are often used to provide stakeholders with basic information about program outputs and to justify funding decisions. However, use of qualitative methods can strengthen the reliability of these data and provide stakeholders with more meaningful information about program challenges, successes, and ultimate impacts (Stern, Stame, Mayne, Forss, David & Befani, 2012). In this session, presenters will discuss how they used a mixed methods evaluation to determine the impact of an education and public outreach (EPO) program. EPO efforts were intended to foster more effective, sustainable, and efficient utilization of science discoveries and learning experiences through three main goals 1) increase engagement and support by leveraging of resources, expertise, and best practices; 2) organize a portfolio of resources for accessibility, connectivity, and strategic growth; and 3) develop an infrastructure to support coordination. The evaluation team used a mixed methods design to conduct the evaluation. Presenters will first discuss five potential benefits of mixed methods designs: triangulation of findings, development, complementarity, initiation, and value diversity (Greene, Caracelli & Graham, 2005). They will next demonstrate how a 'mix' of methods, including artifact collection, surveys, interviews, focus groups, and vignettes, was included in the EPO project's evaluation design, providing specific examples of how alignment between the program theory and the evaluation plan was best achieved with a mixed methods approach. The presentation will also include an overview of different mixed methods approaches and information about important considerations when using a mixed methods design, such as selection of data collection methods and sources, and the timing and weighting of quantitative and qualitative methods (Creswell, 2003). Ultimately, this presentation will provide insight into how a mixed methods approach was used to provide stakeholders with important information about progress toward program goals. Creswell, J.W. (2003). Research design: Qualitative, quantitative, and mixed approaches. Thousand Oaks, CA: Sage. Greene, J. C., Caracelli, V. J., & Graham, W. D. (1989). Toward a conceptual framework for mixed-method evaluation designs. Educational Evaluation and Policy Analysis, 11(3), 255-274. Stern, E; Stame, N; Mayne, J; Forss, K; Davis, R & Befani, B (2012) Broadening the range of designs and methods for impact evaluation. Department for International Development.

  12. [An Introduction to Methods for Evaluating Health Care Technology].

    PubMed

    Lee, Ting-Ting

    2015-06-01

    The rapid and continual advance of healthcare technology makes ensuring that this technology is used effectively to achieve its original goals a critical issue. This paper presents three methods that may be applied by healthcare professionals in the evaluation of healthcare technology. These methods include: the perception/experiences of users, user work-pattern changes, and chart review or data mining. The first method includes two categories: using interviews to explore the user experience and using theory-based questionnaire surveys. The second method applies work sampling to observe the work pattern changes of users. The last method conducts chart reviews or data mining to analyze the designated variables. In conclusion, while evaluative feedback may be used to improve the design and development of healthcare technology applications, the informatics competency and informatics literacy of users may be further explored in future research.

  13. Mediating the Cognitive Walkthrough with Patient Groups to achieve Personalized Health in Chronic Disease Self-Management System Evaluation.

    PubMed

    Georgsson, Mattias; Kushniruk, Andre

    2016-01-01

    The cognitive walkthrough (CW) is a task-based, expert inspection usability evaluation method involving benefits such as cost effectiveness and efficiency. A drawback of the method is that it doesn't involve the user perspective from real users but instead is based on experts' predictions about the usability of the system and how users interact. In this paper, we propose a way of involving the user in an expert evaluation method by modifying the CW with patient groups as mediators. This along with other modifications include a dual domain session facilitator, specific patient groups and three different phases: 1) a preparation phase where suitable tasks are developed by a panel of experts and patients, validated through the content validity index 2) a patient user evaluation phase including an individual and collaborative process part 3) an analysis and coding phase where all data is digitalized and synthesized making use of Qualitative Data Analysis Software (QDAS) to determine usability deficiencies. We predict that this way of evaluating will utilize the benefits of the expert methods, also providing a way of including the patient user of these self-management systems. Results from this prospective study should provide evidence of the usefulness of this method modification.

  14. Evaluation of the Michigan Public School Academy Initiative: Final Report [and] Executive Summary.

    ERIC Educational Resources Information Center

    Horn, Jerry; Miron, Gary

    This is the final report of a one-year evaluation of the Michigan Public School Academy (PSA) initiative. The evaluation involved both formative and summative evaluations and used both qualitative and quantitative methods. The study was conducted between October 1997 and December 1998. Data-collection methods included a charter-school survey and a…

  15. ACORN's Accelerated Income Redistribution Project: A Program Evaluation

    ERIC Educational Resources Information Center

    Brooks, Fred; Russell, Daniel; Fisher, Robert

    2006-01-01

    Objective: This study evaluated the Association of Community Organizations for Reform Now's (ACORN) efforts to increase the uptake of families claiming the earned income tax credit through door-to-door canvassing and managing free tax preparation clinics in three pilot cities. Method: The mixed-method program evaluation included administrative…

  16. Optimizing Department of Defense Acquisition Development Test and Evaluation Scheduling

    DTIC Science & Technology

    2015-06-01

    CPM Critical Path Method DOD Department of Defense DT&E development test and evaluation EMD engineering and manufacturing development GAMS...these, including the Program Evaluation Review Technique (PERT), the Critical Path Method ( CPM ), and the resource- constrained project-scheduling...problem (RCPSP). These are of particular interest to this thesis as the current scheduling method uses elements of the PERT/ CPM , and the test

  17. A new multistage groundwater transport inverse method: presentation, evaluation, and implications

    USGS Publications Warehouse

    Anderman, Evan R.; Hill, Mary C.

    1999-01-01

    More computationally efficient methods of using concentration data are needed to estimate groundwater flow and transport parameters. This work introduces and evaluates a three‐stage nonlinear‐regression‐based iterative procedure in which trial advective‐front locations link decoupled flow and transport models. Method accuracy and efficiency are evaluated by comparing results to those obtained when flow‐ and transport‐model parameters are estimated simultaneously. The new method is evaluated as conclusively as possible by using a simple test case that includes distinct flow and transport parameters, but does not include any approximations that are problem dependent. The test case is analytical; the only flow parameter is a constant velocity, and the transport parameters are longitudinal and transverse dispersivity. Any difficulties detected using the new method in this ideal situation are likely to be exacerbated in practical problems. Monte‐Carlo analysis of observation error ensures that no specific error realization obscures the results. Results indicate that, while this, and probably other, multistage methods do not always produce optimal parameter estimates, the computational advantage may make them useful in some circumstances, perhaps as a precursor to using a simultaneous method.

  18. Verification and Validation of Monte Carlo N-Particle 6 for Computing Gamma Protection Factors

    DTIC Science & Technology

    2015-03-26

    methods for evaluating RPFs, which it used for the subsequent 30 years. These approaches included computational modeling, radioisotopes , and a high...1.2.1. Past Methods of Experimental Evaluation ........................................................ 2 1.2.2. Modeling Efforts...Other Considerations ......................................................................................... 14 2.4. Monte Carlo Methods

  19. MEASUREMENT OF VOLATILE ORGANIC COMPOUNDS BY THE US ENVIRONMENTAL PROTECTION AGENCY COMPENDIUM METHOD TO-17 - EVALUATION OF PERFORMANCE CRITERIA

    EPA Science Inventory

    An evaluation of performance criteria for US Environmental Protection Agency Compendium Method TO-17 for monitoring volatile organic compounds (VOCs) in air has been accomplished. The method is a solid adsorbent-based sampling and analytical procedure including performance crit...

  20. Evaluating the appropriateness of antimicrobial treatment in hospitalized patients: a comparison of three methods.

    PubMed

    Reisfeld, S; Assaly, M; Tannous, E; Amarney, K; Stein, M

    2018-06-01

    Approximately 20-50% of antimicrobial therapy in hospitalized patients is considered inappropriate, which may be associated with increased morbidity and mortality. The best method for evaluation of appropriateness is not well defined. To evaluate the rate of appropriate antimicrobial therapy in a secondary hospital using three different methods, and determine the rate of agreement between the different methods. A point prevalence study included all adult hospitalized patients receiving systemic antimicrobial therapy during 2016, screened on a single day. Clinical, laboratory and therapeutic data were collected from patient files, and appropriateness was rated with a qualitative evaluation by expert opinion. In addition, a quantitative evaluation was performed according to 11 quality indicators (QIs) rated for each patient. A strict definition of appropriateness was fulfilled if six essential QIs were met, and a lenient definition was fulfilled if at least five QIs were met. Agreement between methods was analysed using kappa statistic. Among 106 patients included, rates of appropriateness of antimicrobial therapy ranged from 20% to 75%, depending on the method of evaluation. Very low agreement was found between the strict definition and expert opinion (kappa=0.068), and medium agreement was found between the lenient definition and expert opinion (kappa=0.45). Rates of appropriateness of antimicrobial therapy varied between evaluation methods, with low to moderate agreement between the different methods. Copyright © 2017 The Healthcare Infection Society. Published by Elsevier Ltd. All rights reserved.

  1. Conducting an Efficient Proactive Risk Assessment Prior to CPOE Implementation in an Intensive Care Unit

    PubMed Central

    Hundt, Ann Schoofs; Adams, Jean A.; Schmid, J. Andrew; Musser, Linda M.; Walker, James M.; Wetterneck, Tosha B; Douglas, Stephen V.; Paris, Bonnie L.; Carayon, Pascale

    2012-01-01

    Purpose To develop, conduct, and evaluate a proactive risk assessment (PRA) of the design and implementation of CPOE in an ICU. Methods We developed a PRA method based on issues identified from documented experience with conventional PRA methods and the constraints of an organization about to implement CPOE in an intensive care unit. The PRA method consists of three phases: planning (three months), team (one five-hour meeting), and evaluation (short- and long-term). Results Sixteen unique relevant vulnerabilities were identified as a result of the PRA team’s efforts. Negative consequences resulting from the vulnerabilities included potential patient safety and quality of care issues, non-compliance with regulatory requirements, increases in cognitive burden on CPOE users, and/or worker inconvenience or distress. Actions taken to address the vulnerabilities included redesign of the technology, process (workflow) redesign, user training, and/or ongoing monitoring. Verbal and written evaluation by the team members indicated that the PRA method was useful and that participants were willing to participate in future PRAs. Long-term evaluation was accomplished by monitoring an ongoing “issues list” of CPOE problems identified by or reported to IT staff. Vulnerabilities identified by the team were either resolved prior to CPOE implementation (n = 7) or shortly thereafter (n = 9). No other issues were identified beside those identified by the team. Conclusions Generally positive results from the various evaluations including a long-term evaluation demonstrate the value of developing an efficient PRA method that meets organizational and contextual requirements and constraints. PMID:22608242

  2. Maintenance Procedure Display: Head Mounted Display (HMD) Evaluations

    NASA Technical Reports Server (NTRS)

    Whitmore, Milrian; Litaker, Harry L., Jr.; Solem, Jody A.; Holden, Kritina L.; Hoffman, Ronald R.

    2007-01-01

    A viewgraph presentation describing maintenance procedures for head mounted displays is shown. The topics include: 1) Study Goals; 2) Near Eye Displays (HMDs); 3) Design; 4) Phase I-Evaluation Methods; 5) Phase 1 Results; 6) Improved HMD Mounting; 7) Phase 2 -Evaluation Methods; 8) Phase 2 Preliminary Results; and 9) Next Steps.

  3. Development Of Methodologies Using PhabrOmeter For Fabric Drape Evaluation

    NASA Astrophysics Data System (ADS)

    Lin, Chengwei

    Evaluation of fabric drape is important for textile industry as it reveals the aesthetic and functionality of the cloth and apparel. Although many fabric drape measuring methods have been developed for several decades, they are falling behind the need for fast product development by the industry. To meet the requirement of industries, it is necessary to develop an effective and reliable method to evaluate fabric drape. The purpose of the present study is to determine if PhabrOmeter can be applied to fabric drape evaluation. PhabrOmeter is a fabric sensory performance evaluating instrument which is developed to provide fast and reliable quality testing results. This study was sought to determine the relationship between fabric drape and other fabric attributes. In addition, a series of conventional methods including AATCC standards, ASTM standards and ISO standards were used to characterize the fabric samples. All the data were compared and analyzed with linear correlation method. The results indicate that PhabrOmeter is reliable and effective instrument for fabric drape evaluation. Besides, some effects including fabric structure, testing directions were considered to examine their impact on fabric drape.

  4. Center for Nondestructive Evaluation - Center for Nondestructive Evaluation

    Science.gov Websites

    available for the full range of inspection methods, housed in a 52,000 sq. ft. facility with over $5M in - 1990): Development of NDE methods for application to DOE energy and weapons programs, including multi for enhanced frequency bandwidth and improved flaw reconstruction, and novel methods for poling

  5. Evaluating critical thinking in clinical practice.

    PubMed

    Oermann, M H

    1997-01-01

    Although much has been written about measurement instruments for evaluating critical thinking in nursing, this article describes clinical evaluation strategies for critical thinking. Five methods are discussed: 1) observation of students in practice; 2) questions for critical thinking, including Socratic questioning; 3) conferences; 4) problem-solving strategies; and 5) written assignments. These methods provide a means of evaluating students' critical thinking within the context of clinical practice.

  6. Evaluating the economic benefits of nonmotorized transportation : case studies and methods for the nonmotorized transportation pilot program communities.

    DOT National Transportation Integrated Search

    2015-03-01

    This report examines potential methods for evaluating the economic benefits from nonmotorized transportation investments. The variety of potential economic benefits of bicycle and pedestrian infrastructure and programming investments discussed includ...

  7. Malpractice and medical liability. European Guidelines on Methods of Ascertainment and Criteria of Evaluation.

    PubMed

    Ferrara, Santo Davide; Baccino, Eric; Bajanowski, Thomas; Boscolo-Berto, Rafael; Castellano, Maria; De Angel, Ricardo; Pauliukevičius, Alvydas; Ricci, Pietrantonio; Vanezis, Peter; Vieira, Duarte Nuno; Viel, Guido; Villanueva, Enrique

    2013-05-01

    The manuscript presents the European Guidelines on medico-legal Methods of Ascertainment and Criteria of Evaluation in cases of suspected subjective "Medical Responsibility and/or Liability" developed by an international working group under the patronage of the European Academy of Legal Medicine. It includes a step-by-step illustrated explanation of approved Flow Charts, articulated in 18 sequential steps and comprehensive of both Methods of Ascertainment and Evaluation Criteria.

  8. Economic evaluation in collaborative hospital drug evaluation reports.

    PubMed

    Ortega, Ana; Fraga, María Dolores; Marín-Gil, Roberto; Lopez-Briz, Eduardo; Puigventós, Francesc; Dranitsaris, George

    2015-09-01

    economic evaluation is a fundamental criterion when deciding a drug's place in therapy. The MADRE method (Method for Assistance in making Decisions and Writing Drug Evaluation Reports) is widely used for drug evaluation. This method was developed by the GENESIS group of the Spanish Society of Hospital Pharmacy (SEFH), including economic evaluation. We intend to improve the economic aspects of this method. As for the direction to take, we have to first analyze our previous experiences with the current methodology and propose necessary improvements. economic evaluation sections in collaboratively conducted drug evaluation reports (as the scientific society, SEFH) with the MADRE method were reviewed retrospectively. thirty-two reports were reviewed, 87.5% of them included an economic evaluation conducted by authors and 65.6% contained published economic evaluations. In 90.6% of the reports, a Budget impact analysis was conducted. The cost per life year gained or per Quality Adjusted Life Year gained was present in 14 reports. Twenty-three reports received public comments regarding the need to improve the economic aspect. Main difficulties: low quality evidence in the target population, no comparative studies with a relevant comparator, non-final outcomes evaluated, no quality of life data, no fixed drug price available, dosing uncertainty, and different prices for the same drug. proposed improvements: incorporating different forms of aid for non-drug costs, survival estimation and adapting published economic evaluations; establishing criteria for drug price selection, decision-making in conditions of uncertainty and poor quality evidence, dose calculation and cost-effectiveness thresholds depending on different situations. Copyright AULA MEDICA EDICIONES 2014. Published by AULA MEDICA. All rights reserved.

  9. Ordinal preference elicitation methods in health economics and health services research: using discrete choice experiments and ranking methods.

    PubMed

    Ali, Shehzad; Ronaldson, Sarah

    2012-09-01

    The predominant method of economic evaluation is cost-utility analysis, which uses cardinal preference elicitation methods, including the standard gamble and time trade-off. However, such approach is not suitable for understanding trade-offs between process attributes, non-health outcomes and health outcomes to evaluate current practices, develop new programmes and predict demand for services and products. Ordinal preference elicitation methods including discrete choice experiments and ranking methods are therefore commonly used in health economics and health service research. Cardinal methods have been criticized on the grounds of cognitive complexity, difficulty of administration, contamination by risk and preference attitudes, and potential violation of underlying assumptions. Ordinal methods have gained popularity because of reduced cognitive burden, lower degree of abstract reasoning, reduced measurement error, ease of administration and ability to use both health and non-health outcomes. The underlying assumptions of ordinal methods may be violated when respondents use cognitive shortcuts, or cannot comprehend the ordinal task or interpret attributes and levels, or use 'irrational' choice behaviour or refuse to trade-off certain attributes. CURRENT USE AND GROWING AREAS: Ordinal methods are commonly used to evaluate preference for attributes of health services, products, practices, interventions, policies and, more recently, to estimate utility weights. AREAS FOR ON-GOING RESEARCH: There is growing research on developing optimal designs, evaluating the rationalization process, using qualitative tools for developing ordinal methods, evaluating consistency with utility theory, appropriate statistical methods for analysis, generalizability of results and comparing ordinal methods against each other and with cardinal measures.

  10. Evaluation of methods for the assay of radium-228 in water

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Noyce, J.R.

    1981-02-01

    The technical literature from 1967 to May 1980 was searched for methods for assaying radium-228 in water. These methods were evaluated for their suitability as potential EPA reference methods for drinking water assays. The authors suggest the present EPA reference method (Krieger, 1976) be retained but improved, and a second method (McCurdy and Mellor, 1979), which employs beta-gamma coincidence counting, be added. Included in this report is a table that lists the principal features of 17 methods for radium-228 assays.

  11. Including α s1 casein gene information in genomic evaluations of French dairy goats.

    PubMed

    Carillier-Jacquin, Céline; Larroque, Hélène; Robert-Granié, Christèle

    2016-08-04

    Genomic best linear unbiased prediction methods assume that all markers explain the same fraction of the genetic variance and do not account effectively for genes with major effects such as the α s1 casein polymorphism in dairy goats. In this study, we investigated methods to include the available α s1 casein genotype effect in genomic evaluations of French dairy goats. First, the α s1 casein genotype was included as a fixed effect in genomic evaluation models based only on bucks that were genotyped at the α s1 casein locus. Less than 1 % of the females with phenotypes were genotyped at the α s1 casein gene. Thus, to incorporate these female phenotypes in the genomic evaluation, two methods that allowed for this large number of missing α s1 casein genotypes were investigated. Probabilities for each possible α s1 casein genotype were first estimated for each female of unknown genotype based on iterative peeling equations. The second method is based on a multiallelic gene content approach. For each model tested, we used three datasets each divided into a training and a validation set: (1) two-breed population (Alpine + Saanen), (2) Alpine population, and (3) Saanen population. The α s1 casein genotype had a significant effect on milk yield, fat content and protein content. Including an α s1 casein effect in genetic and genomic evaluations based only on male known α s1 casein genotypes improved accuracies (from 6 to 27 %). In genomic evaluations based on all female phenotypes, the gene content approach performed better than the other tested methods but the improvement in accuracy was only slightly better (from 1 to 14 %) than that of a genomic model without the α s1 casein effect. Including the α s1 casein effect in a genomic evaluation model for French dairy goats is possible and useful to improve accuracy. Difficulties in predicting the genotypes for ungenotyped animals limited the improvement in accuracy of the obtained estimated breeding values.

  12. Evaluation of the methods for enumerating coliform bacteria from water samples using precise reference standards.

    PubMed

    Wohlsen, T; Bates, J; Vesey, G; Robinson, W A; Katouli, M

    2006-04-01

    To use BioBall cultures as a precise reference standard to evaluate methods for enumeration of Escherichia coli and other coliform bacteria in water samples. Eight methods were evaluated including membrane filtration, standard plate count (pour and spread plate methods), defined substrate technology methods (Colilert and Colisure), the most probable number method and the Petrifilm disposable plate method. Escherichia coli and Enterobacter aerogenes BioBall cultures containing 30 organisms each were used. All tests were performed using 10 replicates. The mean recovery of both bacteria varied with the different methods employed. The best and most consistent results were obtained with Petrifilm and the pour plate method. Other methods either yielded a low recovery or showed significantly high variability between replicates. The BioBall is a very suitable quality control tool for evaluating the efficiency of methods for bacterial enumeration in water samples.

  13. Risks Associated with Federal Construction Projects

    DTIC Science & Technology

    2011-06-01

    awarding contracts for construction projects (USACE, 2010). BIM offers a method to effectively design a facility while maximizing work performance during...includes Requirements, Programming, Funding, Solicitation, AEC Evaluation, Award , Project Validation, Design and Construction, and Project Management...includes the Solicitation, AEC Evaluation, and Award Steps. In this Phase, BIM is only used in the Solicitation and the AEC Evaluation steps

  14. Effect of genotyped cows in the reference population on the genomic evaluation of Holstein cattle.

    PubMed

    Uemoto, Y; Osawa, T; Saburi, J

    2017-03-01

    This study evaluated the dependence of reliability and prediction bias on the prediction method, the contribution of including animals (bulls or cows), and the genetic relatedness, when including genotyped cows in the progeny-tested bull reference population. We performed genomic evaluation using a Japanese Holstein population, and assessed the accuracy of genomic enhanced breeding value (GEBV) for three production traits and 13 linear conformation traits. A total of 4564 animals for production traits and 4172 animals for conformation traits were genotyped using Illumina BovineSNP50 array. Single- and multi-step methods were compared for predicting GEBV in genotyped bull-only and genotyped bull-cow reference populations. No large differences in realized reliability and regression coefficient were found between the two reference populations; however, a slight difference was found between the two methods for production traits. The accuracy of GEBV determined by single-step method increased slightly when genotyped cows were included in the bull reference population, but decreased slightly by multi-step method. A validation study was used to evaluate the accuracy of GEBV when 800 additional genotyped bulls (POPbull) or cows (POPcow) were included in the base reference population composed of 2000 genotyped bulls. The realized reliabilities of POPbull were higher than those of POPcow for all traits. For the gain of realized reliability over the base reference population, the average ratios of POPbull gain to POPcow gain for production traits and conformation traits were 2.6 and 7.2, respectively, and the ratios depended on heritabilities of the traits. For regression coefficient, no large differences were found between the results for POPbull and POPcow. Another validation study was performed to investigate the effect of genetic relatedness between cows and bulls in the reference and test populations. The effect of genetic relationship among bulls in the reference population was also assessed. The results showed that it is important to account for relatedness among bulls in the reference population. Our studies indicate that the prediction method, the contribution ratio of including animals, and genetic relatedness could affect the prediction accuracy in genomic evaluation of Holstein cattle, when including genotyped cows in the reference population.

  15. Chapter 18: Variable Frequency Drive Evaluation Protocol. The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Romberger, Jeff

    An adjustable-speed drive (ASD) includes all devices that vary the speed of a rotating load, including those that vary the motor speed and linkage devices that allow constant motor speed while varying the load speed. The Variable Frequency Drive Evaluation Protocol presented here addresses evaluation issues for variable-frequency drives (VFDs) installed on commercial and industrial motor-driven centrifugal fans and pumps for which torque varies with speed. Constant torque load applications, such as those for positive displacement pumps, are not covered by this protocol.

  16. A guide to the use of distance sampling to estimate abundance of Karner blue butterflies

    USGS Publications Warehouse

    Grundel, Ralph

    2015-01-01

    This guide is intended to describe the use of distance sampling as a method for evaluating the abundance of Karner blue butterflies at a location. Other methods for evaluating abundance exist, including mark-release-recapture and index counts derived from Pollard-Yates surveys, for example. Although this guide is not intended to be a detailed comparison of the pros and cons of each type of method, there are important preliminary considerations to think about before selecting any method for evaluating the abundance of Karner blue butterflies.

  17. Nondestructive testing of a weld repair on the I-65 Bridge over the Ohio River at Louisville.

    DOT National Transportation Integrated Search

    2009-06-01

    Nondestructive evaluation methods were applied to verify the structural integrity of a fracture critical structural member on the I-65 John F. Kennedy Memorial Bridge over the Ohio River at Louisville. Several nondestructive evaluation methods includ...

  18. DOE Office of Scientific and Technical Information (OSTI.GOV)

    Seth, Arpan; Klise, Katherine A.; Siirola, John D.

    In the event of contamination in a water distribution network (WDN), source identification (SI) methods that analyze sensor data can be used to identify the source location(s). Knowledge of the source location and characteristics are important to inform contamination control and cleanup operations. Various SI strategies that have been developed by researchers differ in their underlying assumptions and solution techniques. The following manuscript presents a systematic procedure for testing and evaluating SI methods. The performance of these SI methods is affected by various factors including the size of WDN model, measurement error, modeling error, time and number of contaminant injections,more » and time and number of measurements. This paper includes test cases that vary these factors and evaluates three SI methods on the basis of accuracy and specificity. The tests are used to review and compare these different SI methods, highlighting their strengths in handling various identification scenarios. These SI methods and a testing framework that includes the test cases and analysis tools presented in this paper have been integrated into EPA’s Water Security Toolkit (WST), a suite of software tools to help researchers and others in the water industry evaluate and plan various response strategies in case of a contamination incident. Lastly, a set of recommendations are made for users to consider when working with different categories of SI methods.« less

  19. Review of methods for measuring β-cell function: Design considerations from the Restoring Insulin Secretion (RISE) Consortium.

    PubMed

    Hannon, Tamara S; Kahn, Steven E; Utzschneider, Kristina M; Buchanan, Thomas A; Nadeau, Kristen J; Zeitler, Philip S; Ehrmann, David A; Arslanian, Silva A; Caprio, Sonia; Edelstein, Sharon L; Savage, Peter J; Mather, Kieren J

    2018-01-01

    The Restoring Insulin Secretion (RISE) study was initiated to evaluate interventions to slow or reverse the progression of β-cell failure in type 2 diabetes (T2D). To design the RISE study, we undertook an evaluation of methods for measurement of β-cell function and changes in β-cell function in response to interventions. In the present paper, we review approaches for measurement of β-cell function, focusing on methodologic and feasibility considerations. Methodologic considerations included: (1) the utility of each technique for evaluating key aspects of β-cell function (first- and second-phase insulin secretion, maximum insulin secretion, glucose sensitivity, incretin effects) and (2) tactics for incorporating a measurement of insulin sensitivity in order to adjust insulin secretion measures for insulin sensitivity appropriately. Of particular concern were the capacity to measure β-cell function accurately in those with poor function, as is seen in established T2D, and the capacity of each method for demonstrating treatment-induced changes in β-cell function. Feasibility considerations included: staff burden, including time and required methodological expertise; participant burden, including time and number of study visits; and ease of standardizing methods across a multicentre consortium. After this evaluation, we selected a 2-day measurement procedure, combining a 3-hour 75-g oral glucose tolerance test and a 2-stage hyperglycaemic clamp procedure, augmented with arginine. © 2017 John Wiley & Sons Ltd.

  20. Preinvestigation evaluation of corrective measure technologies for the Badger Army Ammunition Plant

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Benioff, P.A.; Tsai, S.Y.

    1989-02-01

    This report briefly describes and evaluates the suitability of corrective measure technologies for possible use at the solid waste management units (SWMUs) at the Badger Army Ammunition Plant (BAAP), near Baraboo, Wisconsin. Corrective measure technologies considered for contaminated soils include excavation plus on- or off-site disposal in landfills or by incineration, use of solidification or stabilization methods, and in-situ methods such as bioreclamation and chemical or physical methods. Technologies considered for treatment of contaminated groundwater include groundwater pumping followed by discharge or treatment by air stripping and use of subsurface barriers. 5 refs., 1 tab.

  1. Evaluating Tenured Teachers: A Practical Approach.

    ERIC Educational Resources Information Center

    DePasquale, Daniel, Jr.

    1990-01-01

    Teachers with higher order needs benefit from expressing their creativity and exercising valued skills. The evaluation process should encourage experienced teachers to grow professionally and move toward self-actualization. The suggested evaluation model includes an evaluation conference, a choice of evaluation method, a planning conference, an…

  2. Participatory methods for Inuit public health promotion and programme evaluation in Nunatsiavut, Canada.

    PubMed

    Saini, Manpreet

    2017-01-01

    Engaging stakeholders is crucial for health promotion and programme evaluations; understanding how to best engage stakeholders is less clear, especially within Indigenous communities. The objectives of this thesis research were to use participatory methods to: (1) co-develop and evaluate a whiteboard video for use as a public health promotion tool in Rigolet, Nunatsiavut, and (2) develop and validate a framework for participatory evaluation of Inuit public health initiatives in Nunatsiavut, Labrador. Data collection tools included interactive workshops, community events, interviews, focus-group discussions and surveys. Results indicated the whiteboard video was an engaging and suitable medium for sharing public health messaging due to its contextually relevant elements. Participants identified 4 foundational evaluation framework components necessary to conduct appropriate evaluations, including: (1) community engagement, (2) collaborative evaluation development, (3) tailored evaluation data collection and (4) evaluation scope. This research illustrates stakeholder participation is critical to develop and evaluate contextually relevant public health initiatives in Nunatsiavut, Labrador and should be considered in other Indigenous communities.

  3. Field-based evaluation of a male-specific (F+) RNA coliphage concentration method

    EPA Science Inventory

    Fecal contamination of water poses a significant risk to public health due to the potential presence of pathogens, including enteric viruses. Thus, sensitive, reliable and easy to use methods for the detection of microorganisms are needed to evaluate water quality. In this stud...

  4. Methods for a Rapid Systematic Review and Metaanalysis in Evaluating Selective Serotonin Reuptake Inhibitors for Premature Ejaculation

    ERIC Educational Resources Information Center

    Martyn-St. James, Marrissa; Cooper, Katy; Kaltenthaler, Eva

    2017-01-01

    The aim of this study was to evaluate a rapid systematic review method in which randomised controlled trial (RCT) data was extracted from existing reviews and subsequent RCTs. The method enabled: identification of RCTs not included by existing reviews; cross-checking RCT data for consistency where there was more than one review; double data…

  5. Optimization and evaluation of a method to detect adenoviruses in river water

    EPA Pesticide Factsheets

    This dataset includes the recoveries of spiked adenovirus through various stages of experimental optimization procedures. This dataset is associated with the following publication:McMinn , B., A. Korajkic, and A. Grimm. Optimization and evaluation of a method to detect adenoviruses in river water. JOURNAL OF VIROLOGICAL METHODS. Elsevier Science Ltd, New York, NY, USA, 231(1): 8-13, (2016).

  6. Comparison of Computed Tomography and Chest Radiography in the Detection of Rib Fractures in Abused Infants

    ERIC Educational Resources Information Center

    Wootton-Gorges, Sandra L.; Stein-Wexler, Rebecca; Walton, John W.; Rosas, Angela J.; Coulter, Kevin P.; Rogers, Kristen K.

    2008-01-01

    Purpose: Chest radiographs (CXR) are the standard method for evaluating rib fractures in abused infants. Computed tomography (CT) is a sensitive method to detect rib fractures. The purpose of this study was to compare CT and CXR in the evaluation of rib fractures in abused infants. Methods: This retrospective study included all 12 abused infants…

  7. Assessing Change in the Teaching Practice of Faculty in a Faculty Development Program for Primary Care Physicians: Toward a Mixed Method Evaluation Approach.

    ERIC Educational Resources Information Center

    Pinheiro, Sandro O.; Rohrer, Jonathan D.; Heimann, C. F. Larry

    This paper describes a mixed method evaluation study that was developed to assess faculty teaching behavior change in a faculty development fellowship program for community-based hospital faculty. Principles of adult learning were taught to faculty participants over the fellowship period. These included instruction in teaching methods, group…

  8. Nondestructive tests of regenerative chambers. [evaluating nondestructive methods of determining metal bond integrity

    NASA Technical Reports Server (NTRS)

    Malone, G. A.; Vecchies, L.; Wood, R.

    1974-01-01

    The capabilities and limitations of nondestructive evaluation methods were studied to detect and locate bond deficiencies in regeneratively cooled thrust chambers for rocket engines. Flat test panels and a cylinder were produced to simulate regeneratively cooled thrust chamber walls. Planned defects with various bond integrities were produced in the panels to evaluate the sensitivity, accuracy, and limitations of nondestructive methods to define and locate bond anomalies. Holography, acoustic emission, and ultrasonic scan were found to yield sufficient data to discern bond quality when used in combination and in selected sequences. Bonding techniques included electroforming and brazing. Materials of construction included electroformed nickel bonded to Nickel 200 and OFHC copper, electroformed copper bonded to OFHC copper, and 300 series stainless steel brazed to OFHC copper. Variations in outer wall strength, wall thickness, and defect size were evaluated for nondestructive test response.

  9. Testing contamination source identification methods for water distribution networks

    DOE PAGES

    Seth, Arpan; Klise, Katherine A.; Siirola, John D.; ...

    2016-04-01

    In the event of contamination in a water distribution network (WDN), source identification (SI) methods that analyze sensor data can be used to identify the source location(s). Knowledge of the source location and characteristics are important to inform contamination control and cleanup operations. Various SI strategies that have been developed by researchers differ in their underlying assumptions and solution techniques. The following manuscript presents a systematic procedure for testing and evaluating SI methods. The performance of these SI methods is affected by various factors including the size of WDN model, measurement error, modeling error, time and number of contaminant injections,more » and time and number of measurements. This paper includes test cases that vary these factors and evaluates three SI methods on the basis of accuracy and specificity. The tests are used to review and compare these different SI methods, highlighting their strengths in handling various identification scenarios. These SI methods and a testing framework that includes the test cases and analysis tools presented in this paper have been integrated into EPA’s Water Security Toolkit (WST), a suite of software tools to help researchers and others in the water industry evaluate and plan various response strategies in case of a contamination incident. Lastly, a set of recommendations are made for users to consider when working with different categories of SI methods.« less

  10. Enhancement in Evaluating Small Group Work in Courses with Large Number of Students. Machine Theory at Industrial Engineering Degrees

    ERIC Educational Resources Information Center

    Jordi Nebot, Lluïsa; Pàmies-Vilà, Rosa; Català Calderon, Pau; Puig-Ortiz, Joan

    2013-01-01

    This article examines new tutoring evaluation methods to be adopted in the course, Machine Theory, in the Escola Tècnica Superior d'Enginyeria Industrial de Barcelona (ETSEIB, Universitat Politècnica de Catalunya). These new methods have been developed in order to facilitate teaching staff work and include students in the evaluation process.…

  11. Developing a Mind-Body Exercise Programme for Stressed Children

    ERIC Educational Resources Information Center

    Wang, Claudia; Seo, Dong-Chul; Geib, Roy W

    2017-01-01

    Objective: To describe the process of developing a Health Qigong programme for stressed children using a formative evaluation approach. Methods: A multi-step formative evaluation method was utilised. These steps included (1) identifying programme content and drafting the curriculum, (2) synthesising effective and age-appropriate pedagogies, (3)…

  12. [Evaluation of inflammatory cells (tumor infiltrating lymphocytes - TIL) in malignant melanoma].

    PubMed

    Dundr, Pavel; Němejcová, Kristýna; Bártů, Michaela; Tichá, Ivana; Jakša, Radek

    2018-01-01

    The evaluation of inflammatory infiltrate (tumor infiltrating lymphocytes - TIL) should be a standard part of biopsy examination for malignant melanoma. Currently, the most commonly used assessment method according to Clark is not optimal and there have been attempts to find an alternative system. Here we present an overview of possible approaches involving five different evaluation methods based on hematoxylin-eosin staining, including the recent suggestion of unified TIL evaluation method for all solid tumors. The issue of methodology, prognostic and predictive significance of TIL determination as well as the importance of immunohistochemical subtyping of inflammatory infiltrate is discussed.

  13. Evaluation Methods Sourcebook.

    ERIC Educational Resources Information Center

    Love, Arnold J., Ed.

    The chapters commissioned for this book describe key aspects of evaluation methodology as they are practiced in a Canadian context, providing representative illustrations of recent developments in evaluation methodology as it is currently applied. The following chapters are included: (1) "Program Evaluation with Limited Fiscal and Human…

  14. Prospects for Public Library Evaluation.

    ERIC Educational Resources Information Center

    Van House, Nancy A.; Childers, Thomas

    1991-01-01

    Discusses methods of evaluation that can be used to measure public library effectiveness, based on a conference sponsored by the Council on Library Resources. Topics discussed include the Public Library Effectiveness Study (PLES), quantitative and qualitative evaluation, using evaluative information for resource acquisition and resource…

  15. MDCT evaluation of potential living renal donor, prior to laparoscopic donor nephrectomy: What the transplant surgeon wants to know?

    PubMed Central

    Ghonge, Nitin P; Gadanayak, Satyabrat; Rajakumari, Vijaya

    2014-01-01

    As Laparoscopic Donor Nephrectomy (LDN) offers several advantages for the donor such as lesser post-operative pain, fewer cosmetic concerns and faster recovery time, there is growing global trend towards LDN as compared to open nephrectomy. Comprehensive pre-LDN donor evaluation includes assessment of renal morphology including pelvi-calyceal and vascular system. Apart from donor selection, evaluation of the regional anatomy allows precise surgical planning. Due to limited visualization during laparoscopic renal harvesting, detailed pre-transplant evaluation of regional anatomy, including the renal venous anatomy is of utmost importance. MDCT is the modality of choice for pre-LDN evaluation of potential renal donors. Apart from appropriate scan protocol and post-processing methods, detailed understanding of surgical techniques is essential for the Radiologist for accurate image interpretation during pre-LDN MDCT evaluation of potential renal donors. This review article describes MDCT evaluation of potential living renal donor, prior to LDN with emphasis on scan protocol, post-processing methods and image interpretation. The article laid special emphasis on surgical perspectives of pre-LDN MDCT evaluation and addresses important points which transplant surgeons want to know. PMID:25489130

  16. Model‐based economic evaluations in smoking cessation and their transferability to new contexts: a systematic review

    PubMed Central

    Berg, Marrit L.; Cheung, Kei Long; Hiligsmann, Mickaël; Evers, Silvia; de Kinderen, Reina J. A.; Kulchaitanaroaj, Puttarin

    2017-01-01

    Abstract Aims To identify different types of models used in economic evaluations of smoking cessation, analyse the quality of the included models examining their attributes and ascertain their transferability to a new context. Methods A systematic review of the literature on the economic evaluation of smoking cessation interventions published between 1996 and April 2015, identified via Medline, EMBASE, National Health Service (NHS) Economic Evaluation Database (NHS EED), Health Technology Assessment (HTA). The checklist‐based quality of the included studies and transferability scores was based on the European Network of Health Economic Evaluation Databases (EURONHEED) criteria. Studies that were not in smoking cessation, not original research, not a model‐based economic evaluation, that did not consider adult population and not from a high‐income country were excluded. Findings Among the 64 economic evaluations included in the review, the state‐transition Markov model was the most frequently used method (n = 30/64), with quality adjusted life years (QALY) being the most frequently used outcome measure in a life‐time horizon. A small number of the included studies (13 of 64) were eligible for EURONHEED transferability checklist. The overall transferability scores ranged from 0.50 to 0.97, with an average score of 0.75. The average score per section was 0.69 (range = 0.35–0.92). The relative transferability of the studies could not be established due to a limitation present in the EURONHEED method. Conclusion All existing economic evaluations in smoking cessation lack in one or more key study attributes necessary to be fully transferable to a new context. PMID:28060453

  17. A review of the latest guidelines for NIBP device validation.

    PubMed

    Alpert, Bruce S; Quinn, David E; Friedman, Bruce A

    2013-12-01

    The current ISO Standard is accepted as the National Standard in almost every industrialized nation. An overview of the most recently adopted standards is provided. Standards writing groups including the Advancement of Medical Instrumentation Sphygmomanometer Committee and ISO JWG7 are working to expand standardized evaluation methods to include the evaluation of devices intended for use in environments where motion artifact is common. An Association for the Advancement of Medical Instrumentation task group on noninvasive blood pressure measurement in the presence of motion artifact has published a technical information report containing research and standardized methods for the evaluation of blood pressure device performance in the presence of motion artifact.

  18. The Estimation and Inclusion of Presenteeism Costs in Applied Economic Evaluation: A Systematic Review.

    PubMed

    Kigozi, Jesse; Jowett, Sue; Lewis, Martyn; Barton, Pelham; Coast, Joanna

    2017-03-01

    Given the significant costs of reduced productivity (presenteeism) in comparison to absenteeism, and overall societal costs, presenteeism has a potentially important role to play in economic evaluations. However, these costs are often excluded. The objective of this study is to review applied cost of illness studies and economic evaluations to identify valuation methods used for, and impact of including presenteeism costs in practice. A structured systematic review was carried out to explore (i) the extent to which presenteeism has been applied in cost of illness studies and economic evaluations and (ii) the overall impact of including presenteeism on overall costs and outcomes. Potential articles were identified by searching Medline, PsycINFO and NHS EED databases. A standard template was developed and used to extract information from economic evaluations and cost of illness studies incorporating presenteeism costs. A total of 28 studies were included in the systematic review which also demonstrated that presenteeism costs are rarely included in full economic evaluations. Estimation and monetisation methods differed between the instruments. The impact of disease on presenteeism whilst in paid work is high. The potential impact of presenteeism costs needs to be highlighted and greater consideration should be given to including these in economic evaluations and cost of illness studies. The importance of including presenteeism costs when conducting economic evaluation from a societal perspective should be emphasised in national economic guidelines and more methodological work is required to improve the practical application of presenteeism instruments to generate productivity cost estimates. Copyright © 2017 International Society for Pharmacoeconomics and Outcomes Research (ISPOR). Published by Elsevier Inc. All rights reserved.

  19. Assessing the Subsequent Effect of a Formative Evaluation on a Program.

    ERIC Educational Resources Information Center

    Brown, J. Lynne; Kiernan, Nancy Ellen

    2001-01-01

    Conducted a formative evaluation of an osteoporosis prevention health education program using several methods, including questionnaires completed by 256 women, and then compared formative evaluation results to those of a summative evaluation focusing on the same target group. Results show the usefulness of formative evaluation for strengthening…

  20. Methods for Evaluating Mammography Imaging Techniques

    DTIC Science & Technology

    1999-06-01

    Distribution Unlimited 12b. DIS5TRIBUTION CODE 13. ABSTRACT (Maximum 200 words) This Department of Defense Breast Cancer Research Program Career...Development Award is enabling Dr. Rütter to develop bio’statistical methods for breast cancer research. Dr. Rutter is focusing on methods for...evaluating the accuracy of breast cancer screening. This four year program includes advanced training in the epidemiology of breast cancer , training in

  1. Using a fuzzy comprehensive evaluation method to determine product usability: A test case

    PubMed Central

    Zhou, Ronggang; Chan, Alan H. S.

    2016-01-01

    BACKGROUND: In order to take into account the inherent uncertainties during product usability evaluation, Zhou and Chan [1] proposed a comprehensive method of usability evaluation for products by combining the analytic hierarchy process (AHP) and fuzzy evaluation methods for synthesizing performance data and subjective response data. This method was designed to provide an integrated framework combining the inevitable vague judgments from the multiple stages of the product evaluation process. OBJECTIVE AND METHODS: In order to illustrate the effectiveness of the model, this study used a summative usability test case to assess the application and strength of the general fuzzy usability framework. To test the proposed fuzzy usability evaluation framework [1], a standard summative usability test was conducted to benchmark the overall usability of a specific network management software. Based on the test data, the fuzzy method was applied to incorporate both the usability scores and uncertainties involved in the multiple components of the evaluation. Then, with Monte Carlo simulation procedures, confidence intervals were used to compare the reliabilities among the fuzzy approach and two typical conventional methods combining metrics based on percentages. RESULTS AND CONCLUSIONS: This case study showed that the fuzzy evaluation technique can be applied successfully for combining summative usability testing data to achieve an overall usability quality for the network software evaluated. Greater differences of confidence interval widths between the method of averaging equally percentage and weighted evaluation method, including the method of weighted percentage averages, verified the strength of the fuzzy method. PMID:28035942

  2. An improved algorithm for evaluating trellis phase codes

    NASA Technical Reports Server (NTRS)

    Mulligan, M. G.; Wilson, S. G.

    1982-01-01

    A method is described for evaluating the minimum distance parameters of trellis phase codes, including CPFSK, partial response FM, and more importantly, coded CPM (continuous phase modulation) schemes. The algorithm provides dramatically faster execution times and lesser memory requirements than previous algorithms. Results of sample calculations and timing comparisons are included.

  3. An improved algorithm for evaluating trellis phase codes

    NASA Technical Reports Server (NTRS)

    Mulligan, M. G.; Wilson, S. G.

    1984-01-01

    A method is described for evaluating the minimum distance parameters of trellis phase codes, including CPFSK, partial response FM, and more importantly, coded CPM (continuous phase modulation) schemes. The algorithm provides dramatically faster execution times and lesser memory requirements than previous algorithms. Results of sample calculations and timing comparisons are included.

  4. Development of new methodologies for evaluating the energy performance of new commercial buildings

    NASA Astrophysics Data System (ADS)

    Song, Suwon

    The concept of Measurement and Verification (M&V) of a new building continues to become more important because efficient design alone is often not sufficient to deliver an efficient building. Simulation models that are calibrated to measured data can be used to evaluate the energy performance of new buildings if they are compared to energy baselines such as similar buildings, energy codes, and design standards. Unfortunately, there is a lack of detailed M&V methods and analysis methods to measure energy savings from new buildings that would have hypothetical energy baselines. Therefore, this study developed and demonstrated several new methodologies for evaluating the energy performance of new commercial buildings using a case-study building in Austin, Texas. First, three new M&V methods were developed to enhance the previous generic M&V framework for new buildings, including: (1) The development of a method to synthesize weather-normalized cooling energy use from a correlation of Motor Control Center (MCC) electricity use when chilled water use is unavailable, (2) The development of an improved method to analyze measured solar transmittance against incidence angle for sample glazing using different solar sensor types, including Eppley PSP and Li-Cor sensors, and (3) The development of an improved method to analyze chiller efficiency and operation at part-load conditions. Second, three new calibration methods were developed and analyzed, including: (1) A new percentile analysis added to the previous signature method for use with a DOE-2 calibration, (2) A new analysis to account for undocumented exhaust air in DOE-2 calibration, and (3) An analysis of the impact of synthesized direct normal solar radiation using the Erbs correlation on DOE-2 simulation. Third, an analysis of the actual energy savings compared to three different energy baselines was performed, including: (1) Energy Use Index (EUI) comparisons with sub-metered data, (2) New comparisons against Standards 90.1-1989 and 90.1-2001, and (3) A new evaluation of the performance of selected Energy Conservation Design Measures (ECDMs). Finally, potential energy savings were also simulated from selected improvements, including: minimum supply air flow, undocumented exhaust air, and daylighting.

  5. Research on Comprehensive Evaluation Method for Heating Project Based on Analytic Hierarchy Processing

    NASA Astrophysics Data System (ADS)

    Han, Shenchao; Yang, Yanchun; Liu, Yude; Zhang, Peng; Li, Siwei

    2018-01-01

    It is effective to reduce haze in winter by changing the distributed heat supply system. Thus, the studies on comprehensive index system and scientific evaluation method of distributed heat supply project are essential. Firstly, research the influence factors of heating modes, and an index system with multiple dimension including economic, environmental, risk and flexibility was built and all indexes were quantified. Secondly, a comprehensive evaluation method based on AHP was put forward to analyze the proposed multiple and comprehensive index system. Lastly, the case study suggested that supplying heat with electricity has great advantage and promotional value. The comprehensive index system of distributed heating supply project and evaluation method in this paper can evaluate distributed heat supply project effectively and provide scientific support for choosing the distributed heating project.

  6. An Evaluation Model Applied to a Mathematics-Methods Program Involving Three Characteristics of Teaching Style and Their Relationship to Pupil Achievement. Teacher Education Forum; Volume 3, Number 4.

    ERIC Educational Resources Information Center

    Dodd, Carol Ann

    This study explores a technique for evaluating teacher education programs in terms of teaching competencies, as applied to the Indiana University Mathematics Methods Program (MMP). The evaluation procedures formulated for the study include a process product design in combination with a modification of Pophan's performance test paradigm and Gage's…

  7. Infrared non-destructive evaluation method and apparatus

    DOEpatents

    Baleine, Erwan; Erwan, James F; Lee, Ching-Pang; Stinelli, Stephanie

    2014-10-21

    A method of nondestructive evaluation and related system. The method includes arranging a test piece (14) having an internal passage (18) and an external surface (15) and a thermal calibrator (12) within a field of view (42) of an infrared sensor (44); generating a flow (16) of fluid characterized by a fluid temperature; exposing the test piece internal passage (18) and the thermal calibrator (12) to fluid from the flow (16); capturing infrared emission information of the test piece external surface (15) and of the thermal calibrator (12) simultaneously using the infrared sensor (44), wherein the test piece infrared emission information includes emission intensity information, and wherein the thermal calibrator infrared emission information includes a reference emission intensity associated with the fluid temperature; and normalizing the test piece emission intensity information against the reference emission intensity.

  8. The Aristotle method: a new concept to evaluate quality of care based on complexity.

    PubMed

    Lacour-Gayet, François; Clarke, David R

    2005-06-01

    Evaluation of quality of care is a duty of the modern medical practice. A reliable method of quality evaluation able to compare fairly institutions and inform a patient and his family of the potential risk of a procedure is clearly needed. It is now well recognized that any method that purports to evaluate quality of care should include a case mix/risk stratification method. No valuable method was available until recently in pediatric cardiac surgery. The Aristotle method is a new concept of evaluation of quality of care in congenital heart surgery based on the complexity of the surgical procedures. Involving a panel of expert surgeons, the project started in 1999 and included 50 pediatric surgeons from 23 countries. The basic score adjusts the complexity of a given procedure and is calculated as the sum of potential for mortality, potential for morbidity and anticipated technical difficulty. The Comprehensive Score further adjusts the complexity according to the specific patient characteristics (anatomy, associated procedures, co-morbidity, etc.). The Aristotle method is original as it introduces several new concepts: the calculated complexity is a constant for a given patient all over the world; complexity is an independent value and risk is a variable depending on the performance; and Performance = Complexity x Outcome. The Aristotle score is a good vector of communication between patients, doctors and insurance companies and may stimulate the quality and the organization of heath care in our field and in others.

  9. Process Evaluation of a Parenting Program for Low-Income Families in South Africa

    ERIC Educational Resources Information Center

    Lachman, Jamie M.; Kelly, Jane; Cluver, Lucie; Ward, Catherine L.; Hutchings, Judy; Gardner, Frances

    2018-01-01

    Objective: This mixed-methods process evaluation examined the feasibility of a parenting program delivered by community facilitators to reduce the risk of child maltreatment in low-income families with children aged 3-8 years in Cape Town, South Africa (N = 68). Method: Quantitative measures included attendance registers, fidelity checklists,…

  10. Multi-laboratory evaluations of the performance of Catellicoccus marimammalium PCR assays developed to target gull fecal sources

    EPA Science Inventory

    Here we report results from a multi-laboratory (n=11) evaluation of four different PCR methods targeting the 16S rRNA gene of Catellicoccus marimammalium used to detect fecal contamination from birds in coastal environments. The methods included conventional end-point PCR, a SYBR...

  11. Improving Reference Service: The Case for Using a Continuous Quality Improvement Method.

    ERIC Educational Resources Information Center

    Aluri, Rao

    1993-01-01

    Discusses the evaluation of library reference service; examines problems with past evaluations, including the lack of long-term planning and a systems perspective; and suggests a method for continuously monitoring and improving reference service using quality improvement tools such as checklists, cause and effect diagrams, Pareto charts, and…

  12. Using a fuzzy comprehensive evaluation method to determine product usability: A test case.

    PubMed

    Zhou, Ronggang; Chan, Alan H S

    2017-01-01

    In order to take into account the inherent uncertainties during product usability evaluation, Zhou and Chan [1] proposed a comprehensive method of usability evaluation for products by combining the analytic hierarchy process (AHP) and fuzzy evaluation methods for synthesizing performance data and subjective response data. This method was designed to provide an integrated framework combining the inevitable vague judgments from the multiple stages of the product evaluation process. In order to illustrate the effectiveness of the model, this study used a summative usability test case to assess the application and strength of the general fuzzy usability framework. To test the proposed fuzzy usability evaluation framework [1], a standard summative usability test was conducted to benchmark the overall usability of a specific network management software. Based on the test data, the fuzzy method was applied to incorporate both the usability scores and uncertainties involved in the multiple components of the evaluation. Then, with Monte Carlo simulation procedures, confidence intervals were used to compare the reliabilities among the fuzzy approach and two typical conventional methods combining metrics based on percentages. This case study showed that the fuzzy evaluation technique can be applied successfully for combining summative usability testing data to achieve an overall usability quality for the network software evaluated. Greater differences of confidence interval widths between the method of averaging equally percentage and weighted evaluation method, including the method of weighted percentage averages, verified the strength of the fuzzy method.

  13. Evaluation of a new ultrasensitive assay for cardiac troponin I.

    PubMed

    Casals, Gregori; Filella, Xavier; Bedini, Josep Lluis

    2007-12-01

    We evaluated the analytical and clinical performance of a new ultrasensitive cardiac troponin I assay (cTnI) on the ADVIA Centaur system (TnI-Ultra). The evaluation included the determination of detection limit, within-assay and between-assay variation and comparison with two other non-ultrasensitive methods. Moreover, cTnI was determined in 120 patients with acute chest pain with three methods. To evaluate the ability of the new method to detect MI earlier, it was assayed in 8 MI patients who first tested negative then positive by the other methods. The detection limit was 0.009 microg/L and imprecision was <10% at all concentrations evaluated. In comparison with two other methods, 10% of the anginas diagnosed were recategorized to MI. The ADVIA Centaur TnI-Ultra assay presented high reproducibility and high sensitivity. The use of the recommended lower cutpoint (0.044 microg/L) implied an increased and earlier identification of MI.

  14. What is the quality of economic evaluations of non-drug therapies? A systematic review and critical appraisal of economic evaluations of radiotherapy for cancer.

    PubMed

    Barbieri, M; Weatherly, H L A; Ara, R; Basarir, H; Sculpher, M; Adams, R; Ahmed, H; Coles, C; Guerrero-Urbano, T; Nutting, C; Powell, M

    2014-10-01

    Breast, cervical and colorectal cancers are the three most frequent cancers in women, while lung, prostate and colorectal cancers are the most frequent in men. Much attention has been given to the economic evaluation of pharmaceuticals for treatment of cancer by the National Institute for Health and Care Excellence (NICE) in the UK and similar authorities internationally, while economic analysis developed for other types of anti-cancer interventions, including radiotherapy and surgery, are less common. Our objective was to review methods used in published cost-effectiveness studies evaluating radiotherapy for breast, cervical, colorectal, head and neck and prostate cancer, and to compare the economic evaluation methods applied with those defined in the guidelines used by the NICE technology appraisal programme. A systematic search of seven databases (MEDLINE, EMBASE, CDSR, NHSEED, HTA, DARE, EconLit) as well as research registers, the NICE website and conference proceedings was conducted in July 2012. Only economic evaluations of radiotherapy interventions in individuals diagnosed with cancer that included quality-adjusted life-years (QALYs) or life-years (LYs) were included. Included studies were appraised on the basis of satisfying essential, preferred and UK-specific methods requirements, building on the NICE Reference Case for economic evaluations and on other methods guidelines. A total of 29 studies satisfied the inclusion criteria (breast 14, colorectal 2, prostate 10, cervical 0, head and neck 3). Only two studies were conducted in the UK (13 in the USA). Among essential methods criteria, the main issue was that only three (10%) of the studies used clinical-effectiveness estimates identified through systematic review of the literature. Similarly, only eight (28%) studies sourced health-related quality-of-life data directly from patients with the condition of interest. Other essential criteria (e.g. clear description of comparators, patient group indication and appropriate time horizon) were generally fulfilled, while most of the UK-specific requirements were not met. Based on this review there is a dearth of up-to-date, robust evidence on the cost effectiveness of radiotherapy in cancer suitable to support decision making in the UK. Studies selected did not fully satisfy essential method standards currently recommended by NICE.

  15. Current Practices in Constructing and Evaluating Assurance Cases With Applications to Aviation

    NASA Technical Reports Server (NTRS)

    Rinehart, David J.; Knight, John C.; Rowanhill, Jonathan

    2015-01-01

    This report introduces and provides an overview of assurance cases including theory, practice, and evaluation. This report includes a section that introduces the principles, terminology, and history of assurance cases. The core of the report presents twelve example uses of assurance cases from a range of domains, using a novel classification scheme. The report also reviews the state of the art in assurance case evaluation methods.

  16. Assessment of SOAP note evaluation tools in colleges and schools of pharmacy.

    PubMed

    Sando, Karen R; Skoy, Elizabeth; Bradley, Courtney; Frenzel, Jeanne; Kirwin, Jennifer; Urteaga, Elizabeth

    2017-07-01

    To describe current methods used to assess SOAP notes in colleges and schools of pharmacy. Members of the American Association of Colleges of Pharmacy Laboratory Instructors Special Interest Group were invited to share assessment tools for SOAP notes. Content of submissions was evaluated to characterize overall qualities and how the tools assessed subjective, objective, assessment, and plan information. Thirty-nine assessment tools from 25 schools were evaluated. Twenty-nine (74%) of the tools were rubrics and ten (26%) were checklists. All rubrics included analytic scoring elements, while two (7%) were mixed with holistic and analytic scoring elements. A majority of the rubrics (35%) used a four-item rating scale. Substantial variability existed in how tools evaluated subjective and objective sections. All tools included problem identification in the assessment section. Other assessment items included goals (82%) and rationale (69%). Seventy-seven percent assessed drug therapy; however, only 33% assessed non-drug therapy. Other plan items included education (59%) and follow-up (90%). There is a great deal of variation in the specific elements used to evaluate SOAP notes in colleges and schools of pharmacy. Improved consistency in assessment methods to evaluate SOAP notes may better prepare students to produce standardized documentation when entering practice. Copyright © 2017 Elsevier Inc. All rights reserved.

  17. Arizona Indian Demographic Data: Needs and Recommendations.

    ERIC Educational Resources Information Center

    Taylor, Benjamin J.; Helmkamp, John

    Included in this report on Arizona Indian demographic data are "an evaluation of several recent studies of Indian populations" and "an extensive analysis of methods for obtaining and maintaining accurate data in the future." Recommended methods by which accurate population data for the smaller reservations should be maintained are included in the…

  18. Using Corporate-Based Methods To Assess Technical Communication Programs.

    ERIC Educational Resources Information Center

    Faber, Brenton; Bekins, Linn; Karis, Bill

    2002-01-01

    Investigates methods of program assessment used by corporate learning sites and profiles value added methods as a way to both construct and evaluate academic programs in technical communication. Examines and critiques assessment methods from corporate training environments including methods employed by corporate universities and value added…

  19. [Discussion on Quality Evaluation Method of Medical Device During Life-Cycle in Operation Based on the Analytic Hierarchy Process].

    PubMed

    Zheng, Caixian; Zheng, Kun; Shen, Yunming; Wu, Yunyun

    2016-01-01

    The content related to the quality during life-cycle in operation of medical device includes daily use, repair volume, preventive maintenance, quality control and adverse event monitoring. In view of this, the article aims at discussion on the quality evaluation method of medical devices during their life cycle in operation based on the Analytic Hierarchy Process (AHP). The presented method is proved to be effective by evaluating patient monitors as example. The method presented in can promote and guide the device quality control work, and it can provide valuable inputs to decisions about purchase of new device.

  20. Evaluation of Telephone Health Coaching of German Health Insurants with Chronic Conditions

    ERIC Educational Resources Information Center

    Härter, Martin; Dwinger, Sarah; Seebauer, Laura; Simon, Daniela; Herbarth, Lutz; Siegmund-Schultze, Elisabeth; Temmert, Daniel; Bermejo, Isaac; Dirmaier, Jörg

    2013-01-01

    Objective: This study aimed to investigate how patients with chronic conditions evaluate telephone health coaching provided by their health insurance company. Methods: A retrospective survey was conducted among coaching participants ("n" = 834). Outcomes included the general evaluation of the coaching, the evaluation of process and…

  1. Evaluating a vessel for suitability for containing fluid

    DOEpatents

    Barefield, II, James E.; Judge, Elizabeth J.; Le, Loan A.; Lopez, Leon N.; Beveridge, Andrew C.; Chapman, Daniel R.; Taylor, Seth T.

    2017-05-30

    A method for evaluating a vessel for suitability to contain a fluid includes providing a vessel and forming a polished surface portion of the vessel by removing oxidation and/or contaminants from a portion of the vessel. The method further includes applying a focused laser to the polished surface portion to form plasma on the polished surface portion, and determining whether the vessel is suitable for containing a fluid based on silicon content of the polished surface portion. The silicon content is estimated based on light emitted from the plasma.

  2. A usability evaluation of Lazada mobile application

    NASA Astrophysics Data System (ADS)

    Hussain, Azham; Mkpojiogu, Emmanuel O. C.; Jamaludin, Nur Hafiza; Moh, Somia T. L.

    2017-10-01

    This paper reports on a usability evaluation of Lazada mobile application, an online shopping app for mobile devices. The evaluation was conducted using 12 users of ages 18 to 24. Seven (7) were expert users and the other 5 were novice users. The study objectives were to evaluate the perceived effectiveness, efficiency and satisfaction of the mobile application. The result provides a positive feedback and shows that the mobile shopping app is effective, efficient, and satisfying as perceived by the study participants. However, there are some observed usability issues with the main menu and the payment method that necessitates improvements to increase the application's effectiveness, efficiency and satisfaction. The suggested improvements include: 1) the main menu should be capitalized and place on the left side of mobile app and 2) payment method tutorial should be included as a hyperlink in the payment method page. This observation will be helpful to the owners of the application in future version development of the app.

  3. Test methods for optical disk media characteristics (for 356 mm ruggedized magneto-optic media)

    NASA Technical Reports Server (NTRS)

    Podio, Fernando L.

    1991-01-01

    Standard test methods for computer storage media characteristics are essential and allow for conformance to media interchange standards. The test methods were developed for 356 mm two-sided laminated glass substrate with a magneto-optic active layer media technology. These test methods may be used for testing other media types, but in each case their applicability must be evaluated. Test methods are included for a series of different media characteristics, including operational, nonoperational, and storage environments; mechanical and physical characteristics; and substrate, recording layer, and preformat characteristics. Tests for environmental qualification and media lifetimes are also included. The best methods include testing conditions, testing procedures, a description of the testing setup, and the required calibration procedures.

  4. Assessment Methods of Groundwater Overdraft Area and Its Application

    NASA Astrophysics Data System (ADS)

    Dong, Yanan; Xing, Liting; Zhang, Xinhui; Cao, Qianqian; Lan, Xiaoxun

    2018-05-01

    Groundwater is an important source of water, and long-term large demand make groundwater over-exploited. Over-exploitation cause a lot of environmental and geological problems. This paper explores the concept of over-exploitation area, summarizes the natural and social attributes of over-exploitation area, as well as expounds its evaluation methods, including single factor evaluation, multi-factor system analysis and numerical method. At the same time, the different methods are compared and analyzed. And then taking Northern Weifang as an example, this paper introduces the practicality of appraisal method.

  5. [Evaluating quality and effectiveness in the promotion of health: approaches and methods of public health and social sciences].

    PubMed

    Deccache, A

    1997-06-01

    Health promotion and health education have often been limited to evaluation of the effectiveness of actions and programmes. However, since 1996 with the Third European Conference on Health Promotion and Education Effectiveness, many researchers have become interested in "quality assessment" and new ways of thinking have emerged. Quality assurance is a concept and activity developed in industry with the objective of increasing production efficiency. There are two distinct approaches: External Standard Inspection (ESI) and Continuous Quality Improvement (CQI). ESI involves establishing criteria of quality, evaluating them and improving whatever needs improvement. CQI views the activity or service as a process and includes the quality assessment as part of the process. This article attempts to answer the questions of whether these methods are sufficient and suitable for operationalising the concepts of evaluation, effectiveness and quality in health promotion and education, whether it is necessary to complement them with other methods, and whether the ESI approach is appropriate. The first section of the article explains that health promotion is based on various paradigms from epidemiology to psychology and anthropology. Many authors warn against the exclusive use of public health disciplines for understanding, implementing and evaluating health promotion. The author argues that in practice, health promotion: -integrates preventive actions with those aiming to maintain and improve health, a characteristic which widens the actions of health promotion from those of classic public health which include essentially an epidemiological or "risk" focus; -aims to replace vertical approaches to prevention with a global approach based on educational sciences; -involves a community approach which includes the individual in a "central position of power" as much in the definition of needs as in the evaluation of services; -includes the participation and socio-political actions which necessitate the use of varied and specific instruments for action and evaluation. With the choice of health promotion ideology, there exist corresponding theories, concepts of quality, and therefore methods and techniques that differ from those used until now. The educational sciences have led to a widening of the definition of process to include both "throughput and input", which has meant that the methods of needs analysis, objective and priority setting and project development in health promotion have become objects of quality assessment. Also, the modes of action and interaction among actors are included, which has led to evaluation of ethical and ideological aspects of projects. The second section of the article discusses quality assessment versus evaluation of effectiveness. Different paradigms of evaluation such as the public health approach based on the measurement of (epidemiological) effectiveness, social marketing and communication, and the anthropological approach are briefly discussed, pointing out that there are many approaches which can both complement and contradict one another. The author explains the difference between impact (the intermediate effects, direct or indirect, planned or not planned, changes in practical or theoretical knowledge, perceptions, and attitudes) and results (final effects of mid to long term changes such as changes in morbidity, mortality, or access to services or cost of health care). He argues that by being too concerned with results of programmes, we have often ignored the issue of impact. Also, by limiting ourselves to evaluating effectiveness (i.e. that the expected effects were obtained), we ignore other possible unexpected, unplanned and positive and negative secondary effects. There are therefore many reasons to: -evaluate all possible effects rather than only those lined to objectives; -evaluate the entire process rather than only the resources, procedures and costs; -evaluate the impact rather than results; -evalu

  6. Measuring value for money: a scoping review on economic evaluation of health information systems

    PubMed Central

    Bassi, Jesdeep; Lau, Francis

    2013-01-01

    Objective To explore how key components of economic evaluations have been included in evaluations of health information systems (HIS), to determine the state of knowledge on value for money for HIS, and provide guidance for future evaluations. Materials and methods We searched databases, previously collected papers, and references for relevant papers published from January 2000 to June 2012. For selection, papers had to: be a primary study; involve a computerized system for health information processing, decision support, or management reporting; and include an economic evaluation. Data on study design and economic evaluation methods were extracted and analyzed. Results Forty-two papers were selected and 33 were deemed high quality (scores ≥8/10) for further analysis. These included 12 economic analyses, five input cost analyses, and 16 cost-related outcome analyses. For HIS types, there were seven primary care electronic medical records, six computerized provider order entry systems, five medication management systems, five immunization information systems, four institutional information systems, three disease management systems, two clinical documentation systems, and one health information exchange network. In terms of value for money, 23 papers reported positive findings, eight were inconclusive, and two were negative. Conclusions We found a wide range of economic evaluation papers that were based on different assumptions, methods, and metrics. There is some evidence of value for money in selected healthcare organizations and HIS types. However, caution is needed when generalizing these findings. Better reporting of economic evaluation studies is needed to compare findings and build on the existing evidence base we identified. PMID:23416247

  7. Evaluating marginal likelihood with thermodynamic integration method and comparison with several other numerical methods

    DOE PAGES

    Liu, Peigui; Elshall, Ahmed S.; Ye, Ming; ...

    2016-02-05

    Evaluating marginal likelihood is the most critical and computationally expensive task, when conducting Bayesian model averaging to quantify parametric and model uncertainties. The evaluation is commonly done by using Laplace approximations to evaluate semianalytical expressions of the marginal likelihood or by using Monte Carlo (MC) methods to evaluate arithmetic or harmonic mean of a joint likelihood function. This study introduces a new MC method, i.e., thermodynamic integration, which has not been attempted in environmental modeling. Instead of using samples only from prior parameter space (as in arithmetic mean evaluation) or posterior parameter space (as in harmonic mean evaluation), the thermodynamicmore » integration method uses samples generated gradually from the prior to posterior parameter space. This is done through a path sampling that conducts Markov chain Monte Carlo simulation with different power coefficient values applied to the joint likelihood function. The thermodynamic integration method is evaluated using three analytical functions by comparing the method with two variants of the Laplace approximation method and three MC methods, including the nested sampling method that is recently introduced into environmental modeling. The thermodynamic integration method outperforms the other methods in terms of their accuracy, convergence, and consistency. The thermodynamic integration method is also applied to a synthetic case of groundwater modeling with four alternative models. The application shows that model probabilities obtained using the thermodynamic integration method improves predictive performance of Bayesian model averaging. As a result, the thermodynamic integration method is mathematically rigorous, and its MC implementation is computationally general for a wide range of environmental problems.« less

  8. Evaluation of an automatic brain segmentation method developed for neonates on adult MR brain images

    NASA Astrophysics Data System (ADS)

    Moeskops, Pim; Viergever, Max A.; Benders, Manon J. N. L.; Išgum, Ivana

    2015-03-01

    Automatic brain tissue segmentation is of clinical relevance in images acquired at all ages. The literature presents a clear distinction between methods developed for MR images of infants, and methods developed for images of adults. The aim of this work is to evaluate a method developed for neonatal images in the segmentation of adult images. The evaluated method employs supervised voxel classification in subsequent stages, exploiting spatial and intensity information. Evaluation was performed using images available within the MRBrainS13 challenge. The obtained average Dice coefficients were 85.77% for grey matter, 88.66% for white matter, 81.08% for cerebrospinal fluid, 95.65% for cerebrum, and 96.92% for intracranial cavity, currently resulting in the best overall ranking. The possibility of applying the same method to neonatal as well as adult images can be of great value in cross-sectional studies that include a wide age range.

  9. A review of economic evaluations of behavior change interventions: setting an agenda for research methods and practice.

    PubMed

    Alayli-Goebbels, Adrienne F G; Evers, Silvia M A A; Alexeeva, Daria; Ament, André J H A; de Vries, Nanne K; Tilly, Jan C; Severens, Johan L

    2014-06-01

    The objective of this study was to review methodological quality of economic evaluations of lifestyle behavior change interventions (LBCIs) and to examine how they address methodological challenges for public health economic evaluation identified in the literature. Pubmed and the NHS economic evaluation database were searched for published studies in six key areas for behavior change: smoking, physical activity, dietary behavior, (illegal) drug use, alcohol use and sexual behavior. From included studies (n = 142), we extracted data on general study characteristics, characteristics of the LBCIs, methodological quality and handling of methodological challenges. Economic evaluation evidence for LBCIs showed a number of weaknesses: methods, study design and characteristics of evaluated interventions were not well reported; methodological quality showed several shortcomings and progress with addressing methodological challenges remained limited. Based on the findings of this review we propose an agenda for improving future evidence to support decision-making. Recommendations for practice include improving reporting of essential study details and increasing adherence with good practice standards. Recommendations for research methods focus on mapping out complex causal pathways for modeling, developing measures to capture broader domains of wellbeing and community outcomes, testing methods for considering equity, identifying relevant non-health sector costs and advancing methods for evidence synthesis. © The Author 2013. Published by Oxford University Press on behalf of Faculty of Public Health. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  10. A Comparison of Two Methods for Boolean Query Relevancy Feedback.

    ERIC Educational Resources Information Center

    Salton, G.; And Others

    1984-01-01

    Evaluates and compares two recently proposed automatic methods for relevance feedback of Boolean queries (Dillon method, which uses probabilistic approach as basis, and disjunctive normal form method). Conclusions are drawn concerning the use of effective feedback methods in a Boolean query environment. Nineteen references are included. (EJS)

  11. Cultural competence in mental health care: a review of model evaluations

    PubMed Central

    Bhui, Kamaldeep; Warfa, Nasir; Edonya, Patricia; McKenzie, Kwame; Bhugra, Dinesh

    2007-01-01

    Background Cultural competency is now a core requirement for mental health professionals working with culturally diverse patient groups. Cultural competency training may improve the quality of mental health care for ethnic groups. Methods A systematic review that included evaluated models of professional education or service delivery. Results Of 109 potential papers, only 9 included an evaluation of the model to improve the cultural competency practice and service delivery. All 9 studies were located in North America. Cultural competency included modification of clinical practice and organizational performance. Few studies published their teaching and learning methods. Only three studies used quantitative outcomes. One of these showed a change in attitudes and skills of staff following training. The cultural consultation model showed evidence of significant satisfaction by clinicians using the service. No studies investigated service user experiences and outcomes. Conclusion There is limited evidence on the effectiveness of cultural competency training and service delivery. Further work is required to evaluate improvement in service users' experiences and outcomes. PMID:17266765

  12. Multi-laboratory evaluations of the performance of Catellicoccus marimammalium PCR assays developed to target gull fecal sources

    USGS Publications Warehouse

    Sinigalliano, Christopher D.; Ervin, Jared S.; Van De Werfhorst, Laurie C.; Badgley, Brian D.; Ballestée, Elisenda; Bartkowiaka, Jakob; Boehm, Alexandria B.; Byappanahalli, Muruleedhara N.; Goodwin, Kelly D.; Gourmelon, Michèle; Griffith, John; Holden, Patricia A.; Jay, Jenny; Layton, Blythe; Lee, Cheonghoon; Lee, Jiyoung; Meijer, Wim G.; Noble, Rachel; Raith, Meredith; Ryu, Hodon; Sadowsky, Michael J.; Schriewer, Alexander; Wang, Dan; Wanless, David; Whitman, Richard; Wuertz, Stefan; Santo Domingo, Jorge W.

    2013-01-01

    Here we report results from a multi-laboratory (n = 11) evaluation of four different PCR methods targeting the 16S rRNA gene of Catellicoccus marimammalium originally developed to detect gull fecal contamination in coastal environments. The methods included a conventional end-point PCR method, a SYBR® Green qPCR method, and two TaqMan® qPCR methods. Different techniques for data normalization and analysis were tested. Data analysis methods had a pronounced impact on assay sensitivity and specificity calculations. Across-laboratory standardization of metrics including the lower limit of quantification (LLOQ), target detected but not quantifiable (DNQ), and target not detected (ND) significantly improved results compared to results submitted by individual laboratories prior to definition standardization. The unit of measure used for data normalization also had a pronounced effect on measured assay performance. Data normalization to DNA mass improved quantitative method performance as compared to enterococcus normalization. The MST methods tested here were originally designed for gulls but were found in this study to also detect feces from other birds, particularly feces composited from pigeons. Sequencing efforts showed that some pigeon feces from California contained sequences similar to C. marimammalium found in gull feces. These data suggest that the prevalence, geographic scope, and ecology of C. marimammalium in host birds other than gulls require further investigation. This study represents an important first step in the multi-laboratory assessment of these methods and highlights the need to broaden and standardize additional evaluations, including environmentally relevant target concentrations in ambient waters from diverse geographic regions.

  13. Use of Intermediate Endpoints in the Economic Evaluation of New Treatments for Advanced Cancer and Methods Adopted When Suitable Overall Survival Data are Not Available.

    PubMed

    Beauchemin, Catherine; Lapierre, Marie-Ève; Letarte, Nathalie; Yelle, Louise; Lachaine, Jean

    2016-09-01

    This study assessed the use of intermediate endpoints in the economic evaluation of new treatments for advanced cancer and the methodological approaches adopted when overall survival (OS) data are unavailable or of limited use. A systematic literature review was conducted to identify economic evaluations of treatments for advanced cancer published between 2003 and 2013. Cost-effectiveness and cost-utility analyses expressed in cost per life-year gained and cost per quality-adjusted life-year using an intermediate endpoint as an outcome measure were eligible. Characteristics of selected studies were extracted and comprised population, treatment of interest, comparator, line of treatment, study perspective, and time horizon. Use of intermediate endpoints and methods adopted when OS data were lacking were analyzed. In total, 7219 studies were identified and 100 fulfilled the eligibility criteria. Intermediate endpoints mostly used were progression-free survival and time to progression, accounting for 92 % of included studies. OS data were unavailable for analysis in nearly 25 % of economic evaluations. In the absence of OS data, studies most commonly assumed an equal risk of death for all treatment groups. Other methods included use of indirect comparison based on numerous assumptions, use of a proxy for OS, consultation with clinical experts, and use of published external information from different treatment settings. Intermediate endpoints are widely used in the economic evaluation of new treatments for advanced cancer in order to estimate OS. Currently, different methods are used in the absence of suitable OS data and the choice of an appropriate method depends on many factors including the data availability.

  14. Evaluation of background parenchymal enhancement on breast MRI: a systematic review

    PubMed Central

    Signori, Alessio; Valdora, Francesca; Rossi, Federica; Calabrese, Massimo; Durando, Manuela; Mariscotto, Giovanna; Tagliafico, Alberto

    2017-01-01

    Objective: To perform a systematic review of the methods used for background parenchymal enhancement (BPE) evaluation on breast MRI. Methods: Studies dealing with BPE assessment on breast MRI were retrieved from major medical libraries independently by four reviewers up to 6 October 2015. The keywords used for database searching are “background parenchymal enhancement”, “parenchymal enhancement”, “MRI” and “breast”. The studies were included if qualitative and/or quantitative methods for BPE assessment were described. Results: Of the 420 studies identified, a total of 52 articles were included in the systematic review. 28 studies performed only a qualitative assessment of BPE, 13 studies performed only a quantitative assessment and 11 studies performed both qualitative and quantitative assessments. A wide heterogeneity was found in the MRI sequences and in the quantitative methods used for BPE assessment. Conclusion: A wide variability exists in the quantitative evaluation of BPE on breast MRI. More studies focused on a reliable and comparable method for quantitative BPE assessment are needed. Advances in knowledge: More studies focused on a quantitative BPE assessment are needed. PMID:27925480

  15. [The methods within the evaluation of disease management programmes in control-group designs using the example of diabetes mellitus - a systematic literature review].

    PubMed

    Drabik, A; Sawicki, P T; Müller, D; Passon, A; Stock, S

    2012-08-01

    Disease management programmes (DMPs) were implemented in Germany in 2002. Their evaluation is required by law. Beyond the mandatory evaluation, a growing number of published studies evaluate the DMP for diabetes mellitus type 2 in a control-group design. As patients opt into the programme on a voluntary basis it is necessary to adjust the inherent selection bias between groups. The aim of this study is to review published studies which evaluate the diabetes DMP using a control-group design with respect to the methods used. A systematic literature review of electronic databases (PUBMED, Cochrane Library, EMBASE, MEDPILOT) and a hand search of reference lists of the relevant publications was conducted to identify studies evaluating the DMP diabetes mellitus in a control-group design. 8 studies were included in the systematic literature review. 4 studies gathered retrospective claims data from sickness funds, one from physician's records, one study used prospective data from ambulatory care, and 2 studies were based on one patient survey. Methods used for adjustment of selection bias included exact matching, matching using propensity score methods, age-adjusted and sex-separated analysis, and adjustment in a regression model/analysis of covariance. One study did not apply adjustment methods. The intervention period ranged from 1 day to 4 years. Considered outcomes of studies (surrogate parameter, diabetes complications, mortality, quality of life, and claim data) depended on the database. In the evaluation of the DMP diabetes mellitus based on a control-group design neither the database nor the methods used for selection bias adjustment were consistent in the available studies. Effectiveness of DMPs cannot be judged based on this review due to heterogeneity of study designs. To allow for a comprehensive programme evaluation standardised minimum requirements for the evaluation of DMPs in the control group design are required. © Georg Thieme Verlag KG Stuttgart · New York.

  16. A risk evaluation model and its application in online retailing trustfulness

    NASA Astrophysics Data System (ADS)

    Ye, Ruyi; Xu, Yingcheng

    2017-08-01

    Building a general model for risks evaluation in advance could improve the convenience, normality and comparability of the results of repeating risks evaluation in the case that the repeating risks evaluating are in the same area and for a similar purpose. One of the most convenient and common risks evaluation models is an index system including of several index, according weights and crediting method. One method to build a risk evaluation index system that guarantees the proportional relationship between the resulting credit and the expected risk loss is proposed and an application example is provided in online retailing in this article.

  17. Economic Evaluation alongside Multinational Studies: A Systematic Review of Empirical Studies

    PubMed Central

    Oppong, Raymond; Jowett, Sue; Roberts, Tracy E.

    2015-01-01

    Purpose of the study This study seeks to explore methods for conducting economic evaluations alongside multinational trials by conducting a systematic review of the methods used in practice and the challenges that are typically faced by the researchers who conducted the economic evaluations. Methods A review was conducted for the period 2002 to 2012, with potentially relevant articles identified by searching the Medline, Embase and NHS EED databases. Studies were included if they were full economic evaluations conducted alongside a multinational trial. Results A total of 44 studies out of a possible 2667 met the inclusion criteria. Methods used for the analyses varied between studies, indicating a lack of consensus on how economic evaluation alongside multinational studies should be carried out. The most common challenge appeared to be related to addressing differences between countries, which potentially hinders the generalisability and transferability of results. Other challenges reported included inadequate sample sizes and choosing cost-effectiveness thresholds. Conclusions It is recommended that additional guidelines be developed to aid researchers in this area and that these be based on an understanding of the challenges associated with multinational trials and the strengths and limitations of alternative approaches. Guidelines should focus on ensuring that results will aid decision makers in their individual countries. PMID:26121465

  18. Designing the National Assessment of Educational Progress to Serve a Wider Community of Users: A Position Paper.

    ERIC Educational Resources Information Center

    Bock, R. Darrell

    Efforts have been made to increase the dissemination and use of data generated by the National Assessment of Educational Progress (NAEP). Potential users include those concerned with curriculum and methods evaluation, public policymakers, and researchers. NAEP can provide data for curriculum evaluation, including item analysis data which assist in…

  19. An Evaluation of a Comprehensive Mentoring Program on Selected At-Risk Students with Specific School Problems

    ERIC Educational Resources Information Center

    Washington, Taren L.

    2015-01-01

    This study evaluated a comprehensive mentoring program on selected at-risk students with specific school problems (attendance, discipline referrals, and core area grades). The sample included youths in Grades 4-8 who differed on some characteristics including grade-level, ethnicity, and gender. For the purpose of this mixed methods study, the…

  20. Practice guidelines for program evaluation in community-based rehabilitation.

    PubMed

    Grandisson, Marie; Hébert, Michèle; Thibeault, Rachel

    2017-06-01

    This paper proposes practice guidelines to evaluate community-based rehabilitation (CBR) programs. These were developed through a rigorous three-phase research process including a literature review on good practices in CBR program evaluation, a field study during which a South Africa CBR program was evaluated, and a Delphi study to generate consensus among a highly credible panel of CBR experts from a wide range of backgrounds and geographical areas. The 10 guidelines developed are summarized into a practice model highlighting key features of sound CBR program evaluation. They strongly indicate that sound CBR evaluations are those that give a voice and as much control as possible to the most affected groups, embrace the challenge of diversity, and foster use of evaluation processes and findings through a rigorous, collaborative and empowering approach. The practice guidelines should facilitate CBR evaluation decisions in respect to facilitating an evaluation process, using frameworks and designing methods. Implications for rehabilitation Ten practice guidelines provide guidance to facilitate sound community-based rehabilitation (CBR) program evaluation decisions. Key indications of good practice include: • being as participatory and empowering as possible; • ensuring that all, including the most affected, have a real opportunity to share their thoughts; • highly considering mixed methods and participatory tools; • adapting to fit evaluation context, local culture and language(s); • defining evaluation questions and reporting findings using shared CBR language when possible, which the framework offered may facilitate.

  1. Monitoring and evaluation of patient involvement in clinical practice guideline development: lessons from the Multidisciplinary Guideline for Employment and Severe Mental Illness, the Netherlands.

    PubMed

    van der Ham, Alida J; van Erp, Nicole; Broerse, Jacqueline E W

    2016-04-01

    The aim of this study was to gain better insight into the quality of patient participation in the development of clinical practice guidelines and to contribute to approaches for the monitoring and evaluation of such initiatives. In addition, we explore the potential of a dialogue-based approach for reconciliation of preferences of patients and professionals in the guideline development processes. The development of the Multidisciplinary Guideline for Employment and Severe Mental Illness in the Netherlands served as a case study. Methods for patient involvement in guideline development included the following: four patient representatives in the development group and advisory committee, two focus group discussions with patients, a dialogue session and eight case studies. To evaluate the quality of patient involvement, we developed a monitoring and evaluation framework including both process and outcome criteria. Data collection included observations, document analysis and semi-structured interviews (n = 26). The quality of patient involvement was enhanced using different methods, reflection of patient input in the guideline text, a supportive attitude among professionals and attention to patient involvement throughout the process. The quality was lower with respect to representing the diversity of the target group, articulation of the patient perspective in the GDG, and clarity and transparency concerning methods of involvement. The monitoring and evaluation framework was useful in providing detailed insights into patient involvement in guideline development. Patient involvement was evaluated as being of good quality. The dialogue-based approach appears to be a promising method for obtaining integrated stakeholder input in a multidisciplinary setting. © 2015 John Wiley & Sons Ltd.

  2. Trends in Teacher Evaluation: What Every Special Education Teacher Should Know

    ERIC Educational Resources Information Center

    Benedict, Amber E; Thomas, Rachel A.; Kimerling, Jenna; Leko, Christopher

    2013-01-01

    The article reflects on current methods of teacher evaluation within the context of recent accountability policy, specifically No Child Left Behind. An overview is given of the most common forms of teacher evaluation, including performance evaluations, checklists, peer review, portfolios, the CEC and InTASC standards, the Charlotte Danielson…

  3. [Forensic medical evaluation of professional working capacity in victims, who needs additional care].

    PubMed

    Kapustin, A V; Tomilin, V V; Ol'khovnik, V P; Panfilenko, O A; Serebriakova, V G

    2000-01-01

    The philosophy of evaluating the need of a victim in extra care is discussed. The method for evaluating the need in transport vehicles for the victim is described in detail. Legislative documents which help solve such problems are cited, including those used by committees of forensic medical evaluations.

  4. The Organization and Functions of Research and Evaluation in a Large Urban School District.

    ERIC Educational Resources Information Center

    Webster, William J.

    The purpose, organization, and functions of research and evaluation in a large urban school district are discussed in light of several major issues in educational evaluation. Major issues include methods of assuring the credibility of evaluation information, the establishment and maintenance of meaningful reporting cycles, the recruitment and…

  5. Crescent Evaluation : appendix A : on-site analysis of HELP technologies and operations evaluation report

    DOT National Transportation Integrated Search

    1994-02-01

    This report describes the data collection procedures, the data analysis methods, and the results gained from the on-site evaluations. The content of the report is as follows: Chapter 2 - State Profiles. This chapter includes descriptions of the organ...

  6. Development of a Benchtop Baking Method for Chemically Leavened Crackers

    USDA-ARS?s Scientific Manuscript database

    Traditionally, the baking performance of soft wheat flours has been evaluated by well-established benchtop cookie-baking methods. In contrast, a benchtop cracker-baking method has not been widely explored or implemented as an official method, due to hurdles including the difficulty in finding ideal...

  7. Assessing the effects of employee assistance programs: a review of employee assistance program evaluations.

    PubMed

    Colantonio, A

    1989-01-01

    Employee assistance programs have grown at a dramatic rate, yet the effectiveness of these programs has been called into question. The purpose of this paper was to assess the effectiveness of employee assistance programs (EAPs) by reviewing recently published EAP evaluations. All studies evaluating EAPs published since 1975 from peer-reviewed journals in the English language were included in this analysis. Each of the articles was assessed in the following areas: (a) program description (subjects, setting, type of intervention, format), (b) evaluation design (research design, variables measured, operational methods), and (c) program outcomes. Results indicate numerous methodological and conceptual weaknesses and issues. These weaknesses included lack of controlled research designs and short time lags between pre- and post-test measures. Other problems identified are missing information regarding subjects, type of intervention, how variables are measured (operational methods), and reliability and validity of evaluation instruments. Due to the aforementioned weaknesses, positive outcomes could not be supported. Recommendations are made for future EAP evaluations.

  8. Assessing the effects of employee assistance programs: a review of employee assistance program evaluations.

    PubMed Central

    Colantonio, A.

    1989-01-01

    Employee assistance programs have grown at a dramatic rate, yet the effectiveness of these programs has been called into question. The purpose of this paper was to assess the effectiveness of employee assistance programs (EAPs) by reviewing recently published EAP evaluations. All studies evaluating EAPs published since 1975 from peer-reviewed journals in the English language were included in this analysis. Each of the articles was assessed in the following areas: (a) program description (subjects, setting, type of intervention, format), (b) evaluation design (research design, variables measured, operational methods), and (c) program outcomes. Results indicate numerous methodological and conceptual weaknesses and issues. These weaknesses included lack of controlled research designs and short time lags between pre- and post-test measures. Other problems identified are missing information regarding subjects, type of intervention, how variables are measured (operational methods), and reliability and validity of evaluation instruments. Due to the aforementioned weaknesses, positive outcomes could not be supported. Recommendations are made for future EAP evaluations. PMID:2728498

  9. Kidney function tests

    MedlinePlus

    Kidney function tests are common lab tests used to evaluate how well the kidneys are working. Such tests include: ... Oh MS, Briefel G. Evaluation of renal function, water, electrolytes ... and Management by Laboratory Methods . 23rd ed. Philadelphia, ...

  10. [Qualitative Research in Health Services Research - Discussion Paper, Part 3: Quality of Qualitative Research].

    PubMed

    Stamer, M; Güthlin, C; Holmberg, C; Karbach, U; Patzelt, C; Meyer, T

    2015-12-01

    The third and final discussion paper of the German Network of Health Services Research's (DNVF) "Qualitative Methods Working Group" demonstrates methods for the evaluation and quality of qualitative research in health services research. In this paper we discuss approaches described in evaluating qualitative studies, including: an orientation to the general principles of empirical research, an approach-specific course of action, as well as procedures based on the research-process and criteria-oriented approaches. Divided into general and specific aspects to be considered in a qualitative study quality evaluation, the central focus of the discussion paper undertakes an extensive examination of the process and criteria-oriented approaches. The general aspects include the participation of relevant groups in the research process as well as ethical aspects of the research and data protection issues. The more specific aspects in evaluating the quality of qualitative research include considerations about the research interest, research questions, and the selection of data collection methods and types of analyses. The formulated questions are intended to guide reviewers and researchers to evaluate and to develop qualitative research projects appropriately. The intention of this discussion paper is to ensure a transparent research culture, and to reflect on and discuss the methodological and research approach of qualitative studies in health services research. With this paper we aim to initiate a discussion on high quality evaluation of qualitative health services research. © Georg Thieme Verlag KG Stuttgart · New York.

  11. The evaluation of the abuse liability of drugs.

    PubMed

    Johanson, C E

    1990-01-01

    In order to place appropriate restrictions upon the availability of certain therapeutic agents to limit their abuse, it is important to assess abuse liability, an important aspect of drug safety evaluation. However, the negative consequences of restriction must also be considered. Drugs most likely to be tested are psychoactive compounds with therapeutic indications similar to known drugs of abuse. Methods include assays of pharmacological profile, drug discrimination procedures, self-administration procedures, and measures of drug-induced toxicity including evaluations of tolerance and physical dependence. Furthermore, the evaluation of toxicity using behavioural end-points is an important component of the assessment, and it is generally believed that the most valid procedure in this evaluation is the measurement of drug self-administration. However, even this method rarely predicts the extent of abuse of a specific drug. Although methods are available which appear to measure relative abuse liability, these procedures are not validated for all drug classes. Thus, additional strategies, including abuse liability studies in humans, modelled after those used with animals, must be used in order to make a more informed prediction. Although there is pressure to place restrictions on new drugs at the time of marketing, in light of the difficulty of predicting relative abuse potential, a better strategy might be to market a drug without restrictions, but require postmarketing surveillance in order to obtain more accurate information on which to base a final decision.

  12. CRITERIA FOR EVALUATION OF PROPOSED PROTOZOAN DETECTION METHODS

    EPA Science Inventory

    There has been a proliferation of techniques and methods reported for analysis of water samples to determine the presence of the protozoan pathogens Cryptosporidium parvum and Giardia lamblia. Many of the proposed methods are presented as complete procedures, which include sampli...

  13. CRITERIA FOR EVALUATION OF PROPOSED PROTOZOAN DETECTION METHODS.

    EPA Science Inventory

    There has been a proliferation of techniques and methods reported for analysis of water samples to determine the presence of the protozoan pathogens Cryptosporidium parvum and Giardia lamblia. Many of the proposed methods are presented as complete procedures, which include sampli...

  14. NORMALIZATION, GROUPING, AND WEIGHTING IN LIFE CYCLE IMPACT ASSESSMENT

    EPA Science Inventory

    This chapter includes a comprehensive overview of weighting methods and principles. The authors propose a very interesting and useful system of criteria for the evaluation of weighting methods; and provide a structured way to discuss the characteristics of weighting methods.

  15. Toward a standard for the evaluation of PET-Auto-Segmentation methods following the recommendations of AAPM task group No. 211: Requirements and implementation.

    PubMed

    Berthon, Beatrice; Spezi, Emiliano; Galavis, Paulina; Shepherd, Tony; Apte, Aditya; Hatt, Mathieu; Fayad, Hadi; De Bernardi, Elisabetta; Soffientini, Chiara D; Ross Schmidtlein, C; El Naqa, Issam; Jeraj, Robert; Lu, Wei; Das, Shiva; Zaidi, Habib; Mawlawi, Osama R; Visvikis, Dimitris; Lee, John A; Kirov, Assen S

    2017-08-01

    The aim of this paper is to define the requirements and describe the design and implementation of a standard benchmark tool for evaluation and validation of PET-auto-segmentation (PET-AS) algorithms. This work follows the recommendations of Task Group 211 (TG211) appointed by the American Association of Physicists in Medicine (AAPM). The recommendations published in the AAPM TG211 report were used to derive a set of required features and to guide the design and structure of a benchmarking software tool. These items included the selection of appropriate representative data and reference contours obtained from established approaches and the description of available metrics. The benchmark was designed in a way that it could be extendable by inclusion of bespoke segmentation methods, while maintaining its main purpose of being a standard testing platform for newly developed PET-AS methods. An example of implementation of the proposed framework, named PETASset, was built. In this work, a selection of PET-AS methods representing common approaches to PET image segmentation was evaluated within PETASset for the purpose of testing and demonstrating the capabilities of the software as a benchmark platform. A selection of clinical, physical, and simulated phantom data, including "best estimates" reference contours from macroscopic specimens, simulation template, and CT scans was built into the PETASset application database. Specific metrics such as Dice Similarity Coefficient (DSC), Positive Predictive Value (PPV), and Sensitivity (S), were included to allow the user to compare the results of any given PET-AS algorithm to the reference contours. In addition, a tool to generate structured reports on the evaluation of the performance of PET-AS algorithms against the reference contours was built. The variation of the metric agreement values with the reference contours across the PET-AS methods evaluated for demonstration were between 0.51 and 0.83, 0.44 and 0.86, and 0.61 and 1.00 for DSC, PPV, and the S metric, respectively. Examples of agreement limits were provided to show how the software could be used to evaluate a new algorithm against the existing state-of-the art. PETASset provides a platform that allows standardizing the evaluation and comparison of different PET-AS methods on a wide range of PET datasets. The developed platform will be available to users willing to evaluate their PET-AS methods and contribute with more evaluation datasets. © 2017 The Authors. Medical Physics published by Wiley Periodicals, Inc. on behalf of American Association of Physicists in Medicine.

  16. An evaluation of methods for estimating decadal stream loads

    NASA Astrophysics Data System (ADS)

    Lee, Casey J.; Hirsch, Robert M.; Schwarz, Gregory E.; Holtschlag, David J.; Preston, Stephen D.; Crawford, Charles G.; Vecchia, Aldo V.

    2016-11-01

    Effective management of water resources requires accurate information on the mass, or load of water-quality constituents transported from upstream watersheds to downstream receiving waters. Despite this need, no single method has been shown to consistently provide accurate load estimates among different water-quality constituents, sampling sites, and sampling regimes. We evaluate the accuracy of several load estimation methods across a broad range of sampling and environmental conditions. This analysis uses random sub-samples drawn from temporally-dense data sets of total nitrogen, total phosphorus, nitrate, and suspended-sediment concentration, and includes measurements of specific conductance which was used as a surrogate for dissolved solids concentration. Methods considered include linear interpolation and ratio estimators, regression-based methods historically employed by the U.S. Geological Survey, and newer flexible techniques including Weighted Regressions on Time, Season, and Discharge (WRTDS) and a generalized non-linear additive model. No single method is identified to have the greatest accuracy across all constituents, sites, and sampling scenarios. Most methods provide accurate estimates of specific conductance (used as a surrogate for total dissolved solids or specific major ions) and total nitrogen - lower accuracy is observed for the estimation of nitrate, total phosphorus and suspended sediment loads. Methods that allow for flexibility in the relation between concentration and flow conditions, specifically Beale's ratio estimator and WRTDS, exhibit greater estimation accuracy and lower bias. Evaluation of methods across simulated sampling scenarios indicate that (1) high-flow sampling is necessary to produce accurate load estimates, (2) extrapolation of sample data through time or across more extreme flow conditions reduces load estimate accuracy, and (3) WRTDS and methods that use a Kalman filter or smoothing to correct for departures between individual modeled and observed values benefit most from more frequent water-quality sampling.

  17. An evaluation of methods for estimating decadal stream loads

    USGS Publications Warehouse

    Lee, Casey; Hirsch, Robert M.; Schwarz, Gregory E.; Holtschlag, David J.; Preston, Stephen D.; Crawford, Charles G.; Vecchia, Aldo V.

    2016-01-01

    Effective management of water resources requires accurate information on the mass, or load of water-quality constituents transported from upstream watersheds to downstream receiving waters. Despite this need, no single method has been shown to consistently provide accurate load estimates among different water-quality constituents, sampling sites, and sampling regimes. We evaluate the accuracy of several load estimation methods across a broad range of sampling and environmental conditions. This analysis uses random sub-samples drawn from temporally-dense data sets of total nitrogen, total phosphorus, nitrate, and suspended-sediment concentration, and includes measurements of specific conductance which was used as a surrogate for dissolved solids concentration. Methods considered include linear interpolation and ratio estimators, regression-based methods historically employed by the U.S. Geological Survey, and newer flexible techniques including Weighted Regressions on Time, Season, and Discharge (WRTDS) and a generalized non-linear additive model. No single method is identified to have the greatest accuracy across all constituents, sites, and sampling scenarios. Most methods provide accurate estimates of specific conductance (used as a surrogate for total dissolved solids or specific major ions) and total nitrogen – lower accuracy is observed for the estimation of nitrate, total phosphorus and suspended sediment loads. Methods that allow for flexibility in the relation between concentration and flow conditions, specifically Beale’s ratio estimator and WRTDS, exhibit greater estimation accuracy and lower bias. Evaluation of methods across simulated sampling scenarios indicate that (1) high-flow sampling is necessary to produce accurate load estimates, (2) extrapolation of sample data through time or across more extreme flow conditions reduces load estimate accuracy, and (3) WRTDS and methods that use a Kalman filter or smoothing to correct for departures between individual modeled and observed values benefit most from more frequent water-quality sampling.

  18. Assessment methods for the evaluation of vitiligo.

    PubMed

    Alghamdi, K M; Kumar, A; Taïeb, A; Ezzedine, K

    2012-12-01

    There is no standardized method for assessing vitiligo. In this article, we review the literature from 1981 to 2011 on different vitiligo assessment methods. We aim to classify the techniques available for vitiligo assessment as subjective, semi-objective or objective; microscopic or macroscopic; and as based on morphometry or colorimetry. Macroscopic morphological measurements include visual assessment, photography in natural or ultraviolet light, photography with computerized image analysis and tristimulus colorimetry or spectrophotometry. Non-invasive micromorphological methods include confocal laser microscopy (CLM). Subjective methods include clinical evaluation by a dermatologist and a vitiligo disease activity score. Semi-objective methods include the Vitiligo Area Scoring Index (VASI) and point-counting methods. Objective methods include software-based image analysis, tristimulus colorimetry, spectrophotometry and CLM. Morphometry is the measurement of the vitiliginous surface area, whereas colorimetry quantitatively analyses skin colour changes caused by erythema or pigment. Most methods involve morphometry, except for the chromameter method, which assesses colorimetry. Some image analysis software programs can assess both morphometry and colorimetry. The details of these programs (Corel Draw, Image Pro Plus, AutoCad and Photoshop) are discussed in the review. Reflectance confocal microscopy provides real-time images and has great potential for the non-invasive assessment of pigmentary lesions. In conclusion, there is no single best method for assessing vitiligo. This review revealed that VASI, the rule of nine and Wood's lamp are likely to be the best techniques available for assessing the degree of pigmentary lesions and measuring the extent and progression of vitiligo in the clinic and in clinical trials. © 2012 The Authors. Journal of the European Academy of Dermatology and Venereology © 2012 European Academy of Dermatology and Venereology.

  19. The Teaching of General Solution Methods to Pattern Finding Problems through Focusing on an Evaluation and Improvement Process.

    ERIC Educational Resources Information Center

    Ishida, Junichi

    1997-01-01

    Examines the effects of a teaching strategy in which fifth-grade students evaluated the strengths or weaknesses of solution methods to pattern finding problems, including an experimental and control group each consisting of 34 elementary students, in Japan. The experimental group showed a significantly better performance on the retention test…

  20. Research and development of a field-ready protocol for sampling of phosgene from stationary source emissions: Diethylamine reagent studies. Research report, 11 July 1995--30 September 1996

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Steger, J.L.; Bursey, J.T.; Merrill, R.G.

    1999-03-01

    This report presents the results of laboratory studies to develop and evaluate a method for the sampling and analysis of phosgene from stationary sources of air emissions using diethylamine (DEA) in toluene as the collection media. The method extracts stack gas from emission sources and stabilizes the reactive gas for subsequent analysis. DEA was evaluated both in a benchtop study and in a laboratory train spiking study. This report includes results for both the benchtop study and the train spiking study. Benchtop studies to evaluate the suitability of DEA for collecting and analyzing phosgene investigated five variables: storage time, DEAmore » concentration, moisture/pH, phosgene concentration, and sample storage temperature. Prototype sampling train studies were performed to determine if the benchtop chemical studies were transferable to a Modified Method 5 sampling train collecting phosgene in the presence of clean air mixed with typical stack gas components. Four conditions, which varied the moisture and phosgene spike were evaluated in triplicate. In addition to research results, the report includes a detailed draft method for sampling and analysis of phosgene from stationary source emissions.« less

  1. Force Evaluation in the Lattice Boltzmann Method Involving Curved Geometry

    NASA Technical Reports Server (NTRS)

    Mei, Renwei; Yu, Dazhi; Shyy, Wei; Luo, Li-Shi; Bushnell, Dennis M. (Technical Monitor)

    2002-01-01

    The present work investigates two approaches for force evaluation in the lattice Boltzmann equation: the momentum- exchange method and the stress-integration method on the surface of a body. The boundary condition for the particle distribution functions on curved geometries is handled with second order accuracy based on our recent works. The stress-integration method is computationally laborious for two-dimensional flows and in general difficult to implement for three-dimensional flows, while the momentum-exchange method is reliable, accurate, and easy to implement for both two-dimensional and three-dimensional flows. Several test cases are selected to evaluate the present methods, including: (i) two-dimensional pressure-driven channel flow; (ii) two-dimensional uniform flow past a column of cylinders; (iii) two-dimensional flow past a cylinder asymmetrically placed in a channel (with vortex shedding); (iv) three-dimensional pressure-driven flow in a circular pipe; and (v) three-dimensional flow past a sphere. The drag evaluated by using the momentum-exchange method agrees well with the exact or other published results.

  2. Development of a Nationally Coordinated Evaluation Plan for the Ghana National Strategy for Key Populations

    PubMed Central

    Reynolds, Heidi W; Atuahene, Kyeremeh; Sutherland, Elizabeth; Amenyah, Richard; Kwao, Isaiah Doe; Larbi, Emmanuel Tettey

    2015-01-01

    Objective Just as HIV prevention programs need to be tailored to the local epidemic, so should evaluations be country-owned and country-led to ensure use of those results in decision making and policy. The objective of this paper is to describe the process undertaken in Ghana to develop a national evaluation plan for the Ghana national strategy for key populations. Methods This was a participatory process that involved meetings between the Ghana AIDS Commission (GAC), other partners in Ghana working to prevent HIV among key populations, and MEASURE Evaluation. The process included three two-day, highly structured yet participatory meetings over the course of 12 months during which participants shared information about on-going and planned data and identified research questions and methods. Results An evaluation plan was prepared to inform stakeholders about which data collection activities need to be prioritized for funding, who would implement the study, the timing of data collection, the research question the data will help answer, and the analysis methods. The plan discusses various methods that can be used including the recommendation for the study design using multiple data sources. It has an evaluation conceptual model, proposed analyses, proposed definition of independent variables, estimated costs for filling data gaps, roles and responsibilities of stakeholders to carry out the plan, and considerations for ethics, data sharing and authorship. Conclusion The experience demonstrates that it is possible to design an evaluation responsive to national strategies and priorities with country leadership, regardless of stakeholders' experiences with evaluations. This process may be replicable elsewhere, where stakeholders want to plan and implement an evaluation of a large-scale program at the national or subnational level that is responsive to national priorities and part of a comprehensive monitoring and evaluation system. PMID:26120495

  3. Impact of including or excluding both-armed zero-event studies on using standard meta-analysis methods for rare event outcome: a simulation study

    PubMed Central

    Cheng, Ji; Pullenayegum, Eleanor; Marshall, John K; Thabane, Lehana

    2016-01-01

    Objectives There is no consensus on whether studies with no observed events in the treatment and control arms, the so-called both-armed zero-event studies, should be included in a meta-analysis of randomised controlled trials (RCTs). Current analytic approaches handled them differently depending on the choice of effect measures and authors' discretion. Our objective is to evaluate the impact of including or excluding both-armed zero-event (BA0E) studies in meta-analysis of RCTs with rare outcome events through a simulation study. Method We simulated 2500 data sets for different scenarios varying the parameters of baseline event rate, treatment effect and number of patients in each trial, and between-study variance. We evaluated the performance of commonly used pooling methods in classical meta-analysis—namely, Peto, Mantel-Haenszel with fixed-effects and random-effects models, and inverse variance method with fixed-effects and random-effects models—using bias, root mean square error, length of 95% CI and coverage. Results The overall performance of the approaches of including or excluding BA0E studies in meta-analysis varied according to the magnitude of true treatment effect. Including BA0E studies introduced very little bias, decreased mean square error, narrowed the 95% CI and increased the coverage when no true treatment effect existed. However, when a true treatment effect existed, the estimates from the approach of excluding BA0E studies led to smaller bias than including them. Among all evaluated methods, the Peto method excluding BA0E studies gave the least biased results when a true treatment effect existed. Conclusions We recommend including BA0E studies when treatment effects are unlikely, but excluding them when there is a decisive treatment effect. Providing results of including and excluding BA0E studies to assess the robustness of the pooled estimated effect is a sensible way to communicate the results of a meta-analysis when the treatment effects are unclear. PMID:27531725

  4. Automatic detection of wheezes by evaluation of multiple acoustic feature extraction methods and C-weighted SVM

    NASA Astrophysics Data System (ADS)

    Sosa, Germán. D.; Cruz-Roa, Angel; González, Fabio A.

    2015-01-01

    This work addresses the problem of lung sound classification, in particular, the problem of distinguishing between wheeze and normal sounds. Wheezing sound detection is an important step to associate lung sounds with an abnormal state of the respiratory system, usually associated with tuberculosis or another chronic obstructive pulmonary diseases (COPD). The paper presents an approach for automatic lung sound classification, which uses different state-of-the-art sound features in combination with a C-weighted support vector machine (SVM) classifier that works better for unbalanced data. Feature extraction methods used here are commonly applied in speech recognition and related problems thanks to the fact that they capture the most informative spectral content from the original signals. The evaluated methods were: Fourier transform (FT), wavelet decomposition using Wavelet Packet Transform bank of filters (WPT) and Mel Frequency Cepstral Coefficients (MFCC). For comparison, we evaluated and contrasted the proposed approach against previous works using different combination of features and/or classifiers. The different methods were evaluated on a set of lung sounds including normal and wheezing sounds. A leave-two-out per-case cross-validation approach was used, which, in each fold, chooses as validation set a couple of cases, one including normal sounds and the other including wheezing sounds. Experimental results were reported in terms of traditional classification performance measures: sensitivity, specificity and balanced accuracy. Our best results using the suggested approach, C-weighted SVM and MFCC, achieve a 82.1% of balanced accuracy obtaining the best result for this problem until now. These results suggest that supervised classifiers based on kernel methods are able to learn better models for this challenging classification problem even using the same feature extraction methods.

  5. A Teacher's Guide to Memory Techniques.

    ERIC Educational Resources Information Center

    Hodges, Daniel L.

    1982-01-01

    To aid instructors in teaching their students to use effective methods of memorization, this article outlines major memory methods, provides examples of their use, evaluates the methods, and discusses ways students can be taught to apply them. First, common, but less effective, memory methods are presented, including reading and re-reading…

  6. Coptidis rhizoma and its main bioactive components: recent advances in chemical investigation, quality evaluation and pharmacological activity.

    PubMed

    Meng, Fan-Cheng; Wu, Zheng-Feng; Yin, Zhi-Qi; Lin, Li-Gen; Wang, Ruibing; Zhang, Qing-Wen

    2018-01-01

    Coptidis rhizoma (CR) is the dried rhizome of Coptis chinensis Franch., C. deltoidea C. Y. Cheng et Hsiao or C. teeta Wall. (Ranunculaceae) and is commonly used in Traditional Chinese Medicine for the treatment of various diseases including bacillary dysentery, typhoid, tuberculosis, epidemic cerebrospinal meningitis, empyrosis, pertussis, and other illnesses. A literature survey was conducted via SciFinder, ScieneDirect, PubMed, Springer, and Wiley databases. A total of 139 selected references were classified on the basis of their research scopes, including chemical investigation, quality evaluation and pharmacological studies. Many types of secondary metabolites including alkaloids, lignans, phenylpropanoids, flavonoids, phenolic compounds, saccharides, and steroids have been isolated from CR. Among them, protoberberine-type alkaloids, such as berberine, palmatine, coptisine, epiberberine, jatrorrhizine, columamine, are the main components of CR. Quantitative determination of these alkaloids is a very important aspect in the quality evaluation of CR. In recent years, with the advances in isolation and detection technologies, many new instruments and methods have been developed for the quantitative and qualitative analysis of the main alkaloids from CR. The quality control of CR has provided safety for pharmacological applications. These quality evaluation methods are also frequently employed to screen the active components from CR. Various investigations have shown that CR and its main alkaloids exhibited many powerful pharmacological effects including anti-inflammatory, anti-cancer, anti-diabetic, neuroprotective, cardioprotective, hypoglycemic, anti-Alzheimer and hepatoprotective activities. This review summarizes the recent phytochemical investigations, quality evaluation methods, the biological studies focusing on CR as well as its main alkaloids.

  7. Competencies Used to Evaluate High School Coaches.

    ERIC Educational Resources Information Center

    Gratto, John

    1983-01-01

    Studies of how to evaluate high school coaches' effectiveness found that most respondents felt that principals, athletic directors, and coaches should jointly arrive at a method of evaluation. Coaching competencies rated most highly included prevention and care of athletic injuries, supervision, and consistent discipline. Other valued competencies…

  8. Choosing a CD-ROM Encyclopedia: How to Critically Evaluate the Product.

    ERIC Educational Resources Information Center

    Dickinson, Gail

    1990-01-01

    Offers criteria for the critical evaluation of CD-ROM encyclopedias. Differences between CD-ROM and print encyclopedias are discussed; search strategies are explained; evaluation criteria are suggested, including help messages, screen format, indexing method, and graphics and print options; future considerations are suggested, including…

  9. Library Design Analysis Using Post-Occupancy Evaluation Methods.

    ERIC Educational Resources Information Center

    James, Dennis C.; Stewart, Sharon L.

    1995-01-01

    Presents findings of a user-based study of the interior of Rodger's Science and Engineering Library at the University of Alabama. Compared facility evaluations from faculty, library staff, and graduate and undergraduate students. Features evaluated include: acoustics, aesthetics, book stacks, design, finishes/materials, furniture, lighting,…

  10. Fracture control methods for space vehicles. Volume 1: Fracture control design methods. [for space shuttle configuration planning

    NASA Technical Reports Server (NTRS)

    Liu, A. F.

    1974-01-01

    A systematic approach for applying methods for fracture control in the structural components of space vehicles consists of four major steps. The first step is to define the primary load-carrying structural elements and the type of load, environment, and design stress levels acting upon them. The second step is to identify the potential fracture-critical parts by means of a selection logic flow diagram. The third step is to evaluate the safe-life and fail-safe capabilities of the specified part. The last step in the sequence is to apply the control procedures that will prevent damage to the fracture-critical parts. The fracture control methods discussed include fatigue design and analysis methods, methods for preventing crack-like defects, fracture mechanics analysis methods, and nondestructive evaluation methods. An example problem is presented for evaluation of the safe-crack-growth capability of the space shuttle crew compartment skin structure.

  11. NERC Policy 10: Measurement of two generation and load balancing IOS

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Spicer, P.J.; Galow, G.G.

    1999-11-01

    Policy 10 will describe specific standards and metrics for most of the reliability functions described in the Interconnected Operations Services Working Group (IOS WG) report. The purpose of this paper is to discuss, in detail, the proposed metrics for two generation and load balancing IOSs: Regulation; Load Following. For purposes of this paper, metrics include both measurement and performance evaluation. The measurement methods discussed are included in the current draft of the proposed Policy 10. The performance evaluation method discussed is offered by the authors for consideration by the IOS ITF (Implementation Task Force) for inclusion into Policy 10.

  12. Evaluation of alternative snowplowable markers and snowplowing procedures.

    DOT National Transportation Integrated Search

    2013-06-01

    The objectives of this study were to investigate viable alternatives to the currently approved snowplowable raised pavement marker and alternative methods and equipment used to snowplow roadways. The study included evaluating any potential durable an...

  13. Standardizing the evaluation criteria on treatment outcomes of mandibular implant overdentures: a systematic review

    PubMed Central

    Kim, Ha-Young; Shin, Sang-Wan

    2014-01-01

    PURPOSE The aim of this review was to analyze the evaluation criteria on mandibular implant overdentures through a systematic review and suggest standardized evaluation criteria. MATERIALS AND METHODS A systematic literature search was conducted by PubMed search strategy and hand-searching of relevant journals from included studies considering inclusion and exclusion criteria. Randomized clinical trials (RCT) and clinical trial studies comparing attachment systems on mandibular implant overdentures until December, 2011 were selected. Twenty nine studies were finally selected and the data about evaluation methods were collected. RESULTS Evaluation criteria could be classified into 4 groups (implant survival, peri-implant tissue evaluation, prosthetic evaluation, and patient satisfaction). Among 29 studies, 21 studies presented implant survival rate, while any studies reporting implant failure did not present cumulative implant survival rate. Seventeen studies evaluating peri-implant tissue status presented following items as evaluation criteria; marginal bone level (14), plaque Index (13), probing depth (8), bleeding index (8), attachment gingiva level (8), gingival index (6), amount of keratinized gingiva (1). Eighteen studies evaluating prosthetic maintenance and complication also presented following items as evaluation criteria; loose matrix (17), female detachment (15), denture fracture (15), denture relining (14), abutment fracture (14), abutment screw loosening (11), and occlusal adjustment (9). Atypical questionnaire (9), Visual analog scales (VAS) (4), and Oral Health Impact Profile (OHIP) (1) were used as the format of criteria to evaluate patients satisfaction in 14 studies. CONCLUSION For evaluation of implant overdenture, it is necessary to include cumulative survival rate for implant evaluation. It is suggested that peri-implant tissue evaluation criteria include marginal bone level, plaque index, bleeding index, probing depth, and attached gingiva level. It is also suggested that prosthetic evaluation criteria include loose matrix, female detachment, denture fracture, denture relining, abutment fracture, abutment screw loosening, and occlusal adjustment. Finally standardized criteria like OHIP-EDENT or VAS are required for patient satisfaction. PMID:25352954

  14. Interagency comparison of iodometric methods for ozone determination

    NASA Technical Reports Server (NTRS)

    Demore, W. B.; Romanovsky, J. C.; Feldstein, M.; Mueller, P. K.; Hamming, W. J.

    1976-01-01

    The California Air Resources Board appointed an Oxidant Calibration Committee for the purpose of evaluating the accuracy of the different agency calibration procedures. The committee chose UV absorption photometry as the reference method for ozone measurement. Interagency comparisons of the various iodometric methods were conducted relative to the ultraviolet standard. The tests included versions of the iodometric methods as employed by the Air Resources Board, the Los Angeles Air Pollution Control District, and the EPA. An alternative candidate reference method for ozone measurement, gas phase titration, was also included in the test series.

  15. Stripping in HMA Mixtures: State of the Art and Critical Review of Test Methods

    DOT National Transportation Integrated Search

    1988-09-01

    This report presents review summaries of the state-of-the-art regarding stripping in hot mix asphalt (HMA) mixtures. The review stresses efforts concerned with methods development, evaluation and presents a critical review of select methods including...

  16. Usability in telemedicine systems-A literature survey.

    PubMed

    Klaassen, B; van Beijnum, B J F; Hermens, H J

    2016-09-01

    The rapid development of sensors and communication technologies enable the growth of new innovative services in healthcare, such as Telemedicine. An essential ingredient in the development of a telemedicine system and its final acceptance by end users are usability studies. The principles of usability engineering, evaluations and telemedicine are well established, and it may contribute to the adoption and eventually deployment of such systems and services. An in-depth usability analysis, including performance and attitude measures, requires knowledge about available usability techniques, and is depending on the amount of resources. Therefore it is worth investigating how usability methods are applied in developing telemedicine systems. Our hypothesis is: with increasing research and development of telemedicine systems, we expect that various usability methods are more equally employed for different end-user groups and applications. A literature survey was conducted to find telemedicine systems that have been evaluated for usability or ease of use. The elements of the PICO framework were used as a basis for the selection criteria in the literature search. The search was not limited by year. Two independent reviewers screened all search results first by title, and then by abstract for inclusion. Articles were included up to May 2015. In total, 127 publications were included in this survey. The number of publications on telemedicine systems significantly increased after 2008. Older adults and end-users with cardiovascular conditions were among largest target end-user groups. Remote monitoring systems were found the most, in 90 publications. Questionnaires are the most common means for evaluating telemedicine systems, and were found in 88 publications. Questionnaires are used frequently in studies focusing on cardiovascular diseases, Parkinson's disease and older adult conditions. Interviews are found the most in publications related to stroke. In total 71% of the publications were trial-orientated and the remaining process orientated. An increase in telemedicine research, development and applications is found worldwide, with the majority of publications conducted in America. Monitoring patients in their homes can lead to better healthcare at lower costs which implies an increased demand of new healthcare strategies like telemedicine. We expected that with the increase in telemedicine research and development, a greater range of usability methods would also be employed in the included publications. This is not the case. Researchers employed questionnaires as a preferred usability method for each type of telemedicine system and most end-users. However, in process-orientated studies a greater range of usability evaluations were applied, with fewer differences found in the amount of publications for each evaluation method. Questionnaires enable researchers to evaluate a system quickly on end users, as it requires less expertise on the evaluation method compared to the other methods. They are easily distributed and are customizable. The use of questionnaires is therefore an evaluation method of choice for a variety of telemedicine systems and end-users. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  17. Evaluation of Carbon Anodes for Rechargeable Lithium Cells

    NASA Technical Reports Server (NTRS)

    Huang, C-K.; Surampudi, S.; Attia, A.; Halpert, G.

    1993-01-01

    Both liquid phase intercalation technique and electrochemical intercalation technique were examined for the Li-carbon material preparation. The electrochemical techniques include a intermittent discharge method and a two step method. These two electrochemical techniques can ensure to achieve the maximum reversible Li capacity for common commercially available carbon materials. The carbon materials evaluated by the intercalacation method includes: pitch coke, petroleum cole, PAN fiber and graphite materials. Their reversible Li capacity were determined and compared. In this paper, we also demonstrate the importance of EPDM binder composition in the carbon electrode. Our results indicated that it can impact the Li intercalation and de-intercalation capacity in carbon materials. Finally, two possibilities that may help explain the capacity degradation during practical cell cycling were proposed.

  18. DDOT MXD+ method development report.

    DOT National Transportation Integrated Search

    2015-09-01

    Mixed-use development has become increasingly common across the country, including Washington, D.C. : However, a straightforward and empirically validated method for evaluating the traffic impacts of such : projects is still needed. The data presente...

  19. Research Methods Tutor: evaluation of a dialogue-based tutoring system in the classroom.

    PubMed

    Arnott, Elizabeth; Hastings, Peter; Allbritton, David

    2008-08-01

    Research Methods Tutor (RMT) is a dialogue-based intelligent tutoring system for use in conjunction with undergraduate psychology research methods courses. RMT includes five topics that correspond to the curriculum of introductory research methods courses: ethics, variables, reliability, validity, and experimental design. We evaluated the effectiveness of the RMT system in the classroom using a nonequivalent control group design. Students in three classes (n = 83) used RMT, and students in two classes (n = 53) did not use RMT. Results indicated that the use of RMT yieldedstrong learning gains of 0.75 standard deviations above classroom instruction alone. Further, the dialogue-based tutoring condition of the system resulted in higher gains than did the textbook-style condition (CAI version) of the system. Future directions for RMT include the addition of new topics and tutoring elements.

  20. Reliable clarity automatic-evaluation method for optical remote sensing images

    NASA Astrophysics Data System (ADS)

    Qin, Bangyong; Shang, Ren; Li, Shengyang; Hei, Baoqin; Liu, Zhiwen

    2015-10-01

    Image clarity, which reflects the sharpness degree at the edge of objects in images, is an important quality evaluate index for optical remote sensing images. Scholars at home and abroad have done a lot of work on estimation of image clarity. At present, common clarity-estimation methods for digital images mainly include frequency-domain function methods, statistical parametric methods, gradient function methods and edge acutance methods. Frequency-domain function method is an accurate clarity-measure approach. However, its calculation process is complicate and cannot be carried out automatically. Statistical parametric methods and gradient function methods are both sensitive to clarity of images, while their results are easy to be affected by the complex degree of images. Edge acutance method is an effective approach for clarity estimate, while it needs picking out the edges manually. Due to the limits in accuracy, consistent or automation, these existing methods are not applicable to quality evaluation of optical remote sensing images. In this article, a new clarity-evaluation method, which is based on the principle of edge acutance algorithm, is proposed. In the new method, edge detection algorithm and gradient search algorithm are adopted to automatically search the object edges in images. Moreover, The calculation algorithm for edge sharpness has been improved. The new method has been tested with several groups of optical remote sensing images. Compared with the existing automatic evaluation methods, the new method perform better both in accuracy and consistency. Thus, the new method is an effective clarity evaluation method for optical remote sensing images.

  1. Systematic evaluation of non-animal test methods for skin sensitisation safety assessment.

    PubMed

    Reisinger, Kerstin; Hoffmann, Sebastian; Alépée, Nathalie; Ashikaga, Takao; Barroso, Joao; Elcombe, Cliff; Gellatly, Nicola; Galbiati, Valentina; Gibbs, Susan; Groux, Hervé; Hibatallah, Jalila; Keller, Donald; Kern, Petra; Klaric, Martina; Kolle, Susanne; Kuehnl, Jochen; Lambrechts, Nathalie; Lindstedt, Malin; Millet, Marion; Martinozzi-Teissier, Silvia; Natsch, Andreas; Petersohn, Dirk; Pike, Ian; Sakaguchi, Hitoshi; Schepky, Andreas; Tailhardat, Magalie; Templier, Marie; van Vliet, Erwin; Maxwell, Gavin

    2015-02-01

    The need for non-animal data to assess skin sensitisation properties of substances, especially cosmetics ingredients, has spawned the development of many in vitro methods. As it is widely believed that no single method can provide a solution, the Cosmetics Europe Skin Tolerance Task Force has defined a three-phase framework for the development of a non-animal testing strategy for skin sensitization potency prediction. The results of the first phase – systematic evaluation of 16 test methods – are presented here. This evaluation involved generation of data on a common set of ten substances in all methods and systematic collation of information including the level of standardisation, existing test data,potential for throughput, transferability and accessibility in cooperation with the test method developers.A workshop was held with the test method developers to review the outcome of this evaluation and to discuss the results. The evaluation informed the prioritisation of test methods for the next phase of the non-animal testing strategy development framework. Ultimately, the testing strategy – combined with bioavailability and skin metabolism data and exposure consideration – is envisaged to allow establishment of a data integration approach for skin sensitisation safety assessment of cosmetic ingredients.

  2. The Utility of Pitch Elevation in the Evaluation of Oropharyngeal Dysphagia: Preliminary Findings

    ERIC Educational Resources Information Center

    Malandraki, Georgia A.; Hind, Jacqueline A.; Gangnon, Ronald; Logemann, Jeri A.; Robbins, JoAnne

    2011-01-01

    Purpose: To evaluate the utility of a pitch elevation task in the assessment of oropharyngeal dysphagia. Method: This study was a pilot prospective cohort study including 40 consecutive patients (16 male and 24 female) who were referred by their physician for a swallowing evaluation. Patients were evaluated with a noninstrumental clinical…

  3. Expediting the Analysis of Qualitative Data in Evaluation: A Procedure for the Rapid Identification of Themes from Audio Recordings (RITA)

    ERIC Educational Resources Information Center

    Neal, Jennifer Watling; Neal, Zachary P.; VanDyke, Erika; Kornbluh, Mariah

    2015-01-01

    Qualitative data offer advantages to evaluators, including rich information about stakeholders' perspectives and experiences. However, qualitative data analysis is labor-intensive and slow, conflicting with evaluators' needs to provide punctual feedback to their clients. In this method note, we contribute to the literature on rapid evaluation and…

  4. Economic Evaluation of Obesity Prevention in Early Childhood: Methods, Limitations and Recommendations.

    PubMed

    Döring, Nora; Mayer, Susanne; Rasmussen, Finn; Sonntag, Diana

    2016-09-13

    Despite methodological advances in the field of economic evaluations of interventions, economic evaluations of obesity prevention programmes in early childhood are seldom conducted. The aim of the present study was to explore existing methods and applications of economic evaluations, examining their limitations and making recommendations for future cost-effectiveness assessments. A systematic literature search was conducted using PubMed, Cochrane Library, the British National Health Service Economic Evaluation Databases and EconLit. Eligible studies included trial-based or simulation-based cost-effectiveness analyses of obesity prevention programmes targeting preschool children and/or their parents. The quality of included studies was assessed. Of the six studies included, five were intervention studies and one was based on a simulation approach conducted on secondary data. We identified three main conceptual and methodological limitations of their economic evaluations: Insufficient conceptual approach considering the complexity of childhood obesity, inadequate measurement of effects of interventions, and lack of valid instruments to measure child-related quality of life and costs. Despite the need for economic evaluations of obesity prevention programmes in early childhood, only a few studies of varying quality have been conducted. Moreover, due to methodological and conceptual weaknesses, they offer only limited information for policy makers and intervention providers. We elaborate reasons for the limitations of these studies and offer guidance for designing better economic evaluations of early obesity prevention.

  5. Economic Evaluation of Obesity Prevention in Early Childhood: Methods, Limitations and Recommendations

    PubMed Central

    Döring, Nora; Mayer, Susanne; Rasmussen, Finn; Sonntag, Diana

    2016-01-01

    Despite methodological advances in the field of economic evaluations of interventions, economic evaluations of obesity prevention programmes in early childhood are seldom conducted. The aim of the present study was to explore existing methods and applications of economic evaluations, examining their limitations and making recommendations for future cost-effectiveness assessments. A systematic literature search was conducted using PubMed, Cochrane Library, the British National Health Service Economic Evaluation Databases and EconLit. Eligible studies included trial-based or simulation-based cost-effectiveness analyses of obesity prevention programmes targeting preschool children and/or their parents. The quality of included studies was assessed. Of the six studies included, five were intervention studies and one was based on a simulation approach conducted on secondary data. We identified three main conceptual and methodological limitations of their economic evaluations: Insufficient conceptual approach considering the complexity of childhood obesity, inadequate measurement of effects of interventions, and lack of valid instruments to measure child-related quality of life and costs. Despite the need for economic evaluations of obesity prevention programmes in early childhood, only a few studies of varying quality have been conducted. Moreover, due to methodological and conceptual weaknesses, they offer only limited information for policy makers and intervention providers. We elaborate reasons for the limitations of these studies and offer guidance for designing better economic evaluations of early obesity prevention. PMID:27649218

  6. Laser Lights or Dim Bulbs? Evaluating Reference Librarians' Use of Electronic Sources.

    ERIC Educational Resources Information Center

    Welch, Jeanie M.

    1999-01-01

    Discusses the evaluation of academic library reference librarians' effectiveness in providing services to patrons using electronic sources based on experiences at the University of North Carolina at Charlotte. Topics include core technical competencies for subject specialists and reference desk service; the Internet; and methods of evaluation.…

  7. Connecting Theory to Practice: Evaluating a Brain-Based Writing Curriculum

    ERIC Educational Resources Information Center

    Griffee, Dale T.

    2007-01-01

    This 10 week longitudinal evaluation study evaluated a brain-based learning curriculum proposed by Smilkstein (2003) by comparing student performance in a traditional basic writing curriculum with NHLP-oriented basic writing curriculum. The study included two classes each of experimental and traditional methods. Results of the data, gathered by…

  8. Use of Electronic Surveys in Course Evaluation.

    ERIC Educational Resources Information Center

    Moss, Jaclyn; Hendry, Graham

    2002-01-01

    Reviews evidence for the effectiveness of electronic surveys as evaluation methods for electronic courses and discusses issues in email and Web survey methodologies. Describes the successful use of Web-based surveys in the evaluation system of the University of Sydney Medical Program and includes recommendations for online survey use in course…

  9. Qualitative Approaches to Evaluating Education.

    ERIC Educational Resources Information Center

    Fetterman, David M.

    This paper explores the variety of qualitative methods available, in the context of a larger quantitative-qualitative debate in the field of educational evaluation. Each approach is reviewed in terms of the work of its major proponents. The dominant forms of qualitative evaluation include: (1) ethnography; (2) naturalistic inquiry; (3) generic…

  10. A Program Evaluation of a Leadership Academy for School Principals

    ERIC Educational Resources Information Center

    Wagner, Kristi E.

    2014-01-01

    This program evaluation focused on mid-range outcomes of a leadership academy for school principals. The mixed-methods evaluation included interviews, principals' instructional observation database, and teacher surveys. The Principal Academy program was designed to build principals' knowledge of high-yield instructional strategies (Hattie, 2009),…

  11. National Institutes of Health Pathways to Prevention Workshop: Methods for Evaluating Natural Experiments in Obesity.

    PubMed

    Emmons, Karen M; Doubeni, Chyke A; Fernandez, Maria E; Miglioretti, Diana L; Samet, Jonathan M

    2018-06-05

    On 5 and 6 December 2017, the National Institutes of Health (NIH) convened the Pathways to Prevention Workshop: Methods for Evaluating Natural Experiments in Obesity to identify the status of methods for assessing natural experiments to reduce obesity, areas in which these methods could be improved, and research needs for advancing the field. This article considers findings from a systematic evidence review on methods for evaluating natural experiments in obesity, workshop presentations by experts and stakeholders, and public comment. Research gaps are identified, and recommendations related to 4 key issues are provided. Recommendations on population-based data sources and data integration include maximizing use and sharing of existing surveillance and research databases and ensuring significant effort to integrate and link databases. Recommendations on measurement include use of standardized and validated measures of obesity-related outcomes and exposures, systematic measurement of co-benefits and unintended consequences, and expanded use of validated technologies for measurement. Study design recommendations include improving guidance, documentation, and communication about methods used; increasing use of designs that minimize bias in natural experiments; and more carefully selecting control groups. Cross-cutting recommendations target activities that the NIH and other funders might undertake to improve the rigor of natural experiments in obesity, including training and collaboration on modeling and causal inference, promoting the importance of community engagement in the conduct of natural experiments, ensuring maintenance of relevant surveillance systems, and supporting extended follow-up assessments for exemplar natural experiments. To combat the significant public health threat posed by obesity, researchers should continue to take advantage of natural experiments. The recommendations in this report aim to strengthen evidence from such studies.

  12. Importance and usefulness of evaluating self-esteem in children.

    PubMed

    Hosogi, Mizuho; Okada, Ayumi; Fujii, Chikako; Noguchi, Keizou; Watanabe, Kumi

    2012-03-20

    Self-esteem is the "feeling of self-appreciation" and is an indispensable emotion for people to adapt to society and live their lives. For children, in particular, the environment in which they are raised contributes profoundly to the development of their self-esteem, which in turn helps them to adapt better to society. Various psychologists have provided definitions of self-esteem, and examined methods of objectively evaluating self-esteem. Questionnaire-style assessment methods for adult include Rosenberg Self-Esteem Scale and Janis-Field Feeling of Inadequacy Scale, and these for children include Coopersmith Self-Esteem Inventory, Pope's 5-Scale Test of Self-Esteem for children, and Kid- KINDL®. Other methods include Ziller Social Self-Esteem Scale and Implicit Association Test. The development of children's self-esteem is heavily influenced by their environment, that is, their homes, neighborhoods, and schools. Children with damaged self-esteem are at risk of developing psychological and social problems, which hinders recovery from low self-esteem. Thus, to recover low self-esteem, it is important for children to accumulate a series of successful experiences to create a positive concept of self. Evaluating children's self-esteem can be an effective method for understanding their past and present circumstances, and useful to treat for children with psychosomatic disorders.

  13. Deterministic object tracking using Gaussian ringlet and directional edge features

    NASA Astrophysics Data System (ADS)

    Krieger, Evan W.; Sidike, Paheding; Aspiras, Theus; Asari, Vijayan K.

    2017-10-01

    Challenges currently existing for intensity-based histogram feature tracking methods in wide area motion imagery (WAMI) data include object structural information distortions, background variations, and object scale change. These issues are caused by different pavement or ground types and from changing the sensor or altitude. All of these challenges need to be overcome in order to have a robust object tracker, while attaining a computation time appropriate for real-time processing. To achieve this, we present a novel method, Directional Ringlet Intensity Feature Transform (DRIFT), which employs Kirsch kernel filtering for edge features and a ringlet feature mapping for rotational invariance. The method also includes an automatic scale change component to obtain accurate object boundaries and improvements for lowering computation times. We evaluated the DRIFT algorithm on two challenging WAMI datasets, namely Columbus Large Image Format (CLIF) and Large Area Image Recorder (LAIR), to evaluate its robustness and efficiency. Additional evaluations on general tracking video sequences are performed using the Visual Tracker Benchmark and Visual Object Tracking 2014 databases to demonstrate the algorithms ability with additional challenges in long complex sequences including scale change. Experimental results show that the proposed approach yields competitive results compared to state-of-the-art object tracking methods on the testing datasets.

  14. Importance and usefulness of evaluating self-esteem in children

    PubMed Central

    2012-01-01

    Self-esteem is the "feeling of self-appreciation" and is an indispensable emotion for people to adapt to society and live their lives. For children, in particular, the environment in which they are raised contributes profoundly to the development of their self-esteem, which in turn helps them to adapt better to society. Various psychologists have provided definitions of self-esteem, and examined methods of objectively evaluating self-esteem. Questionnaire-style assessment methods for adult include Rosenberg Self-Esteem Scale and Janis-Field Feeling of Inadequacy Scale, and these for children include Coopersmith Self-Esteem Inventory, Pope's 5-Scale Test of Self-Esteem for children, and Kid- KINDL®. Other methods include Ziller Social Self-Esteem Scale and Implicit Association Test. The development of children's self-esteem is heavily influenced by their environment, that is, their homes, neighborhoods, and schools. Children with damaged self-esteem are at risk of developing psychological and social problems, which hinders recovery from low self-esteem. Thus, to recover low self-esteem, it is important for children to accumulate a series of successful experiences to create a positive concept of self. Evaluating children's self-esteem can be an effective method for understanding their past and present circumstances, and useful to treat for children with psychosomatic disorders. PMID:22433387

  15. Evaluation of flaws in carbon steel piping. Final report

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Zahoor, A.; Gamble, R.M.; Mehta, H.S.

    1986-10-01

    The objective of this program was to develop flaw evaluation procedures and allowable flaw sizes for ferritic piping used in light water reactor (LWR) power generation facilities. The program results provide relevant ASME Code groups with the information necessary to define flaw evaluation procedures, allowable flaw sizes, and their associated bases for Section XI of the code. Because there are several possible flaw-related failure modes for ferritic piping over the LWR operating temperature range, three analysis methods were employed to develop the evaluation procedures. These include limit load analysis for plastic collapse, elastic plastic fracture mechanics (EPFM) analysis for ductilemore » tearing, and linear elastic fracture mechanics (LEFM) analysis for non ductile crack extension. To ensure the appropriate analysis method is used in an evaluation, a step by step procedure also is provided to identify the relevant acceptance standard or procedure on a case by case basis. The tensile strength and toughness properties required to complete the flaw evaluation for any of the three analysis methods are included in the evaluation procedure. The flaw evaluation standards are provided in tabular form for the plastic collapse and ductile tearing modes, where the allowable part through flaw depth is defined as a function of load and flaw length. For non ductile crack extension, linear elastic fracture mechanics analysis methods, similar to those in Appendix A of Section XI, are defined. Evaluation flaw sizes and procedures are developed for both longitudinal and circumferential flaw orientations and normal/upset and emergency/faulted operating conditions. The tables are based on margins on load of 2.77 and 1.39 for circumferential flaws and 3.0 and 1.5 for longitudinal flaws for normal/upset and emergency/faulted conditions, respectively.« less

  16. Development of acceptance criteria for batches of silane primer for external tank thermal protection system bonding applications

    NASA Technical Reports Server (NTRS)

    Mikes, F.

    1984-01-01

    Silane primers for use as thermal protection on external tanks were subjected to various analytic techniques to determine the most effective testing method for silane lot evaluation. The analytic methods included high performance liquid chromatography, gas chromatography, thermogravimetry (TGA), and fourier transform infrared spectroscopy (FTIR). It is suggested that FTIR be used as the method for silane lot evaluation. Chromatograms, TGA profiles, bar graphs showing IR absorbances, and FTIR spectra are presented.

  17. Specialized physiological studies in support of manned space flight

    NASA Technical Reports Server (NTRS)

    Luft, U. C.

    1973-01-01

    The areas of physiological research reported include: (1) evaluation of the single-breath method for determining cardiac output, (2) optimum protocol for the assessment of cardio-pulmonary competence, (3) body fluids and electrolytes under conditions of single and combined stress, (4) re-evaluation of the open-circuit method for measuring metabolic rate with regard to the alleged metabolic production of gaseous nitrogen, and (5) the use of the forced-oscillation method to determine total respiratory conductance in healthy subjects and pulmonary patients.

  18. Materials Compatibility Testing in Concentrated Hydrogen Peroxide

    NASA Technical Reports Server (NTRS)

    Boxwell, R.; Bromley, G.; Mason, D.; Crockett, D.; Martinez, L.; McNeal, C.; Lyles, G. (Technical Monitor)

    2000-01-01

    Materials test methods from the 1960's have been used as a starting point in evaluating materials for today's space launch vehicles. These established test methods have been modified to incorporate today's analytical laboratory equipment. The Orbital test objective was to test a wide range of materials to incorporate the revolution in polymer and composite materials that has occurred since the 1960's. Testing is accomplished in 3 stages from rough screening to detailed analytical tests. Several interesting test observations have been made during this testing and are included in the paper. A summary of the set-up, test and evaluation of long-term storage sub-scale tanks is also included. This sub-scale tank test lasted for a 7-month duration prior to being stopped due to a polar boss material breakdown. Chemical evaluations of the hydrogen peroxide and residue left on the polar boss surface identify the material breakdown quite clearly. The paper concludes with recommendations for future testing and a specific effort underway within the industry to standardize the test methods used in evaluating materials.

  19. Advanced propulsion for LEO-Moon transport. 1: A method for evaluating advanced propulsion performance

    NASA Technical Reports Server (NTRS)

    Stern, Martin O.

    1992-01-01

    This report describes a study to evaluate the benefits of advanced propulsion technologies for transporting materials between low Earth orbit and the Moon. A relatively conventional reference transportation system, and several other systems, each of which includes one advanced technology component, are compared in terms of how well they perform a chosen mission objective. The evaluation method is based on a pairwise life-cycle cost comparison of each of the advanced systems with the reference system. Somewhat novel and economically important features of the procedure are the inclusion not only of mass payback ratios based on Earth launch costs, but also of repair and capital acquisition costs, and of adjustments in the latter to reflect the technological maturity of the advanced technologies. The required input information is developed by panels of experts. The overall scope and approach of the study are presented in the introduction. The bulk of the paper describes the evaluation method; the reference system and an advanced transportation system, including a spinning tether in an eccentric Earth orbit, are used to illustrate it.

  20. Empirical entropic contributions in computational docking: evaluation in APS reductase complexes.

    PubMed

    Chang, Max W; Belew, Richard K; Carroll, Kate S; Olson, Arthur J; Goodsell, David S

    2008-08-01

    The results from reiterated docking experiments may be used to evaluate an empirical vibrational entropy of binding in ligand-protein complexes. We have tested several methods for evaluating the vibrational contribution to binding of 22 nucleotide analogues to the enzyme APS reductase. These include two cluster size methods that measure the probability of finding a particular conformation, a method that estimates the extent of the local energetic well by looking at the scatter of conformations within clustered results, and an RMSD-based method that uses the overall scatter and clustering of all conformations. We have also directly characterized the local energy landscape by randomly sampling around docked conformations. The simple cluster size method shows the best performance, improving the identification of correct conformations in multiple docking experiments. 2008 Wiley Periodicals, Inc.

  1. Automated Test Methods for XML Metadata

    DTIC Science & Technology

    2017-12-28

    Group under RCC Task TG-147. This document (Volume VI of the RCC Document 118 series) describes procedures used for evaluating XML metadata documents...including TMATS, MDL, IHAL, and DDML documents. These documents contain specifications or descriptions of artifacts and systems of importance to...the collection and management of telemetry data. The methods defined in this report provide a means of evaluating the suitability of such a metadata

  2. Transient multivariable sensor evaluation

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Vilim, Richard B.; Heifetz, Alexander

    A method and system for performing transient multivariable sensor evaluation. The method and system includes a computer system for identifying a model form, providing training measurement data, generating a basis vector, monitoring system data from sensor, loading the system data in a non-transient memory, performing an estimation to provide desired data and comparing the system data to the desired data and outputting an alarm for a defective sensor.

  3. Improving methods to evaluate the impacts of plant invasions: lessons from 40 years of research

    PubMed Central

    Stricker, Kerry Bohl; Hagan, Donald; Flory, S. Luke

    2015-01-01

    Methods used to evaluate the ecological impacts of biological invasions vary widely from broad-scale observational studies to removal experiments in invaded communities and experimental additions in common gardens and greenhouses. Different methods provide information at diverse spatial and temporal scales with varying levels of reliability. Thus, here we provide a synthetic and critical review of the methods used to evaluate the impacts of plant invasions and provide recommendations for future research. We review the types of methods available and report patterns in methods used, including the duration and spatial scale of studies and plant functional groups examined, from 410 peer-reviewed papers published between 1971 and 2011. We found that there has been a marked increase in papers published on plant invasion impacts since 2003 and that more than half of all studies employed observational methods while <5 % included predictive modelling. Most of the studies were temporally and spatially restricted with 51 % of studies lasting <1 year and almost half of all studies conducted in plots or mesocosms <1 m2. There was also a bias in life form studied: more than 60 % of all studies evaluated impacts of invasive forbs and graminoids while <16 % focused on invasive trees. To more effectively quantify invasion impacts, we argue that longer-term experimental research and more studies that use predictive modelling and evaluate impacts of invasions on ecosystem processes and fauna are needed. Combining broad-scale observational studies with experiments and predictive modelling may provide the most insight into invasion impacts for policy makers and land managers seeking to reduce the effects of plant invasions. PMID:25829379

  4. 42 CFR 86.13 - Project requirements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... the applicant has established good cause for its omission. (1) Provision of a method for development... method for implementation of the needed training; (3) Provision of an evaluation methodology, including... the training program; and (4) Provision of a method by which trainees will be selected. (b) In...

  5. 42 CFR 86.13 - Project requirements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... the applicant has established good cause for its omission. (1) Provision of a method for development... method for implementation of the needed training; (3) Provision of an evaluation methodology, including... the training program; and (4) Provision of a method by which trainees will be selected. (b) In...

  6. 42 CFR 86.13 - Project requirements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... the applicant has established good cause for its omission. (1) Provision of a method for development... method for implementation of the needed training; (3) Provision of an evaluation methodology, including... the training program; and (4) Provision of a method by which trainees will be selected. (b) In...

  7. 42 CFR 86.13 - Project requirements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... the applicant has established good cause for its omission. (1) Provision of a method for development... method for implementation of the needed training; (3) Provision of an evaluation methodology, including... the training program; and (4) Provision of a method by which trainees will be selected. (b) In...

  8. Evaluation of Propiconazole Application Methods for Control of Oak Wilt in Texas Live Oaks

    Treesearch

    A. Dan Wilson; D.G. Lester

    1996-01-01

    Four fungicide application methods using the microencapsulated (blue) 14.3% EC formulation of propiconazole (Alamo), including a low-concentration high volume method, two high-concentration low volume microinjection methods, and a low-concentration intermediate volume soil drench method, were tested for effectiveness in controlling oak wilt in a mature natural stand of...

  9. Traversing the many paths of workflow research: developing a conceptual framework of workflow terminology through a systematic literature review

    PubMed Central

    Novak, Laurie L; Johnson, Kevin B; Lorenzi, Nancy M

    2010-01-01

    The objective of this review was to describe methods used to study and model workflow. The authors included studies set in a variety of industries using qualitative, quantitative and mixed methods. Of the 6221 matching abstracts, 127 articles were included in the final corpus. The authors collected data from each article on researcher perspective, study type, methods type, specific methods, approaches to evaluating quality of results, definition of workflow and dependent variables. Ethnographic observation and interviews were the most frequently used methods. Long study durations revealed the large time commitment required for descriptive workflow research. The most frequently discussed technique for evaluating quality of study results was triangulation. The definition of the term “workflow” and choice of methods for studying workflow varied widely across research areas and researcher perspectives. The authors developed a conceptual framework of workflow-related terminology for use in future research and present this model for use by other researchers. PMID:20442143

  10. Manual of Scaling Methods

    NASA Technical Reports Server (NTRS)

    Bond, Thomas H. (Technical Monitor); Anderson, David N.

    2004-01-01

    This manual reviews the derivation of the similitude relationships believed to be important to ice accretion and examines ice-accretion data to evaluate their importance. Both size scaling and test-condition scaling methods employing the resulting similarity parameters are described, and experimental icing tests performed to evaluate scaling methods are reviewed with results. The material included applies primarily to unprotected, unswept geometries, but some discussion of how to approach other situations is included as well. The studies given here and scaling methods considered are applicable only to Appendix-C icing conditions. Nearly all of the experimental results presented have been obtained in sea-level tunnels. Recommendations are given regarding which scaling methods to use for both size scaling and test-condition scaling, and icing test results are described to support those recommendations. Facility limitations and size-scaling restrictions are discussed. Finally, appendices summarize the air, water and ice properties used in NASA scaling studies, give expressions for each of the similarity parameters used and provide sample calculations for the size-scaling and test-condition scaling methods advocated.

  11. Apollo experience report: Mission evaluation team postflight documentation

    NASA Technical Reports Server (NTRS)

    Dodson, J. W.; Cordiner, D. H.

    1975-01-01

    The various postflight reports prepared by the mission evaluation team, including the final mission evaluation report, report supplements, anomaly reports, and the 5-day mission report, are described. The procedures for preparing each report from the inputs of the various disciplines are explained, and the general method of reporting postflight results is discussed. Recommendations for postflight documentation in future space programs are included. The official requirements for postflight documentation and a typical example of an anomaly report are provided as appendixes.

  12. Evaluation of Heating Methods for Thermal Structural Testing of Large Structures

    NASA Technical Reports Server (NTRS)

    Daryabeigi, Kamran; Sikora, Joseph G.; Caldwell, Darrell L., Jr.

    1998-01-01

    An experimental study was conducted to evaluate different heating methods for thermal structural testing of large scale structures at temperatures up to 350 F as part of the High Speed Research program. The heating techniques evaluated included: radiative/convective, forced convective, and conductive. The radiative/convective heaters included finned strip heaters, and clear and frosted quartz lamps. The forced convective heating was accomplished by closed loop circulation of heated air. The conductive heater consisted of heating blankets. The tests were conducted on an 1/8 inch thick stainless steel plate in a custom-built oven. The criteria used for comparing the different heating methods included test specimen temperature uniformity, heater response time, and consumed power. The parameters investigated included air circulation in the oven, reflectance of oven walls, and the orientation of the test specimen and heaters (vertical and horizontal). It was found that reflectance of oven walls was not an important parameter. Air circulation was necessary to obtain uniform temperatures only for the vertically oriented specimen. Heating blankets provided unacceptably high temperature non-uniformities. Quartz lamps with internal air circulation had the lowest power consumption levels. Using frosted quartz lamps with closed loop circulation of cool air, and closed loop circulation of heated air provided the fastest response time.

  13. Australian health promotion practitioners' perceptions on evaluation of empowerment and participation.

    PubMed

    Brandstetter, Susanne; McCool, Megan; Wise, Marilyn; Loss, Julika

    2014-03-01

    Although participation and empowerment are hallmarks of the WHO vision of health promotion, it is acknowledged that they are difficult to evaluate. Devising adequate study designs, indicators and methods for the assessment of participation and empowerment should consider the experiences, concerns and constraints of health promotion practitioners. The aim of this study was to investigate health promotion practitioners' perspectives on general and methodological aspects of evaluation of empowerment and participation. Semi-structured interviews were conducted with 17 experienced practitioners in community-based health promotion in New South Wales, Australia. The interviews covered benefits of and barriers to the evaluation of participation and empowerment, key indicators and methodological aspects. Interview transcripts were examined using thematic content analysis. The idea of evaluating empowerment and participation is supported by health promotion practitioners. Including indicators of empowerment and participation in the evaluation could also emphasise-to practitioners and citizens alike-the value of involving and enabling community members. The interviews highlighted the importance of a receptive environment for evaluation of empowerment and participation to take root. The resistance of health authorities towards empowerment indicators was seen as a challenge for funding evaluations. Community members should be included in the evaluation process, although interviewees found it difficult to do so in a representative way and empowering approach. Qualitative methods might capture best whether empowerment and participation have occurred in a programme. The positive experiences that the interviewees made with innovative qualitative methods encourage further investment in developing new research designs.

  14. Evaluation of Moving Object Detection Based on Various Input Noise Using Fixed Camera

    NASA Astrophysics Data System (ADS)

    Kiaee, N.; Hashemizadeh, E.; Zarrinpanjeh, N.

    2017-09-01

    Detecting and tracking objects in video has been as a research area of interest in the field of image processing and computer vision. This paper evaluates the performance of a novel method for object detection algorithm in video sequences. This process helps us to know the advantage of this method which is being used. The proposed framework compares the correct and wrong detection percentage of this algorithm. This method was evaluated with the collected data in the field of urban transport which include car and pedestrian in fixed camera situation. The results show that the accuracy of the algorithm will decreases because of image resolution reduction.

  15. Accuracy of the visual estimation method as a predictor of food intake in Alzheimer's patients provided with different types of food.

    PubMed

    Amano, Nobuko; Nakamura, Tomiyo

    2018-02-01

    The visual estimation method is commonly used in hospitals and other care facilities to evaluate food intake through estimation of plate waste. In Japan, no previous studies have investigated the validity and reliability of this method under the routine conditions of a hospital setting. The present study aimed to evaluate the validity and reliability of the visual estimation method, in long-term inpatients with different levels of eating disability caused by Alzheimer's disease. The patients were provided different therapeutic diets presented in various food types. This study was performed between February and April 2013, and 82 patients with Alzheimer's disease were included. Plate waste was evaluated for the 3 main daily meals, for a total of 21 days, 7 consecutive days during each of the 3 months, originating a total of 4851 meals, from which 3984 were included. Plate waste was measured by the nurses through the visual estimation method, and by the hospital's registered dietitians through the actual measurement method. The actual measurement method was first validated to serve as a reference, and the level of agreement between both methods was then determined. The month, time of day, type of food provided, and patients' physical characteristics were considered for analysis. For the 3984 meals included in the analysis, the level of agreement between the measurement methods was 78.4%. Disagreement of measurements consisted of 3.8% of underestimation and 17.8% of overestimation. Cronbach's α (0.60, P < 0.001) indicated that the reliability of the visual estimation method was within the acceptable range. The visual estimation method was found to be a valid and reliable method for estimating food intake in patients with different levels of eating impairment. The successful implementation and use of the method depends upon adequate training and motivation of the nurses and care staff involved. Copyright © 2017 European Society for Clinical Nutrition and Metabolism. Published by Elsevier Ltd. All rights reserved.

  16. 23 CFR 636.304 - What process may be used to rate and score proposals?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... ENGINEERING AND TRAFFIC OPERATIONS DESIGN-BUILD CONTRACTING Proposal Evaluation Factors § 636.304 What process... any rating method or combination of methods including color or adjectival ratings, numerical weights...

  17. Developing criteria to establish Trusted Digital Repositories

    USGS Publications Warehouse

    Faundeen, John L.

    2017-01-01

    This paper details the drivers, methods, and outcomes of the U.S. Geological Survey’s quest to establish criteria by which to judge its own digital preservation resources as Trusted Digital Repositories. Drivers included recent U.S. legislation focused on data and asset management conducted by federal agencies spending $100M USD or more annually on research activities. The methods entailed seeking existing evaluation criteria from national and international organizations such as International Standards Organization (ISO), U.S. Library of Congress, and Data Seal of Approval upon which to model USGS repository evaluations. Certification, complexity, cost, and usability of existing evaluation models were key considerations. The selected evaluation method was derived to allow the repository evaluation process to be transparent, understandable, and defensible; factors that are critical for judging competing, internal units. Implementing the chosen evaluation criteria involved establishing a cross-agency, multi-disciplinary team that interfaced across the organization. 

  18. [Development and prospect on skeletal age evaluation methods of X-ray film].

    PubMed

    Wang, Ya-hui; Zhu, Guang-you; Qiao, Ke; Bian, Shi-zhong; Fan, Li-hua; Cheng, Yi-bin; Ying, Chong-liang; Shen, Yan

    2007-10-01

    The traditional methods of skeletal age estimation mainly include Numeration, Atlas, and Counting scores. In recent years, other new methods were proposed by several scholars. Utilizing image logical characteristics of X-ray film to extrapolate skeletal age is a key means by present forensic medicine workers in evaluating skeletal age. However, there exist some variations when we present the conclusion of skeletal age as an "evidence" directly to the Justice Trial Authority. In order to enhance the accuracy of skeletal age determination, further investigation for appropriate methodology should be undertaken. After a collective study of pertinent domestic and international literatures, we present this review of the research and advancement on skeletal age evaluation methods of X-ray film.

  19. Proposal of a framework for evaluating military surveillance systems for early detection of outbreaks on duty areas

    PubMed Central

    Meynard, Jean-Baptiste; Chaudet, Herve; Green, Andrew D; Jefferson, Henry L; Texier, Gaetan; Webber, Daniel; Dupuy, Bruce; Boutin, Jean-Paul

    2008-01-01

    Background In recent years a wide variety of epidemiological surveillance systems have been developed to provide early identification of outbreaks of infectious disease. Each system has had its own strengths and weaknesses. In 2002 a Working Group of the Centers for Disease Control and Prevention (CDC) produced a framework for evaluation, which proved suitable for many public health surveillance systems. However this did not easily adapt to the military setting, where by necessity a variety of different parameters are assessed, different constraints placed on the systems, and different objectives required. This paper describes a proposed framework for evaluation of military syndromic surveillance systems designed to detect outbreaks of disease on operational deployments. Methods The new framework described in this paper was developed from the cumulative experience of British and French military syndromic surveillance systems. The methods included a general assessment framework (CDC), followed by more specific methods of conducting evaluation. These included Knowledge/Attitude/Practice surveys (KAP surveys), technical audits, ergonomic studies, simulations and multi-national exercises. A variety of military constraints required integration into the evaluation. Examples of these include the variability of geographical conditions in the field, deployment to areas without prior knowledge of naturally-occurring disease patterns, the differences in field sanitation between locations and over the length of deployment, the mobility of military forces, turnover of personnel, continuity of surveillance across different locations, integration with surveillance systems from other nations working alongside each other, compatibility with non-medical information systems, and security. Results A framework for evaluation has been developed that can be used for military surveillance systems in a staged manner consisting of initial, intermediate and final evaluations. For each stage of the process parameters for assessment have been defined and methods identified. Conclusion The combined experiences of French and British syndromic surveillance systems developed for use in deployed military forces has allowed the development of a specific evaluation framework. The tool is suitable for use by all nations who wish to evaluate syndromic surveillance in their own military forces. It could also be useful for civilian mobile systems or for national security surveillance systems. PMID:18447944

  20. Clinical Laboratory Evaluation of Electronic Cigarettes/Electronic Nicotine Delivery Systems: Methodological Challenges

    PubMed Central

    Blank, Melissa D.; Breland, Alison B.; Cobb, Caroline O.; Spindle, Tory; Ramôa, Carolina; Eissenberg, Thomas

    2017-01-01

    Objective Evaluating electronic cigarettes (ECIGs) in the clinical laboratory is critical to understanding their effects. However, laboratory evaluation of ECIGs can be challenging, as they are a novel, varied, and evolving class of products. The objective of this paper is to describe some methodological challenges to the clinical laboratory evaluation of ECIGs. Methods The authors gathered information about challenges involved in the laboratory evaluation of ECIGs. Challenges were categorized and solutions provided when possible. Results Methods used to study combustible cigarettes may need to be adapted to account for ECIG novelty and differences within the class. Challenges to ECIG evaluation can include issues related to 1) identification of ECIG devices and liquids, 2) determination of short -term ECIG abstinence, 3) measurement of use behavior, and 4) assessment of dependence. These challenges are discussed, and some suggestions to inform ECIG evaluation using clinical laboratory methods are provided. Conclusions Awareness of challenges and developing, validating, and reporting methods used to address them aids interpretation of results and replication efforts, thus enhancing the rigor of science used to protect public health through appropriate, empirically-based, ECIG regulation. PMID:28819633

  1. Evaluation of an online continuing education program from the perspective of new graduate nurses.

    PubMed

    Karaman, Selcuk; Kucuk, Sevda; Aydemir, Melike

    2014-05-01

    The aim of this study is to evaluate the online continuing education program from the perspectives of new graduate nurses. An evaluation framework includes five factors (program and course structure, course materials, technology, support services and assessment). In this study, descriptive research methods were used. Participants of the study included 2.365 registered nurses enrolled in the first online nursing bachelor completion degree program in the country. Data were collected by survey. The findings indicated that students were mostly satisfied with this program. The results of this study suggest that well designed asynchronous online education methods can be effective and appropriate for registered nurses. However, the provision of effective support and technological infrastructure is as vital as the quality of teaching for online learners. © 2013.

  2. A methodology for evaluating the usability of audiovisual consumer electronic products.

    PubMed

    Kwahk, Jiyoung; Han, Sung H

    2002-09-01

    Usability evaluation is now considered an essential procedure in consumer product development. Many studies have been conducted to develop various techniques and methods of usability evaluation hoping to help the evaluators choose appropriate methods. However, planning and conducting usability evaluation requires considerations of a number of factors surrounding the evaluation process including the product, user, activity, and environmental characteristics. In this perspective, this study suggested a new methodology of usability evaluation through a simple, structured framework. The framework was outlined by three major components: the interface features of a product as design variables, the evaluation context consisting of user, product, activity, and environment as context variables, and the usability measures as dependent variables. Based on this framework, this study established methods to specify the product interface features, to define evaluation context, and to measure usability. The effectiveness of this methodology was demonstrated through case studies in which the usability of audiovisual products was evaluated by using the methods developed in this study. This study is expected to help the usability practitioners in consumer electronics industry in various ways. Most directly, it supports the evaluators' plan and conduct usability evaluation sessions in a systematic and structured manner. In addition, it can be applied to other categories of consumer products (such as appliances, automobiles, communication devices, etc.) with minor modifications as necessary.

  3. Methods of international health technology assessment agencies for economic evaluations--a comparative analysis.

    PubMed

    Mathes, Tim; Jacobs, Esther; Morfeld, Jana-Carina; Pieper, Dawid

    2013-09-30

    The number of Health Technology Assessment (HTA) agencies increases. One component of HTAs are economic aspects. To incorporate economic aspects commonly economic evaluations are performed. A convergence of recommendations for methods of health economic evaluations between international HTA agencies would facilitate the adaption of results to different settings and avoid unnecessary expense. A first step in this direction is a detailed analysis of existing similarities and differences in recommendations to identify potential for harmonization. The objective is to provide an overview and comparison of the methodological recommendations of international HTA agencies for economic evaluations. The webpages of 127 international HTA agencies were searched for guidelines containing recommendations on methods for the preparation of economic evaluations. Additionally, the HTA agencies were requested information on methods for economic evaluations. Recommendations of the included guidelines were extracted in standardized tables according to 13 methodological aspects. All process steps were performed independently by two reviewers. Finally 25 publications of 14 HTA agencies were included in the analysis. Methods for economic evaluations vary widely. The greatest accordance could be found for the type of analysis and comparator. Cost-utility-analyses or cost-effectiveness-analyses are recommended. The comparator should continuously be usual care. Again the greatest differences were shown in the recommendations on the measurement/sources of effects, discounting and in the analysis of sensitivity. The main difference regarding effects is the focus either on efficacy or effectiveness. Recommended discounting rates range from 1.5%-5% for effects and 3%-5% for costs whereby it is mostly recommended to use the same rate for costs and effects. With respect to the analysis of sensitivity the main difference is that oftentimes the probabilistic or deterministic approach is recommended exclusively. Methods for modeling are only described vaguely and mainly with the rational that the "appropriate model" depends on the decision problem. Considering all other aspects a comparison is challenging as recommendations vary regarding detailedness and addressed issues. There is a considerable unexplainable variance in recommendations. Further effort is needed to harmonize methods for preparing economic evaluations.

  4. Photogrammetry as a tool for the postural evaluation of the spine: A systematic review

    PubMed Central

    Furlanetto, Tássia Silveira; Sedrez, Juliana Adami; Candotti, Cláudia Tarragô; Loss, Jefferson Fagundes

    2016-01-01

    AIM: To evaluate the use of photogrammetry and identify the mathematical procedures applied when evaluating spinal posture. METHODS: A systematic search using keywords was conducted in the PubMed, EMBASE, Scopus, Science and Medicine® databases. The following inclusion criteria adopted were: (1) the use of photogrammetry as a method to evaluate spinal posture; (2) evaluations of spinal curvature in the sagittal and/or frontal plane; (3) studies published within the last three decades; and (4) written entirely in English. The exclusion criteria were: (1) studies which objective involved the verification of some aspect of validation of instruments; (2) studies published as abstracts and those published in scientific events; and (3) studies using evaluation of the anteriorization of the head to determine the angular positioning of the cervical spine. The articles in this review were included and evaluated for their methodological quality, based on the Downs and Black scale, by two independent reviewers. RESULTS: Initially, 1758 articles were found, 76 of which were included upon reading the full texts and 29 were included in accordance with the predetermined criteria. In addition, after analyzing the references in those articles, a further six articles were selected, so that 35 articles were included in this review. This systematic review revealed that the photogrammetry has been using in observational studies. Furthermore, it was also found that, although the data collection methodologies are similar across the studies, in relation to aspects of data analysis, the methodologies are very different, especially regarding the mathematical routines employed to support different postural evaluation software. CONCLUSION: With photogrammetry, the aim of the assessment, whether it is for clinical, research or collective health purposes, must be considered when choosing which protocol to use to evaluate spinal posture. PMID:26925386

  5. Towards standardized assessment of endoscope optical performance: geometric distortion

    NASA Astrophysics Data System (ADS)

    Wang, Quanzeng; Desai, Viraj N.; Ngo, Ying Z.; Cheng, Wei-Chung; Pfefer, Joshua

    2013-12-01

    Technological advances in endoscopes, such as capsule, ultrathin and disposable devices, promise significant improvements in safety, clinical effectiveness and patient acceptance. Unfortunately, the industry lacks test methods for preclinical evaluation of key optical performance characteristics (OPCs) of endoscopic devices that are quantitative, objective and well-validated. As a result, it is difficult for researchers and developers to compare image quality and evaluate equivalence to, or improvement upon, prior technologies. While endoscope OPCs include resolution, field of view, and depth of field, among others, our focus in this paper is geometric image distortion. We reviewed specific test methods for distortion and then developed an objective, quantitative test method based on well-defined experimental and data processing steps to evaluate radial distortion in the full field of view of an endoscopic imaging system. Our measurements and analyses showed that a second-degree polynomial equation could well describe the radial distortion curve of a traditional endoscope. The distortion evaluation method was effective for correcting the image and can be used to explain other widely accepted evaluation methods such as picture height distortion. Development of consensus standards based on promising test methods for image quality assessment, such as the method studied here, will facilitate clinical implementation of innovative endoscopic devices.

  6. Modification of the BAX Salmonella test kit to include a hot start functionality (modification of AOAC Official Method 2003.09).

    PubMed

    Wallace, F Morgan; DiCosimo, Deana; Farnum, Andrew; Tice, George; Andaloro, Bridget; Davis, Eugene; Burns, Frank R

    2011-01-01

    In 2010, the BAX System PCR assay for Salmonella was modified to include a hot start functionality designed to keep the reaction enzyme inactive until PCR begins. To validate the assay's Official Methods of Analysis status to include this procedure modification, an evaluation was conducted on four food types that were simultaneously analyzed with the BAX System and either the U.S. Food and Drug Administration's Bacteriological Analytical Manual or the U.S. Department of Agriculture-Food Safety and Inspection Service Microbiology Laboratory Guidebook reference method for detecting Salmonella. Identical performance between the BAX System method and the reference methods was observed. Additionally, lysates were analyzed using both the BAX System Classic and BAX System Q7 instruments with identical results using both platforms for all samples tested. Of the 100 samples analyzed, 34 samples were positive for both the BAX System and reference methods, and 66 samples were negative by both the BAX System and reference methods, demonstrating 100% correlation. No instrument platform variation was observed. Additional inclusivity and exclusivity testing using the modified test kit demonstrated the test kit to be 100% accurate in evaluation of test panels of 352 Salmonella strains and 46 non-Salmonella strains.

  7. Applying systems theory to the evaluation of a whole school approach to violence prevention.

    PubMed

    Kearney, Sarah; Leung, Loksee; Joyce, Andrew; Ollis, Debbie; Green, Celia

    2016-02-01

    Issue addressed Our Watch led a complex 12-month evaluation of a whole school approach to Respectful Relationships Education (RRE) implemented in 19 schools. RRE is an emerging field aimed at preventing gender-based violence. This paper will illustrate how from an implementation science perspective, the evaluation was a critical element in the change process at both a school and policy level. Methods Using several conceptual approaches from systems science, the evaluation sought to examine how the multiple systems layers - student, teacher, school, community and government - interacted and influenced each other. A distinguishing feature of the evaluation included 'feedback loops'; that is, evaluation data was provided to participants as it became available. Evaluation tools included a combination of standardised surveys (with pre- and post-intervention data provided to schools via individualised reports), reflection tools, regular reflection interviews and summative focus groups. Results Data was shared during implementation with project staff, department staff and schools to support continuous improvement at these multiple systems levels. In complex settings, implementation can vary according to context; and the impact of evaluation processes, tools and findings differed across the schools. Interviews and focus groups conducted at the end of the project illustrated which of these methods were instrumental in motivating change and engaging stakeholders at both a school and departmental level and why. Conclusion The evaluation methods were a critical component of the pilot's approach, helping to shape implementation through data feedback loops and reflective practice for ongoing, responsive and continuous improvement. Future health promotion research on complex interventions needs to examine how the evaluation itself is influencing implementation. So what? The pilot has demonstrated that the evaluation, including feedback loops to inform project activity, were an asset to implementation. This has implications for other health promotion activities, where evaluation tools could be utilised to enhance, rather than simply measure, an intervention. The findings are relevant to a range of health promotion research activities because they demonstrate the importance of meta-evaluation techniques that seek to understand how the evaluation itself was influencing implementation and outcomes.

  8. Evaluating groups in learning disabilities.

    PubMed

    Chia, S H

    Groupwork can be effective in meeting a range of needs presented by students with profound learning disabilities. This article describes the process involved in setting up groups for these students, and includes examples of a group session and methods for evaluating groupwork.

  9. Methods in artificial insemination technology and fertility evaluation in poultry

    USDA-ARS?s Scientific Manuscript database

    The symposium will include an in-depth review and hands-on demonstrations of selected methodologies in AI technology and fertility evaluation. The symposium is geared for commercial farm and hatchery technical staffs and research lab personnel....

  10. Evaluation of design consistency methods for two-lane rural highways : executive summary

    DOT National Transportation Integrated Search

    2000-08-01

    Design consistency refers to the conformance of a highway's geometry with driver expectancy. Techniques to evaluate the consistency of a design documented within this report include speed-profile model, alignment indices, speed distribution measures,...

  11. Evaluation of a CFD Method for Aerodynamic Database Development using the Hyper-X Stack Configuration

    NASA Technical Reports Server (NTRS)

    Parikh, Paresh; Engelund, Walter; Armand, Sasan; Bittner, Robert

    2004-01-01

    A computational fluid dynamic (CFD) study is performed on the Hyper-X (X-43A) Launch Vehicle stack configuration in support of the aerodynamic database generation in the transonic to hypersonic flow regime. The main aim of the study is the evaluation of a CFD method that can be used to support aerodynamic database development for similar future configurations. The CFD method uses the NASA Langley Research Center developed TetrUSS software, which is based on tetrahedral, unstructured grids. The Navier-Stokes computational method is first evaluated against a set of wind tunnel test data to gain confidence in the code s application to hypersonic Mach number flows. The evaluation includes comparison of the longitudinal stability derivatives on the complete stack configuration (which includes the X-43A/Hyper-X Research Vehicle, the launch vehicle and an adapter connecting the two), detailed surface pressure distributions at selected locations on the stack body and component (rudder, elevons) forces and moments. The CFD method is further used to predict the stack aerodynamic performance at flow conditions where no experimental data is available as well as for component loads for mechanical design and aero-elastic analyses. An excellent match between the computed and the test data over a range of flow conditions provides a computational tool that may be used for future similar hypersonic configurations with confidence.

  12. Comparisons of NDT Methods to Inspect Cork and Cork filled Epoxy Bands

    NASA Technical Reports Server (NTRS)

    Lingbloom, Mike

    2007-01-01

    Sheet cork and cork filled epoxy provide external insulation for the Reusable Solid Rocket Motor (RSRM) on the Nation's Space Transportation System (STS). Interest in the reliability of the external insulation bonds has increased since the Columbia incident. A non-destructive test (NDT) method that will provide the best inspection for these bonds has been under evaluation. Electronic Shearography has been selected as the primary NDT method for inspection of these bond lines in the RSRM production flow. ATK Launch Systems Group has purchased an electronic shearography system that includes a vacuum chamber that is used for evaluation of test parts and custom vacuum windows for inspection of full-scale motors. Although the electronic shearography technology has been selected as the primary method for inspection of the external bonds, other technologies that exist continue to be investigated. The NASA/Marshall Space Flight Center (MSFC) NDT department has inspected several samples for comparison with electronic shearography with various inspections systems in their laboratory. The systems that were evaluated are X-ray backscatter, terahertz imaging, and microwave imaging. The samples tested have some programmed flaws as well as some flaws that occurred naturally during the sample making process. These samples provide sufficient flaw variation for the evaluation of the different inspection systems. This paper will describe and compare the basic functionality, test method and test results including dissection for each inspection technology.

  13. Characterization of dielectric materials

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    King, Danny J.; Babinec, Susan; Hagans, Patrick L.

    2017-06-27

    A system and a method for characterizing a dielectric material are provided. The system and method generally include applying an excitation signal to electrodes on opposing sides of the dielectric material to evaluate a property of the dielectric material. The method can further include measuring the capacitive impedance across the dielectric material, and determining a variation in the capacitive impedance with respect to either or both of a time domain and a frequency domain. The measured property can include pore size and surface imperfections. The method can still further include modifying a processing parameter as the dielectric material is formedmore » in response to the detected variations in the capacitive impedance, which can correspond to a non-uniformity in the dielectric material.« less

  14. Advances in the Use of Thermography to Inspect Composite Tanks for Liquid Fuel Propulsion Systems

    NASA Technical Reports Server (NTRS)

    Lansing, Matthew D.; Russell, Samuel S.; Walker, James L.; Jones, Clyde S. (Technical Monitor)

    2001-01-01

    This viewgraph presentation gives an overview of advances in the use of thermography to inspect composite tanks for liquid fuel propulsion systems. Details are given on the thermographic inspection system, thermographic analysis method (includes scan and defect map, method of inspection, and inclusions, ply wrinkle, and delamination defects), graphite composite cryogenic feedline (including method, image map, and deep/shallow inclusions and resin rich area defects), and material degradation nondestructive evaluation.

  15. Using mixed methods to develop and evaluate complex interventions in palliative care research.

    PubMed

    Farquhar, Morag C; Ewing, Gail; Booth, Sara

    2011-12-01

    there is increasing interest in combining qualitative and quantitative research methods to provide comprehensiveness and greater knowledge yield. Mixed methods are valuable in the development and evaluation of complex interventions. They are therefore particularly valuable in palliative care research where the majority of interventions are complex, and the identification of outcomes particularly challenging. this paper aims to introduce the role of mixed methods in the development and evaluation of complex interventions in palliative care, and how they may be used in palliative care research. the paper defines mixed methods and outlines why and how mixed methods are used to develop and evaluate complex interventions, with a pragmatic focus on design and data collection issues and data analysis. Useful texts are signposted and illustrative examples provided of mixed method studies in palliative care, including a detailed worked example of the development and evaluation of a complex intervention in palliative care for breathlessness. Key challenges to conducting mixed methods in palliative care research are identified in relation to data collection, data integration in analysis, costs and dissemination and how these might be addressed. the development and evaluation of complex interventions in palliative care benefit from the application of mixed methods. Mixed methods enable better understanding of whether and how an intervention works (or does not work) and inform the design of subsequent studies. However, they can be challenging: mixed method studies in palliative care will benefit from working with agreed protocols, multidisciplinary teams and engaging staff with appropriate skill sets.

  16. Evaluation of normalization methods in mammalian microRNA-Seq data

    PubMed Central

    Garmire, Lana Xia; Subramaniam, Shankar

    2012-01-01

    Simple total tag count normalization is inadequate for microRNA sequencing data generated from the next generation sequencing technology. However, so far systematic evaluation of normalization methods on microRNA sequencing data is lacking. We comprehensively evaluate seven commonly used normalization methods including global normalization, Lowess normalization, Trimmed Mean Method (TMM), quantile normalization, scaling normalization, variance stabilization, and invariant method. We assess these methods on two individual experimental data sets with the empirical statistical metrics of mean square error (MSE) and Kolmogorov-Smirnov (K-S) statistic. Additionally, we evaluate the methods with results from quantitative PCR validation. Our results consistently show that Lowess normalization and quantile normalization perform the best, whereas TMM, a method applied to the RNA-Sequencing normalization, performs the worst. The poor performance of TMM normalization is further evidenced by abnormal results from the test of differential expression (DE) of microRNA-Seq data. Comparing with the models used for DE, the choice of normalization method is the primary factor that affects the results of DE. In summary, Lowess normalization and quantile normalization are recommended for normalizing microRNA-Seq data, whereas the TMM method should be used with caution. PMID:22532701

  17. Petrophysical evaluation of subterranean formations

    DOEpatents

    Klein, James D; Schoderbek, David A; Mailloux, Jason M

    2013-05-28

    Methods and systems are provided for evaluating petrophysical properties of subterranean formations and comprehensively evaluating hydrate presence through a combination of computer-implemented log modeling and analysis. Certain embodiments include the steps of running a number of logging tools in a wellbore to obtain a variety of wellbore data and logs, and evaluating and modeling the log data to ascertain various petrophysical properties. Examples of suitable logging techniques that may be used in combination with the present invention include, but are not limited to, sonic logs, electrical resistivity logs, gamma ray logs, neutron porosity logs, density logs, NRM logs, or any combination or subset thereof.

  18. Method for technology-delivered healthcare measures.

    PubMed

    Kramer-Jackman, Kelli Lee; Popkess-Vawter, Sue

    2011-12-01

    Current healthcare literature lacks development and evaluation methods for research and practice measures administered by technology. Researchers with varying levels of informatics experience are developing technology-delivered measures because of the numerous advantages they offer. Hasty development of technology-delivered measures can present issues that negatively influence administration and psychometric properties. The Method for Technology-delivered Healthcare Measures is designed to systematically guide the development and evaluation of technology-delivered measures. The five-step Method for Technology-delivered Healthcare Measures includes establishment of content, e-Health literacy, technology delivery, expert usability, and participant usability. Background information and Method for Technology-delivered Healthcare Measures steps are detailed.

  19. The challenges of including impacts on biodiversity in agricultural life cycle assessments.

    PubMed

    Gabel, Vanessa M; Meier, Matthias S; Köpke, Ulrich; Stolze, Matthias

    2016-10-01

    Agriculture is considered to be one of the main drivers for worldwide biodiversity loss but the impacts of agricultural production on biodiversity have not been extensively considered in Life Cycle Assessments (LCAs). Recent realisation that biodiversity impact should be included in comprehensive LCAs has led to attempts to develop and implement methods for biodiversity impact assessment. In this review, twenty-two different biodiversity impact assessment methods have been analysed to identify their strengths and weaknesses in terms of their comprehensiveness in the evaluation of agricultural products. Different criteria, which had to meet the specific requirements of biodiversity research, life cycle assessment methodology, and the evaluation of agricultural products, were selected to investigate the identified methods. Very few of the methods were developed with the specific intention of being used for agricultural LCAs. Furthermore, none of the methods can be applied globally while at the same time being able to differentiate between various agricultural intensities. Global value chains and the increasing awareness of different biodiversity impacts of agricultural production systems demand the development of evaluation methods that are able to overcome these shortcomings. Despite the progress that has already been achieved, there are still unresolved difficulties which need further research and improvement. Copyright © 2016 Elsevier Ltd. All rights reserved.

  20. Evaluation of a Family-Centred Children's Weight Management Intervention

    ERIC Educational Resources Information Center

    Jinks, Annette; English, Sue; Coufopoulos, Anne

    2013-01-01

    Purpose: The purpose of this paper is to conduct an in-depth quantitative and qualitative evaluation of a family-based weight loss and healthy life style programme for clinically obese children in England. Design/methodology/approach: The mixed method case study evaluation used included obtaining pre and post measurements of anthropometry and a…

  1. International Dimensions in American Education: Evaluative Criteria for Precollegiate Programs.

    ERIC Educational Resources Information Center

    Slouka, Z. J.; Slouka, O.

    The purposes of the project described in this document are to identify and evaluate factors which encourage a global perspective in students in grades K-12. The document is presented in three major sections. Section one introduces the scope of the study, discusses objectives, and describes evaluation methods, including reviewing written materials,…

  2. Evaluation Method for an App Involving Kitchen Activities.

    PubMed

    Burzagli, Laura; Gaggioli, Andrea

    2017-01-01

    An app, developed for the national Italian project "Design for all", is evaluated here. This app supports the user in most of his/her cooking activities. The evaluation process integrates different technologies, such as expert interview, cognitive walkthrough and focus group, to consider different aspects that include, but are not limited to, usability and accessibility.

  3. School Furniture Development: An Evaluation. Educational Studies and Documents No. 16.

    ERIC Educational Resources Information Center

    Scriven (F.B.) and Associates, London (England).

    Unesco is playing an increasingly important role in helping developing countries adapt school furniture in line with educational methods and goals. This publication includes an independent evaluation of Unesco's school furniture projects in Sri Lanka and Tunisia. For purposes of comparison, evaluation of a furniture project carried out by the…

  4. Maslow and Motherboards: Taking a Hierarchical View of Technology Planning.

    ERIC Educational Resources Information Center

    Johnson, Doug

    2003-01-01

    Presents a planning model for educational uses of technology that is based on Maslow's hierarchy of needs. Topics include established infrastructure; effective administration; extensive resources; enhanced teaching, including creating distance learning opportunities; empowered students, including evaluation methods and information literacy skills;…

  5. Justification of indirect methods of bending stresses polyethylene pipes evaluation

    NASA Astrophysics Data System (ADS)

    Serebrennikov, A. A.; Serebrennikov, D. A.; Hakimov, Z. R.

    2017-10-01

    The world and Russian companies have a long experience of the polyethylene pipeline installation and operation. At the same time, the significant attention is paid to the improvement of the relevant machines and the production technology. The polyethylene pipeline installation experience proves that its operation properties (reliability and durability) depend on physical and mechanical characteristics of polyethylene, which should be saved during its installation. Defects can occur, including in cases when the pipe is subjected to the significant bending stresses during installation. To evaluate these stresses, including when exposed to cold weather conditions, an indirect method based on the relationship between strength characteristics and occurred deformations is proposed.

  6. METHODOLOGICAL PLURALISM AND MIXED METHODOLOGY TO STRENGTHEN COMMUNITY PSYCHOLOGY RESEARCH: AN EXAMPLE FROM OXFORD HOUSE

    PubMed Central

    May, Emily M.; Hunter, Bronwyn A.; Jason, Leonard A.

    2017-01-01

    This article evaluates how a plurality of research methods has served a research program that has functioned in a much-needed area of research: the role of housing and recovery residences in addiction recovery. The review focuses on one mutually supportive recovery residence model, called Oxford House, which represents more than 1,700 democratic, self-governing residences. To date, there has been no comprehensive evaluation of the research methods used with Oxford House or any other recovery residence. In this article, research methods, including study designs and data analyses, are summarized for 114 peer-reviewed empirical studies that included data on Oxford Houses or Oxford House residents. This review of a pluralistic research program can inform community researchers about the value of recovery residences, the many ways in which recovery residences may be assessed, and the benefits of using multiple methods. Implications for future recovery residence research are discussed. PMID:28839344

  7. METHODOLOGICAL PLURALISM AND MIXED METHODOLOGY TO STRENGTHEN COMMUNITY PSYCHOLOGY RESEARCH: AN EXAMPLE FROM OXFORD HOUSE.

    PubMed

    May, Emily M; Hunter, Bronwyn A; Jason, Leonard A

    2017-01-01

    This article evaluates how a plurality of research methods has served a research program that has functioned in a much-needed area of research: the role of housing and recovery residences in addiction recovery. The review focuses on one mutually supportive recovery residence model, called Oxford House, which represents more than 1,700 democratic, self-governing residences. To date, there has been no comprehensive evaluation of the research methods used with Oxford House or any other recovery residence. In this article, research methods, including study designs and data analyses, are summarized for 114 peer-reviewed empirical studies that included data on Oxford Houses or Oxford House residents. This review of a pluralistic research program can inform community researchers about the value of recovery residences, the many ways in which recovery residences may be assessed, and the benefits of using multiple methods. Implications for future recovery residence research are discussed.

  8. Psychometric properties of an instrument to measure nursing students' quality of life.

    PubMed

    Chu, Yanxiang; Xu, Min; Li, Xiuyun

    2015-07-01

    It is important for clinical nursing teachers and managers to recognize the importance of nursing students' quality of life (QOL) since they are the source of future nurses. As yet, there is no quality of life evaluation scale (QOLES) specific to them. This study designed a quantitative instrument for evaluating QOL of nursing students. The study design was a descriptive survey with mixed methods including literature review, panel discussion, Delphi method, and statistical analysis. The data were collected from 880 nursing students from four teaching hospitals in Wuhan, China. The reliability and validity of the scale were tested through completion of the QOLES in a cluster sampling method. The total scale included 18 items in three domains: physical, psychological, and social functional. The cumulative contributing rate of the three common factors was 65.23%. Cronbach's alpha coefficient of the scale was 0.82. This scale had good reliability and validity to evaluate nursing students' QOL. Copyright © 2015 Elsevier Ltd. All rights reserved.

  9. A comprehensive evaluation of three microfluidic chemiluminescence methods for the determination of the total phenolic contents in fruit juices.

    PubMed

    Al Haddabi, Buthaina; Al Lawati, Haider A J; Suliman, FakhrEldin O

    2017-01-01

    Three recently reported microfluidic chemiluminescence (MF-CL) methods (based on reactions with acidic permanganate enhanced by formaldehyde (KMnO4-COH), acidic cerium (IV) and rhodamine B (Ce-RB), and acidic cerium (IV) and rhodamine 6G (Ce-R6G) enhanced by SDS) for the determination of the total phenolic content (TPC) in juices were critically evaluated in terms of their selectivity. The evaluation was carried out using 86 analytes, including 22 phenolic compounds (phenolic acids and polyphenols), 6 known non-phenolic antioxidants, 9 amino acids and a number of proteins, carbohydrates, nucleotide bases, inorganic salts and other compounds. Each method was sensitive toward phenolic compounds (PCs). However, the KMnO4-COH CL system showed a higher sensitivity toward phenolic acids and also responded to non-phenolic antioxidants. The other two systems showed higher sensitivity toward polyphenolic compounds than to phenolic acids and did not responded to all other compounds including non-phenolic antioxidants. Copyright © 2016 Elsevier Ltd. All rights reserved.

  10. About the mechanism of ERP-system pilot test

    NASA Astrophysics Data System (ADS)

    Mitkov, V. V.; Zimin, V. V.

    2018-05-01

    In the paper the mathematical problem of defining the scope of pilot test is stated, which is a task of quadratic programming. The procedure of the problem solving includes the method of network programming based on the structurally similar network representation of the criterion and constraints and which reduces the original problem to a sequence of simpler evaluation tasks. The evaluation tasks are solved by the method of dichotomous programming.

  11. Dynamic Testing of In-Situ Composite Floors and Evaluation of Vibration Serviceability Using the Finite Element Method

    DTIC Science & Technology

    2006-08-21

    Dynamic Testing of In-Situ Composite Floors and Evaluation of Vibration Serviceability Using the Finite Element Method By Anthony R. Barrett...Setareh Alfred L. Wicks 21 August 2006 Blacksburg, VA Keywords: vibration, floor, serviceability , walking, modal analysis, fundamental frequency...burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services

  12. Formulation, Characterization and Physicochemical Evaluation of Ranitidine Effervescent Tablets

    PubMed Central

    Aslani, Abolfazl; Jahangiri, Hajar

    2013-01-01

    Purpose: The aim of this study was to design, formulate and physicochemically evaluate effervescent ranitidine hydrochloride (HCl) tablets since they are easily administered while the elderly and children sometimes have difficulties in swallowing oral dosage forms. Methods: Effervescent ranitidine HCl tablets were prepared in a dosage of 300 mg by fusion and direct compression methods. The powder blend and granule mixture were evaluated for various pre-compression characteristics, such as angle of repose, compressibility index, mean particle size and Hausner's ratio. The tablets were evaluated for post-compression features including weight variation, hardness, friability, drug content, dissolution time, carbon dioxide content, effervescence time, pH, content uniformity and water content. Effervescent systems with appropriate pre and post-compression qualities dissolved rapidly in water were selected as the best formulations. Results: The results showed that the flowability of fusion method is more than that of direct compression and the F5 and F6 formulations of 300 mg tablets were selected as the best formulations because of their physicochemical characteristics. Conclusion: In this study, citric acid, sodium bicarbonate and sweeteners (including mannitol, sucrose and aspartame) were selected. Aspartame, mint and orange flavors were more effective for masking the bitter taste of ranitidine. The fusion method is the best alternative in terms of physicochemical and physical properties. PMID:24312854

  13. Modeling of unit operating considerations in generating-capacity reliability evaluation. Volume 1. Mathematical models, computing methods, and results. Final report. [GENESIS, OPCON and OPPLAN

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Patton, A.D.; Ayoub, A.K.; Singh, C.

    1982-07-01

    Existing methods for generating capacity reliability evaluation do not explicitly recognize a number of operating considerations which may have important effects in system reliability performance. Thus, current methods may yield estimates of system reliability which differ appreciably from actual observed reliability. Further, current methods offer no means of accurately studying or evaluating alternatives which may differ in one or more operating considerations. Operating considerations which are considered to be important in generating capacity reliability evaluation include: unit duty cycles as influenced by load cycle shape, reliability performance of other units, unit commitment policy, and operating reserve policy; unit start-up failuresmore » distinct from unit running failures; unit start-up times; and unit outage postponability and the management of postponable outages. A detailed Monte Carlo simulation computer model called GENESIS and two analytical models called OPCON and OPPLAN have been developed which are capable of incorporating the effects of many operating considerations including those noted above. These computer models have been used to study a variety of actual and synthetic systems and are available from EPRI. The new models are shown to produce system reliability indices which differ appreciably from index values computed using traditional models which do not recognize operating considerations.« less

  14. Airframe noise prediction evaluation

    NASA Technical Reports Server (NTRS)

    Yamamoto, Kingo J.; Donelson, Michael J.; Huang, Shumei C.; Joshi, Mahendra C.

    1995-01-01

    The objective of this study is to evaluate the accuracy and adequacy of current airframe noise prediction methods using available airframe noise measurements from tests of a narrow body transport (DC-9) and a wide body transport (DC-10) in addition to scale model test data. General features of the airframe noise from these aircraft and models are outlined. The results of the assessment of two airframe prediction methods, Fink's and Munson's methods, against flight test data of these aircraft and scale model wind tunnel test data are presented. These methods were extensively evaluated against measured data from several configurations including clean, slat deployed, landing gear-deployed, flap deployed, and landing configurations of both DC-9 and DC-10. They were also assessed against a limited number of configurations of scale models. The evaluation was conducted in terms of overall sound pressure level (OASPL), tone corrected perceived noise level (PNLT), and one-third-octave band sound pressure level (SPL).

  15. Evaluation and development plan of NRTA measurement methods for the Rokkasho Reprocessing Plant

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Li, T.K.; Hakkila, E.A.; Flosterbuer, S.F.

    Near-real-time accounting (NRTA) has been proposed as a safeguards method at the Rokkasho Reprocessing Plant (RRP), a large-scale commercial boiling water and pressurized water reactors spent-fuel reprocessing facility. NRTA for RRP requires material balance closures every month. To develop a more effective and practical NRTA system for RRP, we have evaluated NRTA measurement techniques and systems that might be implemented in both the main process and the co-denitration process areas at RRP to analyze the concentrations of plutonium in solutions and mixed oxide powder. Based on the comparative evaluation, including performance, reliability, design criteria, operation methods, maintenance requirements, and estimatedmore » costs for each possible measurement method, recommendations for development were formulated. This paper discusses the evaluations and reports on the recommendation of the NRTA development plan for potential implementation at RRP.« less

  16. Sustaining and improving an international service-learning partnership: Evaluation of an evidence-based service delivery model.

    PubMed

    Hayward, Lorna M; Li, Li

    2017-06-01

    International service learning (ISL) is an instructional method used by physical therapist educators in the United States (US) to prepare students for rendering culturally competent care. ISL is a faculty led student learning opportunity that includes academic instruction and community service in an international context. Research exists that explores student experiences with ISL, but studies that evaluate ISL partnerships and include global stakeholder feedback are lacking. The purposes of this study were to: 1) integrate a partnership evaluation component into an existing curriculum-based ISL model and 2) through evaluation identify benefits, drawbacks, and suggestions for improving and sustaining the academic-community partnership. Community-based participatory research design using a mixed methods approach was used to evaluate a ISL partnership between a US-based physical therapy program and a service site in Ecuador. Participants were 31 staff working at the global service site. Over three years, 11 interviews were conducted and 26 surveys were administered to global partner staff. Data were analyzed using qualitative thematic content analysis and descriptive statistics. Partnership benefits included the following: continuity of ISL team leadership, targeted rehabilitative efforts, sensitivity to cultural norms, respectful communication, and interaction with local community. Drawbacks were as follows: deficits in cultural awareness, language barriers, and poor treatment carryover. Suggestions for sustaining the relationship incorporated: additional pre-trip communication, education of staff, and improved language skills. As more US teams deliver clinical services abroad, intentional evaluation approaches must include the global stakeholder in the planning, implementation, and evaluation phases to maximize partnerships benefits.

  17. Development, evaluation and application of a modified micrometeorological gradient method for long-term estimation of gaseous dry deposition over forest canopies.

    EPA Science Inventory

    Small pollutant concentration gradients between levels above a plant canopy result in large uncertainties in estimated air–surface exchange fluxes when using existing micrometeorological gradient methods, including the aerodynamic gradient method (AGM) and the modified Bowen rati...

  18. Strategy to Promote Active Learning of an Advanced Research Method

    ERIC Educational Resources Information Center

    McDermott, Hilary J.; Dovey, Terence M.

    2013-01-01

    Research methods courses aim to equip students with the knowledge and skills required for research yet seldom include practical aspects of assessment. This reflective practitioner report describes and evaluates an innovative approach to teaching and assessing advanced qualitative research methods to final-year psychology undergraduate students. An…

  19. 75 FR 13515 - Office of Innovation and Improvement (OII); Overview Information; Ready-to-Learn Television...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-22

    ... on rigorous scientifically based research methods to assess the effectiveness of a particular... activities and programs; and (B) Includes research that-- (i) Employs systematic, empirical methods that draw... or observational methods that provide reliable and valid data across evaluators and observers, across...

  20. Methods for detecting, quantifying, and adjusting for dissemination bias in meta-analysis are described.

    PubMed

    Mueller, Katharina Felicitas; Meerpohl, Joerg J; Briel, Matthias; Antes, Gerd; von Elm, Erik; Lang, Britta; Motschall, Edith; Schwarzer, Guido; Bassler, Dirk

    2016-12-01

    To systematically review methodological articles which focus on nonpublication of studies and to describe methods of detecting and/or quantifying and/or adjusting for dissemination in meta-analyses. To evaluate whether the methods have been applied to an empirical data set for which one can be reasonably confident that all studies conducted have been included. We systematically searched Medline, the Cochrane Library, and Web of Science, for methodological articles that describe at least one method of detecting and/or quantifying and/or adjusting for dissemination bias in meta-analyses. The literature search retrieved 2,224 records, of which we finally included 150 full-text articles. A great variety of methods to detect, quantify, or adjust for dissemination bias were described. Methods included graphical methods mainly based on funnel plot approaches, statistical methods, such as regression tests, selection models, sensitivity analyses, and a great number of more recent statistical approaches. Only few methods have been validated in empirical evaluations using unpublished studies obtained from regulators (Food and Drug Administration, European Medicines Agency). We present an overview of existing methods to detect, quantify, or adjust for dissemination bias. It remains difficult to advise which method should be used as they are all limited and their validity has rarely been assessed. Therefore, a thorough literature search remains crucial in systematic reviews, and further steps to increase the availability of all research results need to be taken. Copyright © 2016 Elsevier Inc. All rights reserved.

  1. Performance of multiple docking and refinement methods in the pose prediction D3R prospective Grand Challenge 2016

    NASA Astrophysics Data System (ADS)

    Fradera, Xavier; Verras, Andreas; Hu, Yuan; Wang, Deping; Wang, Hongwu; Fells, James I.; Armacost, Kira A.; Crespo, Alejandro; Sherborne, Brad; Wang, Huijun; Peng, Zhengwei; Gao, Ying-Duo

    2018-01-01

    We describe the performance of multiple pose prediction methods for the D3R 2016 Grand Challenge. The pose prediction challenge includes 36 ligands, which represent 4 chemotypes and some miscellaneous structures against the FXR ligand binding domain. In this study we use a mix of fully automated methods as well as human-guided methods with considerations of both the challenge data and publicly available data. The methods include ensemble docking, colony entropy pose prediction, target selection by molecular similarity, molecular dynamics guided pose refinement, and pose selection by visual inspection. We evaluated the success of our predictions by method, chemotype, and relevance of publicly available data. For the overall data set, ensemble docking, visual inspection, and molecular dynamics guided pose prediction performed the best with overall mean RMSDs of 2.4, 2.2, and 2.2 Å respectively. For several individual challenge molecules, the best performing method is evaluated in light of that particular ligand. We also describe the protein, ligand, and public information data preparations that are typical of our binding mode prediction workflow.

  2. Correlation between loose density and compactibility of granules prepared by various granulation methods.

    PubMed

    Murakami, H; Yoneyama, T; Nakajima, K; Kobayashi, M

    2001-03-23

    The objectives of this study were to prepare the lactose granules by various granulation methods using polyethylene glycol 6000 (PEG 6000) as a binder and to evaluate the effects of granulation methods on the compressibility and compactibility of granules in tabletting. Lactose was granulated by seven granulation methods -- four wet granulations including wet massing granulation, wet high-speed mixer granulation, wet fluidized bed granulation and wet tumbling fluidized bed granulation; and three melt granulations including melt high-speed mixer granulation, melt fluidized bed granulation and melt tumbling fluidized bed granulation. The loose density, angle of repose, granule size distribution, mean diameter of granules, and the tensile strength and porosity of tablets were evaluated. The compactibilities of granules were varied by the granulation methods. However, the difference in compactibility of granules could not be explained due to the difference in compressibility, since there was no difference in Heckel plots due to granulation methods. Among their granule properties, the loose density of granules seemed to have a correlation with the tablet strength regardless of the granulation methods.

  3. Reported credibility techniques in higher education evaluation studies that use qualitative methods: A research synthesis.

    PubMed

    Liao, Hongjing; Hitchcock, John

    2018-06-01

    This synthesis study examined the reported use of credibility techniques in higher education evaluation articles that use qualitative methods. The sample included 118 articles published in six leading higher education evaluation journals from 2003 to 2012. Mixed methods approaches were used to identify key credibility techniques reported across the articles, document the frequency of these techniques, and describe their use and properties. Two broad sets of techniques were of interest: primary design techniques (i.e., basic), such as sampling/participant recruitment strategies, data collection methods, analytic details, and additional qualitative credibility techniques (e.g., member checking, negative case analyses, peer debriefing). The majority of evaluation articles reported use of primary techniques although there was wide variation in the amount of supporting detail; most of the articles did not describe the use of additional credibility techniques. This suggests that editors of evaluation journals should encourage the reporting of qualitative design details and authors should develop strategies yielding fuller methodological description. Copyright © 2018 Elsevier Ltd. All rights reserved.

  4. Evaluation of traffic signal timing optimization methods using a stochastic and microscopic simulation program.

    DOT National Transportation Integrated Search

    2003-01-01

    This study evaluated existing traffic signal optimization programs including Synchro,TRANSYT-7F, and genetic algorithm optimization using real-world data collected in Virginia. As a first step, a microscopic simulation model, VISSIM, was extensively ...

  5. Alternatives to Piloting Textbooks.

    ERIC Educational Resources Information Center

    Muther, Connie

    1985-01-01

    Using short-term pilot programs to evaluate textbooks can lead to unreliable results and interfere with effective education. Alternative methods for evaluating textbook-based programs include obtaining documented analyses of competitors' products from sales agents, visiting districts using programs being considered, and examining publishers' own…

  6. New methods for the numerical integration of ordinary differential equations and their application to the equations of motion of spacecraft

    NASA Technical Reports Server (NTRS)

    Banyukevich, A.; Ziolkovski, K.

    1975-01-01

    A number of hybrid methods for solving Cauchy problems are described on the basis of an evaluation of advantages of single and multiple-point numerical integration methods. The selection criterion is the principle of minimizing computer time. The methods discussed include the Nordsieck method, the Bulirsch-Stoer extrapolation method, and the method of recursive Taylor-Steffensen power series.

  7. Improved Estimation of Cardiac Function Parameters Using a Combination of Independent Automated Segmentation Results in Cardiovascular Magnetic Resonance Imaging.

    PubMed

    Lebenberg, Jessica; Lalande, Alain; Clarysse, Patrick; Buvat, Irene; Casta, Christopher; Cochet, Alexandre; Constantinidès, Constantin; Cousty, Jean; de Cesare, Alain; Jehan-Besson, Stephanie; Lefort, Muriel; Najman, Laurent; Roullot, Elodie; Sarry, Laurent; Tilmant, Christophe; Frouin, Frederique; Garreau, Mireille

    2015-01-01

    This work aimed at combining different segmentation approaches to produce a robust and accurate segmentation result. Three to five segmentation results of the left ventricle were combined using the STAPLE algorithm and the reliability of the resulting segmentation was evaluated in comparison with the result of each individual segmentation method. This comparison was performed using a supervised approach based on a reference method. Then, we used an unsupervised statistical evaluation, the extended Regression Without Truth (eRWT) that ranks different methods according to their accuracy in estimating a specific biomarker in a population. The segmentation accuracy was evaluated by estimating six cardiac function parameters resulting from the left ventricle contour delineation using a public cardiac cine MRI database. Eight different segmentation methods, including three expert delineations and five automated methods, were considered, and sixteen combinations of the automated methods using STAPLE were investigated. The supervised and unsupervised evaluations demonstrated that in most cases, STAPLE results provided better estimates than individual automated segmentation methods. Overall, combining different automated segmentation methods improved the reliability of the segmentation result compared to that obtained using an individual method and could achieve the accuracy of an expert.

  8. Improved Estimation of Cardiac Function Parameters Using a Combination of Independent Automated Segmentation Results in Cardiovascular Magnetic Resonance Imaging

    PubMed Central

    Lebenberg, Jessica; Lalande, Alain; Clarysse, Patrick; Buvat, Irene; Casta, Christopher; Cochet, Alexandre; Constantinidès, Constantin; Cousty, Jean; de Cesare, Alain; Jehan-Besson, Stephanie; Lefort, Muriel; Najman, Laurent; Roullot, Elodie; Sarry, Laurent; Tilmant, Christophe

    2015-01-01

    This work aimed at combining different segmentation approaches to produce a robust and accurate segmentation result. Three to five segmentation results of the left ventricle were combined using the STAPLE algorithm and the reliability of the resulting segmentation was evaluated in comparison with the result of each individual segmentation method. This comparison was performed using a supervised approach based on a reference method. Then, we used an unsupervised statistical evaluation, the extended Regression Without Truth (eRWT) that ranks different methods according to their accuracy in estimating a specific biomarker in a population. The segmentation accuracy was evaluated by estimating six cardiac function parameters resulting from the left ventricle contour delineation using a public cardiac cine MRI database. Eight different segmentation methods, including three expert delineations and five automated methods, were considered, and sixteen combinations of the automated methods using STAPLE were investigated. The supervised and unsupervised evaluations demonstrated that in most cases, STAPLE results provided better estimates than individual automated segmentation methods. Overall, combining different automated segmentation methods improved the reliability of the segmentation result compared to that obtained using an individual method and could achieve the accuracy of an expert. PMID:26287691

  9. Assessing the Potential Use of Eye-Tracking Triangulation for Evaluating the Usability of an Online Diabetes Exercise System.

    PubMed

    Schaarup, Clara; Hartvigsen, Gunnar; Larsen, Lars Bo; Tan, Zheng-Hua; Årsand, Eirik; Hejlesen, Ole Kristian

    2015-01-01

    The Online Diabetes Exercise System was developed to motivate people with Type 2 diabetes to do a 25 minutes low-volume high-intensity interval training program. In a previous multi-method evaluation of the system, several usability issues were identified and corrected. Despite the thorough testing, it was unclear whether all usability problems had been identified using the multi-method evaluation. Our hypothesis was that adding the eye-tracking triangulation to the multi-method evaluation would increase the accuracy and completeness when testing the usability of the system. The study design was an Eye-tracking Triangulation; conventional eye-tracking with predefined tasks followed by The Post-Experience Eye-Tracked Protocol (PEEP). Six Areas of Interests were the basis for the PEEP-session. The eye-tracking triangulation gave objective and subjective results, which are believed to be highly relevant for designing, implementing, evaluating and optimizing systems in the field of health informatics. Future work should include testing the method on a larger and more representative group of users and apply the method on different system types.

  10. Surface defect detection in tiling Industries using digital image processing methods: analysis and evaluation.

    PubMed

    Karimi, Mohammad H; Asemani, Davud

    2014-05-01

    Ceramic and tile industries should indispensably include a grading stage to quantify the quality of products. Actually, human control systems are often used for grading purposes. An automatic grading system is essential to enhance the quality control and marketing of the products. Since there generally exist six different types of defects originating from various stages of tile manufacturing lines with distinct textures and morphologies, many image processing techniques have been proposed for defect detection. In this paper, a survey has been made on the pattern recognition and image processing algorithms which have been used to detect surface defects. Each method appears to be limited for detecting some subgroup of defects. The detection techniques may be divided into three main groups: statistical pattern recognition, feature vector extraction and texture/image classification. The methods such as wavelet transform, filtering, morphology and contourlet transform are more effective for pre-processing tasks. Others including statistical methods, neural networks and model-based algorithms can be applied to extract the surface defects. Although, statistical methods are often appropriate for identification of large defects such as Spots, but techniques such as wavelet processing provide an acceptable response for detection of small defects such as Pinhole. A thorough survey is made in this paper on the existing algorithms in each subgroup. Also, the evaluation parameters are discussed including supervised and unsupervised parameters. Using various performance parameters, different defect detection algorithms are compared and evaluated. Copyright © 2013 ISA. Published by Elsevier Ltd. All rights reserved.

  11. Study on processing immiscible materials in zero gravity

    NASA Technical Reports Server (NTRS)

    Reger, J. L.; Mendelson, R. A.

    1975-01-01

    An experimental investigation was conducted to evaluate mixing immiscible metal combinations under several process conditions. Under one-gravity, these included thermal processing, thermal plus electromagnetic mixing, and thermal plus acoustic mixing. The same process methods were applied during free fall on the MSFC drop tower facility. The design is included of drop tower apparatus to provide the electromagnetic and acoustic mixing equipment, and a thermal model was prepared to design the specimen and cooling procedure. Materials systems studied were Ca-La, Cd-Ga and Al-Bi; evaluation of the processed samples included the morphology and electronic property measurements. The morphology was developed using optical and scanning electron microscopy and microprobe analyses. Electronic property characterization of the superconducting transition temperatures were made using an impedance change-tuned coil method.

  12. An evaluation method of the sustainability of water resource in karst region: a case study of Zunyi, China

    NASA Astrophysics Data System (ADS)

    Li, Bo; Wang, Ganlu; Ding, Hanghang; Chen, Yulong

    2017-06-01

    Water resource is of great significance to the survival and development of human. However, the water resource system in karst regions is sensitive to external interference owing to the special geological processes which cause soil impoverishment, severe rocky desertification and large topographic height difference. Therefore, evaluating the sustainability of the water resource in karst regions is beneficial to reasonably use and protect water resource. This paper puts forward to evaluate the water resource from four aspects, including water resources system, water requirement system, ecosystem and social economic system. Moreover, on this basis, 18 evaluation indexes were selected to construct the sustainability evaluation index system and method. This method was used to evaluate the sustainability of the water resource in the typical karst region—Zunyi, Guizhou province, China, and was verified according to the actual situation in the research area. All these provide reference for the evaluation of the sustainability of the water resource in similar regions.

  13. Analytical Methods to Evaluate the Quality of Edible Fats and Oils: The JOCS Standard Methods for Analysis of Fats, Oils and Related Materials (2013) and Advanced Methods.

    PubMed

    Endo, Yasushi

    2018-01-01

    Edible fats and oils are among the basic components of the human diet, along with carbohydrates and proteins, and they are the source of high energy and essential fatty acids such as linoleic and linolenic acids. Edible fats and oils are used in for pan- and deep-frying, and in salad dressing, mayonnaise and processed foods such as chocolates and cream. The physical and chemical properties of edible fats and oils can affect the quality of oil foods and hence must be evaluated in detail. The physical characteristics of edible fats and oils include color, specific gravity, refractive index, melting point, congeal point, smoke point, flash point, fire point, and viscosity, while the chemical characteristics include acid value, saponification value, iodine value, fatty acid composition, trans isomers, triacylglycerol composition, unsaponifiable matters (sterols, tocopherols) and minor components (phospholipids, chlorophyll pigments, glycidyl fatty acid esters). Peroxide value, p-anisidine value, carbonyl value, polar compounds and polymerized triacylglycerols are indexes of the deterioration of edible fats and oils. This review describes the analytical methods to evaluate the quality of edible fats and oils, especially the Standard Methods for Analysis of Fats, Oils and Related Materials edited by Japan Oil Chemists' Society (the JOCS standard methods) and advanced methods.

  14. Measuring value for money: a scoping review on economic evaluation of health information systems.

    PubMed

    Bassi, Jesdeep; Lau, Francis

    2013-01-01

    To explore how key components of economic evaluations have been included in evaluations of health information systems (HIS), to determine the state of knowledge on value for money for HIS, and provide guidance for future evaluations. We searched databases, previously collected papers, and references for relevant papers published from January 2000 to June 2012. For selection, papers had to: be a primary study; involve a computerized system for health information processing, decision support, or management reporting; and include an economic evaluation. Data on study design and economic evaluation methods were extracted and analyzed. Forty-two papers were selected and 33 were deemed high quality (scores ≥ 8/10) for further analysis. These included 12 economic analyses, five input cost analyses, and 16 cost-related outcome analyses. For HIS types, there were seven primary care electronic medical records, six computerized provider order entry systems, five medication management systems, five immunization information systems, four institutional information systems, three disease management systems, two clinical documentation systems, and one health information exchange network. In terms of value for money, 23 papers reported positive findings, eight were inconclusive, and two were negative. We found a wide range of economic evaluation papers that were based on different assumptions, methods, and metrics. There is some evidence of value for money in selected healthcare organizations and HIS types. However, caution is needed when generalizing these findings. Better reporting of economic evaluation studies is needed to compare findings and build on the existing evidence base we identified.

  15. Training and capacity building evaluation: Maximizing resources and results with Success Case Method.

    PubMed

    Medina, L; Acosta-Pérez, E; Velez, C; Martínez, G; Rivera, M; Sardiñas, L; Pattatucci, A

    2015-10-01

    This article describes the use of Success Case Method (Brinkerhoff, 2003) to evaluate health promotion and public health training programs. The goal of the Office Community Research and Engagement (OCRE) of the Puerto Rico Clinical and Translational Research Consortium (PRCTRC) is to establish a stable and sustainable translational research capacity. Early efforts toward achieving this goal included sponsoring two independent research training programs. A description of the implementation of the five step Success Case Method is presented. Results reveal that SCM would deem both trainings as highly successful, based upon the overall impact of a low number of success cases. However, a traditional summative evaluation would consider this disappointing. Strengths of SCM are discussed. It was concluded that the Success Case Method is a useful and valuable evaluative method for measuring the success of health promotion and public health training initiatives and provides sufficient information for decision-making processes. Copyright © 2015 Elsevier Ltd. All rights reserved.

  16. Comparing different methods for fast screening of microbiological quality of beach sand aimed at rapid-response remediation.

    PubMed

    Testolin, Renan C; Almeida, Tito C M; Polette, Marcus; Branco, Joaquim O; Fischer, Larissa L; Niero, Guilherme; Poyer-Radetski, Gabriel; Silva, Valéria C; Somensi, Cleder A; Corrêa, Albertina X R; Corrêa, Rogério; Rörig, Leonardo R; Itokazu, Ana Gabriela; Férard, Jean-François; Cotelle, Sylvie; Radetski, Claudemir M

    2017-05-15

    There is scientific evidence that beach sands are a significant contributor to the pathogen load to which visitors are exposed. To develop beach quality guidelines all beach zones must be included in microbiological evaluations, but monitoring methods for beach sand quality are relatively longstanding, expensive, laborious and require moderate laboratory infrastructure. This paper aimed to evaluate the microorganism activity in different beach zones applying and comparing a classical method of membrane filtration (MF) with two colorimetric screening methods based on fluorescein (FDA) and tetrazolium (TTC) salt biotransformation to evaluate a new rapid and low-cost method for beach sand microbiological contamination assessments. The colorimetric results can help beach managers to evaluate rapidly and at low cost the microbiological quality of different beach zones in order to decide whether remedial actions need to be adopted to prevent exposure of the public to microbes due to beach sand and/or water contamination. Copyright © 2017. Published by Elsevier Ltd.

  17. Evaluating the dynamic response of in-flight thrust calculation techniques during throttle transients

    NASA Technical Reports Server (NTRS)

    Ray, Ronald J.

    1994-01-01

    New flight test maneuvers and analysis techniques for evaluating the dynamic response of in-flight thrust models during throttle transients have been developed and validated. The approach is based on the aircraft and engine performance relationship between thrust and drag. Two flight test maneuvers, a throttle step and a throttle frequency sweep, were developed and used in the study. Graphical analysis techniques, including a frequency domain analysis method, were also developed and evaluated. They provide quantitative and qualitative results. Four thrust calculation methods were used to demonstrate and validate the test technique. Flight test applications on two high-performance aircraft confirmed the test methods as valid and accurate. These maneuvers and analysis techniques were easy to implement and use. Flight test results indicate the analysis techniques can identify the combined effects of model error and instrumentation response limitations on the calculated thrust value. The methods developed in this report provide an accurate approach for evaluating, validating, or comparing thrust calculation methods for dynamic flight applications.

  18. Model-based economic evaluations in smoking cessation and their transferability to new contexts: a systematic review.

    PubMed

    Berg, Marrit L; Cheung, Kei Long; Hiligsmann, Mickaël; Evers, Silvia; de Kinderen, Reina J A; Kulchaitanaroaj, Puttarin; Pokhrel, Subhash

    2017-06-01

    To identify different types of models used in economic evaluations of smoking cessation, analyse the quality of the included models examining their attributes and ascertain their transferability to a new context. A systematic review of the literature on the economic evaluation of smoking cessation interventions published between 1996 and April 2015, identified via Medline, EMBASE, National Health Service (NHS) Economic Evaluation Database (NHS EED), Health Technology Assessment (HTA). The checklist-based quality of the included studies and transferability scores was based on the European Network of Health Economic Evaluation Databases (EURONHEED) criteria. Studies that were not in smoking cessation, not original research, not a model-based economic evaluation, that did not consider adult population and not from a high-income country were excluded. Among the 64 economic evaluations included in the review, the state-transition Markov model was the most frequently used method (n = 30/64), with quality adjusted life years (QALY) being the most frequently used outcome measure in a life-time horizon. A small number of the included studies (13 of 64) were eligible for EURONHEED transferability checklist. The overall transferability scores ranged from 0.50 to 0.97, with an average score of 0.75. The average score per section was 0.69 (range = 0.35-0.92). The relative transferability of the studies could not be established due to a limitation present in the EURONHEED method. All existing economic evaluations in smoking cessation lack in one or more key study attributes necessary to be fully transferable to a new context. © 2017 The Authors. Addiction published by John Wiley & Sons Ltd on behalf of Society for the Study of Addiction.

  19. Measurement of physical characteristics of materials by ultrasonic methods

    DOEpatents

    Lu, Wei-yang; Min, Shermann

    1998-01-01

    A method is described for determining and evaluating physical characteristics of a material. In particular, the present invention provides for determining and evaluating the anisotropic characteristics of materials, especially those resulting from such manufacturing processes as rolling, forming, extruding, drawing, forging, etc. In operation, a complex ultrasonic wave is created in the material of interest by any method. The wave form may be any combination of wave types and modes and is not limited to fundamental plate modes. The velocity of propagation of selected components which make up the complex ultrasonic wave are measured and evaluated to determine the physical characteristics of the material including, texture, strain/stress, grain size, crystal structure, etc.

  20. Measurement of physical characteristics of materials by ultrasonic methods

    DOEpatents

    Lu, W.Y.; Min, S.

    1998-09-08

    A method is described for determining and evaluating physical characteristics of a material. In particular, the present invention provides for determining and evaluating the anisotropic characteristics of materials, especially those resulting from such manufacturing processes as rolling, forming, extruding, drawing, forging, etc. In operation, a complex ultrasonic wave is created in the material of interest by any method. The wave form may be any combination of wave types and modes and is not limited to fundamental plate modes. The velocity of propagation of selected components which make up the complex ultrasonic wave are measured and evaluated to determine the physical characteristics of the material including, texture, strain/stress, grain size, crystal structure, etc. 14 figs.

  1. Roles and methods of performance evaluation of hospital academic leadership.

    PubMed

    Zhou, Ying; Yuan, Huikang; Li, Yang; Zhao, Xia; Yi, Lihua

    2016-01-01

    The rapidly advancing implementation of public hospital reform urgently requires the identification and classification of a pool of exceptional medical specialists, corresponding with incentives to attract and retain them, providing a nucleus of distinguished expertise to ensure public hospital preeminence. This paper examines the significance of academic leadership, from a strategic management perspective, including various tools, methods and mechanisms used in the theory and practice of performance evaluation, and employed in the selection, training and appointment of academic leaders. Objective methods of assessing leadership performance are also provided for reference.

  2. A school-based interdisciplinary approach to promote health and academic achievement among children in a deprived neighborhood: study protocol for a mixed-methods evaluation.

    PubMed

    Abrahamse, Mariëlle E; Jonkman, Caroline S; Harting, Janneke

    2018-04-10

    The large number of children that grow up in poverty is concerning, especially given the negative developmental outcomes that can persist into adulthood. Poverty has been found as a risk factor to negatively affect academic achievement and health outcomes in children. Interdisciplinary interventions can be an effective way to promote health and academic achievement. The present study aims to evaluate a school-based interdisciplinary approach on child health, poverty, and academic achievement using a mixed-method design. Generally taken, outcomes of this study increase the knowledge about effective ways to give disadvantaged children equal chances early in their lives. An observational study with a mixed-methods design including both quantitative and qualitative data collection methods will be used to evaluate the interdisciplinary approach. The overall research project exists of three study parts including a longitudinal study, a cross-sectional study, and a process evaluation. Using a multi-source approach we will assess child health as the primary outcome. Child poverty and child academic achievement will be assessed as secondary outcomes. The process evaluation will observe the program's effects on the school environment and the program's implementation in order to obtain more knowledge on how to disseminate the interdisciplinary approach to other schools and neighborhoods. The implementation of a school-based interdisciplinary approach via primary schools combining the cross-sectoral domains health, poverty, and academic achievement is innovative and a step forward to reach an ethnic minority population. However, the large variety of the interventions and activities within the approach can limit the validity of the study. Including a process evaluation will therefore help to improve the interpretation of our findings. In order to contribute to policy and practice focusing on decreasing the unequal chances of children growing up in deprived neighborhoods, it is important to study whether the intervention leads to positive developmental outcomes in children. ( NTR 6571 ) (retrospectively registered on August 4, 2017).

  3. Evaluation of methods for managing censored results when calculating the geometric mean.

    PubMed

    Mikkonen, Hannah G; Clarke, Bradley O; Dasika, Raghava; Wallis, Christian J; Reichman, Suzie M

    2018-01-01

    Currently, there are conflicting views on the best statistical methods for managing censored environmental data. The method commonly applied by environmental science researchers and professionals is to substitute half the limit of reporting for derivation of summary statistics. This approach has been criticised by some researchers, raising questions around the interpretation of historical scientific data. This study evaluated four complete soil datasets, at three levels of simulated censorship, to test the accuracy of a range of censored data management methods for calculation of the geometric mean. The methods assessed included removal of censored results, substitution of a fixed value (near zero, half the limit of reporting and the limit of reporting), substitution by nearest neighbour imputation, maximum likelihood estimation, regression on order substitution and Kaplan-Meier/survival analysis. This is the first time such a comprehensive range of censored data management methods have been applied to assess the accuracy of calculation of the geometric mean. The results of this study show that, for describing the geometric mean, the simple method of substitution of half the limit of reporting is comparable or more accurate than alternative censored data management methods, including nearest neighbour imputation methods. Copyright © 2017 Elsevier Ltd. All rights reserved.

  4. Early economic evaluation of emerging health technologies: protocol of a systematic review

    PubMed Central

    2014-01-01

    Background The concept of early health technology assessment, discussed well over a decade, has now been collaboratively implemented by industry, government, and academia to select and expedite the development of emerging technologies that may address the needs of patients and health systems. Early economic evaluation is essential to assess the value of emerging technologies, but empirical data to inform the current practice of early evaluation is limited. We propose a systematic review of early economic evaluation studies in order to better understand the current practice. Methods/design This protocol describes a systematic review of economic evaluation studies of regulated health technologies in which the evaluation is conducted prior to regulatory approval and when the technology effectiveness is not well established. Included studies must report an economic evaluation, defined as the comparative analysis of alternatives with respect to their associated costs and health consequences, and must evaluate some regulated health technology such as pharmaceuticals, biologics, high-risk medical devices, or biomarkers. We will conduct the literature search on multiple databases, including MEDLINE, EMBASE, the Centre for Reviews and Dissemination Databases, and EconLit. Additional citations will be identified via scanning reference lists and author searching. We suspect that many early economic evaluation studies are unpublished, especially those conducted for internal use only. Additionally, we use a chain-referral sampling approach to identify authors of unpublished studies who work in technology discovery and development, starting out with our contact lists and authors who published relevant studies. Citation screening and full-text review will be conducted by pairs of reviewers. Abstracted data will include those related to the decision context and decision problem of the early evaluation, evaluation methods (e.g., data sources, methods, and assumptions used to identify, measure, and value the likely effectiveness and the costs and consequences of the new technology, handling of uncertainty), and whether the study results adequately address the main study question or objective. Data will be summarized overall and stratified by publication status. Discussion This study is timely to inform early economic evaluation practice, given the international trend in early health technology assessment initiatives. PMID:25055987

  5. Evaluating the impact of geologic heritage on Earth science literacy: Adapting best practices from pedagogy and interpretation (Invited)

    NASA Astrophysics Data System (ADS)

    Semken, S. C.

    2013-12-01

    How might we authentically and practically evaluate the effects of a geologic heritage place or program on public Earth science literacy? This pedagogical form of evaluation is distinct from the evaluation of a place for its geological importance, heritage value, economic or cultural impact, and so on. Best evaluation practices from the realms of formal education, informal education, and interpretation start with a coherent set of evaluable learning outcomes, ideally recapitulated in one or more 'big ideas' that capture the essential attributes of the place or program. Learning outcomes may be classified as cognitive, affective, or psychomotor. Cognitive learning outcomes in a geoheritage context are the Earth-science concepts a visitor or student would be expected to uncover through on-site or virtual exploration of the stratigraphy, structure, landforms, and processes in a place. The Earth Science Literacy Principles (ESLP), and similar literacy documents relating to atmosphere, oceans, and climate; offer a template for mapping localized concepts onto more global ones. Quantitative instruments to evaluate understanding of the ESLP are in development, and the ESLP also map directly onto measures used in formal educational assessment, notably the Next Generation Science Standards in the USA. Nongeological place meanings (a component of sense of place) may suggest other cognitive outcomes. Affective learning outcomes for visitors and students in geoheritage sites are less readily defined, but may include place attachment (also a component of sense of place), attitudes, and interest. Multiple quantitative and qualitative methods of evaluating these outcomes exist. Psychomotor learning outcomes are even muddier, but accessibility (defined by statutes) offers a potential starting point. In practice, evaluation may be conducted synchronously or asynchronously with visitors' or students' interaction with the geoheritage place or program. Evaluation programs are typically constrained by access and practicality. Synchronous methods include observation, semi-structured interviews, rapid prototyping and surveys. Asynchronous methods include interviews, surveys, and tracking. Evaluation tools may require content or instrument validation for the specific context in which they are used. Illustrative examples from evaluation of public engagement with geoheritage places (National Parks) in the Southwest USA will be offered.

  6. Using multiple methods to assess learning and outcomes in an online degree-granting dental hygiene program.

    PubMed

    Springfield, Emily; Gwozdek, Anne E; Peet, Melissa; Kerschbaum, Wendy E

    2012-04-01

    Program evaluation is a necessary component of curricular change and innovation. It ascertains whether an innovation has met benchmarks and contributes to the body of knowledge about educational methodologies and supports the use of evidence-based practice in teaching. Education researchers argue that rigorous program evaluation should utilize a mixed-method approach, triangulating both qualitative and quantitative methods to understand program effectiveness. This approach was used to evaluate the University of Michigan Dental Hygiene Degree Completion E-Learning (online) Program. Quantitative data included time spent on coursework, grades, publications, course evaluation results, and survey responses. Qualitative data included student and faculty responses in focus groups and on surveys as well as students' portfolio reflections. The results showed the program was academically rigorous, fostering students' ability to connect theory with practice and apply evidence-based practice principles. These results also demonstrated that the students had learned to critically reflect on their practice and develop expanded professional identities; going beyond the role of clinician, they began to see themselves as educators, advocates, and researchers. This evaluation model is easily adaptable and is applicable to any health science or other professional degree program. This study also raised important questions regarding the effect of meta-reflection on student confidence and professional behavior.

  7. A Review of Hazard Anticipation Training Programs for Young Drivers

    PubMed Central

    McDonald, Catherine C.; Goodwin, Arthur H.; Pradhan, Anuj K.; Romoser, Matthew R.E.; Williams, Allan F.

    2015-01-01

    Purpose Poor hazard anticipation skills are a risk factor associated with high motor vehicle crash rates of young drivers. A number of programs have been developed to improve these skills. The purpose of this review was to assess the empirical literature on hazard anticipation training for young drivers. Methods Studies were included if they: 1) included an assessment of hazard anticipation training outcomes; 2) were published between January 1, 1980 and December 31, 2013 in an English language peer-reviewed journal or conference proceeding; and 3) included at least one group that uniquely comprised a cohort of participants <21 years. Nineteen studies met inclusion criteria. Results Studies used a variety of training methods including interactive computer programs, videos, simulation, commentary driving, or a combination of approaches. Training effects were predominantly measured through computer-based testing and driving simulation with eye tracking. Four studies included an on-road evaluation. Most studies evaluated short-term outcomes (immediate or few days). In all studies, young drivers showed improvement in selected hazard anticipation outcomes, but none investigated crash effects. Conclusions Although there is promise in existing programs, future research should include long-term follow up, evaluate crash outcomes, and assess the optimal timing of hazard anticipation training taking into account the age and experience level of young drivers. PMID:26112734

  8. Effective evaluation of privacy protection techniques in visible and thermal imagery

    NASA Astrophysics Data System (ADS)

    Nawaz, Tahir; Berg, Amanda; Ferryman, James; Ahlberg, Jörgen; Felsberg, Michael

    2017-09-01

    Privacy protection may be defined as replacing the original content in an image region with a (less intrusive) content having modified target appearance information to make it less recognizable by applying a privacy protection technique. Indeed, the development of privacy protection techniques also needs to be complemented with an established objective evaluation method to facilitate their assessment and comparison. Generally, existing evaluation methods rely on the use of subjective judgments or assume a specific target type in image data and use target detection and recognition accuracies to assess privacy protection. An annotation-free evaluation method that is neither subjective nor assumes a specific target type is proposed. It assesses two key aspects of privacy protection: "protection" and "utility." Protection is quantified as an appearance similarity, and utility is measured as a structural similarity between original and privacy-protected image regions. We performed an extensive experimentation using six challenging datasets (having 12 video sequences), including a new dataset (having six sequences) that contains visible and thermal imagery. The new dataset is made available online for the community. We demonstrate effectiveness of the proposed method by evaluating six image-based privacy protection techniques and also show comparisons of the proposed method over existing methods.

  9. Comparative analysis of quantitative efficiency evaluation methods for transportation networks

    PubMed Central

    He, Yuxin; Hong, Jian

    2017-01-01

    An effective evaluation of transportation network efficiency could offer guidance for the optimal control of urban traffic. Based on the introduction and related mathematical analysis of three quantitative evaluation methods for transportation network efficiency, this paper compares the information measured by them, including network structure, traffic demand, travel choice behavior and other factors which affect network efficiency. Accordingly, the applicability of various evaluation methods is discussed. Through analyzing different transportation network examples it is obtained that Q-H method could reflect the influence of network structure, traffic demand and user route choice behavior on transportation network efficiency well. In addition, the transportation network efficiency measured by this method and Braess’s Paradox can be explained with each other, which indicates a better evaluation of the real operation condition of transportation network. Through the analysis of the network efficiency calculated by Q-H method, it can also be drawn that a specific appropriate demand is existed to a given transportation network. Meanwhile, under the fixed demand, both the critical network structure that guarantees the stability and the basic operation of the network and a specific network structure contributing to the largest value of the transportation network efficiency can be identified. PMID:28399165

  10. Comparative analysis of quantitative efficiency evaluation methods for transportation networks.

    PubMed

    He, Yuxin; Qin, Jin; Hong, Jian

    2017-01-01

    An effective evaluation of transportation network efficiency could offer guidance for the optimal control of urban traffic. Based on the introduction and related mathematical analysis of three quantitative evaluation methods for transportation network efficiency, this paper compares the information measured by them, including network structure, traffic demand, travel choice behavior and other factors which affect network efficiency. Accordingly, the applicability of various evaluation methods is discussed. Through analyzing different transportation network examples it is obtained that Q-H method could reflect the influence of network structure, traffic demand and user route choice behavior on transportation network efficiency well. In addition, the transportation network efficiency measured by this method and Braess's Paradox can be explained with each other, which indicates a better evaluation of the real operation condition of transportation network. Through the analysis of the network efficiency calculated by Q-H method, it can also be drawn that a specific appropriate demand is existed to a given transportation network. Meanwhile, under the fixed demand, both the critical network structure that guarantees the stability and the basic operation of the network and a specific network structure contributing to the largest value of the transportation network efficiency can be identified.

  11. Methods to Evaluate the Effects of Internet-Based Digital Health Interventions for Citizens: Systematic Review of Reviews.

    PubMed

    Zanaboni, Paolo; Ngangue, Patrice; Mbemba, Gisele Irène Claudine; Schopf, Thomas Roger; Bergmo, Trine Strand; Gagnon, Marie-Pierre

    2018-06-07

    Digital health can empower citizens to manage their health and address health care system problems including poor access, uncoordinated care and increasing costs. Digital health interventions are typically complex interventions. Therefore, evaluations present methodological challenges. The objective of this study was to provide a systematic overview of the methods used to evaluate the effects of internet-based digital health interventions for citizens. Three research questions were addressed to explore methods regarding approaches (study design), effects and indicators. We conducted a systematic review of reviews of the methods used to measure the effects of internet-based digital health interventions for citizens. The protocol was developed a priori according to Preferred Reporting Items for Systematic review and Meta-Analysis Protocols and the Cochrane Collaboration methodology for overviews of reviews. Qualitative, mixed-method, and quantitative reviews published in English or French from January 2010 to October 2016 were included. We searched for published reviews in PubMed, EMBASE, The Cochrane Database of Systematic Reviews, CINHAL and Epistemonikos. We categorized the findings based on a thematic analysis of the reviews structured around study designs, indicators, types of interventions, effects and perspectives. A total of 20 unique reviews were included. The most common digital health interventions for citizens were patient portals and patients' access to electronic health records, covered by 10/20 (50%) and 6/20 (30%) reviews, respectively. Quantitative approaches to study design included observational study (15/20 reviews, 75%), randomized controlled trial (13/20 reviews, 65%), quasi-experimental design (9/20 reviews, 45%), and pre-post studies (6/20 reviews, 30%). Qualitative studies or mixed methods were reported in 13/20 (65%) reviews. Five main categories of effects were identified: (1) health and clinical outcomes, (2) psychological and behavioral outcomes, (3) health care utilization, (4) system adoption and use, and (5) system attributes. Health and clinical outcomes were measured with both general indicators and disease-specific indicators and reported in 11/20 (55%) reviews. Patient-provider communication and patient satisfaction were the most investigated psychological and behavioral outcomes, reported in 13/20 (65%) and 12/20 (60%) reviews, respectively. Evaluation of health care utilization was included in 8/20 (40%) reviews, most of which focused on the economic effects on the health care system. Although observational studies and surveys have provided evidence of benefits and satisfaction for patients, there is still little reliable evidence from randomized controlled trials of improved health outcomes. Future evaluations of digital health interventions for citizens should focus on specific populations or chronic conditions which are more likely to achieve clinically meaningful benefits and use high-quality approaches such as randomized controlled trials. Implementation research methods should also be considered. We identified a wide range of effects and indicators, most of which focused on patients as main end users. Implications for providers and the health system should also be included in evaluations or monitoring of digital health interventions. ©Paolo Zanaboni, Patrice Ngangue, Gisele Irène Claudine Mbemba, Thomas Roger Schopf, Trine Strand Bergmo, Marie-Pierre Gagnon. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 07.06.2018.

  12. [Methodological quality and reporting quality evaluation of randomized controlled trials published in China Journal of Chinese Materia Medica].

    PubMed

    Yu, Dan-Dan; Xie, Yan-Ming; Liao, Xing; Zhi, Ying-Jie; Jiang, Jun-Jie; Chen, Wei

    2018-02-01

    To evaluate the methodological quality and reporting quality of randomized controlled trials(RCTs) published in China Journal of Chinese Materia Medica, we searched CNKI and China Journal of Chinese Materia webpage to collect RCTs since the establishment of the magazine. The Cochrane risk of bias assessment tool was used to evaluate the methodological quality of RCTs. The CONSORT 2010 list was adopted as reporting quality evaluating tool. Finally, 184 RCTs were included and evaluated methodologically, of which 97 RCTs were evaluated with reporting quality. For the methodological evaluating, 62 trials(33.70%) reported the random sequence generation; 9(4.89%) trials reported the allocation concealment; 25(13.59%) trials adopted the method of blinding; 30(16.30%) trials reported the number of patients withdrawing, dropping out and those lost to follow-up;2 trials （1.09%） reported trial registration and none of the trial reported the trial protocol; only 8(4.35%) trials reported the sample size estimation in details. For reporting quality appraising, 3 reporting items of 25 items were evaluated with high-quality,including: abstract, participants qualified criteria, and statistical methods; 4 reporting items with medium-quality, including purpose, intervention, random sequence method, and data collection of sites and locations; 9 items with low-quality reporting items including title, backgrounds, random sequence types, allocation concealment, blindness, recruitment of subjects, baseline data, harms, and funding;the rest of items were of extremely low quality(the compliance rate of reporting item<10%). On the whole, the methodological and reporting quality of RCTs published in the magazine are generally low. Further improvement in both methodological and reporting quality for RCTs of traditional Chinese medicine are warranted. It is recommended that the international standards and procedures for RCT design should be strictly followed to conduct high-quality trials. At the same time, in order to improve the reporting quality of randomized controlled trials, CONSORT standards should be adopted in the preparation of research reports and submissions. Copyright© by the Chinese Pharmaceutical Association.

  13. A comparison of web-based and paper-based survey methods: testing assumptions of survey mode and response cost.

    PubMed

    Greenlaw, Corey; Brown-Welty, Sharon

    2009-10-01

    Web-based surveys have become more prevalent in areas such as evaluation, research, and marketing research to name a few. The proliferation of these online surveys raises the question, how do response rates compare with traditional surveys and at what cost? This research explored response rates and costs for Web-based surveys, paper surveys, and mixed-mode surveys. The participants included evaluators from the American Evaluation Association (AEA). Results included that mixed-mode, while more expensive, had higher response rates.

  14. Seismic data fusion anomaly detection

    NASA Astrophysics Data System (ADS)

    Harrity, Kyle; Blasch, Erik; Alford, Mark; Ezekiel, Soundararajan; Ferris, David

    2014-06-01

    Detecting anomalies in non-stationary signals has valuable applications in many fields including medicine and meteorology. These include uses such as identifying possible heart conditions from an Electrocardiography (ECG) signals or predicting earthquakes via seismographic data. Over the many choices of anomaly detection algorithms, it is important to compare possible methods. In this paper, we examine and compare two approaches to anomaly detection and see how data fusion methods may improve performance. The first approach involves using an artificial neural network (ANN) to detect anomalies in a wavelet de-noised signal. The other method uses a perspective neural network (PNN) to analyze an arbitrary number of "perspectives" or transformations of the observed signal for anomalies. Possible perspectives may include wavelet de-noising, Fourier transform, peak-filtering, etc.. In order to evaluate these techniques via signal fusion metrics, we must apply signal preprocessing techniques such as de-noising methods to the original signal and then use a neural network to find anomalies in the generated signal. From this secondary result it is possible to use data fusion techniques that can be evaluated via existing data fusion metrics for single and multiple perspectives. The result will show which anomaly detection method, according to the metrics, is better suited overall for anomaly detection applications. The method used in this study could be applied to compare other signal processing algorithms.

  15. [A clinical study on different decompression methods in cervical spondylosis].

    PubMed

    Ma, Xun; Zhao, Xiao-fei; Zhao, Yi-bo

    2009-04-15

    To analyze the different decompression methods to treat cervical spondylosis based on imageological evaluation. Two hundred and sixty three consecutive patients with cervical spondylosis between Nov. 2004 and Oct. 2007 were involved in this study. Patients were distributed to different operation groups based on the preoperative imageological evaluation, including anterior or posterior decompression methods. The Anterior method is to use the discectomy of one to three segments, autogenous iliac graft or titanium mesh or cage fusion and titanium plate fixation, or subtotal vertebrectomy of one to two segments autogenous iliac graft or titanium mesh fusion and titanium plate fixation, or discectomy plus subtotal vertebrectomy, The posterior expansive single open door laminoplasty and other operation types. All the patients were divided into different groups by the preoperative imageological evaluation, age, sex and course of diseases. Then we collected each group's preoperative and postoperative JOA scores and mean improvement rate to evaluate the postoperative effect by different decompression methods. Two hundred and thirty five patients were followed up with a mean period of 18 months (range, 4 to 36 months). JOA scores of all patients were improved by different degrees after operations. Anterior and posterior decompression methods both can achieve higher mean improvement rates. There were no significant differences in mean improvement rates between anterior groups, and so did male and female (P > 0.05). The effect will decrease as age increases or the course of disease prolongs. Statistical significance existed among the different age groups and between course groups (P < 0.05). Anterior and posterior decompression methods both can achieve good effect. The key point is to choose the surgical indication correctly, decompress thoroughly, and make the fusion reliable and fixation firm. In regard to the patients' imageological evaluation, the methods should be differentiated. The anterior operation type included discectomy of one to three segments, subtotal vertebrectomy of one to two segments and discectomy plus subtotal vertebra ectomy.

  16. Methods for evaluating a mature substance abuse prevention/early intervention program.

    PubMed

    Becker, L R; Hall, M; Fisher, D A; Miller, T R

    2000-05-01

    The authors describe methods for work in progress to evaluate four workplace prevention and/or early intervention programs designed to change occupational norms and reduce substance abuse at a major U.S. transportation company. The four programs are an employee assistance program, random drug testing, managed behavioral health care, and a peer-led intervention program. An elaborate mixed-methods evaluation combines data collection and analysis techniques from several traditions. A process-improvement evaluation focuses on the peer-led component to describe its evolution, document the implementation process for those interested in replicating it, and provide information for program improvement. An outcome-assessment evaluation examines impacts of the four programs on job performance measures (e.g., absenteeism, turnover, injury, and disability rates) and includes a cost-offset and employer cost-savings analysis. Issues related to using archival data, combining qualitative and quantitative designs, and working in a corporate environment are discussed.

  17. Computer-implemented security evaluation methods, security evaluation systems, and articles of manufacture

    DOEpatents

    Muller, George; Perkins, Casey J.; Lancaster, Mary J.; MacDonald, Douglas G.; Clements, Samuel L.; Hutton, William J.; Patrick, Scott W.; Key, Bradley Robert

    2015-07-28

    Computer-implemented security evaluation methods, security evaluation systems, and articles of manufacture are described. According to one aspect, a computer-implemented security evaluation method includes accessing information regarding a physical architecture and a cyber architecture of a facility, building a model of the facility comprising a plurality of physical areas of the physical architecture, a plurality of cyber areas of the cyber architecture, and a plurality of pathways between the physical areas and the cyber areas, identifying a target within the facility, executing the model a plurality of times to simulate a plurality of attacks against the target by an adversary traversing at least one of the areas in the physical domain and at least one of the areas in the cyber domain, and using results of the executing, providing information regarding a security risk of the facility with respect to the target.

  18. An Approach to the Evaluation of Hypermedia.

    ERIC Educational Resources Information Center

    Knussen, Christina; And Others

    1991-01-01

    Discusses methods that may be applied to the evaluation of hypermedia, based on six models described by Lawton. Techniques described include observation, self-report measures, interviews, automated measures, psychometric tests, checklists and criterion-based techniques, process models, Experimentally Measuring Usability (EMU), and a naturalistic…

  19. Informal Evaluation.

    ERIC Educational Resources Information Center

    Engel, Brenda S.

    Intended for non-experts in evaluative techniques, this monograph presents suggestions and examples for assessing: (1) the child; (2) the classroom; and (3) the program or the school. Illustrative techniques of recordkeeping are presented. Methods of collecting data include documentation and formal records. Techniques to be used during evaluation…

  20. Evaluation and Education of Children with Brain Damage.

    ERIC Educational Resources Information Center

    Bortner, Morton, Ed.

    Ten papers consider brain damaged children. Brain damage is considered as an educational category, and the following aspects of evaluation are treated: disorders of oral communication, hearing impairment, psychological deficit, psychiatric factors, and neurological considerations. Educational strategies discussed include the educational methods of…

  1. SITE EVALUATION OF SOIL AMENDMENT TECHNOLOGIES AT THE CROOKSVILLE/ROSEVILLE POTTERY AREA OF CONCERN - STAR ORGANICS SOIL RESCUE CAPSULE

    EPA Science Inventory

    This report briefly summarizes Star Organics treatment technology demonstration of a soil amendment process for lead contaminated soil at Roseville, OH. The evaluation included leaching, bioavailability, geotechnical, and geochemical testing methods.

  2. Toolbox for Evaluating Residents as Teachers

    ERIC Educational Resources Information Center

    Coverdale, John H.; Ismail, Nadia; Mian, Ayesha; Dewey, Charlene

    2010-01-01

    Objective: The authors review existing assessment tools related to evaluating residents' teaching skills and teaching effectiveness. Methods: PubMed and PsycInfo databases were searched using combinations of keywords including "residents," "residents as teachers," "teaching skills," and "assessments" or "rating scales." Results: Eleven evaluation…

  3. USE OF ZEOLITE FOR REMOVING AMMONIA AND AMMONIA-CAUSED TOXCITY IN MARINE TOXICITY IDENTIFCATION EVALUATIONS (TIES)

    EPA Science Inventory

    Ammonia occurs in marine waters including effluents, receiving waters, and sediment interstitial waters. At sufficiently high concentrations, ammonia can be toxic to aquatic species. Toxicity identification evaluation (TIE) methods provide researchers with tools for identifyi...

  4. Obesity educational interventions in U.S. medical schools: a systematic review and identified gaps.

    PubMed

    Vitolins, Mara Z; Crandall, Sonia; Miller, David; Ip, Eddie; Marion, Gail; Spangler, John G

    2012-01-01

    Obesity is the second leading cause of preventable death in the United States. However, physicians feel poorly trained to address the obesity epidemic. This article examines effective training methods for overweight and obesity intervention in undergraduate medical education. Using indexing terms related to overweight, obesity, and medical student education, we conducted a literature searched PubMed PsycINFO, Cochrane, and ERIC for relevant articles in English. References from articles identified were also reviewed to located additional articles. We included all studies that incorporated process or outcome evaluations of obesity educational interventions for U.S. medical students. Of an initial 168 citations, 40 abstracts were retrieved; 11 studies were found to be pertinent to medical student obesity education, but only 5 included intervention and evaluation elements. Quality criteria for inclusion consisted of explicit evaluation of the educational methods used. Data extraction identified participants (e.g., year of medical students), interventions, evaluations, and results. These 5 studies successfully used a variety of teaching methods including hands on training, didactic lectures, role-playing, and standardized patient interaction to increase medical students' knowledge, attitudes, and skills regarding overweight and obesity intervention. Two studies addressed medical student bias toward overweight and obese patients. No studies addressed health disparities in the epidemiology and bias of obesity. Despite the commonly cited "obesity epidemic," there are very few published studies that report the effectiveness of medical school obesity educational programs. Gaps still exist within undergraduate medical education including specific training that addresses obesity and long-term studies showing that such training is retained.

  5. Solid lubricants: A survey

    NASA Technical Reports Server (NTRS)

    Campbell, M. E.

    1972-01-01

    A survey is presented of the most recent developments and trends in the field of solid lubrication. Topics discussed include: a history of solid lubrication, lubricating solids, bonded lubricants, new developments, methods of evaluation, environmental effects, application methods, novel materials, and designs for the use of solid lubricants. Excerpts of solid lubricant specifications and a discussion of contact stresses imposed on specimens in three types of test machines used for the evaluation of solid lubricants are presented.

  6. Evaluation of forensic DNA mixture evidence: protocol for evaluation, interpretation, and statistical calculations using the combined probability of inclusion.

    PubMed

    Bieber, Frederick R; Buckleton, John S; Budowle, Bruce; Butler, John M; Coble, Michael D

    2016-08-31

    The evaluation and interpretation of forensic DNA mixture evidence faces greater interpretational challenges due to increasingly complex mixture evidence. Such challenges include: casework involving low quantity or degraded evidence leading to allele and locus dropout; allele sharing of contributors leading to allele stacking; and differentiation of PCR stutter artifacts from true alleles. There is variation in statistical approaches used to evaluate the strength of the evidence when inclusion of a specific known individual(s) is determined, and the approaches used must be supportable. There are concerns that methods utilized for interpretation of complex forensic DNA mixtures may not be implemented properly in some casework. Similar questions are being raised in a number of U.S. jurisdictions, leading to some confusion about mixture interpretation for current and previous casework. Key elements necessary for the interpretation and statistical evaluation of forensic DNA mixtures are described. Given the most common method for statistical evaluation of DNA mixtures in many parts of the world, including the USA, is the Combined Probability of Inclusion/Exclusion (CPI/CPE). Exposition and elucidation of this method and a protocol for use is the focus of this article. Formulae and other supporting materials are provided. Guidance and details of a DNA mixture interpretation protocol is provided for application of the CPI/CPE method in the analysis of more complex forensic DNA mixtures. This description, in turn, should help reduce the variability of interpretation with application of this methodology and thereby improve the quality of DNA mixture interpretation throughout the forensic community.

  7. Protocol for the process evaluation of a complex intervention designed to increase the use of research in health policy and program organisations (the SPIRIT study).

    PubMed

    Haynes, Abby; Brennan, Sue; Carter, Stacy; O'Connor, Denise; Schneider, Carmen Huckel; Turner, Tari; Gallego, Gisselle

    2014-09-27

    Process evaluation is vital for understanding how interventions function in different settings, including if and why they have different effects or do not work at all. This is particularly important in trials of complex interventions in 'real world' organisational settings where causality is difficult to determine. Complexity presents challenges for process evaluation, and process evaluations that tackle complexity are rarely reported. This paper presents the detailed protocol for a process evaluation embedded in a randomised trial of a complex intervention known as SPIRIT (Supporting Policy In health with Research: an Intervention Trial). SPIRIT aims to build capacity for using research in health policy and program agencies. We describe the flexible and pragmatic methods used for capturing, managing and analysing data across three domains: (a) the intervention as it was implemented; (b) how people participated in and responded to the intervention; and (c) the contextual characteristics that mediated this relationship and may influence outcomes. Qualitative and quantitative data collection methods include purposively sampled semi-structured interviews at two time points, direct observation and coding of intervention activities, and participant feedback forms. We provide examples of the data collection and data management tools developed. This protocol provides a worked example of how to embed process evaluation in the design and evaluation of a complex intervention trial. It tackles complexity in the intervention and its implementation settings. To our knowledge, it is the only detailed example of the methods for a process evaluation of an intervention conducted as part of a randomised trial in policy organisations. We identify strengths and weaknesses, and discuss how the methods are functioning during early implementation. Using 'insider' consultation to develop methods is enabling us to optimise data collection while minimising discomfort and burden for participants. Embedding the process evaluation within the trial design is facilitating access to data, but may impair participants' willingness to talk openly in interviews. While it is challenging to evaluate the process of conducting a randomised trial of a complex intervention, our experience so far suggests that it is feasible and can add considerably to the knowledge generated.

  8. GoActive: a protocol for the mixed methods process evaluation of a school-based physical activity promotion programme for 13-14year old adolescents.

    PubMed

    Jong, Stephanie T; Brown, Helen Elizabeth; Croxson, Caroline H D; Wilkinson, Paul; Corder, Kirsten L; van Sluijs, Esther M F

    2018-05-21

    Process evaluations are critical for interpreting and understanding outcome trial results. By understanding how interventions function across different settings, process evaluations have the capacity to inform future dissemination of interventions. The complexity of Get others Active (GoActive), a 12-week, school-based physical activity intervention implemented in eight schools, highlights the need to investigate how implementation is achieved across a variety of school settings. This paper describes the mixed methods GoActive process evaluation protocol that is embedded within the outcome evaluation. In this detailed process evaluation protocol, we describe the flexible and pragmatic methods that will be used for capturing the process evaluation data. A mixed methods design will be used for the process evaluation, including quantitative data collected in both the control and intervention arms of the GoActive trial, and qualitative data collected in the intervention arm. Data collection methods will include purposively sampled, semi-structured interviews and focus group interviews, direct observation, and participant questionnaires (completed by students, teachers, older adolescent mentors, and local authority-funded facilitators). Data will be analysed thematically within and across datasets. Overall synthesis of findings will address the process of GoActive implementation, and through which this process affects outcomes, with careful attention to the context of the school environment. This process evaluation will explore the experience of participating in GoActive from the perspectives of key groups, providing a greater understanding of the acceptability and process of implementation of the intervention across the eight intervention schools. This will allow for appraisal of the intervention's conceptual base, inform potential dissemination, and help optimise post-trial sustainability. The process evaluation will also assist in contextualising the trial effectiveness results with respect to how the intervention may or may not have worked and, if it was found to be effective, what might be required for it to be sustained in the 'real world'. Furthermore, it will offer suggestions for the development and implementation of future initiatives to promote physical activity within schools. ISRCTN, ISRCTN31583496 . Registered on 18 February 2014.

  9. Operating manual-based usability evaluation of medical devices: an effective patient safety screening method.

    PubMed

    Turley, James P; Johnson, Todd R; Smith, Danielle Paige; Zhang, Jaijie; Brixey, Juliana J

    2006-04-01

    Use of medical devices often directly contributes to medical errors. Because it is difficult or impossible to change the design of existing devices, the best opportunity for improving medical device safety is during the purchasing process. However, most hospital personnel are not familiar with the usability evaluation methods designed to identify aspects of a user interface that do not support intuitive and safe use. A review of medical device operating manuals is proposed as a more practical method of usability evaluation. Operating manuals for five volumetric infusion pumps from three manufacturers were selected for this study (January-April 2003). Each manual's safety message content was evaluated to determine whether the message indicated a device design characteristic that violated known usability principles (heuristics) or indicated a violation of an affordance of the device. "Minimize memory load," with 65 violations, was the heuristic violated most frequently across pumps. Variations between pumps, including the frequency and severity of violations for each, were noted. Results suggest that manual review can provide a proxy for heuristic evaluation of the actual medical device. This method, intended to be a component of prepurchasing evaluation, can complement more formal usability evaluation methods and be used to select a subset of devices for more extensive and formal testing.

  10. Methods for analysis of cracks in three-dimensional solids

    NASA Technical Reports Server (NTRS)

    Raju, I. S.; Newman, J. C., Jr.

    1984-01-01

    Analytical and numerical methods evaluating the stress-intensity factors for three-dimensional cracks in solids are presented, with reference to fatigue failure in aerospace structures. The exact solutions for embedded elliptical and circular cracks in infinite solids, and the approximate methods, including the finite-element, the boundary-integral equation, the line-spring models, and the mixed methods are discussed. Among the mixed methods, the superposition of analytical and finite element methods, the stress-difference, the discretization-error, the alternating, and the finite element-alternating methods are reviewed. Comparison of the stress-intensity factor solutions for some three-dimensional crack configurations showed good agreement. Thus, the choice of a particular method in evaluating the stress-intensity factor is limited only to the availability of resources and computer programs.

  11. Method for assessment of stormwater treatment facilities - Synthetic road runoff addition including micro-pollutants and tracer.

    PubMed

    Cederkvist, Karin; Jensen, Marina B; Holm, Peter E

    2017-08-01

    Stormwater treatment facilities (STFs) are becoming increasingly widespread but knowledge on their performance is limited. This is due to difficulties in obtaining representative samples during storm events and documenting removal of the broad range of contaminants found in stormwater runoff. This paper presents a method to evaluate STFs by addition of synthetic runoff with representative concentrations of contaminant species, including the use of tracer for correction of removal rates for losses not caused by the STF. A list of organic and inorganic contaminant species, including trace elements representative of runoff from roads is suggested, as well as relevant concentration ranges. The method was used for adding contaminants to three different STFs including a curbstone extension with filter soil, a dual porosity filter, and six different permeable pavements. Evaluation of the method showed that it is possible to add a well-defined mixture of contaminants despite different field conditions by having a flexibly system, mixing different stock-solutions on site, and use bromide tracer for correction of outlet concentrations. Bromide recovery ranged from only 12% in one of the permeable pavements to 97% in the dual porosity filter, stressing the importance of including a conservative tracer for correction of contaminant retention values. The method is considered useful in future treatment performance testing of STFs. The observed performance of the STFs is presented in coming papers. Copyright © 2017 Elsevier Ltd. All rights reserved.

  12. Numerical simulation of turbulence flow in a Kaplan turbine -Evaluation on turbine performance prediction accuracy-

    NASA Astrophysics Data System (ADS)

    Ko, P.; Kurosawa, S.

    2014-03-01

    The understanding and accurate prediction of the flow behaviour related to cavitation and pressure fluctuation in a Kaplan turbine are important to the design work enhancing the turbine performance including the elongation of the operation life span and the improvement of turbine efficiency. In this paper, high accuracy turbine and cavitation performance prediction method based on entire flow passage for a Kaplan turbine is presented and evaluated. Two-phase flow field is predicted by solving Reynolds-Averaged Navier-Stokes equations expressed by volume of fluid method tracking the free surface and combined with Reynolds Stress model. The growth and collapse of cavitation bubbles are modelled by the modified Rayleigh-Plesset equation. The prediction accuracy is evaluated by comparing with the model test results of Ns 400 Kaplan model turbine. As a result that the experimentally measured data including turbine efficiency, cavitation performance, and pressure fluctuation are accurately predicted. Furthermore, the cavitation occurrence on the runner blade surface and the influence to the hydraulic loss of the flow passage are discussed. Evaluated prediction method for the turbine flow and performance is introduced to facilitate the future design and research works on Kaplan type turbine.

  13. A better way to evaluate remote monitoring programs in chronic disease care: receiver operating characteristic analysis.

    PubMed

    Brown Connolly, Nancy E

    2014-12-01

    This foundational study applies the process of receiver operating characteristic (ROC) analysis to evaluate utility and predictive value of a disease management (DM) model that uses RM devices for chronic obstructive pulmonary disease (COPD). The literature identifies a need for a more rigorous method to validate and quantify evidence-based value for remote monitoring (RM) systems being used to monitor persons with a chronic disease. ROC analysis is an engineering approach widely applied in medical testing, but that has not been evaluated for its utility in RM. Classifiers (saturated peripheral oxygen [SPO2], blood pressure [BP], and pulse), optimum threshold, and predictive accuracy are evaluated based on patient outcomes. Parametric and nonparametric methods were used. Event-based patient outcomes included inpatient hospitalization, accident and emergency, and home health visits. Statistical analysis tools included Microsoft (Redmond, WA) Excel(®) and MedCalc(®) (MedCalc Software, Ostend, Belgium) version 12 © 1993-2013 to generate ROC curves and statistics. Persons with COPD were monitored a minimum of 183 days, with at least one inpatient hospitalization within 12 months prior to monitoring. Retrospective, de-identified patient data from a United Kingdom National Health System COPD program were used. Datasets included biometric readings, alerts, and resource utilization. SPO2 was identified as a predictive classifier, with an optimal average threshold setting of 85-86%. BP and pulse were failed classifiers, and areas of design were identified that may improve utility and predictive capacity. Cost avoidance methodology was developed. RESULTS can be applied to health services planning decisions. Methods can be applied to system design and evaluation based on patient outcomes. This study validated the use of ROC in RM program evaluation.

  14. Large-scale image region documentation for fully automated image biomarker algorithm development and evaluation.

    PubMed

    Reeves, Anthony P; Xie, Yiting; Liu, Shuang

    2017-04-01

    With the advent of fully automated image analysis and modern machine learning methods, there is a need for very large image datasets having documented segmentations for both computer algorithm training and evaluation. This paper presents a method and implementation for facilitating such datasets that addresses the critical issue of size scaling for algorithm validation and evaluation; current evaluation methods that are usually used in academic studies do not scale to large datasets. This method includes protocols for the documentation of many regions in very large image datasets; the documentation may be incrementally updated by new image data and by improved algorithm outcomes. This method has been used for 5 years in the context of chest health biomarkers from low-dose chest CT images that are now being used with increasing frequency in lung cancer screening practice. The lung scans are segmented into over 100 different anatomical regions, and the method has been applied to a dataset of over 20,000 chest CT images. Using this framework, the computer algorithms have been developed to achieve over 90% acceptable image segmentation on the complete dataset.

  15. A conversation-based process tracing method for use with naturalistic decisions: an evaluation study.

    PubMed

    Williamson, J; Ranyard, R; Cuthbert, L

    2000-05-01

    This study is an evaluation of a process tracing method developed for naturalistic decisions, in this case a consumer choice task. The method is based on Huber et al.'s (1997) Active Information Search (AIS) technique, but develops it by providing spoken rather than written answers to respondents' questions, and by including think aloud instructions. The technique is used within a conversation-based situation, rather than the respondent thinking aloud 'into an empty space', as is conventionally the case in think aloud techniques. The method results in a concurrent verbal protocol as respondents make their decisions, and a retrospective report in the form of a post-decision summary. The method was found to be virtually non-reactive in relation to think aloud, although the variable of Preliminary Attribute Elicitation showed some evidence of reactivity. This was a methodological evaluation, and as such the data reported are essentially descriptive. Nevertheless, the data obtained indicate that the method is capable of producing information about decision processes which could have theoretical importance in terms of evaluating models of decision-making.

  16. Evaluation of angiogram visualization methods for fast and reliable aneurysm diagnosis

    NASA Astrophysics Data System (ADS)

    Lesar, Žiga; Bohak, Ciril; Marolt, Matija

    2015-03-01

    In this paper we present the results of an evaluation of different visualization methods for angiogram volumetric data-ray casting, marching cubes, and multi-level partition of unity implicits. There are several options available with ray-casting: isosurface extraction, maximum intensity projection and alpha compositing, each producing fundamentally different results. Different visualization methods are suitable for different needs, so this choice is crucial in diagnosis and decision making processes. We also evaluate visual effects such as ambient occlusion, screen space ambient occlusion, and depth of field. Some visualization methods include transparency, so we address the question of relevancy of this additional visual information. We employ transfer functions to map data values to color and transparency, allowing us to view or hide particular tissues. All the methods presented in this paper were developed using OpenCL, striving for real-time rendering and quality interaction. An evaluation has been conducted to assess the suitability of the visualization methods. Results show superiority of isosurface extraction with ambient occlusion effects. Visual effects may positively or negatively affect perception of depth, motion, and relative positions in space.

  17. Basic Information for EPA's Selected Analytical Methods for Environmental Remediation and Recovery (SAM)

    EPA Pesticide Factsheets

    Contains basic information on the role and origins of the Selected Analytical Methods including the formation of the Homeland Security Laboratory Capacity Work Group and the Environmental Evaluation Analytical Process Roadmap for Homeland Security Events

  18. Damage evaluation and repair methods for prestressed concrete bridge members

    NASA Astrophysics Data System (ADS)

    Shanafelt, G. O.; Horn, W. B.

    1980-11-01

    The types of accidental damage occurring and the severity and frequency of their occurrence are summarized. Practices and equipment used for assessing damage and making repairs are presented and evaluated. Guidelines for inspection, assessing damage, and selection of repair methods are given. Methods of repair includes adding external prestress, a metal sleeve splice, and splicing broken strands or rods. The findings of this study suggest that in some instances better repair techniques should be used. The findings of this study also indicate that proper selection of repair methods may reduce the number of damaged girders presently being replaced. Plausible methods of repair requiring additional research are identified and techniques for testing are outlined.

  19. Comparison of midwifery students' satisfaction with direct observation of procedural skills and current methods in evaluation of procedural skills in Mashhad Nursing and Midwifery School.

    PubMed

    Hoseini, Bibi Leila; Mazloum, Seyed Reza; Jafarnejad, Farzaneh; Foroughipour, Mohsen

    2013-03-01

    The clinical evaluation, as one of the most important elements in medical education, must measure students' competencies and abilities. The implementation of any assessment tool is basically dependent on the acceptance of students. This study tried to assess midwifery students' satisfaction with Direct Observation of Procedural Skills (DOPS) and current clinical evaluation methods. This quasi-experimental study was conducted in the university hospitals affiliated to Mashhad University of Medical Sciences. The subjects comprised 67 undergraduate midwifery students selected by convenience sampling and allocated to control and intervention groups according to the training transposition. Current method was performed in the control group, and DOPS was conducted in the intervention group. The applied tools included DOPS rating scales, logbook, and satisfaction questionnaires with clinical evaluation methods. Validity and reliability of these tools were approved. At the end of training, students' satisfaction with the evaluation methods was assessed by the mentioned tools. The data were analyzed by descriptive and analytical statistics. Satisfaction mean scores of midwifery students with DOPS and current methods were 76.7 ± 12.9 and 62.6 ± 14.7 (out of 100), respectively. DOPS students' satisfaction mean score was significantly higher than the score obtained in current method (P < 0.000). The most satisfactory domains in the current method were "consistence with learning objectives" (71.2 ± 14.9) and "objectiveness" in DOPS (87.9 ± 15.0). In contrast, the least satisfactory domains in the current method were "interested in applying the method" (57.8 ± 26.5) and "number of assessments for each skill" (58.8 ± 25.9) in DOPS method. This study showed that DOPS method is associated with greater students' satisfaction. Since the students' satisfaction with the current method was also acceptable, we recommend combining this new clinical evaluation method with the current method, which covers its weaknesses, to promote the students' satisfaction with clinical evaluation methods in a perfect manner.

  20. Standardization, evaluation and early-phase method validation of an analytical scheme for batch-consistency N-glycosylation analysis of recombinant produced glycoproteins.

    PubMed

    Zietze, Stefan; Müller, Rainer H; Brecht, René

    2008-03-01

    In order to set up a batch-to-batch-consistency analytical scheme for N-glycosylation analysis, several sample preparation steps including enzyme digestions and fluorophore labelling and two HPLC-methods were established. The whole method scheme was standardized, evaluated and validated according to the requirements on analytical testing in early clinical drug development by usage of a recombinant produced reference glycoprotein (RGP). The standardization of the methods was performed by clearly defined standard operation procedures. During evaluation of the methods, the major interest was in the loss determination of oligosaccharides within the analytical scheme. Validation of the methods was performed with respect to specificity, linearity, repeatability, LOD and LOQ. Due to the fact that reference N-glycan standards were not available, a statistical approach was chosen to derive accuracy from the linearity data. After finishing the validation procedure, defined limits for method variability could be calculated and differences observed in consistency analysis could be separated into significant and incidental ones.

  1. Prospective Foreign Language Teachers' Preference of Teaching Methods for the Language Acquisition Course in Turkish Higher Education

    ERIC Educational Resources Information Center

    GüvendIr, Emre

    2013-01-01

    Considering the significance of taking student preferences into account while organizing teaching practices, the current study explores which teaching method prospective foreign language teachers mostly prefer their teacher to use in the language acquisition course. A teaching methods evaluation form that includes six commonly used teaching…

  2. Grading Medical Students in a Psychiatry Clerkship: Correlation with the NBME Subject Examination Scores and Its Implications

    ERIC Educational Resources Information Center

    Ramchandani, Dilip

    2011-01-01

    Background/Objective: The author analyzed and compared various assessment methods for assessment of medical students; these methods included clinical assessment and the standardized National Board of Medical Education (NBME) subject examination. Method: Students were evaluated on their 6-week clerkship in psychiatry by both their clinical…

  3. Evaluation of High-Throughput Chemical Exposure Models via Analysis of Matched Environmental and Biological Media Measurements

    EPA Science Inventory

    The U.S. EPA, under its ExpoCast program, is developing high-throughput near-field modeling methods to estimate human chemical exposure and to provide real-world context to high-throughput screening (HTS) hazard data. These novel modeling methods include reverse methods to infer ...

  4. Spacecraft and Navy Materials Flammability: Review of Some Concepts and Test Methods

    NASA Technical Reports Server (NTRS)

    Hirsch, David

    2004-01-01

    The agenda covered by this viewgraph presentation includes: 1) Concepts of Spacecraft Fire Safety; 2) Spacecraft materials flammability test methods; 3) Evaluation of flight hardware flammability; 4) Review of flammability data in conditions of interest to the Navy; 5) Overview of some flammability test methods recommended for the Navy.

  5. Very Large Scale Optimization

    NASA Technical Reports Server (NTRS)

    Vanderplaats, Garrett; Townsend, James C. (Technical Monitor)

    2002-01-01

    The purpose of this research under the NASA Small Business Innovative Research program was to develop algorithms and associated software to solve very large nonlinear, constrained optimization tasks. Key issues included efficiency, reliability, memory, and gradient calculation requirements. This report describes the general optimization problem, ten candidate methods, and detailed evaluations of four candidates. The algorithm chosen for final development is a modern recreation of a 1960s external penalty function method that uses very limited computer memory and computational time. Although of lower efficiency, the new method can solve problems orders of magnitude larger than current methods. The resulting BIGDOT software has been demonstrated on problems with 50,000 variables and about 50,000 active constraints. For unconstrained optimization, it has solved a problem in excess of 135,000 variables. The method includes a technique for solving discrete variable problems that finds a "good" design, although a theoretical optimum cannot be guaranteed. It is very scalable in that the number of function and gradient evaluations does not change significantly with increased problem size. Test cases are provided to demonstrate the efficiency and reliability of the methods and software.

  6. Beef quality labels: A combination of sensory acceptance test, stated willingness to pay, and choice-based conjoint analysis.

    PubMed

    Meyerding, Stephan G H; Gentz, Maria; Altmann, Brianne; Meier-Dinkel, Lisa

    2018-08-01

    Consumer perspectives of beef quality are complex, leading to a market that is increasingly differentiating. Thus, ongoing monitoring and assessment of changes in consumer perspectives is essential to identify changing market conditions. Often only credence and search characteristics are evaluated in consumer studies; therefore the object of the present study is to examine consumer preferences and perceptions towards beef steaks, also including experience characteristics, using a mixed methods approach. For this reason, 55 consumers participated in an experiment in Germany, including a sensory acceptance test, stated willingness to pay, and choice-based conjoint analysis (CBCA). Different quality characteristics were included, but a focus on the quality labels of 'dry aged beef', 'Block House beef', and 'Angus beef' was predominant throughout the experiment with the results showing that quality labels significantly increased overall liking as well as the stated willingness to pay. Quality labels were also the one of the most important characteristics in the conjoint analysis, after origin and price. The results of all applied methods are comparable for the characteristic quality label. The combination of sensory acceptance test and CBCA were additionally able to evaluate all three kinds of beef quality characteristics, which could not be evaluated together only using a single method. This suggests that a mixture of methods should be used to gain better knowledge on the true behavior of beef consumers. Experience and credence characteristics, including beef quality labels, present opportunities for future research as well as the potential for determining product and market differentiation. Copyright © 2018 Elsevier Ltd. All rights reserved.

  7. 120: THE CLINICAL EFFECTIVENESS AND COST-EFFECTIVENESS OF FRACTIONAL CO2 LASER IN ACNE SCARS AND SKIN REJUVENATION: A SYSTEMATIC REVIEW AND ECONOMIC EVALUATION

    PubMed Central

    Yaaghoobian, Barmak; Sadeghi-Ghyassi, Fatemeh; Hajebrahimi, Sakineh

    2017-01-01

    Background and aims Skin rejuvenation is one of high demand cosmetic interventions in Iran. Fractional CO2 Laser is a high power ablative laser which has variety of utilization in medicine including treatment of acne scars and rejuvenation. The aim of this study was to evaluate the safety, efficacy, and cost-effectiveness of Fractional CO2 Laser in comparison with other methods of rejuvenation and acne scar treatment. Methods A systematic database search including Medline (via OVID and PubMed), EMBASE, CINHAL, Cochrane Library, CRD, SCOPUS and Web of Science conducted. After screening search results, selected publications appraised by CASP and Cochrane Collaboration's tool for assessing risk of bias and eligible studies included in the systematic review. In economic evaluation, all costs and benefits analyzed from Iran ministry of health's perspective. Results From 2667 publications, two randomized control trials were eligible and included in the study. The affectivity and complications of Fractional CO2 laser were comparable with Er: YAG but Fractional CO2 laser was 14.7% (P=0.01) more effective than Q-Switched ND: YAG laser. Cost affectivity of this method was the same as other alternative lasers. Conclusions Fractional CO2 laser is an effective and safe method for curing several kinds of skin. Never the less there was not sufficient evidence to support its advantage. This device has equal or lower price in comparison to competent technologies except for the non- fractional ablative Co2 laser that has the same or lower price and comparable effects.

  8. How to use bibliometric methods in evaluation of scientific research? An example from Finnish schizophrenia research.

    PubMed

    Koskinen, Johanna; Isohanni, Matti; Paajala, Henna; Jääskeläinen, Erika; Nieminen, Pentti; Koponen, Hannu; Tienari, Pekka; Miettunen, Jouko

    2008-01-01

    We present bibliometric methods that can be utilized in evaluation processes of scientific work. In this paper, we present some practical clues using Finnish schizophrenia research as an example and comparing the research output of different institutions. Bibliometric data and indicators including publication counts, impact factors and received citations were used as tools for evaluating research performance in Finnish schizophrenia research. The articles and citations were searched from the Web of Science database. We used schizophrenia as a keyword and defined address Finland, and limited years to 1996-2005. When we analysed Finnish schizophrenia research, altogether 265 articles met our criteria. There were differences in impact factors and received citations between institutions. The number of annually published Finnish schizophrenia articles has tripled since the mid-1990s. International co-operation was common (43%). Bibliometric methods revealed differences between institutions, indicating that the methods can be applied in research evaluation. The coverage of databases as well as the precision of their search engines can be seen as limitations. Bibliometric methods offer a practical and impartial way to estimate publication profiles of researchers and research groups. According to our experience, these methods can be used as an evaluation instrument in research together with other methods, such as expert opinions and panels.

  9. Best methods for evaluating educational impact: a comparison of the efficacy of commonly used measures of library instruction

    PubMed Central

    Schilling, Katherine; Applegate, Rachel

    2012-01-01

    Objectives and Background: Libraries are increasingly called upon to demonstrate student learning outcomes and the tangible benefits of library educational programs. This study reviewed and compared the efficacy of traditionally used measures for assessing library instruction, examining the benefits and drawbacks of assessment measures and exploring the extent to which knowledge, attitudes, and behaviors actually paralleled demonstrated skill levels. Methods: An overview of recent literature on the evaluation of information literacy education addressed these questions: (1) What evaluation measures are commonly used for evaluating library instruction? (2) What are the pros and cons of popular evaluation measures? (3) What are the relationships between measures of skills versus measures of attitudes and behavior? Research outcomes were used to identify relationships between measures of attitudes, behaviors, and skills, which are typically gathered via attitudinal surveys, written skills tests, or graded exercises. Results and Conclusions: Results provide useful information about the efficacy of instructional evaluation methods, including showing significant disparities between attitudes, skills, and information usage behaviors. This information can be used by librarians to implement the most appropriate evaluation methods for measuring important variables that accurately demonstrate students' attitudes, behaviors, or skills. PMID:23133325

  10. Using the Method of Water Poverty Index (WPI) to Evaluate the Region Water Security

    NASA Astrophysics Data System (ADS)

    Fu, Q.; Kachanoski, G.

    2008-12-01

    Water security is a widely concerned issue in the world nowadays. A new method, water poverty index (WPI), has been used to evaluate the regional water security. Twelve state farms in Heilongjiang Province, Northeastern China were selected to evaluate water security status based on the data of 2006 by using WPI and mean deviation grading method. The method of WPI includes five key indexes, such as resources(R), access (A), capacity(C), utilization (U) and environment (E). Each key index includes several sub-indexes. According to the results of WPI, the grade of each farm has been calculated by using the method of mean deviation grading. Thus, the radar images can be protracted of each farm. From the radar images, the conclusions can be drawn that the WPI values of Farms 853 and Hongqiling were in very safe status, while that of Farm Raohe was in safe status, those of Farms Youyi, 597, 852, 291 and Jiangchuan were in moderate safe status, that of Farm Beixing was in low safe status and those of Farms Shuangyashan, Shuguang and Baoshan were in unsafe status. The results from this study can provide basic information for decision making on rational use of water resources and regulations for regional water safety guarantee system.

  11. An Integrated Method for Airfoil Optimization

    NASA Astrophysics Data System (ADS)

    Okrent, Joshua B.

    Design exploration and optimization is a large part of the initial engineering and design process. To evaluate the aerodynamic performance of a design, viscous Navier-Stokes solvers can be used. However this method can prove to be overwhelmingly time consuming when performing an initial design sweep. Therefore, another evaluation method is needed to provide accurate results at a faster pace. To accomplish this goal, a coupled viscous-inviscid method is used. This thesis proposes an integrated method for analyzing, evaluating, and optimizing an airfoil using a coupled viscous-inviscid solver along with a genetic algorithm to find the optimal candidate. The method proposed is different from prior optimization efforts in that it greatly broadens the design space, while allowing the optimization to search for the best candidate that will meet multiple objectives over a characteristic mission profile rather than over a single condition and single optimization parameter. The increased design space is due to the use of multiple parametric airfoil families, namely the NACA 4 series, CST family, and the PARSEC family. Almost all possible airfoil shapes can be created with these three families allowing for all possible configurations to be included. This inclusion of multiple airfoil families addresses a possible criticism of prior optimization attempts since by only focusing on one airfoil family, they were inherently limiting the number of possible airfoil configurations. By using multiple parametric airfoils, it can be assumed that all reasonable airfoil configurations are included in the analysis and optimization and that a global and not local maximum is found. Additionally, the method used is amenable to customization to suit any specific needs as well as including the effects of other physical phenomena or design criteria and/or constraints. This thesis found that an airfoil configuration that met multiple objectives could be found for a given set of nominal operational conditions from a broad design space with the use of minimal computational resources on both an absolute and relative scale to traditional analysis techniques. Aerodynamicists, program managers, aircraft configuration specialist, and anyone else in charge of aircraft configuration, design studies, and program level decisions might find the evaluation and optimization method proposed of interest.

  12. Feasibility of dietary assessment methods, other tools and procedures for a pan-European food consumption survey among infants, toddlers and children.

    PubMed

    Ocké, Marga; Brants, Henny; Dofkova, Marcela; Freisling, Heinz; van Rossum, Caroline; Ruprich, Jiri; Slimani, Nadia; Temme, Elisabeth; Trolle, Ellen; Vandevijvere, Stefanie; Huybrechts, Inge; de Boer, Evelien

    2015-08-01

    To test the feasibility of tools and procedures for a pan-European food consumption survey among children 0-10 years and to recommend one of two tested dietary assessment methods. Two pilot studies including 378 children were conducted in Belgium and the Czech Republic in the Pilot studies for Assessment of Nutrient intake and food Consumption among Kids in Europe. One protocol included a 3-day food diary which was checked with a parent, and data were entered afterwards using EPIC-Soft. The alternative protocol consisted of two non-consecutive 1-day food diaries followed by EPIC-Soft completion interviews. Both protocols included general and food propensity questionnaires and anthropometric measurements. The protocols were compared using evaluation questionnaires among the participating parents and study personnel. The parents found the questionnaires and instructions for filling in the food diaries understandable. Food description and food quantification was evaluated as problematic by 29 and 15% of the participants for the 3-day diaries versus 15 and 12% for the 1-day diaries. The protocol with 1-day food diaries was evaluated as less burdensome by the parents and logistically more challenging by the interviewers. Both dietary assessment methods with related tools and administration protocols were evaluated as feasible. The administration protocol with two 1-day food diaries with completion interviews offers more advantages for the future pan-European survey in children 0-10 years. The positive evaluation of feasibility of tools and materials is an important step towards harmonised food consumption data at European level among the younger age groups.

  13. A Natural Language Processing System That Links Medical Terms in Electronic Health Record Notes to Lay Definitions: System Development Using Physician Reviews

    PubMed Central

    Druhl, Emily; Polepalli Ramesh, Balaji; Houston, Thomas K; Brandt, Cynthia A; Zulman, Donna M; Vimalananda, Varsha G; Malkani, Samir; Yu, Hong

    2018-01-01

    Background Many health care systems now allow patients to access their electronic health record (EHR) notes online through patient portals. Medical jargon in EHR notes can confuse patients, which may interfere with potential benefits of patient access to EHR notes. Objective The aim of this study was to develop and evaluate the usability and content quality of NoteAid, a Web-based natural language processing system that links medical terms in EHR notes to lay definitions, that is, definitions easily understood by lay people. Methods NoteAid incorporates two core components: CoDeMed, a lexical resource of lay definitions for medical terms, and MedLink, a computational unit that links medical terms to lay definitions. We developed innovative computational methods, including an adapted distant supervision algorithm to prioritize medical terms important for EHR comprehension to facilitate the effort of building CoDeMed. Ten physician domain experts evaluated the user interface and content quality of NoteAid. The evaluation protocol included a cognitive walkthrough session and a postsession questionnaire. Physician feedback sessions were audio-recorded. We used standard content analysis methods to analyze qualitative data from these sessions. Results Physician feedback was mixed. Positive feedback on NoteAid included (1) Easy to use, (2) Good visual display, (3) Satisfactory system speed, and (4) Adequate lay definitions. Opportunities for improvement arising from evaluation sessions and feedback included (1) improving the display of definitions for partially matched terms, (2) including more medical terms in CoDeMed, (3) improving the handling of terms whose definitions vary depending on different contexts, and (4) standardizing the scope of definitions for medicines. On the basis of these results, we have improved NoteAid’s user interface and a number of definitions, and added 4502 more definitions in CoDeMed. Conclusions Physician evaluation yielded useful feedback for content validation and refinement of this innovative tool that has the potential to improve patient EHR comprehension and experience using patient portals. Future ongoing work will develop algorithms to handle ambiguous medical terms and test and evaluate NoteAid with patients. PMID:29358159

  14. An evaluation of unsupervised and supervised learning algorithms for clustering landscape types in the United States

    USGS Publications Warehouse

    Wendel, Jochen; Buttenfield, Barbara P.; Stanislawski, Larry V.

    2016-01-01

    Knowledge of landscape type can inform cartographic generalization of hydrographic features, because landscape characteristics provide an important geographic context that affects variation in channel geometry, flow pattern, and network configuration. Landscape types are characterized by expansive spatial gradients, lacking abrupt changes between adjacent classes; and as having a limited number of outliers that might confound classification. The US Geological Survey (USGS) is exploring methods to automate generalization of features in the National Hydrography Data set (NHD), to associate specific sequences of processing operations and parameters with specific landscape characteristics, thus obviating manual selection of a unique processing strategy for every NHD watershed unit. A chronology of methods to delineate physiographic regions for the United States is described, including a recent maximum likelihood classification based on seven input variables. This research compares unsupervised and supervised algorithms applied to these seven input variables, to evaluate and possibly refine the recent classification. Evaluation metrics for unsupervised methods include the Davies–Bouldin index, the Silhouette index, and the Dunn index as well as quantization and topographic error metrics. Cross validation and misclassification rate analysis are used to evaluate supervised classification methods. The paper reports the comparative analysis and its impact on the selection of landscape regions. The compared solutions show problems in areas of high landscape diversity. There is some indication that additional input variables, additional classes, or more sophisticated methods can refine the existing classification.

  15. Assessing Technical Competence in Surgical Trainees: A Systematic Review.

    PubMed

    Szasz, Peter; Louridas, Marisa; Harris, Kenneth A; Aggarwal, Rajesh; Grantcharov, Teodor P

    2015-06-01

    To systematically examine the literature describing the methods by which technical competence is assessed in surgical trainees. The last decade has witnessed an evolution away from time-based surgical education. In response, governing bodies worldwide have implemented competency-based education paradigms. The definition of competence, however, remains elusive, and the impact of these education initiatives in terms of assessment methods remains unclear. A systematic review examining the methods by which technical competence is assessed was conducted by searching MEDLINE, EMBASE, PsychINFO, and the Cochrane database of systematic reviews. Abstracts of retrieved studies were reviewed and those meeting inclusion criteria were selected for full review. Data were retrieved in a systematic manner, the validity and reliability of the assessment methods was evaluated, and quality was assessed using the Grading of Recommendations Assessment, Development and Evaluation classification. Of the 6814 studies identified, 85 studies involving 2369 surgical residents were included in this review. The methods used to assess technical competence were categorized into 5 groups; Likert scales (37), benchmarks (31), binary outcomes (11), novel tools (4), and surrogate outcomes (2). Their validity and reliability were mostly previously established. The overall Grading of Recommendations Assessment, Development and Evaluation for randomized controlled trials was high and low for the observational studies. The definition of technical competence continues to be debated within the medical literature. The methods used to evaluate technical competence predominantly include instruments that were originally created to assess technical skill. Very few studies identify standard setting approaches that differentiate competent versus noncompetent performers; subsequently, this has been identified as an area with great research potential.

  16. Double row equivalent for rotator cuff repair: A biomechanical analysis of a new technique.

    PubMed

    Robinson, Sean; Krigbaum, Henry; Kramer, Jon; Purviance, Connor; Parrish, Robin; Donahue, Joseph

    2018-06-01

    There are numerous configurations of double row fixation for rotator cuff tears however, there remains to be a consensus on the best method. In this study, we evaluated three different double-row configurations, including a new method. Our primary question is whether the new anchor and technique compares in biomechanical strength to standard double row techniques. Eighteen prepared fresh frozen bovine infraspinatus tendons were randomized to one of three groups including the New Double Row Equivalent, Arthrex Speedbridge and a transosseous equivalent using standard Stabilynx anchors. Biomechanical testing was performed on humeri sawbones and ultimate load, strain, yield strength, contact area, contact pressure, and a survival plots were evaluated. The new double row equivalent method demonstrated increased survival as well as ultimate strength at 415N compared to the remainder testing groups as well as equivalent contact area and pressure to standard double row techniques. This new anchor system and technique demonstrated higher survival rates and loads to failure than standard double row techniques. This data provides us with a new method of rotator cuff fixation which should be further evaluated in the clinical setting. Basic science biomechanical study.

  17. Comparison through a LCA evaluation analysis of food waste disposal options from the perspective of global warming and resource recovery.

    PubMed

    Kim, Mi-Hyung; Kim, Jung-Wk

    2010-09-01

    This study evaluated feed manufacturing including dry feeding and wet feeding, composting, and landfilling for food waste disposal options from the perspective of global warming and resource recovery. The method of the expanded system boundaries was employed in order to compare different by-products. The whole stages of disposal involved in the systems such as separate discharge, collection, transportation, treatment, and final disposal, were included in the system boundary and evaluated. The Global Warming Potential generated from 1tonne of food wastes for each disposal system was analyzed by the life cycle assessment method. The results showed that 200kg of CO(2)-eq could be produced from dry feeding process, 61kg of CO(2)-eq from wet feeding process, 123kg of CO(2)-eq from composting process, and 1010kg of CO(2)-eq from landfilling. Feed manufacturing and composting, the common treatment methods currently employed, have been known to be environment friendlier than other methods. However, this study shows that they can negatively affect the environment if their by-products are not appropriately utilized as intended. Copyright 2010 Elsevier B.V. All rights reserved.

  18. An Evaluation of Feature Learning Methods for High Resolution Image Classification

    NASA Astrophysics Data System (ADS)

    Tokarczyk, P.; Montoya, J.; Schindler, K.

    2012-07-01

    Automatic image classification is one of the fundamental problems of remote sensing research. The classification problem is even more challenging in high-resolution images of urban areas, where the objects are small and heterogeneous. Two questions arise, namely which features to extract from the raw sensor data to capture the local radiometry and image structure at each pixel or segment, and which classification method to apply to the feature vectors. While classifiers are nowadays well understood, selecting the right features remains a largely empirical process. Here we concentrate on the features. Several methods are evaluated which allow one to learn suitable features from unlabelled image data by analysing the image statistics. In a comparative study, we evaluate unsupervised feature learning with different linear and non-linear learning methods, including principal component analysis (PCA) and deep belief networks (DBN). We also compare these automatically learned features with popular choices of ad-hoc features including raw intensity values, standard combinations like the NDVI, a few PCA channels, and texture filters. The comparison is done in a unified framework using the same images, the target classes, reference data and a Random Forest classifier.

  19. Why is Coal Ash of Concern and How to Assess Potential Impacts?

    EPA Science Inventory

    EPA's new test methods - the leaching environmental assessment framework (LEAF) are discussed including how they have been used to evaluate fly ash and scrubber residues. Work to evaluate high-volume encapsulated use of fly ash in cementitious material is also described.

  20. Can Value Added Add Value to Teacher Evaluation?

    ERIC Educational Resources Information Center

    Darling-Hammond, Linda

    2015-01-01

    The five thoughtful papers included in this issue of "Educational Researcher" ("ER") raise new questions about the use of value-added methods (VAMs) to estimate teachers' contributions to students' learning as part of personnel evaluation. The papers address both technical and implementation concerns, considering potential…

  1. EVALUATION OF SEVERAL ASSESSMENT METHODS AS INDICATORS OF ESTUARINE ENVIRONMENTAL CONDITIONS

    EPA Science Inventory

    Researchers from U.S. EPA's Gulf Ecology Division have conducted a multi-year evaluation of the environmental condition of near-coastal areas affected by different types of stressors. Areas of study have included coastal rivers, transportation canals, residential canals and estua...

  2. Process Use as a Usefulism

    ERIC Educational Resources Information Center

    Patton, Michael Quinn

    2007-01-01

    Process use refers to changes in attitude, thinking, and behavior that result from participating in an evaluation. Process use includes individual learnings from evaluation involvement as well as effects on program functioning and organizational culture. The "Encyclopedia of Social Science Research Methods," in an entry on operationalization,…

  3. Bruising and Hemophilia: Accident or Child Abuse?

    ERIC Educational Resources Information Center

    Johnson, Charles F.; Coury, Daniel L.

    1988-01-01

    Two case histories illustrate the difficulty in evaluating abuse/neglect in children with bleeding problems such as hemophilia. Discussed are guidelines for diagnosis and prevention of abuse, including: screening techniques, the need for protection from environmental trauma, parental stress, evaluation of parents' disciplinary methods, and the…

  4. Methodological challenges in evaluating the effectiveness of women's crisis houses compared with psychiatric wards: findings from a pilot patient preference RCT.

    PubMed

    Howard, Louise M; Leese, Morven; Byford, Sarah; Killaspy, Helen; Cole, Laura; Lawlor, Caroline; Johnson, Sonia

    2009-10-01

    There are several methodological difficulties to address when evaluating acute psychiatric services. This study explored potential methods in evaluating the effectiveness of women's crisis houses compared with psychiatric wards in a pilot patient preference randomized controlled trial. Women requiring voluntary admission to a psychiatric hospital or women's crisis house were asked to enter this pilot and different options for recruitment were explored, including different recruitment sites in the pathway to admission and methods for including women without capacity. Forty-one percent (n = 42) of women entering the study agreed to be randomized and 59% (n = 61) entered patient preference arms. Only 7% of women were recruited before admission and 1 woman without capacity entered the study, despite procedures to facilitate this. Recruitment of patients with acute psychiatric crises is therefore challenging; researchers evaluating acute services should establish a consensus on how ethically and practically to recruit patients in this setting.

  5. MATRIS Indexing and Retrieval Thesaurus (MIRT): Definitions of Indexing Terms

    DTIC Science & Technology

    1994-08-01

    use strategies ; may include simple manual systems for personnel management. • Bgc Marginal manpower utilization The utilization of various types of...resources. Bgg Manpower management evaluation Evaluation process including manpower plans, strategies , methods of execution, and decision making with...specialties. I I I I I I I I I U I I I I 6 MANPOWER I I I RECRUITMENT I C RECRUITMENT Process involving developing requirements and strategies for

  6. Scheduled Peripheral Component Interconnect Arbiter

    NASA Technical Reports Server (NTRS)

    Nixon, Scott Alan (Inventor)

    2015-01-01

    Systems and methods are described for arbitrating access of a communication bus. In one embodiment, a method includes performing steps on one or more processors. The steps include: receiving an access request from a device of the communication bus; evaluating a bus schedule to determine an importance of the device based on the access request; and selectively granting access of the communication bus to the device based on the importance of the device.

  7. CFD code evaluation for internal flow modeling

    NASA Technical Reports Server (NTRS)

    Chung, T. J.

    1990-01-01

    Research on the computational fluid dynamics (CFD) code evaluation with emphasis on supercomputing in reacting flows is discussed. Advantages of unstructured grids, multigrids, adaptive methods, improved flow solvers, vector processing, parallel processing, and reduction of memory requirements are discussed. As examples, researchers include applications of supercomputing to reacting flow Navier-Stokes equations including shock waves and turbulence and combustion instability problems associated with solid and liquid propellants. Evaluation of codes developed by other organizations are not included. Instead, the basic criteria for accuracy and efficiency have been established, and some applications on rocket combustion have been made. Research toward an ultimate goal, the most accurate and efficient CFD code, is in progress and will continue for years to come.

  8. Evaluation of DFT methods for computing the interaction energies of homomolecular and heteromolecular dimers of monosubstituted benzene

    NASA Astrophysics Data System (ADS)

    Godfrey-Kittle, Andrew; Cafiero, Mauricio

    We present density functional theory (DFT) interaction energies for the sandwich and T-shaped conformers of substituted benzene dimers. The DFT functionals studied include TPSS, HCTH407, B3LYP, and X3LYP. We also include Hartree-Fock (HF) and second-order Møller-Plesset perturbation theory calculations (MP2), as well as calculations using a new functional, P3LYP, which includes PBE and HF exchange and LYP correlation. Although DFT methods do not explicitly account for the dispersion interactions important in the benzene-dimer interactions, we find that our new method, P3LYP, as well as HCTH407 and TPSS, match MP2 and CCSD(T) calculations much better than the hybrid methods B3LYP and X3LYP methods do.

  9. Evaluation and integration of existing methods for computational prediction of allergens

    PubMed Central

    2013-01-01

    Background Allergy involves a series of complex reactions and factors that contribute to the development of the disease and triggering of the symptoms, including rhinitis, asthma, atopic eczema, skin sensitivity, even acute and fatal anaphylactic shock. Prediction and evaluation of the potential allergenicity is of importance for safety evaluation of foods and other environment factors. Although several computational approaches for assessing the potential allergenicity of proteins have been developed, their performance and relative merits and shortcomings have not been compared systematically. Results To evaluate and improve the existing methods for allergen prediction, we collected an up-to-date definitive dataset consisting of 989 known allergens and massive putative non-allergens. The three most widely used allergen computational prediction approaches including sequence-, motif- and SVM-based (Support Vector Machine) methods were systematically compared using the defined parameters and we found that SVM-based method outperformed the other two methods with higher accuracy and specificity. The sequence-based method with the criteria defined by FAO/WHO (FAO: Food and Agriculture Organization of the United Nations; WHO: World Health Organization) has higher sensitivity of over 98%, but having a low specificity. The advantage of motif-based method is the ability to visualize the key motif within the allergen. Notably, the performances of the sequence-based method defined by FAO/WHO and motif eliciting strategy could be improved by the optimization of parameters. To facilitate the allergen prediction, we integrated these three methods in a web-based application proAP, which provides the global search of the known allergens and a powerful tool for allergen predication. Flexible parameter setting and batch prediction were also implemented. The proAP can be accessed at http://gmobl.sjtu.edu.cn/proAP/main.html. Conclusions This study comprehensively evaluated sequence-, motif- and SVM-based computational prediction approaches for allergens and optimized their parameters to obtain better performance. These findings may provide helpful guidance for the researchers in allergen-prediction. Furthermore, we integrated these methods into a web application proAP, greatly facilitating users to do customizable allergen search and prediction. PMID:23514097

  10. Evaluation and integration of existing methods for computational prediction of allergens.

    PubMed

    Wang, Jing; Yu, Yabin; Zhao, Yunan; Zhang, Dabing; Li, Jing

    2013-01-01

    Allergy involves a series of complex reactions and factors that contribute to the development of the disease and triggering of the symptoms, including rhinitis, asthma, atopic eczema, skin sensitivity, even acute and fatal anaphylactic shock. Prediction and evaluation of the potential allergenicity is of importance for safety evaluation of foods and other environment factors. Although several computational approaches for assessing the potential allergenicity of proteins have been developed, their performance and relative merits and shortcomings have not been compared systematically. To evaluate and improve the existing methods for allergen prediction, we collected an up-to-date definitive dataset consisting of 989 known allergens and massive putative non-allergens. The three most widely used allergen computational prediction approaches including sequence-, motif- and SVM-based (Support Vector Machine) methods were systematically compared using the defined parameters and we found that SVM-based method outperformed the other two methods with higher accuracy and specificity. The sequence-based method with the criteria defined by FAO/WHO (FAO: Food and Agriculture Organization of the United Nations; WHO: World Health Organization) has higher sensitivity of over 98%, but having a low specificity. The advantage of motif-based method is the ability to visualize the key motif within the allergen. Notably, the performances of the sequence-based method defined by FAO/WHO and motif eliciting strategy could be improved by the optimization of parameters. To facilitate the allergen prediction, we integrated these three methods in a web-based application proAP, which provides the global search of the known allergens and a powerful tool for allergen predication. Flexible parameter setting and batch prediction were also implemented. The proAP can be accessed at http://gmobl.sjtu.edu.cn/proAP/main.html. This study comprehensively evaluated sequence-, motif- and SVM-based computational prediction approaches for allergens and optimized their parameters to obtain better performance. These findings may provide helpful guidance for the researchers in allergen-prediction. Furthermore, we integrated these methods into a web application proAP, greatly facilitating users to do customizable allergen search and prediction.

  11. 7 CFR 1944.683 - Reporting requirements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Agriculture Regulations of the Department of Agriculture (Continued) RURAL HOUSING SERVICE, RURAL BUSINESS... analyze the effectiveness of the program. As part of the grantee's preapplication submission, as required..., including its method of evaluation to determine its effectiveness. Accordingly, the report must include, but...

  12. Early Temporal Effects of Three Thyroid Hormone Synthesis Inhibitors in Xenopus laevis

    EPA Science Inventory

    Thyroid axis disruption is an important consideration when evaluating the risks associated with chemicals. Bioassay methods that include thyroid-related endpoints have been developed in a variety of species, including amphibians, whose metamorphic development is thyroid hormone ...

  13. Is Self-Paced Instruction Really Worth It?

    ERIC Educational Resources Information Center

    Roberson, J. A.; Crowe, C. T.

    1975-01-01

    Describes a self-paced, learning-for-mastery course in undergraduate fluid mechanics. Includes the method of course assessment, method of student evaluation, and a description of the instructor's role and work load. Summarizes aspects of self-paced instruction considered favorable and unfavorable. (GS)

  14. Administrative Decision Making and Quasi Decision Making: An Empirical Study Using the Protocol Method.

    ERIC Educational Resources Information Center

    Fraser, Hugh W.; Anderson, Mary E.

    1982-01-01

    This exploratory study attempted to identify variables in need of further investigation. Those to emerge included heuristics or rules of thumb used by administrators in decision making, personality variables, and methods for evaluating alternatives. (Author/JM)

  15. HVAC SYSTEMS AS EMISSION SOURCES AFFECTING INDOOR AIR QUALITY: A CRITICAL REVIEW

    EPA Science Inventory

    The study evaluates heating, ventilating, and air-conditioning (HVAC) systems as contaminant emission sources that affect indoor air quality (IAQ). Various literature sources and methods for characterizing HVAC emission sources are reviewed. Available methods include in situ test...

  16. NERL MICROBIAL PROGRAM WITH EMPHASIS ON PROTOZOAN METHODS

    EPA Science Inventory

    The National Exposure Research Laboratory's facility in Cincinnati is engated in a variety of microbiological research projects that include studies on bacteria, viruses, fungi and protozoa. One of these was a protzoology project to determine the best way to evaluate methods rep...

  17. Evaluation of organic carbon analyzers for space application. [for water reclamation

    NASA Technical Reports Server (NTRS)

    1984-01-01

    The state-of-the-art technology for organic carbon analysis in space applications is evaluated. An investigation into total organic carbon (TOC) analysis has identified a variety of schemes which include different methods for: (1) separation of inorganic carbon from organic carbon and/or differentiation of inorganic carbon from organic carbon; (2) reaction of organic carbon to form a quantifiable species; and (3) detection and measurement of that species. Each method option is discussed.

  18. Power-law behaviour evaluation from foreign exchange market data using a wavelet transform method

    NASA Astrophysics Data System (ADS)

    Wei, H. L.; Billings, S. A.

    2009-09-01

    Numerous studies in the literature have shown that the dynamics of many time series including observations in foreign exchange markets exhibit scaling behaviours. A simple new statistical approach, derived from the concept of the continuous wavelet transform correlation function (WTCF), is proposed for the evaluation of power-law properties from observed data. The new method reveals that foreign exchange rates obey power-laws and thus belong to the class of self-similarity processes.

  19. [The study of establishment of the " Chinese provincial Blindness prevention technical guidance group performance evaluation system"].

    PubMed

    Lu, L N; He, X G; Zhu, J F; Xu, X; Zhang, R; Hu, X; Zou, H D

    2016-11-11

    Objective: To establish an assessment system, including indexes and scoring methods, that can be used for performance evaluation of the provincial blindness prevention technical guidance group properly and effectively . Methods: The indexes and scoring methods were set based on the core content of The " National Plan of Prevention and Treatment of Blindness (2012-2015)" , the specific requirement and target of the World Health Organization (WHO) "For the General Eye Health: Global plan of Action (2014-2019)" , and the current situation of the China's provinces and autonomous regions. These indexes should be of effectiveness, feasibility, comparability, guidance and advancing. Formed by a literature review of candidate indicators, the framework of the system is built by qualitative assessment. With the Delphi method, the system was further revised and improved. Empirical pilot study was then used to prove the feasibility, followed by the final qualitative analysis that establish the " Chinese provincial Blindness prevention technical guidance group performance evaluation system" . Results: Through the literature review and qualitative assessment, a six dimensional system framework was built, including 6 first-level indicators, 16 second-level indicators, and 29 third-level indicators through Delphi method evaluation. With the variation coefficient method, the coeffiences of the first-level index weight were calculated as: Organization and management 0.15, Development and implementation of blindness prevention plans 0.15, Implementation of blindness prevention projects 0.14, Training 0.17, Health education 0.18, and Cooperation and exchanges 0.21. The specific scoring method for this system is confirmed as: data and files check, field interview, and record interview, sampling investigation. Empirical pilot study was conducted in the Jilin, Guizhou and Gansu provinces, and the self-assessment results from local experts were consistent with the scores from the systems. Conclusion: This system established is appropriate at current time, and it can effectively evaluate the performance of the Chinese provincial Blindness prevention technical guidance group. (Chin J Ophthalmol, 2016, 52:814-824) .

  20. [How can the impact of Health Technology Assessment (HTA) in the Austrian healthcare system be assessed? Design of a conceptual framework].

    PubMed

    Schumacher, I; Zechmeister, I

    2012-04-01

    In Austria research in Health Technology Assessment (HTA) has been conducted since the 1990s. Research in HTA aims at supporting an adequate and efficient use of health care resources in order to sustain a publicly financed and solidary health care system. Ultimately, HTA research should result in better health of the population. Research results should provide independent information for decision makers. For legitimizing further research resources and for prioritizing future HTA research and guaranteeing the value of future research, HTA research needs itself to undergo evaluation. Aim of the study is to design a conceptual framework for evaluating the impact of HTA research in Austria on the basis of the existing literature. An already existing review which presents methods and concepts how to evaluate HTA-impact was updated by a systematic research including literature of the years 2004-January 2010. Results were analysed in regard to 4 categories: definition of the term impact, target groups and system levels, operationalisation of indicators and evaluation methods. Overall, 19 publications were included. Referring to the 4 categories, an explanation of impact has to take into account HTAs multidisciplinary setting and needs a context related definition. Target groups, system levels, indicators and methods depend on the impact defined. Studies investigated direct and indirect impact and were focused on different target groups like physicians, nurses and decision makers on the micro-, and meso level, as well as politicians and reimbursement institutions on the macro level. Except for one reference all studies applied already known and mostly qualitative methods for measuring the impact of HTA research. Thus, an appropriate pool of instruments seems to be available. There is a lack of information about validity of applied methods and indicators. By adapting adequate methods and concepts a conceptual framework for the Austrian HTA-Impact evaluation has been designed. The paper presents an overview of existing methods for the evaluation of the HTA research. This has been used to identify useful approaches for measuring the HTA-impact in Austria. By providing a context sensitive framework for impact evaluation in Austria the Austrian HTA-research contributes to the international trend of impact-evaluation. © Georg Thieme Verlag KG Stuttgart · New York.

  1. Evaluation of Low-Tech Indoor Remediation Methods ...

    EPA Pesticide Factsheets

    Report This study identified, collected, evaluated, and summarized available articles, reports, guidance documents, and other pertinent information related to common housekeeping activities within the United States. This resulted in a summary compendium including relevant information about multiple low-tech cleaning methods from the literature search results. Through discussion and prioritization, an EPA project team, made up of several EPA scientists and emergency responders, focused the information into a list of 14 housekeeping activities for decontamination evaluation testing. These types of activities are collectively referred to as “low-tech” remediation methods because of the comparative simple tools, equipment, and operations involved. Similarly, eight common household surfaces were chosen that were contaminated using three different contamination conditions. Thirty-three combinations of methods and surfaces were chosen for testing under the three contamination conditions for a total of 99 tests.

  2. Development of Innovative Nondestructive Evaluation Technologies for the Inspection of Cracking and Corrosion Under Coatings

    NASA Astrophysics Data System (ADS)

    Lipetzky, Kirsten G.; Novack, Michele R.; Perez, Ignacio; Davis, William R.

    2001-11-01

    Three different innovative nondestructive evaluation technologies were developed and evaluated for the ability to detect fatigue cracks and corrosion hidden under painted aluminum panels. The three technologies included real-time ultrasound imaging, thermal imaging, and near-field microwave imaging. With each of these nondestructive inspection methods, subtasks were performed in order to optimize each methodology.

  3. Comments on Professor Bloom's Paper Entitled "Toward a Theory of Testing Which Includes Measurement-Evaluation-Assessment."

    ERIC Educational Resources Information Center

    Glass, Gene V.

    The objective of evaluation in education is distinct from the objectives of measurement and assessment or testing. Accordingly, a synthesis of the three procedures into a single theory is not viable. Evaluation is a method of gathering empirical evidence for decision making by answering questions about the worth of educational materials,…

  4. Computation of Anisotropic Bi-Material Interfacial Fracture Parameters and Delamination Creteria

    NASA Technical Reports Server (NTRS)

    Chow, W-T.; Wang, L.; Atluri, S. N.

    1998-01-01

    This report documents the recent developments in methodologies for the evaluation of the integrity and durability of composite structures, including i) the establishment of a stress-intensity-factor based fracture criterion for bimaterial interfacial cracks in anisotropic materials (see Sec. 2); ii) the development of a virtual crack closure integral method for the evaluation of the mixed-mode stress intensity factors for a bimaterial interfacial crack (see Sec. 3). Analytical and numerical results show that the proposed fracture criterion is a better fracture criterion than the total energy release rate criterion in the characterization of the bimaterial interfacial cracks. The proposed virtual crack closure integral method is an efficient and accurate numerical method for the evaluation of mixed-mode stress intensity factors.

  5. A systematic review on how to conduct evaluations in community-based rehabilitation

    PubMed Central

    Hébert, Michèle; Thibeault, Rachel

    2014-01-01

    Purpose Community-based rehabilitation (CBR) must prove that it is making a significant difference for people with disabilities in low- and middle-income countries. Yet, evaluation is not a common practice and the evidence for its effectiveness is fragmented and largely insufficient. The objective of this article was to review the literature on best practices in program evaluation in CBR in relation to the evaluative process, the frameworks, and the methods of data collection. Method A systematic search was conducted on five rehabilitation databases and the World Health Organization website with keywords associated with CBR and program evaluation. Two independent researchers selected the articles. Results Twenty-two documents were included. The results suggest that (1) the evaluative process needs to be conducted in close collaboration with the local community, including people with disabilities, and to be followed by sharing the findings and taking actions, (2) many frameworks have been proposed to evaluate CBR but no agreement has been reached, and (3) qualitative methodologies have dominated the scene in CBR so far, but their combination with quantitative methods has a lot of potential to better capture the effectiveness of this strategy. Conclusions In order to facilitate and improve evaluations in CBR, there is an urgent need to agree on a common framework, such as the CBR matrix, and to develop best practice guidelines based on the literature available and consensus among a group of experts. These will need to demonstrate a good balance between community development and standards for effective evaluations. Implications for Rehabilitation In the quest for evidence of the effectiveness of community-based rehabilitation (CBR), a shared program evaluation framework would better enable the combination of findings from different studies. The evaluation of CBR programs should always include sharing findings and taking action for the sake of the local community. Although qualitative methodologies have dominated the scene in CBR and remain highly relevant, there is also a call for the inclusion of quantitative indicators in order to capture the progress made by people participating in CBR programs. The production of best practice guidelines for evaluation in CBR could foster accountable and empowering program evaluations that are congruent with the principles at the heart of CBR and the standards for effective evaluations. PMID:23614357

  6. A Roadmap for the Development of Alternative (Non-Animal) Methods for Systemic Toxicity Testing

    EPA Science Inventory

    Systemic toxicity testing forms the cornerstone for the safety evaluation of substances. Pressures to move from traditional animal models to novel technologies arise from various concerns, including: the need to evaluate large numbers of previously untested chemicals and new prod...

  7. 36 CFR 1237.28 - What special concerns apply to digital photographs?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... defects, evaluate the accuracy of finding aids, and verify file header information and file name integrity... sampling methods or more comprehensive verification systems (e.g., checksum programs), to evaluate image.... For permanent or unscheduled images descriptive elements must include: (1) An identification number...

  8. 36 CFR § 1237.28 - What special concerns apply to digital photographs?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... defects, evaluate the accuracy of finding aids, and verify file header information and file name integrity... sampling methods or more comprehensive verification systems (e.g., checksum programs), to evaluate image.... For permanent or unscheduled images descriptive elements must include: (1) An identification number...

  9. 36 CFR 1237.28 - What special concerns apply to digital photographs?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... defects, evaluate the accuracy of finding aids, and verify file header information and file name integrity... sampling methods or more comprehensive verification systems (e.g., checksum programs), to evaluate image.... For permanent or unscheduled images descriptive elements must include: (1) An identification number...

  10. 36 CFR 1237.28 - What special concerns apply to digital photographs?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... defects, evaluate the accuracy of finding aids, and verify file header information and file name integrity... sampling methods or more comprehensive verification systems (e.g., checksum programs), to evaluate image.... For permanent or unscheduled images descriptive elements must include: (1) An identification number...

  11. 36 CFR 1237.28 - What special concerns apply to digital photographs?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... defects, evaluate the accuracy of finding aids, and verify file header information and file name integrity... sampling methods or more comprehensive verification systems (e.g., checksum programs), to evaluate image.... For permanent or unscheduled images descriptive elements must include: (1) An identification number...

  12. Selecting Students at Risk of Academic Difficulties

    ERIC Educational Resources Information Center

    Cummings, Kelli D.; Smolkowski, Keith

    2015-01-01

    This paper aims to translate for practitioners the principles and methods for evaluating screening measures in education, including benchmark goals and cut points, from our technical manuscript "Evaluation of Diagnostic Systems: The Selection of Students at Risk of Academic Difficulties" (this issue). We offer a brief description of…

  13. A Course Model for Teaching Research Evaluation in Colleges of Pharmacy.

    ERIC Educational Resources Information Center

    Draugalis, JoLaine R.; Slack, Marion K.

    1992-01-01

    A University of Arizona undergraduate pharmacy course designed to develop student skills in evaluation of research has five parts: introduction to the scientific method; statistical techniques/data analysis review; research design; fundamentals of clinical studies; and practical applications. Prerequisites include biostatistics and drug…

  14. Introduction to Psychology and Leadership. Typological Analysis of Student Characteristics: Preliminary Report.

    ERIC Educational Resources Information Center

    Bessemer, David W.; Shrage, Jules H.

    Recommendations for an alternative plan, based on typological analysis techniques, for the evaluation of student characteristics related to media, presentation design, and academic performance are presented. Difficulties with present evaluation plans are discussed, and different methods of typological analysis are described. Included are…

  15. 76 FR 12729 - Cambridge Environmental Inc; Transfer of Data

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-08

    ...) and/ or electronic form. Due dates for each data package and/or assessment and/or project shall be...; Transfer of Data AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: This notice... evaluating assessments. This includes evaluating the applicability of the data and methods used in the...

  16. Pharmacoeconomics

    PubMed Central

    Hughes, Dyfrig A

    2012-01-01

    Pharmacoeconomics is an essential component of health technology assessment and the appraisal of medicines for use by UK National Health Service (NHS) patients. As a comparatively young discipline, its methods continue to evolve. Priority research areas for development include methods for synthesizing indirect comparisons when head-to-head trials have not been performed, synthesizing qualitative evidence (for example, stakeholder views), addressing the limitations of the EQ-5D tool for assessing quality of life, including benefits not captured in quality-adjusted life years (QALYs), ways of assessing valuation methods (for determining utility scores), extrapolation of costs and benefits beyond those observed in trials, early estimation of cost-effectiveness (including mechanism-based economic evaluation), methods for incorporating the impact of non-adherence and the role of behavioural economics in influencing patients and prescribers. PMID:22360714

  17. Evaluating color deficiency simulation and daltonization methods through visual search and sample-to-match: SaMSEM and ViSDEM

    NASA Astrophysics Data System (ADS)

    Simon-Liedtke, Joschua T.; Farup, Ivar; Laeng, Bruno

    2015-01-01

    Color deficient people might be confronted with minor difficulties when navigating through daily life, for example when reading websites or media, navigating with maps, retrieving information from public transport schedules and others. Color deficiency simulation and daltonization methods have been proposed to better understand problems of color deficient individuals and to improve color displays for their use. However, it remains unclear whether these color prosthetic" methods really work and how well they improve the performance of color deficient individuals. We introduce here two methods to evaluate color deficiency simulation and daltonization methods based on behavioral experiments that are widely used in the field of psychology. Firstly, we propose a Sample-to-Match Simulation Evaluation Method (SaMSEM); secondly, we propose a Visual Search Daltonization Evaluation Method (ViSDEM). Both methods can be used to validate and allow the generalization of the simulation and daltonization methods related to color deficiency. We showed that both the response times (RT) and the accuracy of SaMSEM can be used as an indicator of the success of color deficiency simulation methods and that performance in the ViSDEM can be used as an indicator for the efficacy of color deficiency daltonization methods. In future work, we will include comparison and analysis of different color deficiency simulation and daltonization methods with the help of SaMSEM and ViSDEM.

  18. Presenting an Evaluation Model for the Cancer Registry Software.

    PubMed

    Moghaddasi, Hamid; Asadi, Farkhondeh; Rabiei, Reza; Rahimi, Farough; Shahbodaghi, Reihaneh

    2017-12-01

    As cancer is increasingly growing, cancer registry is of great importance as the main core of cancer control programs, and many different software has been designed for this purpose. Therefore, establishing a comprehensive evaluation model is essential to evaluate and compare a wide range of such software. In this study, the criteria of the cancer registry software have been determined by studying the documents and two functional software of this field. The evaluation tool was a checklist and in order to validate the model, this checklist was presented to experts in the form of a questionnaire. To analyze the results of validation, an agreed coefficient of %75 was determined in order to apply changes. Finally, when the model was approved, the final version of the evaluation model for the cancer registry software was presented. The evaluation model of this study contains tool and method of evaluation. The evaluation tool is a checklist including the general and specific criteria of the cancer registry software along with their sub-criteria. The evaluation method of this study was chosen as a criteria-based evaluation method based on the findings. The model of this study encompasses various dimensions of cancer registry software and a proper method for evaluating it. The strong point of this evaluation model is the separation between general criteria and the specific ones, while trying to fulfill the comprehensiveness of the criteria. Since this model has been validated, it can be used as a standard to evaluate the cancer registry software.

  19. Renal damages after extracorporeal shock wave lithotripsy evaluated by Gd-DTPA-enhanced dynamic magnetic resonance imaging.

    PubMed

    Umekawa, T; Kohri, K; Yamate, T; Amasaki, N; Ishikawa, Y; Takada, M; Iguchi, M; Kurita, T

    1992-01-01

    Renal damages after extracorporeal shock wave lithotripsy (ESWL) were evaluated by magnetic resonance imaging (MRI) including Gd-DTPA-enhanced dynamic MRI in 37 patients with renal stone by spin echo methods (T1 and T2-weighted scan) and small tip angle gradient echo method (T2-weighted scan). Sixty-eight percent of the patients had changes in the MRI findings after ESWL. The frequently observed findings were perirenal fluid collection (38%), loss of corticomedullary junction (35%), and increased signal intensity of muscle and other adjacent tissue (34%). Preoperative Gd-DTPA-enhanced dynamic MRI showed low intensity band which suggests Gd-DTPA secretion from the glomerulus into the renal tubulus. In all cases the low intensity band became unclear after ESWL because of renal contusion due to ESWL. MRI, including Gd-DTPA-enhanced dynamic MRI, is considered to be a good procedure for evaluation of renal damages due to ESWL.

  20. Health Impact Assessment as a framework for evaluation of local complex projects.

    PubMed

    Heath, Lucy

    2007-07-01

    Health impact assessment (HIA) has been used to predict effects of a local parenting strategy and develop an evaluation framework. Methods used included literature searches, inequalities profiling, interviews with key informants and a review of available cost data. Four priority areas, where parenting can potentially impact, were identified: education, antisocial behaviour, lifestyle choices and mental health. The results concerning mental health are presented here. Improving the quality of parenting can impact on a child's mental health. The costs relating to the mental health outcomes are high and parenting is a cost-effective method to address the family dynamics that impact on this. Intermediary indicators, including clear boundaries, time spent as a family and parental involvement can be used to evaluate the intervention in the short-term, although there are difficulties in their measurement. The HIA process can improve cross-sectorial working, increased community participation and keep inequalities on the agenda.

  1. Enhancing predictive accuracy and reproducibility in clinical evaluation research: Commentary on the special section of the Journal of Evaluation in Clinical Practice.

    PubMed

    Bryant, Fred B

    2016-12-01

    This paper introduces a special section of the current issue of the Journal of Evaluation in Clinical Practice that includes a set of 6 empirical articles showcasing a versatile, new machine-learning statistical method, known as optimal data (or discriminant) analysis (ODA), specifically designed to produce statistical models that maximize predictive accuracy. As this set of papers clearly illustrates, ODA offers numerous important advantages over traditional statistical methods-advantages that enhance the validity and reproducibility of statistical conclusions in empirical research. This issue of the journal also includes a review of a recently published book that provides a comprehensive introduction to the logic, theory, and application of ODA in empirical research. It is argued that researchers have much to gain by using ODA to analyze their data. © 2016 John Wiley & Sons, Ltd.

  2. Sensitivity and comparison evaluation of Saturn 5 liquid penetrants

    NASA Technical Reports Server (NTRS)

    Jones, G. H.

    1973-01-01

    Results of a sensitivity and comparison evaluation performed on six liquid penetrants that were used on the Saturn 5 vehicle and other space hardware to detect surface discontinuities are described. The relationship between penetrant materials and crack definition capabilities, the optimum penetrant materials evaluation method, and the optimum measurement methods for crack dimensions were investigated. A unique method of precise developer thickness control was envolved, utilizing clear radiographic film and a densitometer. The method of evaluation included five aluminum alloy, 2219-T87, specimens that were heated and then quenched in cold water to produce cracks. The six penetrants were then applied, one at a time, and the crack indications were counted and recorded for each penetrant for comparison purposes. Measurements were made by determining the visual crack indications per linear inch and then sectioning the specimens for a metallographic count of the cracks present. This method provided a numerical approach for assigning a sensitivity index number to the penetrants. Of the six penetrants evaluated, two were not satisfactory (one was not sufficiently sensitive and the other was to sensitive, giving false indications). The other four were satisfactory with approximately the same sensitivity in the range of 78 to 80.5 percent of total cracks detected.

  3. Evaluation of Piloted Inputs for Onboard Frequency Response Estimation

    NASA Technical Reports Server (NTRS)

    Grauer, Jared A.; Martos, Borja

    2013-01-01

    Frequency response estimation results are presented using piloted inputs and a real-time estimation method recently developed for multisine inputs. A nonlinear simulation of the F-16 and a Piper Saratoga research aircraft were subjected to different piloted test inputs while the short period stabilator/elevator to pitch rate frequency response was estimated. Results show that the method can produce accurate results using wide-band piloted inputs instead of multisines. A new metric is introduced for evaluating which data points to include in the analysis and recommendations are provided for applying this method with piloted inputs.

  4. Effective Practices for Evaluating Education and Public Outreach Programs

    NASA Astrophysics Data System (ADS)

    Wilkerson, S.

    2013-12-01

    Stephanie Baird Wilkerson, PhD Carol Haden EdD Magnolia Consulting,LLC Education and public outreach (EPO) program developers and providers seeking insights regarding effective practices for evaluating EPO activities programs benefit from understanding why evaluation is critical to the success of EPO activities and programs, what data collection methods are appropriate, and how to effectively communicate and report findings. Based on our extensive experience evaluating EPO programs, we will share lessons learned and examples of how these practices play out in actual evaluation studies. EPO program developers, providers, and evaluators must consider several factors that influence which evaluation designs and data collection methods will be most appropriate, given the nature of EPO programs. Effective evaluation practices of EPO programs take into account a program's phase of development, duration, and budget as well as a program's intended outcomes. EPO programs that are just beginning development will have different evaluation needs and priorities than will well-established programs. Effective evaluation practices consider the 'life' of a program with an evaluation design that supports a program's growth through various phases including development, revision and refinement, and completion. It would be premature and inappropriate to expect the attainment of longer-term outcomes of activities during program development phases or early stages of implementation. During program development, EPO providers should clearly define program outcomes that are feasible and appropriate given a program's scope and expected reach. In many respects, this directly relates to the amount of time, or duration, intended audiences participate in EPO programs. As program duration increases so does the likelihood that the program can achieve longer-term outcomes. When choosing which outcomes are reasonable to impact and measure, program duration should be considered. Effective evaluation practices include selecting appropriate data collection methods given a program's duration and corresponding intended outcomes. Data collection methods for programs of short duration might involve simple evaluation activities, whereas programs of longer duration might involve ongoing data collection measures including longitudinal student surveys, implementation logs, student journals, and student achievement measures. During our presentation, we will share examples from our own experience to illustrate how effective evaluation practices can be applied to various EPO programs based on program duration. Irrespective of duration, we find that EPO program developers and providers want both formative feedback to guide improvements and summative feedback on outcomes. More often than not, evaluation budgets for EPO programs are meager at best, yet come with the same information needs and priorities as programs with larger evaluation budgets. So how do program providers get the information they need given their limited funds for evaluation? We will offer several recommendations for helping EPO program providers work with evaluators to become better-informed consumers of evaluation by maximizing evaluation offerings and minimizing costs. During our presentation we also will share examples of communicating and reporting results for EPO program developers, EPO facilitators and practitioners, and funders.

  5. DOE Office of Scientific and Technical Information (OSTI.GOV)

    Rowe, M.D.; Pierce, B.L.

    This report presents results of tests of different final site selection methods used for siting large-scale facilities such as nuclear power plants. Test data are adapted from a nuclear power plant siting study conducted on Long Island, New York. The purpose of the tests is to determine whether or not different final site selection methods produce different results, and to obtain some understanding of the nature of any differences found. Decision rules and weighting methods are included. Decision rules tested are Weighting Summation, Power Law, Decision Analysis, Goal Programming, and Goal Attainment; weighting methods tested are Categorization, Ranking, Rating Ratiomore » Estimation, Metfessel Allocation, Indifferent Tradeoff, Decision Analysis lottery, and Global Evaluation. Results show that different methods can, indeed, produce different results, but that the probability that they will do so is controlled by the structure of differences among the sites being evaluated. Differences in weights and suitability scores attributable to methods have reduced significance if the alternatives include one or two sites that are superior to all others in many attributes. The more tradeoffs there are among good and bad levels of different attributes at different sites, the more important are the specifics of methods to the final decision. 5 refs., 14 figs., 19 tabs.« less

  6. Rotor Wake Vortex Definition: Initial Evaluation of 3-C PIV Results of the Hart-II Study

    NASA Technical Reports Server (NTRS)

    Burley, Casey L.; Brooks, Thomas F.; vanderWall, Berend; Richard, Hughes; Raffel, Markus; Beaumier, Philippe; Delrieux, Yves; Lim, Joon W.; Yu, Yung H.; Tung, Chee

    2002-01-01

    An initial evaluation is made of extensive three-component (3C) particle image velocimetry (PIV) measurements within the wake across a rotor disk plane. The model is a 40 percent scale BO-105 helicopter main rotor in forward flight simulation. This study is part of the HART II test program conducted in the German-Dutch Wind Tunnel (DNW). Included are wake vortex field measurements over the advancing and retreating sides of the rotor operating at a typical descent landing condition important for impulsive blade-vortex interaction (BVI) noise. Also included are advancing side results for rotor angle variations from climb to steep descent. Using detailed PIV vector maps of the vortex fields, methods of extracting key vortex parameters are examined and a new method was developed and evaluated. An objective processing method, involving a center-of-vorticity criterion and a vorticity 'disk' integration, was used to determine vortex core size, strength, core velocity distribution characteristics, and unsteadiness. These parameters are mapped over the rotor disk and offer unique physical insight for these parameters of importance for rotor noise and vibration prediction.

  7. Onboard Nonlinear Engine Sensor and Component Fault Diagnosis and Isolation Scheme

    NASA Technical Reports Server (NTRS)

    Tang, Liang; DeCastro, Jonathan A.; Zhang, Xiaodong

    2011-01-01

    A method detects and isolates in-flight sensor, actuator, and component faults for advanced propulsion systems. In sharp contrast to many conventional methods, which deal with either sensor fault or component fault, but not both, this method considers sensor fault, actuator fault, and component fault under one systemic and unified framework. The proposed solution consists of two main components: a bank of real-time, nonlinear adaptive fault diagnostic estimators for residual generation, and a residual evaluation module that includes adaptive thresholds and a Transferable Belief Model (TBM)-based residual evaluation scheme. By employing a nonlinear adaptive learning architecture, the developed approach is capable of directly dealing with nonlinear engine models and nonlinear faults without the need of linearization. Software modules have been developed and evaluated with the NASA C-MAPSS engine model. Several typical engine-fault modes, including a subset of sensor/actuator/components faults, were tested with a mild transient operation scenario. The simulation results demonstrated that the algorithm was able to successfully detect and isolate all simulated faults as long as the fault magnitudes were larger than the minimum detectable/isolable sizes, and no misdiagnosis occurred

  8. A Hospice Rotation for Military Medical Residents: A Mixed Methods, Multi-Perspective Program Evaluation

    PubMed Central

    Boyden, Jackelyn Y.; Kalish, Virginia B.; Muir, J. Cameron; Richardson, Suzanne; Connor, Stephen R.

    2016-01-01

    Abstract Background: An estimated 6,000 to 18,000 additional hospice and palliative medicine (HPM) physicians are needed in the United States. A source could be the military graduate medical education system where 15% of U.S. medical residents are trained. A community-based hospice and palliative care organization created a one-week rotation for military residents including participation in interdisciplinary group visits at patients' homes, facilities, and an inpatient hospice unit. Objective: Our goal was to evaluate the effectiveness of a one-week community HPM rotation for military medical residents. Methods: A mixed-methods, multi-stakeholder perspective program evaluation model was used for program years 2011 to 2013. Data were managed and analyzed using Microsoft Excel and Atlas.ti. Participants in the rotation were residents training at two local military hospitals. Program evaluation data were collected from residents, military program liaisons, and hospice clinical preceptors. Quantitative data included pre- and post-tests based on Accreditation Council for Graduate Medical Education competencies completed by residents. Qualitative data included resident essays and semi-structured interviews with hospice preceptors and military program liaisons. Results: Quantitative and qualitative data suggested that the rotation increased military residents' knowledge, attitudes, and comfort level with HPM. Quantitative analysis of test scores indicated improvements from pre- to post-tests in each of five areas of learning. Qualitative data indicated the rotation created a greater appreciation for the overall importance of HPM and increased understanding of eligibility and methods for pain and symptom management. Conclusions: A one-week community hospice rotation for medical military residents impacts participant's knowledge of and attitudes toward HPM. PMID:27139524

  9. A Design Science Research Methodology for Developing a Computer-Aided Assessment Approach Using Method Marking Concept

    ERIC Educational Resources Information Center

    Genemo, Hussein; Miah, Shah Jahan; McAndrew, Alasdair

    2016-01-01

    Assessment has been defined as an authentic method that plays an important role in evaluating students' learning attitude in acquiring lifelong knowledge. Traditional methods of assessment including the Computer-Aided Assessment (CAA) for mathematics show limited ability to assess students' full work unless multi-step questions are sub-divided…

  10. Development And Evaluation Of Stable Isotope And Fluorescent Labeling And Detection Methodologies For Tracking Injected Bacteria During In Situ Bioremediation

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Mark E. Fuller; Tullis C. Onstott

    2003-12-17

    This report summarizes the results of a research project conducted to develop new methods to label bacterial cells so that they could be tracked and enumerated as they move in the subsurface after they are introduced into the groundwater (i.e., during bioaugmentation). Labeling methods based on stable isotopes of carbon (13C) and vital fluorescent stains were developed. Both approaches proved successful with regards to the ability to effectively label bacterial cells. Several methods for enumeration of fluorescently-labeled cells were developed and validated, including near-real time microplate spectrofluorometry that could be performed in the field. However, the development of a novelmore » enumeration method for the 13C-enriched cells, chemical reaction interface/mass spectrometry (CRIMS), was not successful due to difficulties with the proposed instrumentation. Both labeling methodologies were successfully evaluated and validated during laboratory- and field-scale bacterial transport experiments. The methods developed during this research should be useful for future bacterial transport work as well as other microbial ecology research in a variety of environments. A full bibliography of research articles and meeting presentations related to this project is included (including web links to abstracts and full text reprints).« less

  11. Evaluation of beam wobbling methods for heavy-ion radiotherapy.

    PubMed

    Yonai, Shunsuke; Kanematsu, Nobuyuki; Komori, Masataka; Kanai, Tatsuaki; Takei, Yuka; Takahashi, Osamu; Isobe, Yoshiharu; Tashiro, Mutsumi; Koikegami, Hajime; Tomita, Hideki

    2008-03-01

    The National Institute of Radiological Sciences (NIRS) has extensively studied carbon-ion radiotherapy at the Heavy-Ion Medical Accelerator in Chiba (HIMAC) with some positive outcomes, and has established its efficacy. Therefore, efforts to distribute the therapy to the general public should be made, for which it is essential to enable direct application of clinical and technological experiences obtained at NIRS. For widespread use, it is very important to reduce the cost through facility downsizing with minimal acceleration energy to deliver the HIMAC-equivalent clinical beams. For the beam delivery system, the requirement of miniaturization is translated to reduction in length while maintaining the clinically available field size and penetration range for range-modulated uniform broad beams of regular fields that are either circular or square for simplicity. In this paper, we evaluate the various wobbling methods including original improvements, especially for application to the compact facilities through the experimental and computational studies. The single-ring wobbling method used at HIMAC is the best one including a lot of experience at HIMAC but the residual range is a fatal problem in the case of a compact facility. On the other hand, uniform wobbling methods such as the spiral and zigzag wobbling methods are effective and suitable for a compact facility. Furthermore, these methods can be applied for treatment with passive range modulation including respiratory gated irradiation. In theory, the choice between the spiral and zigzag wobbling methods depends on the shape of the required irradiation field. However, we found that it is better to use the zigzag wobbling method with transformation of the wobbling pattern even when a circular uniform irradiation field is required, because it is difficult to maintain the stability of the wobbler magnet due to the rapid change of the wobbler current in the spiral wobbling method. The regulated wobbling method, which is our improvement, can well expand the uniform irradiation field and lead to reducing the power requirement of the wobbler magnets. Our evaluations showed that the regulated zigzag wobbling method is the most suitable method for use in currently designed compact carbon-therapy facilities.

  12. A bibliography on formal methods for system specification, design and validation

    NASA Technical Reports Server (NTRS)

    Meyer, J. F.; Furchtgott, D. G.; Movaghar, A.

    1982-01-01

    Literature on the specification, design, verification, testing, and evaluation of avionics systems was surveyed, providing 655 citations. Journal papers, conference papers, and technical reports are included. Manual and computer-based methods were employed. Keywords used in the online search are listed.

  13. 48 CFR 44.303 - Extent of review.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... performance under that system. Special attention shall be given to— (a) The results of market research... methods of obtaining certified cost or pricing data, and data other than certified cost or pricing data; (d) Methods of evaluating subcontractor responsibility, including the contractor's use of the...

  14. Geotextile reinforced bridge approach embankment : Lake River Bridge - Malin Highway , Klamath County, Oregon : final report.

    DOT National Transportation Integrated Search

    1997-08-01

    An experimental construction method was evaluated at the Lost River Bridge in Klamath County to reduce the discontinuity between the bridge and the roadway. The method included combining soil in six 300-mm lifts interlaced with geotextile reinforceme...

  15. EVALUATION OF BIOSOLID SAMPLE PROCESSING TECHNIQUES TO MAXIMIZE RECOVERY OF BACTERIA

    EPA Science Inventory

    Current federal regulations (40 CFR 503) require enumeration of fecal coliform or Salmoella prior to land application of Class A biosolids. This regulation specifies use of enumeration methods included in "Standard Methods for the Examination of Water and Wastewater 18th Edition,...

  16. Skills methods to prevent smoking.

    PubMed

    Schinke, S P; Gilchrist, L D; Schilling, R F; Snow, W H; Bobo, J K

    1986-01-01

    School health educators have devoted much attention to cigarette smoking. Recent years have seen the testing of interventions to prevent smoking. To date, controlled studies have not evaluated the added value of skills methods for preventing smoking. This article describes such an evaluation with sixth-grade students from two schools. Subjects were pretested and randomly assigned to receive conventional health education methods or to receive skills intervention. Both conditions included films, peer testimonials, discussions, and homework. Health education condition subjects additionally participated in oral quizzes, games, and debates. Skills condition subjects additionally learned problem-solving, self-instruction, and interpersonal communication methods. At postintervention, skills condition subjects, more than health education condition subjects, had better scores on measures of smoking-related knowledge, attitudes, and intentions. In addition, reported cigarette use, validated by biochemical data collection, was lower in the skills condition than in the health education condition at all postintervention measurements, including a 24-month follow-up. The article discusses the strengths, limits, and implications of the study for other smoking prevention efforts in schools.

  17. Feeding, evaluating, and controlling rumen function.

    PubMed

    Lean, Ian J; Golder, Helen M; Hall, Mary Beth

    2014-11-01

    Achieving optimal rumen function requires an understanding of feeds and systems of nutritional evaluation. Key influences on optimal function include achieving good dry matter intake. The function of feeds in the rumen depends on other factors including chemical composition, rate of passage, degradation rate of the feed, availability of other substrates and cofactors, and individual animal variation. This article discusses carbohydrate, protein, and fat metabolism in the rumen, and provides practical means of evaluation of rations in the field. Conditions under which rumen function is suboptimal (ie, acidosis and bloat) are discussed, and methods for control examined. Copyright © 2014 Elsevier Inc. All rights reserved.

  18. Clinical Laboratory Evaluation of Electronic Cigarettes/Electronic Nicotine Delivery Systems: Methodological Challenges.

    PubMed

    Blank, Melissa D; Breland, Alison B; Cobb, Caroline O; Spindle, Tory; Ramôa, Carolina; Eissenberg, Thomas

    2016-10-01

    Evaluating electronic cigarettes (ECIGs) in the clinical laboratory is critical to understanding their effects. However, laboratory evaluation of ECIGs can be challenging, as they are a novel, varied, and evolving class of products. The objective of this paper is to describe some methodological challenges to the clinical laboratory evaluation of ECIGs. The authors gathered information about challenges involved in the laboratory evaluation of ECIGs. Challenges were categorized and solutions provided when possible. Methods used to study combustible cigarettes may need to be adapted to account for ECIG novelty and differences within the class. Challenges to ECIG evaluation can include issues related to 1) identification of ECIG devices and liquids, 2) determination of short -term ECIG abstinence, 3) measurement of use behavior, and 4) assessment of dependence. These challenges are discussed, and some suggestions to inform ECIG evaluation using clinical laboratory methods are provided. Awareness of challenges and developing, validating, and reporting methods used to address them aids interpretation of results and replication efforts, thus enhancing the rigor of science used to protect public health through appropriate, empirically-based, ECIG regulation.

  19. Evaluation methods for assessing effectiveness of in situ remediation of soil and sediment contaminated with organic pollutants and heavy metals.

    PubMed

    Song, Biao; Zeng, Guangming; Gong, Jilai; Liang, Jie; Xu, Piao; Liu, Zhifeng; Zhang, Yi; Zhang, Chen; Cheng, Min; Liu, Yang; Ye, Shujing; Yi, Huan; Ren, Xiaoya

    2017-08-01

    Soil and sediment contamination has become a critical issue worldwide due to its great harm to the ecological environment and public health. In recent years, many remediation technologies including physical, chemical, biological, and combined methods have been proposed and adopted for the purpose of solving the problems of soil and sediment contamination. However, current research on evaluation methods for assessing these remediation technologies is scattered and lacks valid and integrated evaluation methods for assessing the remediation effectiveness. This paper provides a comprehensive review with an environmental perspective on the evaluation methods for assessing the effectiveness of in situ remediation of soil and sediment contaminated with organic pollutants and heavy metals. The review systematically summarizes recent exploration and attempts of the remediation effectiveness assessment based on the content of pollutants, soil and sediment characteristics, and ecological risks. Moreover, limitations and future research needs of the practical assessment are discussed. These limitations are not conducive to the implementation of the abatement and control programs for soil and sediment contamination. Therefore, more attention should be paid to the evaluation methods for assessing the remediation effectiveness while developing new in situ remediation technologies in future research. Copyright © 2017 Elsevier Ltd. All rights reserved.

  20. Quantitative evaluation methods of skin condition based on texture feature parameters.

    PubMed

    Pang, Hui; Chen, Tianhua; Wang, Xiaoyi; Chang, Zhineng; Shao, Siqi; Zhao, Jing

    2017-03-01

    In order to quantitatively evaluate the improvement of the skin condition after using skin care products and beauty, a quantitative evaluation method for skin surface state and texture is presented, which is convenient, fast and non-destructive. Human skin images were collected by image sensors. Firstly, the median filter of the 3 × 3 window is used and then the location of the hairy pixels on the skin is accurately detected according to the gray mean value and color information. The bilinear interpolation is used to modify the gray value of the hairy pixels in order to eliminate the negative effect of noise and tiny hairs on the texture. After the above pretreatment, the gray level co-occurrence matrix (GLCM) is calculated. On the basis of this, the four characteristic parameters, including the second moment, contrast, entropy and correlation, and their mean value are calculated at 45 ° intervals. The quantitative evaluation model of skin texture based on GLCM is established, which can calculate the comprehensive parameters of skin condition. Experiments show that using this method evaluates the skin condition, both based on biochemical indicators of skin evaluation methods in line, but also fully consistent with the human visual experience. This method overcomes the shortcomings of the biochemical evaluation method of skin damage and long waiting time, also the subjectivity and fuzziness of the visual evaluation, which achieves the non-destructive, rapid and quantitative evaluation of skin condition. It can be used for health assessment or classification of the skin condition, also can quantitatively evaluate the subtle improvement of skin condition after using skin care products or stage beauty.

  1. Evaluation method on steering for the shape-shifting robot in different configurations

    NASA Astrophysics Data System (ADS)

    Chang, Jian; Li, Bin; Wang, Chong; Zheng, Huaibing; Li, Zhiqiang

    2016-01-01

    The evaluation method on steering is based on qualitative manner in existence, which causes the result inaccurate and fuzziness. It reduces the efficiency of process execution. So the method by quantitative manner for the shape-shifting robot in different configurations is proposed. Comparing to traditional evaluation method, the most important aspects which can influence the steering abilities of the robot in different configurations are researched in detail, including the energy, angular velocity, time and space. In order to improve the robustness of system, the ideal and slippage conditions are all considered by mathematical model. Comparing to the traditional weighting confirming method, the extent of robot steering method is proposed by the combination of subjective and objective weighting method. The subjective weighting method can show more preferences of the experts and is based on five-grade scale. The objective weighting method is based on information entropy to determine the factors. By the sensors fixed on the robot, the contract force between track grouser and ground, the intrinsic motion characteristics of robot are obtained and the experiment is done to prove the algorithm which is proposed as the robot in different common configurations. Through the method proposed in the article, fuzziness and inaccurate of the evaluation method has been solved, so the operators can choose the most suitable configuration of the robot to fulfil the different tasks more quickly and simply.

  2. Selection of a method to rate the strength of scientific evidence for AORN recommendations.

    PubMed

    Steelman, Victoria M; Pape, Theresa; King, Cecil A; Graling, Paula; Gaberson, Kathleen B

    2011-04-01

    The use of scientific evidence to support national recommendations about clinical decisions has become an expectation of multidisciplinary health care organizations. The objectives of this project were to identify the most applicable evidence-rating method for perioperative nursing practice, evaluate the reliability of this method for perioperative nursing recommendations, and identify barriers and facilitators to adoption of this method for AORN recommendations. A panel of perioperative nurse experts evaluated 46 evidence-rating systems for quality, quantity, and consistency. We rated the methods that fully covered all three domains on five aspects of applicability to perioperative nursing practice recommendations. The Oncology Nursing Society's method was rated highest for all five aspects of applicability, and interrater reliability of this method for perioperative recommendations was 100%. Potential barriers to implementation of the rating method include knowledge deficit, staff resources, resistance to change, and fear of showing that lower levels of evidence support some recommendations. Facilitators included education, resource allocation, and starting small. Barriers and facilitators will be considered by the implementation team that will develop a plan to achieve integration of evidence rating into AORN documents. The AORN Board of Directors approved adoption of this method in June 2010. Copyright © 2011 AORN, Inc. Published by Elsevier Inc. All rights reserved.

  3. Indigenous health program evaluation design and methods in Australia: a systematic review of the evidence.

    PubMed

    Lokuge, Kamalini; Thurber, Katherine; Calabria, Bianca; Davis, Meg; McMahon, Kathryn; Sartor, Lauren; Lovett, Raymond; Guthrie, Jill; Banks, Emily

    2017-10-01

    Indigenous Australians experience a disproportionately higher burden of disease compared to non-Indigenous Australians. High-quality evaluation of Indigenous health programs is required to inform health and health services improvement. We aimed to quantify methodological and other characteristics of Australian Indigenous health program evaluations published in the peer-reviewed literature. Systematic review of peer-reviewed literature (November 2009-2014) on Indigenous health program evaluation. We identified 118 papers describing evaluations of 109 interventions; 72.0% were university/research institution-led. 82.2% of evaluations included a quantitative component; 49.2% utilised quantitative data only and 33.1% used both quantitative and qualitative data. The most common design was a before/after comparison (30.5%, n=36/118). 7.6% of studies (n=9/118) used an experimental design: six individual-level and three cluster-randomised controlled trials. 56.8% (67/118) reported on service delivery/process outcomes (versus health or health risk factor outcomes) only. Given the number of Indigenous health programs that are implemented, few evaluations overall are published in the peer-reviewed literature and, of these, few use optimal methodologies such as mixed methods and experimental design. Implications for public health: Multiple strategies are required to increase high-quality, accessible evaluation in Indigenous health, including supporting stronger research-policy-practice partnerships and capacity building for evaluation by health services and government. © 2017 The Authors.

  4. Invited Article: Concepts and tools for the evaluation of measurement uncertainty

    NASA Astrophysics Data System (ADS)

    Possolo, Antonio; Iyer, Hari K.

    2017-01-01

    Measurements involve comparisons of measured values with reference values traceable to measurement standards and are made to support decision-making. While the conventional definition of measurement focuses on quantitative properties (including ordinal properties), we adopt a broader view and entertain the possibility of regarding qualitative properties also as legitimate targets for measurement. A measurement result comprises the following: (i) a value that has been assigned to a property based on information derived from an experiment or computation, possibly also including information derived from other sources, and (ii) a characterization of the margin of doubt that remains about the true value of the property after taking that information into account. Measurement uncertainty is this margin of doubt, and it can be characterized by a probability distribution on the set of possible values of the property of interest. Mathematical or statistical models enable the quantification of measurement uncertainty and underlie the varied collection of methods available for uncertainty evaluation. Some of these methods have been in use for over a century (for example, as introduced by Gauss for the combination of mutually inconsistent observations or for the propagation of "errors"), while others are of fairly recent vintage (for example, Monte Carlo methods including those that involve Markov Chain Monte Carlo sampling). This contribution reviews the concepts, models, methods, and computations that are commonly used for the evaluation of measurement uncertainty, and illustrates their application in realistic examples drawn from multiple areas of science and technology, aiming to serve as a general, widely accessible reference.

  5. Program Evaluation of a School District's Multisensory Reading Initiative

    ERIC Educational Resources Information Center

    Asip, Michael Patrick

    2012-01-01

    The purpose of this study was to conduct a formative program evaluation of a school district's multisensory reading initiative. The mixed methods study involved semi-structured interviews, online survey, focus groups, document review, and analysis of extant special education student reading achievement data. Participants included elementary…

  6. Truancy Interventions: A Review of the Research Literature

    ERIC Educational Resources Information Center

    Sutphen, Richard D.; Ford, Janet P.; Flaherty, Chris

    2010-01-01

    Objectives: This article presents a systematic review of the literature on evaluative studies of truancy interventions. Method: Included studies evaluating truancy interventions appearing in peer-reviewed academic journals from 1990 to 2007. Findings: In total, 16 studies were assessed. Eight studies used group comparison designs and eight studies…

  7. 38 CFR 1.17 - Evaluation of studies relating to health effects of radiation exposure.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... health effects of radiation exposure. (a) From time to time, the Secretary shall publish evaluations of... paragraph a valid study is one which: (i) Has adequately described the study design and methods of data... studies affecting epidemiological assessments including case series, correlational studies and studies...

  8. 38 CFR 1.17 - Evaluation of studies relating to health effects of radiation exposure.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... health effects of radiation exposure. (a) From time to time, the Secretary shall publish evaluations of... paragraph a valid study is one which: (i) Has adequately described the study design and methods of data... studies affecting epidemiological assessments including case series, correlational studies and studies...

  9. 38 CFR 1.17 - Evaluation of studies relating to health effects of radiation exposure.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... health effects of radiation exposure. (a) From time to time, the Secretary shall publish evaluations of... paragraph a valid study is one which: (i) Has adequately described the study design and methods of data... studies affecting epidemiological assessments including case series, correlational studies and studies...

  10. 38 CFR 1.17 - Evaluation of studies relating to health effects of radiation exposure.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... health effects of radiation exposure. (a) From time to time, the Secretary shall publish evaluations of... paragraph a valid study is one which: (i) Has adequately described the study design and methods of data... studies affecting epidemiological assessments including case series, correlational studies and studies...

  11. 38 CFR 1.17 - Evaluation of studies relating to health effects of radiation exposure.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... health effects of radiation exposure. (a) From time to time, the Secretary shall publish evaluations of... paragraph a valid study is one which: (i) Has adequately described the study design and methods of data... studies affecting epidemiological assessments including case series, correlational studies and studies...

  12. Evaluation of methodology for detecting/predicting migration of forest species

    Treesearch

    Dale S. Solomon; William B. Leak

    1996-01-01

    Available methods for analyzing migration of forest species are evaluated, including simulation models, remeasured plots, resurveys, pollen/vegetation analysis, and age/distance trends. Simulation models have provided some of the most drastic estimates of species changes due to predicted changes in global climate. However, these models require additional testing...

  13. Computer-Based Training for Library Staff: From Demonstration to Continuing Program.

    ERIC Educational Resources Information Center

    Bayne, Pauline S.

    1993-01-01

    Describes a demonstration project developed at the University of Tennessee (Knoxville) libraries to train nonprofessional library staff with computer-based training using HyperCard that was created by librarians rather than by computer programmers. Evaluation methods are discussed, including formative and summative evaluation; and modifications…

  14. The Impact of Multiple Strategies to Encourage Fruit and Vegetable Consumption during School Lunch

    ERIC Educational Resources Information Center

    Thompson, Emily; Johnson, David C.; Leite-Bennett, Amy; Ding, Yingmei; Mehrotra, Komal

    2017-01-01

    Background: Hennepin County partnered with schools to implement lunchroom strategies to encourage fruit and vegetable consumption. An in-depth evaluation measured changes in consumption following implementation of encouragement strategies including slicing apples and attractive labels. Methods: A pre-post prospective evaluation measured changes in…

  15. Assessing the Value of the Enviroscape Watershed Learning Module

    ERIC Educational Resources Information Center

    Edwards, Warren Patrick

    2013-01-01

    Scope and Method of Study: The researcher's evaluation of the West Atlanta Watershed Alliance's (WAWA) programs highlighted that few if any of the offered educational programs included a program evaluation, especially the most promising, the Enviroscape® Watershed learning module. The education programs that were customized and developed by the…

  16. 45 CFR 2522.700 - How does evaluation differ from performance measurement?

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... progress, evaluation uses scientifically-based research methods to assess the effectiveness of programs by... the reading ability of students in a program over time to a similar group of students not... example, a performance measure for a literacy program may include the percentage of students receiving...

  17. Evaluation of the protective efficiency of a new oxygen mask for aircraft passenger use to 40,000 feet.

    DOT National Transportation Integrated Search

    1980-10-01

    This report describes the methods used in the evaluation of a new continuous-flow, phase-dilution passenger oxygen mask for compliance to FAA technical Standard Order (TSO)-C64 requirements. Data presented include end expiratory partial pressures for...

  18. Colorado Even Start. 1998-1999 Progress Report.

    ERIC Educational Resources Information Center

    Anderson, Beckie

    Even Start programs integrate early childhood education, adult literacy or basic education, parenting education and support, and parent and child time to help break the cycle of poverty and illiteracy. This report describes the Even Start program in Colorado, and includes evaluation questions and methods. The report presents evaluation findings…

  19. The Very Essentials of Fitness for Trial Assessment in Canada

    ERIC Educational Resources Information Center

    Newby, Diana; Faltin, Robert

    2008-01-01

    Fitness for trial constitutes the most frequent referral to forensic assessment services. Several approaches to this evaluation exist in Canada, including the Fitness Interview Test and Basic Fitness for Trial Test. The following article presents a review of the issues and a method for basic fitness for trial evaluation.

  20. Analysis of Utah Career Ladder Plans.

    ERIC Educational Resources Information Center

    Murphy, Michael J.; And Others

    This report analyzes the content and development of the 45 school district career ladder plans submitted in 1984 to the Utah State Office of Education. Descriptive commentary and data tables are used to examine (1) the structure and composition of planning committees; (2) teacher evaluation provisions, including changes in evaluation methods, the…

  1. Program Evaluation in Alternative Education: An Annotated Bibliography. Teacher Education Forum; Volume 4, Number 17.

    ERIC Educational Resources Information Center

    Esp, Barbara

    The Forum Series is a collection of papers dealing with all phases of teacher education including inservice training and graduate study. This selection is an annotated bibliography in two parts: (1) Evaluation Issues and Methods; and (2) Studies of Alternative Environments. (DMT)

  2. Supporting School Leaders in Blended Learning with Blended Learning

    ERIC Educational Resources Information Center

    Acree, Lauren; Gibson, Theresa; Mangum, Nancy; Wolf, Mary Ann; Kellogg, Shaun; Branon, Suzanne

    2017-01-01

    This study provides a mixed-methods case-study design evaluation of the Leadership in Blended Learning (LBL) program. The LBL program uses blended approaches, including face-to-face and online, to prepare school leaders to implement blended learning initiatives in their schools. This evaluation found that the program designers effectively…

  3. Research in remote sensing of agriculture, earth resources, and man's environment

    NASA Technical Reports Server (NTRS)

    Landgrebe, D. A.

    1975-01-01

    Progress is reported for several projects involving the utilization of LANDSAT remote sensing capabilities. Areas under study include crop inventory, crop identification, crop yield prediction, forest resources evaluation, land resources evaluation and soil classification. Numerical methods for image processing are discussed, particularly those for image enhancement and analysis.

  4. A simplified flight-test method for determining aircraft takeoff performance that includes effects of pilot technique

    NASA Technical Reports Server (NTRS)

    Larson, T. J.; Schweikhard, W. G.

    1974-01-01

    A method for evaluating aircraft takeoff performance from brake release to air-phase height that requires fewer tests than conventionally required is evaluated with data for the XB-70 airplane. The method defines the effects of pilot technique on takeoff performance quantitatively, including the decrease in acceleration from drag due to lift. For a given takeoff weight and throttle setting, a single takeoff provides enough data to establish a standardizing relationship for the distance from brake release to any point where velocity is appropriate to rotation. The lower rotation rates penalized takeoff performance in terms of ground roll distance; the lowest observed rotation rate required a ground roll distance that was 19 percent longer than the highest. Rotations at the minimum rate also resulted in lift-off velocities that were approximately 5 knots lower than the highest rotation rate at any given lift-off distance.

  5. Comparative analysis of autofocus functions in digital in-line phase-shifting holography.

    PubMed

    Fonseca, Elsa S R; Fiadeiro, Paulo T; Pereira, Manuela; Pinheiro, António

    2016-09-20

    Numerical reconstruction of digital holograms relies on a precise knowledge of the original object position. However, there are a number of relevant applications where this parameter is not known in advance and an efficient autofocusing method is required. This paper addresses the problem of finding optimal focusing methods for use in reconstruction of digital holograms of macroscopic amplitude and phase objects, using digital in-line phase-shifting holography in transmission mode. Fifteen autofocus measures, including spatial-, spectral-, and sparsity-based methods, were evaluated for both synthetic and experimental holograms. The Fresnel transform and the angular spectrum reconstruction methods were compared. Evaluation criteria included unimodality, accuracy, resolution, and computational cost. Autofocusing under angular spectrum propagation tends to perform better with respect to accuracy and unimodality criteria. Phase objects are, generally, more difficult to focus than amplitude objects. The normalized variance, the standard correlation, and the Tenenbaum gradient are the most reliable spatial-based metrics, combining computational efficiency with good accuracy and resolution. A good trade-off between focus performance and computational cost was found for the Fresnelet sparsity method.

  6. A scoping review of malaria forecasting: past work and future directions

    PubMed Central

    Zinszer, Kate; Verma, Aman D; Charland, Katia; Brewer, Timothy F; Brownstein, John S; Sun, Zhuoyu; Buckeridge, David L

    2012-01-01

    Objectives There is a growing body of literature on malaria forecasting methods and the objective of our review is to identify and assess methods, including predictors, used to forecast malaria. Design Scoping review. Two independent reviewers searched information sources, assessed studies for inclusion and extracted data from each study. Information sources Search strategies were developed and the following databases were searched: CAB Abstracts, EMBASE, Global Health, MEDLINE, ProQuest Dissertations & Theses and Web of Science. Key journals and websites were also manually searched. Eligibility criteria for included studies We included studies that forecasted incidence, prevalence or epidemics of malaria over time. A description of the forecasting model and an assessment of the forecast accuracy of the model were requirements for inclusion. Studies were restricted to human populations and to autochthonous transmission settings. Results We identified 29 different studies that met our inclusion criteria for this review. The forecasting approaches included statistical modelling, mathematical modelling and machine learning methods. Climate-related predictors were used consistently in forecasting models, with the most common predictors being rainfall, relative humidity, temperature and the normalised difference vegetation index. Model evaluation was typically based on a reserved portion of data and accuracy was measured in a variety of ways including mean-squared error and correlation coefficients. We could not compare the forecast accuracy of models from the different studies as the evaluation measures differed across the studies. Conclusions Applying different forecasting methods to the same data, exploring the predictive ability of non-environmental variables, including transmission reducing interventions and using common forecast accuracy measures will allow malaria researchers to compare and improve models and methods, which should improve the quality of malaria forecasting. PMID:23180505

  7. Interrupted Time Series Versus Statistical Process Control in Quality Improvement Projects.

    PubMed

    Andersson Hagiwara, Magnus; Andersson Gäre, Boel; Elg, Mattias

    2016-01-01

    To measure the effect of quality improvement interventions, it is appropriate to use analysis methods that measure data over time. Examples of such methods include statistical process control analysis and interrupted time series with segmented regression analysis. This article compares the use of statistical process control analysis and interrupted time series with segmented regression analysis for evaluating the longitudinal effects of quality improvement interventions, using an example study on an evaluation of a computerized decision support system.

  8. Impact of the Macmillan specialist Care at Home service: a mixed methods evaluation across six sites.

    PubMed

    Johnston, Bridget; Patterson, Anne; Bird, Lydia; Wilson, Eleanor; Almack, Kathryn; Mathews, Gillian; Seymour, Jane

    2018-02-23

    The Midhurst Macmillan Specialist Palliative Care at Home Service was founded in 2006 to improve community-based palliative care provision. Principal components include; early referral; home-based clinical interventions; close partnership working; and flexible teamwork. Following a successful introduction, the model was implemented in six further sites across England. This article reports a mixed methods evaluation of the implementation across these 'Innovation Centres'. The evaluation aimed to assess the process and impact on staff, patients and carers of providing Macmillan Specialist Care at Home services across the six sites. The study was set within a Realist Evaluation framework and used a longitudinal, mixed methods research design. Data collection over 15 months (2014-2016) included: Quantitative outcome measures - Palliative Performance Scale [PPS] and Palliative Prognostic Index [PPI] (n = 2711); Integrated Palliative Outcome Scales [IPOS] (n = 1157); Carers Support Needs Assessment Tool [CSNAT] (n = 241); Views of Informal Carers -Evaluation of Services [VOICES-SF] (n = 102); a custom-designed Service Data Tool [SDT] that gathered prospective data from each site (n = 88). Qualitative data methods included: focus groups with project team and staff (n = 32 groups with n = 190 participants), and, volunteers (n = 6 groups with n = 32 participants). Quantitative data were analysed using SPPS Vs. 21 and qualitative data was examined via thematic analysis. Comparison of findings across the six sites revealed the impact of their unique configurations on outcomes, compounded by variations in stage and mode of implementation. PPS, PPI and IPOS data revealed disparity in early referral criteria, complicated by contrasting interpretations of palliative care. The qualitative analysis, CSNAT and VOICES-SF data confirmed the value of the Macmillan model of care but uptake of specialist home-based clinical interventions was limited. The Macmillan brand engendered patient and carer confidence, bringing added value to existing services. Significant findings included better co-ordination of palliative care through project management and a single referral point and multi-disciplinary teamwork including leadership from consultants in palliative medicine, the role of health care assistants in rapid referral, and volunteer support. Macmillan Specialist Care at Home increases patient choice about place of death and enhances the quality of end of life experience. Clarification of key components is advocated to aid consistency of implementation across different sites and support future evaluative work.

  9. Multi-parametric centrality method for graph network models

    NASA Astrophysics Data System (ADS)

    Ivanov, Sergei Evgenievich; Gorlushkina, Natalia Nikolaevna; Ivanova, Lubov Nikolaevna

    2018-04-01

    The graph model networks are investigated to determine centrality, weights and the significance of vertices. For centrality analysis appliesa typical method that includesany one of the properties of graph vertices. In graph theory, methods of analyzing centrality are used: in terms by degree, closeness, betweenness, radiality, eccentricity, page-rank, status, Katz and eigenvector. We have proposed a new method of multi-parametric centrality, which includes a number of basic properties of the network member. The mathematical model of multi-parametric centrality method is developed. Comparison of results for the presented method with the centrality methods is carried out. For evaluate the results for the multi-parametric centrality methodthe graph model with hundreds of vertices is analyzed. The comparative analysis showed the accuracy of presented method, includes simultaneously a number of basic properties of vertices.

  10. Assessment of periodontal bone level revisited: a controlled study on the diagnostic accuracy of clinical evaluation methods and intra-oral radiography.

    PubMed

    Christiaens, Véronique; De Bruyn, Hugo; Thevissen, Eric; Koole, Sebastiaan; Dierens, Melissa; Cosyn, Jan

    2018-01-01

    The accuracy of analogue and especially digital intra-oral radiography in assessing interdental bone level needs further documentation. The aim of this study was to compare clinical and radiographic bone level assessment to intra-surgical bone level registration (1) and to identify the clinical variables rendering interdental bone level assessment inaccurate (2). The study sample included 49 interdental sites in 17 periodontitis patients. Evaluation methods included vertical relative probing attachment level (RAL-V), analogue and digital intra-oral radiography and bone sounding without and with flap elevation. The latter was considered the true bone level. Five examiners evaluated all radiographs. Significant underestimation of the true bone level was observed for all evaluation methods pointing to 2.7 mm on average for analogue radiography, 2.5 mm for digital radiography, 1.8 mm for RAL-V and 0.6 mm for bone sounding without flap elevation (p < 0.001). Radiographic underestimation of the true bone level was higher in the (pre)molar region (p ≤ 0.047) and increased with defect depth (p < 0.001). Variation between clinicians was huge (range analogue radiography 2.2-3.2 mm; range digital radiography 2.1-3.0 mm). All evaluation methods significantly underestimated the true bone level. Bone sounding was most accurate, whereas intra-oral radiographs were least accurate. Deep periodontal defects in the (pre)molar region were most underrated by intra-oral radiography. Bone sounding had the highest accuracy in assessing interdental bone level.

  11. Phantom-based evaluation method for surgical assistance devices in minimally invasive cochlear implantation

    NASA Astrophysics Data System (ADS)

    Lexow, G. Jakob; Kluge, Marcel; Majdani, Omid; Lenarz, Thomas; Rau, Thomas S.

    2017-03-01

    Several research groups have proposed individual solutions for surgical assistance devices to perform minimally invasive cochlear implantation. The main challenge is the drilling of a small bore hole from the surface of the skull to the inner ear at submillimetric accuracy. Each group tested the accuracy of their device in their respective test bench or in a small number of temporal bone specimens. This complicates the comparison of the different approaches. Thus, a simple and inexpensive phantom based evaluation method is proposed which resembles clinical conditions. The method is based on half-skull phantoms made of bone-substitute material - optionally equipped with an artificial skin replica to include skin incision within the evaluation procedure. Anatomical structures of the temporal bone derived from segmentations using clinical imaging data are registered into a computer tomographic scan of the skull phantom and used for the planning of the drill trajectory. Drilling is performed with the respective device under conditions close to the intraoperative setting. Evaluation of accuracy can either be performed through postoperative imaging or by means of added targets on the inside of the skull model. Two different targets are proposed: simple reference marks only for measuring the accuracy of the device and a target containing a scala tympani model for evaluation of the complete workflow including the insertion of the electrode carrier. Experiments using the presented method take place under reproducible conditions thus allowing the comparison of the different approaches. In addition, artificial phantoms are easier to obtain and handle than human specimens.

  12. Ohio's Abandoned Mine Lands Reclamation Program: a Study of Data Collection and Evaluation Techniques

    NASA Technical Reports Server (NTRS)

    Sperry, S. L.

    1982-01-01

    The planning process for a statewide reclamation plan of Ohio abandoned minelands in response to the Federal Surface Mining Control and Reclamation Act of 1977 included: (1) the development of a screening and ranking methodology; (2) the establishment of a statewide review of major watersheds affected by mining; (3) the development of an immediate action process; and (4) a prototypical study of a priority watershed demonstrating the data collection, analysis, display and evaluation to be used for the remaining state watersheds. Historical methods for satisfying map information analysis and evaluation, as well as current methodologies being used were discussed. Various computer mapping and analysis programs were examined for their usability in evaluating the priority reclamation sites. Hand methods were chosen over automated procedures; intuitive evaluation was the primary reason.

  13. Evaluation of (GTG)5-PCR for identification of Enterococcus spp.

    PubMed

    Svec, Pavel; Vancanneyt, Marc; Seman, Milan; Snauwaert, Cindy; Lefebvre, Karen; Sedlácek, Ivo; Swings, Jean

    2005-06-01

    A set of reference strains and a group of previously unidentified enterococci were analysed by rep-PCR with the (GTG)(5) primer to evaluate the discriminatory power and suitability of this method for typing and identification of enterococcal species. A total of 49 strains representing all validly described species were obtained from bacterial collections. For more extensive evaluation of this identification approach 112 well-defined and identified enterococci isolated from bryndza cheese were tested. The (GTG)(5)-PCR fingerprinting assigned all strains into well-differentiated clusters representing individual species. Subsequently, a group including 44 unidentified enterococci isolated from surface waters was analysed to evaluate this method for identification of unknown isolates. Obtained band patterns allowed us to identify all the strains clearly to the species level. This study proved that rep-PCR with (GTG)(5) primer is a reliable and fast method for species identification of enterococci.

  14. EVALUATION OF AN ALTERNATIVE IMS DISSOCIATION PROCEDURE FOR USE WITH METHOD 1622: DETECTION OF CRYPTOSPORIDIUM IN WATER

    EPA Science Inventory

    U.S. EPA Method 1623 is used to detect and quantify Cruptosporidum spp. oocysts in ater. The protocol consists of filtration, immunomagnetic separation (IMS), staining with a fluorescent antibody, and microscopic analysis. Microscopic analysis includes detection by fluorescent ...

  15. Contemporary computerized methods for logging planning

    Treesearch

    Chris B. LeDoux

    1988-01-01

    Contemporary harvest planning graphic software is highlighted with practical applications. Planning results from a production study of the Clearwater Cable Yarder are summarized. Application of the planning methods to evaluation of proposed silvicultural treatments is included. Results show that 3-dimensional graphic analysis of proposed harvesting or silvicultural...

  16. The Mass Spectrometric Ortho Effect Studied for All 209 PCB Congeners

    EPA Science Inventory

    A method for the determination of polychlorinated biphenyls (PCBs) in caulk was developed; with application to a set of caulk and window glazing material samples. This method was evaluated by analyzing a combination of 47 samples of caulk, glazing materials, and including quality...

  17. Automated volumetry of hippocampus is useful to confirm unilateral mesial temporal sclerosis in patients with radiologically positive findings.

    PubMed

    Silva, Guilherme; Martins, Cristina; Moreira da Silva, Nádia; Vieira, Duarte; Costa, Dias; Rego, Ricardo; Fonseca, José; Silva Cunha, João Paulo

    2017-08-01

    Background and purpose We evaluated two methods to identify mesial temporal sclerosis (MTS): visual inspection by experienced epilepsy neuroradiologists based on structural magnetic resonance imaging sequences and automated hippocampal volumetry provided by a processing pipeline based on the FMRIB Software Library. Methods This retrospective study included patients from the epilepsy monitoring unit database of our institution. All patients underwent brain magnetic resonance imaging in 1.5T and 3T scanners with protocols that included thin coronal T2, T1 and fluid-attenuated inversion recovery and isometric T1 acquisitions. Two neuroradiologists with experience in epilepsy and blinded to clinical data evaluated magnetic resonance images for the diagnosis of MTS. The diagnosis of MTS based on an automated method included the calculation of a volumetric asymmetry index between the two hippocampi of each patient and a threshold value to define the presence of MTS obtained through statistical tests (receiver operating characteristics curve). Hippocampi were segmented for volumetric quantification using the FIRST tool and fslstats from the FMRIB Software Library. Results The final cohort included 19 patients with unilateral MTS (14 left side): 14 women and a mean age of 43.4 ± 10.4 years. Neuroradiologists had a sensitivity of 100% and specificity of 73.3% to detect MTS (gold standard, k = 0.755). Automated hippocampal volumetry had a sensitivity of 84.2% and specificity of 86.7% (k = 0.704). Combined, these methods had a sensitivity of 84.2% and a specificity of 100% (k = 0.825). Conclusions Automated volumetry of the hippocampus could play an important role in temporal lobe epilepsy evaluation, namely on confirmation of unilateral MTS diagnosis in patients with radiological suggestive findings.

  18. Lagrangian methods for blood damage estimation in cardiovascular devices--How numerical implementation affects the results.

    PubMed

    Marom, Gil; Bluestein, Danny

    2016-01-01

    This paper evaluated the influence of various numerical implementation assumptions on predicting blood damage in cardiovascular devices using Lagrangian methods with Eulerian computational fluid dynamics. The implementation assumptions that were tested included various seeding patterns, stochastic walk model, and simplified trajectory calculations with pathlines. Post processing implementation options that were evaluated included single passage and repeated passages stress accumulation and time averaging. This study demonstrated that the implementation assumptions can significantly affect the resulting stress accumulation, i.e., the blood damage model predictions. Careful considerations should be taken in the use of Lagrangian models. Ultimately, the appropriate assumptions should be considered based the physics of the specific case and sensitivity analysis, similar to the ones presented here, should be employed.

  19. Clinical assessment of nutritional status and feeding programs in horses.

    PubMed

    Becvarova, Iveta; Pleasant, R Scott; Thatcher, Craig D

    2009-04-01

    Veterinarians are a primary source of nutritional information and advice for horse owners. This article reviews methods for clinical assessment of nutritional status and feeding programs that can be applied to an individual horse or group of horses. Physical examination, including measurement of body weight and evaluation of body condition score, estimation of nutrient requirements and the nutrient content of the horse's diet, and evaluation of the feeding method are important components of the assessment. Ongoing clinical assessment of health and body condition will gauge the need for reassessment of the feeding plan. Obvious indications for prompt reevaluation of diet and feeding include changes in health status (eg, body condition), life stage or physiologic state (eg, pregnancy), or performance status.

  20. Development of a design basis tornado and structural design criteria for the Nevada Test Site, Nevada. Final report

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    McDonald, J.R.; Minor, J.E.; Mehta, K.C.

    1975-06-01

    In order to evaluate the ability of critical facilities at the Nevada Test Site to withstand the possible damaging effects of extreme winds and tornadoes, parameters for the effects of tornadoes and extreme winds and structural design criteria for the design and evaluation of structures were developed. The meteorological investigations conducted are summarized, and techniques used for developing the combined tornado and extreme wind risk model are discussed. The guidelines for structural design include methods for calculating pressure distributions on walls and roofs of structures and methods for accommodating impact loads from wind-driven missiles. Calculations for determining the design loadsmore » for an example structure are included. (LCL)« less

  1. 'CHEATS': a generic information communication technology (ICT) evaluation framework.

    PubMed

    Shaw, Nicola T

    2002-05-01

    This paper describes a generic framework for the evaluation of information communication technologies. This framework, CHEATS, utilises both qualitative and quantitative research methods and has proved appropriate in multiple clinical settings including telepsychiatry, teledermatology and teleeducation. The paper demonstrates how a multidisciplinary approach is essential when evaluating new and emerging technologies, particularly when such systems are implemented in real service as opposed to a research setting.

  2. An Evaluation of the El Centro de la Causa Library and Information Center: August 1973 through July 1974. Final Report.

    ERIC Educational Resources Information Center

    Michael, Mary Ellen; Encarnacion, Leticia

    An evaluation of Chicago's El Centro de la Causa Library and Information Center was undertaken by the University of Illinois Library Research Center in 1974. Evaluation methods included: (1) a survey of user and nonuser characteristics and attitudes concerning library services; (2) a survey of the needs and information-seeking behavior of people…

  3. The use of quality-adjusted life-years in the economic evaluation of health technologies in Spain: a review of the 1990-2009 literature.

    PubMed

    Rodriguez, José Manuel; Paz, Silvia; Lizan, Luis; Gonzalez, Paloma

    2011-06-01

    To appraise economic evaluations of health technologies that included quality-adjusted life-years (QALYs) as an outcome measure conducted over the past 20 years in Spain. A systematic review of the literature was conducted. Economic evaluations that included QALYs as an outcome measure, conducted in Spain and published between January 1990 and December 2009 were identified. Primary and gray literature sources were reviewed. A total of 60 articles and 4 health technology assessment reports were included. Key findings were 1) the vast majority of articles (77.1%) referred to therapeutic interventions; 2) 63.2% dealt with pharmaceutical products and much fewer with preventive strategies, medical devices, or diagnostic interventions; 3) most evaluations referred to cardiovascular- (19.8%), respiratory- (16.3%), and cancer- (13.0%) related processes; 4) 80.3% were based on a theoretical model, most commonly Markov models (71.4%); 5) 67.3% adopted the National Health System perspective; 6) information on the methods used to describe the health states was given in 45.1% of studies; 7) 40.3% used the EuroQoL-5D to elicit preferences, whereas 66.1% gave no details on the methods applied to determine patients' choices; 8) it was possible to state who completed the questionnaires in only 17.7% of studies; 9) 77.1% of the interventions assessed were below the €30,000/QALY suggested affordable threshold in Spain. An increasing number of economic evaluations using QALYs had been conducted. Most of them relied on theoretical models. Several methodological issues remain unsolved. Great disparity exists regarding the reporting of the methods used to determine health states and utility values. Copyright © 2011. Published by Elsevier Inc.

  4. Development of an Adaptable Display and Diagnostic System for the Evaluation of Tropical Cyclone Forecasts

    NASA Astrophysics Data System (ADS)

    Kucera, P. A.; Burek, T.; Halley-Gotway, J.

    2015-12-01

    NCAR's Joint Numerical Testbed Program (JNTP) focuses on the evaluation of experimental forecasts of tropical cyclones (TCs) with the goal of developing new research tools and diagnostic evaluation methods that can be transitioned to operations. Recent activities include the development of new TC forecast verification methods and the development of an adaptable TC display and diagnostic system. The next generation display and diagnostic system is being developed to support evaluation needs of the U.S. National Hurricane Center (NHC) and broader TC research community. The new hurricane display and diagnostic capabilities allow forecasters and research scientists to more deeply examine the performance of operational and experimental models. The system is built upon modern and flexible technology that includes OpenLayers Mapping tools that are platform independent. The forecast track and intensity along with associated observed track information are stored in an efficient MySQL database. The system provides easy-to-use interactive display system, and provides diagnostic tools to examine forecast track stratified by intensity. Consensus forecasts can be computed and displayed interactively. The system is designed to display information for both real-time and for historical TC cyclones. The display configurations are easily adaptable to meet the needs of the end-user preferences. Ongoing enhancements include improving capabilities for stratification and evaluation of historical best tracks, development and implementation of additional methods to stratify and compute consensus hurricane track and intensity forecasts, and improved graphical display tools. The display is also being enhanced to incorporate gridded forecast, satellite, and sea surface temperature fields. The presentation will provide an overview of the display and diagnostic system development and demonstration of the current capabilities.

  5. A novel knowledge-based potential for RNA 3D structure evaluation

    NASA Astrophysics Data System (ADS)

    Yang, Yi; Gu, Qi; Zhang, Ben-Gong; Shi, Ya-Zhou; Shao, Zhi-Gang

    2018-03-01

    Ribonucleic acids (RNAs) play a vital role in biology, and knowledge of their three-dimensional (3D) structure is required to understand their biological functions. Recently structural prediction methods have been developed to address this issue, but a series of RNA 3D structures are generally predicted by most existing methods. Therefore, the evaluation of the predicted structures is generally indispensable. Although several methods have been proposed to assess RNA 3D structures, the existing methods are not precise enough. In this work, a new all-atom knowledge-based potential is developed for more accurately evaluating RNA 3D structures. The potential not only includes local and nonlocal interactions but also fully considers the specificity of each RNA by introducing a retraining mechanism. Based on extensive test sets generated from independent methods, the proposed potential correctly distinguished the native state and ranked near-native conformations to effectively select the best. Furthermore, the proposed potential precisely captured RNA structural features such as base-stacking and base-pairing. Comparisons with existing potential methods show that the proposed potential is very reliable and accurate in RNA 3D structure evaluation. Project supported by the National Science Foundation of China (Grants Nos. 11605125, 11105054, 11274124, and 11401448).

  6. Large-scale image region documentation for fully automated image biomarker algorithm development and evaluation

    PubMed Central

    Reeves, Anthony P.; Xie, Yiting; Liu, Shuang

    2017-01-01

    Abstract. With the advent of fully automated image analysis and modern machine learning methods, there is a need for very large image datasets having documented segmentations for both computer algorithm training and evaluation. This paper presents a method and implementation for facilitating such datasets that addresses the critical issue of size scaling for algorithm validation and evaluation; current evaluation methods that are usually used in academic studies do not scale to large datasets. This method includes protocols for the documentation of many regions in very large image datasets; the documentation may be incrementally updated by new image data and by improved algorithm outcomes. This method has been used for 5 years in the context of chest health biomarkers from low-dose chest CT images that are now being used with increasing frequency in lung cancer screening practice. The lung scans are segmented into over 100 different anatomical regions, and the method has been applied to a dataset of over 20,000 chest CT images. Using this framework, the computer algorithms have been developed to achieve over 90% acceptable image segmentation on the complete dataset. PMID:28612037

  7. Integrating Human Factors into Crew Exploration Vehicle Design

    NASA Technical Reports Server (NTRS)

    Whitmore, Mihriban; Baggerman, Susan; Campbell, paul

    2007-01-01

    With NASA's new Vision for Exploration to send humans beyond Earth orbit, it is critical to consider the human as a system that demands early and continuous user involvement, and an iterative prototype/test/redesign process. Addressing human-system interface issues early on can be very cost effective even cost reducing when performed early in the design and development cycle. To achieve this goal within Crew Exploration Vehicle (CEV) Project Office, human engineering (HE) team is formed. Key tasks are to apply HE requirements and guidelines to hardware/software, and provide HE design, analysis and evaluation of crew interfaces. Initial activities included many practice-orientated evaluations using low-fidelity CEV mock-ups. What follows is a description of such evaluations that focused on a HE requirement regarding Net Habitable Volume (NHV). NHV is defined as the total remaining pressurized volume available to on-orbit crew after accounting for the loss of volume due to deployed hardware and structural inefficiencies which decrease functional volume. The goal of the NHV evaluations was to develop requirements providing sufficient CEV NHV for crewmembers to live and perform tasks in support of mission goals. Efforts included development of a standard NHV calculation method using computer models and physical mockups, and crew/ stakeholder evaluations. Nine stakeholders and ten crewmembers participated in the unsuited evaluations. Six crewmembers also participated in a suited evaluation. The mock-up was outfitted with volumetric representation of sub-systems such as seats, and stowage bags. Thirteen scenarios were developed to represent mission/crew tasks and considered to be primary volume drivers (e.g., suit donning) for the CEV. Unsuited evaluations included a structured walkthrough of these tasks. Suited evaluations included timed donning of the existing launch and entry suit to simulate a contingency scenario followed by doffing/ stowing of the suits. All mockup evaluations were videotaped. Structured questionnaires were used to document user interface issues and volume impacts of layout configuration. Computer model and physical measures of the NHV agreed within 1 percent. This included measurement of the gross habitable volume, subtraction of intrusive volumes, and other non-habitable spaces. Calculation method developed was validated as a standard means of measuring NHV, and was recommended as a verification method for the NHV requirements. Evaluations confirmed that there was adequate volume for unsuited scenarios and suit donning/ doffing activity. Seats, suit design stowage and waste hygiene system noted to be critical volume drivers. The low-fidelity mock-up evaluations along with human modeling analysis generated discussions that will lead to high-level systems requirements and human-centered design decisions. This approach allowed HE requirements and operational concepts to evolve in parallel with engineering system concepts and design requirements. As the CEV design matures, these evaluations will continue and help with design decisions, and assessment, verification and validation of HE requirements.

  8. Issues in the Assessment of Social Phobia: A Review

    PubMed Central

    Letamendi, Andrea M.; Chavira, Denise A.; Stein, Murray B.

    2010-01-01

    Since the emergence of social phobia in DSM nomenclature, the mental health community has witnessed an expansion in standardized methods for the screening, diagnosis, and measurement of the disorder. This article reviews formal assessment methods for social phobia, including diagnostic interview, clinician-administered instruments, and self report questionnaires. Frequently used tools for assessing constructs related to social phobia, such as disability and quality of life, are also briefly presented. This review evaluates each method by highlighting the assessment features recommended in social phobia literature, including method of administration, item content, coverage, length of scale, type of scores generated, and time frame. PMID:19728569

  9. Comparison and evaluation of fusion methods used for GF-2 satellite image in coastal mangrove area

    NASA Astrophysics Data System (ADS)

    Ling, Chengxing; Ju, Hongbo; Liu, Hua; Zhang, Huaiqing; Sun, Hua

    2018-04-01

    GF-2 satellite is the highest spatial resolution Remote Sensing Satellite of the development history of China's satellite. In this study, three traditional fusion methods including Brovey, Gram-Schmidt and Color Normalized (CN were used to compare with the other new fusion method NNDiffuse, which used the qualitative assessment and quantitative fusion quality index, including information entropy, variance, mean gradient, deviation index, spectral correlation coefficient. Analysis results show that NNDiffuse method presented the optimum in qualitative and quantitative analysis. It had more effective for the follow up of remote sensing information extraction and forest, wetland resources monitoring applications.

  10. [Simple and useful evaluation of motor difficulty in childhood (9-12 years old children ) by interview score on motor skills and soft neurological signs--aim for the diagnosis of developmental coordination disorder].

    PubMed

    Kashiwagi, Mitsuru; Suzuki, Shuhei

    2009-09-01

    Many children with developmental disorders are known to have motor impairment such as clumsiness and poor physical ability;however, the objective evaluation of such difficulties is not easy in routine clinical practice. In this study, we aimed to establish a simple method for evaluating motor difficulty of childhood. This method employs a scored interview and examination for detecting soft neurological signs (SNSs). After a preliminary survey with 22 normal children, we set the items and the cutoffs for the interview and SNSs. The interview consisted of questions pertaining to 12 items related to a child's motor skills in his/her past and current life, such as skipping, jumping a rope, ball sports, origami, and using chopsticks. The SNS evaluation included 5 tests, namely, standing on one leg with eyes closed, diadochokinesia, associated movements during diadochokinesia, finger opposition test, and laterally fixed gaze. We applied this method to 43 children, including 25 cases of developmental disorders. Children showing significantly high scores in both the interview and SNS were assigned to the "with motor difficulty" group, while those with low scores in both the tests were assigned to the "without motor difficulty" group. The remaining children were assigned to the "with suspicious motor difficulty" group. More than 90% of the children in the "with motor difficulty" group had high impairment scores in Movement Assessment Battery for Children (M-ABC), a standardized motor test, whereas 82% of the children in the "without motor difficulty" group revealed no motor impairment. Thus, we conclude that our simple method and criteria would be useful for the evaluation of motor difficulty of childhood. Further, we have discussed the diagnostic process for developmental coordination disorder using our evaluation method.

  11. Measurement properties of existing clinical assessment methods evaluating scapular positioning and function. A systematic review.

    PubMed

    Larsen, Camilla Marie; Juul-Kristensen, Birgit; Lund, Hans; Søgaard, Karen

    2014-10-01

    The aims were to compile a schematic overview of clinical scapular assessment methods and critically appraise the methodological quality of the involved studies. A systematic, computer-assisted literature search using Medline, CINAHL, SportDiscus and EMBASE was performed from inception to October 2013. Reference lists in articles were also screened for publications. From 50 articles, 54 method names were identified and categorized into three groups: (1) Static positioning assessment (n = 19); (2) Semi-dynamic (n = 13); and (3) Dynamic functional assessment (n = 22). Fifteen studies were excluded for evaluation due to no/few clinimetric results, leaving 35 studies for evaluation. Graded according to the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN checklist), the methodological quality in the reliability and validity domains was "fair" (57%) to "poor" (43%), with only one study rated as "good". The reliability domain was most often investigated. Few of the assessment methods in the included studies that had "fair" or "good" measurement property ratings demonstrated acceptable results for both reliability and validity. We found a substantially larger number of clinical scapular assessment methods than previously reported. Using the COSMIN checklist the methodological quality of the included measurement properties in the reliability and validity domains were in general "fair" to "poor". None were examined for all three domains: (1) reliability; (2) validity; and (3) responsiveness. Observational evaluation systems and assessment of scapular upward rotation seem suitably evidence-based for clinical use. Future studies should test and improve the clinimetric properties, and especially diagnostic accuracy and responsiveness, to increase utility for clinical practice.

  12. A novel evaluation method for building construction project based on integrated information entropy with reliability theory.

    PubMed

    Bai, Xiao-ping; Zhang, Xi-wei

    2013-01-01

    Selecting construction schemes of the building engineering project is a complex multiobjective optimization decision process, in which many indexes need to be selected to find the optimum scheme. Aiming at this problem, this paper selects cost, progress, quality, and safety as the four first-order evaluation indexes, uses the quantitative method for the cost index, uses integrated qualitative and quantitative methodologies for progress, quality, and safety indexes, and integrates engineering economics, reliability theories, and information entropy theory to present a new evaluation method for building construction project. Combined with a practical case, this paper also presents detailed computing processes and steps, including selecting all order indexes, establishing the index matrix, computing score values of all order indexes, computing the synthesis score, sorting all selected schemes, and making analysis and decision. Presented method can offer valuable references for risk computing of building construction projects.

  13. Steady and Oscillatory, Subsonic and Supersonic, Aerodynamic Pressure and Generalized Forces for Complex Aircraft Configurations and Applications to Flutter. M.S. Thesis

    NASA Technical Reports Server (NTRS)

    Chen, L. T.

    1975-01-01

    A general method for analyzing aerodynamic flows around complex configurations is presented. By applying the Green function method, a linear integral equation relating the unknown, small perturbation potential on the surface of the body, to the known downwash is obtained. The surfaces of the aircraft, wake and diaphragm (if necessary) are divided into small quadrilateral elements which are approximated with hyperboloidal surfaces. The potential and its normal derivative are assumed to be constant within each element. This yields a set of linear algebraic equations and the coefficients are evaluated analytically. By using Gaussian elimination method, equations are solved for the potentials at the centroids of elements. The pressure coefficient is evaluated by the finite different method; the lift and moment coefficients are evaluated by numerical integration. Numerical results are presented, and applications to flutter are also included.

  14. Compositions, antibodies, asthma diagnosis methods, and methods for preparing antibodies

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Jin, Hongjun; Zangar, Richard C.

    Methods for preparing an antibody are provided with the method including incorporating 3-bromo-4-hydroxy-benzoic acid into a protein to form an antigen, immunizing a mammalian host with the antigen, and recovering an antibody having an affinity for the antigen from the host. Antibodies having a binding affinity for a monohalotyrosine are provided as well as composition comprising an antibody bound with monohalotyrosine. Compositions comprising a protein having a 3-bromo-4-hydroxy-benzoic acid moiety are also provided. Methods for evaluating the severity of asthma are provide with the methods including analyzing sputum of a patient using an antibody having a binding affinity for monohalotyrosine,more » and measuring the amount of antibody bound to protein. Methods for determining eosinophil activity in bodily fluid are also provided with the methods including exposing bodily fluid to an antibody having a binding affinity for monohalotyrosine, and measuring the amount of bound antibody to determine the eosinophil activity.« less

  15. Development and evaluation of a culture-independent method for source determination of fecal wastes in surface and storm waters using reverse transcriptase-PCR detection of FRNA coliphage genogroup gene sequences.

    PubMed

    Paar, Jack; Doolittle, Mark M; Varma, Manju; Siefring, Shawn; Oshima, Kevin; Haugland, Richard A

    2015-05-01

    A method, incorporating recently improved reverse transcriptase-PCR primer/probe assays and including controls for detecting interferences in RNA recovery and analysis, was developed for the direct, culture-independent detection of genetic markers from FRNA coliphage genogroups I, II & IV in water samples. Results were obtained from an initial evaluation of the performance of this method in analyses of waste water, ambient surface water and stormwater drain and outfall samples from predominantly urban locations. The evaluation also included a comparison of the occurrence of the FRNA genetic markers with genetic markers from general and human-related bacterial fecal indicators determined by current or pending EPA-validated qPCR methods. Strong associations were observed between the occurrence of the putatively human related FRNA genogroup II marker and the densities of the bacterial markers in the stormwater drain and outfall samples. However fewer samples were positive for FRNA coliphage compared to either the general bacterial fecal indicator or the human-related bacterial fecal indicator markers particularly for ambient water samples. Together, these methods show promise as complementary tools for the identification of contaminated storm water drainage systems as well as the determination of human and non-human sources of contamination. Published by Elsevier B.V.

  16. Curriculum renewal in child psychiatry.

    PubMed

    Hanson, M; Tiberius, R; Charach, A; Ulzen, T; Sackin, D; Jain, U; Reiter, S; Shomair, G

    1999-11-01

    To ensure uniform design and evaluation of a clerkship curriculum for child and adolescent psychiatry teaching common disorders and problems in an efficient manner across 5 teaching sites and to include structures for continuous improvement. The curriculum committee selected for course inclusion disorders and problems of child psychiatry that were commonly encountered by primary care physicians. Instruction methods that encouraged active student learning were selected. Course coordination across sites was encouraged by several methods: involving faculty, adopting a centralized examination format, and aligning teaching methods with examination format. Quantitative and qualitative methods were used to measure students' perceptions of the course's value. These evaluative results were reviewed, and course modifications were implemented and reevaluated. The average adjusted student return rate for course evaluation questionnaires for the 3-year study period was 63%. Clerks' ratings of course learning value demonstrated that the course improved significantly and continually across all sites, according to a Scheffé post-hoc analysis. Analysis of student statements from focus-group transcripts contributed to course modifications, such as the Brief Focused Interview (BFI). Our curriculum in child psychiatry, which focused on common problems and used active learning methods, was viewed as a valuable learning experience by clinical clerks. Curriculum coordination across multiple teaching sites was accomplished by including faculty in the process and by using specific teaching and examination strategies. Structures for continuous course improvement were effective.

  17. Evaluation of the Bitterness of Traditional Chinese Medicines using an E-Tongue Coupled with a Robust Partial Least Squares Regression Method.

    PubMed

    Lin, Zhaozhou; Zhang, Qiao; Liu, Ruixin; Gao, Xiaojie; Zhang, Lu; Kang, Bingya; Shi, Junhan; Wu, Zidan; Gui, Xinjing; Li, Xuelin

    2016-01-25

    To accurately, safely, and efficiently evaluate the bitterness of Traditional Chinese Medicines (TCMs), a robust predictor was developed using robust partial least squares (RPLS) regression method based on data obtained from an electronic tongue (e-tongue) system. The data quality was verified by the Grubb's test. Moreover, potential outliers were detected based on both the standardized residual and score distance calculated for each sample. The performance of RPLS on the dataset before and after outlier detection was compared to other state-of-the-art methods including multivariate linear regression, least squares support vector machine, and the plain partial least squares regression. Both R² and root-mean-squares error (RMSE) of cross-validation (CV) were recorded for each model. With four latent variables, a robust RMSECV value of 0.3916 with bitterness values ranging from 0.63 to 4.78 were obtained for the RPLS model that was constructed based on the dataset including outliers. Meanwhile, the RMSECV, which was calculated using the models constructed by other methods, was larger than that of the RPLS model. After six outliers were excluded, the performance of all benchmark methods markedly improved, but the difference between the RPLS model constructed before and after outlier exclusion was negligible. In conclusion, the bitterness of TCM decoctions can be accurately evaluated with the RPLS model constructed using e-tongue data.

  18. Flight-Test Evaluation of Flutter-Prediction Methods

    NASA Technical Reports Server (NTRS)

    Lind, RIck; Brenner, Marty

    2003-01-01

    The flight-test community routinely spends considerable time and money to determine a range of flight conditions, called a flight envelope, within which an aircraft is safe to fly. The cost of determining a flight envelope could be greatly reduced if there were a method of safely and accurately predicting the speed associated with the onset of an instability called flutter. Several methods have been developed with the goal of predicting flutter speeds to improve the efficiency of flight testing. These methods include (1) data-based methods, in which one relies entirely on information obtained from the flight tests and (2) model-based approaches, in which one relies on a combination of flight data and theoretical models. The data-driven methods include one based on extrapolation of damping trends, one that involves an envelope function, one that involves the Zimmerman-Weissenburger flutter margin, and one that involves a discrete-time auto-regressive model. An example of a model-based approach is that of the flutterometer. These methods have all been shown to be theoretically valid and have been demonstrated on simple test cases; however, until now, they have not been thoroughly evaluated in flight tests. An experimental apparatus called the Aerostructures Test Wing (ATW) was developed to test these prediction methods.

  19. A study of the stress wave factor technique for nondestructive evaluation of composite materials

    NASA Technical Reports Server (NTRS)

    Sarrafzadeh-Khoee, A.; Kiernan, M. T.; Duke, J. C., Jr.; Henneke, E. G., II

    1986-01-01

    The acousto-ultrasonic method of nondestructive evaluation is an extremely sensitive means of assessing material response. Efforts continue to complete the understanding of this method. In order to achieve the full sensitivity of the technique, extreme care must be taken in its performance. This report provides an update of the efforts to advance the understanding of this method and to increase its application to the nondestructive evaluation of composite materials. Included are descriptions of a novel optical system that is capable of measuring in-plane and out-of-plane displacements, an IBM PC-based data acquisition system, an extensive data analysis software package, the azimuthal variation of acousto-ultrasonic behavior in graphite/epoxy laminates, and preliminary examination of processing variation in graphite-aluminum tubes.

  20. Interlaboratory validation of an improved U.S. Food and Drug Administration method for detection of Cyclospora cayetanensis in produce using TaqMan real-time PCR

    USDA-ARS?s Scientific Manuscript database

    A collaborative validation study was performed to evaluate the performance of a new U.S. Food and Drug Administration method developed for detection of the protozoan parasite, Cyclospora cayetanensis, on cilantro and raspberries. The method includes a sample preparation step in which oocysts are re...

  1. Applying Research Methods to a Gerontological Population: Matching Data Collection to Characteristics of Older Persons

    ERIC Educational Resources Information Center

    Weil, Joyce

    2015-01-01

    As Baby Boomers reach 65 years of age and methods of studying older populations are becoming increasingly varied (e.g., including mixed methods designs, on-line surveys, and video-based environments), there is renewed interest in evaluating methodologies used to collect data with older persons. The goal of this article is to examine…

  2. Multi-energy Coordinated Evaluation for Energy Internet

    NASA Astrophysics Data System (ADS)

    Jia, Dongqiang; Sun, Jian; Wang, Cunping; Hong, Xiao; Ma, Xiufan; Xiong, Wenting; Shen, Yaqi

    2017-05-01

    This paper reviews the current research status of multi-energy coordinated evaluation for energy Internet. Taking the coordinated optimization effect of wind energy, solar energy and other energy sources into consideration, 17 evaluation indexes, such as the substitution coefficient of cold heat and power, the ratio of wind and solar energy, and the rate of energy storage ratio, were designed from five aspects, including the acceptance of renewable energy, energy complementary alternative benefits, peak valley difference, the degree of equipment utilization and user needs. At the same time, this article attaches importance to the economic and social benefits of the coordination of multiple energy sources. Ultimately, a comprehensive multi-energy coordination evaluation index system of regional energy Internet was put forward from the safe operation, coordination and optimization, economic and social benefits four aspects, and a comprehensive evaluation model was established. This model uses the optimal combination weighting method based on moment estimation and Topsis evaluation analysis method, so both the subjective and objective weight of the index are considered and the coordinate evaluation of multi-energy is realized. Finally the perfection of the index system and the validity of the evaluation method are verified by a case analysis.

  3. Quantification of Training and Competition Loads in Endurance Sports: Methods and Applications.

    PubMed

    Mujika, Iñigo

    2017-04-01

    Training quantification is basic to evaluate an endurance athlete's responses to training loads, ensure adequate stress/recovery balance, and determine the relationship between training and performance. Quantifying both external and internal workload is important, because external workload does not measure the biological stress imposed by the exercise sessions. Generally used quantification methods include retrospective questionnaires, diaries, direct observation, and physiological monitoring, often based on the measurement of oxygen uptake, heart rate, and blood lactate concentration. Other methods in use in endurance sports include speed measurement and the measurement of power output, made possible by recent technological advances such as power meters in cycling and triathlon. Among subjective methods of quantification, rating of perceived exertion stands out because of its wide use. Concurrent assessments of the various quantification methods allow researchers and practitioners to evaluate stress/recovery balance, adjust individual training programs, and determine the relationships between external load, internal load, and athletes' performance. This brief review summarizes the most relevant external- and internal-workload-quantification methods in endurance sports and provides practical examples of their implementation to adjust the training programs of elite athletes in accordance with their individualized stress/recovery balance.

  4. Evaluation Apprehension and Impression Management in Clinical Medical Education.

    PubMed

    McGaghie, William C

    2018-05-01

    Historically, clinical medical education has relied on subjective evaluations of students and residents to judge their clinical competence. The uncertainty associated with these subjective clinical evaluations has produced evaluation apprehension among learners and attempts to manage one's professional persona (impression management) among peers and supervisors. Such behavior has been documented from antiquity through the Middle Ages to the present, including in two new qualitative studies in this issue of Academic Medicine on the social psychology of clinical medical education. New approaches to medical education, including competency-based education, mastery learning, and assessment methods that unite evaluation and education, are slowly changing the culture of clinical medical education. The author of this Invited Commentary argues that this shift will bring greater transparency and accountability to clinical medical education and gradually reduce evaluation apprehension and the impression management motives it produces.

  5. Development of an external ceramic insulation for the space shuttle orbiter. Part 2: Optimization

    NASA Technical Reports Server (NTRS)

    Tanzilli, R. A. (Editor)

    1973-01-01

    The basic insulation improvement study concentrated upon evaluating variables which could result in significant near-term gains in mechanical behavior and insulation effectiveness of the baseline system. The approaches undertaken included: evaluation of small diameter fibers, optimization of binder: slurry characteristics, evaluation of techniques for controlling fiber orientation, optimization of firing cycle, and the evaluation of methods for improving insulation efficiency. A detailed discussion of these basic insulation improvement studies is presented.

  6. Utilizing formative evaluation to enhance the understanding of chemistry and the methods and procedures of science

    NASA Astrophysics Data System (ADS)

    Pizzini, Edward L.; Treagust, David F.; Cody, John

    The purpose of this study was to determine whether or not formative evaluation could facilitate goal attainment in a biochemistry course and produce desired learning outcomes consistently by altering course materials and/or instruction. Formative evaluation procedures included the administration of the Inorganic-Organic-Biological Chemistry Test Form 1974 and the Methods and Procedures of Science test to course participants over three consecutive years. A one group pretest-post-test design was used. The statistical analysis involved the use of the Wilcoxon matched-pairs signed-ranks test. The study involved 64 participants. The findings indicate that the use of formative evaluation can be effective in producing desired learning outcomes to facilitate goal attainment.

  7. Enhancing health students' understanding of generic research concepts using a web-based video resource.

    PubMed

    Callaghan, Lynne; Lea, Susan J; Mutton, Lauren; Whittlesea, Emma

    2011-11-01

    This paper presents the development and evaluation of a set of innovative video resources aimed at enhancing health students' understanding and learning of generic research concepts. It is vital that health students achieve a solid foundation in research methods in order to support and inform evidence-based practice. Research concepts were identified through a stakeholder consultation with research methods teaching staff from a variety of health professions. Research concepts and processes included reliability, validity, statistical significance, descriptive statistics, qualitative and quantitative methods, sampling and population, research ethics and searching for and evaluating literature. Videos were produced, informed by a 3-component model, including: first, animated slides of concept definition, second, acted analogical scenarios of concepts and third, interviews with staff regarding the application of the concepts in their own research. Workshop-style focus groups were conducted with 27 students from midwifery, paramedicine and physiotherapy degree programmes. Overall, students perceived the resources as demystifying the topic of research methods through the clarification of definition and application of concepts and making sense of concepts through the analogical videos. Students evaluated the resources extremely positively in comparison with books and lectures and believed that the combination of audio and visual media benefited their learning. Copyright © 2011 Elsevier Ltd. All rights reserved.

  8. Evaluating Downscaling Methods for Seasonal Climate Forecasts over East Africa

    NASA Technical Reports Server (NTRS)

    Roberts, J. Brent; Robertson, Franklin R.; Bosilovich, Michael; Lyon, Bradfield; Funk, Chris

    2013-01-01

    The U.S. National Multi-Model Ensemble seasonal forecasting system is providing hindcast and real-time data streams to be used in assessing and improving seasonal predictive capacity. The NASA / USAID SERVIR project, which leverages satellite and modeling-based resources for environmental decision making in developing nations, is focusing on the evaluation of NMME forecasts specifically for use in impact modeling within hub regions including East Africa, the Hindu Kush-Himalayan (HKH) region and Mesoamerica. One of the participating models in NMME is the NASA Goddard Earth Observing System (GEOS5). This work will present an intercomparison of downscaling methods using the GEOS5 seasonal forecasts of temperature and precipitation over East Africa. The current seasonal forecasting system provides monthly averaged forecast anomalies. These anomalies must be spatially downscaled and temporally disaggregated for use in application modeling (e.g. hydrology, agriculture). There are several available downscaling methodologies that can be implemented to accomplish this goal. Selected methods include both a non-homogenous hidden Markov model and an analogue based approach. A particular emphasis will be placed on quantifying the ability of different methods to capture the intermittency of precipitation within both the short and long rain seasons. Further, the ability to capture spatial covariances will be assessed. Both probabilistic and deterministic skill measures will be evaluated over the hindcast period

  9. Evaluating Downscaling Methods for Seasonal Climate Forecasts over East Africa

    NASA Technical Reports Server (NTRS)

    Robertson, Franklin R.; Roberts, J. Brent; Bosilovich, Michael; Lyon, Bradfield

    2013-01-01

    The U.S. National Multi-Model Ensemble seasonal forecasting system is providing hindcast and real-time data streams to be used in assessing and improving seasonal predictive capacity. The NASA / USAID SERVIR project, which leverages satellite and modeling-based resources for environmental decision making in developing nations, is focusing on the evaluation of NMME forecasts specifically for use in impact modeling within hub regions including East Africa, the Hindu Kush-Himalayan (HKH) region and Mesoamerica. One of the participating models in NMME is the NASA Goddard Earth Observing System (GEOS5). This work will present an intercomparison of downscaling methods using the GEOS5 seasonal forecasts of temperature and precipitation over East Africa. The current seasonal forecasting system provides monthly averaged forecast anomalies. These anomalies must be spatially downscaled and temporally disaggregated for use in application modeling (e.g. hydrology, agriculture). There are several available downscaling methodologies that can be implemented to accomplish this goal. Selected methods include both a non-homogenous hidden Markov model and an analogue based approach. A particular emphasis will be placed on quantifying the ability of different methods to capture the intermittency of precipitation within both the short and long rain seasons. Further, the ability to capture spatial covariances will be assessed. Both probabilistic and deterministic skill measures will be evaluated over the hindcast period.

  10. Phase Transition Enthalpy Measurements of Organic and Organometallic Compounds and Ionic Liquids. Sublimation, Vaporization, and Fusion Enthalpies from 1880 to 2015. Part 2. C11-C192

    NASA Astrophysics Data System (ADS)

    Acree, William; Chickos, James S.

    2017-03-01

    The second part of this compendium concludes with a collection of phase change enthalpies of organic molecules inclusive of C11-C192 reported over the period 1880-2015. Also included are phase change enthalpies including fusion, vaporization, and sublimation enthalpies for organometallic, ionic liquids, and a few inorganic compounds. Paper I of this compendium, published separately, includes organic compounds from C1 to C10 and describes a group additivity method for evaluating solid, liquid, and gas phase heat capacities as well as temperature adjustments of phase changes. Paper II of this compendium also includes an updated version of a group additivity method for evaluating total phase change entropies which together with the fusion temperature can be useful in estimating total phase change enthalpies. Other uses include application in identifying potential substances that either form liquid or plastic crystals or exhibit additional phase changes such as undetected solid-solid transitions or behave anisotropically in the liquid state.

  11. Evaluation of Physical Information Gathering Methods for the Upper Mississippi River. Stages I and II.

    DTIC Science & Technology

    1980-05-01

    be used for certain applications include: drogues, dye , drifters, mathematical modeling, and, to some degree, remote sensing. The use of Lagrangian...type measurements, which include droques, dye , and drifters was eliminated from further consideration. These methods are generally used to follow water...ENVIRONMENTAL SCIENCES Determining water velocity in a river by remote sensing techniques is limited to the tracking of a marker (e.g. a float or dye ) over

  12. Comparison of different methods for isolation of bacterial DNA from retail oyster tissues

    USDA-ARS?s Scientific Manuscript database

    Oysters are filter-feeders that bio-accumulate bacteria in water while feeding. To evaluate the bacterial genomic DNA extracted from retail oyster tissues, including the gills and digestive glands, four isolation methods were used. Genomic DNA extraction was performed using the Allmag™ Blood Genomic...

  13. Interactive Video Usage on Autism Spectrum Disorder Training in Medical Education

    ERIC Educational Resources Information Center

    Taslibeyaz, Elif; Dursun, Onur Burak; Karaman, Selcuk

    2017-01-01

    This study aimed to compare the effects of interactive and non-interactive videos concerning the autism spectrum disorder on medical students' achievement. It also evaluated the relation between the interactive videos' interactivity and the students' decision-making process. It used multiple methods, including quantitative and qualitative methods.…

  14. Behavioral Changes Based on a Course in Agroecology: A Mixed Methods Study

    ERIC Educational Resources Information Center

    Harms, Kristyn; King, James; Francis, Charles

    2009-01-01

    This study evaluated and described student perceptions of a course in agroecology to determine if participants experienced changed perceptions and behaviors resulting from the Agroecosystems Analysis course. A triangulation validating quantitative data mixed methods approach included a written survey comprised of both quantitative and open-ended…

  15. Comparison of multiple gene assembly methods for metabolic engineering

    Treesearch

    Chenfeng Lu; Karen Mansoorabadi; Thomas Jeffries

    2007-01-01

    A universal, rapid DNA assembly method for efficient multigene plasmid construction is important for biological research and for optimizing gene expression in industrial microbes. Three different approaches to achieve this goal were evaluated. These included creating long complementary extensions using a uracil-DNA glycosylase technique, overlap extension polymerase...

  16. Multi-Method Assessment of Feeding Problems among Children with Autism Spectrum Disorders

    ERIC Educational Resources Information Center

    Sharp, William G.; Jaquess, David L.; Lukens, Colleen T.

    2013-01-01

    Estimates suggest that atypical eating is pervasive among children with autism spectrum disorders (ASD); however, much remains unknown regarding the nature and prevalence of feeding problems in this population due to methodological limitations, including lack of adequate assessment methods and empirical evaluation of existing measures. In the…

  17. Determination of levels of polychlorinated biphenyls (PCBs) present in caulk and window glazing material samples from older buildings

    EPA Science Inventory

    Levels of polychlorinated biphenyls (PCBs) in caulk and window glazing material samples from older buildings were determined, using a method developed for this purpose. This method was evaluated by analyzing a combination of 47 samples of caulk, glazing materials, including quali...

  18. First Language Composition Pedagogy in the Second Language Classroom: A Reassesment.

    ERIC Educational Resources Information Center

    Ross, Steven; And Others

    1988-01-01

    Evaluated the effectiveness of using native language (Japanese) based writing methods in English as a second language (ESL) classrooms. The methods compared included sentence combining and structural grammar instruction with journal writing, controlled composition writing with feedback on surface error, and peer reformulation. Journal writing, but…

  19. Easing Your Pain: A Method for Evaluating Research Writing from Students

    ERIC Educational Resources Information Center

    Jensen, Barbara E.; Martin, Kathleen A.; Mann, Betty L.; Fogarty, Tracey

    2004-01-01

    Throughout their undergraduate and graduate careers, students are assigned various types of papers that require scientific writing style. The scope of these assignments include laboratory reports that require only graphing and statements of findings; abstract assignments with critical summaries included; abbreviated research papers, including…

  20. The Hidden Dimensions of Databases.

    ERIC Educational Resources Information Center

    Jacso, Peter

    1994-01-01

    Discusses methods of evaluating commercial online databases and provides examples that illustrate their hidden dimensions. Topics addressed include size, including the number of records or the number of titles; the number of years covered; and the frequency of updates. Comparisons of Readers' Guide Abstracts and Magazine Article Summaries are…

  1. Evaluation of tissue fixation methods to inactivate Mycobacterium bovis under routine laboratory conditions

    USDA-ARS?s Scientific Manuscript database

    Mycobacterium bovis (M. bovis) is the etiological agent of tuberculosis in mammals including humans. The seriousness of disease and low infective dose require that the agent be handled under biosafety level 3 conditions. Many experimental protocols include histological examination of infected tissue...

  2. Meta-analysis of haplotype-association studies: comparison of methods and empirical evaluation of the literature

    PubMed Central

    2011-01-01

    Background Meta-analysis is a popular methodology in several fields of medical research, including genetic association studies. However, the methods used for meta-analysis of association studies that report haplotypes have not been studied in detail. In this work, methods for performing meta-analysis of haplotype association studies are summarized, compared and presented in a unified framework along with an empirical evaluation of the literature. Results We present multivariate methods that use summary-based data as well as methods that use binary and count data in a generalized linear mixed model framework (logistic regression, multinomial regression and Poisson regression). The methods presented here avoid the inflation of the type I error rate that could be the result of the traditional approach of comparing a haplotype against the remaining ones, whereas, they can be fitted using standard software. Moreover, formal global tests are presented for assessing the statistical significance of the overall association. Although the methods presented here assume that the haplotypes are directly observed, they can be easily extended to allow for such an uncertainty by weighting the haplotypes by their probability. Conclusions An empirical evaluation of the published literature and a comparison against the meta-analyses that use single nucleotide polymorphisms, suggests that the studies reporting meta-analysis of haplotypes contain approximately half of the included studies and produce significant results twice more often. We show that this excess of statistically significant results, stems from the sub-optimal method of analysis used and, in approximately half of the cases, the statistical significance is refuted if the data are properly re-analyzed. Illustrative examples of code are given in Stata and it is anticipated that the methods developed in this work will be widely applied in the meta-analysis of haplotype association studies. PMID:21247440

  3. Evaluation of PDA Technical Report No 33. Statistical Testing Recommendations for a Rapid Microbiological Method Case Study.

    PubMed

    Murphy, Thomas; Schwedock, Julie; Nguyen, Kham; Mills, Anna; Jones, David

    2015-01-01

    New recommendations for the validation of rapid microbiological methods have been included in the revised Technical Report 33 release from the PDA. The changes include a more comprehensive review of the statistical methods to be used to analyze data obtained during validation. This case study applies those statistical methods to accuracy, precision, ruggedness, and equivalence data obtained using a rapid microbiological methods system being evaluated for water bioburden testing. Results presented demonstrate that the statistical methods described in the PDA Technical Report 33 chapter can all be successfully applied to the rapid microbiological method data sets and gave the same interpretation for equivalence to the standard method. The rapid microbiological method was in general able to pass the requirements of PDA Technical Report 33, though the study shows that there can be occasional outlying results and that caution should be used when applying statistical methods to low average colony-forming unit values. Prior to use in a quality-controlled environment, any new method or technology has to be shown to work as designed by the manufacturer for the purpose required. For new rapid microbiological methods that detect and enumerate contaminating microorganisms, additional recommendations have been provided in the revised PDA Technical Report No. 33. The changes include a more comprehensive review of the statistical methods to be used to analyze data obtained during validation. This paper applies those statistical methods to analyze accuracy, precision, ruggedness, and equivalence data obtained using a rapid microbiological method system being validated for water bioburden testing. The case study demonstrates that the statistical methods described in the PDA Technical Report No. 33 chapter can be successfully applied to rapid microbiological method data sets and give the same comparability results for similarity or difference as the standard method. © PDA, Inc. 2015.

  4. A Framework for Including Family Health Spillovers in Economic Evaluation

    PubMed Central

    Al-Janabi, Hareth; van Exel, Job; Brouwer, Werner; Coast, Joanna

    2016-01-01

    Health care interventions may affect the health of patients’ family networks. It has been suggested that these “health spillovers” should be included in economic evaluation, but there is not a systematic method for doing this. In this article, we develop a framework for including health spillovers in economic evaluation. We focus on extra-welfarist economic evaluations where the objective is to maximize health benefits from a health care budget (the “health care perspective”). Our framework involves adapting the conventional cost-effectiveness decision rule to include 2 multiplier effects to internalize the spillover effects. These multiplier effects express the ratio of total health effects (for patients and their family networks) to patient health effects. One multiplier effect is specified for health benefit generated from providing a new intervention, one for health benefit displaced by funding this intervention. We show that using multiplier effects to internalize health spillovers could change the optimal funding decisions and generate additional health benefits to society. PMID:26377370

  5. Expert opinions on the acceptance of alternative methods in food safety evaluations: Formulating recommendations to increase acceptance of non-animal methods for kinetics.

    PubMed

    Punt, Ans; Bouwmeester, Hans; Schiffelers, Marie-Jeanne W A; Peijnenburg, Ad A C M

    2018-02-01

    Inclusion of alternative methods that replace, reduce, or refine (3R) animal testing within regulatory safety evaluations of chemicals generally faces many hurdles. The goal of the current work is to i) collect responses from key stakeholders involved in food safety evaluations on what they consider the most relevant factors that influence the acceptance and use of 3R methods and to ii) use these responses to formulate activities needed to increase the acceptance and use of 3R methods, particularly for kinetics. The stakeholders were contacted by e-mail for their opinions, asking the respondents to write down three barriers and/or drivers and scoring these by distributing 5 points over the three factors. The main barriers that obtained the highest aggregated scores were i) uncertain predictability 3R methods/lack of validation, ii) insufficient guidance regulators/industry and iii) insufficient harmonization of legislation. The major driver identified was the possibility of 3R methods to provide more mechanistic information. Based on the results, recommendations are given to enhance the acceptance and application of 3R toxicokinetic methods in food safety evaluations. These include steering of regulatory data requirements as well as creating (funding) opportunities for development and validation of alternative methods for kinetics and development of guidances. Copyright © 2017 The Authors. Published by Elsevier Inc. All rights reserved.

  6. Clinical results of resection arthrodesis by triangular external fixation for posttraumatic arthrosis of the ankle joint in 89 cases

    PubMed Central

    2009-01-01

    The methods for ankle arthrodesis differ significantly, probably a sign that no method is clearly superior to others. In the last ten years there is a clear favour toward internal fixation. We retrospectively evaluate the technique and evaluate the clinical long term results of external fixation in a triangular frame. Patients and Methods From 1994 to 2001 a consecutive series of 95 patients with end stage arthritis of the ankle joint were treated. Retrospectively the case notes were evaluated regarding trauma history, medical complaints, further injuries and illnesses, walking and pain status and occupational issues and the clinical examination before arthrodesis. Mean age at the index procedure was 45.4 years (18-82), 67 patients were male (70.5%). Via a bilateral approach the malleoli and the joint surfaces were resected. An AO fixator was applied with two Steinmann-nails inserted with approximately 8 cm distance in the distal tibia, one in the neck of the talus and one in the dorsal calcaneus. The fixator was removed after approximately 12 weeks. Follow up examination at mean 4.4 years included a standardised questionnaire and a clinical examination including the criteria of the AOFAS-Score and radiographs. Results: Due to different complications, 8 (8.9%) further surgical procedures were necessary including 1 below knee amputation. In 4 patients a non-union of the ankle arthrodesis developed (4.5%). The mean AOFAS score improved from 20.8 to 69.3 points. Conclusion Non-union rates and clinical results of arthrodesis by triangular external fixation of the ankle joint do not differ to internal fixation methods. The complication rate and the reduced patient comfort reserve this method mainly for infected arthritis and complicated soft tissue situations. PMID:19258207

  7. Evaluating different planting stocks for oak regeneration on Hurricane Katrina disturbed lands

    Treesearch

    Damon B. Hollis; Andrew W. Ezell; Emily B. Schultz; John D. Hodges; Andrew B. Self; Derek K. Alkire

    2012-01-01

    Three oak planting stocks were evaluated to determine their influence on survival and initial growth. Planting stocks utilized included conventional containerized seedlings in 240 centimeter3 (cm3) containers, 1-0, bareroot seedlings, and Root Production Method (RPM™) seedlings in 11.4 liter (L) containers. Initial height, groundline diameter (...

  8. The Impact of Sound-Field Systems on Learning and Attention in Elementary School Classrooms

    ERIC Educational Resources Information Center

    Dockrell, Julie E.; Shield, Bridget

    2012-01-01

    Purpose: The authors evaluated the installation and use of sound-field systems to investigate the impact of these systems on teaching and learning in elementary school classrooms. Methods: The evaluation included acoustic surveys of classrooms, questionnaire surveys of students and teachers, and experimental testing of students with and without…

  9. Evaluating Reactions and Transfer of Skills from Blackboard Training

    ERIC Educational Resources Information Center

    Martin, Florence; Brooks, Robin Freeman; Gayford, Matthew C.; Hall, Herman A., IV; Whitfield, Kimberly Y.

    2011-01-01

    This article describes the methods that were used to evaluate the "Blackboard Basics" and "Teaching in Blackboard" courses that are currently being offered by the Office of e-Learning at a southeastern university in the United States. This report includes a description of the background of this course, the purpose of the…

  10. Cost Savings Threshold Analysis of a Capacity-Building Program for HIV Prevention Organizations

    ERIC Educational Resources Information Center

    Dauner, Kim Nichols; Oglesby, Willie H.; Richter, Donna L.; LaRose, Christopher M.; Holtgrave, David R.

    2008-01-01

    Although the incidence of HIV each year remains steady, prevention funding is increasingly competitive. Programs need to justify costs in terms of evaluation outcomes, including economic ones. Threshold analyses set performance standards to determine program effectiveness relative to that threshold. This method was used to evaluate the potential…

  11. Pilot Evaluation of a Home Visit Parent Training Program in Disadvantaged Families

    ERIC Educational Resources Information Center

    Leung, Cynthia; Tsang, Sandra; Heung, Kitty

    2013-01-01

    Objectives: The study reported the pilot evaluation of the Healthy Start Home Visit Program for disadvantaged Chinese parents with preschool children, delivered by trained parent assistants. Home visiting was used to make services more accessible to disadvantaged families. Method: The participants included 21 parent-child dyads. Outcome measures…

  12. Evaluation of an Interview Skills Training Package for Adolescents with Speech, Language and Communication Needs

    ERIC Educational Resources Information Center

    Mathrick, Rachel; Meagher, Tina; Norbury, Courtenay Frazier

    2017-01-01

    Background & Aims: We evaluated a structured intervention programme aimed at preparing adolescents with developmental language disorders for job interviews. Our primary outcome measures included change in ratings of verbal and non-verbal social communication behaviours evident during mock interviews. Methods & Procedures: In study 1, 12…

  13. Computer-Assisted, Programmed Text, and Lecture Modes of Instruction in Three Medical Training Courses: Comparative Evaluation. Final Report.

    ERIC Educational Resources Information Center

    Deignan, Gerard M.; And Others

    This report contains a comparative analysis of the differential effectiveness of computer-assisted instruction (CAI), programmed instructional text (PIT), and lecture methods of instruction in three medical courses--Medical Laboratory, Radiology, and Dental. The summative evaluation includes (1) multiple regression analyses conducted to predict…

  14. Knowledge to Action: Scholarship for Faculty and Staff

    ERIC Educational Resources Information Center

    Ratnapalan, Savithiri

    2009-01-01

    Introduction: This study was undertaken to evaluate the influence of a continuing education course in facilitating the development and implementation of educational projects of course participants. Methods: This is a case study evaluating a full-year course that consisted of 11 monthly seminars, each 4 hours in length, including practice in a…

  15. Flammability, Offgassing, and Compatibility Requirements and Test Procedures. Interim NASA Technical Standard

    NASA Technical Reports Server (NTRS)

    2009-01-01

    This Interim Standard establishes requirements for evaluation, testing, and selection of materials that are intended for use in space vehicles, associated Ground Support Equipment (GSE), and facilities used during assembly, test, and flight operations. Included are requirements, criteria, and test methods for evaluating the flammability, offgassing, and compatibility of materials.

  16. Evaluation of surface waters associated with animal feeding operations for estrogenic chemicals and activity

    USDA-ARS?s Scientific Manuscript database

    Estrogens and estrogenic activity (EA) were evaluated in surface waters associated with animal feeding operations. Water was sampled at 19 sites in 12 states using discrete (n=41) and POCIS (n=19) sampling methods. Estrogenic chemicals measured in unfiltered water by GC/MS2 included: estrone (E1),17...

  17. Ada training evaluation and recommendations from the Gamma Ray Observatory Ada Development Team

    NASA Technical Reports Server (NTRS)

    1985-01-01

    The Ada training experiences of the Gamma Ray Observatory Ada development team are related, and recommendations are made concerning future Ada training for software developers. Training methods are evaluated, deficiencies in the training program are noted, and a recommended approach, including course outline, time allocation, and reference materials, is offered.

  18. 34 CFR 636.21 - What selection criteria does the Secretary use to evaluate an application?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... of the evaluation plan for the project, including the extent to which the applicant's methods of... part: (a) Determination of need for the project. (10 points). The Secretary reviews each application to assess the effectiveness of the procedures used by the applicant in determining need for the project...

  19. The Game of Knowledge Brokering: A New Method for Increasing Evaluation Use

    ERIC Educational Resources Information Center

    Olejniczak, Karol

    2017-01-01

    Knowledge brokering is a promising practice for addressing the challenge of using research evidence, including evaluation findings, in policy implementation. For public policy practitioners, it means playing the role of an intermediary who steers the flow of knowledge between producers (researchers) and users (decision makers). It requires a set…

  20. Improved profiling of estrogen metabolites by orbitrap LC/MS

    PubMed Central

    Li, Xingnan; Franke, Adrian A.

    2015-01-01

    Estrogen metabolites are important biomarkers to evaluate cancer risks and metabolic diseases. Due to their low physiological levels, a sensitive and accurate method is required, especially for the quantitation of unconjugated forms of endogenous steroids and their metabolites in humans. Here, we evaluated various derivatives of estrogens for improved analysis by orbitrap LC/MS in human serum samples. A new chemical derivatization reagent was applied modifying phenolic steroids to form 1-methylimidazole-2-sulfonyl adducts. The method significantly improves the sensitivity 2–100 fold by full scan MS and targeted selected ion monitoring MS over other derivatization methods including, dansyl, picolinoyl, and pyridine-3-sulfonyl products. PMID:25543003

  1. Criteria, Methods and Implications. Proceedings of the International Symposium on the Evaluation of Physics Education (Helsinki, Finland, June 25-29, 1990). Research Report 96.

    ERIC Educational Resources Information Center

    Ahtee, Maija, Ed.; And Others

    The main purpose of this symposium was to find new ideas and resources for the evaluation and improvement of physics education on all levels. The papers included in this document are entitled: (1) "Quality of Physics Teaching Through Building Models and Advancing Research Skills"; (2) "Evaluation of Physics Education in Terms of Its…

  2. MEDICAL DEVICE PRICES IN ECONOMIC EVALUATIONS.

    PubMed

    Akpinar, Ilke; Jacobs, Philip; Husereau, Don

    2015-01-01

    Economic evaluations, although not formally used in purchasing decisions for medical devices in Canada, are still being conducted and published. The aim of this study was to examine the way that prices have been included in Canadian economic evaluations of medical devices. We conducted a review of the economic concepts and implications of methods used for economic evaluations of the eleven most implanted medical devices from the Canadian perspective. We found Canadian economic studies for five of the eleven medical devices and identified nineteen Canadian studies. Overall, the device costs were important components of total procedure cost, with an average ratio of 44.1 %. Observational estimates of the device costs were obtained from buyers or sellers in 13 of the 19 studies. Although most of the devices last more than 1 year, standard costing methods for capital equipment was never used. In addition, only eight studies included a sensitivity analysis for the device cost. None of the sensitivity analyses were based on actual price distributions. Economic evaluations are potentially important for policy making, but although they are being conducted, there is no standardized approach for incorporating medical device prices in economic analyses. Our review provides suggestions for improvements in how the prices are incorporated for economic evaluations of medical devices.

  3. Utility of the iPhone 4 Gyroscope Application in the Measurement of Wrist Motion.

    PubMed

    Lendner, Nuphar; Wells, Erik; Lavi, Idit; Kwok, Yan Yan; Ho, Pak-Cheong; Wollstein, Ronit

    2017-09-01

    Measurement of wrist range of motion (ROM) is important to all aspects of treatment and rehabilitation of upper extremity conditions. Recently, gyroscopes have been used to measure ROM and may be more precise than manual evaluations. The purpose of this study was to evaluate the use of the iPhone gyroscope application and compare it with use of a goniometer, specifically evaluating its accuracy and ease of use. A cross-sectional study evaluated adult Caucasian participants, with no evidence of wrist pathology. Wrist ROM measurements in 306 wrists using the 2 methods were compared. Demographic information was collected including age, sex, and occupation. Analysis included mixed models and Bland-Altman plots. Wrist motion was similar between the 2 methods. Technical difficulties were encountered with gyroscope use. Age was an independent predictor of ROM. Correct measurement of ROM is critical to guide, compare, and evaluate treatment and rehabilitation of the upper extremity. Inaccurate measurements could mislead the surgeon and harm patient adherence with therapy or surgeon instruction. An application used by the patient could improve adherence but needs to be reliable and easy to use. Evaluation is necessary before utilization of such an application. This study supports revision of the application on the iPhone to improve ease of use.

  4. Performance evaluation of infrared imaging system in field test

    NASA Astrophysics Data System (ADS)

    Wang, Chensheng; Guo, Xiaodong; Ren, Tingting; Zhang, Zhi-jie

    2014-11-01

    Infrared imaging system has been applied widely in both military and civilian fields. Since the infrared imager has various types and different parameters, for system manufacturers and customers, there is great demand for evaluating the performance of IR imaging systems with a standard tool or platform. Since the first generation IR imager was developed, the standard method to assess the performance has been the MRTD or related improved methods which are not perfect adaptable for current linear scanning imager or 2D staring imager based on FPA detector. For this problem, this paper describes an evaluation method based on the triangular orientation discrimination metric which is considered as the effective and emerging method to evaluate the synthesis performance of EO system. To realize the evaluation in field test, an experiment instrument is developed. And considering the importance of operational environment, the field test is carried in practical atmospheric environment. The test imagers include panoramic imaging system and staring imaging systems with different optics and detectors parameters (both cooled and uncooled). After showing the instrument and experiment setup, the experiment results are shown. The target range performance is analyzed and discussed. In data analysis part, the article gives the range prediction values obtained from TOD method, MRTD method and practical experiment, and shows the analysis and results discussion. The experimental results prove the effectiveness of this evaluation tool, and it can be taken as a platform to give the uniform performance prediction reference.

  5. A common evaluation framework for the African Health Initiative

    PubMed Central

    2013-01-01

    Background The African Health Initiative includes highly diverse partnerships in five countries (Ghana, Mozambique, Rwanda, Tanzania, and Zambia), each of which is working to improve population health by strengthening health systems and to evaluate the results. One aim of the Initiative is to generate cross-site learning that can inform implementation in the five partnerships during the project period and identify lessons that may be generalizable to other countries in the region. Collaborators in the Initiative developed a common evaluation framework as a basis for this cross-site learning. Methods This paper describes the components of the framework; this includes the conceptual model, core metrics to be measured in all sites, and standard guidelines for reporting on the implementation of partnership activities and contextual factors that may affect implementation, or the results it produces. We also describe the systems that have been put in place for data management, data quality assessments, and cross-site analysis of results. Results and conclusions The conceptual model for the Initiative highlights points in the causal chain between health system strengthening activities and health impact where evidence produced by the partnerships can contribute to learning. This model represents an important advance over its predecessors by including contextual factors and implementation strength as potential determinants, and explicitly including equity as a component of both outcomes and impact. Specific measurement challenges include the prospective documentation of program implementation and contextual factors. Methodological issues addressed in the development of the framework include the aggregation of data collected using different methods and the challenge of evaluating a complex set of interventions being improved over time based on continuous monitoring and intermediate results. PMID:23819778

  6. SIAM Conference on Parallel Processing for Scientific Computing, 4th, Chicago, IL, Dec. 11-13, 1989, Proceedings

    NASA Technical Reports Server (NTRS)

    Dongarra, Jack (Editor); Messina, Paul (Editor); Sorensen, Danny C. (Editor); Voigt, Robert G. (Editor)

    1990-01-01

    Attention is given to such topics as an evaluation of block algorithm variants in LAPACK and presents a large-grain parallel sparse system solver, a multiprocessor method for the solution of the generalized Eigenvalue problem on an interval, and a parallel QR algorithm for iterative subspace methods on the CM2. A discussion of numerical methods includes the topics of asynchronous numerical solutions of PDEs on parallel computers, parallel homotopy curve tracking on a hypercube, and solving Navier-Stokes equations on the Cedar Multi-Cluster system. A section on differential equations includes a discussion of a six-color procedure for the parallel solution of elliptic systems using the finite quadtree structure, data parallel algorithms for the finite element method, and domain decomposition methods in aerodynamics. Topics dealing with massively parallel computing include hypercube vs. 2-dimensional meshes and massively parallel computation of conservation laws. Performance and tools are also discussed.

  7. Methods Used in Economic Evaluations of Chronic Kidney Disease Testing — A Systematic Review

    PubMed Central

    Sutton, Andrew J.; Breheny, Katie; Deeks, Jon; Khunti, Kamlesh; Sharpe, Claire; Ottridge, Ryan S.; Stevens, Paul E.; Cockwell, Paul; Kalra, Philp A.; Lamb, Edmund J.

    2015-01-01

    Background The prevalence of chronic kidney disease (CKD) is high in general populations around the world. Targeted testing and screening for CKD are often conducted to help identify individuals that may benefit from treatment to ameliorate or prevent their disease progression. Aims This systematic review examines the methods used in economic evaluations of testing and screening in CKD, with a particular focus on whether test accuracy has been considered, and how analysis has incorporated issues that may be important to the patient, such as the impact of testing on quality of life and the costs they incur. Methods Articles that described model-based economic evaluations of patient testing interventions focused on CKD were identified through the searching of electronic databases and the hand searching of the bibliographies of the included studies. Results The initial electronic searches identified 2,671 papers of which 21 were included in the final review. Eighteen studies focused on proteinuria, three evaluated glomerular filtration rate testing and one included both tests. The full impact of inaccurate test results was frequently not considered in economic evaluations in this setting as a societal perspective was rarely adopted. The impact of false positive tests on patients in terms of the costs incurred in re-attending for repeat testing, and the anxiety associated with a positive test was almost always overlooked. In one study where the impact of a false positive test on patient quality of life was examined in sensitivity analysis, it had a significant impact on the conclusions drawn from the model. Conclusion Future economic evaluations of kidney function testing should examine testing and monitoring pathways from the perspective of patients, to ensure that issues that are important to patients, such as the possibility of inaccurate test results, are properly considered in the analysis. PMID:26465773

  8. [Research Progress and Prospect of Applications of Finite Element Method in Lumbar Spine Biomechanics].

    PubMed

    Zhang, Zhenjun; Li, Yang; Liao, Zhenhua; Liu, Weiqiang

    2016-12-01

    Based on the application of finite element analysis in spine biomechanics,the research progress of finite element method applied in lumbar spine mechanics is reviewed and the prospect is forecasted.The related works,including lumbar ontology modeling,clinical application research,and occupational injury and protection,are summarized.The main research areas of finite element method are as follows:new accurate modeling process,the optimized simulation method,diversified clinical effect evaluation,and the clinical application of artificial lumbar disc.According to the recent research progress,the application prospects of finite element method,such as automation and individuation of modeling process,evaluation and analysis of new operation methods and simulation of mechanical damage and dynamic response,are discussed.The purpose of this paper is to provide the theoretical reference and practical guidance for the clinical lumbar problems by reviewing the application of finite element method in the field of the lumbar spine biomechanics.

  9. Evaluating performance of risk identification methods through a large-scale simulation of observational data.

    PubMed

    Ryan, Patrick B; Schuemie, Martijn J

    2013-10-01

    There has been only limited evaluation of statistical methods for identifying safety risks of drug exposure in observational healthcare data. Simulations can support empirical evaluation, but have not been shown to adequately model the real-world phenomena that challenge observational analyses. To design and evaluate a probabilistic framework (OSIM2) for generating simulated observational healthcare data, and to use this data for evaluating the performance of methods in identifying associations between drug exposure and health outcomes of interest. Seven observational designs, including case-control, cohort, self-controlled case series, and self-controlled cohort design were applied to 399 drug-outcome scenarios in 6 simulated datasets with no effect and injected relative risks of 1.25, 1.5, 2, 4, and 10, respectively. Longitudinal data for 10 million simulated patients were generated using a model derived from an administrative claims database, with associated demographics, periods of drug exposure derived from pharmacy dispensings, and medical conditions derived from diagnoses on medical claims. Simulation validation was performed through descriptive comparison with real source data. Method performance was evaluated using Area Under ROC Curve (AUC), bias, and mean squared error. OSIM2 replicates prevalence and types of confounding observed in real claims data. When simulated data are injected with relative risks (RR) ≥ 2, all designs have good predictive accuracy (AUC > 0.90), but when RR < 2, no methods achieve 100 % predictions. Each method exhibits a different bias profile, which changes with the effect size. OSIM2 can support methodological research. Results from simulation suggest method operating characteristics are far from nominal properties.

  10. Morphometrical study on senile larynx.

    PubMed

    Zieliński, R

    2001-01-01

    The aim of the study was a morphometrical macroscopic evaluation of senile larynges, according to its usefulness in ORL diagnostic and operational methods. Larynx preparations were taken from cadavers of both sexes, of age 65 and over, about 24 hours after death. Clinically important laryngeal diameters were collected using common morphometrical methods. A few body features were also being gathered. Computer statistical methods were used in data assessment, including basic statistics and linear correlations between diameters and between diameters and body features. The data presented in the study may be very helpful in evaluation of diagnostic methods. It may also help in selection of right operational tool' sizes, the most appropriate operational technique choice, preoperative preparations and designing and building virtual and plastic models for physicians' training.

  11. Improving the performances of autofocus based on adaptive retina-like sampling model

    NASA Astrophysics Data System (ADS)

    Hao, Qun; Xiao, Yuqing; Cao, Jie; Cheng, Yang; Sun, Ce

    2018-03-01

    An adaptive retina-like sampling model (ARSM) is proposed to balance autofocusing accuracy and efficiency. Based on the model, we carry out comparative experiments between the proposed method and the traditional method in terms of accuracy, the full width of the half maxima (FWHM) and time consumption. Results show that the performances of our method are better than that of the traditional method. Meanwhile, typical autofocus functions, including sum-modified-Laplacian (SML), Laplacian (LAP), Midfrequency-DCT (MDCT) and Absolute Tenengrad (ATEN) are compared through comparative experiments. The smallest FWHM is obtained by the use of LAP, which is more suitable for evaluating accuracy than other autofocus functions. The autofocus function of MDCT is most suitable to evaluate the real-time ability.

  12. Economic evaluation of factorial randomised controlled trials: challenges, methods and recommendations

    PubMed Central

    Gray, Alastair

    2017-01-01

    Increasing numbers of economic evaluations are conducted alongside randomised controlled trials. Such studies include factorial trials, which randomise patients to different levels of two or more factors and can therefore evaluate the effect of multiple treatments alone and in combination. Factorial trials can provide increased statistical power or assess interactions between treatments, but raise additional challenges for trial‐based economic evaluations: interactions may occur more commonly for costs and quality‐adjusted life‐years (QALYs) than for clinical endpoints; economic endpoints raise challenges for transformation and regression analysis; and both factors must be considered simultaneously to assess which treatment combination represents best value for money. This article aims to examine issues associated with factorial trials that include assessment of costs and/or cost‐effectiveness, describe the methods that can be used to analyse such studies and make recommendations for health economists, statisticians and trialists. A hypothetical worked example is used to illustrate the challenges and demonstrate ways in which economic evaluations of factorial trials may be conducted, and how these methods affect the results and conclusions. Ignoring interactions introduces bias that could result in adopting a treatment that does not make best use of healthcare resources, while considering all interactions avoids bias but reduces statistical power. We also introduce the concept of the opportunity cost of ignoring interactions as a measure of the bias introduced by not taking account of all interactions. We conclude by offering recommendations for planning, analysing and reporting economic evaluations based on factorial trials, taking increased analysis costs into account. © 2017 The Authors. Statistics in Medicine published by John Wiley & Sons Ltd. PMID:28470760

  13. Importance of Economic Evaluation in Health Care: An Indian Perspective.

    PubMed

    Dang, Amit; Likhar, Nishkarsh; Alok, Utkarsh

    2016-05-01

    Health economic studies provide information to decision makers for efficient use of available resources for maximizing health benefits. Economic evaluation is one part of health economics, and it is a tool for comparing costs and consequences of different interventions. Health technology assessment is a technique for economic evaluation that is well adapted by developed countries. The traditional classification of economic evaluation includes cost-minimization, cost-effectiveness analysis, cost-utility analysis, and cost-benefit analysis. There has been uncertainty in the conduct of such economic evaluations in India, due to some hesitancy with respect to the adoption of their guidelines. The biggest challenge in this evolutionary method is lack of understanding of methods in current use by all those involved in the provision and purchasing of health care. In some countries, different methods of economic evaluation have been adopted for decision making, most commonly to address the question of public subsidies for the purchase of medicines. There is limited evidence on the impact of health insurance on the health and economic well-being of beneficiaries in developing countries. India is currently pursuing several strategies to improve health services for its population, including investing in government-provided services as well as purchasing services from public and private providers through various schemes. Prospects for future growth and development in this field are required in India because rapid health care inflation, increasing rates of chronic conditions, aging population, and increasing technology diffusion will require greater economic efficiency into health care systems. Copyright © 2016 International Society for Pharmacoeconomics and Outcomes Research (ISPOR). Published by Elsevier Inc. All rights reserved.

  14. Medical Literature Evaluation Education at US Schools of Pharmacy

    PubMed Central

    Phillips, Jennifer; Demaris, Kendra

    2016-01-01

    Objective. To determine how medical literature evaluation (MLE) is being taught across the United States and to summarize methods for teaching and assessing MLE. Methods. An 18-question survey was administered to faculty members whose primary responsibility was teaching MLE at schools and colleges of pharmacy. Results. Responses were received from 90 (71%) US schools of pharmacy. The most common method of integrating MLE into the curriculum was as a stand-alone course (49%). The most common placement was during the second professional year (43%) or integrated throughout the curriculum (25%). The majority (77%) of schools used a team-based approach. The use of active-learning strategies was common as was the use of multiple methods of evaluation. Responses varied regarding what role the course director played in incorporating MLE into advanced pharmacy practice experiences (APPEs). Conclusion. There is a trend toward incorporating MLE education components throughout the pre-APPE curriculum and placement of literature review/evaluation exercises into therapeutics practice skills laboratories to help students see how this skill integrates into other patient care skills. Several pre-APPE educational standards for MLE education exist, including journal club activities, a team-based approach to teaching and evaluation, and use of active-learning techniques. PMID:26941431

  15. Meta-evaluation of published studies on evaluation of health disaster preparedness exercises through a systematic review

    PubMed Central

    Sheikhbardsiri, Hojjat; Yarmohammadian, Mohammad H; Khankeh, Hamid Reza; Nekoei-Moghadam, Mahmoud; Raeisi, Ahmad Reza

    2018-01-01

    OBJECTIVE: Exercise evaluation is one of the most important steps and sometimes neglected in designing and taking exercises, in this stage of exercise, it systematically identifying, gathering, and interpreting related information to indicate how an exercise has fulfilled its objectives. The present study aimed to assess the most important evaluation techniques applied in evaluating health exercises for emergencies and disasters. METHODS: This was meta-evaluation study through a systematic review. In this research, we searched papers based on specific and relevant keywords in research databases including ISI web of science, PubMed, Scopus, Science Direct, Ovid, ProQuest, Wiley, Google Scholar, and Persian database such as ISC and SID. The search keywords and strategies are followed; “simulation,” “practice,” “drill,” “exercise,” “instrument,” “tool,” “questionnaire,” “ measurement,” “checklist,” “scale,” “test,” “inventory,” “battery,” “evaluation,” “assessment,” “appraisal,” “emergency,” “disaster,” “cricise,” “hazard,” “catastrophe,: “hospital”, “prehospital,” “health centers,” “treatment centers,” were used in combination with Boolean operators OR and AND. RESULTS: The research findings indicate that there are different techniques and methods for data collection to evaluate performance exercises of health centers and affiliated organizations in disasters and emergencies including debriefing inventories, self-report, questionnaire, interview, observation, shooting video, and photographing, electronic equipment which can be individually or collectively used depending on exercise objectives or purposes. CONCLUSION: Taking exercise in the health sector is one of the important steps in preparation and implementation of disaster risk management programs. This study can be thus utilized to improve preparedness of different sectors of health system according to the latest available evaluation techniques and methods for better implementation of disaster exercise evaluation stages. PMID:29417075

  16. Economic Evaluation of Hospital and Community Pharmacy Services.

    PubMed

    Gammie, Todd; Vogler, Sabine; Babar, Zaheer-Ud-Din

    2017-01-01

    To review the international body of literature from 2010 to 2015 concerning methods of economic evaluations used in hospital- and community-based studies of pharmacy services in publicly funded health systems worldwide, their clinical outcomes, and economic effectiveness. The literature search was undertaken between May 2, 2015, and September 4, 2015. Keywords included "health economics" and "evaluation" "assessment" or "appraisal," "methods," "hospital" or "community" or "residential care," "pharmacy" or "pharmacy services" and "cost minimisation analysis" or "cost utility analysis" or "cost effectiveness analysis" or "cost benefit analysis." The databases searched included MEDLINE, PubMed, Google Scholar, Science Direct, Springer Links, and Scopus, and journals searched included PLoS One, PLoS Medicine, Nature, Health Policy, Pharmacoeconomics, The European Journal of Health Economics, Expert Review of Pharmacoeconomics and Outcomes Research, and Journal of Health Economics. Studies were selected on the basis of study inclusion criteria. These criteria included full-text original research articles undertaking an economic evaluation of hospital- or community-based pharmacy services in peer-reviewed scientific journals and in English, in countries with a publicly funded health system published between 2010 and 2015. 14 articles were included in this review. Cost-utility analysis (CUA) was the most utilized measure. Cost-minimization analysis (CMA) was not used by any studies. The limited use of cost-benefit analyses (CBAs) is likely a result of technical challenges in quantifying the cost of clinical benefits, risks, and outcomes. Hospital pharmacy services provided clinical benefits including improvements in patient health outcomes and reductions in adverse medication use, and all studies were considered cost-effective due to meeting a cost-utility (per quality-adjusted life year) threshold or were cost saving. Community pharmacy services were considered cost-effective in 8 of 10 studies. Economic evaluations of hospital and community pharmacy services are becoming increasingly commonplace to enable an understanding of which health care services provide value for money and to inform policy makers as to which services will be cost-effective in light of limited health care resources.

  17. Why so many "rigorous" evaluations fail to identify unintended consequences of development programs: How mixed methods can contribute.

    PubMed

    Bamberger, Michael; Tarsilla, Michele; Hesse-Biber, Sharlene

    2016-04-01

    Many widely-used impact evaluation designs, including randomized control trials (RCTs) and quasi-experimental designs (QEDs), frequently fail to detect what are often quite serious unintended consequences of development programs. This seems surprising as experienced planners and evaluators are well aware that unintended consequences frequently occur. Most evaluation designs are intended to determine whether there is credible evidence (statistical, theory-based or narrative) that programs have achieved their intended objectives and the logic of many evaluation designs, even those that are considered the most "rigorous," does not permit the identification of outcomes that were not specified in the program design. We take the example of RCTs as they are considered by many to be the most rigorous evaluation designs. We present a numbers of cases to illustrate how infusing RCTs with a mixed-methods approach (sometimes called an "RCT+" design) can strengthen the credibility of these designs and can also capture important unintended consequences. We provide a Mixed Methods Evaluation Framework that identifies 9 ways in which UCs can occur, and we apply this framework to two of the case studies. Copyright © 2016 Elsevier Ltd. All rights reserved.

  18. Best methods for evaluating educational impact: a comparison of the efficacy of commonly used measures of library instruction.

    PubMed

    Schilling, Katherine; Applegate, Rachel

    2012-10-01

    Libraries are increasingly called upon to demonstrate student learning outcomes and the tangible benefits of library educational programs. This study reviewed and compared the efficacy of traditionally used measures for assessing library instruction, examining the benefits and drawbacks of assessment measures and exploring the extent to which knowledge, attitudes, and behaviors actually paralleled demonstrated skill levels. An overview of recent literature on the evaluation of information literacy education addressed these questions: (1) What evaluation measures are commonly used for evaluating library instruction? (2) What are the pros and cons of popular evaluation measures? (3) What are the relationships between measures of skills versus measures of attitudes and behavior? Research outcomes were used to identify relationships between measures of attitudes, behaviors, and skills, which are typically gathered via attitudinal surveys, written skills tests, or graded exercises. Results provide useful information about the efficacy of instructional evaluation methods, including showing significant disparities between attitudes, skills, and information usage behaviors. This information can be used by librarians to implement the most appropriate evaluation methods for measuring important variables that accurately demonstrate students' attitudes, behaviors, or skills.

  19. Teaching community diagnosis to medical students: evaluation of a case study approach.

    PubMed

    Bair, C W

    1980-01-01

    A unique case study approach to training medical students in community diagnosis techniques was initiated at the Medical College of Ohio at Toledo. This paper describes the five elements of this teaching method: preliminary specification of target community and data base; group problem-solving requirement; specification of desired output; defined performance objectives; and regularly scheduled time for analysis. Experience with the case study method over two years was evaluated to identify specific strengths and weaknesses. The identified strengths include use of limited educational time to introduce community health problems, development of experience in a collegial team work setting, and specific awareness of the types of data useful to the analysis of community health service problems. Negative evaluations suggested that the method was not conducive to the development of skills in three areas: ability to establish the relative importance of health problems in communities; ability to identify an appropriate health system response to a community health problem from feasible alternatives; and ability to anticipate the community impact of health program modifications or improvements. Potential explanations for these deficiencies include: need for increased didactic support in the classroom for particular skill areas; need to establish a direct field experience in community diagnosis; inappropriateness of the data base used for evaluation of particular skills; and the probability that quantitative analysis, as used in this evaluation, may not be sufficient in and of itself to measure the outcome of a community diagnosis experience.

  20. Deterministic and fuzzy-based methods to evaluate community resilience

    NASA Astrophysics Data System (ADS)

    Kammouh, Omar; Noori, Ali Zamani; Taurino, Veronica; Mahin, Stephen A.; Cimellaro, Gian Paolo

    2018-04-01

    Community resilience is becoming a growing concern for authorities and decision makers. This paper introduces two indicator-based methods to evaluate the resilience of communities based on the PEOPLES framework. PEOPLES is a multi-layered framework that defines community resilience using seven dimensions. Each of the dimensions is described through a set of resilience indicators collected from literature and they are linked to a measure allowing the analytical computation of the indicator's performance. The first method proposed in this paper requires data on previous disasters as an input and returns as output a performance function for each indicator and a performance function for the whole community. The second method exploits a knowledge-based fuzzy modeling for its implementation. This method allows a quantitative evaluation of the PEOPLES indicators using descriptive knowledge rather than deterministic data including the uncertainty involved in the analysis. The output of the fuzzy-based method is a resilience index for each indicator as well as a resilience index for the community. The paper also introduces an open source online tool in which the first method is implemented. A case study illustrating the application of the first method and the usage of the tool is also provided in the paper.

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