Sample records for studies provide examples

  1. Do Example Sentences Work in Direct Vocabulary Learning?

    ERIC Educational Resources Information Center

    Baicheng, Zhang

    2009-01-01

    In the present study of language learning, three presentation modes (varying from providing or not providing example sentences by the teacher and by the students themselves) have been utilised to examine the effectiveness of using example sentences in vocabulary presentation and learning activities. The study is of 58 English majors as the…

  2. Design Principles of Worked Examples: A Review of the Empirical Studies

    ERIC Educational Resources Information Center

    Shen, Chun-Yi; Tsai, Hui-Chun

    2009-01-01

    Many researchers investigated the efficacy of using worked examples in classroom instruction and provided evidence in the effectiveness of worked example instruction in mathematics, computer programming, physics, and etc. However, there are limited studies in worked example design. The purpose of this study is to generate the instructional design…

  3. Differentiating Instruction: Providing the Right Kinds of Worked Examples for Individual Students

    ERIC Educational Resources Information Center

    Booth, Julie L.; Koedinger, Kenneth R.; Newton, Kristie J.; Lange, Karin E.

    2013-01-01

    A plethora of laboratory studies have shown that including the study of worked examples during problem-solving practice improves learning (Sweller, 1999; Sweller & Cooper, 1985). While most worked-example research focuses on the use of correct examples, recent work suggests that asking children to explain a combination of correct and incorrect…

  4. Example-based learning: comparing the effects of additionally providing three different integrative learning activities on physiotherapy intervention knowledge.

    PubMed

    Dyer, Joseph-Omer; Hudon, Anne; Montpetit-Tourangeau, Katherine; Charlin, Bernard; Mamede, Sílvia; van Gog, Tamara

    2015-03-07

    Example-based learning using worked examples can foster clinical reasoning. Worked examples are instructional tools that learners can use to study the steps needed to solve a problem. Studying worked examples paired with completion examples promotes acquisition of problem-solving skills more than studying worked examples alone. Completion examples are worked examples in which some of the solution steps remain unsolved for learners to complete. Providing learners engaged in example-based learning with self-explanation prompts has been shown to foster increased meaningful learning compared to providing no self-explanation prompts. Concept mapping and concept map study are other instructional activities known to promote meaningful learning. This study compares the effects of self-explaining, completing a concept map and studying a concept map on conceptual knowledge and problem-solving skills among novice learners engaged in example-based learning. Ninety-one physiotherapy students were randomized into three conditions. They performed a pre-test and a post-test to evaluate their gains in conceptual knowledge and problem-solving skills (transfer performance) in intervention selection. They studied three pairs of worked/completion examples in a digital learning environment. Worked examples consisted of a written reasoning process for selecting an optimal physiotherapy intervention for a patient. The completion examples were partially worked out, with the last few problem-solving steps left blank for students to complete. The students then had to engage in additional self-explanation, concept map completion or model concept map study in order to synthesize and deepen their knowledge of the key concepts and problem-solving steps. Pre-test performance did not differ among conditions. Post-test conceptual knowledge was higher (P < .001) in the concept map study condition (68.8 ± 21.8%) compared to the concept map completion (52.8 ± 17.0%) and self-explanation (52.2 ± 21.7%) conditions. Post-test problem-solving performance was higher (P < .05) in the self-explanation (63.2 ± 16.0%) condition compared to the concept map study (53.3 ± 16.4%) and concept map completion (51.0 ± 13.6%) conditions. Students in the self-explanation condition also invested less mental effort in the post-test. Studying model concept maps led to greater conceptual knowledge, whereas self-explanation led to higher transfer performance. Self-explanation and concept map study can be combined with worked example and completion example strategies to foster intervention selection.

  5. Cultural definitions of elder maltreatment in Portugal.

    PubMed

    Mercurio, Andrea E; Nyborn, Justin

    2006-01-01

    A small convenience sample of 34 participants (17 males, 17 females) from the Portuguese islands of the Azores and Madeira were asked to provide examples of how extreme, moderate, and mild maltreatment towards an elder would be defined in their culture and society. Neglect, especially psychological neglect, physical maltreatment, and psychological maltreatment were the most frequently reported types of maltreatment. References to neglect and physical maltreatment appeared most often as examples of extreme maltreatment. In general, men were somewhat more likely than women to provide examples of physical aggression in their examples of maltreatment. As examples of extreme maltreatment, females provided significantly more examples of abandonment than males. Although interpretations of the findings must be cautious because of the small sample size and limited statistical power, the study illustrates a procedure for assessing constructs of elder mistreatment in a way that attends to respondents' own constructions of the phenomenon.

  6. Operational Art Requirements in the Korean War

    DTIC Science & Technology

    2012-05-17

    Historical case studies can provide concrete examples to test the validity of theory and doctrine. A critical analysis of the examples provided by...war into a global conflagration .45 However, as early as 13 July 1950, MacArthur developed his plan to do more than reestablish the territorial

  7. The Pedagogical Examples of Groups and Rings That Algebraists Think Are Most Important in an Introductory Course

    ERIC Educational Resources Information Center

    Cook, John Paul; Fukawa-Connelly, Tim

    2015-01-01

    This article reports on an exploratory study designed to investigate the reasoning behind algebraists' selection of examples. Variation theory provided a lens to analyze their collections of examples. Our findings include the classes of examples of groups and rings that algebraists believe to be most pedagogically useful. Chief among their…

  8. Observational evidence and strength of evidence domains: case examples

    PubMed Central

    2014-01-01

    Background Systematic reviews of healthcare interventions most often focus on randomized controlled trials (RCTs). However, certain circumstances warrant consideration of observational evidence, and such studies are increasingly being included as evidence in systematic reviews. Methods To illustrate the use of observational evidence, we present case examples of systematic reviews in which observational evidence was considered as well as case examples of individual observational studies, and how they demonstrate various strength of evidence domains in accordance with current Agency for Healthcare Research and Quality (AHRQ) Evidence-based Practice Center (EPC) methods guidance. Results In the presented examples, observational evidence is used when RCTs are infeasible or raise ethical concerns, lack generalizability, or provide insufficient data. Individual study case examples highlight how observational evidence may fulfill required strength of evidence domains, such as study limitations (reduced risk of selection, detection, performance, and attrition); directness; consistency; precision; and reporting bias (publication, selective outcome reporting, and selective analysis reporting), as well as additional domains of dose-response association, plausible confounding that would decrease the observed effect, and strength of association (magnitude of effect). Conclusions The cases highlighted in this paper demonstrate how observational studies may provide moderate to (rarely) high strength evidence in systematic reviews. PMID:24758494

  9. The Effects of Examples on the Comprehension of Textbooks.

    ERIC Educational Resources Information Center

    Twohig, Paul T.

    A study was conducted to examine learning from textbook sentences that provide examples. It was predicted that an example written succinctly and with a word order that emphasized its parallel semantic relations with the exemplified principle, such as "animals have parasites; dogs have fleas," would have a positive effect on idea comprehension. It…

  10. The Perceived Usefulness of a Summary of Performance by Postsecondary Disability Service Providers

    ERIC Educational Resources Information Center

    de Vries, Rebecca S.

    2011-01-01

    This study investigated postsecondary disability service providers' (DSP) perceived usefulness of an example of a well-developed SOP. This example SOP was included in a 22 question survey, administered electronically to DSPs who are members of the Association on Higher Education and Disability (AHEAD). The participants (n=298) were asked to rate…

  11. Multilevel Modeling and School Psychology: A Review and Practical Example

    ERIC Educational Resources Information Center

    Graves, Scott L., Jr.; Frohwerk, April

    2009-01-01

    The purpose of this article is to provide an overview of the state of multilevel modeling in the field of school psychology. The authors provide a systematic assessment of published research of multilevel modeling studies in 5 journals devoted to the research and practice of school psychology. In addition, a practical example from the nationally…

  12. Learning communication from erroneous video-based examples: A double-blind randomised controlled trial.

    PubMed

    Schmitz, Felix Michael; Schnabel, Kai Philipp; Stricker, Daniel; Fischer, Martin Rudolf; Guttormsen, Sissel

    2017-06-01

    Appropriate training strategies are required to equip undergraduate healthcare students to benefit from communication training with simulated patients. This study examines the learning effects of different formats of video-based worked examples on initial communication skills. First-year nursing students (N=36) were randomly assigned to one of two experimental groups (correct v. erroneous examples) or to the control group (no examples). All the groups were provided an identical introduction to learning materials on breaking bad news; the experimental groups also received a set of video-based worked examples. Each example was accompanied by a self-explanation prompt (considering the example's correctness) and elaborated feedback (the true explanation). Participants presented with erroneous examples broke bad news to a simulated patient significantly more appropriately than students in the control group. Additionally, they tended to outperform participants who had correct examples, while participants presented with correct examples tended to outperform the control group. The worked example effect was successfully adapted for learning in the provider-patient communication domain. Implementing video-based worked examples with self-explanation prompts and feedback can be an effective strategy to prepare students for their training with simulated patients, especially when examples are erroneous. Copyright © 2017 Elsevier B.V. All rights reserved.

  13. Millifluidics for Chemical Synthesis and Time-resolved Mechanistic Studies

    PubMed Central

    Krishna, Katla Sai; Biswas, Sanchita; Navin, Chelliah V.; Yamane, Dawit G.; Miller, Jeffrey T.; Kumar, Challa S.S.R.

    2013-01-01

    Procedures utilizing millifluidic devices for chemical synthesis and time-resolved mechanistic studies are described by taking three examples. In the first, synthesis of ultra-small copper nanoclusters is described. The second example provides their utility for investigating time resolved kinetics of chemical reactions by analyzing gold nanoparticle formation using in situ X-ray absorption spectroscopy. The final example demonstrates continuous flow catalysis of reactions inside millifluidic channel coated with nanostructured catalyst. PMID:24327099

  14. Differentiating Literacy Instruction for Digital Learners: The Effect of Multimedia Think-Aloud Worked Examples on Adolescent Analytical Reading Comprehension

    ERIC Educational Resources Information Center

    Neebe, Diana Combs

    2017-01-01

    Learning by example is nothing new to the education landscape. Research into think-aloud protocols, though often used as a form of assessment rather than instruction, provided practical, content-specific literacy strategies for crafting the instructional intervention in this study. Additionally, research into worked examples--from the earliest…

  15. A Social Studies Education Lesson from Turkey: Human Rights

    ERIC Educational Resources Information Center

    Açikalin, Mehmet

    2014-01-01

    This article provides an example of a social studies lesson from Turkish educational context in order to facilitate comparison with examples of social studies lessons from other parts of the world. This lesson was recorded in a 7th grade class at a middle school in one of the metropolitan neighborhoods in Istanbul. According to the current…

  16. The Consequences of Fading Instructional Guidance on Delayed Performance: The Case of Financial Services Training

    ERIC Educational Resources Information Center

    Kissane, Mark; Kalyuga, Slava; Chandler, Paul; Sweller, John

    2008-01-01

    Empirical studies within a cognitive load framework have determined that for novice learners, worked examples provide appropriate levels of instructional guidance. As learners advance in specific subject domains, worked examples should be gradually replaced by practice problems with limited guidance. This study compared performance, both…

  17. Psychological Factors Affecting Medical Students' Learning with Erroneous Worked Examples

    ERIC Educational Resources Information Center

    Klopp, Eric; Stark, Robin; Kopp, Veronika; Fischer, Martin R.

    2013-01-01

    The acquisition of diagnostic competence is seen as a major goal during the course of study in medicine. One innovative method to foster this goal is problem-based learning with erroneous worked examples provided in a computer learning environment. The present study explores the relationship of attitudinal, emotional and cognitive factors for…

  18. Guidance Provided to Authors on Citing and Formatting References in Nursing Journals

    PubMed Central

    Nicoll, Leslie H.; Oermann, Marilyn H.; Chinn, Peggy L.; Conklin, Jamie L.; Amarasekara, Sathya; McCarty, Midori

    2018-01-01

    Reference citations should be accurate, complete, and presented in a consistent format. This study analyzed information provided to authors on preparing citations and references for manuscripts submitted to nursing journals (n = 209). Half of the journals used the American Psychological Association reference style. Slightly more than half provided examples of how to cite articles and books; there were fewer examples of citing websites and online journals. Suggestions on improving accuracy of references are discussed. PMID:29346137

  19. Russian perspectives on elder abuse: an exploratory study.

    PubMed

    Rinsky, Karina; Malley-Morrison, Kathleen

    2006-01-01

    The purpose of this exploratory study was to analyze Russian perceptions of elder abuse as reflected in their examples of abusive behavior from an adult child to an aging parent. Also of interest was the possibility of gender differences in the Russian perspectives on elder abuse. The convenience sample consisted of 21 Russian participants (10 males, 10 females, and one without gender identified), who provided examples of extreme, moderate, and mild abuse from an adult child towards an aging parent. Most examples of extreme abuse were forms of physical violence. Typical examples of moderate abuse were instances of psychological aggression-particularly verbal aggression-and neglect. The most common examples of mild abuse were verbal aggression and neglect. One-way analyses of variance revealed statistically significant gender differences in the number of references to psychological aggression in general and to verbal aggression in particular in the examples of moderate abuse, with females giving more examples than males.

  20. Urban Ecology: Exploring Wildlife in the City.

    ERIC Educational Resources Information Center

    Malcarne, Vanessa

    1982-01-01

    Provides rationale for and examples of nature study activities using school yards, vacant lots, and city parks. Focusing on city wildlife, the interdisciplinary activities provide experiences in observing and investigating. Three duplicating masters (animals on ground, animals overhead, and tree study) are provided. (JN)

  1. Learning the Brain in Introductory Psychology: Examining the Generation Effect for Mnemonics and Examples

    ERIC Educational Resources Information Center

    McCabe, Jennifer A.

    2015-01-01

    The goal of this research was to determine whether there is a generation effect for learner-created keyword mnemonics and real-life examples, compared to instructor-provided materials, when learning neurophysiological terms and definitions in introductory psychology. Students participated in an individual (Study 1) or small-group (Study 2)…

  2. Domain Modeling for Adaptive Training and Education in Support of the US Army Learning Model-Research Outline

    DTIC Science & Technology

    2015-06-01

    Definitions are provided for this section to distinguish between adaptive training and education elements and also to highlight their relationships ...illustrate this point Franke (2011) asserts that through the use of case study examples, instruction can provide the pedagogical foundation for decision...a prime example of an adaptive training and education system: a learner or trainee model, an instructional or pedagogical model, a domain model

  3. Health Sciences Library Support of a University Common Reading Program: A Case Study.

    PubMed

    Delwiche, Frances A

    2017-01-01

    Common reading programs have become increasingly popular on college and university campuses as a means for increasing student engagement, retention, and success. This article describes the characteristics, goals, and benefits of common reading programs and provides examples from the literature of academic library involvement in them. Finally, an example is provided of how one academic health sciences library participated in its institution's First-Year Summer Reading program.

  4. National Weather Service - Strategic Planning and Policy

    Science.gov Websites

    National Research Council Committee" NWS FOCUS Article - "Recent Study Identifies Digital products and services. For example, every experimental product should go through a public comment period . For example, providing a marine forecast product tailored to the needs of a particular shipping

  5. 26 CFR 1.312-4 - Examples of adjustments provided in section 312(c).

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 4 2010-04-01 2010-04-01 false Examples of adjustments provided in section 312... (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES Effects on Corporation § 1.312-4 Examples of adjustments... examples: Example 1. On December 2, 1954, Corporation X distributed to its sole shareholder, A, an...

  6. Cultivating cohort studies for observational translational research.

    PubMed

    Ransohoff, David F

    2013-04-01

    "Discovery" research about molecular markers for diagnosis, prognosis, or prediction of response to therapy has frequently produced results that were not reproducible in subsequent studies. What are the reasons, and can observational cohorts be cultivated to provide strong and reliable answers to those questions? Experimental Selected examples are used to illustrate: (i) what features of research design provide strength and reliability in observational studies about markers of diagnosis, prognosis, and response to therapy? (ii) How can those design features be cultivated in existing observational cohorts, for example, within randomized controlled clinical trial (RCT), other existing observational research studies, or practice settings like health maintenance organization (HMOs)? Examples include a study of RNA expression profiles of tumor tissue to predict prognosis of breast cancer, a study of serum proteomics profiles to diagnose ovarian cancer, and a study of stool-based DNA assays to screen for colon cancer. Strengths and weaknesses of observational study design features are discussed, along with lessons about how features that help assure strength might be "cultivated" in the future. By considering these examples and others, it may be possible to develop a process of "cultivating cohorts" in ongoing RCTs, observational cohort studies, and practice settings like HMOs that have strong features of study design. Such an effort could produce sources of data and specimens to reliably answer questions about the use of molecular markers in diagnosis, prognosis, and response to therapy.

  7. Affiliation, joint venture or PSO? Case studies show why provider strategies differ.

    PubMed

    1998-03-01

    Joint venture, affiliation or PSO? Here are three case studies of providers who chose different paths under Medicare risk, plus some key questions you'll want to ask of your own provider organization. Learn from these examples so you'll make the best contracting decisions.

  8. A Case Study of a Combat Helicopter’s Single Unit Vulnerability.

    DTIC Science & Technology

    1987-03-01

    22 2.6 Generic Fault Tree Diagram ----------------------- 24 2.7 Example Kill Diagram ----------------------------- 25 2.8 Example EEA Summary...that of the vulnerability program, a susceptibility program is subdivided into three major tasks. First is an essential elements analysis ( EEA ...which leads to the 27 i final undesired event in much the same manner as a FTA. An example EEA is provided in Figure 2.8. [Ref.l:p226] The

  9. Qualitative case study data analysis: an example from practice.

    PubMed

    Houghton, Catherine; Murphy, Kathy; Shaw, David; Casey, Dympna

    2015-05-01

    To illustrate an approach to data analysis in qualitative case study methodology. There is often little detail in case study research about how data were analysed. However, it is important that comprehensive analysis procedures are used because there are often large sets of data from multiple sources of evidence. Furthermore, the ability to describe in detail how the analysis was conducted ensures rigour in reporting qualitative research. The research example used is a multiple case study that explored the role of the clinical skills laboratory in preparing students for the real world of practice. Data analysis was conducted using a framework guided by the four stages of analysis outlined by Morse ( 1994 ): comprehending, synthesising, theorising and recontextualising. The specific strategies for analysis in these stages centred on the work of Miles and Huberman ( 1994 ), which has been successfully used in case study research. The data were managed using NVivo software. Literature examining qualitative data analysis was reviewed and strategies illustrated by the case study example provided. Discussion Each stage of the analysis framework is described with illustration from the research example for the purpose of highlighting the benefits of a systematic approach to handling large data sets from multiple sources. By providing an example of how each stage of the analysis was conducted, it is hoped that researchers will be able to consider the benefits of such an approach to their own case study analysis. This paper illustrates specific strategies that can be employed when conducting data analysis in case study research and other qualitative research designs.

  10. Examples of Cross-Cultural Problems Encountered by Americans Working Overseas; An Instructor's Handbook.

    ERIC Educational Resources Information Center

    Foster, Robert J.

    Intended mainly as a source book for instructors in area training programs, this handbook contains summary accounts of events illustrating problems frequently met by Americans working overseas, especially those providing technical assistance in developing nations. Examples are drawn from case studies, interviews, anthropology texts, and other…

  11. Disciplining Students Receiving Special Education

    ERIC Educational Resources Information Center

    Gordon, Vincent H. A., Jr.

    2017-01-01

    A brief synopsis of the legality of disciplining students with special needs in public education is presented. An example of a case study is also presented from the experience of the author demonstrating laws surrounding providing students with a free and public education (FAPE). Examples of the application of the laws protecting students' rights…

  12. Providing Staff Training and Programming to Support People with Disabilities: An Academic Library Case Study

    ERIC Educational Resources Information Center

    Brannen, Michelle H.; Milewski, Steven; Mack, Thura

    2017-01-01

    This case study explores services academic libraries provide to students with disabilities and the impact these can have on the success and experience of these students. The study focuses on staff training and outreach programming. The authors examine the academic library literature surrounding these topics, provide examples of programming…

  13. Integrating intersectionality and biomedicine in health disparities research.

    PubMed

    Kelly, Ursula A

    2009-01-01

    Persisting health disparities have lead to calls for an increase in health research to address them. Biomedical scientists call for research that stratifies individual indicators associated with health disparities, for example, ethnicity. Feminist social scientists recommend feminist intersectionality research. Intersectionality is the multiplicative effect of inequalities experienced by nondominant marginalized groups, for example, ethnic minorities, women, and the poor. The elimination of health disparities necessitates integration of both paradigms in health research. This study provides a practical application of the integration of biomedical and feminist intersectionality paradigms in nursing research, using a psychiatric intervention study with battered Latino women as an example.

  14. 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.

  15. Meta-Analysis in Higher Education: An Illustrative Example Using Hierarchical Linear Modeling

    ERIC Educational Resources Information Center

    Denson, Nida; Seltzer, Michael H.

    2011-01-01

    The purpose of this article is to provide higher education researchers with an illustrative example of meta-analysis utilizing hierarchical linear modeling (HLM). This article demonstrates the step-by-step process of meta-analysis using a recently-published study examining the effects of curricular and co-curricular diversity activities on racial…

  16. Can the Isolated-Elements Strategy Be Improved by Targeting Points of High Cognitive Load for Additional Practice?

    ERIC Educational Resources Information Center

    Ayres, Paul

    2013-01-01

    Reducing problem complexity by isolating elements has been shown to be an effective instructional strategy. Novices, in particular, benefit from learning from worked examples that contain partially interacting elements rather than worked examples that provide full interacting elements. This study investigated whether the isolating-elements…

  17. Combining Qualitative and Quantitative Data: An Example.

    ERIC Educational Resources Information Center

    Sikka, Anjoo; And Others

    Methodology from an ongoing research study to validate teaching techniques for deaf and blind students provides an example of the ways that several types of quantitative and qualitative data can be combined in analysis. Four teacher and student pairs were selected. The students were between 14 and 21 years old, had both auditory and visual…

  18. Using Video for Microanalysis of Teachers' Embodied Pedagogical Practices

    ERIC Educational Resources Information Center

    Tobin, Joseph; Hayashi, Akiko

    2015-01-01

    This paper briefly reviews theories of embodiment and then provides an example from our recent work on how we use video in our comparative studies of preschools to highlight embodied and implicit cultural pedagogies. The example we present focuses on how Japanese preschool teachers use the Japanese cultural practice of "mimamoru"…

  19. The Five Senses--Prime Keys to the Art and Craft of Teaching.

    ERIC Educational Resources Information Center

    Sutro, Edmund; Gross, Richard E.

    1983-01-01

    Sight, sound, touch, smell, and taste can be utilized to infuse excitement into social studies courses. For example, students can view photographs of persons during the Great Depression, listen to music of various eras, and handle realia. Two examples of approaches in United States history are provided. (RM)

  20. Czech Basic Course: Verb List.

    ERIC Educational Resources Information Center

    Stoner, William; Vit, Karel V.

    This compilation of verbs, intended for students of the Defense Language Institute (DLI) Basic Course, provides brief definitions for each entry. No sentence examples are included. The text is intended to serve as a compact reference and study aid. Examples are selected from the Basic Course and the DLI Czech-English Dictionary. Entries are listed…

  1. Explanation and Elaboration Document for the STROBE-Vet Statement: Strengthening the Reporting of Observational Studies in Epidemiology - Veterinary Extension.

    PubMed

    O'Connor, A M; Sargeant, J M; Dohoo, I R; Erb, H N; Cevallos, M; Egger, M; Ersbøll, A K; Martin, S W; Nielsen, L R; Pearl, D L; Pfeiffer, D U; Sanchez, J; Torrence, M E; Vigre, H; Waldner, C; Ward, M P

    2016-12-01

    The STROBE (Strengthening the Reporting of Observational Studies in Epidemiology) statement was first published in 2007 and again in 2014. The purpose of the original STROBE was to provide guidance for authors, reviewers and editors to improve the comprehensiveness of reporting; however, STROBE has a unique focus on observational studies. Although much of the guidance provided by the original STROBE document is directly applicable, it was deemed useful to map those statements to veterinary concepts, provide veterinary examples and highlight unique aspects of reporting in veterinary observational studies. Here, we present the examples and explanations for the checklist items included in the STROBE-Vet Statement. Thus, this is a companion document to the STROBE-Vet Statement Methods and process document, which describes the checklist and how it was developed. © 2016 The Authors. Zoonoses and Public Health published by Blackwell Verlag GmbH.

  2. Learning Probabilistic Logic Models from Probabilistic Examples

    PubMed Central

    Chen, Jianzhong; Muggleton, Stephen; Santos, José

    2009-01-01

    Abstract We revisit an application developed originally using abductive Inductive Logic Programming (ILP) for modeling inhibition in metabolic networks. The example data was derived from studies of the effects of toxins on rats using Nuclear Magnetic Resonance (NMR) time-trace analysis of their biofluids together with background knowledge representing a subset of the Kyoto Encyclopedia of Genes and Genomes (KEGG). We now apply two Probabilistic ILP (PILP) approaches - abductive Stochastic Logic Programs (SLPs) and PRogramming In Statistical modeling (PRISM) to the application. Both approaches support abductive learning and probability predictions. Abductive SLPs are a PILP framework that provides possible worlds semantics to SLPs through abduction. Instead of learning logic models from non-probabilistic examples as done in ILP, the PILP approach applied in this paper is based on a general technique for introducing probability labels within a standard scientific experimental setting involving control and treated data. Our results demonstrate that the PILP approach provides a way of learning probabilistic logic models from probabilistic examples, and the PILP models learned from probabilistic examples lead to a significant decrease in error accompanied by improved insight from the learned results compared with the PILP models learned from non-probabilistic examples. PMID:19888348

  3. Learning Probabilistic Logic Models from Probabilistic Examples.

    PubMed

    Chen, Jianzhong; Muggleton, Stephen; Santos, José

    2008-10-01

    We revisit an application developed originally using abductive Inductive Logic Programming (ILP) for modeling inhibition in metabolic networks. The example data was derived from studies of the effects of toxins on rats using Nuclear Magnetic Resonance (NMR) time-trace analysis of their biofluids together with background knowledge representing a subset of the Kyoto Encyclopedia of Genes and Genomes (KEGG). We now apply two Probabilistic ILP (PILP) approaches - abductive Stochastic Logic Programs (SLPs) and PRogramming In Statistical modeling (PRISM) to the application. Both approaches support abductive learning and probability predictions. Abductive SLPs are a PILP framework that provides possible worlds semantics to SLPs through abduction. Instead of learning logic models from non-probabilistic examples as done in ILP, the PILP approach applied in this paper is based on a general technique for introducing probability labels within a standard scientific experimental setting involving control and treated data. Our results demonstrate that the PILP approach provides a way of learning probabilistic logic models from probabilistic examples, and the PILP models learned from probabilistic examples lead to a significant decrease in error accompanied by improved insight from the learned results compared with the PILP models learned from non-probabilistic examples.

  4. Testing the Model-Observer Similarity Hypothesis with Text-Based Worked Examples

    ERIC Educational Resources Information Center

    Hoogerheide, Vincent; Loyens, Sofie M. M.; Jadi, Fedora; Vrins, Anna; van Gog, Tamara

    2017-01-01

    Example-based learning is a very effective and efficient instructional strategy for novices. It can be implemented using text-based worked examples that provide a written demonstration of how to perform a task, or (video) modelling examples in which an instructor (the "model") provides a demonstration. The model-observer similarity (MOS)…

  5. Interdisciplinary Social Science: An Example of Vertical and Horizontal Integrative Strategies

    NASA Astrophysics Data System (ADS)

    Durlabhji, Subhash

    2005-03-01

    A "Concept-Centered" strategy for Integrative Studies was proposed and implemented in the creation of the book Power in Focus: Perspectives from Multiple Disciplines. Essays on the ubiquitous concept of Power were solicited internationally and a final cut of ten essays from ten different disciplines, written specifically for this project, were included. This provides an example of what might be called Horizontal Integration, as it cut across multiple disciplines. One of the essays in the volume provides an example of Vertical Integration, as it applies a psychodynamic hypothesis concerning the development of Power relations among humans across hierarchical levels, from the child to the family to other groups and institutions in society, including finally entire nations and regions of the world.

  6. TLS from fundamentals to practice

    PubMed Central

    Urzhumtsev, Alexandre; Afonine, Pavel V.; Adams, Paul D.

    2014-01-01

    The Translation-Libration-Screw-rotation (TLS) model of rigid-body harmonic displacements introduced in crystallography by Schomaker & Trueblood (1968) is now a routine tool in macromolecular studies and is a feature of most modern crystallographic structure refinement packages. In this review we consider a number of simple examples that illustrate important features of the TLS model. Based on these examples simplified formulae are given for several special cases that may occur in structure modeling and refinement. The derivation of general TLS formulae from basic principles is also provided. This manuscript describes the principles of TLS modeling, as well as some select algorithmic details for practical application. An extensive list of applications references as examples of TLS in macromolecular crystallography refinement is provided. PMID:25249713

  7. Incorporating physical activity measures into environmental monitoring of national parks: an example from Yosemite.

    PubMed

    Walden-Schreiner, Chelsey; Leung, Yu-Fai; Floyd, Myron F

    2014-09-01

    To address increasing prevalence of obesity and associated chronic disease, recent national initiatives have called upon federal agencies to promote healthy lifestyles and provide opportunities for physical activity. In response, the U.S. National Park Service has developed strategies promoting health through physical activity in addition to its well-established biodiversity and landscape conservation mission. Incorporating physical activity measures with routine environmental monitoring would help identify areas where parks can promote active pursuits with minimal environmental impact. This study provides one example of how protocols developed for visitor and environmental monitoring can generate data to evaluate physical activity. Researchers implemented an observational study in high-use meadows of Yosemite National Park during the summer of 2011. Variables measured include the spatial location of visitors and activity type. Metabolic equivalents (METs) were assigned to activity categories and analyzed for average energy expenditure. Mean METs values indicated sedentary to light physical activity across the meadows, with greater means in areas with boardwalks or paved pathways. Data leveraged in this study provide park managers an example of adapting existing monitoring programs to incorporate indicators relevant to physical activity evaluation and how physical activity may impact resource conditions in national parks.

  8. Quality Document Examples (Record of Decision of the Year Contest)

    EPA Pesticide Factsheets

    This page provides document examples with clear documentation that are consistent with the Superfund Program's policy and regulations. The examples provided here are the winners of the Superfund ROD of the Year Contest (1999-2004)

  9. Teaching World History through Symbolic Figures: Zhou Enlai, an Example.

    ERIC Educational Resources Information Center

    Lorantas, Raymond

    Use of symbolic figures in the college level world history course can provide a vehicle for studying social organization, political movements, and economic institutions of a given period. For example, Zhou Enlai, an activist and leader throughout much of the 20th century, symbolizes the major themes and forces of this era: change,…

  10. The Use of Discourse Analysis To Enhance ESP Teacher Knowledge: An Example Using Aviation English.

    ERIC Educational Resources Information Center

    Sullivan, Patricia; Girginer, Handan

    2002-01-01

    Provides an example of one process used by a teacher-researcher to increase and expand the use of relevant materials, knowledgeable teachers, and teamwork with subject matter professionals in English for academic purposes' (EAP) programs. The study was conducted for an EAP program in a civil aviation school in Turkey. (Author/VWL)

  11. A study of concept-based similarity approaches for recommending program examples

    NASA Astrophysics Data System (ADS)

    Hosseini, Roya; Brusilovsky, Peter

    2017-07-01

    This paper investigates a range of concept-based example recommendation approaches that we developed to provide example-based problem-solving support in the domain of programming. The goal of these approaches is to offer students a set of most relevant remedial examples when they have trouble solving a code comprehension problem where students examine a program code to determine its output or the final value of a variable. In this paper, we use the ideas of semantic-level similarity-based linking developed in the area of intelligent hypertext to generate examples for the given problem. To determine the best-performing approach, we explored two groups of similarity approaches for selecting examples: non-structural approaches focusing on examples that are similar to the problem in terms of concept coverage and structural approaches focusing on examples that are similar to the problem by the structure of the content. We also explored the value of personalized example recommendation based on student's knowledge levels and learning goal of the exercise. The paper presents concept-based similarity approaches that we developed, explains the data collection studies and reports the result of comparative analysis. The results of our analysis showed better ranking performance of the personalized structural variant of cosine similarity approach.

  12. The interplay between customer participation and difficulty of design examples in the online designing process and its effect on customer satisfaction: mediational analyses.

    PubMed

    Chang, Chia-Chi; Chen, Hui-Yun; Huang, I-Chiang

    2009-04-01

    In the current consumer-centric economy, consumers increasingly desire the opportunity to design their own products in order to express more effectively their self-image. Mass customization, based on efficient and flexible modulization designs, has provided individualized products to satisfy this desire. This work presents an experiment employed to demonstrate that customer participation leads to higher satisfaction. Specifically, the increment in customer satisfaction due to participation is greater when an easy example is provided than when either no example or a difficult one is provided. Additionally, self-congruity plays a mediating role on the customer participation-satisfaction relationship, and this mediating effect varies across different levels of the design example provided in the design process. When an easy design example is present, customer participation has a direct effect on satisfaction, in addition to the indirect effect of self-congruity. When a difficult example is provided, customer participation does not have incremental effects on either self-congruity or customer satisfaction. Finally, when no design example is shown to customers, contrary to our expectation, participation still enhances customer satisfaction due to an increased sense of self-congruity.

  13. Corporate Advertisements and Environmental Futures: An Educational Odyssey.

    ERIC Educational Resources Information Center

    Thomashow, Mitchell

    1988-01-01

    Analyzes advertisements as vision, myth, and mirror. Provides an interpretive technique that can be used as a curriculum for studying issues advertisements. Offers eight advertisements as examples and provides an analysis and critique of each. (MVL)

  14. Exclusionary Feminism: Stories of Undergraduate Women of Color

    ERIC Educational Resources Information Center

    Linder, Chris

    2011-01-01

    Seven activist Women of Color shared experiences of racism in feminist activism and provided strategies for building a more inclusive movement through this narrative study. A history of exclusion in the feminist movement and examples of marginalization provide a context for this study. Critical race feminism and intersectionality theory inform the…

  15. A Gentle Introduction to Bayesian Analysis: Applications to Developmental Research

    PubMed Central

    van de Schoot, Rens; Kaplan, David; Denissen, Jaap; Asendorpf, Jens B; Neyer, Franz J; van Aken, Marcel AG

    2014-01-01

    Bayesian statistical methods are becoming ever more popular in applied and fundamental research. In this study a gentle introduction to Bayesian analysis is provided. It is shown under what circumstances it is attractive to use Bayesian estimation, and how to interpret properly the results. First, the ingredients underlying Bayesian methods are introduced using a simplified example. Thereafter, the advantages and pitfalls of the specification of prior knowledge are discussed. To illustrate Bayesian methods explained in this study, in a second example a series of studies that examine the theoretical framework of dynamic interactionism are considered. In the Discussion the advantages and disadvantages of using Bayesian statistics are reviewed, and guidelines on how to report on Bayesian statistics are provided. PMID:24116396

  16. Reconstruction and Nation Building Industry. Industry Study, Spring 2009

    DTIC Science & Technology

    2009-01-01

    case of post-conflict operations (recent examples include Iraq, Afghanistan and Lebanon ). Particularly for smaller donors, working through the UN...justice models may have serious defects concerning gender equality, children’s rights, and forms of punishment that are prohibited under international... Lebanon provides an unfortunate example of a failed reconstruction in the 1990’s, which led to violence and a

  17. Strategic Planning in Higher Education: A Guide for Heads of Institutions, Senior Managers and Members of Governing Bodies.

    ERIC Educational Resources Information Center

    Higher Education Funding Council for England, Bristol.

    This guide provides examples of good practice in strategic planning within higher education, particularly as it applies to Northern Ireland. Examples are drawn from the experiences of 13 case study universities and colleges. Sections of the report include a summary; an introduction and overview of the strategic planning process; and a discussion…

  18. Analytical Chemistry: A Literary Approach

    NASA Astrophysics Data System (ADS)

    Lucy, Charles A.

    2000-04-01

    The benefits of incorporating real-world examples of chemistry into lectures and lessons is reflected by the recent inclusion of the Teaching with Problems and Case Studies column in this Journal. However, these examples lie outside the experience of many students, and so much of the impact of "real-world" examples is lost. This paper provides an anthology of references to analytical chemistry techniques from history, popular fiction, and film. Such references are amusing to both instructor and student. Further, the fictional descriptions can serve as a focal point for discussions of a technique's true capabilities and limitations.

  19. Memorable Exemplification in Undergraduate Biology: Instructor Strategies and Student Perceptions

    NASA Astrophysics Data System (ADS)

    Oliveira, Alandeom W.; Bretzlaff, Tiffany; Brown, Adam O.

    2018-03-01

    The present study examines the exemplification practices of a university biology instructor during a semester-long course. Attention is given specifically to how the instructor approaches memorable exemplification—classroom episodes identified by students as a source of memorable learning experiences. A mixed-method research approach is adopted wherein descriptive statistics is combined with qualitative multimodal analysis of video recordings and survey data. Our findings show that memorable experiencing of examples may depend on a multiplicity of factors, including whether students can relate to the example, how unique and extreme the example is, how much detail is provided, whether the example is enacted rather than told, and whether the example makes students feel sad, surprised, shocked, and/or amused. It is argued that, rather than simply assuming that all examples are equally effective, careful consideration needs be given to how exemplification can serve as an important source of memorable science learning experiences.

  20. STARE-HI – Statement on Reporting of Evaluation Studies in Health Informatics

    PubMed Central

    Brender, J.; Talmon, J.; de Keizer, N.; Nykänen, P.; Rigby, M.; Ammenwerth, E.

    2013-01-01

    Summary Background Improving the quality of reporting of evaluation studies in health informatics is an important requirement towards the vision of evidence-based health informatics. The STARE-HI – Statement on Reporting of Evaluation Studies in health informatics, published in 2009, provides guidelines on the elements to be contained in an evaluation study report. Objectives To elaborate on and provide a rationale for the principles of STARE-HI and to guide authors and readers of evaluation studies in health informatics by providing explanatory examples of reporting. Methods A group of methodologists, researchers and editors prepared the present elaboration of the STARE-HI statement and selected examples from the literature. Results The 35 STARE-HI items to be addressed in evaluation papers describing health informatics interventions are discussed one by one and each is extended with examples and elaborations. Conclusion The STARE-HI statement and this elaboration document should be helpful resources to improve reporting of both quantitative and qualitative evaluation studies. Evaluation manuscripts adhering to the principles will enable readers of such papers to better place the studies in a proper context and judge their validity and generalizability, and thus in turn optimize the exploitation of the evidence contained therein. Limitations This paper is based on experiences of a group of editors, reviewers, authors of systematic reviews and readers of the scientific literature. The applicability of the details of these principles has to evolve as a function of their use in practice. PMID:24155788

  1. Approach to economic evaluation in primary care: review of a useful tool for primary care reform.

    PubMed

    McBrien, Kerry A; Manns, Braden

    2013-06-01

    To present an overview of the methods of economic evaluation in health care, using examples of studies applicable to primary care. The main concepts discussed in this article were derived from expert opinion and substantiated with well respected textbooks and comprehensive Canadian guidelines. Examples of cost-effectiveness estimates were taken from the published literature. We describe the basic principles of economic evaluation and provide an introduction to its interpretation, using examples of studies applicable to primary care. A basic understanding of health economics will allow primary care practitioners to begin to incorporate economic data, including that from economic evaluations when they are available, into resource planning for their practices.

  2. Conducting Simulation Studies in the R Programming Environment.

    PubMed

    Hallgren, Kevin A

    2013-10-12

    Simulation studies allow researchers to answer specific questions about data analysis, statistical power, and best-practices for obtaining accurate results in empirical research. Despite the benefits that simulation research can provide, many researchers are unfamiliar with available tools for conducting their own simulation studies. The use of simulation studies need not be restricted to researchers with advanced skills in statistics and computer programming, and such methods can be implemented by researchers with a variety of abilities and interests. The present paper provides an introduction to methods used for running simulation studies using the R statistical programming environment and is written for individuals with minimal experience running simulation studies or using R. The paper describes the rationale and benefits of using simulations and introduces R functions relevant for many simulation studies. Three examples illustrate different applications for simulation studies, including (a) the use of simulations to answer a novel question about statistical analysis, (b) the use of simulations to estimate statistical power, and (c) the use of simulations to obtain confidence intervals of parameter estimates through bootstrapping. Results and fully annotated syntax from these examples are provided.

  3. On Teaching About Terrorism: A Conceptual Approach.

    ERIC Educational Resources Information Center

    Kleg, Milton

    1986-01-01

    Recommends the use of conceptual mapping, case studies, and springboards to discussion and inquiry as viable approaches to the study of terrorism in secondary classrooms. Provides numerous examples of conceptual maps. (JDH)

  4. Exploring Differences in the Content of Job Interviews between Youth with and without a Physical Disability

    PubMed Central

    Lindsay, Sally; DePape, Anne-Marie

    2015-01-01

    Objective Although people with disabilities have great potential to provide advantages to work environments, many encounter barriers in finding employment, especially youth who are looking for their first job. A job interview is an essential component of obtaining employment. The objective of this study is to explore the content of the answers given in job interviews among youth with disabilities compared to typically developing youth. Methods A purposive sample of 31 youth (16 with typical development and 15 with disability) completed a mock job interview as part of an employment readiness study. The interview questions focused on skills and experiences, areas for improvement, and actions taken during problem-based scenarios. Transcribed interviews were analyzed using a content analysis of themes that emerged from the interviews. Results We found several similarities and differences between youth with disabilities and typically developing youth. Similarities included giving examples from school, emphasizing their “soft skills” (i.e., people and communication skills) and giving examples of relevant experience for the position. Both groups of youth gave similar examples for something they were proud of but fewer youth with disabilities provided examples. Differences in the content of job interview answers between the two groups included youth with disabilities: (1) disclosing their condition; (2) giving fewer examples related to customer service and teamwork skills; (3) experiencing greater challenges in providing feedback to team members and responding to scenario-based problem solving questions; and (4) drawing on examples from past work, volunteer and extra curricular activities. Conclusions Clinicians and educators should help youth to understand what their marketable skills are and how to highlight them in an interview. Employers need to understand that the experiences of youth with disabilities may be different than typically developing youth. Our findings also help to inform employment readiness programs by highlighting the areas where youth with disabilities may need extra help as compared to typically developing youth. PMID:25799198

  5. Methodological triangulation in a study of social support for siblings of children with cancer.

    PubMed

    Murray, J S

    1999-10-01

    Triangulation is an approach to research that is becoming increasingly popular among nurse researchers. Five types of triangulation are used in nursing research: data, methodological, theoretical, researcher, and analytical triangulation. Methodological triangulation is an attempt to improve validity by combining various techniques in one study. In this article, an example of quantitative and qualitative triangulation is discussed to illustrate the procedures used and the results achieved. The secondary data used as an example are from a previous study that was conducted by the researcher and investigated nursing interventions used by pediatric oncology nurses to provide social support to siblings of children with cancer. Results show that methodological triangulation was beneficial in this study for three reasons. First, the careful comparison of quantitative and qualitative data added support for the social support variables under investigation. Second, the comparison showed more in-depth dimensions about pediatric oncology nurses providing social support to siblings of children with cancer. Finally, the use of methodological triangulation provided insight into revisions for the quantitative instrument.

  6. Study on generation and sharing of on-demand global seamless data—Taking MODIS NDVI as an example

    NASA Astrophysics Data System (ADS)

    Shen, Dayong; Deng, Meixia; Di, Liping; Han, Weiguo; Peng, Chunming; Yagci, Ali Levent; Yu, Genong; Chen, Zeqiang

    2013-04-01

    By applying advanced Geospatial Data Abstraction Library (GDAL) and BigTIFF technology in a Geographical Information System (GIS) with Service Oriented Architecture (SOA), this study has derived global datasets using tile-based input data and implemented Virtual Web Map Service (VWMS) and Virtual Web Coverage Service (VWCS) to provide software tools for visualization and acquisition of global data. Taking MODIS Normalized Difference Vegetation Index (NDVI) as an example, this study proves the feasibility, efficiency and features of the proposed approach.

  7. Learning about Functions through Learner-Generated Examples

    ERIC Educational Resources Information Center

    Dinkelman, Martha O.; Cavey, Laurie O.

    2015-01-01

    In many mathematics classrooms, the teacher provides "worked examples" to demonstrate how students should perform certain algorithms or processes. Some students find it difficult to generalize from the examples that teachers provide and cannot apply what they have learned in new situations (Watson and Mason 2002). Instead, teachers might…

  8. Encapsulation methods for organic electrical devices

    DOEpatents

    Blum, Yigal D.; Chu, William Siu-Keung; MacQueen, David Brent; Shi, Yijian

    2013-06-18

    The disclosure provides methods and materials suitable for use as encapsulation barriers in electronic devices. In one embodiment, for example, there is provided an electroluminescent device or other electronic device encapsulated by alternating layers of a silicon-containing bonding material and a ceramic material. The encapsulation methods provide, for example, electronic devices with increased stability and shelf-life. The invention is useful, for example, in the field of microelectronic devices.

  9. Commercial Activities Baseline Study

    DTIC Science & Technology

    1991-03-01

    object oriented programming technology) that automated processing . This report documents that methodology, reviews the candidates and criteria for source data, and provides examples of the output reports.

  10. Developing Distinctive Degrees

    ERIC Educational Resources Information Center

    Goodchild, Lester F.; Chambers, Crystal Renée; Freeman, Sydney, Jr.

    2016-01-01

    Understanding one's competitive stance in a globally competitive environment provides the requisite awareness to maintain both competitive edge and institutional responsiveness. In this chapter, three case studies are presented to provide examples of ways in which strategic scanning can enhance the academic program development process and how…

  11. Interdisciplinary Approach: A Lever to Business Innovation

    ERIC Educational Resources Information Center

    Razmak, Jamil; Bélanger, Charles H.

    2016-01-01

    The advances in interdisciplinary studies are driving universities to utilize their available resources to efficiently enable development processes and provide increasing examples of research while gradually allocating the disciplines' resources. Ultimately, this trend asks universities to provide a platform of integrated disciplines, along with…

  12. How to do a grounded theory study: a worked example of a study of dental practices

    PubMed Central

    2011-01-01

    Background Qualitative methodologies are increasingly popular in medical research. Grounded theory is the methodology most-often cited by authors of qualitative studies in medicine, but it has been suggested that many 'grounded theory' studies are not concordant with the methodology. In this paper we provide a worked example of a grounded theory project. Our aim is to provide a model for practice, to connect medical researchers with a useful methodology, and to increase the quality of 'grounded theory' research published in the medical literature. Methods We documented a worked example of using grounded theory methodology in practice. Results We describe our sampling, data collection, data analysis and interpretation. We explain how these steps were consistent with grounded theory methodology, and show how they related to one another. Grounded theory methodology assisted us to develop a detailed model of the process of adapting preventive protocols into dental practice, and to analyse variation in this process in different dental practices. Conclusions By employing grounded theory methodology rigorously, medical researchers can better design and justify their methods, and produce high-quality findings that will be more useful to patients, professionals and the research community. PMID:21902844

  13. How to do a grounded theory study: a worked example of a study of dental practices.

    PubMed

    Sbaraini, Alexandra; Carter, Stacy M; Evans, R Wendell; Blinkhorn, Anthony

    2011-09-09

    Qualitative methodologies are increasingly popular in medical research. Grounded theory is the methodology most-often cited by authors of qualitative studies in medicine, but it has been suggested that many 'grounded theory' studies are not concordant with the methodology. In this paper we provide a worked example of a grounded theory project. Our aim is to provide a model for practice, to connect medical researchers with a useful methodology, and to increase the quality of 'grounded theory' research published in the medical literature. We documented a worked example of using grounded theory methodology in practice. We describe our sampling, data collection, data analysis and interpretation. We explain how these steps were consistent with grounded theory methodology, and show how they related to one another. Grounded theory methodology assisted us to develop a detailed model of the process of adapting preventive protocols into dental practice, and to analyse variation in this process in different dental practices. By employing grounded theory methodology rigorously, medical researchers can better design and justify their methods, and produce high-quality findings that will be more useful to patients, professionals and the research community.

  14. Generating Ground Reference Data for a Global Impervious Surface Survey

    NASA Technical Reports Server (NTRS)

    Tilton, James C.; deColstoun, Eric Brown; Wolfe, Robert E.; Tan, Bin; Huang, Chengquan

    2012-01-01

    We are engaged in a project to produce a 30m impervious cover data set of the entire Earth for the years 2000 and 2010 based on the Landsat Global Land Survey (GLS) data set. The GLS data from Landsat provide an unprecedented opportunity to map global urbanization at this resolution for the first time, with unprecedented detail and accuracy. Moreover, the spatial resolution of Landsat is absolutely essential to accurately resolve urban targets such as buildings, roads and parking lots. Finally, with GLS data available for the 1975, 1990, 2000, and 2005 time periods, and soon for the 2010 period, the land cover/use changes due to urbanization can now be quantified at this spatial scale as well. Our approach works across spatial scales using very high spatial resolution commercial satellite data to both produce and evaluate continental scale products at the 30m spatial resolution of Landsat data. We are developing continental scale training data at 1m or so resolution and aggregating these to 30m for training a regression tree algorithm. Because the quality of the input training data are critical, we have developed an interactive software tool, called HSegLearn, to facilitate the photo-interpretation of high resolution imagery data, such as Quickbird or Ikonos data, into an impervious versus non-impervious map. Previous work has shown that photo-interpretation of high resolution data at 1 meter resolution will generate an accurate 30m resolution ground reference when coarsened to that resolution. Since this process can be very time consuming when using standard clustering classification algorithms, we are looking at image segmentation as a potential avenue to not only improve the training process but also provide a semi-automated approach for generating the ground reference data. HSegLearn takes as its input a hierarchical set of image segmentations produced by the HSeg image segmentation program [1, 2]. HSegLearn lets an analyst specify pixel locations as being either positive or negative examples, and displays a classification of the study area based on these examples. For our study, the positive examples are examples of impervious surfaces and negative examples are examples of non-impervious surfaces. HSegLearn searches the hierarchical segmentation from HSeg for the coarsest level of segmentation at which selected positive example locations do not conflict with negative example locations and labels the image accordingly. The negative example regions are always defined at the finest level of segmentation detail. The resulting classification map can be then further edited at a region object level using the previously developed HSegViewer tool [3]. After providing an overview of the HSeg image segmentation program, we provide a detailed description of the HSegLearn software tool. We then give examples of using HSegLearn to generate ground reference data and conclude with comments on the effectiveness of the HSegLearn tool.

  15. Coupling of computer modeling with in vitro methodologies to reduce animal usage in toxicity testing.

    PubMed

    Clewell, H J

    1993-05-01

    The use of in vitro data to support the development of physiologically based pharmacokinetic (PBPK) models and to reduce the requirement for in vivo testing is demonstrated by three examples. In the first example, polychlorotrifluoroethylene, in vitro studies comparing metabolism and tissue response in rodents and primates made it possible to obtain definitive data for a human risk assessment without resorting to additional in vivo studies with primates. In the second example, a PBPK model for organophosphate esters was developed in which the parameters defining metabolism, tissue partitioning, and enzyme inhibition were all characterized by in vitro studies, and the rest of the model parameters were established from the literature. The resulting model was able to provide a coherent description of enzyme inhibition following both acute and chronic exposures in mice, rats, and humans. In the final example, the carcinogenic risk assessment for methylene chloride was refined by the incorporation of in vitro data on human metabolism into a PBPK model.

  16. Chemistry Modeling for Aerothermodynamics and TPS

    NASA Technical Reports Server (NTRS)

    Wang, Dunyou; Stallcop, James R.; Dateo, Christopher e.; Schwenke, David W.; Halicioglu, Timur; Huo, winifred M.

    2005-01-01

    Recent advances in supercomputers and highly scalable quantum chemistry software render computational chemistry methods a viable means of providing chemistry data for aerothermal analysis at a specific level of confidence. Four examples of first principles quantum chemistry calculations will be presented. Study of the highly nonequilibrium rotational distribution of a nitrogen molecule from the exchange reaction N + N2 illustrates how chemical reactions can influence rotational distribution. The reaction C2H + H2 is one example of a radical reaction that occurs during hypersonic entry into an atmosphere containing methane. A study of the etching of a Si surface illustrates our approach to surface reactions. A recently developed web accessible database and software tool (DDD) that provides the radiation profile of diatomic molecules is also described.

  17. Chemistry Modeling for Aerothermodynamics and TPS

    NASA Technical Reports Server (NTRS)

    Wang, Dun-You; Stallcop, James R.; Dateo, Christopher E.; Schwenke, David W.; Haliciogiu, Timur; Huo, Winifred

    2004-01-01

    Recent advances in supercomputers and highly scalable quantum chemistry software render computational chemistry methods a viable means of providing chemistry data for aerothermal analysis at a specific level of confidence. Four examples of first principles quantum chemistry calculations will be presented. The study of the highly nonequilibrium rotational distribution of nitrogen molecule from the exchange reaction N + N2 illustrates how chemical reactions can influence the rotational distribution. The reaction C2H + H2 is one example of a radical reaction that occurs during hypersonic entry into a methane containing atmosphere. A study of the etching of Si surface illustrates our approach to surface reactions. A recently developed web accessible database and software tool (DDD) that provides the radiation profile of diatomic molecules is also described.

  18. Using Debate to Maximize Learning Potential: A Case Study

    ERIC Educational Resources Information Center

    Firmin, Michael W.; Vaughn, Aaron; Dye, Amanda

    2007-01-01

    Following a review of the literature, an educational case study is provided for the benefit of faculty preparing college courses. In particular, we provide a transcribed debate utilized in a General Psychology course as a best practice example of how to craft a debate which maximizes student learning. The work is presented as a model for the…

  19. Immortal time bias in observational studies of time-to-event outcomes.

    PubMed

    Jones, Mark; Fowler, Robert

    2016-12-01

    The purpose of the study is to show, through simulation and example, the magnitude and direction of immortal time bias when an inappropriate analysis is used. We compare 4 methods of analysis for observational studies of time-to-event outcomes: logistic regression, standard Cox model, landmark analysis, and time-dependent Cox model using an example data set of patients critically ill with influenza and a simulation study. For the example data set, logistic regression, standard Cox model, and landmark analysis all showed some evidence that treatment with oseltamivir provides protection from mortality in patients critically ill with influenza. However, when the time-dependent nature of treatment exposure is taken account of using a time-dependent Cox model, there is no longer evidence of a protective effect of treatment. The simulation study showed that, under various scenarios, the time-dependent Cox model consistently provides unbiased treatment effect estimates, whereas standard Cox model leads to bias in favor of treatment. Logistic regression and landmark analysis may also lead to bias. To minimize the risk of immortal time bias in observational studies of survival outcomes, we strongly suggest time-dependent exposures be included as time-dependent variables in hazard-based analyses. Copyright © 2016 Elsevier Inc. All rights reserved.

  20. Practical aspects of NMR signal assignment in larger and challenging proteins

    PubMed Central

    Frueh, Dominique P.

    2014-01-01

    NMR has matured into a technique routinely employed for studying proteins in near physiological conditions. However, applications to larger proteins are impeded by the complexity of the various correlation maps necessary to assign NMR signals. This article reviews the data analysis techniques traditionally employed for resonance assignment and describes alternative protocols necessary for overcoming challenges in large protein spectra. In particular, simultaneous analysis of multiple spectra may help overcome ambiguities or may reveal correlations in an indirect manner. Similarly, visualization of orthogonal planes in a multidimensional spectrum can provide alternative assignment procedures. We describe examples of such strategies for assignment of backbone, methyl, and nOe resonances. We describe experimental aspects of data acquisition for the related experiments and provide guidelines for preliminary studies. Focus is placed on large folded monomeric proteins and examples are provided for 37, 48, 53, and 81 kDa proteins. PMID:24534088

  1. Evaluating patient-reported outcome measurement comparability between paper and alternate versions, using the lung function questionnaire as an example.

    PubMed

    Dalal, Anand A; Nelson, Lauren; Gilligan, Theresa; McLeod, Lori; Lewis, Sandy; DeMuro-Mercon, Carla

    2011-01-01

    The goal of this study was to provide recommended steps to assess measurement comparability using a crossover study design and to demonstrate these steps using a short patient-reported outcome (PRO) instrument as an example. The example PRO instrument was administered via paper, Web, interactive voice response system, and interview; a randomized crossover design was used to gather data across the multiple administration types. Participants completed the PRO instrument, demographic and health questions, and a short preference questionnaire. Evaluation included comparisons of the item-level responses and agreement, comparison of mean scale scores, score classifications, and questions designed to collect usability and administration preference. Here the authors provide a four-step evaluation guide to evaluate measurement comparability and illustrate these steps using a case-finding tool. In the example, item-level kappa statistics between the paper and the alternate versions ranged from good to excellent, intraclass correlation coefficient for mean scores were above 0.70, and the rate of disagreement ranged from 2% to 14%. In addition, although participants had an administration preference, they reported few difficulties with the versions they were assigned. The steps described in this article provide a guide for evaluating whether to combine scores across administration versions to simplify analyses and interpretation under a crossover design. The guide recommends the investigation of item-level responses, summary scores, and participant usability/preference when comparing versions, with each step providing unique information to support comprehensive evaluation and informed decisions regarding whether to combine data. Copyright © 2011 International Society for Pharmacoeconomics and Outcomes Research (ISPOR). Published by Elsevier Inc. All rights reserved.

  2. Ambulatory Assessment.

    PubMed

    Carpenter, Ryan W; Wycoff, Andrea M; Trull, Timothy J

    2016-08-01

    In recent years, significant technological advances have changed our understanding of dynamic processes in clinical psychology. A particularly important agent of change has been ambulatory assessment (AA). AA is the assessment of individuals in their daily lives, combining the twin benefits of increased ecological validity and minimized retrospective biases. These benefits make AA particularly well-suited to the assessment of dynamic processes, and recent advancements in technology are providing exciting new opportunities to understand these processes in new ways. In the current article, we briefly detail the capabilities currently offered by smartphones and mobile physiological devices, as well as some of the practical and ethical challenges of incorporating these new technologies into AA research. We then provide several examples of recent innovative applications of AA methodology in clinical research, assessment, and intervention and provide a case example of AA data generated from a study utilizing multiple mobile devices. In this way, we aim to provide a sense of direction for researchers planning AA studies of their own.

  3. Vendor-buyer inventory models with trade credit financing under both non-cooperative and integrated environments

    NASA Astrophysics Data System (ADS)

    Teng, Jinn-Tsair; Chang, Chun-Tao; Chern, Maw-Sheng

    2012-11-01

    Most researchers studied vendor-buyer supply chain inventory policies only from the perspective of an integrated model, which provides us the best cooperative solution. However, in reality, not many vendors and buyers are wholly integrated. Hence, it is necessary to study the optimal policies not only under an integrated environment but also under a non-cooperative environment. In this article, we develop a supply chain vendor-buyer inventory model with trade credit financing linked to order quantity. We then study the optimal policies for both the vendor and the buyer under a non-cooperative environment first, and then under a cooperative integrated situation. Further, we provide some numerical examples to illustrate the theoretical results, compare the differences between these two distinct solutions, and obtain some managerial insights. For example, in a cooperative environment, to reduce the total cost for both parties, the vendor should either provide a simple permissible delay without order quantity restriction or offer a long permissible delay linked order quantity. By contrast, in a non-cooperative environment, the vendor should provide a short permissible delay to reduce its total cost.

  4. smwrData—An R package of example hydrologic data, version 1.1.1

    USGS Publications Warehouse

    Lorenz, David L.

    2015-11-06

    A collection of 24 datasets, including streamflow, well characteristics, groundwater elevations, and discrete water-quality concentrations, is provided to produce a consistent set of example data to demonstrate typical data manipulations or statistical analysis of hydrologic data. These example data are provided in an R package called smwrData. The data in the package have been collected by the U.S. Geological Survey or published in its reports, for example Helsel and Hirsch (2002). The R package provides a convenient mechanism for distributing the data to users of R within the U.S. Geological Survey and other users in the R community.

  5. Guidance for conducting hazardous materials flow surveys

    DOT National Transportation Integrated Search

    1995-01-01

    This report provides guidance on how to conduct a commodity flow study for hazardous materials moving by highway. It discusses the need for this type of study and details how to review baseline information and design the study. It includes examples a...

  6. Explanation and Elaboration Document for the STROBE-Vet Statement: Strengthening the Reporting of Observational Studies in Epidemiology-Veterinary Extension.

    PubMed

    O'Connor, A M; Sargeant, J M; Dohoo, I R; Erb, H N; Cevallos, M; Egger, M; Ersbøll, A K; Martin, S W; Nielsen, L R; Pearl, D L; Pfeiffer, D U; Sanchez, J; Torrence, M E; Vigre, H; Waldner, C; Ward, M P

    2016-11-01

    The STROBE (Strengthening the Reporting of Observational Studies in Epidemiology) statement was first published in 2007 and again in 2014. The purpose of the original STROBE was to provide guidance for authors, reviewers, and editors to improve the comprehensiveness of reporting; however, STROBE has a unique focus on observational studies. Although much of the guidance provided by the original STROBE document is directly applicable, it was deemed useful to map those statements to veterinary concepts, provide veterinary examples, and highlight unique aspects of reporting in veterinary observational studies. Here, we present the examples and explanations for the checklist items included in the STROBE-Vet statement. Thus, this is a companion document to the STROBE-Vet statement methods and process document (JVIM_14575 "Methods and Processes of Developing the Strengthening the Reporting of Observational Studies in Epidemiology-Veterinary (STROBE-Vet) Statement" undergoing proofing), which describes the checklist and how it was developed. Copyright © 2016 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals, Inc. on behalf of the American College of Veterinary Internal Medicine.

  7. Encapsulation methods and dielectric layers for organic electrical devices

    DOEpatents

    Blum, Yigal D; Chu, William Siu-Keung; MacQueen, David Brent; Shi, Yijan

    2013-07-02

    The disclosure provides methods and materials suitable for use as encapsulation barriers and dielectric layers in electronic devices. In one embodiment, for example, there is provided an electroluminescent device or other electronic device with a dielectric layer comprising alternating layers of a silicon-containing bonding material and a ceramic material. The methods provide, for example, electronic devices with increased stability and shelf-life. The invention is useful, for example, in the field of microelectronic devices.

  8. Social Studies Online Resources. Media Corner.

    ERIC Educational Resources Information Center

    Wilson, Jeri, Ed.

    1995-01-01

    Maintains that three types of social studies activities are found on the information highway: (1) electronic mail; (2) information; and (3) conferencing. Describes examples of each. Discusses commercial services and resource materials and provides references to online services. (CFR)

  9. Examples of sex/gender sensitivity in epidemiological research: results of an evaluation of original articles published in JECH 2006-2014.

    PubMed

    Jahn, Ingeborg; Börnhorst, Claudia; Günther, Frauke; Brand, Tilman

    2017-02-15

    During the last decades, sex and gender biases have been identified in various areas of biomedical and public health research, leading to compromised validity of research findings. As a response, methodological requirements were developed but these are rarely translated into research practice. The aim of this study is to provide good practice examples of sex/gender sensitive health research. We conducted a systematic search of research articles published in JECH between 2006 and 2014. An instrument was constructed to evaluate sex/gender sensitivity in four stages of the research process (background, study design, statistical analysis, discussion). In total, 37 articles covering diverse topics were included. Thereof, 22 were evaluated as good practice example in at least one stage; two articles achieved highest ratings across all stages. Good examples of the background referred to available knowledge on sex/gender differences and sex/gender informed theoretical frameworks. Related to the study design, good examples calculated sample sizes to be able to detect sex/gender differences, selected sex/gender sensitive outcome/exposure indicators, or chose different cut-off values for male and female participants. Good examples of statistical analyses used interaction terms with sex/gender or different shapes of the estimated relationship for men and women. Examples of good discussions interpreted their findings related to social and biological explanatory models or questioned the statistical methods used to detect sex/gender differences. The identified good practice examples may inspire researchers to critically reflect on the relevance of sex/gender issues of their studies and help them to translate methodological recommendations of sex/gender sensitivity into research practice.

  10. 17 CFR 248.102 - Examples.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 17 Commodity and Securities Exchanges 3 2010-04-01 2010-04-01 false Examples. 248.102 Section 248... AND S-AM Regulation S-AM: Limitations on Affiliate Marketing § 248.102 Examples. The examples in this subpart are not exclusive. The examples in this subpart provide guidance concerning the rules' application...

  11. Evaluating views of lecturers on the consistency of teaching content with teaching approach: traditional versus reform calculus

    NASA Astrophysics Data System (ADS)

    Sevimli, Eyup

    2016-08-01

    This study aims to evaluate the consistency of teaching content with teaching approaches in calculus on the basis of lecturers' views. In this sense, the structures of the examples given in two commonly used calculus textbooks, both in traditional and reform classrooms, are compared. The content analysis findings show that the examples in both textbooks are presented in a rather formal language and generally highlight procedural knowledge. And, even though the examples in the reform book chosen are structured using multiple representations, only a small number of them incorporated the usage of instructional technology. The lecturers' views which were gathered indicated that, although, on the one hand, the example structures of the traditional textbook largely overlapped with the characteristics of the traditional approach, the example structures of the reform textbook, on the other hand, were found to be inconsistent with the characteristics of the reform approach, especially with regard to its environment and knowledge components. At the end of the paper, some suggestions for further studies are provided for book authors and researchers.

  12. Data Mining for Web-Based Support Systems: A Case Study in e-Custom Systems

    NASA Astrophysics Data System (ADS)

    Razmerita, Liana; Kirchner, Kathrin

    This chapter provides an example of a Web-based support system (WSS) used to streamline trade procedures, prevent potential security threats, and reduce tax-related fraud in cross-border trade. The architecture is based on a service-oriented architecture that includes smart seals and Web services. We discuss the implications and suggest further enhancements to demonstrate how such systems can move toward a Web-based decision support system with the support of data mining methods. We provide a concrete example of how data mining can help to analyze the vast amount of data collected while monitoring the container movements along its supply chain.

  13. An example of requirements for Advanced Subsonic Civil Transport (ASCT) flight control system using structured techniques

    NASA Technical Reports Server (NTRS)

    Mclees, Robert E.; Cohen, Gerald C.

    1991-01-01

    The requirements are presented for an Advanced Subsonic Civil Transport (ASCT) flight control system generated using structured techniques. The requirements definition starts from initially performing a mission analysis to identify the high level control system requirements and functions necessary to satisfy the mission flight. The result of the study is an example set of control system requirements partially represented using a derivative of Yourdon's structured techniques. Also provided is a research focus for studying structured design methodologies and in particular design-for-validation philosophies.

  14. Feature-based fusion of medical imaging data.

    PubMed

    Calhoun, Vince D; Adali, Tülay

    2009-09-01

    The acquisition of multiple brain imaging types for a given study is a very common practice. There have been a number of approaches proposed for combining or fusing multitask or multimodal information. These can be roughly divided into those that attempt to study convergence of multimodal imaging, for example, how function and structure are related in the same region of the brain, and those that attempt to study the complementary nature of modalities, for example, utilizing temporal EEG information and spatial functional magnetic resonance imaging information. Within each of these categories, one can attempt data integration (the use of one imaging modality to improve the results of another) or true data fusion (in which multiple modalities are utilized to inform one another). We review both approaches and present a recent computational approach that first preprocesses the data to compute features of interest. The features are then analyzed in a multivariate manner using independent component analysis. We describe the approach in detail and provide examples of how it has been used for different fusion tasks. We also propose a method for selecting which combination of modalities provides the greatest value in discriminating groups. Finally, we summarize and describe future research topics.

  15. Seeking instructional specificity: An example from analogical instruction

    NASA Astrophysics Data System (ADS)

    Kuo, Eric; Wieman, Carl E.

    2015-12-01

    Broad instructional methods like "interactive engagement" have been shown to be effective, but such general characterization provides little guidance on the details of how to structure instructional materials. In this study, we seek instructional specificity by comparing two ways of using an analogy to learn a target physical principle: (i) applying the analogy to the target physical domain on a case-by-case basis and (ii) using the analogy to create a general rule in the target physical domain. In the discussion sections of a large, introductory physics course (N =2 3 1 ), students who sought a general rule were better able to discover and apply a correct physics principle than students who analyzed the examples case by case. The difference persisted at a reduced level after subsequent direct instruction. We argue that students who performed case-by-case analyses were more likely to focus on idiosyncratic problem-specific features rather than the deep structural features. This study provides an example of investigations into how the specific structure of instructional materials can be consequential for what is learned.

  16. Sex trafficking and health care in Metro Manila: identifying social determinants to inform an effective health system response.

    PubMed

    Williams, Timothy P; Alpert, Elaine J; Ahn, Roy; Cafferty, Elizabeth; Konstantopoulos, Wendy Macias; Wolferstan, Nadya; Castor, Judith Palmer; McGahan, Anita M; Burke, Thomas F

    2010-12-15

    This social science case study examines the sex trafficking of women and girls in Metro Manila through a public health lens. Through key informant interviews with 51 health care and anti-trafficking stakeholders in Metro Manila, this study reports on observations about sex trafficking in Metro Manila that provide insight into understanding of risk factors for sex trafficking at multiple levels of the social environment: individual (for example, childhood abuse), socio-cultural (for example, gender inequality and a "culture of migration"), and macro (for example, profound poverty caused, inter alia, by environmental degradation disrupting traditional forms of labor). It describes how local health systems currently assist sex-trafficking victims, and provides a series of recommendations, ranging from prevention to policy, for how health care might play a larger role in promoting the health and human rights of this vulnerable population. Copyright © 2010 Williams, Alpert, Ahn, Cafferty, Konstantopoulos, Wolferstan, Castor, McGahan, and Burke. This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited.

  17. Center for Corporate Climate Leadership Success Stories: Case Studies in Supply Chain Engagement

    EPA Pesticide Factsheets

    The case studies on this page provide successful examples of companies engaging with their supply chains to reduce their greenhouse gas emissions, understand their shifting supply chain risks, and take advantage of market opportunities.

  18. Creating and Using Video Segments for Rural Teacher Education.

    ERIC Educational Resources Information Center

    Ludlow, Barbara L.; Duff, Michael C.

    This paper provides guidelines for using video presentations in teacher education programs in special education. The simplest use of video is to provide students with illustrations of basic concepts, demonstrations of specific skills, or examples of model programs and practices. Video can also deliver contextually rich case studies to stimulate…

  19. The Structure-Mapping Engine: Algorithm and Examples.

    ERIC Educational Resources Information Center

    Falkenhainer, Brian; And Others

    This description of the Structure-Mapping Engine (SME), a flexible, cognitive simulation program for studying analogical processing which is based on Gentner's Structure-Mapping theory of analogy, points out that the SME provides a "tool kit" for constructing matching algorithms consistent with this theory. This report provides: (1) a…

  20. A CASE STUDY DEMONSTRATING GUIDANCE FOR EVALUATING LANDFILL GAS EMISSIONS FROM CLOSED OR ABANDONED FACILITIES--SOMERSWORTH, NEW HAMPSHIRE

    EPA Science Inventory

    The purpose of the activities described in this document is to provide a demonstration of the procedures and methodologies described within the "Guidance for Evaluating Landfill Gas Emissions from Closed or Abandoned Facilities" (Guidance). This demonstration provides an example ...

  1. Mendelian randomisation in cardiovascular research: an introduction for clinicians

    PubMed Central

    Bennett, Derrick A; Holmes, Michael V

    2017-01-01

    Understanding the causal role of biomarkers in cardiovascular and other diseases is crucial in order to find effective approaches (including pharmacological therapies) for disease treatment and prevention. Classical observational studies provide naïve estimates of the likely role of biomarkers in disease development; however, such studies are prone to bias. This has direct relevance for drug development as if drug targets track to non-causal biomarkers, this can lead to expensive failure of these drugs in phase III randomised controlled trials. In an effort to provide a more reliable indication of the likely causal role of a biomarker in the development of disease, Mendelian randomisation studies are increasingly used, and this is facilitated by the availability of large-scale genetic data. We conducted a narrative review in order to provide a description of the utility of Mendelian randomisation for clinicians engaged in cardiovascular research. We describe the rationale and provide a basic description of the methods and potential limitations of Mendelian randomisation. We give examples from the literature where Mendelian randomisation has provided pivotal information for drug discovery including predicting efficacy, informing on target-mediated adverse effects and providing potential new evidence for drug repurposing. The variety of the examples presented illustrates the importance of Mendelian randomisation in order to prioritise drug targets for cardiovascular research. PMID:28596306

  2. Temperature Dependence of Errors in Parameters Derived from Van't Hoff Studies.

    ERIC Educational Resources Information Center

    Dec, Steven F.; Gill, Stanley J.

    1985-01-01

    The method of Clarke and Glew is broadly applicable to studies of the temperature dependence of equilibrium constant measurements. The method is described and examples of its use in comparing calorimetric results and temperature dependent gas solubility studies are provided. (JN)

  3. Current Challenges in Neurotoxicity Risk Assessment ...

    EPA Pesticide Factsheets

    Neurotoxicity risk assessment must continue to evolve in parallel with advances in basic research. Along with this evolution is an expansion in the scope of neurotoxicity assessments of environmental health risks. Examples of this expansion include an increasing emphasis on complex animal models that better replicate human behavior and a wider array of molecular and mechanistic data relevant to interpreting the underlying cause(s) of toxicity. However, modern neurotoxicology studies are often more nuanced and complicated than traditional studies, and they often vary considerably in evaluation methods from one study to the next, impeding comparisons. This can pose particular difficulties for risk assessors, especially given the recent demand for chemical risk assessments to be more systematic and transparent. This presentation will introduce and provide some examples of specific challenges in neurotoxicity assessments of environmental chemicals. Some of these challenges are relatively new to the field, such as the incorporation of data on neuron-supportive glial cells into hazard characterization, while other challenges have persisted for several decades, but only recently are studies being designed to evaluate them, including analyses of latent neurotoxicity. The examples provided illustrate some future research areas of interest for scientists and risk assessors examining human neurotoxicity risk. This abstract will be presented to internal U.S. Food and Drug A

  4. [Main results of the Swiss study on DRGs (Casemix Study)].

    PubMed

    Casemix, E

    1989-01-01

    Sponsored by the Health Administrations of nine cantons, this study was conducted by the University Institute of Social and Preventive Medicine in Lausanne in order to assess how DRGs could be used within the Swiss context. A data base mainly provided by the Swiss VESKA statistics was used. The first step provided the transformation of Swiss diagnostic and intervention codes into US codes, allowing direct use of the Yale Grouper for DRG. The second step showed that the overall performance of DRG in terms of variability reduction of the length of stay was similar to the one observed in US; there are, however, problems when the homogeneity of medicotechnical procedures for DRG is considered. The third steps showed how DRG could be used as an account unit in hospital, and how costs per DRG could be estimated. Other examples of applications of DRG were examined, for example comparison of Casemix or length of stay between hospitals.

  5. Reflection-for-action and the choice or design of examples in the teaching of mathematics

    NASA Astrophysics Data System (ADS)

    Olteanu, Constanta

    2017-09-01

    A qualitative study documented the use of examples in connection with reflection-for-action by mathematics educators. This article focuses on the use of mathematical examples that were chosen or designed by the teachers during lesson planning. The data are drawn from a 3-year project intended to make educational research in mathematics more useful to teachers. The focus in the present article was on how teachers reflected about students' learning as they prepared lessons. Analysis of the data showed that reflection-for-action was an effective teacher practice and useful for increasing the quality of the content the teacher intended to cover in a teaching situation. However, at the beginning of the study the teachers could not provide a proper explanation of what reflection was about. Their reflections were limited to preparing for the lessons in relation to the actual curriculum in Sweden. During the study, the teachers' reflection-for-action improved as a consequence of using patterns of variation in designing examples connected to the object of learning.

  6. Biology Today: Parasites and Human Ecology.

    ERIC Educational Resources Information Center

    Flannery, Maura C.

    1984-01-01

    Offers various reasons why the study of parasites and the diseases they cause should be incorporated into classroom biology discussions. Examples of several parasitic diseases and their ecological significance are provided. (JN)

  7. Mindfulness Meditation Training for Attention-Deficit/Hyperactivity Disorder in Adulthood: Current Empirical Support, Treatment Overview, and Future Directions

    PubMed Central

    Mitchell, John T.; Zylowska, Lidia; Kollins, Scott H.

    2015-01-01

    Research examining nonpharmacological interventions for adults diagnosed with attention-deficit/hyperactivity disorder (ADHD) has expanded in recent years and provides patients with more treatment options. Mindfulness-based training is an example of an intervention that is gaining promising preliminary empirical support and is increasingly administered in clinical settings. The aim of this review is to provide a rationale for the application of mindfulness to individuals diagnosed with ADHD, describe the current state of the empirical basis for mindfulness training in ADHD, and summarize a treatment approach specific to adults diagnosed with ADHD: the Mindful Awareness Practices (MAPs) for ADHD Program. Two case study examples are provided to demonstrate relevant clinical issues for practitioners interested in this approach. Directions for future research, including mindfulness meditation as a standalone treatment and as a complementary approach to cognitive-behavioral therapy, are provided. PMID:25908900

  8. Qualitative and mixed methods research in dissemination and implementation science: introduction to the special issue.

    PubMed

    Southam-Gerow, Michael A; Dorsey, Shannon

    2014-01-01

    This special issue provides examples of how qualitative and mixed methods research approaches can be used in dissemination and implementation science. In this introductory article, we provide a brief rationale for why and how qualitative and mixed methods approaches can be useful in moving the field forward. Specifically, we provide a brief primer on common qualitative methods, including a review of guidelines provided by the National Institutes of Health. Next, we introduce the six articles in the issue. The first of the articles by Palinkas represents a more thorough and authoritative discussion related to qualitative methods, using the other five articles in the issue (and other published works) as examples. The remaining five articles are empirical and/or descriptive articles of recently completed or ongoing qualitative or mixed methods studies related to dissemination and implementation of evidence-based practices for children and adolescents.

  9. Behavioral Economics

    PubMed Central

    Niileksela, Christopher R.; Kaplan, Brent A.

    2013-01-01

    In recent years, behavioral economics has gained much attention in psychology and public policy. Despite increased interest and continued basic experimental studies, the application of behavioral economics to therapeutic settings remains relatively sparse. Using examples from both basic and applied studies, we provide an overview of the principles comprising behavioral economic perspectives and discuss implications for behavior analysts in practice. A call for further translational research is provided. PMID:25729506

  10. A Note on Multigrid Theory for Non-nested Grids and/or Quadrature

    NASA Technical Reports Server (NTRS)

    Douglas, C. C.; Douglas, J., Jr.; Fyfe, D. E.

    1996-01-01

    We provide a unified theory for multilevel and multigrid methods when the usual assumptions are not present. For example, we do not assume that the solution spaces or the grids are nested. Further, we do not assume that there is an algebraic relationship between the linear algebra problems on different levels. What we provide is a computationally useful theory for adaptively changing levels. Theory is provided for multilevel correction schemes, nested iteration schemes, and one way (i.e., coarse to fine grid with no correction iterations) schemes. We include examples showing the applicability of this theory: finite element examples using quadrature in the matrix assembly and finite volume examples with non-nested grids. Our theory applies directly to other discretizations as well.

  11. Cosmological bounce and Genesis beyond Horndeski

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

    Kolevatov, R.; Mironov, S.; Volkova, V.

    2017-08-01

    We study 'classical' bouncing and Genesis models in beyond Horndeski theory. We give an example of spatially flat bouncing solution that is non-singular and stable throughout the whole evolution. We also provide an example of stable geodesically complete Genesis with similar features. The model is arranged in such a way that the scalar field driving the cosmological evolution initially behaves like full-fledged beyond Horndeski, whereas at late times it becomes a massless scalar field minimally coupled to gravity.

  12. Rigour in qualitative case-study research.

    PubMed

    Houghton, Catherine; Casey, Dympna; Shaw, David; Murphy, Kathy

    2013-03-01

    To provide examples of a qualitative multiple case study to illustrate the specific strategies that can be used to ensure the credibility, dependability, confirmability and transferability of a study. There is increasing recognition of the valuable contribution qualitative research can make to nursing knowledge. However, it is important that the research is conducted in a rigorous manner and that this is demonstrated in the final research report. A multiple case study that explored the role of the clinical skills laboratory in preparing students for the real world of practice. Multiple sources of evidence were collected: semi-structured interviews (n=58), non-participant observations at five sites and documentary sources. Strategies to ensure the rigour of this research were prolonged engagement and persistent observation, triangulation, peer debriefing, member checking, audit trail, reflexivity, and thick descriptions. Practical examples of how these strategies can be implemented are provided to guide researchers interested in conducting rigorous case study research. While the flexible nature of qualitative research should be embraced, strategies to ensure rigour must be in place.

  13. Interpretations of virtual reality.

    PubMed

    Voiskounsky, Alexander

    2011-01-01

    University students were surveyed to learn what they know about virtual realities. The two studies were administered with a half-year interval in which the students (N=90, specializing either in mathematics and science, or in social science and humanities) were asked to name particular examples of virtual realities. The second, but not the first study, was administered after the participants had the chance to see the movie "Avatar" (no investigation was held into whether they really saw it). While the students in both studies widely believed that activities such as social networking and online gaming represent virtual realities, some other examples provided by the students in the two studies differ: in the second study the participants expressed a better understanding of the items related to virtual realities. At the same time, not a single participant reported particular psychological states (either regular or altered) as examples of virtual realities. Profound popularization efforts need to be done to acquaint the public, including college students, with virtual realities and let the public adequately understand how such systems work.

  14. Conformations of Substituted Ethanes.

    ERIC Educational Resources Information Center

    Kingsbury, Charles A.

    1979-01-01

    Reviews state-of-the-art of conformational analysis and factors which affect it. Emphasizes sp-3 hybridized acrylic molecules. Provides examples on the importance of certain factors in determining conformation. Purpose, is to provide examples for examination questions. (Author/SA)

  15. Preparing Students for the 21st Century through the Study of World Music

    ERIC Educational Resources Information Center

    Beegle, Amy Christine

    2014-01-01

    This column provides examples of activities that general music teachers might use to weave global awareness into web-based lessons to promote the development of information literacy, media literacy, and communication literacy through the study of world music.

  16. Physical Science Connected Classrooms: Case Studies

    ERIC Educational Resources Information Center

    Irving, Karen; Sanalan, Vehbi; Shirley, Melissa

    2009-01-01

    Case-study descriptions of secondary and middle school classrooms in diverse contexts provide examples of how teachers implement connected classroom technology to facilitate formative assessment in science instruction. Connected classroom technology refers to a networked system of handheld devices designed for classroom use. Teachers were…

  17. The Treatment of Propaganda in Selected Social Studies Texts.

    ERIC Educational Resources Information Center

    Fleming, Dan B.

    1985-01-01

    A survey found that secondary U.S. history textbooks provided the most coverage of propaganda and included the largest number of examples for student analysis. Very little coverage of propaganda was found in world geography and world history texts. A few government texts provided excellent coverage, but most gave the subject little attention. (RM)

  18. Bridging the Gap between Theory and Practice in Educational Research: Methods at the Margins

    ERIC Educational Resources Information Center

    Winkle-Wagner, Rachelle, Ed.; Hunter, Cheryl A., Ed.; Ortloff, Debora Hinderliter, Ed.

    2009-01-01

    This book provides new ways of thinking about educational processes, using quantitative and qualitative methodologies. Concrete examples of research techniques are provided for those conducting research with marginalized populations or about marginalized ideas. This volume asserts theoretical models related to research methods and the study of…

  19. Evidence-Based Practice for Children with Speech Sound Disorders: Part 1 Narrative Review

    ERIC Educational Resources Information Center

    Baker, Elise; McLeod, Sharynne

    2011-01-01

    Purpose: This article provides a comprehensive narrative review of intervention studies for children with speech sound disorders (SSD). Its companion paper (Baker & McLeod, 2011) provides a tutorial and clinical example of how speech-language pathologists (SLPs) can engage in evidence-based practice (EBP) for this clinical population. Method:…

  20. A CASE STUDY DEMONSTRATING U.S. EPA GUIDANCE FOR EVALUATING LANDFILL GAS EMISSIONS FROM CLOSED OR ABANDONED FACILITIES--BUSH VALLEY LANDFILL, HARFORD COUNTY, MARYLAND

    EPA Science Inventory

    The purpose of the activities described in this document is to provide a demonstration of the procedures and methodologies described within the "Guidance for Evaluating Landfill Gas Emissions from Closed or Abandoned Facilities" (Guidance). This demonstration provides an example ...

  1. An Integrated Approach to Developing and Implementing Learning-Centred Curricula

    ERIC Educational Resources Information Center

    Hubball, Harry; Burt, Helen

    2004-01-01

    The purpose of this article is to provide a critical review of the motivating factors, processes and outcomes pertaining to learning-centred curriculum reform in higher education. A case study example is provided from the Faculty of Pharmaceutical Sciences at the University of British Columbia. Although academic units on university campuses tend…

  2. A Note on Complementary Medicines

    MedlinePlus

    ... Photo: iStock Herbal supplements, meditation, chiropractic manipulation, and acupuncture are types of complementary and alternative medicine (CAM) ... effective. For example, NCCAM studies have shown that: Acupuncture can provide pain relief and improve function for ...

  3. Teaching hearing science to undergraduate nonscientists

    NASA Astrophysics Data System (ADS)

    Weiler, Ernest M.; Boyce, Suzanne; Steger, Joseph

    2003-04-01

    For those students interested in potential clinical careers in Speech Pathology, or Audiology, a knowledge of some of the scientific bases is important, but should not create a distaste for science. The authors have addressed themselves to these goals: (1) calculation of period, Hz, summation of two sine waves, phase and dB; (2) anticipating undergraduate Speech Science; (3) simple examples of hearing pathology; and (4) basic psycho-acoustical issues. The classic material of Harry Helson was used to elucidate issues of context in experimental science, and that of S.S. Stevens was used to exemplify psycho-acoustical formulas of common use. Four texts that have been tried on approximately 200 students were evaluated. Surprisingly, the best provided the fewest formulas, short study questions with answers, good examples, and a list of common terms. The next best was aimed at slightly more advanced students, but each chapter contained introductory material, examples, and definitions suitable for naïve undergraduates. The least satisfactory text provided excerpts of technical material with abrupt transitions, no examples, and only part of the definitions needed for the naïve student. Perhaps the most difficult teaching issue is to avoid demanding graduate-level science from those undergraduates with clinical aspirations.

  4. 26 CFR 53.4958-4 - Excess benefit transaction.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... meaning of paragraph (a)(2)(ii)(B) of this section) are taken into account. For example, in determining... a significant business purpose or exempt purpose of its own. (iv) Examples. The following examples illustrate when economic benefits are provided indirectly under the rules of this paragraph (a)(2): Example 1...

  5. 26 CFR 53.4958-4 - Excess benefit transaction.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... meaning of paragraph (a)(2)(ii)(B) of this section) are taken into account. For example, in determining... a significant business purpose or exempt purpose of its own. (iv) Examples. The following examples illustrate when economic benefits are provided indirectly under the rules of this paragraph (a)(2): Example 1...

  6. 26 CFR 53.4958-4 - Excess benefit transaction.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... meaning of paragraph (a)(2)(ii)(B) of this section) are taken into account. For example, in determining... a significant business purpose or exempt purpose of its own. (iv) Examples. The following examples illustrate when economic benefits are provided indirectly under the rules of this paragraph (a)(2): Example 1...

  7. 26 CFR 53.4958-4 - Excess benefit transaction.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... meaning of paragraph (a)(2)(ii)(B) of this section) are taken into account. For example, in determining... a significant business purpose or exempt purpose of its own. (iv) Examples. The following examples illustrate when economic benefits are provided indirectly under the rules of this paragraph (a)(2): Example 1...

  8. 26 CFR 53.4958-4 - Excess benefit transaction.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... meaning of paragraph (a)(2)(ii)(B) of this section) are taken into account. For example, in determining... a significant business purpose or exempt purpose of its own. (iv) Examples. The following examples illustrate when economic benefits are provided indirectly under the rules of this paragraph (a)(2): Example 1...

  9. Using Learner Generated Examples to Introduce New Concepts

    ERIC Educational Resources Information Center

    Watson, Anne; Shipman, Steve

    2008-01-01

    In this paper we describe learners being asked to generate examples of new mathematical concepts, thus developing and exploring example spaces. First we elaborate the theoretical background for learner generated examples (LGEs) in learning new concepts. The data we then present provides evidence of the possibility of learning new concepts through…

  10. Evaluating Research Articles from Start to Finish.

    ERIC Educational Resources Information Center

    Girden, Ellen R.

    This book in intended to train students in reading a research report critically. It uses actual research articles as examples including both good and flawed studies in each category and provides interpretation and evaluation of the appropriateness of the statistical analyses in each study. Individual chapters usually include two sample studies and…

  11. A Study of Female Life in Mauritania.

    ERIC Educational Resources Information Center

    Abeille, Barbara

    A 3-month pilot study conducted from April-June 1979 with 16 major informants provides information for constructing a preliminary model of female life in Mauritania. An introduction gives definitions for terms used differently in Mauritania (tribe, ethnic group, and class) and discusses examples of each. The study (based mainly on repeated…

  12. The problem of pseudoreplication in neuroscientific studies: is it affecting your analysis?

    PubMed Central

    2010-01-01

    Background Pseudoreplication occurs when observations are not statistically independent, but treated as if they are. This can occur when there are multiple observations on the same subjects, when samples are nested or hierarchically organised, or when measurements are correlated in time or space. Analysis of such data without taking these dependencies into account can lead to meaningless results, and examples can easily be found in the neuroscience literature. Results A single issue of Nature Neuroscience provided a number of examples and is used as a case study to highlight how pseudoreplication arises in neuroscientific studies, why the analyses in these papers are incorrect, and appropriate analytical methods are provided. 12% of papers had pseudoreplication and a further 36% were suspected of having pseudoreplication, but it was not possible to determine for certain because insufficient information was provided. Conclusions Pseudoreplication can undermine the conclusions of a statistical analysis, and it would be easier to detect if the sample size, degrees of freedom, the test statistic, and precise p-values are reported. This information should be a requirement for all publications. PMID:20074371

  13. 75 FR 76432 - Privacy Act of 1974; System of Records

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-08

    ... evidence of that relationship. For example, such parent or legal guardian may provide a copy of a divorce... evidence of that relationship. For example, such parent or legal guardian may provide a copy of a divorce...

  14. System and method for leveraging human physiological traits to control microprocessor frequency

    DOEpatents

    Shye, Alex; Pan, Yan; Scholbrock, Benjamin; Miller, J. Scott; Memik, Gokhan; Dinda, Peter A; Dick, Robert P

    2014-03-25

    A system and method for leveraging physiological traits to control microprocessor frequency are disclosed. In some embodiments, the system and method may optimize, for example, a particular processor-based architecture based on, for example, end user satisfaction. In some embodiments, the system and method may determine, for example, whether their users are satisfied to provide higher efficiency, improved reliability, reduced power consumption, increased security, and a better user experience. The system and method may use, for example, biometric input devices to provide information about a user's physiological traits to a computer system. Biometric input devices may include, for example, one or more of the following: an eye tracker, a galvanic skin response sensor, and/or a force sensor.

  15. Integrating Classical Music into the Elementary Social Studies Curriculum.

    ERIC Educational Resources Information Center

    Bracken, Khlare R.

    1997-01-01

    Provides a rationale for using classical music as the basis of interdisciplinary units in elementary social studies. Recommends beginning with a series of humorous pieces to familiarize students with classical music. Includes many examples for utilizing pieces related to geography and history. (MJP)

  16. Noncovalent Organocatalysis Based on Hydrogen Bonding: Elucidation of Reaction Paths by Computational Methods

    NASA Astrophysics Data System (ADS)

    Etzenbach-Effers, Kerstin; Berkessel, Albrecht

    In this article, the functions of hydrogen bonds in organocatalytic reactions are discussed on atomic level by presenting DFT studies of selected examples. Theoretical investigation provides a detailed insight in the mechanism of substrate activation and orientation, and the stabilization of transition states and intermediates by hydrogen bonding (e.g. oxyanion hole). The examples selected comprise stereoselective catalysis by bifunctional thioureas, solvent catalysis by fluorinated alcohols in epoxidation by hydrogen peroxide, and intramolecular cooperative hydrogen bonding in TADDOL-type catalysts.

  17. Elementary education preservice teachers' understanding of biotechnology and its related processes.

    PubMed

    Chabalengula, Vivien Mweene; Mumba, Frackson; Chitiyo, Jonathan

    2011-07-01

    This study examined preservice teachers' understanding of biotechnology and its related processes. A sample comprised 88 elementary education preservice teachers at a large university in the Midwest of the USA. A total of 60 and 28 of the participants were enrolled in introductory and advanced science methods courses, respectively. Most participants had taken two integrated science courses at the college level. Data were collected using a questionnaire, which had open-ended items and which required participants to write the definitions and examples of the following terms: biotechnology, genetic engineering, cloning and genetically modified foods. The results indicate that preservice teachers had limited understanding of biotechnology and its related processes. The majority of the preservice teachers provided poor definitions, explanations, and examples of biotechnology, genetic engineering and genetically modified foods. Surprisingly, however, a moderate number of preservice teachers correctly defined cloning and provided correct examples of cloning. Implications for science teacher education, science curriculum, as well as recommendations for further research are discussed. Copyright © 2011 Wiley Periodicals, Inc.

  18. Measurement invariance, the lack thereof, and modeling change.

    PubMed

    Edwards, Michael C; Houts, Carrie R; Wirth, R J

    2017-08-17

    Measurement invariance issues should be considered during test construction. In this paper, we provide a conceptual overview of measurement invariance and describe how the concept is implemented in several different statistical approaches. Typical applications look for invariance over things such as mode of administration (paper and pencil vs. computer based), language/translation, age, time, and gender, to cite just a few examples. To the extent that the relationships between items and constructs are stable/invariant, we can be more confident in score interpretations. A series of simulated examples are reported which highlight different kinds of non-invariance, the impact it can have, and the effect of appropriately modeling a lack of invariance. One example focuses on the longitudinal context, where measurement invariance is critical to understanding trends over time. Software syntax is provided to help researchers apply these models with their own data. The simulation studies demonstrate the negative impact an erroneous assumption of invariance may have on scores and substantive conclusions drawn from naively analyzing those scores. Measurement invariance implies that the links between the items and the construct of interest are invariant over some domain, grouping, or classification. Examining a new or existing test for measurement invariance should be part of any test construction/implementation plan. In addition to reviewing implications of the simulation study results, we also provide a discussion of the limitations of current approaches and areas in need of additional research.

  19. Theoretical studies on bimolecular reaction dynamics

    PubMed Central

    Clary, David C.

    2008-01-01

    This perspective discusses progress in the theory of bimolecular reaction dynamics in the gas phase. The examples selected show that definitive quantum dynamical computations are providing insights into the detailed mechanisms of chemical reactions. PMID:18626015

  20. Gross Motor Activities: Movement for Fun and Learning.

    ERIC Educational Resources Information Center

    Lowenthal, Barbara

    1983-01-01

    Examples are provided of ways in which gross motor activities are integrated into mathematics, language arts, social studies, art, and music and creative movement concepts for preschool- and primary-age children with special needs. (CL)

  1. Scaffolding Meta-Cognitive Skills for Effective Analogical Problem Solving via Tailored Example Selection

    ERIC Educational Resources Information Center

    Muldner, Kasia; Conati, Cristina

    2010-01-01

    Although worked-out examples play a key role in cognitive skill acquisition, research demonstrates that students have various levels of meta-cognitive abilities for using examples effectively. The Example Analogy (EA)-Coach is an Intelligent Tutoring System that provides adaptive support to foster meta-cognitive behaviors relevant to a specific…

  2. Diffraction Studies from Minerals to Organics - Lessons Learned from Materials Analyses

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

    Whitfield, Pamela S

    2014-01-01

    In many regards the study of materials and minerals by powder diffraction techniques are complimentary, with techniques honed in one field equally applicable to the other. As a long-time materials researcher many of the examples are of techniques developed for materials analysis applied to minerals. However in a couple of cases the study of new minerals was the initiation into techniques later used in materials-based studies. Hopefully they will show that the study of new minerals structures can provide opportunities to add new methodologies and approaches to future problems. In keeping with the AXAA many of the examples have anmore » Australian connection, the materials ranging from organics to battery materials.« less

  3. MicroRNAs show a wide diversity of expression profiles in the developing and mature central nervous system

    PubMed Central

    Kapsimali, Marika; Kloosterman, Wigard P; de Bruijn, Ewart; Rosa, Frederic; Plasterk, Ronald HA; Wilson, Stephen W

    2007-01-01

    Background MicroRNA (miRNA) encoding genes are abundant in vertebrate genomes but very few have been studied in any detail. Bioinformatic tools allow prediction of miRNA targets and this information coupled with knowledge of miRNA expression profiles facilitates formulation of hypotheses of miRNA function. Although the central nervous system (CNS) is a prominent site of miRNA expression, virtually nothing is known about the spatial and temporal expression profiles of miRNAs in the brain. To provide an overview of the breadth of miRNA expression in the CNS, we performed a comprehensive analysis of the neuroanatomical expression profiles of 38 abundant conserved miRNAs in developing and adult zebrafish brain. Results Our results show miRNAs have a wide variety of different expression profiles in neural cells, including: expression in neuronal precursors and stem cells (for example, miR-92b); expression associated with transition from proliferation to differentiation (for example, miR-124); constitutive expression in mature neurons (miR-124 again); expression in both proliferative cells and their differentiated progeny (for example, miR-9); regionally restricted expression (for example, miR-222 in telencephalon); and cell-type specific expression (for example, miR-218a in motor neurons). Conclusion The data we present facilitate prediction of likely modes of miRNA function in the CNS and many miRNA expression profiles are consistent with the mutual exclusion mode of function in which there is spatial or temporal exclusion of miRNAs and their targets. However, some miRNAs, such as those with cell-type specific expression, are more likely to be co-expressed with their targets. Our data provide an important resource for future functional studies of miRNAs in the CNS. PMID:17711588

  4. Integrating 3D Printing into an Early Childhood Teacher Preparation Course: Reflections on Practice

    ERIC Educational Resources Information Center

    Sullivan, Pamela; McCartney, Holly

    2017-01-01

    This reflection on practice describes a case study integrating 3D printing into a creativity course for preservice teachers. The theoretical rationale is discussed, and the steps for integration are outlined. Student responses and reflections on the experience provide the basis for our analysis. Examples and resources are provided, as well as a…

  5. Creating Safe Neighborhoods, Safe Streets, Safe Schools, [and] Safe Workplaces: Using Illinois' Drug Laws.

    ERIC Educational Resources Information Center

    Illinois Criminal Justice Information Authority, Chicago.

    This handbook provides renters, homeowners, teachers, parents, and workers with tools for ridding their communities of illegal drugs. The booklet describes relevant anti-drug laws, and provides examples of how they are being used successfully in one state. The case studies cited almost always involve individuals and community groups working…

  6. Evaluations of Firms and Professionals Who Provide Consumer Services. An Annotated Bibliography of Consumer Services.

    ERIC Educational Resources Information Center

    Jackson, Gregg B.; Meyer, Francine H.

    This annotated bibliography contains summaries of studies of consumer services in 39 fields, plus summaries of publications of interest to consumer advocates, published during the past 10 years. Since most service providers do business in a single locale, the evaluations are usually local in scope (for example, a comparison of major appliance…

  7. Visualizing Social Justice: Using Controversial Images in Social Studies Classrooms

    ERIC Educational Resources Information Center

    Hawley, Todd S.; Crowe, Alicia R.; Mooney, Evan

    2016-01-01

    In this article, we promote the use of controversial images to enhance the discussion of social justice issues in schools. Controversial images provide rich opportunities for students to question what is occurring currently in society as well as what has occurred in the past. We provide an example set of activities to be used in teacher education…

  8. Game Theory in the Social Studies Classroom

    ERIC Educational Resources Information Center

    Vesperman, Dean Patrick; Clark, Chris H.

    2016-01-01

    This article explores using game theory in social studies classrooms as a heuristic to aid students in understanding strategic decision making. The authors provide examples of several simple games teachers can use. Next, we address how to help students design their own simple (2 × 2) games.

  9. Technology and the Social Studies--Where We Were; Where We Are, Where We Are Going...

    ERIC Educational Resources Information Center

    Mead-Mezzetta, Shirley

    1986-01-01

    Reviews the goals of the California State Department of Education's Technology in Curriculum (TIC) projects. Provides several examples of technology use and identifies several pieces of software which are being successfully used in high school social studies classes. (JDH)

  10. The Causal Effects of Cultural Relevance: Evidence from an Ethnic Studies Curriculum

    ERIC Educational Resources Information Center

    Dee, Thomas S.; Penner, Emily K.

    2017-01-01

    An extensive theoretical and qualitative literature stresses the promise of instructional practices and content aligned with minority students' experiences. Ethnic studies courses provide an example of such "culturally relevant pedagogy" (CRP). Despite theoretical support, quantitative evidence on the effectiveness of these courses is…

  11. Understanding Qualitative Research: A School Nurse Perspective

    ERIC Educational Resources Information Center

    Broussard, Lisa

    2006-01-01

    More school nurses are engaging in the generation of research, and their studies increasingly are using qualitative methods to describe various areas of practice. This article provides an overview of 4 major qualitative methods: ethnography, phenomenology, grounded theory, and historical research. Examples of school nursing research studies that…

  12. A case study : Chart II software upgrade, using a design competition to procure ITS software

    DOT National Transportation Integrated Search

    2000-03-01

    This is one of a series of case studies that examine procurement approaches used to deliver Intelligent Transportation System (ITS) projects. The purpose of these reports is to provide examples of successful strategies that have been used to overcome...

  13. Illustrated Examples of the Effects of Risk Preferences and Expectations on Bargaining Outcomes.

    ERIC Educational Resources Information Center

    Dickinson, David L.

    2003-01-01

    Describes bargaining examples that use expected utility theory. Provides example results that are intuitive, shown graphically and algebraically, and offer upper-level student samples that illustrate the usefulness of the expected utility theory. (JEH)

  14. Utility of a Conceptual Framework within Doctoral Study: A Researcher's Reflections

    ERIC Educational Resources Information Center

    Berman, Jeanette

    2013-01-01

    The author of this paper provides an example of a conceptual framework that supported her doctoral study and written dissertation in the field of educational psychology. The study was carried out prior to the more recent explicit emphasis on conceptual frameworks in postgraduate research texts and academic literature. The instigation for the…

  15. Women's Studies in the Community College. Women's Studies Monograph Series.

    ERIC Educational Resources Information Center

    Elovson, Allana

    As part of a series dealing with national trends in women's education, this monograph examines the development of women's studies programs at the community college level and provides suggestions to increase their impact. The monograph first discusses the changes in the community college population, for example, in the male/female ratio and in…

  16. Guidelines for the Bioremediation of Oil-Contaminated Salt Marshes

    EPA Pesticide Factsheets

    This document includes a review and critique of the literature and theories pertinent to oil biodegradation and nutrient dynamics and provides examples of bioremediation options and case studies of oil bioremediation in coastal wetland environments.

  17. A “SMART” Design for Building Individualized Treatment Sequences

    PubMed Central

    Lei, H.; Nahum-Shani, I.; Lynch, K.; Oslin, D.; Murphy, S.A.

    2013-01-01

    Interventions often involve a sequence of decisions. For example, clinicians frequently adapt the intervention to an individual’s outcomes. Altering the intensity and type of intervention over time is crucial for many reasons, such as to obtain improvement if the individual is not responding or to reduce costs and burden when intensive treatment is no longer necessary. Adaptive interventions utilize individual variables (severity, preferences) to adapt the intervention and then dynamically utilize individual outcomes (response to treatment, adherence) to readapt the intervention. The Sequential Multiple Assignment Randomized Trial (SMART)provides high-quality data that can be used to construct adaptive interventions. We review the SMART and highlight its advantages in constructing and revising adaptive interventions as compared to alternative experimental designs. Selected examples of SMART studies are described and compared. A data analysis method is provided and illustrated using data from the Extending Treatment Effectiveness of Naltrexone SMART study. PMID:22224838

  18. Power dissipation in fractal AC circuits

    NASA Astrophysics Data System (ADS)

    Chen, Joe P.; Rogers, Luke G.; Anderson, Loren; Andrews, Ulysses; Brzoska, Antoni; Coffey, Aubrey; Davis, Hannah; Fisher, Lee; Hansalik, Madeline; Loew, Stephen; Teplyaev, Alexander

    2017-08-01

    We extend Feynman’s analysis of an infinite ladder circuit to fractal circuits, providing examples in which fractal circuits constructed with purely imaginary impedances can have characteristic impedances with positive real part. Using (weak) self-similarity of our fractal structures, we provide algorithms for studying the equilibrium distribution of energy on these circuits. This extends the analysis of self-similar resistance networks introduced by Fukushima, Kigami, Kusuoka, and more recently studied by Strichartz et al.

  19. Using Framework Analysis in nursing research: a worked example.

    PubMed

    Ward, Deborah J; Furber, Christine; Tierney, Stephanie; Swallow, Veronica

    2013-11-01

    To demonstrate Framework Analysis using a worked example and to illustrate how criticisms of qualitative data analysis including issues of clarity and transparency can be addressed. Critics of the analysis of qualitative data sometimes cite lack of clarity and transparency about analytical procedures; this can deter nurse researchers from undertaking qualitative studies. Framework Analysis is flexible, systematic, and rigorous, offering clarity, transparency, an audit trail, an option for theme-based and case-based analysis and for readily retrievable data. This paper offers further explanation of the process undertaken which is illustrated with a worked example. Data were collected from 31 nursing students in 2009 using semi-structured interviews. The data collected are not reported directly here but used as a worked example for the five steps of Framework Analysis. Suggestions are provided to guide researchers through essential steps in undertaking Framework Analysis. The benefits and limitations of Framework Analysis are discussed. Nurses increasingly use qualitative research methods and need to use an analysis approach that offers transparency and rigour which Framework Analysis can provide. Nurse researchers may find the detailed critique of Framework Analysis presented in this paper a useful resource when designing and conducting qualitative studies. Qualitative data analysis presents challenges in relation to the volume and complexity of data obtained and the need to present an 'audit trail' for those using the research findings. Framework Analysis is an appropriate, rigorous and systematic method for undertaking qualitative analysis. © 2013 Blackwell Publishing Ltd.

  20. Group-Based Active Learning of Classification Models.

    PubMed

    Luo, Zhipeng; Hauskrecht, Milos

    2017-05-01

    Learning of classification models from real-world data often requires additional human expert effort to annotate the data. However, this process can be rather costly and finding ways of reducing the human annotation effort is critical for this task. The objective of this paper is to develop and study new ways of providing human feedback for efficient learning of classification models by labeling groups of examples. Briefly, unlike traditional active learning methods that seek feedback on individual examples, we develop a new group-based active learning framework that solicits label information on groups of multiple examples. In order to describe groups in a user-friendly way, conjunctive patterns are used to compactly represent groups. Our empirical study on 12 UCI data sets demonstrates the advantages and superiority of our approach over both classic instance-based active learning work, as well as existing group-based active-learning methods.

  1. ATK Launch Systems Engineering NASA Programs Engineering Examples

    NASA Technical Reports Server (NTRS)

    Richardson, David

    2007-01-01

    This presentation provides an overview of the work done at ATK Launch Systems with and indication of how engineering knowledge can be applied to several real world problems. All material in the presentation has been screened to meet ITAR restrictions. The information provided is a compilation of general engineering knowledge and material available in the public domain. The presentation provides an overview of ATK Launch Systems and NASA programs. Some discussion is provided about the types of engineering conducted at the Promontory plant with added detail about RSRM nozzle engineering. Some brief examples of examples of nozzle technical issues with regard to adhesives and phenolics are shared. These technical issue discussions are based on material available in the public domain.

  2. Reliability-based structural optimization: A proposed analytical-experimental study

    NASA Technical Reports Server (NTRS)

    Stroud, W. Jefferson; Nikolaidis, Efstratios

    1993-01-01

    An analytical and experimental study for assessing the potential of reliability-based structural optimization is proposed and described. In the study, competing designs obtained by deterministic and reliability-based optimization are compared. The experimental portion of the study is practical because the structure selected is a modular, actively and passively controlled truss that consists of many identical members, and because the competing designs are compared in terms of their dynamic performance and are not destroyed if failure occurs. The analytical portion of this study is illustrated on a 10-bar truss example. In the illustrative example, it is shown that reliability-based optimization can yield a design that is superior to an alternative design obtained by deterministic optimization. These analytical results provide motivation for the proposed study, which is underway.

  3. Bruner's Three Forms of Representation Revisited: Action, Pictures and Words for Effective Computer Instruction.

    ERIC Educational Resources Information Center

    Presno, Caroline

    1997-01-01

    Discusses computer instruction in light of Bruner's theory of three forms of representation (action, icons, and symbols). Examines how studies regarding Paivio's dual-coding theory and studies focusing on procedural knowledge support Bruner's theory. Provides specific examples for instruction in three categories: demonstrations, pictures and…

  4. Indexing the Comics: A Librarian's Perspective on Comics Research.

    ERIC Educational Resources Information Center

    Scott, Randall W.

    The potential for computers in indexing popular fiction study materials is discussed, and specific examples of comic book indexing are provided through descriptions of projects and a bibliography. The 4-stage evolutionary development of popular fiction studies includes: (1) discovery and reading; (2) bibliography and collecting; (3) cataloging and…

  5. Influence of Sea Surface Temperature, Tropospheric Humidity and Lapse Rate on the Annual Cycle of the Clear-Sky Greenhouse Effect

    NASA Technical Reports Server (NTRS)

    Hu, H.; Liu, W.

    2000-01-01

    The implication of this work will provide modeling study a surrogate of annual cycle of the greenhouse effect. For example, the model should be able to simulate the annual cycle before it can be used for global change study.

  6. The Complete Guide to Training Delivery: A Competency-Based Approach.

    ERIC Educational Resources Information Center

    King, Stephen B.; King, Marsha; Rothwell, William J.

    This guide focuses on 14 instructor competencies identified by the International Board of Standards for Training, Performance, and Instruction. It provides examples, job aids, worksheets, case studies, and sample dialogs and contains actual experiences and critical incidents faced by trainers who participated in the survey study. Strategies to…

  7. NREL: International Activities - Global Partnerships

    Science.gov Websites

    specific examples of technical assistance provided by NREL, see entries on the Bilateral Partnerships page Integration Study NREL is supporting collaborative work across the governments of Canada, Mexico, and the conducting a regional grid integration study for South Asian countries. UN Environment NREL partners with UN

  8. Hydrogen Maps | Geospatial Data Science | NREL

    Science.gov Websites

    Hydrogen Maps Hydrogen Maps This collection of U.S. hydrogen maps provides examples of how : Milestone Report, NREL Technical Report (2006) Hydrogen Potential from Renewable Energy Resources This study Technical Report (2007) Hydrogen Potential from Coal, Natural Gas, Nuclear, and Hydro Resources This study

  9. Insurance: Pupils' Pamphlet. II C.

    ERIC Educational Resources Information Center

    University of the South Pacific, Suva (Fiji).

    The document presents a study guide for students learning insurance protection and the various types of insurance businesses. The pupils' pamphlet is to be used in coordination with the teacher's guide. Case studies, worksheets, description of basic principles, and examples of policy forms are provided for the different types of insurance: (1)…

  10. Chimney Perching Behavior in Birds: A Practical Urban Field Study Investigating the Relationship between Biology and Meteorology.

    ERIC Educational Resources Information Center

    Stamm, Alfred J.; And Others

    1993-01-01

    The study of starlings in the urban environment integrates nervous regulation, the senses, and animal behavior, while also providing an excellent example of how the biology of an animal is related to the demands of the physical environment. (PR)

  11. A Case Study Using Child-Centered Play Therapy Approach to Treat Enuresis and Encopresis.

    ERIC Educational Resources Information Center

    Cuddy-Casey, Maria

    1997-01-01

    Demonstrates an alternative method (nondirective child-centered therapy) in treating enuresis and encopresis resulting from emotional disturbances. Examines various etiologies and approaches to treating these conditions. Provides a case study example. Claims that professionals must differentiate between primary and secondary occurrences of these…

  12. Watershed modeling applications in south Texas

    USGS Publications Warehouse

    Pedraza, Diana E.; Ockerman, Darwin J.

    2012-01-01

    This fact sheet presents an overview of six selected watershed modeling studies by the USGS and partners that address a variety of water-resource issues in south Texas. These studies provide examples of modeling applications and demonstrate the usefulness and versatility of watershed models in aiding the understanding of hydrologic systems.

  13. Accumulating Knowledge: When Are Reading Intervention Results Meaningful?

    ERIC Educational Resources Information Center

    Fletcher, Jack M.; Wagner, Richard K.

    2014-01-01

    The three target articles provide examples of intervention studies that are excellent models for the field. They rely on rigorous and elegant designs, the interventions are motivated by attention to underlying theoretical mechanisms, and longitudinal designs are used to examine the duration of effects of interventions that occur. When studies are…

  14. Semiconductor Research Corporation: A Case Study in Cooperative Innovation Partnerships

    ERIC Educational Resources Information Center

    Logar, Nathaniel; Anadon, Laura Diaz; Narayanamurti, Venkatesh

    2014-01-01

    In the study of innovation institutions, it is important to consider how different institutional models can affect a research organization in conducting or funding successful work. As an industry collaborative, Semiconductor Research Corporation (SRC) provides an example of a privately funded institution that leverages the inputs of several member…

  15. Compilation of Class Size Findings: Grade Level, School, and District.

    ERIC Educational Resources Information Center

    Miller-Whitehead, Marie

    This study provides an overview of class size research, examples of various class size and pupil-teacher-ratio (PTR) configurations commonly used by practitioners, and the most recent findings of scientifically controlled experimental Tennessee STAR studies. The learning environment is hierarchical in nature, with student-level data influenced by…

  16. RNA structures as mediators of neurological diseases and as drug targets

    PubMed Central

    Bernat, Viachaslau; Disney, Matthew D.

    2015-01-01

    RNAs adopt diverse folded structures that are essential for function and thus play critical roles in cellular biology. A striking example of this is the ribosome, a complex, three-dimensionally folded macromolecular machine that orchestrates protein synthesis. Advances in RNA biochemistry, structural and molecular biology, and bioinformatics have revealed other non-coding RNAs whose functions are dictated by their structure. It is not surprising that aberrantly folded RNA structures contribute to disease. In this review, we provide a brief introduction into RNA structural biology and then describe how RNA structures function in cells and cause or contribute to neurological disease. Finally, we highlight successful applications of rational design principles to provide chemical probes and lead compounds targeting structured RNAs. Based on several examples of well-characterized RNA-driven neurological disorders, we demonstrate how designed small molecules can facilitate study of RNA dysfunction, elucidating previously unknown roles for RNA in disease, and provide lead therapeutics. PMID:26139368

  17. Forensic engineering: applying materials and mechanics principles to the investigation of product failures.

    PubMed

    Hainsworth, S V; Fitzpatrick, M E

    2007-06-01

    Forensic engineering is the application of engineering principles or techniques to the investigation of materials, products, structures or components that fail or do not perform as intended. In particular, forensic engineering can involve providing solutions to forensic problems by the application of engineering science. A criminal aspect may be involved in the investigation but often the problems are related to negligence, breach of contract, or providing information needed in the redesign of a product to eliminate future failures. Forensic engineering may include the investigation of the physical causes of accidents or other sources of claims and litigation (for example, patent disputes). It involves the preparation of technical engineering reports, and may require giving testimony and providing advice to assist in the resolution of disputes affecting life or property.This paper reviews the principal methods available for the analysis of failed components and then gives examples of different component failure modes through selected case studies.

  18. The post-stroke rehabilitation outcomes project.

    PubMed

    Jette, Alan M

    2005-12-01

    Jette AM. The Post-Stroke Rehabilitation Outcomes Project. The Post-Stroke Rehabilitation Outcomes Project (PSROP) provides an important example of the value of observational study designs in rehabilitation. The strength of the PSROP lies in the extensive, in-depth data collected on the specific rehabilitation interventions provided to patients and their relationship to short-term outcomes as well as the wide generalizability of the study's findings. Although providing valuable insights, one has to be extremely cautious in drawing direct practice recommendations from the PSROP given several internal validity threats inherent in the PSROP design.

  19. Improving the Usefulness and Use of Patient Survey Programs: National Health Service Interview Study

    PubMed Central

    Darzi, Ara; Gancarczyk, Sarah; Mayer, Erik

    2018-01-01

    Background A growing body of evidence suggests a concerning lag between collection of patient experience data and its application in service improvement. This study aims to identify what health care staff perceive to be the barriers and facilitators to using patient-reported feedback and showcase successful examples of doing so. Objective This study aimed to apply a systems perspective to suggest policy improvements that could support efforts to use data on the frontlines. Methods Qualitative interviews were conducted in eight National Health Service provider locations in the United Kingdom, which were selected based on National Inpatient Survey scores. Eighteen patient-experience leads were interviewed about using patient-reported feedback with relevant staff. Interviews were transcribed and underwent thematic analysis. Staff-identified barriers and facilitators to using patient experience feedback were obtained. Results The most frequently cited barriers to using patient reported feedback pertained to interpreting results, understanding survey methodology, presentation of data in both national Care Quality Commission and contractor reports, inability to link data to other sources, and organizational structure. In terms of a wish list for improved practice, staff desired more intuitive survey methodologies, the ability to link patient experience data to other sources, and more examples of best practice in patient experience improvement. Three organizations also provided examples of how they successfully used feedback to improve care. Conclusions Staff feedback provides a roadmap for policy makers to reconsider how data is collected and whether or not the national regulations on surveys and patient experience data are meeting the quality improvement needs of local organizations. PMID:29691207

  20. Making It Better: Research, Assessment, and Recursive Learning Cycles

    ERIC Educational Resources Information Center

    Brookover, Robert; Timmerman, Danielle

    2013-01-01

    This article provides case study examples of how assessment efforts led to and have been enhanced by the creation of integrated curriculum delivery models in parks, recreation, and tourism programs at Clemson University and the University of Utah.

  1. 48 CFR 1845.7101-1 - Property classification.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... aeronautical and space programs, which are capable of stand-alone operation. Examples include research aircraft... characteristics. (ii) Examples of NASA heritage assets include buildings and structures designated as National...., it no longer provides service to NASA operations). Examples of obsolete property are items in...

  2. 48 CFR 1845.7101-1 - Property classification.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... aeronautical and space programs, which are capable of stand-alone operation. Examples include research aircraft... characteristics. (ii) Examples of NASA heritage assets include buildings and structures designated as National...., it no longer provides service to NASA operations). Examples of obsolete property are items in...

  3. 48 CFR 1845.7101-1 - Property classification.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... aeronautical and space programs, which are capable of stand-alone operation. Examples include research aircraft... characteristics. (ii) Examples of NASA heritage assets include buildings and structures designated as National...., it no longer provides service to NASA operations). Examples of obsolete property are items in...

  4. 48 CFR 1845.7101-1 - Property classification.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... aeronautical and space programs, which are capable of stand-alone operation. Examples include research aircraft... characteristics. (ii) Examples of NASA heritage assets include buildings and structures designated as National...., it no longer provides service to NASA operations). Examples of obsolete property are items in...

  5. 48 CFR 1845.7101-1 - Property classification.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... aeronautical and space programs, which are capable of stand-alone operation. Examples include research aircraft... characteristics. (ii) Examples of NASA heritage assets include buildings and structures designated as National...., it no longer provides service to NASA operations). Examples of obsolete property are items in...

  6. Gaps of operators

    NASA Astrophysics Data System (ADS)

    Jung, Il Bong; Lim, Pil Sang; Park, Sang Soo

    2005-04-01

    We construct examples which distinguish clearly the classes of p-hyponormal operators for 0

  7. Design and Usability Assessment of a Dialogue-Based Cognitive Tutoring System to Model Expert Problem Solving in Research Design

    ERIC Educational Resources Information Center

    Hung, Wei-Chen; Smith, Thomas J.; Smith, M. Cecil

    2015-01-01

    Technology provides the means to create useful learning and practice environments for learners. Well-designed cognitive tutor systems, for example, can provide appropriate learning environments that feature cognitive supports (ie, scaffolding) for students to increase their procedural knowledge. The purpose of this study was to conduct a series of…

  8. Co-adapting societal and ecological interactions following large disturbances in urban park woodlands

    Treesearch

    Margaret Carreiro; Wayne Zipperer

    2011-01-01

    The responses of urban park woodlands to large disturbances provide the opportunity to identify and examine linkages in social-ecological systems in urban landscapes.We propose that the Panarchy model consisting of hierarchically nested adaptive cycles provides a useful framework to evaluate those linkages.We use two case studies as examples – Cherokee Park in...

  9. Social network analyzer on the example of Twitter

    NASA Astrophysics Data System (ADS)

    Gorodetskaia, Mariia; Khruslova, Diana

    2017-09-01

    Social networks are powerful sources of data due to their popularity. Twitter is one of the networks providing a lot of data. There is need to collect this data for future usage from linguistics to SMM and marketing. The report examines the existing software solutions and provides new ones. The study includes information about the software developed. Some future features are listed.

  10. Basal Area Growth Estimators for Survivor Component: A Quality Control Application

    Treesearch

    Charles E. Thomas; Francis A. Roesch

    1990-01-01

    Several possible estimators are available for basal area growth of survivor trees, when horizontal prism (or point) plots (HPP) are remeasured. This study's comparison of three estimators not only provides a check for the estimate of basal area growth but suggests that they can provide a quality control indicator for yield procedures. An example is derived from...

  11. Mentoring Student Participation in Undergraduate Research: A Case Study of Twists and Turns from Two Perspectives

    ERIC Educational Resources Information Center

    Perez, Ismael; Bowers, Janet; Salamon, Peter

    2017-01-01

    Undergraduate research experiences provide excellent examples of high-impact practices. They rely on inquiry-based learning to provide important capstone experiences for the students. However, they are time-intensive for mentor faculty. In an attempt to scale up our faculty's ability to offer such experiences, we combined a number of projects into…

  12. Sharing methodology: a worked example of theoretical integration with qualitative data to clarify practical understanding of learning and generate new theoretical development.

    PubMed

    Yardley, Sarah; Brosnan, Caragh; Richardson, Jane

    2013-01-01

    Theoretical integration is a necessary element of study design if clarification of experiential learning is to be achieved. There are few published examples demonstrating how this can be achieved. This methodological article provides a worked example of research methodology that achieved clarification of authentic early experiences (AEEs) through a bi-directional approach to theory and data. Bi-directional refers to our simultaneous use of theory to guide and interrogate empirical data and the use of empirical data to refine theory. We explain the five steps of our methodological approach: (1) understanding the context; (2) critique on existing applications of socio-cultural models to inform study design; (3) data generation; (4) analysis and interpretation and (5) theoretical development through a novel application of Metis. These steps resulted in understanding of how and why different outcomes arose from students participating in AEE. Our approach offers a mechanism for clarification without which evidence-based effective ways to maximise constructive learning cannot be developed. In our example it also contributed to greater theoretical understanding of the influence of social interactions. By sharing this example of research undertaken to develop both theory and educational practice we hope to assist others seeking to conduct similar research.

  13. Metagenomic applications in environmental monitoring and bioremediation.

    PubMed

    Techtmann, Stephen M; Hazen, Terry C

    2016-10-01

    With the rapid advances in sequencing technology, the cost of sequencing has dramatically dropped and the scale of sequencing projects has increased accordingly. This has provided the opportunity for the routine use of sequencing techniques in the monitoring of environmental microbes. While metagenomic applications have been routinely applied to better understand the ecology and diversity of microbes, their use in environmental monitoring and bioremediation is increasingly common. In this review we seek to provide an overview of some of the metagenomic techniques used in environmental systems biology, addressing their application and limitation. We will also provide several recent examples of the application of metagenomics to bioremediation. We discuss examples where microbial communities have been used to predict the presence and extent of contamination, examples of how metagenomics can be used to characterize the process of natural attenuation by unculturable microbes, as well as examples detailing the use of metagenomics to understand the impact of biostimulation on microbial communities.

  14. 42 CFR 422.590 - Timeframes and responsibility for reconsiderations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... the enrollee (for example, the receipt of additional medical evidence from noncontract providers may... (for example, the receipt of additional medical evidence from noncontract providers may change an MA...) When the issue is the MA organization's denial of coverage based on a lack of medical necessity (or any...

  15. Video-Based Test Questions: A Novel Means of Evaluation

    ERIC Educational Resources Information Center

    Hertenstein, Matthew J.; Wayand, Joseph F.

    2008-01-01

    Many psychology instructors present videotaped examples of behavior at least occasionally during their courses. However, few include video clips during examinations. We provide examples of video-based questions, offer guidelines for their use, and discuss their benefits and drawbacks. In addition, we provide empirical evidence to support the use…

  16. Entanglement cost under positive-partial-transpose-preserving operations.

    PubMed

    Audenaert, K; Plenio, M B; Eisert, J

    2003-01-17

    We study the entanglement cost under quantum operations preserving the positivity of the partial transpose (PPT operations). We demonstrate that this cost is directly related to the logarithmic negativity, thereby providing the operational interpretation for this entanglement measure. As examples we discuss general Werner states and arbitrary bipartite Gaussian states. Then we prove that for the antisymmetric Werner state PPT cost and PPT entanglement of distillation coincide. This is the first example of a truly mixed state for which entanglement manipulation is asymptotically reversible, which points towards a unique entanglement measure under PPT operations.

  17. Exploring the Physics of Unstable Nuclei

    NASA Astrophysics Data System (ADS)

    Volya, Alexander

    In this presentation the Continuum Shell Model (CSM) approach is advertised as a powerful theoretical tool for studying physics of unstable nuclei. The approach is illustrated using 17O as an example, which is followed by a brief presentation of the general CSM formalism. The successes of the CSM are highlighted and references are provided throughout the text. As an example, the CSM is applied perturbatively to 20O allowing one to explore the effects of continuum on positions of weakly bound states and low-lying resonances, as well as to discern some effects of threshold discontinuity.

  18. Enhancing medical-surgical nursing practice: using practice tests and clinical examples to promote active learning and program evaluation.

    PubMed

    DuHamel, Martha B; Hirnle, Constance; Karvonen, Colleen; Sayre, Cindy; Wyant, Sheryl; Colobong Smith, Nancy; Keener, Sheila; Barrett, Shannon; Whitney, Joanne D

    2011-10-01

    In a 14-week medical-surgical nursing review course, two teaching strategies are used to promote active learning and assess the transfer of knowledge to nursing practice. Practice tests and clinical examples provide opportunities for participants to engage in self-assessment and reflective learning and enhance their nursing knowledge, skills, and practice. These strategies also contribute to program evaluation and are adaptable to a variety of course formats, including traditional classroom, web conference, and online self-study. Copyright 2011, SLACK Incorporated.

  19. Case Study Analysis of U.S. Policy Solutions to Enable China New Energy Cities

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

    Simon, J.; Tian, T.; Liu, C.

    2015-05-28

    This report summarizes various policies for encouraging investment and installation of renewable energy across the country. In particular, we attempt to explain the benefits of, and considerations behind, each policy type and provide examples of implementation across the United States While recognized as important, this report does not address policies or examples of successful energy efficiency or alternative-fuel vehicle strategies. In addition, we summarize the renewable energy policy strategies undertaken by three areas of the United States: New Jersey, Hawaii, and San Francisco.

  20. Building Training Curricula for Accelerating the Use of NOAA Climate Products and Tools

    NASA Astrophysics Data System (ADS)

    Timofeyeva-Livezey, M. M.; Meyers, J. C.; Stevermer, A.; Abshire, W. E.; Beller-Simms, N.; Herring, D.

    2016-12-01

    The National Oceanic and Atmospheric Administration (NOAA) plays a leading role in U.S. intergovernmental efforts on the Climate Data Initiative and the Climate Resilience Toolkit (CRT). CRT (http://toolkit.climate.gov/) is a valuable resource that provides tools, information, and subject matter expertise to decision makers in various sectors, such as agriculture, water resources and transportation, to help them build resilience to our changing climate. In order to make best use of the toolkit and all the resources within it, a training component is critical. The training section helps building users' understanding of the data, science, and impacts of climate variability and change. CRT identifies five steps in building resilience that includes use of appropriate tools to support decision makers depending on their needs. One tool that can be potentially integrated into CRT is NOAA's Local Climate Analysis Tool (LCAT), which provides access to trusted NOAA data and scientifically-sound analysis techniques for doing regional and local climate studies on climate variability and climate change. However, in order for LCAT to be used effectively, we have found an iterative learning approach using specific examples to train users. For example, for LCAT application in analysis of water resources, we use existing CRT case studies for Arizona and Florida water supply users. The Florida example demonstrates primary sensitivity to climate variability impacts, whereas the Arizona example takes into account longer- term climate change. The types of analyses included in LCAT are time series analysis of local climate and the estimated rate of change in the local climate. It also provides a composite analysis to evaluate the relationship between local climate and climate variability events such as El Niño Southern Oscillation, the Pacific North American Index, and other modes of climate variability. This paper will describe the development of a training module for use of LCAT and its integration into CRT. An iterative approach was used that incorporates specific examples of decision making while working with subject matter experts within the water supply community. The recommended strategy is to use a "stepping stone" learning structure to build users knowledge of best practices for use of LCAT.

  1. NMR crystallography: structure and properties of materials from solid-state nuclear magnetic resonance observables

    PubMed Central

    Bryce, David L.

    2017-01-01

    This topical review provides a brief overview of recent developments in NMR crystallography and related NMR approaches to studying the properties of molecular and ionic solids. Areas of complementarity with diffraction-based methods are underscored. These include the study of disordered systems, of dynamic systems, and other selected examples where NMR can provide unique insights. Highlights from the literature as well as recent work from my own group are discussed. PMID:28875022

  2. Applying Bayesian statistics to the study of psychological trauma: A suggestion for future research.

    PubMed

    Yalch, Matthew M

    2016-03-01

    Several contemporary researchers have noted the virtues of Bayesian methods of data analysis. Although debates continue about whether conventional or Bayesian statistics is the "better" approach for researchers in general, there are reasons why Bayesian methods may be well suited to the study of psychological trauma in particular. This article describes how Bayesian statistics offers practical solutions to the problems of data non-normality, small sample size, and missing data common in research on psychological trauma. After a discussion of these problems and the effects they have on trauma research, this article explains the basic philosophical and statistical foundations of Bayesian statistics and how it provides solutions to these problems using an applied example. Results of the literature review and the accompanying example indicates the utility of Bayesian statistics in addressing problems common in trauma research. Bayesian statistics provides a set of methodological tools and a broader philosophical framework that is useful for trauma researchers. Methodological resources are also provided so that interested readers can learn more. (c) 2016 APA, all rights reserved).

  3. Building research infrastructure in community health centers: a Community Health Applied Research Network (CHARN) report.

    PubMed

    Likumahuwa, Sonja; Song, Hui; Singal, Robbie; Weir, Rosy Chang; Crane, Heidi; Muench, John; Sim, Shao-Chee; DeVoe, Jennifer E

    2013-01-01

    This article introduces the Community Health Applied Research Network (CHARN), a practice-based research network of community health centers (CHCs). Established by the Health Resources and Services Administration in 2010, CHARN is a network of 4 community research nodes, each with multiple affiliated CHCs and an academic center. The four nodes (18 individual CHCs and 4 academic partners in 9 states) are supported by a data coordinating center. Here we provide case studies detailing how CHARN is building research infrastructure and capacity in CHCs, with a particular focus on how community practice-academic partnerships were facilitated by the CHARN structure. The examples provided by the CHARN nodes include many of the building blocks of research capacity: communication capacity and "matchmaking" between providers and researchers; technology transfer; research methods tailored to community practice settings; and community institutional review board infrastructure to enable community oversight. We draw lessons learned from these case studies that we hope will serve as examples for other networks, with special relevance for community-based networks seeking to build research infrastructure in primary care settings.

  4. Building Research Infrastructure in Community Health Centers: A Community Health Applied Research Network (CHARN) Report

    PubMed Central

    Likumahuwa, Sonja; Song, Hui; Singal, Robbie; Weir, Rosy Chang; Crane, Heidi; Muench, John; Sim, Shao-Chee; DeVoe, Jennifer E.

    2015-01-01

    This article introduces the Community Health Applied Research Network (CHARN), a practice-based research network of community health centers (CHCs). Established by the Health Resources and Services Administration in 2010, CHARN is a network of 4 community research nodes, each with multiple affiliated CHCs and an academic center. The four nodes (18 individual CHCs and 4 academic partners in 9 states) are supported by a data coordinating center. Here we provide case studies detailing how CHARN is building research infrastructure and capacity in CHCs, with a particular focus on how community practice-academic partnerships were facilitated by the CHARN structure. The examples provided by the CHARN nodes include many of the building blocks of research capacity: communication capacity and “matchmaking” between providers and researchers; technology transfer; research methods tailored to community practice settings; and community institutional review board infrastructure to enable community oversight. We draw lessons learned from these case studies that we hope will serve as examples for other networks, with special relevance for community-based networks seeking to build research infrastructure in primary care settings. PMID:24004710

  5. Planes, straws and oysters: the use of metaphors in healthcare reform.

    PubMed

    Millar, Ross; Dickinson, Helen

    2016-01-01

    The purpose of the paper is to examine the metaphors used by senior managers and clinicians in the delivery of healthcare reform. A study of healthcare reform in England carried out a series of semi structured interviews with senior managers and clinicians leading primary and secondary care organisations. Qualitative data analysis examines instances where metaphorical language is used to communicate how particular policy reforms are experienced and the implications these reforms have for organisational contexts. The findings show how metaphorical language is used to explain the interactions between policy reform and organisational contexts. Metaphors are used to illustrate both the challenges and opportunities associated with the reform proposals for organisational change. The authors provide the first systematic study of patterns and meanings of metaphors within English healthcare contexts and beyond. The authors argue that these metaphors provide important examples of "generative" dialogue in their illustration of the opportunities associated with reform. Conversely, these metaphors also provide examples of "degenerative" dialogue in their illustration of a demarcation between the reform policy proposals and existing organisational contexts.

  6. Watershed management contributions to land stewardship: Case studies in the Southeast

    Treesearch

    Wayne T. Swank; David R. Tilley

    2000-01-01

    We describe three examples of watershed management studies, at different spatial scales, that provide approaches and information useful in enhancing natural resource stewardship in the southern Appalachians. A multiple use “pilot” study, initiated 35 years ago at the Coweeta Hydrologic Laboratory, demonstrates that southern Appalachian forests can be successfully...

  7. Track Picture Book. Elementary Science Study.

    ERIC Educational Resources Information Center

    Webster, David; And Others

    This picture book was designed to be used with an Elementary Science Study unit that provides opportunities for students in grades 4-6 to study animal tracks. Shown within this book are numerous examples of tracks, including those of tires, human beings, animal tracks, and others in various media, such as snow, sand, mud, dust, and cement. (CS)

  8. (If Social Studies Is Wrong) I Don't Want to Be Right

    ERIC Educational Resources Information Center

    Ross, E. Wayne; Marker, Perry M.

    2005-01-01

    There are at least two good reasons to pay serious attention to the latest skirmish in the social studies wars. First, it is one of the most prominent examples of "movement conservatism" to involve established social studies researchers; and secondly, it provides an opportunity for social educators to scrutinize the fundamental dilemma embedded in…

  9. Negative Example Selection for Protein Function Prediction: The NoGO Database

    PubMed Central

    Youngs, Noah; Penfold-Brown, Duncan; Bonneau, Richard; Shasha, Dennis

    2014-01-01

    Negative examples – genes that are known not to carry out a given protein function – are rarely recorded in genome and proteome annotation databases, such as the Gene Ontology database. Negative examples are required, however, for several of the most powerful machine learning methods for integrative protein function prediction. Most protein function prediction efforts have relied on a variety of heuristics for the choice of negative examples. Determining the accuracy of methods for negative example prediction is itself a non-trivial task, given that the Open World Assumption as applied to gene annotations rules out many traditional validation metrics. We present a rigorous comparison of these heuristics, utilizing a temporal holdout, and a novel evaluation strategy for negative examples. We add to this comparison several algorithms adapted from Positive-Unlabeled learning scenarios in text-classification, which are the current state of the art methods for generating negative examples in low-density annotation contexts. Lastly, we present two novel algorithms of our own construction, one based on empirical conditional probability, and the other using topic modeling applied to genes and annotations. We demonstrate that our algorithms achieve significantly fewer incorrect negative example predictions than the current state of the art, using multiple benchmarks covering multiple organisms. Our methods may be applied to generate negative examples for any type of method that deals with protein function, and to this end we provide a database of negative examples in several well-studied organisms, for general use (The NoGO database, available at: bonneaulab.bio.nyu.edu/nogo.html). PMID:24922051

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

    Gilbert, Richard O.

    The application of statistics to environmental pollution monitoring studies requires a knowledge of statistical analysis methods particularly well suited to pollution data. This book fills that need by providing sampling plans, statistical tests, parameter estimation procedure techniques, and references to pertinent publications. Most of the statistical techniques are relatively simple, and examples, exercises, and case studies are provided to illustrate procedures. The book is logically divided into three parts. Chapters 1, 2, and 3 are introductory chapters. Chapters 4 through 10 discuss field sampling designs and Chapters 11 through 18 deal with a broad range of statistical analysis procedures. Somemore » statistical techniques given here are not commonly seen in statistics book. For example, see methods for handling correlated data (Sections 4.5 and 11.12), for detecting hot spots (Chapter 10), and for estimating a confidence interval for the mean of a lognormal distribution (Section 13.2). Also, Appendix B lists a computer code that estimates and tests for trends over time at one or more monitoring stations using nonparametric methods (Chapters 16 and 17). Unfortunately, some important topics could not be included because of their complexity and the need to limit the length of the book. For example, only brief mention could be made of time series analysis using Box-Jenkins methods and of kriging techniques for estimating spatial and spatial-time patterns of pollution, although multiple references on these topics are provided. Also, no discussion of methods for assessing risks from environmental pollution could be included.« less

  11. Poppers, Kaposi's sarcoma, and HIV infection: empirical example of a strong confounding effect?

    PubMed

    Morabia, A

    1995-01-01

    Are there empirical examples of strong confounding effects? Textbooks usually show examples of weak confounding or use hypothetical examples of strong confounding to illustrate the paradoxical consequences of not separating out the effect of the studied exposure from that of second factor acting as a confounder. HIV infection is a candidate strong confounder of the spuriously high association reported between consumption of poppers, a sexual stimulant, and risk of Kaposi's sarcoma in the early phase of the AIDS epidemic. To examine this hypothesis, assumptions must be made on the prevalence of HIV infection among cases of Kaposi's sarcoma and on the prevalence of heavy popper consumption according to HIV infection in cases and controls. Results show that HIV infection may have confounded the poppers-Kaposi's sarcoma association. However, it cannot be ruled out that HIV did not qualify as a confounder because it was either an intermediate variable or an effect modifier of the association between popper inhalation and Kaposi's sarcoma. This example provides a basis to discuss the mechanism by which confounding occurs as well as the practical importance of confounding in epidemiologic research.

  12. Quasi-Experimental Evaluations. Part 6 in a Series on Practical Evaluation Methods. Research-to-Results Brief. Publication #2008-04

    ERIC Educational Resources Information Center

    Moore, Kristin Anderson

    2008-01-01

    Although experimental studies are described as the "gold standard" for assessing the effectiveness of a program in changing outcomes, in some cases, quasi-experimental studies may be more feasible or appropriate. Many types of quasi-experimental studies are possible. For example, an implementation study can provide valuable information on whether,…

  13. STUDIES OF GIFTED CHILDREN COMPLETED BY STUDENTS AT THE UNIVERSITY OF KANSAS. KANSAS STUDIES IN EDUCATION, VOLUME 17, NUMBER 1.

    ERIC Educational Resources Information Center

    CORNISH, ROBERT L.

    ABSTRACTS OF 27 STUDIES WERE COMPILED AS EXAMPLES OF INVESTIGATIONS MADE BY TEACHERS CONCERNED WITH THE INDIVIDUAL QUALITIES OF GIFTED CHILDREN IN THEIR SCHOOLS. THE STUDIES ARE ARRANGED IN FOUR SECTIONS--IDENTIFICATION AND CHARACTERISTICS, ACHIEVEMENT IN SCHOOL, HIGHER EDUCATION, AND EDUCATIONAL PROVISIONS AND PROGRAMS. EACH SECTION PROVIDES A…

  14. HEALTH CARE GUIDE TO POLLUTION PREVENTION IMPLEMENTATION THROUGH ENVIRONMENTAL MANAGEMENT SYSTEMS

    EPA Science Inventory

    The Health Care Guide to Pollution Prevention Implementation through Environmental Management Systems provides example EMS procedures and forms used in four ISO 14001 EMS certified hospitals. The latest revisions include more EMS hospital case studies, more compliance resources, ...

  15. Epigenetic mechanisms of nutrient-induced modulation of gene expression and cellular functions

    USDA-ARS?s Scientific Manuscript database

    Utilizing next-generation sequencing technology in combination with chromatin immunoprecipitation (ChIP) technology, our study provides systematic and novel insights into the relationships between nutrition and epigenetics. One paradigmatic example of nutrient-epigenetic-phenotype relationship is th...

  16. Understanding `green chemistry' and `sustainability': an example of problem-based learning (PBL)

    NASA Astrophysics Data System (ADS)

    Günter, Tuğçe; Akkuzu, Nalan; Alpat, Şenol

    2017-10-01

    Background: This study uses problem-based learning (PBL) to ensure that students comprehend the significance of green chemistry better by experiencing the stages of identifying the problem, developing hypotheses, and providing solutions within the problem-solving process.

  17. Transportation Analysis and Feasibility Study : Sabino Canyon Recreation Area, Coronado National Forest

    DOT National Transportation Integrated Search

    2010-02-28

    The goal of this report is to identify potential transportation solutions to issues that have been identified : at Sabino Canyon. Examples of future transportation systems are provided to show a variety of future : transportation conditions within th...

  18. Seizing the Civic Education Moment

    ERIC Educational Resources Information Center

    Tripodo, Andrew; Pondiscio, Robert

    2017-01-01

    The current political climate has created urgency around civic education. The authors argue that educators can best seize the moment by infusing authentic activities and experiences in content studies. They provide an example of one such hybrid instructional model from Democracy Prep Public Schools.

  19. Enhancing Learning in Statistics Classes Through The Use of Concrete Historical Examples: The Space Shuttle Challenger, Pearl Harbor, and the RMS Titanic.

    ERIC Educational Resources Information Center

    Schumm, Walter R.; Webb, Farrell J.; Castelo, Carlos S.; Akagi, Cynthia G.; Jensen, Erick J.; Ditto, Rose M.; Spencer Carver, Elaine; Brown, Beverlyn F.

    2002-01-01

    Discusses the use of historical events as examples for teaching college level statistics courses. Focuses on examples of the space shuttle Challenger, Pearl Harbor (Hawaii), and the RMS Titanic. Finds real life examples can bridge a link to short term experiential learning and provide a means for long term understanding of statistics. (KDR)

  20. A Practical Guide to Check the Consistency of Item Response Patterns in Clinical Research Through Person-Fit Statistics: Examples and a Computer Program.

    PubMed

    Meijer, Rob R; Niessen, A Susan M; Tendeiro, Jorge N

    2016-02-01

    Although there are many studies devoted to person-fit statistics to detect inconsistent item score patterns, most studies are difficult to understand for nonspecialists. The aim of this tutorial is to explain the principles of these statistics for researchers and clinicians who are interested in applying these statistics. In particular, we first explain how invalid test scores can be detected using person-fit statistics; second, we provide the reader practical examples of existing studies that used person-fit statistics to detect and to interpret inconsistent item score patterns; and third, we discuss a new R-package that can be used to identify and interpret inconsistent score patterns. © The Author(s) 2015.

  1. Meta-analyses and adaptive group sequential designs in the clinical development process.

    PubMed

    Jennison, Christopher; Turnbull, Bruce W

    2005-01-01

    The clinical development process can be viewed as a succession of trials, possibly overlapping in calendar time. The design of each trial may be influenced by results from previous studies and other currently proceeding trials, as well as by external information. Results from all of these trials must be considered together in order to assess the efficacy and safety of the proposed new treatment. Meta-analysis techniques provide a formal way of combining the information. We examine how such methods can be used in combining results from: (1) a collection of separate studies, (2) a sequence of studies in an organized development program, and (3) stages within a single study using a (possibly adaptive) group sequential design. We present two examples. The first example concerns the combining of results from a Phase IIb trial using several dose levels or treatment arms with those of the Phase III trial comparing the treatment selected in Phase IIb against a control This enables a "seamless transition" from Phase IIb to Phase III. The second example examines the use of combination tests to analyze data from an adaptive group sequential trial.

  2. Classroom Use of Martial Arts Exhibitions

    NASA Astrophysics Data System (ADS)

    Landry, Shane Garrett; Denn, Grant R.

    2006-10-01

    Martial arts are becoming increasingly popular, and many of the techniques used by martial artists can provide effective demonstrations to showcase basic physics concepts. Many students have martial arts experience by the time they reach the senior level of high school or college. In one conceptual physics course, seven students out of 40 had studied some form of martial arts. Teachers can use experienced students as a resource and exploit the popularity of martial arts to demonstrate some basic points in Newtonian mechanics via martial arts demonstrations. This interactive mode of learning, we have found, is very popular and highly motivational for the students. In this paper we provide some of the possible examples of effective classroom demonstrations; there are many additional examples that your students may want to introduce.

  3. Consensus-based identification of factors related to false-positives in ultrasound scanning of synovitis and tenosynovitis.

    PubMed

    Ikeda, Kei; Narita, Akihiro; Ogasawara, Michihiro; Ohno, Shigeru; Kawahito, Yutaka; Kawakami, Atsushi; Ito, Hiromu; Matsushita, Isao; Suzuki, Takeshi; Misaki, Kenta; Ogura, Takehisa; Kamishima, Tamotsu; Seto, Yohei; Nakahara, Ryuichi; Kaneko, Atsushi; Nakamura, Takayuki; Henmi, Mihoko; Fukae, Jun; Nishida, Keiichiro; Sumida, Takayuki; Koike, Takao

    2016-01-01

    We aimed to identify causes of false-positives in ultrasound scanning of synovial/tenosynovial/bursal inflammation and provide corresponding imaging examples. We first performed systematic literature review to identify previously reported causes of false-positives. We next determined causes of false-positives and corresponding example images for educational material through Delphi exercises and discussion by 15 experts who were an instructor and/or a lecturer in the 2013 advanced course for musculoskeletal ultrasound organized by Japan College of Rheumatology Committee for the Standardization of Musculoskeletal Ultrasonography. Systematic literature review identified 11 articles relevant to sonographic false-positives of synovial/tenosynovial inflammation. Based on these studies, 21 candidate causes of false-positives were identified in the consensus meeting. Of these items, 11 achieved a predefined consensus (≥ 80%) in Delphi exercise and were classified as follows: (I) Gray-scale assessment [(A) non-specific synovial findings and (B) normal anatomical structures which can mimic synovial lesions due to either their low echogenicity or anisotropy]; (II) Doppler assessment [(A) Intra-articular normal vessels and (B) reverberation)]. Twenty-four corresponding examples with 49 still and 23 video images also achieved consensus. Our study provides a set of representative images that can help sonographers to understand false-positives in ultrasound scanning of synovitis and tenosynovitis.

  4. Measuring Learning Progressions Using Bayesian Modeling in Complex Assessments

    ERIC Educational Resources Information Center

    Rutstein, Daisy Wise

    2012-01-01

    This research examines issues regarding model estimation and robustness in the use of Bayesian Inference Networks (BINs) for measuring Learning Progressions (LPs). It provides background information on LPs and how they might be used in practice. Two simulation studies are performed, along with real data examples. The first study examines the case…

  5. From Bhopal to Cold Fusion: A Case-Study Approach to Writing Assignments in Honors General Chemistry

    ERIC Educational Resources Information Center

    Chamely-Wiik, Donna M.; Haky, Jerome E.; Galin, Jeffrey R.

    2012-01-01

    Faculty from the chemistry and English departments have developed a combined second-semester honors general chemistry and college writing course that fosters critical thinking through challenging writing assignments. Examples of case-study writing assignments and guidelines are provided that faculty at other institutions can adapt in similar…

  6. Schoolwide Mathematics Achievement within the Gifted Cluster Grouping Model

    ERIC Educational Resources Information Center

    Brulles, Dina; Peters, Scott J.; Saunders, Rachel

    2012-01-01

    An increasing number of schools are implementing gifted cluster grouping models as a cost-effective way to provide gifted services. This study is an example of comparative action research in the form of a quantitative case study that focused on mathematic achievement for nongifted students in a district that incorporated a schoolwide cluster…

  7. The Causal Effects of Cultural Relevance: Evidence from an Ethnic Studies Curriculum. CEPA Working Paper No. 16-01

    ERIC Educational Resources Information Center

    Dee, Thomas; Penner, Emily

    2016-01-01

    An extensive theoretical and qualitative literature stresses the promise of instructional practices and content aligned with the cultural experiences of minority students. Ethnic studies courses provide a growing but controversial example of such "culturally relevant pedagogy." However, the empirical evidence on the effectiveness of…

  8. Combining Vocational and Higher Education Studies to Provide Dual Parallel Qualifications--An Australian Case Study

    ERIC Educational Resources Information Center

    McLaughlin, Patricia; Mills, Anthony

    2011-01-01

    Developing academic relationships between vocational colleges and universities in Australia has been problematic, with exchanges between the two sectors limited to linear articulation and prescribed credit transfer. Whilst some very good examples of collaboration exist, the two sectors generally operate independently of each other. The isolation…

  9. How Does Neuroscience Inform the Study of Cognitive Development?

    ERIC Educational Resources Information Center

    Nelson, Charles A.; Moulson, Margaret C.; Richmond, Jenny

    2006-01-01

    The fields of developmental psychology and developmental neuroscience have existed independently of one another for many years. This is unfortunate, as knowledge of how the brain develops can inform the study of behavioral development. In this paper, we provide two examples of how knowledge about brain development has improved our understanding of…

  10. Sources of Support and Psychological Distress among Academically Successful Inner-City Youth.

    ERIC Educational Resources Information Center

    Kenny, Maureen E.; Gallagher, Laura A.; Alvarez-Salvat, Rose; Silsby, John

    2002-01-01

    In Study 1, the relationships between parental attachment, academic achievement, and distress were tested with a sample of academically successful inner-city high school students (N=100). Affective quality of maternal attachment was positively associated with grade point average. In Study 2, case examples provided an examination of sources of…

  11. Adult Education in Development. Methods and Approaches from Changing Societies.

    ERIC Educational Resources Information Center

    McGivney, Veronica; Murray, Frances

    The case studies described in this book provide examples of initiatives illustrating the role of adult education in development and its contribution to the process of change in developing countries. The book is organized in five sections. Case studies in Part 1, "Health Education," illustrate the links between primary health care and…

  12. Understanding "Green Chemistry" and "Sustainability": An Example of Problem-Based Learning (PBL)

    ERIC Educational Resources Information Center

    Günter, Tugçe; Akkuzu, Nalan; Alpat, Senol

    2017-01-01

    Background: This study uses problem-based learning (PBL) to ensure that students comprehend the significance of green chemistry better by experiencing the stages of identifying the problem, developing hypotheses, and providing solutions within the problem-solving process. Purpose: The aim of this study is to research the effect of PBL implemented…

  13. Collaboration in a Multidisciplinary, Distributed Research Organization: A Case Study

    ERIC Educational Resources Information Center

    Duysburgh, Pieter; Naessens, Kris; Konings, Wim; Jacobs, An

    2012-01-01

    Collaboration has become a main characteristic of academic research today. New forms of research organizations, colaboratories, have come to the fore, with distributed research centres as their most complex example. In this study, we aim to provide some insight into the collaboration strategies of researchers in their daily researching activities…

  14. STUDIES OF METABOLITE-PROTEIN INTERACTIONS: A REVIEW

    PubMed Central

    Matsuda, Ryan; Bi, Cong; Anguizola, Jeanethe; Sobansky, Matthew; Rodriquez, Elliot; Badilla, John Vargas; Zheng, Xiwei; Hage, Benjamin; Hage, David S.

    2014-01-01

    The study of metabolomics can provide valuable information about biochemical pathways and processes at the molecular level. There have been many reports that have examined the structure, identity and concentrations of metabolites in biological systems. However, the binding of metabolites with proteins is also of growing interest. This review examines past reports that have looked at the binding of various types of metabolites with proteins. An overview of the techniques that have been used to characterize and study metabolite-protein binding is first provided. This is followed by examples of studies that have investigated the binding of hormones, fatty acids, drugs or other xenobiotics, and their metabolites with transport proteins and receptors. These examples include reports that have considered the structure of the resulting solute-protein complexes, the nature of the binding sites, the strength of these interactions, the variations in these interactions with solute structure, and the kinetics of these reactions. The possible effects of metabolic diseases on these processes, including the impact of alterations in the structure and function of proteins, are also considered. PMID:24321277

  15. SAM 2 measurements of the polar stratospheric aerosol. Volume 9: October 1982 - April 1983

    NASA Technical Reports Server (NTRS)

    Mcmaster, L. R.; Powell, K. A.

    1991-01-01

    The Stratospheric Aerosol Measurement (SAM) II sensor aboard Nimbus 7 is providing 1.0 micron extinction measurements of Antarctic and Arctic stratospheric aerosols with a vertical resolution of 1 km. Representative examples and weekly averages including corresponding temperature profiles provided by NOAA for the time and place of each SAM II measurement are presented. Contours of aerosol extinction as a function of altitude and longitude or time are plotted, and aerosol optical depths are calculated for each week. Typical values of aerosol extinction and stratospheric optical depth in the Arctic are unusually large due to the presence of material from the El Chichon volcano eruption in the Spring of 1982. For example, the optical depth peaked at 0.068, more than 50 times background values. Typical values of aerosol extinction and stratospheric optical depth in the Antarctic varied considerably during this period due to the transport and arrival of the material from the El Chichon eruption. For example, the stratospheric optical depth varied from 0.002 in October 1982, to 0.021 in January 1983. Polar stratospheric clouds were observed during the Arctic winter, as expected. A representative sample is provided of the ninth 6-month period of data to be used in atmospheric and climatic studies.

  16. Will your plans survive a crisis? Principles for ensuring an effective recovery.

    PubMed

    Jones, Brendan

    2017-01-01

    Guided by international standards, internal governance and government policy, most businesses and organisations will have continuity plans. There is, however, a significant difference between a having a plan and providing an effective response and recovery to a crisis event. This paper will explore six principles that will ensure an organisation can provide an effective response to significant business disruptions. Two real-life case studies provide practical examples of these principles at work.

  17. 26 CFR 1.181-1 - Deduction for qualified film and television production costs.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... amount of aggregate production costs that may be claimed as a deduction for a post-amendment production... provides special rules, including rules for recapture of the deduction. Section 1.181-5 provides examples... paid or incurred in connection with obtaining financing for the production (for example, premiums paid...

  18. Building New Bridges: Linking Organization Theory with Other Educational Literatures

    ERIC Educational Resources Information Center

    Johnson, Bob L., Jr.; Owens, Michael

    2005-01-01

    Purpose: This paper provides an example of how organization theory can be linked with other literatures in a complementary and productive manner. Establishing a bridge between the organization theory and learning environment literatures, the authors seek to provide an example of how such literature-bridging can enrich our understanding of the…

  19. Freedom of Speech and Press: Exceptions to the First Amendment

    DTIC Science & Technology

    2007-04-26

    some types of speech. For example, the Court has decided that the First Amendment provides no protection to obscenity, child pornography, or speech...1 Obscenity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Child ...some types of speech.2 For example, the Court has decided that the First Amendment provides no protection to obscenity, child pornography, or speech

  20. Observational Studies: Cohort and Case-Control Studies

    PubMed Central

    Song, Jae W.; Chung, Kevin C.

    2010-01-01

    Observational studies are an important category of study designs. To address some investigative questions in plastic surgery, randomized controlled trials are not always indicated or ethical to conduct. Instead, observational studies may be the next best method to address these types of questions. Well-designed observational studies have been shown to provide results similar to randomized controlled trials, challenging the belief that observational studies are second-rate. Cohort studies and case-control studies are two primary types of observational studies that aid in evaluating associations between diseases and exposures. In this review article, we describe these study designs, methodological issues, and provide examples from the plastic surgery literature. PMID:20697313

  1. Scheduling language and algorithm development study. Volume 2: Use of the basic language and module library

    NASA Technical Reports Server (NTRS)

    Chamberlain, R. A.; Cornick, D. E.; Flater, J. F.; Odoherty, R. J.; Peterson, F. M.; Ramsey, H. R.; Willoughby, J. K.

    1974-01-01

    The capabilities of the specified scheduling language and the program module library are outlined. The summary is written with the potential user in mind and, therefore, provides maximum insight on how the capabilities will be helpful in writing scheduling programs. Simple examples and illustrations are provided to assist the potential user in applying the capabilities of his problem.

  2. TARA: Tool Assisted Requirements Analysis

    DTIC Science & Technology

    1988-05-01

    provided during the project and to aid tool integration . Chapter 6 provides a brief discussion of the experience of specifying the ASET case study in CORE...set of Prolog clauses. This includes the context-free grammar rules depicted in Figure 2.1, integrity constraints such as those defining the binding...Jeremaes (1986). This was developed originally for specifying database management ". semantics (for example, the preservation of integrity constraints

  3. A Primer for Analyzing Nested Data: Multilevel Modeling in SPSS Using an Example from a REL Study. REL 2015-046

    ERIC Educational Resources Information Center

    O'Dwyer, Laura M.; Parker, Caroline E.

    2014-01-01

    Analyzing data that possess some form of nesting is often challenging for applied researchers or district staff who are involved in or in charge of conducting data analyses. This report provides a description of the challenges for analyzing nested data and provides a primer of how multilevel regression modeling may be used to resolve these…

  4. Modeling fibrous biological tissues with a general invariant that excludes compressed fibers

    NASA Astrophysics Data System (ADS)

    Li, Kewei; Ogden, Ray W.; Holzapfel, Gerhard A.

    2018-01-01

    Dispersed collagen fibers in fibrous soft biological tissues have a significant effect on the overall mechanical behavior of the tissues. Constitutive modeling of the detailed structure obtained by using advanced imaging modalities has been investigated extensively in the last decade. In particular, our group has previously proposed a fiber dispersion model based on a generalized structure tensor. However, the fiber tension-compression switch described in that study is unable to exclude compressed fibers within a dispersion and the model requires modification so as to avoid some unphysical effects. In a recent paper we have proposed a method which avoids such problems, but in this present study we introduce an alternative approach by using a new general invariant that only depends on the fibers under tension so that compressed fibers within a dispersion do not contribute to the strain-energy function. We then provide expressions for the associated Cauchy stress and elasticity tensors in a decoupled form. We have also implemented the proposed model in a finite element analysis program and illustrated the implementation with three representative examples: simple tension and compression, simple shear, and unconfined compression on articular cartilage. We have obtained very good agreement with the analytical solutions that are available for the first two examples. The third example shows the efficacy of the fibrous tissue model in a larger scale simulation. For comparison we also provide results for the three examples with the compressed fibers included, and the results are completely different. If the distribution of collagen fibers is such that it is appropriate to exclude compressed fibers then such a model should be adopted.

  5. 76 FR 16861 - Availability of Funds and Collection of Checks

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-25

    ... over the last 5 years. For example, at year-end 2005, the Reserve Banks received about 4 percent of... returned items electronically have decreased substantially. For example, the Reserve Banks now provide... comment on the desirability of these and other alternatives to the Board's proposal. \\17\\ For example, a...

  6. Inspiring Examples in Rearrangements of Infinite Series

    ERIC Educational Resources Information Center

    Ramasinghe, W.

    2002-01-01

    Simple examples are really encouraging in the understanding of rearrangements of infinite series, since many texts and teachers provide only existence theorems. In the absence of examples, an existence theorem is just a statement and lends little confidence to understanding. Iterated sums of double series seem to have a similar spirit of…

  7. Rent Seeking: A Textbook Example

    ERIC Educational Resources Information Center

    Pecorino, Paul

    2007-01-01

    The author argues that the college textbook market provides a clear example of monopoly seeking as described by Tullock (1967, 1980). This behavior is also known as rent seeking. Because this market is important to students, this example of rent seeking will be of particular interest to them. (Contains 24 notes.)

  8. Visualizing petroleum systems with a combination of GIS and multimedia technologies: An example from the West Siberia Basin

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

    Walsh, D.B.; Grace, J.D.

    1996-12-31

    Petroleum system studies provide an ideal application for the combination of Geographic Information System (GIS) and multimedia technologies. GIS technology is used to build and maintain the spatial and tabular data within the study region. Spatial data may comprise the zones of active source rocks and potential reservoir facies. Similarly, tabular data include the attendant source rock parameters (e.g. pyroloysis results, organic carbon content) and field-level exploration and production histories for the basin. Once the spatial and tabular data base has been constructed, GIS technology is useful in finding favorable exploration trends, such as zones of high organic content, maturemore » source rocks in positions adjacent to sealed, high porosity reservoir facies. Multimedia technology provides powerful visualization tools for petroleum system studies. The components of petroleum system development, most importantly generation, migration and trap development typically span periods of tens to hundreds of millions of years. The ability to animate spatial data over time provides an insightful alternative for studying the development of processes which are only captured in {open_quotes}snapshots{close_quotes} by static maps. New multimedia-authoring software provides this temporal dimension. The ability to record this data on CD-ROMs and allow user- interactivity further leverages the combination of spatial data bases, tabular data bases and time-based animations. The example used for this study was the Bazhenov-Neocomian petroleum system of West Siberia.« less

  9. Visualizing petroleum systems with a combination of GIS and multimedia technologies: An example from the West Siberia Basin

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

    Walsh, D.B.; Grace, J.D.

    1996-01-01

    Petroleum system studies provide an ideal application for the combination of Geographic Information System (GIS) and multimedia technologies. GIS technology is used to build and maintain the spatial and tabular data within the study region. Spatial data may comprise the zones of active source rocks and potential reservoir facies. Similarly, tabular data include the attendant source rock parameters (e.g. pyroloysis results, organic carbon content) and field-level exploration and production histories for the basin. Once the spatial and tabular data base has been constructed, GIS technology is useful in finding favorable exploration trends, such as zones of high organic content, maturemore » source rocks in positions adjacent to sealed, high porosity reservoir facies. Multimedia technology provides powerful visualization tools for petroleum system studies. The components of petroleum system development, most importantly generation, migration and trap development typically span periods of tens to hundreds of millions of years. The ability to animate spatial data over time provides an insightful alternative for studying the development of processes which are only captured in [open quotes]snapshots[close quotes] by static maps. New multimedia-authoring software provides this temporal dimension. The ability to record this data on CD-ROMs and allow user- interactivity further leverages the combination of spatial data bases, tabular data bases and time-based animations. The example used for this study was the Bazhenov-Neocomian petroleum system of West Siberia.« less

  10. Role of lake-wide prey fish survey in understanding ecosystem dynamics and managing fisheries of Lake Michigan

    USGS Publications Warehouse

    Madenjian, Charles P.; Edsall, T.; Munawar, M.

    2005-01-01

    With this study, the role of this lake-wide prey fish survey in both understanding the dynamics of the Lake Michigan ecosystem and managing Lake Michigan fisheries was documented. The complexity of ecosystems is such that long-term study is required before the dynamics of the ecosystem can be understoond. Furthermore, long-term observation is needed before important or meaningful questions about ecosystem dynamics can be asked. My approach is to first illustrate, by example, the usefulness of the survey results in providing insights into the dynamics of the Lake Michigan ecosystem. Then, examples of direct application of the survey results toward Lake Michigan fisheries management are presented.

  11. Application guide for universal source encoding for space

    NASA Technical Reports Server (NTRS)

    Yeh, Pen-Shu; Miller, Warner H.

    1993-01-01

    Lossless data compression was studied for many NASA missions. The Rice algorithm was demonstrated to provide better performance than other available techniques on most scientific data. A top-level description of the Rice algorithm is first given, along with some new capabilities implemented in both software and hardware forms. Systems issues important for onboard implementation, including sensor calibration, error propagation, and data packetization, are addressed. The latter part of the guide provides twelve case study examples drawn from a broad spectrum of science instruments.

  12. Test of association: which one is the most appropriate for my study?

    PubMed

    Gonzalez-Chica, David Alejandro; Bastos, João Luiz; Duquia, Rodrigo Pereira; Bonamigo, Renan Rangel; Martínez-Mesa, Jeovany

    2015-01-01

    Hypothesis tests are statistical tools widely used for assessing whether or not there is an association between two or more variables. These tests provide a probability of the type 1 error (p-value), which is used to accept or reject the null study hypothesis. To provide a practical guide to help researchers carefully select the most appropriate procedure to answer the research question. We discuss the logic of hypothesis testing and present the prerequisites of each procedure based on practical examples.

  13. Assessing ConnDOT's portland cement concrete testing methods phase II : field trials and implementation.

    DOT National Transportation Integrated Search

    2012-04-01

    This paper presents a description of efforts to disseminate findings from the Phase I study (SPR-2244), provides examples of applied maturity testing and temperature monitoring in Connecticut, reviews several State Highway Agency protocols for using ...

  14. A Framework for Shared Leadership.

    ERIC Educational Resources Information Center

    Lambert, Linda

    2002-01-01

    Asserts that principals can improve student learning by sharing the leadership of instruction with teachers and parents thereby building leadership capacity. Describes characteristics of schools with high leadership capacity. Provides examples of building leadership capacity through the use of study groups, action-research teams, and leadership…

  15. 77 FR 69590 - Submission for OMB Review; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-20

    ..., filing of petitions and applications and agency #0;statements of organization and functions are examples... number. Food and Nutrition Service Title: Study of Organizations Providing or Administering SNAP...: 315. Frequency of Responses: Reporting: On occasion. Total Burden Hours: 342. Title: Understanding the...

  16. Global Competition and Education: Another Sputnik?

    ERIC Educational Resources Information Center

    Flynn, Patrice

    1995-01-01

    Discusses the historical and contemporary relationships between global competition and education. Compares similarities between educational initiatives following the launch of Sputnik and those of the Goals 2000 program. Provides examples to encourage students to think about the new world order in social studies classrooms. (CFR)

  17. The Effects of a Blizzard on Urban Air Pollution.

    ERIC Educational Resources Information Center

    da Silva, Armando; Bein, Frederick L.

    1981-01-01

    The chronology and effects of a 1978 blizzard on Indianapolis' air pollution levels (ozone, sulfur dioxide, carbon monoxide) are used as a case study for geography classes. Photographs, graphs, and maps are provided as examples of meteorological data collection and interpretation. (AM)

  18. Advanced Computing for Science.

    ERIC Educational Resources Information Center

    Hut, Piet; Sussman, Gerald Jay

    1987-01-01

    Discusses some of the contributions that high-speed computing is making to the study of science. Emphasizes the use of computers in exploring complicated systems without the simplification required in traditional methods of observation and experimentation. Provides examples of computer assisted investigations in astronomy and physics. (TW)

  19. Bayesian Methods for the Physical Sciences. Learning from Examples in Astronomy and Physics.

    NASA Astrophysics Data System (ADS)

    Andreon, Stefano; Weaver, Brian

    2015-05-01

    Chapter 1: This chapter presents some basic steps for performing a good statistical analysis, all summarized in about one page. Chapter 2: This short chapter introduces the basics of probability theory inan intuitive fashion using simple examples. It also illustrates, again with examples, how to propagate errors and the difference between marginal and profile likelihoods. Chapter 3: This chapter introduces the computational tools and methods that we use for sampling from the posterior distribution. Since all numerical computations, and Bayesian ones are no exception, may end in errors, we also provide a few tips to check that the numerical computation is sampling from the posterior distribution. Chapter 4: Many of the concepts of building, running, and summarizing the resultsof a Bayesian analysis are described with this step-by-step guide using a basic (Gaussian) model. The chapter also introduces examples using Poisson and Binomial likelihoods, and how to combine repeated independent measurements. Chapter 5: All statistical analyses make assumptions, and Bayesian analyses are no exception. This chapter emphasizes that results depend on data and priors (assumptions). We illustrate this concept with examples where the prior plays greatly different roles, from major to negligible. We also provide some advice on how to look for information useful for sculpting the prior. Chapter 6: In this chapter we consider examples for which we want to estimate more than a single parameter. These common problems include estimating location and spread. We also consider examples that require the modeling of two populations (one we are interested in and a nuisance population) or averaging incompatible measurements. We also introduce quite complex examples dealing with upper limits and with a larger-than-expected scatter. Chapter 7: Rarely is a sample randomly selected from the population we wish to study. Often, samples are affected by selection effects, e.g., easier-to-collect events or objects are over-represented in samples and difficult-to-collect are under-represented if not missing altogether. In this chapter we show how to account for non-random data collection to infer the properties of the population from the studied sample. Chapter 8: In this chapter we introduce regression models, i.e., how to fit (regress) one, or more quantities, against each other through a functional relationship and estimate any unknown parameters that dictate this relationship. Questions of interest include: how to deal with samples affected by selection effects? How does a rich data structure influence the fitted parameters? And what about non-linear multiple-predictor fits, upper/lower limits, measurements errors of different amplitudes and an intrinsic variety in the studied populations or an extra source of variability? A number of examples illustrate how to answer these questions and how to predict the value of an unavailable quantity by exploiting the existence of a trend with another, available, quantity. Chapter 9: This chapter provides some advice on how the careful scientist should perform model checking and sensitivity analysis, i.e., how to answer the following questions: is the considered model at odds with the current available data (the fitted data), for example because it is over-simplified compared to some specific complexity pointed out by the data? Furthermore, are the data informative about the quantity being measured or are results sensibly dependent on details of the fitted model? And, finally, what about if assumptions are uncertain? A number of examples illustrate how to answer these questions. Chapter 10: This chapter compares the performance of Bayesian methods against simple, non-Bayesian alternatives, such as maximum likelihood, minimal chi square, ordinary and weighted least square, bivariate correlated errors and intrinsic scatter, and robust estimates of location and scale. Performances are evaluated in terms of quality of the prediction, accuracy of the estimates, and fairness and noisiness of the quoted errors. We also focus on three failures of maximum likelihood methods occurring with small samples, with mixtures, and with regressions with errors in the predictor quantity.

  20. Simulation methods to estimate design power: an overview for applied research.

    PubMed

    Arnold, Benjamin F; Hogan, Daniel R; Colford, John M; Hubbard, Alan E

    2011-06-20

    Estimating the required sample size and statistical power for a study is an integral part of study design. For standard designs, power equations provide an efficient solution to the problem, but they are unavailable for many complex study designs that arise in practice. For such complex study designs, computer simulation is a useful alternative for estimating study power. Although this approach is well known among statisticians, in our experience many epidemiologists and social scientists are unfamiliar with the technique. This article aims to address this knowledge gap. We review an approach to estimate study power for individual- or cluster-randomized designs using computer simulation. This flexible approach arises naturally from the model used to derive conventional power equations, but extends those methods to accommodate arbitrarily complex designs. The method is universally applicable to a broad range of designs and outcomes, and we present the material in a way that is approachable for quantitative, applied researchers. We illustrate the method using two examples (one simple, one complex) based on sanitation and nutritional interventions to improve child growth. We first show how simulation reproduces conventional power estimates for simple randomized designs over a broad range of sample scenarios to familiarize the reader with the approach. We then demonstrate how to extend the simulation approach to more complex designs. Finally, we discuss extensions to the examples in the article, and provide computer code to efficiently run the example simulations in both R and Stata. Simulation methods offer a flexible option to estimate statistical power for standard and non-traditional study designs and parameters of interest. The approach we have described is universally applicable for evaluating study designs used in epidemiologic and social science research.

  1. Simulation methods to estimate design power: an overview for applied research

    PubMed Central

    2011-01-01

    Background Estimating the required sample size and statistical power for a study is an integral part of study design. For standard designs, power equations provide an efficient solution to the problem, but they are unavailable for many complex study designs that arise in practice. For such complex study designs, computer simulation is a useful alternative for estimating study power. Although this approach is well known among statisticians, in our experience many epidemiologists and social scientists are unfamiliar with the technique. This article aims to address this knowledge gap. Methods We review an approach to estimate study power for individual- or cluster-randomized designs using computer simulation. This flexible approach arises naturally from the model used to derive conventional power equations, but extends those methods to accommodate arbitrarily complex designs. The method is universally applicable to a broad range of designs and outcomes, and we present the material in a way that is approachable for quantitative, applied researchers. We illustrate the method using two examples (one simple, one complex) based on sanitation and nutritional interventions to improve child growth. Results We first show how simulation reproduces conventional power estimates for simple randomized designs over a broad range of sample scenarios to familiarize the reader with the approach. We then demonstrate how to extend the simulation approach to more complex designs. Finally, we discuss extensions to the examples in the article, and provide computer code to efficiently run the example simulations in both R and Stata. Conclusions Simulation methods offer a flexible option to estimate statistical power for standard and non-traditional study designs and parameters of interest. The approach we have described is universally applicable for evaluating study designs used in epidemiologic and social science research. PMID:21689447

  2. Methods and systems for rapid prototyping of high density circuits

    DOEpatents

    Palmer, Jeremy A [Albuquerque, NM; Davis, Donald W [Albuquerque, NM; Chavez, Bart D [Albuquerque, NM; Gallegos, Phillip L [Albuquerque, NM; Wicker, Ryan B [El Paso, TX; Medina, Francisco R [El Paso, TX

    2008-09-02

    A preferred embodiment provides, for example, a system and method of integrating fluid media dispensing technology such as direct-write (DW) technologies with rapid prototyping (RP) technologies such as stereolithography (SL) to provide increased micro-fabrication and micro-stereolithography. A preferred embodiment of the present invention also provides, for example, a system and method for Rapid Prototyping High Density Circuit (RPHDC) manufacturing of solderless connectors and pilot devices with terminal geometries that are compatible with DW mechanisms and reduce contact resistance where the electrical system is encapsulated within structural members and manual electrical connections are eliminated in favor of automated DW traces. A preferred embodiment further provides, for example, a method of rapid prototyping comprising: fabricating a part layer using stereolithography and depositing thermally curable media onto the part layer using a fluid dispensing apparatus.

  3. "Scary Thing, Being an Eighth Grader:" Exploring Gender and Sexuality in a Middle School U.S. History Unit

    ERIC Educational Resources Information Center

    Levstik, Linda S.; Groth, Jeanette

    2002-01-01

    The study reported here provides an example of the complex interface among historical study, current issues, and adolescents' complex social worlds. The authors investigated the ways in which a group of eighth grade students conceptualize the significance of gender in the context of a study of antebellum U.S. history. Fifty students participated…

  4. Are Rural Schools Inferior to Urban Schools? A Multilevel Analysis of School Accountability Trends in Kentucky

    ERIC Educational Resources Information Center

    Reeves, Edward B.; Bylund, Robert A.

    2005-01-01

    Recent research does not provide clear evidence that rural schools are inferior to urban schools. For example, one prominent study finds that students in rural schools perform less well than their urban counterparts, but other studies using the same national data set have reached divergent conclusions. The present study reassesses the issue using…

  5. Study of Self: The Self as Designer in Online Teacher Education

    ERIC Educational Resources Information Center

    Parsons, Allison Ward; Hjalmarson, Margret A.

    2017-01-01

    In this article we describe our engagement in self-study as part of an examination of design-based research for education. We focus on graduate-level online teacher education as an example of how self-study provided a means of examining deeply our teaching and our roles as teacher and designer in the learning environment. We posit that online…

  6. Einsatz hydrogeochemischer Modelle in der Wasseraufbereitung

    NASA Astrophysics Data System (ADS)

    Wisotzky, Frank

    2012-09-01

    As part of a model-data investigation project, results of several water treatment studies were compared with hydrochemical models. The models used comparable hydrogeological reaction types that occur within aquifers and water treatment processes. They were tested on 3 different examples of water softening, de-nitrification and iron removal. Comparison of simulated and measured water chemical dynamics showed good agreement. In addition to mixing and formation of complexes, de-acidification and de-carbonisation processes were reproduced in the first example. The second example investigated de-nitrification in a straw filter and in a water plant filter with subsequent aeration. The third example showed iron removal where reactions with partially combusted dolomite were simulated with a computer model. All simulations showed good agreement with the observed data. The models have the advantage of yielding parameter results that are difficult to measure. This includes nitrogen gas release and the content of reacted and degradable organic substances. These tools may help to provide better insights into water treatment reactions.

  7. The Use of Brain Electrophysiology Techniques To Study Language: A Basic Guide for the Beginning Consumer of Electrophysiology Information.

    ERIC Educational Resources Information Center

    Molfese, Dennis L.; Molfese, Victoria J.; Kelly, Spencer

    2001-01-01

    This article provides an introduction to the use of event-related potential (ERP) approaches to study language processes. First, a brief history of the emergence of this technology is presented, followed by definitions, a theoretical overview, and a practical guide to conducting ERP studies. Examples of language studies that use this technique are…

  8. Claims-Based Definition of Death in Japanese Claims Database: Validity and Implications

    PubMed Central

    Ooba, Nobuhiro; Setoguchi, Soko; Ando, Takashi; Sato, Tsugumichi; Yamaguchi, Takuhiro; Mochizuki, Mayumi; Kubota, Kiyoshi

    2013-01-01

    Background For the pending National Claims Database in Japan, researchers will not have access to death information in the enrollment files. We developed and evaluated a claims-based definition of death. Methodology/Principal Findings We used healthcare claims and enrollment data between January 2005 and August 2009 for 195,193 beneficiaries aged 20 to 74 in 3 private health insurance unions. We developed claims-based definitions of death using discharge or disease status and Charlson comorbidity index (CCI). We calculated sensitivity, specificity and positive predictive values (PPVs) using the enrollment data as a gold standard in the overall population and subgroups divided by demographic and other factors. We also assessed bias and precision in two example studies where an outcome was death. The definition based on the combination of discharge/disease status and CCI provided moderate sensitivity (around 60%) and high specificity (99.99%) and high PPVs (94.8%). In most subgroups, sensitivity of the preferred definition was also around 60% but varied from 28 to 91%. In an example study comparing death rates between two anticancer drug classes, the claims-based definition provided valid and precise hazard ratios (HRs). In another example study comparing two classes of anti-depressants, the HR with the claims-based definition was biased and had lower precision than that with the gold standard definition. Conclusions/Significance The claims-based definitions of death developed in this study had high specificity and PPVs while sensitivity was around 60%. The definitions will be useful in future studies when used with attention to the possible fluctuation of sensitivity in some subpopulations. PMID:23741526

  9. Advanced Fiber Optic-Based Sensing Technology for Unmanned Aircraft Systems

    NASA Technical Reports Server (NTRS)

    Richards, Lance; Parker, Allen R.; Piazza, Anthony; Ko, William L.; Chan, Patrick; Bakalyar, John

    2011-01-01

    This presentation provides an overview of fiber optic sensing technology development activities performed at NASA Dryden in support of Unmanned Aircraft Systems. Examples of current and previous work are presented in the following categories: algorithm development, system development, instrumentation installation, ground R&D, and flight testing. Examples of current research and development activities are provided.

  10. 26 CFR 1.401(a)(17)-1 - Limitation on annual compensation.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...) of this section provides rules for determining post-effective-date accrued benefits under the fresh.... For example, if a plan has a plan year beginning July 1, 1994, and ending June 30, 1995, the annual... reduction in the 12-month period. For example, if a defined benefit plan provides that the accrual for each...

  11. Application of proteomics to ecology and population biology.

    PubMed

    Karr, T L

    2008-02-01

    Proteomics is a relatively new scientific discipline that merges protein biochemistry, genome biology and bioinformatics to determine the spatial and temporal expression of proteins in cells, tissues and whole organisms. There has been very little application of proteomics to the fields of behavioral genetics, evolution, ecology and population dynamics, and has only recently been effectively applied to the closely allied fields of molecular evolution and genetics. However, there exists considerable potential for proteomics to impact in areas related to functional ecology; this review will introduce the general concepts and methodologies that define the field of proteomics and compare and contrast the advantages and disadvantages with other methods. Examples of how proteomics can aid, complement and indeed extend the study of functional ecology will be discussed including the main tool of ecological studies, population genetics with an emphasis on metapopulation structure analysis. Because proteomic analyses provide a direct measure of gene expression, it obviates some of the limitations associated with other genomic approaches, such as microarray and EST analyses. Likewise, in conjunction with associated bioinformatics and molecular evolutionary tools, proteomics can provide the foundation of a systems-level integration approach that can enhance ecological studies. It can be envisioned that proteomics will provide important new information on issues specific to metapopulation biology and adaptive processes in nature. A specific example of the application of proteomics to sperm ageing is provided to illustrate the potential utility of the approach.

  12. Metagenomic applications in environmental monitoring and bioremediation

    DOE PAGES

    Techtmann, Stephen M.; Hazen, Terry C.

    2016-01-01

    With the rapid advances in sequencing technology, the cost of sequencing has dramatically dropped and the scale of sequencing projects has increased accordingly. This has provided the opportunity for the routine use of sequencing techniques in the monitoring of environmental microbes. While metagenomic applications have been routinely applied to better understand the ecology and diversity of microbes, their use in environmental monitoring and bioremediation is increasingly common. In this review we seek to provide an overview of some of the metagenomic techniques used in environmental systems biology, addressing their application and limitation. We will also provide several recent examples ofmore » the application of metagenomics to bioremediation. We discuss examples where microbial communities have been used to predict the presence and extent of contamination, examples of how metagenomics can be used to characterize the process of natural attenuation by unculturable microbes, as well as examples detailing the use of metagenomics to understand the impact of biostimulation on microbial communities.« less

  13. MO-F-211-01: Methods for Completing Practice Quality Improvement (PQI).

    PubMed

    Johnson, J; Brown, K; Ibbott, G; Pawlicki, T

    2012-06-01

    Practice Quality Improvement (PQI) is becoming an expected part of routine practice in healthcare as an approach to provide more efficient, effective and high quality care. Additionally, as part of the ABR's Maintenance of Certification (MOC) pathway, medical physicists are now expected to complete a PQI project. This session will describe the history behind and benefits of the ABR's MOC program, provide details of quality improvement methods and how to successfully complete a PQI project. PQI methods include various commonly used engineering and management tools. The Plan-Do-Study-Act (PDSA) cycle will be presented as one project planning and implementation tool. Other PQI analysis instruments such as flowcharts, Pareto charts, process control charts and fishbone diagrams will also be explained with examples. Cause analysis, solution development and implementation, and post-implementation measurement will be presented. Project identification and definition as well as appropriate measurement tool selection will be offered. Methods to choose key quality metrics (key quality indicators) will also be addressed. Several sample PQI projects and templates available through the AAPM and other organizations will be described. At least three examples of completed PQI projects will be shared. 1. Identify and define a PQI project 2. Identify and select measurement methods/techniques for use with the PQI project 3. Describe example(s) of completed projects. © 2012 American Association of Physicists in Medicine.

  14. A Player-Centered Approach to Coaching

    ERIC Educational Resources Information Center

    de Souza, Adriano; Oslin, Judy

    2008-01-01

    The purpose of this article is to describe a player-centered approach (PCA), highlighting its qualities, and then to provide examples of its application in coaching and teaching sport. Most of the examples relate to the game of volleyball, but many of the recommendations and examples can be applied to most team sports. The article will conclude…

  15. Using protistan examples to dispel the myths of intelligent design.

    PubMed

    Farmer, Mark A; Habura, Andrea

    2010-01-01

    In recent years the teaching of the religiously based philosophy of intelligent design (ID) has been proposed as an alternative to modern evolutionary theory. Advocates of ID are largely motivated by their opposition to naturalistic explanations of biological diversity, in accordance with their goal of challenging the philosophy of scientific materialism. Intelligent design has been embraced by a wide variety of creationists who promote highly questionable claims that purport to show the inadequacy of evolutionary theory, which they consider to be a threat to a theistic worldview. We find that examples from protistan biology are well suited for providing evidence of many key evolutionary concepts, and have often been misrepresented or roundly ignored by ID advocates. These include examples of adaptations and radiations that are said to be statistically impossible, as well as examples of speciation both in the laboratory and as documented in the fossil record. Because many biologists may not be familiar with the richness of the protist evolution dataset or with ID-based criticisms of evolution, we provide examples of current ID arguments and specific protistan counter-examples.

  16. Multiple Reaction Equilibria--With Pencil and Paper: A Class Problem on Coal Methanation.

    ERIC Educational Resources Information Center

    Helfferich, Friedrich G.

    1989-01-01

    Points out a different and much simpler approach for the study of equilibria of multiple and heterogeneous chemical reactions. A simulation on coal methanation is used to teach the technique. An example and the methodology used are provided. (MVL)

  17. Rooting Out Aberrant Behavior in Training.

    ERIC Educational Resources Information Center

    Kokalis, Jerry, Jr.; Paquin, Dave

    1989-01-01

    Discusses aberrant, or disruptive, behavior in an industrial/business, classroom-based, instructor-led training setting. Three examples of aberrant behavior are described, typical case studies are provided for each, and preventive (long-term) and corrective (on-the-spot) strategies for dealing with the problems are discussed. (LRW)

  18. Integrated Laboratory and Field Investigations: Assessing Contaminant Risk to American Badgers

    EPA Science Inventory

    This manuscript provides an example of integrated laboratory and field approach to complete a toxicological ecological risk assessment at the landscape level. The core findings from the study demonstrate how radio telemetry data can allow for ranking the relative risks of contam...

  19. Conserving carnivorous arthropods: an example from early-season cranberry (Ericaceae) flooding

    USDA-ARS?s Scientific Manuscript database

    Biological control plays an important role in many IPM programs, but can be disrupted by other control strategies, including chemical and cultural controls. In commercial cranberry production, a spring flood can replace an insecticide application, providing an opportunity to study the compatibility ...

  20. Space Industrialization: Manufacturing and Construction Activities. Part 2.

    ERIC Educational Resources Information Center

    Story, Charles H.

    1983-01-01

    Discusses how space industrialization will provide direct benefits for our nation and will transfer technology to the many diverse areas of human activity. Examples are the development of the Space Shuttle, the Space Studies Institute, and the LS Society (advocates for colonizing space). (NRJ)

  1. Alternative Programs for At-Risk Students: Wolves in Sheep's Clothing?

    ERIC Educational Resources Information Center

    Sagor, Richard

    1997-01-01

    Provides a critique of alternative education and details the disadvantages of segregated schooling. Discusses the problems associated with labeling children as "problem students" and outlines ways in which equitable alternative programs can be devised. Gives a case study as an example. (RJM)

  2. Multimodal Counseling of Childhood Encopresis: A Case Example.

    ERIC Educational Resources Information Center

    Gumaer, Jim

    1990-01-01

    Provides information regarding childhood disorder of encopresis and presents multimodal therapy techniques for school counselors who cannot successfully refer clients. Presents a case study of a teenage boy suffering from encopresis who was referred for counseling. Suggests specific treatment strategies including behavior modification, nutrition…

  3. Constructivist Teaching Strategies: Projects in Teacher Education.

    ERIC Educational Resources Information Center

    Brown, Jessie C., Ed.; Adams, Arlene, Ed.

    This book provides information from experienced teachers on constructivist teaching, offering examples of preservice teachers' projects, lesson plans, and real-life advice. The 11 chapters are: (1) "Writing Case Studies: Constructing an Understanding of Student and Classroom" (Bettejim Cates); (2) "Educating Children Who are Racial…

  4. Learning from fellow engineering students who have current professional experience

    NASA Astrophysics Data System (ADS)

    Davies, John W.; Rutherford, Ursula

    2012-08-01

    This paper presents an investigation of how experience-led content in an engineering degree can be strengthened by creating opportunities for engineering students to benefit from the knowledge, skills and resources of students with current professional experience. Students who study civil engineering part-time at Coventry University (while also working in the industry) are being used as mentors for full-time students, and careful attention is being paid to the input they can make to group project work. This paper reviews the results of evaluations of these two initiatives. The clearest enhancement to learning provided by the part-time students in these settings is the access they provide for the full-time students to real examples and the provision of actual physical artefacts such as drawings, photos, example documents and templates. Full-time students also gain an awareness of the value of the professional skills. The study confirms the value of these initiatives and points to future improvements.

  5. Benefits for Women and Men of Inquiry-Based Learning in College Mathematics: A Multi-Institution Study

    ERIC Educational Resources Information Center

    Laursen, Sandra L.; Hassi, Marja-Liisa; Kogan, Marina; Weston, Timothy J.

    2014-01-01

    Slow faculty uptake of research-based, student-centered teaching and learning approaches limits the advancement of U.S. undergraduate mathematics education. A study of inquiry-based learning (IBL) as implemented in over 100 course sections at 4 universities provides an example of such multicourse, multi-institution uptake. Despite variation in how…

  6. Transphobia and Cisgender Privilege: Pre-Service Teachers Recognizing and Challenging Gender Rigidity in Schools

    ERIC Educational Resources Information Center

    Kearns, Laura-Lee; Mitton-Kükner, Jennifer; Tompkins, Joanne

    2017-01-01

    Our study provides examples of how critical curricula and social justice education can be brought together to inform teacher education. Building upon our ongoing longitudinal study, which investigates the impact of an integrated LGBTQ awareness program, we focus in this article on five pre-service teachers who identified critical incidents in…

  7. The Bologna Process in Higher Education: An Exploratory Case Study in a Russian Context

    ERIC Educational Resources Information Center

    Esyutina, Maria; Fearon, Colm; Leatherbarrow, Nicky

    2013-01-01

    Purpose: The aim of the current article is to discuss the role of the Bologna process in enabling quality of educational change, internationalisation and greater mobility using an example case study of a Russian university. Some discussion is provided to offer insights and inform future research and practice. Design/methodology/approach: The…

  8. Strategies for Data Collection in Social Skills Group Interventions: A Case Study

    ERIC Educational Resources Information Center

    Goforth, Anisa N.; Rennie, Brandon J.; Hammond, Julia; Schoffer Closson, Jennifer K.

    2016-01-01

    For many practitioners in schools and clinics, collecting data to show the effectiveness of an intervention is probably one of the most important yet challenging components of intervention implementation. This article provides practitioners with an example case study of how data can be organized and collected to determine the effectiveness of a…

  9. Implementing Service Learning into a Graduate Social Work Course: A Step-by-Step Guide

    ERIC Educational Resources Information Center

    Campbell, Evelyn Marie

    2012-01-01

    Service learning is a powerful pedagogical tool linking community service to academic learning. Several steps are necessary to implement service learning effectively into the curriculum. This study uses a case example as an exploratory study to pilot-test data on how service learning impacts student outcomes. The paper will (1) provide an overview…

  10. Speaking like a "Good American": National Identity and the Legacy of German-Language Education

    ERIC Educational Resources Information Center

    Kibler, Amanda

    2008-01-01

    Background/Context: As a case study in minority language restriction, the German example provides a useful historical counterpoint to more recent debates regarding the place of non-English languages in American schools. Purpose/Objective/Research Question/Focus of Study and Research Design: This historical analysis examines the role of education…

  11. Lineament analysis of mineral areas of interest in Afghanistan

    USGS Publications Warehouse

    Hubbard, Bernard E.; Mack, Thomas J.; Thompson, Allyson L.

    2012-01-01

    The purpose of this report and accompanying GIS data is to provide lineament maps that give one indication of areas that warrant further investigation for optimal bedrock water-well placement within 24 target areas for mineral resources (Peters and others, 2011). These data may also support the identification of faults related to modern seismic hazards (for example, Wheeler and others, 2005; Ruleman and others, 2007), as well as support studies attempting to understand the relationship between tectonic and structural controls on hydrothermal fluid flow, subsequent mineralization, and water-quality issues near mined and unmined mineral deposits (for example, Eppinger and others, 2007).

  12. [Patient-reported and patient-weighted outcomes in ophthalmology].

    PubMed

    Scheibler, F; Finger, R P; Grosselfinger, R; Dintsios, C-M

    2010-03-01

    Considering patients' values and preferences in comparative effectiveness research (CER) is one of the main challenges in ophthalmology (value-based medicine). This article defines core terms in CER. The concept of patient-relevant (or patient-important) outcomes is distinguished from patient-reported outcomes (PRO) by means of examples in the field of ophthalmology. In order to be able to give a consistant recommendation if an intervention leads to conflicting results for different outcomes (trade-off), a ranking of outcomes will be necessary. Examples of studies in glaucoma patients are provided that demonstrate the possibilities of ranking of outcomes based on patient preferences.

  13. Redox Electrocatalysis of Floating Nanoparticles: Determining Electrocatalytic Properties without the Influence of Solid Supports.

    PubMed

    Peljo, Pekka; Scanlon, Micheál D; Olaya, Astrid J; Rivier, Lucie; Smirnov, Evgeny; Girault, Hubert H

    2017-08-03

    Redox electrocatalysis (catalysis of electron-transfer reactions by floating conductive particles) is discussed from the point-of-view of Fermi level equilibration, and an overall theoretical framework is given. Examples of redox electrocatalysis in solution, in bipolar configuration, and at liquid-liquid interfaces are provided, highlighting that bipolar and liquid-liquid interfacial systems allow the study of the electrocatalytic properties of particles without effects from the support, but only liquid-liquid interfaces allow measurement of the electrocatalytic current directly. Additionally, photoinduced redox electrocatalysis will be of interest, for example, to achieve water splitting.

  14. Type II universal spacetimes

    NASA Astrophysics Data System (ADS)

    Hervik, S.; Málek, T.; Pravda, V.; Pravdová, A.

    2015-12-01

    We study type II universal metrics of the Lorentzian signature. These metrics simultaneously solve vacuum field equations of all theories of gravitation with the Lagrangian being a polynomial curvature invariant constructed from the metric, the Riemann tensor and its covariant derivatives of an arbitrary order. We provide examples of type II universal metrics for all composite number dimensions. On the other hand, we have no examples for prime number dimensions and we prove the non-existence of type II universal spacetimes in five dimensions. We also present type II vacuum solutions of selected classes of gravitational theories, such as Lovelock, quadratic and L({{Riemann}}) gravities.

  15. Enhanced Sidescan-Sonar Imagery Offshore of Southeastern Massachusetts

    USGS Publications Warehouse

    Poppe, Lawrence J.; McMullen, Kate Y.; Williams, S. Jeffress; Ackerman, Seth D.; Glomb, K.A.; Forfinski, N.A.

    2008-01-01

    The U.S. Geological Survey (USGS), National Oceanic and Atmospheric Administration (NOAA), and Massachusetts Office of Coastal Zone Management (CZM) have been working cooperatively to map and study the coastal sea floor. The sidescan-sonar imagery collected during NOAA hydrographic surveys has been included as part of these studies. However, the original sonar imagery contains tonal artifacts from environmental noise (for example, sea state), equipment settings (for example, power and gain changes), and processing (for example, inaccurate cross-track and line-to-line normalization), which impart a quilt-like patchwork appearance to the mosaics. These artifacts can obscure the normalized backscatter properties of the sea floor. To address this issue, sidescan-sonar imagery from surveys H11076 and H11079 offshore of southeastern Massachusetts was enhanced by matching backscatter tones of adjacent sidescan-sonar lines. These mosaics provide continuous grayscale perspectives of the backscatter, more accurately reveal the sea-floor geologic trends, and minimize the environment-, acquisition-, and processing-related noise.

  16. The emerging science of quantitative imaging biomarkers terminology and definitions for scientific studies and regulatory submissions.

    PubMed

    Kessler, Larry G; Barnhart, Huiman X; Buckler, Andrew J; Choudhury, Kingshuk Roy; Kondratovich, Marina V; Toledano, Alicia; Guimaraes, Alexander R; Filice, Ross; Zhang, Zheng; Sullivan, Daniel C

    2015-02-01

    The development and implementation of quantitative imaging biomarkers has been hampered by the inconsistent and often incorrect use of terminology related to these markers. Sponsored by the Radiological Society of North America, an interdisciplinary group of radiologists, statisticians, physicists, and other researchers worked to develop a comprehensive terminology to serve as a foundation for quantitative imaging biomarker claims. Where possible, this working group adapted existing definitions derived from national or international standards bodies rather than invent new definitions for these terms. This terminology also serves as a foundation for the design of studies that evaluate the technical performance of quantitative imaging biomarkers and for studies of algorithms that generate the quantitative imaging biomarkers from clinical scans. This paper provides examples of research studies and quantitative imaging biomarker claims that use terminology consistent with these definitions as well as examples of the rampant confusion in this emerging field. We provide recommendations for appropriate use of quantitative imaging biomarker terminological concepts. It is hoped that this document will assist researchers and regulatory reviewers who examine quantitative imaging biomarkers and will also inform regulatory guidance. More consistent and correct use of terminology could advance regulatory science, improve clinical research, and provide better care for patients who undergo imaging studies. © The Author(s) 2014 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.

  17. Methodological triangulation: an approach to understanding data.

    PubMed

    Bekhet, Abir K; Zauszniewski, Jaclene A

    2012-01-01

    To describe the use of methodological triangulation in a study of how people who had moved to retirement communities were adjusting. Methodological triangulation involves using more than one kind of method to study a phenomenon. It has been found to be beneficial in providing confirmation of findings, more comprehensive data, increased validity and enhanced understanding of studied phenomena. While many researchers have used this well-established technique, there are few published examples of its use. The authors used methodological triangulation in their study of people who had moved to retirement communities in Ohio, US. A blended qualitative and quantitative approach was used. The collected qualitative data complemented and clarified the quantitative findings by helping to identify common themes. Qualitative data also helped in understanding interventions for promoting 'pulling' factors and for overcoming 'pushing' factors of participants. The authors used focused research questions to reflect the research's purpose and four evaluative criteria--'truth value', 'applicability', 'consistency' and 'neutrality'--to ensure rigour. This paper provides an example of how methodological triangulation can be used in nursing research. It identifies challenges associated with methodological triangulation, recommends strategies for overcoming them, provides a rationale for using triangulation and explains how to maintain rigour. Methodological triangulation can be used to enhance the analysis and the interpretation of findings. As data are drawn from multiple sources, it broadens the researcher's insight into the different issues underlying the phenomena being studied.

  18. Earthquake ground motion: Chapter 3

    USGS Publications Warehouse

    Luco, Nicolas; Kircher, Charles A.; Crouse, C. B.; Charney, Finley; Haselton, Curt B.; Baker, Jack W.; Zimmerman, Reid; Hooper, John D.; McVitty, William; Taylor, Andy

    2016-01-01

    Most of the effort in seismic design of buildings and other structures is focused on structural design. This chapter addresses another key aspect of the design process—characterization of earthquake ground motion into parameters for use in design. Section 3.1 describes the basis of the earthquake ground motion maps in the Provisions and in ASCE 7 (the Standard). Section 3.2 has examples for the determination of ground motion parameters and spectra for use in design. Section 3.3 describes site-specific ground motion requirements and provides example site-specific design and MCER response spectra and example values of site-specific ground motion parameters. Section 3.4 discusses and provides an example for the selection and scaling of ground motion records for use in various types of response history analysis permitted in the Standard.

  19. Plain words for nurses Alison Turnbull Plain words for nurses The Foundation of Nursing Studies 86 pages £6.50 0 9540091 0 X 095400910X [Formula: see text].

    PubMed

    2002-03-01

    This inspirational publication is one that practises what it preaches. It is about clear writing and provides very useful guidance to the nursing professional who wants to get an unclouded message across. It provides useful examples throughout to guide the reader and highlights how simple interventions can make big improvements.

  20. The Role and Experiences of Teaching English to Speakers of Other Languages (ESOL) in the Elementary General Education Classroom: Perceptions of ESOL Teachers

    ERIC Educational Resources Information Center

    Platt, Heidi Halligan

    2017-01-01

    This study examined how ESOL teachers working with grades K-6 th provide ESOL services in the general education classroom. ESOL teachers were asked to describe and define their roles and provide examples of different language development activities. In addition, the perceptions and overall experiences of the ESOL teachers were analyzed. A basic…

  1. Aircrew Discourse: Exploring Strategies of Information and Action Management

    NASA Technical Reports Server (NTRS)

    Irwin, Cheryl M.; Veinott, Elizabeth S.; Shafto, Michael G. (Technical Monitor)

    1995-01-01

    This paper explores methodology issues encountered in the analysis of flightcrew communications in aviation simulation research. Examples are provided by two recent studies which are compared on three issues: level of analysis, data definition, and interpretation of the results. The data discussed were collected in a study comparing two levels of aircraft automation. The first example is an investigation of how pilots' information transfer strategies differed as a function of automation during low and high-workload flight phases. The second study focuses on how crews managed actions in the two aircraft during a ten minute, high-workload flight segment. Results indicated that crews in the two aircraft differed in their strategies of information and action management. The differences are discussed in terms of their operational and research significance.

  2. Risk assessment and optimization (ALARA) analysis for the environmental remediation of Brookhaven National Laboratory`s hazardous waste management facility

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

    Dionne, B.J.; Morris, S.C. III; Baum, J.W.

    1998-01-01

    The Department of Energy`s (DOE) Office of Environment, Safety, and Health (EH) sought examples of risk-based approaches to environmental restoration to include in their guidance for DOE nuclear facilities. Extensive measurements of radiological contamination in soil and ground water have been made at Brookhaven National Laboratory`s Hazardous Waste Management Facility (HWMF) as part of a Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) remediation process. This provided an ideal opportunity for a case study. This report provides a risk assessment and an {open_quotes}As Low as Reasonably Achievable{close_quotes} (ALARA) analysis for use at other DOE nuclear facilities as an example ofmore » a risk-based decision technique. This document contains the Appendices for the report.« less

  3. Exploring Human Diseases and Biological Mechanisms by Protein Structure Prediction and Modeling.

    PubMed

    Wang, Juexin; Luttrell, Joseph; Zhang, Ning; Khan, Saad; Shi, NianQing; Wang, Michael X; Kang, Jing-Qiong; Wang, Zheng; Xu, Dong

    2016-01-01

    Protein structure prediction and modeling provide a tool for understanding protein functions by computationally constructing protein structures from amino acid sequences and analyzing them. With help from protein prediction tools and web servers, users can obtain the three-dimensional protein structure models and gain knowledge of functions from the proteins. In this chapter, we will provide several examples of such studies. As an example, structure modeling methods were used to investigate the relation between mutation-caused misfolding of protein and human diseases including epilepsy and leukemia. Protein structure prediction and modeling were also applied in nucleotide-gated channels and their interaction interfaces to investigate their roles in brain and heart cells. In molecular mechanism studies of plants, rice salinity tolerance mechanism was studied via structure modeling on crucial proteins identified by systems biology analysis; trait-associated protein-protein interactions were modeled, which sheds some light on the roles of mutations in soybean oil/protein content. In the age of precision medicine, we believe protein structure prediction and modeling will play more and more important roles in investigating biomedical mechanism of diseases and drug design.

  4. RNA Structures as Mediators of Neurological Diseases and as Drug Targets.

    PubMed

    Bernat, Viachaslau; Disney, Matthew D

    2015-07-01

    RNAs adopt diverse folded structures that are essential for function and thus play critical roles in cellular biology. A striking example of this is the ribosome, a complex, three-dimensionally folded macromolecular machine that orchestrates protein synthesis. Advances in RNA biochemistry, structural and molecular biology, and bioinformatics have revealed other non-coding RNAs whose functions are dictated by their structure. It is not surprising that aberrantly folded RNA structures contribute to disease. In this Review, we provide a brief introduction into RNA structural biology and then describe how RNA structures function in cells and cause or contribute to neurological disease. Finally, we highlight successful applications of rational design principles to provide chemical probes and lead compounds targeting structured RNAs. Based on several examples of well-characterized RNA-driven neurological disorders, we demonstrate how designed small molecules can facilitate the study of RNA dysfunction, elucidating previously unknown roles for RNA in disease, and provide lead therapeutics. Copyright © 2015 Elsevier Inc. All rights reserved.

  5. Multiple Choice Knapsack Problem: example of planning choice in transportation.

    PubMed

    Zhong, Tao; Young, Rhonda

    2010-05-01

    Transportation programming, a process of selecting projects for funding given budget and other constraints, is becoming more complex as a result of new federal laws, local planning regulations, and increased public involvement. This article describes the use of an integer programming tool, Multiple Choice Knapsack Problem (MCKP), to provide optimal solutions to transportation programming problems in cases where alternative versions of projects are under consideration. In this paper, optimization methods for use in the transportation programming process are compared and then the process of building and solving the optimization problems is discussed. The concepts about the use of MCKP are presented and a real-world transportation programming example at various budget levels is provided. This article illustrates how the use of MCKP addresses the modern complexities and provides timely solutions in transportation programming practice. While the article uses transportation programming as a case study, MCKP can be useful in other fields where a similar decision among a subset of the alternatives is required. Copyright 2009 Elsevier Ltd. All rights reserved.

  6. Accounting for between-study variation in incremental net benefit in value of information methodology.

    PubMed

    Willan, Andrew R; Eckermann, Simon

    2012-10-01

    Previous applications of value of information methods for determining optimal sample size in randomized clinical trials have assumed no between-study variation in mean incremental net benefit. By adopting a hierarchical model, we provide a solution for determining optimal sample size with this assumption relaxed. The solution is illustrated with two examples from the literature. Expected net gain increases with increasing between-study variation, reflecting the increased uncertainty in incremental net benefit and reduced extent to which data are borrowed from previous evidence. Hence, a trial can become optimal where current evidence is sufficient assuming no between-study variation. However, despite the expected net gain increasing, the optimal sample size in the illustrated examples is relatively insensitive to the amount of between-study variation. Further percentage losses in expected net gain were small even when choosing sample sizes that reflected widely different between-study variation. Copyright © 2011 John Wiley & Sons, Ltd.

  7. Chapter 10. Developing a habitat monitoring program: three examples from national forest planning

    Treesearch

    Michael I. Goldstein; Lowell H. Suring; Christina D. Vojta; Mary M. Rowland; Clinton. McCarthy

    2013-01-01

    This chapter reviews the process steps of wildlife habitat monitoring described in chapters 2 through 9 and provides three case examples that illustrate how the process steps apply to specific situations. It provides the reader an opportunity to synthesize the material while also revealing the potential knowledge gaps and pitfalls that may complicate completion of a...

  8. Enabling Prosecutors To Address Drug, Gang, and Youth Violence. Juvenile Accountability Incentive Block Grants (JAIBG) Program Bulletin.

    ERIC Educational Resources Information Center

    Gramckow, Heike P.; Tompkins, Elena

    This bulletin offers data on recent trends in juvenile violence, juvenile drug offenses, and gang-related juvenile offending, and describes prosecutorial responses to such offenses. Examples of promising prosecutor-led programs combating the illicit use of guns, violence, drugs, and gangs are also provided. These examples provide a range of ideas…

  9. Carrots and sticks: compliance provisions in state competitive food laws-examples for state and local implementation of the updated USDA standards.

    PubMed

    Gourdet, Camille K; Chriqui, Jamie F; Piekarz, Elizabeth; Dang, Quang; Chaloupka, Frank J

    2014-07-01

    Competitive foods remain prevalent in schools even though the majority of states' laws have addressed this for several years. Whereas updated federal standards take effect during school year 2014-2015, aspects of competitive food regulation will remain relegated to the states and districts and concerns exist about compliance with the federal standards. This study examined compliance provisions codified into state law that focused on incentives, monetary penalties, or contracts which could provide examples for other jurisdictions. Codified statutory and administrative laws effective as of January 2013 for all 50 states and the District of Columbia were compiled using Boolean searches in Lexis-Nexis and Westlaw. All laws were analyzed by 2 study authors to determine the presence and components of relevant provisions. Eighteen states' laws contained compliance mechanisms including financial and/or programmatic incentives (5 states), contract provisions (11 states), and monetary penalties for noncompliance (7 states). Five states' laws contained a combination of approaches. Compliance measures help to strengthen competitive food laws by providing state agencies with an enforcement mechanism. Enforcing such provisions will help to create healthier school environments. This study will provide useful insight for governments at all levels as they implement competitive food laws. © 2014, American School Health Association.

  10. An Exploratory Study of Inner-City College Athletes and Crime: Socialization, Risk, Strategy, and Hope

    ERIC Educational Resources Information Center

    Davis, Dexter Juan

    2012-01-01

    An exploratory study was conducted to focus on what is being done to help college athletes stay out of trouble and avoid activities that may lead to crime and/or criminal activity. The study was designed to find real examples of poor decisions and/or productive decisions made by athletes in order to provide for a rich learning opportunity. Crimes…

  11. The Role of Mental Models in Learning to Program.

    ERIC Educational Resources Information Center

    Pirolli, Peter L.; Anderson, John R.

    This study reports two experiments which indicate that the processes of providing subjects with insightful representations of example programs and guiding subjects through an "ideal" problem solving strategy facilitate learning. A production system model (GRAPES) has been developed that simulates problem-solving and learning in the…

  12. Research Paradigms, Television, and Social Behavior.

    ERIC Educational Resources Information Center

    Asamen, Joy Keiko, Ed.; Berry, Gordon L., Ed.

    Straightforward and engaging in style, this book presents 10 essays that provide concrete, step-by-step examples of how to conduct studies of the impact of television on behavior from quantitative perspectives, qualitative perspectives, and an integrated approach, making the volume useful for both undergraduate and graduate students. Its…

  13. Innovations in Site Characterization: Streamlining Cleanup at Vapor Intrusion and Product Removal Sites Using the Triad Approach: Hartford Plume Site, Hartford, Illinois

    EPA Pesticide Factsheets

    The Hartford Plume Site case study provides a detailed example of the strategies and technologies used at the site that are available to environmental practitioners to use at large and small hydrocarbon sites.

  14. Population genomics of divergence among extreme and intermediate color forms in a polymorphic insect

    USDA-ARS?s Scientific Manuscript database

    Geographic variation in insect coloration is among the most intriguing examples of rapid phenotypic evolution and provides ideal opportunities to study the mechanisms of phenotypic change and diversification in closely related lineages. The bumble bee Bombus bifarius comprises two geographically dis...

  15. 26 CFR 1.25A-5 - Special rules relating to characterization and timing of payments.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... also provides Student A with an education loan and pays Student A for working in a work/study job in...,000. Example 2. (i) In December 1998, Student B, a senior at College Y, pays $2,000 for qualified...

  16. Rough flows and homogenization in stochastic turbulence

    NASA Astrophysics Data System (ADS)

    Bailleul, I.; Catellier, R.

    2017-10-01

    We provide in this work a tool-kit for the study of homogenisation of random ordinary differential equations, under the form of a friendly-user black box based on the technology of rough flows. We illustrate the use of this setting on the example of stochastic turbulence.

  17. Biological science in Oregon

    USGS Publications Warehouse

    Thorsteinson, Lyman

    2005-01-01

    Fishing is an important part of Oregon's culture. The Western Fisheries Research Center (WFRC) has been conducting research in Oregon for many years to provide information that can be used by managers to help keep fish and other parts of the ecosystem healthy. Below are examples of some of WFRC's studies.

  18. Narrative Counseling for Professional School Counselors

    ERIC Educational Resources Information Center

    Nafziger, Jacinta; DeKruyf, Lorraine

    2013-01-01

    This article introduces narrative counseling concepts and techniques for professional school counselors. The authors provide a case study of narrative school counseling with an elementary student struggling with selective mutism. Examples also demonstrate how a narrative approach could be used at elementary, middle, and high school levels within…

  19. Integrating Mediators and Moderators in Research Design

    ERIC Educational Resources Information Center

    MacKinnon, David P.

    2011-01-01

    The purpose of this article is to describe mediating variables and moderating variables and provide reasons for integrating them in outcome studies. Separate sections describe examples of moderating and mediating variables and the simplest statistical model for investigating each variable. The strengths and limitations of incorporating mediating…

  20. Educational Guidance for Adults. Identifying Competences.

    ERIC Educational Resources Information Center

    Oakeshott, Martin

    A brief study conducted for the Further Education Unit, Great Britain, defined the competencies associated with educational guidance for adults. The objective was to develop a qualification for educational guidance workers with adults. The project provided an example of applying a competence model to a "higher level" interpersonal field…

  1. Maker Culture and "Minecraft": Implications for the Future of Learning

    ERIC Educational Resources Information Center

    Niemeyer, Dodie J.; Gerber, Hannah R.

    2015-01-01

    Collaborative learning environments found with gaming communities can provide excellent structures to study the way that learners act within informal learning environments. For example, many of these gaming communities encourage gamers to create videogames and virtual world walkthroughs and commentaries. Walkthroughs and commentaries provide…

  2. Fiber-Optic Sensing for In-Space Inspection

    NASA Technical Reports Server (NTRS)

    Pena, Francisco; Richards, W. Lance; Piazza, Anthony; Parker, Allen R.; Hudson, Larry D.

    2014-01-01

    This presentation provides examples of fiber optic sensing technology development activities performed at NASA Armstrong. Examples of current and previous work that support in-space inspection techniques and methodologies are highlighted.

  3. White-tailed deer age ratios as herd management and predator impact measures in Pennsylvania

    USGS Publications Warehouse

    Rosenberry, Christopher S.; Norton, Andrew S.; Diefenbach, Duane R.; Fleegle, Jeannine T.; Wallingford, Bret D.

    2011-01-01

    A review of the Pennsylvania Game Commission's (PGC) deer management program and public concern about predator impacts on deer (Odocoileus virginianus) populations compelled the PGC to investigate the role of age ratios in developing management recommendations. Age ratios, such as proportion of juveniles in the antlerless harvest, may provide an index to population productivity and predator impacts. We estimated proportion of juveniles in the antlerless harvest from hunter-killed deer, population trends using the Pennsylvania (USA) sex–age–kill model, and reproduction from road-killed females. Using these estimates and a simulation model, we concluded that no single age-ratio value would serve as a reliable measure of population status. Wildlife Management Unit-specific trends in proportion of juveniles in the antlerless harvest and population trends provided the most relevant management information. We also provide an example decision chart to guide management actions in response to declining age ratios in the harvest. Although predator management activities and juvenile survival studies are often desired by the public, our decision-chart example indicated a number of deer management options exist before investing resources in predator management activities and juvenile survival studies.

  4. A guide to Ussing chamber studies of mouse intestine

    PubMed Central

    Clarke, Lane L.

    2009-01-01

    The Ussing chamber provides a physiological system to measure the transport of ions, nutrients, and drugs across various epithelial tissues. One of the most studied epithelia is the intestine, which has provided several landmark discoveries regarding the mechanisms of ion transport processes. Adaptation of this method to mouse intestine adds the dimension of investigating genetic loss or gain of function as a means to identify proteins or processes affecting transepithelial transport. In this review, the principles underlying the use of Ussing chambers are outlined including limitations and advantages of the technique. With an emphasis on mouse intestinal preparations, the review covers chamber design, commercial equipment sources, tissue preparation, step-by-step instruction for operation, troubleshooting, and examples of interpretation difficulties. Specialized uses of the Ussing chamber such as the pH stat technique to measure transepithelial bicarbonate secretion and isotopic flux methods to measure net secretion or absorption of substrates are discussed in detail, and examples are given for the adaptation of Ussing chamber principles to other measurement systems. The purpose of the review is to provide a practical guide for investigators who are new to the Ussing chamber method. PMID:19342508

  5. Developments in coupled solid-phase extraction-capillary electrophoresis 2013-2015.

    PubMed

    Ramautar, Rawi; Somsen, Govert W; de Jong, Gerhardus J

    2016-01-01

    An overview of the design and application of coupled solid-phase extraction-capillary electrophoresis (SPE-CE) systems reported in the literature between July 2013 and June 2015 is provided in this paper. The present article is a continuation of our previous review papers on this topic which covered the time period 2000-2013 (Electrophoresis 2008, 29, 108-128; Electrophoresis 2010, 31, 44-54; Electrophoresis 2012, 33, 243-250; Electrophoresis 2014, 35, 128-137). The use of in-line and on-line SPE-CE approaches is treated and outlined in this review. Recent advancements, such as, for example, the use of aptamers as affinity material for in-line SPE-CE, the use of a bead string design for in-line fritless SPE-CE, and new interfacing techniques for the on-line coupling of SPE to CE, are outlined. Selected examples demonstrate the applicability of the coupled SPE-CE systems for biomedical, pharmaceutical, environmental, and food studies. A complete overview of the recent SPE-CE studies is given in table format, providing information on sample type, SPE sorbent, coupling mode, detection mode, and LOD. Finally, some general conclusions and perspectives are provided. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  6. Isolating the Effects of Training Using Simple Regression Analysis: An Example of the Procedure.

    ERIC Educational Resources Information Center

    Waugh, C. Keith

    This paper provides a case example of simple regression analysis, a forecasting procedure used to isolate the effects of training from an identified extraneous variable. This case example focuses on results of a three-day sales training program to improve bank loan officers' knowledge, skill-level, and attitude regarding solicitation and sale of…

  7. Ubiquitous Geometry: Some Examples Showing the Significance of Size and Shape in the Works of Man and Nature.

    ERIC Educational Resources Information Center

    Bachman, C. H.

    1988-01-01

    Presents examples to show the ubiquitous nature of geometry. Illustrates the relationship between the perimeter and area of two-dimensional objects and between the area and volume of three-dimensional objects. Provides examples of distribution systems, optimum shapes, structural strength, biological heat engines, man's size, and reflection and…

  8. Introducing Abelian Groups Using Bullseyes and Jenga

    ERIC Educational Resources Information Center

    Smith, Michael D.

    2016-01-01

    The purpose of this article is to share a new approach for introducing students to the definition and standard examples of Abelian groups. The definition of an Abelian group is revised to include six axioms. A bullseye provides a way to visualize elementary examples and non-examples of Abelian groups. An activity based on the game of Jenga is used…

  9. Alternative Fuels Data Center: Memorandums of Understanding-Broadening

    Science.gov Websites

    to more affordable NGVs for government fleets. In Oklahoma, for example, the post-RFP cost of a Dodge commented. In another example, the Oklahoma Secretary of Energy and Environment held a series of town hall releasing NGV models and providing additional options for consumers and fleets alike. For example, General

  10. 78 FR 13797 - Ex Parte Cease and Desist and Summary Seizure Orders-Multiple Employer Welfare Arrangements

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-01

    ... beneficiaries or other actions that endanger the public welfare. As an example, in U.S. v. William Madison...)-(4) also provide examples of conduct that falls within those standards. A single act or omission... order. However, because the categories set forth in the statute are broad and overlapping, the examples...

  11. Neural-Network Computer Transforms Coordinates

    NASA Technical Reports Server (NTRS)

    Josin, Gary M.

    1990-01-01

    Numerical simulation demonstrated ability of conceptual neural-network computer to generalize what it has "learned" from few examples. Ability to generalize achieved with even simple neural network (relatively few neurons) and after exposure of network to only few "training" examples. Ability to obtain fairly accurate mappings after only few training examples used to provide solutions to otherwise intractable mapping problems.

  12. Multiple proton decays of 6Be, 8C, 8B(IAS) and excited states in 10C

    NASA Astrophysics Data System (ADS)

    Sobotka, Lee

    2011-10-01

    Recent technical advances have allowed for high-order correlation experiments to be done. We have primarily focused on experiments in which the final channels are composed of only alphas and protons. Four cases we have studied are: 6Be, 10C*, 8C, and 8B*(IAS) via 3, 4, 5, and 3-particle correlation measurements, respectively. While the first case had been studied before, our work presents very high statistics in the full Jacobi coordinates (the coordinates needed to describe 3-body decay.) Our study of 10C excited states provides isolatable examples of: correlated 2p decay, from one state, and the decay of another which is unusually highly correlated, a ``ménage a quatre.'' 8C decay presents the only case of sequential 3-body 2p decay steps (i.e. 2p-2p.) The intermediate in this 2-step process is the first example (6Be) mentioned above. Unlike the well-studied second step (6Be decay), the first step in this 2p-2p process provides another example of correlated 2p emission. The decay of 8B(IAS), the isobaric analog of 8C, also decays overwhelmingly by 2p emission, in this case to 6Li(IAS). This IAS-to-IAS 2p decay is one for which decay to the potential 1p intermediates is energetically allowed but isospin forbidden. This represents an expansion, over that originally envisioned by Goldanski, of the conceivable nuclear territory for 2p decay.

  13. Distance mentoring of health researchers: Three case studies across the career-development trajectory.

    PubMed

    Xu, Xiaomeng; Schneider, Margaret; DeSorbo-Quinn, Alexandra L; King, Abby C; Allegrante, John P; Nigg, Claudio R

    2017-01-01

    Despite the crucial role of mentoring, little literature exists that addresses distance mentoring among health researchers. This article provides three case studies showcasing protégés at different stages of career development (one in graduate school, one as an early-stage researcher, and one as an established researcher). Each case study provides a brief history of the relationship, examines the benefits and challenges of working together at a distance, and discusses the lessons learned from both the mentor and the protégé over the course of these relationships. A mentoring model, examples of mentoring communications, and potential promising practices are also provided and discussed.

  14. The NASA Electronic Parts and Packaging (NEPP) Program - NASA Items of Interest

    NASA Technical Reports Server (NTRS)

    LaBel, Kenneth A.; Sampson, Michael J.

    2017-01-01

    This presentation provides a background summary of the NEPP Program, its origins and operating principles followed by examples of issues and opportunities that NEPP is currently pursuing. These examples include Electrostatic Discharge protection procedures that are not being properly applied, one reason for which is the confusion caused by the numerous, different standards covering this topic. Updates are provided for key activities in radiation hardness assurance, and the evaluation of automotive grade electronic parts for use in space applications. Some recent examples of part problems experienced by NASA are briefly described and the latest trending of incidences of counterfeit electronic parts is shown graphically. Finally some forward actions are identified and the time, place and typical topics is provided for the next NEPP Electronic Technology Workshop (ETW).

  15. EARLY EVALUATION OF NEW HEALTH TECHNOLOGIES: THE CASE FOR PREMARKET STUDIES THAT HARMONIZE REGULATORY AND COVERAGE PERSPECTIVES.

    PubMed

    Levin, Leslie

    2015-01-01

    With an increasing awareness that active engagement between policy decision makers, HTA agencies, regulators and payers with industry in the premarket space is needed, a disruptive comprehensive approach is described which moves the evidentiary process exclusively into this space. Single harmonized studies pre-market to address regulatory and coverage needs and expectations are more likely to be efficient and less costly and position evidence to drive rather than test innovation. An example of such a process through the MaRS EXCITE program in Ontario, Canada, now undergoing proof of concept, is briefly discussed. Other examples of dialogue between decision makers and industry pre-market are provided though these are less robust than a comprehensive evidentiary approach.

  16. Gender disparities in health care.

    PubMed

    Kent, Jennifer A; Patel, Vinisha; Varela, Natalie A

    2012-01-01

    The existence of disparities in delivery of health care has been the subject of increased empirical study in recent years. Some studies have suggested that disparities between men and women exist in the diagnoses and treatment of health conditions, and as a result measures have been taken to identify these differences. This article uses several examples to illustrate health care gender bias in medicine. These examples include surgery, peripheral artery disease, cardiovascular disease, critical care, and cardiovascular risk factors. Additionally, we discuss reasons why these issues still occur, trends in health care that may address these issues, and the need for acknowledgement of the current system's inequities in order to provide unbiased care for women in the future. © 2012 Mount Sinai School of Medicine.

  17. Using rapid reviews: an example from a study conducted to inform policy-making.

    PubMed

    O'Leary, Denise F; Casey, Mary; O'Connor, Laserina; Stokes, Diarmuid; Fealy, Gerard M; O'Brien, Denise; Smith, Rita; McNamara, Martin S; Egan, Claire

    2017-03-01

    A discussion of the potential use of rapid review approaches in nursing and midwifery research which presents a worked example from a study conducted to inform policy decision-making. Rapid reviews, which can be defined as outputs of a knowledge synthesis approach that involves modifying or omitting elements of a systematic review process due to limited time or resources, are becoming increasingly popular in health research. This paper provides guidance on how a rapid review can be undertaken and discusses the strengths and challenges of the approach. Data from a rapid review of the literature undertaken in 2015 is used as a worked example to highlight one method of undertaking a rapid review. Seeking evidence to inform health policy-making or evidence based practice is a process that can be limited by time constraints, making it difficult to conduct comprehensive systematic reviews. Rapid reviews provide a solution as they are a systematic method of synthesizing evidence quickly. There is no single best way to conduct a rapid review but researchers can ensure they are adhering to best practice by being systematic, having subject and methodological expertise on the review team, reporting the details of the approach they took, highlighting the limitations of the approach, engaging in good evidence synthesis and communicating regularly with end users, other team members and experts. © 2016 John Wiley & Sons Ltd.

  18. --No Title--

    Science.gov Websites

    will be useful, for example, in providing initial and/or lateral boundary conditions for regional reforecasts with various limited-area models. To access a subset of model output, for example a small number

  19. Application of the BRAFO tiered approach for benefit-risk assessment to case studies on dietary interventions.

    PubMed

    Verhagen, Hans; Andersen, Rikke; Antoine, Jean-Michel; Finglas, Paul; Hoekstra, Jeljer; Kardinaal, Alwine; Nordmann, Hervé; Pekcan, Gülden; Pentieva, Kristina; Sanders, Tom A; van den Berg, Henk; van Kranen, Henk; Chiodini, Alessandro

    2012-11-01

    The respective examples, described in this paper, illustrate how the BRAFO-tiered approach, on benefit-risk assessment, can be tested on a wide range of case studies. Various results were provided, ranging from a quick stop as the result of non-genuine benefit-risk questions to continuation through the tiers into deterministic/probabilistic calculations. The paper illustrates the assessment of benefits and risks associated with dietary interventions. The BRAFO tiered approach is tested with five case studies. In each instance, the benefit-risk approach is tested on the basis of existing evaluations for the individual effects done by others; no new risk or benefit evaluations were made. The following case studies were thoroughly analysed: an example of food fortification, folic acid fortification of flour, macronutrient replacement/food substitution; the isocaloric replacement of saturated fatty acids with carbohydrates; the replacement of saturated fatty acids with monounsaturated fatty acids; the replacement of sugar-sweetened beverages containing mono- and disaccharides with low calorie sweeteners and an example of addition of specific ingredients to food: chlorination of drinking water. Copyright © 2011 ILSI Europe. Published by Elsevier Ltd.. All rights reserved.

  20. Legal issues in governing genetic biobanks: the Italian framework as a case study for the implications for citizen's health through public-private initiatives.

    PubMed

    Piciocchi, Cinzia; Ducato, Rossana; Martinelli, Lucia; Perra, Silvia; Tomasi, Marta; Zuddas, Carla; Mascalzoni, Deborah

    2018-04-01

    This paper outlines some of the challenges faced by regulation of genetic biobanking, using case studies coming from the Italian legal system. The governance of genetic resources in the context of genetic biobanks in Italy is discussed, as an example of the stratification of different inputs and rules: EU law, national law, orders made by authorities and soft law, which need to be integrated with ethical principles, technological strategies and solutions. After providing an overview of the Italian legal regulation of genetic data processing, it considers the fate of genetic material and IP rights in the event of a biobank's insolvency. To this end, it analyses two case studies: a controversial bankruptcy case which occurred in Sardinia, one of the first examples of private and public partnership biobanks. Another case study considered is the Chris project: an example of partnership between a research institute in Bolzano and the South Tyrolean Health System. Both cases seem to point in the same direction, suggesting expediency of promoting and improving public-private partnerships to manage biological tissues and biotrust to conciliate patent law and public interest.

  1. The ratio method: A new tool to study one-neutron halo nuclei

    DOE PAGES

    Capel, Pierre; Johnson, R. C.; Nunes, F. M.

    2013-10-02

    Recently a new observable to study halo nuclei was introduced, based on the ratio between breakup and elastic angular cross sections. This new observable is shown by the analysis of specific reactions to be independent of the reaction mechanism and to provide nuclear-structure information of the projectile. Here we explore the details of this ratio method, including the sensitivity to binding energy and angular momentum of the projectile. We also study the reliability of the method with breakup energy. Lastly, we provide guidelines and specific examples for experimentalists who wish to apply this method.

  2. The Science Manager's Guide to Case Studies

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

    Branch, Kristi M.; Peffers, Melissa S.; Ruegg, Rosalie T.

    2001-09-24

    This guide takes the science manager through the steps of planning, implementing, validating, communicating, and using case studies. It outlines the major methods of analysis, describing their relative merits and applicability while providing relevant examples and sources of additional information. Well-designed case studies can provide a combination of rich qualitative and quantitative information, offering valuable insights into the nature, outputs, and longer-term impacts of the research. An objective, systematic, and credible approach to the evaluation of U.S. Department of Energy Office of Science programs adds value to the research process and is the subject of this guide.

  3. Probability of Detection (POD) as a statistical model for the validation of qualitative methods.

    PubMed

    Wehling, Paul; LaBudde, Robert A; Brunelle, Sharon L; Nelson, Maria T

    2011-01-01

    A statistical model is presented for use in validation of qualitative methods. This model, termed Probability of Detection (POD), harmonizes the statistical concepts and parameters between quantitative and qualitative method validation. POD characterizes method response with respect to concentration as a continuous variable. The POD model provides a tool for graphical representation of response curves for qualitative methods. In addition, the model allows comparisons between candidate and reference methods, and provides calculations of repeatability, reproducibility, and laboratory effects from collaborative study data. Single laboratory study and collaborative study examples are given.

  4. Devices, systems, and methods for conducting assays with improved sensitivity using sedimentation

    DOEpatents

    Schaff, Ulrich Y.; Koh, Chung-Yan; Sommer, Gregory J.

    2016-04-05

    Embodiments of the present invention are directed toward devices, systems, and method for conducting assays using sedimentation. In one example, a method includes layering a mixture on a density medium, subjecting sedimentation particles in the mixture to sedimentation forces to cause the sedimentation particles to move to a detection area through a density medium, and detecting a target analyte in a detection region of the sedimentation channel. In some examples, the sedimentation particles and labeling agent may have like charges to reduce non-specific binding of labeling agent and sedimentation particles. In some examples, the density medium is provided with a separation layer for stabilizing the assay during storage and operation. In some examples, the sedimentation channel may be provided with a generally flat sedimentation chamber for dispersing the particle pellet over a larger surface area.

  5. Devices, systems, and methods for conducting assays with improved sensitivity using sedimentation

    DOEpatents

    Schaff, Ulrich Y; Koh, Chung-Yan; Sommer, Gregory J

    2015-02-24

    Embodiments of the present invention are directed toward devices, systems, and method for conducting assays using sedimentation. In one example, a method includes layering a mixture on a density medium, subjecting sedimentation particles in the mixture to sedimentation forces to cause the sedimentation particles to move to a detection area through a density medium, and detecting a target analyte in a detection region of the sedimentation channel. In some examples, the sedimentation particles and labeling agent may have like charges to reduce non-specific binding of labeling agent and sedimentation particles. In some examples, the density medium is provided with a separation layer for stabilizing the assay during storage and operation. In some examples, the sedimentation channel may be provided with a generally flat sedimentation chamber for dispersing the particle pellet over a larger surface area.

  6. Reporting What Readers Need to Know about Education Research Measures: A Guide. REL 2014-064

    ERIC Educational Resources Information Center

    Boller, Kimberly; Kisker, Ellen Eliason

    2014-01-01

    This guide is designed to help researchers make sure that their research reports include enough information about study measures so that readers can assess the quality of the study's methods and results. The guide also provides examples of write-ups about measures and suggests resources for learning more about these topics. The guide assumes…

  7. The Scientific Study of Politics: An Approach to Foreign Policy Analysis. University Program -- Modular Studies in Political Science.

    ERIC Educational Resources Information Center

    Singer, J. David

    Offering a new approach to college publishing, the sample module presented here serves as an example of a basic unit from University Programs. Typical modules (each 16 to 64 pages), directed toward graduate and undergraduate students, provide original statements on central concepts, principles, theories, or problems in a particular discipline and…

  8. How Marketing Practices Affect Education: A Comparative Case Study of Canada, the United States and Australia

    ERIC Educational Resources Information Center

    Eaton, Sarah Elaine; Goddard, J. Tim

    2007-01-01

    This paper examines the theory and practice of the commercialization of education in Canada, using comparative examples from the United States and Australia. Critical theory provides the framework for the study. From the broad focus of business practice, the examination is narrowed down to marketing, and even further to branding, at all levels,…

  9. The Formation of the Willing Citizen -- Tracing Reactive Nihilism in Late Capitalist Adult Education

    ERIC Educational Resources Information Center

    Olson, Maria; Dahlstedt, Magnus; Fejes, Andreas; Sandberg, Fredrik

    2018-01-01

    The role of education in citizen training has been well mapped out in youth education. What has been less studied is how this role comes into being in adult education. By providing illustrative empirical examples from a recently completed study of adult students enrolled in adult education, this article aims to offer a theoretical response to the…

  10. So Much Social Media, so Little Time: Using Student Feedback to Guide Academic Library Social Media Strategy

    ERIC Educational Resources Information Center

    Brookbank, Elizabeth

    2015-01-01

    The majority of college students use social media of some kind, and academic libraries are increasingly using social media to reach them. Although studies have analyzed which platforms academic libraries most commonly use and case studies have provided examples of how libraries use specific platforms, there are few examinations of the usage habits…

  11. Enhancing Technology Education by Forming Links with Industry: A New Zealand Case Study

    ERIC Educational Resources Information Center

    Brunton, Margaret; Coll, Richard K.

    2005-01-01

    The New Zealand technology curriculum suggests that schools should seek to develop links with industry as a means of providing real-world examples of technology practice. However, if a school is to form links, what form might such links take, and with whom should they be made? The case study research reported here represents an investigation into…

  12. 77 FR 1073 - Privacy Act of 1974; Report of an Altered System of Records, Including Addition of Routine Uses...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-09

    ... participation in a research study (routine use 3). (g) Providing for disclosure to the public of information... investigators who conduct research of products regulated by FDA, for example a clinical investigation that... welfare, or participation in a research study. 4. Disclosure may be made to the public of information...

  13. A Research on the Practice of Volunteer Guardianship in Primary Schools (Example of Trabzon Province)

    ERIC Educational Resources Information Center

    Küçükali, Ridvan

    2017-01-01

    In this study, we tried to find an answer to the question as to whether positive outcomes in socio-emotional and academic sense may be provided to the education of kids kept under the practice known as "Volunteer Guardians on duty". This study reached the following conclusions through the data obtained. The presence of legal guardians…

  14. Seeking Effectiveness and Equity in a Large College Chemistry Course: An HLM Investigation of Peer-Led Guided Inquiry

    ERIC Educational Resources Information Center

    Lewis, Scott E.; Lewis, Jennifer E.

    2008-01-01

    This study employed hierarchical linear models (HLM) to investigate Peer-Led Guided Inquiry (PLGI), a teaching practice combining cooperative learning and inquiry and tailored for a large class. Ultimately, the study provided an example of the effective introduction of a reform pedagogical approach in a large class setting. In the narrative, the…

  15. Integrating Learning, Leadership, and Crisis in Management Education: Lessons from Army Officers in Iraq and Afghanistan

    ERIC Educational Resources Information Center

    Kayes, D. Christopher; Allen, Nate; Self, Nate

    2013-01-01

    This article presents a model and case study used to teach crisis leadership as a management education topic. The materials emerge from studies of U.S. Army leaders (company commanders and platoon leaders) working in Iraq and Afghanistan. The authors explain how examples and cases from military combat provide tools to teach about crisis…

  16. Using Pennsylvania's Three Mile Island Accident as a Case Study to Analyze Newspaper Coverage: A Diary of Events and Suggestions for Teaching Strategies.

    ERIC Educational Resources Information Center

    Susskind, Jacob L.

    1983-01-01

    Methods for studying the coverage of the same current news story in several newspapers are outlined. Secondary school students critically examine news reporting, detect false or propagandistic reports, and learn to weigh and judge evidence. An example using the Three Mile Island nuclear accident is provided. (KC)

  17. Phylogenetic framework for coevolutionary studies: a compass for exploring jungles of tangled trees.

    PubMed

    Martínez-Aquino, Andrés

    2016-08-01

    Phylogenetics is used to detect past evolutionary events, from how species originated to how their ecological interactions with other species arose, which can mirror cophylogenetic patterns. Cophylogenetic reconstructions uncover past ecological relationships between taxa through inferred coevolutionary events on trees, for example, codivergence, duplication, host-switching, and loss. These events can be detected by cophylogenetic analyses based on nodes and the length and branching pattern of the phylogenetic trees of symbiotic associations, for example, host-parasite. In the past 2 decades, algorithms have been developed for cophylogetenic analyses and implemented in different software, for example, statistical congruence index and event-based methods. Based on the combination of these approaches, it is possible to integrate temporal information into cophylogenetical inference, such as estimates of lineage divergence times between 2 taxa, for example, hosts and parasites. Additionally, the advances in phylogenetic biogeography applying methods based on parametric process models and combined Bayesian approaches, can be useful for interpreting coevolutionary histories in a scenario of biogeographical area connectivity through time. This article briefly reviews the basics of parasitology and provides an overview of software packages in cophylogenetic methods. Thus, the objective here is to present a phylogenetic framework for coevolutionary studies, with special emphasis on groups of parasitic organisms. Researchers wishing to undertake phylogeny-based coevolutionary studies can use this review as a "compass" when "walking" through jungles of tangled phylogenetic trees.

  18. Phylogenetic framework for coevolutionary studies: a compass for exploring jungles of tangled trees

    PubMed Central

    2016-01-01

    Abstract Phylogenetics is used to detect past evolutionary events, from how species originated to how their ecological interactions with other species arose, which can mirror cophylogenetic patterns. Cophylogenetic reconstructions uncover past ecological relationships between taxa through inferred coevolutionary events on trees, for example, codivergence, duplication, host-switching, and loss. These events can be detected by cophylogenetic analyses based on nodes and the length and branching pattern of the phylogenetic trees of symbiotic associations, for example, host–parasite. In the past 2 decades, algorithms have been developed for cophylogetenic analyses and implemented in different software, for example, statistical congruence index and event-based methods. Based on the combination of these approaches, it is possible to integrate temporal information into cophylogenetical inference, such as estimates of lineage divergence times between 2 taxa, for example, hosts and parasites. Additionally, the advances in phylogenetic biogeography applying methods based on parametric process models and combined Bayesian approaches, can be useful for interpreting coevolutionary histories in a scenario of biogeographical area connectivity through time. This article briefly reviews the basics of parasitology and provides an overview of software packages in cophylogenetic methods. Thus, the objective here is to present a phylogenetic framework for coevolutionary studies, with special emphasis on groups of parasitic organisms. Researchers wishing to undertake phylogeny-based coevolutionary studies can use this review as a “compass” when “walking” through jungles of tangled phylogenetic trees. PMID:29491928

  19. Introduction to metabolomics and its applications in ophthalmology

    PubMed Central

    Tan, S Z; Begley, P; Mullard, G; Hollywood, K A; Bishop, P N

    2016-01-01

    Metabolomics is the study of endogenous and exogenous metabolites in biological systems, which aims to provide comparative semi-quantitative information about all metabolites in the system. Metabolomics is an emerging and potentially powerful tool in ophthalmology research. It is therefore important for health professionals and researchers involved in the speciality to understand the basic principles of metabolomics experiments. This article provides an overview of the experimental workflow and examples of its use in ophthalmology research from the study of disease metabolism and pathogenesis to identification of biomarkers. PMID:26987591

  20. Optical contact micrometer

    DOEpatents

    Jacobson, Steven D.

    2014-08-19

    Certain examples provide optical contact micrometers and methods of use. An example optical contact micrometer includes a pair of opposable lenses to receive an object and immobilize the object in a position. The example optical contact micrometer includes a pair of opposable mirrors positioned with respect to the pair of lenses to facilitate viewing of the object through the lenses. The example optical contact micrometer includes a microscope to facilitate viewing of the object through the lenses via the mirrors; and an interferometer to obtain one or more measurements of the object.

  1. Conceptual study of the damping of large space structures using large-stroke adaptive stiffness cables

    NASA Technical Reports Server (NTRS)

    Thorwald, Gregory; Mikulas, Martin M., Jr.

    1992-01-01

    The concept of a large-stroke adaptive stiffness cable-device for damping control of space structures with large mass is introduced. The cable is used to provide damping in several examples, and its performance is shown through numerical simulation results. Displacement and velocity information of how the structure moves is used to determine when to modify the cable's stiffness in order to provide a damping force.

  2. Using Local History, Primary Source Material, and Comparative History to Teach Reconstruction.

    ERIC Educational Resources Information Center

    Adomanis, James F.

    1989-01-01

    Suggests using local history, primary source material, and comparative history to alleviate the boredom most students experience when studying the Reconstruction period of U.S. history. Provides an example of comparative history usage through a discussion of ante-bellum Maryland and the history of Liberia. (KO)

  3. Lucy Diggs Slowe, Howard University Dean of Women, 1922-1937: Educator Administrator, Activist

    ERIC Educational Resources Information Center

    Rasheed, Lisa R.

    2010-01-01

    Within the last twenty years, some educational researchers initiated an emphasis to study the accomplishments and contributions of African-American women in higher education. Although they were marginally recognized, some African-American women forged into uncharted territories by providing examples of administrative leadership in post-secondary…

  4. Reforming Teaching Globally. Oxford Studies in Comparative Education

    ERIC Educational Resources Information Center

    Tatto, Maria Teresa, Ed.

    2007-01-01

    This book seeks to raise the discussion of globalisation's effects on teacher education, development and work, and its reforms and institutions, to a more theoretical and analytical level, and to provide specific examples in the comparative tradition to illustrate teacher policy in the context of education systems' widespread variability and…

  5. Dialogic Teaching in the Primary Science Classroom

    ERIC Educational Resources Information Center

    Mercer, Neil; Dawes, Lyn; Staarman, Judith Kleine

    2009-01-01

    This paper describes research on dialogue between teachers and pupils during primary school science lessons, using talk from two classrooms to provide our examples. We consider whether teachers use dialogue to make education a cumulative, continuing process for guiding the development of children's understanding. Case studies of two teachers,…

  6. Problem-Solving Exercises and Evolution Teaching

    ERIC Educational Resources Information Center

    Angseesing, J. P. A.

    1978-01-01

    It is suggested that the work of Kammerer provides suitable material, in the form of case studies on which to base discussions of Lamarckism versus Darwinism. A set of structured problems is described as an example of possible problem-solving exercises, and further experiments to extend Kammerer's work are outlined. (Author/MA)

  7. In-Vivo Zinc Metabolism by Isotope Ratio Mass Spectrometry

    USDA-ARS?s Scientific Manuscript database

    The purpose of this chapter is to highlight some of the methodological and technical issues surrounding the in vivo use of stable isotopes and to provide examples of how such studies have advanced our knowledge of human zinc metabolism. The advantages and disadvantages of the currently available in...

  8. Postgraduate Transnational Education in Nonbusiness Subjects: Can It Fit Conceptualizations of Curriculum Internationalization?

    ERIC Educational Resources Information Center

    Chan, Benjamin Tak-Yuen

    2011-01-01

    The issue of teaching and learning in transnational education has increasingly received attention through studies about "curriculum internationalization." To date, many of the examples and theorizations about curriculum internationalization are provided by business courses. This is largely a function of trade and commercial activities being…

  9. Cathodoluminescence Petrography: A Valuable Tool for Teaching and Research.

    ERIC Educational Resources Information Center

    Kopp, Otto C.

    1981-01-01

    Cathodoluminescence is visible light emitted from a specimen when it is bombarded with electrons. A technique known as cathodoluminescence petrography can provide information especially useful in studies or courses related to mineralogy and petrology. The technique is briefly presented, along with examples to illustrate typical results. (Author/WB)

  10. Small City Transit : Chapel Hill, North Carolina : Public Transit Serving a University and Town

    DOT National Transportation Integrated Search

    1976-03-01

    Chapel Hill, North Carolina, is an illustration of a public transit service providing a high level of service for a town its size and a good example of a cooperative arrangement between a town and a resident university. This case study is one of thir...

  11. Data Acquisition Using Xbox Kinect Sensor

    ERIC Educational Resources Information Center

    Ballester, Jorge; Pheatt, Charles B.

    2012-01-01

    The study of motion is central in physics education and has taken many forms as technology has provided numerous methods to acquire data. For example, the analysis of still or moving images is particularly effective in discussions of two-dimensional motion. Introductory laboratory measurement methods have progressed through water clocks, spark…

  12. Academic Language in Early Childhood Classrooms

    ERIC Educational Resources Information Center

    Barnes, Erica M.; Grifenhagen, Jill F.; Dickinson, David K.

    2016-01-01

    This article defines academic language by examining the central features of vocabulary, syntax, and discourse function. Examples of each feature are provided, as well as methods of identifying them in oral language and printed text. We describe a yearlong study that found teachers used different types of academic language based on instructional…

  13. Translanguaging in Higher Education: Beyond Monolingual Ideologies

    ERIC Educational Resources Information Center

    Mazak, Catherine M., Ed.; Carroll, Kevin S., Ed.

    2016-01-01

    This book examines translanguaging in higher education and provides clear examples of what translanguaging looks like in practice in particular contexts around the world. While higher education has historically been seen as a monolingual space, the case studies from the international contexts included in this collection show us that institutions…

  14. Using Problem Solving to Teach a Programming Language.

    ERIC Educational Resources Information Center

    Milbrandt, George

    1995-01-01

    Computer studies courses should incorporate as many computer concepts and programming language experiences as possible. A gradual increase in problem difficulty will help the student to understand various computer concepts, and the programming language's syntax and structure. A sidebar provides two examples of how to establish a learning…

  15. How Reliable is the Temperature Forecast?

    ERIC Educational Resources Information Center

    Christmann, Edwin P.

    2005-01-01

    Project 2061 suggests "technology provides the eyes and ears of science--and some of the muscle too. The electronic computer, for example, has led to substantial progress in the study of weather systems...." Obviously, now that teachers have access to a kaleidoscope of technological advancements, middle school science teachers can engage students…

  16. Using a Video Projector for Color-Mixing Demonstrations.

    ERIC Educational Resources Information Center

    Bartels, Richard A.

    1982-01-01

    Suggestions are provided for using color television projector systems to demonstrate color mixing. With such a projector, manipulation of the three primary colors can be done by simply covering and uncovering the three separate beams. In addition, projector systems serve as good examples in studying geometrical optics. (Author/JN)

  17. Box-Cox transformation of left-censored data with application to the analysis of coronary artery calcification and pharmacokinetic data.

    PubMed

    Han, Cong; Kronmal, Richard

    2004-12-15

    Box-Cox transformation is investigated for regression models for left-censored data. Examples are provided using coronary calcification data from the Multi-Ethnic Study of Atherosclerosis and pharmacokinetic data of a nicotine nasal spray. Copyright 2004 John Wiley & Sons, Ltd.

  18. Have You Considered?--Teaching Grammar.

    ERIC Educational Resources Information Center

    Rutan, Jessica

    2003-01-01

    Provides examples of a journey the author has recently experienced to consider if understanding the rules of grammar impact how a struggling adolescent reads. Suggests that the study of grammar will help her students become better users of the language. Notes that they will become effective listeners and speakers, but more importantly proficient…

  19. Combining Vocational and Higher Education Studies to Provide Dual Parallel Qualifications

    ERIC Educational Resources Information Center

    McLaughlin, Patricia; Mills, Anthony

    2011-01-01

    Developing academic relationships between vocational colleges and universities in Australia has been problematic, with exchanges between the two sectors limited to linear articulation and prescribed credit transfer. Whilst some very good examples of collaboration exist, in general the two sectors operate independently of each other. The isolation…

  20. Addressing South Africa's Engineering Skills Gaps

    ERIC Educational Resources Information Center

    Hall, Jonathan; Sandelands, Eric

    2009-01-01

    Purpose: This paper aims to provide a case study of how engineering skills gaps are being addressed by Murray & Roberts in South Africa. Design/methodology/approach: The paper focuses on skills challenges in South Africa from a reflective practitioner perspective, exploring a case example from an industry leader. Findings: The paper explores…

  1. Ecological and financial assessment of late-successional reserve management.

    Treesearch

    Susan Stevens Hummel; R. James Barbour; Paul F. Hessburg; John F. Lehmkuhl

    2001-01-01

    This paper documents methods for assessing the potential effects of variable-intensity management in late-successional reserves (LSRs) and provides an example (the Gotchen LSR) from the Cascade Range in eastern Washington. The Gotchen LSR study investigates changes in forest vegetation associated with silvicultural treatments, and how different treatment combinations...

  2. Cooperative Learning: Improving University Instruction by Basing Practice on Validated Theory

    ERIC Educational Resources Information Center

    Johnson, David W.; Johnson, Roger T.; Smith, Karl A.

    2014-01-01

    Cooperative learning is an example of how theory validated by research may be applied to instructional practice. The major theoretical base for cooperative learning is social interdependence theory. It provides clear definitions of cooperative, competitive, and individualistic learning. Hundreds of research studies have validated its basic…

  3. Exploring Linguistic Identity in Young Multilingual Learners

    ERIC Educational Resources Information Center

    Dressler, Roswita

    2014-01-01

    This article explores the linguistic identity of young multilingual learners through the use of a Language Portrait Silhouette. Examples from a research study of children aged 6-8 years in a German bilingual program in Canada provide teachers with an understanding that linguistic identity comprises expertise, affiliation, and inheritance. This…

  4. Latino Parents and Students Foster Literacy through a Culturally Relevant Folk Medicine Event

    ERIC Educational Resources Information Center

    Huerta, Mary Esther Soto; Riojas-Cortez, Mari

    2011-01-01

    This study was inspired by the literary elements of "cuentos tipicos" (culturally-relevant stories). The book "Prietita y la llorona" ("Prietita and the Ghost Woman") written by Anzaldua (1995) is a good example of a "cuento" that provides information about medicinal herbs and also includes…

  5. Forming a Community Partnership to Enhance Education in Sustainability

    ERIC Educational Resources Information Center

    Allen-Gil, Susan; Walker, Liz; Thomas, Garry; Shevory, Tom; Elan, Shapiro

    2005-01-01

    Purpose: To provide an example of how colleges can partner with local EcoVillages to further sustainability curriculum on campus and the educational mission of the EcoVillages, and to strengthen ties with the community. Design/methodology/approach: Describes four structured courses developed for the Environmental Studies Program, including…

  6. The School-Based Multidisciplinary Team and Nondiscriminatory Assessment.

    ERIC Educational Resources Information Center

    Pfeiffer, Steven I.

    The potential of multidisciplinary teams to control for possible errors in diagnosis, classification, and placement and to provide a vehicle for ensuring effective outcomes of diagnostic practices is illustrated. The present functions of the school-based multidisciplinary team (also called, for example, assessment team, child study team, placement…

  7. Grief and Mourning Reactions Following Abortion and Miscarriage.

    ERIC Educational Resources Information Center

    Widener, Anmarie J.

    1996-01-01

    Explores current research on psychological reactions following induced and spontaneous abortions. Provides examples of studies wherein researchers have used a loss model to understand this experience. Explores possible reasons for the apparent inattention to grief reactions following this type of loss and offers an alternative approach to the loss…

  8. From the Ground Up: Art in American Built Environment Education.

    ERIC Educational Resources Information Center

    Guilfoil, Joanne K.

    2000-01-01

    Provides a case for teaching children about local architecture. Describes a specific example called the Kentucky Project as a humanist approach to built environmental education that enabled middle and high school students to study their architectural heritage through a program of videos and related teaching materials. (CMK)

  9. Simulation Higher Order Language Requirements Study.

    ERIC Educational Resources Information Center

    Goodenough, John B.; Braun, Christine L.

    The definitions provided for high order language (HOL) requirements for programming flight training simulators are based on the analysis of programs written for a variety of simulators. Examples drawn from these programs are used to justify the need for certain HOL capabilities. A description of the general structure and organization of the…

  10. Nimitz and Goleman: Study of a Civilian Leadership Model

    DTIC Science & Technology

    2009-06-01

    the workers can sense this and are apt to feel leaderless (Goleman 2000, 85). Also, the absolute wrong time to exercise democratic leadership is when...to reach a collective decision. Though rarely used by Nimitz, history provides three examples of when he displayed this democratic leadership style

  11. BIOCHEMICAL HOMEOSTASIS AND BODY GROWTH ARE RELIABLE END POINTS IN CLINICAL NUTRITION TRIALS

    USDA-ARS?s Scientific Manuscript database

    Studies of biochemical homeostasis and/or body growth have been included as outcome variables in most nutrition trials in paediatric patients. Moreover, these outcome variables have provided important insights into the nutrient requirements of infants and children, and continue to do so. Examples ...

  12. Headsprout Early Reading for Students at Risk for Reading Failure

    ERIC Educational Resources Information Center

    Kreskey, Donna D.

    2012-01-01

    This study examined the efficacy of using Headsprout Early Reading (Headsprout, 2007) to supplement a balanced literacy curriculum for kindergarten and first grade students in a suburban public school system. Headsprout, which is an example of computer aided instruction (CAI), provided internet-based, supplemental reading instruction that…

  13. Individual Multimodal Therapy for Weight Loss: A Case Example.

    ERIC Educational Resources Information Center

    Kilmartin, Christopher; Robbins, Steven

    1987-01-01

    Presents a case study highlighting a treatment model based on a multimodal conceptualization. Suggests that individual multimodal therapy provides a comprehensive approach to the treatment of overeating, helping to target social and emotional issues related to eating disorders as well as the eating behaviors themselves. (Author/ABB)

  14. "Clubcasting": Educational Uses of Podcasting in Multicultural Settings

    ERIC Educational Resources Information Center

    Beilke, Jayne R.; Stuve, Matthew J.; Williams-Hawkins, Maria A.

    2008-01-01

    Purpose: This article aims to provide a case study example of the uses of podcasting in a multicultural educational setting. Design/methodology/approach: Pre-service undergraduate teaching majors collaborated with graduate students enrolled in an educational technology course and clients of a community agency service minority, low-income youth to…

  15. Active Learning Strategies in Face-to-Face Courses. IDEA Paper #53

    ERIC Educational Resources Information Center

    Millis, Barbara J.

    2012-01-01

    As numerous research studies suggest, teachers who desire increased student learning should adopt active learning. This article explores the research, defines active learning, discusses its value, offers suggestions for implementing it, and provides six concrete examples of active learning approaches: Thinking-Aloud Pair Problem-Solving;…

  16. Building High Performance Learning: A Focus on Career Results and the Bottom Line.

    ERIC Educational Resources Information Center

    Ingram, Hadyn; Sandelands, Eric; Teare, Richard

    2001-01-01

    Discusses how action learning can be targeted to business objectives and how electronically enabled action learning can increase productivity. Provides examples of personal learning aligned with organizational goals, including a certificate of management studies course, prior learning experiences, and an advanced diploma in virtual learning. (SK)

  17. The Language of Reading Conferences.

    ERIC Educational Resources Information Center

    Boreen, Jean

    A study examined three examples of classroom reading conferences. Subjects (students and teachers) were in grades 4, 7, and 12. Conversations between the teachers and their students serve to illustrate the different learning environments in each classroom. Results indicated that all three teachers wanted to: (1) provide students an opportunity to…

  18. Psychological Science, Talent Development, and Educational Advocacy: Lost in Translation?

    ERIC Educational Resources Information Center

    Robinson, Ann

    2012-01-01

    The talent development approach to the conceptualization of giftedness has historical precedent in the field. Examples of large-scale and longitudinal research studies from previous decades guided by the talent development approach are provided as illustrations. The implications of focusing on domain-specific talents in academics, the arts and…

  19. The Vroom and Yetton Normative Leadership Model Applied to Public School Case Examples.

    ERIC Educational Resources Information Center

    Sample, John

    This paper seeks to familiarize school administrators with the Vroom and Yetton Normative Leadership model by presenting its essential components and providing original case studies for its application to school settings. The five decision-making methods of the Vroom and Yetton model, including two "autocratic," two…

  20. High-mass stars in Milky Way clusters

    NASA Astrophysics Data System (ADS)

    Negueruela, Ignacio

    2017-11-01

    Young open clusters are our laboratories for studying high-mass star formation and evolution. Unfortunately, the information that they provide is difficult to interpret, and sometimes contradictory. In this contribution, I present a few examples of the uncertainties that we face when confronting observations with theoretical models and our own assumptions.

  1. Step-by-step guideline for disease-specific costing studies in low- and middle-income countries: a mixed methodology

    PubMed Central

    Hendriks, Marleen E.; Kundu, Piyali; Boers, Alexander C.; Bolarinwa, Oladimeji A.; te Pas, Mark J.; Akande, Tanimola M.; Agbede, Kayode; Gomez, Gabriella B.; Redekop, William K.; Schultsz, Constance; Tan, Siok Swan

    2014-01-01

    Background Disease-specific costing studies can be used as input into cost-effectiveness analyses and provide important information for efficient resource allocation. However, limited data availability and limited expertise constrain such studies in low- and middle-income countries (LMICs). Objective To describe a step-by-step guideline for conducting disease-specific costing studies in LMICs where data availability is limited and to illustrate how the guideline was applied in a costing study of cardiovascular disease prevention care in rural Nigeria. Design The step-by-step guideline provides practical recommendations on methods and data requirements for six sequential steps: 1) definition of the study perspective, 2) characterization of the unit of analysis, 3) identification of cost items, 4) measurement of cost items, 5) valuation of cost items, and 6) uncertainty analyses. Results We discuss the necessary tradeoffs between the accuracy of estimates and data availability constraints at each step and illustrate how a mixed methodology of accurate bottom-up micro-costing and more feasible approaches can be used to make optimal use of all available data. An illustrative example from Nigeria is provided. Conclusions An innovative, user-friendly guideline for disease-specific costing in LMICs is presented, using a mixed methodology to account for limited data availability. The illustrative example showed that the step-by-step guideline can be used by healthcare professionals in LMICs to conduct feasible and accurate disease-specific cost analyses. PMID:24685170

  2. Empowering genomic medicine by establishing critical sequencing result data flows: the eMERGE example.

    PubMed

    Aronson, Samuel; Babb, Lawrence; Ames, Darren; Gibbs, Richard A; Venner, Eric; Connelly, John J; Marsolo, Keith; Weng, Chunhua; Williams, Marc S; Hartzler, Andrea L; Liang, Wayne H; Ralston, James D; Devine, Emily Beth; Murphy, Shawn; Chute, Christopher G; Caraballo, Pedro J; Kullo, Iftikhar J; Freimuth, Robert R; Rasmussen, Luke V; Wehbe, Firas H; Peterson, Josh F; Robinson, Jamie R; Wiley, Ken; Overby Taylor, Casey

    2018-05-31

    The eMERGE Network is establishing methods for electronic transmittal of patient genetic test results from laboratories to healthcare providers across organizational boundaries. We surveyed the capabilities and needs of different network participants, established a common transfer format, and implemented transfer mechanisms based on this format. The interfaces we created are examples of the connectivity that must be instantiated before electronic genetic and genomic clinical decision support can be effectively built at the point of care. This work serves as a case example for both standards bodies and other organizations working to build the infrastructure required to provide better electronic clinical decision support for clinicians.

  3. Conducting metal oxide and metal nitride nanoparticles

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

    DiSalvo, Jr., Francis J.; Subban, Chinmayee V.

    Conducting metal oxide and nitride nanoparticles that can be used in fuel cell applications. The metal oxide nanoparticles are comprised of for example, titanium, niobium, tantalum, tungsten and combinations thereof. The metal nitride nanoparticles are comprised of, for example, titanium, niobium, tantalum, tungsten, zirconium, and combinations thereof. The nanoparticles can be sintered to provide conducting porous agglomerates of the nanoparticles which can be used as a catalyst support in fuel cell applications. Further, platinum nanoparticles, for example, can be deposited on the agglomerates to provide a material that can be used as both an anode and a cathode catalyst supportmore » in a fuel cell.« less

  4. Hauntings, homeopathy, and the Hopkinsville Goblins: using pseudoscience to teach scientific thinking

    PubMed Central

    Schmaltz, Rodney; Lilienfeld, Scott O.

    2014-01-01

    With access to information ever increasing, it is essential that students acquire the skills to distinguish fact from fiction. By incorporating examples of pseudoscience into lectures, instructors can provide students with the tools needed to understand the difference between scientific and pseudoscientific or paranormal claims. We discuss examples involving psychics, ghosts, aliens, and other phenomena in relation to scientific thinking. In light of research literature demonstrating that presenting and dispelling scientific misconceptions in the classroom is an effective means of countering non-scientific or pseudoscientific beliefs, we provide examples of pseudoscience that can be used to help students acquire healthy skepticism while avoiding cynicism. PMID:24860520

  5. Hauntings, homeopathy, and the Hopkinsville Goblins: using pseudoscience to teach scientific thinking.

    PubMed

    Schmaltz, Rodney; Lilienfeld, Scott O

    2014-01-01

    With access to information ever increasing, it is essential that students acquire the skills to distinguish fact from fiction. By incorporating examples of pseudoscience into lectures, instructors can provide students with the tools needed to understand the difference between scientific and pseudoscientific or paranormal claims. We discuss examples involving psychics, ghosts, aliens, and other phenomena in relation to scientific thinking. In light of research literature demonstrating that presenting and dispelling scientific misconceptions in the classroom is an effective means of countering non-scientific or pseudoscientific beliefs, we provide examples of pseudoscience that can be used to help students acquire healthy skepticism while avoiding cynicism.

  6. Device for calorimetric measurement

    DOEpatents

    King, William P; Lee, Jungchul

    2015-01-13

    In one aspect, provided herein is a single crystal silicon microcalorimeter, for example useful for high temperature operation and long-term stability of calorimetric measurements. Microcalorimeters described herein include microcalorimeter embodiments having a suspended structure and comprising single crystal silicon. Also provided herein are methods for making calorimetric measurements, for example, on small quantities of materials or for determining the energy content of combustible material having an unknown composition.

  7. How to Teach Yourself Physical Skills: An Audio Tape for College Students with Some Introductory Comments and a Detailed Outline.

    ERIC Educational Resources Information Center

    Hodges, Daniel L.

    This guide provides a detailed summary of the information, techniques, and examples offered in an audiotape developed to help students teach themselves physical skills. After section I introduces the topic and the objectives of the tape, section II provides concrete examples of adults learning motor skills. Section III presents and discusses nine…

  8. Retail health care: gaining advantage by dropping below the radar screen.

    PubMed

    2002-09-01

    There are many examples throughout the country of providers that are getting into retail medicine themselves, and of companies that are helping providers do this. Carolinas Healthcare System, e-Cleveland Clinic and the aforementioned partners of Health Ventures are examples. Orlikoff believes that retail medicine is a key piece in building an infrastructure that is relevant to the future for healthcare providers, and as he often says, "The riches are in the niches." "It's an exciting time for providers," Firestone says, "but they've got to risk doing things very differently, driven by their patients, the consumer."

  9. Interlibrary cooperation: from ILL to IAIMS and beyond.

    PubMed

    Riordan, M L; Perry, G J

    1999-07-01

    A recent solicitation over the MEDLIB-L e-mail discussion list revealed over thirty diverse examples of hospital library-based interlibrary cooperative initiatives currently underway. Many are familiar and have been featured in the professional literature. Most go unreported and unrecognized however, comprising invisible resource-sharing infrastructures that hospital librarians painstakingly piece together in order to provide their clients with expanded service options. This paper, drawing from the MEDLIB-L survey as well as descriptions in the published literature, provides a broad overview of such recent interlibrary cooperative efforts. Examples include interlibrary loan networks, collective purchasing initiatives, holder-of-record or union catalog access agreements, arrangements to provide e-mail and Internet access, and consortia to share electronic resources. Examples were chosen based on the initiatives' diversity of participants, and represent a wide range of locations across the United States. Such initiatives focus on local, statewide, or regional collaboration, and several involve partnerships between academic medical center libraries and regional hospital libraries. An early example of a hospital-based interlibrary cooperative IAIMS effort is described, pointing to future possibilities involving the Internet and regional hospital system intranets.

  10. Strengthening the Reporting of Observational Studies in Epidemiology (STROBE): Explanation and Elaboration

    PubMed Central

    Vandenbroucke, Jan P; von Elm, Erik; Altman, Douglas G; Gøtzsche, Peter C; Mulrow, Cynthia D; Pocock, Stuart J; Poole, Charles; Schlesselman, James J; Egger, Matthias

    2007-01-01

    Much medical research is observational. The reporting of observational studies is often of insufficient quality. Poor reporting hampers the assessment of the strengths and weaknesses of a study and the generalisability of its results. Taking into account empirical evidence and theoretical considerations, a group of methodologists, researchers, and editors developed the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) recommendations to improve the quality of reporting of observational studies. The STROBE Statement consists of a checklist of 22 items, which relate to the title, abstract, introduction, methods, results and discussion sections of articles. Eighteen items are common to cohort studies, case-control studies and cross-sectional studies and four are specific to each of the three study designs. The STROBE Statement provides guidance to authors about how to improve the reporting of observational studies and facilitates critical appraisal and interpretation of studies by reviewers, journal editors and readers. This explanatory and elaboration document is intended to enhance the use, understanding, and dissemination of the STROBE Statement. The meaning and rationale for each checklist item are presented. For each item, one or several published examples and, where possible, references to relevant empirical studies and methodological literature are provided. Examples of useful flow diagrams are also included. The STROBE Statement, this document, and the associated Web site (http://www.strobe-statement.org/) should be helpful resources to improve reporting of observational research. PMID:17941715

  11. Energy and Environment Guide to Action - Chapter 4.5: Lead by Example

    EPA Pesticide Factsheets

    Provides recommendations on designing, implementing, and evaluating lead by example programs, which offer states opportunities to achieve substantial energy cost savings within their operations. State success stories are included for reference.

  12. Ultrathin conformal devices for precise and continuous thermal characterization of human skin

    PubMed Central

    Webb, R. Chad; Bonifas, Andrew P.; Behnaz, Alex; Zhang, Yihui; Yu, Ki Jun; Cheng, Huanyu; Shi, Mingxing; Bian, Zuguang; Liu, Zhuangjian; Kim, Yun-Soung; Yeo, Woon-Hong; Park, Jae Suk; Song, Jizhou; Li, Yuhang; Huang, Yonggang; Gorbach, Alexander M.; Rogers, John A.

    2013-01-01

    Precision thermometry of the skin can, together with other measurements, provide clinically relevant information about cardiovascular health, cognitive state, malignancy and many other important aspects of human physiology. Here, we introduce an ultrathin, compliant skin-like sensor/actuator technology that can pliably laminate onto the epidermis to provide continuous, accurate thermal characterizations that are unavailable with other methods. Examples include non-invasive spatial mapping of skin temperature with millikelvin precision, and simultaneous quantitative assessment of tissue thermal conductivity. Such devices can also be implemented in ways that reveal the time-dynamic influence of blood flow and perfusion on these properties. Experimental and theoretical studies establish the underlying principles of operation, and define engineering guidelines for device design. Evaluation of subtle variations in skin temperature associated with mental activity, physical stimulation and vasoconstriction/dilation along with accurate determination of skin hydration through measurements of thermal conductivity represent some important operational examples. PMID:24037122

  13. Ultrathin conformal devices for precise and continuous thermal characterization of human skin

    NASA Astrophysics Data System (ADS)

    Webb, R. Chad; Bonifas, Andrew P.; Behnaz, Alex; Zhang, Yihui; Yu, Ki Jun; Cheng, Huanyu; Shi, Mingxing; Bian, Zuguang; Liu, Zhuangjian; Kim, Yun-Soung; Yeo, Woon-Hong; Park, Jae Suk; Song, Jizhou; Li, Yuhang; Huang, Yonggang; Gorbach, Alexander M.; Rogers, John A.

    2013-10-01

    Precision thermometry of the skin can, together with other measurements, provide clinically relevant information about cardiovascular health, cognitive state, malignancy and many other important aspects of human physiology. Here, we introduce an ultrathin, compliant skin-like sensor/actuator technology that can pliably laminate onto the epidermis to provide continuous, accurate thermal characterizations that are unavailable with other methods. Examples include non-invasive spatial mapping of skin temperature with millikelvin precision, and simultaneous quantitative assessment of tissue thermal conductivity. Such devices can also be implemented in ways that reveal the time-dynamic influence of blood flow and perfusion on these properties. Experimental and theoretical studies establish the underlying principles of operation, and define engineering guidelines for device design. Evaluation of subtle variations in skin temperature associated with mental activity, physical stimulation and vasoconstriction/dilation along with accurate determination of skin hydration through measurements of thermal conductivity represent some important operational examples.

  14. Causal inference as an emerging statistical approach in neurology: an example for epilepsy in the elderly.

    PubMed

    Moura, Lidia Mvr; Westover, M Brandon; Kwasnik, David; Cole, Andrew J; Hsu, John

    2017-01-01

    The elderly population faces an increasing number of cases of chronic neurological conditions, such as epilepsy and Alzheimer's disease. Because the elderly with epilepsy are commonly excluded from randomized controlled clinical trials, there are few rigorous studies to guide clinical practice. When the elderly are eligible for trials, they either rarely participate or frequently have poor adherence to therapy, thus limiting both generalizability and validity. In contrast, large observational data sets are increasingly available, but are susceptible to bias when using common analytic approaches. Recent developments in causal inference-analytic approaches also introduce the possibility of emulating randomized controlled trials to yield valid estimates. We provide a practical example of the application of the principles of causal inference to a large observational data set of patients with epilepsy. This review also provides a framework for comparative-effectiveness research in chronic neurological conditions.

  15. Evaluating Risk Communication After the Fukushima Disaster Based on Nudge Theory.

    PubMed

    Murakami, Michio; Tsubokura, Masaharu

    2017-03-01

    Using nudge theory and some examples of risk communication that followed the Fukushima disaster, this article discusses the influences and justifications of risk communication, in addition to how risk communication systems are designed. To assist people in making decisions based on their own value systems, we provide three suggestions, keeping in mind that people can be influenced (ie, "nudged") depending on how risk communication takes place: (1) accumulate knowledge on the process of evaluating how the method of risk communication and a system's default design could impact people; (2) clarify the purpose and outcomes of risk communication; and (3) see what risk communication might be ethically unjustifiable. Quantitative studies on risk communication and collective narratives will provide some ideas for how to design better risk communication systems and to help people make decisions. Furthermore, we have shown examples of unjustifiable risk communication.

  16. SLEEP AND THE FUNCTIONAL CONNECTOME

    PubMed Central

    Picchioni, Dante; Duyn, Jeff H.; Horovitz, Silvina G.

    2013-01-01

    Sleep and the functional connectome are research areas with considerable overlap. Neuroimaging studies of sleep based on EEG-PET and EEG-fMRI are revealing the brain networks that support sleep, as well as networks that may support the roles and processes attributed to sleep. For example, phenomena such as arousal and consciousness are substantially modulated during sleep, and one would expect this modulation to be reflected in altered network activity. In addition, recent work suggests that sleep also has a number of adaptive functions that support waking activity. Thus the study of sleep may elucidate the circuits and processes that support waking function and complement information obtained from fMRI during waking conditions. In this review, we will discuss examples of this for memory, arousal, and consciousness after providing a brief background on sleep and on studying it with fMRI. PMID:23707592

  17. Prevalence Odds Ratio versus Prevalence Ratio: Choice Comes with Consequences

    PubMed Central

    Tamhane, Ashutosh R; Westfall, Andrew O; Burkholder, Greer A; Cutter, Gary R

    2016-01-01

    Odds ratio (OR), risk ratio (RR), and prevalence ratio (PR) are some of the measures of association which are often reported in research studies quantifying the relationship between an independent variable and the outcome of interest. There has been much debate on the issue of which measure is appropriate to report depending on the study design. However, the literature on selecting a particular category of the outcome to be modeled and/or change in reference group for categorical independent variables and the effect on statistical significance, although known, is scantly discussed nor published with examples. In this article, we provide an example of a cross-sectional study wherein PR was chosen over (Prevalence) OR and demonstrate the analytic implications of the choice of category to be modeled and choice of reference level for independent variables. PMID:27460748

  18. Adding Qualitative and Mixed Methods Research to Health Intervention Studies: Interacting With Differences.

    PubMed

    Johnson, R Burke; Schoonenboom, Judith

    2016-04-01

    The purpose of this article is to explain how to improve intervention designs, such as randomized controlled trials (RCTs), in health science research using a process philosophy and theory known as dialectical pluralism (DP). DP views reality as plural and uses dialectical, dialogical, and hermeneutical approaches to knowledge construction. Using DP and its "both/and" logic, and its attempt to produce new creative syntheses, researchers on heterogeneous teams can better dialogue with qualitative and mixed methods approaches, concepts, paradigms, methodologies, and methods to improve their intervention research studies. The concept of reflexivity is utilized but is expanded when it is a component of DP. Examples of strategies for identifying, inviting, and creating divergence and integrative strategies for producing strong mixed methods intervention studies are provided and illustrated using real-life examples. © The Author(s) 2015.

  19. On critical behaviour in generalized Kadomtsev-Petviashvili equations

    NASA Astrophysics Data System (ADS)

    Dubrovin, B.; Grava, T.; Klein, C.

    2016-10-01

    An asymptotic description of the formation of dispersive shock waves in solutions to the generalized Kadomtsev-Petviashvili (KP) equation is conjectured. The asymptotic description based on a multiscales expansion is given in terms of a special solution to an ordinary differential equation of the Painlevé I hierarchy. Several examples are discussed numerically to provide strong evidence for the validity of the conjecture. The numerical study of the long time behaviour of these examples indicates persistence of dispersive shock waves in solutions to the (subcritical) KP equations, while in the supercritical KP equations a blow-up occurs after the formation of the dispersive shock waves.

  20. Applications of Satellite Observations of Tropospheric Composition

    NASA Astrophysics Data System (ADS)

    Monks, Paul S.; Beirle, Steffen

    A striking feature of the field of tropospheric composition is the sheer number of chemical species that have been detected and measured with satellite instruments. The measurements have found application both in atmospheric chemistry itself, providing evidence, for example, of unexpected cryochemistry in the Arctic regions, and also in environmental monitoring with, for example, the observed growth in NO2 emissions over eastern Asia. Chapter 8 gives an overview of the utility of satellite observations for measuring tropospheric composition, dealing with each of the many compounds seen in detail. A comprehensive compound by compound table of the many studies performed is a most useful feature.

  1. Coding, Constant Comparisons, and Core Categories: A Worked Example for Novice Constructivist Grounded Theorists.

    PubMed

    Giles, Tracey M; de Lacey, Sheryl; Muir-Cochrane, Eimear

    2016-01-01

    Grounded theory method has been described extensively in the literature. Yet, the varying processes portrayed can be confusing for novice grounded theorists. This article provides a worked example of the data analysis phase of a constructivist grounded theory study that examined family presence during resuscitation in acute health care settings. Core grounded theory methods are exemplified, including initial and focused coding, constant comparative analysis, memo writing, theoretical sampling, and theoretical saturation. The article traces the construction of the core category "Conditional Permission" from initial and focused codes, subcategories, and properties, through to its position in the final substantive grounded theory.

  2. A geochemical atlas of South Carolina--an example using data from the National Geochemical Survey

    USGS Publications Warehouse

    Sutphin, David M.

    2005-01-01

    National Geochemical Survey data from stream-sediment and soil samples, which have been analyzed using consistent methods, were used to create maps, graphs, and tables that were assembled in a consistent atlas format that characterizes the distribution of major and trace chemical elements in South Carolina. Distribution patterns of the elements in South Carolina may assist mineral exploration, agriculture, waste-disposal-siting issues, health, environmental, and other studies. This atlas is an example of how data from the National Geochemical Survey may be used to identify general or regional patterns of elemental occurrences and to provide a snapshot of element concentration in smaller areas.

  3. Adaptive Management of Environmental Flows

    NASA Astrophysics Data System (ADS)

    Webb, J. Angus; Watts, Robyn J.; Allan, Catherine; Conallin, John C.

    2018-03-01

    Adaptive management enables managers to work with complexity and uncertainty, and to respond to changing biophysical and social conditions. Amid considerable uncertainty over the benefits of environmental flows, governments are embracing adaptive management as a means to inform decision making. This Special Issue of Environmental Management presents examples of adaptive management of environmental flows and addresses claims that there are few examples of its successful implementation. It arose from a session at the 11th International Symposium on Ecohydraulics held in Australia, and is consequently dominated by papers from Australia. We classified the papers according to the involvement of researchers, managers and the local community in adaptive management. Five papers report on approaches developed by researchers, and one paper on a community-led program; these case studies currently have little impact on decision making. Six papers provide examples involving water managers and researchers, and two papers provide examples involving water managers and the local community. There are no papers where researchers, managers and local communities all contribute equally to adaptive management. Successful adaptive management of environmental flows occurs more often than is perceived. The final paper explores why successes are rarely reported, suggesting a lack of emphasis on reflection on management practices. One major challenge is to increase the documentation of successful adaptive management, so that benefits of learning extend beyond the project where it takes place. Finally, moving towards greater involvement of all stakeholders is critical if we are to realize the benefits of adaptive management for improving outcomes from environmental flows.

  4. Application of STEM characterization for investigating radiation effects in BCC Fe-based alloys

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

    Parish, Chad M.; Field, Kevin G.; Certain, Alicia G.

    2015-04-20

    This paper provides a general overview of advanced scanning transmission electron microscopy (STEM) techniques used for characterization of irradiated BCC Fe-based alloys. Advanced STEM methods provide the high-resolution imaging and chemical analysis necessary to understand the irradiation response of BCC Fe-based alloys. The use of STEM with energy dispersive x-ray spectroscopy (EDX) for measurement of radiation-induced segregation (RIS) is described, with an illustrated example of RIS in proton- and self-ion irradiated T91. Aberration-corrected STEM-EDX for nanocluster/nanoparticle imaging and chemical analysis is also discussed, and examples are provided from ion-irradiated oxide dispersion strengthened (ODS) alloys. In conclusion, STEM techniques for void,more » cavity, and dislocation loop imaging are described, with examples from various BCC Fe-based alloys.« less

  5. Accident-tolerant oxide fuel and cladding

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

    Mariani, Robert D.

    Systems and methods for accident tolerant oxide fuel. One or more disks can be placed between fuel pellets comprising UO.sub.2, wherein such disks possess a higher thermal conductivity material than that of the UO.sub.2 to provide enhanced heat rejection thereof. Additionally, a cladding coating comprising zircaloy coated with a material that provides stability and high melting capability can be provided. The pellets can be configured as annular pellets having an annulus filled with the higher thermal conductivity material. The material coating the zircaloy can be, for example, Zr.sub.5Si.sub.4 or another silicide such as, for example, a Zr-Silicide that limits corrosion.more » The aforementioned higher thermal conductivity material can be, for example, Si, Zr.sub.xSi.sub.y, Zr, or Al.sub.2O.sub.3.« less

  6. Safety in surgery: is selection the missing link?

    PubMed

    Paice, Alistair G; Aggarwal, Rajesh; Darzi, Ara

    2010-09-01

    Health care providers comprise an example of a "high risk organization." Safety failings within these organizations have the potential to cause significant public harm. Significant safety improvements in other high risk organizations such as the aviation industry have led to the concept of a high reliability organization (HRO)--a high risk organization that has enjoyed a prolonged safety record. A strong organizational culture is common to all successful HROs, encompassing powerful systems of selection and training. Aircrew selection processes provide a good example of this and are examined in detail in this article using the Royal Air Force process as an example. If the lessons of successful HROs are to be applied to health care organizations, candidate selection to specialties such as surgery must become more objective and robust. Other HROs can provide valuable lessons in how this may be approached.

  7. Plants for Human Life Support and Space Exploration

    NASA Technical Reports Server (NTRS)

    Wheeler, Raymond M.

    2017-01-01

    The concept of using plants and algae for human life support in space goes back to testing in the 1950s and 1960. The basis for this is harnessing photosynthesis to generate oxygen, remove and fix carbon dioxide, and produce food. For several decades, NASA conducted studies with crops in controlled environments to assess their requirements for optimum growth. This includes tests with wheat, soybeans, potatoes, lettuce, tomatoes, and other crops. In many ways, these studies have paralleled growing interests in controlled environment agriculture on Earth. For example, NASA operated perhaps the first working example of a vertical agriculture facility in the late 1980s. The facility used recirculating hydroponic systems to conserve water and nutrients, with multiple growing shelves and light banks. NASA also pioneered the use LED lighting for growing plants. Findings from these tests suggest that an area of 20-25 sq m of crops could provide all the O2 for one human, and about 40-50 sq m could provide all the O2 and food. But this is dependent on the amount of light provided. Most of these studies targeted surface settings like habitats on Mars or the Moon. Growing plants in weightless settings, like the International Space Station (ISS) requires different approaches to contain and deliver water to plants, but lettuce, mizuna, pea, and other crops have been grown in small chambers aboard the ISS to provide supplemental fresh food for the astronauts.

  8. System among the corticosteroids: specificity and molecular dynamics

    PubMed Central

    Brookes, Jennifer C.; Galigniana, Mario D.; Harker, Anthony H.; Stoneham, A. Marshall; Vinson, Gavin P.

    2012-01-01

    Understanding how structural features determine specific biological activities has often proved elusive. With over 161 000 steroid structures described, an algorithm able to predict activity from structural attributes would provide manifest benefits. Molecular simulations of a range of 35 corticosteroids show striking correlations between conformational mobility and biological specificity. Thus steroid ring A is important for glucocorticoid action, and is rigid in the most specific (and potent) examples, such as dexamethasone. By contrast, ring C conformation is important for the mineralocorticoids, and is rigid in aldosterone. Other steroids that are less specific, or have mixed functions, or none at all, are more flexible. One unexpected example is 11-deoxycorticosterone, which the methods predict (and our activity studies confirm) is not only a specific mineralocorticoid, but also has significant glucocorticoid activity. These methods may guide the design of new corticosteroid agonists and antagonists. They will also have application in other examples of ligand–receptor interactions. PMID:21613285

  9. Applying Process Improvement Methods to Clinical and Translational Research: Conceptual Framework and Case Examples

    PubMed Central

    Selker, Harry P.; Leslie, Laurel K.

    2015-01-01

    Abstract There is growing appreciation that process improvement holds promise for improving quality and efficiency across the translational research continuum but frameworks for such programs are not often described. The purpose of this paper is to present a framework and case examples of a Research Process Improvement Program implemented at Tufts CTSI. To promote research process improvement, we developed online training seminars, workshops, and in‐person consultation models to describe core process improvement principles and methods, demonstrate the use of improvement tools, and illustrate the application of these methods in case examples. We implemented these methods, as well as relational coordination theory, with junior researchers, pilot funding awardees, our CTRC, and CTSI resource and service providers. The program focuses on capacity building to address common process problems and quality gaps that threaten the efficient, timely and successful completion of clinical and translational studies. PMID:26332869

  10. Interleaved power converter

    DOEpatents

    Zhu, Lizhi

    2007-11-13

    A power converter architecture interleaves full bridge converters to alleviate thermal management problems in high current applications, and may, for example, double the output power capability while reducing parts count and costs. For example, one phase of a three phase inverter is shared between two transformers, which provide power to a rectifier such as a current doubler rectifier to provide two full bridge DC/DC converters with three rather than four high voltage inverter legs.

  11. High temperature flow-through device for rapid solubilization and analysis

    DOEpatents

    West, Jason A. A. [Castro Valley, CA; Hukari, Kyle W [San Ramon, CA; Patel, Kamlesh D [Dublin, CA; Peterson, Kenneth A [Albuquerque, NM; Renzi, Ronald F [Tracy, CA

    2009-09-22

    Devices and methods for thermally lysing of biological material, for example vegetative bacterial cells and bacterial spores, are provided. Hot solution methods for solubilizing bacterial spores are described. Systems for direct analysis are disclosed including thermal lysers coupled to sample preparation stations. Integrated systems capable of performing sample lysis, labeling and protein fingerprint analysis of biological material, for example, vegetative bacterial cells, bacterial spores and viruses are provided.

  12. High temperature flow-through device for rapid solubilization and analysis

    DOEpatents

    West, Jason A. A.; Hukari, Kyle W.; Patel, Kamlesh D.; Peterson, Kenneth A.; Renzi, Ronald F.

    2013-04-23

    Devices and methods for thermally lysing of biological material, for example vegetative bacterial cells and bacterial spores, are provided. Hot solution methods for solubilizing bacterial spores are described. Systems for direct analysis are disclosed including thermal lysers coupled to sample preparation stations. Integrated systems capable of performing sample lysis, labeling and protein fingerprint analysis of biological material, for example, vegetative bacterial cells, bacterial spores and viruses are provided.

  13. Tested Tools You Can Use: Evaluating Earth System Science Courses

    NASA Astrophysics Data System (ADS)

    Lee, S. P.; Prakash, A.; Reider, D.; Baker, D.

    2006-12-01

    Earth System Science Education for the 21st Century (ESSE 21) has created a public access on-line evaluation resource available at http://esse21.usra.edu/evaltoolkit in collaboration with the ESSE 21 institutions, PIs, and evaluators. The purpose of the ESSE toolkit is to offer examples of how evaluation and assessment are/have been used in Earth System Science courses and programs. Our goal is to help instructors recognize different types of assessment and evaluation tools and uses that have proved useful in these courses and provide models for designing assessments in new courses. We have included actual examples of evaluations used by ESSE institution faculty in their own courses. This is not a comprehensive toolkit on educational evaluation and assessment, but it does provide several examples of evaluations that have been used successfully in Earth System Science courses and links to many good web resources on course evaluation. We have provided examples of assessments that are designed to collect information from students before, during and after courses. Some, presented in different formats, are designed to assess what students learn, others are designed to provide course instructors with information they can use to revise their courses. These assessments range from content tests to portfolios, from feedback forms to interviews, and from concept maps to attitude surveys.

  14. Encoding and Decoding Models in Cognitive Electrophysiology

    PubMed Central

    Holdgraf, Christopher R.; Rieger, Jochem W.; Micheli, Cristiano; Martin, Stephanie; Knight, Robert T.; Theunissen, Frederic E.

    2017-01-01

    Cognitive neuroscience has seen rapid growth in the size and complexity of data recorded from the human brain as well as in the computational tools available to analyze this data. This data explosion has resulted in an increased use of multivariate, model-based methods for asking neuroscience questions, allowing scientists to investigate multiple hypotheses with a single dataset, to use complex, time-varying stimuli, and to study the human brain under more naturalistic conditions. These tools come in the form of “Encoding” models, in which stimulus features are used to model brain activity, and “Decoding” models, in which neural features are used to generated a stimulus output. Here we review the current state of encoding and decoding models in cognitive electrophysiology and provide a practical guide toward conducting experiments and analyses in this emerging field. Our examples focus on using linear models in the study of human language and audition. We show how to calculate auditory receptive fields from natural sounds as well as how to decode neural recordings to predict speech. The paper aims to be a useful tutorial to these approaches, and a practical introduction to using machine learning and applied statistics to build models of neural activity. The data analytic approaches we discuss may also be applied to other sensory modalities, motor systems, and cognitive systems, and we cover some examples in these areas. In addition, a collection of Jupyter notebooks is publicly available as a complement to the material covered in this paper, providing code examples and tutorials for predictive modeling in python. The aim is to provide a practical understanding of predictive modeling of human brain data and to propose best-practices in conducting these analyses. PMID:29018336

  15. Chemical Engineering in the Spectrum of Knowledge.

    ERIC Educational Resources Information Center

    Sutija, Davor P.; Prausnitz, John M.

    1990-01-01

    Provides three classroom examples showing students how chemical engineering techniques can supply partial answers to social questions, such as environmental issues. Examples are depletion of the ozone layer, nuclear winter, and air pollution by chemical solvents. (YP)

  16. DOLWD Division of Vocational Rehabilitation

    Science.gov Websites

    around a table, planning the next day's class lessons. One teacher uses a wheelchair. Examples of VR services and provide input on implementing the Assistive Technology Act in Alaska. The VR Program Examples

  17. 15 CFR 710.4 - Overview of scheduled chemicals and examples of affected industries.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... provides examples of the types of industries that may be affected by the CWCR (parts 710 through 729 of...) Batteries; (vi) Cyanic acid; (vii) Toiletries, including perfumes and scents; (viii) Organic phosphate...

  18. 15 CFR 710.4 - Overview of scheduled chemicals and examples of affected industries.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... provides examples of the types of industries that may be affected by the CWCR (parts 710 through 729 of...) Batteries; (vi) Cyanic acid; (vii) Toiletries, including perfumes and scents; (viii) Organic phosphate...

  19. Human Factors in Aerospace: Examples from Projects at NASA Ames

    NASA Technical Reports Server (NTRS)

    Edwards, Tamsyn

    2017-01-01

    Human factors is a critical consideration in system performance and system safety. This presentation provides examples of how human factors can be utilized in a variety of applied research projects to create system wide benefits

  20. Application of DYNA3D in large scale crashworthiness calculations

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

    Benson, D.J.; Hallquist, J.O.; Igarashi, M.

    1986-01-01

    This paper presents an example of an automobile crashworthiness calculation. Based on our experiences with the example calculation, we make recommendations to those interested in performing crashworthiness calculations. The example presented in this paper was supplied by Suzuki Motor Co., Ltd., and provided a significant shakedown for the new large deformation shell capability of the DYNA3D code. 15 refs., 3 figs.

  1. Clinical process examples of cognitive behavioral therapy for psychosis.

    PubMed

    Sivec, Harry J; Montesano, Vicki L

    2013-09-01

    Interest in the practice of Cognitive Behavioral Therapy for persistent psychotic symptoms (CBT-p) has increased dramatically in the last decade. Despite the widespread interest, it remains challenging to obtain adequate training in this approach in the United States. This article provides a few hypothetical examples of the types of interventions commonly used in CBT-p. We provide information about the theoretical basis for the techniques and related research support. We also provide references that offer more detailed discussion of the theory and application of the techniques. 2013 APA, all rights reserved

  2. Photonics and bioinspiration

    NASA Astrophysics Data System (ADS)

    Lewis, Keith

    2014-10-01

    Biological systems exploiting light have benefitted from thousands of years of genetic evolution and can provide insight to support the development of new approaches for imaging, image processing and communication. For example, biological vision systems can provide significant diversity, yet are able to function with only a minimal degree of neural processing. Examples will be described underlying the processes used to support the development of new concepts for photonic systems, ranging from uncooled bolometers and tunable filters, to asymmetric free-space optical communication systems and new forms of camera capable of simultaneously providing spectral and polarimetric diversity.

  3. [Problem areas and examples of best practice in intersectoral medication treatment--a literature review].

    PubMed

    Mehrmann, Lena; Ollenschläger, Günter

    2014-01-01

    Transitions between the outpatient and inpatient sector are a critical phase in medication treatment. This article provides an overview of published problem areas and examples of best practice in the intersectoral medication treatment. Data with regard to related problem areas and examples of best practice was collected in August 2011 by a systematic literature research. The relevant literature was identified using the following databases and search engines: MEDLINE, The Cochrane Library, EMBASE, Google, and Google Scholar. Additionally, a hand search was done on the websites of SpringerLink and Thieme Connect. The initial search yielded a total of 4,409 records which were further selected in two screening steps and analysed according to their relevance. Of the remaining 63 records, 3 exclusively described problem areas, 11 of them examples of best practice, and 49 provided information on both problem areas and examples of best practice with regard to intersectoral medication treatment. Among other things, problem areas include varying legal regulations in inpatient and outpatient medication treatment, drug therapy interruptions after hospital discharge, or deficits in communication and continuity of care. Examples of best practice are projects, programmes, initiatives, recommendations, and points to consider with respect to medication reconciliation, pharmaceutical support, or transitions of care. Problem areas as well as examples of best practice are mainly focused on the transition from inpatient to outpatient care. Copyright © 2013. Published by Elsevier GmbH.

  4. Visualizing flow fields using acoustic Doppler current profilers and the Velocity Mapping Toolbox

    USGS Publications Warehouse

    Jackson, P. Ryan

    2013-01-01

    The purpose of this fact sheet is to provide examples of how the U.S. Geological Survey is using acoustic Doppler current profilers for much more than routine discharge measurements. These instruments are capable of mapping complex three-dimensional flow fields within rivers, lakes, and estuaries. Using the Velocity Mapping Toolbox to process the ADCP data allows detailed visualization of the data, providing valuable information for a range of studies and applications.

  5. CrossTalk: The Journal of Defense Software Engineering. Volume 21, Number 2

    DTIC Science & Technology

    2008-02-01

    data systems are select- ed as tools to provide the data. For example, the Air Force decided to initiate a Reliability Pathfinder to study and define...small projects, and someone just sitting will certainly be noticed more readily. Providing tools for communication such as white boards and open space...community may have to pay for both. In the case of DRILS, we saw that it could potentially interface with the Reliability and Maintainability Infor- mation

  6. Using Skype to support palliative care surveillance.

    PubMed

    Jones, Jacqueline

    2014-02-01

    The aim of this article is to demonstrate how a novel yet important tool can facilitate family involvement in person-centred care, despite geographical distance. The author presents a case study as an in-depth example of the use of Skype in the context of palliative care at home. Skype enhanced family surveillance and symptom management, augmented shared decision making, provided a space for virtual bedside vigil, and ultimately provided the rapport necessary for optimal end of life care.

  7. LANDFIRE 2001 and 2008 Refresh Geographic Area Report--Pacific Southwest

    USGS Publications Warehouse

    Bastion, Henry; Long, Don; Lundberg, Brenda; Kost, Jay; Natharius, Jeffrey A.; Kreilick, Heather; Martin, Charley; Smail, Tobin; Napoli, James; Hann, Wendel

    2011-01-01

    In this report, we (1) address the background and provide details pertaining to why there are two Refresh data sets, (2) explain the requirements, planning, and procedures behind the completion and delivery of the updated products for each of the data product sets, (3) show and describe results, and (4) provide case studies illustrating the performance of LANDFIRE National, LANDFIRE 2001 Refresh and LANDFIRE 2008 Refresh (LF_1.1.0) data products on some example wildland fires.

  8. The U.S. Arms Embargo of 1975-1978 and Its Effects on the Development of the Turkish Defense Industry

    DTIC Science & Technology

    2014-09-01

    in 1974. Several studies provide historical accounts that have been valuable in writing this thesis. For example, Nancy Crawshaw provides a detailed...Turkish President regarding Turkey’s intentions of military intervention in Cyprus. According to Váli, the demeaning tone of 3 Nancy Crawshaw ...252. 21 Crawshaw , “Cyprus: Collapse of the Zurich Agreement,” 341. 22 Váli, Bridge across the Bosphorus, 254. 11

  9. Patient-physician trust: an exploratory study.

    PubMed

    Thom, D H; Campbell, B

    1997-02-01

    Patients' trust in their physicians has recently become a focus of concern, largely owing to the rise of managed care, yet the subject remains largely unstudied. We undertook a qualitative research study of patients' self-reported experiences with trust in a physician to gain further understanding of the components of trust in the context of the patient-physician relationship. Twenty-nine patients participants, aged 26 to 72, were recruited from three diverse practice sites. Four focus groups, each lasting 1.5 to 2 hours, were conducted to explore patients' experiences with trust. Focus groups were audio-recorded, transcribed, and coded by four readers, using principles of grounded theory. The resulting consensus codes were grouped into seven categories of physician behavior, two of which related primarily to technical competence (thoroughness in evaluation and providing appropriate and effective treatment) and five of which were interpersonal (understanding patient's individual experience, expressing caring, communicating clearly and completely, building partnership/sharing power and honesty/respect for patient). Two additional categories were predisposing factors and structural/staffing factors. Each major category had multiple subcategories. Specific examples from each major category are provided. These nine categories of physician behavior encompassed the trust experiences related by the 29 patients. These categories and the specific examples provided by patients provide insights into the process of trust formation and suggest ways in which physicians could be more effective in building and maintaining trust.

  10. Effects of Implementing School-Wide Positive Behavioural Interventions and Supports on Problem Behaviour and Academic Achievement in a Canadian Elementary School

    ERIC Educational Resources Information Center

    Kelm, Joanna L.; McIntosh, Kent; Cooley, Sharon

    2014-01-01

    Although there is much research on School-Wide Positive Behavioural Interventions and Supports (PBIS) in the United States, there is little such research in Canada. The purpose of the current study was to provide a case study example of the relation between implementing PBIS and student academic and behavioural outcomes, as well as student…

  11. Reading the World's Classics Critically: A Keyword-Based Approach to Literary Analysis in Foreign Language Studies

    ERIC Educational Resources Information Center

    García, Nuria Alonso; Caplan, Alison

    2014-01-01

    While there are a number of important critical pedagogies being proposed in the field of foreign language study, more attention should be given to providing concrete examples of how to apply these ideas in the classroom. This article offers a new approach to the textual analysis of literary classics through the keyword-based methodology originally…

  12. Solving Fuzzy Fractional Differential Equations Using Zadeh's Extension Principle

    PubMed Central

    Ahmad, M. Z.; Hasan, M. K.; Abbasbandy, S.

    2013-01-01

    We study a fuzzy fractional differential equation (FFDE) and present its solution using Zadeh's extension principle. The proposed study extends the case of fuzzy differential equations of integer order. We also propose a numerical method to approximate the solution of FFDEs. To solve nonlinear problems, the proposed numerical method is then incorporated into an unconstrained optimisation technique. Several numerical examples are provided. PMID:24082853

  13. Computational organic chemistry: bridging theory and experiment in establishing the mechanisms of chemical reactions.

    PubMed

    Cheng, Gui-Juan; Zhang, Xinhao; Chung, Lung Wa; Xu, Liping; Wu, Yun-Dong

    2015-02-11

    Understanding the mechanisms of chemical reactions, especially catalysis, has been an important and active area of computational organic chemistry, and close collaborations between experimentalists and theorists represent a growing trend. This Perspective provides examples of such productive collaborations. The understanding of various reaction mechanisms and the insight gained from these studies are emphasized. The applications of various experimental techniques in elucidation of reaction details as well as the development of various computational techniques to meet the demand of emerging synthetic methods, e.g., C-H activation, organocatalysis, and single electron transfer, are presented along with some conventional developments of mechanistic aspects. Examples of applications are selected to demonstrate the advantages and limitations of these techniques. Some challenges in the mechanistic studies and predictions of reactions are also analyzed.

  14. Hairy black holes in cubic quasi-topological gravity

    NASA Astrophysics Data System (ADS)

    Dykaar, Hannah; Hennigar, Robie A.; Mann, Robert B.

    2017-05-01

    We construct a class of five dimensional black hole solutions to cubic quasi-topological gravity with conformal scalar hair and study their thermodynamics. We find these black holes provide the second example of black hole λ-lines: a line of second order (continuous) phase transitions, akin to the fluid/superfluid transition of 4He. Examples of isolated critical points are found for spherical black holes, marking the first in the literature to date. We also find various novel and interesting phase structures, including an isolated critical point occurring in conjunction with a double reentrant phase transition. The AdS vacua of the theory are studied, finding ghost-free configurations where the scalar field takes on a non-zero constant value, in notable contrast to the five dimensional Lovelock case.

  15. Quantum Sheaf Cohomology on Grassmannians

    NASA Astrophysics Data System (ADS)

    Guo, Jirui; Lu, Zhentao; Sharpe, Eric

    2017-05-01

    In this paper we study the quantum sheaf cohomology of Grassmannians with deformations of the tangent bundle. Quantum sheaf cohomology is a (0,2) deformation of the ordinary quantum cohomology ring, realized as the OPE ring in A/2-twisted theories. Quantum sheaf cohomology has previously been computed for abelian gauged linear sigma models (GLSMs); here, we study (0,2) deformations of nonabelian GLSMs, for which previous methods have been intractable. Combined with the classical result, the quantum ring structure is derived from the one-loop effective potential. We also utilize recent advances in supersymmetric localization to compute A/2 correlation functions and check the general result in examples. In this paper we focus on physics derivations and examples; in a companion paper, we will provide a mathematically rigorous derivation of the classical sheaf cohomology ring.

  16. Root zone water quality model (RZWQM2): Model use, calibration and validation

    USGS Publications Warehouse

    Ma, Liwang; Ahuja, Lajpat; Nolan, B.T.; Malone, Robert; Trout, Thomas; Qi, Z.

    2012-01-01

    The Root Zone Water Quality Model (RZWQM2) has been used widely for simulating agricultural management effects on crop production and soil and water quality. Although it is a one-dimensional model, it has many desirable features for the modeling community. This article outlines the principles of calibrating the model component by component with one or more datasets and validating the model with independent datasets. Users should consult the RZWQM2 user manual distributed along with the model and a more detailed protocol on how to calibrate RZWQM2 provided in a book chapter. Two case studies (or examples) are included in this article. One is from an irrigated maize study in Colorado to illustrate the use of field and laboratory measured soil hydraulic properties on simulated soil water and crop production. It also demonstrates the interaction between soil and plant parameters in simulated plant responses to water stresses. The other is from a maize-soybean rotation study in Iowa to show a manual calibration of the model for crop yield, soil water, and N leaching in tile-drained soils. Although the commonly used trial-and-error calibration method works well for experienced users, as shown in the second example, an automated calibration procedure is more objective, as shown in the first example. Furthermore, the incorporation of the Parameter Estimation Software (PEST) into RZWQM2 made the calibration of the model more efficient than a grid (ordered) search of model parameters. In addition, PEST provides sensitivity and uncertainty analyses that should help users in selecting the right parameters to calibrate.

  17. The albatross plot: A novel graphical tool for presenting results of diversely reported studies in a systematic review

    PubMed Central

    Jones, Hayley E.; Martin, Richard M.; Lewis, Sarah J.; Higgins, Julian P.T.

    2017-01-01

    Abstract Meta‐analyses combine the results of multiple studies of a common question. Approaches based on effect size estimates from each study are generally regarded as the most informative. However, these methods can only be used if comparable effect sizes can be computed from each study, and this may not be the case due to variation in how the studies were done or limitations in how their results were reported. Other methods, such as vote counting, are then used to summarize the results of these studies, but most of these methods are limited in that they do not provide any indication of the magnitude of effect. We propose a novel plot, the albatross plot, which requires only a 1‐sided P value and a total sample size from each study (or equivalently a 2‐sided P value, direction of effect and total sample size). The plot allows an approximate examination of underlying effect sizes and the potential to identify sources of heterogeneity across studies. This is achieved by drawing contours showing the range of effect sizes that might lead to each P value for given sample sizes, under simple study designs. We provide examples of albatross plots using data from previous meta‐analyses, allowing for comparison of results, and an example from when a meta‐analysis was not possible. PMID:28453179

  18. Discussion [of ``The use of conditional simulation in nuclear-waste-site performance assessment`` by Carol A. Gotway

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

    Downing, D.J.

    1994-05-01

    EPA 40 CFR 191.16 (EPA 1985) states in part that the disposal systems should be designed to provide reasonable expectation that for 1,000 years after disposal, undisturbed performance of the disposal system shall not cause radionuclide concentrations to exceed specified limits. The question is how can one, with the tools that one has today, establish with some degree of confidence that a requirement like that just given will be achieved? Over the last several years, this has been demonstrated through the use of simulation analysis of the system being studied. An example of such a study on nuclear reactor criticalitymore » is described. Then the author discusses Carol Gotway`s study on WIPP. The author believes that work on computer simulation models is extremely important. These are primary tools one has for investigating many complex problems--for example, groundwater contamination, molecular dynamics, climate modeling, and nuclear-reactor accidents. Many of these models are being investigated at the national laboratories but unfortunately often without any help from statisticians. The article by Gotway shows another example of how statistics can be applied to a complicated process to yield practical results.« less

  19. Learning fuzzy information in a hybrid connectionist, symbolic model

    NASA Technical Reports Server (NTRS)

    Romaniuk, Steve G.; Hall, Lawrence O.

    1993-01-01

    An instance-based learning system is presented. SC-net is a fuzzy hybrid connectionist, symbolic learning system. It remembers some examples and makes groups of examples into exemplars. All real-valued attributes are represented as fuzzy sets. The network representation and learning method is described. To illustrate this approach to learning in fuzzy domains, an example of segmenting magnetic resonance images of the brain is discussed. Clearly, the boundaries between human tissues are ill-defined or fuzzy. Example fuzzy rules for recognition are generated. Segmentations are presented that provide results that radiologists find useful.

  20. Sierra Toolkit Manual Version 4.48.

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

    Sierra Toolkit Team

    This report provides documentation for the SIERRA Toolkit (STK) modules. STK modules are intended to provide infrastructure that assists the development of computational engineering soft- ware such as finite-element analysis applications. STK includes modules for unstructured-mesh data structures, reading/writing mesh files, geometric proximity search, and various utilities. This document contains a chapter for each module, and each chapter contains overview descriptions and usage examples. Usage examples are primarily code listings which are generated from working test programs that are included in the STK code-base. A goal of this approach is to ensure that the usage examples will not fall outmore » of date. This page intentionally left blank.« less

  1. The Cognitive Costs of Context: The Effects of Concreteness and Immersiveness in Instructional Examples

    PubMed Central

    Day, Samuel B.; Motz, Benjamin A.; Goldstone, Robert L.

    2015-01-01

    Prior research has established that while the use of concrete, familiar examples can provide many important benefits for learning, it is also associated with some serious disadvantages, particularly in learners’ ability to recognize and transfer their knowledge to new analogous situations. However, it is not immediately clear whether this pattern would hold in real world educational contexts, in which the role of such examples in student engagement and ease of processing might be of enough importance to overshadow any potential negative impact. We conducted two experiments in which curriculum-relevant material was presented in natural classroom environments, first with college undergraduates and then with middle-school students. All students in each study received the same relevant content, but the degree of contextualization in these materials was varied between students. In both studies, we found that greater contextualization was associated with poorer transfer performance. We interpret these results as reflecting a greater degree of embeddedness for the knowledge acquired from richer, more concrete materials, such that the underlying principles are represented in a less abstract and generalizable form. PMID:26648905

  2. Does drought always cause economic losses in agriculture? An empirical investigation on the distributive effects of drought events in some areas of Southern Europe.

    PubMed

    Musolino, Dario Antonino; Massarutto, Antonio; de Carli, Alessandro

    2018-08-15

    Studies on the impacts of drought usually make the implicit assumption that there will always be a negative effect on the environment, the economy and society. However, other approaches, based for example on the framework provided by the consumer surplus theory, try to focus on the distributive effects of drought. In this paper, in the wake of such approaches, we address the question of the distributive effects of drought on agriculture, exploring and studying in depth the characteristics, the signs and the magnitude of the socio-economic impacts of droughts on specific significant agricultural areas in Europe. According to our estimations, essentially based on the analysis of trends and changes in production and prices, we found that drought events can create not only "losers", but also "winners". Some social groups (for example, some categories of farmers) can even "win", while others "lose" (for example, final consumers). These findings apparently introduce questions of social justice in the evaluation of the impacts of climate change. Copyright © 2018 Elsevier B.V. All rights reserved.

  3. Misinformation in eating disorder communications: Implications for science communication policy

    NASA Astrophysics Data System (ADS)

    Radford, Benjamin

    Though eating disorders are a serious public health threat, misinformation about these potentially deadly diseases is widespread. This study examines eating disorder information from a wide variety of sources including medical journals, news reports, and popular social activist authors. Examples of misinformation were identified, and three aspects of eating disorders (prevalence, mortality, and etiology) were chosen as key indicators of scientific illiteracy about those illnesses. A case study approach was then adopted to trace examples of misinformation to their original sources whenever possible. A dozen examples include best-selling books, national eating disorder information clearinghouses; the news media; documentary feature films; and a PBS television Nova documentary program. The results provide an overview of the ways in which valid information becomes flawed, including poor journalism, lack of fact-checking, plagiarism, and typographical errors. Less obvious---and perhaps even more important---much of the misinformation results from scientific research being co-opted to promote specific sociopolitical agendas. These results highlight a significant gap in science communication between researchers, the medical community, and the public regarding these diseases, and recommendations to address the problem are offered.

  4. Cost effectiveness analysis for nursing research.

    PubMed

    Bensink, Mark E; Eaton, Linda H; Morrison, Megan L; Cook, Wendy A; Curtis, R Randall; Gordon, Deborah B; Kundu, Anjana; Doorenbos, Ardith Z

    2013-01-01

    With ever-increasing pressure to reduce costs and increase quality, nurses are faced with the challenge of producing evidence that their interventions and care provide value. Cost effectiveness analysis (CEA) is a tool that can be used to provide this evidence by comparative evaluation of the costs and consequences of two or more alternatives. The aim of this article is to introduce the essential components of CEA to nurses and nurse researchers with the protocol of a recently funded cluster randomized controlled trial as an example. This article provides (a) a description of the main concepts and key steps in CEA and (b) a summary of the background and objectives of a CEA designed to evaluate a nursing-led pain and symptom management intervention in rural communities compared with the current usual care. As the example highlights, incorporating CEA into nursing research studies is feasible. The burden of the additional data collection required is offset by quantitative evidence of the given intervention's cost and impact using humanistic and economic outcomes. At a time when U.S. healthcare is moving toward accountable care, the information provided by CEA will be an important additional component of the evidence produced by nursing research.

  5. Do polymorphisms of 5,10-methylenetetrahydrofolate reductase (MTHFR) gene affect the risk of childhood acute lymphoblastic leukemia?

    PubMed

    Pereira, Tiago Veiga; Rudnicki, Martina; Pereira, Alexandre Costa; Pombo-de-Oliveira, Maria S; Franco, Rendrik França

    2006-01-01

    Meta-analysis has become an important statistical tool in genetic association studies, since it may provide more powerful and precise estimates. However, meta-analytic studies are prone to several potential biases not only because the preferential publication of "positive'' studies but also due to difficulties in obtaining all relevant information during the study selection process. In this letter, we point out major problems in meta-analysis that may lead to biased conclusions, illustrating an empirical example of two recent meta-analyses on the relation between MTHFR polymorphisms and risk of acute lymphoblastic leukemia that, despite the similarity in statistical methods and period of study selection, provided partially conflicting results.

  6. Career Development for Transitioning Veterans. Monograph Series

    ERIC Educational Resources Information Center

    McCormick, Carmen Stein; Osborn, Debra S.; Hayden, Seth C. W.; Van Hoose, Dan

    2013-01-01

    The purpose of this book is to increase career practitioners' awareness of the transition issues and resources specific to veterans and to provide several examples of how a practitioner might walk a veteran through the career planning process. Case studies based on interviews with real veterans by the authors and military consultants (Thomas…

  7. Using Cocoa and Chocolate to Teach Human Geography

    ERIC Educational Resources Information Center

    Alberts, Heike C.

    2010-01-01

    Food topics are uniquely suited to increase students' interest in human geography. A highly processed food like chocolate can be studied in a variety of different ways, making it possible to include chocolate examples and activities at various points in a human geography class. The goals of this article are to provide sufficient background…

  8. Amazing Physics: Learning about Work, Energy and Projectile Motion in a Historical Context

    ERIC Educational Resources Information Center

    Tural, Guner

    2013-01-01

    Teaching physics through a historical context provides effective learning and increases students' motivation for and interest in physics. For example, trebuchets and mangonels may be interesting historical contexts for learning about energy, work, and projectile motion. In this study, the implementation of physics lessons related to these subjects…

  9. Errors and Allegations about Research on Homework

    ERIC Educational Resources Information Center

    Marzano, Robert J.; Pickering, Debra J.

    2007-01-01

    This article provides a response to Kohn's article entitled "Abusing Research: The Study of Homework and Other Examples" that appeared in the September 2006 issue of the "Kappan." There Kohn asserted that many of those who conduct research on homework and report on that research misrepresent research findings. He specifically mentioned a set of…

  10. Resources for Social Change II: A Guide for School Administrators.

    ERIC Educational Resources Information Center

    Wittes, Simon; And Others

    This manual provides analyses of issues on and examples of programs relevant to contemporary school crises. Five authors comment on (1) the administrator's dilemma in school disruptions; (2) a case study of school disruption and the responses of two school administrators; (3) three major clusters of issues relevant to the state of American…

  11. Power Analysis for Models of Change in Cluster Randomized Designs

    ERIC Educational Resources Information Center

    Li, Wei; Konstantopoulos, Spyros

    2017-01-01

    Field experiments in education frequently assign entire groups such as schools to treatment or control conditions. These experiments incorporate sometimes a longitudinal component where for example students are followed over time to assess differences in the average rate of linear change, or rate of acceleration. In this study, we provide methods…

  12. Hemiplegia in Men: A Case Study

    ERIC Educational Resources Information Center

    Chan, Zenobia C. Y.; Wong, Gary C. T.

    2012-01-01

    Hemiplegia, or paralysis of one side of the body, is caused by injury or illness (for example, a stroke), and leads to other disabilities. People with hemiplegia are limited physically in their daily activities. This limitation affects their social well-being and thus can lead to depression. This paper provides a comprehensive literature review on…

  13. Recognizing and Conducting Opportunistic Experiments in Education: A Guide for Policymakers and Researchers. REL 2014-037

    ERIC Educational Resources Information Center

    Resch, Alexandra; Berk, Jillian; Akers, Lauren

    2014-01-01

    An opportunistic experiment is a type of randomized controlled trial that studies the effects of a planned intervention or policy change with minimal added disruption and cost. This guide defines opportunistic experiments and provides examples, discusses issues to consider when identifying potential opportunistic experiments, and outlines the…

  14. Ideas and Evidence in Science.

    ERIC Educational Resources Information Center

    Talbot, Chris

    2000-01-01

    Describes how some of the Theory of Knowledge (ToK) requirements, which is a central part of the International Baccalaurate (IB) Diploma program, for the natural sciences component can be addressed through case studies from the history of chemistry and related subjects. Provides examples for the 'Ideas and evidence in science' which can be useful…

  15. Strategies for Reforming University/State Relationships: Australia's Experience Sets Examples.

    ERIC Educational Resources Information Center

    McGuire, Harriet C.

    1997-01-01

    The World Bank's recommendations for higher education policy in Africa offer an appropriate framework for comparison with recent educational policy changes in Australia, particularly in the area of university financing. Australia provides a case study of how national policies have had a dramatic and rapid effect on education and have quickly…

  16. Somatic embryogenesis and polyamines in woody plants

    Treesearch

    Rakesh Minocha; Subhash C. Minocha; Liisa Kaarina Simola

    1995-01-01

    The formation of whole plants from cultured cells is interesting not only because of its applications for mass propagation but also as a prime example of the process of controlled development and differentiation in plants. Cultures capable of producing somatic embryos with high frequency provide ideal experimental systems to study and understand the biochemical basis...

  17. Power Analysis in Two-Level Unbalanced Designs

    ERIC Educational Resources Information Center

    Konstantopoulos, Spyros

    2010-01-01

    Previous work on statistical power has discussed mainly single-level designs or 2-level balanced designs with random effects. Although balanced experiments are common, in practice balance cannot always be achieved. Work on class size is one example of unbalanced designs. This study provides methods for power analysis in 2-level unbalanced designs…

  18. Effects of Multimedia Vocabulary Instruction on Adolescents with Learning Disabilities

    ERIC Educational Resources Information Center

    Kennedy, Michael J.; Deshler, Donald D.; Lloyd, John Wills

    2015-01-01

    The purpose of this experimental study is to investigate the effects of using content acquisition podcasts (CAPs), an example of instructional technology, to provide vocabulary instruction to adolescents with and without learning disabilities (LD). A total of 279 urban high school students, including 30 with LD in an area related to reading, were…

  19. Examining Mathematics Teachers' Beliefs through Multiple Lenses.

    ERIC Educational Resources Information Center

    Mewborn, Denise S.

    This paper presents a longitudinal study of an elementary mathematics teacher and describes her beliefs system in terms of Green's (1971) metaphor and provides examples of how her beliefs were enacted in her classroom practices. Dewey's (1933) notion of reflective thinking is used to explain the changes in the structure of the teacher's belief…

  20. Access to Information in Both CitaDel and FirstSearch: A Comparative Study of Dissertation Coverage.

    ERIC Educational Resources Information Center

    Perry, Stephen; Salisbury, Lutishoor

    1995-01-01

    Presents a comparative analysis of electronic access to theses and dissertations through CitaDel and FirstSearch. Highlights include the effectiveness and ease of use in providing enduser access; strengths and weaknesses of searching capabilities; coverage; pricing; and examples of direct retrieval comparison. (LRW)

  1. The Universality of Good Teaching: A Study of Descriptors across Disciplines

    ERIC Educational Resources Information Center

    Samples, Jerry W.; Copeland, Susan E.

    2013-01-01

    The literature on teaching is replete with definitions and examples of good teaching. They include the traits and characteristics of the best instructors, teachers, and professors. In recent years, the literature included the impact of teaching on the student learner, thus coming full circle, from teacher to learner. The literature provides good…

  2. Epigenetics and the Biological Basis of Gene x Environment Interactions

    ERIC Educational Resources Information Center

    Bagot, Rosemary C.; Meaney, Michael J.

    2010-01-01

    Objective: Child and adolescent psychiatry is rife with examples of the sustained effects of early experience on brain function. The study of behavioral genetics provides evidence for a relation between genomic variation and personality and with the risk for psychopathology. A pressing challenge is that of "conceptually" integrating findings from…

  3. Reconciling Divergent Perspectives: Judith Wallerstein, Quantitative Family Research, and Children of Divorce.

    ERIC Educational Resources Information Center

    Amato, Paul R.

    2003-01-01

    Although Judith Wallerstein's research on children with divorced parents has been influential, many quantitative family scholars have criticized her methods and conclusions. This article provides examples from the Marital Instability Over the Life Course study to illustrate the magnitude of divorce effects and concludes with a call for a…

  4. The User Perspective in Performance Auditing--A Case Study of Norway

    ERIC Educational Resources Information Center

    Arthur, Arnfrid; Rydland, Lars Tore; Amundsen, Kristin

    2012-01-01

    The user perspective is an important contextual factor for Supreme Audit Institutions (SAIs). This article provides examples from performance audits in Norway and explores why the user perspective has become important in performance audit practices. It shows that user satisfaction can be employed as a key performance indicator of effectiveness of…

  5. Mind, Brain, and Literacy: Biomarkers as Usable Knowledge for Education

    ERIC Educational Resources Information Center

    Goswami, Usha

    2009-01-01

    Neuroscience has the potential to make some very exciting contributions to education and pedagogy. However, it is important to ask whether the insights from neuroscience studies can provide "usable knowledge" for educators. With respect to literacy, for example, current neuroimaging methods allow us to ask research questions about how the brain…

  6. Academic Writing in Korea: Its Dynamic Landscape and Implications for Intercultural Rhetoric

    ERIC Educational Resources Information Center

    Kim, Eun-Young Julia

    2017-01-01

    Previous studies on intercultural rhetoric have frequently drawn from examples from Asian writers, especially those of Chinese and Japanese origin, but relatively little information has surfaced in scholarly literature regarding L2 writers from Korea. To fill this gap, this article provides an overview of how academic writing is conceived and…

  7. Promoting Community for Online Learners in Special Education

    ERIC Educational Resources Information Center

    West, Elizabeth; Jones, Phyllis; Semon, Sarah

    2012-01-01

    This study examined the sense of community in an online course for special education teachers enrolled in a master's program. The sense of community in an online environment may contribute to students' success and satisfaction (Knapczyk, Chapman, Rodes, & Chung, 2001). This article provides an example of a process for online community development…

  8. Connecting Science and Technology

    ERIC Educational Resources Information Center

    Pleasants, Jacob

    2017-01-01

    Helping students understand the Nature of Science (NOS) is a long-standing goal of science education. One method is to provide students examples of science history in the form of short stories. This article modifies that approach, using historical case studies to address both the history of science and the history of technology, as well as the…

  9. Sustainability with an Ethical Aim: Lessons from an American Nun in Amazonia

    ERIC Educational Resources Information Center

    Demaree, Stephanie

    2012-01-01

    Research Topic: An exploration into human imagination, ethical aim and action are the progenitors for reconciliation between humans and their environment. This study of two successful projects in Brazil provides an example of working toward a balance between human endeavors and sustainable environments. This inquiry is an exploration that…

  10. Integrating Science and Policy: A Case Study of the Hubbard Brook Research Foundation Science Links Program

    ERIC Educational Resources Information Center

    Driscoll, Charles T.; Lambert, Kathy Fallon; Weathers, Kathleen C.

    2011-01-01

    Scientists, related professionals, and the public have for decades called for greater interaction among scientists, policymakers, and the media to address contemporary environmental challenges. Practical examples of effective "real-world" programs designed to catalyze interactions and provide relevant science are few. Existing successful models…

  11. French Interrogative Structures: A New Pedagogical Norm for the 21st-Century Classroom

    ERIC Educational Resources Information Center

    Antes, Theresa A.

    2016-01-01

    This study investigated interrogative structures most frequently used by native speakers of French, in an attempt to reconcile differences between language forms taught in the French as a foreign language classroom and those that are encountered in authentic input. Radio, television, and magazine interviews provided multiple examples of…

  12. Short Shrift to Long Lists: An Alternative Approach to the Development of Performance Standards for School Principals.

    ERIC Educational Resources Information Center

    Louden, William; Wildy, Helen

    1999-01-01

    Describes examples of standards frameworks for principals' work operant in three countries and describes an alternative approach based on interviewing 40 Australian principals. By combining qualitative case studies with probabilistic measurement techniques, the alternative approach provides contextually rich descriptions of growth in performance…

  13. Preschool Teacher Education as an Example of an Open Social System

    ERIC Educational Resources Information Center

    Tekmen, Belkis

    2017-01-01

    With the realization of the substantial long-term educational, social, and economic benefits produced by high-quality preschool education, preschool teachers' education has come under increasing scrutiny in recent years. Moreover, other than the studies that focus on providing evidence for the impact of preschool education on children's outcomes,…

  14. Research and Action: The Role of an Educational Center.

    ERIC Educational Resources Information Center

    Flugman, Bert

    1986-01-01

    Discusses the Center for Advanced Study in Education (CASE) in Manhattan as a representative research and development center in a collaborative role with the New York City Schools. Presents its role as educational problem solver for immediate solutions rather than for interesting findings. Provides examples of three on-going problem solving…

  15. Putting the "Evidence" in Evidence-Based: Utilizing Institutional Research to Drive Gateway-Course Reform

    ERIC Educational Resources Information Center

    Berg, Emily A.; Hanson, Mark

    2017-01-01

    This chapter provides an example of how one university's institutional research office played an active role in using data from institutional studies to guide the university toward courses ripe for change, faculty toward successful teaching strategies, students toward successful learning behaviors, and the university toward assessing the impact of…

  16. Promoting Creativity in International Business Education: A Protocol for Student-Constructed Cases

    ERIC Educational Resources Information Center

    Riordan, Diane A.; Sullivan, M. Cathy; Fink, Danny

    2003-01-01

    Case studies, including "archival cases," "documentary cases," "living cases," and "learner-generated cases," are popular teaching methods in the international business curriculum. In this paper we present a protocol for student-constructed cases, an extension of the learner-generated case, and provide an example using foreign currency exchange…

  17. Ubiquitous Learning Website: Scaffold Learners by Mobile Devices with Information-Aware Techniques

    ERIC Educational Resources Information Center

    Chen, G. D.; Chang, C. K.; Wang, C. Y.

    2008-01-01

    The portability and immediate communication properties of mobile devices influence the learning processes in interacting with peers, accessing resources and transferring data. For example, the short message and browsing functions in a cell phone provide users with timely and adaptive information access. Although many studies of mobile learning…

  18. Medical Settings as a Context for Research on Cognitive Development

    ERIC Educational Resources Information Center

    Salmon, Karen; Brown, Deirdre A.

    2013-01-01

    Medical contexts provide a rich opportunity to study important theoretical questions in cognitive development and to investigate the influence of a range of interacting factors relating to the child, the experience, and the broader social context on children's cognition. In the context of examples of research investigating these issues, we…

  19. The Lived Experiences of Nurses Transitioning to a Preceptor Role

    ERIC Educational Resources Information Center

    Miller, Janice Ampil

    2013-01-01

    This study explores the lived experiences of nurses who have transitioned to a nurse preceptor role and provides examples of how individuals learn in the workplace. Historically, nurses who agreed to become preceptors were chosen based on their availability and experience, not necessarily their teaching and learning abilities. Nursing research has…

  20. Physics Education in Virtual Reality: An Example

    ERIC Educational Resources Information Center

    Kaufmann, Hannes; Meyer, Bernd

    2009-01-01

    We present an immersive virtual reality (VR) application for physics education. It utilizes a recent physics engine developed for the PC gaming market to simulate physical experiments correctly and accurately. Students are enabled to actively build their own experiments and study them. A variety of tools are provided to analyze forces, mass, paths…

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