Concept Landscapes: Aggregating Concept Maps for Analysis

ERIC Educational Resources Information Center

Mühling, Andreas

2017-01-01

This article presents "concept landscapes"--a novel way of investigating the state and development of knowledge structures in groups of persons using concept maps. Instead of focusing on the assessment and evaluation of single maps, the data of many persons is aggregated and data mining approaches are used in analysis. New insights into…

Advanced propulsion concepts

NASA Technical Reports Server (NTRS)

Frisbee, Robert H.

1991-01-01

A variety of Advanced Propulsion Concepts (APC) is discussed. The focus is on those concepts that are sufficiently near-term that they could be developed for the Space Exploration Initiative. High-power (multi-megawatt) electric propulsion, solar sails, tethers, and extraterrestrial resource utilization concepts are discussed. A summary of these concepts and some general conclusions on their technology development needs are presented.

Threshold Concepts and Conceptions: Student Learning in Introductory Management Courses

ERIC Educational Resources Information Center

Wright, April L.; Gilmore, Anne

2012-01-01

This article explores how insights from the broader education literature on threshold concepts and conceptions can be applied to improve the teaching of undergraduate introductory management courses. The authors propose that these courses are underpinned by the threshold conception, or "underlying game," that management is a practice…

Concept similarity and related categories in information retrieval using formal concept analysis

NASA Astrophysics Data System (ADS)

Eklund, P.; Ducrou, J.; Dau, F.

2012-11-01

The application of formal concept analysis to the problem of information retrieval has been shown useful but has lacked any real analysis of the idea of relevance ranking of search results. SearchSleuth is a program developed to experiment with the automated local analysis of Web search using formal concept analysis. SearchSleuth extends a standard search interface to include a conceptual neighbourhood centred on a formal concept derived from the initial query. This neighbourhood of the concept derived from the search terms is decorated with its upper and lower neighbours representing more general and special concepts, respectively. SearchSleuth is in many ways an archetype of search engines based on formal concept analysis with some novel features. In SearchSleuth, the notion of related categories - which are themselves formal concepts - is also introduced. This allows the retrieval focus to shift to a new formal concept called a sibling. This movement across the concept lattice needs to relate one formal concept to another in a principled way. This paper presents the issues concerning exploring, searching, and ordering the space of related categories. The focus is on understanding the use and meaning of proximity and semantic distance in the context of information retrieval using formal concept analysis.

Preservice Teachers' Alternative Conceptions in Elementary Science Concepts

ERIC Educational Resources Information Center

Koc, Isil; Yager, Robert E.

2016-01-01

This study was conducted to investigate the extent to which preservice teachers held alternative conceptions in elementary science concepts. Eighty-six preservice elementary teachers participated in this study. Twelve preservice elementary teachers participated in follow-up interviews. Data were collected through the use of Alternative Conceptions…

University Students' Conceptions about the Concept of Gene: Interest of Historical Approach

ERIC Educational Resources Information Center

Boujemaa, Agorram; Pierre, Clement; Sabah, Selmaoui; Salaheddine, Khzami; Jamal, Chafik; Abdellatif, Chiadli

2010-01-01

Concepts of genetics are often difficult to teach, specifically the central concept of gene. Even the scientists disagree when defining this concept. This paper investigates university students' understanding about the gene and its functions. The results show the dominance of two conceptions of the gene: the Neoclassical model and the Mendelian…

Threshold concepts in prosthetics.

PubMed

Hill, Sophie

2017-12-01

Curriculum documents identify key concepts within learning prosthetics. Threshold concepts provide an alternative way of viewing the curriculum, focussing on the ways of thinking and practicing within prosthetics. Threshold concepts can be described as an opening to a different way of viewing a concept. This article forms part of a larger study exploring what students and staff experience as difficult in learning about prosthetics. To explore possible threshold concepts within prosthetics. Qualitative, interpretative phenomenological analysis. Data from 18 students and 8 staff at two universities with undergraduate prosthetics and orthotics programmes were generated through interviews and questionnaires. The data were analysed using an interpretative phenomenological analysis approach. Three possible threshold concepts arose from the data: 'how we walk', 'learning to talk' and 'considering the person'. Three potential threshold concepts in prosthetics are suggested with possible implications for prosthetics education. These possible threshold concepts involve changes in both conceptual and ontological knowledge, integrating into the persona of the individual. This integration occurs through the development of memories associated with procedural concepts that combine with disciplinary concepts. Considering the prosthetics curriculum through the lens of threshold concepts enables a focus on how students learn to become prosthetists. Clinical relevance This study provides new insights into how prosthetists learn. This has implications for curriculum design in prosthetics education.

BigBOSS: The Ground-Based Stage IV BAO Experiment

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

Schlegel, David; Bebek, Chris; Heetderks, Henry

2009-04-01

The BigBOSS experiment is a proposed DOE-NSF Stage IV ground-based dark energy experiment to study baryon acoustic oscillations (BAO) and the growth of structure with an all-sky galaxy redshift survey. The project is designed to unlock the mystery of dark energy using existing ground-based facilities operated by NOAO. A new 4000-fiber R=5000 spectrograph covering a 3-degree diameter field will measure BAO and redshift space distortions in the distribution of galaxies and hydrogen gas spanning redshifts from 0.2< z< 3.5. The Dark Energy Task Force figure of merit (DETF FoM) for this experiment is expected to be equal to that ofmore » a JDEM mission for BAO with the lower risk and cost typical of a ground-based experiment.« less

Uncorrelated measurements of the cosmic expansion history and dark energy from supernovae

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

Wang Yun; Tegmark, Max; Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania 19104

We present a method for measuring the cosmic expansion history H(z) in uncorrelated redshift bins, and apply it to current and simulated type Ia supernova data assuming spatial flatness. If the matter density parameter {omega}{sub m} can be accurately measured from other data, then the dark-energy density history X(z)={rho}{sub X}(z)/{rho}{sub X}(0) can trivially be derived from this expansion history H(z). In contrast to customary 'black box' parameter fitting, our method is transparent and easy to interpret: the measurement of H(z){sup -1} in a redshift bin is simply a linear combination of the measured comoving distances for supernovae in that bin,more » making it obvious how systematic errors propagate from input to output. We find the Riess et al. (2004) gold sample to be consistent with the vanilla concordance model where the dark energy is a cosmological constant. We compare two mission concepts for the NASA/DOE Joint Dark-Energy Mission (JDEM), the Joint Efficient Dark-energy Investigation (JEDI), and the Supernova Accelaration Probe (SNAP), using simulated data including the effect of weak lensing (based on numerical simulations) and a systematic bias from K corrections. Estimating H(z) in seven uncorrelated redshift bins, we find that both provide dramatic improvements over current data: JEDI can measure H(z) to about 10% accuracy and SNAP to 30%-40% accuracy.« less

Trois Conceptions de l'apprentissage (Three Conceptions of Learning).

ERIC Educational Resources Information Center

Janitza, Jean

1990-01-01

Three broad conceptions of second-language learning and teaching (behaviorist, cognitive, and a third labeled "voluntarist") are described and compared, and issues in the choice between these different conceptions for classroom use are examined. (MSE)

A Comparison Study: Assessing Teachers' Conceptions with the Chemistry Concepts Inventory

ERIC Educational Resources Information Center

Kruse, Rebecca A.; Roehrig, Gillian H.

2005-01-01

The conceptions of chemistry teachers with diverse backgrounds within a large urban district are assessed. The Chemistry Concepts Inventory (CCI) and Mulford and Robinson's research study were utilized for reference and conceptual factors contributing to teachers' conceptions such as degree major and credential status were analyzed from data…

Native Language Self-Concept and Reading Self-Concept: Same or Different?

ERIC Educational Resources Information Center

Arens, A. Katrin; Yeung, Alexander Seeshing; Hasselhorn, Marcus

2014-01-01

In assessing verbal academic self-concept with preadolescents, researchers have used scales for students' self-concepts in reading and in their native language interchangeably. The authors conducted 3 studies with German students to test whether reading and German (i.e., native language) self-concepts can be treated as the same or different…

Concept Mapping

ERIC Educational Resources Information Center

Technology & Learning, 2005

2005-01-01

Concept maps are graphical ways of working with ideas and presenting information. They reveal patterns and relationships and help students to clarify their thinking, and to process, organize and prioritize. Displaying information visually--in concept maps, word webs, or diagrams--stimulates creativity. Being able to think logically teaches…

Analyzing polysemous concepts from a clinical perspective: Application to auditing concept categorization in the UMLS

PubMed Central

Mougin, Fleur; Bodenreider, Olivier; Burgun, Anita

2015-01-01

Objectives Polysemy is a frequent issue in biomedical terminologies. In the Unified Medical Language System (UMLS), polysemous terms are either represented as several independent concepts, or clustered into a single, multiply-categorized concept. The objective of this study is to analyze polysemous concepts in the UMLS through their categorization and hierarchical relations for auditing purposes. Methods We used the association of a concept with multiple Semantic Groups (SGs) as a surrogate for polysemy. We first extracted multi-SG (MSG) concepts from the UMLS Metathesaurus and characterized them in terms of the combinations of SGs with which they are associated. We then clustered MSG concepts in order to identify major types of polysemy. We also analyzed the inheritance of SGs in MSG concepts. Finally, we manually reviewed the categorization of the MSG concepts for auditing purposes. Results The 1208 MSG concepts in the Metathesaurus are associated with 30 distinct pairs of SGs. We created 75 semantically homogeneous clusters of MSG concepts, and 276 MSG concepts could not be clustered for lack of hierarchical relations. The clusters were characterized by the most frequent pairs of semantic types of their constituent MSG concepts. MSG concepts exhibit limited semantic compatibility with their parent and child concepts. A large majority of MSG concepts (92%) are adequately categorized. Examples of miscategorized concepts are presented. Conclusion This work is a systematic analysis and manual review of all concepts categorized by multiple SGs in the UMLS. The correctly-categorized MSG concepts do reflect polysemy in the UMLS Metathesaurus. The analysis of inheritance of SGs proved useful for auditing concept categorization in the UMLS. PMID:19303057

Evolutionary space platform concept study. Volume 2, part B: Manned space platform concepts

NASA Technical Reports Server (NTRS)

1982-01-01

Logical, cost-effective steps in the evolution of manned space platforms are investigated and assessed. Tasks included the analysis of requirements for a manned space platform, identifying alternative concepts, performing system analysis and definition of the concepts, comparing the concepts and performing programmatic analysis for a reference concept.

Deep Borehole Disposal Concept: Development of Universal Canister Concept of Operations

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

Rigali, Mark J.; Price, Laura L.

This report documents key elements of the conceptual design for deep borehole disposal of radioactive waste to support the development of a universal canister concept of operations. A universal canister is a canister that is designed to be able to store, transport, and dispose of radioactive waste without the canister having to be reopened to treat or repackage the waste. This report focuses on the conceptual design for disposal of radioactive waste contained in a universal canister in a deep borehole. The general deep borehole disposal concept consists of drilling a borehole into crystalline basement rock to a depth ofmore » about 5 km, emplacing WPs in the lower 2 km of the borehole, and sealing and plugging the upper 3 km. Research and development programs for deep borehole disposal have been ongoing for several years in the United States and the United Kingdom; these studies have shown that deep borehole disposal of radioactive waste could be safe, cost effective, and technically feasible. The design concepts described in this report are workable solutions based on expert judgment, and are intended to guide follow-on design activities. Both preclosure and postclosure safety were considered in the development of the reference design concept. The requirements and assumptions that form the basis for the deep borehole disposal concept include WP performance requirements, radiological protection requirements, surface handling and transport requirements, and emplacement requirements. The key features of the reference disposal concept include borehole drilling and construction concepts, WP designs, and waste handling and emplacement concepts. These features are supported by engineering analyses.« less

Concept analysis of mentoring.

PubMed

2013-10-01

The purpose of a concept analysis is to examine the structure and function of a concept by defining its attributes and internal structure. Concept analysis can clarify an overused or vague concept and promote mutual understanding by providing a precise operational definition. Mentoring is a concept more fully used by other fields, such as business, than in nursing and may not always translate well for use in nursing. Therefore, clarifying the meaning of the existing concept of mentoring and developing an operational definition for use in nursing are aims of this concept analysis. Mentoring is broadly based and concentrates on developing areas such as career progression, scholarly achievements, and personal development. Mentoring relationships are based around developing reciprocity and accountability between each partner. Mentoring is seen related to transition in practice, role acquisition, and socialization, as a way to support new colleagues. Mentorship is related to nurses' success in nursing practice linked to professionalism, nursing quality improvement, and self-confidence.

Joint Concept Correlation and Feature-Concept Relevance Learning for Multilabel Classification.

PubMed

Zhao, Xiaowei; Ma, Zhigang; Li, Zhi; Li, Zhihui

2018-02-01

In recent years, multilabel classification has attracted significant attention in multimedia annotation. However, most of the multilabel classification methods focus only on the inherent correlations existing among multiple labels and concepts and ignore the relevance between features and the target concepts. To obtain more robust multilabel classification results, we propose a new multilabel classification method aiming to capture the correlations among multiple concepts by leveraging hypergraph that is proved to be beneficial for relational learning. Moreover, we consider mining feature-concept relevance, which is often overlooked by many multilabel learning algorithms. To better show the feature-concept relevance, we impose a sparsity constraint on the proposed method. We compare the proposed method with several other multilabel classification methods and evaluate the classification performance by mean average precision on several data sets. The experimental results show that the proposed method outperforms the state-of-the-art methods.

High Altitude Venus Operational Concept (HAVOC): Proofs of Concept

NASA Technical Reports Server (NTRS)

Jones, Christopher A.; Arney, Dale C.; Bassett, George Z.; Clark, James R.; Hennig, Anthony I.; Snyder, Jessica C.

2015-01-01

The atmosphere of Venus is an exciting destination for both further scientific study and future human exploration. A recent internal NASA study of a High Altitude Venus Operational Concept (HAVOC) led to the development of an evolutionary program for the exploration of Venus, with focus on the mission architecture and vehicle concept for a 30-day crewed mission into Venus's atmosphere at 50 kilometers. Key technical challenges for the mission include performing the aerocapture maneuvers at Venus and Earth, inserting and inflating the airship at Venus during the entry sequence, and protecting the solar panels and structure from the sulfuric acid in the atmosphere. Two proofs of concept were identified that would aid in addressing some of the key technical challenges. To mitigate the threat posed by the sulfuric acid ambient in the atmosphere of Venus, a material was needed that could protect the systems while being lightweight and not inhibiting the performance of the solar panels. The first proof of concept identified candidate materials and evaluated them, finding FEP-Teflon (Fluorinated Ethylene Propylene-Teflon) to maintain 90 percent transmittance to relevant spectra even after 30 days of immersion in concentrated sulfuric acid. The second proof of concept developed and verified a packaging algorithm for the airship envelope to inform the entry, descent, and inflation analysis.

SCIENCE BRIEF: ADVANCED CONCEPTS

EPA Science Inventory

Research on advanced concepts will evaluate and demonstrate the application of innovative infrastructure designs, management procedures and operational approaches. Advanced concepts go beyond simple asset management. The infusion of these advanced concepts into established wastew...

General Self-Concept, Self-Concept of Academic Ability and School Achievement: Implications for "Causes" of Self-Concept.

ERIC Educational Resources Information Center

West, Charles K.; And Others

1980-01-01

Research on relationships between self-concept and school achievement and between self-concept of academic ability and school achievement is reviewed. Demographic research is also examined regarding differences relating to sex, socio-economic status, ethnicity, race, birth order, and age. (Author/MLW)

Students’ conceptions analysis on several electricity concepts

NASA Astrophysics Data System (ADS)

Saputro, D. E.; Sarwanto, S.; Sukarmin, S.; Ratnasari, D.

2018-05-01

This research is aimed to analyse students’ conceptions on several electricity concept. This is a descriptive research with the subjects of new students of Sebelas Maret University. The numbers of the subject were 279 students that consisted of several departments such as science education, physics education, chemistry education, biology education and mathematics education in the academic year of 2017/2018. The instrument used in this research was the multiple-choice test with arguments. Based on the result of the research and analysis, it can be concluded that most of the students still find misconceptions and do not understand electricity concept on sub-topics such as electric current characteristic in the series and parallel arrangement, the value of capacitor capacitance, the influence of the capacitor charge and discharge towards the loads, and the amount of capacitor series arrangement. For the future research, it is suggested to improve students’ conceptual understanding with appropriate learning method and assessment instrument because electricity is one of physics material that closely related with students’ daily life.

The AIChE "Concept Warehouse": A Web-Based Tool to Promote Concept-Based Instruction

ERIC Educational Resources Information Center

Koretsky, Milo D.; Falconer, John L.; Brooks, Bill J.; Gilbuena, Debra M.; Silverstein, David L.; Smith, Christina; Miletic, Marina

2014-01-01

This paper describes the "AIChE Concept Warehouse," a recently developed web-based instructional tool that enables faculty within the discipline of chemical engineering to better provide their students concept-based instruction. It currently houses over 2,000 concept questions and 10 concept inventories pertinent to courses throughout…

Creative Concept Mapping.

ERIC Educational Resources Information Center

Brown, David S.

2002-01-01

Recommends the use of concept mapping in science teaching and proposes that it be presented as a creative activity. Includes a sample lesson plan of a potato stamp concept mapping activity for astronomy. (DDR)

Concept Verification Test - Evaluation of Spacelab/Payload operation concepts

NASA Technical Reports Server (NTRS)

Mcbrayer, R. O.; Watters, H. H.

1977-01-01

The Concept Verification Test (CVT) procedure is used to study Spacelab operational concepts by conducting mission simulations in a General Purpose Laboratory (GPL) which represents a possible design of Spacelab. In conjunction with the laboratory a Mission Development Simulator, a Data Management System Simulator, a Spacelab Simulator, and Shuttle Interface Simulator have been designed. (The Spacelab Simulator is more functionally and physically representative of the Spacelab than the GPL.) Four simulations of Spacelab mission experimentation were performed, two involving several scientific disciplines, one involving life sciences, and the last involving material sciences. The purpose of the CVT project is to support the pre-design and development of payload carriers and payloads, and to coordinate hardware, software, and operational concepts of different developers and users.

Threshold Concepts in Biochemistry

ERIC Educational Resources Information Center

Loertscher, Jennifer

2011-01-01

Threshold concepts can be identified for any discipline and provide a framework for linking student learning to curricular design. Threshold concepts represent a transformed understanding of a discipline, without which the learner cannot progress and are therefore pivotal in learning in a discipline. Although threshold concepts have been…

Concepts in Change

NASA Astrophysics Data System (ADS)

Rusanen, Anna-Mari; Pöyhönen, Samuli

2013-06-01

In this article we focus on the concept of concept in conceptual change. We argue that (1) theories of higher learning must often employ two different notions of concept that should not be conflated: psychological and scientific concepts. The usages for these two notions are partly distinct and thus straightforward identification between them is unwarranted. Hence, the strong analogy between scientific theory change and individual learning should be approached with caution. In addition, we argue that (2) research in psychology and cognitive science provides a promising theoretical basis for developing explanatory mechanistic models of conceptual change. Moreover, we argue that (3) arguments against deeper integration between the fields of psychology and conceptual change are not convincing, and that recent theoretical developments in the cognitive sciences might prove indispensable in filling in the details in mechanisms of conceptual change.

Development of rotorcraft interior noise control concepts. Phase 3: Development of noise control concepts

NASA Technical Reports Server (NTRS)

Yoerkie, Charles A.; Gintoli, P. J.; Ingraham, S. T.; Moore, J. A.

1986-01-01

The goal of this research is the understanding of helicopter internal noise mechanisms and the development, design, and testing of noise control concepts which will produce significant reductions in the acoustic environment to which passengers are exposed. The Phase 3 effort involved the identification and evaluation of current and advanced treatment concepts, including isolation of structure-borne paths. In addition, a plan was devised for the full-scale evaluation of an isolation concept. Specific objectives were as follows: (1) identification and characterization of various noise control concepts; (2) implementation of noise control concepts within the S-76 SEA (statistical energy analysis) model; (3) definition and evaluation of a preliminary acoustic isolation design to reduce structure-borne transmission of acoustic frequency main gearbox gear clash vibrations into the airframe; (4) formulation of a plan for the full-scale validation of the isolation concept; and (5) prediction of the cabin noise environment with various noise control concepts installed.

Exploring alternative conceptions of teachers and informal educators about selected astronomy concepts

NASA Astrophysics Data System (ADS)

Rutherford, Lori B.

The purpose of this study was to (1) identify alternative conceptions concerning astronomy in groups of formal and informal educators, (2) discover the origins of some of these conceptions and (3) explore how practicing teachers planned to address the need for conceptual change in their students. In response to the first question, a number of alternative conceptions were identified in formal educators, with more for teachers of prekindergarten through third grade than fourth through twelfth grade teachers, and very few alternative conceptions in the informal educators group. In regards to the second research question, a number of origins were indicated: logic, books, elementary school, high school, astronomy classes, self-study and observation. In response to the third question, various practicing teachers used computer programs and modeling in order to address some of the alternative conceptions they noticed in their students. These findings were supported by the literature and theoretical frameworks on which the study was based. The study addressed gaps in the literature concerning alternative conceptions and how they related to Ohio's Academic Content Standards along with nineteen other states. This study also addressed the need for a closer examination of informal educators and how they compare to formal educators in terms of having alternative conceptions. And finally, implications and recommendations were made for practicing educators, materials for practicing educators, teacher education, informal and formal education partnerships, standards modification, research methodology and areas of future research.

Badminton--Teaching Concepts.

ERIC Educational Resources Information Center

Gibbs, Marilyn J.

1988-01-01

Teaching four basic badminton concepts along with the usual basic skill shots allows players to develop game strategy awareness as well as mechanical skills. These four basic concepts are: (1) ready position, (2) flight trajectory, (3) early shuttle contact, and (4) camouflage. (IAH)

The comparative effect of individually-generated vs. collaboratively-generated computer-based concept mapping on science concept learning

NASA Astrophysics Data System (ADS)

Kwon, So Young

Using a quasi-experimental design, the researcher investigated the comparative effects of individually-generated and collaboratively-generated computer-based concept mapping on middle school science concept learning. Qualitative data were analyzed to explain quantitative findings. One hundred sixty-one students (74 boys and 87 girls) in eight, seventh grade science classes at a middle school in Southeast Texas completed the entire study. Using prior science performance scores to assure equivalence of student achievement across groups, the researcher assigned the teacher's classes to one of the three experimental groups. The independent variable, group, consisted of three levels: 40 students in a control group, 59 students trained to individually generate concept maps on computers, and 62 students trained to collaboratively generate concept maps on computers. The dependent variables were science concept learning as demonstrated by comprehension test scores, and quality of concept maps created by students in experimental groups as demonstrated by rubric scores. Students in the experimental groups received concept mapping training and used their newly acquired concept mapping skills to individually or collaboratively construct computer-based concept maps during study time. The control group, the individually-generated concept mapping group, and the collaboratively-generated concept mapping group had equivalent learning experiences for 50 minutes during five days, excepting that students in a control group worked independently without concept mapping activities, students in the individual group worked individually to construct concept maps, and students in the collaborative group worked collaboratively to construct concept maps during their study time. Both collaboratively and individually generated computer-based concept mapping had a positive effect on seventh grade middle school science concept learning but neither strategy was more effective than the other. However

Selecting concepts for a concept-based curriculum: application of a benchmark approach.

PubMed

Giddens, Jean Foret; Wright, Mary; Gray, Irene

2012-09-01

In response to a transformational movement in nursing education, faculty across the country are considering changes to curricula and approaches to teaching. As a result, an emerging trend in many nursing programs is the adoption of a concept-based curriculum. As part of the curriculum development process, the selection of concepts, competencies, and exemplars on which to build courses and base content is needed. This article presents a benchmark approach used to validate and finalize concept selection among educators developing a concept-based curriculum for a statewide nursing consortium. These findings are intended to inform other nurse educators who are currently involved with or are considering this curriculum approach. Copyright 2012, SLACK Incorporated.

Language-Mediated Concept Learning.

ERIC Educational Resources Information Center

Follettie, Joseph F.

The conditions whereby a concept might be learned on the basis of a language mediation process prior to the inductive learning of subordinate concepts are sketched. The view is expressed that grammar treatments which are apt to primary education should be defined on the basis of a pedagogy's needs for linguistic characterizations of concepts to be…

Concepts in Activities and Discourses

ERIC Educational Resources Information Center

Greeno, James G.

2012-01-01

The articles in this special issue make valuable contributions toward a scientific understanding of concepts that is broader than the traditional view that has focused on categorizing by individuals. I propose considering concepts for categorization as a special case of concepts. At their clearest, they can be referred to as "formal concepts," or…

Learning Our Concepts

ERIC Educational Resources Information Center

Laverty, Megan J.

2009-01-01

Richard Stanley Peters appreciates the centrality of concepts for everyday life, however, he fails to recognize their pedagogical dimension. He distinguishes concepts employed at the first-order (our ordinary language-use) from second-order conceptual clarification (conducted exclusively by academically trained philosophers). This distinction…

Understanding network concepts in modules

PubMed Central

2007-01-01

Background Network concepts are increasingly used in biology and genetics. For example, the clustering coefficient has been used to understand network architecture; the connectivity (also known as degree) has been used to screen for cancer targets; and the topological overlap matrix has been used to define modules and to annotate genes. Dozens of potentially useful network concepts are known from graph theory. Results Here we study network concepts in special types of networks, which we refer to as approximately factorizable networks. In these networks, the pairwise connection strength (adjacency) between 2 network nodes can be factored into node specific contributions, named node 'conformity'. The node conformity turns out to be highly related to the connectivity. To provide a formalism for relating network concepts to each other, we define three types of network concepts: fundamental-, conformity-based-, and approximate conformity-based concepts. Fundamental concepts include the standard definitions of connectivity, density, centralization, heterogeneity, clustering coefficient, and topological overlap. The approximate conformity-based analogs of fundamental network concepts have several theoretical advantages. First, they allow one to derive simple relationships between seemingly disparate networks concepts. For example, we derive simple relationships between the clustering coefficient, the heterogeneity, the density, the centralization, and the topological overlap. The second advantage of approximate conformity-based network concepts is that they allow one to show that fundamental network concepts can be approximated by simple functions of the connectivity in module networks. Conclusion Using protein-protein interaction, gene co-expression, and simulated data, we show that a) many networks comprised of module nodes are approximately factorizable and b) in these types of networks, simple relationships exist between seemingly disparate network concepts. Our

[Concept analysis "Competency-based education"].

PubMed

Loosli, Clarence

2016-03-01

Competency-based education (CBE) stands out at global level as the best educational practice. Indeed, CBE is supposed to improve the quality of care provided by newly graduated nurses. Yet, there is a dearth of knowledge in nursing literature regarding CBE concept's definition. CBE is implemented differently in each entity even inside the same discipline in a single country. What accounts for CBE in nursing education ? to clarify CBE concept meaning according to literature review in order to propose a definition. Wilson concept analysis method framed our literature review through two databases: CINHAL and ERIC. following the 11 Wilson techniques analysis, we identified CBE concept as a multidimensional concept clustering three dimensions : learning, teaching and assessment. nurses educators are accountable for providing performants newly graduated professional to the society. Schools should struggle for the visibility and the transparency of means they are using to accomplish their educational activities. This first attempt to understand CBE concept opens a matter of debate concerning further development and clarification of the concept. This first description of CBE concept is a step toward its identification and assessment.

Children's Self-Concepts as Related to Family Structure and Family Concept.

ERIC Educational Resources Information Center

Parish, Joycelyn G.; Parish, Thomas S.

1983-01-01

Surveyed 426 children from intact, divorced, and reconstituted families, who responded to the Personal Attribute Inventory for Children to evaluate their families and themselves. Results showed a significant association between children's self-concepts and both their family structure and family concepts. (JAC)

A concept analysis of befriending.

PubMed

Balaam, Marie-Clare

2015-01-01

To report an analysis of the concept of befriending. Befriending is an intervention used in a range of nursing, health and social care settings to provide support for individuals who are socially isolated or lack social support. However, in many cases befriending and its impact remains poorly understood and under researched. Concept analysis provides clarification of the concept and basis for further research and development. Concept analysis. AMED, Psyc Articles, Psych Info, Medline, MedlinePlus, Social Science Index and CINHAL databases were searched for literature published between 1993-2013 using the search term Befriending. Walker and Avant's method of concept analysis was chosen. This combined with insights from Risjord's work produced a theoretical concept analysis which focused on the concept in peer reviewed academic literature. There are currently several ways the mechanisms of befriending and its effects on individuals and communities are understood. It is possible however to identify key attributes which define the concept and differentiate it from related concepts, such as peer support and mentoring. Key attributes are that it is an organised intervention, involving the creation of an emotionally connected friend-like relationship, where there is a negotiation of power. This concept analysis has clarified current understandings and uses of befriending. It provides the basis for widening the focus of research into the effectiveness and impact of befriending on those who are befriended, those who befriend and the communities where befriending takes place. © 2014 John Wiley & Sons Ltd.

Relating Complexity and Error Rates of Ontology Concepts. More Complex NCIt Concepts Have More Errors.

PubMed

Min, Hua; Zheng, Ling; Perl, Yehoshua; Halper, Michael; De Coronado, Sherri; Ochs, Christopher

2017-05-18

Ontologies are knowledge structures that lend support to many health-information systems. A study is carried out to assess the quality of ontological concepts based on a measure of their complexity. The results show a relation between complexity of concepts and error rates of concepts. A measure of lateral complexity defined as the number of exhibited role types is used to distinguish between more complex and simpler concepts. Using a framework called an area taxonomy, a kind of abstraction network that summarizes the structural organization of an ontology, concepts are divided into two groups along these lines. Various concepts from each group are then subjected to a two-phase QA analysis to uncover and verify errors and inconsistencies in their modeling. A hierarchy of the National Cancer Institute thesaurus (NCIt) is used as our test-bed. A hypothesis pertaining to the expected error rates of the complex and simple concepts is tested. Our study was done on the NCIt's Biological Process hierarchy. Various errors, including missing roles, incorrect role targets, and incorrectly assigned roles, were discovered and verified in the two phases of our QA analysis. The overall findings confirmed our hypothesis by showing a statistically significant difference between the amounts of errors exhibited by more laterally complex concepts vis-à-vis simpler concepts. QA is an essential part of any ontology's maintenance regimen. In this paper, we reported on the results of a QA study targeting two groups of ontology concepts distinguished by their level of complexity, defined in terms of the number of exhibited role types. The study was carried out on a major component of an important ontology, the NCIt. The findings suggest that more complex concepts tend to have a higher error rate than simpler concepts. These findings can be utilized to guide ongoing efforts in ontology QA.

The Effect of the Activities Enhanced Concerning Time Concept on Time Concept Acquisition of Children

ERIC Educational Resources Information Center

Birgül, Arzu Ergisi; Zeteroglu, Elvan Sahin; Derman, Meral Taner

2017-01-01

The aim of this study is to examine the effect of the activities enhanced concerning time concept on time concept acquisition of children. The research is a quantitative study in experimental model with pretest-posttest control group aiming to examine the effect of the activities enhanced concerning time concept on time concept acquisition of…

Troublesome Concepts and Information Literacy: Investigating Threshold Concepts for IL Instruction

ERIC Educational Resources Information Center

Hofer, Amy R.; Townsend, Lori; Brunetti, Korey

2012-01-01

Librarians regularly encounter students who struggle to understand and apply information literacy concepts. A qualitative survey administered to information literacy practitioners asked about troublesome content and analyzed results using the threshold concepts pedagogical framework first described by Jan Meyer and Ray Land. A threshold concept…

Self-care Concept Analysis in Cancer Patients: An Evolutionary Concept Analysis.

PubMed

Hasanpour-Dehkordi, Ali

2016-01-01

Self-care is a frequently used concept in both the theory and the clinical practice of nursing and is considered an element of nursing theory by Orem. The aim of this paper is to identify the core attributes of the self-care concept in cancer patients. We used Rodgers' evolutionary method of concept analysis. The articles published in English language from 1980 to 2015 on nursing and non-nursing disciplines were analyzed. Finally, 85 articles, an MSc thesis, and a PhD thesis were selected, examined, and analyzed in-depth. Two experts checked the process of analysis and monitored and reviewed the articles. The analysis showed that self-care concept is determined by four attributes of education, interaction, self-control, and self-reliance. Three types of antecedents in the present study were client-related (self-efficacy, self-esteem), system-related (adequate sources, social networks, and cultural factors), and healthcare professionals-related (participation). The self-care concept has considerably evolved among patients with chronic diseases, particularly cancer, over the past 35 years, and nurses have managed to enhance their knowledge about self-care remarkably for the clients so that the nurses in healthcare teams have become highly efficient and able to assume the responsibility for self-care teams.

Self-care Concept Analysis in Cancer Patients: An Evolutionary Concept Analysis

PubMed Central

Hasanpour-Dehkordi, Ali

2016-01-01

Background: Self-care is a frequently used concept in both the theory and the clinical practice of nursing and is considered an element of nursing theory by Orem. The aim of this paper is to identify the core attributes of the self-care concept in cancer patients. Materials and Methods: We used Rodgers’ evolutionary method of concept analysis. The articles published in English language from 1980 to 2015 on nursing and non-nursing disciplines were analyzed. Finally, 85 articles, an MSc thesis, and a PhD thesis were selected, examined, and analyzed in-depth. Two experts checked the process of analysis and monitored and reviewed the articles. Results: The analysis showed that self-care concept is determined by four attributes of education, interaction, self-control, and self-reliance. Three types of antecedents in the present study were client-related (self-efficacy, self-esteem), system-related (adequate sources, social networks, and cultural factors), and healthcare professionals-related (participation). Conclusion: The self-care concept has considerably evolved among patients with chronic diseases, particularly cancer, over the past 35 years, and nurses have managed to enhance their knowledge about self-care remarkably for the clients so that the nurses in healthcare teams have become highly efficient and able to assume the responsibility for self-care teams. PMID:27803559

Unifying the concept of consciousness across the disciplines: A concept-based, cross-cultural approach

NASA Astrophysics Data System (ADS)

Jones, Peter N.

The majority of studies concerning consciousness have examined and modeled the concept of consciousness in terms of particular lines of inquiry, a process that has circumscribed the general applicability of any results from such approaches. The purpose of this dissertation was to study consciousness from a concept-based, cross-cultural approach and to attempt to unify the concept across the cultures examined. The 4 cultures are the academic disciplines of philosophy, physics, psychology, and anthropology. Consciousness was examined in terms of how the concept is framed and where the major limitations in each line of inquiry occur. The rationale for examining consciousness as a concept across 4 cultures was to determine whether there was any common component in each line's framing that could be used to unify the concept. The study found that experience itself was the primary unifying factor in each field's framing and that experience was treated as a nonreducible property within each line of inquiry. By taking experience itself (but not subjective experience) as a fundamental property, each culture's concept of consciousness becomes tractable. As such, this dissertation argues that experience should be taken as a fundamental property of the concept. The significance of this analysis is that by taking experience as a fundamental property, it becomes possible to unify the concept across the 4 cultures. This unification is presented as a unity thesis, which is a theory arguing for unification of the concept based on the fundamental of experience. Following this theoretical examination, this paper discusses several key implications of the unity thesis, including implications of the unity thesis for the current status of altered states of consciousness and for the so-called hard and easy problems associated with the concept (at least within Occidental ontology). It is argued that the so-called hard problem does not exist when experience is taken as a fundamental property

Concept-Based Curricula: A National Study of Critical Concepts.

PubMed

Brussow, Jennifer A; Roberts, Karin; Scaruto, Matthew; Sommer, Sheryl; Mills, Christine

2018-02-22

As nursing education struggles to address a rapidly changing health care system, overcrowded curricula, and an increased focus on clinical reasoning skills, many programs have adopted or transitioned to concept-based curricula (CBCs), which are structured around key concepts and exemplars. Despite CBC's promised benefits, the process of developing a CBC framework may pose a challenge to programs. To address this barrier, a national study was conducted to develop a representative list of concepts and exemplars. This initiative expands on prior work by suggesting a leveled approach to positioning exemplars within a curricular sequence.This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

Enhancing Motivation and Acquisition of Coordinate Concepts by Using Concept Trees.

ERIC Educational Resources Information Center

Hirumi, Atsusi; Bowers, Dennis R.

1991-01-01

Examines the effects of providing undergraduate learners with graphic illustrations of coordinate concept relationships to supplement text-based instruction. Half of those reading a specific passage received a graphic concept tree. That group outperformed those who did not, reporting significantly higher amounts of attenuation, confidence, and…

Advanced Airspace Concept

NASA Technical Reports Server (NTRS)

Erzberger, Heinz

2002-01-01

A general overview of the Advanced Airspace Concept (AAC) is presented. The topics include: 1) Limitations of the existing system; 2) The Advanced Airspace Concept; 3) Candidate architecture for the AAC; 4) Separation assurance and conflict avoidance system (TSAFE); and 5) Ground-Air Interactions. This paper is in viewgraph form.

Clinical reasoning: concept analysis.

PubMed

Simmons, Barbara

2010-05-01

This paper is a report of a concept analysis of clinical reasoning in nursing. Clinical reasoning is an ambiguous term that is often used synonymously with decision-making and clinical judgment. Clinical reasoning has not been clearly defined in the literature. Healthcare settings are increasingly filled with uncertainty, risk and complexity due to increased patient acuity, multiple comorbidities, and enhanced use of technology, all of which require clinical reasoning. Data sources. Literature for this concept analysis was retrieved from several databases, including CINAHL, PubMed, PsycINFO, ERIC and OvidMEDLINE, for the years 1980 to 2008. Rodgers's evolutionary method of concept analysis was used because of its applicability to concepts that are still evolving. Multiple terms have been used synonymously to describe the thinking skills that nurses use. Research in the past 20 years has elucidated differences among these terms and identified the cognitive processes that precede judgment and decision-making. Our concept analysis defines one of these terms, 'clinical reasoning,' as a complex process that uses cognition, metacognition, and discipline-specific knowledge to gather and analyse patient information, evaluate its significance, and weigh alternative actions. This concept analysis provides a middle-range descriptive theory of clinical reasoning in nursing that helps clarify meaning and gives direction for future research. Appropriate instruments to operationalize the concept need to be developed. Research is needed to identify additional variables that have an impact on clinical reasoning and what are the consequences of clinical reasoning in specific situations.

Space vehicle concepts

NASA Technical Reports Server (NTRS)

Tucker, Michael; Meredith, Oliver; Brothers, Bobby

1986-01-01

Several concepts of chemical-propulsion Space Vehicles (SVs) for manned Mars landing missions are presented. For vehicle sizing purposes, several specific missions were chosen from opportunities in the late 1990's and early 2000's, and a vehicle system concept is then described which is applicable to the full range of missions and opportunities available. In general, missions utilizing planetary opposition alignments can be done with smaller vehicles than those utilizing planetary opposition alignments. The conjunction missions have a total mission time of about 3 years, including a required stay-time of about 60 days. Both types of missions might be desirable during a Mars program, the opposition type for early low-risk missions and/or for later unmanned cargo missions, and the conjunction type for more extensive science/exploration missions and/or for Mars base activities. Since the opposition missions appeared to drive the SV size more severely, there were probably more cases examined for them. Some of the concepts presented utilize all-propulsive braking, some utilize and all aerobraking approach, and some are hybrids. Weight statements are provided for various cases. Most of the work was done on 0-g vehicle concepts, but partial-g and 1-g concepts are also provided and discussed. Several options for habitable elements are shown, such as large-diameter modules and space station (SS) types of modules.

Deep first formal concept search.

PubMed

Zhang, Tao; Li, Hui; Hong, Wenxue; Yuan, Xiamei; Wei, Xinyu

2014-01-01

The calculation of formal concepts is a very important part in the theory of formal concept analysis (FCA); however, within the framework of FCA, computing all formal concepts is the main challenge because of its exponential complexity and difficulty in visualizing the calculating process. With the basic idea of Depth First Search, this paper presents a visualization algorithm by the attribute topology of formal context. Limited by the constraints and calculation rules, all concepts are achieved by the visualization global formal concepts searching, based on the topology degenerated with the fixed start and end points, without repetition and omission. This method makes the calculation of formal concepts precise and easy to operate and reflects the integrity of the algorithm, which enables it to be suitable for visualization analysis.

Lacking a Formal Concept of Limit: Advanced Non-Mathematics Students' Personal Concept Definitions

ERIC Educational Resources Information Center

Beynon, Kenneth A.; Zollman, Alan

2015-01-01

This mixed-methods study examines the conceptual understanding of limit among 22 undergraduate engineering students from two different sections of the same introductory differential equations course. The participants' concepts of limit (concept images and personal concept definitions) were examined using written tasks followed by one-on-one…

Concept Development and the Development of the God Concept in the Child: A Bibliography.

ERIC Educational Resources Information Center

Pitts, V. Peter, Comp.

This is a 600-reference bibliography on the development of children's conceptions and artistic representations of God. References are presented in 12 categories: (1) The God Concept, (2) Concept Development, (3) Child Development and Developmental Child Psychology, (4) Religious Education, (5) Children's Religious Thought and Development, (6)…

Social Science Concepts and the Classroom.

ERIC Educational Resources Information Center

Fancett, Verna S.; And Others

Intended to introduce teachers to the concept approach in teaching social studies materials, the five chapters of this publication discuss (1) a definition of "concept" and the term's relationship to facts and generalizations, (2) the function of concepts in the social sciences, (3) how concepts develop, (4) how concepts are related to inquiry and…

Flourishing: An Evolutionary Concept Analysis.

PubMed

Agenor, Christine; Conner, Norma; Aroian, Karen

2017-11-01

Mental health is an important measure of public health (WHO, 2004); however, nursing practice and research continues to prioritize mental illness, rather than well-being (Wand, 2011). Flourishing is a recent concept in the field of well-being. The term has been used sparingly in nursing practice and research, and conceptual clarification is needed to promote comprehensive understanding of the phenomenon. The purpose of this study is to critically analyze flourishing, assess the maturity of the concept, and provide recommendations for future research, education, and practice. The concept of flourishing was analyzed using the evolutionary approach to concept analysis (Rodgers, 2000). A search for articles on flourishing within the context of well-being was conducted through CINAHL, MEDLINE, and PsycINFO. A sample of 32 articles and 1 book was reviewed. Data were reviewed for concept attributes, antecedents, consequences, surrogate terms and related concepts. Four models of flourishing were identified with six overlapping attributes: meaning, positive relationships, engagement, competence, positive emotion, and self-esteem. Limited longitudinal and predictive studies have been conducted, but there is evidence for several antecedents and outcomes of flourishing. Research is ongoing primarily in psychology and sociology and is lacking in other disciplines. The concept of flourishing is immature; however, evidence is building for related concepts. A lack of consistent terminology regarding flourishing prevents knowledge development of flourishing as a distinct concept. Further multidisciplinary research is needed to establish standard operational and conceptual definitions and develop effective interventions.

Common tester platform concept.

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

Hurst, Michael James

This report summarizes the results of a case study on the doctrine of a common tester platform, a concept of a standardized platform that can be applicable across the broad spectrum of testing requirements throughout the various stages of a weapons program, as well as across the various weapons programs. The common tester concept strives to define an affordable, next-generation design that will meet testing requirements with the flexibility to grow and expand; supporting the initial development stages of a weapons program through to the final production and surveillance stages. This report discusses a concept investing key leveraging technologies andmore » operational concepts combined with prototype tester-development experiences and practical lessons learned gleaned from past weapons programs.« less

Advanced composites structural concepts and materials technologies for primary aircraft structures: Design/manufacturing concept assessment

NASA Technical Reports Server (NTRS)

Chu, Robert L.; Bayha, Tom D.; Davis, HU; Ingram, J. ED; Shukla, Jay G.

1992-01-01

Composite Wing and Fuselage Structural Design/Manufacturing Concepts have been developed and evaluated. Trade studies were performed to determine how well the concepts satisfy the program goals of 25 percent cost savings, 40 percent weight savings with aircraft resizing, and 50 percent part count reduction as compared to the aluminum Lockheed L-1011 baseline. The concepts developed using emerging technologies such as large scale resin transfer molding (RTM), automatic tow placed (ATP), braiding, out-of-autoclave and automated manufacturing processes for both thermoset and thermoplastic materials were evaluated for possible application in the design concepts. Trade studies were used to determine which concepts carry into the detailed design development subtask.

The Self Concept.

ERIC Educational Resources Information Center

Fitzgibbon, Ann

The purpose of this paper is to increase awareness of the self concept as a variable, to indicate what is known about the self concept from existing research, to discuss its importance to the school and its effect on learning, and to offer a method of assessment which is tied to a definition arbitrarily made as a starting point for researchers. A…

The Concept of Respite Care.

PubMed

Whitmore, Kim E

2017-07-01

The aim of this article is to analyze the concept of respite care in the context of caring for a child with special healthcare needs. Respite care has often been identified as an important resource for caregivers of children with special healthcare needs. It can help provide a break from the constant demands of caregiving. A concept analysis was conducted using an evolutionary approach. The data source for the concept analysis was a review of literature addressing respite care for caregivers of children with special healthcare needs. A review of the literature was conducted and a concept model was developed using an evolutionary approach. A theoretical definition of respite care is provided and the defining attributes, related concepts, antecedents, and consequences of respite care are shown in a diagram of the concept of respite care. The conceptual model provides a framework to help nurses better understand the concept of respite care in order to educate caregivers, provide appropriate referrals, serve as providers of respite care, and advocate for policy changes related to the provision of respite care services for caregivers of children with special healthcare needs. © 2016 Wiley Periodicals, Inc.

Critique of the Schema Concept.

ERIC Educational Resources Information Center

Dahlin, Bo

2001-01-01

Discusses the concept of schema and the role this concept plays in educational practice. Traces the historical development of the concept and how it came to be taken for granted that schemata exist. Suggests a return to a more phenomenological approach to learning and knowledge formation. (SLD)

The concept of medicalisation reassessed.

PubMed

Busfield, Joan

2017-06-01

Medicalisation has been an important concept in sociological discussions of medicine since its adoption by medical sociologists in the early 1970s. Yet it has been criticised by some sociologists, in part because it seems too negative about medicine, and modified or replaced by others with concepts deemed more relevant like biomedicalisation and pharmaceuticalisation. My aim in this paper is to reassess the concept and consider whether it still has value in exploring significant aspects of the role of medicine in present-day society. I start with an archaeology of the concept's development and the different ways it has been used. This covers some familiar ground but is essential to the main task: examining criticisms of the concept and assessing its value. I conclude that the concept continues to have a crucial and productive place in sociological analyses of medicine and that the process of medicalisation is still a key feature of late-modern social life and culture. © 2017 Foundation for the Sociology of Health & Illness.

Supersonic Retropropulsion Flight Test Concepts

NASA Technical Reports Server (NTRS)

Post, Ethan A.; Dupzyk, Ian C.; Korzun, Ashley M.; Dyakonov, Artem A.; Tanimoto, Rebekah L.; Edquist, Karl T.

2011-01-01

NASA's Exploration Technology Development and Demonstration Program has proposed plans for a series of three sub-scale flight tests at Earth for supersonic retropropulsion, a candidate decelerator technology for future, high-mass Mars missions. The first flight test in this series is intended to be a proof-of-concept test, demonstrating successful initiation and operation of supersonic retropropulsion at conditions that replicate the relevant physics of the aerodynamic-propulsive interactions expected in flight. Five sub-scale flight test article concepts, each designed for launch on sounding rockets, have been developed in consideration of this proof-of-concept flight test. Commercial, off-the-shelf components are utilized as much as possible in each concept. The design merits of the concepts are compared along with their predicted performance for a baseline trajectory. The results of a packaging study and performance-based trade studies indicate that a sounding rocket is a viable launch platform for this proof-of-concept test of supersonic retropropulsion.

Space Mission Operations Concept

NASA Technical Reports Server (NTRS)

Squibb, Gael F.

1996-01-01

This paper will discuss the concept of developing a space mission operations concept; the benefits of starting this system engineering task early; the neccessary inputs to the process; and the products that are generated.

Conceptions and Practices of Assessment: A Case of Teachers Representing Improvement Conception

ERIC Educational Resources Information Center

Azis, Astuti

2015-01-01

Despite numerous quantitative studies on teachers' conceptions and practices of assessment, little research exists regarding the unique assessment environment of Indonesia. This study uses both quantitative and qualitative data to examine how Indonesian junior high school teachers understand assessment and how their conceptions of assessment…

Can We Feel Physics Concepts?

ERIC Educational Resources Information Center

Su, Yucheng

2010-01-01

There are many ways to improve students' understanding of physics concepts. This article focused on drawing students' attention with picture-embedded questions. Pictures give students a direct impression or feeling about the corresponding concepts, which really makes a difference. However, the effects are limited. Some physics concepts are…

Values Concepts of Younger Children.

ERIC Educational Resources Information Center

Schuncke, George M.; Krogh, Suzanne L.

1982-01-01

The concepts of friendship, rules, property, obedience to authority, truth, promises, and sharing are appropriate for inclusion in values education materials for elementary students. Interviewers questioned 180 children in grades K-5 about their level of understanding of each concept and their perceptions of each concept's importance to their…

Concepts of Chinese Folk Happiness

ERIC Educational Resources Information Center

Ip, Po Keung

2011-01-01

Discourses on Chinese folk happiness are often based on anecdotal narratives or qualitative analysis. Two traditional concepts of happiness popular in Chinese culture are introduced. The paper constructs a concept of Chinese folk happiness on basis of the findings of a scientific survey on the Taiwanese people regarding their concepts of…

Concept Learning through Image Processing.

ERIC Educational Resources Information Center

Cifuentes, Lauren; Yi-Chuan, Jane Hsieh

This study explored computer-based image processing as a study strategy for middle school students' science concept learning. Specifically, the research examined the effects of computer graphics generation on science concept learning and the impact of using computer graphics to show interrelationships among concepts during study time. The 87…

Perceived parental efficacy: concept analysis.

PubMed

Montigny, Francine; Lacharité, Carl

2005-02-01

This paper describes a concept analysis carried out to remove some of the ambiguity surrounding the conceptual meaning of perceived parental efficacy and to distinguish it from related concepts such as parental confidence and parental competence. Constructing parental efficacy is a crucial step for family members after the birth of their first child. For some authors, perceived parental efficacy is a motor for adequate parental practices. Confusion about the definition and measurement of this concept has hindered both psychology and nursing practice and research. Concept delineation and concept clarification are required in order to further the development of the concept of perceived parental efficacy. A literature search using a variety of online databases yielded 113 articles between the years 1980 and 2000. The final sample (n=60) consisted of 30 articles from two disciplines: nursing and psychology. A content analysis of the literature was done using Rodger's evolutionary concept analysis method. Content analysis of the literature yielded four contributors to perceived parental efficacy: positive enactive mastery experiences, vicarious experiences, verbal persuasion and an appropriate physiological and affective state. Perceived parental efficacy can thus be defined as 'beliefs or judgements a parent holds of their capabilities to organize and execute a set of tasks related to parenting a child'. This conceptual analysis has allowed perceived parental efficacy to be distinguished from parental confidence and parental competence. Both nursing and psychology research, practice and education will benefit from a more precise and delineated concept.

How scientific concepts come to matter in early childhood curriculum: rethinking the concept of force

NASA Astrophysics Data System (ADS)

de Freitas, Elizabeth; Palmer, Anna

2016-12-01

The aim of this article is to investigate how new materialist philosophies of matter can help us study the emergence of scientific thought in young children's activities. We draw extensively on the work of Gilles Deleuze to help us understand scientific concepts as concrete universals. In particular, we show how the concept of force is re-animated through this approach, becoming less deterministic, and more inflected with chance and indeterminism. We show how this approach to concepts moves beyond constructivist socio-cultural theories of learning, and reveals how concepts are `material articulations of the world' intra-acting with all other matter and meaning. Finally, we discuss video data and artifacts from an ongoing ethnographic project in Stockholm entitled `Children's relations to the city'. Our analysis of the classroom video data from this project shows how concepts are not timeless transcendent abstractions, but part of an unfolding event and learning assemblage. Thus the article contributes to research on conceptual change in children, with particular focus on scientific concepts.

Study of Alternate Space Shuttle Concepts. Volume 2, Part 2: Concept Analysis and Definition

NASA Technical Reports Server (NTRS)

1971-01-01

This is the final report of a Phase A Study of Alternate Space Shuttle Concepts by the Lockheed Missiles & Space Company (LMSC) for the National Aeronautics and Space Administration George C. Marshall Space Flight Center (MSFC). The eleven-month study, which began on 30 June 1970, is to examine the stage-and-one-half and other Space Shuttle configurations and to establish feasibility, performance, cost, and schedules for the selected concepts. This final report consists of four volumes as follows: Volume I - Executive Summary, Volume II - Concept Analysis and Definition, Volume III - Program Planning, and Volume IV - Data Cost Data. This document is Volume II, Concept Analysis and Definition.

Harmony: a concept analysis.

PubMed

Easley, Robin

2007-09-01

This paper is a report of a concept analysis of harmony. Historically, harmony has been poorly defined in nursing research. Harmony has been typically associated with music, but this concept also has a place in nursing. The term is used in current literature in various contexts, including the environment, and relating to mind, body, and spirit. Use of the term harmony is also evident in describing physical characteristics and connections between subjects or ideas, and as an adjective. A literature search was conducted using the CINAHL, MEDLINE, PubMed, and OVID data bases from 1998 to 2003 with the keyword 'harmony'. The reference lists of the identified papers were then searched for further sources and 29 papers were identified for inclusion into the paper. Wilson's process was used to conduct the concept analysis. Harmony is a major aspect of personal relationships, working relationships, and nurse-patient relationships. Both patient-clinician and clinician-clinician relationships are affected by the three attributes of harmony: balance, peace and rhythm. This balance is also an important factor in the incidence of disease and for optimal health. Five consequences of the concept are identified as pleasant environment, sense of satisfaction, positive self-concept, beautiful sound, or effective programme. Harmony is potentially relevant to many aspects of nursing. In order for a nurse to have a positive relationship with a patient, harmony must be present in terms of a pleasant environment, feelings of satisfaction, positive self-concepts, and effective nursing intervention programmes.

Concept Analysis: Music Therapy.

PubMed

Murrock, Carolyn J; Bekhet, Abir K

2016-01-01

Down through the ages, music has been universally valued for its therapeutic properties based on the psychological and physiological responses in humans. However, the underlying mechanisms of the psychological and physiological responses to music have been poorly identified and defined. Without clarification, a concept can be misused, thereby diminishing its importance for application to nursing research and practice. The purpose of this article was for the clarification of the concept of music therapy based on Walker and Avant's concept analysis strategy. A review of recent nursing and health-related literature covering the years 2007-2014 was performed on the concepts of music, music therapy, preferred music, and individualized music. As a result of the search, the attributes, antecedents, and consequences of music therapy were identified, defined, and used to develop a conceptual model of music therapy. The conceptual model of music therapy provides direction for developing music interventions for nursing research and practice to be tested in various settings to improve various patient outcomes. Based on Walker and Avant's concept analysis strategy, model and contrary cases are included. Implications for future nursing research and practice to use the psychological and physiological responses to music therapy are discussed.

Teachers' Conceptions of Tangent Line

ERIC Educational Resources Information Center

Paez Murillo, Rosa Elvira; Vivier, Laurent

2013-01-01

In order to study the conceptions, and their evolutions, of the tangent line to a curve an updating workshop which took place in Mexico was designed for upper secondary school teachers. This workshop was planned using the methodology of cooperative learning, scientific debate and auto reflection (ACODESA) and the conception-knowing-concept model…

The Concept of Philosophical Education

ERIC Educational Resources Information Center

Boyum, Steinar

2010-01-01

Strangely, the concept of philosophical education is not much in use, at least not as a "philosophical" concept. In this essay, Steinar Boyum attempts to outline such a philosophical concept of philosophical education. Boyum uses Plato's Allegory of the Cave, Rene Descartes's life of doubt, and Immanuel Kant's criticism of metaphysics as paradigms…

Concept Mapping: A Critical Thinking Technique

ERIC Educational Resources Information Center

Harris, Charles M.; Zha, Shenghua

2013-01-01

Concept mapping, graphically depicting the structure of abstract concepts, is based on the observation that pictures and line drawings are often more easily comprehended than the words that represent an abstract concept. The efficacy of concept mapping for facilitating critical thinking was assessed in four sections of an introductory psychology…

Family Relationships and Adolescent Self-Concept.

ERIC Educational Resources Information Center

Massey, Catherine J.

Previous research relating the quality of the relationship with the mother, father, and sibling to adolescent self-concept only investigated social and general self-concept and not various social and cognitive dimensions of self-concept. This study investigated family relationships and their link to the several domains of self-concept.…

Drawings as Representations of Children's Conceptions

ERIC Educational Resources Information Center

Ehrlen, Karin

2009-01-01

Drawings are often used to obtain an idea of children's conceptions. Doing so takes for granted an unambiguous relation between conceptions and their representations in drawings. This study was undertaken to gain knowledge of the relation between children's conceptions and their representation of these conceptions in drawings. A theory of…

Early-Years Teachers' Concept Images and Concept Definitions: Triangles, Circles, and Cylinders

ERIC Educational Resources Information Center

Tsamir, Pessia; Tirosh, Dina; Levenson, Esther; Barkai, Ruthi; Tabach, Michal

2015-01-01

This study investigates practicing early-years teachers' concept images and concept definitions for triangles, circles, and cylinders. Teachers were requested to define each figure and then to identify various examples and non-examples of the figure. Teachers' use of correct and precise mathematical language and reference to critical and…

Increasing Self Concept: An Educational Perspective.

ERIC Educational Resources Information Center

Fuller, Mary Lou

1984-01-01

This monograph is designed to help educators develop a better understanding of children's self-concept, the effects of children's self-concept on their school experience, and ways educators can have a positive effect on self-concept. The first section defines self-concept and presents two case studies; the second discusses factors influencing the…

Brain Representations of Basic Physics Concepts

NASA Astrophysics Data System (ADS)

Just, Marcel Adam

2017-09-01

The findings concerning physics concepts build on the remarkable new ability to determine the neural signature (or activation pattern) corresponding to an individual concept using fMRI brain imaging. Moreover, the neural signatures can be decomposed into meaningful underlying dimensions, identifying the individual, interpretable components of the neural representation of a concept. The investigation of physics concepts representations reveals how relatively recent physics concepts (formalized only in the last few centuries) are stored in the millenia-old information system of the human brain.

Spatial Modernist Architectural Artistic Concepts

NASA Astrophysics Data System (ADS)

Gudkova, T. V.; Gudkov, A. A.

2017-11-01

The development of a single spatial modernist conception had continued until the middle of the twentieth century. The first authors who proposed the new conceptual solutions of an architectural space that had the greatest impact on the further development of architecture were Le Corbusier, Frank Lloyd Wright, Mies van der Rohein. They embodied different approaches within the common modernist spatial concept using the language of morphological, symbolic and phenomenological descriptions of space. The concept was based on the simplification of functional links, integration of internal architectural space with the environment due to the vanishing of boundaries between them and expansion of their interrelation. Le Corbusier proposed a spatio-temporal concept based on the movement and tempo-rhythmics of the space “from inside to outside.” Frank Lloyd Wright proposed the concept of integral space where inner and outer spaces were the parts of a whole. Mies van der Rohein was the author of the universal space concept in which the idea of the “dissolution” of the inner space in the outer space was embodied.

MSFC Advanced Concepts Office and the Iterative Launch Vehicle Concept Method

NASA Technical Reports Server (NTRS)

Creech, Dennis

2011-01-01

This slide presentation reviews the work of the Advanced Concepts Office (ACO) at Marshall Space Flight Center (MSFC) with particular emphasis on the method used to model launch vehicles using INTegrated ROcket Sizing (INTROS), a modeling system that assists in establishing the launch concept design, and stage sizing, and facilitates the integration of exterior analytic efforts, vehicle architecture studies, and technology and system trades and parameter sensitivities.

A concept analysis of forensic risk.

PubMed

Kettles, A M

2004-08-01

Forensic risk is a term used in relation to many forms of clinical practice, such as assessment, intervention and management. Rarely is the term defined in the literature and as a concept it is multifaceted. Concept analysis is a method for exploring and evaluating the meaning of words. It gives precise definitions, both theoretical and operational, for use in theory, clinical practice and research. A concept analysis provides a logical basis for defining terms through providing defining attributes, case examples (model, contrary, borderline, related), antecedents and consequences and the implications for nursing. Concept analysis helps us to refine and define a concept that derives from practice, research or theory. This paper will use the strategy of concept analysis to find a working definition for the concept of forensic risk. In conclusion, the historical background and literature are reviewed using concept analysis to bring the term into focus and to define it more clearly. Forensic risk is found to derive both from forensic practice and from risk theory. A proposed definition of forensic risk is given.

Tree Decay - An Expanded Concept

Treesearch

Alex L. Shigo

1979-01-01

The purpose of this publication is to clarify further the tree decay concept that expands the classical concept to include the orderly response of the tree to wounding and infection-compartmentalization-and the orderly infection of wounds by many microorganisms-successions. The heartrot concept must be abandoned because it deals only with decay-causing fungi and it...

Towards a better use of psychoanalytic concepts: a model illustrated using the concept of enactment.

PubMed

Bohleber, Werner; Fonagy, Peter; Jiménez, Juan Pablo; Scarfone, Dominique; Varvin, Sverre; Zysman, Samuel

2013-06-01

It is well known that there is a lack of consensus about how to decide between competing and sometimes mutually contradictory theories, and how to integrate divergent concepts and theories. In view of this situation the IPA Project Committee on Conceptual Integration developed a method that allows comparison between different versions of concepts, their underlying theories and basic assumptions. Only when placed in a frame of reference can similarities and differences be seen in a methodically comprehensible and reproducible way. We used "enactment" to study the problems of comparing concepts systematically. Almost all psychoanalytic schools have developed a conceptualization of it. We made a sort of provisional canon of relevant papers we have chosen from the different schools. The five steps of our method for analyzing the concept of enactment will be presented. The first step is the history of the concept; the second the phenomenology; the third a methodological analysis of the construction of the concept. In order to compare different conceptualizations we must know the main dimensions of the meaning space of the concept, this is the fourth step. Finally, in step five we discuss if and to what extent an integration of the different versions of enactment is possible. Copyright © 2013 Institute of Psychoanalysis.

THE THEME-CONCEPT UNIT IN LITERATURE.

ERIC Educational Resources Information Center

HILLOCKS, GEORGE, JR.

A SUGGESTED UNIT FRAMEWORK WAS DEVELOPED AS A METHOD OF TEACHING SEVENTH-GRADE LITERATURE AT EUCLID CENTRAL JUNIOR HIGH SCHOOL IN EUCLID, OHIO. THE UNIT WAS DIVIDED INTO SIX MAJOR SECTIONS--(1) DEVELOPMENT OF THE CONCEPT, (2) APPLICATION OF THE CONCEPT UNDER THE GUIDANCE OF A TEACHER, (3) REVISION OF THE CONCEPT, (4) APPLICATION OF THE CONCEPT BY…

[Clinical reasoning in nursing, concept analysis].

PubMed

Côté, Sarah; St-Cyr Tribble, Denise

2012-12-01

Nurses work in situations of complex care requiring great clinical reasoning abilities. In literature, clinical reasoning is often confused with other concepts and it has no consensual definition. To conduct a concept analysis of a nurse's clinical reasoning in order to clarify, define and distinguish it from the other concepts as well as to better understand clinical reasoning. Rodgers's method of concept analysis was used, after literature was retrieved with the use of clinical reasoning, concept analysis, nurse, intensive care and decision making as key-words. The use of cognition, cognitive strategies, a systematic approach of analysis and data interpretation, generating hypothesis and alternatives are attributes of clinical reasoning. The antecedents are experience, knowledge, memory, cues, intuition and data collection. The consequences are decision making, action, clues and problem resolution. This concept analysis helped to define clinical reasoning, to distinguish it from other concepts used synonymously and to guide future research.

The semantic richness of abstract concepts

PubMed Central

Recchia, Gabriel; Jones, Michael N.

2012-01-01

We contrasted the predictive power of three measures of semantic richness—number of features (NFs), contextual dispersion (CD), and a novel measure of number of semantic neighbors (NSN)—for a large set of concrete and abstract concepts on lexical decision and naming tasks. NSN (but not NF) facilitated processing for abstract concepts, while NF (but not NSN) facilitated processing for the most concrete concepts, consistent with claims that linguistic information is more relevant for abstract concepts in early processing. Additionally, converging evidence from two datasets suggests that when NSN and CD are controlled for, the features that most facilitate processing are those associated with a concept's physical characteristics and real-world contexts. These results suggest that rich linguistic contexts (many semantic neighbors) facilitate early activation of abstract concepts, whereas concrete concepts benefit more from rich physical contexts (many associated objects and locations). PMID:23205008

Systems evaluation of thermal bus concepts

NASA Technical Reports Server (NTRS)

Stalmach, D. D.

1982-01-01

Thermal bus concepts, to provide a centralized thermal utility for large, multihundred kilowatt space platforms, were studied and the results are summarized. Concepts were generated, defined, and screened for inclusion in system level thermal bus trades. Parametric trade studies were conducted in order to define the operational envelope, performance, and physical characteristics of each. Two concepts were selected as offering the most promise for thermal bus development. All of four concepts involved two phase flow in order to meet the required isothermal nature of the thermal bus. Two of the concepts employ a mechanical means to circulate the working fluid, a liquid pump in one case and a vapor compressor in another. Another concept utilizes direct osmosis as the driving force of the thermal bus. The fourth concept was a high capacity monogroove heat pipe. After preliminary sizing and screening, three of these concepts were selected to carry into the trade studies. The monogroove heat pipe concept was deemed unsuitable for further consideration because of its heat transport limitations. One additional concept utilizing capillary forces to drive the working fluid was added. Parametric system level trade studies were performed. Sizing and weight calculations were performed for thermal bus sizes ranging from 5 to 350 kW and operating temperatures in the range of 4 to 120 C. System level considerations such as heat rejection and electrical power penalties and interface temperature losses were included in the weight calculations.

Self-concept of children with cerebral palsy measured using the population-specific myTREEHOUSE Self-Concept Assessment.

PubMed

Cheong, Sau Kuan; Lang, Cathryne P; Johnston, Leanne M

2018-02-01

Self-concept is an individual's perception of him/herself. Research into the self-concept of children with cerebral palsy (CP) has been sparse due to the lack of a population-specific self-concept instrument. Using the new myTREEHOUSE Self-Concept Assessment, this study investigated the self-concept of children with CP in relation to age, gender, motor, communication and cognitive function. Children with CP aged 8-12 years (n = 50; 29 males; mean 10 years 2 months; GMFCS-E&R I = 36, II = 8, III = 5, IV = 1) completed myTREEHOUSE and a standardised intelligence measure. Most children reported positive self-concept from all three myTREEHOUSE Performance Perspectives and over half (60%) fell within the Low range for the Personal Concern Score. Self-concept was not associated with age, gender, motor function, or communication function. However, for cognitive function, associations were observed for Social Skills (Below Average > Average cognitive function; Cohen's d = 1.07) and Learning Skills (Above Average > Average cognitive function; Cohen's d = 0.95) domains when rated from a Personal Performance Perspective. As the first study of the self-concept of children with CP using a CP-specific assessment, this study offers important insights into what children with CP think about themselves. Generally, the self-concept of children with CP was sound. Future research on environmental facilitators and barriers to robust self-concept development is recommended. Copyright © 2017 Elsevier Ltd. All rights reserved.

Spiritual Health: A Concept Analysis.

PubMed

Jaberi, Azita; Momennasab, Marzieh; Yektatalab, Shahrzad; Ebadi, Abbas; Cheraghi, Mohammad Ali

2017-03-10

Spiritual health has attracted a lot of attention in health-related and nursing sciences and numerous researches. Yet, this concept has remained complex and ambiguous, and there is no consensus in this regard. This ambiguity can be challenging for holistic nursing; therefore, clarification of the concept is required for development of nursing knowledge. The present study aimed to explore the concept of spiritual health in health-related and nursing literature. Walker and Avant (Strategies for theory construction in nursing, Appleton & Lange, Norwalk, 1995) concept analysis method was used in this study. The results were categorized as antecedents, attributes, and outcomes of spiritual health. The critical attributes extracted for spiritual health included transcendence, purposefulness and meaningfulness, faithfulness, harmonious interconnectedness, integrative power, multidimensionality, and holistic being. Besides, the antecedents of spiritual health included capability and potentiality for transcendence, and spiritual awareness. Finally, well-being and moral development were the outcomes of spiritual health. Spiritual health is one of the basic aspects of health and providing a clear theoretical definition can result in a common understanding of this concept for nurses. Clarifying this concept would also be useful for provision of spiritual care interventions and development of nursing theories.

The concept of collaborative health.

PubMed

Sandberg, Håkan

2010-11-01

Based on empirical research about teamwork in human service organizations in Sweden, the concept of collaborative health (CH) encapsulates the physical, psychological and social health resources the individual uses in teamwork; resources which at the same time are influenced by the teamwork. My argument built on empirical research leading up to identifying and defining the core concept in this article, is that teamwork affects team members' health and this in turn affects the teamwork and its outcome. In this paper collaborative health is viewed from a social constructionism perspective and discussed in relation to earlier concepts developed in social psychology and working life research, including psychosocial stress and burnout. The paper also introduces the concept of functional synergy, which in this context is defined as the simultaneous presence of sharp goal-orientation and synergy in teamwork. The need for a holistic team theory is emphasized as a tool in research on teamwork. Such a theory relies on identifying sound and illuminating constituent concepts. I suggest that collaborative health could be a useful concept for better understanding the complex collaborative and co-operative teamwork of human service organizations of today.

Transition: Terms and Concepts.

ERIC Educational Resources Information Center

O'Leary, Ed

This paper provides explanations and case examples of some terms and concepts related to transition of students with disabilities under 1997 amendments to the Individuals with Disabilities Education Act. Explanations and examples focus on the concepts of "statement of transition service needs" and "statement of needed transition…

Marned Orbital Systems Concept

NASA Technical Reports Server (NTRS)

1975-01-01

Despite the indefinite postponement of the Space Station in 1972, Marshall Space Flight Center (MSFC) continued to look to the future for some type of orbital facility during the post-Skylab years. In 1975, the MSFC directed a contract with the McDonnel Douglas Aerospace Company for the Manned Orbital Systems Concept (MOSC) study. This 9-month effort examined the requirements for, and defined a cost-effective orbital facility concept capable of, supporting extended manned missions in Earth orbit. The capabilities of this concept exceeded those envisioned for the Space Shuttle and Spacelab, both of which were limited by a 7 to 30-day orbital time constraint. The MOSC's initial operating capability was to be achieved in late 1984. A crew of four would man a four-module configuration. During its five-year orbital life the MOSC would have the capability to evolve into a larger 12-to-24-man facility. This is an artist's concept of MOSC.

[Self esteem : concept analysis.

PubMed

Doré, Christina

2017-06-01

Self-esteem is an inner attitude at the base of the construction of personality and psychic balance in addition to be responsible of adaptive processes over the course of life. The concept of self-esteem is commonly used in several disciplines however, it seems that the consensus on its conceptualization and its operationalization is not yet reached. In this context, the concept analysis allows to address a phenomenon and to understand its use and its evolution from a unique disciplinary perspective. The aim of this article is therefore to analyze the concept of self esteem from a nursing perspective to identify : definitions of the term and related terms, attributes, model and limit cases proposed here within the community of mental health nurses, antecedents and consequents as well as the empirical references using the Walker and Avant method. The attributes identified allowing a deeper understanding of the concept are : the self-value, the self-acceptance, the self-efficacy, attitude towards oneself and finally, self-respect.

Concept Mapping: A Graphical System for Understanding the Relationship between Concepts. ERIC Digest.

ERIC Educational Resources Information Center

Plotnick, Eric

This ERIC Digest discusses concept mapping, a technique for representing the structure of information visually. Concept mapping can be used to brainstorm, design complex structures, communicate complex ideas, aid learning by explicitly integrating new and old knowledge, and assess understanding or diagnose misunderstanding. Visual representation…

The complex patient: A concept clarification.

PubMed

Manning, Eli; Gagnon, Marilou

2017-03-01

Over the last decade, the concept of the "complex patient" has not only been more widely used in multidisciplinary healthcare teams and across various healthcare disciplines, but it has also become more vacuous in meaning. The uptake of the concept of the "complex patient" spans across disciplines, such as medicine, nursing, and social work, with no consistent definition. We review the chronological evolution of this concept and its surrogate terms, namely "comorbidity," "multimorbidity," "polypathology," "dual diagnosis," and "multiple chronic conditions." Drawing on key principles of concept clarification, we highlight disciplinary usage in the literature published between 2005 and 2015 in health sciences, attending to overlaps and revealing nuances of the complex patient concept. Finally, we discuss the implications of this concept for practice, research, and theory. © 2017 John Wiley & Sons Australia, Ltd.

Social Accountable Medical Education: A concept analysis.

PubMed

Abdolmaleki, Mohammadreza; Yazdani, Shahram; Momeni, Sedigheh; Momtazmanesh, Nader

2017-07-01

Considering the pervasiveness of social accountable medical education concept around the world and the growing trend of literature in this regard as well as various interpretations made about this concept, we found it necessary to analyze the concept of social accountable medical education. In this study, the modified version of McKenna's approach to concept analysis was used to determine the concept, explain structures and substructures and determine the border concepts neighboring and against social accountability in medical education. By studying the selected sources,the components of the concept were obtained to identify it and express an analytic definition of social accountability in medical education system. Then, a model case with all attributes of the given concept and the contrary and related concepts were mentioned to determine the boundary between the main concept and auxiliary ones. According to the results of this study in the field of social accountability, the detailed and transparent analytical definition of social accountable medical education can be used in future studies as well as the function and evaluation of medical education system.

Integrating Concept Mapping and the Learning Cycle To Teach Diffusion and Osmosis Concepts to High School Biology Students.

ERIC Educational Resources Information Center

Odom, Arthur L.; Kelly, Paul V.

2001-01-01

Explores the effectiveness of concept mapping, the learning cycle, expository instruction, and a combination of concept mapping/learning cycle in promoting conceptual understanding of diffusion and osmosis. Concludes that the concept mapping/learning cycle and concept mapping treatment groups significantly outperformed the expository treatment…

Resilient ageing: a concept analysis.

PubMed

Hicks, Maxine M; Conner, Norma E

2014-04-01

This paper is a report of an analysis of the concept resilient ageing. Unique in comparison with other healthy ageing concepts, resilient ageing can be applied to all older people, regardless of age or affliction. The state of global population expansion in older people over the next 50 years calls for increased health promotion research efforts to ensure the maintenance of health and optimal quality of life for all older people. Literature for this concept analysis was retrieved from several databases, CINAHL, PubMed PsycINFO, for the years 1990-2012. Rodgers's evolutionary method of concept analysis was used because of its applicability to concepts that are still evolving. An integrative research review methodology was applied to peer-reviewed journal articles (n = 46) for an inductive analysis of the concept of resilient ageing. The antecedents, defining attributes, and consequence of resilient ageing were identified. Antecedents to resilient ageing were found to be adversity and protective factors, while the core attributes include coping, hardiness and self-concept. The consequence of the process of resilient ageing was optimal quality of life. Sense of coherence was found to be the surrogate term. The results obtained were further substantiated using Antonovsky's (1979) theory of salutogenesis. A theoretical definition and a model of resilient ageing were developed. In addition, a discussion was provided on the practice, policy and research implications for promoting the development of protective factors and resilient ageing. © 2013 John Wiley & Sons Ltd.

Suicide Lethality: A Concept Analysis.

PubMed

DeBastiani, Summer; De Santis, Joseph P

2018-02-01

Suicide is a significant health problem internationally. Those who complete suicide may have different behaviors and risk factors than those who attempt a non-fatal suicide. The purpose of this article is to analyze the concept of suicide lethality and propose a clear definition of the concept through the identification of antecedents, attributes, and consequences. A literature search for articles published in the English language between 1970 and 2016 was conducted using MEDLINE, the Cochrane Library, Pubmed, Psychlit, Ovid, PsycINFO, and Proquest. The bibliographies of all included studies were also reviewed to identify additional relevant citations. A concept analysis was conducted on the literature findings using six stages of Walker and Avant's method. The concept analysis differentiated between suicide, lethality, suicidal behavior, and suicide lethality. Presence of a suicide plan or a written suicide note was not found to be associated with the majority of completed suicides included in the definition of suicide lethality. There are a few scales that measure the lethality of a suicide attempt, but none that attempt to measure the concept of suicide lethality as described in this analysis. Clarifying the concept of suicide lethality encourages awareness of the possibility of different suicidal behaviors associated with different suicide outcomes and will inform the development of future nursing interventions. A clearer definition of the concept of suicide lethality will guide clinical practice, research, and policy development aimed at suicide prevention.

Time Concepts for Elementary School Children.

ERIC Educational Resources Information Center

Muir, Sharon Pray

1990-01-01

Points out that children have difficulty learning time concepts. Presents instructional activities for concepts associated with clocks, calendars, and chronology. Outlines Jerome Bruner's three different stages of representation for each concept: enactive, iconic, and symbolic. (DB)

The ontic conception of scientific explanation.

PubMed

Wright, Cory

2015-12-01

Wesley Salmon's version of the ontic conception of explanation is a main historical root of contemporary work on mechanistic explanation. This paper examines and critiques the philosophical merits of Salmon's version, and argues that his conception's most fundamental construct is either fundamentally obscure, or else reduces to a non-ontic conception of explanation. Either way, the ontic conception is a misconception. Copyright © 2015 Elsevier Ltd. All rights reserved.

A Reciprocal Effects Model of Children's Body Fat Self-Concept: Relations With Physical Self-Concept and Physical Activity.

PubMed

Garn, Alex C; Morin, Alexandre J S; Martin, Jeffrey; Centeio, Erin; Shen, Bo; Kulik, Noel; Somers, Cheryl; McCaughtry, Nate

2016-06-01

This study investigated a reciprocal effects model (REM) of children's body fat self-concept and physical self-concept, and objectively measured school physical activity at different intensities. Grade four students (N = 376; M age = 9.07, SD = .61; 55% boys) from the midwest region of the United States completed measures of physical self-concept and body fat self-concept, and wore accelerometers for three consecutive school days at the beginning and end of one school year. Findings from structural equation modeling analyses did not support reciprocal effects. However, children's body fat self-concept predicted future physical self-concept and moderate-to-vigorous physical activity (MVPA). Multigroup analyses explored the moderating role of weight status, sex, ethnicity, and sex*ethnicity within the REM. Findings supported invariance, suggesting that the observed relations were generalizable for these children across demographic groups. Links between body fat self-concept and future physical self-concept and MVPA highlight self-enhancing effects that can promote children's health and well-being.

Perception: a concept analysis.

PubMed

McDonald, Susan M

2012-02-01

Concept analysis methodology by Walker and Avant (2005) was used to define, describe, and delimit the concept of perception. Nursing literature in the Medline database was searched for definitions of "perception." Definitions, uses, and defining attributes of perception were identified; model and contrary cases were developed; and antecedents, consequences, and empirical referents were determined. An operational definition for the concept was developed. Nurses need to be cognizant of how perceptual differences impact the delivery of nursing care. In research, a mixed methodology approach may yield a richer description of the phenomenon and provide useful information for clinical practice. © 2011, The Author. International Journal of Nursing Knowledge © 2011, NANDA International.

[Concepts of rational taxonomy].

PubMed

Pavlinov, I Ia

2011-01-01

The problems are discussed related to development of concepts of rational taxonomy and rational classifications (taxonomic systems) in biology. Rational taxonomy is based on the assumption that the key characteristic of rationality is deductive inference of certain partial judgments about reality under study from other judgments taken as more general and a priory true. Respectively, two forms of rationality are discriminated--ontological and epistemological ones. The former implies inference of classifications properties from general (essential) properties of the reality being investigated. The latter implies inference of the partial rules of judgments about classifications from more general (formal) rules. The following principal concepts of ontologically rational biological taxonomy are considered: "crystallographic" approach, inference of the orderliness of organismal diversity from general laws of Nature, inference of the above orderliness from the orderliness of ontogenetic development programs, based on the concept of natural kind and Cassirer's series theory, based on the systemic concept, based on the idea of periodic systems. Various concepts of ontologically rational taxonomy can be generalized by an idea of the causal taxonomy, according to which any biologically sound classification is founded on a contentwise model of biological diversity that includes explicit indication of general causes responsible for that diversity. It is asserted that each category of general causation and respective background model may serve as a basis for a particular ontologically rational taxonomy as a distinctive research program. Concepts of epistemologically rational taxonomy and classifications (taxonomic systems) can be interpreted in terms of application of certain epistemological criteria of substantiation of scientific status of taxonomy in general and of taxonomic systems in particular. These concepts include: consideration of taxonomy consistency from the

Alternative Conceptions: Turning Adversity into Advantage

NASA Astrophysics Data System (ADS)

Ferreira, Annalize; Lemmer, Miriam; Gunstone, Richard

2017-08-01

While a vast body of research has identified difficulties in students' understanding about forces and acceleration and their related alternative conceptions, far less research suggests ways to use students' alternative conceptions to enhance conceptual understanding of a specific fundamental concept. This study focused on distinguishing between students' conceptual understanding of the Newtonian concept of gravitational acceleration being the same for all objects and students' alternative conception that heavy objects fall faster. A multiple choice questionnaire was distributed to first year physics students for three consecutive years at a university in South Africa. The results indicate that changing the direction of motion and the physics quantity asked in paired questions revealed practically significant inconsistencies in students' reasoning and conceptions. This research contributes to the body of knowledge in proposing how the alternative conception of mass-related gravitational acceleration can be used in instruction to enhance conceptual understanding of the force-mass-acceleration relationship. Understanding of this relationship not only promotes conceptual understanding of the basic Newtonian concepts of the laws of motion which forms the critical foundation on which more advanced physics courses are built, but also contributes towards students' perception of physics as a set of coherent ideas applicable in all contexts.

NASA's Gravitational-Wave Mission Concept Study

NASA Technical Reports Server (NTRS)

Stebbins, Robin

2012-01-01

With the conclusion of the NASA/ESA partnership on the Laser interferometer Space Antenna (LISA) Project, NASA initiated a study to explore mission concepts that will accomplish some or all of the LISA science objectives at lower cost. The Gravitational-Wave Mission Concept Study consists of a public Request for Information (RFI), a Core Team of NASA engineers and scientists, a Community Science Team, a Science Task Force, and an open workshop. The RFI yielded 12 mission concepts, 3 instrument concepts and 2 technologies. The responses ranged from concepts that eliminated the drag-free test mass of LISA to concepts that replace the test mass with an atom interferometer. The Core Team reviewed the noise budgets and sensitivity curves, the payload and spacecraft designs and requirements, orbits and trajectories and technical readiness and risk. The Science Task Force assessed the science performance. Three mission concepts have been studied by Team-X, JPL's concurrent design facility, to refine the conceptual design, evaluate key performance parameters, assess risk and estimate cost and schedule. The status of the Study are reported.

Health: A Developing Concept in Nursing.

PubMed

Alslman, Eman Tariq; Ahmad, Muayyad M; Bani Hani, Manar Ali; Atiyeh, Huda Mohammad

2017-04-01

The purpose of this paper is to evaluate the level of maturity of the concept of health in the nursing discipline. The four principles of Morse and colleagues were used to evaluate the level of maturity of the health concept-epistemological, logical, pragmatical, and linguistical. This evaluation suggests that the concept of health in nursing is immature, defined inconsistently, and with different instruments. Health is a central concept for nursing. Additional concept development and clarification are needed. For the concept of health to be conceptualized, it is important that nurses have consensus regarding the definition of health. The nursing discipline should define health in a manner that is consistent with its philosophical presuppositions. Further, it should be measurable, empirically based, and capture the outcomes that are sensitive to the nursing interventions. © 2015 NANDA International, Inc.

Concept Model on Topological Learning

NASA Astrophysics Data System (ADS)

Ae, Tadashi; Kioi, Kazumasa

2010-11-01

We discuss a new model for concept based on topological learning, where the learning process on the neural network is represented by mathematical topology. The topological learning of neural networks is summarized by a quotient of input space and the hierarchical step induces a tree where each node corresponds to a quotient. In general, the concept acquisition is a difficult problem, but the emotion for a subject is represented by providing the questions to a person. Therefore, a kind of concept is captured by such data and the answer sheet can be mapped into a topology consisting of trees. In this paper, we will discuss a way of mapping the emotional concept to a topological learning model.

Changing Concepts in Forensics.

ERIC Educational Resources Information Center

Zarefsky, David

This paper discusses five theoretical concepts in general and two theoretical models in particular that are involved in forensics. The five concepts are: (1) causation, an inquiry into the reasons for ongoing processes or problems; (2) inherency, the division of a universe into its necessary features and its accidental features; (3) presumption, a…

Threshold Concepts in Economics

ERIC Educational Resources Information Center

Shanahan, Martin

2016-01-01

Purpose: The purpose of this paper is to examine threshold concepts in the context of teaching and learning first-year university economics. It outlines some of the arguments for using threshold concepts and provides examples using opportunity cost as an exemplar in economics. Design/ Methodology/Approach: The paper provides an overview of the…

Social Accountable Medical Education: A concept analysis

PubMed Central

ABDOLMALEKI, MOHAMMADREZA; YAZDANI, SHAHRAM; MOMENI, SEDIGHEH; MOMTAZMANESH, NADER

2017-01-01

Introduction: Considering the pervasiveness of social accountable medical education concept around the world and the growing trend of literature in this regard as well as various interpretations made about this concept, we found it necessary to analyze the concept of social accountable medical education. Methods: In this study, the modified version of McKenna’s approach to concept analysis was used to determine the concept, explain structures and substructures and determine the border concepts neighboring and against social accountability in medical education. Results: By studying the selected sources,the components of the concept were obtained to identify it and express an analytic definition of social accountability in medical education system. Then, a model case with all attributes of the given concept and the contrary and related concepts were mentioned to determine the boundary between the main concept and auxiliary ones. Conclusion: According to the results of this study in the field of social accountability, the detailed and transparent analytical definition of social accountable medical education can be used in future studies as well as the function and evaluation of medical education system. PMID:28761884

Construction and reconstruction concept in mathematics instruction

NASA Astrophysics Data System (ADS)

Mumu, Jeinne; Charitas Indra Prahmana, Rully; Tanujaya, Benidiktus

2017-12-01

The purpose of this paper is to describe two learning activities undertaken by lecturers, so that students can understand a mathematical concept. The mathematical concept studied in this research is the Vector Space in Linear Algebra instruction. Classroom Action Research used as a research method with pre-service mathematics teacher at University of Papua as the research subject. Student participants are divided into two parallel classes, 24 students in regular class, and remedial class consist of 18 students. Both approaches, construct and reconstruction concept, are implemented on both classes. The result shows that concept construction can only be done in regular class while in remedial class, learning with concept construction approach is not able to increase students' understanding on the concept taught. Understanding the concept of a student in a remedial class can only be carried out using the concept reconstruction approach.

Experiencing Economic Concepts: Formal and Informal Concept Learning.

ERIC Educational Resources Information Center

Armento, Beverly Jeanne

1980-01-01

This article discusses the feasibility of and the skills needed for teaching basic economic concepts such as supply and demand in an informal learning situation, in this case the simulation of an economic system based on barter. (CJ)

Investigation of Readers' Self-Concept: The Influence of Reading Proficiency on Self-Concept

ERIC Educational Resources Information Center

Chiappelli-LaSalle, Deborah

2011-01-01

The purpose of this quantitative correlation study was to research the influence of reading proficiency on global self-concept (TOT) for sixth-grade proficient readers and below proficiency readers, as well as the self-concept domains of Behavioral Adjustment (BEH), Intellectual and School Status (INT), Physical Appearance and Attributes (PHY),…

Science Club--A Concept

ERIC Educational Resources Information Center

Wegner, Claas; Issak, Nicole; Tesch, Katharina; Zehne, Carolin

2016-01-01

The following article presents a concept of a science club which was developed by two master's students as a part of their thesis and which has been developed and improved ever since. The extra-curricular concept emphasises pupils' individuality through focusing on problem based leaning, station learning, and mixed age groups. Having joined the…

Teach Concepts, Not Words.

ERIC Educational Resources Information Center

Williamson, Leon E.

Since concepts are the mental divisions man makes among the concrete and abstract phenomena of his environment so he may generate, maneuver, and control their relationships in a manner ot satisfy his physical, emotional, social, and aesthetic needs, concepts should be the vortex of intelligence. Too often students are taught as if they lack a…

Psychometric Analysis of the Thermochemistry Concept Inventory

ERIC Educational Resources Information Center

Wren, David; Barbera, Jack

2014-01-01

Assessing conceptual understanding of foundational topics before instruction on higher-order concepts can provide chemical educators with information to aid instructional design. This study provides an instrument that can be used to identify students' alternative conceptions regarding thermochemistry concepts. The Thermochemistry Concept Inventory…

Reconceptualization of African American Self-Concept.

ERIC Educational Resources Information Center

Braithwaite, Harold, Jr.; And Others

1994-01-01

Focuses on how African American students define self-concept, and whether there is a specific black self-concept. Questionnaires completed by 60 undergraduates at a historically black college provide insight into student self-esteem and support the existence of a specific black self-concept. (SLD)

Conceptions of Progress: How Is Progress Perceived? Mainstream versus Alternative Conceptions of Progress

ERIC Educational Resources Information Center

Itay, Anat

2009-01-01

Progress is a powerful political concept, encompassing different and sometimes contradictory conceptions. This paper examines the results of a survey on progress conducted at the OECD World Forum entitled "Measuring and Fostering the Progress of Societies" held in Istanbul in June 2007. First, a distinction is drawn between the two approaches to…

Visualization: A Tool for Enhancing Students' Concept Images of Basic Object-Oriented Concepts

ERIC Educational Resources Information Center

Cetin, Ibrahim

2013-01-01

The purpose of this study was twofold: to investigate students' concept images about class, object, and their relationship and to help them enhance their learning of these notions with a visualization tool. Fifty-six second-year university students participated in the study. To investigate his/her concept images, the researcher developed a survey…

Engineering Concepts: The Interplay between Concept Formation and Modeling Practices in Bioengineering Sciences

ERIC Educational Resources Information Center

Nersessian, Nancy J.

2012-01-01

As much research has demonstrated, novel scientific concepts do not arise fully formed in the head of a scientist but are created in problem-solving processes, which can extend for considerable periods and even span generations of scientists. To understand concept formation and conceptual change it is important to investigate these processes in…

Children's Conceptions of Jesus

ERIC Educational Resources Information Center

Aylward, Karen; Freathy, Rob

2008-01-01

This paper presents findings from a recent study investigating young children's (aged 10-11) conceptions of Jesus in England. The overall picture revealed by the study is that whilst there was a general assent amongst pupils in our sample towards an ethical and humanistic conception of the historical Jesus, there was less of a consensus about…

Teamwork: a concept analysis.

PubMed

Xyrichis, Andreas; Ream, Emma

2008-01-01

This paper is a report of an analysis of the concept of teamwork. Teamwork is seen as an important facilitator in delivering quality healthcare services internationally. However, research studies of teamwork in health care are criticized for lacking a basic conceptual understanding of what this concept represents. A universal definition for healthcare settings and professionals is missing from published literature. Walker and Avant's approach was used to guide this concept analysis. Literature searches used bibliographic databases (Medline, CINAHL, Web of Science, Proquest CSA), internet search engines (GoogleScholar), and hand searches. Literature published between 1976 and 2006 was reviewed but only material in English was included. Based on the analysis undertaken, teamwork is proposed as a dynamic process involving two or more healthcare professionals with complementary backgrounds and skills, sharing common health goals and exercising concerted physical and mental effort in assessing, planning, or evaluating patient care. This is accomplished through interdependent collaboration, open communication and shared decision-making, and generates value-added patient, organizational and staff outcomes. Praising the value of teamwork without a common understanding of what this concept represents endangers both research into this way of working and its effective utilization in practice. The proposed definition helps reconcile discrepancies between how this concept is understood by nurses and doctors, as well as allied health professionals. A common understanding can facilitate communication in educational, research and clinical settings and is imperative for improving clarity and validity of future research.

Examining the Fifth Graders' Understanding of Heat and Temperature Concepts via Concept Mapping

ERIC Educational Resources Information Center

Cakir Olgun, Ozlem Sila

2008-01-01

This study investigated the effect of concept mapping over traditional instruction on students' understanding and retention of heat and temperature concepts. The sample of this study consisted of 5th grade students from two classes of a elementary school (n=75). One intact class was randomly assigned to the comparison group whereas the other one…

Increasing Educational Achievement via Self Concept Change.

ERIC Educational Resources Information Center

Scheirer, Mary Ann; Kraut, Robert E.

1979-01-01

Literature linking self-concept and achievement, and evaluation research on educational programs to improve self-concept are analyzed in terms of several self-concept theories. Evidence for a causal connection between self-concept and achievement is negative. Researchers have failed to explore other theoretical approaches to educational change.…

Change in self-concept during adolescence.

PubMed

Chiam, H K

1987-01-01

Malaysian adolescents, like their Western counterparts, undergo rapid growth and development. It is hypothesized that self-concept improves as adolescents mature and become more adjusted to the changes. This study therefore sought to ascertain whether the self-concept changes with age, not only in the global sense but in the various components of the self-concept. The Tennessee Self-Concept Scale and the Brookover Scale of Academic Ability were administered to 375 adolescent boys, ranging in age from 14.7 to 17.0 years, and to 289 adolescent girls, ranging in age from 14.4 to 17.2 years. The findings show that the self-concept of adolescent boys changes with age in the direction predicted. The trend is less obvious and less consistent for girls.

Lighting innovations in concept cars

NASA Astrophysics Data System (ADS)

Berlitz, Stephan; Huhn, Wolfgang

2005-02-01

Concept cars have their own styling process. Because of the big media interest they give a big opportunity to bring newest technology with styling ideas to different fairgrounds. The LED technology in the concept cars Audi Pikes Peak, Nuvolari and Le Mans will be explained. Further outlook for the Audi LED strategy starting with LED Daytime Running Lamp will be given. The close work between styling and technical engineers results in those concept cars and further technical innovations based on LED technologies.

The Concept Currency of K-12 Science Textbooks Relative to Earth Science Concepts.

ERIC Educational Resources Information Center

Janke, Delmar Lester

This study was undertaken to determine the degree of agreement between science textbooks and scholars in earth science relative to earth science concepts to be included in the K-12 science curriculum. The study consisted of two phases: (1) the identification of a sample of earth science concepts rated by earth scientists as important for inclusion…

Categorizing and Promoting Reversibility of Mathematical Concepts

ERIC Educational Resources Information Center

Simon, Martin A.; Kara, Melike; Placa, Nicora; Sandir, Hakan

2016-01-01

Reversibility of concepts, a key aspect of mathematical development, is often problematic for learners. In this theoretical paper, we present a typology we have developed for categorizing the different reverse concepts that can be related to a particular initial concept and explicate the relationship among these different reverse concepts. We…

Bottleneck Concepts in Psychology: Exploratory First Steps

ERIC Educational Resources Information Center

Gurung, Regan A. R.; Landrum, R. Eric

2013-01-01

The authors take an initial step in identifying potential bottleneck concepts in psychology, that is, concepts that are deceptively difficult, perhaps due to student overconfidence. In order to first identify bottleneck concepts, faculty (n = 65) rated the difficulty of 91 psychological concepts from across the discipline. Students (n = 35) rated…

Asian American Self-Concept.

ERIC Educational Resources Information Center

Ito, Karen L.; Tashima, Eugene

While an individual in his own culture is expected to have a stable self concept, one who is placed in a totally different context may experience difficulties because ideas about self in the old society are no longer appropriate in the new one. In order to survive, the individual has to redefine his self concept to make it more functional in the…

Mars Rover Concept Vehicle

NASA Image and Video Library

2017-06-05

Crowds gather around the scientifically-themed Mars rover concept vehicle at the Kennedy Space Center Visitor Complex. It is a part of the "Summer of Mars" program designed to provide a survey of NASA's studies of the Red Planet. The builders of the rover, Parker Brothers Concepts of Port Canaveral, Florida, incorporated input into its design from NASA subject matter experts.

Chapter 14: Clarifying concepts

Treesearch

M. North; P. Stine

2012-01-01

There are some topics that continue to be raised by managers that were not sufficiently addressed in the first and second edition of U.S. Forest Service General Technical Report GTR 220 "An Ecosystem Management Strategy for Sierran Mixed-Conifer Forests." All of them concern issues about where and when GTR 220 concepts apply and how these concepts relate to...

Handaxes, Concepts, and Teaching

ERIC Educational Resources Information Center

Chazan, Michael

2012-01-01

This paper argues that teaching of concepts is deeply rooted in human phylogeny. The basis of this argument is a consideration of the type of knowledge used to make handaxes, a tool that is found in the archaeological record beginning around 1.8 million years ago. A distinction is made between the human capacity for teaching concepts, which has a…

Concept Mapping: Developing Guides to Literature.

ERIC Educational Resources Information Center

Leahy, Robert

1989-01-01

Concept maps, diagrams that show the relationships among concepts in a piece of writing, can help students travel through literature to destinations that they can identify and defend. The use of concept maps for Ernest Hemingway's "The Old Man and The Sea" and Albert Camus'"The Stranger" is described. (MLW)

Essential Map Concepts for Young Children.

ERIC Educational Resources Information Center

Hatcher, Barbara

This paper discusses four key concepts to help preschool and primary grade children develop the ability to read and understand maps. Examples of student activities to develop each of the concepts are provided. The essential concepts are representation, symbolization, perspective, and scale. Representation is vital. Children must perceive that a…

A concept analysis of compassionate midwifery.

PubMed

Ménage, Diane; Bailey, Elizabeth; Lees, Susan; Coad, Jane

2017-03-01

To report a concept analysis of compassionate midwifery. Recently, compassion has been incorporated into United Kingdom nursing and midwifery language through strategy, policy, recruitment and education. Professional standards direct midwives to practise compassionately therefore the concept of compassionate midwifery exists, although this has yet to be explored as a concept in the UK or internationally. An understanding of what constitutes compassionate midwifery has the potential to increase midwifery knowledge and improve practice. Concept Analysis. Literature from 1990-2015 was searched using MEDLINE, CINAHL, PsycINFO and ETHOS. Grey literature and examples of everyday usage of the concept were searched using Google. An adapted model of evolutionary concept analysis. Explanations of compassionate midwifery were absent in the literature therefore the gathered data were evaluated in relation to elements of the compassion process: recognition of suffering, emotion, motivation and action. Compassionate midwifery is defined as the interrelations of authentic presence, noticing suffering, empathy, connectedness/relationship, emotion work, motivation to help/support, empowering women and alleviating suffering through negotiation, knowledge and skills. Antecedents and consequences were also identified and depicted in a schematic representation of the concept. This concept analysis provides a unique examination of compassionate midwifery and starting point for reflection on practice, education and further analysis. Empirical studies will provide the potential to take the process further by studying the experience of compassionate midwifery from different perspectives. A theory of compassionate midwifery will develop as new findings emerge. © 2016 John Wiley & Sons Ltd.

Robust Rocket Engine Concept

NASA Technical Reports Server (NTRS)

Lorenzo, Carl F.

1995-01-01

The potential for a revolutionary step in the durability of reusable rocket engines is made possible by the combination of several emerging technologies. The recent creation and analytical demonstration of life extending (or damage mitigating) control technology enables rapid rocket engine transients with minimum fatigue and creep damage. This technology has been further enhanced by the formulation of very simple but conservative continuum damage models. These new ideas when combined with recent advances in multidisciplinary optimization provide the potential for a large (revolutionary) step in reusable rocket engine durability. This concept has been named the robust rocket engine concept (RREC) and is the basic contribution of this paper. The concept also includes consideration of design innovations to minimize critical point damage.

Vicarious traumatization: concept analysis.

PubMed

Tabor, Pamela Diane

2011-12-01

There is growing knowledge of the effects of stress on professionals, including various negative symptoms that may mirror the biopsychosocial effects exhibited by the victims of trauma. Multiple concepts including burn out, compassion fatigue, post-traumatic stress disorder (PTSD), and secondary traumatic stress, are terms that have been incorrectly interchanged with the term vicarious traumatization (VT). Clarity of vicarious victimization and understanding contributing factors is imperative in order to facilitate future research and implement timely and effective interventions, as well as sculpt evidence based practice. This concept anaylsis, complete with a concept map, discusses VT; related terminology; symptomology; prevention and relevant interventions; and discusses opportunities for personal/professional growth for nurses and especially forensic nurses working with victims of violence. © 2011 International Association of Forensic Nurses.

Orbital transfer vehicle concept definition and system analysis study, 1985. Volume 2: OTV concept definition and evaluation. Book 2: OTV concept definition

NASA Technical Reports Server (NTRS)

Dickman, Glen J.; Keeley, J. T.

1985-01-01

This portion of the Orbit Transfer Vehicle (OTV) Concept Definition and System Analysis Study, Volume 2, Book 2, summarizes the flight vehicle concept selection process and results. It presents an overview of OTV mission and system design requirements and describes the family of OTV recommended, the reasons for this recommendation, and the associated Phase C/D Program.

A Tangible Approach to Concept Mapping

NASA Astrophysics Data System (ADS)

Tanenbaum, Karen; Antle, Alissa N.

2009-05-01

The Tangible Concept Mapping project investigates using a tangible user interface to engage learners in concept map creation. This paper describes a prototype implementation of the system, presents some preliminary analysis of its ease of use and effectiveness, and discusses how elements of tangible interaction support concept mapping by helping users organize and structure their knowledge about a domain. The role of physical engagement and embodiment in supporting the mental activity of creating the concept map is explored as one of the benefits of a tangible approach to learning.

New concept of critical infrastructure strengthening

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

Gazizov, Talgat R.; Orlov, Pavel E.; Zabolotsky, Alexander M.

2016-06-08

Strengthening of critical infrastructure is considered. Modal reservation of electronics is proposed as a new concept of the strengthening. The concept combines a widely used cold backup and a recently proposed modal filtration. It makes electronics reliable as well as protected against electromagnetic interference, especially the ultra-wide band pulses. New printed circuit board structure is suggested for implementation of the proposed concept. Results of simulation in time and frequency domains are presented for the suggested structures. Considerable attenuation of dangerous excitations shows that the new concept and structure are promising.

On the Concept Image of Complex Numbers

ERIC Educational Resources Information Center

Nordlander, Maria Cortas; Nordlander, Edvard

2012-01-01

A study of how Swedish students understand the concept of complex numbers was performed. A questionnaire was issued reflecting the student view of own perception. Obtained answers show a variety of concept images describing how students adopt the concept of complex numbers. These concept images are classified into four categories in order to…

NASA's Gravitational - Wave Mission Concept Study

NASA Technical Reports Server (NTRS)

Stebbins, Robin; Jennrich, Oliver; McNamara, Paul

2012-01-01

With the conclusion of the NASA/ESA partnership on the Laser Interferometer Space Antenna (LISA) Project, NASA initiated a study to explore mission concepts that will accomplish some or all of the LISA science objectives at lower cost. The Gravitational-Wave Mission Concept Study consisted of a public Request for Information (RFI), a Core Team of NASA engineers and scientists, a Community Science Team, a Science Task Force, and an open workshop. The RFI yielded were 12 mission concepts, 3 instrument concepts and 2 technologies. The responses ranged from concepts that eliminated the drag-free test mass of LISA to concepts that replace the test mass with an atom interferometer. The Core Team reviewed the noise budgets and sensitivity curves, the payload and spacecraft designs and requirements, orbits and trajectories and technical readiness and risk. The Science Task Force assessed the science performance by calculating the horizons. the detection rates and the accuracy of astrophysical parameter estimation for massive black hole mergers, stellar-mass compact objects inspiraling into central engines. and close compact binary systems. Three mission concepts have been studied by Team-X, JPL's concurrent design facility. to define a conceptual design evaluate kt,y performance parameters. assess risk and estimate cost and schedule. The Study results are summarized.

Self-Concept Enhancement of Preschool Children.

ERIC Educational Resources Information Center

Landry, Richard G.; Pardew, E. Michelle

This study investigated whether a self-concept enhancement program would effect significant change in the self-concepts of 4-year-old middle class preschoolers as compared with classmates not in the program. All participating children (N=52) were pre- and posttested using the Thomas Self-Concept Values Test and the Developmental Profile. The…

Students' Conceptions of a Mathematical Definition

ERIC Educational Resources Information Center

Zaslavsky, Orit; Shir, Karni

2005-01-01

This article deals with 12th-grade students' conceptions of a mathematical definition. Their conceptions of a definition were revealed through individual and group activities in which they were asked to consider a number of possible definitions of four mathematical concepts: two geometric and two analytic. Data consisted of written responses to…

Threshold Concepts in Finance: Student Perspectives

ERIC Educational Resources Information Center

Hoadley, Susan; Kyng, Tim; Tickle, Leonie; Wood, Leigh N.

2015-01-01

Finance threshold concepts are the essential conceptual knowledge that underpin well-developed financial capabilities and are central to the mastery of finance. In this paper we investigate threshold concepts in finance from the point of view of students, by establishing the extent to which students are aware of threshold concepts identified by…

Contemporary concepts of dissociation.

PubMed

Avdibegović, Esmina

2012-10-01

The concept of dissociation was developed in the late 19th century by Pierre Janet for conditions of "double consciousness" in hypnosis, hysteria, spirit possession and mediumship. He defined dissociation as a deficit in the capacity of integration of two or more different "systems of ideas and functions that constitute personality", and suggested that it can be related to a genetic component, to severe illness and fatigue, and particularly to experiencing adverse, potentially traumatizing events. By the late 20th century, various and often contradictory concepts of dissociation were suggested, which were either insufficient or exceedingly including when compared to the original idea. Currently, dissociation is used to describe a wide range of normal and abnormal phenomena as a process in which behaviour, thoughts and emotions can become separated one from another. A complete presentation of mechanisms involved in dissociation is still unknown. Scientific research on basic processes of dissociation is derived mainly from studies of hypnosis and post-traumatic stress disorder. Given the controversies in modern concepts of dissociation, some researchers and theorists suggest return to the original understanding of dissociation as a basic premise for the further development of the concept of dissociation.

Adolescent self-concept and health into adulthood.

PubMed

Park, Jungwee

2003-01-01

This article examines factors associated with adolescent self-concept and the impact of adolescent self-concept on psychological and physical health and health behaviour in young adulthood. The data are from the household cross-sectional (1994/95) and longitudinal (1994/95 to 2000/01) components of Statistics Canada's National Population Health Survey. Scores on self-concept indicators in 1994/95 were compared between the sexes and age groups (12 to 15 versus 16 to 19). Multivariate analyses were used to examine cross-sectional and longitudinal associations between adolescent self-concept and depression, self-perceived health, physical activity and obesity, controlling for other possible confounders. Self-concept tends to be low among girls compared with boys. Cross-sectionally, adolescent self-concept was associated with household income and emotional support. For girls and for young adolescents, a weak self-concept in 1994/95 was related to the incidence of depression over the next six years; it was also predictive of physical inactivity among boys, and obesity among both sexes. A strong self-concept had a positive long-term effect on girls' self-perceived health.

Nomadic concepts in the history of biology.

PubMed

Surman, Jan; Stráner, Katalin; Haslinger, Peter

2014-12-01

The history of scientific concepts has firmly settled among the instruments of historical inquiry. In our section we approach concepts from the perspective of nomadic concepts (Isabelle Stengers). Instead of following the evolution of concepts within one disciplinary network, we see them as subject to constant reification and change while crossing and turning across disciplines and non-scientific domains. This introduction argues that understanding modern biology is not possible without taking into account the constant transfers and translations that affected concepts. We argue that this approach does not only engage with nomadism between disciplines and non-scientific domains, but reflects on and involves the metaphoric value of concepts as well. Copyright © 2014 Elsevier Ltd. All rights reserved.

Unified Technical Concepts. Module 10: Transducers.

ERIC Educational Resources Information Center

Technical Education Research Center, Waco, TX.

This concept module on transducers is one of thirteen modules that provide a flexible, laboratory-based physics instructional package designed to meet the specialized needs of students in two-year, postsecondary technical schools. Each of the thirteen concept modules discusses a single physics concept and how it is applied to each energy system.…

Unified Technical Concepts. Module 13: Radiation.

ERIC Educational Resources Information Center

Technical Education Research Center, Waco, TX.

This concept module on radiation is one of thirteen modules that provide a flexible, laboratory-based physics instructional package designed to meet the specialized needs of students in two-year, postsecondary technical schools. Each of the thirteen concept modules discusses a single physics concept and how it is applied to each energy system.…

Unified Technical Concepts. Module 5: Resistance.

ERIC Educational Resources Information Center

Technical Education Research Center, Waco, TX.

This concept module on resistance is one of thirteen modules that provide a flexible, laboratory-based physics instructional package designed to meet the specialized needs of students in two-year, postsecondary technical schools. Each of the thirteen concept modules discusses a single physics concept and how it is applied to each energy system.…

Unified Technical Concepts. Module 1: Force.

ERIC Educational Resources Information Center

Technical Education Research Center, Waco, TX.

This concept module on force is one of thirteen modules that provide a flexible, laboratory-based physics instructional package designed to meet the specialized needs of students in two-year, postsecondary technical schools. Each of the thirteen concept modules discusses a single physics concept and how it is applied to each energy system. This…

Unified Technical Concepts. Module 6: Power.

ERIC Educational Resources Information Center

Technical Education Research Center, Waco, TX.

This concept module on power is one of thirteen modules that provide a flexible, laboratory-based physics instructional package designed to meet the specialized needs of students in two-year, postsecondary technical schools. Each of the thirteen concept modules discusses a single physics concept and how it is applied to each energy system. In this…

Space Operations Center: A concept analysis

NASA Technical Reports Server (NTRS)

Livingston, L. E.

1979-01-01

The Space Operations Center is a concept for a shuttle-service, permanent, manned facility in low Earth orbit. An analysis of this concept was conducted and the results are reported. It is noted that there are no NASA plans at present to implement such a concept. The results are intended for consideration in future planning.

Unified Technical Concepts. Module 2: Work.

ERIC Educational Resources Information Center

Technical Education Research Center, Waco, TX.

This concept module on work is one of thirteen modules that provide a flexible, laboratory-based physics instructional package designed to meet the specialized needs of students in two-year, postsecondary technical schools. Each of the thirteen concept modules discusses a single physics concept and how it is applied to each energy system. In this…

Unified Technical Concepts. Module 3: Rate.

ERIC Educational Resources Information Center

Technical Education Research Center, Waco, TX.

This concept module on rate is one of thirteen modules that provide a flexible, laboratory-based physics instructional package designed to meet the specialized needs of students in two-year, postsecondary technical schools. Each of the thirteen concept modules discusses a single physics concept and how it is applied to each energy system. This…

Maternal sensitivity: a concept analysis.

PubMed

Shin, Hyunjeong; Park, Young-Joo; Ryu, Hosihn; Seomun, Gyeong-Ae

2008-11-01

The aim of this paper is to report a concept analysis of maternal sensitivity. Maternal sensitivity is a broad concept encompassing a variety of interrelated affective and behavioural caregiving attributes. It is used interchangeably with the terms maternal responsiveness or maternal competency, with no consistency of use. There is a need to clarify the concept of maternal sensitivity for research and practice. A search was performed on the CINAHL and Ovid MEDLINE databases using 'maternal sensitivity', 'maternal responsiveness' and 'sensitive mothering' as key words. The searches yielded 54 records for the years 1981-2007. Rodgers' method of evolutionary concept analysis was used to analyse the material. Four critical attributes of maternal sensitivity were identified: (a) dynamic process involving maternal abilities; (b) reciprocal give-and-take with the infant; (c) contingency on the infant's behaviour and (d) quality of maternal behaviours. Maternal identity and infant's needs and cues are antecedents for these attributes. The consequences are infant's comfort, mother-infant attachment and infant development. In addition, three positive affecting factors (social support, maternal-foetal attachment and high self-esteem) and three negative affecting factors (maternal depression, maternal stress and maternal anxiety) were identified. A clear understanding of the concept of maternal sensitivity could be useful for developing ways to enhance maternal sensitivity and to maximize the developmental potential of infants. Knowledge of the attributes of maternal sensitivity identified in this concept analysis may be helpful for constructing measuring items or dimensions.

Concept analysis: lack of anonymity.

PubMed

Swan, Marilyn A; Hobbs, Barbara B

2017-05-01

To re-examine and expand understanding of the concept 'lack of anonymity' as a component of rural nursing theory. Early healthcare literature reports lack of anonymity as part of social and working environments, particularly rural nursing. Rural nursing theory included the first published concept analysis on lack of anonymity but lacked empirical referents. Workforce, societal and rural healthcare changes support an updated analysis. To further understand lack of anonymity, its present day use and applicability to diverse environments, research from multiple disciplines was reviewed. Concept analysis. A literature search using eight terms in eleven databases was conducted of literature published between 2008-2013. Walker and Avant's concept analysis methodology guided the analysis. The previous concept analysis is supported in part by current literature. The defining attributes, 'identifiable', 'establishing boundaries for public and private self and interconnectedness' in a community were updated. Updated antecedents include: (i) environmental context; (ii) opportunities to become visible; (iii) developing relationships and (iv) unconscious or limited awareness of public or personal privacy. Consequences are: (i) familiarity; (ii) visibility; (iii) awareness of privacy and (iv) manage or balance of lack of anonymity. Cases were constructed and empirical referents identified. The concept of lack of anonymity was updated; portions of the original definition remain unchanged. Empirical referents reveal the defining attributes in daily life and may guide future research on the effect of lack of anonymity on nursing practice. This analysis advances the conceptual understanding of rural nursing theory. © 2016 John Wiley & Sons Ltd.

Calling to Nursing: Concept Analysis.

PubMed

Emerson, Christie

The aims of this article are (a) to analyze the concept of a calling as it relates nursing and (b) to develop a definition of calling to nursing with the detail and clarity needed to guide reliable and valid research. The classic steps described by Walker and Avant are used for the analysis. Literature from several disciplines is reviewed including vocational psychology, Christian career counseling, sociology, organizational management, and nursing. The analysis provides an operational definition of a calling to nursing and establishes 3 defining attributes of the concept: (a) a passionate intrinsic motivation or desire (perhaps with a religious component), (b) an aspiration to engage in nursing practice, as a means of fulfilling one's purpose in life, and (c) the desire to help others as one's purpose in life. Antecedents to the concept are personal introspection and cognitive awareness. Positive consequences to the concept are improved work meaningfulness, work engagement, career commitment, personal well-being, and satisfaction. Negative consequences of having a calling might include willingness to sacrifice well-being for work and problems with work-life balance. Following the concept analysis, philosophical assumptions, contextual factors, interdisciplinary work, research opportunities, and practice implications are discussed.

Faith: a concept analysis.

PubMed

Dyess, Susan Macleod

2011-12-01

This paper reports a concept analysis of faith. There are numerous scholars who consider spirituality and religiosity as they relate to health and nursing. Faith is often implied as linked to these concepts but deserves distinct exploration. In addition, as nursing practice conducted within communities of faith continues to emerge, concept clarification of faith is warranted. Qualitative analysis deliberately considered the concept of faith within the lens of Margaret Newman's health as expanding consciousness. Data sources used included a secondary analysis of stories collected within a study conducted in 2008, two specific reconstructed stories, the identification of attributes noted within these various stories and selected philosophical literature from 1950 to 2009.  A definition was identified from the analysis; faith is an evolving pattern of believing, that grounds and guides authentic living and gives meaning in the present moment of inter-relating. Four key attributes of faith were also identified as focusing on beliefs, foundational meaning for life, living authentically in accordance with beliefs, and interrelating with self, others and/or Divine. Although a seemingly universal concept, faith was defined individually. Faith appeared to be broader than spiritual practices and religious ritual and became the very foundation that enabled human beings to make sense of their world and circumstances. More work is needed to understand how faith community nursing can expand the traditional understanding of denominationally defined faith community practices and how nurses can support faith for individuals with whom they encounter within all nursing practice. © 2011 Blackwell Publishing Ltd.

Concept Analysis of Illness Engulfment in Schizophrenia.

PubMed

Vining, Danny; Robinson, Jennifer C

2016-06-01

Schizophrenia has a significant risk of damaging an individual's self-concept. Through the process of illness engulfment an individual's self-concept becomes reorganized entirely around the experience of having schizophrenia. The purpose of this manuscript is to clarify the structure and function of the concept of illness engulfment in schizophrenia using Walker and Avant's (2011) method of concept analysis. Data came from a review of scholarly literature, as well as contemporary and historical art, literature, music, and other media forms. The analysis discussed two defining attributes of experience of illness and impact on self-concept with a total of seven indicators. The article listed antecedents, consequences, and discussed the Modified Engulfment Scale as empirical referents. Fictional cases were developed to illustrate the concept. Finally, the concept of illness engulfment was discussed within the framework of the Roy Adaptation Model. Copyright © 2016 Elsevier Inc. All rights reserved.

Self-Concept Changes in Multiple Self-Concept Domains of Gifted Students Participating in a Summer Residential School

ERIC Educational Resources Information Center

Preckel, Franzis; Rach, Hannah; Scherrer, Vsevolod

2016-01-01

The present study investigated changes in self-esteem, academic self-concept, intellectual self-concept, and social self-concepts of acceptance, assertion, relations with same-sex peers and relations with other-sex peers with 177 gifted students participating in a 16-day summer school in Germany. Students were assessed three times by self-report…

Self-Concept Change in Camp Staff.

ERIC Educational Resources Information Center

Henderson, Karla A.; Bialeschki, M. Deborah

The 1981 study ascertained whether the self-concept of 66 camp staff from 2 Wisconsin camps changed more than a control group of 18 college students attending summer school; if differences in self-concept were based on a particular characteristic (age, gender, staff position, years at camp); and in what ways, if any, self-concept of camp staff…

Nascent Function Concepts in Nova Scientia

ERIC Educational Resources Information Center

Groetsch, C. W.

2004-01-01

The origin of the function concept is usually traced to Galileo's work on motion. We argue that specific proto-function concepts appeared in the work of Tartaglia a century before the publication of Galileo's Two New Sciences. The study of Tartaglia's ideas can be used in the classroom as a historical introduction to various function concepts,…

Changing Conceptions of Globalization: Changing Conceptions of Education.

ERIC Educational Resources Information Center

Fitzsimons, Patrick

2000-01-01

Examines changing conceptions of globalization in education, highlighting new electronic information technologies that, rather than promoting homogeneity, are producing a stimulus for a politics of difference. Cyborgs and cyberspace are emerging as discourses of disunity and difference. The essay recommends a form of critical localism to challenge…

Telepresence work system concepts

NASA Technical Reports Server (NTRS)

Jenkins, L. M.

1985-01-01

Telepresence has been used in the context of the ultimate in remote manipulation where the operator is provided with the sensory feedback and control to perform highly dexterous tasks. The concept of a Telepresence Work Station (TWS) for operation in space is described. System requirements, concepts, and a development approach are discussed. The TWS has the potential for application on the Space Shuttle, on the Orbit Maneuver Vehicle, on an Orbit Transfer Vehicle, and on the Space Station. The TWS function is to perform satellite servicing tasks and construction and assembly operations in the buildup of large spacecraft. The basic concept is a pair of dexterous arms controlled from a remote station by an operation with feedback. It may be evolved through levels of supervisory control to a smart adaptive robotic system.

Study of alternate space shuttle concepts

NASA Technical Reports Server (NTRS)

1971-01-01

A study of alternate space shuttle concepts was conducted to examine the stage-and-one-half concept and its potential for later conversion and use in the two stage reusable shuttle system. A study of external hydrogen tank concepts was conducted to determine the issues involved in the design and production of a low-cost expendable tank system. The major objectives of the study were to determine: (1) realistic drop tank program cost estimates, (2) estimated drop tank program cost for selected specific designs, and (3) change in program cost due to variations in design and manufacturing concepts and changes in program assumptions.

Selection and Analysis of Social Studies Concepts for Inclusion in Tests of Concept Attainment.

ERIC Educational Resources Information Center

Tabachnick, B. Robert; And Others

Major social studies concepts taught to fourth graders in Madison, Wisconsin, were identified by examining the school district course of study and social studies textbooks and by consulting central office supervisors and teachers. The concepts identified in this manner fell into three major categories: Geographic Region, Man and Society, and Map…

Cancer-Related Psychological Distress: A Concept Analysis.

PubMed

Gundelach, Amy; Henry, Barb

2016-12-01

Cancer-related psychological distress, as a concept, has limited research literature substantiation. Several studies report that patients with cancer suffer from significant psychological distress; however, the description of the concept of cancer-related psychological distress has not been clearly described. Theoretical work based on the concept is also unclear. This article is a report on the concept of cancer-related psychological distress to clarify the concept as separate from non-cancer-related psychological distress and promote the use of the term in nursing practice and research across the cancer trajectory. This article used a content analysis to examine the literature. The literature review for this article used CINAHL®, PsycINFO®, and PubMed to search publications from 1999-2016. Content analysis of the literature revealed that the term psychological distress was used often with regard to distress in patients with cancer, but the concept of cancer-related psychological distress was not clearly defined. Four attributes encompass the concept of cancer-related psychological distress.

Professionalism as an Organizational Concept.

ERIC Educational Resources Information Center

Beam, Randal A.

Although professionalism has been an important concept to American journalists for over a century, no consensus exists regarding what concepts like profession, professionalism, and professionalization mean. Three basic traditions have dominated the sociological literature on professionalism: (1) the phenomenological approach, which advocates…

Changing Conceptions of Activation Energy.

ERIC Educational Resources Information Center

Pacey, Philip D.

1981-01-01

Provides background material which relates to the concept of activation energy, fundamental in the study of chemical kinetics. Compares the related concepts of the Arrhenius activation energy, the activation energy at absolute zero, the enthalpy of activation, and the threshold energy. (CS)

Promethus Hot Leg Piping Concept

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

AM Girbik; PA Dilorenzo

2006-01-24

The Naval Reactors Prime Contractor Team (NRPCT) recommended the development of a gas cooled reactor directly coupled to a Brayton energy conversion system as the Space Nuclear Power Plant (SNPP) for NASA's Project Prometheus. The section of piping between the reactor outlet and turbine inlet, designated as the hot leg piping, required unique design features to allow the use of a nickel superalloy rather than a refractory metal as the pressure boundary. The NRPCT evaluated a variety of hot leg piping concepts for performance relative to SNPP system parameters, manufacturability, material considerations, and comparison to past high temperature gas reactormore » (HTGR) practice. Manufacturability challenges and the impact of pressure drop and turbine entrance temperature reduction on cycle efficiency were discriminators between the piping concepts. This paper summarizes the NRPCT hot leg piping evaluation, presents the concept recommended, and summarizes developmental issues for the recommended concept.« less

Roles of Terminology, Experience, and Energy Concepts in Student Conceptions of "Freezing" and "Boiling"

ERIC Educational Resources Information Center

Jasien, Paul G.

2013-01-01

A discussion of some student conceptions of the solid-liquid and liquid-vapor phase transitions is presented. Data from open-ended, short-answer questions were collected from first-semester general chemistry students and then discussed in the context of previous studies. The responses gave insight into the various student conceptions about these…

The Single Crew Module Concept for Exploration

NASA Technical Reports Server (NTRS)

Chambliss, Joe

2012-01-01

Many concepts have been proposed for exploring space. In early 2010 presidential direction called for reconsidering the approach to address changes in exploration destinations, use of new technologies and development of new capabilities to support exploration of space. Considering the proposed new technology and capabilities that NASA was directed to pursue, the single crew module (SCM) concept for a more streamlined approach to the infrastructure and conduct of exploration missions was developed. The SCM concept combines many of the new promising technologies with a central concept of mission architectures that uses a single habitat module for all phases of an exploration mission. Integrating mission elements near Earth and fully fueling them prior to departure of the vicinity of Earth provides the capability of using the single habitat both in transit to an exploration destination and while exploring the destination. The concept employs the capability to return the habitat and interplanetary propulsion system to Earth vicinity so that those elements can be reused on subsequent exploration missions. This paper describes the SCM concept, provides a top level mass estimate for the elements needed and trades the concept against Many concepts have been proposed for exploring space. In early 2010 presidential direction called for reconsidering the approach to address changes in exploration destinations, use of new technologies and development of new capabilities to support exploration of space. Considering the proposed new technology and capabilities that NASA was directed to pursue, the single crew module (SCM) concept for a more streamlined approach to the infrastructure and conduct of exploration missions was developed. The SCM concept combines many of the new promising technologies with a central concept of mission architectures that uses a single habitat module for all phases of an exploration mission. Integrating mission elements near Earth and fully fueling them

Mining Concept Maps to Understand University Students' Learning

ERIC Educational Resources Information Center

Yoo, Jin Soung; Cho, Moon-Heum

2012-01-01

Concept maps, visual representations of knowledge, are used in an educational context as a way to represent students' knowledge, and identify mental models of students; however there is a limitation of using concept mapping due to its difficulty to evaluate the concept maps. A concept map has a complex structure which is composed of concepts and…

Linear separability in superordinate natural language concepts.

PubMed

Ruts, Wim; Storms, Gert; Hampton, James

2004-01-01

Two experiments are reported in which linear separability was investigated in superordinate natural language concept pairs (e.g., toiletry-sewing gear). Representations of the exemplars of semantically related concept pairs were derived in two to five dimensions using multidimensional scaling (MDS) of similarities based on possession of the concept features. Next, category membership, obtained from an exemplar generation study (in Experiment 1) and from a forced-choice classification task (in Experiment 2) was predicted from the coordinates of the MDS representation using log linear analysis. The results showed that all natural kind concept pairs were perfectly linearly separable, whereas artifact concept pairs showed several violations. Clear linear separability of natural language concept pairs is in line with independent cue models. The violations in the artifact pairs, however, yield clear evidence against the independent cue models.

Concept Maps in Introductory Statistics

ERIC Educational Resources Information Center

Witmer, Jeffrey A.

2016-01-01

Concept maps are tools for organizing thoughts on the main ideas in a course. I present an example of a concept map that was created through the work of students in an introductory class and discuss major topics in statistics and relationships among them.

Some Student Conceptions of Electromagnetic Induction

NASA Astrophysics Data System (ADS)

Thong, Wai Meng; Gunstone, Richard

2008-01-01

Introductory electromagnetism is a central part of undergraduate physics. Although there has been some research into student conceptions of electromagnetism, studies have been sparse and separated. This study sought to explore second year physics students’ conceptions of electromagnetism, to investigate to what extent the results from the present study are similar to these results from other studies, and to uncover any new forms of alternative conceptions. Data for this study came from 15 in-depth interviews. Three previously unreported alternative conceptions were identified in the study: 1) induced current varies proportionately with current in solenoid; 2) there must be contact between magnetic flux and the external coil in order for any emf to be induced in the coil; 3) coulombic or electrostatic potential difference is present in an induced electric field. These alternative conceptions were manifested in these students’ explanations of electromagnetic phenomena presented to them during the interviews.

Computing under-ice discharge: A proof-of-concept using hydroacoustics and the Probability Concept

NASA Astrophysics Data System (ADS)

Fulton, John W.; Henneberg, Mark F.; Mills, Taylor J.; Kohn, Michael S.; Epstein, Brian; Hittle, Elizabeth A.; Damschen, William C.; Laveau, Christopher D.; Lambrecht, Jason M.; Farmer, William H.

2018-07-01

Under-ice discharge is estimated using open-water reference hydrographs; however, the ratings for ice-affected sites are generally qualified as poor. The U.S. Geological Survey (USGS), in collaboration with the Colorado Water Conservation Board, conducted a proof-of-concept to develop an alternative method for computing under-ice discharge using hydroacoustics and the Probability Concept. The study site was located south of Minturn, Colorado (CO), USA, and was selected because of (1) its proximity to the existing USGS streamgage 09064600 Eagle River near Minturn, CO, and (2) its ease-of-access to verify discharge using a variety of conventional methods. From late September 2014 to early March 2015, hydraulic conditions varied from open water to under ice. These temporal changes led to variations in water depth and velocity. Hydroacoustics (tethered and uplooking acoustic Doppler current profilers and acoustic Doppler velocimeters) were deployed to measure the vertical-velocity profile at a singularly important vertical of the channel-cross section. Because the velocity profile was non-standard and cannot be characterized using a Power Law or Log Law, velocity data were analyzed using the Probability Concept, which is a probabilistic formulation of the velocity distribution. The Probability Concept-derived discharge was compared to conventional methods including stage-discharge and index-velocity ratings and concurrent field measurements; each is complicated by the dynamics of ice formation, pressure influences on stage measurements, and variations in cross-sectional area due to ice formation. No particular discharge method was assigned as truth. Rather one statistical metric (Kolmogorov-Smirnov; KS), agreement plots, and concurrent measurements provided a measure of comparability between various methods. Regardless of the method employed, comparisons between each method revealed encouraging results depending on the flow conditions and the absence or presence of ice

Computing under-ice discharge: A proof-of-concept using hydroacoustics and the Probability Concept

USGS Publications Warehouse

Fulton, John W.; Henneberg, Mark F.; Mills, Taylor J.; Kohn, Michael S.; Epstein, Brian; Hittle, Elizabeth A.; Damschen, William C.; Laveau, Christopher D.; Lambrecht, Jason M.; Farmer, William H.

2018-01-01

Under-ice discharge is estimated using open-water reference hydrographs; however, the ratings for ice-affected sites are generally qualified as poor. The U.S. Geological Survey (USGS), in collaboration with the Colorado Water Conservation Board, conducted a proof-of-concept to develop an alternative method for computing under-ice discharge using hydroacoustics and the Probability Concept.The study site was located south of Minturn, Colorado (CO), USA, and was selected because of (1) its proximity to the existing USGS streamgage 09064600 Eagle River near Minturn, CO, and (2) its ease-of-access to verify discharge using a variety of conventional methods. From late September 2014 to early March 2015, hydraulic conditions varied from open water to under ice. These temporal changes led to variations in water depth and velocity. Hydroacoustics (tethered and uplooking acoustic Doppler current profilers and acoustic Doppler velocimeters) were deployed to measure the vertical-velocity profile at a singularly important vertical of the channel-cross section. Because the velocity profile was non-standard and cannot be characterized using a Power Law or Log Law, velocity data were analyzed using the Probability Concept, which is a probabilistic formulation of the velocity distribution. The Probability Concept-derived discharge was compared to conventional methods including stage-discharge and index-velocity ratings and concurrent field measurements; each is complicated by the dynamics of ice formation, pressure influences on stage measurements, and variations in cross-sectional area due to ice formation.No particular discharge method was assigned as truth. Rather one statistical metric (Kolmogorov-Smirnov; KS), agreement plots, and concurrent measurements provided a measure of comparability between various methods. Regardless of the method employed, comparisons between each method revealed encouraging results depending on the flow conditions and the absence or presence of ice

The CEOS/GEO Constellation Concept

NASA Technical Reports Server (NTRS)

Cramer, Bryant; Ungar, Stephen

2007-01-01

The Constellation concept was first proposed during a discussion at the 19th CEOS Plenary, in London, in November 2005. The first Paper of the Constellation Concept was presented at the CEOS Strategic Implementation Team meeting (SIT-18), in Frascati, in March 2006, and strongly endorsed by the CEOS Principals. The concept attempts to provide agencies with tools for implementation of the elements that have been previously discussed in international forums (GEO Work Plan, GCOS Implementation Plan). This provides a solid foundation from the community providing requirements. Though agency spending is governed by national requirements, CEOS seeks synergies among member agency programs to fulfil GEOSS requirements, defining guidelines and standards to help agencies to determine from the outset what can be achieved. The constellations concept will allow the development of a commonalties approach among different agencies. At the heart of the application of the Constellations concept is the definition of a series of standards (specific to each Constellation) - required to be satisfied for any mission to be included in the constellation - and a process of recognition/acceptance, whereby an agency applies to SIT to have one or more of its missions (ideally from the outset of planning) recognised as meeting the constellation standards and thereby satisfying the relevant user community needs.

Sensory overload: A concept analysis.

PubMed

Scheydt, Stefan; Müller Staub, Maria; Frauenfelder, Fritz; Nielsen, Gunnar H; Behrens, Johann; Needham, Ian

2017-04-01

In the context of mental disorders sensory overload is a widely described phenomenon used in conjunction with psychiatric interventions such as removal from stimuli. However, the theoretical foundation of sensory overload as addressed in the literature can be described as insufficient and fragmentary. To date, the concept of sensory overload has not yet been sufficiently specified or analyzed. The aim of the study was to analyze the concept of sensory overload in mental health care. A literature search was undertaken using specific electronic databases, specific journals and websites, hand searches, specific library catalogues, and electronic publishing databases. Walker and Avant's method of concept analysis was used to analyze the sources included in the analysis. All aspects of the method of Walker and Avant were covered in this concept analysis. The conceptual understanding has become more focused, the defining attributes, influencing factors and consequences are described and empirical referents identified. The concept analysis is a first step in the development of a middle-range descriptive theory of sensory overload based on social scientific and stress-theoretical approaches. This specification may serve as a fundament for further research, for the development of a nursing diagnosis or for guidelines. © 2017 Australian College of Mental Health Nurses Inc.

[Restorgenesis: a new concept].

PubMed

Keren, Ofer; Ohry, Avi

2004-11-01

This article suggests a new concept, named "restorgenesis". It addresses issues related to the essence of rehabilitation, such as defining the patient's potential for recovery, the milestones of the recovery process, its facilitating and impinging factors. This concept is a "hybrid" of two already existing notions: "pathogenesis", i.e. the definition of the factors in the individual and his/her environment that are causative of illness, and "salutogenesis", i.e. the definition of factors in the individual as well as in the environment that promote health. We suggest the notion of "restorgenesis" to embrace the processes of re-building and re-equilibrating that are at the core of the recovery process. Finally, we study the relevance of the recently introduced concept of allostasis, which includes the psychological and physiological factors related to the human system optimal functioning, to the process of rehabilitation.

Probability concepts in quality risk management.

PubMed

Claycamp, H Gregg

2012-01-01

Essentially any concept of risk is built on fundamental concepts of chance, likelihood, or probability. Although risk is generally a probability of loss of something of value, given that a risk-generating event will occur or has occurred, it is ironic that the quality risk management literature and guidelines on quality risk management tools are relatively silent on the meaning and uses of "probability." The probability concept is typically applied by risk managers as a combination of frequency-based calculation and a "degree of belief" meaning of probability. Probability as a concept that is crucial for understanding and managing risk is discussed through examples from the most general, scenario-defining and ranking tools that use probability implicitly to more specific probabilistic tools in risk management. A rich history of probability in risk management applied to other fields suggests that high-quality risk management decisions benefit from the implementation of more thoughtful probability concepts in both risk modeling and risk management. Essentially any concept of risk is built on fundamental concepts of chance, likelihood, or probability. Although "risk" generally describes a probability of loss of something of value, given that a risk-generating event will occur or has occurred, it is ironic that the quality risk management literature and guidelines on quality risk management methodologies and respective tools focus on managing severity but are relatively silent on the in-depth meaning and uses of "probability." Pharmaceutical manufacturers are expanding their use of quality risk management to identify and manage risks to the patient that might occur in phases of the pharmaceutical life cycle from drug development to manufacture, marketing to product discontinuation. A probability concept is typically applied by risk managers as a combination of data-based measures of probability and a subjective "degree of belief" meaning of probability. Probability as

Introduction: Bridging Concepts.

PubMed

Davids, Karel

2015-12-01

How can those in the history of science, history of technology, and economics communicate more with each other than they are accustomed? How can they become more globally oriented? While these three disciplines today have more convergent interests than in the past, there is still a large potential for further exchange and involvement to explore and exploit. The contributors to this Focus section discuss a number of concepts that may serve as tools to bring these three disciplines more closely together and ease their evolution in a less Eurocentric direction. These concepts include trading zones, interaction and formalization, production, and machines and self-organization.

The Power of Concept Fields

ERIC Educational Resources Information Center

Stoyanova, Elena

2008-01-01

The ability to discover, explore, describe and mathematise relationships between different concepts is at the heart of scientific work of professional mathematicians and scientists. At school level, however, helping students to link, differentiate or investigate the nature of relationships between mathematics concepts remains in the shadow of…

Vocational Maturity and Self Concepts.

ERIC Educational Resources Information Center

Helbing, Hans

The relationship between separate dimensions of vocational maturity and different self-concept and identity variables were examined. Subjects were Dutch students, age 14-18 years. The vocational maturity dimensions were measured by Dutch adaptations of American vocational maturity scales. Instruments for self-concept and identity measurement were…

Four Conceptions of Linguistic Disadvantage

ERIC Educational Resources Information Center

Shorten, Andrew

2017-01-01

Policymakers need a conception of linguistic disadvantage to supply guidance about the relative priority of inequalities with a linguistic dimension and to inform decisions about whether such inequalities require correction or compensation. A satisfactory conception of linguistic disadvantage will make it possible to compare the situations of…

Nurses' policy influence: A concept analysis.

PubMed

Arabi, Akram; Rafii, Forough; Cheraghi, Mohammad Ali; Ghiyasvandian, Shahrzad

2014-05-01

Nurses' influence on health policy protects the quality of care by access to required recourses and opportunities. This is a new and important concept for nursing; however, research studies on policy influence of nurses in health care sector are lacking a basic conceptual understanding of what this concept represents. The aim of this paper is to clarify the concept of nurses' policy influence and to propose the definition of this concept, considering the context of Iran. The eight stages of Walker and Avant approach was used to guide this concept analysis. Various databases and internet engines were searched to find all related information about the concept. Textbooks were also searched manually. English language literature reports published between 1990 and 2012 were reviewed. Based on the analysis undertaken, nurses' policy influence is nurses' ability in influencing decisions and affairs related to health through political knowledge, effective communication, and collaboration with other members of the health team, which results in the improvement of nurses' job environment and increases patient outcomes. This is a dynamic process situated on a spectrum and is accompanied with nurses' knowledge, competency, power, and advocacy, and also their ability to change. Nurses have individual views on health care issues and influence health care policies in different ways. With a common understanding of nurses' policy influence as a concept, nurses will recognize the importance of policy making in the health sector and their influence on this process and also on patients' outcomes.

Health Seeking in Men: A Concept Analysis.

PubMed

Hooper, Gwendolyn L; Quallich, Susanne A

2016-01-01

This article describes the analysis of the concept of health seeking in men. Men have shorter life expectancies and utilize health services less often than women, leading to poor health outcomes, but a gendered basis for health seeking remains poorly defined. Walker and Avant’s framework was used to guide this concept analysis. Literature published in English from 1990-2015 was reviewed. Thematic analysis identified attributes, antecedents, and consequences of the concept. Based on the analysis, a contemporary definition for health seeking in men was constructed, rooted in the concept of health. The definition is based on the concept analysis and the defining attributes that were identified. This analysis provides a definition specifically for health seeking in American men, making it more specific and gender-based than the parent concept of “health.” This concept analysis provides conceptual clarity that can guide development of a conceptual framework that may be uniquely relevant to providers in urology. Further exploration will uncover specific cultural, social, sexual, and geographic perspectives.

Teaching concept analysis to graduate nursing students.

PubMed

Schiller, Catharine J

2018-04-01

To provide guidance to educators who use the Wilson (1963) concept analysis method, as modified by Walker and Avant (2011), in their graduate nursing curriculum BACKGROUND: While graduate nursing curricula often include a concept analysis assignment, there is a paucity of literature to assist educators in guiding students through this challenging process. This article details one way for educators to assist graduate nursing students in learning how to undertake each step of the Wilson (1963) concept analysis method, as modified by Walker and Avant (2011). Wilson (1963) concept analysis method, as modified by Walker and Avant (2011). Using examples, this article walks the reader through the Walker and Avant (2011) concept analysis process and addresses those issues commonly encountered by educators during this process. This article presented one way of walking students through a Walker and Avant (2011) concept analysis. Having clear information about the steps involved in developing a concept analysis will make it easier for educators to incorporate it into their graduate nursing curriculum and to effectively guide students on their journey through this process. © 2018 Wiley Periodicals, Inc.

Probing concept of critical thinking in nursing education in Iran: a concept analysis.

PubMed

Tajvidi, Mansooreh; Ghiyasvandian, Shahrzad; Salsali, Mahvash

2014-06-01

Given the wide disagreement over the definition of critical thinking in different disciplines, defining and standardizing the concept according to the discipline of nursing is essential. Moreover, there is limited scientific evidence regarding critical thinking in the context of nursing in Iran. The aim of this study was to analyze and clarify the concept of critical thinking in nursing education in Iran. We employed the hybrid model to define the concept of critical thinking. The hybrid model has three interconnected phases--the theoretical phase, the fieldwork phase, and the final analytic phase. In the theoretical phase, we searched the online scientific databases (such as Elsevier, Wiley, CINAHL, Proquest, Ovid, and Springer as well as Iranian databases such as SID, Magiran, and Iranmedex). In the fieldwork phase, a purposive sample of 17 nursing faculties, PhD students, clinical instructors, and clinical nurses was recruited. Participants were interviewed by using an interview guide. In the analytical phase we compared the data from the theoretical and the fieldwork phases. The concept of critical thinking had many different antecedents, attributes, and consequences. Antecedents, attributes, and consequences of critical thinking concept identified in the theoretical phase were in some ways different and in some way similar to antecedents, attributes, and consequences identified in the fieldwork phase. Finally critical thinking in nursing education in Iran was clarified. Critical thinking is a logical, situational, purposive, and outcome-oriented thinking process. It is an acquired and evolving ability which develops individually. Such thinking process could lead to the professional accountability, personal development, God's consent, conscience appeasement, and personality development. Copyright © 2014. Published by Elsevier B.V.

Dying with dignity: a concept analysis.

PubMed

Hemati, Zeinab; Ashouri, Elaheh; AllahBakhshian, Maryam; Pourfarzad, Zahra; Shirani, Farimah; Safazadeh, Shima; Ziyaei, Marziyeh; Varzeshnejad, Maryam; Hashemi, Maryam; Taleghani, Fariba

2016-05-01

This article is a report of an analysis of the concept of dying with dignity. Dignity is an important component of providing care for dying patients and their families. Nevertheless, given that this concept is poorly defined, concept analysis is one of the best ways to define and clarify the concept of death with dignity with the aim to enhance its application in clinical practice, research and education. A search of multiple nursing and social sciences databases was undertaken, including Academic Search Complete, Science Direct, ProQuest, Scopus, Medline, PubMed, EBSCO, Ovid, Noormage, Cinahl, Magiran, PsycINFO and SID. After an extensive review of the literature from 1998-2014, about 14 related articles were included in the study. Based on these articles, the applications, attributes and experimental results of and references to death with dignity were recorded. Based on this analysis, the most important attributes of this concept included respect for privacy, respect, spiritual peace and hope. The antecedents of this concept included consideration of moral values during caregiving, preservation of human dignity as a patient right and professional ethics, and belief in the dignity of self and others, consideration of culture in providing end-of-life care. The consequences of this concept included a sense of peace in the patient and their family, peaceful death and provision of patient privacy and comfort. The concept of patient dignity has been referred to in many contexts. However, considering the dignity of dying patients commensurate with their culture is the most important component of care provided by nurses to facilitate a peaceful death. Respecting the dignity of the patient results in the reduction of her/his suffering and prepares her/him for a comfortable death. © 2016 John Wiley & Sons Ltd.

Concept Empiricism: A Methodological Critique

ERIC Educational Resources Information Center

Machery, Edouard

2007-01-01

Thanks to Barsalou's, Damasio's, Glenberg's, Prinz' and others' work, neo-empiricism is gaining a deserved recognition in the psychology and philosophy of concepts. I argue, however, that neo-empiricists have underestimated the difficulty of providing evidence against the amodal approach to concepts and higher cognition. I highlight three key…

A Chemistry Concept Reasoning Test

ERIC Educational Resources Information Center

Cloonan, Carrie A.; Hutchinson, John S.

2011-01-01

A Chemistry Concept Reasoning Test was created and validated providing an easy-to-use tool for measuring conceptual understanding and critical scientific thinking of general chemistry models and theories. The test is designed to measure concept understanding comparable to that found in free-response questions requiring explanations over…

Best Practices for Administering Concept Inventories

NASA Astrophysics Data System (ADS)

Madsen, Adrian; McKagan, Sarah B.; Sayre, Eleanor C.

2017-12-01

There is a plethora of concept inventories available for faculty to use, but it is not always clear exactly why you would use these tests, or how you should administer them and interpret the results. These research-based tests about physics and astronomy concepts are valuable because they allow for standardized comparisons among institutions, instructors, or over time. In order for these comparisons to be meaningful, you should use best practices for administering the tests. In interviews with 24 physics faculty, we have identified common questions that faculty members have about concept inventories. We have written this article to address common questions from these interviews and provide a summary of best practices for administering concept inventories.

Undergraduate students' initial conceptions of factorials

NASA Astrophysics Data System (ADS)

Lockwood, Elise; Erickson, Sarah

2017-05-01

Counting problems offer rich opportunities for students to engage in mathematical thinking, but they can be difficult for students to solve. In this paper, we present a study that examines student thinking about one concept within counting, factorials, which are a key aspect of many combinatorial ideas. In an effort to better understand students' conceptions of factorials, we conducted interviews with 20 undergraduate students. We present a key distinction between computational versus combinatorial conceptions, and we explore three aspects of data that shed light on students' conceptions (their initial characterizations, their definitions of 0!, and their responses to Likert-response questions). We present implications this may have for mathematics educators both within and separate from combinatorics.

A Network Analysis of Concept Maps of Triangle Concepts

ERIC Educational Resources Information Center

Haiyue, Jin; Khoon Yoong, Wong

2010-01-01

Mathematics educators and mathematics standards of curriculum have emphasised the importance of constructing the interconnectedness among mathematic concepts ("conceptual understanding") instead of only the ability to carry out standard procedures in an isolated fashion. Researchers have attempted to assess the knowledge networks in…

Threshold concepts in finance: student perspectives

NASA Astrophysics Data System (ADS)

Hoadley, Susan; Kyng, Tim; Tickle, Leonie; Wood, Leigh N.

2015-10-01

Finance threshold concepts are the essential conceptual knowledge that underpin well-developed financial capabilities and are central to the mastery of finance. In this paper we investigate threshold concepts in finance from the point of view of students, by establishing the extent to which students are aware of threshold concepts identified by finance academics. In addition, we investigate the potential of a framework of different types of knowledge to differentiate the delivery of the finance curriculum and the role of modelling in finance. Our purpose is to identify ways to improve curriculum design and delivery, leading to better student outcomes. Whilst we find that there is significant overlap between what students identify as important in finance and the threshold concepts identified by academics, much of this overlap is expressed by indirect reference to the concepts. Further, whilst different types of knowledge are apparent in the student data, there is evidence that students do not necessarily distinguish conceptual from other types of knowledge. As well as investigating the finance curriculum, the research demonstrates the use of threshold concepts to compare and contrast student and academic perceptions of a discipline and, as such, is of interest to researchers in education and other disciplines.

Research on the comparison of performance-based concept and force-based concept

NASA Astrophysics Data System (ADS)

Wu, Zeyu; Wang, Dongwei

2011-03-01

There are two ideologies about structure design: force-based concept and performance-based concept. Generally, if the structure operates during elastic stage, the two philosophies usually attain the same results. But beyond that stage, the shortage of force-based method is exposed, and the merit of performance-based is displayed. Pros and cons of each strategy are listed herein, and then which structure is best suitable to each method analyzed. At last, a real structure is evaluated by adaptive pushover method to verify that performance-based method is better than force-based method.

Perinatal Bereavement: A Principle-based Concept Analysis

PubMed Central

FENSTERMACHER, Kimberly; HUPCEY, Judith E.

2013-01-01

Aim This paper is a report of an analysis of the concept of perinatal bereavement. Background The concept of perinatal bereavement emerged in the scientific literature during the 1970s. Perinatal bereavement is a practice based concept, although it is not well defined in the scientific literature and is often intermingled with the concepts of mourning and grief. Design Concept Analysis. Data Sources Using the term ‘perinatal bereavement’ and limits of only English and human, Pub Med and CINAHL were searched to yield 278 available references dating from 1974 – 2011. Articles specific to the experience of perinatal bereavement were reviewed. The final data set was 143 articles. Review Methods The methods of principle-based concept analysis were used. Results reveal conceptual components (antecedents, attributes and outcomes) which are delineated to create a theoretical definition of perinatal bereavement. Results The concept is epistemologically immature, with few explicit definitions to describe the phenomenon. Inconsistency in conceptual meaning threatens the construct validity of measurement tools for perinatal bereavement and contributes to incongruent theoretical definitions. This has implications for both nursing science (how the concept is studied and theoretically integrated) and clinical practice (timing and delivery of support interventions). Conclusions Perinatal bereavement is a multifaceted global phenomenon that follows perinatal loss. Lack of conceptual clarity and lack of a clearly articulated conceptual definition impede the synthesis and translation of research findings into practice. A theoretical definition of perinatal bereavement is offered as a platform for researchers to advance the concept through research and theory development. PMID:23458030

Advanced Concept

NASA Image and Video Library

2008-02-15

Shown is a concept illustration of the Ares I crew launch vehicle, left, and Ares V cargo launch vehicle. Ares I will carry the Orion Crew Exploration Vehicle to space. Ares V will serve as NASA's primary vehicle for delivery of large-scale hardware to space.

Identifying and Overcoming Threshold Concepts and Conceptions: Introducing a Conception-Focused Curriculum to Course Design

ERIC Educational Resources Information Center

Burch, Gerald F.; Burch, Jana J.; Bradley, Thomas P.; Heller, Nathan A.

2015-01-01

Educators have been challenged to identify threshold concepts and develop transformed students. This stands in stark contrast to many curriculum design and delivery models that currently view students as repositories of knowledge. In this article, we argue that educators can reach both goals, identify stumbling blocks and transforming students,…

The Concept of Curriculum Design.

ERIC Educational Resources Information Center

Barrow, Robin

This paper approaches the concept of curriculum design from a philosophical perspective, arguing that the concept of "design" in curriculum is fundamentally misleading. The paper begins with a series of comments questioning the assumption that curriculum design involves a set of discrete skills or procedures in which one may attain expertise, like…

32 CFR 989.2 - Concept.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 32 National Defense 6 2010-07-01 2010-07-01 false Concept. 989.2 Section 989.2 National Defense Department of Defense (Continued) DEPARTMENT OF THE AIR FORCE ENVIRONMENTAL PROTECTION ENVIRONMENTAL IMPACT ANALYSIS PROCESS (EIAP) § 989.2 Concept. (a) This part provides a framework on how to comply with NEPA and...

Developing the Concept of Metalearning

ERIC Educational Resources Information Center

Jackson, Norman

2004-01-01

The idea of metalearning was originally used by John Biggs (1985) to describe the state of 'being aware of and taking control of one's own learning'. This paper explores the concept through collaborative enquiry involving researchers and higher education teachers. An evolved conception is proposed in which metalearning is a subconcept within…

Children's Death Concepts and Ethnicity.

ERIC Educational Resources Information Center

Wass, Hannelore; Towry, Betty J.

1980-01-01

Relationships between death concepts of Black and White children and their racial status were examined. Lower-middle-class elementary children completed a four-item questionnaire on death. Most children defined death as the end of living and listed physical causes as the explanation of death. In general, children's death concepts were similar.…

Student Conceptions of Oral Presentations

ERIC Educational Resources Information Center

Joughin, Gordon

2007-01-01

A phonographic study of students' experience of oral presentations in an open learning theology programme constituted three contrasting conceptions of oral presentations--as transmission of ideas; as a test of students' understanding of what they were studying; and as a position to be argued. Each of these conceptions represented a combination of…

Developing an Action Concept Inventory

ERIC Educational Resources Information Center

McGinness, Lachlan P.; Savage, C. M.

2016-01-01

We report on progress towards the development of an Action Concept Inventory (ACI), a test that measures student understanding of action principles in introductory mechanics and optics. The ACI also covers key concepts of many-paths quantum mechanics, from which classical action physics arises. We used a multistage iterative development cycle for…

Self-concept, self-esteem and psychopathological symptoms.

PubMed

Garaigordobil, Maite; Pérez, José Ignacio; Mozaz, María

2008-02-01

This study has two objectives: 1) to analyse the characteristics of self-concept, self-esteem and psychopathological symptoms in accordance with age and gender in a representative sample from the Basque Country; and 2) to explore the relationships of self-concept and self-esteem with psychopathological symptoms. The sample is made up of 1,579 participants, aged 12 to 65, of whom 732 are males (46.4%) and 847 are females (53.6%). The study uses a descriptive and correlational methodology. For the measurement of psychopathological symptoms, self-concept and self-esteem, three assessment instruments are applied. The ANOVAs indicated significant differences associated with age in self-concept, self-esteem, and quantity of psychopathological symptoms. As regards gender, no significant differences were found for self-concept and self-esteem, but there were differences in psychopathological symptoms, with females scoring higher in various disorders (somatization, interpersonal sensitivity, depression, anxiety, phobic anxiety, and total quantity of symptoms). The results of the correlational analyses confirmed significant inverse relationships between self-concept/self-esteem and psychopathological symptoms. The discussion considers the potential role of intervention programmes that promote self-concept and self-esteem in the prevention of psychopathological problems.

Concept Analysis of Spirituality: An Evolutionary Approach.

PubMed

Weathers, Elizabeth; McCarthy, Geraldine; Coffey, Alice

2016-04-01

The aim of this article is to clarify the concept of spirituality for future nursing research. Previous concept analyses of spirituality have mostly reviewed the conceptual literature with little consideration of the empirical literature. The literature reviewed in prior concept analyses extends from 1972 to 2005, with no analysis conducted in the past 9 years. Rodgers' evolutionary framework was used to review both the theoretical and empirical literature pertaining to spirituality. Evolutionary concept analysis is a formal method of philosophical inquiry, in which papers are analyzed to identify attributes, antecedents, and consequences of the concept. Empirical and conceptual literature. Three defining attributes of spirituality were identified: connectedness, transcendence, and meaning in life. A conceptual definition of spirituality was proposed based on the findings. Also, four antecedents and five primary consequences of spirituality were identified. Spirituality is a complex concept. This concept analysis adds some clarification by proposing a definition of spirituality that is underpinned by both conceptual and empirical research. Furthermore, exemplars of spirituality, based on prior qualitative research, are presented to support the findings. Hence, the findings of this analysis could guide future nursing research on spirituality. © 2015 Wiley Periodicals, Inc.

The Musical Self-Concept of Chinese Music Students.

PubMed

Petersen, Suse; Camp, Marc-Antoine

2016-01-01

The relationship between self-concept and societal settings has been widely investigated in several Western and Asian countries, with respect to the academic self-concept in an educational environment. Although the musical self-concept is highly relevant to musical development and performance, there is a lack of research exploring how the musical self-concept evolves in different cultural settings and societies. In particular, there have been no enquiries yet in the Chinese music education environment. This study's goal was the characterization of musical self-concept types among music students at a University in Beijing, China. The Musical Self-Concept Inquiry-including ability, emotional, physical, cognitive, and social facets-was used to assess the students' musical self-concepts (N = 97). The data analysis led to three significantly distinct clusters and corresponding musical self-concept types. The types were especially distinct, in the students' perception of their musical ambitions and abilities; their movement, rhythm and dancing affinity; and the spiritual and social aspects of music. The professional aims and perspectives, and the aspects of the students' sociodemographic background also differed between the clusters. This study is one of the first research endeavors addressing musical self-concepts in China. The empirical identification of the self-concept types offers a basis for future research on the connections between education, the development of musical achievement, and the musical self-concept in societal settings with differing understandings of the self.

The Musical Self-Concept of Chinese Music Students

PubMed Central

Petersen, Suse; Camp, Marc-Antoine

2016-01-01

The relationship between self-concept and societal settings has been widely investigated in several Western and Asian countries, with respect to the academic self-concept in an educational environment. Although the musical self-concept is highly relevant to musical development and performance, there is a lack of research exploring how the musical self-concept evolves in different cultural settings and societies. In particular, there have been no enquiries yet in the Chinese music education environment. This study’s goal was the characterization of musical self-concept types among music students at a University in Beijing, China. The Musical Self-Concept Inquiry—including ability, emotional, physical, cognitive, and social facets—was used to assess the students’ musical self-concepts (N = 97). The data analysis led to three significantly distinct clusters and corresponding musical self-concept types. The types were especially distinct, in the students’ perception of their musical ambitions and abilities; their movement, rhythm and dancing affinity; and the spiritual and social aspects of music. The professional aims and perspectives, and the aspects of the students’ sociodemographic background also differed between the clusters. This study is one of the first research endeavors addressing musical self-concepts in China. The empirical identification of the self-concept types offers a basis for future research on the connections between education, the development of musical achievement, and the musical self-concept in societal settings with differing understandings of the self. PMID:27303337

Investigating Elementary Teachers' Conceptions of Animal Classification

ERIC Educational Resources Information Center

Burgoon, Jacob N.; Duran, Emilio

2012-01-01

Numerous studies have been conducted regarding alternative conceptions about animal diversity and classification, many of which have used a cross-age approach to investigate how students' conceptions change over time. None of these studies, however, have investigated teachers' conceptions of animal classification. This study was intended to…

Words and Concepts. What Works Clearinghouse Intervention Report

ERIC Educational Resources Information Center

What Works Clearinghouse, 2007

2007-01-01

"Words and Concepts" is a computer software program that focuses on building oral language skills related to vocabulary, comprehension, word relationships, and other concepts in six units--vocabulary, categorization, word identification by function, word association, concept of same, and concept of different. It can be used by adults and…

Advanced Concept

NASA Image and Video Library

2008-03-15

Shown is an illustration of the Ares I concept. The first stage will be a single, five-segment solid rocket booster derived from the space shuttle programs reusable solid rocket motor. The first stage is managed by NASA's Marshall Space Flight Center in Huntsville, Alabama for NASA's Constellation program.

Damage control: Concept and implementation.

PubMed

Malgras, B; Prunet, B; Lesaffre, X; Boddaert, G; Travers, S; Cungi, P-J; Hornez, E; Barbier, O; Lefort, H; Beaume, S; Bignand, M; Cotte, J; Esnault, P; Daban, J-L; Bordes, J; Meaudre, E; Tourtier, J-P; Gaujoux, S; Bonnet, S

2017-12-01

The concept of damage control (DC) is based on a sequential therapeutic strategy that favors physiological restoration over anatomical repair in patients presenting acutely with hemorrhagic trauma. Initially described as damage control surgery (DCS) for war-wounded patients with abdominal penetrating hemorrhagic trauma, this concept is articulated in three steps: surgical control of lesions (hemostasis, sealing of intestinal spillage), physiological restoration, then surgery for definitive repair. This concept was quickly adapted for intensive care management under the name damage control resuscitation (DCR), which refers to the modalities of hospital resuscitation carried out in patients suffering from traumatic hemorrhagic shock within the context of DCS. It is based mainly on specific hemodynamic resuscitation targets associated with early and aggressive hemostasis aimed at prevention or correction of the lethal triad of hypothermia, acidosis and coagulation disorders. Concomitant integration of resuscitation and surgery from the moment of admission has led to the concept of an integrated DCR-DCS approach, which enables initiation of hemostatic resuscitation upon arrival of the injured person, improving the patient's physiological status during surgery without delaying surgery. This concept of DC is constantly evolving; it stresses management of the injured person as early as possible, in order to initiate hemorrhage control and hemostatic resuscitation as soon as possible, evolving into a concept of remote DCR (RDCR), and also extended to diagnostic and therapeutic radiological management under the name of radiological DC (DCRad). DCS is applied only to the most seriously traumatized patients, or in situations of massive influx of injured persons, as its universal application could lead to a significant and unnecessary excess-morbidity to injured patients who could and should undergo definitive treatment from the outset. DCS, when correctly applied

Fijian Teachers' Conceptions of Assessment

ERIC Educational Resources Information Center

Dayal, Hem Chand; Lingam, Govinda Ishwar

2015-01-01

Teacher's conceptions are important as they could have a strong influence on their professional practices. This study set out to explore Fijian teacher's conceptions of assessment. Seventy teachers enrolled in an assessment course at a university in Fiji were involved in this study. Data was collected by asking teachers to write a reflection on…

The Concept of Career Education.

ERIC Educational Resources Information Center

Jesser, David L.

Prepared as a part of the Career Education Project of the Council of Chief State School Officers (CCSSO), the paper reviews the varying definitions of the term "career education" and describes the evolution of the concept, schema, and models. Evidence of acceptance and support of the career education concept by education agencies is examined.…

10 CFR 60.102 - Concepts.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 10 Energy 2 2011-01-01 2011-01-01 false Concepts. 60.102 Section 60.102 Energy NUCLEAR REGULATORY... § 60.102 Concepts. This section provides a functional overview of subpart E. In the event of any... (4) of the Energy Reorganization Act of 1974. Any of these facilities is designated a HLW facility...

Communication, concepts and grounding.

PubMed

van der Velde, Frank

2015-02-01

This article discusses the relation between communication and conceptual grounding. In the brain, neurons, circuits and brain areas are involved in the representation of a concept, grounding it in perception and action. In terms of grounding we can distinguish between communication within the brain and communication between humans or between humans and machines. In the first form of communication, a concept is activated by sensory input. Due to grounding, the information provided by this communication is not just determined by the sensory input but also by the outgoing connection structure of the conceptual representation, which is based on previous experiences and actions. The second form of communication, that between humans or between humans and machines, is influenced by the first form. In particular, a more successful interpersonal communication might require forms of situated cognition and interaction in which the entire representations of grounded concepts are involved. Copyright © 2014 Elsevier Ltd. All rights reserved.

Basic concepts of depression

PubMed Central

Paykel, Eugene S.

2008-01-01

This paper reviews concepts of depression, including history and classification. The original broad concept of melancholia included all forms of quiet insanity. The term depression began to appear in the nineteenth century as did the modern concept of affective disorders, with the core disturbance now viewed as one of mood. The 1930s saw the introduction of defined criteria into official diagnostic schemes. The modern separation into unipolar and bipolar disorder was introduced following empirical research by Angst and Perris in the 1960s. The partially overlapping distinctions between psychotic and neurotic depression, and between endogenous and reactive depression, started to generate debate in the 1920s, with considerable multivariate research in the 1960s. The symptom element in endogenous depression currently survives in melancholia or somatic syndrome. Life stress is common in various depressive pictures. Dysthymia, a valuable diagnosis, represents a form of what was regarded earlier as neurotic depression. Other subtypes are also discussed. PMID:18979941

ASSOCIATIVE CONCEPT LEARNING IN ANIMALS

PubMed Central

Zentall, Thomas R.; Wasserman, Edward A.; Urcuioli, Peter J.

2014-01-01

Nonhuman animals show evidence for three types of concept learning: perceptual or similarity-based in which objects/stimuli are categorized based on physical similarity; relational in which one object/stimulus is categorized relative to another (e.g., same/different); and associative in which arbitrary stimuli become interchangeable with one another by virtue of a common association with another stimulus, outcome, or response. In this article, we focus on various methods for establishing associative concepts in nonhuman animals and evaluate data documenting the development of associative classes of stimuli. We also examine the nature of the common within-class representation of samples that have been associated with the same reinforced comparison response (i.e., many-to-one matching) by describing manipulations for distinguishing possible representations. Associative concepts provide one foundation for human language such that spoken and written words and the objects they represent become members of a class of interchangeable stimuli. The mechanisms of associative concept learning and the behavioral flexibility it allows, however, are also evident in the adaptive behaviors of animals lacking language. PMID:24170540

Neural Representations of Physics Concepts.

PubMed

Mason, Robert A; Just, Marcel Adam

2016-06-01

We used functional MRI (fMRI) to assess neural representations of physics concepts (momentum, energy, etc.) in juniors, seniors, and graduate students majoring in physics or engineering. Our goal was to identify the underlying neural dimensions of these representations. Using factor analysis to reduce the number of dimensions of activation, we obtained four physics-related factors that were mapped to sets of voxels. The four factors were interpretable as causal motion visualization, periodicity, algebraic form, and energy flow. The individual concepts were identifiable from their fMRI signatures with a mean rank accuracy of .75 using a machine-learning (multivoxel) classifier. Furthermore, there was commonality in participants' neural representation of physics; a classifier trained on data from all but one participant identified the concepts in the left-out participant (mean accuracy = .71 across all nine participant samples). The findings indicate that abstract scientific concepts acquired in an educational setting evoke activation patterns that are identifiable and common, indicating that science education builds abstract knowledge using inherent, repurposed brain systems. © The Author(s) 2016.

Physical Concepts and Mathematical Symbols

NASA Astrophysics Data System (ADS)

Grelland, Hans Herlof

2007-12-01

According to traditional empiricist philosophy of science, concepts and meaning grow out of sense experience, and the mathematical structure of a physical theory is nothing but a formalisation of a given meaning-content. This view seems to work well in classical mechanics. But it breaks down in quantum physics, where we have a self-supported mathematical structure which resists any conceptual or pictorial interpretation in the traditional sense. Thus, traditional empiricism is flawed. Quantum physics teaches us that mathematics is a language in itself which extends beyond ordinary language. To understand the meaning of this extended language, we have to explore how new concepts and intuitions grow out of mathematics, not the other way around. The symbolic structure is prior to its meaning. This point of view is called linguistic empiricism, to stress that the connection with experience is still crucial. As cases, I compare the concept of stiffness in classical mechanics and the concept of electron density in quantum mechanics. The last case demonstrates that the wave function has a richer interpretation than the probabilistic one concerning measurement of position.

Pregnancy-related anxiety: A concept analysis.

PubMed

Bayrampour, Hamideh; Ali, Elena; McNeil, Deborah A; Benzies, Karen; MacQueen, Glenda; Tough, Suzanne

2016-03-01

Evidence suggests that pregnancy-related anxiety is more strongly associated with maternal and child outcomes than general anxiety and depression are and that pregnancy-related anxiety may constitute a distinct concept. However, because of its poor conceptualization, the measurement and assessment of pregnancy-related anxiety have been limited. Efforts to analyze this concept can significantly contribute to its theoretical development. The first objective of this paper was to clarify the concept of pregnancy-related anxiety and identify its characteristics and dimensions. The second aim was to examine the items of current pregnancy-related anxiety measures to determine the dimensions and attributes that each scale addresses, noting any gaps between the current assessment and the construct of the concept. A concept analysis was conducted to examine the concept of pregnancy-related anxiety. To obtain the relevant evidence, several databases were searched including MEDLINE, PsycINFO, EBSCO's SocINDEX, Psychological and Behavioral Sciences Collection, CINAHL, SCOPUS, and EMBASE. A modified approach based on Walker and Avant (Strategies for theory construction in nursing. 5th ed; 2011) was used. Qualitative or quantitative studies published in English that explored or examined anxiety during pregnancy or its dimensions prospectively or retrospectively were included. Thirty eight studies provided data for the concept analysis. Three critical attributes (i.e., affective responses, cognitions, and somatic symptoms), three antecedents (i.e., a real or anticipated threat to pregnancy or its outcomes, low perceived control, and excessive cognitive activity, and four consequences (i.e., negative attitudes, difficulty concentrating, excessive reassurance-seeking behavior, and avoidance behaviors) were identified. Nine dimensions for pregnancy-related anxiety were determined, and a definition of the concept was proposed. The most frequently reported dimensions included anxiety

Evolving Ethical Concepts

ERIC Educational Resources Information Center

Potter, Van Rensselaer

1977-01-01

Discusses the role of the scientist in changing ethical concepts from simple interpersonal and theological imperatives towards "survival imperatives that must form the core of environmental bioethics." (CS)

Architecture is Elementary: Visual Thinking through Architectural Concepts.

ERIC Educational Resources Information Center

Winters, Nathan B.

This book presents very basic but important concepts about architecture and outlines some of the most important concepts used by great architects. These concepts are taught at levels of perceptual maturity applicable to adults and children alike and progress from levels one through seven as the concepts become progressively intertwined. The…

Nursing professionalism: An evolutionary concept analysis

PubMed Central

Ghadirian, Fataneh; Salsali, Mahvash; Cheraghi, Mohammad Ali

2014-01-01

Background: Professionalism is an important feature of the professional jobs. Dynamic nature and the various interpretations of this term lead to multiple definitions of this concept. The aim of this paper is to identify the core attributes of the nursing professionalism. Materials and Methods: We followed Rodgers’ evolutionary method of concept analysis. Texts published in scientific databases about nursing professionalism between 1980 and 2011 were assessed. After applying the selection criteria, the final sample consisting of 4 books and 213 articles was selected, examined, and analyzed in depth. Two experts checked the process of analysis and monitored and reviewed them. Results: The analysis showed that nursing professionalism is determined by three attributes of cognitive, attitudinal, and psychomotor. In addition, the most important antecedents concepts were demographic, experiential, educational, environmental, and attitudinal factors. Conclusion: Nursing professionalism is an inevitable, complex, varied, and dynamic process. In this study, the importance, scope, and concept of professionalism in nursing, the concept of a beginning for further research and development, and expanding the nursing knowledge are explained and clarified. PMID:24554953

Relativity Concept Inventory: Development, Analysis, and Results

ERIC Educational Resources Information Center

Aslanides, J. S.; Savage, C. M.

2013-01-01

We report on a concept inventory for special relativity: the development process, data analysis methods, and results from an introductory relativity class. The Relativity Concept Inventory tests understanding of relativistic concepts. An unusual feature is confidence testing for each question. This can provide additional information; for example,…

Concept analysis of culture applied to nursing.

PubMed

Marzilli, Colleen

2014-01-01

Culture is an important concept, especially when applied to nursing. A concept analysis of culture is essential to understanding the meaning of the word. This article applies Rodgers' (2000) concept analysis template and provides a definition of the word culture as it applies to nursing practice. This article supplies examples of the concept of culture to aid the reader in understanding its application to nursing and includes a case study demonstrating components of culture that must be respected and included when providing health care.

Exploring the Concept of HIV-Related Stigma

PubMed Central

Florom-Smith, Aubrey L.; De Santis, Joseph P.

2013-01-01

BACKGROUND HIV infection is a chronic, manageable illness. Despite advances in the care and treatment of people living with HIV infection, HIV-related stigma remains a challenge to HIV testing, care, and prevention. Numerous studies have documented the impact of HIV-related stigma among various groups of people living with HIV infection, but the concept of HIV-related stigma remains unclear. PURPOSE Concept exploration of HIV-related stigma via an integrative literature review was conducted in order to examine the existing knowledge base of this concept. METHODS Search engines were employed to review the existing knowledge base of this concept. CONCLUSION After the integrative literature review, an analysis of HIV-related stigma emerged. Implications for future concept analysis, research, and practice are included. PMID:22861652

A brain-based account of "basic-level" concepts.

PubMed

Bauer, Andrew James; Just, Marcel Adam

2017-11-01

This study provides a brain-based account of how object concepts at an intermediate (basic) level of specificity are represented, offering an enriched view of what it means for a concept to be a basic-level concept, a research topic pioneered by Rosch and others (Rosch et al., 1976). Applying machine learning techniques to fMRI data, it was possible to determine the semantic content encoded in the neural representations of object concepts at basic and subordinate levels of abstraction. The representation of basic-level concepts (e.g. bird) was spatially broad, encompassing sensorimotor brain areas that encode concrete object properties, and also language and heteromodal integrative areas that encode abstract semantic content. The representation of subordinate-level concepts (robin) was less widely distributed, concentrated in perceptual areas that underlie concrete content. Furthermore, basic-level concepts were representative of their subordinates in that they were neurally similar to their typical but not atypical subordinates (bird was neurally similar to robin but not woodpecker). The findings provide a brain-based account of the advantages that basic-level concepts enjoy in everyday life over subordinate-level concepts: the basic level is a broad topographical representation that encompasses both concrete and abstract semantic content, reflecting the multifaceted yet intuitive meaning of basic-level concepts. Copyright © 2017 Elsevier Inc. All rights reserved.

Reducing the Mismatch of Geometry Concept Definitions and Concept Images Held by Pre-Service Teachers

ERIC Educational Resources Information Center

Cunningham, Robert F.; Roberts, Allison

2010-01-01

Twenty-three female elementary pre-service teachers were assessed on their ability to answer questions involving geometry concepts. Despite being given the definitions of the altitude of a triangle and the diagonal of a polygon on the pretest, limited understanding of these concepts was evident. A treatment using both graphic organizer and concept…

The Contribution of Conceptual Change Texts Accompanied by Concept Mapping to Eleventh-Grade Students Understanding of Cellular Respiration Concepts

ERIC Educational Resources Information Center

Al khawaldeh, Salem A.; Al Olaimat, Ali M.

2010-01-01

The present study conducted to investigate the contribution of conceptual change texts, accompanied by concept mapping instruction to eleventh-grade students' understanding of cellular respiration concepts, and their retention of this understanding. Cellular respiration concepts test was developed as a result of examination of related literature…

Enroute flight planning: Evaluating design concepts for the development of cooperative problem-solving concepts

NASA Technical Reports Server (NTRS)

Smith, Philip J.; Mccoy, C. Elaine

1991-01-01

The goals of this research were to develop design concepts to support the task of enroute flight planning. And within this context, to explore and evaluate general design concepts and principles to guide the development of cooperative problem solving systems. A detailed model is to be developed of the cognitive processes involved in flight planning. Included in this model will be the identification of individual differences of subjects. Of particular interest will be differences between pilots and dispatchers. The effect will be studied of the effect on performance of tools that support planning at different levels of abstraction. In order to conduct this research, the Flight Planning Testbed (FPT) was developed, a fully functional testbed environment for studying advanced design concepts for tools to aid in flight planning.

AquaSimian Poster Artist Concept

NASA Image and Video Library

2015-03-11

This artist's rendering shows a concept for a robot called AquaSimian that would assist with hazardous situations underwater. The concept is derived from RoboSimian, a land-based robot designed and built at the Jet Propulsion Laboratory in Pasadena, California. RoboSimian is shown in PIA19313. http://photojournal.jpl.nasa.gov/catalog/PIA19315

Self-Concept: An Operational Model for Educators.

ERIC Educational Resources Information Center

Obiakor, Festus

This document begins by discussing the important role self-concept plays in a student's academic achievement, social adjustment, and physical capability. A perceptual notion of self-concept is defined as awareness through senses. An operational notion of self-concept is defined as self-descriptive behaviors. Literature is reviewed which defines…

Boehm Test of Basic Concepts-Revised. Review.

ERIC Educational Resources Information Center

Padula, Janice

1988-01-01

The manual for the Boehm Test of Basic Concepts-Revised (1986) is reviewed. The test measures a child's knowledge of relational concepts. The revised version, eliminating some imperfections of the original, will continue to be a useful test of verbal concept acquisition. Cautions necessary while using the test are discussed. (SLD)

Fundamental Concepts Bridging Education and the Brain

ERIC Educational Resources Information Center

Masson, Steve; Foisy, Lorie-Marlène Brault

2014-01-01

Although a number of papers have already discussed the relevance of brain research for education, the fundamental concepts and discoveries connecting education and the brain have not been systematically reviewed yet. In this paper, four of these concepts are presented and evidence concerning each one is reviewed. First, the concept of…

Advanced Concept

NASA Image and Video Library

1997-01-02

The Advanced Space Transportation Group takes the future of space travel far into the 21st Century. Pictured is an artist's concept of a third generation Reusable Launch Vehicle (RLV). Projected for the year 2025, this third generation RLV will introduce an era of space travel not unlike air travel today.

Linked Forests: Semantic similarity of geographical concepts "forest"

NASA Astrophysics Data System (ADS)

Čerba, Otakar; Jedlička, Karel

2016-01-01

Linked Data represents the new trend in geoinformatics and geomatics. It produces a structure of objects (in a form of concepts or terms) interconnected by object relations expressing a type of semantic relationships of various concepts. The research published in this article studies, if objects connected by above mentioned relations are more similar than objects representing the same phenomenon, but standing alone. The phenomenon "forest" and relevant geographical concepts were chosen as the domain of the research. The concepts similarity (Tanimoto coefficient as a specification of Tversky index) was computed on the basis of explicit information provided by thesauri containing particular concepts. Overall in the seven thesauri (AGROVOC, EuroVoc, GEMET, LusTRE/EARTh, NAL, OECD and STW) there was tested if the "forest" concept interconnected by the relation skos:exactMatch are more similar than other, not interlinked concepts. The results of the research are important for the sharing and combining of geographical data, information and knowledge. The proposed methodology can be reused to a comparison of other geographical concepts.

An Integrated Model of Academic Self-Concept Development: Academic Self-Concept, Grades, Test Scores, and Tracking over 6 Years

ERIC Educational Resources Information Center

Marsh, Herbert W.; Pekrun, Reinhard; Murayama, Kou; Arens, A. Katrin; Parker, Philip D.; Guo, Jiesi; Dicke, Theresa

2018-01-01

Our newly proposed integrated academic self-concept model integrates 3 major theories of academic self-concept formation and developmental perspectives into a unified conceptual and methodological framework. Relations among math self-concept (MSC), school grades, test scores, and school-level contextual effects over 6 years, from the end of…

Nanotechnology Concepts at MSFC: Engineering Directorate

NASA Technical Reports Server (NTRS)

Bhat, Biliyar; Kaul, Raj; Shah, Sandeep; Smithers, Gweneth; Watson, Michael D.

2000-01-01

Nanotechnology is the art and science of building materials and devices at the ultimate level of finesse: atom by atom. Our nation's space program has needs for miniaturization of components, minimization of weight and maximization of performance, and nanotechnology will help us get there. MSFC - Engineering Directorate (ED) is committed to developing nanotechnology that will enable MSFC missions in space transportation, space science and space optics manufacturing. MSFC-ED has a dedicated group of technologists who are currently developing high pay-off nanotechnology concepts. This poster presentation will outline some of the concepts being developed at this time including, nanophase structural materials, carbon nanotube reinforced metal and polymer matrix composites, nanotube temperature sensors and aerogels. The poster will outline these concepts and discuss associated technical challenges in turning these concepts into real components and systems.

Hierarchical and Multidimensional Academic Self-Concept of Commercial Students.

PubMed

Yeung; Chui; Lau

1999-10-01

Adapting the Marsh (1990) Academic Self-Description Questionnaire (ASDQ), this study examined the academic self-concept of students in a school of commerce in Hong Kong (N = 212). Confirmatory factor analysis found that students clearly distinguished among self-concept constructs in English, Chinese, Math and Statistics, Economics, and Principles of Accounting, and each of these constructs was highly associated with a global Academic self-concept construct, reflecting the validity of each construct in measuring an academic component of self-concept. Domain-specific self-concepts were more highly related with students' intention of course selection in corresponding areas than in nonmatching areas, further supporting the multidimensionality of the students' academic self-concept. Students' self-concepts in the five curriculum domains can be represented by the global Academic self-concept, supporting the hierarchical structure of students' academic self-concept in an educational institution with a specific focus, such as commercial studies. The academic self-concepts of the commercial students are both multidimensional and hierarchical. Copyright 1999 Academic Press.

Unified Technical Concepts. Module 12: Time Constants.

ERIC Educational Resources Information Center

Technical Education Research Center, Waco, TX.

This concept module on time constants is one of thirteen modules that provide a flexible, laboratory-based physics instructional package designed to meet the specialized needs of students in two-year, postsecondary technical schools. Each of the thirteen concept modules discusses a single physics concept and how it is applied to each energy…

Unified Technical Concepts. Module 9: Energy Convertors.

ERIC Educational Resources Information Center

Technical Education Research Center, Waco, TX.

This concept module on energy convertors is one of thirteen modules that provide a flexible, laboratory-based physics instructional package designed to meet the specialized needs of students in two-year, postsecondary technical schools. Each of the thirteen concept modules discusses a single physics concept and how it is applied to each energy…

Unified Technical Concepts. Module 8: Force Transformers.

ERIC Educational Resources Information Center

Technical Education Research Center, Waco, TX.

This concept module on force transformers is one of thirteen modules that provide a flexible, laboratory-based physics instructional package designed to meet the specialized needs of students in two-year, postsecondary technical schools. Each of the thirteen concept modules discusses a single physics concept and how it is applied to each energy…

Concept Mapping: An "Instagram" of Students' Thinking

ERIC Educational Resources Information Center

Campbell, Laurie O.

2016-01-01

Minimal research has been accumulated in the field of social studies education for Novakian concept mapping, yet there are many benefits from adding this learning tool to a teacher's instructional toolbox. The article defines Novakian concept mapping and invites readers to adopt digital Novakian concept mapping into the social studies classroom as…

Measurement of Academic Self-Concept in College Students.

ERIC Educational Resources Information Center

Reynolds, William M.; And Others

Academic self-concept has been viewed by numerous investigators as an important facet of general self-concept. The Academic Self-Concept Scale (ASCS) was developed as a measure of academic self-concept in college students. The initial item pool consisted of 59 items worded to conform to a four-pont Likert-type response format. On the basis of…

Concept Maps for Evaluating Learning of Sustainable Development

ERIC Educational Resources Information Center

Shallcross, David C.

2016-01-01

Concept maps are used to assess student and cohort learning of sustainable development. The concept maps of 732 first-year engineering students were individually analyzed to detect patterns of learning and areas that were not well understood. Students were given 20 minutes each to prepare a concept map of at least 20 concepts using paper and pen.…

A generative model for scientific concept hierarchies.

PubMed

Datta, Srayan; Adar, Eytan

2018-01-01

In many scientific disciplines, each new 'product' of research (method, finding, artifact, etc.) is often built upon previous findings-leading to extension and branching of scientific concepts over time. We aim to understand the evolution of scientific concepts by placing them in phylogenetic hierarchies where scientific keyphrases from a large, longitudinal academic corpora are used as a proxy of scientific concepts. These hierarchies exhibit various important properties, including power-law degree distribution, power-law component size distribution, existence of a giant component and less probability of extending an older concept. We present a generative model based on preferential attachment to simulate the graphical and temporal properties of these hierarchies which helps us understand the underlying process behind scientific concept evolution and may be useful in simulating and predicting scientific evolution.

A generative model for scientific concept hierarchies

PubMed Central

Adar, Eytan

2018-01-01

In many scientific disciplines, each new ‘product’ of research (method, finding, artifact, etc.) is often built upon previous findings–leading to extension and branching of scientific concepts over time. We aim to understand the evolution of scientific concepts by placing them in phylogenetic hierarchies where scientific keyphrases from a large, longitudinal academic corpora are used as a proxy of scientific concepts. These hierarchies exhibit various important properties, including power-law degree distribution, power-law component size distribution, existence of a giant component and less probability of extending an older concept. We present a generative model based on preferential attachment to simulate the graphical and temporal properties of these hierarchies which helps us understand the underlying process behind scientific concept evolution and may be useful in simulating and predicting scientific evolution. PMID:29474409

Just-in-time classifiers for recurrent concepts.

PubMed

Alippi, Cesare; Boracchi, Giacomo; Roveri, Manuel

2013-04-01

Just-in-time (JIT) classifiers operate in evolving environments by classifying instances and reacting to concept drift. In stationary conditions, a JIT classifier improves its accuracy over time by exploiting additional supervised information coming from the field. In nonstationary conditions, however, the classifier reacts as soon as concept drift is detected; the current classification setup is discarded and a suitable one activated to keep the accuracy high. We present a novel generation of JIT classifiers able to deal with recurrent concept drift by means of a practical formalization of the concept representation and the definition of a set of operators working on such representations. The concept-drift detection activity, which is crucial in promptly reacting to changes exactly when needed, is advanced by considering change-detection tests monitoring both inputs and classes distributions.

Measuring Social Studies Concept Attainment: Boys and Girls. Report from the Project on A Structure of Concept Attainment Abilities.

ERIC Educational Resources Information Center

Harris, Margaret L.; Tabachnick, B. Robert

This paper describes test development efforts for measuring achievement of selected concepts in social studies. It includes descriptive item and test statistics for the tests developed. Twelve items were developed for each of 30 concepts. Subject specialists categorized the concepts into three major areas: Geographic Region, Man and Society, and…

Toward a New Conception of Educated Person

ERIC Educational Resources Information Center

Mehrmohammadi, Mahmoud

2004-01-01

Many conceptions of the educated person have been suggested by philosophers and thinkers on education. A brief overview of a selection of these conceptions appears in the first section of this article, and sets the analytical stage for the presentation of the conception of the educated person embodied in the Theory of Question Oriented Education…

System-Oriented Runway Management Concept of Operations

NASA Technical Reports Server (NTRS)

Lohr, Gary W.; Atkins, Stephen

2015-01-01

This document describes a concept for runway management that maximizes the overall efficiency of arrival and departure operations at an airport or group of airports. Specifically, by planning airport runway configurations/usage, it focuses on the efficiency with which arrival flights reach their parking gates from their arrival fixes and departure flights exit the terminal airspace from their parking gates. In the future, the concept could be expanded to include the management of other limited airport resources. While most easily described in the context of a single airport, the concept applies equally well to a group of airports that comprise a metroplex (i.e., airports in close proximity that share resources such that operations at the airports are at least partially dependent) by including the coordination of runway usage decisions between the airports. In fact, the potential benefit of the concept is expected to be larger in future metroplex environments due to the increasing need to coordinate the operations at proximate airports to more efficiently share limited airspace resources. This concept, called System-Oriented Runway Management (SORM), is further broken down into a set of airport traffic management functions that share the principle that operational performance must be measured over the complete surface and airborne trajectories of the airport's arrivals and departures. The "system-oriented" term derives from the belief that the traffic management objective must consider the efficiency of operations over a wide range of aircraft movements and National Airspace System (NAS) dynamics. The SORM concept is comprised of three primary elements: strategic airport capacity planning, airport configuration management, and combined arrival/departure runway planning. Some aspects of the SORM concept, such as using airport configuration management1 as a mechanism for improving aircraft efficiency, are novel. Other elements (e.g., runway scheduling, which is a part

Tree decay an expanded concept

Treesearch

Alex L. Shigo

1979-01-01

This publication is the final one in a series on tree decay developed in cooperation with Harold G. Marx, Research Application Staff Assistant, U.S. Department of Agriculture, Forest Service, Washington, D.C. The purpose of this publication is to clarify further the tree decay concept that expands the classical concept to include the orderly response of the tree to...

Field resonance propulsion concept

NASA Technical Reports Server (NTRS)

Holt, A. C.

1979-01-01

A propulsion concept was developed based on a proposed resonance between coherent, pulsed electromagnetic wave forms, and gravitational wave forms (or space-time metrics). Using this concept a spacecraft propulsion system potentially capable of galactic and intergalactic travel without prohibitive travel times was designed. The propulsion system utilizes recent research associated with magnetic field line merging, hydromagnetic wave effects, free-electron lasers, laser generation of megagauss fields, and special structural and containment metals. The research required to determine potential, field resonance characteristics and to evaluate various aspects of the spacecraft propulsion design is described.

Loneliness: a concept analysis.

PubMed

Bekhet, Abir K; Zauszniewski, Jaclene A; Nakhla, Wagdy E

2008-01-01

Loneliness is a universal human experience recognized since the dawn of time, yet it is unique for every individual. Loneliness can lead to both depression and low self-esteem. This article explicates the concept of loneliness through the examination of its conceptual definition and uses, defining attributes, related concepts, and empirical referents. Literature review using hand search and database were used as sources of information. Because loneliness is commonly encountered in nursing situations, the information provided will serve as a framework for assessment, planning, intervention, and evaluation of clients.

Evaluation of advanced airship concepts

NASA Technical Reports Server (NTRS)

Joner, B. A.; Schneider, J. J.

1975-01-01

A historical overview of the airship, technical and operational characteristics of conventional and hybrid concepts, and the results of a parametric design analysis and evaluation are presented. The lift capabilities of certain buoyant fluids for a hypothetical 16 million cu.ft. volume airship are compared. The potential advanced airship concepts are surveyed, followed by a discussion of the six configurations: conventional nonrigid, conventional rigid, Deltoid (Dynairship), Guppoid (Megalifter), Helipsoid, and Heli-Stat. It is suggested that a partially buoyant Helipsoid concept of the optimum buoyancy ratio has the potential to solve the problems facing future airship development, such as Ballast and Ballast Recovery System, Full Low-Speed Controllability, Susceptibility to Wind/Gusting, Weather/Icing Constraints, Ground Handling/Hangaring, and Direct/Indirect Operating Costs.

Concept analysis: wrong-site surgery.

PubMed

Watson, Donna S

2015-06-01

A concept analysis was conducted on the concept of wrong-site surgery (WSS) using the principle-based method by Penrod and Hupcey. It included analysis of WSS within the context of epistemological, pragmatic, linguistic, and logical principles. The analysis found that WSS is an important concept that is universally accepted, but the definition could be improved with inclusion of comprehensive labeling for types of WSS that may occur, such as wrong patient, wrong site, wrong level/part, wrong procedure, and wrong side. Wrong-site surgery falls into the domains of both nursing and medicine, and there is limited research on the topic specific to nursing interventions, perceptions, and contributions to prevent WSS. Copyright © 2015 AORN, Inc. Published by Elsevier Inc. All rights reserved.

Development of the Self-Concept in Childhood.

ERIC Educational Resources Information Center

McNelly, Frederick W., Jr.

This paper presents a review of the research related to the development of self concept in both "normal" and "abnormal" children. The problems and limitations of self concept research are discussed, followed by an analysis of self concept as related to: (1) the developmental factors in childhood (with specific references to the work of S.…

Concept Maps and Language: A Turkish Experience

ERIC Educational Resources Information Center

Kilic, Gulsen Bagci

2003-01-01

Concept maps are being used by an increasing number of educators in Europe and the US. This paper has four goals. First, it discusses problems in developing Novak's style concept maps in Turkish caused by linguistic differences between Turkish and English. Second, it reports the findings of a research study conducted to adapt concept maps to…

Missed nursing care: a concept analysis.

PubMed

Kalisch, Beatrice J; Landstrom, Gay L; Hinshaw, Ada Sue

2009-07-01

This paper is a report of the analysis of the concept of missed nursing care. According to patient safety literature, missed nursing care is an error of omission. This concept has been conspicuously absent in quality and patient safety literature, with individual aspects of nursing care left undone given only occasional mention. An 8-step method of concept analysis - select concept, determine purpose, identify uses, define attributes, identify model case, describe related and contrary cases, identify antecedents and consequences and define empirical referents - was used to examine the concept of missed nursing care. The sources for the analysis were identified by systematic searches of the World Wide Web, MEDLINE, CINAHL and reference lists of related journal articles with a timeline of 1970 to April 2008. Missed nursing care, conceptualized within the Missed Nursing Care Model, is defined as any aspect of required patient care that is omitted (either in part or in whole) or delayed. Various attribute categories reported by nurses in acute care settings contribute to missed nursing care: (1) antecedents that catalyse the need for a decision about priorities; (2) elements of the nursing process and (3) internal perceptions and values of the nurse. Multiple elements in the nursing environment and internal to nurses influence whether needed nursing care is provided. Missed care as conceptualized within the Missed Care Model is a universal phenomenon. The concept is expected to occur across all cultures and countries, thus being international in scope.

Nursing-sensitive indicators: a concept analysis

PubMed Central

Heslop, Liza; Lu, Sai

2014-01-01

Aim To report a concept analysis of nursing-sensitive indicators within the applied context of the acute care setting. Background The concept of ‘nursing sensitive indicators’ is valuable to elaborate nursing care performance. The conceptual foundation, theoretical role, meaning, use and interpretation of the concept tend to differ. The elusiveness of the concept and the ambiguity of its attributes may have hindered research efforts to advance its application in practice. Design Concept analysis. Data sources Using ‘clinical indicators’ or ‘quality of nursing care’ as subject headings and incorporating keyword combinations of ‘acute care’ and ‘nurs*’, CINAHL and MEDLINE with full text in EBSCOhost databases were searched for English language journal articles published between 2000–2012. Only primary research articles were selected. Methods A hybrid approach was undertaken, incorporating traditional strategies as per Walker and Avant and a conceptual matrix based on Holzemer's Outcomes Model for Health Care Research. Results The analysis revealed two main attributes of nursing-sensitive indicators. Structural attributes related to health service operation included: hours of nursing care per patient day, nurse staffing. Outcome attributes related to patient care included: the prevalence of pressure ulcer, falls and falls with injury, nosocomial selective infection and patient/family satisfaction with nursing care. Conclusion This concept analysis may be used as a basis to advance understandings of the theoretical structures that underpin both research and practical application of quality dimensions of nursing care performance. PMID:25113388

Mobility on Demand Operational Concept Report.

DOT National Transportation Integrated Search

2017-09-10

This operational concept report provides an overview of the Mobility on Demand (MOD) concept and its evolution, description of the MOD ecosystem in a supply and demand framework, and its stakeholders and enablers. Leveraging the MOD ecosystem framewo...

[Recovery: systematic review of a concept].

PubMed

Baccari, Ivana Oliveira Preto; Campos, Rosana Teresa Onocko; Stefanello, Sabrina

2015-01-01

The concept of recovery has been described in papers as a state of psychic, physical and social recuperation of day-to-day functions. The scope of this article is to analyze the concepts of the term in different research methodologies and the paradigmatic evolution of the recovery concept. Systematic bibliographical research was conducted in the Pubmed database using the words "recovery + schizophrenia" limited to freely available full papers published in the previous two years. Nineteen papers were analyzed. The majority of the papers sought associations between characteristic data and recovery; few papers discussed the concept in a way to distinguish it from other words like cure or rehabilitation. Recovery as a state in which people with severe mental illness can feel like the creators of their own itinerary tend to be found in qualitative studies and in bibliographic reviews in which the meaning of recovery is not related to the lack of symptoms and tends to prioritize how participative the life of an individual can be despite the disease. Some quantitative studies detect this conceptual difference. In qualitative research there is an increase in the concept of recovery and in ways of promoting it.

Effects of priming a bipolar attribute concept on dimension versus concept-specific accessibility of semantic memory.

PubMed

Park, J W; Yoon, S O; Kim, K H; Wyer, R S

2001-09-01

In Experiment 1, participants received behavioral information about a person that could be interpreted as either honest or unkind. Priming a concept along 1 dimension (e.g., honesty) increased the likelihood of spontaneously describing the target along this dimension (i.e., as honest), regardless of whether the primed concept was directly applicable for interpreting the target's behavior ("honest") or was its bipolar opposite ("dishonest"). Experiment 2 replicated this finding in a different, product domain. It further demonstrated that when information is ambiguous, primed concepts can influence not only the dimension along which the target is described but also the value it is assigned along this dimension. The effect of priming in both experiments was reflected in participants' overall evaluations of the targets as well as in their spontaneous descriptions of it. Results were consistent with the assumption that bipolar attributes are associatively linked in memory but are stored as separate concepts rather than as values along a bipolar continuum.

A Description of the "Crow's Foot" Tunnel Concept

NASA Technical Reports Server (NTRS)

Parrish, Russell V.; Williams, Steven P.; Arthur, Jarvis J., III; Kramer, Lynda J.; Bailey, Randall E.; Prinzel, Lawrence J., III; Norman, R. Michael

2006-01-01

NASA Langley Research Center has actively pursued the development and the use of pictorial or three-dimensional perspective displays of tunnel-, pathway- or highway-in-the-sky concepts for presenting flight path information to pilots in all aircraft categories (e.g., transports, General Aviation, rotorcraft) since the late 1970s. Prominent among these efforts has been the development of the crow s foot tunnel concept. The crow's foot tunnel concept emerged as the consensus pathway concept from a series of interactive workshops that brought together government and industry display designers, test pilots, and airline pilots to iteratively design, debate, and fly various pathway concepts. Over years of use in many simulation and flight test activities at NASA and elsewhere, modifications have refined and adapted the tunnel concept for different applications and aircraft categories (i.e., conventional transports, High Speed Civil Transport, General Aviation). A description of those refinements follows the definition of the original tunnel concept.

Screening studies of advanced control concepts for airbreathing engines

NASA Technical Reports Server (NTRS)

Ouzts, Peter J.; Lorenzo, Carl F.; Merrill, Walter C.

1993-01-01

The application of advanced control concepts to airbreathing engines may yield significant improvements in aircraft/engine performance and operability. Accordingly, the NASA Lewis Research Center has conducted screening studies of advanced control concepts for airbreathing engines to determine their potential impact on turbine engine performance and operability. The purpose of the studies was to identify concepts which offered high potential yet may incur high research and development risk. A target suite of proposed concepts was formulated by NASA and industry. These concepts were evaluated in a two phase study to quantify each concept's impact on desired engine characteristics. To aid in the evaluation, three target aircraft/engine combinations were considered: a military high performance fighter mission, a high speed civil transport mission, and a civil tiltrotor mission. Each of the advanced control concepts considered in the study were defined and described. The concept's potential impact on engine performance was determined. Relevant figures of merit on which to evaluate the concepts were also determined. Finally, the concepts were ranked with respect to the target aircraft/engine missions.

Concept analysis of nurses' happiness.

PubMed

Ozkara San, Eda

2015-01-01

The purpose of this analysis is to examine and clarify the concept of nurses' happiness (NH), understand the different uses of the concept, explore the conditions that foster it, and consider the consequences of NH, including the phenomena that emerge as a result of NH occurrence. The author utilizes Walker and Avant's eight-stage concept analysis. Computer and manual searches were conducted of articles in the English language addressing NH from 1990 to present. EBSCO and PubMed are the electronic databases used to access literature for this paper. For both databases, the researcher has examined this new term by splitting the term nurses' happiness into its two root words, namely nurses and happiness. An inductive analysis of articles produced descriptive themes. Definitions of happiness and NH are analyzed. Antecedents, attributes, and consequences of NH are described. Model, borderline, contrary, and related cases for NH are also identified. This concept analysis helps in the understanding of the definition of NH, the attributes that contribute to the occurrence of NH in clinical practice, as well as the consequences of NH, and how it should be measured from a nursing perspective. Ozkara San. © 2014 Wiley Periodicals, Inc.

Integrating Economic Concepts into Consumer Education.

ERIC Educational Resources Information Center

MacDowell, Michael A.; Clow, John

1983-01-01

Integrating economic concepts into consumer education provides students a better understanding of their economic environment and can lead to more rational, informed decision making. Outlined are ways in which economic concepts can be integrated into consumer education courses. (MD)

A concept analysis of professional commitment in nursing.

PubMed

García-Moyano, Loreto; Altisent, Rogelio; Pellicer-García, Begoña; Guerrero-Portillo, Sandra; Arrazola-Alberdi, Oihana; Delgado-Marroquín, María Teresa

2017-01-01

The concept of professional commitment is being widely studied at present. However, although it is considered an indicator for the most human part of nursing care, there is no clear definition for it, and different descriptors are being used indiscriminately to reference it. The aim of this study is to clarify the concept of professional commitment in nursing through the Rodgers' evolutionary concept analysis process. Systematic search using English and Spanish descriptors and concept analysis. Studies published between 2009 and June 2015, front-to-back analysis of the Nursing Ethics journal and manual check of articles cited in studies related to the Nijmegen Professionalism Scale. The procedure of concept analysis developed by Rodgers was used. Ethical considerations: Although the topic was not labeled as sensitive and subject to ethical approval, its realization was approved by the Ethical Committee of Clinical Research of Aragon (CEICA) approved the study on 18 March 2015 and also careful procedures have been followed according to ethics expressed in the Declaration of Helsinki. A total of 17 published studies. A clear definition of the concept was made, and surrogate terms, concept dimension, differential factors related to the concept, sociocultural variations and consequences for nursing practice were identified. There is a need for continuous advancement in the development of the concept, specific actions to encourage this and the improvement of evaluation methods for its study.

Social justice: a concept analysis.

PubMed

Buettner-Schmidt, Kelly; Lobo, Marie L

2012-04-01

This article is a report of an analysis of the concept of social justice. Nursing's involvement in social justice has waned in the recent past. A resurgence of interest in nurses' roles about social justice requires a clear understanding of the concept. Literature for this concept analysis included English language articles from CINAHL, PubMed, and broad multidisciplinary literature databases, within and outside of health-related literature, for the years 1968-2010. Two books and appropriate websites were also reviewed. The reference lists of the identified sources were reviewed for additional sources. The authors used Wilsonian methods of concept analysis as a guide. An efficient, synthesized definition of social justice was developed, based on the identification of its attributes, antecedents and consequences that provides clarification of the concept. Social justice was defined as full participation in society and the balancing of benefits and burdens by all citizens, resulting in equitable living and a just ordering of society. Its attributes included: (1) fairness; (2) equity in the distribution of power, resources, and processes that affect the sufficiency of the social determinants of health; (3) just institutions, systems, structures, policies, and processes; (4) equity in human development, rights, and sustainability; and (5) sufficiency of well-being. Nurses can have an important influence on the health of people globally by reinvesting in social justice. Implications for research, education, practice and policy, such as development of a social justice framework and educational competencies are presented. © 2011 The Authors. Journal of Advanced Nursing © 2011 Blackwell Publishing Ltd.

[Pre-conception sex selection].

PubMed

Julesz, Máté

2014-11-16

According to Article 14 of the Oviedo Convention on Human Rights and Biomedicine of the Council of Europe, the use of techniques of medically assisted procreation shall not be allowed for the purpose of choosing the sex of a future child, unless serious hereditary sex-related disease is to be avoided. In Israel and the United States of America, pre-conception sex selection for the purpose of family balancing is legal. The European health culture does not regard reproductive justice as part of social justice. From this aspect, the situation is very similar in China and India. Reproductive liberty is opposed by the Catholic Church, too. According to the Catholic Church, medical grounds may not justify pre-conception sex selection, though being bioethically less harmful than family balancing for social reasons. In Hungary, according to Section 170 of the Criminal Code, pre-conception sex selection for the purpose of family balancing constitutes a crime. At present, the Hungarian legislation is in full harmony with the Oviedo Convention, enacted in Hungary in 2002.

Non-Traditional Organizational Design Concepts

DTIC Science & Technology

1982-05-01

specialists benefit, for recognition ave. to ave. have associatelon with project; resembles job enrichment. 9 12 . Structure/concept Yes Synonym for program...provisions Little Wall (1980): Form of recognition is per- for recognition ceived by functional specialists ; resem- bles job enrichment. 12 ...Indirect reward to functional recognition specialists ; resembles job enrichment. 12 . Structure/concept No • S applied in the pub- lic sector 108 U

Obesogenic environment: a concept analysis and pediatric perspective.

PubMed

Gauthier, Kristine I; Krajicek, Marilyn J

2013-07-01

A concept analysis was undertaken to examine the attributes, characteristics, and uses of the concept of obesogenic environment within a pediatric context. Utilizing a modified version of Walker and Avant's method, the attributes and characteristics of obesogenic environment were identified as it pertains to children. Based on the review of the literature and previous definitions applied to adults, a definition of the concept of obesogenic environment within a pediatric context was developed; examples of sample cases illustrate the concept further. Defining the concept of obesogenic environment has utility for nursing theory development, practice, research, and education. © 2013, Wiley Periodicals, Inc.

Pioneering Concepts of Planetary Habitability

NASA Astrophysics Data System (ADS)

Raulin Cerceau, Florence

Famous astronomers such as Richard A. Proctor (1837-1888), Jules Janssen (1824-1907), and Camille Flammarion (1842-1925) studied the concept of planetary habitability a century before this concept was updated in the context of the recent discoveries of exoplanets and the development of planetary exploration in the solar system. They independently studied the conditions required for other planets to be inhabited, and these considerations led them to specify the term "habitability." Naturally, the planet Mars was at the heart of the discussion. Our neighboring planet, regarded as a sister planet of Earth, looked like a remarkable abode for life. During the second part of the nineteenth century, the possibility of Martian intelligent life was intensively debated, and hopes were still ardent to identify a kind of vegetation specific to the red planet. In such a context, the question of Mars' habitability seemed to be very valuable, especially when studying hypothetical Martian vegetation. At the dawn of the Space Age, German-born physician and pioneer of space medicine Hubertus Strughold (1898-1987) proposed in the book The Green and Red Planet: A Physiological Study of the Possibility of Life on Mars (1954) to examine the planets of the solar system through a "planetary ecology." This innovative notion, which led to a fresh view of the concept of habitability, was supposed to designate a new field involving biology: "the science of planets as an environment for life" (Strughold 1954). This notion was very close to the concept of habitability earlier designated by our nineteenth-century pioneers. Strughold also coined the term "ecosphere" to name the region surrounding a star where conditions allowed life-bearing planets to exist. We highlight in this chapter the historical aspects of the emergence of the (modern) concept of habitability. We will consider the different formulations proposed by the pioneers, and we will see in what way it can be similar to our

Sociometric types and academic self-concept in adolescents.

PubMed

Inglés, Cándido J; Aparisi, David; Delgado, Beatriz; Torregrosa, María S; García-Fernández, José M

2017-11-01

The aim of this study was to analyze the relationship between sociometric types, behavioral categories, and academic self-concept in a sample of 1,349 (51.7% boys) Spanish adolescents, ranging in age from 12 to 16 years. the students’ sociometric nomination was performed using the Programa Socio (Partner Program), and academic self-concept was measured with the Self Description Questionnaire (SDQ-II; Marsh, 1992). results show that academic self-concept was a significant predictor of sociometric types and behavioral categories, as students with high scores on academic self-concept were more likely to be positively rated by their peers (popular, leaders, collaborators and good students) than students with low scores on student academic self-concept. these results reinforce the emphasis on academic self-concept research and its relevance to educational practice.

EDOS operations concept and development approach

NASA Technical Reports Server (NTRS)

Knoble, G.; Garman, C.; Alcott, G.; Ramchandani, C.; Silvers, J.

1994-01-01

The Earth Observing System (EOS) Data and Operations System (EDOS) is being developed by the National Aeronautics and Space Administration (NASA) Goddard Space Flight Center (GSFC) for the capture, level zero processing, distribution, and backup archiving of high speed telemetry data received from EOS spacecraft. All data received will conform to the Consultative Committee for Space Data Standards (CCSDS) recommendations. The major EDOS goals are to: (1) minimize EOS program costs to implement and operate EDOS; (2) respond effectively to EOS growth requirements; and (3) maintain compatibility with existing and enhanced versions of NASA institutional systems required to support EOS spacecraft. In order to meet these goals, the following objectives have been defined for EDOS: (1) standardize EDOS interfaces to maximize utility for future requirements; (2) emphasize life-cycle cost (LCC) considerations (rather than procurement costs) in making design decisions and meeting reliability, maintainability, availability (RMA) and upgradability requirements; (3) implement data-driven operations to the maximum extent possible to minimize staffing requirements and to maximize system responsiveness; (4) provide a system capable of simultaneously supporting multiple spacecraft, each in different phases of their life-cycles; (5) provide for technology insertion features to accommodate growth and future LCC reductions during the operations phase; and (6) provide a system that is sufficiently robust to accommodate incremental performance upgrades while supporting operations. Operations concept working group meetings were facilitated to help develop the EDOS operations concept. This provided a cohesive concept that met with approval of responsible personnel from the start. This approach not only speeded up the development process by reducing review cycles, it also provided a medium for generating good ideas that were immediately molded into feasible concepts. The operations concept

Addiction concepts and international control.

PubMed

Room, Robin

2006-01-01

Addiction concepts became established in the wake of the great expansion of the availability of psychoactive substances through the globalization of the age of European empires and the industrial revolution. Addiction was a way of understanding (and locating either in the substance or in individual deficiencies) the contradictions between ready availability and the demands for sobriety imposed by the new means of production and transportation. Originally applied to alcohol, addiction concepts were soon applied to other substances. The elusive place of addiction concepts in current international drug control treaties is considered. On the one hand, the "serious evil" and "danger" of addiction is a preambular justification for the treaties; on the other hand, the addict and addiction otherwise disappear from consideration, except in terms of technical criteria for the inclusion of substances.

The Bobath concept in contemporary clinical practice.

PubMed

Graham, Julie Vaughan; Eustace, Catherine; Brock, Kim; Swain, Elizabeth; Irwin-Carruthers, Sheena

2009-01-01

Future development in neurorehabilitation depends upon bringing together the endeavors of basic science and clinical practice. The Bobath concept is widely utilized in rehabilitation following stroke and other neurological conditions. This concept was first developed in the 1950s, based on the neuroscience knowledge of those times. The theoretical basis of the Bobath concept is redefined based on contemporary neuroscience and rehabilitation science. The framework utilized in the Bobath concept for the analysis of movement and movement dysfunction is described. This framework focuses on postural control for task performance, the ability to move selectively, the ability to produce coordinated sequences of movement and vary movement patterns to fit a task, and the role of sensory input in motor behaviour and learning. The article describes aspects of clinical practice that differentiate this approach from other models of practice. Contemporary practice in the Bobath concept utilizes a problem-solving approach to the individual's clinical presentation and personal goals. Treatment is focused toward remediation, where possible, and guiding the individual towards efficient movement strategies for task performance. The aim of this article is to provide a theoretical framework on which future research into the Bobath concept can be based.

Identification of Threshold Concepts for Biochemistry

PubMed Central

Green, David; Lewis, Jennifer E.; Lin, Sara; Minderhout, Vicky

2014-01-01

Threshold concepts (TCs) are concepts that, when mastered, represent a transformed understanding of a discipline without which the learner cannot progress. We have undertaken a process involving more than 75 faculty members and 50 undergraduate students to identify a working list of TCs for biochemistry. The process of identifying TCs for biochemistry was modeled on extensive work related to TCs across a range of disciplines and included faculty workshops and student interviews. Using an iterative process, we prioritized five concepts on which to focus future development of instructional materials. Broadly defined, the concepts are steady state, biochemical pathway dynamics and regulation, the physical basis of interactions, thermodynamics of macromolecular structure formation, and free energy. The working list presented here is not intended to be exhaustive, but rather is meant to identify a subset of TCs for biochemistry for which instructional and assessment tools for undergraduate biochemistry will be developed. PMID:25185234

Approximation concepts for efficient structural synthesis

NASA Technical Reports Server (NTRS)

Schmit, L. A., Jr.; Miura, H.

1976-01-01

It is shown that efficient structural synthesis capabilities can be created by using approximation concepts to mesh finite element structural analysis methods with nonlinear mathematical programming techniques. The history of the application of mathematical programming techniques to structural design optimization problems is reviewed. Several rather general approximation concepts are described along with the technical foundations of the ACCESS 1 computer program, which implements several approximation concepts. A substantial collection of structural design problems involving truss and idealized wing structures is presented. It is concluded that since the basic ideas employed in creating the ACCESS 1 program are rather general, its successful development supports the contention that the introduction of approximation concepts will lead to the emergence of a new generation of practical and efficient, large scale, structural synthesis capabilities in which finite element analysis methods and mathematical programming algorithms will play a central role.

The allocation of valenced concepts onto 3D space.

PubMed

Marmolejo-Ramos, Fernando; Tirado, Carlos; Arshamian, Edward; Vélez, Jorge Iván; Arshamian, Artin

2018-06-01

The valence-space metaphor research area investigates the metaphorical mapping of valenced concepts onto space. Research findings from this area indicate that positive, neutral, and negative concepts are associated with upward, midward, and downward locations, respectively, in the vertical plane. The same research area has also indicated that such concepts seem to have no preferential location on the horizontal plane. The approach-avoidance effect consists in decreasing the distance between positive stimuli and the body (i.e. approach) and increasing the distance between negative stimuli and the body (i.e. avoid). Thus, the valence-space metaphor accounts for the mapping of valenced concepts onto the vertical and horizontal planes, and the approach-avoidance effect accounts for the mapping of valenced concepts onto the "depth" plane. By using a cube conceived for the study of allocation of valenced concepts onto 3D space, we show in three studies that positive concepts are placed in upward locations and near the participants' body, negative concepts are placed in downward locations and far from the participants' body, and neutral concepts are placed in between these concepts in both planes.

Similarity-Based Recommendation of New Concepts to a Terminology

PubMed Central

Chandar, Praveen; Yaman, Anil; Hoxha, Julia; He, Zhe; Weng, Chunhua

2015-01-01

Terminologies can suffer from poor concept coverage due to delays in addition of new concepts. This study tests a similarity-based approach to recommending concepts from a text corpus to a terminology. Our approach involves extraction of candidate concepts from a given text corpus, which are represented using a set of features. The model learns the important features to characterize a concept and recommends new concepts to a terminology. Further, we propose a cost-effective evaluation methodology to estimate the effectiveness of terminology enrichment methods. To test our methodology, we use the clinical trial eligibility criteria free-text as an example text corpus to recommend concepts for SNOMED CT. We computed precision at various rank intervals to measure the performance of the methods. Results indicate that our automated algorithm is an effective method for concept recommendation. PMID:26958170

Collision Avoidance for Airport Traffic Concept Evaluation

NASA Technical Reports Server (NTRS)

Jones, Denise R.; Prinzel, Lawrence J., III; Otero, Sharon D.; Barker, Glover D.

2009-01-01

An initial Collision Avoidance for Airport Traffic (CAAT) concept for the Terminal Maneuvering Area (TMA) was evaluated in a simulation study at the National Aeronautics and Space Administration (NASA) Langley Research Center. CAAT is being designed to enhance surface situation awareness and provide cockpit alerts of potential conflicts during runway, taxi, and low altitude air-to-air operations. The purpose of the study was to evaluate the initial concept for an aircraft-based method of conflict detection and resolution (CD&R) in the TMA focusing on conflict detection algorithms and alerting display concepts. This paper gives an overview of the CD&R concept, simulation study, and test results.

Scalable Power-Component Models for Concept Testing

DTIC Science & Technology

2011-08-17

Scalable Power-Component Models for Concept Testing, Mazzola, et al . UNCLASSIFIED: Dist A. Approved for public release 2011 NDIA GROUND VEHICLE...Power-Component Models for Concept Testing, Mazzola, et al . UNCLASSIFIED: Dist A. Approved for public release Page 2 of 8 technology that has yet...Technology Symposium (GVSETS) Scalable Power-Component Models for Concept Testing, Mazzola, et al . UNCLASSIFIED: Dist A. Approved for public release

Visualization: a tool for enhancing students' concept images of basic object-oriented concepts

NASA Astrophysics Data System (ADS)

Cetin, Ibrahim

2013-03-01

The purpose of this study was twofold: to investigate students' concept images about class, object, and their relationship and to help them enhance their learning of these notions with a visualization tool. Fifty-six second-year university students participated in the study. To investigate his/her concept images, the researcher developed a survey including open-ended questions, which was administered to the participants. Follow-up interviews with 12 randomly selected students were conducted to explore their answers to the survey in depth. The results of the first part of the research were utilized to construct visualization scenarios. The students used these scenarios to develop animations using Flash software. The study found that most of the students experienced difficulties in learning object-oriented notions. Overdependence on code-writing practice and examples and incorrectly learned analogies were determined to be the sources of their difficulties. Moreover, visualization was found to be a promising approach in facilitating students' concept images of basic object-oriented notions. The results of this study have implications for researchers and practitioners when designing programming instruction.

Academic Self-Concept: Modeling and Measuring for Science

NASA Astrophysics Data System (ADS)

Hardy, Graham

2014-08-01

In this study, the author developed a model to describe academic self-concept (ASC) in science and validated an instrument for its measurement. Unlike previous models of science ASC, which envisage science as a homogenous single global construct, this model took a multidimensional view by conceiving science self-concept as possessing distinctive facets including conceptual and procedural elements. In the first part of the study, data were collected from 1,483 students attending eight secondary schools in England, through the use of a newly devised Secondary Self-Concept Science Instrument, and structural equation modeling was employed to test and validate a model. In the second part of the study, the data were analysed within the new self-concept framework to examine learners' ASC profiles across the domains of science, with particular attention paid to age- and gender-related differences. The study found that the proposed science self-concept model exhibited robust measures of fit and construct validity, which were shown to be invariant across gender and age subgroups. The self-concept profiles were heterogeneous in nature with the component relating to self-concept in physics, being surprisingly positive in comparison to other aspects of science. This outcome is in stark contrast to data reported elsewhere and raises important issues about the nature of young learners' self-conceptions about science. The paper concludes with an analysis of the potential utility of the self-concept measurement instrument as a pedagogical device for science educators and learners of science.

Hope in terminal illness: an evolutionary concept analysis.

PubMed

Johnson, Sarah

2007-09-01

to clarify the concept of hope as perceived by patients with a terminal illness, to develop hope as an evidence-based nursing concept, to contribute new knowledge and insights about hope to the relatively new field of palliative care; endeavouring to maximize the quality of life of terminally ill patients in the future. utilizing Rodgers' (2000a) evolutionary concept analysis methodology and thematic content analysis, 17 pieces of research-based literature on hope as perceived by adult patients with any terminal illness pathology, from the disciplines of nursing and medicine have been reviewed and analyzed. An exemplary case of the concept in action is presented along with the evolution of the concept hope in terminal illness. Ten essential attributes of the concept were identified: positive expectation; personal qualities; spirituality; goals; comfort; help/caring; interpersonal relationships; control; legacy; and life review. Patients' hopes and goals are scaled down and refocused in order to live in the present and enjoy the time they have left with loved ones. By completing all the steps to Rodgers' (2000a) evolutionary view of concept analysis, a working definition and clarification of the concept in its current use has been achieved. This provides a solid conceptual foundation for further study.

On "spirituality," "religion," and "religions": a concept analysis.

PubMed

Lazenby, J Mark

2010-12-01

With increasing research on the role of religion and spirituality in the well-being of cancer patients, it is important to define distinctly the concepts that researchers use in these studies. Using the philosophies of Frege and James, this essay argues that the terms "religion" and "spirituality" denote the same concept, a concept that is identified with the Peace/Meaning subscale of the Functional Assessment of Chronic Illness Therapy--Spiritual Well-being Scale (FACIT-Sp). The term "Religions" denotes the concept under which specific religious systems are categorized. This article shows how muddling these concepts causes researchers to make claims that their findings do not support, and it ends in suggesting that future research must include universal measures of the concept of religion/spirituality in order to investigate further the role of interventions in the spiritual care of people living with cancer.

Using the Typewriter for Learning: Concepts

ERIC Educational Resources Information Center

Clayton, Dean

1977-01-01

Research studies conducted with typewriting students have consistently shown that concepts can be learned in typewriting classes with no appreciable loss of typewriting skill by students. This article discusses three stages of typewriting instruction and how concept learning can be incorporated into each stage. (HD)

Concept Maps as Tools for Teaching.

ERIC Educational Resources Information Center

Moreira, Marco A.

1979-01-01

Discusses how concept maps with two dimensional diagrams which show hierarchical relationships among concepts of a discipline can be used in teaching physics. An example for teaching a course in electromagnetism at the Federal University of Rio Grande do Sul, Brazil is presented. (HM)

Concept Car Design and Ability Training

NASA Astrophysics Data System (ADS)

Lv, Jiefeng; Lu, Hairong

The concept design as a symbol of creative design thinking, reflecting on the future design of exploratory and prospective, as a vehicle to explore the notion of future car design, design inspiration and creativity is not only a bold display, more through demonstrate the concept, reflects the company's technological strength and technological progress, and thus enhance their brand image. Present Chinese automobile design also has a very big disparity with world level, through cultivating students' concept design ability, to establish native design features and self-reliant brand image is practical and effective ways, also be necessary and pressing.

Progress toward a general species concept.

PubMed

Hausdorf, Bernhard

2011-04-01

New insights in the speciation process and the nature of "species" that accumulated in the past decade demand adjustments of the species concept. The standing of some of the most broadly accepted or most innovative species concepts in the light of the growing evidence that reproductive barriers are semipermeable to gene flow, that species can differentiate despite ongoing interbreeding, that a single species can originate polyphyletically by parallel evolution, and that uniparental organisms are organised in units that resemble species of biparental organisms is discussed. As a synthesis of ideas in existing concepts and the new insights, a generalization of the genic concept is proposed that defines species as groups of individuals that are reciprocally characterized by features that would have negative fitness effects in other groups and that cannot be regularly exchanged between groups upon contact. The benefits of this differential fitness species concept are that it classifies groups that keep differentiated and keep on differentiating despite interbreeding as species, that it is not restricted to specific mutations or mechanisms causing speciation, and that it can be applied to the whole spectrum of organisms from uni- to biparentals. © 2011 The Author(s). Evolution© 2011 The Society for the Study of Evolution.

Silent Aircraft Initiative Concept Risk Assessment

NASA Technical Reports Server (NTRS)

Nickol, Craig L.

2008-01-01

A risk assessment of the Silent Aircraft Initiative's SAX-40 concept design for extremely low noise has been performed. A NASA team developed a list of 27 risk items, and evaluated the level of risk for each item in terms of the likelihood that the risk would occur and the consequences of the occurrence. The following risk items were identified as high risk, meaning that the combination of likelihood and consequence put them into the top one-fourth of the risk matrix: structures and weight prediction; boundary-layer ingestion (BLI) and inlet design; variable-area exhaust and thrust vectoring; displaced-threshold and continuous descent approach (CDA) operational concepts; cost; human factors; and overall noise performance. Several advanced-technology baseline concepts were created to serve as a basis for comparison to the SAX-40 concept. These comparisons indicate that the SAX-40 would have significantly greater research, development, test, and engineering (RDT&E) and production costs than a conventional aircraft with similar technology levels. Therefore, the cost of obtaining the extremely low noise capability that has been estimated for the SAX-40 is significant. The SAX-40 concept design proved successful in focusing attention toward low noise technologies and in raising public awareness of the issue.

Professional nursing values: A concept analysis.

PubMed

Schmidt, Bonnie J; McArthur, Erin C

2018-01-01

The aim of this concept analysis is to clarify the meaning of professional nursing values. In a time of increasing ethical dilemmas, it is essential that nurses internalize professional values to develop and maintain a professional identity. However, nursing organizations and researchers provide different conceptions of professional nursing values, leading to a lack of clarity as to the meaning and attributes of this construct. Walker and Avant's (2011) method was used to guide an analysis of this concept. Resources published from 1973 to 2016 were identified via electronic databases and hand-searching of reference lists. A review of the literature was completed and the data were analyzed to identify uses of the concept; the defining attributes of the concept; borderline, related, contrary, and illegitimate examples; antecedents and consequences; and empirical referents. Professional nursing values were defined as important professional nursing principles of human dignity, integrity, altruism, and justice that serve as a framework for standards, professional practice, and evaluation. Further research is needed in the development and testing of professional nursing values theory, and the reassessment of values instruments. Core professional values that are articulated may help unify the profession and demonstrate the value of nursing to the public. © 2017 Wiley Periodicals, Inc.

Team-Based Care: A Concept Analysis.

PubMed

Baik, Dawon

2017-10-01

The purpose of this concept analysis is to clarify and analyze the concept of team-based care in clinical practice. Team-based care has garnered attention as a way to enhance healthcare delivery and patient care related to quality and safety. However, there is no consensus on the concept of team-based care; as a result, the lack of common definition impedes further studies on team-based care. This analysis was conducted using Walker and Avant's strategy. Literature searches were conducted using PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), and PsycINFO, with a timeline from January 1985 to December 2015. The analysis demonstrates that the concept of team-based care has three core attributes: (a) interprofessional collaboration, (b) patient-centered approach, and (c) integrated care process. This is accomplished through understanding other team members' roles and responsibilities, a climate of mutual respect, and organizational support. Consequences of team-based care are identified with three aspects: (a) patient, (b) healthcare professional, and (c) healthcare organization. This concept analysis helps better understand the characteristics of team-based care in the clinical practice as well as promote the development of a theoretical definition of team-based care. © 2016 Wiley Periodicals, Inc.

Development of the Solar System Concept Inventory

NASA Astrophysics Data System (ADS)

Hornstein, S.; Prather, E.

2009-12-01

Concept inventories can provide useful insight into students’ understanding of key physical concepts. Knowing what your students have learned during a course is a valuable tool for improving your own teaching. Unfortunately, current astronomy concept inventories are not suitable for an introductory solar system course because they either cover too broad of a range of topics (e.g. Astronomy Diagnostic Test) or are too narrowly focused (e.g. Greenhouse Effect Concept Inventory, Lunar Phase Concept Inventory). We have developed the Solar System Concept Inventory (SSCI) to cover those topics commonly taught in an introductory solar system course. The topics included on the SSCI were selected by having faculty identify the key concepts they address when teaching about the solar system. SSCI topics include formation mechanisms, planetary interiors, atmospheric effects, and small solar system bodies. Student interviews were conducted to identify common naive ideas and reasoning difficulties relating to these key topics. The SSCI has been through two semesters of national, multi-institutional field-testing, involving over 1500 students. After the first semester of testing, question statistics were used to flag ineffective questions and flagged questions were revised or eliminated. We will present an overall outline of the SSCI development as well as our question-flagging criteria and question analyses from the latest round of field-testing. We would like to thank the NSF for funding under Grant No. 0715517, a CCLI Phase III Grant for the Collaboration of Astronomy Teaching Scholars (CATS) Program.

Development of a Solar System Concept Inventory

NASA Astrophysics Data System (ADS)

Hornstein, Seth D.; Duncan, D.; S, C. A. T.

2009-01-01

Concept inventories can provide useful insight into students’ understanding of key physical concepts. Knowing what your students have learned during a course is a valuable tool for improving your own teaching. Unfortunately, current astronomy concept inventories are not suitable for an introductory solar system course because they either cover too broad of a range of topics (e.g. Astronomy Diagnostic Test) or are too narrowly focused (e.g. Greenhouse Effect Concept Inventory, Lunar Phase Concept Inventory). We have developed the Solar System Concept Inventory (SSCI) to cover those topics commonly taught in an introductory solar system course. The topics included on the SSCI were selected by having faculty identify the key concepts they address when teaching about the solar system. SSCI topics include formation mechanisms, planetary interiors, atmospheric effects, and small solar system bodies. Student interviews were conducted to identify common naive ideas and reasoning difficulties relating to these key topics. Preliminary development of the SSCI was completed at the University of Colorado and involved over 400 students. A larger, national, multi-institutional field test is planned for Spring 2009 as a Collaboration of Astronomy Teaching Scholars (CATS) research project. We present here the results from the preliminary development and proposed changes for the next stage of research. We would like to thank the NSF for funding under Grant No. 0715517, a CCLI Phase III Grant for the Collaboration of Astronomy Teaching Scholars (CATS) Program.

Readiness for hospital discharge: A concept analysis.

PubMed

Galvin, Eileen Catherine; Wills, Teresa; Coffey, Alice

2017-11-01

To report on an analysis on the concept of 'readiness for hospital discharge'. No uniform operational definition of 'readiness for hospital discharge' exists in the literature; therefore, a concept analysis is required to clarify the concept and identify an up-to-date understanding of readiness for hospital discharge. Clarity of the concept will identify all uses of the concept; provide conceptual clarity, an operational definition and direction for further research. Literature review and concept analysis. A review of literature was conducted in 2016. Databases searched were: Academic Search Complete, CINAHL Plus with Full Text, PsycARTICLES, Psychology and Behavioural Sciences Collection, PsycINFO, Social Sciences Full Text (H.W. Wilson) and SocINDEX with Full Text. No date limits were applied. Identification of the attributes, antecedents and consequences of readiness for hospital discharge led to an operational definition of the concept. The following attributes belonging to 'readiness for hospital discharge' were extracted from the literature: physical stability, adequate support, psychological ability, and adequate information and knowledge. This analysis contributes to the advancement of knowledge in the area of hospital discharge, by proposing an operational definition of readiness for hospital discharge, derived from the literature. A better understanding of the phenomenon will assist healthcare professionals to recognize, measure and implement interventions where necessary, to ensure patients are ready for hospital discharge and assist in the advancement of knowledge for all professionals involved in patient discharge from hospital. © 2017 John Wiley & Sons Ltd.

The NASA X-Ray Mission Concepts Study

NASA Technical Reports Server (NTRS)

Petre, Robert; Ptak, A.; Bookbinder, J.; Garcia, M.; Smith, R.; Bautz, M.; Bregman, J.; Burrows, D.; Cash, W.; Jones-Forman, C.;

The Effectiveness of Concept Maps in Teaching Physics Concepts Applied to Engineering Education: Experimental Comparison of the Amount of Learning Achieved with and without Concept Maps

ERIC Educational Resources Information Center

Martinez, Guadalupe; Perez, Angel Luis; Suero, Maria Isabel; Pardo, Pedro J.

2013-01-01

A study was conducted to quantify the effectiveness of concept maps in learning physics in engineering degrees. The following research question was posed: What was the difference in learning results from the use of concept maps to study a particular topic in an engineering course? The study design was quasi-experimental and used a post-test as a…

Concept of operations.

DOT National Transportation Integrated Search

2007-04-06

The purpose of this document is to provide a Concept of Operations : for the Next Generation 911 (NG911) System (or system : of systems). The U.S. Department of Transportation (USDOT) : understands that access to emergency services ...

An Investigation of Adolescent Girls' Global Self-Concept, Physical Self-Concept, Identified Regulation, and Leisure-Time Physical Activity in Physical Education

ERIC Educational Resources Information Center

Beasley, Emily Kristin; Garn, Alex C.

2013-01-01

This study examined the relationships among identified regulation, physical self-concept, global self-concept, and leisure-time physical activity with a sample of middle and high school girls (N = 319) enrolled in physical education. Based on Marsh's theory of self-concept, it was hypothesized that a) physical self-concept would mediate the…

Advanced Turbofan Duct Liner Concepts

NASA Technical Reports Server (NTRS)

Bielak, Gerald W.; Premo, John W.; Hersh, Alan S.

1999-01-01

The Advanced Subsonic Technology Noise Reduction Program goal is to reduce aircraft noise by 10 EPNdB by the year 2000 relative, to 1992 technology. The improvement goal for nacelle attenuation is 25% relative to 1992 technology by 1997 and 50% by 2000. The Advanced Turbofan Duct Liner Concepts Task work by Boeing presented in this document was in support of these goals. The basis for the technical approach was a Boeing study conducted in 1993-94 under NASA/FAA contract NAS1-19349, Task 6, investigating broadband acoustic liner concepts. As a result of this work, it was recommended that linear double layer, linear and perforate triple layer, parallel element, and bulk absorber liners be further investigated to improve nacelle attenuations. NASA LaRC also suggested that "adaptive" liner concepts that would allow "in-situ" acoustic impedance control also be considered. As a result, bias flow and high-temperature liner concepts were also added to the investigation. The major conclusion from the above studies is that improvements in nacelle liner average acoustic impedance characteristics alone will not result in 25% increased nacelle noise reduction relative to 1992 technology. Nacelle design advancements currently being developed by Boeing are expected to add 20-40% more acoustic lining to hardwall regions in current inlets, which is predicted to result in and additional 40-80% attenuation improvement. Similar advancements are expected to allow 10-30% more acoustic lining in current fan ducts with 10-30% more attenuation expected. In addition, Boeing is currently developing a scarf inlet concept which is expected to give an additional 40-80% attenuation improvement for equivalent lining areas.

Student Teachers' Conceptions of Teaching Biology

ERIC Educational Resources Information Center

Subramaniam, Karthigeyan

2014-01-01

The purpose of this qualitative study was to investigate prospective biology teachers' conceptions of teaching biology and identify how these conceptions revealed their strategies for helping their future students' learning of biology. The study utilized drawings, narratives and interviews to investigate the nature of the prospective biology…

Workplace incivility: a concept analysis.

PubMed

Abolfazl Vagharseyyedin, Seyyed

2015-01-01

This study aimed to describe the meaning of the concept 'workplace incivility' and promote consistency in its application in nursing research and practice. The methodology introduced by Walker and Avant was used to analyze this concept. A total number of 50 studies that had essentially addressed the concept of incivility in employees' work environment was selected. Ambiguous intent, violation of mutual respect, low intensity and lack of physical assault were identified as the defining attributes of workplace incivility. The necessary antecedent of workplace incivility consisted of the presence of two or more people, with one or more as the source of the incivility, and another or others as its target in the workplace. Moreover, certain individual and organisational factors were the potential antecedents of workplace incivility. Possible negative outcomes for victims, witnesses, organisations, society and perpetrators of such behaviours, such as increased cost for the organisation, reduced citizenship performance, psychological distress and anxiety were identified as outcomes of workplace incivility. Results of the current concept analysis can guide nurse managers to design interventions so that the occurrence of workplace incivility can be reduced. Further studies can focus on testing the psychometric properties of the existing workplace incivility scales, especially uncivil behaviours experienced by nurses across different societies or cultures.

Advanced nuclear thermal propulsion concepts

NASA Technical Reports Server (NTRS)

Howe, Steven D.

1993-01-01

In 1989, a Presidential directive created the Space Exploration Initiative (SEI) which had a goal of placing mankind on Mars in the early 21st century. The SEI was effectively terminated in 1992 with the election of a new administration. Although the initiative did not exist long enough to allow substantial technology development, it did provide a venue, for the first time in 20 years, to comprehensively evaluate advanced propulsion concepts which could enable fast, manned transits to Mars. As part of the SEI based investigations, scientists from NASA, DoE National Laboratories, universities, and industry met regularly and proceeded to examine a variety of innovative ideas. Most of the effort was directed toward developing a solid-core, nuclear thermal rocket and examining a high-power nuclear electric propulsion system. In addition, however, an Innovative Concepts committee was formed and charged with evaluating concepts that offered a much higher performance but were less technologically mature. The committee considered several concepts and eventually recommended that further work be performed in the areas of gas core fission rockets, inertial confinement fusion systems, antimatter based rockets, and gas core fission electric systems. Following the committee's recommendations, some computational modeling work has been performed at Los Alamos in certain of these areas and critical issues have been identified.

De-implementation: A concept analysis.

PubMed

Upvall, Michele J; Bourgault, Annette M

2018-04-25

The purpose of this concept analysis is to explore the meaning of de-implementation and provide a definition that can be used by researchers and clinicians to facilitate evidence-based practice. De-implementation is a relatively unknown process overshadowed by the novelty of introducing new ideas and techniques into practice. Few studies have addressed the challenge of de-implementation and the cognitive processes involved when terminating harmful or unnecessary practices. Also, confusion exists regarding the myriad of terms used to describe de-implementation processes. Walker and Avant's method (2011) for describing concepts was used to clarify de-implementation. A database search limited to academic journals yielded 281 publications representing basic research, study protocols, and editorials/commentaries from implementation science experts. After applying exclusion criterion of English language only and eliminating overlap between databases, 41 articles were selected for review. Literature review and synthesis provided a concept analysis and a distinct definition of de-implementation. De-implementation was defined as the process of identifying and removing harmful, non-cost-effective, or ineffective practices based on tradition and without adequate scientific support. The analysis provided further refinement of de-implementation as a significant concept for ongoing theory development in implementation science and clinical practice. © 2018 Wiley Periodicals, Inc.

Survey of Key Concepts in Enactivist Theory and Methodology

ERIC Educational Resources Information Center

Reid, David A.; Mgombelo, Joyce

2015-01-01

This article discusses key concepts within enactivist writing, focussing especially on concepts involved in the enactivist description of cognition as embodied action: perceptually guided action, embodiment, and structural coupling through recurrent sensorimotor patterns. Other concepts on which these concepts depend are also discussed, including…

A brain-based account of “basic-level” concepts

PubMed Central

Bauer, Andrew James; Just, Marcel Adam

2017-01-01

This study provides a brain-based account of how object concepts at an intermediate (basic) level of specificity are represented, offering an enriched view of what it means for a concept to be a basic-level concept, a research topic pioneered by Rosch and others (Rosch et al., 1976). Applying machine learning techniques to fMRI data, it was possible to determine the semantic content encoded in the neural representations of object concepts at basic and subordinate levels of abstraction. The representation of basic-level concepts (e.g. bird) was spatially broad, encompassing sensorimotor brain areas that encode concrete object properties, and also language and heteromodal integrative areas that encode abstract semantic content. The representation of subordinate-level concepts (robin) was less widely distributed, concentrated in perceptual areas that underlie concrete content. Furthermore, basic-level concepts were representative of their subordinates in that they were neurally similar to their typical but not atypical subordinates (bird was neurally similar to robin but not woodpecker). The findings provide a brain-based account of the advantages that basic-level concepts enjoy in everyday life over subordinate-level concepts: the basic level is a broad topographical representation that encompasses both concrete and abstract semantic content, reflecting the multifaceted yet intuitive meaning of basic-level concepts. PMID:28826947

48 CFR 34.005-3 - Concept exploration contracts.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 48 Federal Acquisition Regulations System 1 2010-10-01 2010-10-01 false Concept exploration... SPECIAL CATEGORIES OF CONTRACTING MAJOR SYSTEM ACQUISITION General 34.005-3 Concept exploration contracts. Whenever practicable, contracts to be performed during the concept exploration phase shall be for...

Assessing voids in SNOMED CT for pediatric concepts.

PubMed

Wade, Geraldine; Gotlieb, Edward M; Weigle, Carl; Warren, Robert

2008-11-06

Reference terminologies such as SNOMED CT may have voids in their representation of concepts important to the practice of pediatrics. In this project, relevant pediatric concepts were extracted from an American Academy of Pediatrics guideline and were mapped to SNOMED CT. Concepts were identified that should be included in the standard reference terminology. A process for formally evaluating voids in reference terminologies for concepts needed in pediatric clinical decision-making is planned as a next step.

Evolutionary space platform concept study. Volume 1: Executive summary

NASA Technical Reports Server (NTRS)

1982-01-01

The Evolutionary Space Platform Concept Study encompassed a 10 month effort to define, evaluate and compare approaches and concepts for evolving unmanned and manned capability platforms beyond the current Space Platform concepts to an evolutionary goal of establishing a permanent manned presence in space. Areas addressed included: special emphasis trade studies on the current unmanned concept, assessment of manned platform concepts, and utility analysis of a manned platform for defense related missions.

Development of Concepts in the History of Quantum Theory

ERIC Educational Resources Information Center

Heisenberg, Werner

1975-01-01

Traces the development of quantum theory from the concept of the discrete stationary states, to the generalized concept of state, to the search for the elementary particle. States that the concept of the elementary particle should be replaced by the concept of a fundamental symmetry. (MLH)

Rover concepts for lunar exploration

NASA Technical Reports Server (NTRS)

Connolly, John F.

1993-01-01

The paper describes the requirements and design concepts developed for the First Lunar Outpost (FLO) and the follow-on lunar missions by the Human Planet Surface Project Office at the Johnson Space Center, which include inputs from scientists, technologists, operators, personnel, astronauts, mission designers, and program managers. Particular attention is given to the requirements common to all rover concepts, the precursor robotic missions, the FLO scenario and capabilities, and the FLO evolution.

Low self-concept in poor readers: prevalence, heterogeneity, and risk.

PubMed

McArthur, Genevieve; Castles, Anne; Kohnen, Saskia; Banales, Erin

2016-01-01

There is evidence that poor readers are at increased risk for various types of low self-concept-particularly academic self-concept. However, this evidence ignores the heterogeneous nature of poor readers, and hence the likelihood that not all poor readers have low self-concept. The aim of this study was to better understand which types of poor readers have low self-concept. We tested 77 children with poor reading for their age for four types of self-concept, four types of reading, three types of spoken language, and two types of attention. We found that poor readers with poor attention had low academic self-concept, while poor readers with poor spoken language had low general self-concept in addition to low academic self-concept. In contrast, poor readers with typical spoken language and attention did not have low self-concept of any type. We also discovered that academic self-concept was reliably associated with reading and receptive spoken vocabulary, and that general self-concept was reliably associated with spoken vocabulary. These outcomes suggest that poor readers with multiple impairments in reading, language, and attention are at higher risk for low academic and general self-concept, and hence need to be assessed for self-concept in clinical practice. Our results also highlight the need for further investigation into the heterogeneous nature of self-concept in poor readers.

An Annotated Bibliography of Concept Mapping

ERIC Educational Resources Information Center

Garcia, GNA

2008-01-01

A rich narrative-style bibliography of concept mapping (reviewing six articles published between 1992-2005). Articles reviewed include: (1) Cognitive mapping: A qualitative research method for social work (C. Bitoni); (2) Collaborative concept mapping: Provoking and supporting meaningful discourse (C. Boxtel, J. Linden, E. Roelofs, and G. Erkens);…

Some Student Conceptions of Electromagnetic Induction

ERIC Educational Resources Information Center

Thong, Wai Meng; Gunstone, Richard

2008-01-01

Introductory electromagnetism is a central part of undergraduate physics. Although there has been some research into student conceptions of electromagnetism, studies have been sparse and separated. This study sought to explore second year physics students' conceptions of electromagnetism, to investigate to what extent the results from the present…

Development of a Meiosis Concept Inventory

ERIC Educational Resources Information Center

Kalas, Pamela; O'Neill, Angie; Pollock, Carol; Birol, Gulnur

2013-01-01

We have designed, developed, and validated a 17-question Meiosis Concept Inventory (Meiosis CI) to diagnose student misconceptions on meiosis, which is a fundamental concept in genetics. We targeted large introductory biology and genetics courses and used published methodology for question development, which included the validation of questions by…

World Class Schools: An Evolving Concept.

ERIC Educational Resources Information Center

Jenkins, John M., Ed.; And Others

The concept of "world class," often used in reference to education, lacks a precise, universal definition. This book presents case studies of exemplary schools. The foreword by Fenwick W. English presents a developmental concept of world-class education, in which fair and comparable standards, with sufficient room for sociocultural…

Staff nurse clinical leadership: a concept analysis.

PubMed

Chávez, Eduardo C; Yoder, Linda H

2015-01-01

The purpose of this article is to provide a concept analysis of staff nurse clinical leadership (SNCL). A clear delineation of SNCL will promote understanding and encourage communication of the phenomenon. Clarification of the concept will establish a common understanding of the concept, and advance the practice, education, and research of this phenomenon. A review of the literature was conducted using several databases. The databases were searched using the following keywords: clinical leadership, nursing, bedside, staff nurse, front-line, front line, and leadership. The search yielded several sources; however, only those that focused on clinical leadership demonstrated by staff nurses in acute care hospital settings were selected for review. SNCL is defined as staff nurses who exert significant influence over other individuals in the healthcare team, and although no formal authority has been vested in them facilitates individual and collective efforts to accomplish shared clinical objectives. The theoretical definition for SNCL within the team context will provide a common understanding of this concept and differentiate it from other types of leadership in the nursing profession. This clarification and conceptualization of the concept will assist further research of the concept and advance its practical application in acute care hospital settings. © 2014 Wiley Periodicals, Inc.

Children's Developing Conceptions of the Mind and Brain.

ERIC Educational Resources Information Center

Johnson, Carl Nils; Wellman, Henry M.

1982-01-01

The development of concepts of both the mind and brain is examined in subjects from preschool age through adulthood. While young children begin with undifferentiated conceptions of the mind and brain, in subsequent developments these concepts are differentiated along ontological and functional lines. (Author/RH)

Acquisition of new concepts by two amnesic patients.

PubMed

Van der Linden, M; Meulemans, T; Lorrain, D

1994-06-01

Two Korsakoff amnesics (A.G. and G.S.) and two control subjects were taught six new concepts. Each concept was composed of three parts: the name of the concept, the context in which the concept originated and its definition. The learning procedure consisted of two phases: (1) learning the concept names and definitions by means of the vanishing-cues method; (2) practice on examples of the concepts through a classification task: examples were either set in the same context as that given in the original definition or in mixed contexts (same and new contexts). Subjects were then tested after 24 hours, a week and a month on their ability to identify new examples as belonging to one of the conceptual rules studied (transfer tests). Both patients showed substantial learning. Patient A.G. was slow and dependent of the first letter cues in the vanishing-cues learning phase but nevertheless, she acquired a large and flexible conceptual knowledge and this was especially true for concepts that were practised by means of mixed-context examples. Patient G.S. easily learned to associate the definitions with the concept names but her conceptual knowledge remained more limited. These results confirm the existence of a semantic learning ability in amnesic patients. They also suggest that under appropriate learning conditions, amnesics may eventually acquire a new flexible conceptual knowledge.

[The concept of health and disease].

PubMed

Ruíz, R H

1976-12-01

1. The author reviews some current concepts concerning the definitions and uses of the concepts of health and illness. Starting from the definitions in Psychiatry, "normality" is considered from the statistic, the normative and the clinical standpoints, and as a part of a continuum stretching from health to illness. Several approaches are analyzed, among which Wittaker's, who sets forth the following indicators of normality: a) self-knowledge; b) self-esteem; c) self-security; d) capacity for giving and receiving affection; e) satisfaction of corporal needs; f) productivity and capacity for happiness; g) lack of tensions and of hipersensitivity. 2. The concept of illness as an operative concept is also analyzed, leading to the following statements: a) it is inexistent in non-biological sciences; b) it appears in social sciences only through extrapolation; c) in medicine it means the breacking of homeosthasis; d) in psychology and dynamic psychiatry it means the abnormal stressing of normal mechanisms, common to all persons. 3. The concept of health as equilibrium is also analyzed, with the following precisions: a) equilibrium is defined within a system as affecting the whole of it, and implying transformation and self-regulation; b) homeosthasis is a case of equilibrium for steady complex systems; c) adaptation is the maintenance of equilibrium when there are exchanges with the evironment. 4. Finally, those concepts are applied to mental illness and its limits, and the following criteria are set forth: a) amount of anguish; b) depression related to its motives, intensity, persistence and frequency; c) regression to previous development stages; d) use of defense mechanisms in an inadequate or stereotyped way.

Concept Mapping Using Cmap Tools to Enhance Meaningful Learning

NASA Astrophysics Data System (ADS)

Cañas, Alberto J.; Novak, Joseph D.

Concept maps are graphical tools that have been used in all facets of education and training for organizing and representing knowledge. When learners build concept maps, meaningful learning is facilitated. Computer-based concept mapping software such as CmapTools have further extended the use of concept mapping and greatly enhanced the potential of the tool, facilitating the implementation of a concept map-centered learning environment. In this chapter, we briefly present concept mapping and its theoretical foundation, and illustrate how it can lead to an improved learning environment when it is combined with CmapTools and the Internet. We present the nationwide “Proyecto Conéctate al Conocimiento” in Panama as an example of how concept mapping, together with technology, can be adopted by hundreds of schools as a means to enhance meaningful learning.

Learning style preference and student aptitude for concept maps.

PubMed

Kostovich, Carol T; Poradzisz, Michele; Wood, Karen; O'Brien, Karen L

2007-05-01

Acknowledging that individuals' preferences for learning vary, faculty in an undergraduate nursing program questioned whether a student's learning style is an indicator of aptitude in developing concept maps. The purpose of this research was to describe the relationship between nursing students' learning style preference and aptitude for concept maps. The sample included 120 undergraduate students enrolled in the adult health nursing course. Students created one concept map and completed two instruments: the Learning Style Survey and the Concept Map Survey. Data included Learning Style Survey scores, grade for the concept map, and grade for the adult health course. No significant difference was found between learning style preference and concept map grades. Thematic analysis of the qualitative survey data yielded further insight into students' preferences for creating concept maps.

The Impact of Vision Impairment on Students' Self-Concept

ERIC Educational Resources Information Center

Datta, Poulomee; Talukdar, Joy

2016-01-01

This study investigated the self-concept of students with vision impairment who were placed in specialist and mainstream educational settings in South Australia. Self-Concept was explored across six dimensions, namely Physical, Moral, Personal, Family, Social and Academic Self-Concepts and the Total Self-Concept. The "Tennessee Self-Concept…

Strolling Toward New Concepts.

PubMed

Ito, Koreaki

2016-09-08

For more than four decades now, I have been studying how genetic information is transformed into protein-based cellular functions. This has included investigations into the mechanisms supporting cellular localization of proteins, disulfide bond formation, quality control of membranes, and translation. I tried to extract new principles and concepts that are universal among living organisms from our observations of Escherichia coli. While I wanted to distill complex phenomena into basic principles, I also tried not to overlook any serendipitous observations. In the first part of this article, I describe personal experiences during my studies of the Sec pathway, which have centered on the SecY translocon. In the second part, I summarize my views of the recent revival of translation studies, which has given rise to the concept that nonuniform polypeptide chain elongation is relevant for the subsequent fates of newly synthesized proteins. Our studies of a class of regulatory nascent polypeptides advance this concept by showing that the dynamic behaviors of the extraribosomal part of the nascent chain affect the ongoing translation process. Vibrant and regulated molecular interactions involving the ribosome, mRNA, and nascent polypeptidyl-tRNA are based, at least partly, on their autonomously interacting properties.

C.A.D. and ergonomic workstations conception

NASA Astrophysics Data System (ADS)

Keravel, Francine

1986-07-01

Computer Aided Design is able to perform workstation's conception. An ergonomic data could be complete this view and warrant a coherent fiability conception. Complexe form representation machines, anthropometric data and environment factors are allowed to perceive the limit points between humain and new technology situation. Work ability users, safety, confort and human efficiency could be also included. Such a programm with expert system integration will give a complete listing appreciation about workstation's conception.

The concept of hierarchy in general systems theory.

PubMed

Gasparski, W

1994-01-01

The paper reviews main ideas related to the concept of hierarchy as they are discussed in contemporary general systems theory. After presenting a dictionary definition of the concept, the author examines the intuitive idea of hierarchy quoting Mario Bunge's notion of level structure. Then relationship between two other concepts: a system and a hierarchy is characterised on the bases of Bowler's, Bunge's again, Klir's, and the author's studies. Finally, the paper is concluded that hierarchy is not an otological concept but epistemological one.

Self-advocacy and cancer: a concept analysis.

PubMed

Hagan, Teresa L; Donovan, Heidi S

2013-10-01

To report an analysis of the concept of self-advocacy among individuals with cancer to clarify its meaning, to differentiate this meaning with related concepts, and to unify understanding of the concept in cancer research and practice. Cancer survivors are increasingly required to assume an active role in their health care. A thorough analysis of how survivors advocate for themselves is a crucial aspect in supporting survivors' ability to engage and manage their care throughout all stages of cancer survivorship. Walker and Avant's eight-step process of conducting a concept analysis was used. PubMed, PsycINFO, and CINAHL databases were searched for articles, reviews, editorials, and grey literature directly addressing self-advocacy. A broad inquiry into the literature from 1960 to 2012 that produces a definition of self-advocacy. Model and contrary cases of self-advocacy demonstrate the concept's application and intricacies. Antecedents to self-advocacy include particular personal characteristics, learned skills, and attainable support. The essential element of self-advocacy and what differentiates it from related concepts, is the internalization of these antecedent resources into self-advocacy thoughts and actions while incorporating personal values and priorities in a way that upholds the survivors' goals and beliefs. A full realization of self-advocacy facilitates a cancer survivor attaining a strong self-concept, sense of control, and adaptation to a life with cancer. Self-advocacy is a process of internalizing skills and resources to act in a way that supports survivors' needs and goals. © 2013 Blackwell Publishing Ltd.

Communications payload concepts for geostationary facilities

NASA Technical Reports Server (NTRS)

Poley, William A.; Lekan, Jack

1987-01-01

Summarized and compared are the major results of two NASA sponsored studies that defined potential communication payload concepts to meet the satellite traffic forecast for the turn of the century for the continental US and Region 2 of the International Telecommunications Union. The studies were performed by the Ford Aerospace and Communications Corporation and RCA Astro-Electronics (now GE-RCA Astro-Space Division). Future scenarios of aggregations of communications services are presented. Payload concepts are developed and defined in detail for nine of the scenarios. Payload costs and critical technologies per payload are also presented. Finally the payload concepts are compared and the findings of the reports are discussed.

Mars Rover Concept Vehicle

NASA Image and Video Library

2017-06-05

The scientifically-themed Mars rover concept vehicle operates on an electric motor, powered by solar panels and a 700-volt battery. The back section opens and serves as a laboratory which can disconnect for autonomous research. While this exact rover is not expected to operate on Mars, one or more of its elements could make its way into a rover astronauts will drive on the Red Planet. The "Summer of Mars" promotion is designed to provide guests with a better understanding of NASA's studies of the Red Planet. The builders of the rover, Parker Brothers Concepts of Port Canaveral, Florida, incorporated input into its design from NASA subject matter experts.

Mars Rover Concept Vehicle

NASA Image and Video Library

2017-06-05

The scientifically-themed Mars rover concept vehicle operates on an electric motor, powered by solar panels and a 700-volt battery. The rover separates in the middle with the front area designed for scouting and equipped with a radio and navigation provided by the Global Positioning System. The back section serves as a full laboratory which can disconnect for autonomous research. The "Summer of Mars" promotion is designed to provide guests with a better understanding of NASA's studies of the Red Planet. The builders of the rover, Parker Brothers Concepts of Port Canaveral, Florida, incorporated input into its design from NASA subject matter experts.

What Oceanography Concepts are Taught in Ohio's Schools?

ERIC Educational Resources Information Center

Skinner, Ray, Jr.; Martin, Ralph E., Jr.

1985-01-01

A survey listing 21 major oceanographic concepts and several sub-concepts was mailed to all Ohio earth science teachers. Respondents indicated that most of the oceanography topics taught were geologically-oriented. Oceanography concepts relating to ecology, chemical, physical or life science are considered less important. (DH)

Evidence of coordination as a cure for concept eliminativism.

PubMed

Scarantino, Andrea

2010-06-01

I argue that Machery stacks the deck against hybrid theories of concepts by relying on an unduly restrictive understanding of coordination between concept parts. Once a less restrictive notion of coordination is introduced, the empirical case for hybrid theories of concepts becomes stronger, and the appeal of concept eliminativism weaker.

Identifying Threshold Concepts in the Careers of Educational Developers

ERIC Educational Resources Information Center

Timmermans, Julie A.

2014-01-01

The purpose of this multiple case study was to identify threshold concepts in the careers of educational developers. Twenty-one common threshold concepts emerged, with one threshold concept common among all participants: Facilitating a change process. The remaining 20 threshold concepts were captured in the following three categories: (1) Ways of…

SELF-CONCEPT OF THE SCHOOL COUNSELLOR.

ERIC Educational Resources Information Center

ISABELLE, L. A.

THERE IS A NEED FOR COUNSELORS TO DEVELOP A VOCATIONAL SELF-CONCEPT WHICH WOULD SERVE AS A GUIDE DURING THEIR PROFESSIONAL GROWTH. BASED ON SUPER'S THEORY AND DEFINITIONS, THE CRITICAL POINTS IN COUNSELOR VOCATIONAL SELF-CONCEPT DEVELOPMENT INCLUDE THE EXPLORATORY, REALITY TESTING, AND THE ESTABLISHMENT STAGES. THE COUNSELOR VOCATIONAL-EDUCATION…

Teaching Striking/Fielding Concepts in Cricket

ERIC Educational Resources Information Center

Turner, Adrian P.

2004-01-01

This article presents activities for developing striking/fielding concepts in modified cricket games. Though not as familiar to American children, cricket is emerging as the second (to soccer) most popular game in the world. The novelty of the skills provides an appropriate learning challenge for all students while reinforcing concepts and…

Identification of Threshold Concepts for Biochemistry

ERIC Educational Resources Information Center

Loertscher, Jennifer; Green, David; Lewis, Jennifer E.; Lin, Sara; Minderhout, Vicky

2014-01-01

Threshold concepts (TCs) are concepts that, when mastered, represent a transformed understanding of a discipline without which the learner cannot progress. We have undertaken a process involving more than 75 faculty members and 50 undergraduate students to identify a working list of TCs for biochemistry. The process of identifying TCs for…

Applying Threshold Concepts to Finance Education

ERIC Educational Resources Information Center

Hoadley, Susan; Wood, Leigh N.; Tickle, Leonie; Kyng, Tim

2016-01-01

Purpose: The purpose of this paper is to investigate and identify threshold concepts that are the essential conceptual content of finance programmes. Design/Methodology/Approach: Conducted in three stages with finance academics and students, the study uses threshold concepts as both a theoretical framework and a research methodology. Findings: The…

Explicating the Concept of Contrapositive Equivalence

ERIC Educational Resources Information Center

Dawkins, Paul Christian; Hub, Alec

2017-01-01

This paper sets forth a concept (Simon, 2017) of contrapositive equivalence and explores some related phenomena of learning through a case study of Hugo's learning in a teaching experiment guiding the reinvention of mathematical logic. Our proposed concept of contrapositive equivalence rests upon set-based meanings for mathematical categories and…

Implementation of green infrastructure concept in Citarum Watershed

NASA Astrophysics Data System (ADS)

Maryati, Sri; Humaira, An Nisaa'Siti

2017-03-01

Green infrastructure has several benefits compared to grey infrastructure in term of environmental services and sustainability, such as reducing energy consumption, improving air quality, providing carbon sequestration, and increasing property values. Nevertheless in practice, the implementation of the concept in Indonesia is still limited. Implementation of the certain concept has to be guided in planning document. In this paper, green infrastructure concept in the current spatial plan and other planning documents is assessed. The purpose of this research is to figure out how far the green infrastructure concept is integrated into planning system, based on the analysis of planning documents in Citarum Watershed and expert interviews with local stakeholders. Content analysis method is used to analyze the documents and result of interview. The result shows that green infrastructure concept has not been accommodated in spatial plan or other planning documents widely. There are some challenges in implementing the concept including reward and punishment system (incentive and disincentive), coordination, and lack of human resources.

Aerodynamically-Actuated Radical Shape-Change Concept

NASA Technical Reports Server (NTRS)

Ivanco, Thomas G.; Ivanco, Marie L.; Ancel, Ersin; Grubb, Amanda L.; Prasad, Supranamaaya

2017-01-01

Aerodynamically-actuated radical shape change (AARSC) is a novel concept that enables flight vehicles to conduct a mission profile containing radically different flight regimes while possibly mitigating the typical penalties incurred by radical geometric change. Weight penalties are mitigated by utilizing a primary flight control to generate aerodynamic loads that then drive a shape-change actuation. The flight mission profile used to analyze the AARSC concept is that of a transport aircraft that cruises at a lower altitude than typical transports. Based upon a preliminary analysis, substantial fuel savings are realized for mission ranges below 2000 NM by comparison to a state-of-the-art baseline, with an increasing impact as mission range is reduced. The predicted savings are so significant at short-haul ranges that the shape-change concept rivals the fuel-burn performance of turboprop aircraft while completing missions in less time than typical jet aircraft. Lower-altitude cruise has also been sought after in recent years for environmental benefits, however, the performance penalty to conventional aircraft was prohibitive. AARSC may enable the opportunity to realize the environmental benefits of lower-altitude emissions coupled with mission fuel savings. The findings of this study also reveal that the AARSC concept appears to be controllable, turbulence susceptibility is likely not an issue, and the shape change concept appears to be mechanically and aerodynamically feasible.

How to Help Your Students Recall New Concepts Better.

ERIC Educational Resources Information Center

Hodges, Daniel L.

Students' difficulties in assimilating new concepts can be a barrier to learning and may be exacerbated if the concepts are introduced in terms of detailed verbal definitions. Cognitive psychology suggests that a better approach to teaching new concepts may be to use prototypical examples of the concept as building-blocks from which verbal…

Using the Concept Attainment Strategy to Enhance Reading Comprehension

ERIC Educational Resources Information Center

Boulware, Beverly J.; Crow, Mary Lynn

2008-01-01

The Concept Attainment Strategy is an instructional technique proposed by Jerome Bruner that targets the "big idea" or concept underlining concrete or abstract examples. This strategy focuses on the developing comprehension of words and ideas associated with a concept rather than on its name or what the concept is called. Specifically it develops…

Concept Teaching in Instrumental Music Education: A Literature Review

ERIC Educational Resources Information Center

Tan, Leonard

2017-01-01

This article is a review of research literature on the teaching of concepts in instrumental music education. It is organized in four parts (a) the value of concept teaching in large instrumental ensembles, (b) time spent teaching concepts during rehearsals, (c) approaches to concept teaching, and (d) implications for music education. Research has…

Concept for Mars Volcanic Emission Life Scout 3-D Artist Concept

NASA Image and Video Library

2004-12-21

This artist rendition depicts a concept for a Mars orbiter that would scrutinize the martian atmosphere for chemical traces of life or environments supportive of life that might be present anywhere on the planet. 3D glasses are necessary.

[A concept analysis of assertiveness].

PubMed

Park, Hyoung-Sook; Yang, Young-Ok

2006-06-01

The purpose of this study was to analyze and clarify the meaning of the concept, assertiveness. This study used Walker and Avant's process of concept analysis. 1. Attributes of assertiveness were defined as 1) Self-esteem 2) Comprehension to others 3) Clarification of the subject 4) Verbal communication 5) Non-verbal communication. 2. The antecedents of assertiveness consist of these facts 1) The occurrence of a conflict situation 2) The occurrence of will to stick to one's opinions. 3. There are consequences occurring as a result of assertiveness 1) Positive self-confidence 2) Increased comprehension or consideration to others 3) Expand of mutual respect 4) Maintenance of continuously cooperative relationship with each other 5) Output of acceptable results to each other. Assertiveness is a core human behavior and is key to interpersonal relationships. Using the components of the concept of assertiveness, many conflicts in a nursing situation can be effectively prevented.

Identifying UMLS concepts from ECG Impressions using KnowledgeMap

PubMed Central

Denny, Joshua C.; Spickard, Anderson; Miller, Randolph A; Schildcrout, Jonathan; Darbar, Dawood; Rosenbloom, S. Trent; Peterson, Josh F.

2005-01-01

Electrocardiogram (ECG) impressions represent a wealth of medical information for potential decision support and drug-effect discovery. Much of this information is inaccessible to automated methods in the free-text portion of the ECG report. We studied the application of the KnowledgeMap concept identifier (KMCI) to map Unified Medical Language System (UMLS) concepts from ECG impressions. ECGs were processed by KMCI and the results scored for accuracy by multiple raters. Reviewers also recorded unidentified concepts through the scoring interface. Overall, KMCI correctly identified 1059 out of 1171 concepts for a recall of 0.90. Precision, indicating the proportion of ECG concepts correctly identified, was 0.94. KMCI was particularly effective at identifying ECG rhythms (330/333), perfusion changes (65/66), and noncardiac medical concepts (11/11). In conclusion, KMCI is an effective method for mapping ECG impressions to UMLS concepts. PMID:16779029

Harmonising the Microsystem of the Educational Concept "Competence"

ERIC Educational Resources Information Center

Pukelis, Kestutis; Smetona, Antanas

2012-01-01

Various texts related to education policy and education research have recently started using two conjugate concepts "competency" and "competence". These terms are sometimes treated as synonyms of a single concept; however, in other cases they are separated and used as two terms of different educational concepts. English also…

Academics' Conceptions of Assessment and Their Assessment Practices

ERIC Educational Resources Information Center

Postareff, Liisa; Virtanen, Viivi; Katajavuori, Nina; Lindblom-Ylanne, Sari

2012-01-01

The present study focuses; firstly, on analysing academics' conceptions of the purpose of assessment; secondly, on their assessment practices; and thirdly, on the relationship between their conceptions and practices. The data consisted of interviews with 28 pharmacy teachers. The analysis resulted in a continuum of categories of conceptions, from…

Development and Validation of the Homeostasis Concept Inventory

ERIC Educational Resources Information Center

McFarland, Jenny L.; Price, Rebecca M.; Wenderoth, Mary Pat; Martinková, Patrícia; Cliff, William; Michael, Joel; Modell, Harold; Wright, Ann

2017-01-01

We present the Homeostasis Concept Inventory (HCI), a 20-item multiple-choice instrument that assesses how well undergraduates understand this critical physiological concept. We used an iterative process to develop a set of questions based on elements in the Homeostasis Concept Framework. This process involved faculty experts and undergraduate…

Understanding critical health literacy: a concept analysis.

PubMed

Sykes, Susie; Wills, Jane; Rowlands, Gillian; Popple, Keith

2013-02-18

Interest in and debates around health literacy have grown over the last two decades and key to the discussions has been the distinction made between basic functional health literacy, communicative/interactive health literacy and critical health literacy. Of these, critical health literacy is the least well developed and differing interpretations of its constituents and relevance exist. The aim of this study is to rigorously analyse the concept of critical health literacy in order to offer some clarity of definition upon which appropriate theory, well grounded practice and potential measurement tools can be based. The study uses a theoretical and colloquial evolutionary concept analysis method to systematically identify the features associated with this concept. A unique characteristic of this method is that it practically combines an analysis of the literature with in depth interviews undertaken with practitioners and policy makers who have an interest in the field. The study also analyses how the concept is understood across the contexts of time, place, discipline and use by health professionals, policy makers and academics. Findings revealed a distinct set of characteristics of advanced personal skills, health knowledge, information skills, effective interaction between service providers and users, informed decision making and empowerment including political action as key features of critical health literacy. The potential consequences of critical health literacy identified are in improving health outcomes, creating more effective use of health services and reducing inequalities in health thus demonstrating the relevance of this concept to public health and health promotion. While critical health literacy is shown to be a unique concept, there remain significant contextual variations in understanding particularly between academics, practitioners and policy makers. Key attributes presented as part of this concept when it was first introduced in the literature

Understanding critical health literacy: a concept analysis

PubMed Central

2013-01-01

Background Interest in and debates around health literacy have grown over the last two decades and key to the discussions has been the distinction made between basic functional health literacy, communicative/interactive health literacy and critical health literacy. Of these, critical health literacy is the least well developed and differing interpretations of its constituents and relevance exist. The aim of this study is to rigorously analyse the concept of critical health literacy in order to offer some clarity of definition upon which appropriate theory, well grounded practice and potential measurement tools can be based. Method The study uses a theoretical and colloquial evolutionary concept analysis method to systematically identify the features associated with this concept. A unique characteristic of this method is that it practically combines an analysis of the literature with in depth interviews undertaken with practitioners and policy makers who have an interest in the field. The study also analyses how the concept is understood across the contexts of time, place, discipline and use by health professionals, policy makers and academics. Results Findings revealed a distinct set of characteristics of advanced personal skills, health knowledge, information skills, effective interaction between service providers and users, informed decision making and empowerment including political action as key features of critical health literacy. The potential consequences of critical health literacy identified are in improving health outcomes, creating more effective use of health services and reducing inequalities in health thus demonstrating the relevance of this concept to public health and health promotion. Conclusions While critical health literacy is shown to be a unique concept, there remain significant contextual variations in understanding particularly between academics, practitioners and policy makers. Key attributes presented as part of this concept when it was

A modular framework for biomedical concept recognition

PubMed Central

2013-01-01

Background Concept recognition is an essential task in biomedical information extraction, presenting several complex and unsolved challenges. The development of such solutions is typically performed in an ad-hoc manner or using general information extraction frameworks, which are not optimized for the biomedical domain and normally require the integration of complex external libraries and/or the development of custom tools. Results This article presents Neji, an open source framework optimized for biomedical concept recognition built around four key characteristics: modularity, scalability, speed, and usability. It integrates modules for biomedical natural language processing, such as sentence splitting, tokenization, lemmatization, part-of-speech tagging, chunking and dependency parsing. Concept recognition is provided through dictionary matching and machine learning with normalization methods. Neji also integrates an innovative concept tree implementation, supporting overlapped concept names and respective disambiguation techniques. The most popular input and output formats, namely Pubmed XML, IeXML, CoNLL and A1, are also supported. On top of the built-in functionalities, developers and researchers can implement new processing modules or pipelines, or use the provided command-line interface tool to build their own solutions, applying the most appropriate techniques to identify heterogeneous biomedical concepts. Neji was evaluated against three gold standard corpora with heterogeneous biomedical concepts (CRAFT, AnEM and NCBI disease corpus), achieving high performance results on named entity recognition (F1-measure for overlap matching: species 95%, cell 92%, cellular components 83%, gene and proteins 76%, chemicals 65%, biological processes and molecular functions 63%, disorders 85%, and anatomical entities 82%) and on entity normalization (F1-measure for overlap name matching and correct identifier included in the returned list of identifiers: species 88

Concept Development of the Eindhoven Diabetes Education Simulator Project.

PubMed

Maas, Anne H; van der Molen, Pieta; van de Vijver, Reinier; Chen, Wei; van Pul, Carola; Cottaar, Eduardus J E; van Riel, Natal A W; Hilbers, Peter A J; Haak, Harm R

2016-04-01

This study was designed to define the concept of an educational diabetes game following a user-centered design approach. The concept development of the Eindhoven Diabetes Education Simulator (E-DES) project can be divided in two phases: concept generation and concept evaluation. Four concepts were designed by the multidisciplinary development team based on the outcomes of user interviews. Four other concepts resulted from the Diabetes Game Jam. Several users and experts evaluated the concepts. These user evaluations and a feasibility analysis served as input for an overall evaluation and discussion by the development team resulting in the final concept choice. The four concepts of the development team are a digital board game, a quiz platform, a lifestyle simulator, and a puzzle game. The Diabetes Game Jam resulted in another digital board game, two mobile swipe games, and a fairy tale-themed adventure game. The combined user evaluations and feasibility analysis ranked the quiz platform and the digital board game equally high. Each of these games fits one specific subgroup of users best: the quiz platform best fits an eager-to-learn, more individualistic patient, whereas the board game best fits a less-eager-to-learn, family-oriented patient. The choice for a specific concept is therefore highly dependent on the choice of our specific target audience. The user-centered design approach with multiple evaluations has enabled us to choose the most promising concept from eight different options. A digital board game is chosen for further development because the target audience for E-DES is the less-motivated, family-oriented patients.

The concept of work ability.

PubMed

Tengland, Per-Anders

2011-06-01

The concept of "work ability" is central for many sciences, especially for those related to working life and to rehabilitation. It is one of the important concepts in legislation regulating sickness insurance. How the concept is defined therefore has important normative implications. The concept is, however, often not sufficiently well defined. AIM AND METHOD The objective of this paper is to clarify, through conceptual analysis, what the concept can and should mean, and to propose a useful definition for scientific and practical work. RESULTS Several of the defining characteristics found in the literature are critically scrutinized and discussed, namely health, basic standard competence, occupational competence, occupational virtues, and motivation. These characteristics are related to the work tasks and the work environment. One conclusion is that we need two definitions of work ability, one for specific jobs that require special training or education, and one for jobs that most people can manage given a short period of practice. Having work ability, in the first sense, means having the occupational competence, the health required for the competence, and the occupational virtues that are required for managing the work tasks, assuming that the tasks are reasonable and that the work environment is acceptable. In the second sense, having work ability is having the health, the basic standard competence and the relevant occupational virtues required for managing some kind of job, assuming that the work tasks are reasonable and that the work environment is acceptable. CONCLUSION These definitions give us tools for understanding and discussing the complex, holistic and dynamic aspects of work ability, and they can lay the foundations for the creation of instruments for evaluating work ability, as well as help formulate strategies for rehabilitation.

A thrust-sheet propulsion concept using fissionable elements

NASA Technical Reports Server (NTRS)

Moeckel, W. E.

1976-01-01

A space propulsion concept is proposed and analyzed which consists of a thin sheet coated on one side with fissionable material, so that nuclear power is converted directly into propulsive power. Thrust is available both from ejected fission fragments and from thermal radiation. Optimum thicknesses are determined for the active and substrate layers. This concept is shown to have potential mission capability (in terms of velocity increments) superior to that of all other advanced propulsion concepts for which performance estimates are available. A suitable spontaneously fissioning material such as Cf254 could provide an extremely high-performance first stage beyond earth orbit. In contrast with some other advanced nuclear propulsion concepts, there is no minimum size below which this concept is infeasible.

A thrust-sheet propulsion concept using fissionable elements

NASA Technical Reports Server (NTRS)

Moeckel, W. E.

1976-01-01

A space propulsion concept is proposed and analyzed which consists of a thin sheet coated on one side with fissionable material, so that nuclear power is converted directly into propulsive power. Thrust is available both from ejected fission fragments and from thermal radiation. Optimum thicknesses are determined for the active and substrate layers. This concept is shown to have potential mission capability (in terms of velocity increments) superior to that of all other advanced propulsion concepts for which performance estimates are available. A suitable spontaneously fissioning material such as Cf-254 could provide an extremely high-performance first stage beyond earth orbit. In contrast with some other advanced nuclear propulsion concepts, there is no minimum size below which this concept is infeasible.

Low self-concept in poor readers: prevalence, heterogeneity, and risk

PubMed Central

Castles, Anne; Kohnen, Saskia; Banales, Erin

2016-01-01

There is evidence that poor readers are at increased risk for various types of low self-concept—particularly academic self-concept. However, this evidence ignores the heterogeneous nature of poor readers, and hence the likelihood that not all poor readers have low self-concept. The aim of this study was to better understand which types of poor readers have low self-concept. We tested 77 children with poor reading for their age for four types of self-concept, four types of reading, three types of spoken language, and two types of attention. We found that poor readers with poor attention had low academic self-concept, while poor readers with poor spoken language had low general self-concept in addition to low academic self-concept. In contrast, poor readers with typical spoken language and attention did not have low self-concept of any type. We also discovered that academic self-concept was reliably associated with reading and receptive spoken vocabulary, and that general self-concept was reliably associated with spoken vocabulary. These outcomes suggest that poor readers with multiple impairments in reading, language, and attention are at higher risk for low academic and general self-concept, and hence need to be assessed for self-concept in clinical practice. Our results also highlight the need for further investigation into the heterogeneous nature of self-concept in poor readers. PMID:27867764

Advanced Concept Modeling

NASA Technical Reports Server (NTRS)

Chaput, Armand; Johns, Zachary; Hodges, Todd; Selfridge, Justin; Bevirt, Joeben; Ahuja, Vivek

2015-01-01

Advanced Concepts Modeling software validation, analysis, and design. This was a National Institute of Aerospace contract with a lot of pieces. Efforts ranged from software development and validation for structures and aerodynamics, through flight control development, and aeropropulsive analysis, to UAV piloting services.

Measuring the Computer-Related Self-Concept

ERIC Educational Resources Information Center

Langheinrich, Jessica; Schönfelder, Mona; Bogner, Franz X.

2016-01-01

A positive self-concept supposedly affects a student's well-being as well as his or her perception of individual competence at school. As computer-based learning is becoming increasingly important in school, a positive computer-related self-concept (CSC) might help to enhance cognitive achievement. Consequently, we focused on establishing a short,…

42 CFR 419.40 - Payment concepts.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false Payment concepts. 419.40 Section 419.40 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED... Hospitals § 419.40 Payment concepts. (a) In addition to the payment rate described in § 419.32, for each APC...

Unified Technical Concepts. Math for Technicians.

ERIC Educational Resources Information Center

Center for Occupational Research and Development, Inc., Waco, TX.

Unified Technical Concepts (UTC) is a modular system for teaching applied physics in two-year postsecondary technician programs. This UTC classroom textbook, consisting of 10 chapters, deals with mathematical concepts as they apply to the study of physics. Addressed in the individual chapters of the text are the following topics: angles and…

Deep understanding of electromagnetism using crosscutting concepts

NASA Astrophysics Data System (ADS)

De Poorter, John; De Lange, Jan; Devoldere, Lies; Van Landeghem, Jouri; Strubbe, Katrien

2017-01-01

Crosscutting concepts like patterns and models are fundamental parts in both the American framework of science education (from the AAAS) and our proposals for a new science education framework in Flanders. These concepts deepen the insight of both students and teachers. They help students to ask relevant questions during an inquiry and they give an understanding in how scientists built up their scientific theories. We illustrate the didactical possibilities of crosscutting concepts within the field of electromagnetism.

Concept formation: a supportive process for early career nurses.

PubMed

Thornley, Tracey; West, Sandra

2010-09-01

Individuals come to understand abstract constructs such as that of the 'expert' through the formation of concepts. Time and repeated opportunity for observation to support the generalisation and abstraction of the developing concept are essential if the concept is to form successfully. Development of an effective concept of the 'expert nurse' is critical for early career nurses who are attempting to integrate theory, values and beliefs as they develop their clinical practice. This study explores the use of a concept development framework in a grounded theory study of the 'expert nurse'. Qualitative. Using grounded theory methods for data collection and analysis, semi-structured interviews were conducted with registered nurses. The participants were asked to describe their concept of the 'expert nurse' and to discuss their experience of developing this. Participants reported forming their concept of the 'expert nurse', after multiple opportunities to engage with nurses identified as 'expert'. This identification did not necessarily relate to the designated position of the 'expert nurse' or assigned mentors. When the early career nurse does not successfully form a concept of the 'expert nurse', difficulties in personal and professional development including skill/knowledge development may arise. To underpin development of their clinical practice effectively, early career nurses need to be provided with opportunities that facilitate the purposive formation of their own concept of the 'expert nurse'. Formation of this concept is not well supported by the common practice of assigning mentors. Early career nurses must be provided with the time and the opportunity to individually develop and refine their concept of the 'expert nurse'. To achieve this, strategies including providing opportunities to engage with expert nurses and discussion of the process of concept formation and its place in underpinning personal judgments may be of assistance. © 2010 Blackwell Publishing

[Health literacy - a concept for professional nursing?].

PubMed

Thilo, F; Sommerhalder, K; Hahn, S

2012-12-01

Research results show that health literacy is an important concept in nursing. It has a positive effect on the health of individuals as well as on the costs of the healthcare system. The results of a comprehensive literature search (1980 - March 2009) revealed that the concept of health literacy is being increasingly discussed; however, the concept is barely addressed in literature specific to nursing. The existing definitions of health literacy are formulated predominantly within the medical context. Only one study from the United States analyzed the concept within the context of nursing care. The concept of health literacy is highly relevant because its' aim is to empower the patients, along with their relatives, in dealing with health and disease. In order to thoroughly examine health literacy, it must first be reviewed conceptually within the context of the profession of nursing. This has occurred in this article. The specific terms relevant to health literacy were identified. Moreover, an operational definition for health literacy was developed for the professional nursing setting. Possibilities for nursing practice, due to the conceptualization of health literacy, are discussed.

Threshold concepts in finance: conceptualizing the curriculum

NASA Astrophysics Data System (ADS)

Hoadley, Susan; Tickle, Leonie; Wood, Leigh N.; Kyng, Tim

2015-08-01

Graduates with well-developed capabilities in finance are invaluable to our society and in increasing demand. Universities face the challenge of designing finance programmes to develop these capabilities and the essential knowledge that underpins them. Our research responds to this challenge by identifying threshold concepts that are central to the mastery of finance and by exploring their potential for informing curriculum design and pedagogical practices to improve student outcomes. In this paper, we report the results of an online survey of finance academics at multiple institutions in Australia, Canada, New Zealand, South Africa and the United Kingdom. The outcomes of our research are recommendations for threshold concepts in finance endorsed by quantitative evidence, as well as a model of the finance curriculum incorporating finance, modelling and statistics threshold concepts. In addition, we draw conclusions about the application of threshold concept theory supported by both quantitative and qualitative evidence. Our methodology and findings have general relevance to the application of threshold concept theory as a means to investigate and inform curriculum design and delivery in higher education.

Thinking Process of Pseudo Construction in Mathematics Concepts

ERIC Educational Resources Information Center

Subanji; Nusantara, Toto

2016-01-01

This article aims at studying pseudo construction of student thinking in mathematical concepts, integer number operation, algebraic forms, area concepts, and triangle concepts. 391 junior high school students from four districts of East Java Province Indonesia were taken as the subjects. Data were collected by means of distributing the main…

Academic Self-Concept, Gender and Single-Sex Schooling

ERIC Educational Resources Information Center

Sullivan, Alice

2009-01-01

This article assesses gender differences in academic self-concept for a cohort of children born in 1958 (the National Child Development Study). It addresses the question of whether attending single-sex or co-educational schools affected students' perceptions of their own academic abilities (academic self-concept). Academic self-concept was found…

Students' Conceptions of the "Reality Status" of Electrons.

ERIC Educational Resources Information Center

Mashhadi, Azam; Woolnough, Brian

Science has many explanatory concepts that have been proposed to account for the observable features of things. Such explanatory concepts often have associated with them hidden or unseen "theoretical entities." The electron is a key concept in understanding phenomena described by science. The question arises, however, as to how students…

Argumentation and Concept Development: The Role of Imagination

ERIC Educational Resources Information Center

Larraín, Antonia

2017-01-01

Vygotsky stated that concepts cannot be transmitted from mind to mind but instead developed through communication. Specifically, the instructional use of language would be the means for concept development. However, there is evidence to show that school concepts are particularly difficult to develop. Argumentation has been shown to promote the…

Evaluation of Students' Energy Conception in Environmental Science

ERIC Educational Resources Information Center

Park, Mihwa; Johnson, Joseph A.

2016-01-01

While significant research has been conducted on students' conceptions of energy, alternative conceptions of energy have not been actively explored in the area of environmental science. The purpose of this study is to examine students' alternative conceptions in the environmental science discipline through the analysis of responses of first year…

Teachers' Concepts of Spatial Scale: An International Comparison

ERIC Educational Resources Information Center

Jones, M. Gail; Paechter, Manuela; Yen, Chiung-Fen; Gardner, Grant; Taylor, Amy; Tretter, Thomas

2013-01-01

Metric scale is an important concept taught as part of science curricula across different countries. This study explored metric and relative (body-length) scale concepts of inservice ("N"?=?92) and preservice ("N"?=?134) teachers from Austria, and Taiwan, and their concepts were compared with those of teachers from the USA.…

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…

Concept Mapping for Critical Thinking: Efficacy, Timing, & Type

ERIC Educational Resources Information Center

Harris, Charles M.; Zha, Shenghua

2017-01-01

Many college students are not progressing in the development of their critical thinking skills. Concept mapping is a technique for facilitating validation of one's critical thinking by graphically depicting the structure of complex concepts. Each of our three studies of concept mapping involved approximately 240 students enrolled in four sections…

A Rational Analysis of Rule-Based Concept Learning

ERIC Educational Resources Information Center

Goodman, Noah D.; Tenenbaum, Joshua B.; Feldman, Jacob; Griffiths, Thomas L.

2008-01-01

This article proposes a new model of human concept learning that provides a rational analysis of learning feature-based concepts. This model is built upon Bayesian inference for a grammatically structured hypothesis space--a concept language of logical rules. This article compares the model predictions to human generalization judgments in several…

Taiwanese Students' Alternative Conceptions of Animal Biodiversity

ERIC Educational Resources Information Center

Yen, Chiung-Fen; Yao, Tsung-Wei; Mintzes, Joel J.

2007-01-01

This study explored and documented Taiwanese students' alternative conceptions of animal classification. We examined the understanding of the "animal", "vertebrate" and "invertebrate", "fish", "amphibian", "reptile", "bird", and "mammal" concepts among elementary,…

Translational research: a concept analysis.

PubMed

Wendler, M Cecilia; Kirkbride, Geri; Wade, Kristen; Ferrell, Lynne

2013-01-01

BACKGROUND/CONCEPTUAL FRAMEWORK: Little is known about which approaches facilitate adoption and sustainment of evidence-based practice change in the highly complex care environments that constitute clinical practice today. The purpose of this article was to complete a concept analysis of translational research using a modified Walker and Avant approach. DESIGN/DATA COLLECTION: Using a rigorous and thorough review of the recent health care literature generated by a deep electronic search from 2004-2011, 85 appropriate documents were retrieved. Close reading of the articles by three coresearchers yielded an analysis of the emerging concept of translational research. Using the iterative process described by Walker and Avant, a tentative definition of the concept of translational research, along with antecedents and consequences were identified. Implications for health care professionals in education, practice, and research are offered. Further research is needed to determine the adequacy of the definition, to identify empirical referents, and to guide theory development. The study resulted in a theoretical definition of the concept of translational research, along with identification of antecedents and consequences and a description of an ideal or model case to illustrate the definition. Implications for practice and education include the importance of focusing on translational research approaches that may reduce the research-practice gap in health care, thereby improving patient care delivery. Research is needed to determine the usefulness of the definition in health care clinical practice.

Artist concept of SIM PlanetQuest Artist Concept

NASA Image and Video Library

2002-12-21

Artist's concept of the current mission configuration. SIM PlanetQuest (formerly called Space Interferometry Mission), currently under development, will determine the positions and distances of stars several hundred times more accurately than any previous program. This accuracy will allow SIM to determine the distances to stars throughout the galaxy and to probe nearby stars for Earth-sized planets. SIM will open a window to a new world of discoveries. http://photojournal.jpl.nasa.gov/catalog/PIA04248

What Can a Concept Do? Rethinking Education's Queer Assemblages

ERIC Educational Resources Information Center

Rasmussen, Mary Lou; Allen, Louisa

2014-01-01

In a discussion of Deleuze's theorization of concepts, Todd May asks "what can a concept do with that which cannot be identified?" Or to put it another way, May writes--"A concept is a way of addressing the difference that lies beneath the identities we experience." This is not to say that identities, concepts, and experiences…

Validation and structural analysis of the kinematics concept test

NASA Astrophysics Data System (ADS)

Lichtenberger, A.; Wagner, C.; Hofer, S. I.; Stern, E.; Vaterlaus, A.

2017-06-01

The kinematics concept test (KCT) is a multiple-choice test designed to evaluate students' conceptual understanding of kinematics at the high school level. The test comprises 49 multiple-choice items about velocity and acceleration, which are based on seven kinematic concepts and which make use of three different representations. In the first part of this article we describe the development and the validation process of the KCT. We applied the KCT to 338 Swiss high school students who attended traditional teaching in kinematics. We analyzed the response data to provide the psychometric properties of the test. In the second part we present the results of a structural analysis of the test. An exploratory factor analysis of 664 student answers finally uncovered the seven kinematics concepts as factors. However, the analysis revealed a hierarchical structure of concepts. At the higher level, mathematical concepts group together, and then split up into physics concepts at the lower level. Furthermore, students who seem to understand a concept in one representation have difficulties transferring the concept to similar problems in another representation. Both results have implications for teaching kinematics. First, teaching mathematical concepts beforehand might be beneficial for learning kinematics. Second, instructions have to be designed to teach students the change between different representations.

[An evolutionary analysis of the concept of self-care].

PubMed

Mailhot, Tanya; Cossette, Sylvie; Alderson, Marie

2013-03-01

The nursing community seems to agree on the general meaning of "self-care" as a concept allowing the individual to take care of his health. Yet the terms self-care and other "self-concepts" are often used interchangeably. Since this concept is central to nursing, it appeared crucial to lead an effort to clarify and to deepen the understanding of its development within the field of nursing. The objective of this evolutionary concept analysis was to identify the state of precision or clarity of the concept in the available nursing literature. The identification of attributes, antecedents and consequences has highlighted the characteristics as it has been used by various authors and ultimately provides a basis for further research. After this analysis, it is possible to propose that the concept of self-care refers to an activity initiated, consciously and following learning, which is appropriate to the situation and focused on a goal. Furthermore, this concept is widely used in contexts of long-term illnesses and much less so in contexts of acute diseases. In conclusion, work remains to be done to better differentiate the concept of self-care from other self-concepts when used in situations where a third party is involved in the realization of self-care.

Task-oriented display design - Concept and example

NASA Technical Reports Server (NTRS)

Abbott, Terence S.

1989-01-01

The general topic was in the area of display design alternatives for improved man-machine performance. The intent was to define and assess a display design concept oriented toward providing this task-oriented information. The major focus of this concept deals with the processing of data into parameters that are more relevant to the task of the human operator. Closely coupled to this concept of relevant information is the form or manner in which this information is actually presented. Conventional forms of presentation are normally a direct representation of the underlying data. By providing information in a form that is more easily assimilated and understood, a reduction in human error and cognitive workload may be obtained. A description of this proposed concept with a design example is provided. The application for the example was an engine display for a generic, twin-engine civil transport aircraft. The product of this concept was evaluated against a functionally similar, traditional display. The results of this evaluation showed that a task-oriented approach to design is a viable concept with regard to reducing user error and cognitive workload. The goal of this design process, providing task-oriented information to the user, both in content and form, appears to be a feasible mechanism for increasing the overall performance of a man-machine system.

Task-oriented display design: Concept and example

NASA Technical Reports Server (NTRS)

Abbott, Terence S.

1989-01-01

The general topic was in the area of display design alternatives for improved man-machine performance. The intent was to define and assess a display design concept oriented toward providing this task-oriented information. The major focus of this concept deals with the processing of data into parameters that are more relevant to the task of the human operator. Closely coupled to this concept of relevant information is the form or manner in which this information is actually presented. Conventional forms of presentation are normally a direct representation of the underlying data. By providing information in a form that is more easily assimilated and understood, a reduction in human error and cognitive workload may be obtained. A description of this proposed concept with a design example is provided. The application for the example was an engine display for a generic, twin-engine civil transport aircraft. The product of this concept was evaluated against a functionally similar, traditional display. The results of this evaluation showed that a task-oriented approach to design is a viable concept with regard to reducing user error and cognitive workload. The goal of this design process, providing task-oriented information to the user, both in content and form, appears to be a feasible mechanism for increasing the overall performance of a man-machine system.

Missing concepts in natural selection theory reconstructions.

PubMed

Ginnobili, Santiago

2016-09-01

The concept of fitness has generated a lot of discussion in philosophy of biology. There is, however, relative agreement about the need to distinguish at least two uses of the term: ecological fitness on the one hand, and population genetics fitness on the other. The goal of this paper is to give an explication of the concept of ecological fitness by providing a reconstruction of the theory of natural selection in which this concept was framed, that is, based on the way the theory was put to use in Darwin's main texts. I will contend that this reconstruction enables us to account for the current use of the theory of natural selection. The framework presupposed in the analysis will be that of metatheoretical structuralism. This framework will provide both a better understanding of the nature of ecological fitness and a more complete reconstruction of the theory. In particular, it will provide what I think is a better way of understanding how the concept of fitness is applied through heterogeneous cases. One of the major advantages of my way of thinking about natural selection theory is that it would not have the peculiar metatheoretical status that it has in other available views. I will argue that in order to achieve these goals it is necessary to make several concepts explicit, concepts that are frequently omitted in usual reconstructions.

Concept annotation in the CRAFT corpus.

PubMed

Bada, Michael; Eckert, Miriam; Evans, Donald; Garcia, Kristin; Shipley, Krista; Sitnikov, Dmitry; Baumgartner, William A; Cohen, K Bretonnel; Verspoor, Karin; Blake, Judith A; Hunter, Lawrence E

2012-07-09

Manually annotated corpora are critical for the training and evaluation of automated methods to identify concepts in biomedical text. This paper presents the concept annotations of the Colorado Richly Annotated Full-Text (CRAFT) Corpus, a collection of 97 full-length, open-access biomedical journal articles that have been annotated both semantically and syntactically to serve as a research resource for the biomedical natural-language-processing (NLP) community. CRAFT identifies all mentions of nearly all concepts from nine prominent biomedical ontologies and terminologies: the Cell Type Ontology, the Chemical Entities of Biological Interest ontology, the NCBI Taxonomy, the Protein Ontology, the Sequence Ontology, the entries of the Entrez Gene database, and the three subontologies of the Gene Ontology. The first public release includes the annotations for 67 of the 97 articles, reserving two sets of 15 articles for future text-mining competitions (after which these too will be released). Concept annotations were created based on a single set of guidelines, which has enabled us to achieve consistently high interannotator agreement. As the initial 67-article release contains more than 560,000 tokens (and the full set more than 790,000 tokens), our corpus is among the largest gold-standard annotated biomedical corpora. Unlike most others, the journal articles that comprise the corpus are drawn from diverse biomedical disciplines and are marked up in their entirety. Additionally, with a concept-annotation count of nearly 100,000 in the 67-article subset (and more than 140,000 in the full collection), the scale of conceptual markup is also among the largest of comparable corpora. The concept annotations of the CRAFT Corpus have the potential to significantly advance biomedical text mining by providing a high-quality gold standard for NLP systems. The corpus, annotation guidelines, and other associated resources are freely available at http://bionlp-corpora.sourceforge.net/CRAFT/index.shtml.

Subsumption principles underlying medical concept systems and their formal reconstruction.

PubMed Central

Bernauer, J.

1994-01-01

Conventional medical concept systems represent generic concept relations by hierarchical coding principles. Often, these coding principles constrain the concept system and reduce the potential for automatical derivation of subsumption. Formal reconstruction of medical concept systems is an approach that bases on the conceptual representation of meanings and that allows for the application of formal criteria for subsumption. Those criteria must reflect intuitive principles of subordination which are underlying conventional medical concept systems. Particularly these are: The subordinate concept results (1) from adding a specializing criterion to the superordinate concept, (2) from refining the primary category, or a criterion of the superordinate concept, by a concept that is less general, (3) from adding a partitive criterion to a criterion of the superordinate, (4) from refining a criterion by a concept that is less comprehensive, and finally (5) from coordinating the superordinate concept, or one of its criteria. This paper introduces a formalism called BERNWARD that aims at the formal reconstruction of medical concept systems according to these intuitive principles. The automatical derivation of hierarchical relations is primarily supported by explicit generic and explicit partititive hierarchies of concepts, secondly, by two formal criteria that base on the structure of concept descriptions and explicit hierarchical relations between their elements, namely: formal subsumption and part-sensitive subsumption. Formal subsumption takes only generic relations into account, part-sensitive subsumption additionally regards partive relations between criteria. This approach seems to be flexible enough to cope with unforeseeable effects of partitive criteria on subsumption. PMID:7949907

Biomechanical Concepts for the Physical Educator

ERIC Educational Resources Information Center

Strohmeyer, H. Scott

2004-01-01

The concepts and principles of biomechanics are familiar to the teacher of physical science as well as to the physical educator. The difference between the two instructors, however, is that one knows the language of science and the other provides an experientially rich environment to support acquisition of these concepts and principles. Use of…

Mapping Concepts for Learning and Assessment

ERIC Educational Resources Information Center

Daugherty, Jenny L.; Custer, Rodney L.; Dixon, Raymond A.

2012-01-01

Although it is helpful to identify a list of concepts to categorize and communicate the big ideas of engineering, it is important to determine how best to incorporate them into instruction. Concept mapping is a well-established learning and assessment tool that can be used by technology and engineering teachers. Maps can trace levels of…

Best Practices for Administering Concept Inventories

ERIC Educational Resources Information Center

Madsen, Adrian; McKagan, Sarah B.; Sayre, Eleanor C.

2017-01-01

There is a plethora of concept inventories available for faculty to use, but it is not always clear exactly why you would use these tests, or how you should administer them and interpret the results. These research-based tests about physics and astronomy concepts are valuable because they allow for standardized comparisons among institutions,…

Copernicus, medicine, and the heliocentric concept.

PubMed

Miller, J M

1983-09-01

With his back to the academically poorly oriented times of medieval Europe, Copernicus, the medical man, led the world into a concept of infinite space. His revolutionary concepts of astrophysics formed a buttress for the efforts of his successors. He looked to the stars, but he also had time to look at and help man.

Hydrogen-via-electricity concept. Critique report

NASA Technical Reports Server (NTRS)

Escher, W. J. D.

1981-01-01

The hydrogen-via-electricity (HvE) concept is the prospective use of hydrogen fuel produced electrolytically from the electric utility grid as a means of responding to conventional fuels shortages. The two sets of comments and critiques of this concept solicited from the Government/Government contractor group and from the electric utility companies are presented.

A Cognitive Approach to Threshold Concepts

ERIC Educational Resources Information Center

Walker, Guy

2013-01-01

This paper asks a fundamental question: what is happening inside the mind of the undergraduate during teaching and learning experiences, and how should curricula be designed to support it? A number of concepts lend themselves to providing an answer, principle among which is the relatively recent idea of Threshold Concepts. In this paper we attempt…

Facilitating Student Experimentation with Statistical Concepts.

ERIC Educational Resources Information Center

Smith, Patricia K.

2002-01-01

Offers a Web page with seven Java applets allowing students to experiment with key concepts in an introductory statistics course. Indicates the applets can be used in three ways: to place links to the applets, to create in-class demonstrations of statistical concepts, and to lead students through experiments and discover statistical relationships.…

Construction of the mathematical concept of pseudo thinking students

NASA Astrophysics Data System (ADS)

Anggraini, D.; Kusmayadi, T. A.; Pramudya, I.

2018-05-01

Thinking process is a process that begins with the acceptance of information, information processing and information calling in memory with structural changes that include concepts or knowledges. The concept or knowledge is individually constructed by each individual. While, students construct a mathematical concept, students may experience pseudo thinking. Pseudo thinking is a thinking process that results in an answer to a problem or construction to a concept “that is not true”. Pseudo thinking can be classified into two forms there are true pseudo and false pseudo. The construction of mathematical concepts in students of pseudo thinking should be immediately known because the error will have an impact on the next construction of mathematical concepts and to correct the errors it requires knowledge of the source of the error. Therefore, in this article will be discussed thinking process in constructing of mathematical concepts in students who experience pseudo thinking.

The conception of life in synthetic biology.

PubMed

Deplazes-Zemp, Anna

2012-12-01

The phrase 'synthetic biology' is used to describe a set of different scientific and technological disciplines, which share the objective to design and produce new life forms. This essay addresses the following questions: What conception of life stands behind this ambitious objective? In what relation does this conception of life stand to that of traditional biology and biotechnology? And, could such a conception of life raise ethical concerns? Three different observations that provide useful indications for the conception of life in synthetic biology will be discussed in detail: 1. Synthetic biologists focus on different features of living organisms in order to design new life forms, 2. Synthetic biologists want to contribute to the understanding of life, and 3. Synthetic biologists want to modify life through a rational design, which implies the notions of utilising, minimising/optimising, varying and overcoming life. These observations indicate a tight connection between science and technology, a focus on selected aspects of life, a production-oriented approach to life, and a design-oriented understanding of life. It will be argued that through this conception of life synthetic biologists present life in a different light. This conception of life will be illustrated by the metaphor of a toolbox. According to the notion of life as a toolbox, the different features of living organisms are perceived as various rationally designed instruments that can be used for the production of the living organism itself or secondary products made by the organism. According to certain ethical positions this conception of life might raise ethical concerns related to the status of the organism, the motives of the scientists and the role of technology in our society.

Experimental Concepts for Testing Seismic Hazard Models

NASA Astrophysics Data System (ADS)

Marzocchi, W.; Jordan, T. H.

2015-12-01

Seismic hazard analysis is the primary interface through which useful information about earthquake rupture and wave propagation is delivered to society. To account for the randomness (aleatory variability) and limited knowledge (epistemic uncertainty) of these natural processes, seismologists must formulate and test hazard models using the concepts of probability. In this presentation, we will address the scientific objections that have been raised over the years against probabilistic seismic hazard analysis (PSHA). Owing to the paucity of observations, we must rely on expert opinion to quantify the epistemic uncertainties of PSHA models (e.g., in the weighting of individual models from logic-tree ensembles of plausible models). The main theoretical issue is a frequentist critique: subjectivity is immeasurable; ergo, PSHA models cannot be objectively tested against data; ergo, they are fundamentally unscientific. We have argued (PNAS, 111, 11973-11978) that the Bayesian subjectivity required for casting epistemic uncertainties can be bridged with the frequentist objectivity needed for pure significance testing through "experimental concepts." An experimental concept specifies collections of data, observed and not yet observed, that are judged to be exchangeable (i.e., with a joint distribution independent of the data ordering) when conditioned on a set of explanatory variables. We illustrate, through concrete examples, experimental concepts useful in the testing of PSHA models for ontological errors in the presence of aleatory variability and epistemic uncertainty. In particular, we describe experimental concepts that lead to exchangeable binary sequences that are statistically independent but not identically distributed, showing how the Bayesian concept of exchangeability generalizes the frequentist concept of experimental repeatability. We also address the issue of testing PSHA models using spatially correlated data.

DSMS Operations Concept

NASA Technical Reports Server (NTRS)

Spradlin, G.

2000-01-01

The concept provides an overview of operational roles and responsibilities in a service system environment. It describes changed and new interfaces between the customers and the service system, and variations on these interfaces as a function of the level of support required by the customer.

Development and Evaluation of Sensor Concepts for Ageless Aerospace Vehicles: Report 4 - Phase 1 Implementation of the Concept Demonstrator

NASA Technical Reports Server (NTRS)

Abbott, David; Batten, Adam; Carpenter, David; Dunlop, John; Edwards, Graeme; Farmer, Tony; Gaffney, Bruce; Hedley, Mark; Hoschke, Nigel; Isaacs, Peter;

SELF-CONCEPT DIFFERENTIATION AND SELF-CONCEPT CLARITY ACROSS ADULTHOOD: ASSOCIATIONS WITH AGE AND PSYCHOLOGICAL WELL-BEING*

PubMed Central

DIEHL, MANFRED; HAY, ELIZABETH L.

2011-01-01

This study focused on the identification of conceptually meaningful groups of individuals based on their joint self-concept differentiation (SCD) and self-concept clarity (SCC) scores. Notably, we examined whether membership in different SCD-SCC groups differed by age and also was associated with differences in psychological well-being (PWB). Cluster analysis revealed five distinct SCD-SCC groups: a self-assured, unencumbered, fragmented-only, confused-only, and fragmented and confused group. Individuals in the self-assured group had the highest mean scores for positive PWB and the lowest mean scores for negative PWB, whereas individuals in the fragmented and confused group showed the inverse pattern. Findings showed that it was psychologically advantageous to belong to the self-assured group at all ages. As hypothesized, older adults were more likely than young adults to be in the self-assured cluster, whereas young adults were more likely to be in the fragmented and confused cluster. Thus, consistent with extant theorizing, age was positively associated with psychologically adaptive self-concept profiles. This study examined whether conceptually meaningful subgroups of individuals can be identified based on their joint scores on self-concept differentiation (SCD) and self-concept clarity (SCC). Specifically, we considered whether individuals within such subgroups differed systematically from one another on measures of positive and negative psychological well-being (PWB). Of interest to us was also whether there were age differences in the distribution of adults across the SCD-SCC groups and whether age moderated the association between PWB and SCD-SCC grouping. PMID:22010361

Abyssal seafloor waste isolation: the concept

NASA Astrophysics Data System (ADS)

Valent, Philip J.; Young, David K.; Sawyer, William B.; Wright, Thomas D.

1998-05-01

The Naval Research Laboratory (NRL), with industry and university participation, conducted an assessment of the concept of isolating certain wastes (i.e., sewage sludge, fly ash from municipal incinerators, and contaminated dredged material) on the oceans' abyssal seafloor. In this assessment the advantages, disadvantages, and economic and environmental viability of potential engineering methods for achieving abyssal waste isolation were identified and compared. This paper presents background to the Abyssal Plains Waste Isolation (APWI) Project, describes the characteristics of the waste streams and quantities potentially available for disposal via the abyssal isolation concept, summarizes regulations affecting use of the abyssal seafloor for disposal of wastes, and introduces the technical and scientific premises underlying implementation of the concept.

A concept analysis of voluntary active euthanasia.

PubMed

Guo, Fenglin

2006-01-01

Euthanasia has a wide range of classifications. Confusion exists in the application of specific concepts to various studies. To analyze the concept of voluntary active euthanasia using Walker and Avant's concept analysis method. A comprehensive literature review from various published literature and bibliographies. Clinical, ethical, and policy differences and similarities of euthanasia need to be debated openly, both within the medical profession and publicly. Awareness of the classifications about euthanasia may help nurses dealing with "end of life issues" properly.

Behavioral self-concept as predictor of teen drinking behaviors.

PubMed

Dudovitz, Rebecca N; Li, Ning; Chung, Paul J

2013-01-01

Adolescence is a critical developmental period for self-concept (role identity). Cross-sectional studies link self-concept's behavioral conduct domain (whether teens perceive themselves as delinquent) with adolescent substance use. If self-concept actually drives substance use, then it may be an important target for intervention. In this study, we used longitudinal data from 1 school year to examine whether behavioral self-concept predicts teen drinking behaviors or vice versa. A total of 291 students from a large, predominantly Latino public high school completed a confidential computerized survey in the fall and spring of their 9th grade year. Survey measures included the frequency of alcohol use, binge drinking and at-school alcohol use in the previous 30 days; and the Harter Self-Perception Profile for Adolescents behavioral conduct subscale. Multiple regressions were performed to test whether fall self-concept predicted the frequency and type of spring drinking behavior, and whether the frequency and type of fall drinking predicted spring self-concept. Fall behavioral self-concept predicted both the frequency and type of spring drinking. Students with low versus high fall self-concept had a predicted probability of 31% versus 20% for any drinking, 20% versus 8% for binge drinking and 14% versus 4% for at-school drinking in the spring. However, neither the frequency nor the type of fall drinking significantly predicted spring self-concept. Low behavioral self-concept may precede or perhaps even drive adolescent drinking. If these results are confirmed, then prevention efforts might be enhanced by targeting high-risk teens for interventions that help develop a healthy behavioral self-concept. Copyright © 2013 Academic Pediatric Association. Published by Elsevier Inc. All rights reserved.

The ability of children to generalize selected science concepts

NASA Astrophysics Data System (ADS)

Abdullah, Kemal Bin; Lowell, Walter E.

The study investigated the ability of primary and elementary school subjects to generalize two science concepts, Insect and Animal with and without instruction in the form of a mental set. It also examined the effects of age, IQ, and sex on the ability of the children to generalize these concepts. Two instruments measuring the ability to generalize the concepts Insect and Animal were developed. The results indicate that of the independent variables investigated, age and mental set significantly affected the ability to generalize the concepts Insect and Animal. It was found that the younger children's concepts were least developed and with age these concepts became more developed and more conceptual in nature. The ability to use information given in a mental set was found to be a function of age. The children in this study were more able to generalize the concept Insect than the concept Animal. The results suggest that children with age and instruction axe better able to master less general concepts than more geaeral ones. In addition, the study demonstrated that children are able to improve their learning of general concepts provided a great number and variety of instances and noninstances of the concept are used in the instruction.It was also found that the younger children were more perceptually bound than the older children. The younger children were unable to overcome the pull of perceptual attractiveness that the noninstances held for them despite instruction. The results suggest that teachers of such children should be aware of the conceptual level of the content being taught to such children to ensure appropriate and meaningful learning takes place.

Social autopoiesis: A concept in search of a theory

NASA Astrophysics Data System (ADS)

Broonen, Jean Paul

1998-07-01

This paper is a brief report on the issue of extension of the concept of autopoiesis to social systems. The arguments developed by four groups of authors to bring a response to that issue are summarized: Maturana and Varela, the fathers of the concept of autopoieis; Zeleny & Hufford who proposed a simple extension of the concept to social systems; Luhmann and Hejel with two different transformations of the concept; Morgan and his metaphorical perspective. The determinist vs teleological conception of (social) autopoiesis explicitly or implicitly sustained by several authors is emphasized.

Understanding pressure: didactical transpositions and pupils' conceptions

NASA Astrophysics Data System (ADS)

Kariotogloy, P.; Psillos, D.; Vallassiades, O.

1990-03-01

Using the concept of pressure two research trends-content analysis and pupils' conceptions of subject matter-are drawn together, in an attempt to understand the issues in teaching and learning specific domains of physics.

Kinetic concepts of thermally stimulated reactions in solids

NASA Astrophysics Data System (ADS)

Vyazovkin, Sergey

Historical analysis suggests that the basic kinetic concepts of reactions in solids were inherited from homogeneous kinetics. These concepts rest upon the assumption of a single-step reaction that disagrees with the multiple-step nature of solid-state processes. The inadequate concepts inspire such unjustified anticipations of kinetic analysis as evaluating constant activation energy and/or deriving a single-step reaction mechanism for the overall process. A more adequate concept is that of the effective activation energy, which may vary with temperature and extent of conversion. The adequacy of this concept is illustrated by literature data as well as by experimental data on the thermal dehydration of calcium oxalate monohydrate and thermal decomposition of calcium carbonate, ammonium nitrate and 1,3,5,7- tetranitro-1,3,5,7-tetrazocine.

Reading for Integration, Identifying Complementary Threshold Concepts: The ACRL "Framework" in Conversation with "Naming What We Know: Threshold Concepts of Writing"

ERIC Educational Resources Information Center

Johnson, Brittney; McCracken, I. Moriah

2016-01-01

In 2015, threshold concepts formed the foundation of two disciplinary documents: The "ACRL Framework for Information Literacy" (2015) and "Naming What We Know: Threshold Concepts of Writing Studies" (2015). While there is no consensus in the fields about the value of threshold concepts in teaching, reading the six Frames in the…

Diagnosing Students’ conception on atomic structure using open ended questions

NASA Astrophysics Data System (ADS)

Fitriza, Z.; Gazali, F.

2018-05-01

This study aims to diagnose students’ conception on atomic structure concepts using open ended questions. For this reason, a 7 items of assay test was administered to 135 senior high school students from different schools in West Sumatera. The data were collected using a an open ended test which is covering the concept used in the topic Atomic Structure. The open ended test of students’ conceptual was developed to identify the alternative conceptions that student might have regarding the concepts in Atomic Structure, to measure the level of students’ conceptions, and the way of students’ thinking concerning the concepts. The results showed that students find difficulties about some concepts of Atomic structure such as atom, atomic model, electron configuration, period and group.The result of this study illuminated the concepts to be underlined in developing teaching and learning approach concerning the topic of Atomic Structure.

Using Concept Maps in Political Science

ERIC Educational Resources Information Center

Chamberlain, Robert P.

2015-01-01

Concept mapping is a pedagogical technique that was developed in the 1970s and is being used in K-12 and postsecondary education. Although it has shown excellent results in other fields, it is still rare in political science. In this research note, I discuss the implementation and testing of concept mapping in my Advanced Introduction to…

"Key Concepts in ELT": Taking Stock

ERIC Educational Resources Information Center

Hall, Graham

2012-01-01

This article identifies patterns and trends within "Key Concepts in ELT", both since the inception of the feature in ELT Journal in 1993 and during the 17 years of the current editorship. After outlining the aims of the series, the article identifies key themes that have emerged over time, exploring the links between "Key Concepts" pieces and the…

What concept analysis in philosophy of science should be (and why competing philosophical analyses of gene concepts cannot be tested by polling scientists).

PubMed

Waters, C Kenneth

2004-01-01

What should philosophers of science accomplish when they analyze scientific concepts and interpret scientific knowledge? What is concept analysis if it is not a description of the way scientists actually think? I investigate these questions by using Hans Reichenbach's account of the descriptive, critical, and advisory tasks of philosophy of science to examine Karola Stotz and Paul Griffiths' idea that poll-based methodologies can test philosophical analyses of scientific concepts. Using Reichenbach's account as a point of departure, I argue that philosophy of science should identify and clarify epistemic virtues and describe scientific knowledge in relation to these virtues. The role of concept analysis is to articulate scientific concepts in ways that help reveal epistemic virtues and limitations of particular sciences. This means an analysis of the gene concept(s) should help clarify the explanatory power and limitations of gene-based explanations, and should help account for the investigative utility and biases of gene-centered sciences. I argue that a philosophical analysis of gene concept(s) that helps achieve these critical aims should not be rejected on the basis of poll-based studies even if such studies could show that professional biologists don't actually use gene terminology in precise ways corresponding to the philosophical analysis.

Unified Technical Concepts. Module 11: Vibrations and Waves.

ERIC Educational Resources Information Center

Technical Education Research Center, Waco, TX.

This concept module on vibrations and waves is one of thirteen modules that provide a flexible, laboratory-based physics instructional package designed to meet the specialized needs of students in two-year, postsecondary technical schools. Each of the thirteen concept modules discusses a single physics concept and how it is applied to each energy…

TQM: the essential concepts.

PubMed

Chambers, D W

1998-01-01

This is an introduction to the major concepts in total quality management, a loose collection of management approaches that focus on continuous improvement of processes, guided by routine data collection and adjustment of the processes. Customer focus and involvement of all members of an organization are also characteristics commonly found in TQM. The seventy-five-year history of the movement is sketched from its beginning in statistical work on quality assurance through the many improvements and redefinitions added by American and Japanese thinkers. Essential concepts covered include: control cycles, focus on the process rather than the defects, the GEAR model, importance of the customer, upstream quality, just-in-time, kaizen, and service quality.

Concept confusion and concept discernment in basic magnetism using analogical reasoning

NASA Astrophysics Data System (ADS)

Lemmer, Miriam; Nicodimus Morabe, Olebogeng

2017-07-01

Analogical reasoning is central to all learning, whether in daily life situations, in the classroom or while doing research. Although analogies can aid the learning process of making sense of phenomena and understanding new ideas in terms of known ideas, these should be used with care. This article reports a study of the use of analogies and the consequences of this use in the teaching of magnetism with special reference to misconceptions. We begin by identifying concept confusion and associated misconceptions in magnetism due to in-service physics teachers’ spontaneous analogical reasoning. Two analogy-based experiments that can be used to convert such concept confusion to discernment are then described. These experiments focus on understanding basic principles about sources and interactions of magnetic fields and implement the constructivist learning processes of discrimination and generalization. Lastly, recommendations towards reinforcement of conceptual understanding of basic magnetism in its relation to electricity are proposed.

An evolving-requirements technology assessment process for advanced propulsion concepts

NASA Astrophysics Data System (ADS)

McClure, Erin Kathleen

The following dissertation investigates the development of a methodology suitable for the evaluation of advanced propulsion concepts. At early stages of development, both the future performance of these concepts and their requirements are highly uncertain, making it difficult to forecast their future value. Developing advanced propulsion concepts requires a huge investment of resources. The methodology was developed to enhance the decision-makers understanding of the concepts, so that they could mitigate the risks associated with developing such concepts. A systematic methodology to identify potential advanced propulsion concepts and assess their robustness is necessary to reduce the risk of developing advanced propulsion concepts. Existing advanced design methodologies have evaluated the robustness of technologies or concepts to variations in requirements, but they are not suitable to evaluate a large number of dissimilar concepts. Variations in requirements have been shown to impact the development of advanced propulsion concepts, and any method designed to evaluate these concepts must incorporate the possible variations of the requirements into the assessment. In order to do so, a methodology was formulated to be capable of accounting for two aspects of the problem. First, it had to systemically identify a probabilistic distribution for the future requirements. Such a distribution would allow decision-makers to quantify the uncertainty introduced by variations in requirements. Second, the methodology must be able to assess the robustness of the propulsion concepts as a function of that distribution. This dissertation describes in depth these enabling elements and proceeds to synthesize them into a new method, the Evolving Requirements Technology Assessment (ERTA). As a proof of concept, the ERTA method was used to evaluate and compare advanced propulsion systems that will be capable of powering a hurricane tracking, High Altitude, Long Endurance (HALE) unmanned

Concept of operations for virtual weigh station

DOT National Transportation Integrated Search

2009-06-01

This document describes the concept of operations (ConOps) for the virtual weigh station (VWS). The ConOps describes the goals, functions, key concepts, architecture, operational scenarios, operational policies, and impacts of virtual weigh stations....

High efficiency solar photovoltaic power module concept

NASA Technical Reports Server (NTRS)

Bekey, I.

1978-01-01

The investigation of a preliminary concept for high efficiency solar power generation in space is presented. The concept was a synergistic combination of spectral splitting, tailored bandgap cells, high concentration ratios, and cool cell areas.

The Dominance Concept Inventory: A Tool for Assessing Undergraduate Student Alternative Conceptions about Dominance in Mendelian and Population Genetics

PubMed Central

Perez, Kathryn E.; Price, Rebecca M.

2014-01-01

Despite the impact of genetics on daily life, biology undergraduates understand some key genetics concepts poorly. One concept requiring attention is dominance, which many students understand as a fixed property of an allele or trait and regularly conflate with frequency in a population or selective advantage. We present the Dominance Concept Inventory (DCI), an instrument to gather data on selected alternative conceptions about dominance. During development of the 16-item test, we used expert surveys (n = 12), student interviews (n = 42), and field tests (n = 1763) from introductory and advanced biology undergraduates at public and private, majority- and minority-serving, 2- and 4-yr institutions in the United States. In the final field test across all subject populations (n = 709), item difficulty ranged from 0.08 to 0.84 (0.51 ± 0.049 SEM), while item discrimination ranged from 0.11 to 0.82 (0.50 ± 0.048 SEM). Internal reliability (Cronbach's alpha) was 0.77, while test–retest reliability values were 0.74 (product moment correlation) and 0.77 (intraclass correlation). The prevalence of alternative conceptions in the field tests shows that introductory and advanced students retain confusion about dominance after instruction. All measures support the DCI as a useful instrument for measuring undergraduate biology student understanding and alternative conceptions about dominance. PMID:26086665

Exploring the Effects of Employing Google Docs in Collaborative Concept Mapping on Achievement, Concept Representation, and Attitudes

ERIC Educational Resources Information Center

Lin, Yu-Tzu; Chang, Chia-Hu; Hou, Huei-Tse; Wu, Ke-Chou

2016-01-01

This study investigated the effectiveness of using Google Docs in collaborative concept mapping (CCM) by comparing it with a paper-and-pencil approach. A quasi-experimental study was conducted in a physics course. The control group drew concept maps using the paper-and-pencil method and face-to-face discussion, whereas the experimental group…

Teaching and Learning the Concept of Chemical Bonding

ERIC Educational Resources Information Center

Levy Nahum, Tami; Mamlok-Naaman, Rachel; Hofstein, Avi; Taber, Keith S.

2010-01-01

Chemical bonding is one of the key and basic concepts in chemistry. The learning of many of the concepts taught in chemistry, in both secondary schools as well as in the colleges, is dependent upon understanding fundamental ideas related to chemical bonding. Nevertheless, the concept is perceived by teachers, as well as by learners, as difficult,…

Economic Concepts for Nebraska's Junior High School Students.

ERIC Educational Resources Information Center

Myers, Dwain

This booklet identifies 14 basic economic concepts that have been selected for emphasis in junior high social studies classes in Nebraska. The booklet is accompanied by a series of related instructional units (see SO 011 416). In this booklet, the concepts are listed in a sequence from the simplest to the most complex, with concepts one through…

Effects of Event-Related Centrality on Concept Accessibility

ERIC Educational Resources Information Center

Mo, Lei; Chen, Hongmin; Li, Ying; Chen, Zhe; He, Xianyou

2007-01-01

In 3 experiments, we explored the accessibility of concepts of varying centrality as defined by the underlying events described in script-based passages. The accessibility of central concepts, as defined by event-relatedness, was compared to that of central concepts defined on the basis of the number of mentions in the text or based on their…

Developing Concepts with Children Who Are Deaf-Blind

ERIC Educational Resources Information Center

Miles, Barbara; McLetchie, Barbara

2008-01-01

In children, concepts develop in a spiral, with the child at the center. A positive self-concept begins within a responsive caregiving environment. Concepts build upon one another. The more ideas and memories that a child has about the way the world and relationships work, the easier it is to develop further ideas. Once a child realizes, for…

Youth physical activity self-efficacy: a concept analysis.

PubMed

Voskuil, Vicki R; Robbins, Lorraine B

2015-09-01

To report an analysis of the concept of youth physical activity self-efficacy. Physical activity self-efficacy is a concept that has been frequently examined as a key variable in research aimed at increasing physical activity among youth. Different conceptual definitions and empirical measures indicate the need for concept analysis to advance knowledge of the concept. Rodger's evolutionary method of concept analysis was used to collect and analyse the data. Social cognitive theory guided the analysis. The PubMed, Cumulative Index of Nursing and Allied Health Literature, PsychInfo, Educational Resources Information Center and Sociological Abstracts databases were searched for publications from 1990-2013. Search terms included self-efficacy, physical activity, youth, children, adolescent and teen. A total of 276 articles were identified. Fifty-five articles meeting inclusion criteria were included in the review. Data were analysed with particular focus on the attributes, antecedents and consequences of the concept. Defining attributes of physical activity self-efficacy were identified as personal cognition/perception, self-appraisal process, related action, power to choose physical activity, dynamic state and bi-dimensional nature. Antecedents and consequences were consistent with social cognitive theory. Youth physical activity self-efficacy is defined as a youth's belief in his/her capability to participate in physical activity and to choose physical activity despite existing barriers. This concept analysis provided an in-depth analysis and clarification of youth physical activity self-efficacy. Future research should be aimed at establishing consistency in conceptual definitions and empirical measurement to further develop the concept across disciplines. © 2015 John Wiley & Sons Ltd.

Free (Reactionless) Torque Generation—Or Free Propulsion Concept

NASA Astrophysics Data System (ADS)

Djordjev, Bojidar

2010-01-01

The basic principle in Newtonian Mechanics is based upon equal and opposite forces. Placing the vectors of velocity, acceleration, force and momentum of interacting objects along a single line satisfies the claim it is a linear or a 1-D concept. Classical Mechanics states that there are two main kinds of motion, linear and angular motion. Similarly placing the vectors of angular velocity, angular acceleration, torque and angular momentum along a line in the case of rotation in fact brings a plane 2-D interaction to the well known 1-D Newtonian concept. This adaptation transforms Classical Mechanics into a 1-D concept as well and presents a conformation that the linear concept is the only possible one. The Laws of Conservation of Momentum and Angular Momentum are results of the 1-D concept. But the world contains 3 geometrical spatial dimensions. Within the 3-D world there can exist 1-D, 2-D and 3-D kinds of interaction. The question is how to believe that the 3-D world can really be composed of a 1-D interaction or interactions made equal to the 1-D concept only? Examine a gyroscope—the only one mechanical device that is capable of performng 3-D behavior. The problem is that a gyroscope cannot perform three permanent and unidirectional torques that are fixed in space acting about perpendicular axes. This impossibility conforms to a 1-D concept. The idea is to find a solution that can be achieved for the 3-D concept.

Auditing the multiply-related concepts within the UMLS

PubMed Central

Mougin, Fleur; Grabar, Natalia

2014-01-01

Objective This work focuses on multiply-related Unified Medical Language System (UMLS) concepts, that is, concepts associated through multiple relations. The relations involved in such situations are audited to determine whether they are provided by source vocabularies or result from the integration of these vocabularies within the UMLS. Methods We study the compatibility of the multiple relations which associate the concepts under investigation and try to explain the reason why they co-occur. Towards this end, we analyze the relations both at the concept and term levels. In addition, we randomly select 288 concepts associated through contradictory relations and manually analyze them. Results At the UMLS scale, only 0.7% of combinations of relations are contradictory, while homogeneous combinations are observed in one-third of situations. At the scale of source vocabularies, one-third do not contain more than one relation between the concepts under investigation. Among the remaining source vocabularies, seven of them mainly present multiple non-homogeneous relations between terms. Analysis at the term level also shows that only in a quarter of cases are the source vocabularies responsible for the presence of multiply-related concepts in the UMLS. These results are available at: http://www.isped.u-bordeaux2.fr/ArticleJAMIA/results_multiply_related_concepts.aspx. Discussion Manual analysis was useful to explain the conceptualization difference in relations between terms across source vocabularies. The exploitation of source relations was helpful for understanding why some source vocabularies describe multiple relations between a given pair of terms. PMID:24464853

Factors relating to professional self-concept among nurse managers.

PubMed

Kantek, Filiz; Şimşek, Belkıs

2017-12-01

To investigate the self-concept in nurse managers in Turkey and the effects of certain variables on professional self-concept. Professional self-concept plays a significant role in improving certain professional behaviours. Nursing managers have the potential to influence other members of the profession with their attitudes and behaviours. The study was designed as a cross-sectional descriptive study. This study was conducted with 159 nurse managers in nine different hospitals. The study data were collected with a Personal Information Form and Professional Self-concept Nursing Inventory, and the data analysis was accomplished with descriptive statistics, Cronbach's alpha coefficients and Chi-squared Automatic Interaction Detector analyses. The professional self-concept score of nurse managers was 3·33 (SD = 0·308). Professional competence subdimension had the highest scores, while professional satisfaction subdimension had the lowest. The types of hospital were found to be influential on professional self-concept. The types of hospital were reported to influence the professional self-concept of nurses. Nursing managers are visionaries who can potentially influence nursing practices and decisions. Nursing leaders must monitor and administer strategies to improve their professional self-concept. © 2017 John Wiley & Sons Ltd.

Concept maps and language: a Turkish experience

NASA Astrophysics Data System (ADS)

Bagci Kilic, Gulsen

2003-11-01

Concept maps are being used by an increasing number of educators in Europe and the US. This paper has four goals. First, it discusses problems in developing Novak's style concept maps in Turkish caused by linguistic differences between Turkish and English. Second, it reports the findings of a research study conducted to adapt concept maps to Turkish. Third, it recommends three methods for the adaptation resulting from research findings. Finally, it discusses the implications of the adaptation for educators worldwide and for future research.

Mapping for Depth and Variety: Using a "Six W's" Scaffold to Facilitate Concept Mapping for Different History Concepts with Different Degrees of Freedom

ERIC Educational Resources Information Center

Tzeng, Jeng-Yi

2014-01-01

This study examines how 98 students in Taiwan taking a typical high-school history class composed concept maps related to both an everyday concept and an academic-oriented unique concept with various degrees of freedom in concept mapping. In order to reveal the multidimensionality of history concepts, this study provided participants a 6W scaffold…

Multiwall TPS: An emerging concept

NASA Technical Reports Server (NTRS)

Shideler, J. L.; Kelly, H. N.; Avery, D. E.; Blosser, M. L.; Adelman, H. M.

1981-01-01

The transformation of a titanium multiwall thermal protection system from a conceptual design to a working reality is described. The thermal and structural performance of the basic multiwall concept is analyzed. Radiant heat, wind tunnel, vibration, acoustic, and lightning strike tests are used to verify the performance of multiwall tiles under representative operating conditions. Flat, all titanium multiwall configurations limited to temperature below 810 K are discussed. Curved surface, higher temperature versions of the multiwall are considered. Preliminary mass estimates for advanced multiwall concepts are presented.

Unravelling the concept of integrated public health policy: Concept mapping with Dutch experts from science, policy, and practice.

PubMed

Tubbing, Luuk; Harting, Janneke; Stronks, Karien

2015-06-01

While expectations of integrated public health policy (IPHP) promoting public health are high, assessment is hampered by the concept's ambiguity. This paper aims to contribute to conceptual clarification of IPHP as first step in further measurement development. In an online concept mapping procedure, we invited 237 Dutch experts, 62 of whom generated statements on characteristics of IPHP. Next, 100 experts were invited, 24 of whom sorted the statements into piles according to their perceived similarity and rated the statements on relevance and measurability. Data was analyzed using concept mapping software. The concept map consisted of 97 statements, grouped into 11 clusters and five themes. Core themes were 'integration', concerning 'policy coherence' and 'organizing connections', and 'health', concerning 'positioning health' and 'addressing determinants'. Peripheral themes were 'generic aspects', 'capacities', and 'goals and setting', which respectively addressed general notions of integrated policy making, conditions for IPHP, and the variety in manifestations of IPHP. Measurability ratings were low compared to relevance. The concept map gives an overview of interrelated themes, distinguishes core from peripheral dimensions, and provides pointers for theories of the policy process. While low measurability ratings indicate measurement difficulties, the core themes provide pointers for systematic insight into IPHP through measurement. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

Semantic concept-enriched dependence model for medical information retrieval.

PubMed

Choi, Sungbin; Choi, Jinwook; Yoo, Sooyoung; Kim, Heechun; Lee, Youngho

2014-02-01

In medical information retrieval research, semantic resources have been mostly used by expanding the original query terms or estimating the concept importance weight. However, implicit term-dependency information contained in semantic concept terms has been overlooked or at least underused in most previous studies. In this study, we incorporate a semantic concept-based term-dependence feature into a formal retrieval model to improve its ranking performance. Standardized medical concept terms used by medical professionals were assumed to have implicit dependency within the same concept. We hypothesized that, by elaborately revising the ranking algorithms to favor documents that preserve those implicit dependencies, the ranking performance could be improved. The implicit dependence features are harvested from the original query using MetaMap. These semantic concept-based dependence features were incorporated into a semantic concept-enriched dependence model (SCDM). We designed four different variants of the model, with each variant having distinct characteristics in the feature formulation method. We performed leave-one-out cross validations on both a clinical document corpus (TREC Medical records track) and a medical literature corpus (OHSUMED), which are representative test collections in medical information retrieval research. Our semantic concept-enriched dependence model consistently outperformed other state-of-the-art retrieval methods. Analysis shows that the performance gain has occurred independently of the concept's explicit importance in the query. By capturing implicit knowledge with regard to the query term relationships and incorporating them into a ranking model, we could build a more robust and effective retrieval model, independent of the concept importance. Copyright © 2013 Elsevier Inc. All rights reserved.

Small Aircraft Transportation System Higher Volume Operations Concept

NASA Technical Reports Server (NTRS)

Abbott, Terence S.; Consiglio, Maria C.; Baxley, Brian T.; Williams, Daniel M.; Jones, Kenneth M.; Adams, Catherine A.

2006-01-01

This document defines the Small Aircraft Transportation System (SATS) Higher Volume Operations concept. The general philosophy underlying this concept is the establishment of a newly defined area of flight operations called a Self-Controlled Area (SCA). Within the SCA, pilots would take responsibility for separation assurance between their aircraft and other similarly equipped aircraft. This document also provides details for a number of off-nominal and emergency procedures which address situations that could be expected to occur in a future SCA. The details for this operational concept along with a description of candidate aircraft systems to support this concept are provided.

Examining the margins: a concept analysis of marginalization.

PubMed

Vasas, Elyssa B

2005-01-01

The aim of this analysis is to explore the concept of social marginalization for the purpose of concept development. Specifically, the article intends to clarify the relationship between health disparities and marginalization and generate knowledge about working with people who are socially marginalized. Concept development evolved from the critical analysis of relevant literature generated through searches of nursing and social science databases. Literature was organized thematically and themes related to marginalization as a social process were included and analyzed. The article explores the challenges of using marginalization as an independent concept and suggests areas for future inquiry and research.

Aeronautics Autonomy Testbed Capability (AATC) Team Developed Concepts

NASA Technical Reports Server (NTRS)

Smith, Phillip J.

2018-01-01

In 2015, the National Aeronautics and Space Administration (NASA) formed a multi-center, interdisciplinary team of engineers from three different aeronautics research centers who were tasked with improving NASA autonomy research capabilities. This group was subsequently named the Aeronautics Autonomy Testbed Capability (AATC) team. To aid in confronting the autonomy research directive, NASA contracted IDEO, a design firm, to provide consultants and guides to educate NASA engineers through the practice of design thinking, which is an unconventional method for aerospace design processes. The team then began learning about autonomy research challenges by conducting interviews with a diverse group of researchers and pilots, military personnel and civilians, experts and amateurs. Part of this design thinking process involved developing ideas for products or programs known as concepts that could enable real world fulfillment of the most important latent needs identified through analysis of the interviews. The concepts are intended to be sacrificial, intermediate steps in the design thinking process and are presented in this report to record the efforts of the AATC group. Descriptions are provided in present tense to allow for further ideation and imagining the concept as reality as was attempted during the teams discussions and interviews. This does not indicate that the concepts are actually in practice within NASA though there may be similar existing programs independent of AATC. These concepts were primarily created at two distinct stages during the design thinking process. After the initial interviews, there was a workshop for concept development and the resulting ideas are shown in this work as from the First Round. As part of succeeding interviews, the team members presented the First Round concepts to refine the understanding of existing research needs. This knowledge was then used to generate an additional set of concepts denoted as the Second Round. Some

Building Integrated Design Practice under the Concept of Sustainable Development

NASA Astrophysics Data System (ADS)

Liu, Xuexin

2018-03-01

With the continuous development of social economy, people are more demanding for architecture. Some advanced design concepts are gradually applied to the design of buildings. Under the concept of sustainable development, building integration design has also been widely used to promote the rapid development of architectural design. Integrated design concepts and sustainable development concepts play an important role to meet people’s requirements. This article will explore the concept of sustainable development under the concept of integrated architectural design and practice analysis, propose appropriate measures.

Auditing complex concepts in overlapping subsets of SNOMED.

PubMed

Wang, Yue; Wei, Duo; Xu, Junchuan; Elhanan, Gai; Perl, Yehoshua; Halper, Michael; Chen, Yan; Spackman, Kent A; Hripcsak, George

2008-11-06

Limited resources and the sheer volume of concepts make auditing a large terminology, such as SNOMED CT, a daunting task. It is essential to devise techniques that can aid an auditor by automatically identifying concepts that deserve attention. A methodology for this purpose based on a previously introduced abstraction network (called the p-area taxonomy) for a SNOMED CT hierarchy is presented. The methodology algorithmically gathers concepts appearing in certain overlapping subsets, defined exclusively with respect to the p-area taxonomy, for review. The results of applying the methodology to SNOMED's Specimen hierarchy are presented. These results are compared against a control sample composed of concepts residing in subsets without the overlaps. With the use of the double bootstrap, the concept group produced by our methodology is shown to yield a statistically significant higher proportion of error discoveries.

Auditing Complex Concepts in Overlapping Subsets of SNOMED

PubMed Central

Wang, Yue; Wei, Duo; Xu, Junchuan; Elhanan, Gai; Perl, Yehoshua; Halper, Michael; Chen, Yan; Spackman, Kent A.; Hripcsak, George

2008-01-01

Limited resources and the sheer volume of concepts make auditing a large terminology, such as SNOMED CT, a daunting task. It is essential to devise techniques that can aid an auditor by automatically identifying concepts that deserve attention. A methodology for this purpose based on a previously introduced abstraction network (called the p-area taxonomy) for a SNOMED CT hierarchy is presented. The methodology algorithmically gathers concepts appearing in certain overlapping subsets, defined exclusively with respect to the p-area taxonomy, for review. The results of applying the methodology to SNOMED’s Specimen hierarchy are presented. These results are compared against a control sample composed of concepts residing in subsets without the overlaps. With the use of the double bootstrap, the concept group produced by our methodology is shown to yield a statistically significant higher proportion of error discoveries. PMID:18998838

Pharmacology Goes Concept-Based: Course Design, Implementation, and Evaluation.

PubMed

Lanz, Amelia; Davis, Rebecca G

Although concept-based curricula are frequently discussed in the nursing education literature, little information exists to guide the development of a concept-based pharmacology course. Traditionally, nursing pharmacology courses are taught with an emphasis on drug class where a prototype drug serves as an exemplar. When transitioning pharmacology to a concept-based course, special considerations are in order. How can educators successfully integrate essential pharmacological content into a curriculum structured around nursing concepts? This article presents one approach to the design and implementation of a concept-based undergraduate pharmacology course. Planning methods, supportive teaching strategies, and course evaluation procedures are discussed.

Mindfulness in nursing: an evolutionary concept analysis.

PubMed

White, Lacie

2014-02-01

To report an analysis of the concept of mindfulness. Mindfulness is an emerging concept in health care that has significant implications for a variety of clinical populations. Nursing uses this concept in limited ways, and subsequently requires conceptual clarity to further identify its significance, use and applications in nursing. Mindfulness was explored using Rodgers evolutionary method of concept analysis. For this analysis, a sample of 59 English theoretical and research-based articles from the Cumulative Index to Nursing and Allied Health Literature database were obtained. The search was conducted between all-inclusive years of the database, 1981-2012. Data were analysed with particular focus on the attributes, antecedents, consequences, references and related terms that arose in relation to mindfulness in the nursing literature. The analysis found five intricately connected attributes: mindfulness is a transformative process where one develops an increasing ability to 'experience being present', with 'acceptance', 'attention' and 'awareness'. Antecedents, attributes and consequences appeared to inform and strengthen one another over time. Mindfulness is a significant concept for the discipline of nursing with practical applications for nurse well-being, the development and sustainability of therapeutic nursing qualities and holistic health promotion. It is imperative that nurse well-being and self-care become a more prominent focus in nursing research and education. Further development of the concept of mindfulness could support this focus, particularly through rigorous qualitative methodologies. © 2013 John Wiley & Sons Ltd.

Self-Concept Development and Educational Degree Attainment.

ERIC Educational Resources Information Center

Smart, John C.; Pascarella, Ernest T.

1986-01-01

A nine-year longitudinal study of the relationships of degree attainment, social and academic integration during college years, institutional characteristics, sex, and changes in student self-concept is reported. Implications for enhancing student self-concept are discussed. (MSE)

Spanish semantic feature production norms for 400 concrete concepts.

PubMed

Vivas, Jorge; Vivas, Leticia; Comesaña, Ana; Coni, Ana García; Vorano, Agostina

2017-06-01

Semantic feature production norms provide many quantitative measures of different feature and concept variables that are necessary to solve some debates surrounding the nature of the organization, both normal and pathological, of semantic memory. Despite the current existence of norms for different languages, there are still no published norms in Spanish. This article presents a new set of norms collected from 810 participants for 400 living and nonliving concepts among Spanish speakers. These norms consist of empirical collections of features that participants used to describe the concepts. Four files were elaborated: a concept-feature file, a concept-concept matrix, a feature-feature matrix, and a significantly correlated features file. We expect that these norms will be useful for researchers in the fields of experimental psychology, neuropsychology, and psycholinguistics.

Tail mean and related robust solution concepts

NASA Astrophysics Data System (ADS)

Ogryczak, Włodzimierz

2014-01-01

Robust optimisation might be viewed as a multicriteria optimisation problem where objectives correspond to the scenarios although their probabilities are unknown or imprecise. The simplest robust solution concept represents a conservative approach focused on the worst-case scenario results optimisation. A softer concept allows one to optimise the tail mean thus combining performances under multiple worst scenarios. We show that while considering robust models allowing the probabilities to vary only within given intervals, the tail mean represents the robust solution for only upper bounded probabilities. For any arbitrary intervals of probabilities the corresponding robust solution may be expressed by the optimisation of appropriately combined mean and tail mean criteria thus remaining easily implementable with auxiliary linear inequalities. Moreover, we use the tail mean concept to develope linear programming implementable robust solution concepts related to risk averse optimisation criteria.

Nurse dose: what's in a concept?

PubMed

Manojlovich, Milisa; Sidani, Souraya

2008-08-01

Many researchers have sought to address the relationship between nursing care and patient outcomes, with inconsistent and contradictory findings. We conducted a concept analysis and concept derivation, basing our work on theoretical and empirical literature, to derive nurse dose as a concept that pulls into a coherent whole disparate variables used in staffing studies. We defined nurse dose as the level of nursing reflected in the purity, amount, frequency, and duration of nursing care needed to produce favorable outcomes. All four parameters of nurse dose used together can facilitate our understanding of how nursing contributes to patient outcomes. Ongoing investigation will help to identify the parameters of nurse dose that have the greatest effect on outcomes. 2008 Wiley Periodicals, Inc

Understanding physiology by acting out concepts.

PubMed

Yucha, C B

1995-12-01

Typically, classes in anatomy and physiology are taught via lecture and visual aids. This seems to work well for students who are primarily auditory and visual learners but not for those who learn better through kinesthetic experiences. This is the first report describing the use of improvisation to act out physiological concepts within an anatomy and physiology course. Improvisational techniques encourage active participation and allow students to personally interact with and experience difficult concepts in the classroom. In this paper, sensory modality preferences for learning will be discussed briefly. Improvisational techniques will be described, and examples of improvisations useful to convey intricate physiological concepts will be provided. Last, student responses to the use of improvisational techniques in an anatomy and physiology course will be reported.

Interactive Concept of Operations Narrative Simulators

NASA Technical Reports Server (NTRS)

Denham, Andre R.

2017-01-01

This paper reports on an exploratory design and development project. Specifically this paper discusses the design and development of Interactive Concept of Operations Narrative Simulators (ICONS) as a means of enhancing the functionality of traditional Concept of Operations documents by leveraging the affordances provided by applications commonly used within the Interactive Fiction literary genre. Recommendations for an ICONS design and development methodology, along a detailed description of a practical proof-of-concept ICONS created using this approach are discussed. The report concludes with a discussion of how ICONS can be extended to the K-12 mathematics education domain and conclude with a discussion of how ICONS can be used to assist those involved with strategic planning at Marshall Space Flight Center.

Photoelectrochemistry: Introductory Concepts.

ERIC Educational Resources Information Center

Finklea, Harry O.

1983-01-01

Photoelectrochemistry is based on the semiconductor electrode. It is the semiconductor's ability to absorb light and convert it to electrical and/or chemical energy that forms the basis for the semiconductor liquid-junction solar cell. To understand how this occurs, solid-state physics concepts are discussed. (Author/JN)

Concept analysis of self-mutilation.

PubMed

Hicks, K Madalyn; Hinck, Susan M

2008-11-01

This paper is a report of a concept analysis to define and describe self-mutilation. Although there has been an increased interest in self-mutilation, as evidenced by recent publication of opinion literature, anecdotal reports and a few clinical studies, the concept has not been well developed to guide nursing research and interventions. Definitions and uses of self-mutilation were obtained in a comprehensive review of the health, psychology and education literature up to April 2007 to identify the defining attributes, antecedents and consequences. Walker and Avant's concept analysis strategy was the organizing framework. Self-mutilation is the intentional act of tissue destruction with the purpose of shifting overwhelming emotional pain to a more acceptable physical pain. Antecedents of self-mutilation are impaired coping skills and an unhealthy response to situations that cause unbearable emotional stress. Limited research suggests that risk factors for self-mutilation may be White race, adolescent age, female sex and history of sexual abuse as a child. Although self-mutilation allows the individual to gain control over emotions and provides a diversion from emotional pain, a release of endorphins after the physical damage that contributes to the feeling of relief supports an addictive maladaptive coping cycle of pain, relief, shame and self-hate. The theoretical definition of the concept of self-mutilation offers the basis for nurses to develop interventions to provide competent care when discovering injuries that are self-inflicted.