WorldWideScience

Sample records for subject matter expertise

  1. Does tutor subject-matter expertise influence student achievement in ...

    African Journals Online (AJOL)

    Objective. To establish whether or not tutor subject-matter expertise influences student achievement in content-based examinations in the problem-based learning (PBL) curriculum at the University of Transkei (UNITRA) Medical School. Design. A retrospective study of MB ChB III student achievement in end-of-block ...

  2. Quality of Feedback Following Performance Assessments: Does Assessor Expertise Matter?

    Science.gov (United States)

    Govaerts, Marjan J. B.; van de Wiel, Margje W. J.; van der Vleuten, Cees P. M.

    2013-01-01

    Purpose: This study aims to investigate quality of feedback as offered by supervisor-assessors with varying levels of assessor expertise following assessment of performance in residency training in a health care setting. It furthermore investigates if and how different levels of assessor expertise influence feedback characteristics.…

  3. Changes in Dictionary Subject Matter

    DEFF Research Database (Denmark)

    Nielsen, Sandro

    2003-01-01

    The general content of the three editions of the Duden dictionary has undergone few changes. The most substantial changes are the addition of syllabification and the deletion of antonomy in respect of lemmata in the second and third editions. The concept of dictionary subject matter is questioned...

  4. Applying Subject Matter Expertise (SME) Elicitation Techniques to TRAC Studies

    Science.gov (United States)

    2014-09-30

    in different ways. In the first case, CPR Analisys , we use the measures as way to derive effectiveness and uncertainty. In the second approach...means by which to overcome these capability gaps through the implementation of solutions, e.g., changes to doctrine, organizational structure , training...controlled through good elicitation practices, especially good question structuring , which we discuss in section C. (2) Modeling bias. This type of bias

  5. Does tutor subject-matter expertise influence student achievement in ...

    African Journals Online (AJOL)

    The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader). If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs.

  6. Foodservice. Subject Matter Update 1986-87.

    Science.gov (United States)

    Oregon State Dept. of Education, Salem. Div. of Vocational Education.

    This publication recognizes the constantly changing requirements of the food service industry and varying conditions for employment opportunities. It addresses the goal of relevance in education by enabling the educator to make timely adjustments in the subject matter of the food service curriculum. There are six sections in this publication, each…

  7. 45 CFR 703.3 - Scope of subject matter.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 3 2010-10-01 2010-10-01 false Scope of subject matter. 703.3 Section 703.3... AND FUNCTIONS OF STATE ADVISORY COMMITTEES § 703.3 Scope of subject matter. The scope of the subject matter to be dealt with by Advisory Committees shall be those subjects of inquiry or study with which the...

  8. Differential language expertise related to white matter architecture in regions subserving sensory-motor coupling, articulation, and interhemispheric transfer.

    Science.gov (United States)

    Elmer, Stefan; Hänggi, Jürgen; Meyer, Martin; Jäncke, Lutz

    2011-12-01

    The technique of diffusion tensor imaging (DTI) has been used to investigate alterations in white matter architecture following long-term training and expertise. Professional simultaneous interpreters (SI) provide an ideal model for the investigation of training-induced plasticity due to the high demands placed on sound to motor mapping mechanisms, which are vital for executing fast interpretations. In line with our hypothesis, we found clusters with decreased fractional anisotropy (FA) in the SI group in brain regions previously shown to support sensory-motor coupling mechanisms and speech articulation (cluster extent family-wise error corrected, P architecture indicated by lower FA values in the SI group in the most anterior and posterior parts of the corpus callosum. Our results suggest that language expertise is accompanied by plastic adaptations in regions strongly involved in motor aspects of speech and in interhemispheric information transfer. These results have implications for our understanding of language expertise in relation to white matter adaptations. Copyright © 2010 Wiley Periodicals, Inc.

  9. 49 CFR 1108.3 - Matters subject to arbitration.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 8 2010-10-01 2010-10-01 false Matters subject to arbitration. 1108.3 Section... BOARD, DEPARTMENT OF TRANSPORTATION RULES OF PRACTICE ARBITRATION OF CERTAIN DISPUTES SUBJECT TO THE STATUTORY JURISDICTION OF THE SURFACE TRANSPORTATION BOARD § 1108.3 Matters subject to arbitration. (a) Any...

  10. Building Virtually Free Subject Area Expertise through Social Media: An Exploratory Study

    Science.gov (United States)

    Kooy, Brian K.

    2016-01-01

    Central to the ongoing success of the liaison model is the need for liaison librarians to stay informed and up-to-date about recent developments in the subject areas of their assigned academic departments and programs. This article describes an exploratory study conducted to determine whether information obtained from the social media accounts of…

  11. The Role of Subjectivity in Teacher Expertise Development: Mindfully Embracing the "Black Sheep" of Educational Research

    Science.gov (United States)

    Inoue, Noriyuki

    2016-01-01

    In Western cultures, subjectivity has often been seen as the "black sheep" of educational research because of its heavy emphasis on objectivity. Consequently many research initiatives in education share the assumption that objective reasoning should play a central role. However, mentoring teachers' practice improvement research often…

  12. Conditioning audience patronage using subject matters in ...

    African Journals Online (AJOL)

    Films are subject-based and when producers set out to communicate their viewpoints, some do it flamboyantly while others take the subtle path. Unlike live theatre before it, the possibility of a virile spiral regarding the themes treated in movies can be as much repugnant as they can be fascinating. In this case, the audience ...

  13. Cortex Parcellation Associated Whole White Matter Parcellation in Individual Subjects

    Directory of Open Access Journals (Sweden)

    Patrick Schiffler

    2017-07-01

    Full Text Available The investigation of specific white matter areas is a growing field in neurological research and is typically achieved through the use of atlases. However, the definition of anatomically based regions remains challenging for the white matter and thus hinders region-specific analysis in individual subjects. In this article, we focus on creating a whole white matter parcellation method for individual subjects where these areas can be associated to cortex regions. This is done by combining cortex parcellation and fiber tracking data. By tracking fibers out of each cortex region and labeling the fibers according to their origin, we populate a candidate image. We then derive the white matter parcellation by classifying each white matter voxel according to the distribution of labels in the corresponding voxel from the candidate image. The parcellation of the white matter with the presented method is highly reliable and is not as dependent on registration as with white matter atlases. This method allows for the parcellation of the whole white matter into individual cortex region associated areas and, therefore, associates white matter alterations to cortex regions. In addition, we compare the results from the presented method to existing atlases. The areas generated by the presented method are not as sharply defined as the areas in most existing atlases; however, they are computed directly in the DWI space of the subject and, therefore, do not suffer from distortion caused by registration. The presented approach might be a promising tool for clinical and basic research to investigate modalities or system specific micro structural alterations of white matter areas in a quantitative manner.

  14. An Investigation of Expertise: Implications for Adult Educators.

    Science.gov (United States)

    Mandernach, Janice B.

    To examine the characteristics of expertise, a study at the University of Minnesota cardiac clinic compared differences in diagnostic ability and strategies between novices (fourth year medical students) and experts (specialists in pediatric cardiology). The investigator presented a model for expertise based on knowledge of subject matter content…

  15. Effect of rider experience and evaluator expertise on subjective grading of lameness in sound and unsound sports horses under saddle.

    Science.gov (United States)

    Marqués, Fernando J; Waldner, Cheryl; Reed, Stephen; Autet, Fernando; Corbeil, Louise; Campbell, John

    2014-04-01

    The primary objective of this study was to investigate whether rider experience influences the assessment and grading of lameness in horses based on under-saddle gait analysis. Thirteen adult sports horses in active training were included in the study. After a baseline lameness and neurologic examination by the principal investigators, horses were videotaped while being ridden by an experienced and a less experienced rider. A 3-minute video was made for each horse and rider and 26 videos were randomly ordered and compiled on a DVD. Veterinarians with different levels of experience in evaluating lameness and veterinary students viewed the DVD and assigned a lameness score to each horse/rider combination. In a model accounting for the expertise of the evaluator, there was no difference in overall lameness scores between experienced and less experienced riders. This result was consistent for both sound and unsound horses. The overall lameness scores reported by specialists and students, however, differed significantly. The lameness score reported by the study participants while the horse was ridden was significantly associated with the subjective baseline lameness assessment reported by the principal investigators for the same limb when the horse was not under saddle. Additional work is necessary to determine whether riders with even lower skill levels would further alter the balance and motion pattern of the horse and have more influence on subjective grading of lameness.

  16. 22 CFR 61.6 - Consultation with subject matter specialists.

    Science.gov (United States)

    2010-04-01

    ... FREE FLOW OF AUDIO-VISUAL MATERIALS § 61.6 Consultation with subject matter specialists. (a) The... assisting the Department in its determination of whether materials for which export certification or import... determine eligibility of material for certification or authentication based in part on the opinions obtained...

  17. students' perception of teacher's knowledge of subject matter and ...

    African Journals Online (AJOL)

    ALEXANDER E. TIMOTHY

    The study used the ex post facto design to find out the influence of student's perception of teacher's knowledge of the subject matter on the Senior Secondary Three (SS 3) students' performance in reading comprehension. Questionnaires reading comprehension test were used in eliciting data. The data were subsequently ...

  18. Teacher expertise

    DEFF Research Database (Denmark)

    Rasmussen, Jens

    and practice through development of better models for bridging the teaching at college and the internship teaching. The study was a longitudinal research and development project that followed teacher students during their first three years of a four year teacher education program after the teacher education...... reform of 2007. The study included four teacher training colleges at two university colleges and about 100 students. In the reform and in the study focus was on professional development. Each of the colleges implemented a number of actions in order to see whether they had potential for bridging the gap......Teacher Expertise: How to improve the relationship between Theory and Practice in Teacher Education Jens Rasmussen, Department of Education, Aarhus University In several studies and reports it has been nailed over and over that teachers’ matter. So this is not the question in this study...

  19. Teachers mathematical communication profile in explaining subject matter

    Science.gov (United States)

    Umami, Rohmatul; Budayasa, I. Ketut; Suwarsono, St.

    2017-12-01

    This study aimed to see a teachers mathematical communication profile in explaining a subject matter. It is a qualitative research. A high-school junior teacher (i.e., a teacher with 1- to 5-year experience) teaching mathematics at X-Social Class was selected as the subject of this study. The data was collected by observing the teachers mathematical communication in explaining a given material (i.e., the rule of sine) in class and an in-depth interview would be organized respectively. The result showed that the junior teacher explained the subject matter in systematic, complete, fluent, and centered manner. In this case, she began with reminding students on the previous material related to the current material to be learned, informing the current learning objectives, and finally delivering the subject matter. To support her explanation, the teacher also provided some related information, led the students attention into the given material by asking them particular related questions, and did not use any confusing terms. However, the study found that some of high-school teachers still used less appropriate language in explaining materials.

  20. Learning, knowledge building, and subject matter knowledge in school science

    Science.gov (United States)

    van Aalst, Jan Cornelis Wouterus

    Following a theoretical analysis of constructivist approaches to collaborative learning, a curriculum development model, the Learning to Knowledge Building Model, is proposed. Two empirical studies of student work with Computer Supported Intentional Learning Environment (CSILE) are then presented; these lend support to the model and explicate in detail the nature and extent of the knowledge developed by elementary school students. The first study is a content analysis of a database developed by a combined Grade 5/6 class as part of a unit on heat and matter, conducted after the children completed their work; the analysis assumes the point of view of a subject matter specialist in the field of the students' inquiry. The second study was conducted while the students' investigation was in progress, and takes the point of view of curriculum coverage; it involved a teacher who used a different model of database use, as well as different subject matter. The proposed LKB model is based on a distinction Bereiter and Scardamalia (1996a) have made between learning and knowledge building (i.e., progressive collaborative problem solving); its aim is to support the design and planning of curriculum units and classroom practices in which knowledge building is central. An important feature of the model is the attention given to ensuring that students learn to evaluate their knowledge and to ask the questions that can advance shared knowledge. Among the findings of the first study are: (a) students who wrote more notes that explicated their commonsense knowledge early in the unit, by means of mixed framework notes, tended to write more notes of high scientific merit later; (b) some of the students in this category tried out their ideas in diverse problem contexts; and (c) they tended to dominate the discussions they started. The second study provides additional insight into the role of the teacher, and the potential role of subject matter specialists, in knowledge building; it

  1. Single-subject grey matter graphs in Alzheimer's disease.

    Science.gov (United States)

    Tijms, Betty M; Möller, Christiane; Vrenken, Hugo; Wink, Alle Meije; de Haan, Willem; van der Flier, Wiesje M; Stam, Cornelis J; Scheltens, Philip; Barkhof, Frederik

    2013-01-01

    Coordinated patterns of cortical morphology have been described as structural graphs and previous research has demonstrated that properties of such graphs are altered in Alzheimer's disease (AD). However, it remains unknown how these alterations are related to cognitive deficits in individuals, as such graphs are restricted to group-level analysis. In the present study we investigated this question in single-subject grey matter networks. This new method extracts large-scale structural graphs where nodes represent small cortical regions that are connected by edges when they show statistical similarity. Using this method, unweighted and undirected networks were extracted from T1 weighted structural magnetic resonance imaging scans of 38 AD patients (19 female, average age 72±4 years) and 38 controls (19 females, average age 72±4 years). Group comparisons of standard graph properties were performed after correcting for grey matter volumetric measurements and were correlated to scores of general cognitive functioning. AD networks were characterised by a more random topology as indicated by a decreased small world coefficient (p = 3.53×10(-5)), decreased normalized clustering coefficient (p = 7.25×10(-6)) and decreased normalized path length (p = 1.91×10(-7)). Reduced normalized path length explained significantly (p = 0.004) more variance in measurements of general cognitive decline (32%) in comparison to volumetric measurements (9%). Altered path length of the parahippocampal gyrus, hippocampus, fusiform gyrus and precuneus showed the strongest relationship with cognitive decline. The present results suggest that single-subject grey matter graphs provide a concise quantification of cortical structure that has clinical value, which might be of particular importance for disease prognosis. These findings contribute to a better understanding of structural alterations and cognitive dysfunction in AD.

  2. Security Expertise

    DEFF Research Database (Denmark)

    and to reflect on the impact and responsibility of security analysis. In science and technology studies, the study of security politics adds a challenging new case to the agenda of research on expertise and policy. The contributors investigate cases such as academic security studies, security think tanks......, the collaboration between science, anthropology and the military, transnational terrorism, and the ethical consequences of security expertise. Together they challenge our understanding of how expertise works and what consequences it has for security politics and international relations. This book...... will be of particular interest to students of critical security studies, sociology, science and technology studies, and IR/security studies in general....

  3. Expertise seeking

    DEFF Research Database (Denmark)

    Hertzum, Morten

    2014-01-01

    used sources. Studies repeatedly show the influence of the social network – of friendships and personal dislikes – on the expertise-seeking network of organisations. In addition, people are no less prominent than documentary sources, in work contexts as well as daily-life contexts. The relative......Expertise seeking is the activity of selecting people as sources for consultation about an information need. This review of 72 expertise-seeking papers shows that across a range of tasks and contexts people, in particular work-group colleagues and other strong ties, are among the most frequently...

  4. Landscape History and Theory: from Subject Matter to Analytical Tool

    Directory of Open Access Journals (Sweden)

    Jan Birksted

    2003-10-01

    Full Text Available This essay explores how landscape history can engage methodologically with the adjacent disciplines of art history and visual/cultural studies. Central to the methodological problem is the mapping of the beholder - spatially, temporally and phenomenologically. In this mapping process, landscape history is transformed from subject matter to analytical tool. As a result, landscape history no longer simply imports and applies ideas from other disciplines but develops its own methodologies to engage and influence them. Landscape history, like art history, thereby takes on a creative cultural presence. Through that process, landscape architecture and garden design regains the cultural power now carried by the arts and museum studies, and has an effect on the innovative capabilities of contemporary landscape design.

  5. On indexes and subject matter of “global competitiveness”

    Directory of Open Access Journals (Sweden)

    A. V. Korotkov

    2017-01-01

    Full Text Available The aim of the research is to analyze the subject matter of a country’s competitiveness and to characterize statistical indexes of competitiveness known in the international practice from the perspective of a more elaborated theory of market competition. This aim follows from the identified problems. First, there are no generally accepted interpretation and joint understanding of competition and competitiveness at country level. Even the international organizations giving estimations of global competitiveness disagree on definitions of competitiveness. Secondly, there is no relation to the theory of market competition in the available source materials on competitiveness of the country without original methodology. Thirdly, well-known statistical indexes of global competitiveness do not have enough theoretical justification and differ in sets of factors. All this highlights the incompleteness of the methodology and methodological support of studying competitiveness at country level.Materials and methods. The research is based on the methodology of statistics, economic theory and marketing. The authors followed the basic principle of statistical methodology – requirement of continuous combination of qualitative and quantitative analysis, when the research begins and ends with qualitative analysis. A most important section of statistical methodology is widely used – construction of statistical indexes. In the course of the analysis, a method of statistical classifications is applied. A significant role in the present research is given to the method of generalizing and analogue method, realizing that related terms should mean similar and almost similar contents. Modeling of competition and competitiveness is widely used in the present research, which made it possible to develop a logical model of competition following from the competition theory.Results. Based on the definitions’ survey the analysis of the subject matter of global

  6. Cerebral white matter lesions and subjective cognitive dysfunction - The Rotterdam Scan Study

    NARCIS (Netherlands)

    de Groot, J.C.; de Leeuw, FE; Oudkerk, M; Hofman, A; Jolles, J; Breteler, MMB

    2001-01-01

    Objective: To determine the relationship between cerebral white matter lesions (WML) and subjective cognitive dysfunction. Background: Subjective cognitive dysfunction is present when a person perceives failures of cognitive function. When annoying enough, these failures will be expressed as

  7. 48 CFR 52.227-10 - Filing of Patent Applications-Classified Subject Matter.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 2 2010-10-01 2010-10-01 false Filing of Patent... Text of Provisions and Clauses 52.227-10 Filing of Patent Applications—Classified Subject Matter. As prescribed at 27.203-2, insert the following clause: Filing of Patent Applications—Classified Subject Matter...

  8. Beyond "Either-Or" Thinking: John Dewey and Confucius on Subject Matter and the Learner

    Science.gov (United States)

    Tan, Charlene

    2016-01-01

    This article compares the educational thought of John Dewey and Confucius on the nature of and relationship between subject matter and the learner. There is a common perception in the existing literature and discourse that Dewey advocates child- or learner-centred education whereas Confucius privileges subject matter via textual transmission.…

  9. Florida Master Teacher Program: Testing Teacher Subject Matter Knowledge.

    Science.gov (United States)

    Lavely, Carolyn; And Others

    1986-01-01

    The efforts of the Florida Institute for Instructional Research and Practice in designing, developing, and analyzing the subject area knowledge tests of the Florida Master Teacher Program are described. A total of 13 subject area examinations was developed in 1984-85, and 5 additional tests were developed the following year. For each subject area…

  10. GP teachers' subject matter knowledge in the context of a tutorial: the preparation and delivery compared.

    Science.gov (United States)

    Cantillon, Peter; de Grave, Willem

    2012-05-01

    Clinical teachers use several different types of knowledge in the act of teaching. These include content knowledge (subject matter), knowledge of how to teach (pedagogy) and knowledge of learners (context). Most attention in faculty development has been on how to teach rather than what is taught. The quality of a teacher's subject matter knowledge is likely to be a critical determinant of how well a subject is presented, communicated and learned. We therefore set out to examine teachers' subject matter knowledge in the context of a general practice tutorial on grade 1 hypertension. This study is part of a larger study that employed a mixed method approach (concept mapping, phenomenological interviews and video-stimulated recall) to examine differences between clinical educators in subject matter knowledge, pedagogical knowledge and knowledge of the learning environment in the context of general practice education. This paper presents the concept map data findings from the larger study as well as the parts of the phenomenological interviews that relate to subject matter knowledge and beliefs. We found that there were marked differences in the quality and elaborative structure of GP teachers' knowledge in the concept maps completed prior to the tutorials. These differences were also predictive of differences in the content presented to learners in tutorials. Teachers' beliefs about subject matter were also likely to have affected what they chose to teach about and how they presented it. Subject matter knowledge varies considerably between GP teachers in the context of a common and relatively simple tutorial. Differences in the quality of subject matter knowledge matter because they have a profound effect on what is learned and how it is learned. Faculty development for clinical educators needs to pay heed to the quality of subject matter knowledge in addition to its more common pedagogical focus.

  11. Generating a non-English subjectivity lexicon: relations that matter

    NARCIS (Netherlands)

    Jijkoun, V.; Hofmann, K.

    2009-01-01

    We describe a method for creating a non-English subjectivity lexicon based on an English lexicon, an online translation service and a general purpose thesaurus: Wordnet. We use a PageRank-like algorithm to bootstrap from the translation of the English lexicon and rank the words in the thesaurus by

  12. Preservice History Teachers' Perceptions of Subject Matter Competency

    Science.gov (United States)

    Yildirim, Tercan; Yazici, Fatih

    2017-01-01

    Teachers should be able to understand conceptual constructs, viewpoints, and principles related to their field and organize teaching process accordingly. This is valid also for history teachers. They are expected to comprehend the basic conceptions related to subject areas and reflect them on classroom practices. The association between subject…

  13. The interrelationship between subject matter and school gardens

    DEFF Research Database (Denmark)

    Christensen, Jacob Højgaard; Wistoft, Karen

    2018-01-01

    This article maps out existing research regarding the effectiveness of integrated teaching in school gardens, i.e. including the math, languages and science subjects with their related objectives and curricula in school garden teaching and vice versa. The article is based on a literature review...... a standard garden curriculum is essential to planning, carrying out and evaluating effective school garden teaching in math, languages and science. Experiential learning and hands-on activities are teaching methods that immediately come to mind because they make the subject content less abstract, activate...... that concludes that school gardens have a predominantly positive influence on students’ learning outcome. However, there are a few school garden programmes that have the same or even a less beneficial influence on students’ learning outcome than traditional teaching. Thus, school gardens do not have...

  14. Didactic Matters in Teaching Subjects of Economics at the College

    Directory of Open Access Journals (Sweden)

    Rita Strazdienė

    2011-04-01

    Full Text Available It has been stated in Lithuania‘s National School Concept that the primary goal of the education of Lithuania is to secure the best possible comprehensive development of physical, psychological and spiritual human powers, to create conditions for the unfolding of the personal individuality. The subject of my teaching is economic theory. We face economic questions every day and in all areas of life. Therefore, my purpose is to acquaint college students, who do not study economics, with economic basics, to develop economic thinking and literacy. Greatest attention is paid to describe economic concepts and to use them in practice. Economics can not be learned through observing, one must work, analyse, solve practical exercises, search for correct answers. The purpose of the article is to assess the students‘ approach to the relevance of the subjects of economics. It is sought to identify the possibilities of applying new methods for teaching economic subjects and of selecting a teaching method in accordance with the students‘ level of preparation. The assessment of the research carried out enables to conclude that teaching economics forms students‘ capacities of a wide range, stimulates their self-expression, prepares young people to work in market conditions. The following methods of the research have been employed: pedagogic observation, questionnaire (survey, analysis of scientific literature and generalization.

  15. Subjectivity and Objectivity: A Matter of Life and Death?

    Directory of Open Access Journals (Sweden)

    Gertrudis Van de Vijver

    2008-10-01

    Full Text Available In this paper, it is argued that the question ldquo;What is life?rdquo; time and again emergesmdash;and within the confines of an objectivistic/subjectivistic frame of thought has to emergemdash;as a symptom, a non-deciphered, cryptic message that insists on being interpreted. br /Our hypothesis is that the failure to measure up the living to the standards of objectification has been taken too frequently from an objectivistic angle, leading to a simple postponement of an objective treatment of the living, and meanwhile confining it to the domain of the subjective, the relative and the metaphorical. As a consequence, the truly important question of the co-constitutive relation between objectivity and subjectivity is thereby evaded. A critical, transcendental account can be relevant in this regard, not only because of the fact that objectivity and subjectivity are seen as co-constitutive, but also because it addresses the question of the embeddedness of objectivity and subjectivity from within the living dynamics.br /This hypothesis will be articulated on the basis of Erwin Schrouml;dingerrsquo;s famous little book on ldquo;What is life?rdquo;, in dialogue with Robert Rosenrsquo;s critical reading of it. It appears that Schrouml;dinger considered the living as a genuine challenge for classical objectification procedures. However, it is doubtful whether this brought him to a critical reading of objectivity or to the acknowledgment of a constitutive role of subjectivity in relation to objectivity. We argue that his viewpoint has the merit ofnbsp; expressing the difficulty of the living within the field of the physical sciences, but does not really transcend the objectivism/subjectivism opposition. At this point, Rosenrsquo;s relational account takes up the challenge more radically by acknowledging the need for a new epistemology and a new metaphysics in relation to living systems, and by attributing a place to classical objectivity from within this

  16. 37 CFR 1.110 - Inventorship and date of invention of the subject matter of individual claims.

    Science.gov (United States)

    2010-07-01

    ... invention of the subject matter of individual claims. 1.110 Section 1.110 Patents, Trademarks, and... invention of the subject matter of individual claims. When more than one inventor is named in an application... claim in the application or patent. Where appropriate, the invention dates of the subject matter of each...

  17. Experiential Learning of Electronics Subject Matter in Middle School Robotics Courses

    Science.gov (United States)

    Rihtaršic, David; Avsec, Stanislav; Kocijancic, Slavko

    2016-01-01

    The purpose of this paper is to investigate whether the experiential learning of electronics subject matter is effective in the middle school open learning of robotics. Electronics is often ignored in robotics courses. Since robotics courses are typically comprised of computer-related subjects, and mechanical and electrical engineering, these…

  18. One Health in food safety and security education: Subject matter outline for a curricular framework

    Directory of Open Access Journals (Sweden)

    John A. Angelos

    2017-06-01

    Full Text Available Educating students in the range of subjects encompassing food safety and security as approached from a One Health perspective requires consideration of a variety of different disciplines and the interrelationships among disciplines. The Western Institute for Food Safety and Security developed a subject matter outline to accompany a previously published One Health in food safety and security curricular framework. The subject matter covered in this outline encompasses a variety of topics and disciplines related to food safety and security including effects of food production on the environment. This subject matter outline should help guide curriculum development and education in One Health in food safety and security and provides useful information for educators, researchers, students, and public policy-makers facing the inherent challenges of maintaining and/or developing safe and secure food supplies without destroying Earth's natural resources.

  19. Trends in the journal of nematology, 1969-2009: authors, States, nematodes, and subject matter.

    Science.gov (United States)

    McSorley, R

    2011-06-01

    Issues of the Journal of Nematology from 1969-2009 were examined to determine trends in authorship and subject matter. Data were collected on authors, affiliations, locations, funding, nematodes, and nematological subject matter, and then compared among the 4 decades involved. Some of the more prominent changes noted included: a decrease (P Journal of Nematology in the 1990s and 2000s from a peak in the 1980s; an increase (P Journal of Nematology from 1969-2009. The greatest changes in subject matter were increases in papers on biological control and resistance in the 1990s and 2000s compared to the 1970s and 1980s. Additional trends and subjects are discussed, and data are provided comparing differences among the 4 decades for various aspects of nematology.

  20. One Health in food safety and security education: Subject matter outline for a curricular framework.

    Science.gov (United States)

    Angelos, John A; Arens, Amanda L; Johnson, Heather A; Cadriel, Jessica L; Osburn, Bennie I

    2017-06-01

    Educating students in the range of subjects encompassing food safety and security as approached from a One Health perspective requires consideration of a variety of different disciplines and the interrelationships among disciplines. The Western Institute for Food Safety and Security developed a subject matter outline to accompany a previously published One Health in food safety and security curricular framework. The subject matter covered in this outline encompasses a variety of topics and disciplines related to food safety and security including effects of food production on the environment. This subject matter outline should help guide curriculum development and education in One Health in food safety and security and provides useful information for educators, researchers, students, and public policy-makers facing the inherent challenges of maintaining and/or developing safe and secure food supplies without destroying Earth's natural resources.

  1. Fiberprint: A subject fingerprint based on sparse code pooling for white matter fiber analysis.

    Science.gov (United States)

    Kumar, Kuldeep; Desrosiers, Christian; Siddiqi, Kaleem; Colliot, Olivier; Toews, Matthew

    2017-09-01

    White matter characterization studies use the information provided by diffusion magnetic resonance imaging (dMRI) to draw cross-population inferences. However, the structure, function, and white matter geometry vary across individuals. Here, we propose a subject fingerprint, called Fiberprint, to quantify the individual uniqueness in white matter geometry using fiber trajectories. We learn a sparse coding representation for fiber trajectories by mapping them to a common space defined by a dictionary. A subject fingerprint is then generated by applying a pooling function for each bundle, thus providing a vector of bundle-wise features describing a particular subject's white matter geometry. These features encode unique properties of fiber trajectories, such as their density along prominent bundles. An analysis of data from 861 Human Connectome Project subjects reveals that a fingerprint based on approximately 3000 fiber trajectories can uniquely identify exemplars from the same individual. We also use fingerprints for twin/sibling identification, our observations consistent with the twin data studies of white matter integrity. Our results demonstrate that the proposed Fiberprint can effectively capture the variability in white matter fiber geometry across individuals, using a compact feature vector (dimension of 50), making this framework particularly attractive for handling large datasets. Copyright © 2017 Elsevier Inc. All rights reserved.

  2. Engaging Students with Subject Matter Experts and Science Content Through Classroom Connection Webinars

    Science.gov (United States)

    Graff, P. V.; Rampe, E.; Stefanov, W. L.; Vanderbloemen, L.; Higgins, M.

    2015-01-01

    Connecting students and teachers in classrooms with science, technology, engineering, and mathematics (STEM) experts provides an invaluable opportunity. Subject matter experts can share exciting science and science-related events as well as help to "translate" science being conducted by professionals. The Expedition Earth and Beyond (EEAB) Program, facilitated by the Astromaterials Research and Exploration Science (ARES) Division at the NASA Johnson Space Center, has been providing virtual access to subject matter experts through classroom connection webinars for the last five years. Each year, the reach of these events has grown considerably, especially over the last nine months. These virtual connections not only help engage students with role models, but are also designed to help teachers address concepts and content standards they are required to teach. These events also enable scientists and subject matter experts to help "translate" current science in an engaging and understandable manner while actively involving classrooms in the journey of science and exploration.

  3. Trends in the Journal of Nematology, 1969-2009: Authors, States, Nematodes, and Subject Matter

    OpenAIRE

    McSorley, R.

    2011-01-01

    Issues of the Journal of Nematology from 1969-2009 were examined to determine trends in authorship and subject matter. Data were collected on authors, affiliations, locations, funding, nematodes, and nematological subject matter, and then compared among the 4 decades involved. Some of the more prominent changes noted included: a decrease (P < 0.05) in the number of papers published in the Journal of Nematology in the 1990s and 2000s from a peak in the 1980s; an increase (P < 0.05) in number o...

  4. The Effects of CLIL Education on the Subject Matter (Mathematics) and the Target Language (English)

    Science.gov (United States)

    Ouazizi, Khalid

    2016-01-01

    This paper investigates the effects of Content and Language Integrated Learning, CLIL for short, on both the attainment of the subject matter, mathematics in our case, hence the content aspect of CLIL. The second axes of research focuses on the effect of CLIL on the learners' proficiency vis-à-vis the language of instruction, epitomized here by…

  5. On the Importance of Subject Matter in Mathematics Education: A Conversation with Erich Christian Wittmann

    Science.gov (United States)

    Akinwunmi, Kathrin; Höveler, Karina; Schnell, Susanne

    2014-01-01

    Erich Christian Wittmann is one of the primary founders of mathematics education research as an autonomous field of work and research in Germany. The interview presented here reflects on his role in promoting mathematics education as a design science. The interview addresses the following topics: (1) The importance of subject matter in…

  6. The Structure of Subject Matter Content and Its Instructional Design Implications

    Science.gov (United States)

    Reigeluth, Charles M.; And Others

    1978-01-01

    Four types of fundamental structures are briefly described and illustrated: the learning hierarchy, the procedural hierarchy, the taxonomy, and the model. Then a theoretical framework is presented for classifying types of subject matter content, and some implications of these content classifications are discussed. (VT)

  7. Pre-Service Geography Teachers' Confidence in Geographical Subject Matter Knowledge and Teaching Geographical Skills

    Science.gov (United States)

    Harte, Wendy; Reitano, Paul

    2015-01-01

    This research tracked the confidence of 16 undergraduate and postgraduate pre-service geography teachers as they completed a single semester, senior phase geography curriculum course. The study focused specifically on the pre-service teachers' confidence in geographical subject matter knowledge and their confidence in teaching geographical skills.…

  8. The Designer-by-Assignment in Practice: Instructional Design Thinking of Subject Matter Experts

    Science.gov (United States)

    Pesce, Sandra V.

    2012-01-01

    Designers-by-assignment, or subject matter experts (SMEs) who are pressed into training service, have become common in the workplace. A review of more than 24 studies on expert and novice instructional designers, however, revealed that little is known about how designers-by-assignment think about design and make design decisions in the field. A…

  9. The Dialectical Nature of Writing and Its Implications for Learning Subject Matter Courses.

    Science.gov (United States)

    Males, Terry

    1997-01-01

    Looks at writing as a dialectical affair--"dialectic" refers both to the dialogical nature of writing and the opportunity it opens up for the writer in coming to a new understanding of the subject matter. Uses H. Gadamer's philosophical hermeneutics as a starting point for developing writing as a dialectical process. (PA)

  10. Reclaiming the Subject Matter as a Guide to Mutual Understanding: Effectiveness and Ethics in Interpersonal Interaction.

    Science.gov (United States)

    Deetz, Stanley

    1990-01-01

    Presents H. G. Gadamer's ontology of understanding as a developmental foundation for interpersonal system ethics. Conceptualizes interaction in terms of demand that the subject matter places on openly formed mutual understanding. Shows unethical interactions as practices which prohibit this development. Provides examples of processes by which…

  11. What Do Subject Matter Experts Have to Say about Participating in Education and Outreach?

    Science.gov (United States)

    Manning, Colleen; NASA's Universe of Learning Team

    2018-01-01

    NASA’s Universe of Learning partners wish to actively engage with Subject Matter Experts (scientists and engineers) throughout the design, development, and delivery of products, programs, and professional development. In order to ensure these engagement efforts aligned with the needs of Subject Matter Experts, the external evaluators conducted an online survey. The subject pool included the scientists and engineers employed at the partner organizations as well as other scientists and engineers affiliated with NASA’s Astrophysics missions and research programs. This presentation will describe scientists’/engineers’ interest in various types of education/outreach, their availability to participate in education/outreach, factors that would encourage their participation in education/outreach, and the preparation and support they have for participation in education/outreach.

  12. John Dewey on theory of learning and inquiry: The scientific method and subject matter

    Science.gov (United States)

    Chen, Po-Nien

    This study examines the educational debate between Dewey and some of his critics on the merits of learning the scientific method. Four of Dewey's critics---Hutchins, Hirsch, Hirst, and Scheffler criticize Dewey for over-emphasizing the importance of the scientific method and under-emphasizing the importance of subject matter in education. This dissertation argues that these critics misunderstand Dewey's use of the scientific method and its importance in education. It argues that Dewey conceives of the scientific method in two different ways: first as an attitude and second as a tool. It also argues that, by failing to understand this critical distinction, these critics misunderstand the role of the scientific method in education. The dissertation concludes by showing that, educationally, Dewey's ideas of the scientific method have different meanings in different context. It analyzes the scientific method as empirical method, critical thinking, cooperative learning, and creative thinking, and shows the place of subject matter in each of them.

  13. White Matter Hyperintensity Associations with Cerebral Blood Flow in Elderly Subjects Stratified by Cerebrovascular Risk.

    Science.gov (United States)

    Bahrani, Ahmed A; Powell, David K; Yu, Guoquiang; Johnson, Eleanor S; Jicha, Gregory A; Smith, Charles D

    2017-04-01

    This study aims to add clarity to the relationship between deep and periventricular brain white matter hyperintensities (WMHs), cerebral blood flow (CBF), and cerebrovascular risk in older persons. Deep white matter hyperintensity (dWMH) and periventricular white matter hyperintensity (pWMH) and regional gray matter (GM) and white matter (WM) blood flow from arterial spin labeling were quantified from magnetic resonance imaging scans of 26 cognitively normal elderly subjects stratified by cerebrovascular disease (CVD) risk. Fluid-attenuated inversion recovery images were acquired using a high-resolution 3-dimensional (3-D) sequence that reduced partial volume effects seen with slice-based techniques. dWMHs but not pWMHs were increased in patients at high risk of CVD; pWMHs but not dWMHs were associated with decreased regional cortical (GM) blood flow. We also found that blood flow in WM is decreased in regions of both pWMH and dWMH, with a greater degree of decrease in pWMH areas. WMHs are usefully divided into dWMH and pWMH regions because they demonstrate differential effects. 3-D regional WMH volume is a potentially valuable marker for CVD based on associations with cortical CBF and WM CBF. Copyright © 2017 The Authors. Published by Elsevier Inc. All rights reserved.

  14. Problems Faced By Elementary School Second Grade English Subject Matter Teachers

    Directory of Open Access Journals (Sweden)

    Belgin Bal Incebacak

    2017-11-01

    Full Text Available The objective of thisstudy isto determine the problems experienced by subject matter teachers while instructing English lessons in the second grade of elementary school. What are the problemsfaced by English subject matter teachers when they instruct in 2nd grade lessons? In this research the descriptive modeling, which is one of the qualitative research methods, was employed. In accordance with this objective, we worked with 8 subject matter teachers from 5 different schoolsinAtakum and Ilkadim districtslocated in downtown Samsun, through easily accessible case sampling. The semi-structured “English Course Interview Form’’was applied to the teachers. In the study, descriptive survey model was employed, since it was aimed to reveal the current status of qualitative research methods.According to the results obtained from the research, the content was configured and presented under 5 themes. They were categorized as: 1. the problems experienced in classroom management, 2. the problems in physical and cognitive readiness, 3. the problems experienced in the learning and teacher process, 4. the problems seen in counseling, 5. the problems experienced in assessment and evaluation. In conclusion, the teachers stated that they had problems with managing the classroom, especially with the second grade students, whom are younger than others. It is observed that the change for teaching English at a younger age has been appropriate. Our teachersstated that they required in-service training so as to adapt to this aforementioned change.

  15. CosmoQuest: Supporting Subject Matter Experts in Broadening the Impacts of their Work beyond their Institutional Walls.

    Science.gov (United States)

    Noel-Storr, J.; Buxner, S.; Grier, J.; Gay, P.

    2016-12-01

    CosmoQuest is a virtual research facility, which, like its physical counterparts, provides tools for scientists to acquire reduced data products (thanks to our cadre of citizen scientists working to analyze images and produce results online), and also to participate in education and outreach activities either directly through CosmoQuest activities (such as CosmoAcademy and the Educators' Zone) or with the support of CosmoQuest. Here, we present our strategies to inspire, engage and support Subject Matter Experts (SMEs - Scientists, Engineers, Technologists and Mathematicians) in activities outside of their institutions, and beyond college classroom teaching. We provide support for SMEs who are interested in increasing the impacts of their science knowledge and expertise by interacting with people online, or in other venues outside of their normal work environment. This includes a broad spectrum of opportunities for those interested in hosting webinars; running short courses for the public; using Facebook, Twitter or other social media to communicate science; or other diverse activities such as supporting an open house, science fair, or star party. As noted by Katheryn Woods-Townsend and colleagues, "...face-to-face interactions with scientists allowed students to view scientists as approachable and normal people, and to begin to understand the range of scientific areas and careers that exist. Scientists viewed the scientist-student interactions as a vehicle for science communication" (2015). As CosmoQuest fosters these relationships, it We present a framework for SMEs which combine opportunities for continuing professional development (virtually and in person at conferences) with ongoing online support, creating a dynamic professional learning network. The goal of this is to deepen SME capacity-knowledge, attitudes and behaviors-both encouraging and empowering them to connect to broader audiences in new ways.

  16. OntoBrowser: a collaborative tool for curation of ontologies by subject matter experts.

    Science.gov (United States)

    Ravagli, Carlo; Pognan, Francois; Marc, Philippe

    2017-01-01

    The lack of controlled terminology and ontology usage leads to incomplete search results and poor interoperability between databases. One of the major underlying challenges of data integration is curating data to adhere to controlled terminologies and/or ontologies. Finding subject matter experts with the time and skills required to perform data curation is often problematic. In addition, existing tools are not designed for continuous data integration and collaborative curation. This results in time-consuming curation workflows that often become unsustainable. The primary objective of OntoBrowser is to provide an easy-to-use online collaborative solution for subject matter experts to map reported terms to preferred ontology (or code list) terms and facilitate ontology evolution. Additional features include web service access to data, visualization of ontologies in hierarchical/graph format and a peer review/approval workflow with alerting. The source code is freely available under the Apache v2.0 license. Source code and installation instructions are available at http://opensource.nibr.com This software is designed to run on a Java EE application server and store data in a relational database. philippe.marc@novartis.com. © The Author 2016. Published by Oxford University Press.

  17. Habitual sleep durations and subjective sleep quality predict white matter differences in the human brain

    Directory of Open Access Journals (Sweden)

    Sakh Khalsa

    2017-06-01

    Full Text Available Self-imposed short sleep durations are increasingly commonplace in society, and have considerable health and performance implications for individuals. Reduced sleep duration over multiple nights has similar behavioural effects to those observed following acute total sleep deprivation, suggesting that lack of sleep affects brain function cumulatively. A link between habitual sleep patterns and functional connectivity has previously been observed, and the effect of sleep duration on the brain's intrinsic functional architecture may provide a link between sleep status and cognition. However, it is currently not known whether differences in habitual sleep patterns across individuals are related to changes in the brain's white matter, which underlies structural connectivity. In the present study we use diffusion–weighted imaging and a group comparison application of tract based spatial statistics (TBSS to investigate changes to fractional anisotropy (FA and mean diffusivity (MD in relation to sleep duration and quality, hypothesising that white matter metrics would be positively associated with sleep duration and quality. Diffusion weighted imaging data was acquired from a final cohort of 33 (23–29 years, 10 female, mean 25.4 years participants. Sleep patterns were assessed for a 14 day period using wrist actigraphs and sleep diaries, and subjective sleep quality with the Pittsburgh Sleep Quality Index (PSQI. Median splits based on total sleep time and PSQI were used to create groups of shorter/longer and poorer/better sleepers, whose imaging data was compared using TBSS followed by post-hoc correlation analysis in regions identified as significantly different between the groups. There were significant positive correlations between sleep duration and FA in the left orbito-frontal region and the right superior corona radiata, and significant negative correlations between sleep duration and MD in right orbito-frontal white matter and the right

  18. Expertise and contra expertise independence and transparency; Expertises -contre expertises independance et transparence

    Energy Technology Data Exchange (ETDEWEB)

    Abarnou, G.; Ades, Y.; Ancelin, G.; Balle, St.; Bardy, J.Ch.; Beringer, F.; Blanc, M.; Bontoux, J.; Bovy, M.; Brunet, F.; Calafat, A.; Cartier, M.; Constant, H.; Delcourt, R.; Duvert, J.C.; Eichholtzer, F.; Fernandez, P.; Fernex, S.; Foechterle, A.; Gatesoupe, J.P.; Geneau, Ch.; Goerg, C.; Gourod, A.; Graschaire, G.; Hubscher Ibert, J.; Jaegert, M.; Lacoste, A.C.; Lacote, J.P.; Laroche, D.; Lazar, Ph.; Lelievre, D.; Levasseur, E.; Levent, L.; Louvat, D.; Manon, Ch.; Maugein, J.; Melguen, M.; Mouchet, Ch.; Mourat, J.P.; Naegelen, L.; Niquet, G.; Perves, J.P.; Potelet, P.; Regent, A.; Romann, J.M.; Rossa, N.; Saut, C.; Sazy, Ch.; Schmitt, P.; Sene, M.; Sene, Raymond; Sornein, J.F.; Sugier, A.; Tfibel, V.; Uhart, M.; Vidal, J.; Vieillard Baron, B.; Vigny, P.; Walgenwitz, G.; Wiest, A.; Wisselmann, R.; Zuberbuhler, A

    2006-07-01

    About sixty participants: members of C.L.I., academics, elected representatives, manufacturers, representatives of association, institutional, crossed their experiences. The debate was mainly centred on the role of the expert, the limits of its intervention and its independence. The presented titles are following: experiences of two C.L.I. in expertise; the work of communication of the nuclear experts; interest and limits of the expertise; presentation of the I.R.S.N. and the D.G.S.N.R.; expertise: problems and experiences; presentation of the works realised in work group; the considerations of the C.S.S.I.N.. (N.C.)

  19. The Effects of Verbal Rewards and Punishment on Subject-Matter Growth of Culturally Disadvantaged First Grade Children.

    Science.gov (United States)

    Honeycutt, Joan K.; Soar, Robert S.

    The purpose of this study was to extend a relationship between teacher verbal rewarding and punishing behavior and subject matter growth previously obtained with middle-class postprimary children, with a different population; namely, first-grade, lower-class children. The subjects were 366 children and 20 teachers from first-grade classes…

  20. Knot numbers used as labels for identifying subject matter of a khipu

    Directory of Open Access Journals (Sweden)

    Alberto Saez-Rodriguez

    2013-03-01

    Full Text Available This investigation presents a new way to look at the numerical khipu, a knotted-string recording device from Pachacamac (Peru, and the types of information it contains. In addition to celestial coordinates, khipu knots apparently pertain to an early form of double-entry accounting. This study hypothesizes that the khipu sample has the recording capacity needed to register double-entry-like accounts. After the identification of its subject matter, the khipu sample was studied in an attempt to ascertain whether the knot values could represent instructions from the Inca state administration to a local accounting center. The results indicate that the numerical information in the pairing quadrants (determined by the distribution of S- and Z-knots should be read from top to bottom along the full length of the string and can then provide certain complementary details regarding the projected corn stocks of the Inca stat

  1. Subject matter knowledge, classroom management, and instructional practices in middle school science classrooms

    Science.gov (United States)

    Lee, Okhee

    This study examined the interrelationships among three major components of classroom teaching: subject matter content knowledge, classroom management, and instructional practices. The study involved two middle school science classes of different achievement levels taught by the same female teacher. The teacher held an undergraduate degree with a major in social studies and a minor in mathematics and science from an elementary teacher education program. The findings indicated that the teacher's limited knowledge of science content and her strict classroom order resulted in heavy dependence on the textbook and students' individual activities (e.g., seatwork) and avoidance of whole-class activities (e.g., discussion) similarly in both classes. Implications for educational practices and further research are discussed.

  2. Threading together patient expertise.

    Science.gov (United States)

    Civan, Andrea; Pratt, Wanda

    2007-10-11

    Patients are valuable sources of expertise for other patients in similar situations, but little is understood about the nature of this expertise. To address this knowledge gap, we investigated informational support as a mechanism for peers to help one another learn to cope with the breast cancer experience. We analyzed the types of problems discussed and recommendations offered by correspondents in three online breast cancer communities. Informational support was prevalent and directed towards problems in which correspondents were planning for future events or coping with emergent situations. Peers shared a wealth of patient expertise, including action strategies, recommended knowledge, suggested approaches, and information resources for dealing with problems. Our results highlight how peers are helping one another to learn. These findings bring insight to new support we could provide to patients for developing and sharing patient expertise, such as problem-based information organization and functionality for collaborative problem solving.

  3. In Respect to the Cognitive Load Theory: Adjusting Instructional Guidance with Student Expertise.

    Science.gov (United States)

    Schilling, Jim

    2017-01-01

    The amount of guidance supplied by educators to students in allied health programs is a factor in student learning. According to the cognitive load theory of learning, without adequate instructional support, novice learners will be overwhelmed and unable to store information, while unnecessary guidance supplied to advanced students will cause extraneous cognitive load on the working memory system. Adjusting instructional guidance for students according to their level of expertise to minimize extraneous cognitive load and optimize working memory storage capacity will enhance learning effectiveness. Novice students presented with complex subject matter require significant guidance during the initial stages, using strategies such as worked examples. As students comprehend information, instructional guidance needs to gradually fade to avoid elevated extraneous cognitive load from the expertise reversal effect. An instructional strategy that utilizes a systemic (fixed) or adjustable (adaptive) tapering of guidance to students in allied health programs depending on their expertise will optimize learning capability.

  4. A Cognitive Perspective on Medical Expertise: Theory and Implications

    NARCIS (Netherlands)

    H.G. Schmidt (Henk); G.R. Norman (Geoffrey); H.P.A. Boshuizen (Henny)

    1990-01-01

    textabstractA new theory of the development of expertise in medicine is outlined. Contrary to existing views, this theory assumes that expertise is not so much a matter of superior reasoning skills or in-depth knowledge of pathophysiological states as it is based on cognitive structures that

  5. Essential and Embattled Expertise

    DEFF Research Database (Denmark)

    Leander, Anna

    2014-01-01

    with reference to the controversies surrounding the sarin gas attrack on Ghouta Damascus 21 August 2013. The article first argues that expertise continues to be essential in the sense that it is integral to contemporary policy-controversies. As the discussion around the sarin gas attack shows expertise is both...... constituted through controversies and at the same time constituting them. The article proceeds to suggest that precisely because this is the case, it is important that expertise also remains embattled. As shown with reference to the sarin gas attack controversies, it is only through contestation that the role...... to remain contested requires more than attention to hybrid agency and actants. It suggests that it also requires enrolling arguments from the "critical" approaches that Latour rejects. The article insists on the integration of three such "critical" arguments: the critique of markets for ideas...

  6. Digital gaming expertise

    DEFF Research Database (Denmark)

    Toft-Nielsen, Claus

    In a digitally saturated environment digital media users of all kinds, engaged in different areas of activity, are increasingly categorized in terms of their ability to appropriate and use digital media – they are regarded as non-users, experts, natives, or literates for instance. Within...... communication and game studies there are multiple understandings of how digital expertise is expressed and performed, and subsequently how these expressions and performances can be valued, understood and theorized within the research community. Among other things expertise with and within digital games has...... – rather, this is an paper that develops an understanding of how digital media expertise emerge and is negotiated among everyday gamers in domestic contexts. The paper is based on empirical data from qualitative focus group interviews (Morgan, 1997) and participant observations in-game and out...

  7. Science, expertise, and democracy.

    Science.gov (United States)

    Weinberg, Justin; Elliott, Kevin C

    2012-06-01

    The combination of government's significant involvement in science, science's significant effects on the public, and public ignorance (of both politics and science) raise important challenges for reconciling scientific expertise with democratic governance. Nevertheless, there have recently been a variety of encouraging efforts to make scientific activity more responsive to social values and to develop citizens' capacity to engage in more effective democratic governance of science. This essay introduces a special issue of the Kennedy Institute of Ethics Journal, "Science, Expertise, and Democracy," consisting of five papers that developed from the inaugural Three Rivers Philosophy conference held at the University of South Carolina in April 2011. The pieces range from a general analysis of the in-principle compatibility of scientific expertise and democracy to much more concrete studies of the intersection between scientific practices and democratic values in areas such as weight-of-evidence analysis, climate science, and studies of locally undesirable land uses.

  8. Grey-Matter Metabolism in Relation with White-Matter Lesions in Older Hypertensive Patients with Subjective Memory Complaints: A Pilot Voxel-Based Analysis Study.

    Science.gov (United States)

    Verger, Antoine; Hossu, Gabriela; Kearney-Schwartz, Anna; Bracard, Serge; Roch, Veronique; Van der Gucht, Axel; Fay, Renaud; Benetos, Athanase; Marie, Pierre-Yves; Joly, Laure

    2016-01-01

    This study aimed at assessing the changes in brain metabolism related to white-matter magnetic resonance (MR) hyperintensities of presumed vascular origin, with a voxel-based quantitative analysis of (18F)-fluorodesoxyglucose positron emission tomography (FDG-PET) imaging. Sixty older hypertensive patients with subjective memory complaints (75 ± 5 years, 34 women) were prospectively referred to FDG-PET and MRI brain imaging. The Statistical Parametric Mapping software was used to assess the correlation between brain distribution of FDG and white-matter hyperintensities assessed by the Fazekas score on MRI images. The Fazekas score was inversely related to FDG uptake, independently of age and gender, within 14 Brodmann areas located mainly in the frontal lobe but also in certain limbic, insular and temporal areas. This relationship was also found to be largely independent of the volume of grey matter expressed in percentage of cranial volume, an index of atrophy. White-matter MR hyperintensities of presumed vascular origin are cross-sectionally associated with a lower grey-matter metabolism, mainly but not only within frontal areas and independently of age, gender and grey-matter atrophy. © 2016 S. Karger AG, Basel.

  9. Powering Ideas through Expertise

    DEFF Research Database (Denmark)

    Seabrooke, Leonard; Wigan, Duncan

    2016-01-01

    policy. Corporate reporting for tax purposes is an area where the European Union, Organization for Economic Co-operation and Development, the United Nations, large global accountancy firms and non-governmental organizations have been active. The point of contention here is what form of financial...... reporting multinational corporations should provide to ensure they pay their fair share of tax. Ideas powered by expertise contain shared causal beliefs, as well as principled beliefs about value systems. We demonstrate that professionals can contest the established order when demonstrations of expertise...

  10. 'The body does matter': Women as embodied social subjects in Angela Carter's Nights at the Circus

    Directory of Open Access Journals (Sweden)

    Milosavljević Tatjana B.

    2017-01-01

    Full Text Available Postmodernism posed a crucial ontological challenge to reality, questioning what constitutes the real world, simultaneously interrogating the horizon of representation of this unstable reality in fiction. Feminism on the other hand equipped us with critical tools for interpreting the reality of being in the world in a gendered body, as well as with a conceptual apparatus for interpreting the manifold institutional and private oppressions of women's bodies that play out in women's daily lives and in the discourses that shape them, literary discourse being one of them. This paper argues that Angela Carter's 1984 novel Nights at the Circus, which is widely held as a postfeminist text due to its narrative commitment to transcending gender binaries, essentially uses the strategies of postmodern storytelling and characterization in order to explore women's embodied potentialities of agency i.e. their construction of subjectivity through body. We will argue that the hybrid magic realist narrative constructs Fevvers' body as a titillating postmodern performance, ontologically illusive and elusive, yet it grounds that same body in various socially effected predicaments and experiences that serve to show that even in the midst of a play of signifiers, in Patricia Waugh's words, 'the body does matter, at least to what has been the dominant perspective within British female fiction' (Waugh, 2006, p. 196. In other words, it may be argued that Carter's novel is invested in traditional second-wave feminist politics to the extent that it shows that a woman's body is an indispensable medium of being in the world with material consequences that bear on the formation of her subjectivity and possibility of agency, and through which she acts out her relationships to others and is acted upon.

  11. NASA's Universe of Learning: The Integral Role of Research Astronomers and Other Subject Matter Experts

    Science.gov (United States)

    Lee, Janice; Universe of Learning Team

    2018-01-01

    Astronomy seeks to understand the workings of the Universe on its largest scales, and to answer fundamental questions about the story of our origins. The science of astronomy thus naturally lends itself to informal education and public outreach activities, as it broadly captures the human imagination. There are at least three overall goals for investment of resources in Astronomy E/PO: to interest students in pursuing STEM education and careers; to develop Astronomy as context for teaching more basic physical and computer science in service of US National Education Goals; to help motivate continued public support of federally funded Astronomy research and technology development. Providing a full spectrum of opportunities for the public to learn about recent Astronomy discoveries is key to achieving these societal goals. Thus, the E/PO professional community must have an understanding of recent scientific/technological results, and engage with the researchers who are creating new knowledge to explicate that knowledge to the public. It stands to reason that researchers (or “subject matter experts, SMEs”) must be involved in and remain connected to the E/PO endeavor. In this talk, I will describe how research astronomers and other SMEs play an integral role in a full range of informal education programming developed by the NASA Universe of Learning collaboration, and opportunities to get involved.

  12. Cognitive Control and White Matter Callosal Microstructure in Methamphetamine Dependent Subjects: A DTI Study

    Science.gov (United States)

    Salo, Ruth; Nordahl, Thomas E; Buonocore, Michael H; Natsuaki, Yutaka; Waters, Christy; Moore, Charles D; Galloway, Gantt P; Leamon, Martin H

    2009-01-01

    Background Methamphetamine (MA) abuse causes damage to structures within the human cerebrum, with particular susceptibility to white matter (WM). Abnormalities have been reported in anterior regions with less evidence of changes in posterior regions. MA abusers have also shown deficits on attention tests that measure response conflict and cognitive control. Methods We examined cognitive control using a computerized measure of the Stroop selective attention task and indices of WM microstructure obtained from diffusion tensor imaging (DTI) in the callosal genu and splenium of 37 currently abstinent MA abusers and 17 non-substance abusing controls. Measurements of Fractional Anisotropy (FA), apparent diffusion coefficient (ADC) of callosal fibers and diffusion tensor eigenvalues were obtained in all subjects. Results The MA abusers exhibited greater Stroop reaction time interference (i.e., reduced cognitive control) [p=.04] compared to controls. After correcting for multiple comparisons, FA within the genu correlated significantly with measures of cognitive control in the MA abusers [p=.04, bonferroni corrected] but not in controls [p=.26]. Group differences in genu, but not splenium, FA were trend significant [p=.09]. Conclusions MA abuse appears to alter anterior callosal WM microstructure with less evidence of change within posterior callosal WM microstructure. DTI indices within the genu, but not splenium, correlated with measures of cognitive control in chronic MA abusers. PMID:18814867

  13. Using Highlighting to Train Attentional Expertise.

    Science.gov (United States)

    Roads, Brett; Mozer, Michael C; Busey, Thomas A

    2016-01-01

    Acquiring expertise in complex visual tasks is time consuming. To facilitate the efficient training of novices on where to look in these tasks, we propose an attentional highlighting paradigm. Highlighting involves dynamically modulating the saliency of a visual image to guide attention along the fixation path of a domain expert who had previously viewed the same image. In Experiment 1, we trained naive subjects via attentional highlighting on a fingerprint-matching task. Before and after training, we asked subjects to freely inspect images containing pairs of prints and determine whether the prints matched. Fixation sequences were automatically scored for the degree of expertise exhibited using a Bayesian discriminative model of novice and expert gaze behavior. Highlighted training causes gaze behavior to become more expert-like not only on the trained images but also on transfer images, indicating generalization of learning. In Experiment 2, to control for the possibility that the increase in expertise is due to mere exposure, we trained subjects via highlighting of fixation sequences from novices, not experts, and observed no transition toward expertise. In Experiment 3, to determine the specificity of the training effect, we trained subjects with expert fixation sequences from images other than the one being viewed, which preserves coarse-scale statistics of expert gaze but provides no information about fine-grain features. Observing at least a partial transition toward expertise, we obtain only weak evidence that the highlighting procedure facilitates the learning of critical local features. We discuss possible improvements to the highlighting procedure.

  14. The geometry of expertise

    Directory of Open Access Journals (Sweden)

    Maria Juliana eLeone

    2014-02-01

    Full Text Available Theories of expertise based on the acquisition of chunk and templates suggest a differential geometric organization of perception between experts and novices. It is implied that expert representation is less anchored by spatial (Euclidean proximity and may instead be dictated by the intrinsic relation in the structure and grammar of the specific domain of expertise. Here we set out to examine this hypothesis. We used the domain of chess which has been widely used as a tool to study human expertise. We reasoned that the movement of an opponent piece to a specific square constitutes an external cue and the reaction of the player to this perturbation should reveal his internal representation of proximity. We hypothesized that novice players will tend to respond by moving a piece in closer squares than experts. Similarly, but now in terms of object representations, we hypothesized weak players will more likely focus on a specific piece and hence produce sequence of actions repeating movements of the same piece. We capitalized on a large corpus of data obtained from internet chess servers. Results showed that, relative to experts, weaker players tend to 1 produce consecutive moves in proximal board locations, 2 move more often the same piece and 3 reduce the number of remaining pieces more rapidly, most likely to decrease cognitive load and mental effort. These three principles might reflect the effect of expertise on human actions in complex setups.

  15. The geometry of expertise.

    Science.gov (United States)

    Leone, María J; Fernandez Slezak, Diego; Cecchi, Guillermo A; Sigman, Mariano

    2014-01-01

    Theories of expertise based on the acquisition of chunk and templates suggest a differential geometric organization of perception between experts and novices. It is implied that expert representation is less anchored by spatial (Euclidean) proximity and may instead be dictated by the intrinsic relation in the structure and grammar of the specific domain of expertise. Here we set out to examine this hypothesis. We used the domain of chess which has been widely used as a tool to study human expertise. We reasoned that the movement of an opponent piece to a specific square constitutes an external cue and the reaction of the player to this "perturbation" should reveal his internal representation of proximity. We hypothesized that novice players will tend to respond by moving a piece in closer squares than experts. Similarly, but now in terms of object representations, we hypothesized weak players will more likely focus on a specific piece and hence produce sequence of actions repeating movements of the same piece. We capitalized on a large corpus of data obtained from internet chess servers. Results showed that, relative to experts, weaker players tend to (1) produce consecutive moves in proximal board locations, (2) move more often the same piece and (3) reduce the number of remaining pieces more rapidly, most likely to decrease cognitive load and mental effort. These three principles might reflect the effect of expertise on human actions in complex setups.

  16. Rituals of environmental expertise

    DEFF Research Database (Denmark)

    Petersen, Lars Kjerulf

    2008-01-01

    Use of experts in media reports about the environment is not confined to its information function. Voices of expertise also serve a ritual function in societal communication by enacting collective sentiments and common world views cast around consensus as well as conflict. This article presents t...

  17. Beyond Faces and Expertise

    Science.gov (United States)

    Zhao, Mintao; Bülthoff, Heinrich H.; Bülthoff, Isabelle

    2016-01-01

    Holistic processing—the tendency to perceive objects as indecomposable wholes—has long been viewed as a process specific to faces or objects of expertise. Although current theories differ in what causes holistic processing, they share a fundamental constraint for its generalization: Nonface objects cannot elicit facelike holistic processing in the absence of expertise. Contrary to this prevailing view, here we show that line patterns with salient Gestalt information (i.e., connectedness, closure, and continuity between parts) can be processed as holistically as faces without any training. Moreover, weakening the saliency of Gestalt information in these patterns reduced holistic processing of them, which indicates that Gestalt information plays a crucial role in holistic processing. Therefore, holistic processing can be achieved not only via a top-down route based on expertise, but also via a bottom-up route relying merely on object-based information. The finding that facelike holistic processing can extend beyond the domains of faces and objects of expertise poses a challenge to current dominant theories. PMID:26674129

  18. Programs and Expertise

    CERN Document Server

    2001-01-01

    Description of programs and expertise implemented by Radiation Protection Centre is presented. RPC implements study assessing the doses received by air crew members of Lithuanian Airlines. In 2001 RPC started measurements of indoor radon concentrations in the houses of regions with karst formations, commenced new program analyzing amounts of radionuclides in typical diet of hospital patients.

  19. Subjectivity

    Directory of Open Access Journals (Sweden)

    Jesús Vega Encabo

    2015-11-01

    Full Text Available In this paper, I claim that subjectivity is a way of being that is constituted through a set of practices in which the self is subject to the dangers of fictionalizing and plotting her life and self-image. I examine some ways of becoming subject through narratives and through theatrical performance before others. Through these practices, a real and active subjectivity is revealed, capable of self-knowledge and self-transformation. 

  20. What Subject Matter Knowledge Do Second-Level Teachers Need to Know to Teach Trigonometry? An Exploration and Case Study

    Science.gov (United States)

    Walsh, Richard; Fitzmaurice, Olivia; O'Donoghue, John

    2017-01-01

    This study reports on the level of trigonometry Subject Matter Knowledge (SMK) of third and final-year pre-service second-level mathematics teachers () at an Irish third-level institution. The aim of the study was to determine if this sample of prospective teachers has an appropriate level of SMK to teach second-level trigonometric concepts. The…

  1. A Methodology for Investigating the Interactions of Individual Differences and Subject Matter Characteristics with Instructional Methods. ; Report 67.

    Science.gov (United States)

    Reigeluth, Charles M.

    This paper presents a general model for conceptualizing and testing the interactions of individual differences and subject-matter characteristics with instructional methods. The model postulates certain ways of classifying the variables of interest in such investigations and of conceptualizing the cause-and-effect relationships among those classes…

  2. Which One Is Better? Jigsaw II versus Jigsaw IV on the Subject of the Building Blocks of Matter and Atom

    Science.gov (United States)

    Turkmen, Hakan; Buyukaltay, Didem

    2015-01-01

    In this study, the effect of using Jigsaw II and Jigsaw IV techniques on the subject of "Atoms-The Basic Unit of Matter" in science course of 6th grade on academic achievement was examined. Pre-test post-test control group research was used in the study. Study population is all secondary schools in Turgutlu district of Manisa province…

  3. "Frustrated" or "Surprised?" An Examination of the Perspectives of Spanish Teacher Candidates regarding the Praxis II Subject-Matter Tests

    Science.gov (United States)

    Moser, Kelly

    2012-01-01

    Researchers (Sandarg & Schomber, 2009; Wilkerson, Schomber, & Sandarg, 2004) have urged the profession to develop a new subject-matter licensure test to reflect the best practices in the foreign language classroom. In October 2010, the Praxis II: World Language Test joined the Praxis Series. Given that this standards-driven test differs…

  4. Reflective Pedagogy: The Integration of Methodology and Subject-Matter Content in a Graduate-Level Course

    Science.gov (United States)

    Jakeman, Rick C.; Henderson, Markesha M.; Howard, Lionel C.

    2017-01-01

    This article presents a critical reflection on how we, instructors of a graduate-level course in higher education administration, sought to integrate theoretical and subject-matter content and research methodology. Our reflection, guided by autoethnography and teacher reflection, challenged both our assumptions about curriculum design and our…

  5. The Knowledge Base of Subject Matter Experts in Teaching: A Case Study of a Professional Scientist as a Beginning Teacher

    Science.gov (United States)

    Diezmann, Carmel M.; Watters, James J.

    2015-01-01

    One method of addressing the shortage of science and mathematics teachers is to train scientists and other science-related professionals to become teachers. Advocates argue that as discipline experts these career changers can relate the subject matter knowledge to various contexts and applications in teaching. In this paper, through interviews and…

  6. Shared Knowledge among Graphic Designers, Instructional Designers and Subject Matter Experts in Designing Multimedia-Based Instructional Media

    Science.gov (United States)

    Razak, Rafiza Abdul

    2013-01-01

    The research identified and explored the shared knowledge among the instructional multimedia design and development experts comprising of subject matter expert, graphic designer and instructional designer. The knowledge shared by the team was categorized into three groups of multimedia design principles encompasses of basic principles, authoring…

  7. The Impact of Self-Perceived Subject Matter Knowledge on Pedagogical Decisions in EFL Grammar Teaching Practices

    Science.gov (United States)

    Sanchez, Hugo Santiago

    2014-01-01

    Recent developments in language teacher cognition research highlight the need to explore subject matter knowledge in relation to classroom practice. This study examines the impact of two foreign language teachers' knowledge about grammar upon their pedagogical decisions. The primary database consisted of classroom observations and post-lesson…

  8. The Effect of Applying Elements of Instructional Design on Teaching Material for the Subject of Classification of Matter

    Science.gov (United States)

    Ozdilek, Zehra; Ozkan, Muhlis

    2009-01-01

    The aim of this study was to examine the effect of instructional materials for the subject of classification of matter as solids, liquids and gases that were developed using a holistic instructional design model on student achievement. In the study a pre-test/post-test with control group experimental design was used. The study was conducted in the…

  9. Resting state cortical electroencephalographic rhythms are related to gray matter volume in subjects with mild cognitive impairment and Alzheimer's disease.

    Science.gov (United States)

    Babiloni, Claudio; Carducci, Filippo; Lizio, Roberta; Vecchio, Fabrizio; Baglieri, Annalisa; Bernardini, Silvia; Cavedo, Enrica; Bozzao, Alessandro; Buttinelli, Carla; Esposito, Fabrizio; Giubilei, Franco; Guizzaro, Antonio; Marino, Silvia; Montella, Patrizia; Quattrocchi, Carlo C; Redolfi, Alberto; Soricelli, Andrea; Tedeschi, Gioacchino; Ferri, Raffaele; Rossi-Fedele, Giancarlo; Ursini, Francesca; Scrascia, Federica; Vernieri, Fabrizio; Pedersen, Torleif Jan; Hardemark, Hans-Goran; Rossini, Paolo M; Frisoni, Giovanni B

    2013-06-01

    Cortical gray matter volume and resting state cortical electroencephalographic rhythms are typically abnormal in subjects with amnesic mild cognitive impairment (MCI) and Alzheimer's disease (AD). Here we tested the hypothesis that in amnesic MCI and AD subjects, abnormalities of EEG rhythms are a functional reflection of cortical atrophy across the disease. Eyes-closed resting state EEG data were recorded in 57 healthy elderly (Nold), 102 amnesic MCI, and 108 AD patients. Cortical gray matter volume was indexed by magnetic resonance imaging recorded in the MCI and AD subjects according to Alzheimer's disease neuroimaging initiative project (http://www.adni-info.org/). EEG rhythms of interest were delta (2-4 Hz), theta (4-8 Hz), alpha1 (8-10.5 Hz), alpha2 (10.5-13 Hz), beta1 (13-20 Hz), beta2 (20-30 Hz), and gamma (30-40 Hz). These rhythms were indexed by LORETA. Compared with the Nold, the MCI showed a decrease in amplitude of alpha 1 sources. With respect to the Nold and MCI, the AD showed an amplitude increase of delta sources, along with a strong amplitude reduction of alpha 1 sources. In the MCI and AD subjects as a whole group, the lower the cortical gray matter volume, the higher the delta sources, the lower the alpha 1 sources. The better the score to cognitive tests the higher the gray matter volume, the lower the pathological delta sources, and the higher the alpha sources. These results suggest that in amnesic MCI and AD subjects, abnormalities of resting state cortical EEG rhythms are not epiphenomena but are strictly related to neurodegeneration (atrophy of cortical gray matter) and cognition. Copyright © 2011 Wiley Periodicals, Inc.

  10. Rhetorical meta-language to promote the development of students' writing skills and subject matter understanding

    Science.gov (United States)

    Pelger, Susanne; Sigrell, Anders

    2016-01-01

    students' understanding of their subject matter.

  11. Girl Scouts and Subject Matter Experts: What’s the Connection?

    Science.gov (United States)

    Harman, Pamela; Girls Scouts of Northern California, Girl Scouts USA, Astronomical Society of the Pacifica, Univeristy of Arizona, and ARIES Scientific.

    2018-01-01

    Reaching for the Stars: NASA Science for Girl Scouts (Girl Scout Stars) fosters interaction between Girl Scouts and NASA Subject Matter Experts (SMEs), disseminates NASA STEM education-related resources, and engages Girl Scouts in NASA science and programs through space science badges and summer camps.A space science badge is in development for each of the six levels of Girl Scouts: Daisies, Grades K – 1; Brownies, Grades 2 -3; Juniors, Grades 4 -5; Cadettes, Grades 6 -8; Seniors, Grades 9 -10; and Ambassadors, Grades 11 -12. Indirectly, SMEs will reach tens of thousands of girls through the badges. SETI Institute SMEs Institute and SME Co-Is located at ARIES Scientific, Astronomical Society of the Pacific, University of Arizona, and Girl Scouts of Northern California developed and modified astronomy activities for the Girl Scouts USA badge writers to finesse into the Girl Scout formats. Revisions are reviewed by SMEs for accuracy. Each badge includes a step option that encourages girls to connect with SMEs, and recommendations for volunteers.A total of 127 girls from 31 states and the District of Columbia attendedTotal Eclipse Destination Camps at three locations. SMEs led activities and tours, inspiring girls to consider STEM careers. University of Arizona (U of A) SMEs lead Astronomy Camp for Volunteers, enabling volunteers to lead and inspire Girl Scouts in their respective Girl Scout Councils. A Destination Camp for Girl Scouts was also held at U of A. Girls experience authentic astronomy, learning how to collect and analyze data.Eleven teams comprised of two Girl Scouts, a volunteer or Council Staff, and an amateur astronomer attended Astronomy Club Camp, held at NASA GSFC. SMEs delivered science content. The girls will lead the formation of astronomy clubs in their councils, and will train their successors. SMEs will present and coach the clubs during monthly webinars.This presentation will highlight success and discuss lessons learned that are applicable

  12. Being in a romantic relationship is associated with reduced gray matter density in striatum and increased subjective happiness

    Directory of Open Access Journals (Sweden)

    Hiroaki Kawamichi

    2016-11-01

    Full Text Available Romantic relationship, a widespread feature of human society, is one of the most influential factors in daily life. Although stimuli related to romantic love or being in a romantic relationship commonly result in enhancement of activation or functional connectivity of the reward system, including the striatum, the structure underlying romantic relationship-related regions remain unclear. Because individual experiences can alter gray matter within the adult human brain, we hypothesized that romantic relationship is associated with structural differences in the striatum related to the positive subjective experience of being in a romantic relationship. Because intimate romantic relationships contribute to perceived subjective happiness, this subjective enhancement of happiness might be accompanied by the experience of positive events related to being in a romantic relationship. To test this hypothesis and elucidate the structure involved, we compared subjective happiness, an indirect measure of the existence of positive experiences caused by being in a romantic relationship, of participants with or without romantic partners (N = 68. Furthermore, we also conducted a voxel-based morphometry (VBM study of the effects of being in a romantic relationship (N = 113. Being in a romantic relationship was associated with greater subjective happiness and reduced gray matter density within the right dorsal striatum. These results suggest that being in a romantic relationship enhances perceived subjective happiness via positive experiences. Furthermore, the observed reduction in gray matter density in the right dorsal striatum may reflect an increase in saliency of social reward within a romantic relationship. Thus, being in a romantic relationship is associated with positive experiences and a reduction of gray matter density in the right dorsal striatum, representing a modulation of social reward.

  13. Being in a Romantic Relationship Is Associated with Reduced Gray Matter Density in Striatum and Increased Subjective Happiness.

    Science.gov (United States)

    Kawamichi, Hiroaki; Sugawara, Sho K; Hamano, Yuki H; Makita, Kai; Matsunaga, Masahiro; Tanabe, Hiroki C; Ogino, Yuichi; Saito, Shigeru; Sadato, Norihiro

    2016-01-01

    Romantic relationship, a widespread feature of human society, is one of the most influential factors in daily life. Although stimuli related to romantic love or being in a romantic relationship commonly result in enhancement of activation or functional connectivity of the reward system, including the striatum, the structure underlying romantic relationship-related regions remain unclear. Because individual experiences can alter gray matter within the adult human brain, we hypothesized that romantic relationship is associated with structural differences in the striatum related to the positive subjective experience of being in a romantic relationship. Because intimate romantic relationships contribute to perceived subjective happiness, this subjective enhancement of happiness might be accompanied by the experience of positive events related to being in a romantic relationship. To test this hypothesis and elucidate the structure involved, we compared subjective happiness, an indirect measure of the existence of positive experiences caused by being in a romantic relationship, of participants with or without romantic partners (N = 68). Furthermore, we also conducted a voxel-based morphometry study of the effects of being in a romantic relationship (N = 113). Being in a romantic relationship was associated with greater subjective happiness and reduced gray matter density within the right dorsal striatum. These results suggest that being in a romantic relationship enhances perceived subjective happiness via positive experiences. Furthermore, the observed reduction in gray matter density in the right dorsal striatum may reflect an increase in saliency of social reward within a romantic relationship. Thus, being in a romantic relationship is associated with positive experiences and a reduction of gray matter density in the right dorsal striatum, representing a modulation of social reward.

  14. Development of legal expertise

    OpenAIRE

    Glöckner, Andreas; Towfigh, Emanuel; Traxler, Christian

    2013-01-01

    In a comprehensive empirical investigation (N = 71,405) we analyzed the development of legal expertise in a critical 1-year period of academic legal training in which advanced law students start practicing to solve complex cases. We were particularly interested in the functional form of the learning curve and inter-individual differences in learning. Performance increases monotonically with the number of practice exams following a slightly concave learning curve without any considerable kinks...

  15. Nature, Nurture, and Expertise.

    Science.gov (United States)

    Plomin, Robert; Shakeshaft, Nicholas G; McMillan, Andrew; Trzaskowski, Maciej

    2014-07-01

    Rather than investigating the extent to which training can improve performance under experimental conditions ('what could be'), we ask about the origins of expertise as it exists in the world ('what is'). We used the twin method to investigate the genetic and environmental origins of exceptional performance in reading, a skill that is a major focus of educational training in the early school years. Selecting reading experts as the top 5% from a sample of 10,000 12-year-olds twins assessed on a battery of reading tests, three findings stand out. First, we found that genetic factors account for more than half of the difference in performance between expert and normal readers. Second, our results suggest that reading expertise is the quantitative extreme of the same genetic and environmental factors that affect reading performance for normal readers. Third, growing up in the same family and attending the same schools account for less than a fifth of the difference between expert and normal readers. We discuss implications and interpretations ('what is inherited is DNA sequence variation'; 'the abnormal is normal'). Finally, although there is no necessary relationship between 'what is' and 'what could be', the most far-reaching issues about the acquisition of expertise lie at the interface between them ('the nature of nurture: from a passive model of imposed environments to an active model of shaped experience').

  16. Planetary Exploration Education: As Seen From the Point of View of Subject Matter Experts

    Science.gov (United States)

    Milazzo, M. P.; Anderson, R. B.; Gaither, T. A.; Vaughan, R. G.

    2016-12-01

    Planetary Learning that Advances the Nexus of Engineering, Technology, and Science (PLANETS) was selected as one of 27 new projects to support the NASA Science Mission Directorate's Science Education Cooperative Agreement Notice. Our goal is to develop and disseminate out-of-school time (OST) curricular and related educator professional development modules that integrate planetary science, technology, and engineering. We are a partnership between planetary science Subject Matter Experts (SMEs), curriculum developers, science and engineering teacher professional development experts and OST teacher networks. The PLANETS team includes the Center for Science Teaching and Learning (CSTL) at Northern Arizona University (NAU); the U.S. Geological Survey (USGS) Astrogeology Science Center (Astrogeology), and the Boston Museum of Science (MOS). Here, we present the work and approach by the SMEs at Astrogeology. As part of this overarching project, we will create a model for improved integration of SMEs, curriculum developers, professional development experts, and educators. For the 2016 and 2017 Fiscal Years, our focus is on creating science material for two OST modules designed for middle school students. We will begin development of a third module for elementary school students in the latter part of FY2017. The first module focuses on water conservation and treatment as applied on Earth, the International Space Station, and at a fictional Mars base. This unit involves the science and engineering of finding accessible water, evaluating it for quality, treating it for impurities (i.e., dissolved and suspended), initial use, a cycle of greywater treatment and re-use, and final treatment of blackwater. The second module involves the science and engineering of remote sensing as it is related to Earth and planetary exploration. This includes discussion and activities related to the electromagnetic spectrum, spectroscopy and various remote sensing systems and techniques. In

  17. Methods to model particulate matter clarification of unit operations subject to unsteady loadings.

    Science.gov (United States)

    Spelman, David; Sansalone, John J

    2017-05-15

    Stormwater, and also wastewater unit operations (UOs) to a much lower extent, are subject to unsteady hydrodynamic and particulate matter (PM) fluxes. Simulating fully transient clarification of hetero-disperse PM requires much greater computational expense compared to steady simulations. An alternative to fully unsteady methods are stepwise steady (SS) methods which use stepwise steady flow transport and fate to approximate unsteady PM clarification of a UO during transient hydraulic loadings such as rainfall-runoff. The rationale is reduced computational effort for computational fluid dynamics (CFD) compared to simulating continuous unsteadiness of such events. An implicit solution stepwise steady (IS3) method is one approach which builds upon previous SS methods. The IS3 method computes steady flows that are representative of unsteady PM transport throughout an unsteady loading. This method departs from some previous SS methods that assume PM fate can be simulated with an instantaneous clarifier (basin) influent flowrate coupled with a PM input. In this study, various SS methods were tested for basins of varying size and residence time to examine PM fate. Differences between SS methods were a function of turnover fraction indicating the role of unsteady flowrates on PM transport for larger basins of longer residence times. The breakpoint turnover fraction was between two and three. The IS3 method best approximated unsteady behavior of larger basins. These methods identified limitations when utilizing standard event-based loading analysis for larger basins. For basins with a turnover fraction less than two, the majority of effluent PM did not originate from the event-based flow; originating from previous event loadings or existing storage. Inter- and multiple event processes and interactions, that are dependent on this inflow turnover fraction, are not accounted for by single event-based inflow models. Results suggest the use of long-term continuous modeling

  18. Integrating Multicultural Subject Matters into Teaching Strategies of Elementary School Teachers (The U.S. State of Kansas

    Directory of Open Access Journals (Sweden)

    Stanka Lunder Verlič

    2014-12-01

    Full Text Available The following academic article is based on a PhD thesis that is currently being completed, titled Education and Qualifications of Elementary School Teachers in the U.S. State of Kansas and Slovenia for teaching in classes with immigrant children. The research study titled Integrating Multicultural Subject Matters into Teaching Strategies of Elementary School Teachers (The U.S. State of Kansas, conducted in 2007 based on a sample of 89 elementary school teachers in the U.S. State of Kansas, represents one aspect of assessing the adequacy of undergraduate education regarding multicultural subject matters for elementary school teachers in Slovenia and the U.S. (State of Kansas as well as the qualifications of elementary school teachers of both countries for working with immigrant children. Despite the long-standing tradition of multicultural education in western countries, the research results for Kansas elementary school teachers showed a presence of significant discrepancies between the actual and optimal integration of multicultural subject matters. These results indicate that future undergraduate study programs will have to invest more time in developing multicultural skills and providing practical experiences for working in a diverse environment.

  19. The power of strategy expertise

    DEFF Research Database (Denmark)

    Lystbæk, Christian Tang

    , languages, metaphors, etc., however, research has only to a very limited extent been studying how strategy expertise is being received and reproduced in strategic practices. This paper contributes to the research engaged in exploring the power of strategy expertise. This paper unfolds a conception......This paper explores the power of strategy expertise in strategy making. Strategy has become central and ubiquitous in management within the last decades. Recently, research has started to explore how the power of strategy expertise unfolds in strategy making, for instance through specific logics...... of strategy expertise that stresses its innovative and critical capacity as well as its structural constraints....

  20. Subject Matter Expert Evaluation of Multi-Flight Common Route Advisories

    Science.gov (United States)

    Bilimoria, Karl D.; Hayashi, Miwa; Sheth, Kapil

    2017-01-01

    manager finds the advisory to be operationally appropriate, he or she would coordinate with the Area Supervisor(s) of the sectors that currently control the flights in the advisory. When the traffic manager accepts the MFCR advisory via the user interface, the corresponding flight plan amendments would be sent to the displays of the appropriate sector controllers, using the Airborne Re-Routing (ABRR) capability which is scheduled for nationwide operation in 2017. The sector controllers would then offer this time-saving route modification to the pilots of the affected flights via datalink (or voice), and implement the corresponding flight plan amendment if the pilots accept it. MFCR is implemented as an application in the software environment of the Future Air traffic management Concepts Evaluation Tool (FACET). This paper focuses on an initial subject matter expert (SME) evaluation of MFCR. The evaluation covers MFCRs operational concept, algorithm, and user interface.

  1. Using Highlighting to Train Attentional Expertise.

    Directory of Open Access Journals (Sweden)

    Brett Roads

    Full Text Available Acquiring expertise in complex visual tasks is time consuming. To facilitate the efficient training of novices on where to look in these tasks, we propose an attentional highlighting paradigm. Highlighting involves dynamically modulating the saliency of a visual image to guide attention along the fixation path of a domain expert who had previously viewed the same image. In Experiment 1, we trained naive subjects via attentional highlighting on a fingerprint-matching task. Before and after training, we asked subjects to freely inspect images containing pairs of prints and determine whether the prints matched. Fixation sequences were automatically scored for the degree of expertise exhibited using a Bayesian discriminative model of novice and expert gaze behavior. Highlighted training causes gaze behavior to become more expert-like not only on the trained images but also on transfer images, indicating generalization of learning. In Experiment 2, to control for the possibility that the increase in expertise is due to mere exposure, we trained subjects via highlighting of fixation sequences from novices, not experts, and observed no transition toward expertise. In Experiment 3, to determine the specificity of the training effect, we trained subjects with expert fixation sequences from images other than the one being viewed, which preserves coarse-scale statistics of expert gaze but provides no information about fine-grain features. Observing at least a partial transition toward expertise, we obtain only weak evidence that the highlighting procedure facilitates the learning of critical local features. We discuss possible improvements to the highlighting procedure.

  2. Relational Expertise in Participatory Design

    DEFF Research Database (Denmark)

    Dindler, Christian; Iversen, Ole Sejer

    2014-01-01

    This paper positions relation expertise as a core competence in participatory design. It is an expertise that demands the participatory designer to stimulate the emergence of loosely coupled knotworks, and obtain symbiotic agreement between participants disregarding their professional and social...... status. We illustrate our theoretical argument for a relational expertise with a running example from a participatory design process engaging an interprofessional group of participants in a project on future technology enabled learning environments....

  3. Bromatological composition and dry matter digestibility of millet cultivars subjected to nitrogen doses

    Directory of Open Access Journals (Sweden)

    W.H.D. Buso

    2014-06-01

    Full Text Available The bromatological composition and in vitro dry matter digestibility of millet cultivars were assessed for different nitrogen doses and two sowing seasons in the Ceres municipality of Goiás state, Brazil. The treatments consisted of three millet cultivars (ADR-7010, ADR-500 and BRS-1501, four nitrogen (N doses (0, 50, 100 and 200kg ha-1 of N and two sowing seasons. Three replicates and a randomised block design with a 3 x 4 x 2 factorial scheme were used. Two cuttings were performed in each season when plants reached an average height of 0.70 cm. No significant interactions were observed between or among cultivars for N doses and dry matter (DM, crude protein (CP, neutral detergent fibre (NDF and acid detergent fibre (ADF contents. The DM, CP, NDF and ADF contents were significantly different between N doses. The DM and CP contents increased as the N dose increased to 100kg ha-1. The maximum DM and CP contents were 11.14 and 22.53%, respectively. The NDF and ADF contents were higher in the control treatment (60.11 and 30.01%, respectively. In addition, the lowest ADF and NDF concentrations occurred at an N dose of 50kg ha-1 (56.33 and 30.23%, respectively. The DM contents were higher for the February sowing, with an average of 10.59%. The highest CP and ADF contents were found for the December sowing (22.46 and 31.58%, respectively. No significant differences were found for millet cultivars, N doses or sowing seasons. A significant interaction was found between sowing season and millet cultivar. The BRS-1501 cultivar had a higher in vitro dry matter digestibility in the December/2010 sowing (73.88%.

  4. Individualized Gaussian process-based prediction and detection of local and global gray matter abnormalities in elderly subjects.

    Science.gov (United States)

    Ziegler, G; Ridgway, G R; Dahnke, R; Gaser, C

    2014-08-15

    Structural imaging based on MRI is an integral component of the clinical assessment of patients with potential dementia. We here propose an individualized Gaussian process-based inference scheme for clinical decision support in healthy and pathological aging elderly subjects using MRI. The approach aims at quantitative and transparent support for clinicians who aim to detect structural abnormalities in patients at risk of Alzheimer's disease or other types of dementia. Firstly, we introduce a generative model incorporating our knowledge about normative decline of local and global gray matter volume across the brain in elderly. By supposing smooth structural trajectories the models account for the general course of age-related structural decline as well as late-life accelerated loss. Considering healthy subjects' demography and global brain parameters as informative about normal brain aging variability affords individualized predictions in single cases. Using Gaussian process models as a normative reference, we predict new subjects' brain scans and quantify the local gray matter abnormalities in terms of Normative Probability Maps (NPM) and global z-scores. By integrating the observed expectation error and the predictive uncertainty, the local maps and global scores exploit the advantages of Bayesian inference for clinical decisions and provide a valuable extension of diagnostic information about pathological aging. We validate the approach in simulated data and real MRI data. We train the GP framework using 1238 healthy subjects with ages 18-94 years, and predict in 415 independent test subjects diagnosed as healthy controls, Mild Cognitive Impairment and Alzheimer's disease. Copyright © 2014 The Authors. Published by Elsevier Inc. All rights reserved.

  5. A common NTRK2 variant is associated with emotional arousal and brain white-matter integrity in healthy young subjects

    Science.gov (United States)

    Spalek, K; Coynel, D; Freytag, V; Hartmann, F; Heck, A; Milnik, A; de Quervain, D; Papassotiropoulos, A

    2016-01-01

    Dysregulation of emotional arousal is observed in many psychiatric diseases such as schizophrenia, mood and anxiety disorders. The neurotrophic tyrosine kinase receptor type 2 gene (NTRK2) has been associated with these disorders. Here we investigated the relation between genetic variability of NTRK2 and emotional arousal in healthy young subjects in two independent samples (n1=1171; n2=707). In addition, diffusion tensor imaging (DTI) data in a subgroup of 342 participants were used to identify NTRK2-related white-matter structure differences. After correction for multiple testing, we identified a NTRK2 single nucleotide polymorphism associated with emotional arousal in both samples (n1: Pnominal=0.0003, Pcorrected=0.048; n2: Pnominal=0.0141, Pcorrected=0.036). DTI revealed significant, whole-brain corrected correlations between emotional arousal and brain white-matter mean diffusivity (MD), as well as significant, whole-brain corrected NTRK2 genotype-related differences in MD (PFWE<0.05). Our study demonstrates that genetic variability of NTRK2, a susceptibility gene for psychiatric disorders, is related to emotional arousal and—independently—to brain white-matter properties in healthy individuals. PMID:26978740

  6. A common NTRK2 variant is associated with emotional arousal and brain white-matter integrity in healthy young subjects.

    Science.gov (United States)

    Spalek, K; Coynel, D; Freytag, V; Hartmann, F; Heck, A; Milnik, A; de Quervain, D; Papassotiropoulos, A

    2016-03-15

    Dysregulation of emotional arousal is observed in many psychiatric diseases such as schizophrenia, mood and anxiety disorders. The neurotrophic tyrosine kinase receptor type 2 gene (NTRK2) has been associated with these disorders. Here we investigated the relation between genetic variability of NTRK2 and emotional arousal in healthy young subjects in two independent samples (n1=1171; n2=707). In addition, diffusion tensor imaging (DTI) data in a subgroup of 342 participants were used to identify NTRK2-related white-matter structure differences. After correction for multiple testing, we identified a NTRK2 single nucleotide polymorphism associated with emotional arousal in both samples (n1: Pnominal=0.0003, Pcorrected=0.048; n2: Pnominal=0.0141, Pcorrected=0.036). DTI revealed significant, whole-brain corrected correlations between emotional arousal and brain white-matter mean diffusivity (MD), as well as significant, whole-brain corrected NTRK2 genotype-related differences in MD (PFWEemotional arousal and-independently-to brain white-matter properties in healthy individuals.

  7. Relationship between mathematics teacher subject matter knowledge, pedagogical content knowledge and professional development needs

    Science.gov (United States)

    Tajudin, Nor'ain Mohd; Chinnappan, Mohan; Saad, Noor Shah

    2017-05-01

    Two key variables emerged from the literature review is that Specific Matter Knowledge [SMK] and Pedagogical Content Knowledge [PCK] can influence the mathematics teachers' Professional Development [PD] needs. However, the key variables of SMK and PCK that were being investigated were not defined clearly. Empirical evidence that support relationship between SMK and PD and PCK and PD were not verified. In addition, how does PCK mediate SMK and PD is not clear and somewhat lacking. Therefore, the purpose of this paper was to examine the relationship between primary mathematics teacher's SMK, PCK and PD needs. Results of path analysis with SmartPLS indicated that the direct effect of SMK on PD was mediated via PCK. This data provide support for the claim that PD programs for future teachers of primary mathematics should be driven by a more nuanced understanding of the link between SMK and PCK.

  8. The Role of Reading Comprehension in Large-Scale Subject-Matter Assessments

    Science.gov (United States)

    Zhang, Ting

    2013-01-01

    This study was designed with the overall goal of understanding how difficulties in reading comprehension are associated with early adolescents' performance in large-scale assessments in subject domains including science and civic-related social studies. The current study extended previous research by taking a cognition-centered approach based on…

  9. Subjective Evaluations of Alcohol-Related Consequences among College Students: Experience with Consequences Matters

    Science.gov (United States)

    Leavens, Eleanor L.; Leffingwell, Thad R.; Miller, Mary Beth; Brett, Emma I.; Lombardi, Nathaniel

    2017-01-01

    Objective: Research suggests college students rate some alcohol-related consequences less negatively than others, yet it is unclear how or when these differences in perception develop. The current study compared college students' subjective evaluations of alcohol-related consequences that they had and had not experienced in order to test the…

  10. The impact of expertise in olfaction

    Directory of Open Access Journals (Sweden)

    Jean-Pierre eROYET

    2013-12-01

    Full Text Available Olfactory expertise remains poorly understood, most likely because experts in odor, such as perfumers, sommeliers and oenologists, are much rarer than experts in other modalities, such as musicians or sportsmen. In this review, we address the specificities of odor expertise in both odor experts and in a priori untrained individuals who have undergone specific olfactory training in the frame of an experiment, such as repeated exposure to odors or associative learning. Until the 21st century, only the behavioral effects of olfactory training of untrained control individuals had been reported, revealing an improvement of olfactory performance in terms of sensitivity, discrimination, memory, and identification. Behavioral studies of odor experts have been scarce, with inconsistent or inconclusive results. Recently, the development of cerebral imaging techniques has enabled the identification of brain areas and neural networks involved in odor processing, revealing functional and structural modifications as a function of experience. The behavioral approach to odor expertise has also evolved. Researchers have particularly focused on odor mental imagery, which is characteristic of odor experts, because this ability is absent in the average person but is part of a perfumer’s professional practice. This review summarizes behavioral, functional, and structural findings on odor expertise. These data are compared with those obtained using animals subjected to prolonged olfactory exposure or to olfactory-enriched environments and are discussed in the context of functional and structural plasticity.

  11. Relative activity of cerebral subcortical gray matter in varying states of attention and awareness in normal subjects and patient studies

    Energy Technology Data Exchange (ETDEWEB)

    Cooper, M.; Chen, C.T.; Levy, J.; Wagner, N.; Spire, J.P.; Jacobsen, J.; Meltzer, H.; Metz, J.; Beck, R.N.

    1985-05-01

    An important aspect of the study of brain function involves measurement of the relationships; between activities in the subcortical gray matter of the caudate and of the thalamus; and between these structures and functional cortical areas. The authors have studied these relationships in 22 subjects under different conditions of activation, sleep and sensory deprivation using a PET VI system and F-18-2DG to determine regional cerebral metabolism. Subject activating conditions were maintained throughout the period of equilibration of F-18-2DG and E.E.G.'s were monitored. Multiple tomographic slices of 1-2 million counts were obtained simultaneously with slice separation of 14mm and each plane parallel to the cantho-meatal line. In activated and non-activated awake conditions for normal subjects, left and right thalmus-to-caudate ratios were similar and greater than unity. This relationship was maintained in non-REM sleep, but was reversed and divergent in REM sleep and sensory deprivation; this was also evident in 3/4 narcoleptics awake and asleep in non-REM and REM and 2/3 schizophrenics and affective disorder, subjects. This approach appears to have potential for characterizating normal and disordered regional cerebral function.

  12. Concentration dynamics and biodegradability of dissolved organic matter in wetland soils subjected to experimental warming.

    Science.gov (United States)

    Wang, Hang; Holden, Joseph; Zhang, Zhijian; Li, Meng; Li, Xia

    2014-02-01

    Dissolved organic matter (DOM) is the most bioavailable soil organic pool. Understanding how DOM responds to elevated temperature is important for forecasting soil carbon (C) dynamics under climate warming. Here a 4.5-year field microcosm experiment was carried out to examine temporal DOM concentration dynamics in soil pore-water from six different subtropical wetlands. Results are compared between control (ambient temperature) and warmed (+5°C) treatments. UV-visible and fluorescence spectroscopy was performed to reveal DOM structural complexity at the end of the warming incubation. Elevated temperature resulted in initially (1 to 2.5 years) high pore-water DOM concentrations in warmed samples. These effects gradually diminished over longer time periods. Of the spectral indices, specific UV absorbance at 280 nm and humification index were significantly higher, while the signal intensity ratio of the fulvic-like to humic-like fluorescence peak was lower in warmed samples, compared to the control. Fluorescence regional integration analysis further suggested that warming enhanced the contribution of humic-like substances to DOM composition for all tested wetlands. These spectral fingerprints implied a declined fraction of readily available substrates in DOM allocated to microbial utilization in response to 4.5 years of warming. As a negative feedback, decreased DOM biodegradability may have the potential to counteract initial DOM increases and alleviate C loss in water-saturated wetland soils. © 2013.

  13. The paradox of scientific expertise

    DEFF Research Database (Denmark)

    Alrøe, Hugo Fjelsted; Noe, Egon

    2011-01-01

    Modern societies depend on a growing production of scientific knowledge, which is based on the functional differentiation of science into still more specialised scientific disciplines and subdisciplines. This is the basis for the paradox of scientific expertise: The growth of science leads...... cross-disciplinary research and in the collective use of different kinds of scientific expertise, and thereby make society better able to solve complex, real-world problems....... to a fragmentation of scientific expertise. To resolve this paradox, the present paper investigates three hypotheses: 1) All scientific knowledge is perspectival. 2) The perspectival structure of science leads to specific forms of knowledge asymmetries. 3) Such perspectival knowledge asymmetries must be handled...

  14. How to foster student-student learning of science? The student, the teacher and the subject matter

    Science.gov (United States)

    Bianchini, Julie A.

    2011-12-01

    In this response to Konstantinos Alexakos, Jayson K. Jones, and Victor H. Rodriguez's study, I discuss ways attending to student membership in groups can both inform research on equity and diversity in science education and improve the teaching of science to all students. My comments are organized into three sections: how underrepresented students' experiences in science classrooms are shaped by their peers; how science teachers can help students listen to and learn from one another; and how the subject matter can invite or discourage student participation in science. More specifically, I underscore the need for teachers and students to listen to one another to promote student learning of science. I also highlight the importance of science education researchers and science teachers viewing students both as individuals and as members of multiple groups; women of color, for example, should be understood as similar to and different from each other, from European American women and from ethnic minorities in general.

  15. Insight on AV-45 binding in white and grey matter from histogram analysis: a study on early Alzheimer's disease patients and healthy subjects

    Energy Technology Data Exchange (ETDEWEB)

    Nemmi, Federico; Saint-Aubert, Laure; Peran, Patrice [Inserm, Imagerie Cerebrale et Handicaps Neurologiques UMR 825, Centre Hospitalier Universitaire de Toulouse (France); Universite de Toulouse, UPS, Imagerie Cerebrale et Handicaps Neurologiques UMR 825, Centre Hospitalier Universitaire de Toulouse, Toulouse (France); Adel, Djilali; Salabert, Anne-Sophie; Payoux, Pierre [Inserm, Imagerie Cerebrale et Handicaps Neurologiques UMR 825, Centre Hospitalier Universitaire de Toulouse (France); Universite de Toulouse, UPS, Imagerie Cerebrale et Handicaps Neurologiques UMR 825, Centre Hospitalier Universitaire de Toulouse, Toulouse (France); Centre Hospitalier Universitaire de Toulouse, Service de Medecine Nucleaire, Pole Imagerie, Toulouse (France); Pariente, Jeremie [Inserm, Imagerie Cerebrale et Handicaps Neurologiques UMR 825, Centre Hospitalier Universitaire de Toulouse (France); Universite de Toulouse, UPS, Imagerie Cerebrale et Handicaps Neurologiques UMR 825, Centre Hospitalier Universitaire de Toulouse, Toulouse (France); Centre Hospitalier Universitaire de Toulouse, Service de Neurologie, Pole Neurosciences, Toulouse (France); Barbeau, Emmanuel J. [Centre Hospitalier Universitaire de Toulouse, Service de Neurologie, Pole Neurosciences, Toulouse (France); Universite de Toulouse, UPS, Centre de Recherche Cerveau et Cognition, CNRS, CerCo, Toulouse (France)

    2014-07-15

    AV-45 amyloid biomarker is known to show uptake in white matter in patients with Alzheimer's disease (AD), but also in the healthy population. This binding, thought to be of a non-specific lipophilic nature, has not yet been investigated. The aim of this study was to determine the differential pattern of AV-45 binding in white matter in healthy and pathological populations. We recruited 24 patients presenting with AD at an early stage and 17 matched, healthy subjects. We used an optimized positron emission tomography-magnetic resonance imaging (PET-MRI) registration method and an approach based on an intensity histogram using several indices. We compared the results of the intensity histogram analyses with a more canonical approach based on target-to-cerebellum Standard Uptake Value (SUVr) in white and grey matter using MANOVA and discriminant analyses. A cluster analysis on white and grey matter histograms was also performed. White matter histogram analysis revealed significant differences between AD and healthy subjects, which were not revealed by SUVr analysis. However, white matter histograms were not decisive to discriminate groups, and indices based on grey matter only showed better discriminative power than SUVr. The cluster analysis divided our sample into two clusters, showing different uptakes in grey, but also in white matter. These results demonstrate that AV-45 binding in white matter conveys subtle information not detectable using the SUVr approach. Although it is not more efficient than standard SUVr in discriminating AD patients from healthy subjects, this information could reveal white matter modifications. (orig.)

  16. Elevated leukocyte count in asymptomatic subjects is associated with a higher risk for cerebral white matter lesions.

    Science.gov (United States)

    Kim, Chi Kyung; Lee, Seung-Hoon; Kim, Beom Joon; Ryu, Wi-Sun; Choi, Seung Ho; Oh, Byung-Hee; Yoon, Byung-Woo

    2011-04-01

    Cerebral white matter lesions (WMLs) are radiologic markers of small vessel disease in brain, and inflammatory processes were related to WMLs. We propose to determine if elevated leukocyte count was associated with a higher risk of WMLs. 1586 asymptomatic subjects who visited our hospital for a routine health check-up were enrolled. Leukocyte counts were measured and the presence of moderate to severe WMLs was determined by brain MRI. Thirty (1.9%) had moderate to severe WMLs, and a significant greater proportion (4.1%) of subjects in the highest leukocyte count quartile had moderate to severe WMLs. After adjusting by C-reactive protein, aspirin use and cardiovascular risk factors, the highest quartile of leukocyte count (≥6.7×10⁹/L) was significantly associated with moderate to severe WMLs compared with the lowest quartile [adjusted odds ratio, 4.03; 95% confidence interval, 1.05-15.5]. The authors report for the first time that an elevated leukocyte count is independently associated with moderate to severe WMLs. Copyright © 2010. Published by Elsevier B.V.

  17. Intuitive expertise in ICT graduate supervision

    Directory of Open Access Journals (Sweden)

    Jill Jameson

    2002-12-01

    Full Text Available Intuitive expertise in the application of advanced interdisciplinary facilitation is the subject of this personal reflection on the graduate supervisory style of Professor David Squires in computers in education. This single-case reflective study examines the characteristics of effective supervision observed during masters and doctoral supervision at King's College in the years 1990-9. Interdisciplinarity in ICT graduate studies particularly requires a fluency of supervisory expertise in enabling supervisees to combine multiple complex perspectives from a number of fields of knowledge. Intuitive combinatory aspects of supervision are highlighted in this reflection on the role carried out by an academic expert in facilitating student success. This is examined from a perspective incorporating affective as well as intellectual elements, informed by characteristics identified in professional sports and performing arts coaching/mentoring. Key characteristics comprising a model of intuitive expertise in ICT graduate supervision were outlined. The resultant portrait aims to complement existing literature on graduate supervision, with reference to the field of ICTI computers in education relating to student hypermedia composition.

  18. NPY mRNA Expression in the Prefrontal Cortex: Selective Reduction in the Superficial White Matter of Subjects with Schizoaffective Disorder

    Science.gov (United States)

    Morris, Harvey M.; Stopczynski, Rachelle E.; Lewis, David A.

    2009-01-01

    Background Alterations in the inhibitory circuitry of the dorsolateral prefrontal cortex (DLPFC) in schizophrenia include reduced expression of the messenger RNA (mRNA) for somatostatin (SST), a neuropeptide present in a subpopulation of γ-aminobutyric acid (GABA) neurons. Neuropeptide Y (NPY) is expressed in a subset of SST-containing interneurons and lower levels of NPY mRNA have also been reported in schizophrenia spectrum disorders. However, whether the alterations in these two transcripts identify the same, particularly vulnerable, subset of GABA neurons has not been examined. Methods We used in situ hybridization to quantify NPY mRNA levels in DLPFC gray and white matter from 23 pairs of subjects with schizophrenia or schizoaffective disorder and matched normal control subjects; results were compared to those from a previous study of SST mRNA expression in the same subjects. Results In contrast to SST mRNA, NPY mRNA levels were not significantly lower in the gray matter of subjects with schizophrenia or schizoaffective disorder. However, NPY, but not SST, mRNA expression was significantly lower in the superficial white matter of subjects with schizoaffective disorder. Conclusion These findings suggest that the alterations in SST-containing interneurons in schizophrenia and schizoaffective disorder are selective for the subset that do not express NPY mRNA, and that lower NPY mRNA expression in the superficial white matter may distinguish subjects with schizoaffective disorder from those with schizophrenia. PMID:19804960

  19. The Subject's Matter

    DEFF Research Database (Denmark)

    in the significance of the body in our mental life. The sixteen specially commissioned essays in this book reflect the advances in these fields. The book is divided into three parts, each part covering a topic central to an explanation of bodily self-awareness: representation of the body; the sense of bodily......The body may be the object we know the best. It is the only object from which we constantly receive a flow of information through sight and touch; and it is the only object we can experience from the inside, through our proprioceptive, vestibular, and visceral senses. Yet there have been very few...... books that have attempted to consolidate our understanding of the body as it figures in our experience and self-awareness. This volume offers an interdisciplinary and comprehensive treatment of bodily self-awareness, the first book to do so since the landmark 1995 collection The Body and the Self...

  20. Understanding Expertise from Elite Badminton Coaches

    Science.gov (United States)

    Sheu, Feng-Ru

    2011-01-01

    Badminton is a growing sport with a limited amount of expertise both in players and coaches so attempts are being made to extend the expertise internationally. The purpose of this study is to gain an understanding of coaching expertise in badminton because such an understanding might have implications for a more general understanding of expertise,…

  1. DNA as patentable subject matter and a narrow framework for addressing the perceived problems caused by gene patents.

    Science.gov (United States)

    Schilling, Stephen H

    2011-12-01

    Concerns about the alleged harmful effects of gene patents--including hindered research and innovation and impeded patient access to high-quality genetic diagnostic tests--have resulted in overreactions from the public and throughout the legal profession. These overreactions are exemplified by Association for Molecular Pathology v. U.S. Patent and Trademark Office, a 2010 case in the Southern District of New York that held that isolated DNA is unpatentable subject matter under 35 U.S.C. § 101. The problem with these responses is that they fail to adequately consider the role that gene patents and patents on similar biomolecules play in facilitating investment in the costly and risky developmental processes required to transform the underlying inventions into marketable products. Accordingly, a more precisely refined solution is advisable. This Note proposes a narrowly tailored set of solutions to address the concerns about gene patents without destroying the incentives for companies to create and commercialize inventions derived from these and similar patents.

  2. Developing Pedagogical Content Knowledge for Teaching a New Topic: More Than Teaching Experience and Subject Matter Knowledge

    Science.gov (United States)

    Chan, Kennedy Kam Ho; Yung, Benny Hin Wai

    2017-03-01

    Teaching experience has been identified as an important factor in pedagogical content knowledge (PCK) development. However, little is known about how experienced teachers may draw on their previous experience to facilitate their PCK development. This study examined how two experienced high school biology teachers approached the teaching of a newly introduced topic in the curriculum, polymerase chain reaction and their PCK development from the pre-lesson planning phase through the interactive phase to the post-lesson reflection phase. Multiple data sources included classroom observations, field notes, semi-structured interviews and classroom artefacts. It was found that the teachers' previous experience informed their planning for teaching the new topic, but in qualitatively different ways. This, in turn, had a bearing on their new PCK development. Subject matter knowledge (SMK) can not only facilitate but may also hinder this development. Our findings identify two types of experienced teachers: those who can capitalise on their previous teaching experiences and SMK to develop new PCK and those who do not. The critical difference is whether in the lesson planning stage, the teacher shows the disposition to draw on a generalised mental framework that enables the teacher to capitalise on his existing SMK to develop new PCK. Helping teachers to acquire this disposition should be a focus for teacher training in light of continuous curriculum changes.

  3. Are tutor behaviors in problem-based learning stable?: a generalizability study of social congruence, expertise and cognitive congruence.

    Science.gov (United States)

    Williams, Judith C; Alwis, W A M; Rotgans, Jerome I

    2011-10-01

    The purpose of this study was to investigate the stability of three distinct tutor behaviors (1) use of subject-matter expertise, (2) social congruence and (3) cognitive congruence, in a problem-based learning (PBL) environment. The data comprised the input from 16,047 different students to a survey of 762 tutors administered in three consecutive semesters. Over the three semesters each tutor taught two of the same course and one different course. A generalizability study was conducted to determine whether the tutor behaviors were generalizable across the three measurement occasions. The results indicate that three semesters are sufficient to make generalizations about all three tutor behaviors. In addition the results show that individual differences between tutors account for the greatest differences in levels of expertise, social congruence and cognitive congruence. The study concludes that tutor behaviors are fairly consistent in PBL and somewhat impervious to change. Implications of these findings for tutor training are discussed.

  4. The mediatization of health expertise

    DEFF Research Database (Denmark)

    Christensen, Christa Lykke

    2016-01-01

    , the article is informed by ‘mediatization’ theory and demonstrates how television influences changes to the discursive construction of Health and health expertise in factual programming in this 20-year period. The analysis demonstrates how early factual programmes were dominated by information on illness...

  5. Sibling dynamics and sport expertise.

    Science.gov (United States)

    Hopwood, M J; Farrow, D; MacMahon, C; Baker, J

    2015-10-01

    Family members are known to be highly influential in the development of sport expertise. To date, much of the research in this area has focused on parents, with less known about sibling influences on expertise. This investigation explored associations between sport expertise, sibling characteristics, and sibling participation in sport and physical activity. Athletes representing three skill levels provided details of sibling characteristics and participation in sport and physical activity via the Developmental History of Athletes Questionnaire. Elite athletes were more likely to be later-born children, while pre-elite and non-elite athletes were more likely to be first-born. Compared with siblings of non-elite athletes, siblings of elite athletes were more likely to have participated in regular physical activity and were more likely to have participated in sport at the pre-elite and elite levels. These results suggest siblings may play a key role in sport expertise development. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  6. The effect of productive classroom talk and metacommunication on young children's oral communicative competence and subject matter knowledge: An intervention study in early childhood education

    NARCIS (Netherlands)

    van der Veen, C.; de Mey, J.R.P.B.; van Kruistum, C.J.; van Oers, B.

    The aim of the present study was to investigate the effect of productive classroom talk and metacommunication on the development of young children's oral communicative competence and subject matter knowledge. This study can be characterized as a quasi-experimental study with a

  7. A Case Study of Beginning Science Teachers' Subject Matter (SMK) and Pedagogical Content Knowledge (PCK) of Teaching Chemical Reaction in Turkey

    Science.gov (United States)

    Usak, Muhammet; Ozden, Mustafa; Eilks, Ingo

    2011-01-01

    This paper describes a case study focusing on the subject matter knowledge, pedagogical content knowledge, and beliefs about science teaching of student teachers in Turkey at the start of their university education. The topic of interest was that of teaching chemical reactions in secondary chemistry education. A written test was developed which…

  8. Exploring the Relationship between Secondary Science Teachers' Subject Matter Knowledge and Knowledge of Student Conceptions While Teaching Evolution by Natural Selection

    Science.gov (United States)

    Lucero, Margaret M.; Petrosino, Anthony J.; Delgado, Cesar

    2017-01-01

    The fundamental scientific concept of evolution occurring by natural selection is home to many deeply held alternative conceptions and considered difficult to teach. Science teachers' subject matter knowledge (SMK) and the pedagogical content knowledge (PCK) component of knowledge of students' conceptions (KOSC) can be valuable resources for…

  9. Is Practical Subject Matter Knowledge Still Important? Examining the Siedentopian Perspective on the Role of Content Knowledge in Physical Education Teacher Education

    Science.gov (United States)

    Herold, Frank; Waring, Michael

    2017-01-01

    Background: The role that content knowledge, an important component of practical subject matter knowledge, plays for pre-service teachers (PSTs) in physical education teacher education (PETE) remains contested and unclear. Whilst some researchers emphasise the facilitative nature of such knowledge, others criticise that too much focus on content…

  10. Does Variation in the Extent of Generalized Trust, Individual Education and Extensiveness of Social Security Policies Matter for Maximization of Subjective Well-Being?

    Science.gov (United States)

    Valeeva, Rania F.

    2016-01-01

    In this paper, I examine whether generalized trust and education, as well as social security policies of welfare state institutions matter for cross-national differences in subjective well-being (SWB), because knowledge on this issue is still lacking. For this purpose I integrated the insights of two sociological theories: Social Function…

  11. The Examination of Secondary Education Chemistry Curricula Published between 1957-2007 in Terms of the Dimensions of Rationale, Goals, and Subject-Matter

    Science.gov (United States)

    Pekdag, Bulent; Erol, Hilal

    2013-01-01

    Fifteen secondary education chemistry curricula published from 1957 until 2007 were examined based on the dimensions of rationale, goals, and subject matter. An examination of documents in the scope of qualitative research was carried out in the study. The goals included in the examined chemistry curricula were analyzed according to the cognitive,…

  12. The transformation of (bio)ethics expertise in a world of ethical pluralism.

    Science.gov (United States)

    Kovács, József

    2010-12-01

    Today, bioethics experts have an increasing role in public life. However, the question arises: what does bioethics expertise really mean? Can there be such a thing in our globalised world characterised by ethical pluralism? I will argue that bioethics as a discipline represents the transformation of ethics expertise from a hard to a soft form of it. Bioethics was born as a reaction to the growing awareness of ethical pluralism, and it denied the hard form of normative-prescriptive ethics expertise (the ability to determine what is the right course of action for others), particularly in its medical ethics form. In contrast, the traditional medical ethics model, and pre-modern societies in general, believed in hard normative ethics expertise. From this followed the characteristic paternalism of traditional medical practice: if physicians were experts in moral matters as well, if they knew what the right course of action to choose was, then they had a right to benevolently force this course of action on their patients. The remnants of this doctrine, although rarely stated explicitly, still can often be seen in clinical practice. The whole bioethics movement can be seen as a radical denial of the doctrine of physician's hard expertise in moral matters. Bioethics, however, represents a type of soft ethics expertise (mainly value sensitivity). Hence follows the seeming paradox of bioethics expertise: bioethics is both a denial of ethics expertise (in its hard form) as well as a type of (soft) ethics expertise.

  13. E-expertise modern collective intelligence

    CERN Document Server

    Gubanov, Dmitry; Novikov, Dmitry; Raikov, Alexander

    2014-01-01

      This book focuses on organization and mechanisms of expert decision-making support using modern information and communication technologies, as well as information analysis and collective intelligence technologies (electronic expertise or simply e-expertise). Chapter 1 (E-Expertise) discusses the role of e-expertise in decision-making processes. The procedures of e-expertise are classified, their benefits and shortcomings are identified, and the efficiency conditions are considered. Chapter 2 (Expert Technologies and Principles) provides a comprehensive overview of modern expert technologies. A special emphasis is placed on the specifics of e-expertise. Moreover, the authors study the feasibility and reasonability of employing well-known methods and approaches in e-expertise. Chapter 3 (E-Expertise: Organization and Technologies) describes some examples of up-to-date technologies to perform e-expertise. Chapter 4 (Trust Networks and Competence Networks) deals with the problems of expert finding and grouping...

  14. Location of lacunar infarcts correlates with cognition in a sample of non-disabled subjects with age-related white-matter changes: the LADIS study

    DEFF Research Database (Denmark)

    Benisty, S; Gouw, A A; Porcher, R

    2009-01-01

    in the following areas: lobar white matter, putamen/pallidum, thalamus, caudate nucleus, internal/external capsule, infratentorial areas. An analysis of covariance was performed after adjustment for possible confounders. RESULTS: Among 633 subjects, 47% had at least one lacune (31% at least one within basal...... a significant negative association between the presence of lacunes in putamen/pallidum and the memory compound Z score (beta = -0.13; p = 0.038). By contrast, no significant negative association was found between cognitive parameters and the presence of lacunes in internal capsule, lobar white matter...

  15. Time to Tango: expertise and contextual anticipation during action observation.

    Science.gov (United States)

    Amoruso, Lucía; Sedeño, Lucas; Huepe, David; Tomio, Ailin; Kamienkowski, Juan; Hurtado, Esteban; Cardona, Juan Felipe; Álvarez González, Miguel Ángel; Rieznik, Andrés; Sigman, Mariano; Manes, Facundo; Ibáñez, Agustín

    2014-09-01

    Predictive theories of action observation propose that we use our own motor system as a guide for anticipating and understanding other people's actions through the generation of context-based expectations. According to this view, people should be better in predicting and interpreting those actions that are present in their own motor repertoire compared to those that are not. We recorded high-density event-related potentials (ERPs: P300, N400 and Slow Wave, SW) and source estimation in 80 subjects separated by their level of expertise (experts, beginners and naïves) as they observed realistic videos of Tango steps with different degrees of execution correctness. We also performed path analysis to infer causal relationships between ongoing anticipatory brain activity, evoked semantic responses, expertise measures and behavioral performance. We found that anticipatory activity, with sources in a fronto-parieto-occipital network, early discriminated between groups according to their level of expertise. Furthermore, this early activity significantly predicted subsequent semantic integration indexed by semantic responses (N400 and SW, sourced in temporal and motor regions) which also predicted motor expertise. In addition, motor expertise was a good predictor of behavioral performance. Our results show that neural and temporal dynamics underlying contextual action anticipation and comprehension can be interpreted in terms of successive levels of contextual prediction that are significantly modulated by subject's prior experience. Copyright © 2014 Elsevier Inc. All rights reserved.

  16. Expertise in Performance Assessment: Assessors' Perspectives

    Science.gov (United States)

    Berendonk, Christoph; Stalmeijer, Renée E.; Schuwirth, Lambert W. T.

    2013-01-01

    The recent rise of interest among the medical education community in individual faculty making subjective judgments about medical trainee performance appears to be directly related to the introduction of notions of integrated competency-based education and assessment for learning. Although it is known that assessor expertise plays an important…

  17. The Problem of Expertise in Knowledge Societies

    Science.gov (United States)

    Grundmann, Reiner

    2017-01-01

    This paper puts forward a theoretical framework for the analysis of expertise and experts in contemporary societies. It argues that while prevailing approaches have come to see expertise in various forms and functions, they tend to neglect the broader historical and societal context, and importantly the relational aspect of expertise. This will be…

  18. Development of Design Expertise by Architecture Students

    Science.gov (United States)

    Oluwatayo, Adedapo Adewunmi; Ezema, Isidore; Opoko, Akunnaya

    2017-01-01

    What constitutes design ability and design expertise in architecture? Which categories of design expertise can be identified amongst architecture students? And which input factors differentiate one level of expertise from another? These questions were addressed in a survey of architecture students in Nigeria. Based on the results, students were…

  19. M&A Negotiations and Lawyer Expertise

    NARCIS (Netherlands)

    Karsten, C.; Malmendier, U.; Sautner, Z.

    2013-01-01

    We use proprietary data to look into the "black box" of M&A negotiations and to shed light on the effects of lawyer expertise on M&A contract design, the bargaining process, and acquisition pricing. Measuring the effects of buyer relative to seller lawyer expertise, we document that more expertise

  20. Financial expertise as an arms race

    NARCIS (Netherlands)

    Glode, V.; Green, R.C.; Lowery, R.

    2012-01-01

    We show that firms intermediating trade have incentives to overinvest in financial expertise. In our model, expertise improves firms’ ability to estimate value when trading a security. Expertise creates asymmetric information, which, under normal circumstances, works to the advantage of the expert

  1. Perfection of methods of training to the technics of throws and catching of gymnastic subject matters at a stage of special base preparation.

    Directory of Open Access Journals (Sweden)

    Andreeva N.O.

    2011-08-01

    Full Text Available The analysis of performances gymnasts at competitions of a different level shows, that the system of training in rhythmic gymnastics at a stage of special-purpose base preparation requires entering of the corrective amendments which have been directed on perfection of its forms and procedures. One of such innovations may be use in training process of innovative methods of perfection of work on gymnastic subject matters. In article initial theoretical positions and ways of perfection of process of training to throws and catching of a ball and other subject matters as basic means of progress at gymnasts impellent qualities and the skills necessary for achievement of high results in competitive activity are considered.

  2. Perceptual learning and human expertise

    Science.gov (United States)

    Kellman, Philip J.; Garrigan, Patrick

    2009-06-01

    We consider perceptual learning: experience-induced changes in the way perceivers extract information. Often neglected in scientific accounts of learning and in instruction, perceptual learning is a fundamental contributor to human expertise and is crucial in domains where humans show remarkable levels of attainment, such as language, chess, music, and mathematics. In Section 2, we give a brief history and discuss the relation of perceptual learning to other forms of learning. We consider in Section 3 several specific phenomena, illustrating the scope and characteristics of perceptual learning, including both discovery and fluency effects. We describe abstract perceptual learning, in which structural relationships are discovered and recognized in novel instances that do not share constituent elements or basic features. In Section 4, we consider primary concepts that have been used to explain and model perceptual learning, including receptive field change, selection, and relational recoding. In Section 5, we consider the scope of perceptual learning, contrasting recent research, focused on simple sensory discriminations, with earlier work that emphasized extraction of invariance from varied instances in more complex tasks. Contrary to some recent views, we argue that perceptual learning should not be confined to changes in early sensory analyzers. Phenomena at various levels, we suggest, can be unified by models that emphasize discovery and selection of relevant information. In a final section, we consider the potential role of perceptual learning in educational settings. Most instruction emphasizes facts and procedures that can be verbalized, whereas expertise depends heavily on implicit pattern recognition and selective extraction skills acquired through perceptual learning. We consider reasons why perceptual learning has not been systematically addressed in traditional instruction, and we describe recent successful efforts to create a technology of perceptual

  3. Being in a romantic relationship is associated with reduced gray matter density in striatum and increased subjective happiness

    OpenAIRE

    Hiroaki Kawamichi; Sugawara, Sho K.; Hamano, Yuki H.; Kai Makita; Masahiro Matsunaga; Tanabe, Hiroki C.; Yuichi Ogino; Shigeru Saito; Norihiro Sadato

    2016-01-01

    Romantic relationship, a widespread feature of human society, is one of the most influential factors in daily life. Although stimuli related to romantic love or being in a romantic relationship commonly result in enhancement of activation or functional connectivity of the reward system, including the striatum, the structure underlying romantic relationship-related regions remain unclear. Because individual experiences can alter gray matter within the adult human brain, we hypothesized that ro...

  4. Being in a Romantic Relationship Is Associated with Reduced Gray Matter Density in Striatum and Increased Subjective Happiness

    OpenAIRE

    Kawamichi, Hiroaki; Sugawara, Sho K.; Hamano, Yuki H.; Makita, Kai; Matsunaga, Masahiro; Tanabe, Hiroki C.; Ogino, Yuichi; Saito, Shigeru; Sadato, Norihiro

    2016-01-01

    Romantic relationship, a widespread feature of human society, is one of the most influential factors in daily life. Although stimuli related to romantic love or being in a romantic relationship commonly result in enhancement of activation or functional connectivity of the reward system, including the striatum, the structure underlying romantic relationship-related regions remain unclear. Because individual experiences can alter gray matter within the adult human brain, we hypothesized that ro...

  5. Communication Failure in the Process of Accounting Expertise: A Study in the Region of the High Valley of Itajaí– SC

    Directory of Open Access Journals (Sweden)

    Vanderlei dos Santos

    2013-12-01

    Full Text Available The number of processes that demand accounting expertise is growing. In the expertise process occur several steps of communication among judges, lawyers, related parts and expert accountant. In this context between the related parts of the accounting expertise the study aimed to identify the failure of communication existing in the scope, method, information, conclusion and presentation of the expert report. The population is composed of judges (magistrates, lawyers and experts who work in the region of the High Valley of Itajaí and who had judicial processes that demanded accounting expertise. The region of the High Valley of Itajaí is composed of 28 municipalities, divided in 8 districts, which corresponds to a population of10 Judges who act as substitute or holder. There are also the accountants enrolled to act as expert in the Court of Justice that correspond to 72 and all the lawyers registered in the High Valley of Itajaí OAB. Considering the returns from these questionnaires and only the valid, there are 19 expertise accountants, 5 judges and 15 lawyers. A questionnaire with 28 assertions, based on the study of Nogueira (2006 was used to assess perceptions on the failure in the communication expert process. The results showed that the failures are present in all stages of expert opinion. It was concluded that there is a need for improvement in the preparation of the expert report on the following items: a terms used b highlighting the most important points of technical analysis c reasoning and clarity of the conclusions d identifying the point of controversial subject matter expertise and e adequacy of the presentation.

  6. Theoretical Considerations of Interdisciplinary Expertise in Traffic

    Directory of Open Access Journals (Sweden)

    Zdravko Peran

    2012-10-01

    Full Text Available Jnterdisciplinwy traffic expertise is being increasingly appliedin road traffic. It is not possible to determine whether anaccident had been intentionally set up without such expertise.The interdisciplinary expertise is the result of mutual work ofseveral different interdisciplinary experts. The paper analysesthe basic characteristics of interdisciplinary investigation ofset-up traffic accidents. Special attention has been paid to interdisciplinwyexpertise of set-up traffic accidents involving injuredpersons or fatalities.

  7. Musical Expertise and Second Language Learning

    OpenAIRE

    Julie Chobert; Mireille Besson

    2013-01-01

    Increasing evidence suggests that musical expertise influences brain organization and brain functions. Moreover, results at the behavioral and neurophysiological levels reveal that musical expertise positively influences several aspects of speech processing, from auditory perception to speech production. In this review, we focus on the main results of the literature that led to the idea that musical expertise may benefit second language acquisition. We discuss several interpretations that may...

  8. An Expertise Recommender using Web Mining

    Science.gov (United States)

    Joshi, Anupam; Chandrasekaran, Purnima; ShuYang, Michelle; Ramakrishnan, Ramya

    2001-01-01

    This report explored techniques to mine web pages of scientists to extract information regarding their expertise, build expertise chains and referral webs, and semi automatically combine this information with directory information services to create a recommender system that permits query by expertise. The approach included experimenting with existing techniques that have been reported in research literature in recent past , and adapted them as needed. In addition, software tools were developed to capture and use this information.

  9. Musical expertise and second language learning.

    Science.gov (United States)

    Chobert, Julie; Besson, Mireille

    2013-06-06

    Increasing evidence suggests that musical expertise influences brain organization and brain functions. Moreover, results at the behavioral and neurophysiological levels reveal that musical expertise positively influences several aspects of speech processing, from auditory perception to speech production. In this review, we focus on the main results of the literature that led to the idea that musical expertise may benefit second language acquisition. We discuss several interpretations that may account for the influence of musical expertise on speech processing in native and foreign languages, and we propose new directions for future research.

  10. Musical Expertise and Second Language Learning

    Directory of Open Access Journals (Sweden)

    Julie Chobert

    2013-06-01

    Full Text Available Increasing evidence suggests that musical expertise influences brain organization and brain functions. Moreover, results at the behavioral and neurophysiological levels reveal that musical expertise positively influences several aspects of speech processing, from auditory perception to speech production. In this review, we focus on the main results of the literature that led to the idea that musical expertise may benefit second language acquisition. We discuss several interpretations that may account for the influence of musical expertise on speech processing in native and foreign languages, and we propose new directions for future research.

  11. Effect of dimethyl fumarate on gray and white matter pathology in subjects with relapsing multiple sclerosis: a longitudinal study.

    Science.gov (United States)

    Zivadinov, R; Hagemeier, J; Bergsland, N; Tavazzi, E; Weinstock-Guttman, B

    2018-03-01

    Dimethyl fumarate (DMF) is an oral treatment for relapsing-remitting multiple sclerosis (MS) with anti-inflammatory and possible neuroprotective properties. Its effect on white matter and gray matter pathology is still not fully understood. The aim of the study was to characterize the effect of DMF on normal-appearing white matter (NAWM) and thalamic pathology longitudinally. In this observational, longitudinal, 24-month magnetic resonance imaging study, 75 patients with relapsing-remitting MS treated with DMF and 40 age- and sex-matched healthy individuals were enrolled. Regional diffusion tensor imaging metrics and tract-based spatial statistics analyses were used to assess differences between groups. Mean diffusivity, axial diffusivity, radial diffusivity and fractional anisotropy were measured in the thalamus and NAWM. Baseline differences and changes over time were evaluated within and between study groups. At baseline, patients with MS showed significantly increased diffusivity and decreased fractional anisotropy in the thalamus (P < 0.001 for mean diffusivity, axial diffusivity and radial diffusivity) and NAWM (all P < 0.016) compared with healthy individuals. No significant within-group difference was found in diffusion tensor imaging measures over 24 months in either group. Healthy individuals showed a significantly greater rate of increased diffusivity parameters in the thalamus and NAWM compared with patients with MS, over 24 months (P < 0.05). The lack of changes in diffusion tensor imaging metrics in patients with MS over 24 months possibly indicates a neuroprotective role of DMF. These findings provide additional evidence of the beneficial effect of DMF on MS-related pathology. © 2018 EAN.

  12. Designing education for professional expertise development.

    NARCIS (Netherlands)

    Elvira, Q.L.; Imants, J.G.M.; Dankbaar, B.; Segers, M.S.R.; Imants, J.

    2017-01-01

    How to facilitate learning by novices (students) on their road to expertise has attracted the attention of a vast number of researchers in cognitive and educational psychology as well in the field of learning and instruction. Although many studies have investigated the phenomenon of expertise

  13. Conceptualizing and Exemplifying Science Teachers' Assessment Expertise

    Science.gov (United States)

    Lyon, Edward Geaney

    2013-01-01

    Although research in science education has led to new assessment forms and functions, the reality is that little work has been done to unpack and capture what it means for a teacher to develop expertise at assessing science. The purpose of this paper is two-fold. First, I suggest a conceptualization of assessment expertise that is organized around…

  14. Corpus callosum atrophy is associated with mental slowing and executive deficits in subjects with age-related white matter hyperintensities: the LADIS Study

    DEFF Research Database (Denmark)

    Jokinen, Hanna; Ryberg, Charlotte; Kalska, Hely

    2007-01-01

    , attention and executive functions in subjects with age-related white matter hyperintensities (WMH). METHODS: In the Leukoaraiosis and Disability Study, 567 subjects with age-related WMH were examined with a detailed neuropsychological assessment and quantitative magnetic resonance imaging. The relationships...... processing--namely, trail making A and Stroop test parts I and II. Anterior, but not posterior, corpus callosum atrophy was associated with deficits of attention and executive functions as reflected by the symbol digit modalities and digit cancellation tests, as well as by the subtraction scores in the trail...... is related to the frontal-lobe-mediated executive functions and attention, whereas overall corpus callosum atrophy is associated with the slowing of processing speed. Udgivelsesdato: 2007-May...

  15. It matters how old you feel: Antecedents and performance consequences of average relative subjective age in organizations.

    Science.gov (United States)

    Kunze, Florian; Raes, Anneloes M L; Bruch, Heike

    2015-09-01

    This article extends the conceptual knowledge of average relative subjective age in organizations by exploring organizational-level antecedents and consequences of employees, on average, feeling younger than their chronological age. We draw from the theories of selection-optimization-compensation and socioemotional selectivity to build a theoretical framework for relative subjective age in organizations. We hypothesize that companies in which employees, on average, perceive themselves to be younger than they actually are have a higher average individual goal accomplishment and, in turn, experience higher company performance. We further hypothesize that employees' average experience of high work-related meaning relates to a lower subjective age in organizations. In addition, we assess the role of environmental dynamism and age-inclusive human resource management as moderators in this theoretical model. Through empirically testing this model in a multisource dataset, including 107 companies with 15,164 participating employees, we received support for the hypothesized relationships. Our results contribute to current debates in the scientific literature on age and have important practical implications in light of the demographic changes faced by many companies. This research indicates to both researchers and practitioners that it is not employees' chronological age but their subjective age, a factor that can be influenced, which drives organizational performance outcomes. (c) 2015 APA, all rights reserved).

  16. The expertise reversal effect: cognitive load and motivational explanations.

    Science.gov (United States)

    Rey, Günter Daniel; Buchwald, Florian

    2011-03-01

    The expertise reversal effect occurs when a learner's expertise moderates design principles such as the redundancy principle (i.e., redundant information should be excluded rather than included) derived from the cognitive load theory. Although this effect is supported by numerous experiments, indicating an overall large effect size, a variety of explanations have been proposed. The present experiment tested a cognitive load and a motivational explanation with 104 students, who reported a lack of experience in the presented instructional contents. They spent about 30 min with the instructional material to learn fundamental concepts about the gradient descent (a mathematical optimization algorithm), and with a retention and transfer test used as dependent measures. Each learner was randomly assigned to one cell of a 2 (either novices or experts introduced to through the instructional design presented previously) × 2 (either with or without additional text explaining the animations) between-subjects factorial design. The expertise reversal effect concerning the redundancy principle was replicated. Novices receiving additional text scored higher on retention and transfer than did novices without additional text, while this result was reversed for experts. Results suggest that this effect can be explained by the learner's cognitive load differences rather than overall motivation differences. Furthermore, a partial overlap was found between the motivational subdimension, "probability of success," and a cognitive load measure. On the practical side, instructional designers should consider the learner's level of expertise and their cognitive load when applying design principles. Further implications for adaptive learning environments are discussed.

  17. Single-subject gray matter graph properties and their relationship with cognitive impairment in early- and late-onset Alzheimer's disease.

    Science.gov (United States)

    Tijms, Betty M; Yeung, Hiu M; Sikkes, Sietske A M; Möller, Christiane; Smits, Lieke L; Stam, Cornelis J; Scheltens, Philip; van der Flier, Wiesje M; Barkhof, Frederik

    2014-06-01

    Abstract We investigated the relationships between gray matter graph properties and cognitive impairment in a sample of 215 patients with Alzheimer's disease (AD) and also whether age of disease onset modifies such relationships. We expected that more severe cognitive impairment in AD would be related to more random graph topologies. Single-subject gray matter graphs were constructed from T1-weighted magnetic resonance imaging scans. The following global and local graph properties were calculated: betweenness centrality, normalized clustering coefficient γ, and normalized path length λ. Local clustering, path length, and betweenness centrality measures were determined for 90 anatomically defined areas. Regression models with as interaction term age of onset (i.e., early onset when patients were ≤65 years old and late onset when they were >65 years old at the time of diagnosis)×graph property were used to assess the relationships between cognitive functioning in five domains (memory, language, visuospatial, attention, and executive). Worse cognitive impairment was associated with more random graphs, as indicated by low γ, λ, and betweenness centrality values. Three interaction effects for age of onset×global graph property were found: Low γ and λ values more strongly related to memory impairment in early-onset patients; low beta values were significantly related to impaired visuospatial functioning in late-onset patients. For the local graph properties, language impairment showed the strongest relationship with decreased clustering coefficient in the left superior temporal gyrus across the entire sample. Our study shows that single-subject gray matter graph properties are associated with individual differences in cognitive impairment.

  18. Computer-Based Instruction: Effect of Cognitive Style, Instructional Format, and Subject-Matter Content on Learning

    Science.gov (United States)

    1990-04-01

    for this study. The test consists of 10 pairs of words (see Appendix B), ranked from easy to hard, selected from the Weschler Paired Associate Learning...facts and opinions on a current affairs topic. The decision-making task involved a maze problem. Subjects were tested immediately after training, 2...Screening Measures for Cognitive Style ........................ 5 The 4-Mat Test ......................................... 5 The Lateral Preference Test

  19. Investigation of Psychophysiological and Subjective Effects of Long Working Hours – Do Age and Hearing Impairment Matter?

    Directory of Open Access Journals (Sweden)

    Verena Wagner-Hartl

    2018-01-01

    Full Text Available Following current prognosis, demographic development raises expectations of an aging of the working population. Therefore, keeping employees healthy and strengthening their ability to work, becomes more and more important. When employees become older, dealing with age-related impairments of sensory functions, such as hearing impairment, is a central issue. Recent evidence suggests that negative effects that are associated with reduced hearing can have a strong impact at work. Especially under exhausting working situations such as working overtime hours, age and hearing impairment might influence employees’ well-being. Until now, neither the problem of aged workers and long working hours, nor the problem of hearing impairment and prolonged working time has been addressed explicitly. Therefore, a laboratory study was examined to answer the research question: Do age and hearing impairment have an impact on psychophysiological and subjective effects of long working hours. In total, 51 white-collar workers, aged between 24 and 63 years, participated in the laboratory study. The results show no significant effects for age and hearing impairment on the intensity of subjective consequences (perceived recovery and fatigue, subjective emotional well-being and physical symptoms of long working hours. However, the psychophysiological response (the saliva cortisol level to long working hours differs significantly between hearing impaired and normal hearing employees. Interestingly, the results suggest that from a psychophysiological point of view long working hours were more demanding for normal hearing employees.

  20. The appraisal rationalisation of real estate expertise

    Directory of Open Access Journals (Sweden)

    Marina Ciuna

    2013-12-01

    Full Text Available The Italian appraisal practice is characterized by valuations developed in subjective opinions formulated by the valuers, according to the experience and the competence rather than on the survey of the market data of comparable properties. This practice makes up for the lack of information on the real estate market and to the consequent absence of systematic collections of market data. This tradition is in the cadastral appraisal for the rural (1886 and urban properties (1939. The assessed income is appraised for a representative property and wide to all the other properties with arbitrary scores (pure number. The assessed value is derived from the income with fixed multipliers. The reform of the cadastral appraisals (2013 provides the employment of predetermined statistic functions rather than the automated valuation models applied in the mass appraisal. There are therefore ample spaces to rationalize the Italian valuations. For the market appraisal the process of rationalization is based on the comparison between the expertise and the market comparison approach. For the cadastral appraisal the process of rationalization is based on the statistic application to the fixed functions with the survey of a sample of market prices and the ratios study according to the valuation standards.

  1. The Importance of Domain-Specific Expertise in Creativity

    Science.gov (United States)

    Baer, John

    2015-01-01

    Although creativity and expertise are related, they are nonetheless very different things. Expertise does not usually require creativity, but creativity generally does require a certain level of expertise. There are similarities in the relationships of both expertise and creativity to domains, however. Research has shown that just as expertise in…

  2. Expertise and the evolution of consciousness.

    Science.gov (United States)

    Rossano, Matt J

    2003-10-01

    This paper argues that expertise can be used as an indicator of consciousness in humans and other animals. The argument is based on the following observations: (1) expertise and skill acquisition require deliberate practice; and (2) the characteristics of deliberate practice such as performance evaluation against a more proficient model, retention of voluntary control over actions, self-monitoring, goal-setting, error-detection and correction, and the construction of hierarchically organized retrieval structures are outside of the currently understood bounds of unconscious processing. Thus, to the extent that evidence of expertise exists in an organism, evidence of conscious experience is also present. Two important implications arise from this conclusion: (1) evidence of expertise can be used as the basis for cross-species comparisons of consciousness; and (2) the evolution of human consciousness can be assessed using fossil evidence of skilled behavior as a measure of consciousness.

  3. Visual expertise development among clinical pathologists

    NARCIS (Netherlands)

    Jaarsma, Thomas; Jarodzka, Halszka; Nap, Marius; Van Merriënboer, Jeroen; Boshuizen, Els

    2013-01-01

    Jaarsma, T., Jarodzka, H., Nap, M., Van Merriënboer, J. J. G., & Boshuizen, H. P. A. (2012, 23 August). Visual expertise development among clinical pathologists. Paper presented at the EARLI Special Interest Group 14, Antwerp, Belgium.

  4. How to attain expertise in clinical communication?

    NARCIS (Netherlands)

    Wouda, Jan C.; van de Wiel, Harry B. M.

    2013-01-01

    Several factors complicate the attainment of expertise in clinical communication. Medical curricula and postgraduate training insufficiently provide the required learning conditions of deliberate practice to overcome these obstacles. In this paper we provide recommendations for learning objectives

  5. Visual expertise: characteristics and instructional attempts

    NARCIS (Netherlands)

    Jarodzka, Halszka

    2012-01-01

    Jarodzka, H. (2012, 27 April). Visual expertise: characteristics and instructional attempts. Presentation during the ‘Symposium 4C-ID: Hoe implementer je de blauwdruk?’, Studiecentrum Open Universiteit, Utrecht, The Netherlands.

  6. Does visual expertise improve visual recognition memory?

    OpenAIRE

    Evans, Karla K.; Cohen, Michael A.; Tambouret, Rosemary; Horowitz, Todd; Kreindel, Erica; Wolfe, Jeremy M.

    2011-01-01

    In general, humans have impressive recognition memory for previously viewed pictures. Many people spend years becoming experts in highly specialized image sets. For example, cytologists are experts at searching micrographs filled with potentially cancerous cells and radiologists are expert at searching mammograms for indications of cancer. Do these experts develop robust visual long-term memory for their domain of expertise? If so, is this expertise specific to the trained image class, or do ...

  7. Predictive Utility of Marketed Volumetric Software Tools in Subjects at Risk for Alzheimer Disease: Do Regions Outside the Hippocampus Matter?

    Science.gov (United States)

    Tanpitukpongse, T P; Mazurowski, M A; Ikhena, J; Petrella, J R

    2017-03-01

    Alzheimer disease is a prevalent neurodegenerative disease. Computer assessment of brain atrophy patterns can help predict conversion to Alzheimer disease. Our aim was to assess the prognostic efficacy of individual-versus-combined regional volumetrics in 2 commercially available brain volumetric software packages for predicting conversion of patients with mild cognitive impairment to Alzheimer disease. Data were obtained through the Alzheimer's Disease Neuroimaging Initiative. One hundred ninety-two subjects (mean age, 74.8 years; 39% female) diagnosed with mild cognitive impairment at baseline were studied. All had T1-weighted MR imaging sequences at baseline and 3-year clinical follow-up. Analysis was performed with NeuroQuant and Neuroreader. Receiver operating characteristic curves assessing the prognostic efficacy of each software package were generated by using a univariable approach using individual regional brain volumes and 2 multivariable approaches (multiple regression and random forest), combining multiple volumes. On univariable analysis of 11 NeuroQuant and 11 Neuroreader regional volumes, hippocampal volume had the highest area under the curve for both software packages (0.69, NeuroQuant; 0.68, Neuroreader) and was not significantly different ( P > .05) between packages. Multivariable analysis did not increase the area under the curve for either package (0.63, logistic regression; 0.60, random forest NeuroQuant; 0.65, logistic regression; 0.62, random forest Neuroreader). Of the multiple regional volume measures available in FDA-cleared brain volumetric software packages, hippocampal volume remains the best single predictor of conversion of mild cognitive impairment to Alzheimer disease at 3-year follow-up. Combining volumetrics did not add additional prognostic efficacy. Therefore, future prognostic studies in mild cognitive impairment, combining such tools with demographic and other biomarker measures, are justified in using hippocampal volume as

  8. E-Commerce Audit Judgment Expertise: Does Expertise in System Change Management and Information Technology Auditing Mediate E-Commerce Audit Judgment Expertise?

    Directory of Open Access Journals (Sweden)

    Jagdish PATHAK

    2010-01-01

    Full Text Available A global survey of 203 E-commerce auditors was conducted to investigate the perceptions about the potential determinants of expertise in E-commerce audits. We hypothesize and find evidence indicating that information technology and communication expertise are positively related to expertise in E-commerce audit judgment. We also find that system change management expertise and information technology audit expertise mediate this relationship.

  9. THE BLENDED LEARNING ACCOMPLISHMENT OF COMPUTER AND NETWORK ENGINEERING EXPERTISE PROGRAM IN VOCATIONAL SCHOOLS

    OpenAIRE

    Aries Alfian Prasetyo; Setiadi Cahyono Putro; I Made Wirawan

    2016-01-01

    This study aims to (1) describe supporting and inhibiting factors in blended learning implementation for the students of computer and network engineering expertise program and (2) describe the accomplishment level of the implementation. This study is designed as a descriptive study with quantitative approach. The research object is the blended learning implementation in computer and network engineering expertise program in SMK N 1 Baureno Bojonegoro. The research subjects consist of teachers,...

  10. Factors defining expertise in screening colonoscopy.

    Science.gov (United States)

    Patel, Kinesh; Pinto, Anna; Faiz, Omar; Rutter, Matt; Thomas-Gibson, Siwan

    2017-09-01

     There is very little literature defining characteristics of expert endoscopists. It is hypothesised that previously undetermined human factors may correlate with high performance in screening colonoscopists. The aim of this study was to determine factors contributing towards expertise in screening colonoscopy.  A focus group was used to hypothesise skills considered to be relevant to high performance in colonoscopy. The skills were then ranked in order of importance by an independent group of screening colonoscopists for both diagnostic and therapeutic colonoscopy. Twenty screening colonoscopists subsequently participated in individual semi-structured interviews to explore participants' views of expertise and the factors contributing to it. Data extracted from the interview transcripts were used to identify the thematic framework associated with expertise. The 5 initial highest-ranked themes were low complication rates, high adenoma detection rates, interpersonal skills with staff, communication skills, and manner with patients. Interviewees considered technical skills (20/20), previous experience of colonoscopy (19/20), judgment/decision-making (18/20), communication (18/20), teamwork (15/20), resources (11/20) and leadership (8/20) to be the most important themes related to expertise.  Both technical and non-technical abilities are considered essential components of expertise by experienced colonoscopists. Further research into targeted interventions to improve the rate of acquisition of these skills in training endoscopists may be useful in improving performance.

  11. The politics of expertise in participatory forestry

    DEFF Research Database (Denmark)

    Green, Kathryn E.; Lund, Jens Friis

    2015-01-01

    In this paper, we show how the framing of a community-based forest management (CBFM) intervention implies the professionalization of forest management and the privileging of certain forms of knowledge in a village in Tanzania. We describe how the framing of CBFM in technical and procedural terms......, and the subsequent construction of expertise by implementers through training, combine with existing signifiers of social stratification to shape struggles over participation and access to benefits from forest use and management. We also describe how the perceived necessity of expertise is not questioned by village...... residents, only the exclusive and antidemocratic consequences of the way it comes to be reproduced. Based on our study, we call for a careful reconsideration of the framing of participatory forestry approaches as professionalization to strike a balance between the need for expertise and the costs...

  12. Defining Primary Geography from Teachers' Expertise: What Chilean Teachers Mean by Geography

    Science.gov (United States)

    Salinas-Silva, Victor; Perez-Gallardo, Patricio; Arenas-Martija, Andoni

    2015-01-01

    This article examines teachers' subject expertise in a context where geography could be considered a neglected school subject. Using an empirical approach to the problem, the article aims to provide a view on the dynamics of teaching primary geography in Chile, through considering teachers' narratives on curriculum making and their associated…

  13. Dark matter in galaxies

    OpenAIRE

    Zasov, A. V.; Saburova, A. S.; Khoperskov, A. V.; Khoperskov, S. A.

    2017-01-01

    Dark matter in galaxies, its abundance, and its distribution remain a subject of long-standing discussion, especially in view of the fact that neither dark matter particles nor dark matter bodies have yet been found. Experts' opinions range from a very large number of completely dark galaxies exist to nonbaryonic dark matter does not exist at all in any significant amounts. We discuss astronomical evidence for the existence of dark matter and its connection with visible matter and examine att...

  14. Train, teach; taught? How the content of specific science subject matter knowledge sessions impacts on trainee teachers’ classroom practice and children’s learning

    Directory of Open Access Journals (Sweden)

    Vanessa Kind

    2008-11-01

    Full Text Available The impact science sessions for trainee science teachers have on 11-14 year olds’ learning of science was assessed using questionnaires and a “Video-Interview (trainee –Interview (pupils” (V-I-I technique devised for this study. V-I-I involved: video-recording trainee-taught lessons; and two interviews – with a pupil group to probe learning occurring in the lesson and with the trainee.Eighty UK-based trainees taking a one-year postgraduate teacher education course completed the questionnaire probing perceptions about university- and school-based training sessions designed to develop science subject matter knowledge (SMK and pedagogical content knowledge (PCK. Six trainees participated in V-I-I.Most trainees saw all sessions as SMK-based, regardless of teacher educators’ intended purposes. Lesson videos revealed ”describing” activities, task completion and good behaviour as main focii. Explanation of key science ideas and use of materials and /ideas from training sessions were largely absent. Trainee interviews revealed contrasts: most perceived a lesson as “successful” when children completed tasks quietly. Other trainees realised their understanding impacted on pupils’ learning science concepts. Pupil interviews showed positive attitudes towards science and learning difficult ideas, but little specific learning of topics taught.

  15. A tale of three blind men on the proper subject matter of clinical science and practice: commentary on Plaud's behaviorism vs. Ilardi and Feldman's cognitive neuroscience.

    Science.gov (United States)

    Forsyth, J P; Kelly, M M

    2001-09-01

    Plaud (J Clin Psychol 57, 1089-1102, 1109-1111, 1119-1120) and Ilardi and Feldman (J Clin Psychol 57, 1067-1088, 1103-1107, 1113-1117, 1121-1124) argue for two very different approaches to clinical science and practice (i.e., behavior analysis and cognitive neuroscience, respectively). We comment on the assets and liabilities of both perspectives as presented and attempt to achieve some semblance of balance between the three protagonists embroiled in this current debate. The vision of clinical science we articulate is more ecumenical and evolutionary, rather than paradigmatic and revolutionary. As we see it, the problem clinical psychology faces is much larger than the authors let on; namely, how best to make clinical science meaningful and relevant to practitioners, consumers, the general public, and the behavioral health-care community. Clinical psychology's immediate internal problem is not pluralism with regard to subject matter, worldview, methodology, or school of thought, but pluralism in clinical psychologists' adherence to a scientific epistemology as the only legitimate form of clinical psychology. On this latter point, we still have a very long way to go. Copyright 2001 John Wiley & Sons, Inc.

  16. Educational Expertise, Advocacy, and Media Influence

    Science.gov (United States)

    Malin, Joel R.; Lubienski, Christopher

    2015-01-01

    The efforts of many advocacy organizations to advance their preferred policies despite conflicting evidence of the effectiveness of these policies raise questions about factors that shape successful policy promotion. While many may like to think that expertise on an issue in question is an essential prerequisite for influence in public policy…

  17. On the assessment of expertise profiles

    NARCIS (Netherlands)

    Berendsen, R.; de Rijke, M.; Balog, K.; Bogers, T.; van den Bosch, A.

    2013-01-01

    Expertise retrieval has attracted significant interest in the field of information retrieval. Expert finding has been studied extensively, with less attention going to the complementary task of expert profiling, that is, automatically identifying topics about which a person is knowledgeable. We

  18. Psychological Factors Associated with Paranursing Expertise.

    Science.gov (United States)

    Brammer, Robert; Haller, Katherine

    The psychological factors associated with paranursing expertise were examined in a study of 135 certified nursing assistants (CNAs) at a geriatric nursing facility in Amarillo, Texas. Data were collected through a project-developed screening tool called the Geriatric Employee Screening Tool (GEST), which is a true-false instrument patterned after…

  19. Children Monitor Individuals' Expertise for Word Learning

    Science.gov (United States)

    Sobel, David M.; Corriveau, Kathleen H.

    2010-01-01

    Two experiments examined preschoolers' ability to learn novel words using others' expertise about objects' nonobvious properties. In Experiment 1, 4-year-olds (n = 24) endorsed individuals' labels for objects based on their differing causal knowledge about those objects. Experiment 2 examined the robustness of this inference and its development.…

  20. Gender Differences in Science: An Expertise Perspective

    Science.gov (United States)

    Taasoobshirazi, Gita; Carr, Martha

    2008-01-01

    The purpose of this paper is to propose a new approach to research on gender differences in science that uses the work on expertise in science as a framework for understanding gender differences. Because gender differences in achievement and participation in the sciences are largest in physics, the focus of this review is on physics. The nature of…

  1. Universities and the Public Recognition of Expertise

    Science.gov (United States)

    Arnoldi, Jakob

    2007-01-01

    This article argues that new sites of knowledge production, increasingly cultivated by the mass media, are threatening the role of academics and universities as traditional sources of expertise. Drawing upon the conceptual categories of Pierre Bourdieu, the article suggests an alternative way of understanding this "crisis of legitimacy."

  2. Influence of pharmacists expertise on physicians prescription ...

    African Journals Online (AJOL)

    Results: The main factors identified were pharmacist expertise, pharmacist – physician collaboration, and trust ... learner, and teacher” [1]. Over the years ..... The impact of the cooperation with pharmacists and impact of visits from pharmaceutical industry representatives. Family. Practice 2005; 22(6): 624–630. 13. Delirrad ...

  3. Processes mediating expertise in air traffic control

    NARCIS (Netherlands)

    Van Meeuwen, Ludo; Jarodzka, Halszka; Brand-Gruwel, Saskia; Van Merriënboer, Jeroen; De Bock, Jeano; Kirschner, Paul A.

    2010-01-01

    Van Meeuwen, L., Jarodzka, H., Brand-Gruwel, S., Van Merriënboer, J. J. G., De Bock, J. J. P. R., & Kirschner, P. A. (2010, August). Processes mediating expertise in air traffic control. Meeting of the EARLI SIG6/7 Instructional Design and Learning and Instruction with Computers, Ulm, Germany.

  4. Introduction: Recent advances in expertise research.

    NARCIS (Netherlands)

    Rikers, Remy; Paas, Fred

    2007-01-01

    During the 55th meeting of the American Educational Research Association (AERA, 2004) in San Diego, a symposium was organized on Recent Advances in Expertise Research. Most papers in this special issue of Applied Cognitive Psychology were presented in this symposium. The aim of this special issue is

  5. Critical Dispositions: Evidence and Expertise in Education

    Science.gov (United States)

    Dimitriadis, Greg

    2011-01-01

    Set against the current proliferation of global "difference" and economic realignment, "Critical Dispositions" explores the notions of "evidence" and "expertise" in times of material scarcity. Both have come to the forefront of national and international debate in education as "evidence" and "evidence-based" research and pedagogical practices…

  6. Levels of expertise in design education

    NARCIS (Netherlands)

    Dorst, Kees; Reymen, Isabelle; Lloyd, P.; Roozenburg, N.; McMahon, C.; Brodhurst, L.

    2004-01-01

    Design ability and differences between novice and expert designers have been quite extensively studied in the field of design methodology. For example, design expertise got much attention in the latest Design Thinking Research Symposium held in Australia. Little attention, however, is paid to the

  7. Effects of expertise on football betting

    Science.gov (United States)

    2012-01-01

    Background Football (soccer) is one of the most popular sports in the world, including Europe. It is associated with important betting activities. A common belief, widely spread among those who participate in gambling activities, is that knowledge and expertise on football lead to better prediction skills for match outcomes. If unfounded, however, this belief should be considered as a form of “illusion of control.” The aim of this study was to examine whether football experts are better than nonexperts at predicting football match scores. Methods Two hundred and fifty-eight persons took part in the study: 21.3% as football experts, 54.3% as laypersons (non-initiated to football), and 24.4% as football amateurs. They predicted the scores of the first 10 matches of the 2008 UEFA European Football Championship. Logistic regressions were carried out to assess the link between the accuracy of the forecasted scores and the expertise of the participants (expert, amateur, layperson), controlling for age and gender. Results The variables assessed did not predict the accuracy of scoring prognosis (R2 ranged from 1% to 6%). Conclusions Expertise, age, and gender did not appear to have an impact on the accuracy of the football match prognoses. Therefore, the belief that football expertise improves betting skills is no more than a cognitive distortion called the “illusion of control.” Gamblers may benefit from psychological interventions that target the illusion of control related to their believed links between betting skills and football expertise. Public health policies may need to consider the phenomenon in order to prevent problem gambling related to football betting. PMID:22578101

  8. Effects of expertise on football betting

    Directory of Open Access Journals (Sweden)

    Khazaal Yasser

    2012-05-01

    Full Text Available Abstract Background Football (soccer is one of the most popular sports in the world, including Europe. It is associated with important betting activities. A common belief, widely spread among those who participate in gambling activities, is that knowledge and expertise on football lead to better prediction skills for match outcomes. If unfounded, however, this belief should be considered as a form of “illusion of control.” The aim of this study was to examine whether football experts are better than nonexperts at predicting football match scores. Methods Two hundred and fifty-eight persons took part in the study: 21.3% as football experts, 54.3% as laypersons (non-initiated to football, and 24.4% as football amateurs. They predicted the scores of the first 10 matches of the 2008 UEFA European Football Championship. Logistic regressions were carried out to assess the link between the accuracy of the forecasted scores and the expertise of the participants (expert, amateur, layperson, controlling for age and gender. Results The variables assessed did not predict the accuracy of scoring prognosis (R2 ranged from 1% to 6%. Conclusions Expertise, age, and gender did not appear to have an impact on the accuracy of the football match prognoses. Therefore, the belief that football expertise improves betting skills is no more than a cognitive distortion called the “illusion of control.” Gamblers may benefit from psychological interventions that target the illusion of control related to their believed links between betting skills and football expertise. Public health policies may need to consider the phenomenon in order to prevent problem gambling related to football betting.

  9. Effects of expertise on football betting.

    Science.gov (United States)

    Khazaal, Yasser; Chatton, Anne; Billieux, Joël; Bizzini, Lucio; Monney, Grégoire; Fresard, Emmanuelle; Thorens, Gabriel; Bondolfi, Guido; El-Guebaly, Nady; Zullino, Daniele; Khan, Riaz

    2012-05-11

    Football (soccer) is one of the most popular sports in the world, including Europe. It is associated with important betting activities. A common belief, widely spread among those who participate in gambling activities, is that knowledge and expertise on football lead to better prediction skills for match outcomes. If unfounded, however, this belief should be considered as a form of "illusion of control." The aim of this study was to examine whether football experts are better than nonexperts at predicting football match scores. Two hundred and fifty-eight persons took part in the study: 21.3% as football experts, 54.3% as laypersons (non-initiated to football), and 24.4% as football amateurs. They predicted the scores of the first 10 matches of the 2008 UEFA European Football Championship. Logistic regressions were carried out to assess the link between the accuracy of the forecasted scores and the expertise of the participants (expert, amateur, layperson), controlling for age and gender. The variables assessed did not predict the accuracy of scoring prognosis (R2 ranged from 1% to 6%). Expertise, age, and gender did not appear to have an impact on the accuracy of the football match prognoses. Therefore, the belief that football expertise improves betting skills is no more than a cognitive distortion called the "illusion of control." Gamblers may benefit from psychological interventions that target the illusion of control related to their believed links between betting skills and football expertise. Public health policies may need to consider the phenomenon in order to prevent problem gambling related to football betting.

  10. The committee of scientific expertise coordination; Le comite de coordination d'expertise scientifique

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    Placed under the MIES control, the Committee of scientific expertise coordination defines the needs, the contain and the planing of expertises realized in function of Climate national and international decisions and negotiations calendars. The Committee verifies the different expertises and offers the administrations, scientific tools and techniques useful for the negotiations. It can also define long-dated research needs which require the scientific community mobilization. This paper provides some document of the Committee: objectives, operating and priorities of the Committee, scenarios ''Factor 4'' and ''crack technology'', perceptions and practices, developing countries (China, India...), Euromed. (A.L.B.)

  11. Classification of Recommender Expertise in the Wikipedia Recommender System

    DEFF Research Database (Denmark)

    Jensen, Christian D.; Pilkauskas, Povilas; Lefévre, Thomas

    2011-01-01

    to the quality of articles. The Wikipedia Recommender System (WRS) was developed to help users determine the credibility of articles based on feedback from other Wikipedia users. The WRS implements a collaborative filtering system with trust metrics, i.e., it provides a rating of articles which emphasizes......The Wikipedia is a web-based encyclopedia, written and edited collaboratively by Internet users. The Wikipedia has an extremely open editorial policy that allows anybody, to create or modify articles. This has promoted a broad and detailed coverage of subjects, but also introduced problems relating...... feedback from recommenders that the user has agreed with in the past. This exposes the problem that most recommenders are not equally competent in all subject areas. The first WRS prototype did not include an evaluation of the areas of expertise of recommenders, so the trust metric used in the article...

  12. Classification of Recommender Expertise in the Wikipedia Recommender System

    DEFF Research Database (Denmark)

    Jensen, Christian D.; Pilkauskas, Povilas; Lefevre, Thomas

    2011-01-01

    to the quality of articles. The Wikipedia Recommender System (WRS) was developed to help users determine the credibility of articles based on feedback from other Wikipedia users. The WRS implements a collaborative filtering system with trust metrics, i.e., it provides a rating of articles "which emphasizes......The Wikipedia is a web-based encyclopedia, written and edited collaboratively by Internet users. The Wikipedia has an extremely open editorial policy that allows anybody, to create or modify articles. This has promoted a broad and detailed coverage of subjects, but also introduced problems relating...... feedback from recommenders that the user has agreed with in the past. This exposes the problem that most recommenders are not equally competent in all subject areas. The first WRS prototype did not include an evaluation of the areas of expertise of recommenders, so the trust metric used in the article...

  13. Expertise and processing distorted structure in chess.

    Science.gov (United States)

    Bartlett, James C; Boggan, Amy L; Krawczyk, Daniel C

    2013-01-01

    A classic finding in research on human expertise and knowledge is that of enhanced memory for stimuli in a domain of expertise as compared to either stimuli outside that domain, or within-domain stimuli that have been degraded or distorted in some way. However, we do not understand how experts process degradation or distortion of stimuli within the expert domain (e.g., a face with the eyes, nose, and mouth in the wrong positions, or a chessboard with pieces placed randomly). Focusing on the domain of chess, we present new fMRI evidence that when experts view such distorted/within-domain stimuli, they engage an active search for structure-a kind of exploratory chunking-that involves a component of a prefrontal-parietal network linked to consciousness, attention and working memory.

  14. Does visual expertise improve visual recognition memory?

    Science.gov (United States)

    Evans, Karla K; Cohen, Michael A; Tambouret, Rosemary; Horowitz, Todd; Kreindel, Erica; Wolfe, Jeremy M

    2011-01-01

    In general, humans have impressive recognition memory for previously viewed pictures. Many people spend years becoming experts in highly specialized image sets. For example, cytologists are experts at searching micrographs filled with potentially cancerous cells and radiologists are expert at searching mammograms for indications of cancer. Do these experts develop robust visual long-term memory for their domain of expertise? If so, is this expertise specific to the trained image class, or do such experts possess generally superior visual memory? We tested recognition memory of cytologists, radiologists, and controls with no medical experience for three visual stimulus classes: isolated objects, scenes, and mammograms or micrographs. Experts were better than control observers at recognizing images from their domain, but their memory for those images was not particularly good (D' ~ 1.0) and was much worse than memory for objects or scenes (D' > 2.0). Furthermore, experts were not better at recognizing scenes or isolated objects than control observers.

  15. Expertise and Processing Distorted Structure in Chess

    Directory of Open Access Journals (Sweden)

    James eBartlett

    2013-12-01

    Full Text Available A classic finding in research on human expertise and knowledge is that of enhanced memory for stimuli in a domain of expertise as compared to either stimuli outside that domain, or within-domain stimuli that have been or degraded or distorted in some way. However, we do not understand how the expert brain processes within-domain stimuli that have been distorted enough to be perceived as impossible or wrong, and yet still are perceived as within the domain (e.g., a face with the eyes, nose and mouth in the wrong positions, or a chessboard with pieces placed randomly on the board. Focusing on the domain of chess, we present new fMRI evidence that when experts view such distorted/within-domain stimuli, they engage an active search for structure – a kind of exploratory chunking – that involves a component of a prefrontal-parietal network linked to consciousness, attention and working memory.

  16. Portuguese Language Expertise Center for the OAD

    Science.gov (United States)

    Doran, Rosa; Canas, Lina; Anjos, Sara; Heenatigala, Thilina; Retrê, João; Afonso, José; Alves, Ana

    2016-10-01

    Supporting the use of astronomy as a tool for development in specific regions and languages, the International Astronomical Union's (IAU) Office of Astronomy for Development (OAD) has established a Portuguese `Language Expertise Centre for the OAD' (PLOAD), hosted at Núcleo Interactivo de Astronomia (NUCLIO), in collaboration with the Institute of Astrophysics and Space Sciences (IA) in Portugal. The centre is one of the new coordinating offices announced at the IAU General Assembly in Honolulu, Hawaii on 13 August 2015.

  17. Human Expertise Helps Computer Classify Images

    Science.gov (United States)

    Rorvig, Mark E.

    1991-01-01

    Two-domain method of computational classification of images requires less computation than other methods for computational recognition, matching, or classification of images or patterns. Does not require explicit computational matching of features, and incorporates human expertise without requiring translation of mental processes of classification into language comprehensible to computer. Conceived to "train" computer to analyze photomicrographs of microscope-slide specimens of leucocytes from human peripheral blood to distinguish between specimens from healthy and specimens from traumatized patients.

  18. Competencies of Thai expertise teacher and PCK

    Science.gov (United States)

    Chantaranima, Tarntip; Yuenyong, Chokchai

    2018-01-01

    Pedagogical Content Knowledge (PCK) was accepted by worldwide Educators that it is a ubiquitous word in the preparation of teachers in the past decade. This study uses Pedagogical Content Knowledge (PCK) framework as a lens for classifying the guidelines and expectations for categorizing expertise teachers. Therefore, the paper tries to clarify the relationship between competencies of Thai expertise teacher and PCK elements. To promote skillful Thai teachers by offering them academic titles, the Office of the Teacher Civil Service and Education Personal Commission were developed to provide guidelines and expectations for categorizing expertise teachers (OTEPC, 2009). This article focuses on the guideline criteria which are three areas of consideration. The first area of consideration is teacher's disciplines including virtues and professional conducts. The second area of consideration is teacher's knowledge and teaching ability. The last area of consider is teacher's performance. It seemed that the OTEPC guideline pay too much attention on the first area. However, there are some issues of PCK appearing on the OTEPC teacher competency. The paper will discuss some suggestions of fill up PCK in the OTEPC guideline. The paper may have implication for Thailand teacher education.

  19. A prospective randomized trial of content expertise versus process expertise in small group teaching.

    Science.gov (United States)

    Peets, Adam D; Cooke, Lara; Wright, Bruce; Coderre, Sylvain; McLaughlin, Kevin

    2010-10-14

    Effective teaching requires an understanding of both what (content knowledge) and how (process knowledge) to teach. While previous studies involving medical students have compared preceptors with greater or lesser content knowledge, it is unclear whether process expertise can compensate for deficient content expertise. Therefore, the objective of our study was to compare the effect of preceptors with process expertise to those with content expertise on medical students' learning outcomes in a structured small group environment. One hundred and fifty-one first year medical students were randomized to 11 groups for the small group component of the Cardiovascular-Respiratory course at the University of Calgary. Each group was then block randomized to one of three streams for the entire course: tutoring exclusively by physicians with content expertise (n = 5), tutoring exclusively by physicians with process expertise (n = 3), and tutoring by content experts for 11 sessions and process experts for 10 sessions (n = 3). After each of the 21 small group sessions, students evaluated their preceptors' teaching with a standardized instrument. Students' knowledge acquisition was assessed by an end-of-course multiple choice (EOC-MCQ) examination. Students rated the process experts significantly higher on each of the instrument's 15 items, including the overall rating. Students' mean score (±SD) on the EOC-MCQ exam was 76.1% (8.1) for groups taught by content experts, 78.2% (7.8) for the combination group and 79.5% (9.2) for process expert groups (p = 0.11). By linear regression student performance was higher if they had been taught by process experts (regression coefficient 2.7 [0.1, 5.4], p teach first year medical students within a structured small group environment; preceptors with process expertise result in at least equivalent, if not superior, student outcomes in this setting.

  20. Conflict Resolution and Public Participation Center of Expertise

    Data.gov (United States)

    Federal Laboratory Consortium — On October 17, 2008, the Conflict Resolution and Public Participation Center (CPCX) was named a Corps Center of Expertise (CX) and Directory of Expertise (DX). The...

  1. Social and psychological risks expertise in crisis communities

    Energy Technology Data Exchange (ETDEWEB)

    Shvalb, Y. [Ukrainian Institute of Psychology (Ukraine)

    1998-07-01

    Emerging and development of crises in the communities leads to considerable increase of individual's risks' quality and quantity. Irrespectively of risk scale - partial or total influence on a community - a number of tendencies of risks increase could be identified. On social level risks result from the tendency of social protection decrease and restriction in free choice of activities' forms and kinds. On group level confrontation and clashes emerge, increase intolerance and decrease tolerance are identified. On interpersonal (micro group) level aggression and abuse intensify. On individual level a complex of negative psychological statuses develops, which is diverse both as for its content and forms. Reasons of crisis development and its dynamics determine the content and concrete forms of risks on all levels. Systematic description of risks and development of psychological support programmes for population in risk presupposes organization and delivering of comprehensive social and psychological expertise of situation. Such an expertise makes it possible to unite in a comprehensive model of the multi-professional descriptions of crisis situations on the above mentioned levels, the subjective concepts of the population (or its separate groups) together with evaluation of various projects and programmes on crisis coping and risks decrease options. (author)

  2. Philosophers' biased judgments persist despite training, expertise and reflection.

    Science.gov (United States)

    Schwitzgebel, Eric; Cushman, Fiery

    2015-08-01

    We examined the effects of framing and order of presentation on professional philosophers' judgments about a moral puzzle case (the "trolley problem") and a version of the Tversky & Kahneman "Asian disease" scenario. Professional philosophers exhibited substantial framing effects and order effects, and were no less subject to such effects than was a comparison group of non-philosopher academic participants. Framing and order effects were not reduced by a forced delay during which participants were encouraged to consider "different variants of the scenario or different ways of describing the case". Nor were framing and order effects lower among participants reporting familiarity with the trolley problem or with loss-aversion framing effects, nor among those reporting having had a stable opinion on the issues before participating the experiment, nor among those reporting expertise on the very issues in question. Thus, for these scenario types, neither framing effects nor order effects appear to be reduced even by high levels of academic expertise. Copyright © 2015 Elsevier B.V. All rights reserved.

  3. Experiencing Art: The Influence of Expertise and Painting Abstraction Level

    Science.gov (United States)

    Pihko, Elina; Virtanen, Anne; Saarinen, Veli-Matti; Pannasch, Sebastian; Hirvenkari, Lotta; Tossavainen, Timo; Haapala, Arto; Hari, Riitta

    2011-01-01

    How does expertise influence the perception of representational and abstract paintings? We asked 20 experts on art history and 20 laypersons to explore and evaluate a series of paintings ranging in style from representational to abstract in five categories. We compared subjective esthetic judgments and emotional evaluations, gaze patterns, and electrodermal reactivity between the two groups of participants. The level of abstraction affected esthetic judgments and emotional valence ratings of the laypersons but had no effect on the opinions of the experts: the laypersons’ esthetic and emotional ratings were highest for representational paintings and lowest for abstract paintings, whereas the opinions of the experts were independent of the abstraction level. The gaze patterns of both groups changed as the level of abstraction increased: the number of fixations and the length of the scanpaths increased while the duration of the fixations decreased. The viewing strategies – reflected in the target, location, and path of the fixations – however indicated that experts and laypersons paid attention to different aspects of the paintings. The electrodermal reactivity did not vary according to the level of abstraction in either group but expertise was reflected in weaker responses, compared with laypersons, to information received about the paintings. PMID:21941475

  4. Experiencing art: the influence of expertise and painting abstraction level

    Directory of Open Access Journals (Sweden)

    Elina ePihko

    2011-09-01

    Full Text Available How does expertise influence the perception of representational and abstract paintings? We asked 20 experts on art history and 20 laypersons to explore and evaluate a series of paintings ranging in style from representational to abstract in five categories. We compared subjective aesthetic judgments and emotional evaluations, gaze patterns, and electrodermal reactivity between the two groups of participants. The level of abstraction affected aesthetic judgments and emotional valence ratings of the laypersons but had no effect on the opinions of the experts: the laypersons’ aesthetic and emotional ratings were highest for representational paintings and lowest for abstract paintings, whereas the opinions of the experts were independent of the abstraction level. The gaze patterns of both groups changed as the level of abstraction increased: the number of fixations and the length of the scanpaths increased while the duration of the fixations decreased. The viewing strategies—reflected in the target, location and path of the fixations—however indicated that experts and laypersons paid attention to different aspects of the paintings. The electrodermal reactivity did not vary according to the level of abstraction in either group but expertise was reflected in weaker responses, compared with laypersons, to information received about the paintings.

  5. The Role of Teachers' Pedagogical and Subject-Matter Knowledge in Planning and Enacting Science-Inquiry Instruction, and in Assessing Students' Science-Inquiry Learning

    Science.gov (United States)

    Birlean, Camelia

    This study explored the relation between pedagogical knowledge and subject-matter knowledge, in the context of inquiry-driven science instruction, and their relation to instructors' performance in the instructional process. This multiple case study focused on three distinct categories of teachers--Novice in Inquiry and in Science, Novice in Inquiry and Expert in Science, and Expert in Inquiry and in Science--and examined the commonalities and differences among them by exploring the cognitive processes these teachers used when planning and enacting an inquiry instructional situation, as well as when assessing students' learning resulting from this specific instructional event. Inquiry instruction varied across cases from largely structured to largely open. The Novice-Novice's science instruction, predominantly traditional in the approach, differed greatly from that of the Expert-Expert and of the Novice-Expert. The latter two emphasized--to various extents structured, guided, and open--inquiry strategy as part of their ongoing instruction. The open inquiry was an approach embraced solely by the Expert-Expert teacher throughout the Advanced Science Research instruction, emphasizing the creative aspect of problem generation. Edward teacher also distinguished himself from the other two participants in his view of planning and terminology used to describe it, both of which emphasized the dynamic and flexible feature of this instructional process. The Expert-Expert identified occasional planning, planning of specific skills and content critical to students' learning process during their independent inquiry. The observed teaching performance of the three participants partly reflected their planning; the alignment was least frequent for the Novice-Novice. The assessment of inquiry-based projects varied greatly across participants. Each teacher participant evaluated a set of three inquiry-based science projects that differed in their quality, and this variation increased

  6. Musical expertise and foreign speech perception

    Directory of Open Access Journals (Sweden)

    Eduardo eMartínez-Montes

    2013-11-01

    Full Text Available The aim of this experiment was to investigate the influence of musical expertise on the automatic perception of foreign syllables and harmonic sounds. Participants were Cuban students with high level of expertise in music or in visual arts and with the same level of general education and socio-economic background. We used a multi-feature Mismatch Negativity (MMN design with sequences of either syllables in Mandarin Chinese or harmonic sounds, both comprising deviants in pitch contour, duration and Voice Onset Time (VOT or equivalent that were either far from (Large deviants or close to (Small deviants the standard. For both Mandarin syllables and harmonic sounds, results were clear-cut in showing larger MMNs to pitch contour deviants in musicians than in visual artists. Results were less clear for duration and VOT deviants, possibly because of the specific characteristics of the stimuli. Results are interpreted as reflecting similar processing of pitch contour in speech and non-speech sounds. The implications of these results for understanding the influence of intense musical training from childhood to adulthood and of genetic predispositions for music on foreign language perception is discussed.

  7. How to attain expertise in clinical communication?

    Science.gov (United States)

    Wouda, Jan C; van de Wiel, Harry B M

    2013-12-01

    Several factors complicate the attainment of expertise in clinical communication. Medical curricula and postgraduate training insufficiently provide the required learning conditions of deliberate practice to overcome these obstacles. In this paper we provide recommendations for learning objectives and teaching methods for the attainment of professional expertise in patient education. Firstly, we propose to use functional learning objectives derived from the goals and strategies of clinical communication. Secondly, we recommend using teaching and assessment methods which: (1) contain stimulating learning tasks with opportunities for immediate feedback, reflection and corrections, and (2) give ample opportunity for repetition, gradual refinements and practice in challenging situations. Video-on-the-job fits these requirements and can be used to improve the competency in patient education of residents and medical staff in clinical practice. However, video-on-the-job can only be successful if the working environment supports the teaching and learning of communication and if medical staff which supervises the residents, is motivated to improve their own communication and didactic skills. Copyright © 2013 Elsevier Ltd. All rights reserved.

  8. LINGUISTIC EXPERTISE AS A LANGUAGE POLICY TOOL

    Directory of Open Access Journals (Sweden)

    E. S. Kara-Мurzа

    2014-01-01

    Full Text Available In sociolinguistic terms, certain aspects of academician Grot’s activity can be seen as language policy. Therefore a discussion of the new conflictological direction of sociolinguistics (along with status and corpus directions is of current importance. Its object is delinquent communicative situations: 1 speech crimes against non-proprietary rights of people and organizations (deffamation and libel, against societal and governmental rights to normal functioning (speech extremism; 2 discussions of mass media deontology violations. Its objectives are identification and resolution of conflicts in communication, as well as punishment and prevention of speech crimes. Within its framework, the decision of a court or a deontological authority is a direct act of language policy, whereas a linguistic expertise is its consecutive act and simultaneously its tool. A linguistic expertise as a procedure of search for an evidential base of a speech crime is performed in governmental and independent centers. This correlates with a governmental and public direction of speech policy, revealing their inherent contradictions. As an illustration the author uses a lawsuit on protection of honor and dignity of a «United Russia» party member V. Svirid versus a well-known political figure of the opposition field, A. Navalny, in which the court verdict didn't take into consideration the professional opinions of linguistical experts from a regional university.

  9. [The genesis, system, functions, and tendencies in the development of forensic expertise].

    Science.gov (United States)

    Rossinskaya, E R

    The author considers the main landmarks in the formation and development of the science of forensic expertise and related activities. Special attention is given to the necessity of increasing knowledge and skills in judicial proceedings, further elaboration and perfection of the theory and practice of forensic expertise to meet the requirements put forward by the XXIth century. It is emphasized that this work is needed to lay the foundation for the creation of the self-consistent science - forensic expertology, based on the interdisciplinary general theory of forensic expertise. The author builds up the definition of the subject of forensic expertology taking into consideration the basic issues studied by this science. The scientific paradigm, its functions, tendencies and prospects for its further development are substantiated.

  10. Fusion of expertise among accounting accounting faculty. Towards an expertise model for academia in accounting.

    NARCIS (Netherlands)

    Njoku, Jonathan C.; van der Heijden, Beatrice; Inanga, Eno L.

    2010-01-01

    This paper aims to portray an accounting faculty expert. It is argued that neither the academic nor the professional orientation alone appears adequate in developing accounting faculty expertise. The accounting faculty expert is supposed to develop into a so-called ‘flexpert’ (Van der Heijden, 2003)

  11. Solid-state 13C nuclear magnetic resonance spectroscopic characterization of soil organic matter fractions in a forest ecosystem subjected to prescribed burning and thinning

    Science.gov (United States)

    Prescribed burning and thinning are gaining popularity as low-cost forest protection measures. Such field management practices could alter the chemical properties of soil organic matter (SOM), especially humic substances. In this work, we collected surface soil samples from the Bankhead National For...

  12. Expertise in Everyday Nurse–Patient Conversations

    Directory of Open Access Journals (Sweden)

    Lindsay M. Macdonald

    2016-04-01

    Full Text Available A great deal of nursing activity is embedded in what is considered to be everyday conversation. These conversations are important to health professionals because communication can affect health outcomes, and they are important to patients who want to know they are being heard and cared for. How do nurses talk with patients and what are the features of effective communication in practice? In this exploratory study, two expert nurses recorded conversations with patients during domiciliary visits. Linguistic discourse analysis, informed by contextual knowledge of domiciliary nursing shows the nurses skillfully used small talk to support their clinical work. In their conversations, nurses elicit specific information, normalize unpleasant procedures, manage the flow of the interaction, and strengthen the therapeutic relationship. Small talk can be big talk in achieving nursing goals. Critically reflecting on recorded clinical interactions can be a useful method of professional development and a way of demonstrating nursing expertise.

  13. Gray and white matter changes in subjective cognitive impairment, amnestic mild cognitive impairment and Alzheimer's disease: a voxel-based analysis study.

    Directory of Open Access Journals (Sweden)

    Kuniaki Kiuchi

    Full Text Available Subjective cognitive impairment may be a very early at-risk period of the continuum of dementia. However, it is difficult to discriminate at-risk states from normal aging. Thus, detection of the early pathological changes in the subjective cognitive impairment period is needed. To elucidate these changes, we employed diffusion tensor imaging and volumetry analysis, and compared subjective cognitive impairment with normal, mild cognitive impairment and Alzheimer's disease. The subjects in this study were 39 Alzheimer's disease, 43 mild cognitive impairment, 28 subjective cognitive impairment and 41 normal controls. There were no statistically significant differences between the normal control and subjective cognitive impairment groups in all measures. Alzheimer's disease and mild cognitive impairment had the same extent of brain atrophy and diffusion changes. These results are consistent with the hypothetical model of the dynamic biomarkers of Alzheimer's disease.

  14. Should We Value Knowledge and Expertise? (editorial

    Directory of Open Access Journals (Sweden)

    Denise Koufogiannakis

    2011-09-01

    Full Text Available As I write this editorial, I am on an airplane, reflecting on the EBLIP6 conference, held June 27-30, 2011 in Salford, U.K. In my personal opinion, the conference was a great success. There were a wide variety of concurrent paper sessions from an international group of delegates, thought provoking keynotes, and just the right amount of social activity, including the main conference dinner at the Manchester United Football Club! This journal will have a Feature section in our next issue (December that highlights the conference, including keynote presentations, some of the papers that were presented, and commentaries from attendees about the conference itself. So for now, I’ll just offer my warmest congratulations to the organizers.As I left Salford and tried to reflect on what I had learned and discussed with others, there were many things that came to mind. Immediate things that stood out for me had to do with impact, reflection, and the complexity of decision making. The theme of EBLIP6 was “Valuing Knowledge and Expertise”. This is a somewhat controversial theme for an evidence based practice conference, where research evidence and its implementation are the focus, and expert opinion is not generally held in high regard. None of the keynote speakers’ presentations spoke directly to the theme, however several paper presentations did include some reference to the importance of professional knowledge.Expertise is a loaded word, filled with notions of snobbery and over-confidence, even close-mindedness. If anything, those involved with EBLIP remove themselves as far from the notion of “expert” as they can. But if we consider an expert to be someone who has built up a significant amount of professional knowledge (both through experience and research on a topic, then the EBLIP movement should not simply dismiss this notion of “expert”. Perhaps, we more appropriately should consider expert voices (knowledgeable, reasonable

  15. Low episodic memory performance in cognitively normal elderly subjects is associated with increased posterior cingulate gray matter N-acetylaspartate: a1H MRSI study at 7 Tesla.

    Science.gov (United States)

    Schreiner, Simon J; Kirchner, Thomas; Wyss, Michael; Van Bergen, Jiri M G; Quevenco, Frances C; Steininger, Stefanie C; Griffith, Erica Y; Meier, Irene; Michels, Lars; Gietl, Anton F; Leh, Sandra E; Brickman, Adam M; Hock, Christoph; Nitsch, Roger M; Pruessmann, Klaas P; Henning, Anke; Unschuld, Paul G

    2016-12-01

    Low episodic memory performance characterizes elderly subjects at increased risk for Alzheimer's disease (AD) and may reflect neuronal dysfunction within the posterior cingulate cortex and precuneus (PCP) region. To investigate a potential association between cerebral neurometabolism and low episodic memory in the absence of cognitive impairment, tissue-specific magnetic resonance spectroscopic imaging at ultrahigh field strength of 7 Tesla was used to investigate the PCP region in a healthy elderly study population (n = 30, age 70 ± 5.7 years, Mini-Mental State Examination 29.4 ± 4.1). The Verbal Learning and Memory Test (VLMT) was administered as part of a neuropsychological battery for assessment of episodic memory performance. Significant differences between PCP gray and white matter could be observed for glutamate-glutamine (p = 0.001), choline (p = 0.01), and myo-inositol (p = 0.02). Low Verbal Learning and Memory Test performance was associated with high N-acetylaspartate in PCP gray matter (p = 0.01) but not in PCP white matter. Our data suggest that subtle decreases in episodic memory performance in the elderly may be associated with increased levels of N-acetylaspartate as a reflection of increased mitochondrial energy capacity in PCP gray matter. Copyright © 2016 Elsevier Inc. All rights reserved.

  16. Instructional Design for Accelerated Macrocognitive Expertise in the Baseball Workplace

    OpenAIRE

    Peter J. Fadde

    2016-01-01

    The goal of accelerating expertise can leave researchers and trainers in human factors, naturalistic decision making, sport science, and expertise studies concerned about seemingly insufficient application of expert performance theories, findings and methods for training macrocognitive aspects of human performance. Video-occlusion methods perfected by sports expertise researchers have great instructional utility, in some cases offering an effective and inexpensive alternative to high-fidelity...

  17. Expertise synthesis on the CSPE; Synthese d'expertise sur la CSPE

    Energy Technology Data Exchange (ETDEWEB)

    Blonde, G.; Poizat, F

    2008-01-15

    This document presents a synthesis of the results of an expertise realized on the CSPE, the compensation tax of the electric public service. This tax concerns the management of the electricity production additional costs in isolated areas, the solidarity, a policy to favor the energy efficiency and the renewable energies. The document explains the historical aspects of the tax elaboration, its financial importance, the consequences and the impacts on the competition. (A.L.B.)

  18. Defining Expertise in Gynecologic Surgery: Perspectives of Expert Gynecologic Surgeons.

    Science.gov (United States)

    Hardré, Patricia L; Nihira, Mikio; LeClaire, Edgar; Moen, Michael

    The aim of this study was to describe how professional expertise is defined and understood among gynecologic surgeons and what experiential factors contribute to that understanding. Semistructured interviews with 16 experts in Female Pelvic Medicine and Reconstructive Surgery were conducted to identify how expertise in their field is defined, recognized, and assessed. Independent thematic analysis of the interview transcripts was performed by each member of the research team and then distilled and synthesized into convergent themes. Experts described surgical expertise as difficult to define but with several dominant themes including knowledge, technical skills, clinical experience, adaptability, continuous learning, communication, and professional recognition. Expertise requires judgment in applying technical skills to meet each patient's specific needs. Experts described unique ways of seeing and thinking during surgery, characterized by spatial awareness of relevant anatomy, temporal awareness of future changes, and rapidly adaptive application of their skills enabling them to do difficult tasks with fluidity, making the tasks seem easy to observers. These expert surgeons acknowledged that achieving expertise requires hard work and maintaining expertise requires continuous learning, highlighted by challenge seeking to do the most difficult tasks in their field. They also noted the importance of effective communication of their knowledge to others, which contributes to their perception as experts by colleagues in the field. Surgical expertise is a complex phenomenon with several meaningful themes. Understanding the authentic nature of surgical expertise can be used to support the development of competencies and the effective mentoring of promising surgical trainees to achieve surgical expertise.

  19. The Automation-by-Expertise-by-Training Interaction.

    Science.gov (United States)

    Strauch, Barry

    2017-03-01

    I introduce the automation-by-expertise-by-training interaction in automated systems and discuss its influence on operator performance. Transportation accidents that, across a 30-year interval demonstrated identical automation-related operator errors, suggest a need to reexamine traditional views of automation. I review accident investigation reports, regulator studies, and literature on human computer interaction, expertise, and training and discuss how failing to attend to the interaction of automation, expertise level, and training has enabled operators to commit identical automation-related errors. Automated systems continue to provide capabilities exceeding operators' need for effective system operation and provide interfaces that can hinder, rather than enhance, operator automation-related situation awareness. Because of limitations in time and resources, training programs do not provide operators the expertise needed to effectively operate these automated systems, requiring them to obtain the expertise ad hoc during system operations. As a result, many do not acquire necessary automation-related system expertise. Integrating automation with expected operator expertise levels, and within training programs that provide operators the necessary automation expertise, can reduce opportunities for automation-related operator errors. Research to address the automation-by-expertise-by-training interaction is needed. However, such research must meet challenges inherent to examining realistic sociotechnical system automation features with representative samples of operators, perhaps by using observational and ethnographic research. Research in this domain should improve the integration of design and training and, it is hoped, enhance operator performance.

  20. New light on a dark subject: On the use of fluorescence data to deduce redox states of natural organic matter (NOM)

    Science.gov (United States)

    Macalady, Donald L.; Walton-Day, Katherine

    2009-01-01

    This paper reports the use of excitation-emission matrix fluorescence spectroscopy (EEMS), parallel factor statistical analysis (PARAFAC), and oxidation-reduction experiments to examine the effect of redox conditions on PARAFAC model results for aqueous samples rich in natural organic matter. Fifty-four aqueous samples from 11 different geographic locations and two plant extracts were analyzed untreated and after chemical treatments or irradiation were used in attempts to change the redox status of the natural organic matter. The EEMS spectra were generated and modeled using a PARAFAC package developed by Cory and McKnight (2005). The PARAFAC model output was examined for consistency with previously reported relations and with changes expected to occur upon experimental oxidation and reduction of aqueous samples. Results indicate the implied fraction of total sample fluorescence attributed to quinone-like moieties was consistent (0.64 to 0.78) and greater than that observed by Cory and McKnight (2005). The fraction of the quinone-like moieties that was reduced (the reducing index, RI) showed relatively little variation (0.46 to 0.71) despite attempts to alter the redox status of the natural organic matter. The RI changed little after reducing samples using zinc metal, oxidizing at high pH with air, or irradiating with a Xenon lamp. Our results, however, are consistent with the correlations between the fluorescence indices (FI) of samples and the ratio of PARAFAC fitting parameters suggested by Cory and McKnight (2005), though we used samples with a much narrower range of FI values.

  1. Sherlock Holmes: an expert's view of expertise.

    Science.gov (United States)

    André, Didierjean; Fernand, Gobet

    2008-02-01

    In recent years, there has been an intense research effort to understand the cognitive processes and structures underlying expert behaviour. Work in different fields, including scientific domains, sports, games and mnemonics, has shown that there are vast differences in perceptual abilities between experts and novices, and that these differences may underpin other cognitive differences in learning, memory and problem solving. In this article, we evaluate the progress made in the last years through the eyes of an outstanding, albeit fictional, expert: Sherlock Holmes. We first use the Sherlock Holmes character to illustrate expert processes as described by current research and theories. In particular, the role of perception, as well as the nature and influence of expert knowledge, are all present in the description of Conan Doyle's hero. In the second part of the article, we discuss a number of issues that current research on expertise has barely addressed. These gaps include, for example, several forms of reasoning, the influence of emotions on cognition, and the effect of age on experts' knowledge and cognitive processes. Thus, although nearly 120-year-old, Conan Doyle's books show remarkable illustrations of expert behaviour, including the coverage of themes that have mostly been overlooked by current research.

  2. ITER Creation Safety File Expertise Results

    Science.gov (United States)

    Perrault, D.

    2013-06-01

    In March 2010, the ITER operator delivered the facility safety file to the French "Autorité de Sûreté Nucléaire" (ASN) as part of its request for the creation decree, legally necessary before building works can begin on the site. The French "Institut de Radioprotection et de Sûreté Nucléaire" (IRSN), in support to the ASN, recently completed its expertise of the safety measures proposed for ITER, on the basis of this file and of additional technical documents from the operator. This paper presents the IRSN's main conclusions. In particular, they focus on the radioactive materials involved, the safety and radiation protection demonstration (suitability of risk management measures…), foreseeable accidents, building and safety important component design and, finally, wastes and effluents to be produced. This assessment was just the first legally-required step in on-going safety monitoring of the ITER project, which will include other complete regulatory re-evaluations.

  3. Medical Evidence and Expertise in Abortion Jurisprudence.

    Science.gov (United States)

    Ahmed, Aziza

    2015-01-01

    For another thing, the division of medical opinion about the matter at most means uncertainty, a factor that signals the presence of risk, not its absence. That division here involves highly qualified knowledgeable experts on both sides of the issue.--Stenberg v. Carhart, 2000. While we find no reliable data to measure the phenomenon, it seems unexceptionable to conclude some women come to regret their choice to abort the infant life they once created and sustained.--Gonzales v. Carhart, 2007.

  4. Invasive Species Working Group: Research Summary and Expertise Directory

    Science.gov (United States)

    Jack Butler; Dean Pearson; Mee-Sook Kim

    2009-01-01

    Rocky Mountain Research Station (RMRS) personnel have scientific expertise in widely ranging disciplines and conduct multidisciplinary research on invasive species issues with emphasis in terrestrial and aquatic habitats throughout the Interior West, Great Plains, and related areas (fig. 1; Expertise Directory; appendix). RMRS invasive species research covers an array...

  5. Learning Stories from IT Workers--Development of Professional Expertise

    Science.gov (United States)

    Ha, Tak S.

    2015-01-01

    In the knowledge economy, many companies are well aware of the vital need to maintain the professional expertise of their workers at a high level. Though there have been a lot of research studies in the areas of professional expertise and workplace learning, few examined the learning pathways novice workers went through to become experts in their…

  6. Expertise of Team Leaders in Analysing Team Conflicts

    Science.gov (United States)

    Rupprecht, Maria; Strasser, Josef; Gruber, Hans; Harteis, Christian

    2010-01-01

    Team leaders are expected to adequately analyse team conflicts. Both content and analytical depth of cognitive processes determine team leaders' performance and are assumed to differ with level of expertise. A study is reported in which team leaders at four different levels of expertise (novices, semi-experts, experts, mediators) were compared in…

  7. Understanding Clinical Expertise: Nurse Education, Experience, and the Hospital Context

    Science.gov (United States)

    McHugh, Matthew D.; Lake, Eileen T.

    2010-01-01

    Clinical nursing expertise is central to quality patient care. Research on factors that contribute to expertise has focused largely on individual nurse characteristics to the exclusion of contextual factors. To address this, we examined effects of hospital contextual factors and individual nurse education and experience on clinical nursing expertise in a cross-sectional analysis of data from 8,611 registered nurses. In a generalized ordered logistic regression analysis, the composition of the hospital staff, particularly the proportion of nurses with at least a bachelor of science in nursing degree, was associated with significantly greater odds of a nurse reporting a more advanced expertise level. Our findings suggest that, controlling for individual characteristics, the hospital context significantly influences clinical nursing expertise. PMID:20645420

  8. Age, Cumulative Trauma and Stressful Life Events, and Post-Traumatic Stress Symptoms among Older Adults in Prison: Do Subjective Impressions Matter?

    Science.gov (United States)

    Maschi, Tina; Morgen, Keith; Zgoba, Kristen; Courtney, Deborah; Ristow, Jennifer

    2011-01-01

    Background: The aging prison population in the United States presents a significant public health challenge with high rates of trauma and mental health issues that the correctional system alone is ill-prepared to address. The purpose of this study was to examine the relationship of age, objective, and subjective measures of trauma and stressful…

  9. Using Academic Journals to Help Students Learn Subject Matter Content, Develop and Practice Critical Reasoning Skills, and Reflect on Personal Values in Food Science and Human Nutrition Classes

    Science.gov (United States)

    Iwaoka, Wayne T.; Crosetti, Lea M.

    2008-01-01

    It has been reported that students learn best when they use a wide variety of techniques to understand the information of the discipline, be it visual, auditory, discussion with others, metacognition, hands-on activities, or writing about the subject. We report in this article the use of academic journals not only as an aid for students to learn…

  10. A Structural Equation Model Analyzing the Relationship of Student Achievement Motivations and Personality Factors in a Range of Academic Subject-Matter Areas

    Science.gov (United States)

    Tempelaar, Dirk T.; Gijselaers, Wim H.; Schim van der Loeff, Sybrand; Nijhuis, Jan F. H.

    2007-01-01

    The question of subject-specificity of achievement motivations is important, both for educational psychology, as well as for educational policy. This study contributes to the investigation of the heterogeneity in achievement motivations in the context of the expectancy-value model. Whereas existing research deals with middle and high school…

  11. The search for the good in nursing? The burden of ethical expertise.

    Science.gov (United States)

    Nelson, Sioban

    2004-04-01

    This paper examines the increasing trend by nursing scholars such as Patricia Benner to conceptualize ethics as a contextual and embodied 'way of knowing', embedded in nursing expertise. The intellectual origins of this development and its debt to neo-Aristotelian thinkers such as philosopher Charles Taylor are discussed. It will be argued that rather than revealing a truth about ethical expertise, the emergence of the 'expert' nurse as a moral and ethical category is the result of the elaboration of neo-Thomist discourses in the educational and professional shaping of nurses. These discourses act on and are enacted by the individual nurse through his or her participation in specific ethical exercises that result in the constitution of the desired subjectivity - or 'expertise'. Central to this shaping are particular notions of 'the good' and its relationship to knowledge, skill and practice. Critiques of these neo-Aristotelian perspectives are discussed and applied to the notion of moral expertise in nursing, and the claims made by its proponents concerning the 'ethical' distinction between experienced and expert nurses. Finally, a call is made for a more pluralistic approach to ethics.

  12. Reciprocal Expertise Affirmation and Shared Expertise Perceptions in Work Teams : Their Implications for Coordinated Action and Team Performance

    NARCIS (Netherlands)

    Grutterink, Hanneke; Van der Vegt, Gerben S.; Molleman, Eric; Jehn, Karen A.

    In this paper we argue that reciprocal expertise affirmationi.e. the mutual recognition by team members that they respect, value, and affirm each other's expertiseis positively related to team performance, but only in teams with high levels of shared expertise perceptions. Moreover, we propose that

  13. Task complexity reveals expertise of table tennis players.

    Science.gov (United States)

    Padulo, Johnny; Pizzolato, Fabio; Tosi Rodrigues, Sergio; Migliaccio, Gian M; Attene, Giuseppe; Curcio, Raffaele; Zagatto, Alessandro M

    2016-01-01

    The purpose of this study was to examine the effect of intensive practice in table tennis on perceptual, decision-making and motor-systems. Groups of elite (HL, N.=11), intermediate (LL, N.=6) and control players (CC, N.=11) performed tasks of different levels. All subjects underwent to reaction time test and response time test consisting of a pointing task to targets placed at distinct distances (15 and 25 cm away) on the right and left sides. Only the HL and LL groups were requested to perform the ball speed test in forehand and backhand condition. In the CC group reaction time was higher compared to the HL (P<0.05) group. In the response time test, there was a significant main effect of distance (P<0.0001) and the tennis table expertise (P=0.011). In the ball speed test HL players were consistently faster compared to LL players in both forehand stroke (P<0.0001) and backhand stroke (P<0.0001). Overall, the forehand stroke was significantly faster than the backhand stroke. We can conclude that table tennis players have shorter response times than non-athletes and the tasks of reaction time and response time are incapable to distinguish between the performance of well-trained table tennis players and that of intermediate players, but the ball speed test seems to be able to do it.

  14. [Politics: which contribution can ethical expertise give biopolitical decisions?].

    Science.gov (United States)

    Weber-Hassemer, Kristiane

    2008-08-01

    Research in the life sciences is developing at a rapid pace, has profound implications in terms of its effects on human nature and touches upon the self-conceptions of both the individual and society. In order to determine how this research and its application in all phases of human life should be assessed on the moral level, and whether it should be subject to regulation, the involvement of all disciplines--in the natural sciences, medicine, philosophy, law and the social sciences--that can contribute knowledge for the purpose of guidance is indispensable. Political decisions should be preceded by a wide-ranging debate within society encompassing all relevant groups and the media. Alongside discourse confined to specialists and their forums, a particular part can be played by the institution of ethics committees with an interdisciplinary, pluralistic membership. Their work can contribute to the stimulation of social debate and to ensuring that it is conducted on a suitably high level. In our knowledge society, Government and Parliament lack the information necessary to guide their decisions, and therefore require external expertise to provide a solid foundation for them. In the field of bioethics, however, the relationship between advisory activity and parliamentary decision-making proves is not without problems, because, in addition to rational criteria and party-political considerations, personal moral judgements are not only unavoidable but also legitimate, though they are not always made transparent.

  15. A study of expertise effects for products with contradictory semantics

    Directory of Open Access Journals (Sweden)

    Wang Ching-Yi

    2017-01-01

    Full Text Available In the design studies, researchers often use the semantic differential method with bipolar adjectives, such as “modern vs. classical” or “simple vs. complex” when investigating the semantics projected by product forms. However, in design practice, some design examples clearly exhibit the simultaneous use of contradictory meanings in product semantics. For example, retro car evokes nostalgia by borrowing characteristics from classical cars. At the same time it exhibits a modern style. However, most studies measure the product semantics mostly by using subjective measurement. There is lack objective measurement for that. In this research, we examined the results of applying the semantic differential method to measure contradiction in product semantics. The results showed that the distributions of semantic differential ratings for the stimuli with contradictory meanings have higher standard deviations. The sensitivity of semantic recognition may depend on participant expertise. The design experts are trained to be good at visual thinking that could easily identify the contradiction semantics between products. In general, successful embedding of contradictory meanings into product forms are based on simple, typical, and rational forms that can display complex, novel, and perceptual images by adding supplementary elements.

  16. White matter organization in relation to upper limb motor control in healthy subjects: exploring the added value of diffusion kurtosis imaging.

    Science.gov (United States)

    Gooijers, J; Leemans, A; Van Cauter, S; Sunaert, S; Swinnen, S P; Caeyenberghs, K

    2014-09-01

    Diffusion tensor imaging (DTI) characterizes white matter (WM) microstructure. In many brain regions, however, the assumption that the diffusion probability distribution is Gaussian may be invalid, even at low b values. Recently, diffusion kurtosis imaging (DKI) was suggested to more accurately estimate this distribution. We explored the added value of DKI in studying the relation between WM microstructure and upper limb coordination in healthy controls (N = 24). Performance on a complex bimanual tracking task was studied with respect to the conventional DTI measures (DKI or DTI derived) and kurtosis metrics of WM tracts/regions carrying efferent (motor) output from the brain, corpus callosum (CC) substructures and whole brain WM. For both estimation models, motor performance was associated with fractional anisotropy (FA) of the CC-genu, CC-body, the anterior limb of the internal capsule, and whole brain WM (r s range 0.42-0.63). Although DKI revealed higher mean, radial and axial diffusivity and lower FA than DTI (p motor performance was associated with increased mean and radial kurtosis and kurtosis anisotropy (r s range 0.43-0.55). In conclusion, DKI provided additional information, but did not show increased sensitivity to detect relations between WM microstructure and bimanual performance in healthy controls.

  17. Mnemonic expertise during wakefulness and sleep.

    Science.gov (United States)

    Dresler, Martin; Konrad, Boris N

    2013-12-01

    We studied the world's most distinguished experts in the use of mnemonic techniques: the top participants of the World Memory Championships. They neither feel the use of mnemonics to be dreamlike, nor does their REM sleep differ from mnemonic-naive control subjects. Besides these empirical data, also theoretical considerations contradict an isomorphism between features of REM sleep dreaming and mnemonic principles.

  18. Expertise or performance? Questioning the rhetoric of contemporary narrative use in nursing.

    Science.gov (United States)

    Nelson, Sioban; McGillion, Michael

    2004-09-01

    In the early 1980s there emerged in nursing a self-conscious and well-articulated concern to articulate nursing's contribution to patient care. This has fostered the production of a large volume of practice narratives that today form the basis of professional self-understanding. First-person practice narratives are now widely used as the evidence base for nursing expertise, not only in their natural home, the world of interpretative research, but also in the bureaucratic-judicial domain of professional regulation, health care organizations, trades unions and professional associations. The aim of this paper is to question the use of individual narrative accounts of nursing practice as evidence of nursing expertise. We examine the model, method, and continuing consequences of these discursive formations of practice. First, we present a methodological discussion of how personal narratives are produced by the interplay between discourse and subjectivity. Second, we explore clinical narratives of expertise in the work of Patricia Benner and others to uncover the common template for contemporary narrative. Narrative production in nursing has led to particular constructions, rather than free representations of practice. It is these particular constructions that we call into question. Rather than viewing these narratives as revelatory of nursing practice, we argue that they place a 'spotlight' on the individual actor - the nurse - with an absence of structural practice context. We make the case that treatment of these narratives as individual evidence of expertise fundamentally misunderstands their function and purpose, and reduces the constitution of nursing expertise to the performance of a palatable and highly desirable discourse for a nursing audience.

  19. Dark matter an introduction

    CERN Document Server

    Majumdar, Debasish

    2015-01-01

    Dark Matter: An Introduction tackles the rather recent but fast-growing subject of astroparticle physics, encompassing three main areas of fundamental physics: cosmology, particle physics, and astrophysics. Accordingly, the book discusses symmetries, conservation laws, relativity, and cosmological parameters and measurements, as well as the astrophysical behaviors of galaxies and galaxy clusters that indicate the presence of dark matter and the possible nature of dark matter distribution.

  20. Expertise as evidence in criminal proceedings from the Communist period until nowadays

    Directory of Open Access Journals (Sweden)

    Saimir Fekolli

    2015-07-01

    Full Text Available During their procedural activity, investigative and judicial bodies have the pressing need to make use of special knowledge in different scientific fields of technique and science in order to resolve outstanding issues related to the subject of verification, which the law has defined as subject of expertise in criminal trial. Experts’ opinion is conceived and implemented as a particular means of verification; experts help in discovering the facts that are important to finding out the truth in criminal proceedings. In addition, they ascertain the facts and give an opinion on them, as a result of specific skills they have in the field of technique, science or culture. Experts and the process conducted by them were given importance in the legislation of the Communist era particularly with the drafting of the Code of Criminal Procedure of 1979 which provides in considerable detail both the functions and the importance of expertise to resolve a criminal case. Furthermore, nowadays expertise as evidence in criminal proceedings is becoming increasingly important and is emerging, especially in view of developments in the field of Technique and Science since many criminals are very good at using innovations as a priority means for escaping detection and punishment. But on the other hand, scientific developments are increasingly cooperating with law and justice institutions to resolve the events and to provide assistance for achieving quality results in a shorter time, something that probably was unthinkable before.

  1. Relational Ruin or Social Glue? The Joint Effect of Relationship Type and Gossip Valence on Liking, Trust, and Expertise.

    Science.gov (United States)

    Turner, Monique Mitchell; Mazur, Michelle A.; Wendel, Nicole; Winslow, Robert

    2003-01-01

    Explores gossip's function as a social influence tool. Considers if gossip is untrustworthy, leading to relational demise, or whether gossip can lead to perceived liking, trust, and expertise. Indicates that for the undergraduate student subjects, both positive and negative gossip are perceived negatively for both friends and strangers. (SG)

  2. Neural basis of nonanalytical reasoning expertise during clinical evaluation

    NARCIS (Netherlands)

    Durning, S.J.; Costanzo, M.E.; Artino, A.R.; Graner, J.; Vleuten, C.P.M. van der; Beckman, T.J.; Wittich, C.M.; Roy, M.J.H.M. van; Holmboe, E.S.; Schuwirth, L.

    2015-01-01

    INTRODUCTION: Understanding clinical reasoning is essential for patient care and medical education. Dual-processing theory suggests that nonanalytic reasoning is an essential aspect of expertise; however, assessing nonanalytic reasoning is challenging because it is believed to occur on the

  3. Communicating scientific ideas: One element of physics expertise

    Science.gov (United States)

    Rodriguez, Idaykis; Goertzen, Renee Michelle; Brewe, Eric; Kramer, Laird

    2012-02-01

    In this paper we present an alternative perspective to physics expertise research. Using Lave and Wenger's theoretical perspective of Legitimate Peripheral Participation [4] as a guide to understanding expertise development, we redefine expertise from the perspective of physicists. We analyze data from an ethnographic, qualitative study of a physics research group and draw data from multiple sources to triangulate a definition of expert. Results show that a very critical part of becoming a physics expert in this physics research group is communicating one's scientific ideas through writing. Students perceive scientific writing as an important aspect of participating in the research group and it is a significant discussion point in the research meetings. Thus, it appears that learning to write a scientific paper is a process congruent to developing physics expertise.

  4. Expertise development in the professions; Implications for teaching and assessment

    NARCIS (Netherlands)

    Boshuizen, Els

    2011-01-01

    Boshuizen, H. P. A. (2011, 30 August - 3 September). Expertise development in the professions; Implications for teaching and assessment. Paper presented at the bi-annual EARLI conferences, Exeter, UK.

  5. Negotiating knowledges and expertise in refugee resettlement organizations

    Directory of Open Access Journals (Sweden)

    Sarah Steimel

    2016-12-01

    Full Text Available Interviews with both refugees and organizational staff in two nonprofit refugee resettlement organizations in the United States reveal the ways in which knowledge(s and expertise are crafted, threatened, and understood in refugee organizations. Refugee-participants described the need for knowledgeable communication, barriers to the communication of knowledge, and processes of negotiating whose expertise is involved. Organizational staff participants described the duty of communicating expert knowledge, the limits of knowledge as expertise, and alternative communications of expertise. These tensions surrounding “knowing” in refugee resettlement organizations highlights the need for a more complex theoretical understanding of the processes of knowing present in refugee resettlement. These tensions also suggest areas in which refugee resettlement agencies and other nonprofit staff can make on-the-ground changes to better facilitate refugee resettlement processes.

  6. Best Practice for Developmental Stuttering: Balancing Evidence and Expertise

    Science.gov (United States)

    Byrd, Courtney T.; Donaher, Joseph

    2018-01-01

    Purpose: Best practice for developmental stuttering remains a topic of debate. In the clinical forum following the introduction, four fluency experts balance the evidence and expertise to describe their approach to assessment and treatment.

  7. Professional Expertise in Magic – Reflecting on professional expertise in magic:An interview study

    Directory of Open Access Journals (Sweden)

    Olli eRissanen

    2014-12-01

    Full Text Available The purpose of the present investigation was to analyse interviews of highly regarded Finnish magicians. Social network analysis (N=120 was used to identify Finland’s most highly regarded magicians (N=16. The selected participants’ careers in professional magic and various aspects of their professional conduct were examined by relying on semi-structured interviews. The results revealed that cultivation of professional level competence in magic usually requires an extensive period of time compared with other domains of expertise. Magic is a unique performing art and it differs from other professions focusing on deceiving the audience. A distinctive feature of magical expertise is that the process takes place entirely through informal training supported by communities of magical practitioners. Three interrelated aspects of magical activity were distinguished: magic tricks, performance, and audience. Although magic tricks constitute a central aspect of magic activity, the participants did not talk about their tricks extensively; this is in accordance with the secretive nature of magic culture.The interviews revealed that a core aspect of the magicians’ activity is performance in front of an audience that repeatedly validates competence cultivated through years of practice. The interviewees reported investing a great deal of effort in planning, orchestrating, and reflecting on their performances. Close interaction with the audience plays an important role in most interviewees’ activity. Many participants put a great deal of effort in developing novel magic tricks. It is common to borrow magic effects from fellow magicians and develop novel methods of implementation. Because magic tricks or programs are not copyrighted, many interviewees considered stealing an unacceptable and unethical aspect of magical activity. The interviewees highlighted the importance of personality and charisma in the successful pursuit of magic activity.

  8. INDEPENDENT EVALUATION OF THE QUALITY OF EDUCATION: SOCIAL EXPERTISE IN FOREIGN AND RUSSIAN PRACTICE

    Directory of Open Access Journals (Sweden)

    Tatyana V. Potemkinа

    2015-01-01

    Full Text Available The aim of the study – the comparative characteristic of the Russian and foreign practice of public expertise of the quality of general education for the scientific substantiation of its specificity as a social phenomenon and a tool to assess the quality of education.Methods. The methods involve the reliance on the concept of public good, socially-relevant activities, revealing the social function and nature of education, and also the methodological principles of humanitarian expertise. Understanding and generalization of the contents publications on a subject (placed on the Internet and in periodicals are designed on the basis of methods of a deconstruction, the problem and comparative analysis with search depth no more than 5 years.Results. The analysis revealed a general trend of growth of attention to evaluation of education by the society under the influence of external (for education factors. In Russia, this is due to a request from the state, change of the legislative base of education and is accompanied by a higher level of regulation. Objects of social expertise of education in Russia and abroad, as a whole, coincide –these are the aspects of quality, availability, openness of general education. Russian practice shows the offset of the target orientation of assessment from performing the monitoring functions in relation to school to formulating of cohesive positions to solve the problems of education, which is common for the practice of social expertise of Western countries. The value of foreign practice involves the diversity of customers, demand for public evaluation as a tool by the parent community, public organizations, and research universities.Scientific novelty. The objectives, objects and subjects of an independent assessment of the quality of general education are clarified. Comprehensive theoretical basis for designing models of public expertise in the context, the development of scientific ideas and

  9. On the issue of automation the road objects visibility distance determining during road accident technical expertise

    Directory of Open Access Journals (Sweden)

    Kuzhel V.P.

    2016-08-01

    Full Text Available The problems of traffic accidents occurrence during the nighttime, problems determine the road subject visibility distance of under uncertainty and uncertainty of baseline data on existing methods are analyzed. The technique and expert application for determining the road conditions visibility distance in the light of car headlights. Application expert program enables improved application of technical expertise by automating determine the visibility distance of objects on the road with the possibility of using fuzzy expert information, which reduces the time spent expert analysis for adventure, questioning witnesses and to investigation of field experiment involving highly qualified specialists. The use of the proposed program will also help to improve the quality of autotechnical accident expertise that occurred at night-time, also by increasing the objectivity of expert decisions.

  10. Perception and description of premium beers by panels with different degrees of product expertise

    DEFF Research Database (Denmark)

    Giacalone, Davide; Ribeiro, Leticia Machado; Frøst, Michael Bom

    2016-01-01

    of consumers, classified according to their self-assessed product expertise into “Novices” (N = 14) and “Enthusiasts” (N = 26). The sensory panel at a large brewery, and a group of master brewers constituted the third panel (“Experts”, N = 15). The Napping® data from the three panels were digitalized using......The present study compares subjects with varying degrees of product expertise with regards to their ability to provide a sensory profile of beverages. Eight premium beers were evaluated by three different panels using a Napping® test, followed by a descriptive task. Two panels were constituted...... a coordinate system, whereas attributes were entered separately and treated as frequency table crossing products and attributes. The position data were analyzed by Hierarchical Multiple Factor Analysis (HMFA). Partial Least Squares-Discriminant Analysis (PLS-DA) was used to test differences between the three...

  11. Defining Pedagogic Expertise: Students and New Lecturers as Co-Developers in Learning and Teaching

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    Camille Kandiko Howson

    2016-09-01

    Full Text Available This study evaluated a model of student-engaged educational development. Despite widespread commitment to student engagement across many institutional activities, student participation as partners with faculty in teaching and learning enhancement has been identified as a threshold concept for educational development. This study sought not only to establish a student-engaged model of teaching observation in a United Kingdom context, but also to critically examine the ways in which student, faculty, and developer participants conceptualise student expertise in relation to learning and teaching. Concept-map mediated interviews with students and faculty in humanities and healthcare subjects elicited conceptions and comparative knowledge structures of pedagogical intelligence for the purposes of enhancing teaching practice. The outcomes of the study are considered in relation to the theorisation of student engagement with particular focus on perspectives of expertise and power relations.

  12. Respiratory effects of particulate matter air pollution: studies on diesel exhaust, road tunnel, subway and wood smoke exposure in human subjects

    Energy Technology Data Exchange (ETDEWEB)

    Sehlstedt, Maria

    2011-07-01

    Background: Ambient air pollution is associated with adverse health effects, but the sources and components, which cause these effects is still incompletely understood. The aim of this thesis was to investigate the pulmonary effects of a variety of common air pollutants, including diesel exhaust, biomass smoke, and road tunnel and subway station environments. Healthy non-smoking volunteers were exposed in random order to the specific air pollutants and air/control, during intermittent exercise, followed by bronchoscopy. Methods and results: In study I, exposures were performed with diesel exhaust (DE) generated at transient engine load and air for 1 hour with bronchoscopy at 6 hours post-exposure. Immunohistochemical analyses of bronchial mucosal biopsies showed that DE exposure significantly increased the endothelial adhesion molecule expression of p-selectin and VCAM-1, together with increased bronchoalveolar lavage (BAL) eosinophils. In study II, the subjects were exposed for 1 hour to DE generated during idling with bronchoscopy at 6 hours. The bronchial mucosal biopsies showed significant increases in neutrophils, mast cells and lymphocytes together with bronchial wash neutrophils. Additionally, DE exposure significantly increased the nuclear translocation of the aryl hydrocarbon receptor (AhR) and phosphorylated c-jun in the bronchial epithelium. In contrast, the phase II enzyme NAD(P)H-quinone oxidoreductase 1 (NQO1) decreased after DE. In study III, the 2-hour exposures took place in a road tunnel with bronchoscopy 14 hours later. The road tunnel exposure significantly increased the total numbers of lymphocytes and alveolar macrophages in BAL, whereas NK cell and CD56+/T cell numbers significantly decreased. Additionally, the nuclear expression of phosphorylated c-jun in the bronchial epithelium was significantly increased after road tunnel exposure. In study IV, the subjects were exposed to metal-rich particulate aerosol for 2 hours at a subway station

  13. Do CS-US pairings actually matter? A within-subject comparison of instructed fear conditioning with and without actual CS-US pairings.

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    An K Raes

    Full Text Available Previous research showed that instructions about CS-US pairings can lead to fear of the CS even when the pairings are never presented. In the present study, we examined whether the experience of CS-US pairings adds to the effect of instructions by comparing instructed conditioning with and without actual CS-US pairings in a within-subject design. Thirty-two participants saw three fractals as CSs (CS(+1, CS(+2, CS(- and received electric shocks as USs. Before the start of a so-called training phase, participants were instructed that both CS(+1 and CS(+2 would be followed by the US, but only CS(+1 was actually paired with the US. The absence of the US after CS(+2 was explained in such a way that participants would not doubt the instructions about the CS(+2-US relation. After the training phase, a test phase was carried out. In this phase, participants expected the US after both CS(+s but none of the CS(+s was actually paired with the US. During test, self-reported fear was initially higher for CS(+1 than for CS(+2, which indicates that the experience of actual CS-US pairings adds to instructions about these pairings. On the other hand, the CS(+s elicited similar skin conductance responses and US expectancies. Theoretical and clinical implications are discussed.

  14. Benefits of multi-modal fusion analysis on a large-scale dataset: life-span patterns of inter-subject variability in cortical morphometry and white matter microstructure.

    Science.gov (United States)

    Groves, Adrian R; Smith, Stephen M; Fjell, Anders M; Tamnes, Christian K; Walhovd, Kristine B; Douaud, Gwenaëlle; Woolrich, Mark W; Westlye, Lars T

    2012-10-15

    Neuroimaging studies have become increasingly multimodal in recent years, with researchers typically acquiring several different types of MRI data and processing them along separate pipelines that provide a set of complementary windows into each subject's brain. However, few attempts have been made to integrate the various modalities in the same analysis. Linked ICA is a robust data fusion model that takes multi-modal data and characterizes inter-subject variability in terms of a set of multi-modal components. This paper examines the types of components found when running Linked ICA on a large magnetic resonance imaging (MRI) morphometric and diffusion tensor imaging (DTI) data set comprising 484 healthy subjects ranging from 8 to 85 years of age. We find several strong global features related to age, sex, and intracranial volume; in particular, one component predicts age to a high accuracy (r=0.95). Most of the remaining components describe spatially localized modes of variability in white or gray matter, with many components including both tissue types. The multimodal components tend to be located in anatomically-related brain areas, suggesting a morphological and possibly functional relationship. The local components show relationships between surface-based cortical thickness and arealization, voxel-based morphometry (VBM), and between three different DTI measures. Further, we report components related to artifacts (e.g. scanner software upgrades) which would be expected in a dataset of this size. Most of the 100 extracted components showed interpretable spatial patterns and were found to be reliable using split-half validation. This work provides novel information about normal inter-subject variability in brain structure, and demonstrates the potential of Linked ICA as a feature-extracting data fusion approach across modalities. This exploratory approach automatically generates models to explain structure in the data, and may prove especially powerful for large

  15. Especialistas psi em ação: sobre a distribuição de expertises num reality show.

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    Marcia Moraes

    2014-05-01

    Full Text Available O objetivo deste artigo é discutir a articulação entre as práticas dos especialistas psis e as modulações da intimidade a partir da sua exposição na mídia através do blog de um programa de televisão no formato de reality show. Foram analisados comentários dos seguidores do blog e cinco entrevistas semi-estruturadas com participantes do programa. Inspiradas em autores como Latour (2008 e Despret (2011, as pesquisadoras problematizam a distribuição da expertise a partir da análise do programa exibido no blog. Os resultados indicam que a distribuição da expertise ativa a todos que se articulam no dispositivo produzindo modos de subjetivar psicologizados. // Psi experts in action: on the distribution of expertise in a reality show. This paper aims to discuss the relationship between practices of psi experts and modulations of intimacy based on its exposure on a reality show microblog. Inspired by authors like Latour (2008 and Despret (2011, the researchers put in question the distribution of expertise in the reality show microblog. The results indicate that the distribution of expertise enables people who are articulated in the reality show enacting psychologized subjectivities.

  16. Expertise and governance of climate change; Expertise et gouvernance du changement climatique

    Energy Technology Data Exchange (ETDEWEB)

    Encinas de Munagorri, R.; Colson, R. [Nantes Univ. (France); Denis, B. [Saint-Louis Univ. and Free Univ., Brussels (Belgium); Leclerc, O. [Paris Ouest-Nanterre La Defense Univ. (France); Rousseau, S. [CNRS, Lab. Droit et Changement Social (France); Torre-Schaub, M. [CNRS, Lab. Institutions et Dynamiques Historiques de l' Economie, Ecole Normale Superieure, Cachan (France)

    2009-07-01

    Global warming has become in few years a prominent problem which requires the implementation of a world governance to be solved. However, the share of human activities in the global warming phenomenon and the actions susceptible to mitigate the greenhouse gases emission generate scientifical, political and legal conflicts at the same time. Assessing the taking into account of climate change by international institutions raises several questions. By what process a true fact can become established at the world scale? Are experts free or constrain by procedure rules? How to regulate the worldwide carbon trade? Is the governance requirement foreseen in international systems respected by decision making practices? How to explain experts' omnipresence in the observance mechanisms of climate change treaties? Is their influence determining, at the international and internal scale, in the elaboration of a climate law? These questions, analyzed by researchers in law and political science, are indissociable of method stakes with an inter-disciplinary horizon. This book, result of a collective work, is not limited to a description of standards and actors' practices in force. Its ambition is to apprehend law, science and politics in their interactions. Climate change is an appropriate topic to think about the links between the different scientific disciplines. The book concludes with a prospective about the contribution of laws analysis to expertise which involves the dogmatic, realistic and epistemologic aspects. (J.S.)

  17. Surgical expertise in neurosurgery: integrating theory into practice.

    Science.gov (United States)

    Gélinas-Phaneuf, Nicholas; Del Maestro, Rolando F

    2013-10-01

    : The development of technical skills is a major goal of any neurosurgical training program. Residency programs in North America are focused on achieving an adequate level of training to produce technically competent surgeons. The training requirements and educational environments needed to produce expert surgeons are incompletely understood. This review explores the theoretical implications of training technical skills to expertise rather than competency in a complex field such as neurosurgery. First, the terms technical expertise and technical competency are defined. Definitions of these qualities are lacking in all surgical specialties. Second, the assessment of technical skills of neurosurgeons are investigated using an expert performance approach. This approach entails the design of tasks that can capture the level of expertise in a reproducible manner. One method to accomplish this involves the use of novel simulators with validated performance metrics. Third, the training of technical skills using simulation is studied in the optic of developing training curricula that would target the development of expertise rather than simple competency. Such curricula should include objective assessments of technical skills, appropriate feedback, and a distributed schedule of deliberate practice. Implementing a focus on the development of expertise rather than simple competency in surgical performance will lead to innovative developments in the field of neurosurgical education. Novel technologies, such as simulation, will play important roles in the training of future expert surgeons, and focused technical skills curricula with a sound theoretical basis should guide the development of all such programs.

  18. Expertise and talent development in rugby refereeing: an ethnographic enquiry.

    Science.gov (United States)

    Ollis, Stewart; Macpherson, Alan; Collins, Dave

    2006-03-01

    We explore how expertise is obtained in the domain of rugby refereeing. The research data are qualitative and are drawn from an 18 month period working in collaboration with the Rugby Football Union Elite Referee Unit. Adopting an ethnographic mode of enquiry, the study combined long-term participant observation with in-depth interviewing, indirect observations and the collection of artefacts including existing protocol, coach feedback forms and strategic reports. The diversity of methodologies allowed us to examine how expertise is developed across various domains of analysis, including the intrapersonal, interpersonal, group and social perspectives. Building on expertise studies in "deliberate practice", further prerequisites for expertise, at least in this domain and with these participants, incorporated "deliberate experience" and "transfer of skills". Additionally, a key issue in the findings concerns a shift from "descriptive" towards a "non-linear processes"-oriented model of development. We conclude by identifying opportunities and limitations associated with the adoption of ethnography as a method for studying expertise.

  19. OPTIMIZATION OF SCIENTIFIC AND TECHNICAL EXPERTISE OF THE APPLICATIONS FOR STATE SUBSIDIES

    Directory of Open Access Journals (Sweden)

    S. Yu. Tuzova

    2016-01-01

    Full Text Available The main aspects of the evaluation of projects for the grant of Federal Target Program «Researches and developments in priority directions of scientific and technological complex of Russia for 2014-2020» is discussed. This subject is very relevant, because the efficiency of scientific and technical expertise is a guarantee of the eff ectiveness of innovative projects management. This is particularly important for the projects, which have significant practical orientation and being competitive in the international scientific and technical level.The purpose of this article is a justification of importance of improvement of technologies of information support of experts. These technologies allow to draw the attention of the expert to a number of discrepancies in the documentation, to quickly process the large volume of information at various scientometric databases, to reduce the manhours of the expert per project and to increase efficiency of scientific and technical expertise.Advantages and disadvantages of the use of machine analysis of keyword and semantic analysis of documents during the scientific and technical expertise have been described. The criteria for peer review as a quality research project; qualifications, work experience, academic achievements of the project implementing team and instrument base; the potential Bidder; financial support of the project. Various criteria for analysis of the project (quality of the research project, qualifications, work experience, academic achievements of the project implementing team and their instrument base, the potential and the project financial support are considered.Conclusions. First, use of modern information technology in scientific and technical expertise allows to expand the information field and an expert to carry out a deeper analysis of projects. Secondly, the stocktaking of the advantages and disadvantages of using machine analysis for keywords and semantic analysis of the documents

  20. Perception of recorded singing voice quality and expertise: cognitive linguistics and acoustic approaches.

    Science.gov (United States)

    Morange, Séverine; Dubois, Danièle; Fontaine, Jean-Marc

    2010-07-01

    The objective of the present pluridisciplinary study was to contribute to determine how a diversity of audience differently appreciates several versions resulting from different "restoration" treatments of one single original lyrical recording. We present here a joint analysis coupling psychological and linguistic analyses with acoustic descriptions on a unique research object: a Caruso's piece of song diversely remastered on commercial CDs. Thirty-two subjects were selected contrasted on age ("younger than 30 years" and "older than 60 years") related with their different experience of earlier technical recording devices (rendering through devices such as radio, 78rpm records, CD...) and on expertise concerning musical acoustics (acousticians and/or musicians vs ordinary music lovers). Eleven excerpts of reediting of an opera record interpreted by Caruso were selected from what could found on the market. The listening protocol involved a free categorization task and the selection of excerpts on preference judgments. Each task involved subjects' free commentaries about their choices as a joint output from psychological processing. A cluster analysis scaffold by a psycholinguistic processing of the verbal comments of the categories allowed to identify both commonalities and differences in groupings excerpts by the different groups of the subjects, along a diversity of criteria, varying according to age and expertise. Each excerpt can therefore be characterized both according to psychological and to acoustic criteria. This study has enabled us to develop the idea that a lyric voice is a multifaced object (cultural, esthetic, technical, physical), acoustic parameters being linked to the various sensory experiences and expertises of appraisers. Such pluridisciplinary research and the coupling of the correlated multiplicity of methodologies we developed acknowledge for a better understanding of listening practices and music-lover assessments here concerned with a

  1. An Abstraction Hierarchy based mobile PC display design in NPP maintenance considering the level of expertise

    Energy Technology Data Exchange (ETDEWEB)

    Yim, Ho Bin [Department of Nuclear and Quantum Engineering, KAIST, Daejeon 305-701 (Korea, Republic of); Kim, In [Department of Energy, Environment, Water and Sustainability, KAIST, Daejeon 305-701 (Korea, Republic of); Seong, Poong Hyun, E-mail: phseong@kaist.ac.k [Department of Nuclear and Quantum Engineering, KAIST, Daejeon 305-701 (Korea, Republic of)

    2011-05-15

    Research highlights: Six levels of Abstraction Hierarchy based information for maintenance were proposed. Errors and workload with AH based information display were reduced for LL subjects. Design concerns discovered can be applied to practical use of mobile maintenance aids. - Abstract: Recently, the importance of effective maintenance in nuclear power plants (NPPs) has been emphasized and research into effective maintenance by adopting mobile maintenance aids (MMAs) have been attempted. For improved and effective use of an MMA display design method based on the hierarchy is proposed and its design considerations are discussed in this study. Six levels of hierarchy are proposed in this paper to classify the maintenance information. By classifying and organizing maintenance information using the hierarchy, maintenance information can be used effectively by users with either high or low levels of expertise. When information classification has been finished, the information for MMA design is selected and designed. With the considerations of MMA design analysis and guidelines, a hierarchy-based MMA is designed for the maintenance tasks. An experiment is conducted using the hierarchy-based MMA in order to estimate the effectiveness of the proposed method for the maintenance tasks and to identify design considerations to enhance the proposed MMAs. The result indicated that a hierarchy-based manual was more effective than a conventional manual in terms of task completion time and number of errors. The workload for the hierarchy-based manual was estimated less than the conventional manual for subjects with low level of expertise. As the level of expertise increases, subjects tended to follow more abstract information while the number of navigations decreased. It is believed that when mobile devices become pervasive in NPP maintenance fields, the hierarchy model applied MMAs can be used as an effective maintenance supporting tool.

  2. Perceptual-cognitive expertise in elite volleyball players.

    Science.gov (United States)

    Alves, Heloisa; Voss, Michelle W; Boot, Walter R; Deslandes, Andrea; Cossich, Victor; Salles, Jose Inacio; Kramer, Arthur F

    2013-01-01

    The goal of the current study was to investigate the relationship between sport expertise and perceptual and cognitive skills, as measured by the component skills approach. We hypothesized that athletes would outperform non-athlete controls in a number of perceptual and cognitive domains and that sport expertise would minimize gender differences. A total of 154 individuals (87 professional volleyball players and 67 non-athlete controls) participated in the study. Participants performed a cognitive battery, which included tests of executive control, memory, and visuo-spatial attention. Athletes showed superior performance speed on three tasks (two executive control tasks and one visuo-spatial attentional processing task). In a subset of tasks, gender effects were observed mainly in the control group, supporting the notion that athletic experience can reduce traditional gender effects. The expertise effects obtained substantiate the view that laboratory tests of cognition may indeed enlighten the sport-cognition relationship.

  3. Perceptual-cognitive expertise in elite volleyball players

    Directory of Open Access Journals (Sweden)

    Heloisa eAlves

    2013-03-01

    Full Text Available The goal of the current study was to investigate the relationship between sport expertise and perceptual and cognitive skills, as measured by the component skills approach. We hypothesized that athletes would outperform non-athlete controls in a number of perceptual and cognitive domains and that sport expertise would minimize gender differences. A total of 154 individuals (87 professional volleyball players and 67 non-athlete controls participated in the study. Participants performed a cognitive battery, which included tests of executive control, memory, and visuo-spatial attention. Athletes showed superior performance speed on three tasks (two executive control tasks and one visuo-spatial attentional processing task. In a subset of tasks, gender effects were observed mainly in the control group, supporting the notion that athletic experience can reduce traditional gender effects. The expertise effects obtained substantiate the view that laboratory tests of cognition may indeed enlighten the sport-cognition relationship.

  4. Defining a Profession: The Role of Knowledge and Expertise

    Directory of Open Access Journals (Sweden)

    Mike Saks

    2012-06-01

    Full Text Available The paper highlights the importance of resurrecting the debate about how to define a profession. The drive to define a profession is traced back to the taxonomic approach – encompassing the work of trait and functionalist writers – in which professions were seen as possessing unique and positive characteristics, including distinctive knowledge and expertise. A range of critical challenges to this approach are then considered, particularly as they relate to the role of knowledge and expertise in defining a profession, covering interactionism, Marxism, Foucauldianism and discourse analysis. However, the most effective challenge to the taxonomic approach is considered to be the neo-Weberian perspective based on a less broadly assumptive and more analytically useful definition of a profession centered on exclusionary closure. With reference to case studies, the relative merits of neo-Weberianism compared to taxonomic and other approaches are examined in relation to the role of knowledge and expertise and delineating professional boundaries.

  5. Current expertise location by exploiting the dynamics of knowledge

    Directory of Open Access Journals (Sweden)

    Josef Nozicka

    2012-10-01

    Full Text Available Systems for expertise location are either very expensive in terms of the costs of maintenance or they tend to become obsolete or incomplete during the time. This article presents a new approach to knowledge mapping/expertise location allowing reducing the costs of knowledge mapping by maintaining the accuracy of the knowledge map. The efficiency of the knowledge map is achieved by introducing the knowledge estimation measures analysing the dynamics of knowledge of company employees and their textual results of work. Finding an expert with most up-to date knowledge is supported by focusing publishing history analysis. The efficiency of proposed measures within various timeframes of publishing history is evaluated by evaluation method introduced within the article. The evaluation took place in the environment of a middle-sized software company allowing seeing directly a practical usability of the expertise location technique. The results form various implications deployment of knowledge map within the company.

  6. The effect of the 4MAT learning model on the achievement and motivation of 7th grade students on the subject of particulate nature of matter and an examination of student opinions on the model

    Science.gov (United States)

    Aktas, İdris; Bılgın, İbrahim

    2015-01-01

    Background:Many researchers agree that students, especially primary students, have learning difficulties on the 'Particulate Nature of Matter' unit. One reason for this difficulty is not considering individual differences for teaching science. In 4MAT model learning, environment is arranged according to individual differences. Purpose:The purpose of this study is to examine (1) the effects of the 4MAT learning model on the7th grade students' academic achievement and motivation on the 'Particulate Nature of Matter' unit and (2) identify student opinions on the 4MAT model. Sample:The sample consists of 235 students (115 experimental, 120 control) in Turkey. Design and methods:Experimental groups were instructed with the 4MAT model while control groups were instructed with a traditional method. Achievement Test (AchToM) and Motivation Scale (MotScl) were administered to students as pre- and post-tests. Moreover, the opinions of students in the experimental groups on the 4MAT model were ascertained through open-ended questions after the application. Results:According to independent t-test results, statistical difference in favour of the experimental groups was detected between the post-AchToM (ES = 1.43; p motivation and participation in the lesson, lessons are more amusing and enjoyable, and the self-confidence of the students increases. Besides these positive opinions, however, a few students stated that the method took too much time, they were not motivated and it did not help them in understanding the subject. Conclusions:The 4MAT model is more effective than traditional method in terms of increasing achievement and motivation. The model takes all learners into account. Thus, the teacher or educator should use the 4MAT model to ensure all students' learning in their classroom.

  7. A Review of Expertise and Judgment Processes for Risk Estimation

    Energy Technology Data Exchange (ETDEWEB)

    R. L. Boring

    2007-06-01

    A major challenge of risk and reliability analysis for human errors or hardware failures is the need to enlist expert opinion in areas for which adequate operational data are not available. Experts enlisted in this capacity provide probabilistic estimates of reliability, typically comprised of a measure of central tendency and uncertainty bounds. While formal guidelines for expert elicitation are readily available, they largely fail to provide a theoretical basis for expertise and judgment. This paper reviews expertise and judgment in the context of risk analysis; overviews judgment biases, the role of training, and multivariate judgments; and provides guidance on the appropriate use of atomistic and holistic judgment processes.

  8. Exploring the influence of cultural familiarity and expertise on neurological responses to music.

    Science.gov (United States)

    Demorest, Steven M; Morrison, Steven J

    2003-11-01

    Contemporary music education in many countries has begun to incorporate not only the dominant music of the culture, but also a variety of music from around the world. Although the desirability of such a broadened curriculum is virtually unquestioned, the specific function of these musical encounters and their potential role in children's cognitive development remain unclear. We do not know if studying a variety of world music traditions involves the acquisition of new skills or an extension and refinement of traditional skills long addressed by music teachers. Is a student's familiarity with a variety of musical traditions a manifestation of a single overarching "musicianship" or is knowledge of these various musical styles more similar to a collection of discrete skills much like learning a second language? Research on the comprehension of spoken language has disclosed a neurologically distinct response among subjects listening to their native language rather than an unfamiliar language. In a recent study comparing Western subjects' responses to music of their native culture and music of an unfamiliar culture, we found that subjects' activation did not differ on the basis of the cultural familiarity of the music, but on the basis of musical expertise. We discuss possible interpretations of these findings in relation to the concept of musical universals, cross-cultural stimulus characteristics, cross-cultural judgment tasks, and the influence of musical expertise. We conclude with suggestions for future research.

  9. Relationship between orthodontic expertise and perception of need for orthodontic treatment for mandibular protrusion in Japan.

    Science.gov (United States)

    Murakami, Takashi; Fujii, Akihito; Kawabata, Yuya; Takakura, Hiroaki; Yamaue, Rie; Balam, Tarek Abdulsamad; Kuroda, Shingo; Kawanabe, Noriaki; Kamioka, Hiroshi; Yamashiro, Takashi

    2013-01-01

    The aims of this study were to investigate how the Peer Assessment Rating (PAR index) predicts the perceived need for orthodontic treatment of mandibular protrusion in Japanese subjects, and to elucidate whether the perceived need for treatment was affected by the raters' orthodontic expertise. The subjects were 110 dental students and 32 orthodontists. We showed them casts of 10 untreated mandibular protrusion cases and gave them a questionnaire in which they had to describe their perceptions of the orthodontic treatment needs using a 10-point visual analog scale (VAS). The PAR index was used for cast evaluation. The PAR index scores showed significant correlations with the VAS scores. In casts with a low PAR score, there were no differences in the VAS scores between orthodontists and students. In casts with a PAR score greater than 23, the orthodontists perceived a significantly greater treatment need than did the students;for scores of 22, 28, and 29, students who had received orthodontic treatment themselves were more likely to perceive the treatment need. The PAR index is a good clinical predictor for assessing the perceived treatment needs for mandibular protrusion. Perception of the need for orthodontic treatment for mandibular protrusion depended on the degree of orthodontic expertise in Japanese subjects.

  10. Cosmetology. Subject Matters, Volume 3, No. 3.

    Science.gov (United States)

    Reese, Susan

    2001-01-01

    "The Beauty of Cosmetology" discusses the employment outlook for cosmetologists. "High School Cosmetology with Great Style" describes the academic and career cosmetology curriculum at Great Oaks Institute of Technology and Career Development (Ohio). "More than Skin Deep" explores the job shadowing program at the American Academy of Hair Design.…

  11. Digital Literacy and Subject Matter Learning

    DEFF Research Database (Denmark)

    Levinsen, Karin; Sørensen, Birgitte Holm

    2015-01-01

    It is generally agreed that learners need to acquire digital literacy in order to be able to act as citizens, employees and entrepreneurs in an increasingly digitalized environment. It is also generally agreed that the educational system has to be responsible for educating towards digital literacy....... However, there is no shared conception of the scope and meaning of digital literacy. The overall picture shows two main approaches: The first aims at digital literacy in the sense of Buildung (general education) while the second addresses a wide range of specific skills and competences: From basic...... computer skills over multimodal analysis to social conventions for behavior in online environments. Consequently designs for teaching and learning that aim at learners acquiring digital literacy and the related learning objectives appear as weak defined. According to the Danish Ministry of Education Shared...

  12. Language and Composition: Does the Subject Matter?

    Science.gov (United States)

    Alexis, Gerhard T.

    1968-01-01

    Attempts to combine language and composition in the freshman English course at Gustavus Adolphus College (St. Peter, Minnesota) should interest all teachers of English. One project utilized a single key word for several assignments. Students were asked to (1) think through the meaning of the word for a week and write definitions and associations,…

  13. Meeting the Challenge: Teaching Sensitive Subject Matter

    Science.gov (United States)

    Crosby, Dorian B.

    2012-01-01

    When teaching diversity courses that discuss sensitive issues, such as racial, gender, sexuality, religious, and ethnic discrimination, it is possible to encounter student resistance, which can subsequently prevent students from comprehending the content. While teaching an introductory course on African American history in a Black Studies…

  14. When music and long-term memory interact: effects of musical expertise on functional and structural plasticity in the hippocampus.

    Science.gov (United States)

    Groussard, Mathilde; La Joie, Renaud; Rauchs, Géraldine; Landeau, Brigitte; Chételat, Gaël; Viader, Fausto; Desgranges, Béatrice; Eustache, Francis; Platel, Hervé

    2010-10-05

    The development of musical skills by musicians results in specific structural and functional modifications in the brain. Surprisingly, no functional magnetic resonance imaging (fMRI) study has investigated the impact of musical training on brain function during long-term memory retrieval, a faculty particularly important in music. Thus, using fMRI, we examined for the first time this process during a musical familiarity task (i.e., semantic memory for music). Musical expertise induced supplementary activations in the hippocampus, medial frontal gyrus, and superior temporal areas on both sides, suggesting a constant interaction between episodic and semantic memory during this task in musicians. In addition, a voxel-based morphometry (VBM) investigation was performed within these areas and revealed that gray matter density of the hippocampus was higher in musicians than in nonmusicians. Our data indicate that musical expertise critically modifies long-term memory processes and induces structural and functional plasticity in the hippocampus.

  15. When music and long-term memory interact: effects of musical expertise on functional and structural plasticity in the hippocampus.

    Directory of Open Access Journals (Sweden)

    Mathilde Groussard

    Full Text Available The development of musical skills by musicians results in specific structural and functional modifications in the brain. Surprisingly, no functional magnetic resonance imaging (fMRI study has investigated the impact of musical training on brain function during long-term memory retrieval, a faculty particularly important in music. Thus, using fMRI, we examined for the first time this process during a musical familiarity task (i.e., semantic memory for music. Musical expertise induced supplementary activations in the hippocampus, medial frontal gyrus, and superior temporal areas on both sides, suggesting a constant interaction between episodic and semantic memory during this task in musicians. In addition, a voxel-based morphometry (VBM investigation was performed within these areas and revealed that gray matter density of the hippocampus was higher in musicians than in nonmusicians. Our data indicate that musical expertise critically modifies long-term memory processes and induces structural and functional plasticity in the hippocampus.

  16. When Matter Matters

    CERN Document Server

    Easson, Damien A.; Vikman, Alexander

    2013-07-10

    We study a recently proposed scenario for the early universe: Subluminal Galilean Genesis. We prove that without any other matter present in the spatially flat Friedmann universe, the perturbations of the Galileon scalar field propagate with a speed at most equal to the speed of light. This proof applies to all cosmological solutions -- to the whole phase space. However, in a more realistic situation, when one includes any matter which is not directly coupled to the Galileon, there always exists a region of phase space where these perturbations propagate superluminally, indeed with arbitrarily high speed. We illustrate our analytic proof with numerical computations. We discuss the implications of this result for the possible UV completion of the model.

  17. Electrical Neuroimaging of Music Processing Reveals Mid-Latency Changes with Level of Musical Expertise.

    Science.gov (United States)

    James, Clara E; Oechslin, Mathias S; Michel, Christoph M; De Pretto, Michael

    2017-01-01

    This original research focused on the effect of musical training intensity on cerebral and behavioral processing of complex music using high-density event-related potential (ERP) approaches. Recently we have been able to show progressive changes with training in gray and white matter, and higher order brain functioning using (f)MRI [(functional) Magnetic Resonance Imaging], as well as changes in musical and general cognitive functioning. The current study investigated the same population of non-musicians, amateur pianists and expert pianists using spatio-temporal ERP analysis, by means of microstate analysis, and ERP source imaging. The stimuli consisted of complex musical compositions containing three levels of transgression of musical syntax at closure that participants appraised. ERP waveforms, microstates and underlying brain sources revealed gradual differences according to musical expertise in a 300-500 ms window after the onset of the terminal chords of the pieces. Within this time-window, processing seemed to concern context-based memory updating, indicated by a P3b-like component or microstate for which underlying sources were localized in the right middle temporal gyrus, anterior cingulate and right parahippocampal areas. Given that the 3 expertise groups were carefully matched for demographic factors, these results provide evidence of the progressive impact of training on brain and behavior.

  18. Electrical Neuroimaging of Music Processing Reveals Mid-Latency Changes with Level of Musical Expertise

    Directory of Open Access Journals (Sweden)

    Clara E. James

    2017-11-01

    Full Text Available This original research focused on the effect of musical training intensity on cerebral and behavioral processing of complex music using high-density event-related potential (ERP approaches. Recently we have been able to show progressive changes with training in gray and white matter, and higher order brain functioning using (fMRI [(functional Magnetic Resonance Imaging], as well as changes in musical and general cognitive functioning. The current study investigated the same population of non-musicians, amateur pianists and expert pianists using spatio-temporal ERP analysis, by means of microstate analysis, and ERP source imaging. The stimuli consisted of complex musical compositions containing three levels of transgression of musical syntax at closure that participants appraised. ERP waveforms, microstates and underlying brain sources revealed gradual differences according to musical expertise in a 300–500 ms window after the onset of the terminal chords of the pieces. Within this time-window, processing seemed to concern context-based memory updating, indicated by a P3b-like component or microstate for which underlying sources were localized in the right middle temporal gyrus, anterior cingulate and right parahippocampal areas. Given that the 3 expertise groups were carefully matched for demographic factors, these results provide evidence of the progressive impact of training on brain and behavior.

  19. France bundles knowledge and expertise in intelligent energy networks; Frankrijk bundelt kennis en expertise in intelligente energienetwerken

    Energy Technology Data Exchange (ETDEWEB)

    Van Kooij, E.

    2012-03-15

    The networks that provides cities, office buildings, houses, cars and mobile phones with energy, is expected in the coming years to be digitized. The French innovation cluster Systematic has recently taken the initiative to set up a knowledge partnership which should connect knowledge and expertise with regard to future smart grids [Dutch] Het netwerk dat onze steden, kantoren, huizen, auto's en mobieltjes van energie voorziet, zal naar verwachting in de komende jaren een digitalisering ondergaan. Het Franse innovatiecluster Systematic heeft onlangs het initiatief genomen een samenwerkingsverband op te richten die kennis en expertise op het gebied van toekomstige intelligente energienetwerken bij elkaar brengt.

  20. Social networks and expertise development for Australian breast radiologists.

    Science.gov (United States)

    Taba, Seyedamir Tavakoli; Hossain, Liaquat; Willis, Karen; Lewis, Sarah

    2017-02-11

    In this study, we explore the nexus between social networks and expertise development of Australian breast radiologists. Background literature has shown that a lack of appropriate social networks and interaction among certain professional group(s) may be an obstacle for knowledge acquisition, information flow and expertise sharing. To date there have not been any systematic studies investigating how social networks and expertise development are interconnected and whether this leads to improved performance for breast radiologists. This study explores the value of social networks in building expertise alongside with other constructs of performance for the Australian radiology workforce using semi-structured in-depth interviews with 17 breast radiologists. The findings from this study emphasise the influences of knowledge transfer and learning through social networks and interactions as well as knowledge acquisition and development through experience and feedback. The results also show that accessibility to learning resources and a variety of timely feedback on performance through the information and communication technologies (ICT) is likely to facilitate improved performance and build social support. We argue that radiologists' and, in particular, breast radiologists' work performance, needs to be explored not only through individual numerical characteristics but also by analysing the social context and peer support networks in which they operate and we identify multidisciplinary care as a core entity of social learning.

  1. Revisiting the Role of the Fusiform Face Area in Expertise.

    Science.gov (United States)

    Bilalić, Merim

    2016-09-01

    The fusiform face area (FFA) is considered to be a highly specialized brain module because of its central importance for face perception. However, many researchers claim that the FFA is a general visual expertise module that distinguishes between individual examples within a single category. Here, I circumvent the shortcomings of some previous studies on the FFA controversy by using chess stimuli, which do not visually resemble faces, together with more sensitive methods of analysis such as multivariate pattern analysis. I also extend the previous research by presenting chess positions, complex scenes with multiple objects, and their interrelations to chess experts and novices as well as isolated chess objects. The first experiment demonstrates that chess expertise modulated the FFA activation when chess positions were presented. In contrast, single chess objects did not produce different activation patterns among experts and novices even when the multivariate pattern analysis was used. The second experiment focused on the single chess objects and featured an explicit task of identifying the chess objects but failed to demonstrate expertise effects in the FFA. The experiments provide support for the general expertise view of the FFA function but also extend the scope of our understanding about the function of the FFA. The FFA does not merely distinguish between different exemplars within the same category of stimuli. More likely, it parses complex multiobject stimuli that contain numerous functional and spatial relations.

  2. 7 CFR 205.504 - Evidence of expertise and ability.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false Evidence of expertise and ability. 205.504 Section 205.504 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (CONTINUED) ORGANIC FOODS PRODUCTION ACT PROVISIONS NATIONAL ORGANIC...

  3. Explaining Differences in Scientific Expertise Use: The Politics of Pesticides

    Directory of Open Access Journals (Sweden)

    Dovilė Rimkutė

    2015-03-01

    Full Text Available Despite the growing importance of EU regulatory agencies in European decision-making, academic literature is missing a systematic explanation of how regulatory agencies actually contend with their core tasks of providing scientific advice to EU institutions. The article contributes to the theoretical explanation of when and under what conditions different uses of scientific expertise prevail. In particular, it focuses on theoretical explanations leading to strategic substantiating use of expertise followed by an empirical analysis of single case research. Substantiating expertise use refers to those practices in which an organisation seeks to promote and justify its predetermined preferences, which are based on certain values, political or economic interests. Empirical findings are discussed in the light of the theoretical expectations derived by streamlining and combining the main arguments of classical organisational and institutional theories and recent academic research. Process-tracing techniques are applied to investigate the process by which an EU regulation restricting the use of neonicotinoid pesticides (European Commission, 2013 was developed. The empirical analysis combines a variety of data sources including official documents, press releases, scientific outputs, and semi-structured interviews with the academic and industry experts involved in the process. The study finds that the interaction between high external pressure and high internal capacity leads to the strategic substantiating use of expertise, in which scientific evidence is used to promote the inclinations of actors upon which the agency depends most.

  4. The Role of Human Expertise in Enhancing Data Mining

    Science.gov (United States)

    Kaddouri, Abdelaaziz

    2011-01-01

    Current data mining (DM) technology is not domain-specific and therefore rarely generates reliable, business actionable knowledge that can be used to improve the effectiveness of the decision-making process in the banking industry. DM is mainly an autonomous, data-driven process with little focus on domain expertise, constraints, or requirements…

  5. College Students Solving Chemistry Problems: A Theoretical Model of Expertise

    Science.gov (United States)

    Taasoobshirazi, Gita; Glynn, Shawn M.

    2009-01-01

    A model of expertise in chemistry problem solving was tested on undergraduate science majors enrolled in a chemistry course. The model was based on Anderson's "Adaptive Control of Thought-Rational" (ACT-R) theory. The model shows how conceptualization, self-efficacy, and strategy interact and contribute to the successful solution of quantitative,…

  6. Flight nursing expertise: towards a middle-range theory

    Science.gov (United States)

    Reimer, Andrew P.; Moore, Shirley M.

    2010-01-01

    Aim This paper presents a middle-range Theory of Flight Nursing Expertise. Background Rotary-wing (helicopter) medical transport has grown rapidly in the USA since its introduction, particularly during the past 5 years. Patients once considered too sick to transport are now being transported more frequently and over longer distances. Many limitations are imposed by the air medical transport environment and these require nurses to alter their practice. Data sources A literature search was conducted using Pubmed, Medline, CINAHL, secondary referencing and an Internet search from 1960 to 2008 for studies related to the focal concepts in flight nursing. Discussion The middle-range Theory of Flight Nursing Expertise is composed of nine concepts (experience, training, transport environment of care, psychomotor skills, flight nursing knowledge, cue recognition, pattern recognition, decision-making and action) and their relationships. Five propositions describe the relationships between those concepts and how they apply to flight nursing expertise. Implications for nursing After empirical testing, this theory may be a useful tool to assist novice flight nurses to attain the skills necessary to provide safe and competent care more efficiently, and may aid in designing curricula and programmes of research. Conclusion Research is needed to determine the usefulness of this theory in both rotary and fixed-wing medical transport settings, and to examine the similarities and differences related to expertise needed for different flight nurse team compositions. Curriculum and training innovations can result from increased understanding of the concepts and relationships proposed in this theory. PMID:20337803

  7. Restricted time diagnoses: expertise differences among clinical pathologists

    NARCIS (Netherlands)

    Jaarsma, Thomas; Jarodzka, Halszka; Nap, Marius; Van Merriënboer, Jeroen; Boshuizen, Els

    2013-01-01

    Jaarsma, T., Jarodzka, H., Nap, M., Van Merriënboer, J., & Boshuizen, H. P. A. (2012, 22 October). Restricted time diagnoses: expertise differences among clinical pathologists. Paper presented at the workshop 'New tools and practices for learning and seeing in medicine', University of Turku, Turku,

  8. Influences of medical expertise on visual diagnosis in pathology

    NARCIS (Netherlands)

    Jaarsma, Thomas; Jarodzka, Halszka; Nap, Marius; Van Merriënboer, Jeroen; Boshuizen, Els

    2013-01-01

    Jaarsma, T., Jarodzka, H., Nap, M., Van Merriënboer, J. J. G., & Boshuizen, H. P. A. (2012, 9 November). Expertise development in clinical pathology: From novice to expert in a highly visual medical domain. Poster presented at the ICO Fall School, Girona, Spain.

  9. Visuele expertise: ontwikkeling en didactiek bij klinisch pathologen

    NARCIS (Netherlands)

    Jaarsma, Thomas; Jarodzka, Halszka; Nap, Marius; Van Merriënboer, Jeroen; Boshuizen, Els

    2013-01-01

    Jaarsma, T., Jarodzka, H., Nap, M., Van Merriënboer, J. J. G., Boshuizen, H. P. A. (2012, 22 June). Visuele expertise: ontwikkeling en didactiek bij klinisch pathologen. Poster presented at the Onderwijs Research Dagen [Educational Research Days], Wageningen, The Netherlands.

  10. Conditions for Intuitive Expertise: A Failure to Disagree

    Science.gov (United States)

    Kahneman, Daniel; Klein, Gary

    2009-01-01

    This article reports on an effort to explore the differences between two approaches to intuition and expertise that are often viewed as conflicting: heuristics and biases (HB) and naturalistic decision making (NDM). Starting from the obvious fact that professional intuition is sometimes marvelous and sometimes flawed, the authors attempt to map…

  11. Expertise in the Age of Post-Factual politics

    DEFF Research Database (Denmark)

    Berling, Trine Villumsen; Bueger, Christian

    2017-01-01

    What has become known as post-factual politics poses particular challenges to the role of expertise, calling for a new type of reflexivity able to inform scholarly strategies towards policy. Taking recent literature on the ‘practice turn’ as our point of departure, we argue for introducing a sens...

  12. Expertise: Myth or Reality of a Cross-National Definition?

    Science.gov (United States)

    Germain, Marie-Line; Ruiz, Carlos Enrique

    2009-01-01

    Purpose: The purpose of this paper is to offer a comparison of how human expertise is perceived by human resource development (HRD) scholars across several Western European countries and in the USA. Design/methodology/approach: A qualitative, exploratory approach using electronic mail was used for this study. In total, 36 leading HRD scholars from…

  13. A Neural Marker of Medical Visual Expertise: Implications for Training

    Science.gov (United States)

    Rourke, Liam; Cruikshank, Leanna C.; Shapke, Larissa; Singhal, Anthony

    2016-01-01

    Researchers have identified a component of the EEG that discriminates visual experts from novices. The marker indexes a comprehensive model of visual processing, and if it is apparent in physicians, it could be used to investigate the development and training of their visual expertise. The purpose of this study was to determine whether a neural…

  14. Building Expertise to Support Digital Scholarship: A Global Perspective

    Science.gov (United States)

    Lewis, Vivian; Spiro, Lisa; Wang, Xuemao; Cawthorne, Jon E.

    2015-01-01

    This report sheds light on the expertise required to support a robust and sustainable digital scholarship (DS) program. It focuses first on defining and describing the key domain knowledge, skills, competencies, and mindsets at some of the world's most prominent digital scholarship programs. It then identifies the main strategies used to build…

  15. Negative Expertise: Comparing Differently Tenured Elder Care Nurses' Negative Knowledge

    Science.gov (United States)

    Gartmeier, Martin; Lehtinen, Erno; Gruber, Hans; Heid, Helmut

    2011-01-01

    Negative expertise is conceptualised as the professional's ability to avoid errors during practice due to certain cognitive agencies. In this study, negative knowledge (i.e. knowledge about what is wrong in a certain context and situation) is conceptualised as one such agency. This study compares and investigates the negative knowledge of elder…

  16. Recognizing and Developing Adaptive Expertise within Outdoor and Expedition Leaders

    Science.gov (United States)

    Tozer, Mark; Fazey, Ioan; Fazey, John

    2007-01-01

    Adaptive expertise, an individual's ability to perform flexibly and innovatively in novel and unstructured situations, could have particular relevance for expedition and outdoor leaders. This element may be recognized in leadership practitioners who are able to act more effectively when problem-solving in complex, ambiguous and unpredictable…

  17. Solid Matter

    CERN Document Server

    Angelo, Joseph A

    2011-01-01

    Supported by a generous quantity of full-color illustrations and interesting sidebars, Solid Matter introduces the basic characteristics and properties of solid matter. It briefly describes the cosmic connection of the elements, leading readers through several key events in human pre-history that resulted in more advanced uses of matter in the solid state. Chapters include:. -Solid Matter: An Initial Perspective. -Physical Behavior of Matter. -The Gravity of Matter. -Fundamentals of Materials Science. -Rocks and Minerals. -Metals. -Building Materials. -Carbon Earth's Most Versatile Element. -S

  18. Questioning expertise. (book review of Evan Selinger & Robert Crease (eds), 'The philosophy of expertise, and Roger Pielke, 'The honest broker'.)

    NARCIS (Netherlands)

    Briggle, A.R.

    2008-01-01

    The Philosophy of Expertise / Evan Selinger & Robert P. Crease, (eds). - New York : Columbia University Press, 2006. - ISBN 0-231-13644-7 [and] The Honest Broker: Making Sense of Science in Policy and Politics / Roger A. Pielke. - New York : Cambridge University Press, 2007. - ISBN 05-218-7320-7

  19. Speech Matters

    DEFF Research Database (Denmark)

    Hasse Jørgensen, Stina

    2011-01-01

    About Speech Matters - Katarina Gregos, the Greek curator's exhibition at the Danish Pavillion, the Venice Biannual 2011.......About Speech Matters - Katarina Gregos, the Greek curator's exhibition at the Danish Pavillion, the Venice Biannual 2011....

  20. Dark Matter

    Indian Academy of Sciences (India)

    matter and that it must be of some exotic type. Before we discuss the evidences for dark matter in clusters of galaxies, let us point out that it is not just spiral galaxies which are thought to contain dark matter, although the evidences from them are the strongest. Other types of galaxies, like elliptical galaxies, are often seen to ...

  1. Classification of user expertise level by neural networks.

    Science.gov (United States)

    Leung, S C; Fulcher, J

    1997-04-01

    A neural network approach to low-level user modeling is described, in the context of text editing tasks using the Jove editor. Knowledge of a user's expertise is extracted automatically, based on their interaction with Jove over a two week period. A MLP classifier which uses rprop learning and incorporates output data fuzzification is developed to classify users into one of five expertise levels. Classification into the correct level is achieved in around 80% of the cases, with misclassification being restricted to adjacent classes. The neurofuzzy system is seen to outperform not only the binary classifier of Beale [1989], but also production rule and inductive expert systems developed especially for comparison purposes in this study.

  2. Deliberate practice in dogs: a canine model of expertise.

    Science.gov (United States)

    Helton, William S

    2007-04-01

    The acquisition of expertise is an area of controversy between those who lean more toward learning and those who lean more toward talent. Because the genetics and early life experiences of humans are not open to direct manipulation, human studies are of limited use in this debate. Studies using nonhumans as expert models may prove useful in resolving this dispute. For nonhumans to be considered proper models of human experts, there must be evidence supporting a shared acquisition mechanism. A candidate mechanism is deliberate practice. The author tested the deliberate practice theory of expertise acquisition on dogs competing in the sport of agility. The author examined the relationships between amounts of accumulated deliberate practice and agility performance measures. The author found there was a statistically significant relationship between the amount of deliberate practice and measured performance in agility dogs, even when controlling for sex, breed group, age, and height.

  3. Social dimensions of expertise in World of Warcraft players

    Directory of Open Access Journals (Sweden)

    Mark Chen

    2009-03-01

    Full Text Available Expertise development in the massively multiplayer online game World of Warcraft (Blizzard Entertainment, 2004 depends greatly on a player's use of social skills to gain access to expert player groups and accrue social and cultural capital. Drawn from ethnographic research, this paper maps out various forms of expert practice and highlights the social aspects of game play that often eclipse the importance of game-mechanics knowledge. At the time of this research, playing World of Warcraft and developing expertise in the game happened roughly within a two-stage process: (1 leveling up, or advancing one's character or avatar while learning the mechanics of the game, and (2 drawing on social capital gained during the first stage to join a group of up to 40 players to partake in high-end or endgame content.

  4. Integrating LCA and EHS expertise in the assessment of nanoparticles

    DEFF Research Database (Denmark)

    Olsen, Stig Irving; Hankin, Steve; Chaudry, Qasim

    DTU with their expertise in LCA have joined forces with IOM in two nanotechnology-related projects, one of which additionally involves and is lead by FERA. The first project, Nancore, includes the evaluation of health risks and environmental impacts over the life cycle concurrently with the devel......DTU with their expertise in LCA have joined forces with IOM in two nanotechnology-related projects, one of which additionally involves and is lead by FERA. The first project, Nancore, includes the evaluation of health risks and environmental impacts over the life cycle concurrently...... with the development of new production technology for lightweight materials used in e.g. wind turbine blades. As the new technology involves the use of nanoparticles, the health and safety workpackage is needed to examine the potential exposure and effects of these particles. An LCA is also performed to evaluate...

  5. The Neural Circuitry of Expertise: Perceptual Learning and Social Cognition

    Directory of Open Access Journals (Sweden)

    Michael eHarre

    2013-12-01

    Full Text Available Amongst the most significant questions we are confronted with today include the integration of the brain's micro-circuitry, our ability to build the complex social networks that underpin society and how our society impacts on our ecological environment. In trying to unravel these issues one place to begin is at the level of the individual: to consider how we accumulate information about our environment, how this information leads to decisions and how our individual decisions in turn create our social environment. While this is an enormous task, we may already have at hand many of the tools we need. This article is intended to review some of the recent results in neuro-cognitive research and show how they can be extended to two very specific types of expertise: perceptual expertise and social cognition. These two cognitive skills span a vast range of our genetic heritage. Perceptual expertise developed very early in our evolutionary history and is likely a highly developed part of all mammals' cognitive ability. On the other hand social cognition is most highly developed in humans in that we are able to maintain larger and more stable long term social connections with more behaviourally diverse individuals than any other species. To illustrate these ideas I will discuss board games as a toy model of social interactions as they include many of the relevant concepts: perceptual learning, decision-making, long term planning and understanding the mental states of other people. Using techniques that have been developed in mathematical psychology, I show that we can represent some of the key features of expertise using stochastic differential equations. Such models demonstrate how an expert's long exposure to a particular context influences the information they accumulate in order to make a decision.These processes are not confined to board games, we are all experts in our daily lives through long exposure to the many regularities of daily tasks and

  6. The neural circuitry of expertise: perceptual learning and social cognition.

    Science.gov (United States)

    Harré, Michael

    2013-12-17

    Amongst the most significant questions we are confronted with today include the integration of the brain's micro-circuitry, our ability to build the complex social networks that underpin society and how our society impacts on our ecological environment. In trying to unravel these issues one place to begin is at the level of the individual: to consider how we accumulate information about our environment, how this information leads to decisions and how our individual decisions in turn create our social environment. While this is an enormous task, we may already have at hand many of the tools we need. This article is intended to review some of the recent results in neuro-cognitive research and show how they can be extended to two very specific and interrelated types of expertise: perceptual expertise and social cognition. These two cognitive skills span a vast range of our genetic heritage. Perceptual expertise developed very early in our evolutionary history and is a highly developed part of all mammals' cognitive ability. On the other hand social cognition is most highly developed in humans in that we are able to maintain larger and more stable long term social connections with more behaviorally diverse individuals than any other species. To illustrate these ideas I will discuss board games as a toy model of social interactions as they include many of the relevant concepts: perceptual learning, decision-making, long term planning and understanding the mental states of other people. Using techniques that have been developed in mathematical psychology, I show that we can represent some of the key features of expertise using stochastic differential equations (SDEs). Such models demonstrate how an expert's long exposure to a particular context influences the information they accumulate in order to make a decision.These processes are not confined to board games, we are all experts in our daily lives through long exposure to the many regularities of daily tasks and social

  7. Towards identifying programming expertise with the use of physiological measures

    DEFF Research Database (Denmark)

    Kontogiorgos, Dimosthenis; Manikas, Konstantinos

    2015-01-01

    In this position paper we propose means of measuring programming expertise on novice and expert programmers. Our approach is to measure the cognitive load of programmers while they assess Java/Python code in accordance with their experience in programming. Our hypothesis is that expert programmers...... encounter smaller pupillary dilation within programming problem solving tasks. We aim to evaluate our hypothesis using the EMIP Distributed Data Collection in order to confirm or reject our approach....

  8. Context-specific effects of musical expertise on audiovisual integration

    Directory of Open Access Journals (Sweden)

    Laura eBishop

    2014-10-01

    Full Text Available Ensemble musicians exchange auditory and visual signals that can facilitate interpersonal synchronisation. Musical expertise improves how precisely auditory and visual signals are perceptually integrated and increases sensitivity to asynchrony between them. Whether expertise improves sensitivity to audiovisual asynchrony in all instrumental contexts or only in those using sound-producing gestures that are within an observer's own motor repertoire is unclear. This study tested the hypothesis that musicians are more sensitive to audiovisual asynchrony in performances featuring their own instrument than in performances featuring other instruments. Short clips were extracted from audio-video recordings of clarinet, piano, and violin performances and presented to highly-skilled clarinettists, pianists, and violinists. Clips either maintained the audiovisual synchrony present in the original recording or were modified so that the video led or lagged behind the audio. Participants indicated whether the audio and video channels in each clip were synchronised. The range of asynchronies most often endorsed as synchronised was assessed as a measure of participants' sensitivities to audiovisual asynchrony. A positive relationship was observed between musical training and sensitivity, with data pooled across stimuli. While participants across expertise groups detected asynchronies most readily in piano stimuli and least readily in violin stimuli, pianists showed significantly better performance for piano stimuli than for either clarinet or violin. These findings suggest that, to an extent, the effects of expertise on audiovisual integration can be instrument-specific; however, the nature of the sound-producing gestures that are observed has a substantial effect on how readily asynchrony is detected as well.

  9. Pilot age and expertise predict flight simulator performance

    Science.gov (United States)

    Kennedy, Quinn; Noda, Art; Yesavage, Jerome A.

    2010-01-01

    Background Expert knowledge may compensate for age-related declines in basic cognitive and sensory-motor abilities in some skill domains. We investigated the influence of age and aviation expertise (indexed by Federal Aviation Administration pilot ratings) on longitudinal flight simulator performance. Methods Over a 3-year period, 118 general aviation pilots aged 40 to 69 years were tested annually, in which their flight performance was scored in terms of 1) executing air-traffic controller communications; 2) traffic avoidance; 3) scanning cockpit instruments; 4) executing an approach to landing; and 5) a flight summary score. Results More expert pilots had better flight summary scores at baseline and showed less decline over time. Secondary analyses revealed that expertise effects were most evident in the accuracy of executing aviation communications, the measure on which performance declined most sharply over time. Regarding age, even though older pilots initially performed worse than younger pilots, over time older pilots showed less decline in flight summary scores than younger pilots. Secondary analyses revealed that the oldest pilots did well over time because their traffic avoidance performance improved more vs younger pilots. Conclusions These longitudinal findings support previous cross-sectional studies in aviation as well as non-aviation domains, which demonstrated the advantageous effect of prior experience and specialized expertise on older adults’ skilled cognitive performances. PMID:17325270

  10. Degree of musical expertise modulates higher order brain functioning.

    Science.gov (United States)

    Oechslin, Mathias S; Van De Ville, Dimitri; Lazeyras, François; Hauert, Claude-Alain; James, Clara E

    2013-09-01

    Using functional magnetic resonance imaging, we show for the first time that levels of musical expertise stepwise modulate higher order brain functioning. This suggests that degree of training intensity drives such cerebral plasticity. Participants (non-musicians, amateurs, and expert musicians) listened to a comprehensive set of specifically composed string quartets with hierarchically manipulated endings. In particular, we implemented 2 irregularities at musical closure that differed in salience but were both within the tonality of the piece (in-key). Behavioral sensitivity scores (d') of both transgressions perfectly separated participants according to their level of musical expertise. By contrasting brain responses to harmonic transgressions against regular endings, functional brain imaging data showed compelling evidence for stepwise modulation of brain responses by both violation strength and expertise level in a fronto-temporal network hosting universal functions of working memory and attention. Additional independent testing evidenced an advantage in visual working memory for the professionals, which could be predicted by musical training intensity. The here introduced findings of brain plasticity demonstrate the progressive impact of musical training on cognitive brain functions that may manifest well beyond the field of music processing.

  11. Musical expertise and the ability to imagine loudness.

    Science.gov (United States)

    Bishop, Laura; Bailes, Freya; Dean, Roger T

    2013-01-01

    Most perceived parameters of sound (e.g. pitch, duration, timbre) can also be imagined in the absence of sound. These parameters are imagined more veridically by expert musicians than non-experts. Evidence for whether loudness is imagined, however, is conflicting. In music, the question of whether loudness is imagined is particularly relevant due to its role as a principal parameter of performance expression. This study addressed the hypothesis that the veridicality of imagined loudness improves with increasing musical expertise. Experts, novices and non-musicians imagined short passages of well-known classical music under two counterbalanced conditions: 1) while adjusting a slider to indicate imagined loudness of the music and 2) while tapping out the rhythm to indicate imagined timing. Subtests assessed music listening abilities and working memory span to determine whether these factors, also hypothesised to improve with increasing musical expertise, could account for imagery task performance. Similarity between each participant's imagined and listening loudness profiles and reference recording intensity profiles was assessed using time series analysis and dynamic time warping. The results suggest a widespread ability to imagine the loudness of familiar music. The veridicality of imagined loudness tended to be greatest for the expert musicians, supporting the predicted relationship between musical expertise and musical imagery ability.

  12. Musical expertise and the ability to imagine loudness.

    Directory of Open Access Journals (Sweden)

    Laura Bishop

    Full Text Available Most perceived parameters of sound (e.g. pitch, duration, timbre can also be imagined in the absence of sound. These parameters are imagined more veridically by expert musicians than non-experts. Evidence for whether loudness is imagined, however, is conflicting. In music, the question of whether loudness is imagined is particularly relevant due to its role as a principal parameter of performance expression. This study addressed the hypothesis that the veridicality of imagined loudness improves with increasing musical expertise. Experts, novices and non-musicians imagined short passages of well-known classical music under two counterbalanced conditions: 1 while adjusting a slider to indicate imagined loudness of the music and 2 while tapping out the rhythm to indicate imagined timing. Subtests assessed music listening abilities and working memory span to determine whether these factors, also hypothesised to improve with increasing musical expertise, could account for imagery task performance. Similarity between each participant's imagined and listening loudness profiles and reference recording intensity profiles was assessed using time series analysis and dynamic time warping. The results suggest a widespread ability to imagine the loudness of familiar music. The veridicality of imagined loudness tended to be greatest for the expert musicians, supporting the predicted relationship between musical expertise and musical imagery ability.

  13. Professional expertise amongst speech-language therapists: "willing to share".

    Science.gov (United States)

    Jackson, Bianca N; Purdy, Suzanne Carolyn; Cooper-Thomas, Helena

    2017-09-18

    Purpose The current healthcare environment provides several challenges to the existing roles of healthcare professionals. The value of the professional expert is also under scrutiny. The purpose of this paper is to generate a construction of professional expertise amongst practitioners in the current healthcare environment. It used the speech-language therapy community in New Zealand (NZ) as an example. Design/methodology/approach Speech-language therapists currently practicing in NZ completed an online survey including qualitative and quantitative components. The range of experience and work settings of participants ( n=119) was representative of the workforce. Findings Participants clearly identified being "highly experienced" and "having in-depth knowledge" as essential elements of professional expertise. Thematic analysis generated two interconnected themes of a professional expert being a personal leader and teacher, and a highly experienced, knowledgeable and skilful practitioner. Additionally, practitioners needed to be seen to contribute to the community in order to be known as experts. Clinical practice was valued differently from research generation. Originality/value This study is novel in exploring a construction of professional expertise amongst practitioners in a current healthcare community. Within that community, experts could be viewed as highly effective practitioners that visibly contribute to the professional community. The study draws attention to the role of reputation and the impacts of being a clinical teacher or leader compared with pursuing a research role. This could be particularly relevant in the promotion of evidence-based practice.

  14. Age and Expertise Effects in Aviation Decision Making and Flight Control in a Flight Simulator

    Science.gov (United States)

    Kennedy, Quinn; Taylor, Joy L.; Reade, Gordon; Yesavage, Jerome A.

    2010-01-01

    Introduction Age (due to declines in cognitive abilities necessary for navigation) and level of aviation expertise are two factors that may affect aviation performance and decision making under adverse weather conditions. We examined the roles of age, expertise, and their relationship on aviation decision making and flight control performance during a flight simulator task. Methods Seventy-two IFR-rated general aviators, aged 19–79 yr, made multiple approach, holding pattern entry, and landing decisions while navigating under Instrument Flight Rules weather conditions. Over three trials in which the fog level varied, subjects decided whether or not to land the aircraft. They also completed two holding pattern entries. Subjects’ flight control during approaches and holding patterns was measured. Results Older pilots (41+ yr) were more likely than younger pilots to land when visibility was inadequate (older pilots’ mean false alarm rate: 0.44 vs 0.25). They also showed less precise flight control for components of the approach, performing 0.16 SD below mean approach scores. Expertise attenuated an age-related decline in flight control during holding patterns: older IFR/CFI performed 0.73 SD below mean score; younger IFR/CFI, younger CFII/ATP, older CFII/ATP: 0.32, 0.26, 0.03 SD above mean score. Additionally, pilots with faster processing speed (by median split) had a higher mean landing decision false alarm rate (0.42 vs 0.28), yet performed 0.14 SD above the mean approach control score. Conclusions Results have implications regarding specialized training for older pilots and for understanding processes involved in older adults’ real world decision making and performance. PMID:20464816

  15. A study on mobile PC display design in NPP maintenance considering the level of expertise

    Energy Technology Data Exchange (ETDEWEB)

    Kim, In

    2010-02-15

    Recently, the importance of effective maintenance in nuclear power plants (NPPs) has been emphasized and research into effective maintenance by adopting mobile maintenance aids (MMAs) have been attempted. MMAs are currently used during operation and maintenance in NPPs, but no method that considers the limitations of mobile devices has been proposed. For improved and effective use, an MMA display design method based on abstraction hierarchy (AH) is proposed and its design considerations are discussed in this study. Six levels of abstraction hierarchy are proposed in this paper to classify the maintenance information. By classifying and organizing maintenance information using AH, maintenance information can be used effectively by users either high or low levels of expertise. When information classification has been finished, the information requirements and relationships for MMA design is extracted from the analysis of the AH result. Representative human-machine interface (HMI) guidelines issued by the US NRC, which are generally used in NPPs, are applied. With the considerations of MMA design analysis and practical guidelines, AH-based MMA is designed for maintenance tasks. An experiment is conducted using the AH-based MMA in order to estimate the effectiveness of the proposed method for maintenance tasks and to identify design considerations to enhance the proposed MMAs. The result indicated that an AH-based manual was more effective than a conventional manual in terms of task completion time and number of errors. The workload for the AH-based manual was estimated to be less than the conventional manual for low levels of expertise. However, a conventional manual was more comprehensive than the proposed manual and the steps contained in the maintenance manual were easier to remember. As the level of expertise increases, subjects tended to follow more abstract information while the number of navigations decreased. It is believed that when mobile devices become

  16. Expertise affects representation structure and categorical activation of grasp postures in climbing

    Directory of Open Access Journals (Sweden)

    Bettina E. Bläsing

    2014-09-01

    Full Text Available In indoor rock climbing, the perception of object properties and the adequate execution of grasping actions highly determine climbers’ performance. In two consecutive experiments, effects of climbing expertise on the cognitive activation of grasping actions following the presentation of climbing holds was investigated. Experiment 1 evaluated the representation of climbing holds in the long-term memory of climbers and non-climbers with the help of a psychometric measurement method. Within a hierarchical splitting procedure subjects had to decide about the similarity of required grasping postures. For the group of climbers, representation structures corresponded clearly to four grip types. In the group of non-climbers, representation structures differed more strongly than in climbers and did not clearly refer to grip types. To learn about categorical knowledge activation in Experiment 2, a priming paradigm was applied. Images of hands in grasping postures were presented as targets and images of congruent, neutral, or incongruent climbing holds were used as primes. Only in climbers, reaction times were shorter and error rates were smaller for the congruent condition than for the incongruent condition. The neutral condition resulted in intermediate performance. The findings suggest that perception of climbing holds activates the commonly associated grasping postures in climbers but not in non-climbers. The findings of this study give evidence that the categorization of visually perceived objects is fundamentally influenced by the cognitive-motor potential for interaction, which depends on the observer’s experience and expertise. Thus, motor expertise not only facilitates precise action perception, but also benefits the perception of action-relevant objects.

  17. Expertise affects representation structure and categorical activation of grasp postures in climbing.

    Science.gov (United States)

    Bläsing, Bettina E; Güldenpenning, Iris; Koester, Dirk; Schack, Thomas

    2014-01-01

    In indoor rock climbing, the perception of object properties and the adequate execution of grasping actions highly determine climbers' performance. In two consecutive experiments, effects of climbing expertise on the cognitive activation of grasping actions following the presentation of climbing holds was investigated. Experiment 1 evaluated the representation of climbing holds in the long-term memory of climbers and non-climbers with the help of a psychometric measurement method. Within a hierarchical splitting procedure subjects had to decide about the similarity of required grasping postures. For the group of climbers, representation structures corresponded clearly to four grip types. In the group of non-climbers, representation structures differed more strongly than in climbers and did not clearly refer to grip types. To learn about categorical knowledge activation in Experiment 2, a priming paradigm was applied. Images of hands in grasping postures were presented as targets and images of congruent, neutral, or incongruent climbing holds were used as primes. Only in climbers, reaction times were shorter and error rates were smaller for the congruent condition than for the incongruent condition. The neutral condition resulted in intermediate performance. The findings suggest that perception of climbing holds activates the commonly associated grasping postures in climbers but not in non-climbers. The findings of this study give evidence that the categorization of visually perceived objects is fundamentally influenced by the cognitive-motor potential for interaction, which depends on the observer's experience and expertise. Thus, motor expertise not only facilitates precise action perception, but also benefits the perception of action-relevant objects.

  18. Expertise affects representation structure and categorical activation of grasp postures in climbing

    Science.gov (United States)

    Bläsing, Bettina E.; Güldenpenning, Iris; Koester, Dirk; Schack, Thomas

    2014-01-01

    In indoor rock climbing, the perception of object properties and the adequate execution of grasping actions highly determine climbers' performance. In two consecutive experiments, effects of climbing expertise on the cognitive activation of grasping actions following the presentation of climbing holds was investigated. Experiment 1 evaluated the representation of climbing holds in the long-term memory of climbers and non-climbers with the help of a psychometric measurement method. Within a hierarchical splitting procedure subjects had to decide about the similarity of required grasping postures. For the group of climbers, representation structures corresponded clearly to four grip types. In the group of non-climbers, representation structures differed more strongly than in climbers and did not clearly refer to grip types. To learn about categorical knowledge activation in Experiment 2, a priming paradigm was applied. Images of hands in grasping postures were presented as targets and images of congruent, neutral, or incongruent climbing holds were used as primes. Only in climbers, reaction times were shorter and error rates were smaller for the congruent condition than for the incongruent condition. The neutral condition resulted in intermediate performance. The findings suggest that perception of climbing holds activates the commonly associated grasping postures in climbers but not in non-climbers. The findings of this study give evidence that the categorization of visually perceived objects is fundamentally influenced by the cognitive-motor potential for interaction, which depends on the observer's experience and expertise. Thus, motor expertise not only facilitates precise action perception, but also benefits the perception of action-relevant objects. PMID:25309480

  19. Instructional Design for Accelerated Macrocognitive Expertise in the Baseball Workplace

    Directory of Open Access Journals (Sweden)

    Peter J. Fadde

    2016-03-01

    Full Text Available The goal of accelerating expertise can leave researchers and trainers in human factors, naturalistic decision making, sport science, and expertise studies concerned about seemingly insufficient application of expert performance theories, findings and methods for training macrocognitive aspects of human performance. Video-occlusion methods perfected by sports expertise researchers have great instructional utility, in some cases offering an effective and inexpensive alternative to high-fidelity simulation. A key problem for instructional designers seems to be that expertise research done in laboratory and field settings doesn’t get adequately translated into workplace training. Therefore, this article presents a framework for better linkage of expertise research/training across laboratory, field, and workplace settings. It also uses a case study to trace the development and implementation of a macrocognitive training program in the very challenging workplace of the baseball batters’ box. This training, which was embedded for a full season in a college baseball team, targeted the perceptual-cognitive skill of pitch recognition that allows expert batters to circumvent limitations of human reaction time in order to hit a 90 mile-per-hour slider. While baseball batting has few analogous skills outside of sports, the instructional design principles of the training program developed to improve batting have wider applicability and implications. Its core operational principle, supported by information processing models but challenged by ecological models, decouples the perception-action link for targeted part-task training of the perception component, in much the same way that motor components routinely are isolated to leverage instructional efficiencies. After targeted perceptual training, perception and action were recoupled via transfer-appropriate tasks inspired by in situ research tasks. Using NCAA published statistics as performance measures

  20. Instructional Design for Accelerated Macrocognitive Expertise in the Baseball Workplace

    Science.gov (United States)

    Fadde, Peter J.

    2016-01-01

    The goal of accelerating expertise can leave researchers and trainers in human factors, naturalistic decision making, sport science, and expertise studies concerned about seemingly insufficient application of expert performance theories, findings and methods for training macrocognitive aspects of human performance. Video-occlusion methods perfected by sports expertise researchers have great instructional utility, in some cases offering an effective and inexpensive alternative to high-fidelity simulation. A key problem for instructional designers seems to be that expertise research done in laboratory and field settings doesn't get adequately translated into workplace training. Therefore, this article presents a framework for better linkage of expertise research/training across laboratory, field, and workplace settings. It also uses a case study to trace the development and implementation of a macrocognitive training program in the very challenging workplace of the baseball batters' box. This training, which was embedded for a full season in a college baseball team, targeted the perceptual-cognitive skill of pitch recognition that allows expert batters to circumvent limitations of human reaction time in order to hit a 90 mile-per-hour slider. While baseball batting has few analogous skills outside of sports, the instructional design principles of the training program developed to improve batting have wider applicability and implications. Its core operational principle, supported by information processing models but challenged by ecological models, decouples the perception-action link for targeted part-task training of the perception component, in much the same way that motor components routinely are isolated to leverage instructional efficiencies. After targeted perceptual training, perception and action were recoupled via transfer-appropriate tasks inspired by in situ research tasks. Using NCAA published statistics as performance measures, the cooperating team

  1. Instructional Design for Accelerated Macrocognitive Expertise in the Baseball Workplace.

    Science.gov (United States)

    Fadde, Peter J

    2016-01-01

    The goal of accelerating expertise can leave researchers and trainers in human factors, naturalistic decision making, sport science, and expertise studies concerned about seemingly insufficient application of expert performance theories, findings and methods for training macrocognitive aspects of human performance. Video-occlusion methods perfected by sports expertise researchers have great instructional utility, in some cases offering an effective and inexpensive alternative to high-fidelity simulation. A key problem for instructional designers seems to be that expertise research done in laboratory and field settings doesn't get adequately translated into workplace training. Therefore, this article presents a framework for better linkage of expertise research/training across laboratory, field, and workplace settings. It also uses a case study to trace the development and implementation of a macrocognitive training program in the very challenging workplace of the baseball batters' box. This training, which was embedded for a full season in a college baseball team, targeted the perceptual-cognitive skill of pitch recognition that allows expert batters to circumvent limitations of human reaction time in order to hit a 90 mile-per-hour slider. While baseball batting has few analogous skills outside of sports, the instructional design principles of the training program developed to improve batting have wider applicability and implications. Its core operational principle, supported by information processing models but challenged by ecological models, decouples the perception-action link for targeted part-task training of the perception component, in much the same way that motor components routinely are isolated to leverage instructional efficiencies. After targeted perceptual training, perception and action were recoupled via transfer-appropriate tasks inspired by in situ research tasks. Using NCAA published statistics as performance measures, the cooperating team

  2. Expertise in Clinical Psychology. The Effects of University Training and Practical Experience on Expertise in Clinical Psychology

    Science.gov (United States)

    Vollmer, Sabine; Spada, Hans; Caspar, Franz; Burri, Salome

    2013-01-01

    How do university training and subsequent practical experience affect expertise in clinical psychology? To answer this question we developed methods to assess psychological knowledge and the competence to diagnose, construct case conceptualizations, and plan psychotherapeutic treatment: a knowledge test and short case studies in a first study, and a complex, dynamically evolving case study in the second study. In our cross-sectional studies, psychology students, trainees in a certified postgraduate psychotherapist curriculum, and behavior therapists with more than 10 years of experience were tested (100 in total: 20 each of novice, intermediate, and advanced university students, postgraduate trainees, and therapists). Clinical knowledge and competence increased up to the level of trainees but unexpectedly decreased at the level of experienced therapists. We discuss the results against the background of expertise research and the training of clinical psychologists (in Germany). Important factors for the continuing professional development of psychotherapists are proposed. PMID:23543213

  3. Left-lateralized N170 effects of visual expertise in reading: evidence from Japanese syllabic and logographic scripts.

    Science.gov (United States)

    Maurer, Urs; Zevin, Jason D; McCandliss, Bruce D

    2008-10-01

    The N170 component of the event-related potential (ERP) reflects experience-dependent neural changes in several forms of visual expertise, including expertise for visual words. Readers skilled in writing systems that link characters to phonemes (i.e., alphabetic writing) typically produce a left-lateralized N170 to visual word forms. This study examined the N170 in three Japanese scripts that link characters to larger phonological units. Participants were monolingual English speakers (EL1) and native Japanese speakers (JL1) who were also proficient in English. ERPs were collected using a 129-channel array, as participants performed a series of experiments viewing words or novel control stimuli in a repetition detection task. The N170 was strongly left-lateralized for all three Japanese scripts (including logographic Kanji characters) in JL1 participants, but bilateral in EL1 participants viewing these same stimuli. This demonstrates that left-lateralization of the N170 is dependent on specific reading expertise and is not limited to alphabetic scripts. Additional contrasts within the moraic Katakana script revealed equivalent N170 responses in JL1 speakers for familiar Katakana words and for Kanji words transcribed into novel Katakana words, suggesting that the N170 expertise effect is driven by script familiarity rather than familiarity with particular visual word forms. Finally, for English words and novel symbol string stimuli, both EL1 and JL1 subjects produced equivalent responses for the novel symbols, and more left-lateralized N170 responses for the English words, indicating that such effects are not limited to the first language. Taken together, these cross-linguistic results suggest that similar neural processes underlie visual expertise for print in very different writing systems.

  4. Experience does not equal expertise in recognizing infrequent incoming gunfire: neural markers for experience and task expertise at peak behavioral performance.

    Directory of Open Access Journals (Sweden)

    Jason Samuel Sherwin

    Full Text Available For a soldier, decisions to use force can happen rapidly and sometimes lead to undesired consequences. In many of these situations, there is a rapid assessment by the shooter that recognizes a threat and responds to it with return fire. But the neural processes underlying these rapid decisions are largely unknown, especially amongst those with extensive weapons experience and expertise. In this paper, we investigate differences in weapons experts and non-experts during an incoming gunfire detection task. Specifically, we analyzed the electroencephalography (EEG of eleven expert marksmen/soldiers and eleven non-experts while they listened to an audio scene consisting of a sequence of incoming and non-incoming gunfire events. Subjects were tasked with identifying each event as quickly as possible and committing their choice via a motor response. Contrary to our hypothesis, experts did not have significantly better behavioral performance or faster response time than novices. Rather, novices indicated trends of better behavioral performance than experts. These group differences were more dramatic in the EEG correlates of incoming gunfire detection. Using machine learning, we found condition-discriminating EEG activity among novices showing greater magnitude and covering longer periods than those found in experts. We also compared group-level source reconstruction on the maximum discriminating neural correlates and found that each group uses different neural structures to perform the task. From condition-discriminating EEG and source localization, we found that experts perceive more categorical overlap between incoming and non-incoming gunfire. Consequently, the experts did not perform as well behaviorally as the novices. We explain these unexpected group differences as a consequence of experience with gunfire not being equivalent to expertise in recognizing incoming gunfire.

  5. The Subjectivity of Participation

    DEFF Research Database (Denmark)

    Nissen, Morten

    What is a 'we' – a collective – and how can we use such communal self-knowledge to help people? This book is about collectivity, participation, and subjectivity – and about the social theories that may help us understand these matters. It also seeks to learn from the innovative practices and ideas...... practices. Through this dialogue, it develops an original trans-disciplinary critical theory and practice of collective subjectivity for which the ongoing construction and overcoming of common sense, or ideology, is central. It also points to ways of relating discourse with agency, and fertilizing insights...... from interactionism and ideology theories in a cultural-historical framework....

  6. Capturing the essence of developing endovascular expertise for the construction of a global assessment instrument

    DEFF Research Database (Denmark)

    Bech, B.; Lönn, L.; Schroeder, T. V.

    2010-01-01

    To explore what characterises the development of endovascular expertise and to construct a novel global assessment instrument.......To explore what characterises the development of endovascular expertise and to construct a novel global assessment instrument....

  7. The Success of Linear Bootstrapping Models: Decision Domain-, Expertise-, and Criterion-Specific Meta-Analysis

    Science.gov (United States)

    Kaufmann, Esther; Wittmann, Werner W.

    2016-01-01

    The success of bootstrapping or replacing a human judge with a model (e.g., an equation) has been demonstrated in Paul Meehl’s (1954) seminal work and bolstered by the results of several meta-analyses. To date, however, analyses considering different types of meta-analyses as well as the potential dependence of bootstrapping success on the decision domain, the level of expertise of the human judge, and the criterion for what constitutes an accurate decision have been missing from the literature. In this study, we addressed these research gaps by conducting a meta-analysis of lens model studies. We compared the results of a traditional (bare-bones) meta-analysis with findings of a meta-analysis of the success of bootstrap models corrected for various methodological artifacts. In line with previous studies, we found that bootstrapping was more successful than human judgment. Furthermore, bootstrapping was more successful in studies with an objective decision criterion than in studies with subjective or test score criteria. We did not find clear evidence that the success of bootstrapping depended on the decision domain (e.g., education or medicine) or on the judge’s level of expertise (novice or expert). Correction of methodological artifacts increased the estimated success of bootstrapping, suggesting that previous analyses without artifact correction (i.e., traditional meta-analyses) may have underestimated the value of bootstrapping models. PMID:27327085

  8. THE BLENDED LEARNING ACCOMPLISHMENT OF COMPUTER AND NETWORK ENGINEERING EXPERTISE PROGRAM IN VOCATIONAL SCHOOLS

    Directory of Open Access Journals (Sweden)

    Aries Alfian Prasetyo

    2016-10-01

    Full Text Available This study aims to (1 describe supporting and inhibiting factors in blended learning implementation for the students of computer and network engineering expertise program and (2 describe the accomplishment level of the implementation. This study is designed as a descriptive study with quantitative approach. The research object is the blended learning implementation in computer and network engineering expertise program in SMK N 1 Baureno Bojonegoro. The research subjects consist of teachers, facilities, materials and applications and students in the blended learning implementation process. The data was collected using observation, surveys and interviews. It was analyzed using percentages and classification analysis. The results reveals that the blended learning has been appropriately implemented. It is proven by the analysis result of supporting and inhibiting factors including facilities, teachers’ skill, materials and applications and blended learning accomplishment. The result is also supported by the description about blended learning activity, the use of facilities, blended learning composition and the impact of implementing blended learning. The weaknesses in the implementation process are the low quantity and quality of personal computers and inadequate internet connection. Teachers and school boards are expected to work collaboratively to solve the problems thus the implementation of blended learning can be maximized.

  9. The plasticity of the superior longitudinal fasciculus as a function of musical expertise: a diffusion tensor imaging study.

    Science.gov (United States)

    Oechslin, Mathias S; Imfeld, Adrian; Loenneker, Thomas; Meyer, Martin; Jäncke, Lutz

    2009-01-01

    Previous neuroimaging studies have demonstrated that musical expertise leads to functional alterations in language processing. We utilized diffusion tensor imaging (DTI) to investigate white matter plasticity in musicians with absolute pitch (AP), relative pitch and non-musicians. Using DTI, we analysed the fractional anisotropy (FA) of the superior longitudinal fasciculus (SLF), which is considered the most primary pathway for processing and production of speech and music. In association with different levels of musical expertise, we found that AP is characterized by a greater left than right asymmetry of FA in core fibres of the SLF. A voxel-based analysis revealed three clusters within the left hemisphere SLF that showed significant positive correlations with error rates only for AP-musicians in an AP-test, but not for musicians without AP. We therefore conclude that the SLF architecture in AP musicians is related to AP acuity. In order to reconcile our observations with general aspects of development of fibre bundles, we introduce the Pioneer Axon Thesis, a theoretical approach to formalize axonal arrangements of major white matter pathways.

  10. The plasticity of the superior longitudinal fasciculus as a function of musical expertise: a diffusion tensor imaging study

    Directory of Open Access Journals (Sweden)

    Mathias S Oechslin

    2010-02-01

    Full Text Available Previous neuroimaging studies have demonstrated that musical expertise leads to functional alterations in language processing. We utilized diffusion tensor imaging (DTI to investigate white matter plasticity in musicians with absolute pitch (AP, relative pitch (RP and non-musicians (NM. Using diffusion tensor imaging (DTI, we analyzed the fractional anisotropy of the superior longitudinal fasciculus (SLF, which is considered the most primary pathway for processing and production of speech and music. In association with different levels of musical expertise, we found that AP is characterized by a greater left than right asymmetry of fractional anisotropy (FA in core fibres of the SLF. A voxel-based analysis revealed three clusters within the left hemisphere SLF that showed significant positive correlations with error rates only for AP-musicians in an AP-test, but not for musicians without AP. We therefore conclude that the SLF architecture in AP musicians is related to AP acuity. In order to reconcile our observations with general aspects of development of fibre bundles, we introduce the Pioneer Axon Thesis, a theoretical approach to formalize axonal arrangements of major white matter pathways.

  11. The influence of expertise and of physical complexity on visual short-term memory consolidation.

    Science.gov (United States)

    Sun, Huiming; Zimmer, Hubert D; Fu, Xiaolan

    2011-04-01

    We investigated whether the expertise of a perceiver and the physical complexity of a stimulus influence consolidation of visual short-term memory (VSTM) in a S1-S2 (Stimulus 1-Stimulus 2) change detection task. Consolidation is assumed to make transient perceptual representations in VSTM more durable, and it is investigated by postexposure of a mask shortly after offset of the perceived stimulus (S1; 17 to 483 ms). We presented colours, Chinese characters, pseudocharacters, and novel symbols to novices (Germans) or experts of Chinese language (Chinese readers). Physical complexity was manipulated by the number of strokes. Unfamiliar material was remembered worse than familiar material (Experiments 1, 2, and 3). For novices the absolute VSTM performance was better for physically simple than for complex material, whereas for experts the complexity did not matter-Chinese readers memorized Chinese characters (Experiment 3). Articulatory suppression did not change these effects (Experiment 2). We always observed a strong effect of SOA, but this effect was influenced neither by physical complexity nor by expertise; only the length of the interstimulus interval between S1 and the mask was relevant. This was observed even with short stimulus onset asynchrony (SOA) of 100 ms (Experiment 2) and in comparing colours and characters (Experiment 5). However, masks impaired memory if they were presented at the locations of the to-be-memorized items, but not beside them-that is, interference was location-based (Experiment 6). We explain the effect of SOA by the assumption that it takes time to stop encoding of information presented at item locations with the offset of S1. The increasing resistance against interference by irrelevant material appears as consolidation of S1.

  12. The Psychological Costs of Knowledge Specialization in Groups: Unique Expertise Leaves You out of the Loop

    Science.gov (United States)

    Jones, Eric E.; Kelly, Janice R.

    2013-01-01

    Knowledge specialization, such as that present in cross-functional teams, produces both positive and negative outcomes. Our research investigated how unique expertise can lead to feelings of ostracism in the form of being out of the loop. Compared to group members with shared expertise, members with unique expertise felt out of the loop and…

  13. Curricular Design and Implementation as a Site of Teacher Expertise and Learning

    Science.gov (United States)

    Peercy, Megan Madigan; Martin-Beltrán, Melinda; Silverman, Rebecca D.; Daniel, Shannon

    2015-01-01

    Previously, research about teacher expertise has adhered to relatively fixed notions of teacher expertise. However, in this study, we share data from teacher study group (TSG) meetings, which demonstrate a dynamic understanding of teacher expertise. In these meetings, teachers discursively positioned themselves, their colleagues, and the research…

  14. Toward an Integrated Model of Expertise Redevelopment and Its Implications for HRD

    Science.gov (United States)

    Grenier, Robin S.; Kehrhahn, Marijke

    2008-01-01

    Traditionally, expertise theories have focused on skills acquisition with little regard for the domain or contextual factors affecting expertise development and retention. Because the development, retention, and recruiting of individuals with expertise is critical to organizational success, it is essential that HRD professionals understand the…

  15. A voxel-based morphometric magnetic resonance imaging study of the brain detects age-related gray matter volume changes in healthy subjects of 21–45 years old

    Science.gov (United States)

    El-Beltagi, Ahmed; Cherian, Jigi; Gejo, Grace; Al-Jazzaf, Abrar; Ismail, Mohammad

    2015-01-01

    Previous and more recent work of analyzing structural changes in the brain suggest that certain brain regions such as the frontal lobe are among the brain regions profoundly affected by the aging process across males and females. Also, a unified model of structural changes in a normally aging brain is still lacking. The present study investigated age-related structural brain changes in gray matter from young to early middle-age adulthood for males and females. Magnetic resonance images of 215 normal and healthy participants between the ages of 21–45 years were acquired. Changes in gray matter were assessed using voxel-based morphometry and gray matter volumetric analysis. The results showed significant decrease in gray matter volume between the youngest and oldest groups in the following brain regions: frontal, temporal, and parietal lobes. Grey matter loss in the frontal lobe was among the most widespread of all brain regions across the comparison groups that showed significant age-related changes in grey matter for both males and females. This work provides a unique pattern of age-related decline of normal and healthy adult males and females that can aid in the future development of a unified model of normal brain aging. PMID:26306927

  16. A voxel-based morphometric magnetic resonance imaging study of the brain detects age-related gray matter volume changes in healthy subjects of 21-45 years old.

    Science.gov (United States)

    Bourisly, Ali K; El-Beltagi, Ahmed; Cherian, Jigi; Gejo, Grace; Al-Jazzaf, Abrar; Ismail, Mohammad

    2015-10-01

    Previous and more recent work of analyzing structural changes in the brain suggest that certain brain regions such as the frontal lobe are among the brain regions profoundly affected by the aging process across males and females. Also, a unified model of structural changes in a normally aging brain is still lacking. The present study investigated age-related structural brain changes in gray matter from young to early middle-age adulthood for males and females. Magnetic resonance images of 215 normal and healthy participants between the ages of 21-45 years were acquired. Changes in gray matter were assessed using voxel-based morphometry and gray matter volumetric analysis. The results showed significant decrease in gray matter volume between the youngest and oldest groups in the following brain regions: frontal, temporal, and parietal lobes. Grey matter loss in the frontal lobe was among the most widespread of all brain regions across the comparison groups that showed significant age-related changes in grey matter for both males and females. This work provides a unique pattern of age-related decline of normal and healthy adult males and females that can aid in the future development of a unified model of normal brain aging. © The Author(s) 2015.

  17. SOFTWARE FOR AUTOMATION OF STATE ECOLOGICAL PROJECT EXPERTISE

    Directory of Open Access Journals (Sweden)

    V. A. Rybak

    2011-01-01

    Full Text Available A new information technology for automation of state ecological project expertise  has been developed in the process of research. The technology is intended for specialists of Ministry of Natural Resources and Environmental Protection of the Republic of Belarus. The paper contains description of the gridding to the GIS electronic maps of situation plans concerning location of facilities used for economic activities and diagrams of environment contamination sources, information technology for an analysis of calculation results in respect of dispersion of pollutant emissions, functions pertaining to reflection of  calculation results on electronic topographic map.

  18. Sway regularity reflects attentional involvement in postural control: effects of expertise, vision and cognition.

    Science.gov (United States)

    Stins, J F; Michielsen, M E; Roerdink, M; Beek, P J

    2009-07-01

    We examined the time varying (dynamic) characteristics of center-of-pressure (COP) fluctuations in a group of 14 preadolescent dancers and 16 age-matched non-dancers. The task involved maintaining balance for 20s with eyes open or eyes closed, and with or without performing an attention demanding cognitive task (word memorization). The main finding was that the time-dependent structure of the COP trajectories of dancers exhibited less regularity than that of non-dancers, as evidenced by a higher sample entropy (decreased statistical regularity). COP irregularity also increased during secondary task performance but decreased during standing with eyes closed. The combined findings indicate that the degree of attentional involvement in postural control - as reflected in the COP dynamics - varies along an automaticity continuum, and is affected by relatively stable subject characteristics (expertise) and more transient factors related to the attentional requirements of the task at hand.

  19. Science in the public sphere a history of lay knowledge and expertise

    CERN Document Server

    Nieto-Galan, Agusti

    2016-01-01

    Science in the Public Sphere presents a broad yet detailed picture of the history of science popularization from the Renaissance to the twenty-first century. Global in focus, it provides an original theoretical framework for analysing the political load of science as an instrument of cultural hegemony and giving a voice to expert and lay protagonists throughout history. Organised into a series of thematic chapters spanning diverse periods and places, this book covers subjects such as the representations of science in print, the media, classrooms and museums, orthodox and heterodox practices, the intersection of the history of science with the history of technology, and the ways in which public opinion and scientific expertise have influenced and shaped one another across the centuries. It concludes by introducing the "participatory turn" of the twenty-first century, a new paradigm of science popularization and a new way of understanding the construction of knowledge. Highly illustrated throughout and coveri...

  20. Expanding subjectivities

    DEFF Research Database (Denmark)

    Lundgaard Andersen, Linda; Soldz, Stephen

    2012-01-01

    A major theme in recent psychoanalytic thinking concerns the use of therapist subjectivity, especially “countertransference,” in understanding patients. This thinking converges with and expands developments in qualitative research regarding the use of researcher subjectivity as a tool to understa...

  1. Dark Matter

    Indian Academy of Sciences (India)

    In Part 11 of this article we learnt that there are compelling evidences from dynamics of spiral galaxies, like our own, that there must be non-luminous matter in them. In this second part we will see that even clusters of galaxies must harbour dark matter. As if this was not enough, it turns out that if our knowledge of the ...

  2. Describing Matter

    Science.gov (United States)

    Adams, Krista; Feagin, Shannon

    2017-01-01

    This article presents a lesson that was designed to explore the scientific descriptions of matter through both the intensive and extensive properties that students successfully added to their vocabulary. Students' examples demonstrated that there were places where their reasoning about matter faltered as related to how the material is the same…

  3. Music Reading Expertise Selectively Improves Categorical Judgment with Musical Notation

    Directory of Open Access Journals (Sweden)

    Yetta Kwailing Wong

    2011-05-01

    Full Text Available Different domains of perceptual expertise often lead to different hemispheric engagement (e.g. Kanwisher et al., 1997. Recent work suggests that the neural substrates engaged in musical reading are shifted from left hemisphere novice processing to bilateral processing in experts (Wong & Gauthier, 2010. To relate this shift to behavior, we tested whether music-reading training improves categorical and coordinate perceptual judgments, which are argued to rely on the left and right hemisphere respectively (Kosslyn et al., 1989. Music-reading experts and novices judged whether two sequentially presented music sequences were identical. The notes were either on a staff (categorical or without a staff (coordinate in either trained or untrained (90° rotated orientations. Experts performed better than novices for categorical judgments, and the advantage was larger for the trained than untrained orientation. The two groups performed similarly for coordinate judgments. Music-reading fluency predicted performance in categorical judgments in the trained orientation in experts, while it predicted performance in all conditions in novices. This suggests that music-reading training selectively improves categorical judgments in the trained orientation, while music-reading ability in novices reflects general perceptual ability with notes. Future studies will clarify how these findings are related to the hemispheric shift in music-reading expertise.

  4. Dance expertise modulates visual sensitivity to complex biological movements.

    Science.gov (United States)

    Orlandi, Andrea; Zani, Alberto; Proverbio, Alice Mado

    2017-09-01

    Motor resonance processes that occur when observing an individual perform an action may be modulated by acquired visuomotor expertise. We used the event-related potential (EEG/ERP) technique to investigate the ability to automatically recognize a subtle difference between very similar novel contemporary dance movements. Twelve professional dancers and twelve non-dancers were shown 212 pairs of videos of complex whole-body movements that lasted 3s. The second of each pair was the repetition of the previous movement or a slight variation of it (deviance). The participants were engaged in a secondary attentional task. Modulation of a larger centro-parietal N400 effect and a reduction of the Late Positivity amplitude (repetition suppression effect) were identified in response to deviant stimuli only in the dancers. Source reconstruction (swLORETA) showed activations in biological motion, body and face processing related areas, and fronto-parietal and limbic systems. The current findings provide evidence that acquired dance expertise modifies the ability to visually code whole-body complex movements. Copyright © 2017 Elsevier Ltd. All rights reserved.

  5. Forensic entomology: implementing quality assurance for expertise work.

    Science.gov (United States)

    Gaudry, Emmanuel; Dourel, Laurent

    2013-09-01

    The Department of Forensic Entomology (Institut de Recherche Criminelle de la Gendarmerie Nationale, France) was accredited by the French Committee of Accreditation (Cofrac's Healthcare section) in October 2007 on the basis of NF EN ISO/CEI 17025 standard. It was the first accreditation in this specific field of forensic sciences in France and in Europe. The present paper introduces the accreditation process in forensic entomology (FE) through the experience of the Department of Forensic Entomology. Based upon the identification of necrophagous insects and the study of their biology, FE must, as any other expertise work in forensic sciences, demonstrate integrity and good working practice to satisfy both the courts and the scientific community. FE does not, strictly speaking, follow an analytical method. This could explain why, to make up for a lack of appropriate quality reference, a specific documentation was drafted and written by the staff of the Department of Forensic Entomology in order to define working methods complying with quality standards (testing methods). A quality assurance system is laborious to set up and maintain and can be perceived as complex, time-consuming and never-ending. However, a survey performed in 2011 revealed that the accreditation process in the frame of expertise work has led to new well-defined working habits, based on an effort at transparency. It also requires constant questioning and a proactive approach, both profitable for customers (magistrates, investigators) and analysts (forensic entomologists).

  6. Expertise facilitates the transfer of anticipation skill across domains.

    Science.gov (United States)

    Rosalie, Simon M; Müller, Sean

    2014-02-01

    It is unclear whether perceptual-motor skill transfer is based upon similarity between the learning and transfer domains per identical elements theory, or facilitated by an understanding of underlying principles in accordance with general principle theory. Here, the predictions of identical elements theory, general principle theory, and aspects of a recently proposed model for the transfer of perceptual-motor skill with respect to expertise in the learning and transfer domains are examined. The capabilities of expert karate athletes, near-expert karate athletes, and novices to anticipate and respond to stimulus skills derived from taekwondo and Australian football were investigated in ecologically valid contexts using an in situ temporal occlusion paradigm and complex whole-body perceptual-motor skills. Results indicated that the karate experts and near-experts are as capable of using visual information to anticipate and guide motor skill responses as domain experts and near-experts in the taekwondo transfer domain, but only karate experts could perform like domain experts in the Australian football transfer domain. Findings suggest that transfer of anticipation skill is based upon expertise and an understanding of principles but may be supplemented by similarities that exist between the stimulus and response elements of the learning and transfer domains.

  7. Expertise and age differences in pilot decision making.

    Science.gov (United States)

    Morrow, Daniel G; Miller, Lisa M Soederberg; Ridolfo, Heather E; Magnor, Clifford; Fischer, Ute M; Kokayeff, Nina K; Stine-Morrow, Elizabeth A L

    2009-01-01

    We examined the influence of age and expertise on pilot decision making. Older and younger expert and novice pilots read at their own pace scenarios describing simpler or more complex flight situations. Then in a standard interview they discussed the scenario problem and how they would respond. Protocols were coded for identification of problem and solutions to this problem, and frequency of elaborations on problem and solution. Scenario comprehension was measured as differential reading time allocation to problem-critical information and scenario memory by the accuracy of answering questions about the scenarios after the interview. All groups accurately identified the problems, but experts elaborated problem descriptions more than novices did. Experts also spent more time reading critical information in the complex scenarios, which may reflect time needed to develop elaborate situation models of the problems. Expertise comprehension benefits were similar for older and younger pilots. Older experts were especially likely to elaborate the problem compared to younger experts, while older novices were less likely to elaborate the problem and to identify appropriate solutions compared to their younger counterparts. The findings suggest age invariance in knowledge-based comprehension relevant to pilot decision making.

  8. Qualitative Understanding of Magnetism at Three Levels of Expertise

    Science.gov (United States)

    Stefani, Francesco; Marshall, Jill

    2010-03-01

    This work set out to investigate the state of qualitative understanding of magnetism at various stages of expertise, and what approaches to problem-solving are used across the spectrum of expertise. We studied three groups: 10 novices, 10 experts-in-training, and 11 experts. Data collection involved structured interviews during which participants solved a series of non-standard problems designed to test for conceptual understanding of magnetism. The interviews were analyzed using a grounded theory approach. None of the novices and only a few of the experts in training showed a strong understanding of inductance, magnetic energy, and magnetic pressure; and for the most part they tended not to approach problems visually. Novices frequently described gist memories of demonstrations, text book problems, and rules (heuristics). However, these fragmentary mental models were not complete enough to allow them to reason productively. Experts-in-training were able to solve problems that the novices were not able to solve, many times simply because they had greater recall of the material, and therefore more confidence in their facts. Much of their thinking was concrete, based on mentally manipulating objects. The experts solved most of the problems in ways that were both effective and efficient. Part of the efficiency derived from their ability to visualize and thus reason in terms of field lines.

  9. Teacher knowledge, instructional expertise, and the development of reading proficiency.

    Science.gov (United States)

    Reid Lyon, G; Weiser, Beverly

    2009-01-01

    Teacher knowledge and instructional expertise have been found in correlational and pre- and posttest studies to be related to student reading achievement. This article summarizes data presented in this special issue and additional research to address four questions: (a) What do expert reading teachers know? (b) Why do teachers need to acquire this knowledge? (c) Do teachers believe they have this knowledge? and (d) Are teachers being adequately prepared to teach reading? Well-designed studies relevant to this topic have been sparse with a noticeable lack of attention given to identifying specific causal links between teacher knowledge, teaching expertise, and student reading achievement. Until the appropriate research designs and methodologies are applied to address the question of causal effects, conclusions about the specific content that teachers must know and the instructional practices that are most beneficial in presenting this content are preliminary at best. Future studies of the effect of essential reading content knowledge must be extended beyond word-level skills to vocabulary, reading comprehension, and writing.

  10. Cognitive innovations and the evolutionary biology of expertise.

    Science.gov (United States)

    Dukas, Reuven

    2017-12-05

    Animal life can be perceived as the selective use of information for maximizing survival and reproduction. All organisms including bacteria and protists rely on genetic networks to build and modulate sophisticated structures and biochemical mechanisms for perceiving information and responding to environmental changes. Animals, however, have gone through a series of innovations that dramatically increased their capacity to acquire, retain and act upon information. Multicellularity was associated with the evolution of the nervous system, which took over many tasks of internal communication and coordination. This paved the way for the evolution of learning, initially based on individual experience and later also via social interactions. The increased importance of social learning also led to the evolution of language in a single lineage. Individuals' ability to dramatically increase performance via learning may have led to an evolutionary cycle of increased lifespan and greater investment in cognitive abilities, as well as in the time necessary for the development and refinement of expertise. We still know little, however, about the evolutionary biology, genetics and neurobiological mechanisms that underlie such expertise and its development.This article is part of the themed issue 'Process and pattern in innovations from cells to societies'. © 2017 The Author(s).

  11. Condensed matter physics

    CERN Document Server

    Isihara, A

    2007-01-01

    More than a graduate text and advanced research guide on condensed matter physics, this volume is useful to plasma physicists and polymer chemists, and their students. It emphasizes applications of statistical mechanics to a variety of systems in condensed matter physics rather than theoretical derivations of the principles of statistical mechanics and techniques. Isihara addresses a dozen different subjects in separate chapters, each designed to be directly accessible and used independently of previous chapters. Topics include simple liquids, electron systems and correlations, two-dimensional

  12. Developing a Deeper Understanding of "Mathematics Teaching Expertise": An Examination of Three Chinese Mathematics Teachers' Resource Systems as Windows into Their Work and Expertise

    Science.gov (United States)

    Pepin, Birgit; Xu, Binyan; Trouche, Luc; Wang, Chongyang

    2017-01-01

    In order to develop a deeper understanding of mathematics teaching expertise, in this study we use the Documentational Approach to Didactics to explore the resource systems of three Chinese mathematics "expert" teachers. Exploiting the Western and Eastern literature we examine the notion of "mathematics teaching expertise", as…

  13. Subject (of documents)

    DEFF Research Database (Denmark)

    Hjørland, Birger

    2017-01-01

    such as concepts, aboutness, topic, isness and ofness are also briefly presented. The conclusion is that the most fruitful way of defining “subject” (of a document) is the documents informative or epistemological potentials, that is, the documents potentials of informing users and advance the development......This article presents and discuss the concept “subject” or subject matter (of documents) as it has been examined in library and information science (LIS) for more than 100 years. Different theoretical positions are outlined and it is found that the most important distinction is between document......-oriented views versus request-oriented views. The document-oriented view conceive subject as something inherent in documents, whereas the request-oriented view (or the policy based view) understand subject as an attribution made to documents in order to facilitate certain uses of them. Related concepts...

  14. Gaseous Matter

    CERN Document Server

    Angelo, Joseph A

    2011-01-01

    aseous Matter focuses on the many important discoveries that led to the scientific interpretation of matter in the gaseous state. This new, full-color resource describes the basic characteristics and properties of several important gases, including air, hydrogen, helium, oxygen, and nitrogen. The nature and scope of the science of fluids is discussed in great detail, highlighting the most important scientific principles upon which the field is based. Chapters include:. Gaseous Matter An Initial Perspective. Physical Characteristics of Gases. The Rise of the Science of Gases. Kinetic Theory of

  15. Impact of major and minor mode on EEG frequency range activities of music processing as a function of expertise.

    Science.gov (United States)

    Jenni, Raoul; Oechslin, Mathias S; James, Clara E

    2017-04-24

    Processing western tonal music may yield distinct brain responses depending on the mode of the musical compositions. Although subjective feelings in response to major and minor mode are well described, the underlying brain mechanisms and their development with increasing expertise have not been thoroughly examined. Using high-density electroencephalography, the present study investigated neuronal activities in the frequency domain in response to polyphone musical compositions in major and minor mode in non-musicians, amateurs and experts. During active listening decrease of theta- and gamma-frequency range activities occurred with increasing expertise in right posterior regions, possibly reflecting enhanced processing efficiency. Moreover, minor and major compositions distinctively modulated synchronization of neuronal activities in high frequency ranges (beta and gamma) in frontal regions, with increased activity in response to minor compositions in musicians and in experts in particular. These results suggest that high-frequency electroencephalographic (EEG) activities carry information about musical mode, showing gradual increase of processing efficiency and sensitivity with musical expertise. Copyright © 2017 Elsevier B.V. All rights reserved.

  16. Bridging Scientific Expertise to Underserved Communities: Initiating and Sustaining Local STEM Outreach

    Science.gov (United States)

    Anderson, Tania; Kenney, Jessica; Maple, John

    2017-06-01

    This presentation will feature effective outreach strategies used to recruit, engage, and sustain student involvement from underserved communities in out-of-school science outreach programs. For example, one strategy is to partner with subject matter experts to provide your audience with a deeper understanding of and a unique perspective on current science. Join us to learn more about how you can initiate and sustain a STEM based program in your local community.

  17. The Relationship between Dry Matter Increase of Seed and Shoot during the Seed-Filling Period in Three Kinds of Soybeans with Different Growth Habits Subjected to Shading and Thinning

    National Research Council Canada - National Science Library

    Kakiuchi, Jin; Kobata, Tohru

    2006-01-01

    The ratio of dry-matter increase in seed (S) to that in shoot (W), referred to as RS/W, during the seed-filling period may reflect the balance between the assimilate supply and the sink capacity of harvest organs...

  18. Expertise of using striking techniques for power stroke in badminton.

    Science.gov (United States)

    Zhu, Qin

    2013-10-01

    Two striking techniques (fast swing and angled striking) were examined to see if they allowed effective use of string tension for the power stroke in badminton. 12 participants (4 novices, 4 recreational, and 4 expert badminton players) were recorded by a fast-speed camera while striking a shuttlecock with racquets of 8 different string tensions. The peak speed of the shuttlecock, the racquet angle and the shuttlecock angle were analyzed. The results showed that expert players succeeded in using both striking techniques to overcome the constraint of string tension and produce a consistently superior stroke. Failure to use either striking technique resulted in inferior performance that was constrained by string tension. Expertise in badminton allows the necessary motor adjustments based on the affordance perception of the string tension.

  19. Unitizing worker expertise and maximizing the brain reward centers

    Energy Technology Data Exchange (ETDEWEB)

    Martinez, Anthony Bert [Los Alamos National Laboratory

    2010-01-01

    People are experts when it comes to the work they do; unfortunately their expertise is not utilized as frequently as it could be. More opportunities need to be provided that allow people to participate in the design of their work including: accident investigations, job planning, and process improvements. Many employers use some form of job hazard analysis process to identify and document hazards and controls, but the front line worker is rarely involved. This presentation will show the core principles supporting employee involvement, provide examples where workers had brilliant ideas but no one listened, and provide examples where workers were given the opportunity to use their expertise to improve occupational safety. According to Abraham Maslow's Hierarch of Needs model, one essential human need is to be innovative and solve problems. Advances in brain science have proven, through functional magnetic resonance imaging (fMRI) studies, the brain reward pathway is activated when people are recognized for their intellectual contributions. As people contribute their expertise to improve occupational safety more frequently they will feel a sense of gratification. In addition, safety professionals will have more time to spend on strategic planning of emerging occupational safety issues. One effect of the current global recession is that SH&E professionals are asked to do more with less. Therefore, to be successful it is essential that SH&E professionals incorporate worker expertise in job planning. This will be illustrated in the presentation through an example where a worker had the answer to a difficult decision on appropriate personal protective equipment for a job but no one asked the worker for his idea during the job planning phase. Fortunately the worker was eventually consulted and his recommendation for the appropriate personal protective equipment for the job was implemented before work began. The goal of this presentation is to expand the awareness and

  20. Neural basis of nonanalytical reasoning expertise during clinical evaluation.

    Science.gov (United States)

    Durning, Steven J; Costanzo, Michelle E; Artino, Anthony R; Graner, John; van der Vleuten, Cees; Beckman, Thomas J; Wittich, Christopher M; Roy, Michael J; Holmboe, Eric S; Schuwirth, Lambert

    2015-03-01

    Understanding clinical reasoning is essential for patient care and medical education. Dual-processing theory suggests that nonanalytic reasoning is an essential aspect of expertise; however, assessing nonanalytic reasoning is challenging because it is believed to occur on the subconscious level. This assumption makes concurrent verbal protocols less reliable assessment tools. Functional magnetic resonance imaging was used to explore the neural basis of nonanalytic reasoning in internal medicine interns (novices) and board-certified staff internists (experts) while completing United States Medical Licensing Examination and American Board of Internal Medicine multiple-choice questions. The results demonstrated that novices and experts share a common neural network in addition to nonoverlapping neural resources. However, experts manifested greater neural processing efficiency in regions such as the prefrontal cortex during nonanalytical reasoning. These findings reveal a multinetwork system that supports the dual-process mode of expert clinical reasoning during medical evaluation.

  1. Musical expertise and statistical learning of musical and linguistic structures

    Directory of Open Access Journals (Sweden)

    Clément eFrancois

    2011-07-01

    Full Text Available Adults and infants can use the statistical properties of syllable sequences to extract words from continuous speech. Here we present a review of a series of electrophysiological studies investigating 1 Speech segmentation resulting from exposure to spoken and sung sequences 2 The extraction of linguistic versus musical information from a sung sequence3 Differences between musicians and nonmusicians in both linguistic and musical dimensions. The results show that segmentation is better after exposure to sung compared to spoken material and moreover, that linguistic structure is better learned than the musical structure when using sung material. In addition, musical expertise facilitates the learning of both linguistic and musical structures. Finally, an electrophysiological approach, which directly measures brain activity, appears to be more sensitive than a behavioral one.

  2. Dirac matter

    CERN Document Server

    Rivasseau, Vincent; Fuchs, Jean-Nöel

    2017-01-01

    This fifteenth volume of the Poincare Seminar Series, Dirac Matter, describes the surprising resurgence, as a low-energy effective theory of conducting electrons in many condensed matter systems, including graphene and topological insulators, of the famous equation originally invented by P.A.M. Dirac for relativistic quantum mechanics. In five highly pedagogical articles, as befits their origin in lectures to a broad scientific audience, this book explains why Dirac matters. Highlights include the detailed "Graphene and Relativistic Quantum Physics", written by the experimental pioneer, Philip Kim, and devoted to graphene, a form of carbon crystallized in a two-dimensional hexagonal lattice, from its discovery in 2004-2005 by the future Nobel prize winners Kostya Novoselov and Andre Geim to the so-called relativistic quantum Hall effect; the review entitled "Dirac Fermions in Condensed Matter and Beyond", written by two prominent theoreticians, Mark Goerbig and Gilles Montambaux, who consider many other mater...

  3. Antimatter Matters

    CERN Multimedia

    CERN

    2016-01-01

    This video is a teaser-introduction to the Antimatter Matters exhibtion at the Royal Society's Summer Science exhibition July 4-10 2016. The exhibition is jointly organised and hosted by UK members of the ALPHA and LHCb collaborations.

  4. Visual expertise for horses in a case of congenital prosopagnosia.

    Science.gov (United States)

    Weiss, Nilly; Mardo, Elite; Avidan, Galia

    2016-03-01

    A major question in the domain of face perception is whether faces comprise a distinct visual category that is processed by specialized mechanisms, or whether face processing merely represents an extreme case of visual expertise. Here, we examined O.H, a 22 years old woman with congenital prosopagnosia (CP), who despite her severe deficits in face processing, acquired superior recognition skills for horses. To compare the nature of face and horse processing, we utilised the inversion manipulation, known to disproportionally affect faces compared to other objects, with both faces and horses. O.H's performance was compared to data obtained from two control groups that were either horse experts, or non-experts. As expected, both control groups exhibited the face inversion effect, while O.H did not show the effect, but importantly, none of the participants showed an inversion effect for horses. Finally, gaze behaviour toward upright and inverted faces and horses was indicative of visual skill but in a distinct fashion for each category. Particularly, both control groups showed different gaze patterns for upright compared to inverted faces, while O.H presented a similar gaze pattern for the two orientations that differed from that of the two control groups. In contrast, O.H and the horse experts exhibited a similar gaze pattern for upright and inverted horses, while non-experts showed different gaze patterns for different orientations. Taken together, these results suggest that visual expertise can be acquired independently from the mechanisms mediating face recognition. Copyright © 2015 Elsevier Ltd. All rights reserved.

  5. Adaptation, expertise, and giftedness: towards an understanding of cortical, subcortical, and cerebellar network contributions.

    Science.gov (United States)

    Koziol, Leonard F; Budding, Deborah Ely; Chidekel, Dana

    2010-12-01

    Current cortico-centric models of cognition lack a cohesive neuroanatomic framework that sufficiently considers overlapping levels of function, from "pathological" through "normal" to "gifted" or exceptional ability. While most cognitive theories presume an evolutionary context, few actively consider the process of adaptation, including concepts of neurodevelopment. Further, the frequent co-occurrence of "gifted" and "pathological" function is difficult to explain from a cortico-centric point of view. This comprehensive review paper proposes a framework that includes the brain's vertical organization and considers "giftedness" from an evolutionary and neurodevelopmental vantage point. We begin by discussing the current cortico-centric model of cognition and its relationship to intelligence. We then review an integrated, dual-tiered model of cognition that better explains the process of adaptation by simultaneously allowing for both stimulus-based processing and higher-order cognitive control. We consider the role of the basal ganglia within this model, particularly in relation to reward circuitry and instrumental learning. We review the important role of white matter tracts in relation to speed of adaptation and development of behavioral mastery. We examine the cerebellum's critical role in behavioral refinement and in cognitive and behavioral automation, particularly in relation to expertise and giftedness. We conclude this integrated model of brain function by considering the savant syndrome, which we believe is best understood within the context of a dual-tiered model of cognition that allows for automaticity in adaptation as well as higher-order executive control.

  6. CLIL and CALL for a teacher’s expertise: an international training experience

    Directory of Open Access Journals (Sweden)

    Letizia Cinganotto

    2016-07-01

    Full Text Available The paper deals with the link between Content and Language Integrated Learning (CLIL and Computer Assisted Language Learning (CALL, that is the use of ICT to enhance language teaching-learning and the teaching of subject content in a foreign language. Starting from this background, the paper describes an online training initiative promoted by the authors within an international community of peers, made up of teachers, trainers and educators from all over the world, named “Techno-CLIL for EVO 2016”. The initiative was aimed at supporting and guiding participants to discover and experiment digital tools for CLIL lessons, offering the opportunity to share ideas, materials, good practices in an international perspective. Particular attention is devoted to the personal and professional enrichment and growth this training pathway may have helped the 5.000 participants to achieve.CLIL e CALL nell’expertise del docente: un’esperienza di formazione internazionaleIl contributo focalizza l’attenzione sulla correlazione tra Content and Language Integrated Learning (CLIL e Computer Assisted Language Learning (CALL, cioè l’uso delle tecnologie per una maggiore efficacia dell’insegnamento-apprendimento delle lingue o di contenuti disciplinari veicolati in lingua straniera. Partendo da questo background, il contributo descrive una iniziativa di formazione online in lingua inglese promossa dalle autrici all’interno di un contesto internazionale, costituito da una comunità di pratica di docenti, formatori, educatori di tutto il mondo, denominata “Techno-CLIL for EVO 2016”. L’iniziativa mirava a sensibilizzare e guidare i partecipanti nella scoperta e sperimentazione della didattica CLIL in modalità digitale, offrendo l’opportunità di un confronto ed uno scambio di idee, materiali, buone pratiche in una prospettiva internazionale. Particolarmente significative le ricadute che questo percorso ha comportato per i circa 5.000 partecipanti

  7. SUBJECT INDEX

    Indian Academy of Sciences (India)

    Subject Index. Variation of surface electric field during geomagnetic disturbed period at Maitri, Antarctica. 1721. Geomorphology. A simple depression-filling method for raster and irregular elevation datasets. 1653. Decision Support System integrated with Geographic. Information System to target restoration actions in water-.

  8. A voxel-based morphometric magnetic resonance imaging study of the brain detects age-related gray matter volume changes in healthy subjects of 21–45 years old

    OpenAIRE

    Bourisly, Ali K; El-Beltagi, Ahmed; Cherian, Jigi; Gejo, Grace; Al-Jazzaf, Abrar; Ismail, Mohammad

    2015-01-01

    Previous and more recent work of analyzing structural changes in the brain suggest that certain brain regions such as the frontal lobe are among the brain regions profoundly affected by the aging process across males and females. Also, a unified model of structural changes in a normally aging brain is still lacking. The present study investigated age-related structural brain changes in gray matter from young to early middle-age adulthood for males and females. Magnetic resonance images of 215...

  9. You can’t teach speed: sprinters falsify the deliberate practice model of expertise

    OpenAIRE

    Michael P. Lombardo; Deaner, Robert O.

    2014-01-01

    Many scientists agree that expertise requires both innate talent and proper training. Nevertheless, the highly influential deliberate practice model (DPM) of expertise holds that talent does not exist or makes a negligible contribution to performance. It predicts that initial performance will be unrelated to achieving expertise and that 10 years of deliberate practice is necessary. We tested these predictions in the domain of sprinting. In Studies 1 and 2 we reviewed biographies of 15 Olympic...

  10. Neural basis of music imagery and the effect of musical expertise.

    Science.gov (United States)

    Herholz, Sibylle C; Lappe, Claudia; Knief, Arne; Pantev, Christo

    2008-12-01

    Although the influence of long-term musical training on the processing of heard music has been the subject of many studies, the neural basis of music imagery and the effect of musical expertise remain insufficiently understood. By means of magnetoencephalography (MEG) we compared musicians and nonmusicians in a musical imagery task with familiar melodies. Subjects listened to the beginnings of the melodies, continued them in their imagination and then heard a tone which was either a correct or an incorrect further continuation of the melody. Only in musicians was the imagery of these melodies strong enough to elicit an early preattentive brain response to unexpected incorrect continuations of the imagined melodies; this response, the imagery mismatch negativity (iMMN), peaked approximately 175 ms after tone onset and was right-lateralized. In contrast to previous studies the iMMN was not based on a heard but on a purely imagined memory trace. Our results suggest that in trained musicians imagery and perception rely on similar neuronal correlates, and that the musicians' intense musical training has modified this network to achieve a superior ability for imagery and preattentive processing of music.

  11. Children's Differentiation between Beliefs about Matters of Fact and Matters of Opinion

    Science.gov (United States)

    Banerjee, Robin; Yuill, Nicola; Larson, Christina; Easton, Kate; Robinson, Elizabeth; Rowley, Martin

    2007-01-01

    Two experiments investigated children's implicit and explicit differentiation between beliefs about matters of fact and matters of opinion. In Experiment 1, 8- to 9-year-olds' (n = 88) explicit understanding of the subjectivity of opinions was found to be limited, but their conformity to others' judgments on a matter of opinion was considerably…

  12. Musical expertise induces audiovisual integration of abstract congruency rules

    National Research Council Canada - National Science Library

    Paraskevopoulos, Evangelos; Kuchenbuch, Anja; Herholz, Sibylle C; Pantev, Christo

    2012-01-01

    .... The present study used magnetoencephalography in human subjects to identify the neural correlates of an audiovisual incongruency response, which is not generated due to incongruency of the unisensory...

  13. The effects of alphabet and expertise on letter perception.

    Science.gov (United States)

    Wiley, Robert W; Wilson, Colin; Rapp, Brenda

    2016-08-01

    Long-standing questions in human perception concern the nature of the visual features that underlie letter recognition and the extent to which the visual processing of letters is affected by differences in alphabets and levels of viewer expertise. We examined these issues in a novel approach using a same-different judgment task on pairs of letters from the Arabic alphabet with 2 participant groups: 1 with no prior exposure to Arabic and 1 with reading proficiency. Hierarchical clustering and linear mixed-effects modeling of reaction times and accuracy provide evidence that both the specific characteristics of the alphabet and observers' previous experience with it affect how letters are perceived and visually processed. The findings of this research further our understanding of the multiple factors that affect letter perception and support the view of a visual system that dynamically adjusts its weighting of visual features as expert readers come to more efficiently and effectively discriminate the letters of the specific alphabet they are viewing. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

  14. Developing English Communication Expertise for Engineers in the Global Age

    Science.gov (United States)

    Ono, Yoshimasa A.; Morimura, Kumiko

    This paper discusses contents and results of a new graduate course “English for Engineers and Scientists” given at School of Engineering, The University of Tokyo. This course is a new attempt to develop English communication expertise for engineering graduate students: how to write technical papers and how to make technical presentations in English. For these purposes, differences in the writing styles and in the sentence structures of English and Japanese are stressed: conclusions come first in English versus conclusions come last in Japanese; the three-step style of introduction, body, and conclusion in English versus the four-step style of ki-sho-ten-ketsu in Japanese. In addition, proper styles of technical papers (rhetoric) and related grammatical points are discussed. Technical presentation course consists of four-week lecture and seven-week practice session. In the lecture, essential points of technical presentations in English are discussed in detail, and in the practice session students‧ presentation skills are improved through guidance and instructions given by native-speaker moderators. The class evaluation results show that most students have obtained necessary skills of technical presentation, indicating that the combined course of lecture and practice session is essential for training students to make better technical presentations in English.

  15. Critical Pedagogy as Collective Social Expertise in Higher Education

    Directory of Open Access Journals (Sweden)

    Juha Suoranta

    2006-10-01

    Full Text Available In this article, dedicated to the revolutionary educational work of Peter McLaren, we will deal with the question of practical teaching methods in higher education from the point of view of critical pedagogy. We argue that nowadays teaching and learning in educational and social sciences are too often meaningless from the point of view of critical collective learning. Thus the central task in critical pedagogy, and in reform of higher education, is to understand the oppressive aspects of present college life and overall society in order to generate pedagogical, individual and societal transformation while developing pedagogical strategies and study methods that work toward the elimination of various forms of subordination based on class, gender, race and sexual orientation, and strengthen students’ possibilities for genuine collective learning while empowering them to fight against inequalities in the world. Our reflections stem from our academic life and teaching experiences both in Finland and the U.S. We suggest that in order to teach critically, educators need to use more collaborative and collective teaching and learning methods. Thus the idea of collective social expertise becomes a core aim of teaching in the context of critical pedagogy.

  16. CIVA: an expertise platform for simulation and processing NDT data.

    Science.gov (United States)

    Calmon, P; Mahaut, S; Chatillon, S; Raillon, R

    2006-12-22

    Ultrasonic modeling and simulation are more and more widely used by the different actors of industrial NDT. The applications are numerous and show a great variety: help for diagnosis, data reconstruction, performance demonstration, probe design and inspection parameters settling, virtual testing etc. The CEA (the French Atomic Energy Commission) is strongly involved in this evolution with the development of the CIVA expertise platform which gathers in the same software advanced processing and modeling tools. In the aim of fulfilling requirements of an intensive use the choice has been made to mainly adopt semi-analytical approximated methods. The wave propagation modeling is based on an integral formulation of the radiated field and applies the so-called pencil method. The modeling of beam-defect interaction and echoes formation mechanisms apply approximated theories such as Kirchhoff approximation or GTD. Over the years and with successive versions of the software, this approach is enriched by adaptations and improvements of the existing models or by new models, in order to extend the field of applicability of the simulation.

  17. Moody experts --- How mood and expertise influence judgmental anchoring

    Directory of Open Access Journals (Sweden)

    Birte Englich

    2009-02-01

    Full Text Available Anchoring effects, the assimilation of numerical estimates to previously considered standards, are highly robust. Two studies examined whether mood and expertise jointly moderate the magnitude of anchoring. Previous research has demonstrated that happy mood induces judges to process information in a less thorough manner than sad mood, which means that happy judges tend to be more susceptible to unwanted influences. However, this may not be true for anchoring effects. Because anchoring results from an elaborate process of selective knowledge activation, more thorough processing should lead to more anchoring; as a result, sad judges should show stronger anchoring effects than happy judges and happy judges may even remain uninfluenced by the given anchors. Because information processing of experts may be relatively independent of their mood, however, mood may influence anchoring only in non-experts. Results of two studies on legal decision-making (Study 1 and numeric estimates (Study 2 are consistent with these expectations. These findings suggest that, at least for non-experts, positive mood may eliminate the otherwise robust anchoring effect.

  18. Stock investment funds in Brazil: performance and management expertise

    Directory of Open Access Journals (Sweden)

    Paulo Rogério Faustino Matos

    2012-01-01

    Full Text Available This article analyzes the stock investment fund market in Brazil and proposes dynamic rankings constructed from different risk-return metrics, during the period from 1998 to 2009. We find an uncommon level of persistence, mainly among the best performing funds, due to the expertise of the managers. The quadrimestral rebalancing of the portfolios based on these rankings permits inferring that in scenarios characterized as economic booms or recovery of financial markets, the strategies with equal participation in winner funds provides significantly higher average monthly gains, reduction of risk associated with diversification and consequently enhanced performance in relation to market or sector benchmarks. This evidence is robust to the use of different performance metrics for fund selection, indicating that active investors in winning funds demand good performance not only in terms of the Sharpe ratio, but also with respect to other metrics, such as the Treynor, Calmar and Sortino ratios. In these optimistic scenarios, only the industrial sector index (INDX provided returns compatible with those of these fund’s portfolios. However, during periods of crisis, no strategy involving the funds managed to provide hedge levels characteristic of the electric energy sector index (IEE, so it can be said that the majority of investing strategies are dominated in gain-risk criteria by sector or market indexes, with the exception of value-weighted portfolios composed of losing funds, a signal that the usual passive investors in large funds indexed to the Ibovespa can be presenting a greater level of inertia.

  19. [Nephrologist and ICU: the need of new expertise].

    Science.gov (United States)

    Mariano, Filippo; Pozzato, Marco

    2017-04-01

    Episodes of dialytic Acute Kidney Injury (AKI stage III KDIGO) can lead to chronic kidney disease (CKD), even after a long time. Prelimary data indicate that the relationship between AKI and CKD is affected by dialysis technical modalities and factors in part modifiable, such as an early dialysis timing, dose adeguacy, continuous treatment, use of biocompatible membranes and regional citrate anticoagulation. However, in most ICUs involvement of nephrologist consultant is marginal. Of more, nephrological follow-up after discharge, which allows to slow down the progression rate of CKD even just by a correct pharmacological and dietetic approach (sartans, ACEis), is an uncommon practice. Indeed, a better organ survival could lead to a delay of the dialytic treatment, reducing the costs sustained by the National Health Service. To face such challenges locally, in Piedmont and Aosta Valley the Dialysis Units were required to put themselves at disposal for ICU needs both in terms of dedicated staff and resources. Additionally, since many years consultant nephrologists have established the "Acuti" work-group, which has been able to provide an high level of professional expertise, while incentivizing innovation and training in ICU environment. In order to cope with these new requirements a redefinition of the nephrologist's role in ICU through a constant exchange with the intensive care background is needed. Copyright by Società Italiana di Nefrologia SIN, Rome, Italy.

  20. Measurements of the Russian identity: Sociological assessments and humanitarian expertise

    Directory of Open Access Journals (Sweden)

    A A Onosov

    2016-12-01

    Full Text Available Within the framework of the existing scientific approaches, the authors consider the process of ethnization of the Russians’ mass consciousness under the expanding internal and external labor migration in Russia. The article presents the results of the situational analysis and humanitarian expertise of the set of key challenges determined by the migration. Based on the statistics, opinion polls data and expert assessments the article describes the empirical model of the identity of ethnic Russian population of Moscow and the Moscow region as the major centers of attraction for international migrants. The comprehensive analysis of the issues and controversies of the labor migration in the region and relationships of ethnic groups living in the region is preceded by the description of the identity of native inhabitants of the region as perceived by the ethnic Russian population. To measure the identity for the axiological ranking the authors use a number of relatively independent variables besides ethnic (national identity: religious involvement, civilizational orientation, cultural, professional, territorial and other important features. Thus, the authors present a multi-dimensional space of identity, in which each dimension has its specific meaning for personal self-identification and its own scale for assessing particular attributes.

  1. Hello World! - Experiencing Usability Methods without Usability Expertise

    Science.gov (United States)

    Eriksson, Elina; Cajander, Åsa; Gulliksen, Jan

    How do you do usability work when no usability expertise is available? What happens in an organization when system developers, with no previous HCI knowledge, after a 3-day course, start applying usability methods, and particularly field studies? In order to answer these questions qualitative data were gathered through participatory observations, a feed back survey, field study documentation and interviews from 47 system developers from a public authority. Our results suggest that field studies enhance the developer’s understanding of the user perspective, and provide a more holistic overview of the use situation, but that some developers were unable to interpret their observations and see solutions to the users’ problems. The field study method was very much appreciated and has now become standard operating procedure within the organization. However, although field studies may be useful, it does not replace the need for usability pro fes sion als, as their knowledge is essential for more complex observations, analysis and for keeping the focus on usability.

  2. Musical Sight-Reading Expertise: Cross Modality Investigations

    Directory of Open Access Journals (Sweden)

    Drai-Zerbib Veronique

    2011-05-01

    Full Text Available It is often said that expert musicians are capable of hearing what they read and vice versa. This suggests that they are able to process and to integrate multimodal information. The study investigates this issue with an eye-tracking technique. Two groups of musicians chosen on the basis of their level of expertise (expert and non-experts had to read excerpts of classical piano music and play them on a keyboard. In half the conditions, the participants heard the music before the reading phases. The excerpts contained suggested fingering of variable difficulty (difficult, easy, or no fingering. Analyses of first-pass fixation duration, second-pass fixation duration, probability of refixations, and playing mistakes validated the hypothesized modal independence of information among expert musicians as compared to non-experts. The results are discussed in terms of amodal memory for expert musicians, and they extend clearly our previous findings (Drai-Zerbib & Baccino, 2005. The talk will demonstrate that more experienced performers are better able to transfer learning from one modality to another, which can be in support of theoretical work by Ericsson and Kintsch (1995: more experienced performers better integrate knowledge across modalities. This view relies on the general flexibility shown in the experts' behaviour.

  3. Bootstrapping white matter segmentation, Eve++

    Science.gov (United States)

    Plassard, Andrew; Hinton, Kendra E.; Venkatraman, Vijay; Gonzalez, Christopher; Resnick, Susan M.; Landman, Bennett A.

    2015-03-01

    Multi-atlas labeling has come in wide spread use for whole brain labeling on magnetic resonance imaging. Recent challenges have shown that leading techniques are near (or at) human expert reproducibility for cortical gray matter labels. However, these approaches tend to treat white matter as essentially homogeneous (as white matter exhibits isointense signal on structural MRI). The state-of-the-art for white matter atlas is the single-subject Johns Hopkins Eve atlas. Numerous approaches have attempted to use tractography and/or orientation information to identify homologous white matter structures across subjects. Despite success with large tracts, these approaches have been plagued by difficulties in with subtle differences in course, low signal to noise, and complex structural relationships for smaller tracts. Here, we investigate use of atlas-based labeling to propagate the Eve atlas to unlabeled datasets. We evaluate single atlas labeling and multi-atlas labeling using synthetic atlases derived from the single manually labeled atlas. On 5 representative tracts for 10 subjects, we demonstrate that (1) single atlas labeling generally provides segmentations within 2mm mean surface distance, (2) morphologically constraining DTI labels within structural MRI white matter reduces variability, and (3) multi-atlas labeling did not improve accuracy. These efforts present a preliminary indication that single atlas labels with correction is reasonable, but caution should be applied. To purse multi-atlas labeling and more fully characterize overall performance, more labeled datasets would be necessary.

  4. Dark Matter

    Indian Academy of Sciences (India)

    The study of gas clouds orbiting in the outer regions of spiral galaxies has revealed that their gravitational at- traction is much larger than the stars alone can provide. Over the last twenty years, astronomers have been forced to postulate the presence of large quantities of 'dark matter' to explain their observations. They are ...

  5. Molecule Matters

    Indian Academy of Sciences (India)

    Fluorescence usually originates from the lowest excited electronic state (singlet) irrespective of the excitation and hence, the fluorescence spectrum of a molecule is characterized by a single band. However, what makes DMABN a very special molecule is that it exhibits dual fluorescence (i.e. emission of. Molecule Matters.

  6. Molecule Matters

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 14; Issue 4. Molecule Matters – van der Waals Molecules - History and Some Perspectives on Intermolecular Forces. E Arunan. Feature Article Volume 14 Issue 4 April 2009 pp 346-356 ...

  7. Molecule Matters

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 11; Issue 9. Molecule Matters - A Chromium Compound with a Quintuple Bond. K C Kumara Swamy. Feature Article Volume 11 Issue 9 September 2006 pp 72-75. Fulltext. Click here to view fulltext PDF. Permanent link:

  8. Science Matters

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 2; Issue 2. Science Matters A Book for Curious Minds. Rohini Godbole. Book Review Volume 2 Issue 2 February 1997 pp 94-95. Fulltext. Click here to view fulltext PDF. Permanent link: http://www.ias.ac.in/article/fulltext/reso/002/02/0094-0095 ...

  9. Molecule Matters

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 13; Issue 5. Molecule Matters - N-Heterocyclic Carbenes - The Stable Form of R2 C: Anil J Elias. Feature Article Volume 13 Issue 5 May 2008 pp 456-467. Fulltext. Click here to view fulltext PDF. Permanent link:

  10. Molecule Matters

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 11; Issue 11. Molecule Matters - Carbon Dioxide: Molecular States and Beyond. T P Radhakrishnan. Feature Article Volume 11 Issue 11 November 2006 pp 88-92. Fulltext. Click here to view fulltext PDF. Permanent link:

  11. Expertise for Teaching Biology Situated in the Context of Genetic Testing

    Science.gov (United States)

    Van der Zande, Paul; Akkerman, Sanne F.; Brekelmans, Mieke; Waarlo, Arend Jan; Vermunt, Jan D.

    2012-07-01

    Contemporary genomics research will impact the daily practice of biology teachers who want to teach up-to-date genetics in secondary education. This article reports on a research project aimed at enhancing biology teachers' expertise for teaching genetics situated in the context of genetic testing. The increasing body of scientific knowledge concerning genetic testing and the related consequences for decision-making indicate the societal relevance of an educational approach based on situated learning. What expertise do biology teachers need for teaching genetics in the personal health context of genetic testing? This article describes the required expertise by exploring the educational practice. Nine experienced teachers were interviewed about the pedagogical content, moral and interpersonal expertise areas concerning how to teach genetics in the personal health context of genetic testing, and the lessons of five of them were observed. The findings showed that the required teacher expertise encompasses specific pedagogical content expertise, interpersonal expertise and a preference for teacher roles and teaching approaches for the moral aspects of teaching in this context. A need for further development of teaching and learning activities for (reflection on) moral reasoning came to the fore. Suggestions regarding how to apply this expertise into context-based genetics education are discussed.

  12. Factors influencing increased expertise for a sustainable workforce at a research centre in South Africa.

    Science.gov (United States)

    Brand, S; Draper, H R; Enarson, D A; Beyers, N; Claassens, M

    2014-12-21

    The Desmond Tutu Tuberculosis (TB) Centre (DTTC), Stellenbosch University, South Africa. 1) To determine whether access to designated funding is associated with the development of expertise in employees, and 2) which other factors are associated with the development of expertise in employees. This was a retrospective study. The target population consisted of all employees at the DTTC during the period 1 January 2004 to 31 December 2011. Improvement in expertise during employment was the primary outcome; the secondary outcome was an increase in educational level linked to the National Qualifications Framework. There was no association between access to funding and expertise development, but an association between the number of months employed and improvement of expertise during employment was observed (OR 1.03, 95%CI 1.02-1.04, P < 0.001), controlling for age at appointment, sex, access to designated funding and education level. The study shows that almost a third of employees increased their expertise, more than 90% had access to designated funding and personnel employed for a longer duration were more likely to experience improvements in expertise. We encourage research organisations in low- and middle-income countries to implement strategies to retain employees in order to build their expertise.

  13. Preparing Teachers To Meet the Needs of Students with Severe Disabilities: Program Configuration and Expertise.

    Science.gov (United States)

    Ryndak, Diane Lea; Clark, Denise; Conroy, Maureen; Stuart, Christy Holthaus

    2001-01-01

    This paper provides information on: (1) nationally recognized masters programs to prepare teachers with expertise in severe disabilities and (2) areas of expertise considered essential for teachers who work with these students. Results are discussed according to the population of students, content courses, field experiences, credit hours, and…

  14. The Curse of Expertise: When More Knowledge Leads to Miscalibrated Explanatory Insight

    Science.gov (United States)

    Fisher, Matthew; Keil, Frank C.

    2016-01-01

    Does expertise within a domain of knowledge predict accurate self-assessment of the ability to explain topics in that domain? We find that expertise increases confidence in the ability to explain a wide variety of phenomena. However, this confidence is unwarranted; after actually offering full explanations, people are surprised by the limitations…

  15. The Value of Digital Tutoring and Accelerated Expertise for Military Veterans

    Science.gov (United States)

    Fletcher, J. D.

    2017-01-01

    This report concerns use of a digital tutor to accelerate veterans' acquisition of expertise and improve their preparation for the civilian workforce. As background, it briefly discusses the need to improve veterans' employability, the technology of digital tutoring, its ability to produce advanced levels of technical expertise, and the design,…

  16. Are Expert Users Always Better Searchers? Interaction of Expertise and Semantic Grouping in Hypertext Search Tasks

    Science.gov (United States)

    Salmeron, L.; Canas, J. J.; Fajardo, I.

    2005-01-01

    The facilitative effect of expertise in hypertext information retrieval (IR) tasks has been widely reported in related literature. However, recent theories of human expertise question the robustness of this result, since previous works have not fully considered the interaction between user and system characteristics. In this study, the constraint…

  17. Neural Correlates of Visual Perceptual Expertise: Evidence from Cognitive Neuroscience Using Functional Neuroimaging

    Science.gov (United States)

    Gegenfurtner, Andreas; Kok, Ellen M.; van Geel, Koos; de Bruin, Anique B. H.; Sorger, Bettina

    2017-01-01

    Functional neuroimaging is a useful approach to study the neural correlates of visual perceptual expertise. The purpose of this paper is to review the functional-neuroimaging methods that have been implemented in previous research in this context. First, we will discuss research questions typically addressed in visual expertise research. Second,…

  18. Individual career initiatives and their influence upon professional expertise development throughout the career

    NARCIS (Netherlands)

    van der Heijden, Beatrice

    2002-01-01

    The present study describes the relationship between three individual predictor variables and the degree of professional expertise of higher level employees in three different career stages. Professional expertise is operationalised by means of five dimensions, i.e. knowledge, meta-cognitive

  19. Defining Expertise across Nations: Myth or Reality of a Global Definition?

    Science.gov (United States)

    Germain, Marie-Line; Ruiz, Carlos E.

    2008-01-01

    Knowledge acquisition and knowledge management have become central managerial themes and skills in the 21st century workplace; so has human expertise. The importance of finding and developing talented "experts" is now a requisite activity of all competitive organizations. This exploratory research investigates how the concept of expertise is…

  20. 77 FR 809 - Request for Proposals for Certification and Testing Expertise for the Ballistic Resistance of...

    Science.gov (United States)

    2012-01-06

    ... of Justice Programs Request for Proposals for Certification and Testing Expertise for the Ballistic Resistance of Personal Body Armor (2008) Standard AGENCY: National Institute of Justice, Department of Justice. ACTION: Request for Proposals for Certification and Testing Expertise. SUMMARY: The National...

  1. Transfer of Expertise: An Eye Tracking and Think Aloud Study Using Dynamic Medical Visualizations

    Science.gov (United States)

    Gegenfurtner, Andreas; Seppanen, Marko

    2013-01-01

    Expertise research has produced mixed results regarding the problem of transfer of expertise. Is expert performance context-bound or can the underlying processes be applied to more general situations? The present study tests whether expert performance and its underlying processes transfer to novel tasks within a domain. A mixed method study using…

  2. Reflections on clinical expertise and silent know-how in voice therapy

    DEFF Research Database (Denmark)

    Iwarsson, Jenny

    2014-01-01

    . The expertise seems to consist partly of silent know-how that, from the outside, may seem improperly related to the personality of the speech-language pathologist or exclusively dependent on the number of years in the field. In this paper, it is suggested that clinical expertise in voice therapy consists...

  3. Normal acquisition of expertise with greebles in two cases of acquired prosopagnosia

    Science.gov (United States)

    Rezlescu, Constantin; Barton, Jason J. S.; Pitcher, David; Duchaine, Bradley

    2014-01-01

    Face recognition is generally thought to rely on different neurocognitive mechanisms than most types of objects, but the specificity of these mechanisms is debated. One account suggests the mechanisms are specific to upright faces, whereas the expertise view proposes the mechanisms operate on objects of high within-class similarity with which an observer has become proficient at rapid individuation. Much of the evidence cited in support of the expertise view comes from laboratory-based training experiments involving computer-generated objects called greebles that are designed to place face-like demands on recognition mechanisms. A fundamental prediction of the expertise hypothesis is that recognition deficits with faces will be accompanied by deficits with objects of expertise. Here we present two cases of acquired prosopagnosia, Herschel and Florence, who violate this prediction: Both show normal performance in a standard greeble training procedure, along with severe deficits on a matched face training procedure. Herschel and Florence also meet several response time criteria that advocates of the expertise view suggest signal successful acquisition of greeble expertise. Furthermore, Herschel’s results show that greeble learning can occur without normal functioning of the right fusiform face area, an area proposed to mediate greeble expertise. The marked dissociation between face and greeble expertise undermines greeble-based claims challenging face-specificity and indicates face recognition mechanisms are not necessary for object recognition after laboratory-based training. PMID:24706834

  4. The contribution of research on expertise to understanding of expert thinking

    Directory of Open Access Journals (Sweden)

    Krnjaić Zora

    2013-01-01

    Full Text Available Expertise is determined based on the high level of mastery of knowledge and skills in different areas of human activities (science, art, sports and other less formal domains. This paper explores the contribution of empirical research on expertise to understanding of the nature of expert thinking. For that purpose we have compiled an overview and performed an analysis of the findings of relevant research on expertise based on different approaches and paradigms. We have included the studies that researched experts singled out based on their exceptional performances in different domains (absolute expertise and the studies based on comparing experts with novices (relative expertise. We have analyzed the studies using different paradigms: psychometric and cognitive paradigms, as well as the new offshoot, the paradigm based on viewing giftedness as developing expertise. Research results provide empirically grounded findings on the characteristics of expert thinking and consistently point to the fact that knowledge is the core of expertise. The characteristics of expert knowledge are operationalized via the quantity and organization of knowledge and the mastery of deep contents and knowledge systems, which enables the recognition of rules, models and information sets, as well as the use of knowledge in further studying, detecting and solving different problems. It can be concluded that research findings on expertise are one of the foundations in the conceptualization of expert thinking. They significantly contribute to obtaining an insight into the way in which knowledge shapes thought and into understanding the mechanisms of demonstrating knowledge in the mental processes of experts.

  5. A dynamic network model of expertise and exceptional performance in sports

    NARCIS (Netherlands)

    den Hartigh, Ruud; van Geert, Paul

    2014-01-01

    Introduction The study of expertise and exceptional performance covers a range from “beginner” to world-class performance. While developing sport expertise a variety of interacting internal and external performance factors are involved, which may differ between athletes (Phillips et al., 2010). The

  6. Electrophysiological correlates of looking at paintings and its association with art expertise.

    Science.gov (United States)

    Pang, C Y; Nadal, M; Müller-Paul, J S; Rosenberg, R; Klein, C

    2013-04-01

    This study investigated the electrocortical correlates of art expertise, as defined by a newly developed, content-valid and internally consistent 23-item art expertise questionnaire in N=27 participants that varied in their degree of art expertise. Participants viewed each 50 paintings, filtering-distorted versions of these paintings and plain colour stimuli under free-viewing conditions whilst the EEG was recorded from 64 channels. Results revealed P3b-/LPC-like bilateral posterior event-related potentials (ERP) that were larger over the right hemisphere than over the left hemisphere. Art expertise correlated negatively with the amplitude of the ERP responses to paintings and control stimuli. We conclude that art expertise is associated with reduced ERP responses to visual stimuli in general that can be considered to reflect increased neural efficiency due to extensive practice in the contemplation of visual art. Copyright © 2012 Elsevier B.V. All rights reserved.

  7. Eyeglasses elicit effects similar to face-like perceptual expertise: evidence from the N170 response.

    Science.gov (United States)

    Cao, Xiaohua; Yang, Qi; Hu, Fengpei

    2016-03-01

    Studies of event-related potentials show that the specific N170 response has become a stable electrophysiological hallmark of objects related to expertise in early perceptual processing. In the present study, we investigated whether eyeglasses can elicit N170 effects similar to those elicited by objects of expertise. Our results showed that the N170 response elicited by eyeglasses was larger than the response elicited by objects that do not generate perceptual expertise (e.g., houses). Importantly, we found that eyeglasses could produce a within-category N170 adaptation effect, similar to that produced in response to objects of expertise (e.g., faces). Our results have revealed for the first time that with a large amount of experience, eyeglasses could evoke the face-like N170 response, which suggested that eyeglasses may become an object of perceptual expertise to some human observers.

  8. Musical expertise modulates early processing of syntactic violations in language

    Directory of Open Access Journals (Sweden)

    Ahren B. Fitzroy

    2013-01-01

    Full Text Available Syntactic violations in speech and music have been shown to elicit an anterior negativity (AN as early as 100 ms after violation onset and a posterior positivity that peaks at roughly 600 ms (P600/LPC. The language AN is typically reported as left-lateralized (LAN, whereas the music AN is typically reported as right-lateralized (RAN. However, several lines of evidence suggest syntactic processing of language and music rely on overlapping neural systems. The current study tested the hypothesis that syntactic processing of speech and music share neural resources by examining whether musical proficiency modulates ERP indices of linguistic syntactic processing. ERPs were measured in response to syntactic violations in sentences and chord progressions in musicians and nonmusicians. Violations in speech were insertion errors in normal and semantically impoverished English sentences. Violations in music were out-of-key chord substitutions from distantly and closely related keys. Phrase-structure violations elicited an AN and P600 in both groups. Harmonic violations elicited an LPC in both groups, blatant harmonic violations also elicited a RAN in musicians only. Cross-domain effects of musical proficiency were similar to previously reported within-domain effects of linguistic proficiency on the distribution of the language AN; syntactic violations in normal English sentences elicited a left-lateralized AN in musicians and a bilateral AN in nonmusicians. The late positivities elicited by violations differed in latency and distribution between domains. These results suggest that initial processing of syntactic violations in language and music relies on shared neural resources in the general population, and that musical expertise results in more specialized cortical organization of syntactic processing in both domains.

  9. Building expertise in glaciology through intense international summer schools

    Science.gov (United States)

    Hock, R.

    2016-12-01

    As the field of glaciology grows in response to recent rapid glacier changes and their potential socio-environmental consequences, the need for well-trained scientists possessing a high level expertise in physical glaciology has increased. Opportunities necessary to cultivate these efforts have not kept pace with the need for increased proficiency in this field. To our knowledge there is no academic degree in glaciology anywhere, but glaciology education, if offered at all, is generally restricted to one or a few individual classes. Glaciology graduate students tend to come from a wide range of background education and often pursue their degree at institutes without any glaciology classes. To cater to this demand we have organized four intense 11-day International Summer Schools in Glaciology which have provided an opportunity for a total of 119 students from around the world to obtain a comprehensive insight into a wide range of topics in glaciology and a more holistic view beyond the scope of their graduate thesis topic. The summer schools were held bi-annually (2010 - 2016) in the tiny village of McCarthy in central Alaska in the immediate vicinity of easily accessible glaciers. The unique setting facilitated close interaction among all participants. The courses included daily lectures, computational exercises, a poster-session and two glacier excursions. In addition, students worked in small teams on a glaciology computer project mentored by one of the 7-9 instructors from several US and foreign institutions, and presented their results in a `mini' student conference at the end of the course. All instructors were required to stay for the entire period. Thus the courses provided a valuable platform for international networking between students and instructors and among the students themselves, thereby fostering future collaborations. This was generally perceived as a major asset of our summer schools.

  10. Both novelty and expertise increase action observation network activity

    Directory of Open Access Journals (Sweden)

    Sook-Lei eLiew

    2013-09-01

    Full Text Available Our experiences with others affect how we perceive their actions. In particular, activity in bilateral premotor and parietal cortices during action observation, collectively known as the action observation network (AON, is modulated by one’s expertise with the observed actions or individuals. However, conflicting reports suggest that AON activity is greatest both for familiar and unfamiliar actions. The current study examines the effects of different types and amounts of experience (e.g., visual, interpersonal, personal on AON activation. fMRI was used to scan 16 healthy participants without prior experience with individuals with amputations (novices, 11 experienced occupational therapists (OTs who had varying amounts of experience with individuals with amputations, and one individual born with below-elbow residual limbs (participant CJ, as they viewed video clips of goal-matched actions performed by an individual with residual limbs and by an individual with hands. Participants were given increased visual exposure to actions performed by both effectors midway through the scanning procedure. Novices demonstrated a large AON response to the initial viewing of an individual with residual limbs compared to one with hands, but this signal was attenuated after they received visual exposure to both effectors. In contrast, OTs, who had moderate familiarity with residual limbs, demonstrated a lower AON response upon initial viewing—similar to novices after they received visual exposure. At the other extreme, CJ, who has extreme familiarity with residual limbs both visually and motorically, shows a largely increased left-lateralized AON response, exceeding that of novices and experienced OTs, when viewing the residual limb compared to hand actions. These results suggest that a nuanced model of AON engagement is needed to explain how cases of both extreme experience (CJ and extreme novelty (novices can result in the greatest AON activity.

  11. Musical Sight-Reading Expertise: Cross-Modality Investigations

    Directory of Open Access Journals (Sweden)

    Veronique Drai-Zerbib

    2011-10-01

    Full Text Available It is often said that experienced musicians are capable of hearing what they read (and vice versa. This suggests that they are able to process and to integrate multimodal information. The study investigates this issue with an eye-tracking technique. Two groups of musicians chosen on the basis of their level of expertise (experts, non-experts had to read excerpts of poorly-known classical piano music and play them on a keyboard. The experiment was run in two consecutive phases during which each excerpt was (1 read without playing and (2 sight-read (read and played. In half the conditions, the participants heard the music before the reading phases. The excerpts contained suggested fingering of variable difficulty (difficult, easy, or no fingering. Analyses of first-pass fixation duration, second-pass fixation duration, probability of refixations, and playing mistakes validated the hypothesized modal independence of information among expert musicians as compared to non-experts. The results are discussed in terms of amodal memory for expert musicians, and they extend clearly our previous findings (Drai-Zerbib & Baccino, 2005. The paper will demonstrate that more experienced performers are better able to transfer learning from one modality to another, which can be in support of theoretical work by Ericsson and Kintsch (1995: more experienced performers better integrate knowledge across modalities. This view relies on the general flexibility shown in the experts' behaviour. The paper will show the correspondence between our results and issues recently obtained in ERPs researches and brain imaging studies (fMRI, MEG, where cerebral structures generally associated with different perceptual modalities were shown to be interconnected or overlap.

  12. Palliative care in paediatric oncology: perceptions, expertise and practices from the perspective of the multidisciplinary team

    Directory of Open Access Journals (Sweden)

    Adriana Ferreira da Silva

    Full Text Available OBJECTIVE: To reveal the perceptions, expertise and practices of multi-professional teams providing palliative care to children in a paediatric oncology unit. The research questions were based on everyday care, facilitations and difficulties, essential aspects of professional approaches, and the inter-disciplinary focus of care for children in palliative care and their families. METHOD: Qualitative, exploratory and descriptive research. Data were collected from June to October 2013 from nine professional multidisciplinary team members by means of a semi-structured interview submitted to thematic analysis. RESULTS: The following four themes emerged from analysis: palliative care: conceptions of the multi-professional team; the construction of singular care; the facilitations and difficulties experienced by the team and significant lessons learned. CONCLUSIONS: The subjects revealed that the team also suffers with the death of a child and, like the family, moves toward the construction of coping mechanisms for the elaboration of mourning. Paradoxically, the team shares knowledge to determine the foundations of a singular therapeutic project and inserts the family in this process so that it can be the protagonist of the child's care.

  13. Towards “Operating Within” the Field: Doctoral Students’ Views of Supervisors’ Discipline Expertise

    Directory of Open Access Journals (Sweden)

    Jan Gube

    2017-01-01

    Full Text Available Aim/Purpose: This paper considers the role of supervisors’ discipline expertise in doctoral learning from a student perspective. Background:\tDoctoral students need to develop expertise in a particular field of study. In this context, developing expertise requires doctoral students to master disciplinary knowledge, conventions and scholarship under the guidance of supervisors. Methodology\t: The study draws on a mixed-method approach, using an online survey and semi-structured interviews conducted with doctoral students. Contribution: The paper brings to the fore the role of supervisors’ discipline expertise on doctoral students’ research progress. Findings: The survey data suggest that doctoral students nominate their supervisors on the basis of their discipline expertise. They also view supervisors’ expertise as key to the development of ‘insider’ knowledge of their doctoral research. Recommendations for Practitioners: Supervisors play a pivotal role in helping doctoral students overcome intellectual barriers by imparting their discipline knowledge as well as balancing satisfactory doctoral completion rate and high quality student experience. Impact on Society\t: Doctoral supervision equips doctoral students with the right arsenal to be able to competently operate within their field and prepares them for their future research or professional career that demands a high level of discipline expertise. Future Research:\tThe scope of the findings leaves open a discussion about the experiences of doctoral students matched with non-discipline expert supervisory teams; for example, the extent of the mismatch and its ramifications.

  14. Gray matter and white matter abnormalities in online game addiction

    Energy Technology Data Exchange (ETDEWEB)

    Weng, Chuan-Bo, E-mail: send007@163.com [Department of Neurosurgery, Anhui Provincial Hospital Affiliated to Anhui Medical University, 17 Lujiang Road, Hefei, Ahui Province 230001 (China); School of Neurosurgery, Anhui Medical University, 81 Meishang Road, Hefei, Anhui Province 230032 (China); Qian, Ruo-Bing, E-mail: rehomail@163.com [Department of Neurosurgery, Anhui Provincial Hospital Affiliated to Anhui Medical University, 17 Lujiang Road, Hefei, Ahui Province 230001 (China); Anhui Provincial Institute of Stereotactic Neurosurgery, 9 Lujiang Road, Hefei, Ahui Province 230001 (China); Fu, Xian-Ming, E-mail: 506537677@qq.com [Department of Neurosurgery, Anhui Provincial Hospital Affiliated to Anhui Medical University, 17 Lujiang Road, Hefei, Ahui Province 230001 (China); Anhui Provincial Institute of Stereotactic Neurosurgery, 9 Lujiang Road, Hefei, Ahui Province 230001 (China); Lin, Bin, E-mail: 274722758@qq.com [School of Neurosurgery, Anhui Medical University, 81 Meishang Road, Hefei, Anhui Province 230032 (China); Han, Xiao-Peng, E-mail: hanxiaopeng@163.com [Department of Psychology, Anhui Provincial Hospital Affiliated to Anhui Medical University, 17 Lujiang Road, Hefei, Ahui Province 230001 (China); Niu, Chao-Shi, E-mail: niuchaoshi@163.com [Department of Neurosurgery, Anhui Provincial Hospital Affiliated to Anhui Medical University, 17 Lujiang Road, Hefei, Ahui Province 230001 (China); Anhui Provincial Institute of Stereotactic Neurosurgery, 9 Lujiang Road, Hefei, Ahui Province 230001 (China); Wang, Ye-Han, E-mail: wangyehan@163.com [Department of Neurosurgery, Anhui Provincial Hospital Affiliated to Anhui Medical University, 17 Lujiang Road, Hefei, Ahui Province 230001 (China); Anhui Provincial Institute of Stereotactic Neurosurgery, 9 Lujiang Road, Hefei, Ahui Province 230001 (China)

    2013-08-15

    Online game addiction (OGA) has attracted greater attention as a serious public mental health issue. However, there are only a few brain magnetic resonance imaging studies on brain structure about OGA. In the current study, we used voxel-based morphometry (VBM) analysis and tract-based spatial statistics (TBSS) to investigate the microstructural changes in OGA and assessed the relationship between these morphology changes and the Young's Internet Addiction Scale (YIAS) scores within the OGA group. Compared with healthy subjects, OGA individuals showed significant gray matter atrophy in the right orbitofrontal cortex, bilateral insula, and right supplementary motor area. According to TBSS analysis, OGA subjects had significantly reduced FA in the right genu of corpus callosum, bilateral frontal lobe white matter, and right external capsule. Gray matter volumes (GMV) of the right orbitofrontal cortex, bilateral insula and FA values of the right external capsule were significantly positively correlated with the YIAS scores in the OGA subjects. Our findings suggested that microstructure abnormalities of gray and white matter were present in OGA subjects. This finding may provide more insights into the understanding of the underlying neural mechanisms of OGA.

  15. Gray matter and white matter abnormalities in online game addiction.

    Science.gov (United States)

    Weng, Chuan-Bo; Qian, Ruo-Bing; Fu, Xian-Ming; Lin, Bin; Han, Xiao-Peng; Niu, Chao-Shi; Wang, Ye-Han

    2013-08-01

    Online game addiction (OGA) has attracted greater attention as a serious public mental health issue. However, there are only a few brain magnetic resonance imaging studies on brain structure about OGA. In the current study, we used voxel-based morphometry (VBM) analysis and tract-based spatial statistics (TBSS) to investigate the microstructural changes in OGA and assessed the relationship between these morphology changes and the Young's Internet Addiction Scale (YIAS) scores within the OGA group. Compared with healthy subjects, OGA individuals showed significant gray matter atrophy in the right orbitofrontal cortex, bilateral insula, and right supplementary motor area. According to TBSS analysis, OGA subjects had significantly reduced FA in the right genu of corpus callosum, bilateral frontal lobe white matter, and right external capsule. Gray matter volumes (GMV) of the right orbitofrontal cortex, bilateral insula and FA values of the right external capsule were significantly positively correlated with the YIAS scores in the OGA subjects. Our findings suggested that microstructure abnormalities of gray and white matter were present in OGA subjects. This finding may provide more insights into the understanding of the underlying neural mechanisms of OGA. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

  16. Effective Field Theory of Majorana Dark Matter

    OpenAIRE

    Han, Huayong; WU, HONGYAN; Zheng, Sibo

    2017-01-01

    Thermal Majorana dark matter is explored from the viewpoint of effective field theory. Completely analytic result for dark matter annihilation into standard model background is derived in order to account relic density. The parameter space subject to the latest LUX, PandaX-II and Xenon-1T limits is shown in a model-independent way. For illustration, applications to singlet-doublet and neutralino dark matter are work out.

  17. Two Troubling Trends in the Conversation Over Whether Clinical Ethics Consultants Have Ethics Expertise.

    Science.gov (United States)

    Brummett, Abram; Ostertag, Christopher J

    2017-04-18

    In a recent issue of the Journal of Medicine and Philosophy, several scholars wrote on the topic of ethics expertise in clinical ethics consultation. The articles in this issue exemplified what we consider to be two troubling trends in the quest to articulate a unique expertise for clinical ethicists. The first trend, exemplified in the work of Lisa Rasmussen, is an attempt to define a role for clinical ethicists that denies they have ethics expertise. Rasmussen cites the dependence of ethical expertise on irresolvable meta-ethical debates as the reason for this move. We argue against this deflationary strategy because it ends up smuggling in meta-ethical assumptions it claims to avoid. Specifically, we critique Rasmussen's distinction between the ethical and normative features of clinical ethics cases. The second trend, exemplified in the work of Dien Ho, also attempts to avoid meta-ethics. However, unlike Rasmussen, Ho tries to articulate a notion of ethics expertise that does not rely upon meta-ethics. Specifically, we critique Ho's attempts to explain how clinical ethicists can resolve moral disputes using what he calls the "Default Principle" and "arguments by parity." We show that these strategies do not work unless those with the moral disagreement already share certain meta-ethical assumptions. Ultimately, we argue that the two trends of (1) attempting to avoid meta-ethics by denying that clinical ethicists have ethics expertise, and (2) attempting to articulate how ethics expertise can be used to resolve disputes without meta-ethics both fail because they do not, in fact, avoid doing meta-ethics. We conclude that these trends detract from what clinical ethics consultation was founded to do and ought to still be doing-provide moral guidance, which requires ethics expertise, and engagement with meta-ethics. To speak of ethicists without ethics expertise leaves their role in the clinic dangerously unclear and unjustified.

  18. Overconfidence in Interval Estimates: What Does Expertise Buy You?

    Science.gov (United States)

    McKenzie, Craig R. M.; Liersch, Michael J.; Yaniv, Ilan

    2008-01-01

    People's 90% subjective confidence intervals typically contain the true value about 50% of the time, indicating extreme overconfidence. Previous results have been mixed regarding whether experts are as overconfident as novices. Experiment 1 examined interval estimates from information technology (IT) professionals and UC San Diego (UCSD) students…

  19. Integrated assessment and management of ambient particulate matter: International perspective and current research in Serbia

    Directory of Open Access Journals (Sweden)

    Bartonova Alena

    2012-01-01

    Full Text Available Air pollution mitigation is a necessity in Serbia, due to its high levels of criteria pollutants in ambient environment. Successful implementation of mitigation measures requires access to sufficient information from national research, and well running and efficient local participatory processes. To support air pollution mitigation in the West Balkan region, the WeBIOPATR project started a series of bi-annual conferences in 2007. They bring together an inter-disciplinary research community and local and national administrations from Serbia and its neighborhood, to present research results from Serbia and countries all over the world, and to share knowledge and best practices of mitigation. The conferences promote research that may support integrated assessment of particulate matter, and further refinement of the “Pressures-State-Impact“ (PSI part of the “Drivers-Pressures-State-Impact-Response“ (DPSIR framework. Integrated approach needs to be underpinned by solid disciplinary research covering e.g. air quality monitoring technologies, atmospheric and further ambient composition, atmospheric modeling, biological effects and human health. WeBIOPATR conferences report on recently performed studies of particulate matter in Serbia and abroad. Through the breadth of subjects and audience, they bring together a wide inter-disciplinary and cross-sectoral expertise in support of translation of research to practice. They also allow to present examples of successful mitigation achieved with the help of strong local participatory environmental governance, demonstrating the increasing recognition of the need to involve both public and private actors. This paper gives the main features of a full chain approach and elements of integrated approach to particulate matter research, summarizes the proceedings of the 3rd WeBIOPATR conference, and in addition, reviews the results of particulate matter monitoring and source identification studies in Serbia

  20. Technology, expertise and social cognition in human evolution.

    Science.gov (United States)

    Stout, Dietrich; Passingham, Richard; Frith, Christopher; Apel, Jan; Chaminade, Thierry

    2011-04-01

    Paleolithic stone tools provide concrete evidence of major developments in human behavioural and cognitive evolution. Of particular interest are evolving cognitive mechanisms implied by the cultural transmission of increasingly complex prehistoric technologies, hypothetically including motor resonance, causal reasoning and mentalizing. To test the relevance of these mechanisms to specific Paleolithic technologies, we conducted a functional magnetic resonance imaging study of Naïve, Trained and Expert subjects observing two toolmaking methods of differing complexity and antiquity: the simple 'Oldowan' method documented by the earliest tools 2.5 million years ago; and the more complex 'Acheulean' method used to produce refined tools 0.5 million years ago. Subjects observed 20-s video clips of an expert demonstrator, followed by behavioural tasks designed to maintain attention. Results show that observational understanding of Acheulean toolmaking involves increased demands for the recognition of abstract technological intentions. Across subject groups, Acheulean compared with Oldowan toolmaking was associated with activation of left anterior intraparietal and inferior frontal sulci, indicating the relevance of resonance mechanisms. Between groups, Naïve subjects relied on bottom-up kinematic simulation in the premotor cortex to reconstruct unfamiliar intentions, and Experts employed a combination of familiarity-based sensorimotor matching in the posterior parietal cortex and top-down mentalizing involving the medial prefrontal cortex. While no specific differences between toolmaking technologies were found for Trained subjects, both produced frontal activation relative to Control, suggesting focused engagement with toolmaking stimuli. These findings support motor resonance hypotheses for the evolutionary origins of human social cognition and cumulative culture, directly linking these hypotheses with archaeologically observable behaviours in prehistory. © 2011 The

  1. Play Matters

    DEFF Research Database (Denmark)

    Sicart (Vila), Miguel Angel

    ? In Play Matters, Miguel Sicart argues that to play is to be in the world; playing is a form of understanding what surrounds us and a way of engaging with others. Play goes beyond games; it is a mode of being human. We play games, but we also play with toys, on playgrounds, with technologies and design......, but not necessarily fun. Play can be dangerous, addictive, and destructive. Along the way, Sicart considers playfulness, the capacity to use play outside the context of play; toys, the materialization of play--instruments but also play pals; playgrounds, play spaces that enable all kinds of play; beauty...

  2. Active matter

    Science.gov (United States)

    Ramaswamy, Sriram

    2017-05-01

    The study of systems with sustained energy uptake and dissipation at the scale of the constituent particles is an area of central interest in nonequilibrium statistical physics. Identifying such systems as a distinct category—Active matter—unifies our understanding of autonomous collective movement in the living world and in some surprising inanimate imitations. In this article I present the active matter framework, briefly recall some early work, review our recent results on single-particle and collective behaviour, including experiments on active granular monolayers, and discuss new directions for the future.

  3. Expertise in Complex Decision Making: The Role of Search in Chess 70 Years After de Groot

    National Research Council Canada - National Science Library

    Connors, Michael H; Burns, Bruce D; Campitelli, Guillermo

    2011-01-01

    One of the most influential studies in all expertise research is de Groot’s (1946) study of chess players, which suggested that pattern recognition, rather than search, was the key determinant of expertise...

  4. Change in the relative contributions of habit and working memory facilitates serial reversal learning expertise in rhesus monkeys.

    Science.gov (United States)

    Hassett, Thomas C; Hampton, Robert R

    2017-05-01

    Functionally distinct memory systems likely evolved in response to incompatible demands placed on learning by distinct environmental conditions. Working memory appears adapted, in part, for conditions that change frequently, making rapid acquisition and brief retention of information appropriate. In contrast, habits form gradually over many experiences, adapting organisms to contingencies of reinforcement that are stable over relatively long intervals. Serial reversal learning provides an opportunity to simultaneously examine the processes involved in adapting to rapidly changing and relatively stable contingencies. In serial reversal learning, selecting one of the two simultaneously presented stimuli is positively reinforced, while selection of the other is not. After a preference for the positive stimulus develops, the contingencies of reinforcement reverse. Naïve subjects adapt to such reversals gradually, perseverating in selection of the previously rewarded stimulus. Experts reverse rapidly according to a win-stay, lose-shift response pattern. We assessed whether a change in the relative control of choice by habit and working memory accounts for the development of serial reversal learning expertise. Across three experiments, we applied manipulations intended to attenuate the contribution of working memory but leave the contribution of habit intact. We contrasted performance following long and short intervals in Experiments 1 and 2, and we interposed a competing cognitive load between trials in Experiment 3. These manipulations slowed the acquisition of reversals in expert subjects, but not naïve subjects, indicating that serial reversal learning expertise is facilitated by a shift in the control of choice from passively acquired habit to actively maintained working memory.

  5. Teaching Evolution: Do State Standards Matter?

    Science.gov (United States)

    Moore, Randy

    2002-01-01

    Explores the relationship of state standards for the teaching of evolution to the actual teaching of that subject. Compares a grading of states for their performance and discusses the question of whether state standards matter. (MM)

  6. Field Studies—Essential Cognitive Foundations for Geoscience Expertise

    Science.gov (United States)

    Goodwin, C.; Mogk, D. W.

    2010-12-01

    Learning in the field has traditionally been one of the fundamental components of the geoscience curriculum. Field experiences have been attributed to having positive impacts on cognitive, affective, metacognitive, mastery of skills and social components of learning geoscience. The development of geoscience thinking, and of geoscience expertise, encompasses a number of learned behaviors that contribute to the progress of Science and the development of scientists. By getting out into Nature, students necessarily engage active and experiential learning. The open, dynamic, heterogeneous and complex Earth system provides ample opportunities to learn by inquiry and discovery. Learning in this environment requires that students make informed decisions and to think critically about what is important to observe, and what should be excluded in the complex overload of information provided by Nature. Students must learn to employ the full range of cognitive skills that include observation, description, interpretation, analysis and synthesis that lead to “deep learning”. They must be able to integrate and rationalize observations of Nature with modern experimental, analytical, theoretical, and modeling approaches to studying the Earth system, and they must be able to iterate between what is known and what is yet to be discovered. Immersion in the field setting provides students with a sense of spatial and temporal scales of natural phenomena that can not be derived in other learning environments. The field setting provides strong sensory inputs that stimulate cognition and memories that will be available for future application. The field environment also stimulates strong affective responses related to motivation, curiosity, a sense of “ownership” of field projects, and inclusion in shared experiences that carry on throughout professional careers. The nature of field work also contains a strong metacognitive component, as students learn to be aware of what and how they

  7. Expertise with artificial nonspeech sounds recruits speech-sensitive cortical regions.

    Science.gov (United States)

    Leech, Robert; Holt, Lori L; Devlin, Joseph T; Dick, Frederic

    2009-04-22

    Regions of the human temporal lobe show greater activation for speech than for other sounds. These differences may reflect intrinsically specialized domain-specific adaptations for processing speech, or they may be driven by the significant expertise we have in listening to the speech signal. To test the expertise hypothesis, we used a video-game-based paradigm that tacitly trained listeners to categorize acoustically complex, artificial nonlinguistic sounds. Before and after training, we used functional MRI to measure how expertise with these sounds modulated temporal lobe activation. Participants' ability to explicitly categorize the nonspeech sounds predicted the change in pretraining to posttraining activation in speech-sensitive regions of the left posterior superior temporal sulcus, suggesting that emergent auditory expertise may help drive this functional regionalization. Thus, seemingly domain-specific patterns of neural activation in higher cortical regions may be driven in part by experience-based restructuring of high-dimensional perceptual space.

  8. Effects of Required Effort, Perceived Expertise, and Sex on Teacher Compliance

    Science.gov (United States)

    Frankel, Edward; Kassinove, Howard

    1974-01-01

    This study examined the effectiveness of a school psychologist's recommendations to teachers about student needs as influenced by variables of the psychologist's sex and expertise and the effort required of the teacher for compliance. (JH)

  9. Business Owner's Expertise, Employee Skills Training And Business Performance: A Small Business Perspective

    National Research Council Canada - National Science Library

    Richard Chinomona

    2013-01-01

      While researches on small businesses have grown substantially, there seem to be a paucity of researches that specifically investigate the effects of small business owner's expertise on employees...

  10. Support to teacher design teams to foster teachers' curriculum design expertise

    NARCIS (Netherlands)

    Huizinga, T.; Nieveen, N.M.; Handelzalts, Adam; Voogt, Joke

    2013-01-01

    Teacher design teams require support to develop good quality curriculum materials. This study focuses on the support teachers receive to develop their curriculum design expertise. Support offered to three teacher design teams, who collaboratively developed curriculum materials, has been investigated

  11. Mimicking Dark Matter

    OpenAIRE

    Bel, Lluís

    2017-01-01

    I show that a very simple model in the context of Newtonian physics promoted to a first approximation of general relativity can mimic Dark matter and explain most of its intriguing properties. Namely: i) Dark matter is a halo associated to ordinary matter; ii) Dark matter does not interact with ordinary matter nor with itself; iii) Its influence grows with the size of the aggregate of ordinary matter that is considered, and iv) Dark matter influences the propagation of light.

  12. Expertise with artificial non-speech sounds recruits speech-sensitive cortical regions

    OpenAIRE

    Leech, Robert; Holt, Lori L.; Devlin, Joseph T.; Dick, Frederic

    2009-01-01

    Regions of the human temporal lobe show greater activation for speech than for other sounds. These differences may reflect intrinsically specialized domain-specific adaptations for processing speech, or they may be driven by the significant expertise we have in listening to the speech signal. To test the expertise hypothesis, we used a video-game-based paradigm that tacitly trained listeners to categorize acoustically complex, artificial non-linguistic sounds. Before and after training, we us...

  13. Living Kidney Donor: Continuity of Care Focused on Professional Expertise, Organisation and Interaction

    DEFF Research Database (Denmark)

    Holch, Kirsten

    concerning living kidney donation at Aarhus University Hospital, Skejby. - to develop a homogeneous, ideal and realistic practice for living kidney donation focused on health-professional expertise, organisation and interaction between professionals and living donor. - To promote inter......  Living Kidney Donor: Continuity of Care Focused on Professional Expertise, Organisation and interaction Aarhus University Hospital, Skejby would like to increase the number of kidneys from living donors for various reasons: - The number of kidneys from deceased persons does not meet the actual...

  14. Diagnostic Palpation in Osteopathic Medicine: A Putative Neurocognitive Model of Expertise

    OpenAIRE

    Esteves, Jorge

    2014-01-01

    This thesis examines the extent to which the development of expertise in diagnostic palpation in osteopathic medicine is associated with changes in cognitive processing. Chapter 2 and Chapter 3 review, respectively, the literature on the role of analytical and non-analytical processing in osteopathic and medical clinical decision making; and the relevant research on the use of vision and haptics and the development of expertise within the context of an osteopathic clinical examination. The...

  15. Play Matters

    DEFF Research Database (Denmark)

    Sicart (Vila), Miguel Angel

    What do we think about when we think about play? A pastime? Games? Childish activities? The opposite of work? Think again: If we are happy and well rested, we may approach even our daily tasks in a playful way, taking the attitude of play without the activity of play. So what, then, is play......, but not necessarily fun. Play can be dangerous, addictive, and destructive. Along the way, Sicart considers playfulness, the capacity to use play outside the context of play; toys, the materialization of play--instruments but also play pals; playgrounds, play spaces that enable all kinds of play; beauty......? In Play Matters, Miguel Sicart argues that to play is to be in the world; playing is a form of understanding what surrounds us and a way of engaging with others. Play goes beyond games; it is a mode of being human. We play games, but we also play with toys, on playgrounds, with technologies and design...

  16. Maxwell Matters

    CERN Document Server

    Eisenberg, Bob

    2016-01-01

    Charges are everywhere because most atoms are charged. Chemical bonds are formed by electrons with their charge. Charges move and interact according to Maxwell's equations in space and in atoms where the equations of electrodynamics are embedded in Schroedinger's equation as the potential. Maxwell's equations are universal, valid inside atoms and between stars from times much shorter than those of atomic motion (0.1 femtoseconds) to years (32 mega-seconds). Maxwell's equations enforce the conservation of current. Analysis shows that the electric field can take on whatever value is needed to ensure conservation of current. The properties of matter rearrange themselves to satisfy Maxwell's equations and conservation of current. Conservation of current is as universal as Maxwell's equations themselves. Yet equations of electrodynamics find little place in the literature of material physics, chemistry, or biochemistry. Kinetic models of chemistry and Markov treatments of atomic motion are ordinary differential eq...

  17. Play Matters

    DEFF Research Database (Denmark)

    Sicart (Vila), Miguel Angel

    What do we think about when we think about play? A pastime? Games? Childish activities? The opposite of work? Think again: If we are happy and well rested, we may approach even our daily tasks in a playful way, taking the attitude of play without the activity of play. So what, then, is play......? In Play Matters, Miguel Sicart argues that to play is to be in the world; playing is a form of understanding what surrounds us and a way of engaging with others. Play goes beyond games; it is a mode of being human. We play games, but we also play with toys, on playgrounds, with technologies and design......, but not necessarily fun. Play can be dangerous, addictive, and destructive. Along the way, Sicart considers playfulness, the capacity to use play outside the context of play; toys, the materialization of play--instruments but also play pals; playgrounds, play spaces that enable all kinds of play; beauty...

  18. Bringing the Field into Focus: User-centered Design of a Patient Expertise Locator.

    Science.gov (United States)

    Civan-Hartzler, Andrea; McDonald, David W; Powell, Chris; Skeels, Meredith M; Mukai, Marlee; Pratt, Wanda

    2010-04-01

    Managing personal aspects of health is challenging for many patients, particularly those facing a serious condition such as cancer. Finding experienced patients, who can share their knowledge from managing a similar health situation, is of tremendous value. Users of health-related social software form a large base of such knowledge, yet these tools often lack features needed to locate peers with expertise. Informed directly by our field work with breast cancer patients, we designed a patient expertise locator for users of online health communities. Using feedback from two focus groups with breast cancer survivors, we took our design through two iterations. Focus groups concluded that expertise locating features proved useful for extending social software. They guided design enhancements by suggesting granular user control through (1) multiple mechanisms to identify expertise, (2) detailed user profiles to select expertise, and (3) varied collaboration levels. Our user-centered approach links field work to design through close collaboration with patients. By illustrating trade-offs made when sharing sensitive health information, our findings inform the incorporation of expertise locating features into social software for patients.

  19. Semantic and Time-Dependent Expertise Profiling Models in Community-Driven Knowledge Curation Platforms

    Directory of Open Access Journals (Sweden)

    Jane Hunter

    2013-10-01

    Full Text Available Online collaboration and web-based knowledge sharing have gained momentum as major components of the Web 2.0 movement. Consequently, knowledge embedded in such platforms is no longer static and continuously evolves through experts’ micro-contributions. Traditional Information Retrieval and Social Network Analysis techniques take a document-centric approach to expertise modeling by creating a macro-perspective of knowledge embedded in large corpus of static documents. However, as knowledge in collaboration platforms changes dynamically, the traditional macro-perspective is insufficient for tracking the evolution of knowledge and expertise. Hence, Expertise Profiling is presented with major challenges in the context of dynamic and evolving knowledge. In our previous study, we proposed a comprehensive, domain-independent model for expertise profiling in the context of evolving knowledge. In this paper, we incorporate Language Modeling into our methodology to enhance the accuracy of resulting profiles. Evaluation results indicate a significant improvement in the accuracy of profiles generated by this approach. In addition, we present our profile visualization tool, Profile Explorer, which serves as a paradigm for exploring and analyzing time-dependent expertise profiles in knowledge-bases where content evolves overtime. Profile Explorer facilitates comparative analysis of evolving expertise, independent of the domain and the methodology used in creating profiles.

  20. Interaction of radiation with matter

    CERN Document Server

    Nikjoo, Hooshang; Emfietzoglou, Dimitris

    2012-01-01

    Written for students approaching the subject for the first time, this text provides a solid grounding in the physics of the interactions of photons and particles with matter, which is the basis of radiological physics and radiation dosimetry. The authors first present the relevant atomic physics and then describe the interactions, emphasizing practical applications in health/medical physics and radiation biology. They cover such important topics as microdosimetry, interaction of photons with matter, electron energy loss, and dielectric response. Each chapter includes exercises and a summary.

  1. "It's Always the Judge's Fault": Attention, Emotion Recognition, and Expertise in Rhythmic Gymnastics Assessment.

    Science.gov (United States)

    van Bokhorst, Lindsey G; Knapová, Lenka; Majoranc, Kim; Szebeni, Zea K; Táborský, Adam; Tomić, Dragana; Cañadas, Elena

    2016-01-01

    In many sports, such as figure skating or gymnastics, the outcome of a performance does not rely exclusively on objective measurements, but on more subjective cues. Judges need high attentional capacities to process visual information and overcome fatigue. Also their emotion recognition abilities might have an effect in detecting errors and making a more accurate assessment. Moreover, the scoring given by judges could be also influenced by their level of expertise. This study aims to assess how rhythmic gymnastics judges' emotion recognition and attentional abilities influence accuracy of performance assessment. Data will be collected from rhythmic gymnastics judges and coaches at different international levels. This study will employ an online questionnaire consisting on an emotion recognition test and attentional test. Participants' task is to watch a set of videotaped rhythmic gymnastics performances and evaluate them on the artistic and execution components of performance. Their scoring will be compared with the official scores given at the competition the video was taken from to measure the accuracy of the participants' evaluations. The proposed research represents an interdisciplinary approach that integrates cognitive and sport psychology within experimental and applied contexts. The current study advances the theoretical understanding of how emotional and attentional aspects affect the evaluation of sport performance. The results will provide valuable evidence on the direction and strength of the relationship between the above-mentioned factors and the accuracy of sport performance evaluation. Importantly, practical implications might be drawn from this study. Intervention programs directed at improving the accuracy of judges could be created based on the understanding of how emotion recognition and attentional abilities are related to the accuracy of performance assessment.

  2. Changing the meaning of peer-to-peer? Exploring online comment spaces as sites of negotiated expertise

    Directory of Open Access Journals (Sweden)

    Marie-Claire Shanahan

    2010-02-01

    Full Text Available This study examines the nature of peer-to-peer interactions in public online comment spaces. From a theoretical perspective of boundary-work and expertise, the comments posted in response to three health sciences news articles from a national newspaper are explored to determine whether both scientific and personal expertise are recognized and taken up in discussion. Posts were analysed for both explicit claims to expertise and implicit claims embedded in discourse. The analysis suggests that while both scientific and personal expertise are proffered by commenters, it is scientific expertise that is privileged. Those expressing scientific expertise receive greater recognition of the value of their posts. Contributors seeking to share personal expertise are found to engage in scientisation to position themselves as worthwhile experts. Findings suggest that despite the possibilities afforded by online comments for a broader vision of what peer-to-peer interaction means, this possibility is not realized.

  3. When Peer Performance Matters: Effects of Expertise and Traits on Children's Self-Evaluations After Social Comparison.

    Science.gov (United States)

    Lapan, Candace; Boseovski, Janet J

    2017-11-01

    The present research examined the influence of peer characteristics on children's reactions to upward social comparisons. In Experiment 1, one hundred twenty-six 5-, 8-, and 10-year-olds were told that they were outperformed by an expert or novice peer. Older children reported higher self-evaluations after comparisons with an expert rather than a novice, whereas 5-year-olds reported high self-evaluations broadly. In Experiment 2, ninety-eight 5- to 6-year-olds and 9- to 10-year-olds were told that the peer possessed a positive or negative trait that was task relevant (i.e., intelligence) or task irrelevant (i.e., athleticism). Older children reported higher self-evaluations after hearing about positive rather than negative traits, irrespective of relevance. Younger children reported high self-evaluations indiscriminately. Results inform the understanding of social comparison development in childhood. © 2017 The Authors. Child Development © 2017 Society for Research in Child Development, Inc.

  4. A Conflict between Experience and Professional Learning: Subject Teachers' Beliefs about Teaching English Language Learners

    Science.gov (United States)

    Gleeson, Margaret; Davison, Chris

    2016-01-01

    Secondary schools in Australia have long benefited from state policies aiming to increase the academic success of English language learners (ELLs). Complementary pre-service and in-service teacher education programmes have been implemented to raise the expertise of subject teachers who teach ELL students. However, subject teachers may not be…

  5. "No level up!": no effects of video game specialization and expertise on cognitive performance.

    Science.gov (United States)

    Gobet, Fernand; Johnston, Stephen J; Ferrufino, Gabriella; Johnston, Matthew; Jones, Michael B; Molyneux, Antonia; Terzis, Argyrios; Weeden, Luke

    2014-01-01

    Previous research into the effects of action video gaming on cognition has suggested that long term exposure to this type of game might lead to an enhancement of cognitive skills that transfer to non-gaming cognitive tasks. However, these results have been controversial. The aim of the current study was to test the presence of positive cognitive transfer from action video games to two cognitive tasks. More specifically, this study investigated the effects that participants' expertise and genre specialization have on cognitive improvements in one task unrelated to video gaming (a flanker task) and one related task (change detection task with both control and genre-specific images). This study was unique in three ways. Firstly, it analyzed a continuum of expertise levels, which has yet to be investigated in research into the cognitive benefits of video gaming. Secondly, it explored genre-specific skill developments on these tasks by comparing Action and Strategy video game players (VGPs). Thirdly, it used a very tight experiment design, including the experimenter being blind to expertise level and genre specialization of the participant. Ninety-two university students aged between 18 and 30 (M = 21.25) were recruited through opportunistic sampling and were grouped by video game specialization and expertise level. While the results of the flanker task were consistent with previous research (i.e., effect of congruence), there was no effect of expertise, and the action gamers failed to outperform the strategy gamers. Additionally, contrary to expectation, there was no interaction between genre specialization and image type in the change detection task, again demonstrating no expertise effect. The lack of effects for game specialization and expertise goes against previous research on the positive effects of action video gaming on other cognitive tasks.

  6. Culture Matters

    Directory of Open Access Journals (Sweden)

    Gillian Warner-Søderholm

    2012-12-01

    Full Text Available Whether managers are concerned with financial issues, marketing, or human resource management (HRM, cultural values and practices do matter. The purpose of this article is to understand Norwegian managers’ cultural values within the cross-cultural landscape of her neighbors in the “Scandinavian cluster.” Clearly, subtle but disturbing differences may surface even when representatives from similar cultures work together. As a follow on from the GLOBE project, data based on the GLOBE instrument were collected on culture and communication values in Norway from 710 Norwegian middle managers for this present study. Although the Scandinavian cultures appear ostensibly similar, the results illustrate that research can reveal subtle but important cultural differences in nations that are similar yet dissimilar. All three Scandinavian societies appear intrinsically egalitarian; they appear to value low Power Distance, directness, and consensus in decision making and to promote Gender Egalitarianism. Nevertheless, there are significant differences in the degrees of commitment to these values by each individual Scandinavian partner. These differences need to be understood and appreciated to avoid misunderstandings.

  7. Soft matter at aqueous interfaces

    CERN Document Server

    Liu, Yi

    2016-01-01

    This book covers the science of interfaces between an aqueous phase and a solid, another liquid or a gaseous phase, starting from the basic physical chemistry all the way to state-of-the-art research developments. Both experimental and theoretical methods are treated thanks to the contributions of a distinguished list of authors who are all active researchers in their respective fields. The properties of these interfaces are crucial for a wide variety of processes, products and biological systems and functions, such as the formulation of personal care and food products, paints and coatings, microfluidic and lab-on-a-chip applications, cell membranes, and lung surfactants. Accordingly, research and expertise on the subject are spread over a broad range of academic disciplines and industrial laboratories. This book brings together knowledge from these different places with the aim of fostering education, collaborations and research progress.

  8. Correlation between white matter damage and gray matter lesions in multiple sclerosis patients.

    Science.gov (United States)

    Han, Xue-Mei; Tian, Hong-Ji; Han, Zheng; Zhang, Ce; Liu, Ying; Gu, Jie-Bing; Bakshi, Rohit; Cao, Xia

    2017-05-01

    We observed the characteristics of white matter fibers and gray matter in multiple sclerosis patients, to identify changes in diffusion tensor imaging fractional anisotropy values following white matter fiber injury. We analyzed the correlation between fractional anisotropy values and changes in whole-brain gray matter volume. The participants included 20 patients with relapsing-remitting multiple sclerosis and 20 healthy volunteers as controls. All subjects underwent head magnetic resonance imaging and diffusion tensor imaging. Our results revealed that fractional anisotropy values decreased and gray matter volumes were reduced in the genu and splenium of corpus callosum, left anterior thalamic radiation, hippocampus, uncinate fasciculus, right corticospinal tract, bilateral cingulate gyri, and inferior longitudinal fasciculus in multiple sclerosis patients. Gray matter volumes were significantly different between the two groups in the right frontal lobe (superior frontal, middle frontal, precentral, and orbital gyri), right parietal lobe (postcentral and inferior parietal gyri), right temporal lobe (caudate nucleus), right occipital lobe (middle occipital gyrus), right insula, right parahippocampal gyrus, and left cingulate gyrus. The voxel sizes of atrophic gray matter positively correlated with fractional anisotropy values in white matter association fibers in the patient group. These findings suggest that white matter fiber bundles are extensively injured in multiple sclerosis patients. The main areas of gray matter atrophy in multiple sclerosis are the frontal lobe, parietal lobe, caudate nucleus, parahippocampal gyrus, and cingulate gyrus. Gray matter atrophy is strongly associated with white matter injury in multiple sclerosis patients, particularly with injury to association fibers.

  9. Developing a biomedical expert finding system using medical subject headings.

    Science.gov (United States)

    Singh, Harpreet; Singh, Reema; Malhotra, Arjun; Kaur, Manjit

    2013-12-01

    Efficient identification of subject experts or expert communities is vital for the growth of any organization. Most of the available expert finding systems are based on self-nomination, which can be biased, and are unable to rank experts. Thus, the objective of this work was to develop a robust and unbiased expert finding system which can quantitatively measure expertise. Medical Subject Headings (MeSH) is a controlled vocabulary developed by the National Library of Medicine (NLM) for indexing research publications, articles and books. Using the MeSH terms associated with peer-reviewed articles published from India and indexed in PubMed, we developed a Web-based program which can be used to identify subject experts and subjects associated with an expert. We have extensively tested our system to identify experts from India in various subjects. The system provides a ranked list of experts where known experts rank at the top of the list. The system is general; since it uses information available with the PubMed, it can be implemented for any country. The expert finding system is able to successfully identify subject experts in India. Our system is unique because it allows the quantification of subject expertise, thus enabling the ranking of experts. Our system is based on peer-reviewed information. Use of MeSH terms as subjects has standardized the subject terminology. The system matches requirements of an ideal expert finding system.

  10. Musical expertise induces audiovisual integration of abstract congruency rules.

    Science.gov (United States)

    Paraskevopoulos, Evangelos; Kuchenbuch, Anja; Herholz, Sibylle C; Pantev, Christo

    2012-12-12

    Perception of everyday life events relies mostly on multisensory integration. Hence, studying the neural correlates of the integration of multiple senses constitutes an important tool in understanding perception within an ecologically valid framework. The present study used magnetoencephalography in human subjects to identify the neural correlates of an audiovisual incongruency response, which is not generated due to incongruency of the unisensory physical characteristics of the stimulation but from the violation of an abstract congruency rule. The chosen rule-"the higher the pitch of the tone, the higher the position of the circle"-was comparable to musical reading. In parallel, plasticity effects due to long-term musical training on this response were investigated by comparing musicians to non-musicians. The applied paradigm was based on an appropriate modification of the multifeatured oddball paradigm incorporating, within one run, deviants based on a multisensory audiovisual incongruent condition and two unisensory mismatch conditions: an auditory and a visual one. Results indicated the presence of an audiovisual incongruency response, generated mainly in frontal regions, an auditory mismatch negativity, and a visual mismatch response. Moreover, results revealed that long-term musical training generates plastic changes in frontal, temporal, and occipital areas that affect this multisensory incongruency response as well as the unisensory auditory and visual mismatch responses.

  11. Upper-limb motion and drop jump: effect of expertise.

    Science.gov (United States)

    Laffaye, G; Bardy, B; Taiar, R

    2006-06-01

    In this study, the role of arm motion in a drop jump was investigated in skilled and unskilled subjects. Nine skilled volleyball players and 8 novice individuals performed a series of jumps from two different heights: 30 cm and 60 cm. Free and restricted arm motion were used to determine the effect of arm motion on the vertical jump. Participants were instructed to land on a force plate and jump as high as possible. The ground reaction force was measured with an AMTI force plate (500 Hz). The kinematics of the jumps was recorded with two digital cameras (50 Hz). The motion of the arms during the jumps was found to increase the jump height by 15% for the volleyball players and 12% for unskilled jumpers. Volleyball players performed better in the 60 cm than in 30 cm drop height (+8.5%). In the volleyball players, the peak vertical ground reaction force during take-off increased by 7%, the peak power increased by 10.6% while the peak impact force decreased by 6.3%. Skilled jumpers were found to have a better use of arm motion than novices in (i) increasing the vertical jump performance, (ii) controlling the balance of the body at take-off (iii) leaving the ground with an optimal body orientation.

  12. Introduction. Cosmology meets condensed matter.

    Science.gov (United States)

    Kibble, T W B; Pickett, G R

    2008-08-28

    At first sight, low-temperature condensed-matter physics and early Universe cosmology seem worlds apart. Yet, in the last few years a remarkable synergy has developed between the two. It has emerged that, in terms of their mathematical description, there are surprisingly close parallels between them. This interplay has been the subject of a very successful European Science Foundation (ESF) programme entitled COSLAB ('Cosmology in the Laboratory') that ran from 2001 to 2006, itself built on an earlier ESF network called TOPDEF ('Topological Defects: Non-equilibrium Field Theory in Particle Physics, Condensed Matter and Cosmology'). The articles presented in this issue of Philosophical Transactions A are based on talks given at the Royal Society Discussion Meeting 'Cosmology meets condensed matter', held on 28 and 29 January 2008. Many of the speakers had participated earlier in the COSLAB programme, but the strength of the field is illustrated by the presence also of quite a few new participants.

  13. Delusions of expertise: the high standard of proof needed to demonstrate skills at horserace handicapping.

    Science.gov (United States)

    Browne, Matthew; Rockloff, Matthew J; Blaszcynski, Alex; Allcock, Clive; Windross, Allen

    2015-03-01

    Gamblers who participate in skill-oriented games (such as poker and sports-betting) are motivated to win over the long-term, and some monitor their betting outcomes to evaluate their performance and proficiency. In this study of Australian off-track horserace betting, we investigated which levels of sustained returns would be required to establish evidence of skill/expertise. We modelled a random strategy to simulate 'naïve' play, in which equal bets were placed on randomly selected horses using a representative sample of 211 weekend races. Results from a Monte Carlo simulation yielded a distribution of return-on-investments for varying number of bets (N), showing surprising volatility, even after a large number of repeated bets. After adjusting for the house advantage, a gambler would have to place over 10,000 bets in individual races with net returns exceeding 9 % to be reasonably considered an expert punter (α = .05). Moreover, a record of fewer bets would require even greater returns for demonstrating expertise. As such, validated expertise is likely to be rare among race bettors. We argue that the counter-intuitively high threshold for demonstrating expertise by tracking historical performance is likely to exacerbate known cognitive biases in self-evaluation of expertise.

  14. Driven by Expertise and Insulation? The Autonomy of European Regulatory Agencies

    Directory of Open Access Journals (Sweden)

    Christoph Ossege

    2015-03-01

    Full Text Available Expertise and autonomy are cornerstones to the effective operation and legitimacy of European Regulatory Agencies (ERAs. Yet, we know little about ERAs’ actual autonomy, nor about factors shaping it. This article studies ERAs’ actual autonomy from public and private actors, emphasising two crucial explanatory factors: expertise and rulemaking competences. The lack of insights on expertise is particularly striking, as expertise—the “raison d’être” and main resource of expert bodies—provides ERAs with a potentially powerful means to increase autonomy. Relying on a rational institutionalist framework within which ERAs enjoy substantive discretion to pursue their goals, the study empirically compares three powerful ERAs—the European Medicines Agency, the European Chemicals Agency, and the European Food Safety Authority. Based on the analysis of 39 semi-structured expert interviews, findings show that expertise is a crucial explanation for ERAs’ substantive autonomy from the Commission. Towards research intensive private stakeholders, the role of expertise becomes less pronounced. Instead, ERAs are more successful in protecting their autonomy by engaging in the risk-averse interpretation of the regulatory framework and by adapting rules over time to adapt their needs: they engage in “procedural insulation”. Political salience provides a scope condition for ERAs to use expert knowledge and rulemaking competences more strategically—potentially undermining scientific quality.

  15. An adaptive toolbox approach to the route to expertise in sport.

    Science.gov (United States)

    de Oliveira, Rita F; Lobinger, Babett H; Raab, Markus

    2014-01-01

    Expertise is characterized by fast decision-making which is highly adaptive to new situations. Here we propose that athletes use a toolbox of heuristics which they develop on their route to expertise. The development of heuristics occurs within the context of the athletes' natural abilities, past experiences, developed skills, and situational context, but does not pertain to any of these factors separately. This is a novel approach because it integrates separate factors into a comprehensive heuristic description. The novelty of this approach lies within the integration of separate factors determining expertise into a comprehensive heuristic description. It is our contention that talent identification methods and talent development models should therefore be geared toward the assessment and development of specific heuristics. Specifically, in addition to identifying and developing separate natural abilities and skills as per usual, heuristics should be identified and developed. The application of heuristics to talent and expertise models can bring the field one step away from dichotomized models of nature and nurture toward a comprehensive approach to the route to expertise.

  16. An adaptive toolbox approach to the route to expertise in sport

    Directory of Open Access Journals (Sweden)

    Rita F De Oliveira

    2014-07-01

    Full Text Available Expertise is characterized by fast decision-making which is highly adaptive to new situations. Here we propose that athletes use a toolbox of heuristics which they develop on their route to expertise. The development of heuristics occurs within the context of the athletes’ natural abilities, past experiences, developed skills, and situational context, but does not pertain to any of these factors separately. This is a novel approach because it integrates separate factors into a comprehensive heuristic description. The novelty of this approach lies within the integration of separate factors determining expertise into a comprehensive heuristic description. It is our contention that talent identification methods and talent development models should therefore be geared towards the assessment and development of specific heuristics. Specifically, in addition to identifying and developing separate natural abilities and skills as per usual, heuristics should be identified and developed. The application of heuristics to talent and expertise models can bring the field one step away from dichotomized models of nature and nurture towards a comprehensive approach to the route to expertise.

  17. BOOK REVIEW: The Expertise and Deployment of Science Teachers at Key Stage 4

    Science.gov (United States)

    Dobson, Ken

    2000-03-01

    experienced head of department (biologist) considered himself to be: ... probably a better physics teacher than most physicists for many GCSE candidates. I know their difficulties from personal experience. Another biologist: We operate a detailed scheme of work and have subject advisers within the Faculty to help those less confident in particular disciplines. Most enjoy the variety. In contrast: A chemist: I have no expertise in physics or biology and no training to teach these disciplines at any level. ... I consider [my teaching programme] to be a terrible waste of the school's resources and my expertise. An environmental scientist: I feel that [the pupils] have a raw deal from my lack of physics expertise. However, a common feeling is that there is a good case for teaching science so that pupils benefit from cross-disciplinary links, but that there is a tension between this and what teachers feel professionally confident about being able to do. The authors conclude that: ` ... the shift towards teaching of the sciences by non-specialists has gone too far to be halted.' They discuss what this implies in practice. A major recommendation is that ` ... the recruitment and motivation of young science teachers would be promoted ... by a greater emphasis on their disciplinary specialisms.' The final message is that the kids can tell: `Biology with you is OK. Chemistry is fun. But you like physics don't you?' (my emphasis)

  18. Sirius Matters

    CERN Document Server

    Brosch, Noah

    2008-01-01

    Since very early times Sirius was a point of attraction in the night sky. It served to synchronize calendars in antiquity and was the subject of many myths and legends, including some modern ones. It was perceived as a red star for more than 400 years, but such reports were relegated to the Mediterranean region. Astronomically, Sirius is a very bright star. This, and its present close distance to us, argues in favor of it being the target of detailed studies of stellar structure and evolution. Its binary nature, with a companion that is one of the more massive white dwarfs, is an additional reason for such studies. This book collects the published information on Sirius in an attempt to derive a coherent picture of how this system came to look as it does.

  19. Industry Matters

    DEFF Research Database (Denmark)

    Tran, Angie Ngoc; Jeppesen, Søren

    2018-01-01

    regulation and greater industry pressure with regard to quality and safety of products than to labour standards in both sectors. Most factories in the TGF sector assembled products for global supply chains and were under pressure by industry norms, while most companies in the FBP sector produced......This chapter draws on a study investigating what corporate social responsibility (CSR) means to Vietnam’s small- and medium-size enterprise (SME) owner/managers and workers, using Scott’s three-pillar (norms, regulation, cognition) institutional framework. The findings are based on factory visits...... for the domestic market and were subjected to greater state regulation. Moreover, contributing critical perspectives to Scott’s framework, we found an overlap between the normative and the regulatory, and between the cognitive and the industry norms, which reveals how institutional and cultural pressures...

  20. Influences of APOE ε4 and Expertise on Performance of Older Pilots

    Science.gov (United States)

    Taylor, Joy L.; Kennedy, Quinn; Adamson, Maheen M.; Lazzeroni, Laura C.; Noda, Art; Murphy, Greer M.; Yesavage, Jerome A.

    2010-01-01

    Little is known about how APOE ε4-related differences in cognitive performance translate to real-life performance, where training and experience may help to sustain performance. We investigated the influences of APOE ε4 status, expertise (FAA pilot proficiency ratings), and their interaction on longitudinal flight simulator performance. Over a 2-year period, 139 pilots aged 42–69 years were tested annually. APOE ε4 carriers had lower memory performance than noncarriers (p = .019). APOE interacted with Expertise (p = .036), such that the beneficial influence of expertise (p = .013) on longitudinal flight simulator performance was more pronounced for ε4 carriers. Results suggest that relevant training and activity may help sustain middle-aged and older adults’ real-world performance, especially among APOE ε4 carriers. PMID:21668123

  1. Cognitive and methodological considerations on the effects of musical expertise on speech segmentation.

    Science.gov (United States)

    François, Clément; Tillmann, Barbara; Schön, Daniele

    2012-04-01

    Both speech and music are constituted by sequences of sound elements that unfold in time and require listeners to engage cognitive functions such as sequencing, attention, and memory. We recently ran a set of experiments with the aim of testing the effect of musical expertise on a rather high cognitive function: speech segmentation. Here, we will present the main concepts underlying the investigation of speech segmentation as well as its link to music and musical expertise. Interestingly, our results seem to show that musical training and expertise have effects on brain plasticity that may go beyond primary regions. Moreover, to facilitate and improve future research in this domain, we will here describe several delicate methodological precautions that need to be taken into account (e.g., the choice of stimuli, participants, data analyses). Finally, we will give some possible future directions to better understand the impact that music may have on speech processing. © 2012 New York Academy of Sciences.

  2. Technological agency in the co-constitution of legal expertise and the US drone program

    DEFF Research Database (Denmark)

    Leander, Anna

    2013-01-01

    disagreement over the legal status of the US drone program. Target killing suggests that the drone program may be legally regulated. Extrajudicial execution suggests that it falls outside the realm of legality. This article does not seek to settle which terminology is the most appropriate. Instead it analyses...... the legal expertise struggling to do so and its implications. More specifically, it focuses on the processes through which drones constitute the legal expertise that constitutes the drone program as one of targeted killings and of extrajudicial executions; that is, on a process of co-constitution. Drawing...... theoretical inspiration from and combining new materialist approaches (especially as articulated by Bruno Latour) with the sociological approach of Pierre Bourdieu, the article shows that drones have 'agency' in the 'field' of legal expertise pertaining to the drone program. Drones are redrawing...

  3. Influences of APOE ε4 and expertise on performance of older pilots.

    Science.gov (United States)

    Taylor, Joy L; Kennedy, Quinn; Adamson, Maheen M; Lazzeroni, Laura C; Noda, Art; Murphy, Greer M; Yesavage, Jerome A

    2011-06-01

    Little is known about how APOE ε4-related differences in cognitive performance translate to real-life performance, where training and experience may help to sustain performance. We investigated the influences of APOE ε4 status, expertise (FAA pilot proficiency ratings), and their interaction on longitudinal flight simulator performance. Over a 2-year period, 139 pilots aged 42-69 years were tested annually. APOE ε4 carriers had lower memory performance than noncarriers (p = .019). APOE interacted with Expertise (p = .036), such that the beneficial influence of expertise (p = .013) on longitudinal flight simulator performance was more pronounced for ε4 carriers. Results suggest that relevant training and activity may help sustain middle-aged and older adults' real-world performance, especially among APOE ε4 carriers. (c) 2011 APA, all rights reserved.

  4. The style of a stranger: Identification expertise generalizes to coarser level categories.

    Science.gov (United States)

    Searston, Rachel A; Tangen, Jason M

    2017-08-01

    Experience identifying visual objects and categories improves generalization within the same class (e.g., discriminating bird species improves transfer to new bird species), but does such perceptual expertise transfer to coarser category judgments? We tested whether fingerprint experts, who spend their days comparing pairs of prints and judging whether they were left by the same finger or two different fingers, can generalize their finger discrimination expertise to people more broadly. That is, can these experts identify prints from Jones's right thumb and prints from Jones's right index finger as instances of the same "Jones" category? Novices and experts were both sensitive to the style of a stranger's prints; despite lower levels of confidence, experts were significantly more sensitive to this style than novices. This expert advantage persisted even when we reduced the number of exemplars provided. Our results demonstrate that perceptual expertise can be flexible to upwards shifts in the level of specificity, suggesting a dynamic memory retrieval process.

  5. Using professional expertise in partnership with families: A new model of capacity building.

    Science.gov (United States)

    Clerke, Teena; Hopwood, Nick; Chavasse, Fran; Fowler, Cathrine; Lee, Sally; Rogers, Julie

    2017-03-01

    The first five years of parenting are critical to children's development. Parents are known to respond best to interventions with a partnership-based approach, yet child and family health nurses (CFHNs) report some tension between employing their expertise and maintaining a partnership relationship. This article identifies ways in which CFHNs skilfully use their professional expertise, underpinned by helping qualities and interpersonal skills, to assist families build confidence and capacity, and thus buffer against threats to parent and child well-being. It reports on an Australian ethnographic study of services for families with young children. Fifty-two interactions were observed between CFHNs and families in day-stay and home visiting services in Sydney. A new model is presented, based on four partnership activities and the fluid movement between them, to show how CFHNs use their expertise to identify strengths and foster resilience in families in the longer term, without undermining the principles of partnership.

  6. Language matters: an introduction.

    Science.gov (United States)

    Leap, William L; Provencher, Denis M

    2011-01-01

    That language and sexuality are closely connected is one of the enduring themes in human sexuality research. The articles in this special issue of the Journal of Homosexuality explore some of these language-centered insights as they apply to same-sex related desires, identities, and practices and to other dimensions of non-normative sexual experiences. The articles address language use over a range of geographic and social locations. The linguistic practices discussed are diverse, including the language associated with Santería, comments viewers make about gay pornography, homophobic discourse, coming out stories, stories where declarations of sexual identity are tacitly withheld, sexual messages in Black hip hop culture, assessments of urban AIDS ministries, and policies that limit transgender subjects' access to urban space. Taken together, these articles demonstrate that language matters in the everyday experience of sexual sameness and they model some of the approaches that are now being explored in language and sexuality studies.

  7. Effects of Evaluator's Fatigue and Level of Expertise on the Global and Analytical Evaluation of Preclinical Tooth Preparation.

    Science.gov (United States)

    Al Amri, Mohammad D; Sherfudhin, Haneef R; Habib, Syed R

    2016-11-03

    To investigate the effects of evaluator fatigue and level of expertise on the grading of preclinical tooth crown preparations, by global and analytical methods of evaluation. The study had a double-blind design. Two faculty members, each with more than 10 years of clinical and teaching experience, and two demonstrators with no teaching experience evaluated tooth preparations on maxillary central incisors and mandibular first molars. As a test of the effect of fatigue, preparations were globally (subjective grading) and analytically (criteria-based grading) graded on day 1 (after evaluators had been on duty continuously for 8 hours) and day 2 (in the morning after evaluators had sufficient sleep). Evaluators worked under the same circumstances and did not communicate with each other. The assigned textbooks were used to develop the criteria for grading (rubric) and the predefined exclusion criteria. Grades were recorded and statistically analyzed using statistical software. The paired-sample t-test and Mann-Whitney U test were used for multiple comparisons. Level of significance was set at p ˂ 0.05. An inconsistency in preclinical tooth preparation evaluation was found to exist by both global and analytical methods. Junior faculty tended to award higher grades than senior faculty did. Furthermore, higher grades were scored by the analytical method. More clinical and academic experience did not guarantee intra- and interexaminer reliability. Younger faculty appeared to tolerate fatigue better than older faculty. Likewise, global evaluation appeared to be more influenced by fatigue than was the analytical method. There were variations in grading, with no consistently preferred grading method. Evaluator performance after continuous 8-hour duty had no significant effect on preclinical tooth preparation evaluation. Level of expertise did not affect preclinical evaluation regardless of the grading method used. © 2016 by the American College of Prosthodontists.

  8. The Politics of Neutrality and the Changing Role of Expertise in Public Administration

    DEFF Research Database (Denmark)

    Triantafillou, Peter

    2015-01-01

    This article explores and discusses the ongoing attempt to reinstate an ethos of neutrality in public administration. It focuses on the political benefits and costs of contemporary strategies in public administration for using expertise based on an ethos of neutrality. On the one hand, expertise...... may serve to allow a particular form of value neutrality that curbs abuse of political office, questions received wisdom on the efficacy of policy interventions, and thereby holds the potential to minimize the waste of public resources employed to meet political goals. On the other hand, the use...

  9. The role of biomedical knowledge in echocardiographic interpretation expertise development: a correlation study

    DEFF Research Database (Denmark)

    Nielsen, Dorte Guldbrand; Gøtzsche, Ole; Eika, Berit

    2010-01-01

    Purpose: Little is known about factors of relevance for achieving knowledge of echocardiography (TTE); one of the essential skills defined by the European Society of Cardiology Core Curriculum. Recent research in other fields suggests that biomedical knowledge plays a more prominent role...... in professional practice than previously assumed. This study investigates the role of biomedical knowledge represented by physiology knowledge in the development of echocardiographic expertise. Methods: Forty-five physicians (15 novices, 15 intermediates and 15 experts) were evaluated on echocardiography...... of echocardiography relevant physiology knowledge. Results: A strong and significant correlation between expertise level and scores on the TTE interpretation checklist was found (r = 0.70, p

  10. Varieties of teacher expertise in teaching Danish language and literature in lower secondary schools

    DEFF Research Database (Denmark)

    Dorf, Hans; Kelly, Peter; Pratt, Nick

    2012-01-01

    In this study we seek to explore how expert teachers mediate the many influences on their practice. The research we report here is set in the context of lower secondary school teaching of Danish language and literature. Our findings suggest that teacher expertise can be conceptualized by a set...... of ‘role types’ based on the dimensions of goals, norms, discourses and practices. Teachers seem to move between different types of teacher expertise according to the perceived demands of the situation, mediating policy requirements, practicing interpretations of educational goals, and administering...

  11. Reorganization and plastic changes of the human brain associated with skill learning and expertise

    Directory of Open Access Journals (Sweden)

    Yongmin eChang

    2014-02-01

    Full Text Available Novel experience and learning new skills are known as modulators of brain function. Advances in non-invasive brain imaging have provided new insight into structural and functional reorganization associated with skill learning and expertise. Especially, significant imaging evidences come from the domains of sports and music. Data from in vivo imaging studies in sports and music have provided vital information on plausible neural substrates contributing to brain reorganization underlying skill acquisition in humans. This mini review will attempt to take a narrow snapshot of imaging findings demonstrating functional and structural plasticity that mediate skill learning and expertise while identifying converging areas of interest and possible avenues for future research.

  12. Media matters.

    Science.gov (United States)

    Martinez, L M

    1995-01-01

    The impact of the mass media on woman's status was addressed at two 1995 conferences: the Fourth World Conference on Women, held in Beijing, China, and the Congress of the World Association for Christian Communication, held in Puebla, Mexico. The globalization process facilitated by the mass media has served to increase the power of patriarchy, with no advantages to the cause of women's rights. Coverage of popular movements has been suppressed out of deference to male-controlled governments. Coverage of the Beijing Conference highlighted celebrities and personal stories, to the exclusion of the economic and political issues under debate. Television has commodified women, reinforcing their oppression. On the other hand, the alternative media, which tend to be decentralized, democratic, low-cost, and low in technology, are presenting women as subjects rather than objects and deconstructing gender stereotypes. Of concern, however, is the tendency of computer technology to widen the gap between social classes and developed and developing countries. Women must use information networks to disseminate information on women's rights and strengthen the links between women throughout the world.

  13. Perícia Contábil: análise bibliométrica e sociométrica em periódicos e congressos nacionais no período de 2007 a 2011 = Accounting expertise: bibliometric and sociometric analysis in journals and national congresses in the period from 2007 to 2011

    Directory of Open Access Journals (Sweden)

    Tatiane Schmitz

    2013-12-01

    expertise in accounting from 2007 to 2011. The results showed that the publications were more intense in 2007 and 2008. The theme is widespread in only nine journals and there is virtually no publication on those considered of a high impact level. There was the participation of 51 authors and 22 institutions in the study. The universities with the highest number of articles were not those that had the greatest bond of cooperation. The main topics covered were structure and quality of the expert report and the conditions of teaching expertise in graduation courses, restricting themselves to certain regions. With regard to the references, the greater part of domestic books and the most cited authors were those who have textbooks published in respect of the subject matter and that are constantly used in graduation courses. Considering that only 25 articles were published during the period of the analysis, it was concluded that the theme is little explored, both in academic and professional areas, suggesting that future research should be undertaken on the theme "expertise accounting". Moreover, the poor relations of collaboration between researchers and institutions, eventually characterize little cohesive and poorly integrated network.

  14. ADAPTIVE OUTPUT CONTROL: SUBJECT MATTER, APPLICATION TASKS AND SOLUTIONS

    Directory of Open Access Journals (Sweden)

    Alexey A. Bobtsov

    2013-01-01

    Full Text Available The problem of adaptive output control for parametric and functionally uncertain plants is considered. Application examples illustrating the practical use of the discussed theory are given along with the mathematical formulation of the problem. A brief review of adaptive output control methods, by both linear and non-linear systems, is presented and an extensive bibliography, in which the reader will find a detailed description of the specific algorithms and their properties, is represented. A new approach to the output control problem - a method of consecutive compensator - is considered in detail.

  15. K-Means Subject Matter Expert Refined Topic Model Methodology

    Science.gov (United States)

    2017-01-01

    implementations for Case 4 only. The accuracy results for all of the SMERT/KSMERT implantations are similar due to the user employing domain knowledge to...truck. 5 The supplier welded and misdimensioned the titanium offsite. 6 The inspector drilled plastic and overheated it at station2. 7 It was...drilled and overheated. 8 It was drilled and overheated. 9 The engineer and the manager at station3 and on the truck. 10 The welded titanium was

  16. Writing for professional publication. Part 2: Subject matter.

    Science.gov (United States)

    Fowler, John

    Motivation is the first step in writing for professional publication: the next question is, what should you write about? Whatever your area of practice or level of experience, your writing will be suitable for one of the wealth of journals covering all aspects of healthcare and nursing. In this second part of a series of articles, John Fowler, an experienced nursing lecturer and author, presents some tips and suggestions to inspire you as you take your first steps on the road to writing for professional publication.

  17. Classification of educational subject matter: the case of Home ...

    African Journals Online (AJOL)

    Although it represents an individual view, this article was submitted to the Department of Education by the Cape Higher Education Consortium (CHEC) as an outcome of the review of the field of Home Economics in the Western Cape region. By presenting some history, it argues that the category of Home Economics is no ...

  18. RAn Enlarged Conception of the Subject Matter of Logic

    Directory of Open Access Journals (Sweden)

    John T. Kearns

    2004-01-01

    Full Text Available Una concepción ampliada del objeto de estudio de la lógica: El ensayo es una introducción a la lógica ilocucionaria, es decir a la lógica de los actos de habla. El autor propone una aproximación distinta a este campo de investigación con respecto al que han propuesto John Searle y Daniel Vanderveken. Ellos conciben la lógica ilocucionaria como un suplemento o un apéndice a la lógica estándar, la lógica de los enunciados, y se concentran en el estudio de leyes y principios muy generales que caracterizan todo tipo de actos ilocucionarios. Kearns, en cambio, concibe la lógica ilocucionaria como una disciplina muy comprensiva, con muchos subsistemas, que cobija a la lógica estándar como parte suya. El escrito describe brevemente el uso de los operadores ilocucionarios (de aseveración, de negación, de suposición de verdad o falsedad, explica la manera como se expande la concepción semántica en términos de condiciones de verdad para incluir los compromisos racionales del hablante y presenta un sistema de deducción para esta lógica. Como un ejemplo de lo que esta lógica puede hacer se ofrece una solución a la paradoja de Moore contenida en la aseveración “Está lloviendo, pero no lo creo”

  19. Occupational Listings Arranged by Cluster and Subject Matter Areas.

    Science.gov (United States)

    Schwarz, Otto

    Approximately 850 occupations are listed under 27 occupational clusters. The Dictionary of Occupational Title (DOT) number is specified for occupations in the clusters of business training and distributive education, chemistry, general shop and industrial arts, home economics, foreign language, music, social studies, art, agriculture, physics, and…

  20. Instructional Design: Impact of Subject Matter and Cognitive Styles.

    Science.gov (United States)

    1987-02-01

    processing, and the integration/synthesis of component parts. The haptic individual uses " bodily " perceptions, and is kinesthetically oriented. An...microcomputers, and the introduction of artificial intelligence techniques into training has permitted more effective use of computer-based instruction...instruction, the advent of more powerful and inexpensive microcomputers, and the introduction of artificial intelligence techniques into training, has permitted

  1. Subjective matters: from image quality to image psychology

    Science.gov (United States)

    Fedorovskaya, Elena A.; De Ridder, Huib

    2013-03-01

    From the advent of digital imaging through several decades of studies, the human vision research community systematically focused on perceived image quality and digital artifacts due to resolution, compression, gamma, dynamic range, capture and reproduction noise, blur, etc., to help overcome existing technological challenges and shortcomings. Technological advances made digital images and digital multimedia nearly flawless in quality, and ubiquitous and pervasive in usage, provide us with the exciting but at the same time demanding possibility to turn to the domain of human experience including higher psychological functions, such as cognition, emotion, awareness, social interaction, consciousness and Self. In this paper we will outline the evolution of human centered multidisciplinary studies related to imaging and propose steps and potential foci of future research.

  2. The role of subject-matter analysis in science didactics

    DEFF Research Database (Denmark)

    Chaiklin, Seth

    to problems within science education. STEM education research can be reduced (roughly) to four major problem areas: curriculum, empirical evaluation of existing practices and conditions, didactics, and professional development, where each of these categories can be concretised further according to grade...... paper is primarily on the didactics category, and slightly on the professional development category. The purpose of this paper is to outline three significant points that have been developed within the cultural-historical tradition that have consequences for these two categories: (a) the relation...

  3. Blending critical thinking skills with the teaching of subject matter ...

    African Journals Online (AJOL)

    The study draws on Piaget and Vygotsky's theory of (social) constructivism to advance approaches and practices that teachers can employ to promote critical thinking in learners. We develop a lesson plan that incorporates critical thinking skills and show how teachers can correct egocentric and sociocentric tendencies that ...

  4. The white matter query language: a novel approach for describing human white matter anatomy.

    Science.gov (United States)

    Wassermann, Demian; Makris, Nikos; Rathi, Yogesh; Shenton, Martha; Kikinis, Ron; Kubicki, Marek; Westin, Carl-Fredrik

    2016-12-01

    We have developed a novel method to describe human white matter anatomy using an approach that is both intuitive and simple to use, and which automatically extracts white matter tracts from diffusion MRI volumes. Further, our method simplifies the quantification and statistical analysis of white matter tracts on large diffusion MRI databases. This work reflects the careful syntactical definition of major white matter fiber tracts in the human brain based on a neuroanatomist's expert knowledge. The framework is based on a novel query language with a near-to-English textual syntax. This query language makes it possible to construct a dictionary of anatomical definitions that describe white matter tracts. The definitions include adjacent gray and white matter regions, and rules for spatial relations. This novel method makes it possible to automatically label white matter anatomy across subjects. After describing this method, we provide an example of its implementation where we encode anatomical knowledge in human white matter for ten association and 15 projection tracts per hemisphere, along with seven commissural tracts. Importantly, this novel method is comparable in accuracy to manual labeling. Finally, we present results applying this method to create a white matter atlas from 77 healthy subjects, and we use this atlas in a small proof-of-concept study to detect changes in association tracts that characterize schizophrenia.

  5. 42 CFR 1008.15 - Facts subject to advisory opinions.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 5 2010-10-01 2010-10-01 false Facts subject to advisory opinions. 1008.15 Section... Requesting Party § 1008.15 Facts subject to advisory opinions. (a) The OIG will consider requests from a requesting party for advisory opinions regarding the application of specific facts to the subject matters set...

  6. Processing demands upon cognitive, linguistic, and articulatory functions promote grey matter plasticity in the adult multilingual brain: Insights from simultaneous interpreters.

    Science.gov (United States)

    Elmer, Stefan; Hänggi, Jürgen; Jäncke, Lutz

    2014-05-01

    Until now, considerable effort has been made to determine structural brain characteristics related to exceptional multilingual skills. However, at least one important question has not yet been satisfactorily addressed in the previous literature, namely whether and to which extent the processing demands upon cognitive, linguistic, and articulatory functions may promote grey matter plasticity in the adult multilingual brain. Based on the premise that simultaneous interpretation is a highly demanding linguistic task that places strong demands on executive and articulatory functions, here we compared grey matter volumes between professional simultaneous interpreters (SI) and multilingual control subjects. Thereby, we focused on a specific set of a-priori defined bilateral brain regions that have previously been shown to support neurocognitional aspects of language control and linguistic functions in the multilingual brain. These regions are the cingulate gyrus, caudate nucleus, frontal operculum (pars triangularis and opercularis), inferior parietal lobe (IPL) (supramarginal and angular gyrus), and the insula. As a main result, we found reduced grey matter volumes in professional SI, compared to multilingual controls, in the left middle-anterior cingulate gyrus, bilateral pars triangularis, left pars opercularis, bilateral middle part of the insula, and in the left supramarginal gyrus (SMG). Interestingly, grey matter volume in left pars triangularis, right pars opercularis, middle-anterior cingulate gyrus, and in the bilateral caudate nucleus was negatively correlated with the cumulative number of interpreting hours. Hence, we provide first evidence for an expertise-related grey matter architecture that may reflect a composite of brain characteristics that were still present before interpreting training and training-related changes. Copyright © 2014 Elsevier Ltd. All rights reserved.

  7. What does physicians' clinical expertise contribute to oncologic decision-making? A qualitative interview study.

    Science.gov (United States)

    Salloch, Sabine; Otte, Ina; Reinacher-Schick, Anke; Vollmann, Jochen

    2017-10-27

    Physicians' clinical expertise forms an exclusive body of competences, which helps them to find the appropriate diagnostics and treatment for each individual patient. Empirical evidence, however, suggests that there is an inverse relationship between the number of years in practice and the quality of care provided by a physician. Knowledge and adherence to professional standards (such as clinical guidelines) are often used as indicators in previous research. Semistructured interviews and the Q method were used for an explorative study on oncologists' views on the interplay between their own clinical expertise, intuition, and the external evidence incorporated in clinical guidelines. The interviews were audio recorded, transcribed ad verbatim, and analysed using qualitative content analysis. Data analysis shows the complex character of clinical expertise with respect to experience, professional development, and intuition. An irreplaceable role is attributed to personal and bodily experience during the providing of care for a patient. Professional experience becomes important, particularly in those situations that lie out of the focus of "guideline medicine." Intuition is regarded as having a strong emotional component and helps for deciding which therapeutic option the patient can deal with. Using measurable knowledge and adherence to standards as indicators does not account for the complexity of clinical expertise. Other factors, such as the importance of bodily experience and physicians' intuitive knowledge, must be considered, also with respect to the occurrence of treatment biases. © 2017 John Wiley & Sons, Ltd.

  8. What makes a good musical improviser? An expert view on improvisational expertise

    NARCIS (Netherlands)

    Wopereis, Iwan; Kirschner, Paul A.; Van Merriënboer, Jeroen

    2012-01-01

    Wopereis, I. G. J. H., Kirschner, P. A., & Van Merriënboer, J. J. G. (2012). What makes a good musical improviser? An expert view on improvisational expertise. In E. King & E. Himonides (Eds.), Abstracts: SEMPRE 40th anniversary conference (p. 166). London, UK: International Music Education Research

  9. Using Cognitive Load Theory to Tailor Instruction to Levels of Accounting Students' Expertise

    Science.gov (United States)

    Blayney, Paul; Kalyuga, Slava; Sweller, John

    2015-01-01

    Tailoring of instructional methods to learner levels of expertise may reduce extraneous cognitive load and improve learning. Contemporary technology-based learning environments have the potential to substantially enable learner-adapted instruction. This paper investigates the effects of adaptive instruction based on using the isolated-interactive…

  10. Brain correlates of aesthetic expertise: A parametric fMRI study

    DEFF Research Database (Denmark)

    Kirk, Ulrich; Skov, Martin; Christensen, Mark Schram

    2009-01-01

    Several studies have demonstrated that acquired expertise influences aesthetic judgments. In this paradigm we used functional magnetic resonance imaging (fMRI) to study aesthetic judgments of visually presented architectural stimuli and control-stimuli (faces) for a group of architects and a grou...

  11. Eye-Tracking in the Study of Visual Expertise: Methodology and Approaches in Medicine

    Science.gov (United States)

    Fox, Sharon E.; Faulkner-Jones, Beverly E.

    2017-01-01

    Eye-tracking is the measurement of eye motions and point of gaze of a viewer. Advances in this technology have been essential to our understanding of many forms of visual learning, including the development of visual expertise. In recent years, these studies have been extended to the medical professions, where eye-tracking technology has helped us…

  12. Metacognition and action: a new pathway to understanding social and cognitive aspects of expertise in sport.

    Science.gov (United States)

    MacIntyre, Tadhg E; Igou, Eric R; Campbell, Mark J; Moran, Aidan P; Matthews, James

    2014-01-01

    For over a century, psychologists have investigated the mental processes of expert performers - people who display exceptional knowledge and/or skills in specific fields of human achievement. Since the 1960s, expertise researchers have made considerable progress in understanding the cognitive and neural mechanisms that underlie such exceptional performance. Whereas the first modern studies of expertise were conducted in relatively formal knowledge domains such as chess, more recent investigations have explored elite performance in dynamic perceptual-motor activities such as sport. Unfortunately, although these studies have led to the identification of certain domain-free generalizations about expert-novice differences, they shed little light on an important issue: namely, experts' metacognitive activities or their insights into, and regulation of, their own mental processes. In an effort to rectify this oversight, the present paper argues that metacognitive processes and inferences play an important if neglected role in expertise. In particular, we suggest that metacognition (including such processes as "meta-attention," "meta-imagery" and "meta-memory," as well as social aspects of this construct) provides a window on the genesis of expert performance. Following a critique of the standard empirical approach to expertise, we explore some research on "metacognition" and "metacognitive inference" among experts in sport. After that, we provide a brief evaluation of the relationship between psychological skills training and metacognition and comment on the measurement of metacognitive processes. Finally, we summarize our conclusions and outline some potentially new directions for research on metacognition in action.

  13. Nurture Hidden Talents: Transform School Culture into One That Values Teacher Expertise

    Science.gov (United States)

    Zimmerman, Diane P.

    2014-01-01

    This article looks into the school culture where teacher expertise is often hidden and underused. While the media-rich culture places a high value on talent, the irony is that talent is underrated in most schools, and educators often remain silent about their hidden talents. Many school cultures are not conducive to dialogue that supports displays…

  14. TheME: an environment for building formal KADS II models of expertise

    NARCIS (Netherlands)

    Balder, John; Akkermans, J.M.; Akkermans, Hans

    1992-01-01

    COMMONKADS is a well-known methodology for the development of knowledge-based systems. In this methodology one constructs so-called models of expertise as a basis for the development. A new feature with respect to older versions of the KADS methodology is a formal version of these models, whereby

  15. When Should I Trust My Gut? Linking Domain Expertise to Intuitive Decision-Making Effectiveness

    Science.gov (United States)

    Dane, Erik; Rockmann, Kevin W.; Pratt, Michael G.

    2012-01-01

    Despite a growing body of scholarship on the concept of intuition, there is a scarcity of empirical research spotlighting the circumstances in which intuitive decision making is effective relative to analytical decision making. Seeking to address this deficiency, we conducted two laboratory studies assessing the link between domain expertise (low…

  16. Impact of Computer Expertise, Locus of Control and Self-Esteem on ...

    African Journals Online (AJOL)

    The present study considered the influence of self-esteem, locus of control and computer expertise on computer-induced stress in a cross sectional survey. One hundred and fifty cyber café users drawn from 10 cyber cafes randomly chosen from University of Ibadan and its environs participated in the study. Of the 150 ...

  17. Faculty Perceptions of Expertise among Teachers of Students with Severe Disabilities

    Science.gov (United States)

    Ruppar, Andrea; Roberts, Carly; Olson, Amy Jo

    2015-01-01

    Given recent increased attention to teacher evaluation, it is imperative to understand the expertise teachers need to educate students with severe disabilities. In this grounded theory study, the authors interviewed nine special education faculty who specialize in severe disabilities about the job-related skills and qualities exhibited by expert…

  18. Instructional Design for Advanced Learners: Training Recognition Skills to Hasten Expertise

    Science.gov (United States)

    Fadde, Peter Jae

    2009-01-01

    Expertise in domains ranging from sports to surgery involves a process of recognition-primed decision-making (RPD) in which experts make rapid, intuitive decisions based on recognizing critical features of dynamic performance situations. While the development of expert RPD is assumed to require years of domain experience, the transition from…

  19. Infrastructures of expertise: policy convergence and the implementation of the EU Nitrates Directive in Poland

    NARCIS (Netherlands)

    Kowalczewska, Katarzyna; Behagel, J.H.; Turnhout, E.

    2017-01-01

    Access to the EU leads to a process of policy convergence in which member states’ institutions and policy cultures become increasingly adapted to align with an EU governance system. Especially in EU environmental policy, knowledge and expertise are key aspects of the institutions and policy cultures

  20. Music and words in the visual cortex: The impact of musical expertise.

    Science.gov (United States)

    Mongelli, Valeria; Dehaene, Stanislas; Vinckier, Fabien; Peretz, Isabelle; Bartolomeo, Paolo; Cohen, Laurent

    2017-01-01

    How does the human visual system accommodate expertise for two simultaneously acquired symbolic systems? We used fMRI to compare activations induced in the visual cortex by musical notation, written words and other classes of objects, in professional musicians and in musically naïve controls. First, irrespective of expertise, selective activations for music were posterior and lateral to activations for words in the left occipitotemporal cortex. This indicates that symbols characterized by different visual features engage distinct cortical areas. Second, musical expertise increased the volume of activations for music and led to an anterolateral displacement of word-related activations. In musicians, there was also a dramatic increase of the brain-scale networks connected to the music-selective visual areas. Those findings reveal that acquiring a double visual expertise involves an expansion of category-selective areas, the development of novel long-distance functional connectivity, and possibly some competition between categories for the colonization of cortical space. Copyright © 2016 Elsevier Ltd. All rights reserved.