An Activity Theoretical Approach to Social Interaction during Study Abroad

ERIC Educational Resources Information Center

Shively, Rachel L.

2016-01-01

This case study examines how one study abroad student oriented to social interaction during a semester in Spain. Using an activity theoretical approach, the findings indicate that the student not only viewed social interaction with his Spanish host family and an expert-Spanish-speaking age peer as an opportunity for second language (L2) learning,…

Rethinking a Case Study Method in Educational Research: A Comparative Analysis Method in Qualitative Research

ERIC Educational Resources Information Center

Murakami, Yusuke

2013-01-01

There are two types of qualitative research that analyze a small number of cases or a single case: idiographic differentiation and nomothetic/generalization. There are few case studies of generalization. This is because theoretical inclination is weak in the field of education, and the binary framework of quantitative versus qualitative research…

Three Cases of Adolescent Childbearing Decision-Making: The Importance of Ambivalence

ERIC Educational Resources Information Center

Bender, Soley S.

2008-01-01

Limited information is available about the childbearing decision-making experience by the pregnant adolescent. The purpose of this case study was to explore this experience with three pregnant teenagers. The study is based on nine qualitative interviews. Within-case descriptions applying the theoretical model of decision-making regarding unwanted…

Individual Differences in Written Corrective Feedback: A Multi-Case Study

ERIC Educational Resources Information Center

Li, Su; Li, Pengjing

2012-01-01

Written corrective feedback (WCF) has been a long time practice in L2 writing instruction. However, in many cases, the effects are not satisfactory. There have been controversies about it both theoretically and empirically. This paper reports a multi-case study exploring individual differences that impact learners' responses to WCF. Four students'…

Mode Deactivation Therapy (MDT): A Theoretical Case Analysis on a Suicidal Adolescent

ERIC Educational Resources Information Center

Apsche, Jack A.; Siv, Alexander M.

2005-01-01

This case study presents a case study of the effectiveness of Mode deactivation therapy (MDT) (Apsche, Bass, Jennings, Murphy, Hunter, and Siv, 2005) with an adolescent male, with reactive conduct disorder, PTSD and 8 lethal suicide attempts. The youngster was hospitalized four times for suicide attempts, three previous placements in residential…

Problem-based learning in optical engineering studies

NASA Astrophysics Data System (ADS)

Voznesenskaya, Anna

2016-09-01

Nowadays, the Problem-Based Learning (PBL) is one of the most prospective educational technologies. PBL is based on evaluation of learning outcomes of a student, both professional and personal, instead of traditional evaluation of theoretical knowledge and selective practical skills. Such an approach requires changes in the curricula development. There should be introduced projects (cases) imitating real tasks from the professional life. These cases should include a problem summary with necessary theoretic description, charts, graphs, information sources etc, task to implement and evaluation indicators and criteria. Often these cases are evaluated with the assessment-center method. To motivate students for the given task they could be divided into groups and have a contest. Whilst it looks easy to implement in social, economic or teaching fields PBL is pretty complicated in engineering studies. Examples of cases in the first-cycle optical engineering studies are shown in this paper. Procedures of the PBL implementation and evaluation are described.

Mentoring Trainee Music Teachers: Beyond Apprenticeship or Reflection

ERIC Educational Resources Information Center

Cain, Tim

2007-01-01

This article explores the theoretical concepts of "apprenticeship" and "reflection" in Initial Teacher Education music mentoring. It presents two case studies of Secondary music mentoring and relates these to the theoretical concepts. The article argues that a more integrated view of music mentoring might be provided with…

Investigating nurse practitioners in the private sector: a theoretically informed research protocol.

PubMed

Adams, Margaret; Gardner, Glenn; Yates, Patsy

2017-06-01

To report a study protocol and the theoretical framework normalisation process theory that informs this protocol for a case study investigation of private sector nurse practitioners. Most research evaluating nurse practitioner service is focused on public, mainly acute care environments where nurse practitioner service is well established with strong structures for governance and sustainability. Conversely, there is lack of clarity in governance for emerging models in the private sector. In a climate of healthcare reform, nurse practitioner service is extending beyond the familiar public health sector. Further research is required to inform knowledge of the practice, operational framework and governance of new nurse practitioner models. The proposed research will use a multiple exploratory case study design to examine private sector nurse practitioner service. Data collection includes interviews, surveys and audits. A sequential mixed method approach to analysis of each case will be conducted. Findings from within-case analysis will lead to a meta-synthesis across all four cases to gain a holistic understanding of the cases under study, private sector nurse practitioner service. Normalisation process theory will be used to guide the research process, specifically coding and analysis of data using theory constructs and the relevant components associated with those constructs. This article provides a blueprint for the research and describes a theoretical framework, normalisation process theory in terms of its flexibility as an analytical framework. Consistent with the goals of best research practice, this study protocol will inform the research community in the field of primary health care about emerging research in this field. Publishing a study protocol ensures researcher fidelity to the analysis plan and supports research collaboration across teams. © 2016 John Wiley & Sons Ltd.

Beyond the Language Classroom

ERIC Educational Resources Information Center

Benson, Phil, Ed.; Reinders, Hayo, Ed.

2011-01-01

This comprehensive exploration of theoretical and practical aspects of out-of-class teaching and learning, from a variety of perspectives and in various settings around the world, includes a theoretical overview of the field, 11 data-based case studies, and practical advice on materials development for independent learning. Contents of this book…

Protein Engineering: Case Studies of Commercialized Engineered Products

ERIC Educational Resources Information Center

Walsh, Gary

2007-01-01

Programs in biochemistry invariably encompass the principles of protein engineering. Students often display increased understanding and enthusiasm when theoretical concepts are underpinned by practical example. Herein are presented five case studies, each focusing upon a commercial protein product engineered to enhance its application-relevant…

Quantum-Theoretical Methods and Studies Relating to Properties of Materials

DTIC Science & Technology

1989-12-19

particularly sensitive to the behavior of the electron distribution close to the nuclei, which contributes only to E(l). Although the above results were...other condensed phases. So it was a useful test case to test the behavior of the theoretical computations for the gas phase relative to that in the...increasingly complicated and time- comsuming electron-correlation approximations should assure a small error in the theoret- ically computed enthalpy for a

School Leadership and Administration: Important Concepts, Case Studies and Simulations

ERIC Educational Resources Information Center

Gorton, Richard; Alston, Judy; Snowden, Petra

2006-01-01

This text helps prospective and experienced principals, administrators, and supervisors increase their knowledge and skills through concepts, case-studies, and simulations. This book contains the following two parts and fifteen chapters. Part I presents important theoretical concepts and research findings that can improve educators'…

Toward a Theoretical Framework for Membership: The Case of Undocumented Immigrants and Financial Aid for Postsecondary Education

ERIC Educational Resources Information Center

Perry, Andre M.

2006-01-01

This case study/philosophical analysis responds to the primary research question: "Should undocumented immigrants receive financial aid by responding to the sub-question: What does it mean to be a member of society?" The case study organizes and collects empirical evidence from stakeholders involved in Texas House Bill 1403 (2001),…

Is probabilistic bias analysis approximately Bayesian?

PubMed Central

MacLehose, Richard F.; Gustafson, Paul

2011-01-01

Case-control studies are particularly susceptible to differential exposure misclassification when exposure status is determined following incident case status. Probabilistic bias analysis methods have been developed as ways to adjust standard effect estimates based on the sensitivity and specificity of exposure misclassification. The iterative sampling method advocated in probabilistic bias analysis bears a distinct resemblance to a Bayesian adjustment; however, it is not identical. Furthermore, without a formal theoretical framework (Bayesian or frequentist), the results of a probabilistic bias analysis remain somewhat difficult to interpret. We describe, both theoretically and empirically, the extent to which probabilistic bias analysis can be viewed as approximately Bayesian. While the differences between probabilistic bias analysis and Bayesian approaches to misclassification can be substantial, these situations often involve unrealistic prior specifications and are relatively easy to detect. Outside of these special cases, probabilistic bias analysis and Bayesian approaches to exposure misclassification in case-control studies appear to perform equally well. PMID:22157311

The Limits of Multistakeholder Governance: The Case of the Global Partnership for Education and Private Schooling

ERIC Educational Resources Information Center

Menashy, Francine

2017-01-01

This study investigates collective decision making within a multistakeholder partnership through a case study of the Global Partnership for Education (GPE). Analyzed through the theoretical framework of sociological institutionalism, this study applies the issue of private schooling as a lens to understand policy-related decision making between…

EFL Student-Teachers' Identity Construction: A Case Study in Chile

ERIC Educational Resources Information Center

Salinas, Dánisa; Ayala, Maximiliano

2018-01-01

The objective of this study is to explore the process of professional identity construction of two English as a foreign language student-teachers from a sociocultural theoretical lens. A qualitative case study was conducted through personal narratives, semi-structured interviews, and a focus group. The data were analyzed using a grounded theory…

Empirical factors and structure transference: Returning to the London account

NASA Astrophysics Data System (ADS)

Bueno, Otávio; French, Steven; Ladyman, James

2012-05-01

We offer a framework to represent the roles of empirical and theoretical factors in theory construction, and examine a case study to illustrate how the framework can be used to illuminate central features of scientific reasoning. The case study provides an extension of French and Ladyman's (1997) analysis of Fritz and Heinz London's model of superconductivity to accommodate the role of the analogy between superconductivity and diamagnetic phenomena in the development of the model between 1935 and 1937. We focus on this case since it allows us to separate the roles of empirical and theoretical factors, and so provides an example of the utility of the approach that we have adopted. We conclude the paper by drawing on the particular framework here developed to address a range of concerns.

The Influence of Theoretical Mathematical Foundations on Teaching and Learning: A Case Study of Whole Numbers in Elementary School

ERIC Educational Resources Information Center

Chambris, Christine

2018-01-01

This paper examines the existence and impact of theoretical mathematical foundations on the teaching and learning of whole numbers in elementary school in France. It shows that the study of the New Math reform--which was eventually itself replaced in the longer term--provides some keys to understanding the influence of mathematical theories on…

Schooling's "Contribution" to Contemporary Violent Conflict: Review of Theoretical Ideas and Case Studies in the Field of Education and Conflict

ERIC Educational Resources Information Center

Matsumoto, Mitsuko

2015-01-01

Some argue that the field of study of "education and conflict" has yet to be solidified since its emergence in the 1990s, partly due to the weak theory base. This article reviews the literature on the "contribution" of schooling in contemporary violent conflict, via three strands of theoretical ideas, to demonstrate the…

Adult Financial Literacy Education and Latina Learners: A Qualitative Case Study

ERIC Educational Resources Information Center

Sprow, Karin Millard

2010-01-01

This qualitative study used a case study design to explore the teaching and learning that takes place in an adult Latino financial literacy education that was aimed specifically at Latina single mothers. The theoretical framework of the study was informed by a blend of critical and Latina feminist sociocultural adult learning perspectives, as well…

Information Needs and Information Competencies: A Case Study of the Off-Site Supervision of Financial Institutions in Brazil

ERIC Educational Resources Information Center

Miranda, Silvania V.; Tarapanoff, Kira M. A.

2008-01-01

Introduction: The paper deals with the identification of the information needs and information competencies of a professional group. Theoretical basis: A theoretical relationship between information needs and information competencies as subjects is proposed. Three dimensions are examine: cognitive, affective and situational. The recognition of an…

An Explanatory Model of Teacher Movement within Ontario School Boards

ERIC Educational Resources Information Center

Sibbald, Timothy M.

2017-01-01

Teacher movement within school boards is examined using multiple case study. Emergent themes achieved theoretical saturation and are consistent with the research literature. In this paper, the relationships between the themes are used to develop a substantive theoretical model of teacher movement within school boards. The model uses a two-phase…

Clinical Reasoning in the Assessment and Intervention Planning for a Reading Disability

ERIC Educational Resources Information Center

Sotelo-Dynega, Marlene

2017-01-01

The purpose of this article is to provide the reader with insight into the clinical reasoning process involved in the assessment and intervention planning for a child with a reading disability. A Cattell-Horn-Carroll (CHC) theoretical/neuropsychological approach shall serve as the foundational theoretical framework for this case study, and…

Organizational Learning and Product Design Management: Towards a Theoretical Model.

ERIC Educational Resources Information Center

Chiva-Gomez, Ricardo; Camison-Zornoza, Cesar; Lapiedra-Alcami, Rafael

2003-01-01

Case studies of four Spanish ceramics companies were used to construct a theoretical model of 14 factors essential to organizational learning. One set of factors is related to the conceptual-analytical phase of the product design process and the other to the creative-technical phase. All factors contributed to efficient product design management…

Theoretical Perspectives on Learning in an Informal Setting.

ERIC Educational Resources Information Center

Anderson, David; Lucas, Keith B.; Ginns, Ian S.

2003-01-01

Reports the findings of an interpretive case study of the knowledge transformations of three Year 7 students who had participated in a class visit to a science museum and associated post-visit activities. Discusses theoretical and practical implications of these findings for teachers and staff of museums and similar institutions. (Author/KHR)

The Influence of the Pedagogical Content Knowledge Theoretical Framework on Research on Preservice Teacher Education

ERIC Educational Resources Information Center

Mecoli, Storey

2013-01-01

Pedagogical Content Knowledge, Lee S. Shulman's theoretical framework, has had a substantial influence on research in preservice teacher education, and consequently, schools of education. This review builds from Grossman's case studies that concluded that beginning teachers provided with excellent teacher education developed more substantial PCK…

Review Article: Yamada, Jeni "Laura: A Case for the Modularity of Language"; Tomasello, Michael "First Verbs: A Case Study of Early Grammatical Development."

ERIC Educational Resources Information Center

Shatz, Marilyn

1994-01-01

Jeni Yamada's "Laura" and Michael Tomasello's "First Verbs" continue a tradition of providing useful information on the language ability of individuals in a depth rarely found in multisubject studies; however, these efforts are unusual for case studies in that both take strong theoretical positions on the essence of language and language learning.…

Conscientization and Third Space: A Case Study of Tunisian Activism

ERIC Educational Resources Information Center

Boumlik, Habiba; Schwartz, Joni

2016-01-01

This case study examines, "Al Bawsala," a nongovernmental organization and a female cyber social activist, Amira Yahyaoui, in the aftermath of Tunisia's Jasmine Revolution through the lens of adult education. The theoretical frameworks of conscientization and third space are employed to describe Yahyaoui's development of the watchdog…

Collaborative Textbook Selection: A Case Study Leading to Practical and Theoretical Considerations

ERIC Educational Resources Information Center

Czerwionka, Lori; Gorokhovsky, Bridget

2015-01-01

This case study developed a collaborative approach to the selection of a Spanish language textbook. The collaborative process consisted of six steps, detailed in this article: team building, generating evaluation criteria, formulating a meaningful rubric, selecting prospective textbooks, calculating rubric results, and reflectively reviewing…

Dissatisfaction Theory in the 21st Century

ERIC Educational Resources Information Center

Adler, Louise

2010-01-01

This case study uses two theoretical lenses to analyze political events in a Southern California school district: dissatisfaction theory and groupthink. The case study technique of pattern matching was used to frame the analysis (Yin, 2009). Data for 1992-2008 was gathered from interviews, the Orange County Registrar of Voters, newspapers,…

Thermo-elastic-plastic analysis for elastic component under high temperature fatigue crack growth rate

NASA Astrophysics Data System (ADS)

Ali, Mohammed Ali Nasser

The research project presents a fundamental understanding of the fatigue crack growth mechanisms of AISI 420 martensitic stainless steel, based on the comparison analysis between the theoretical and numerical modelling, incorporating research findings under isothermal fatigue loading for solid cylindrical specimen and the theoretical modelling with the numerical simulation for tubular specimen when subjected to cyclic mechanical loading superimposed by cyclic thermal shock.The experimental part of this research programme studied the fatigue stress-life data for three types of surface conditions specimen and the isothermal stress-controlled fatigue testing at 300 °C - 600 °C temperature range. It is observed that the highest strength is obtained for the polished specimen, while the machined specimen shows lower strength, and the lowest strength is the notched specimen due to the high effect of the stress concentration. The material behaviour at room and high temperatures shows an initial hardening, followed by slow extension until fully plastic saturation then followed by crack initiation and growth eventually reaching the failure of the specimen, resulting from the dynamic strain ageing occurred from the transformation of austenitic microstructure to martensite and also, the nucleation of precipitation at grain boundaries and the incremental temperature increase the fatigue crack growth rate with stress intensity factor however, the crack growth rate at 600 °C test temperature is less than 500 °C because of the creep-fatigue taking place.The theoretical modelling presents the crack growth analysis and stress and strain intensity factor approaches analysed in two case studies based on the addition of thermo-elastic-plastic stresses to the experimental fatigue applied loading. Case study one estimates the thermal stresses superimposed sinusoidal cyclic mechanical stress results in solid cylinder under isothermal fatigue simulation. Case study two estimates the transient thermal stresses superimposed on cyclic mechanical loading results in hollow cylinder under thermal shock in heating case and down shock cooling case. The combination of stress and strain intensity factor theoretical calculations with the experimental output recorded data shows a similar behaviour with increasing temperature, and there is a fair correlation between the profiles at the beginning and then divergence with increasing the crack length. The transient influence of high temperature in case two, giving a very high thermal shock stress as a heating or cooling effects, shifting up the combined stress, when applied a cyclic mechanical load in fraction of seconds, and the reputations of these shocks, causing a fast failure under high thermal shock stress superimposed with mechanical loading.Finally, the numerical modelling analyses three cases studied were solved due to the types of loading and types of specimen geometry by using finite element models constructed through the ANSYS Workbench version 13.0. The first case is a low cyclic fatigue case for a solid cylinder specimen simulated by applying a cyclic mechanical loading. The second is an isothermal fatigue case for solid cylinder specimen simulated by supplying different constant temperatures on the outer surface with cyclic mechanical loading, where the two cases are similar to the experimental tests and the third case, is a thermo-mechanical fatigue for a hollow cylinder model by simulating a thermal up-shock generated due to transient heating on the outer surface of the model or down shock cooling on the inner surface with the cyclic mechanical loading. The results show a good agreement with the experimental data in terms of alternative stress and life in the first case. In case two results show the strain intensity factor is increases with increasing temperature similar to the theoretical solution due to the influence of the modulus of elasticity and the difference in life estimation with the experimental output record is related to the input data made of theoretical physical properties and the experimental stress-life data.

Re-reading "Little Hans": Freud's case study and the question of competing paradigms in psychoanalysis.

PubMed

Midgley, Nicholas

2006-01-01

Psychoanalysts have long recognized the complex interaction between clinical data and formal psychoanalytic theories. While clinical data are often used to provide "evidence" for psychoanalytic paradigms, the theoretical model used by the analyst also structures what can and cannot be seen in the data. This delicate interaction between theory and clinical data can be seen in the history of interpretations of Freud's "Analysis of a Phobia in a Five-Year-Old Boy" ("Little Hans"). Freud's himself revised his reading of the case in 1926, after which a number of psychoanalysts--including Melanie Klein, Jacques Lacan, and John Bowlby--reinterpreted the case in the light of their particular models of the mind. These analysts each found "evidence" for their theoretical model within this classic case study, and in doing so they illuminated aspects of the case that had previously been obscured, while also revealing a great deal about the shifting preoccupations of psychoanalysis as a field.

Alternative approaches to analytical designs in occupational injury epidemiology.

PubMed

Mittleman, M A; Maldonado, G; Gerberich, S G; Smith, G S; Sorock, G S

1997-08-01

In this paper, we discuss the theoretical framework upon which observational studies of occupational injuries are based. Following a general description of how causal effects are estimated, the challenges faced by researchers working in this area are outlined, with an emphasis on case-control studies. These challenges include defining the at-risk period for workers whose tasks change over time and whose hazard period may be very brief, evaluating the underreporting of both exposures and injuries, and considering the effects of multiple injuries per individual on study design and data analysis. We review both the theoretical and practical considerations in the design and conduct of traditional case-control studies, based on the collection of individual level data, as well as other approaches, such as using information culled from administrative and descriptive databases, and case-control studies in which the plant or work site is the unit of analysis. The case-crossover design is also reviewed and its utility for reducing confounding due to differences between individuals by self-matching is highlighted. While this design has not yet been applied to the work setting, its potential for increasing our understanding of the causes of acute-onset occupational injuries seems promising. Finally, a variety of hybrid designs are discussed, including combinations of case-control, case-crossover, and cohort designs.

Effect of digital problem-based learning cases on student learning outcomes in ophthalmology courses.

PubMed

Kong, Jun; Li, Xiaoyan; Wang, Youdong; Sun, Wei; Zhang, Jinsong

2009-09-01

To assess the impact of digital problem-based learning (PBL) cases on student learning in ophthalmology courses. Ninety students were randomly divided into 3 classes (30 students per class). The first class studied under a didactic model. The other 2 classes were divided into 6 groups (10 students per group) and received PBL teaching; 3 groups studied via cases presented in digital form and the others studied via paper-form cases. The results of theoretical and case analysis examinations were analyzed using the chi(2) test. Student performance on the interval practice was analyzed using the Kruskal-Wallis test. Questionnaires were used to evaluate student and facilitator perceptions. Students in the digital groups exhibited better performance in the practice procedures according to tutorial evaluations compared with the other groups (P < .05). The 2 PBL classes had significantly higher mean results of theoretical and case analysis examinations (P < .001), but there was no significant difference between the 2 PBL classes. Ninety-three percent of students in the digital groups (vs 73% in the paper groups) noted that the cases greatly stimulated their interest. Introducing PBL into ophthalmology could improve educational quality and effectiveness. Digital PBL cases stimulate interest and motivate students to further improve diagnosis and problem-handling skills.

Using Illustrations to Depict Preservice Science Teachers' Self-Efficacy: A Case Study

ERIC Educational Resources Information Center

Greco, Robert Del; Bernadowski, Carianne; Parker, Susan

2018-01-01

This qualitative case study conducted at a small private university in the U.S. found that preservice teacher self-efficacy increased over the course of four semesters when taught inquiry-based instruction from a Social Constructivist Theoretical framework. This study utilized "A Draw a Science Teacher Test Checklist (DASTT-C)" created…

Case Studies of Interactive Whole-Class Teaching in Primary Science: Communicative Approach and Pedagogic Purposes

ERIC Educational Resources Information Center

McMahon, Kendra

2012-01-01

By developing two case studies of expert teaching in action, this study aimed to develop knowledge of talk in whole-class teaching in UK primary science lessons and understand this in relation to both the teachers' interpretations and sociocultural theoretical frameworks. Lessons were observed and video-recorded and the teachers engaged in…

Identity Formation of LBOTE Preservice Teachers during the Practicum: A Case Study in Australia in an Urban High School

ERIC Educational Resources Information Center

Nguyen, Hoa Thi Mai; Sheridan, Lynn

2016-01-01

This study captures the experiences of language background other than English (LBOTE) preservice teachers using a case study approach to explore identity development. Wenger's (2000) "modes of belonging" form the theoretical framework to develop an understanding of the factors contributing to teacher identity. This article draws on…

The Case Method in Teacher Education: Alaskan Models. ERIC Digest.

ERIC Educational Resources Information Center

Kleinfeld, Judith

This ERIC digest discusses the theoretical basis of case teaching and examines its strengths and limitations as a tool for teacher education. Case teaching presents authentic, concrete teaching problems for students to analyze. The study of a classroom fight, for example, might draw discussion of racial, ethical, political, and other community…

Short Term International Study for Teachers as a Form of Experiential Learning: A Case Study of American Educators in Turkey

ERIC Educational Resources Information Center

Berk, Zulfikar

2017-01-01

This dissertation is a case study of the experiences and perspectives of nine US teachers who participated in a short-term international study tour to Turkey, from the theoretical perspectives of global education and experiential learning. It examines how that experience shaped the teachers' understandings of global dynamics, cultural differences…

Socialism. Grade Ten, Unit Two, 10.2. Comprehensive Social Studies Curriculum for the Inner City.

ERIC Educational Resources Information Center

Malone, Helen

The socialism unit of the tenth grade level of the FICSS series (Focus on Inner City Social Studies -- see SO 008 271) explores a selected history of socialist thought and the theoretical model of socialism. Three case studies of socialism are explored: Great Britain, Sweden, and Israel. The case studies are designed to answer questions concerning…

A Case Study: Motivating and Supporting Faculty Members Who Teach Online Courses in a Private University

ERIC Educational Resources Information Center

Mann, Cristen

2013-01-01

The purpose of this qualitative case study was to explore how faculty members teaching online courses at one private university perceived the types of pedagogical training and support they needed in order to effectively facilitate online courses. Building on the theoretical foundation of andragogy, the study of adult education, this study explored…

Teacher Agency in the Performance of Inquiry-Oriented Science Curriculum Reform

ERIC Educational Resources Information Center

Oliveira, Alandeom W.

2012-01-01

In this commentary, I consider several theoretical and analytical aspects of Tang Wee Teo and Margery Osborne's case study. I begin by identifying structuralist and cultural themes in Tang Wee and Margery's theoretical model of human activity. Next, I offer an alternative interpretation for Tang Wee and Margery's reported findings in terms of the…

Beyond the Four Ps: A Theoretical Explication and Research Agenda for Social Marketing.

ERIC Educational Resources Information Center

Sego, Trina

Advocates of social marketing in the 1970s rarely went beyond discussion of the marketing 4Ps (product, place, promotion, and price) and their application to case studies. After two decades of research on social marketing, some misunderstanding of the approach persists, and a substantial theoretical base for social marketing has not been…

The Theoretical Research Article as a Reflection of Disciplinary Practices: The Case of Pure Mathematics

ERIC Educational Resources Information Center

Kuteeva, Maria; McGrath, Lisa

2015-01-01

Recent years have seen an interest in the generic structure of empirical research articles across a variety of disciplines. However, significantly less attention has been given to theoretical articles. This study aims to begin to address this imbalance by presenting the results of an investigation into the organizational and rhetorical structure…

Developing Mathematics Teacher Knowledge: The Paradidactic Infrastructure of "Open Lesson" in Japan

ERIC Educational Resources Information Center

Miyakawa, Takeshi; Winslow, Carl

2013-01-01

In this paper, we first present a theoretical approach to study mathematics teacher knowledge and the conditions for developing it, which is firmly rooted in a systemic approach to didactic phenomena at large, namely the anthropological theory of the didactic. Then, a case of open lesson is presented and analysed, using this theoretical approach,…

Theoretical Perspectives of Male Sexual Abuse: Conceptualization of a Case Study

ERIC Educational Resources Information Center

Diamanduros, Terry; Cosentino, Clare E.; Tysinger, P. Dawn; Tysinger, Jeffrey A.

2012-01-01

The purpose of this article is to demonstrate the traumatic impact that sexual abuse can have on a young male's development by addressing mediating dispositions that can render a child vulnerable to the effects of sexual abuse. Consideration is given to three different theoretical perspectives that are not exclusive to male victims but shed light…

The Influence of Theoretical Tools on Teachers' Orientation to Notice and Classroom Practice: A Case Study

ERIC Educational Resources Information Center

Mellone, Maria

2011-01-01

Assumptions about the construction and the transmission of knowledge and about the nature of mathematics always underlie any teaching practice, even if often unconsciously. I examine the conjecture that theoretical tools suitably chosen can help the teacher to make such assumptions explicit and to support the teacher's reflection on his/her…

The Design of Effective Case Study-Related Learning Strategies Training.

ERIC Educational Resources Information Center

Nuttall, Alice E.

The development of case study training materials for an experimental research strategy is described, and the effects of such training are discussed. The theoretical foundation for learning strategies training was a social-cognitive/expectancy value model of college learning and teaching. In a posttest-only 2-group design, 54 students in an…

The Significance of Motivation in Student-Centred Learning: A Reflective Case Study

ERIC Educational Resources Information Center

Maclellan, Effie

2008-01-01

The theoretical underpinnings of student-centred learning suggest motivation to be an integral component. However, lack of clarification of what is involved in motivation in education often results in unchallenged assumptions that fail to recognise that what motivates some students may alienate others. This case study, using socio-cognitive…

Learning "Rules" of Practice within the Context of the Practicum Triad: A Case Study of Learning to Teach

ERIC Educational Resources Information Center

Chalies, Sebastien; Escalie, Guillaume; Stefano, Bertone; Clarke, Anthony

2012-01-01

This case study sought to determine the professional development circumstances in which a preservice teacher learned rules of practice (Wittgenstein, 1996) on practicum while interacting with a cooperating teacher and university supervisor. Borrowing from a theoretical conceptualization of teacher professional development based on the postulates…

Leading though Language Learning and Teaching: The Case of Gandhi

ERIC Educational Resources Information Center

Eaton, Sarah Elaine

2010-01-01

Purpose: The purpose of this paper is to link the notions of language learning and leadership, using Gandhi as a case study. Theoretical Framework: This work is studied through a constructivist lens, and is further influenced by Educational Leadership thinkers such as Michael Fullan (2006). Methodology: Choosing a broad general theme of interest…

Early Career Teachers' Emotional Experiences and Development--A Norwegian Case Study

ERIC Educational Resources Information Center

Jakhelln, Rachel

2011-01-01

Emotional experiences that are an integral part of the process of becoming teachers have been insufficiently explored in the research literature. The early experiences of three new teachers in a Norwegian upper secondary school are analysed using a collective case-study design and a socio-cultural theoretical framework. Emotions arising in the…

Constructing Affective Security in Children: Case Study in Educational Environments

ERIC Educational Resources Information Center

Margenat, Montserrat; Dalmau, Mariona; Vendrell, Roser; Ibarz, Lidia

2016-01-01

In line with Bowlby's theoretical approach, where he established a relationship between the quality of experiences lived in the first relationships and subsequent behaviours, we are carrying out a case study research project. The objectives are as follows: (1) To describe interactive patterns as observed in natural contexts and focusing on the…

Educational Leadership in a Competitive State: A Contradiction in Terms?

ERIC Educational Resources Information Center

Moos, Lejf

2012-01-01

Purpose: The purpose of this paper is to explore how important the choice of theoretical perspective is on the analyses of empirical data from a Danish case study. Design/methodology/approach: The empirical bases for the analyses are qualitative, longitudinal case studies of school leadership in the International Successful School Principalship…

A Case Study of Struggle and Success: Profiling a Third Grader's Reading and Writing in a Multimodal Curriculum

ERIC Educational Resources Information Center

Wiseman, Angela M.; Pendleton, Melissa; Christiansen, Christine; Nesheim, Nicole

2017-01-01

This article reports findings on a case study of Ellie as she participates in a language arts curriculum that incorporates multimodal literacy practices--including photography, drama, and art--to teach reading and writing. Our study was informed by the theoretical framework of multimodal social semiotics, which provides insight into how…

Higher Education and Employability: A Case Study of Debt and Justice in the Process to Becoming A Work College

ERIC Educational Resources Information Center

Bolger, Andrew T.

2017-01-01

This study presents the findings that emerged in a qualitative policy-oriented case study of an institution's transition to a work college. Using Resource Dependence Theory as the theoretical framework, 32 individual interviews were collected, along with other observational data and institutional archives to understand the appeal of federal policy…

A Case Study to Evaluate Balance Training with Movement Test Items and through Teaching Observation: Beyond Specificity and Transfer of Learning

ERIC Educational Resources Information Center

Kluwe, Margret; Miyahara, Motohide; Heveldt, Kate

2012-01-01

Background: Specificity and transfer of learning have been examined in experimental studies. However, their findings may not be relevant to practitioners because of the difference between the experiment conditions and teaching situations. This case study investigates the theoretical issue of specificity vs. transfer of learning by conducting…

The Effect of Teacher's Assistance on Malaysian Rural Learners' Writing Self-Efficacy: A Case Study

ERIC Educational Resources Information Center

Jalaluddin, Ilyana; Yunus, Melor Md.; Yamat, Hamidah

2011-01-01

The purpose of the study is to explore the Malaysian rural learners' self-efficacy in writing after assistance given by a teacher. The social cognitive theory and socio-cultural theory are used as the theoretical framework to pursue the discussion on the effects of teacher's assistance on learners' writing self-efficacy. A case study approach is…

Educating Citizens for Participatory Democracy: A Case Study of Local Government Education Policy in Pelotas, Brazil

ERIC Educational Resources Information Center

McCowan, Tristan

2006-01-01

A case study was undertaken of Pelotas, a large town in southern Brazil, where a recent government of the Workers' Party (PT) implemented a range of social policy reforms. The study draws on interviews with key members of the Municipal Secretariat of Education and policy documents, analyzing them in relation to theoretical literature on…

Principal Sensemaking of Inclusion: A Multi-Case Study of Five Urban School Principals

ERIC Educational Resources Information Center

DeMatthews, David Edward

2012-01-01

This study examined how five principals working in one urban school district made sense of inclusion. I employed a multi-case study guided by the theoretical framework of sensemaking. Weick's sensemaking theory was useful in examining the way principals made sense of inclusion. Each of the seven characteristics of Weick's sensemaking…

Causes of Low Graduation Rates in a Rural High School Located in South Carolina: A Case Study

ERIC Educational Resources Information Center

Sumter, Pamela Robinson

2013-01-01

This qualitative case study examined causes of low graduation rates for young adults. The purpose of this study was to evaluate students participating in an after-school program and reflect on their perceptions of that program a year after they graduated. The theoretical framework for this study reflected upon an open social system. The research…

Situated Learning in Youth Elite Football: A Danish Case Study among Talented Male under-18 Football Players

ERIC Educational Resources Information Center

Christensen, Mette Krogh; Laursen, Dan Norgaard; Sorensen, Jan Kahr

2011-01-01

Background: The application of a social theory of learning and the notion of situated learning as a theoretical basis for understanding students' learning in PE is broadly recognised. Nevertheless, it is far more unusual for this theoretical approach to provide a basis for understanding learning processes in talent development in elite sport.…

Developing EFL Learners' Speaking Skills through Dynamic Assessment: A Case of A Beginner and an Advanced Learner

ERIC Educational Resources Information Center

Ebadi, Saman; Asakereh, Ahmad

2017-01-01

Dynamic assessment (DA), having its theoretical base in Vygotskyan Sociocultural theory of mind, is a newly developed classroom assessment through which learners are helped to perform beyond their current ability. Drawing upon the theoretical aspect of DA, the present study explored the impact of DA on the development of speaking skills. To this…

Using Acceptance and Commitment Therapy to Treat Distressed Couples: A Case Study With Two Couples

ERIC Educational Resources Information Center

Peterson, Brennan D.; Eifert, Georg H.; Feingold, Tal; Davidson, Sarah

2009-01-01

Although the field of couple therapy has made significant strides in recent years, there continues to be a need for theoretically sound and empirically supported treatments. The current case study examines whether Acceptance and Commitment Therapy (ACT), an experiential acceptance-based behavior therapy, can be effective in treating distressed…

Information Seeking in Organizational Communication: A Case Study of Applied Theory.

ERIC Educational Resources Information Center

Grunig, James E.

An experimental seminar in corporate communication at the University of Maryland was designed to (1) develop a set of theoretical concepts useful to the organizational communicator who functions as a mediator between management and labor, (2) utilize a practical methodology for these concepts, and (3) conduct a case study in cooperation with an…

Identity Dystopias, Empire Framing and Theoretical Hegemonies: Two Case Studies, India and Ireland

ERIC Educational Resources Information Center

Allender, Tim; O'Donoghue, Tom

2014-01-01

This article explores the connections between official contemporary identity formation and colonial pasts. Using the case studies of India and Ireland the article explores how different traditions of theorisation are powerful in these formations. India and Ireland were two colonial domains that had many linkages outside the ambit of the British.…

Transdisciplinary Case Studies as a Means of Sustainability Learning: Historical Framework and Theory

ERIC Educational Resources Information Center

Scholz, Roland W.; Lang, Daniel J.; Wiek, Arnim; Walter, Alexander I.; Stauffacher, Michael

2006-01-01

Purpose: This paper aims at presenting the theoretical concepts of the transdisciplinary case study approach (TCS), which is a research and teaching approach developed and elaborated at the Swiss Federal Institute of Technology (ETH), as a means of transition support. Design/methodology/approach: The paper reveals the historical roots of case…

Internationalization of an African University in the Post-Colonial Era: A Case Study of the University of Nairobi

ERIC Educational Resources Information Center

Otieno, Iddah Aoko

2012-01-01

This case study uses post-colonial and dependency theoretical lenses to investigate the forces influencing policy, procedures, and participation in international activity in the post-colonial African university environment of Kenya's first national public university-the University of Nairobi (UoN). The research addresses (1) the approaches and…

Practice through Partnership: Examining the Theoretical Framework and Development of a "Community of Musical Practice"

ERIC Educational Resources Information Center

Kenny, Ailbhe

2014-01-01

This article examines the development of a "community of musical practice" (CoMP) which emerged within a research case study in Limerick, Ireland. The case study was a music education partnership between a third level institution, a resource agency and a primary school. Using a "community of practice" (CoP) theoretical…

The Convergence of Content, Pedagogy, and Technology in Online Professional Development for Teachers of German: An Intrinsic Case Study

ERIC Educational Resources Information Center

Bustamante, Carolina; Moeller, Aleidine J.

2013-01-01

This qualitative case study describes a unique online professional development program utilizing Web 2.0 technologies for teachers of German using the Technological Pedagogical Content Knowledge (TPACK) model as a theoretical framework to promote technology literacy, expand German language proficiency and cultural knowledge, and integrate…

Project-Based Social Justice Mathematics: A Case Study of Five 6th Grade Students

ERIC Educational Resources Information Center

McHugh, Maighread L.

2015-01-01

The purpose of this qualitative multiple case study was to explore how five sixth grade female students navigated the process of project-based learning as they designed and implemented their own project centered on mathematics while using a social justice lens. The theoretical frameworks of Authentic Intellectual Work and Social Justice…

Who "owns" the network: a case study of new media artists' use of high-bandwidth networks

NASA Astrophysics Data System (ADS)

Lesage, F.

The objective of this paper is to briefly give an overview of a research project dealing with the social construction of use of information communication technologies among new media artists interested in online collaboration. It will outline the theoretical and methodological tools applied to the case study of the MARCEL Network.

Uncovering the Layers of Foreign Language Teacher Socialization: A Qualitative Case Study of Fulbright Language Teaching Assistants

ERIC Educational Resources Information Center

Uzum, Baburhan

2017-01-01

This qualitative case study explored how a novice language teacher negotiated her pedagogical beliefs and practices during her socialization into a foreign cultural and educational context. The focal participant was an Uzbek language teacher at a university in the USA. Using a language socialization theoretical framework, data were drawn from…

Spiritual Diversity and Living with Early-Stage Dementia.

PubMed

McGee, Jocelyn Shealy; Zhao, Holly Carlson; Myers, Dennis R; Seela Eaton, Hannah

2018-01-01

Attention to spiritual diversity is necessary for the provision of culturally informed clinical care for people with early-stage dementia and their family members. In this article, an evidence-based theoretical framework for conceptualizing spiritual diversity is described in detail (Pargament, 2011). The framework is then applied to two clinical case studies of people living with early-stage dementia to elucidate the multilayered components of spiritual diversity in this population. The case studies were selected from a larger mixed-methods study on spirituality, positive psychological factors, health, and well-being in people living with early-stage dementia and their family members. To our knowledge this is the first systematic attempt to apply a theoretical framework for understanding spiritual diversity in this population. Implications for clinical practice are provided.

Adlerian and Analytic Theory: A Case Presentation.

ERIC Educational Resources Information Center

Myers, Kathleen M.; Croake, James W.

1984-01-01

Makes a theoretical comparison between Adlerian and analytic formulations of family assessment in a case study involving a recently divorced couple and a child with encopresis. Discussed the family relationship in terms of object relations theory emphasizing intrapsychic experience, and Adlerian theory emphasizing the purposes of behavior. (JAC)

Testing the Consolidated Framework for Implementation Research on health care innovations from South Yorkshire.

PubMed

Ilott, Irene; Gerrish, Kate; Booth, Andrew; Field, Becky

2013-10-01

There is an international imperative to implement research into clinical practice to improve health care. Understanding the dynamics of change requires knowledge from theoretical and empirical studies. This paper presents a novel approach to testing a new meta theoretical framework: the Consolidated Framework for Implementation Research. The utility of the Framework was evaluated using a post hoc, deductive analysis of 11 narrative accounts of innovation in health care services and practice from England, collected in 2010. A matrix, comprising the five domains and 39 constructs of the Framework was developed to examine the coherence of the terminology, to compare results across contexts and to identify new theoretical developments. The Framework captured the complexity of implementation across 11 diverse examples, offering theoretically informed, comprehensive coverage. The Framework drew attention to relevant points in individual cases together with patterns across cases; for example, all were internally developed innovations that brought direct or indirect patient advantage. In 10 cases, the change was led by clinicians. Most initiatives had been maintained for several years and there was evidence of spread in six examples. Areas for further development within the Framework include sustainability and patient/public engagement in implementation. Our analysis suggests that this conceptual framework has the potential to offer useful insights, whether as part of a situational analysis or by developing context-specific propositions for hypothesis testing. Such studies are vital now that innovation is being promoted as core business for health care. © 2012 John Wiley & Sons Ltd.

Development of a software safety process and a case study of its use

NASA Technical Reports Server (NTRS)

Knight, John C.

1993-01-01

The goal of this research is to continue the development of a comprehensive approach to software safety and to evaluate the approach with a case study. The case study is a major part of the project, and it involves the analysis of a specific safety-critical system from the medical equipment domain. The particular application being used was selected because of the availability of a suitable candidate system. We consider the results to be generally applicable and in no way particularly limited by the domain. The research is concentrating on issues raised by the specification and verification phases of the software lifecycle since they are central to our previously-developed rigorous definitions of software safety. The theoretical research is based on our framework of definitions for software safety. In the area of specification, the main topics being investigated are the development of techniques for building system fault trees that correctly incorporate software issues and the development of rigorous techniques for the preparation of software safety specifications. The research results are documented. Another area of theoretical investigation is the development of verification methods tailored to the characteristics of safety requirements. Verification of the correct implementation of the safety specification is central to the goal of establishing safe software. The empirical component of this research is focusing on a case study in order to provide detailed characterizations of the issues as they appear in practice, and to provide a testbed for the evaluation of various existing and new theoretical results, tools, and techniques. The Magnetic Stereotaxis System is summarized.

University of Wolverhampton Case Study: Embedding Practical Work-Based Modules into a Traditionally, Theoretical Programme

ERIC Educational Resources Information Center

Nicholls, Emma; Walsh, Margaret

2007-01-01

Purpose: This case study aims to provide a critical evaluation of the decision by the University of Wolverhampton's School of Legal Studies to develop a number of work-based learning modules, offered as part of the undergraduate programme. It seeks to examine why the School has taken the approach of embedding work-based learning into what has…

An Investigation of the Artifacts and Process of Constructing Computers Games about Environmental Science in a Fifth Grade Classroom

ERIC Educational Resources Information Center

Baytak, Ahmet; Land, Susan M.

2011-01-01

This study employed a case study design (Yin, "Case study research, design and methods," 2009) to investigate the processes used by 5th graders to design and develop computer games within the context of their environmental science unit, using the theoretical framework of "constructionism." Ten fifth graders designed computer games using "Scratch"…

"Growing Up" through the Middle Level Years: A Case Study in Leadership Actions Necessary to Meet Students' Needs

ERIC Educational Resources Information Center

Smith, M. Melissa Richard

2010-01-01

The purpose of this qualitative study was to examine the journey of a suburban middle level principal, as she led a school through an educational change process. This was a single case study design involving the school leader as principal participant, and the researcher as participant observer. The theoretical model that was developed for this…

How Adults in Developmental Reading Courses Describe Their Educational Life Experiences: A Phenomenological Case Study Examining Whether Experiences Influence Reading Attitudes and Decision-Making Processes

ERIC Educational Resources Information Center

Reece Armour, Ashley

2017-01-01

The purpose of this phenomenological case study is to explore the reading attitudes and decision-making skills of college freshmen enrolled in remedial language arts courses. The theoretical framework guiding this study is qualitative phenomenology explained by Baxter and Jack (2008). This specific type of research "provides tools for…

Routines in School Organizations: Creating Stability and Change

ERIC Educational Resources Information Center

Conley, Sharon; Enomoto, Ernestine K.

2005-01-01

Purpose: This paper presents routinized action theory as a way to examine the regular, habitual activities that occur in school organizations. Using this theoretical lens, school routines were analyzed in order to understand organizational stability and change. Design/methodology/approach: Using case study methods, three discrete cases are…

Classification and Framing in the Case Method: Discussion Leaders' Questions

ERIC Educational Resources Information Center

Badger, James

2010-01-01

Basil Bernstein's classification and framing was adopted as a theoretical model to analyse the instruction of two university professors who incorporated case studies into their graduate business and education courses. Classification and framing allows for a meaningful analysis of the discussion leader's questions that facilitate students'…

Training Post-9/11 Police Officers with a Counter-Terrorism Reality-Based Training Model: A Case Study

ERIC Educational Resources Information Center

Biddle, Christopher J.

2013-01-01

The purpose of this qualitative holistic multiple-case study was to identify the optimal theoretical approach for a Counter-Terrorism Reality-Based Training (CTRBT) model to train post-9/11 police officers to perform effectively in their counter-terrorism assignments. Post-9/11 police officers assigned to counter-terrorism duties are not trained…

Design-Grounded Assessment: A Framework and a Case Study of Web 2.0 Practices in Higher Education

ERIC Educational Resources Information Center

Ching, Yu-Hui; Hsu, Yu-Chang

2011-01-01

This paper synthesis's three theoretical perspectives, including sociocultural theory, distributed cognition, and situated cognition, into a framework to guide the design and assessment of Web 2.0 practices in higher education. In addition, this paper presents a case study of Web 2.0 practices. Thirty-seven online graduate students participated in…

Media Literacy, News Literacy, or News Appreciation? A Case Study of the News Literacy Program at Stony Brook University

ERIC Educational Resources Information Center

Fleming, Jennifer

2014-01-01

This case study provides practical and theoretical insights into the Stony Brook news literacy program, which is one of the most ambitious and well-funded curricular experiments in modern journalism education and media literacy. Analysis of document, interview, and observation data indicates that news literacy educators sought to teach students…

Acculturation Strategy, Integration Paradoxes and Educational Adaptation--A Case Study of Chinese Visiting Scholar's Family in the United States

ERIC Educational Resources Information Center

Weidong, Li; Chen, Sisi

2017-01-01

In this case study, we developed a theoretical framework for examining the relationship between acculturation strategy and educational adaptation. By interviews and observations of one Chinese visiting scholar's family in the United States, we found that the family utilized "integration" as the acculturation strategy to adapt to the US…

Pathways to Death Row for America's Disabled Youth: Three Case Studies Driving Reform

ERIC Educational Resources Information Center

Schroeder, Julie; Guin, Cecile C.; Chaisson, Rebecca; Houchins, David

2004-01-01

This article uses the case study method to examine the lives of three youths with disabilities living in the southern part of the United States who have followed a pathway to death row. An empirically established developmental and theoretical framework is used to examine issues related to the influence of disabilities and race on children and…

Theoretical and Computational Studies of Stability, Transition and Flow Control in High-Speed Flows

DTIC Science & Technology

2008-02-14

subsonic perturbations, there is an overlapping of four modes. This case has not been considered yet elsewhere. Similarly to the other cases , one can derive...weights for the vorticity and entropy modes. Similarly to the incompressible case [Tum03], one can see that there is a discrepancy between the...turbulence’ [FK01]. In conventional computational studies , one could observe the generation of the instability mode only in the far field, where the

Boiling of the interface between two immiscible liquids below the bulk boiling temperatures of both components.

PubMed

Pimenova, Anastasiya V; Goldobin, Denis S

2014-11-01

We consider the problem of boiling of the direct contact of two immiscible liquids. An intense vapour formation at such a direct contact is possible below the bulk boiling points of both components, meaning an effective decrease of the boiling temperature of the system. Although the phenomenon is known in science and widely employed in technology, the direct contact boiling process was thoroughly studied (both experimentally and theoretically) only for the case where one of liquids is becoming heated above its bulk boiling point. On the contrary, we address the case where both liquids remain below their bulk boiling points. In this paper we construct the theoretical description of the boiling process and discuss the actualisation of the case we consider for real systems.

Cooperation of a Dissatisfied Adaptive Prisoner's Dilemma in Spatial Structures

NASA Astrophysics Data System (ADS)

Zhang, Wen; Li, Yao-Sheng; Du, Peng; Xu, Chen

2013-10-01

We study the cooperative behavior of a dissatisfied adaptive prisoner's dilemma via a pair updating rule. We compare two kinds of relationship among the competing agents, one is the well-mixed population and the other is the two-dimensional square lattice. It is found that the cooperation emerges in both the cases and the frequency of cooperation is enhanced in the square lattice. Though it is impossible for the cooperators to have a higher average payoff than that of the defectors in the well-mixed case, the cooperators in the spatial square lattice could have higher average payoffs in certain regions of the game parameters. We theoretically analyze the well-mixed case exactly and the square lattice by pair approximation. The theoretic results are in agreement with the simulation data.

The Optimal Convergence Rate of the p-Version of the Finite Element Method.

DTIC Science & Technology

1985-10-01

commercial and research codes. The p-version and h-p versions are new developments. There is only one commercial code, the system PROBE ( Noetic Tech, St...Louis). The theoretical aspects have been studied only recently. The first theoretical paper appeared in 1981 (see [7)). See also [1), [7], [81, [9...model problem (2.2) (2.3) is a classical case of the elliptic equation problem on a nonsmooth domain. The structure of this problem is well studied

Net motion of acoustically levitating nano-particles: A theoretical analysis

NASA Astrophysics Data System (ADS)

Lippera, Kevin; Dauchot, Olivier; Benzaquen, Michael; Gulliver-LadHyX Collaboration

2017-11-01

A particle 2D-trapped in the nodal planed of a standing acoustic wave is prone to acoustic-phoretic motion as soon as its shape breaks polar or chiral symmetry. such a setup constitues an ideal system to study boundaryless 2D collective behavior with purely hydrodynamic long range interactions. Recent studies have indeed shown that quasi-spherical particles may undergo net propulsion, a feature partially understood theoretically in the particular case of infinite viscous boundary layers. We here extend the theoretical results of to any boundary layer thickness, by that meeting typical experimental conditions. In addition, we propose an explanation for the net spinning of the trapped particles, as observed in experiments.

The Situation of ICT Usage in Nagoya University Law School

NASA Astrophysics Data System (ADS)

Kaneko, Daisuke; Sugawara, Ikuo

Since the introduction of a new legal education system in 2004, some of Japanese legal educational institutions have changed into professional schools which names are Law School. These law schools are required not only theoretical studies but also professional skills training. Law students, however, have limited time to complete this agenda, so law professors have to teach courses effectively. In this paper, the authors present the situation of ICT usage in Nagoya University Law School as a case study to describe and to critique systems to support theoretical studies and professional skills training.

A Longitudinal View of the Liberal Arts Curriculum a Decade after Merger: A Multiple Case Study of Community Colleges in Connecticut, Kentucky, and Louisiana

ERIC Educational Resources Information Center

Norton, Ann; Wilson, Kristin

2015-01-01

This study is an examination of the state of the liberal arts curriculum in community colleges in three geographic regions of the United States. From a constructivist paradigm and using globalization theory as a theoretical framework, this multiple case study examined faculty work life and administrative processes related to curriculum change in…

Four Aspects of Civic Education: Teaching the History and Geography of the Land of Israel as a Case Study

ERIC Educational Resources Information Center

Cohen, Aviv

2009-01-01

At the center of this study stands the will to understand the use of the subjects of History and Geography as means of civic education. A new theoretical framework is offered, encompassing different aspects of civic education. With the use of this framework, the Israeli educational system was evaluated as a case study. (Contains 1 table, 1 figure,…

An Investigation into the Challenges In-Service Student Teachers Encounter in Transformational Geometry, "Reflection and Rotation". The Case of Mufulira College of Education

ERIC Educational Resources Information Center

Kambilombilo, Dennis; Sakala, Whyson

2015-01-01

The study was conducted to investigate the challenges in-service mathematics student teachers face in transformational geometry; reflection and rotation. The Van Hiele Theory of levels of Thought was used as the theoretical framework for this study. A case study was undertaken using a written test. The research was carried on second and third…

Antenatal Workup of Early Megacystis and Selection of Candidates for Fetal Therapy.

PubMed

Fontanella, Federica; Duin, Leonie; Adama van Scheltema, Phebe N; Cohen-Overbeek, Titia E; Pajkrt, Eva; Bekker, Mireille; Willekes, Christine; Bax, Caroline J; Oepkes, Dick; Bilardo, Catia M

2018-05-17

To investigate the best criteria for discriminating fetuses with isolated posterior urethral valves from those theoretically not eligible for fetal treatment because of complex megacystis, high chance of spontaneous resolution, and urethral atresia. A retrospective national study was conducted in fetuses with megacystis detected before 17 weeks' gestation (early megacystis). In total, 142 cases with fetal megacystis were included in the study: 52 with lower urinary tract obstruction, 29 with normal micturition at birth, and 61 with miscellaneous syndromal associations, chromosomal and multiple structural abnormalities (complex megacystis). Only a nuchal translucency > 95th centile, and not a longitudinal bladder diameter ≤15 mm (p = 0.24), significantly increased the risk of complex megacystis (p < 0.01). Cases with a high chance of spontaneous resolution were identified by using the cut-off of 12 mm, as demonstrated in a previous study, and the finding of an associated umbilical cord cyst carried a high-risk of urethral atresia (odds ratio: 15; p = 0.026), an unfavorable condition for antenatal treatment. An algorithm encompassing these three criteria demonstrated good accuracy in selecting fetuses theoretically eligible for fetal treatment (specificity 73%; sensitivity 92%). Cases theoretically eligible for early fetal therapy are those with normal nuchal translucency, a longitudinal bladder diameter > 12 mm, and without ultrasound evidence of umbilical cord cysts. © 2018 The Author(s) Published by S. Karger AG, Basel.

Optimal control model predictions of system performance and attention allocation and their experimental validation in a display design study

NASA Technical Reports Server (NTRS)

Johannsen, G.; Govindaraj, T.

1980-01-01

The influence of different types of predictor displays in a longitudinal vertical takeoff and landing (VTOL) hover task is analyzed in a theoretical study. Several cases with differing amounts of predictive and rate information are compared. The optimal control model of the human operator is used to estimate human and system performance in terms of root-mean-square (rms) values and to compute optimized attention allocation. The only part of the model which is varied to predict these data is the observation matrix. Typical cases are selected for a subsequent experimental validation. The rms values as well as eye-movement data are recorded. The results agree favorably with those of the theoretical study in terms of relative differences. Better matching is achieved by revised model input data.

Nativization processes in L1 Esperanto.

PubMed

Bergen, B K

2001-10-01

The artificial language Esperanto is spoken not only as a second language, by its proponents, but also as a native language by children of some of those proponents. The present study is a preliminary description of some characteristics of the Native Esperanto (NE) of eight speakers, ranging in age from six to fourteen years. As such, it is the first of its kind--previous works on NE are either theoretical treatises or individual case studies. We find, at least for the eight subjects studied, both bilingualism and nativization effects, differentiating native from non-native Esperanto speech. Among these effects are loss or modification of the accusative case, phonological reduction, attrition of the tense/aspect system, and pronominal cliticization. The theoretical ramifications are discussed, particularly with regard to universals of language acquisition and the effects of expressive requirements of language.

A Case Study Examining the Influence of Dual Enrollment and High School Advising on Student Persistence in College

ERIC Educational Resources Information Center

Raia-Taylor, Maureen

2012-01-01

This qualitative,descriptive single case study describes the problem of student persistence in college through the theoretical lens of Alexander Astin's Theory of Student Involvement, and Vincent Tinto's Theory of Student Departure. The decline in the college retention rate in the United States over the last twenty years and the high…

No Need to Wait for Superman: A Case Study of One Unique High School

ERIC Educational Resources Information Center

Ratcliff, N. J.; Jones, C. R.; Costner, R. H.; Knight, C.; Disney, G.; Savage-Davis, E.; Sheehan, H.; Hunt, G. H.

2012-01-01

Based on a theoretical model developed by Schlechty, this case study focuses on a small high school, located on a college campus and designed to address the educational needs of gifted 9th- through 12th-grade students. Eight teachers who taught 9th- and 12th-grade classes and their 60 students were observed. Each teacher was observed during six…

Growing Pains from Rapid Growth: A Historical Case Study of George Fox University from 1983 to 2003

ERIC Educational Resources Information Center

Railsback, Gary L.

2007-01-01

This article is a historical case study of George Fox University (GFU) in Newberg, Oregon. Using organizational lifecycle as a theoretical framework, George Fox University had a long and delayed childhood in that it remained a small and struggling institution for most of the 20th century, and then experienced rapid growth in the late 1980s. This…

Contextual Shifting: Teachers Emphasizing Students' Academic Identity to Promote Scientific Literacy

ERIC Educational Resources Information Center

Reveles, John M.; Brown, Bryan A.

2008-01-01

This research presents a case study of two teachers' emphasis on students' academic identity as a means of facilitating their science literacy development. These cases support a theoretical position that deconstructs the notion of normative science literacy into its constitutive components: (a) being scientific and (b) appropriating its literate…

Is Schooling Good for the Development of Society?: The Case of South Africa

ERIC Educational Resources Information Center

Harber, Clive; Mncube, Vusi

2011-01-01

This paper is concerned with three possible theoretical relationships, between education and social, economic and political development, that--(a) education improves society, (b) education reproduces society as it is and (c) education actually makes society worse. The paper then uses South Africa as a case study to critically analyse these…

Problems Teachers Face When Doing Action Research and Finding Possible Solutions: Three Cases

ERIC Educational Resources Information Center

Zhou, Jun

2012-01-01

Through case studies, this paper explores problems teachers face when doing action research: for instance, teachers may misunderstand the research, mistrust university researchers, lack the time or adequate library resources to conduct research, lack theoretical guidance or knowledge of research methodology, and feel pressure or frustration during…

Educational Change: A Case for a "Pedagogy of Compassion"

ERIC Educational Resources Information Center

Vandeyar, Saloshna; Swart, Ronel

2016-01-01

This paper sets out to advance the concept of an "epistemology of compassion" first proposed by Vandeyar (2013; 2016). Utilising a single embedded case study and the theoretical mooring of post-conflict pedagogy this paper attempts to find links between Jansen's perceptions of a post-conflict pedagogy and Freirean pedagogy and to argue a…

User-Design: A Case Application in Health Care Training.

ERIC Educational Resources Information Center

Carr-Chellman, Alison; Cuyar, Craig; Breman, Jeroen

1998-01-01

Discussion of user-design as a theoretical process for creating training, software, and computer systems focuses on a case study that describes user-design methodology in home health care through the context of diffusing a new laptop patient-record-keeping system with home nurses. Research needs and implications for the design process are…

Productive Learning Practice--A Theoretical Discussion Based on Two Cases

ERIC Educational Resources Information Center

Lillejord, Solvi; Dysthe, Olga

2008-01-01

In this article, we frame "productive learning" in a sociocultural perspective to show how it ties into a cluster of concepts on activity and transformation and illuminates the relation between learning processes and learning products. Based on two case studies, we argue that understanding learning as action entails developing the students'…

Meta-Action Research with Pre-Service Teachers: A Case Study

ERIC Educational Resources Information Center

Villacañas de Castro, Luis Sebastián

2014-01-01

This article analyses a case of action research collaboratively conducted by a university teacher and 50 students in a master's course in teacher training. Its originality resides in the socio-economic, academic, and conceptual nature of the obstacles encountered in the module; in the meta-theoretical orientation of the action research that was…

Theory and Contrastive Explanation in Ethnography

ERIC Educational Resources Information Center

Lichterman, Paul; Reed, Isaac Ariail

2015-01-01

We propose three interlinked ways that theory helps researchers build causal claims from ethnographic research. First, theory guides the casing and re-casing of a topic of study. Second, theoretical work helps craft a clear causal question via the construction of a contrast space of the topic of investigation. Third, the researcher uses theory to…

Public administration and R&D localisation by pharmaceutical and biotech companies: a theoretical framework and the Italian case-study.

PubMed

Jommi, Claudio; Paruzzolo, Silvia

2007-04-01

This article has two objectives. It firstly provides a general framework for variables that influence R&D (Research and Development) localisation by pharmaceutical and biotech companies. The analysis of R&D localization includes both in-house R&D and contracted R&D. Following a systematic literature search, these variables were classified into four distinct categories: regulatory environment, institutional framework, national systems of innovation and local development and specialisation. The authors highlight that some of these factors directly depend on the action of public administrations (e.g., patent protection, price regulation, public investments in research, and incentives to private companies); others are indirectly influenced by public policies (e.g., GDP growth rate, infrastructures). This theoretical framework was used to analyse the Italian case-study. Pros and cons of the Italian context were investigated from the point of view of multinational pharmaceutical companies and the Italian Association of Biotech Companies. Interviews were chosen as the most appropriate data gathering technique given the exploratory nature of the study of the Italian context. The paper is divided into five parts. A brief introduction provides figures showing that Europe has been loosing positions compared with other Continents and the same has occurred in Italy compared with other EU countries. The second one illustrates the methodology. The third one is focused on variables affecting R&D localisation. In the fourth section the Italian case-study is discussed. Theoretical and empirical findings are summarised and discussed in the conclusions.

Learning from New York City : a case study of public health policy practice in the Bloomberg administration.

PubMed

Isett, Kimberley Roussin; Laugesen, Miriam J; Cloud, David H

2015-01-01

To ascertain any lessons learned about how public health reforms undertaken in New York City during the Bloomberg Administration were shepherded through the public policy and administration gauntlet. The question is, how feasible is this approach and would it work outside of New York City? Using a theoretically grounded case study approach, 3 initiatives were examined that were proposed and/or implemented during a 10-year period of the Mayoralty of Michael Bloomberg (2002-2011): transfats restrictions, clean bus transportation policies, and a sugar-sweetened beverages tax (as a counterfactual). The investigation began by performing a comprehensive public documents search and was followed with interviews of 27 individuals involved in the selected policy initiatives. Interviews were coded in Nvivo using an iterative, grounded methodology. Using a theoretical lens, the case study illustrates that the multifaceted role of leadership was not confined to the executives in the City or the Agency. Instead, leadership extended to other administrative officials within the agency and the Board of Health. Second, New York City used reorganization and coordinative mechanisms strategically to ensure achievement of their goals. This included creation of new departments/bureaus and coordinating structures across the City. Evidence of the explicit use of incentives, as initially anticipated from the theoretical framework, was not found. While some aspects of this case study are unique to the context of New York City, 2 approaches used in New York City are feasible for other jurisdictions: harnessing the full scope and breadth of authority of the agency and its associated boards and commissions, and remobilizing existing workforce to explicitly focus on and coordinate targeted policies for issues of concern. Questions for further consideration are posed at the conclusion of the article.

On building methodological and theoretical frameworks to examine the interrelationships between environmental change and armed conflict

NASA Astrophysics Data System (ADS)

Van Den Hoek, J.

2014-12-01

Relationships between environmental change and armed conflict have long been studied. Sometimes referred to as 'warfare' or 'conflict' ecology, much of this scholarship has come in response to local-level perceptions of landscape or livelihood changes that result from regional armed conflict. However, such studies have, first, typically focused on spatiotemporally acute and readily detectable environmental change, like deforestation, to the exclusion of protracted and more subtle environmental changes, like agricultural degradation; second, been limited to situational conflicts or circumstances, thereby inhibiting broader theoretical development; and, third, often only considered the environmental consequences rather than the environmental or climatic circumstances that may contribute to conflict. As a result, there is little opportunity for methodological or theoretical cohesion between studies. In this presentation, I synthesize findings from three case studies examining the interrelationships between agricultural change and armed conflict in the semi-arid landscapes of northwest Pakistan, Palestine, and southern Syria. Using coarse through very high resolution remotely sensed imagery, socio-economic and demographic data, conflict databases, open-source programming, and building on theoretical underpinnings of political ecology and conflict studies, I present methods and modeling approaches that aid in overcoming data scarcity and disparity between scales of analysis and integrate environmental and conflict data in spatiotemporally explicit ways. Results from these case studies illuminate the interrelationships between both protracted and acute agricultural change and armed conflict, and have broad relevance for understanding the means by which environment, conflict, and livelihoods are linked, a nexus that will only become tighter with the advance of global climate change.

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

Zou, Ling; Zhao, Haihua; Kim, Seung Jun

In this study, the classical Welander’s oscillatory natural circulation problem is investigated using high-order numerical methods. As originally studied by Welander, the fluid motion in a differentially heated fluid loop can exhibit stable, weakly instable, and strongly instable modes. A theoretical stability map has also been originally derived from the stability analysis. Numerical results obtained in this paper show very good agreement with Welander’s theoretical derivations. For stable cases, numerical results from both the high-order and low-order numerical methods agree well with the non-dimensional flow rate analytically derived. The high-order numerical methods give much less numerical errors compared to themore » low-order methods. For stability analysis, the high-order numerical methods could perfectly predict the stability map, while the low-order numerical methods failed to do so. For all theoretically unstable cases, the low-order methods predicted them to be stable. The result obtained in this paper is a strong evidence to show the benefits of using high-order numerical methods over the low-order ones, when they are applied to simulate natural circulation phenomenon that has already gain increasing interests in many future nuclear reactor designs.« less

Effect of wear on the burst strength of l-80 steel casing

NASA Astrophysics Data System (ADS)

Irawan, S.; Bharadwaj, A. M.; Temesgen, B.; Karuppanan, S.; Abdullah, M. Z. B.

2015-12-01

Casing wear has recently become one of the areas of research interest in the oil and gas industry especially in extended reach well drilling. The burst strength of a worn out casing is one of the significantly affected mechanical properties and is yet an area where less research is done The most commonly used equations to calculate the resulting burst strength after wear are Barlow, the initial yield burst, the full yield burst and the rupture burst equations. The objective of this study was to estimate casing burst strength after wear through Finite Element Analysis (FEA). It included calculation and comparison of the different theoretical bursts pressures with the simulation results along with effect of different wear shapes on L-80 casing material. The von Misses stress was used in the estimation of the burst pressure. The result obtained shows that the casing burst strength decreases as the wear percentage increases. Moreover, the burst strength value of the casing obtained from the FEA has a higher value compared to the theoretical burst strength values. Casing with crescent shaped wear give the highest burst strength value when simulated under nonlinear analysis.

Impulsive control of stochastic systems with applications in chaos control, chaos synchronization, and neural networks.

PubMed

Li, Chunguang; Chen, Luonan; Aihara, Kazuyuki

2008-06-01

Real systems are often subject to both noise perturbations and impulsive effects. In this paper, we study the stability and stabilization of systems with both noise perturbations and impulsive effects. In other words, we generalize the impulsive control theory from the deterministic case to the stochastic case. The method is based on extending the comparison method to the stochastic case. The method presented in this paper is general and easy to apply. Theoretical results on both stability in the pth mean and stability with disturbance attenuation are derived. To show the effectiveness of the basic theory, we apply it to the impulsive control and synchronization of chaotic systems with noise perturbations, and to the stability of impulsive stochastic neural networks. Several numerical examples are also presented to verify the theoretical results.

Numerical study on the Welander oscillatory natural circulation problem using high-order numerical methods

DOE PAGES

Zou, Ling; Zhao, Haihua; Kim, Seung Jun

2016-11-16

In this study, the classical Welander’s oscillatory natural circulation problem is investigated using high-order numerical methods. As originally studied by Welander, the fluid motion in a differentially heated fluid loop can exhibit stable, weakly instable, and strongly instable modes. A theoretical stability map has also been originally derived from the stability analysis. Numerical results obtained in this paper show very good agreement with Welander’s theoretical derivations. For stable cases, numerical results from both the high-order and low-order numerical methods agree well with the non-dimensional flow rate analytically derived. The high-order numerical methods give much less numerical errors compared to themore » low-order methods. For stability analysis, the high-order numerical methods could perfectly predict the stability map, while the low-order numerical methods failed to do so. For all theoretically unstable cases, the low-order methods predicted them to be stable. The result obtained in this paper is a strong evidence to show the benefits of using high-order numerical methods over the low-order ones, when they are applied to simulate natural circulation phenomenon that has already gain increasing interests in many future nuclear reactor designs.« less

Memoryscape

Treesearch

Lindsay Campbell

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

Ethylenediammonium dication: H-bonded complexes with terephthalate, chloroacetate, phosphite, selenite and sulfamate anions. Detailed vibrational spectroscopic and theoretical studies of ethylenediammonium terephthalate

NASA Astrophysics Data System (ADS)

Marchewka, M. K.; Drozd, M.

2012-12-01

Crystalline complexes between ethylenediammonium dication and terephthalate, chloroacetate, phosphite, selenite and sulfamate anions were obtained by slow evaporation from water solution method. Room temperature powder infrared and Raman measurements were carried out. For ethylenediammonium terephthalate theoretical calculations of structure were performed by two ways: ab-initio HF and semiempirical PM3. In this case the PM3 method gave more accurate structure (closer to X-ray results). The additional PM3 calculations of vibrational spectra were performed. On the basis theoretical approach and earlier vibrational studies of similar compounds the vibrational assignments for observed bands have been proposed. All compounds were checked for second harmonic generation (SHG).

Investigation of Bohr Hamiltonian in presence of Killingbeck potential using bi-confluent Heun functions

NASA Astrophysics Data System (ADS)

Sobhani, Hadi; Hassanabadi, Hassan; Chung, Won Sang

2018-05-01

In this study, Bohr Hamiltonian is studied for the triaxial and rotational cases. In both cases, Killingbeck potential is used as interaction. The wave function and energy of these cases are found using bi-confluent Heun functions. The results are examined by reproducing experimental data of some isotopes for each case. Energy levels of the isotopes are shown graphically as well as theoretical results for staggering in γ bands of the isotopes is discussed. In the next step, we argue about B (E 2) transition rates of the isotopes for each case. The results have a good agreement with experimental data.

Creative uncertainty

Treesearch

Victoria Marshall; Dil Hoda

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

Two-wavelength ghost imaging through atmospheric turbulence.

PubMed

Shi, Dongfeng; Fan, Chengyu; Zhang, Pengfei; Shen, Hong; Zhang, Jinghui; Qiao, Chunhong; Wang, Yingjian

2013-01-28

Recent work has indicated that ghost imaging might find useful application in standoff sensing where atmospheric turbulence is a serious problem. There has been theoretical study of ghost imaging in the presence of turbulence. However, most work has addressed signal-wavelength ghost imaging. Two-wavelength ghost imaging through atmospheric turbulence is theoretically studied in this paper. Based on the extended Huygens-Fresnel integral, the analytical expressions describing atmospheric turbulence effects on the point spread function (PSF) and field of view (FOV) are derived. The computational case is also reported.

The Military-Industrial-Scientific Complex and the Rise of New Powers: Conceptual, Theoretical and Methodological Contributions and the Brazilian Case

DTIC Science & Technology

2017-09-29

Report: The Military-Industrial-Scientific Complex and the Rise of New Powers: Conceptual, Theoretical and Methodological Contributions and the... Methodological Contributions and the Brazilian Case Report Term: 0-Other Email: aminvielle@ucsd.edu Distribution Statement: 1-Approved for public

Controlling the Didactic Relation: A Case in Process Engineering Education

ERIC Educational Resources Information Center

Jaako, Juha

2014-01-01

A case study was conducted during 1994-2013 on several groups of process engineering students to see what was needed to transform a single course from a teacher-centred to a student-centred learning environment (SCLE). Development work was done incrementally, using Herbart's didactic triangle as a theoretical framework. The effects of the…

Exploring the Progression in Preservice Chemistry Teachers' Pedagogical Content Knowledge Representations: The Case of "Behavior of Gases"

ERIC Educational Resources Information Center

Adadan, Emine; Oner, Diler

2014-01-01

This multiple case study investigated how two preservice chemistry teachers' pedagogical content knowledge (PCK) representations of behavior of gases progressed in the context of a semester-long chemistry teaching methods course. The change in the participants' PCK components was interpreted with respect to the theoretical PCK learning…

Evolution of Forms of Representation in a Modelling Activity: A Case Study

ERIC Educational Resources Information Center

Garuti, Rossella; Dapueto, Carlo; Boero, Paolo

2003-01-01

The report describes a mathematical modelling activity of a natural phenomenon (transmission of hereditary characters in a codominance case) using the concept of model as a theoretical instrument. The chosen tool enables us to show how the construction of a link between reality and a model is related to the evolution of the graphical…

Single case studies as a means for developing psychological theories.

PubMed

Skvortsov, Anatoliy; Romashchuk, Alexander

2015-12-01

The Socratic function of single case studies (SCSs) is described in its relation to the problem of scientific theory development. Contrary to the traditional point of view, the single case study is not a demonstration or verification of theoretical concepts, but a method of their generation and opportunity for analysis of their interrelations. Considering the case study from the perspective of the Socratic function brings to light important conclusions about the ecological validity of theory development. The essential features of the Socratic function are illustrated using the example of the famous Romantic Essays of Alexandr Luria. © 2015 The Institute of Psychology, Chinese Academy of Sciences and Wiley Publishing Asia Pty Ltd.

Changes in symptom intensity and emotion valence during the process of assimilation of a problematic experience: A quantitative study of a good outcome case of cognitive-behavioral therapy.

PubMed

Basto, Isabel; Pinheiro, Patrícia; Stiles, William B; Rijo, Daniel; Salgado, João

2017-07-01

The assimilation model describes the change process in psychotherapy. In this study we analyzed the relation of assimilation with changes in symptom intensity, measured session by session, and changes in emotional valence, measured for each emotional episode, in the case of a 33-year-old woman treated for depression with cognitive-behavioral therapy. Results showed the theoretically expected negative relation between assimilation of the client's main concerns and symptom intensity, and the relation between assimilation levels and emotional valence corresponded closely to the assimilation model's theoretical feelings curve. The results show how emotions work as markers of the client's current assimilation level, which could help the therapist adjust the intervention, moment by moment, to the client's needs.

Genes, language, and the nature of scientific explanations: the case of Williams syndrome.

PubMed

Musolino, Julien; Landau, Barbara

2012-01-01

In this article, we discuss two experiments of nature and their implications for the sciences of the mind. The first, Williams syndrome, bears on one of cognitive science's holy grails: the possibility of unravelling the causal chain between genes and cognition. We sketch the outline of a general framework to study the relationship between genes and cognition, focusing as our case study on the development of language in individuals with Williams syndrome. Our approach emphasizes the role of three key ingredients: the need to specify a clear level of analysis, the need to provide a theoretical account of the relevant cognitive structure at that level, and the importance of the (typical) developmental process itself. The promise offered by the case of Williams syndrome has also given rise to two strongly conflicting theoretical approaches-modularity and neuroconstructivism-themselves offshoots of a perennial debate between nativism and empiricism. We apply our framework to explore the tension created by these two conflicting perspectives. To this end, we discuss a second experiment of nature, which allows us to compare the two competing perspectives in what comes close to a controlled experimental setting. From this comparison, we conclude that the "meaningful debate assumption", a widespread assumption suggesting that neuroconstructivism and modularity address the same questions and represent genuine theoretical alternatives, rests on a fallacy.

Are polynuclear superhalogens without halogen atoms probable? A high-level ab initio case study on triple-bridged binuclear anions with cyanide ligands

NASA Astrophysics Data System (ADS)

Yin, Bing; Li, Teng; Li, Jin-Feng; Yu, Yang; Li, Jian-Li; Wen, Zhen-Yi; Jiang, Zhen-Yi

2014-03-01

The first theoretical exploration of superhalogen properties of polynuclear structures based on pseudohalogen ligand is reported here via a case study on eight triply-bridged [Mg2(CN)5]- clusters. From our high-level ab initio results, all these clusters are superhalogens due to their high vertical electron detachment energies (VDE), of which the largest value is 8.67 eV at coupled-cluster single double triple (CCSD(T)) level. Although outer valence Green's function results are consistent with CCSD(T) in most cases, it overestimates the VDEs of three anions dramatically by more than 1 eV. Therefore, the combined usage of several theoretical methods is important for the accuracy of purely theoretical prediction of superhalogen properties of new structures. Spatial distribution of the extra electron of high-VDE anions here indicates two features: remarkable aggregation on bridging CN units and non-negligible distribution on every CN unit. These two features lower the potential and kinetic energies of the extra electron respectively and thus lead to high VDE. Besides superhalogen properties, the structures, relative stabilities and thermodynamic stabilities with respect to detachment of CN-1 were also investigated for these anions. The collection of these results indicates that polynuclear structures based on pseudohalogen ligand are promising candidates for new superhalogens with enhanced properties.

Are polynuclear superhalogens without halogen atoms probable? A high-level ab initio case study on triple-bridged binuclear anions with cyanide ligands.

PubMed

Yin, Bing; Li, Teng; Li, Jin-Feng; Yu, Yang; Li, Jian-Li; Wen, Zhen-Yi; Jiang, Zhen-Yi

2014-03-07

The first theoretical exploration of superhalogen properties of polynuclear structures based on pseudohalogen ligand is reported here via a case study on eight triply-bridged [Mg2(CN)5](-) clusters. From our high-level ab initio results, all these clusters are superhalogens due to their high vertical electron detachment energies (VDE), of which the largest value is 8.67 eV at coupled-cluster single double triple (CCSD(T)) level. Although outer valence Green's function results are consistent with CCSD(T) in most cases, it overestimates the VDEs of three anions dramatically by more than 1 eV. Therefore, the combined usage of several theoretical methods is important for the accuracy of purely theoretical prediction of superhalogen properties of new structures. Spatial distribution of the extra electron of high-VDE anions here indicates two features: remarkable aggregation on bridging CN units and non-negligible distribution on every CN unit. These two features lower the potential and kinetic energies of the extra electron respectively and thus lead to high VDE. Besides superhalogen properties, the structures, relative stabilities and thermodynamic stabilities with respect to detachment of CN(-1) were also investigated for these anions. The collection of these results indicates that polynuclear structures based on pseudohalogen ligand are promising candidates for new superhalogens with enhanced properties.

Application of theoretical methods to increase succinate production in engineered strains.

PubMed

Valderrama-Gomez, M A; Kreitmayer, D; Wolf, S; Marin-Sanguino, A; Kremling, A

2017-04-01

Computational methods have enabled the discovery of non-intuitive strategies to enhance the production of a variety of target molecules. In the case of succinate production, reviews covering the topic have not yet analyzed the impact and future potential that such methods may have. In this work, we review the application of computational methods to the production of succinic acid. We found that while a total of 26 theoretical studies were published between 2002 and 2016, only 10 studies reported the successful experimental implementation of any kind of theoretical knowledge. None of the experimental studies reported an exact application of the computational predictions. However, the combination of computational analysis with complementary strategies, such as directed evolution and comparative genome analysis, serves as a proof of concept and demonstrates that successful metabolic engineering can be guided by rational computational methods.

Simulations of vortices in a star-shaped plate with an artificial pin

NASA Astrophysics Data System (ADS)

Miyoshi, Hiroki; Ito, Atsuki; Dang, Vu The; Thanh Huy, Ho; Hayashi, Masahiko; Kato, Masaru; Ishida, Takekazu

2017-07-01

Although a triangular vortex lattice is stable in a bulk type-II superconductor, exotic vortex configurations are expected to appear in a small superconducting plate. Theoretical calculations on vortex structures in a star-shaped superconducting plate have been given in our preceding work. In this work, we extended our theoretical studies to the case of having an artificial pin. We performed the Ginzburg-Landau (GL) calculations systematically to compare with the pin-free case by using the finite element method. We found that a vortex tends to accommodate preferentially in an aritificial pin in the star-shaped plate. We found a systematic evolution of vortex structure with increaseing magnetic field. We compare our theoretical calculations with vortices in a star-shaped Mo80Ge20 plate with an artificial pin and without an artificial pin obtained by a scanning SQUID microscope. We reconstructed the vortex image on the sample surface by using the inverse Biot-Savart law and the Fourier transformation.

Deformation of a liquid surface induced by an air jet

NASA Astrophysics Data System (ADS)

He, Andong; Belmonte, Andrew

2008-11-01

An experimental and theoretical study is performed to characterize the depression of a liquid surface due to an air jet exiting a nozzle from above. The Reynolds number of the jet is confined to a moderate range(˜100). In order to obtain more stable surface profiles, we use a viscous fluid (silicone oil) instead of water. Based on the data acquired from experiments, we find how the depth and diameter of the cavity are dependent on the radius and height of the nozzle, and the exit velocity of the jet. Theoretical explanations are provided both in the two dimensional (2-D) and three dimensional (3-D) cases. In the 2-D case, a free surface equation and the asymptotic expansion of its solution are obtained by employing a conformal mapping method. In the 3-D case where this technique fails, we propose a different model using an exact axisymmetric solution to Euler's equation.

Vertical distribution of microphysical properties in radiation fogs - A case study

NASA Astrophysics Data System (ADS)

Egli, S.; Maier, F.; Bendix, J.; Thies, B.

2015-01-01

The present study investigates the validity of a theoretical liquid water content (LWC) profile in fog layers currently used for satellite based ground fog detection, with a special focus on the temporal dynamics during fog life cycle. For this purpose, LWC profiles recorded during two different fog events by means of a tethered balloon borne measurement system are presented and discussed. The results indicate a good agreement in trend and gradient between measured and theoretical LWC profiles during the mature stage of the fog life cycle. The profile obtained during the dissipation stage shows less accordance with the theoretical profile. To improve the agreement between theoretical and measured LWC profiles, the evolutionary stages during the fog life cycle should be incorporated. However, the variability within the prenoted measurements points out that more LWC profiles during a great variety of different fog events have to be collected for a well-justified adaptation of the theoretical LWC profile, considering fog life cycle phases in the future. In general, this underlines the existing knowledge gap regarding the vertical distribution of microphysical properties in natural fogs.

[Theoretical and methodological uses of research in Social and Human Sciences in Health].

PubMed

Deslandes, Suely Ferreira; Iriart, Jorge Alberto Bernstein

2012-12-01

The current article aims to map and critically reflect on the current theoretical and methodological uses of research in the subfield of social and human sciences in health. A convenience sample was used to select three Brazilian public health journals. Based on a reading of 1,128 abstracts published from 2009 to 2010, 266 articles were selected that presented the empirical base of research stemming from social and human sciences in health. The sample was classified thematically as "theoretical/ methodological reference", "study type/ methodological design", "analytical categories", "data production techniques", and "analytical procedures". We analyze the sample's emic categories, drawing on the authors' literal statements. All the classifications and respective variables were tabulated in Excel. Most of the articles were self-described as qualitative and used more than one data production technique. There was a wide variety of theoretical references, in contrast with the almost total predominance of a single type of data analysis (content analysis). In several cases, important gaps were identified in expounding the study methodology and instrumental use of the qualitative research techniques and methods. However, the review did highlight some new objects of study and innovations in theoretical and methodological approaches.

Slow, steady discharge regime for concentrated lead-acid cells with planar, cylindrical, and spherical electrodes

NASA Astrophysics Data System (ADS)

Yang, Yigang; Saslow, Wayne M.

1998-12-01

A recent theoretical study of slow, steady discharge for a lead-acid cell carrying current I, with planar electrodes, predicts a nonzero bulk charge distribution with an associated voltage profile within the electrolyte that is quadratic in space. A second theoretical study finds that the Ohmic voltage resistance R=ΔV/I across the electrolyte differs from the Joule heating resistance RJ=P/I2. The very different diffusion constants of the charge-carrying ions H+ and HSO4- is responsible for the quadratic voltage profile. The presence of changing chemical energies is responsible for the different resistances. In the present work we study this same chemical system for the cylindrical and spherical geometries, with Pb at inner radius a and PbO2 at outer radius b. For the cylindrical case, the voltage varies with radius as the sum of a logarithm and a quadratic. For the spherical case, the voltage varies with the radius as a sum of an inverse r and a quadratic. For both cases, the quadratic is the signature of a uniform nonzero bulk charge distribution. For both cases, R≠RJ. For large enough b/a, in both the spherical and cylindrical cases, we find that R<0; current flows from lower to higher electrical potential. This does not violate energy conservation when chemical as well as electrical energies are included.

The 3R principle and the use of non-human primates in the study of neurodegenerative diseases: the case of Parkinson's disease.

PubMed

Vitale, Augusto; Manciocco, Arianna; Alleva, Enrico

2009-01-01

The aim of this paper is to offer an ethical perspective on the use of non-human primates in neurobiological studies, using the Parkinson's disease (PD) as an important case study. We refer, as theoretical framework, to the 3R principle, originally proposed by Russell and Burch [Russell, W.M.S., Burch, R.L., 1959. The Principles of Humane Experimental Technique. Universities Federation for Animal Welfare Wheathampstead, England (reprinted in 1992)]. Then, the use of non-human primates in the study of PD will be discussed in relation to the concepts of Replacement, Reduction, and Refinement. Replacement and Reduction result to be the more problematic concept to be applied, whereas Refinement offers relatively more opportunities of improvement. However, although in some cases the 3R principle shows its applicative limits, its value, as conceptual and inspirational tool remains extremely valuable. It suggests to the researchers a series of questions, both theoretical and methodological, which can have the results of improving the quality of life on the experimental models, the quality of the scientific data, and the public perception from the non-scientist community.

Creating restorative settings: inclusive design considerations

Treesearch

David Kamp

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

The re-greening of public housing

Treesearch

Rob Bennaton

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

Biophilia, health, and well-being

Treesearch

Judith Heerwagen

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

Learning from MOOCs: A Qualitative Case Study from the Learners' Perspectives

ERIC Educational Resources Information Center

Park, Yeonjeong; Jung, Insung; Reeves, Thomas C.

2015-01-01

This study describes the massive open online course (MOOC) experiences of three educational technology scholars assuming the roles of learners. Adapting Carroll's model of school learning as a theoretical framework, the study employed an autoethnography method to collect empirical data in three different MOOCs. Data analysis from regularly…

Ethylenediammonium dication: H-bonded complexes with terephthalate, chloroacetate, phosphite, selenite and sulfamate anions. Detailed vibrational spectroscopic and theoretical studies of ethylenediammonium terephthalate.

PubMed

Marchewka, M K; Drozd, M

2012-12-01

Crystalline complexes between ethylenediammonium dication and terephthalate, chloroacetate, phosphite, selenite and sulfamate anions were obtained by slow evaporation from water solution method. Room temperature powder infrared and Raman measurements were carried out. For ethylenediammonium terephthalate theoretical calculations of structure were performed by two ways: ab-initio HF and semiempirical PM3. In this case the PM3 method gave more accurate structure (closer to X-ray results). The additional PM3 calculations of vibrational spectra were performed. On the basis theoretical approach and earlier vibrational studies of similar compounds the vibrational assignments for observed bands have been proposed. All compounds were checked for second harmonic generation (SHG). Copyright © 2012 Elsevier B.V. All rights reserved.

Learning in Social Action: A Contribution to Understanding Informal Education. Global Perspectives on Adult Education and Training.

ERIC Educational Resources Information Center

Foley, Griff

This book argues the importance of the incidental learning that can occur when people become involved in voluntary organizations, social struggles, and political activity. Chapter 1 introduces the case studies of informal learning in social struggle used to develop the argument and outlines the theoretical framework within which the case studies…

The Multiple-Lemma Representation of Italian Compound Nouns: A Single Case Study of Deep Dyslexia

ERIC Educational Resources Information Center

Marelli, Marco; Aggujaro, Silvia; Molteni, Franco; Luzzatti, Claudio

2012-01-01

It is not clear how compound words are represented within the influential framework of the lemma-lexeme theory. Theoretically, compounds could be structured through a multiple lemma architecture, in which the lemma nodes of both the compound and its constituents are involved in lexical processing. If this were the case, syntactic properties of…

Ongoing data reduction, theoretical studies, and supporting research in magnetospheric physics

NASA Technical Reports Server (NTRS)

Scarf, F. L.; Greenstadt, E. W.

1982-01-01

The investigators published a very large number of space science research papers, and in almost all cases these papers involved correlative multi-spacecraft studies. A tabulation of these research papers is provided. Quarterly progress reports for the second contractual period are included.

Escaping the Tyranny of Belief

ERIC Educational Resources Information Center

Wiswell, Albert K.; Wells, C. Leanne

2004-01-01

This study describes an action research case study through which the dynamics of identifying and changing strongly held assumptions illustrate the differences between experiences that serve to strengthen beliefs from those that lead to learning. Theoretical considerations are presented linking cognitive schema, action science, attribution theory,…

Geomagnetic field models for satellite angular motion studies

NASA Astrophysics Data System (ADS)

Ovchinnikov, M. Yu.; Penkov, V. I.; Roldugin, D. S.; Pichuzhkina, A. V.

2018-03-01

Four geomagnetic field models are discussed: IGRF, inclined, direct and simplified dipoles. Geomagnetic induction vector expressions are provided in different reference frames. Induction vector behavior is compared for different models. Models applicability for the analysis of satellite motion is studied from theoretical and engineering perspectives. Relevant satellite dynamics analysis cases using analytical and numerical techniques are provided. These cases demonstrate the benefit of a certain model for a specific dynamics study. Recommendations for models usage are summarized in the end.

Solution and solid-state effects on NMR chemical shifts in sesquiterpene lactones: NMR, X-ray, and theoretical methods.

PubMed

Dračínský, Martin; Buděšínský, Miloš; Warżajtis, Beata; Rychlewska, Urszula

2012-01-12

Selected guaianolide type sesquiterpene lactones were studied combining solution and solid-state NMR spectroscopy with theoretical calculations of the chemical shifts in both environments and with the X-ray data. The experimental (1)H and (13)C chemical shifts in solution were successfully reproduced by theoretical calculations (with the GIAO method and DFT B3LYP 6-31++G**) after geometry optimization (DFT B3LYP 6-31 G**) in vacuum. The GIPAW method was used for calculations of solid-state (13)C chemical shifts. The studied cases involved two polymorphs of helenalin, two pseudopolymorphs of 6α-hydroxydihydro-aromaticin and two cases of multiple asymmetric units in crystals: one in which the symmetry-independent molecules were connected by a series of hydrogen bonds (geigerinin) and the other in which the symmetry-independent molecules, deprived of any specific intermolecular interactions, differed in the conformation of the side chain (badkhysin). Geometrically different molecules present in the crystal lattices could be easily distinguished in the solid-state NMR spectra. Moreover, the experimental differences in the (13)C chemical shifts corresponding to nuclei in different polymorphs or in geometrically different molecules were nicely reproduced with the GIPAW calculations.

A Unifying Framework for Causal Analysis in Set-Theoretic Multimethod Research

ERIC Educational Resources Information Center

Rohlfing, Ingo; Schneider, Carsten Q.

2018-01-01

The combination of Qualitative Comparative Analysis (QCA) with process tracing, which we call set-theoretic multimethod research (MMR), is steadily becoming more popular in empirical research. Despite the fact that both methods have an elected affinity based on set theory, it is not obvious how a within-case method operating in a single case and a…

Facilitating progress in health behaviour theory development and modification: the reasoned action approach as a case study.

PubMed

Head, Katharine J; Noar, Seth M

2014-01-01

This paper explores the question: what are barriers to health behaviour theory development and modification, and what potential solutions can be proposed? Using the reasoned action approach (RAA) as a case study, four areas of theory development were examined: (1) the theoretical domain of a theory; (2) tension between generalisability and utility, (3) criteria for adding/removing variables in a theory, and (4) organisational tracking of theoretical developments and formal changes to theory. Based on a discussion of these four issues, recommendations for theory development are presented, including: (1) the theoretical domain for theories such as RAA should be clarified; (2) when there is tension between generalisability and utility, utility should be given preference given the applied nature of the health behaviour field; (3) variables should be formally removed/amended/added to a theory based on their performance across multiple studies and (4) organisations and researchers with a stake in particular health areas may be best suited for tracking the literature on behaviour-specific theories and making refinements to theory, based on a consensus approach. Overall, enhancing research in this area can provide important insights for more accurately understanding health behaviours and thus producing work that leads to more effective health behaviour change interventions.

Interaction of non-radially symmetric camphor particles

NASA Astrophysics Data System (ADS)

Ei, Shin-Ichiro; Kitahata, Hiroyuki; Koyano, Yuki; Nagayama, Masaharu

2018-03-01

In this study, the interaction between two non-radially symmetric camphor particles is theoretically investigated and the equation describing the motion is derived as an ordinary differential system for the locations and the rotations. In particular, slightly modified non-radially symmetric cases from radial symmetry are extensively investigated and explicit motions are obtained. For example, it is theoretically shown that elliptically deformed camphor particles interact so as to be parallel with major axes. Such predicted motions are also checked by real experiments and numerical simulations.

Clinical Case Studies in Psychoanalytic and Psychodynamic Treatment

PubMed Central

Willemsen, Jochem; Della Rosa, Elena; Kegerreis, Sue

2017-01-01

This manuscript provides a review of the clinical case study within the field of psychoanalytic and psychodynamic treatment. The method has been contested for methodological reasons and because it would contribute to theoretical pluralism in the field. We summarize how the case study method is being applied in different schools of psychoanalysis, and we clarify the unique strengths of this method and areas for improvement. Finally, based on the literature and on our own experience with case study research, we come to formulate nine guidelines for future case study authors: (1) basic information to include, (2) clarification of the motivation to select a particular patient, (3) information about informed consent and disguise, (4) patient background and context of referral or self-referral, (5) patient's narrative, therapist's observations and interpretations, (6) interpretative heuristics, (7) reflexivity and counter-transference, (8) leaving room for interpretation, and (9) answering the research question, and comparison with other cases. PMID:28210235

Urban gardens: catalysts for restorative commons infrastructure

Treesearch

John Seitz

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

Environmental and community health: a reciprocal relationship

Treesearch

Jeffery Sugarman

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

Problemes theoriques et methodologiques dans l'etude des langues/dialectes en contact aux niveaux macrologique et micrologique = Theoretical and Methodological Issues in the Study of Languages/Dialects in Contact at Macro- and Micro-Logical Levels of Analysis. Proceedings of the International Conference DALE (University of London)/ICRB (Laval University, Quebec)/ICSBT (Vrije Universiteit te Brussel) (London, England, May 23-26, 1985).

ERIC Educational Resources Information Center

Blanc, Michel, Ed.; Hamers, Josiane F., Ed.

Papers from an international conference on the interaction of languages and dialects in contact are presented in this volume. Papers include: "Quelques reflexions sur la variation linguistique"; "The Investigation of 'Language Continuum' and 'Diglossia': A Macrological Case Study and Theoretical Model"; "A Survey of…

A graph-theoretic method to quantify the airline route authority

NASA Technical Reports Server (NTRS)

Chan, Y.

1979-01-01

The paper introduces a graph-theoretic method to quantify the legal statements in route certificate which specifies the airline routing restrictions. All the authorized nonstop and multistop routes, including the shortest time routes, can be obtained, and the method suggests profitable route structure alternatives to airline analysts. This method to quantify the C.A.B. route authority was programmed in a software package, Route Improvement Synthesis and Evaluation, and demonstrated in a case study with a commercial airline. The study showed the utility of this technique in suggesting route alternatives and the possibility of improvements in the U.S. route system.

The highs and lows of theoretical interpretation in animal-metacognition research

PubMed Central

Smith, J. David; Couchman, Justin J.; Beran, Michael J.

2012-01-01

Humans feel uncertain. They know when they do not know. These feelings and the responses to them ground the research literature on metacognition. It is a natural question whether animals share this cognitive capacity, and thus animal metacognition has become an influential research area within comparative psychology. Researchers have explored this question by testing many species using perception and memory paradigms. There is an emerging consensus that animals share functional parallels with humans’ conscious metacognition. Of course, this research area poses difficult issues of scientific inference. How firmly should we hold the line in insisting that animals’ performances are low-level and associative? How high should we set the bar for concluding that animals share metacognitive capacities with humans? This area offers a constructive case study for considering theoretical problems that often confront comparative psychologists. The authors present this case study and address diverse issues of scientific judgement and interpretation within comparative psychology. PMID:22492748

Tensions in Distributed Leadership

ERIC Educational Resources Information Center

Ho, Jeanne; Ng, David

2017-01-01

Purpose: This article proposes the utility of using activity theory as an analytical lens to examine the theoretical construct of distributed leadership, specifically to illuminate tensions encountered by leaders and how they resolved these tensions. Research Method: The study adopted the naturalistic inquiry approach of a case study of an…

Secondary Special Education Teachers and Transition Specialists: Collaborative Efforts

ERIC Educational Resources Information Center

Jacobs, Jodee Elizabeth

2017-01-01

This qualitative case study explored how secondary special education teachers and transition specialists perceived their collaborative efforts when transitioning students with Autism Spectrum Disorder (ASD) from secondary to higher education. The theory of transition established the platform for this study. Two of the theoretical principles of…

Characteristics of Interactive Learning Environments in Business Management Courses.

ERIC Educational Resources Information Center

Nicastro, Mary L.

This study sought to develop theoretical propositions for the institutional, course, instructor, and student characteristics of the learning environment where interactive learning techniques are used in college-level business courses. Using an interpretive case study method with examination of documents, observations of instructors and students,…

Parental "Intrapreneurship" in Action: Theoretical Elaboration through the Israeli Case Study

ERIC Educational Resources Information Center

Yemini, Miri; Ramot, Rony; Sagie, Netta

2016-01-01

Parents are widely acknowledged as prominent actors in schools' success; consequently, school-parent interactions are heavily investigated from sociological, psychological, political, and cultural perspectives. By applying the "open system" perspective to schools as an eco-system, this study addresses parents as integrative stakeholders…

Rethinking Case Study Methodology in Poststructural Research.

PubMed

Mohammed, Shan; Peter, Elizabeth; Gastaldo, Denise; Howell, Doris

2015-03-01

Little consideration has been given to how case study might be used in poststructural research to explore power relations that constitute a phenomenon. Many case study scholars, most notably Robert Yin, adopt a postpositivist perspective that assumes the "truth" can be accessed through applying prescriptive and rigid research techniques. Using a discussion of Michel Foucault's key theoretical ideas and the insights gained through a Foucauldian case study of people with advanced cancer who continue to receive curative treatment, the authors argue for the expansion of case study in poststructural inquiry. They propose that the use of poststructuralist case study is valuable because of the flexibility and comprehensiveness of the methodology, which allows for the exploration of a deeper understanding of the broader discourses that shape a phenomenon, as well as how power/knowledge relations shape the behaviours and perceptions of people. They also introduce the reflexive implications of poststructural case study research. Copyright© by Ingram School of Nursing, McGill University.

Combined Theoretical and Experimental Study of Refractive Indices of Water-Acetonitrile-Salt Systems.

PubMed

An, Ni; Zhuang, Bilin; Li, Minglun; Lu, Yuyuan; Wang, Zhen-Gang

2015-08-20

We propose a simple theoretical formula for describing the refractive indices in binary liquid mixtures containing salt ions. Our theory is based on the Clausius-Mossotti equation; it gives the refractive index of the mixture in terms of the refractive indices of the pure liquids and the polarizability of the ionic species, by properly accounting for the volume change upon mixing. The theoretical predictions are tested by extensive experimental measurements of the refractive indices for water-acetonitrile-salt systems for several liquid compositions, different salt species, and a range of salt concentrations. Excellent agreement is obtained in all cases, especially at low salt concentrations, with no fitting parameters. A simplified expression of the refractive index for low salt concentration is also given, which can be the theoretical basis for determination of salt concentration using refractive index measurements.

Exploring the relation between online case-based discussions and learning outcomes in dental education.

PubMed

Koole, Sebastiaan; Vervaeke, Stijn; Cosyn, Jan; De Bruyn, Hugo

2014-11-01

Online case-based discussions, parallel to theoretical dental education, have been highly valued by students and supervisors. This study investigated the relation between variables of online group discussions and learning outcomes. At Ghent University in Belgium, undergraduate dental students (years two and three) are required to participate in online case-based discussion groups (five students/group) in conjunction with two theoretical courses on basic periodontics and related therapy. Each week, a patient case is discussed under supervision of a periodontist, who authored the case and performed the treatment. Each case includes treatment history and demand, intra- and extraoral images, and full diagnostic information with periodontal and radiographic status. For this retrospective study, data were obtained for all 252 students in forty-three discussion groups between 2009 and 2012. Spearman's rank correlations were calculated to investigate the relation among group dynamics (number of group posts and views), individual student contributions (number of individual posts, newly introduced elements, questions, and reactions to other posts), supervisors' interventions (number of posts and posed questions), and learning outcomes (examination result). The results showed that learning outcomes were significantly related to the number of student posts (Spearman's rho (ρ)=0.19), newly introduced elements (ρ=0.21), reactions to other posts (ρ=0.14), number of supervisors' interventions (ρ=0.12), and supervisors' questions (ρ=0.20). These results suggest that individual student contributions during online case-based discussions and the provided supervision were related to learning outcomes.

Refinement of a Conceptual Model for Adolescent Readiness to Engage in End-of-Life Discussions.

PubMed

Bell, Cynthia J; Zimet, Gregory D; Hinds, Pamela S; Broome, Marion E; McDaniel, Anna M; Mays, Rose M; Champion, Victoria L

Adolescents living with incurable cancer require ongoing support to process grief, emotions, and information as disease progresses including treatment options (phase 1 clinical trials and/or hospice/palliative care). Little is known about how adolescents become ready for such discussions. The purpose of this study was to explore the process of adolescent readiness for end-of-life preparedness discussions, generating a theoretical understanding for guiding clinical conversations when curative options are limited. We explored 2 in-depth cases across time using case-study methodology. An à priori conceptual model based on current end-of-life research guided data collection and analysis. Multiple sources including in-depth adolescent interviews generated data collection on model constructs. Analysis followed a logical sequence establishing a chain of evidence linking raw data to study conclusions. Synthesis and data triangulation across cases and time led to theoretical generalizations. Initially, we proposed a linear process of readiness with 3 domains: a cognitive domain (awareness), an emotional domain (acceptance), and a behavioral domain (willingness), which preceded preparedness. Findings led to conceptual model refinement showing readiness is a dynamic internal process that interacts with preparedness. Current awareness context facilitates the type of preparedness discussions (cognitive or emotional). Furthermore, social constraint inhibits discussions. Data support theoretical understanding of the dynamism of readiness. Future research that validates adolescent conceptualization will ensure age-appropriate readiness representation. Understanding the dynamic process of readiness for engaging in end-of-life preparedness provides clinician insight for guiding discussions that facilitate shared decision making and promote quality of life for adolescents and their families.

Collaboration within the Context of the Healthy School Approach (HSA): The Case of a Disadvantaged Elementary School in Quebec

ERIC Educational Resources Information Center

Rivard, Marie-Claude; Deslandes, Rollande; Beaudoin, Charlotte

2011-01-01

This case study focuses on the groundwork aiming at developing school-family-community collaboration in the deployment of the HSA in a low socio-economic status elementary school. Two theoretical models--the HSA and Hoover-Dempsey et al. (1997, 2010) models--guided the analysis of five discussion groups (N = 31) regarding their perceptions of the…

Identifying Complex Cultural Interactions in the Instructional Design Process: A Case Study of a Cross-Border, Cross-Sector Training for Innovation Program

ERIC Educational Resources Information Center

Russell, L. Roxanne; Kinuthia, Wanjira L.; Lokey-Vega, Anissa; Tsang-Kosma, Winnie; Madathany, Reeny

2013-01-01

The purpose of this research is to identify complex cultural dynamics in the instructional design process of a cross-sector, cross-border training environment by applying Young's (2009) Culture-Based Model (CBM) as a theoretical framework and taxonomy for description of the instructional design process under the conditions of one case. This…

Computational assessment of hemodynamics-based diagnostic tools using a database of virtual subjects: Application to three case studies.

PubMed

Willemet, Marie; Vennin, Samuel; Alastruey, Jordi

2016-12-08

Many physiological indexes and algorithms based on pulse wave analysis have been suggested in order to better assess cardiovascular function. Because these tools are often computed from in-vivo hemodynamic measurements, their validation is time-consuming, challenging, and biased by measurement errors. Recently, a new methodology has been suggested to assess theoretically these computed tools: a database of virtual subjects generated using numerical 1D-0D modeling of arterial hemodynamics. The generated set of simulations encloses a wide selection of healthy cases that could be encountered in a clinical study. We applied this new methodology to three different case studies that demonstrate the potential of our new tool, and illustrated each of them with a clinically relevant example: (i) we assessed the accuracy of indexes estimating pulse wave velocity; (ii) we validated and refined an algorithm that computes central blood pressure; and (iii) we investigated theoretical mechanisms behind the augmentation index. Our database of virtual subjects is a new tool to assist the clinician: it provides insight into the physical mechanisms underlying the correlations observed in clinical practice. Copyright © 2016 The Authors. Published by Elsevier Ltd.. All rights reserved.

Case-Study of the High School Student's Family Values Formation

ERIC Educational Resources Information Center

Valeeva, Roza A.; Korolyeva, Natalya E.; Sakhapova, Farida Kh.

2016-01-01

The aim of the research is the theoretical justification and experimental verification of content, complex forms and methods to ensure effective development of the high school students' family values formation. 93 lyceum students from Kazan took part in the experiment. To study students' family values we have applied method of studying personality…

The Community College IR Shop and Accreditation: A Case Study

ERIC Educational Resources Information Center

Johnston, George

2011-01-01

This article presents results of a study the author recently conducted on the role of traditional institutional research (IR) offices in support of accreditation activities and institutional effectiveness. The purpose of the study was to confirm or disconfirm the utility of a theoretical model developed by Brittingham, O'Brien, and Alig (2008) of…

Team Learning: Collective Reflection Processes in Teacher Teams

ERIC Educational Resources Information Center

Ohlsson, Jon

2013-01-01

Purpose: The purpose of this paper is to contribute to further studies of theoretical and conceptual understanding of teachers' team learning processes, with a main focus on team work, team atmosphere, and collective reflections. Design/methodology/approach: The empirical study was designed as a multi-case study in a research and development…

Challenges to the Doctoral Journey: A Case of Female Doctoral Students from Ethiopia

ERIC Educational Resources Information Center

Bireda, Asamenew Demessie

2015-01-01

This study aimed to investigate some challenges female doctoral students experience in their doctoral journey. The study used a qualitative design and structured interviews. The theoretical framework that guided the study was that of Urie Bronfenbrenner's ecosystemic theory. A purposely selected sample of five female doctoral students from the…

Study Abroad: The Reality of Building Dynamic Group Learning.

ERIC Educational Resources Information Center

Ransbury, Molly K.; Harris, Sandra A.

1994-01-01

The collaborative effort of a professor of human development with expertise in group process and a general education professor with expertise in Greek mythology and culture uses a case study format to apply theoretical models of group dynamics to the travel and learning experience of study abroad. Implications for course design and group process…

Using Generic Inductive Approach in Qualitative Educational Research: A Case Study Analysis

ERIC Educational Resources Information Center

Liu, Lisha

2016-01-01

Qualitative research strategy has been widely adopted by educational researchers in order to improve the quality of their empirical studies. This paper aims to introduce a generic inductive approach, pragmatic and flexible in qualitative theoretical support, by describing its application in a study of non-English major undergraduates' English…

Developing Student Leaders in Campus Outdoor Recreation Programs: An Appreciative Inquiry

ERIC Educational Resources Information Center

Sandberg, Dan; Martin, Bruce; Szolosi, Andrew; Early, Sherry; Casapulla, Sharon

2017-01-01

Campus outdoor recreation programs can play an integral role in developing student leaders. In this study, we sought a better understanding of the shared positive elements exemplary outdoor programs are using to develop their student leaders. The study was designed using a collective case study methodology and the theoretical lens of the…

The population ecology of infectious diseases: pertussis in Thailand as a case study.

PubMed

Blackwood, J C; Cummings, D A T; Broutin, H; Iamsirithaworn, S; Rohani, P

2012-12-01

Many of the fundamental concepts in studying infectious diseases are rooted in population ecology. We describe the importance of population ecology in exploring central issues in infectious disease research including identifying the drivers and dynamics of host-pathogen interactions and pathogen persistence, and evaluating the success of public health policies. The use of ecological concepts in infectious disease research is demonstrated with simple theoretical examples in addition to an analysis of case notification data of pertussis, a childhood respiratory disease, in Thailand as a case study. We stress that further integration of these fields will have significant impacts in infectious diseases research.

Adapting the botanical garden into a sustainable, multicultural resource

Treesearch

Susan Lacerte

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

Executive Coaching Practices in the Adult Workplace

ERIC Educational Resources Information Center

Campone, Francine

2015-01-01

This chapter provides an overview of key principles and practices in executive coaching. Coaching is discussed as a reflective learning opportunity and offers the theoretical grounding, strategies, and case studies for each of four key elements of a coaching engagement.

Youth empowerment through urban agriculture: Red Hook Community Farm

Treesearch

Ian Marvy

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

Integrating Cross-Case Analyses and Process Tracing in Set-Theoretic Research: Strategies and Parameters of Debate

ERIC Educational Resources Information Center

Beach, Derek; Rohlfing, Ingo

2018-01-01

In recent years, there has been increasing interest in the combination of two methods on the basis of set theory. In our introduction and this special issue, we focus on two variants of cross-case set-theoretic methods--"qualitative comparative analysis" (QCA) and typological theory (TT)--and their combination with process tracing (PT).…

Culturally Responsive Pedagogy for Teachers of Color

ERIC Educational Resources Information Center

Gist, Conra D.

2017-01-01

This study utilizes the conceptual framework of culturally responsive pedagogy and theoretical suppositions about the culturally responsive teacher educator to examine the learning experiences of teacher candidates of color. Findings from the case study of a teacher educator's and teacher candidates' of color teaching and learning experiences in a…

Developing Instructional Leaders through Assistant Principals' Academy: A Partnership for Success

ERIC Educational Resources Information Center

Gurley, D. Keith; Anast-May, Linda; Lee, H. T.

2015-01-01

This article describes findings from a single-case qualitative study of a unique 2-year professional development academy for practicing assistant principals designed and implemented in partnership between school district personnel and university educational leadership faculty members. The study was conducted based on the theoretical framework of…

Bringing Headteachers' Voices to the Professional Development Debate: A Case Study from Spain

ERIC Educational Resources Information Center

Hernández, María J.; Martínez, María A.

2016-01-01

This study seeks to broaden the existing knowledge about education and professional development in educational leadership by analysing the characteristics of "good" training programmes according to international theoretical frameworks and to educational leaders' views. To do so, 100 headteachers of infant, primary and secondary schools…

Epistemic Agency in an Environmental Sciences Watershed Investigation Fostered by Digital Photography

ERIC Educational Resources Information Center

Zimmerman, Heather Toomey; Weible, Jennifer L.

2018-01-01

This collective case study investigates the role of digital photography to support high school students' engagement in science inquiry practices during a three-week environmental sciences unit. The study's theoretical framework brings together research from digital photography, participation in environmental science practices, and epistemic…

Mind the Gap: Organizational Learning and Improvement in an Underperforming Urban System

ERIC Educational Resources Information Center

Finnigan, Kara S.; Daly, Alan J.

2012-01-01

Drawing on the theoretical lens of organizational learning, and utilizing the methodological approaches of social network and case-study analyses, our exploratory study examines whether schools under sanction exhibit the necessary processes, relationships, and social climates that support organizational learning and improvement. We also…

Collaboration to Teach English Language Learners: Opportunities for Shared Teacher Learning

ERIC Educational Resources Information Center

Martin-Beltran, Melinda; Peercy, Megan Madigan

2014-01-01

This study examines collaboration between English for Speakers of Other Languages (ESOL) teachers and content-area elementary school teachers, and makes the case for conceptualising teacher collaboration as an opportunity for shared teacher learning. Using a sociocultural theoretical lens, this study examines how three pairs of elementary teachers…

What Role Do Race, Ethnicity, Language and Gender Play in the Teaching Profession?

ERIC Educational Resources Information Center

Nguyen, Huong Tran

2012-01-01

"Critical race theory" and "standard language ideology" are employed as theoretical and analytical frames for conceptualizing and understanding the entry perspectives and experiences of some Vietnamese American pre-service teachers in US schools. Study findings from a qualitative case study approach suggest that race,…

Applying Queer Theory in Practice with College Students

ERIC Educational Resources Information Center

Abes, Elisa S.

2008-01-01

Grounded in a narrative inquiry study of traditional-aged lesbian college students' perceptions of the relationships among their multiple social identities, this article explores implications of queer theory in practice with college students. This case study examines the emancipatory impact of queer notions and a queer theoretical framework on one…

Learning through Music Festivals

ERIC Educational Resources Information Center

Karlsen, Sidsel

2009-01-01

This article explores one particular music festival, the Festspel i Pite Alvdal, as a source of musical learning. It is grounded in the empirical data of a case study that was gathered through observation, a survey, in-depth interviews, documentation and archival records. The theoretical framework was taken from modernity theory, and the study's…

Student-Initiated Use of Facebook for Learning Online Journalism

ERIC Educational Resources Information Center

Song, Yang

2017-01-01

This article presents a case study of student-initiated use of Facebook Groups in doing a team project for an online journalism course. Drawing upon the concept of affinity space and a theoretical taxonomy of asynchronous online discussion, the present study triangulates classroom observation, semi-structured student interviews, and microanalysis…

Two Concepts of Radiation: A Case Study Investigating Existing Preconceptions

ERIC Educational Resources Information Center

Plotz, Thomas; Hopf, Martin

2016-01-01

Conceptual Change is a widely accepted theoretical framework for science education. Setting up successful learning and teaching arrangements in this framework necessarily entails including students´ preconceptions into the construction of those arrangements. In order to provide a basis for such arrangements this study investigated and explored…

Case Study of Instructional Innovation among Elementary Teachers

ERIC Educational Resources Information Center

McCracklin, Patricia

2012-01-01

In one mid-western elementary school, teachers received training designed to change their teaching methods in their classrooms. Research has shown teachers have difficulty changing teaching behaviors. The research questions addressed teachers' beliefs and understandings of teaching in a new way. The theoretical framework for this study is…

A Disability Studies Framework for Policy Activism in Postsecondary Education

ERIC Educational Resources Information Center

Gabel, Susan L.

2010-01-01

This article uses disability studies and the social model of disability as theoretical foundations for policy activism in postsecondary education. The social model is discussed and a model for policy activism is described. A case study of how disability studies and policy activism can be applied is provided utilizing the "3C Project to Provide…

"Many Moons": Understanding Teacher Learning from a Teacher Education Perspective. Issue Paper 88-5.

ERIC Educational Resources Information Center

McDiarmid, G. Williamson; Ball, Deborah Loewenberg

The Teacher Education and Learning to Teach Study of the National Center for Research on Teacher Education combines case studies of teacher education programs with longitudinal studies of teacher learning. In this paper, the development of the theoretical framework on which instrumentation for the longitudinal study is based is discussed.…

Convolved substructure: analytically decorrelating jet substructure observables

NASA Astrophysics Data System (ADS)

Moult, Ian; Nachman, Benjamin; Neill, Duff

2018-05-01

A number of recent applications of jet substructure, in particular searches for light new particles, require substructure observables that are decorrelated with the jet mass. In this paper we introduce the Convolved SubStructure (CSS) approach, which uses a theoretical understanding of the observable to decorrelate the complete shape of its distribution. This decorrelation is performed by convolution with a shape function whose parameters and mass dependence are derived analytically. We consider in detail the case of the D 2 observable and perform an illustrative case study using a search for a light hadronically decaying Z'. We find that the CSS approach completely decorrelates the D 2 observable over a wide range of masses. Our approach highlights the importance of improving the theoretical understanding of jet substructure observables to exploit increasingly subtle features for performance.

Case-based learning facilitates critical thinking in undergraduate nutrition education: students describe the big picture.

PubMed

Harman, Tara; Bertrand, Brenda; Greer, Annette; Pettus, Arianna; Jennings, Jill; Wall-Bassett, Elizabeth; Babatunde, Oyinlola Toyin

2015-03-01

The vision of dietetics professions is based on interdependent education, credentialing, and practice. Case-based learning is a method of problem-based learning that is designed to heighten higher-order thinking. Case-based learning can assist students to connect education and specialized practice while developing professional skills for entry-level practice in nutrition and dietetics. This study examined student perspectives of their learning after immersion into case-based learning in nutrition courses. The theoretical frameworks of phenomenology and Bloom's Taxonomy of Educational Objectives triangulated the design of this qualitative study. Data were drawn from 426 written responses and three focus group discussions among 85 students from three upper-level undergraduate nutrition courses. Coding served to deconstruct the essence of respondent meaning given to case-based learning as a learning method. The analysis of the coding was the constructive stage that led to configuration of themes and theoretical practice pathways about student learning. Four leading themes emerged. Story or Scenario represents the ways that students described case-based learning, changes in student thought processes to accommodate case-based learning are illustrated in Method of Learning, higher cognitive learning that was achieved from case-based learning is represented in Problem Solving, and Future Practice details how students explained perceived professional competency gains from case-based learning. The skills that students acquired are consistent with those identified as essential to professional practice. In addition, the common concept of Big Picture was iterated throughout the themes and demonstrated that case-based learning prepares students for multifaceted problems that they are likely to encounter in professional practice. Copyright © 2015 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.

Quantitative analysis of multiple biokinetic models using a dynamic water phantom: A feasibility study

PubMed Central

Chiang, Fu-Tsai; Li, Pei-Jung; Chung, Shih-Ping; Pan, Lung-Fa; Pan, Lung-Kwang

2016-01-01

ABSTRACT This study analyzed multiple biokinetic models using a dynamic water phantom. The phantom was custom-made with acrylic materials to model metabolic mechanisms in the human body. It had 4 spherical chambers of different sizes, connected by 8 ditches to form a complex and adjustable water loop. One infusion and drain pole connected the chambers to an auxiliary silicon-based hose, respectively. The radio-active compound solution (TC-99m-MDP labeled) formed a sealed and static water loop inside the phantom. As clean feed water was infused to replace the original solution, the system mimicked metabolic mechanisms for data acquisition. Five cases with different water loop settings were tested and analyzed, with case settings changed by controlling valve poles located in the ditches. The phantom could also be changed from model A to model B by transferring its vertical configuration. The phantom was surveyed with a clinical gamma camera to determine the time-dependent intensity of every chamber. The recorded counts per pixel in each chamber were analyzed and normalized to compare with theoretical estimations from the MATLAB program. Every preset case was represented by uniquely defined, time-dependent, simultaneous differential equations, and a corresponding MATLAB program optimized the solutions by comparing theoretical calculations and practical measurements. A dimensionless agreement (AT) index was recommended to evaluate the comparison in each case. ATs varied from 5.6 to 48.7 over the 5 cases, indicating that this work presented an acceptable feasibility study. PMID:27286096

Simultaneous spreading and evaporation: recent developments.

PubMed

Semenov, Sergey; Trybala, Anna; Rubio, Ramon G; Kovalchuk, Nina; Starov, Victor; Velarde, Manuel G

2014-04-01

The recent progress in theoretical and experimental studies of simultaneous spreading and evaporation of liquid droplets on solid substrates is discussed for pure liquids including nanodroplets, nanosuspensions of inorganic particles (nanofluids) and surfactant solutions. Evaporation of both complete wetting and partial wetting liquids into a nonsaturated vapour atmosphere are considered. However, the main attention is paid to the case of partial wetting when the hysteresis of static contact angle takes place. In the case of complete wetting the spreading/evaporation process proceeds in two stages. A theory was suggested for this case and a good agreement with available experimental data was achieved. In the case of partial wetting the spreading/evaporation of a sessile droplet of pure liquid goes through four subsequent stages: (i) the initial stage, spreading, is relatively short (1-2 min) and therefore evaporation can be neglected during this stage; during the initial stage the contact angle reaches the value of advancing contact angle and the radius of the droplet base reaches its maximum value, (ii) the first stage of evaporation is characterised by the constant value of the radius of the droplet base; the value of the contact angle during the first stage decreases from static advancing to static receding contact angle; (iii) during the second stage of evaporation the contact angle remains constant and equal to its receding value, while the radius of the droplet base decreases; and (iv) at the third stage of evaporation both the contact angle and the radius of the droplet base decrease until the drop completely disappears. It has been shown theoretically and confirmed experimentally that during the first and second stages of evaporation the volume of droplet to power 2/3 decreases linearly with time. The universal dependence of the contact angle during the first stage and of the radius of the droplet base during the second stage on the reduced time has been derived theoretically and confirmed experimentally. The theory developed for pure liquids is applicable also to nanofluids, where a good agreement with the available experimental data has been found. However, in the case of evaporation of surfactant solutions the process deviates from the theoretical predictions for pure liquids at concentration below critical wetting concentration and is in agreement with the theoretical predictions at concentrations above it. Crown Copyright © 2013. All rights reserved.

Restoring lives, transforming landscapes: the greenhouse program at Rikers Island jail

Treesearch

James Jiler

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

Re-naturing the city: a role for sustainable infrastructure and buildings

Treesearch

Hillary Brown

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

A note on the effects of replenishment of depleted cells on HIV infection dynamics: A graph-theoretic approach

NASA Astrophysics Data System (ADS)

Mukwembi, Simon

2008-02-01

We study the effects of the rate of replacement of dead cells by either healthy cells or by infected cells on HIV infection dynamics through a graph-theoretic approach. Our framework takes into account a reasonable amount of the immune action to any pathogen and the local cell interactions that occur in the lymph nodes. Our results, in an extremal case where dead cells are highly likely to be replaced by healthy cells, show that all cells become healthy in a finite number of steps of given order and infection stops propagating. Further, for this extremal case, we give an algebraic formula for the number of infected cells at any given time in the HIV progression. We also find a sufficient condition, determined by dead cell replacement rate, which guarantees that an infected patient is continually positive, and give bounds on the number of infected, healthy and dead cells at any given time. We apply our theoretical results to a recently proposed model of the HIV infection dynamics.

Theoretical modeling and experimental analysis of solar still integrated with evacuated tubes

NASA Astrophysics Data System (ADS)

Panchal, Hitesh; Awasthi, Anuradha

2017-06-01

In this present research work, theoretical modeling of single slope, single basin solar still integrated with evacuated tubes has been performed based on energy balance equations. Major variables like water temperature, inner glass cover temperature and distillate output has been computed based on theoretical modeling. The experimental setup has been made from locally available materials and installed at Gujarat Power Engineering and Research Institute, Mehsana, Gujarat, India (23.5880°N, 72.3693°E) with 0.04 m depth during 6 months of time interval. From the series of experiments, it is found considerable increment in average distillate output of a solar still when integrated with evacuated tubes not only during daytime but also from night time. In all experimental cases, the correlation of coefficient (r) and root mean square percentage deviation of theoretical modeling and experimental study found good agreement with 0.97 < r < 0.98 and 10.22 < e < 38.4% respectively.

Experimental and Theoretical Studies of Axisymmetric Free Jets

NASA Technical Reports Server (NTRS)

Love, Eugene S.; Grigsby, Carl E.; Lee, Louise P.; Woodling, Mildred J.

1959-01-01

Some experimental and theoretical studies have been made of axisymmetric free jets exhausting from sonic and supersonic nozzles into still air and into supersonic streams with a view toward problems associated with propulsive jets and the investigation of these problems. For jets exhausting into still air, consideration is given to the effects of jet Mach number, nozzle divergence angle, and jet static pressure ratio upon jet structure, jet wavelength, and the shape and curvature of the jet boundary. Studies of the effects of the ratio of specific heats of the jets are included are observations pertaining to jet noise and jet simulation. For jets exhausting into supersonic streams, an attempt has been made to present primarily theoretical certain jet interference effects and in formulating experimental studies. The primary variables considered are jet Mach number, free stream Mach number, jet static pressure ratio, ratio of specific heats of the jet, nozzle exit angle, and boattail angle. The simulation problem and the case of a hypothetical hypersonic vehicle are examined, A few experimental observations are included.

The Politics of Place: Official, Intermediate and Community Discourses in Depopulated Rural Areas of Central Spain. The Case of the Riaza River Valley (Segovia, Spain)

ERIC Educational Resources Information Center

Paniagua, Angel

2009-01-01

This paper provides theoretical and methodological arguments to study the politics of space in small marginal and depopulated areas of Spain. The case for research is the Riaza river valley in the province of Segovia. Usually the analysis of rural space (and the geographical space in general) provides opposing presentations: vertical, between…

Etude theorique et experimentale de la correlation entre la resistance aux chocs thermiques et aux chocs mecaniques des materiaux refractaires utilises dans les fours de traitement de l'aluminium

NASA Astrophysics Data System (ADS)

Sebbani, Mohamed Jamal Eddine

2001-07-01

This work is a theoretical and experimental study of the correlation between the resistance to thermal shock and mechanical shock of refractory materials. The study of thermal shock showed that the Bahr and Hasselman approaches are alike and that they can be combined into a single, more general approach. This generalisation allowed the division of the theoretical models into two groups: the Hasselman model and the Harmuth model. However, neither of these approaches can predict the behaviour of all refractory materials submitted to thermal shock. Therefore, the generalisation of the Hasselman approach is more appropriate for more dense materials while the Hartmuth approach is more appropriate for less dense materials. The influence of porosity on the energy of rupture helped to explain the behaviour of the less dense material. The absence of generalisation in this case allows those parameters that could be correlated with thermal shock resistance to be dependent on the type of refractory. The study of mechanical shock provided a better understanding of this mechanism. The work performed showed, theoretically and experimentally, that the resistance of the refractory materials could be correlated with the parameter s20 Egwof n-22 . This new parameter helped to explain the statistical correlation between the resistance to mechanical impact and the soxRst parameter established in earlier work. The sintering influence, which makes the refractories more resistant to this type of demand, notably by reducing the "n" coefficient, was shown. This part of the study allowed the establishment of equivalence between thermal fatigue and fatigue by mechanical impact. An evaluation of the correlation between the two mechanisms demonstrated, theoretically and experimentally, that the mechanical and thermal demands could only be exceptionally correlated. In the case of thermal shock, which are imposed deformation demands, it is the shorter cracks which are the most dangerous. However, in the case of mechanical shock, which is constraint imposed, it is the longer cracks that are the most harmful. (Abstract shortened by UMI.)

Learning outcomes of "The Oncology Patient" study among nursing students: A comparison of teaching strategies.

PubMed

Roca, Judith; Reguant, Mercedes; Canet, Olga

2016-11-01

Teaching strategies are essential in order to facilitate meaningful learning and the development of high-level thinking skills in students. To compare three teaching methodologies (problem-based learning, case-based teaching and traditional methods) in terms of the learning outcomes achieved by nursing students. This quasi-experimental research was carried out in the Nursing Degree programme in a group of 74 students who explored the subject of The Oncology Patient through the aforementioned strategies. A performance test was applied based on Bloom's Revised Taxonomy. A significant correlation was found between the intragroup theoretical and theoretical-practical dimensions. Likewise, intergroup differences were related to each teaching methodology. Hence, significant differences were estimated between the traditional methodology (x-=9.13), case-based teaching (x-=12.96) and problem-based learning (x-=14.84). Problem-based learning was shown to be the most successful learning method, followed by case-based teaching and the traditional methodology. Copyright © 2016 Elsevier Ltd. All rights reserved.

Developing Emotion-Based Case Formulations: A Research-Informed Method.

PubMed

Pascual-Leone, Antonio; Kramer, Ueli

2017-01-01

New research-informed methods for case conceptualization that cut across traditional therapy approaches are increasingly popular. This paper presents a trans-theoretical approach to case formulation based on the research observations of emotion. The sequential model of emotional processing (Pascual-Leone & Greenberg, 2007) is a process research model that provides concrete markers for therapists to observe the emerging emotional development of their clients. We illustrate how this model can be used by clinicians to track change and provides a 'clinical map,' by which therapist may orient themselves in-session and plan treatment interventions. Emotional processing offers as a trans-theoretical framework for therapists who wish to conduct emotion-based case formulations. First, we present criteria for why this research model translates well into practice. Second, two contrasting case studies are presented to demonstrate the method. The model bridges research with practice by using client emotion as an axis of integration. Key Practitioner Message Process research on emotion can offer a template for therapists to make case formulations while using a range of treatment approaches. The sequential model of emotional processing provides a 'process map' of concrete markers for therapists to (1) observe the emerging emotional development of their clients, and (2) help therapists develop a treatment plan. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.

Locating Gender: Occupational Segregation, Wages and Domestic Responsibilities. Cambridge Studies in Work and Social Inequality 1.

ERIC Educational Resources Information Center

Siltanen, Janet

This text combines a case-study approach with significant theoretical development to challenge existing explanations of occupational segregation. Chapter 1 reviews issues raised by the conceptual status of "gender" in attempting to explain women's and men's employment experience and introduces the study that forms the core of the…

A Case Study of Pedagogy of Mathematics Support Tutors without a Background in Mathematics Education

ERIC Educational Resources Information Center

Walsh, Richard

2017-01-01

This study investigates the pedagogical skills and knowledge of three tertiary-level mathematics support tutors in a large group classroom setting. This is achieved through the use of video analysis and a theoretical framework comprising Rowland's Knowledge Quartet and general pedagogical knowledge. The study reports on the findings in relation to…

Old and New Ways to Study Characteristics of Reading Disability: The Case of the Nonword-Reading Deficit

ERIC Educational Resources Information Center

Van den Broeck, Wim; Geudens, Astrid

2012-01-01

Theoretical and computational models of reading have traditionally been informed by specific characteristics of disabled readers. One of the most frequently studied marker effects of developmental dyslexia is the nonword-reading deficit. Disabled readers are generally believed to show a specific problem in reading nonwords. This study presents a…

Emerging Theoretical Models of Reading through Authentic Assessments among Preservice Teachers: Two Case Studies

ERIC Educational Resources Information Center

Oboler, Eileen S.; Gupta, Abha

2010-01-01

This two-part study examines the emerging understanding of the reading process among preservice teachers (PTs), enrolled in a teacher preparation course on diagnostic reading. The study focuses on the use of reading assessment tools to understand the process of reading, while using reading inventories for diagnostic as well as pedagogical…

The Schooling Experience of Adolescent Boys with AD/HD: An Australian Case Study

ERIC Educational Resources Information Center

Gibbs, Kathryn; Mercer, K. Louise; Carrington, Suzanne

2016-01-01

This study explored the experience of schooling of six adolescent boys diagnosed with AD/HD from the perspectives of the boys, their mothers and their teachers. The study utilised social constructionism as the theoretical orientation and the Dynamic Developmental Theory (DDT) of AD/HD as the explanatory framework. Utilising a multiple,…

Key trends in environmental advertising across 30 years in National Geographic magazine.

PubMed

Ahern, Lee; Bortree, Denise Sevick; Smith, Alexandra Nutter

2013-05-01

This longitudinal retrospective case study describes the sponsors, ad types, frames and message factors in green advertising over three decades in National Geographic magazine, the bellwether nature publication in the USA. In addition to providing a clearer picture of the extent and nature of environmental strategic messaging over three decades, results provide empirical support for theoretical relationships between the level of green advertising and economic indicators. After providing historical and theoretical context, detailed results are presented for both overall and longitudinal analysis. Limitations and implications for future research are discussed.

Modeling of chemical reactions in micelle: water-mediated keto-enol interconversion as a case study.

PubMed

Marracino, Paolo; Amadei, Andrea; Apollonio, Francesca; d'Inzeo, Guglielmo; Liberti, Micaela; di Crescenzo, Antonello; Fontana, Antonella; Zappacosta, Romina; Aschi, Massimiliano

2011-06-30

The effect of a zwitterionic micelle environment on the efficiency of the keto-enol interconversion of 2-phenylacetylthiophene has been investigated by means of a joint application of experimental and theoretical/computational approaches. Results have revealed a reduction of the reaction rate constant if compared with bulk water essentially because of the different solvation conditions experienced by the reactant species, including water molecules, in the micelle environment. The slight inhibiting effect due to the application of a static electric field has also been theoretically investigated and presented.

Combining Advanced Turbulent Mixing and Combustion Models with Advanced Multi-Phase CFD Code to Simulate Detonation and Post-Detonation Bio-Agent Mixing and Destruction

DTIC Science & Technology

2017-10-01

perturbations in the energetic material to study their effects on the blast wave formation. The last case also makes use of the same PBX, however, the...configuration, Case A: Spore cloud located on the top of the charge at an angle 45 degree, Case B: Spore cloud located at an angle 45 degree from the charge...theoretical validation. The first is the Sedov case where the pressure decay and blast wave front are validated based on analytical solutions. In this test

Patient-, organization-, and system-level barriers and facilitators to preventive oral health care: a convergent mixed-methods study in primary dental care.

PubMed

Templeton, Anna Rose; Young, Linda; Bish, Alison; Gnich, Wendy; Cassie, Heather; Treweek, Shaun; Bonetti, Debbie; Stirling, Douglas; Macpherson, Lorna; McCann, Sharon; Clarkson, Jan; Ramsay, Craig

2016-01-12

Dental caries is the most common chronic disease of adult and childhood, a largely preventable yet widespread, costly public health problem. This study identified patient-, organization-, and system-level factors influencing routine delivery of recommended care for prevention and management of caries in primary dental care. A convergent mixed-methods design assessed six guidance-recommended behaviours to prevent and manage caries (recording risk, risk-based recall intervals, applying fluoride varnish, placing preventive fissure sealants, demonstrating oral health maintenance, taking dental x-rays). A diagnostic questionnaire assessing current practice, beliefs, and practice characteristics was sent to a random sample of 651 dentists in National Health Service (NHS) Scotland. Eight in-depth case studies comprising observation of routine dental visits and dental team member interviews were conducted. Patient feedback was collected from adult patients with recent checkups at case study practices. Key informant interviews were conducted with decision makers in policy, funding, education, and regulation. The Theoretical Domains Framework within the Behaviour Change Wheel was used to identify and describe patient-, organization-, and system-level barriers and facilitators to care. Findings were merged into a matrix describing theoretical domains salient to each behaviour. The matrix and Behaviour Change Wheel were used to prioritize behaviours for change and plan relevant intervention strategies. Theoretical domains associated with best practice were identified from the questionnaire (N-196), case studies (N = 8 practices, 29 interviews), and patient feedback (N = 19). Using the study matrix, key stakeholders identified priority behaviours (use of preventive fissure sealants among 6-12-year-olds) and strategies (audit and feedback, patient informational campaign) to improve guidance implementation. Proposed strategies were assessed as appropriate for immediate implementation and suitable for development with remaining behaviours. Specific, theoretically based, testable interventions to improve caries prevention and management were coproduced by patient-, practice-, and policy-level stakeholders. Findings emphasize duality of behavioural determinants as barriers and facilitators, patient influence on preventive care delivery, and benefits of integrating multi-level interests when planning interventions in a dynamic, resource-constrained environment. Interventions identified in this study are actively being used to support ongoing implementation initiatives including guidance, professional development, and oral health promotion.

Theoretical background of retrieving Green's function by cross-correlation: one-dimensional case

NASA Astrophysics Data System (ADS)

Nakahara, Hisashi

2006-06-01

Recently, an assertion has been verified experimentally and theoretically that Green's function between two receivers can be reproduced by cross-correlating the records at the receivers. In this paper, we have theoretically proved the assertion for 1-D media with the free surface by using the Thomson-Haskell matrix method. Strictly speaking, one side of the cross-correlation between records at two receivers is the convolution between Green's function and the autocorrelation function of the source wavelet. This study extends the geometry considered by Claerbout to two receivers vertically apart, and is a special case of the proof by Wapenaar et al. which dealt with 3-D arbitrary inhomogeneous media. However, a simple geometry in 1-D problems enables us to make the proof without any approximations and to better understand the physical background with more ease. That is the main advantage of this study. Though a 1-D geometry seems far from reality, it may be sufficient if an appropriate combination of receivers and earthquakes is selected. In fact, such a geometry is often seen in seismological observations by a vertical array of seismographs in the shallow subsurface. Therefore, we refer to a possibility that the proof in this paper is applied to the estimation of site amplification factors by using records of a vertical seismographic array.

Theoretical study of turbulent channel flow - Bulk properties, pressure fluctuations, and propagation of electromagnetic waves

NASA Technical Reports Server (NTRS)

Canuto, V. M.; Hartke, G. J.; Battaglia, A.; Chasnov, J.; Albrecht, G. F.

1990-01-01

In this paper, we apply two theoretical turbulence models, DIA and the recent GISS model, to study properties of a turbulent channel flow. Both models provide a turbulent kinetic energy spectral function E(k) as the solution of a non-linear equation; the two models employ the same source function but different closures. The source function is characterized by a rate n sub s (k) which is derived from the complex eigenvalues of the Orr-Sommerfeld (OS) equation in which the basic flow is taken to be of a Poiseuille type. The O-S equation is solved for a variety of Reynolds numbers corresponding to available experimental data. A physical argument is presented whereby the central line velocity characterizing the basic flow, U0 sup L, is not to be identified with the U0 appearing in the experimental Reynolds number. The theoretical results are compared with two types of experimental data: (1) turbulence bulk properties, and (2) properties that depend strongly on the structure of the turbulence spectrum at low wave numbers. The only existing analytical expression for Pi (k) cannot be used in the present case because it applies to the case of a flat plate, not a finite channel.

Cross-Dialectal Comparison: A Case Study and Some Theoretical Considerations

ERIC Educational Resources Information Center

Chen, Matthew

1973-01-01

Revised version of a paper delivered at the 5th International Conference on Sino-Tibetan Language and Linguistic Studies, Ann Arbor, Michigan, October 20-21, 1972. Assistance provided through a Summer Faculty Fellowship, University of California, San Diego, and the Phonology Laboratory at Berkeley (supported in part by a National Science…

Teaching Critical Thinking: Cultural Challenges and Strategies in Singapore

ERIC Educational Resources Information Center

Tan, Charlene

2017-01-01

Among the challenges faced by educators in promoting critical thinking is that of cultural compatibility. Using Singapore as an illustrative case study, this paper explores the cultural challenges and recommended strategies for the teaching of critical thinking in schools. The research for this study is based on a theoretical framework that…

Exploring the Effectiveness of a Curricular Choice Majors Program on Teacher Motivation

ERIC Educational Resources Information Center

VanDeusen Gaddis, Linda Marie

2014-01-01

The purpose of this qualitative case study was to explore how a curricular choice majors program influenced teacher motivation and student performance at a charter high school in Pennsylvania from the perception of the administration and teachers. The theoretical foundation for this study was the attribution motivation theory. This theory…

Building College Access with Families in New Bedford, Massachusetts: A Case Study

ERIC Educational Resources Information Center

Marks, Sue Anne

2012-01-01

This qualitative study was an investigation into improving college access through family engagement with minority and low-income students in an urban school district. Critical theory concepts of cultural capital, field, and habitus, as well as organizational communication theory, formed the theoretical framework that guided a literature review and…

Framing Innovation: The Role of Distributed Leadership in Gaining Acceptance of Large-Scale Technology Initiatives

ERIC Educational Resources Information Center

Turner, Henry J.

2014-01-01

This dissertation of practice utilized a multiple case-study approach to examine distributed leadership within five school districts that were attempting to gain acceptance of a large-scale 1:1 technology initiative. Using frame theory and distributed leadership theory as theoretical frameworks, this study interviewed each district's…

Exploring Conditions for Transformative Learning in Work-Integrated Education

ERIC Educational Resources Information Center

McRae, Norah

2015-01-01

A qualitative study was undertaken that explored the conditions for transformative learning in cooperative education as a form of work-integrated learning (WIL), towards the development of a theoretical model. Four case studies were analyzed based on interviews with WIL students, supervisors and their co-op coordinator. The findings revealed that…

Bullying in School: Case Study of Prevention and Psycho-Pedagogical Correction

ERIC Educational Resources Information Center

Ribakova, Laysan A.; Valeeva, Roza A.; Merker, Natalia

2016-01-01

The purpose of the study was the theoretical justification and experimental verification of content, complex forms and methods to ensure effective prevention and psycho-pedagogical correction of bullying in school. 53 teenage students from Kazan took part in the experiment. A complex of diagnostic techniques for the detection of violence and…

A New Context Affording for Regulation: The Case of Musical Play

ERIC Educational Resources Information Center

Zachariou, Antonia; Whitebread, David

2017-01-01

The present study set out to investigate theoretical speculations that regulation and musical play, an initial manifestation of musicality, are directly linked. This study aimed to explore the potential for regulation to occur during musical play and investigate the nature of the regulatory behaviours. Thirty-six children, aged 6 and 8, were…

"A Writer More than . . . A Child": A Longitudinal Study Examining Adolescent Writer Identity

ERIC Educational Resources Information Center

Lammers, Jayne C.; Marsh, Valerie L.

2018-01-01

This article reconsiders theoretical claims of identity fluidity, stability, and agency through a longitudinal case study investigating one adolescent's writing over time and across spaces. Qualitative data spanning her four years of high school were collected and analyzed using a grounded theory approach with literacy-and-identity theory…

A Study of How Certified and Noncertified Automotive Curriculum Impact Student Achievement

ERIC Educational Resources Information Center

VanDalsem, B.

2010-01-01

The purpose of this case study was to examine whether written curriculum for Automotive Service Excellence (ASE) certified and non-certified training programs better prepares students for entry-level positions. The theoretical framework based on research by Frase described methodologies for comparing curricula at the system, school, and classroom…

A Framework for Studying Minority Youths' Transitions to Fatherhood: The Case of Puerto Rican Adolescents

ERIC Educational Resources Information Center

Erkut, Sumru; Szalacha, Laura A.; Coll, Cynthia Garcia

2005-01-01

A theoretical framework is proposed for studying minority young men's involvement with their babies that combines the integrative model of minority youth development and a life course developmental perspective with Lamb's revised four-factor model of father involvement. This framework posits a relationship between demographic and family background…

What Are Disciplinary Literacies in Dance and Drama in the Elementary Grades?

ERIC Educational Resources Information Center

Frambaugh-Kritzer, Charlotte; Buelow, Stephanie; Simpson Steele, Jamie

2015-01-01

Disciplinary literacies in dance and drama are underrepresented in classrooms and in scholarship, especially at the elementary level. The purpose of this qualitative case study was to examine how preservice teachers constructed meaning of the disciplinary literacies in dance and drama. The theoretical framework guiding this study was drawn from…

Messages in Collusion: Resident Assistants and White Racial Identity Development

ERIC Educational Resources Information Center

Cook, Kathy; McCoy, Dorian L.

2017-01-01

This critical case study examined the racial identity development of 10 White RAs who participated in 12 hours of diversity and social justice training during a two-week summer program. Helm's White Racial Identity Development Model served as the study's theoretical framework. In this paper, we discuss the incongruence between the Northeast State…

Persistence in Distance Education: A Study Case Using Bayesian Network to Understand Retention

ERIC Educational Resources Information Center

Eliasquevici, Marianne Kogut; da Rocha Seruffo, Marcos César; Resque, Sônia Nazaré Fernandes

2017-01-01

This article presents a study on the variables promoting student retention in distance undergraduate courses at Federal University of Pará, aiming to help school managers minimize student attrition and maximize retention until graduation. The theoretical background is based on Rovai's Composite Model and the methodological approach is conditional…

Inside the College Writing Gap: Exploring the Mixed Messages of Remediation Support

ERIC Educational Resources Information Center

Relles, Stefani R.; Duncheon, Julia C.

2018-01-01

This case study offers a qualitative perspective on a relationship between institutional structures and student outcomes. The data describe the conditions in 10 English remediation classrooms at one urban community college district. The study uses new literacies as a theoretical framework with which to understand how these conditions supported…

What Influences Physical Activity Provision in After-School Childcare in the Absence of Policy Guidance? A Qualitative Exploration

ERIC Educational Resources Information Center

MacFarlane, Kendra; Wharf Higgins, Joan; Naylor, Patti-Jean

2018-01-01

Objective: This study explored factors affecting the implementation of good-quality physical activity provision in after-school childcare delivered in a Canadian jurisdiction without specific policy, standards or active interventions aimed at increasing physical activity underway. Design: Case study design theoretically guided by the…

A Mathematics Teacher's Practice in a Technological Environment: A Case Study Analysis Using Two Complementary Theories

ERIC Educational Resources Information Center

Tabach, Michal

2011-01-01

Integrating technology in school mathematics has become more and more common. The teacher is a key person in integrating technology into everyday practice. To understand teacher practice in a technological environment, this study proposes using two theoretical perspectives: the theory of technological pedagogical content knowledge to analyze…

Exploring Chaos: A Case Study.

ERIC Educational Resources Information Center

Nemirovsky, Ricardo; Tinker, Robert

1993-01-01

Describes software, hardware, and devices that were designed to provide students with an environment to experiment with basic ideas of mechanics, including nonlinear dynamics. Examines the behavior of a Lorenzian water wheel by comparing experimental data with theoretical results obtained from computer-based sensors. (MDH)

From front yards to street corners: revitalizing neighborhoods through community-based land stewardship

Treesearch

Colleen Murphy-Dunning

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

Cultivating resilience: urban stewardship as a means to improving health and well-being

Treesearch

Erika Svendsen

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

Reference Assessment

ERIC Educational Resources Information Center

Bivens-Tatum, Wayne

2006-01-01

This article presents interesting articles that explore several different areas of reference assessment, including practical case studies and theoretical articles that address a range of issues such as librarian behavior, patron satisfaction, virtual reference, or evaluation design. They include: (1) "Evaluating the Quality of a Chat Service"…

Deliverology

ERIC Educational Resources Information Center

Nordstrum, Lee E.; LeMahieu, Paul G.; Dodd, Karen

2017-01-01

Purpose: This paper is one of seven in this volume elaborating different approaches to quality improvement in education. This paper aims to delineate a methodology called Deliverology. Design/methodology/approach: The paper presents the origins, theoretical foundations, core principles and a case study showing an application of Deliverology in the…

The benefits of community-managed open space: community gardening in New York City

Treesearch

Edie Stone

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

Counseling Taiwan Chinese in America: Training Issues for Counselors.

ERIC Educational Resources Information Center

Miller, Geri; Yang, Julia; Chen, M.

1997-01-01

Examines cultural influences (such as Confucianism, family, and immigration) on Taiwan Chinese in America who seek counseling. Addresses typical counseling struggles, effective counseling strategies and theoretical approaches, and training implications. Uses a case study to elaborate on the above themes. (RJM)

Transfer in Pieces

ERIC Educational Resources Information Center

Wagner, Joseph F.

2006-01-01

The theoretical perspective outlined here offers an alternative to explanations of knowledge transfer that posit its source in the construction and application of abstract, context-independent knowledge structures. A case study analysis of an undergraduate student's attempt to solve a series of problems related to an elementary statistical…

Evaluation of the Professional Development Program on Web Based Content Development

ERIC Educational Resources Information Center

Yurdakul, Bünyamin; Uslu, Öner; Çakar, Esra; Yildiz, Derya G.

2014-01-01

The aim of this study is to evaluate the professional development program on web based content development (WBCD) designed by the Ministry of National Education (MoNE). Based on the theoretical CIPP model by Stufflebeam and Guskey's levels of evaluation, the study was carried out as a case study. The study group consisted of the courses that…

Studying Relational Spaces in Secondary School: Applying a Spatial Framework for the Study of Borderlands and Relational Work in School Improvement Processes

ERIC Educational Resources Information Center

Frelin, Anneli; Grannäs, Jan

2014-01-01

This article introduces a theoretical framework for studying school improvement processes such as making school environments safer. Using concepts from spatial theory, in which distinctions between mental, social and physical space are applied makes for a multidimensional analysis of processes of change. In a multilevel case study, these were…

Satisfaction Surveys as Mechanisms to Assess the Success of an Institution of Higher Learning as an "Inviting Institution": A Case Study

ERIC Educational Resources Information Center

Brits, H. J.

2011-01-01

This study reflects on an institution of higher learning's study to determine the satisfaction and importance values of questions that relate to services rendered by the institution. This institution's Academic Plan and its teaching and learning strategies underpin theoretically socio-constructivism. This study was conducted from an invitational…

An integrated hypnotherapeutic model for the treatment of childhood sexual trauma: a case study.

PubMed

Fourie, Gerda; Guse, Tharina

2011-01-01

Sexual abuse appears to constitute a major risk factor for a variety of problems in adult life. The effects of abuse on adult living are not uniform therefore intervention strategies should be individualized to address unique symptom constellations. The purpose of this paper is to introduce an integrated Ericksonian and Ego state therapy approach, based on a strengths perspective for the treatment of survivors of childhood sexual abuse. The theoretical foundation for this model is described, followed by a case study. The case study demonstrates how application of this model enabled the client to resolve the experience of sexual abuse, as well as to enhance her sense of general psychological well-being.

A multimedia case based approach to the study of office ergonomics.

PubMed

August-Dalfen, Sharon; Snider, Laurie

2003-01-01

Multimedia technology has the capacity to provide students with an interactive approach to problem based learning and to bridge the gap between theoretical knowledge and clinical practice. The present paper describes the design and development of the program ErgoROM, a CD which presents a case study to assist occupational therapy students in their studies of office ergonomics. A pilot study showed that overall, 91% of respondents rated the ErgoROM as either "Excellent" or "Very Good". Additionally they reported that ErgoROM had a positive impact on active learning and critical thinking.

Primary Child Health Care Nurses' assessment of health risks in children of foreign origin and their parents--a theoretical model.

PubMed

Berlin, Anita; Hylander, Ingrid; Törnkvist, Lena

2008-03-01

According to recent studies, intercultural interaction in health care between clients and care-givers seems to be problematic. A recent Swedish study revealed that a majority of Primary Child Health Care Nurses (PCHNurses) experienced difficulties in their interaction with children and parents of foreign origin. As every third child in the Primary Child Heath Care (PCHC) services is of foreign origin it seem to be of utmost importance to examine in depth how these difficulties could be understood and explained. The present study aimed at a theoretical explanation of the core problem concerning PCHNurses' interaction with children and parents of foreign origin, as experienced by the PCHNurses. Fifteen PCHNurses working in the PCHC services were interviewed. Grounded Theory was used as research methodology because focus is on social interactions and the aim is to theoretically explain unarticulated social processes. Anxiety about missing children, exposed to risks of ill-health, due to various conditions in the child's home environment, turned out to be the PCHNurses' main concern. An assessment of health risks was initiated, when PCHNurses thought that psychosocial conditions in the child's environment might cause ill health. Some of the psychosocial conditions were difficult to assess, as they were unfamiliar and not understood by the PCHNurses. In such difficult-to-assess cases, when the PCHNurses considered the possibility of undefined risk to the child's health they held on to the assessment of the cases and worked out strategies to learn and understand more about the child and the child's home environment. A theoretical model grounded in data was created accounting for the variation in the assessment process and the different strategies used. Implications are discussed and recommendations for improvements are given.

Developing comparative criminology and the case of China: an introduction.

PubMed

Liu, Jianhong

2007-02-01

Although comparative criminology has made significant development during the past decade or so, systematic empirical research has only developed along a few topics. Comparative criminology has never occupied a central position in criminology. This article analyzes the major theoretical and methodological impediments in the development of comparative criminology. It stresses a need to shift methodology from a conventional primary approach that uses the nation as the unit of analysis to an in-depth case study method as a primary methodological approach. The article maintains that case study method can overcome the limitation of its descriptive tradition and become a promising methodological approach for comparative criminology.

Effects of target heating on experiments using Kα and Kβ diagnostics.

PubMed

Palmeri, P; Boutoux, G; Batani, D; Quinet, P

2015-09-01

We describe the impact of heating and ionization on emission from the target of Kα and Kβ radiation induced by the propagation of hot electrons generated by laser-matter interaction. We consider copper as a test case and, starting from basic principles, we calculate the changes in emission wavelength, ionization cross section, and fluorescence yield as Cu is progressively ionized. We have finally considered the more realistic case when hot electrons have a distribution of energies with average energies of 50 and 500 keV (representative respectively of "shock ignition" and of "fast ignition" experiments) and in which the ions are distributed according to ionization equilibrium. In addition, by confronting our theoretical calculations with existing data, we demonstrate that this study offers a generic theoretical background for temperature diagnostics in laser-plasma interactions.

Comparative study: TQ and Lean Production ownership models in health services

PubMed Central

Eiro, Natalia Yuri; Torres-Junior, Alvair Silveira

2015-01-01

Objective: compare the application of Total Quality (TQ) models used in processes of a health service, cases of lean healthcare and literature from another institution that has also applied this model. Method: this is a qualitative research that was conducted through a descriptive case study. Results: through critical analysis of the institutions studied it was possible to make a comparison between the traditional quality approach checked in one case and the theoretical and practice lean production approach used in another case and the specifications are described below. Conclusion: the research identified that the lean model was better suited for people that work systemically and generate the flow. It also pointed towards some potential challenges in the introduction and implementation of lean methods in health. PMID:26487134

On the use of Different Methodologies in Cognitive Neuropsychology: Drink Deep and from Several Sources

PubMed Central

Nickels, Lyndsey; Howard, David; Best, Wendy

2012-01-01

Cognitive neuropsychology has championed the use of single-case research design. Recently, however, case series designs that employ multiple single cases have been increasingly utilized to address theoretical issues using data from neuropsychological populations. In this paper, we examine these methodologies, focusing on a number of points in particular. First we discuss the use of dissociations and associations, often thought of as a defining feature of cognitive neuropsychology, and argue that they are better viewed as part of a spectrum of methods that aim to explain and predict behaviour. We also raise issues regarding case series design in particular, arguing that selection of an appropriate sample, including controlling degree of homogeneity, is critical and constrains the theoretical claims that can be made on the basis of the data. We discuss the possible interpretation of “outliers” in a case series, suggesting that while they may reflect “noise” caused by variability in performance due to factors that are not of relevance to the theoretical claims, they may also reflect the presence of patterns that are critical to test, refine, and potentially falsify our theories. The role of case series in treatment research is also raised, in light of the fact that, despite their status as gold standard, randomized controlled trials cannot provide answers to many crucial theoretical and clinical questions. Finally, we stress the importance of converging evidence: We propose that it is conclusions informed by multiple sources of evidence that are likely to best inform theory and stand the test of time. PMID:22746689

A case study on modeling and independent practice cycles in teaching beginning science inquiry

NASA Astrophysics Data System (ADS)

Sadeghpour-Kramer, Margaret Ann Plattenberger

With increasing pressure to produce high standardized test scores, school systems will be looking for the surest ways to increase scores. Decision makers uninformed about the value of inquiry science may recommend more direct teaching methods and curricula in the hope that students will more quickly accumulate factual information for high test scores. This researcher and other proponents of inquiry science suggest that the best preparation for any test is the ability to use all available information and problem solving skills to think through to a solution. This study proposes to test the theory that inquiry problem solving skills need to be modeled and practiced in increasingly independent situations to be learned. Students tend to copy what they have been led to believe is correct, and to avoid continued copying, their skills must be applied in new situations requiring independent practice and improvement. This study follows ten sixth grade students, selected for maximum variation, as they participate in a series of five cycles of modeling and practicing inquiry science investigations as part of an ongoing unit on water quality. The cycles were designed to make the students increasingly independent in their use of inquiry. The results showed that all ten students made significant progress from copying teacher modeling in investigation #1 towards independent inquiry, with nine of the ten achieving acceptable to good beginning independent inquiry in investigation #5. Each case was analyzed independently using such case study methodology as pattern matching, case study protocols, and theoretical propositions. Constant comparison and other case study methods were used in a cross-case analysis. Eight cases confirmed a matching set of propositions and the hypothesis, in literal replication, and the other two cases confirmed a set of propositions and the hypothesis through theoretical replication. The study suggests to educators that repeated cycles of modeling and increasingly independent practice serve three purposes; first to develop independent inquiry skills by providing multiple opportunities with intermittent modeling, second to repeat the modeling initially in very similar situations and then encourage transfer to new situations, and third to provide repeated modeling for those students who do not grasp the concepts as quickly as do their classmates.

The Influence of Public Pedagogy on Adult and Higher Education Learners' Perceptions of and Motivations to Study Abroad at a Hispanic Serving Institution

ERIC Educational Resources Information Center

Nguyen, Shelbee Rhea

2012-01-01

This study utilized qualitative single-case study design to provide rich description and offer new understandings within a socio-cultural theoretical frame about how adult and higher education learners perceive and are motivated to participate in study abroad programs. Three faculty-led study abroad courses at a Hispanic serving institution in the…

Theoretical study of air forces on an oscillating or steady thin wing in a supersonic main stream

NASA Technical Reports Server (NTRS)

Garrick, I E; Rubinow, S I

1947-01-01

A theoretical study, based on the linearized equations of motion for small disturbance, is made of the air forces on wings of general plan forms moving forward at a constant supersonic speed. The boundary problem is set up for both the harmonically oscillating and the steady conditions. Two types of boundary conditions are distinguished, which are designated "purely supersonic" and "mixed supersonic." the method is illustrated by applications to a number of examples for both the steady and the oscillating conditions. The purely supersonic case involves independence of action of the upper and lower surfaces of the airfoil and present analysis is mainly concerned with this case. A discussion is first given of the fundamental or elementary solution corresponding to a moving source. The solutions for the velocity potential are then synthesized by means of integration of the fundamental solution for the moving source. The method is illustrated by applications to a number of examples for both the steady and the oscillating cases and for various plan forms, including swept wings and rectangular and triangular plan forms. The special results of a number of authors are shown to be included in the analysis.

The Case Study Approach: Some Theoretical, Methodological and Applied Considerations

DTIC Science & Technology

2013-06-01

For example, a variety of programs/software are available such as: NUDIST , ATLAS/ti, HyperRESEARCH, AQUAD etc (Kelle 1997; Barry 1998... Nudist compared." Sociological Research Online 3(3). Baruch, Y. & Labert, R. (2007). "Organizational anxiety: Applying psychological concepts into

A Spiritual Framework in Incest Survivors Treatment

ERIC Educational Resources Information Center

Beveridge, Kelli; Cheung, Monit

2004-01-01

Through an examination of recent incest treatment development, this article emphasizes the theoretical concept of "integration" within the treatment process for female adult incest survivors. Spirituality as a therapeutic foundation is discussed with examples of therapeutic techniques. A case study illustrates the psycho-spiritual process of…

Narratives of Menstrual Product Consumption: Convenience, Culture, or Commoditization?

ERIC Educational Resources Information Center

Davidson, Anna

2012-01-01

The environmental and social costs of consumer societies have increasingly been recognized. Achieving sustainable household consumption requires an understanding of the underlying roots of current consumption levels. Using the case study of menstrual care practices, different theoretical frameworks--or narratives--for understanding household…

Landscape designers, doctors, and the making of healthy urban spaces in 19th century America

Treesearch

Robert Martensen

2009-01-01

One of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban...

Underachieving Gifted Students: Two Case Studies

ERIC Educational Resources Information Center

Bennett-Rappell, Hannah; Northcote, Maria

2016-01-01

Almost half of all gifted students do not achieve according to their exceptional potential. Though significant research has investigated identifying characteristics of underachieving gifted students, current research is yet to fully employ the established theoretical knowledge to determine practical strategies for the reversal and remediation of…

[Managerial performance in public health services: a case study in Mato Grosso do Sul, Brazil].

PubMed

Barbieri, Ana Rita; Hortale, Virginia Alonso

2005-01-01

This paper presents part of a doctoral dissertation that developed a theoretical model capable of identifying managerial performance in various administrative levels of a Municipal Health Secretariat. The methodology was a case study of the Municipal Health Secretariat in Campo Grande, capital of the State of Mato Grosso do Sul, Brazil. The theoretical model was based on recent debates emphasizing the need to modernize public administration, with an emphasis on efficacy and efficiency in the organizations as a whole. Some 31 interviews were conducted with the objective of identifying the managers' performance, through questions based on their daily practices in planning, organization, direction, and control. Managers from higher hierarchical levels obtained better results, while those in basic health units generally developed activities and complied with decisions passed down by imposition, with limited capacity to plan, organize, or control activities pertaining to their management sphere. These results stem partially from the charismatic leadership and centralizing administration of the current management in the municipal health system.

Late-Onset ADHD: Understanding the Evidence and Building Theoretical Frameworks.

PubMed

Caye, Arthur; Sibley, Margaret H; Swanson, James M; Rohde, Luis Augusto

2017-11-13

The traditional definition of Attention-Deficit/Hyperactivity Disorder (ADHD), assuming onset in childhood, has been challenged by evidence from four recent birth-cohort studies that reported most adults with ADHD lacked a childhood categorical ADHD diagnosis. Late onset of symptoms was evaluated in the long-term follow-up of the Multimodal Treatment study of ADHD (MTA). In most cases, other factors were present that discounted the late onset of ADHD symptoms and excluded the diagnosis of ADHD. We offer two theoretical frameworks for understanding the ADHD trajectory throughout the life cycle: (1) the complex phenotype model, and (2) the restricted phenotype model. We conclude that (a) late onset (after age 12) is a valid trajectory for ADHD symptoms, (b) the percentage of these cases with onset after adolescence is yet uncertain, and (c) the percentage meeting exclusion criteria for diagnosis of ADHD is influenced by the rigor of the methodology used to obtain evidence and whether or not DSM exclusionary criteria are applied.

Basic medium oxidation of aromatic α-hydroxy-ketones: A free radical mechanism

NASA Astrophysics Data System (ADS)

Gómez-Vidales, Virginia; Vargas, Marina; Meléndez, Iván; Salmón, Manuel; Sansón-O, Carmen; Zaragoza, I. P.; Zolotukhin, Mikhail; Salcedo, Roberto

2010-01-01

A systematic study was undertaken of the EPR of sodium hydroxide solutions of Benzoin, Anisoin and Thenoin in both ethanol and DMSO as well as their corresponding ionised species of varying colours. In all cases, the EPR consist of symmetric spectra, resulting from the generation of a free radical-anion. Furthermore, theoretical DFT methods were applied in order to study the radical anions, revealing the reason for the colour change in the solutions and in the case of benzoin, found to be related to the interaction between the cis and trans-isomers with the molecules in the two solvents. We have defined the structure of the cis-isomer and for the first time we have described how the adduct between the cis-isomer and the solvent molecule, results in a stable conformer. This corresponds with the EPR results which indicated a significant difference between the cis and trans-isomers. Both the theoretical and experimental results inspired similar descriptions of the significant differences between the cis and trans-isomers in solution.

Enactive Approach and Dual-Tasks for the Treatment of Severe Behavioral and Cognitive Impairment in a Person with Acquired Brain Injury: A Case Study.

PubMed

Martínez-Pernía, David; Huepe, David; Huepe-Artigas, Daniela; Correia, Rut; García, Sergio; Beitia, María

2016-01-01

One of the most important sequela in persons who suffer from acquired brain injury is a behavioral disorder. To date, the primary approaches for the rehabilitation of this sequela are Applied Behavior Analysis, Cognitive-Behavior Therapy, and Comprehensive-Holistic Rehabilitation Programs. Despite this theoretical plurality, none of these approaches focuses on rehabilitating behavioral disorders considering the relation between affordance and environmental adaptation. To introduce this therapeutic view to neurorehabilitation, we apply the theoretical tenets of the enactive paradigm to the rehabilitation of a woman with severe behavioral and cognitive impairment. Over seventeen sessions, her behavioral and cognitive performance was assessed in relation to two seated affordances (seated on a chair and seated on a ball 65 cm in diameter) and the environmental adaptation while she was working on various cognitive tasks. These two seated affordances allowed to incorporate the theoretical assumptions of the enactive approach and to know how the behavior and the cognition were modified based on these two postural settings and the environmental adaptation. The findings indicate that the subject exhibited better behavioral (physical and verbal) and cognitive (matching success and complex task) performances when the woman worked on the therapeutic ball than when the woman was on the chair. The enactive paradigm applied in neurorehabilitation introduces a level of treatment that precedes behavior and cognition. This theoretical consideration allowed the discovery of a better relation between a seated affordance and the environmental adaptation for the improvement behavioral and cognitive performance in our case study.

Organizational Learning from Cross-Cultural Experiences: An Ethnomethodological Case Study Examining the Relative Importance of Social Structure and Cultural Values during Dynamic Interaction

ERIC Educational Resources Information Center

Waldecker, Gary T.

2011-01-01

This study explored how social structure and cultural values dynamically interact in collective learning between two religious organizations cooperating in a joint project. It further explored the enablers of and impediments to collective learning in this context. The study employed the theoretical framework provided by the Organizational Learning…

The Rate of Intramolecular Loop Formation in DNA and Polypeptides: The Absence of the Diffusion-Controlled Limit and Fractional Power-Law Viscosity Dependence

PubMed Central

Cheng, Ryan R.; Uzawa, Takanori; Plaxco, Kevin W.; Makarov, Dmitrii E.

2010-01-01

The problem of determining the rate of end-to-end collisions for polymer chains has attracted the attention of theorists and experimentalists for more than three decades. The typical theoretical approach to this problem has focused on the case where a collision is defined as any instantaneous fluctuation that brings the chain ends to within a specific capture distance. In this paper, we study the more experimentally relevant case, where the end-to-end collision dynamics are probed by measuring the excited state lifetime of a fluorophore (or other lumiphore) attached to one chain end and quenched by a quencher group attached to the other end. Under this regime, a “contact” is defined not by the chain ends approach to within some sharp cutoff but, instead, typically by an exponentially distance-dependent process. Previous theoretical models predict that, if quenching is sufficiently rapid, a diffusion-controlled limit is attained, where such measurements report on the probe-independent, intrinsic end-to-end collision rate. In contrast, our theoretical considerations, simulations, and an analysis of experimental measurements of loop closure rates in single-stranded DNA molecules all indicate that no such limit exists, and that the measured effective collision rate has a nontrivial, fractional power-law dependence on both the intrinsic quenching rate of the fluorophore and the solvent viscosity. We propose a simple scaling formula describing the effective loop closure rate and its dependence on the viscosity, chain length, and properties of the probes. Previous theoretical results are limiting cases of this more general formula. PMID:19780594

Monitoring progression of clinical reasoning skills during health sciences education using the case method - a qualitative observational study.

PubMed

Orban, Kristina; Ekelin, Maria; Edgren, Gudrun; Sandgren, Olof; Hovbrandt, Pia; Persson, Eva K

2017-09-11

Outcome- or competency-based education is well established in medical and health sciences education. Curricula are based on courses where students develop their competences and assessment is also usually course-based. Clinical reasoning is an important competence, and the aim of this study was to monitor and describe students' progression in professional clinical reasoning skills during health sciences education using observations of group discussions following the case method. In this qualitative study students from three different health education programmes were observed while discussing clinical cases in a modified Harvard case method session. A rubric with four dimensions - problem-solving process, disciplinary knowledge, character of discussion and communication - was used as an observational tool to identify clinical reasoning. A deductive content analysis was performed. The results revealed the students' transition over time from reasoning based strictly on theoretical knowledge to reasoning ability characterized by clinical considerations and experiences. Students who were approaching the end of their education immediately identified the most important problem and then focused on this in their discussion. Practice knowledge increased over time, which was seen as progression in the use of professional language, concepts, terms and the use of prior clinical experience. The character of the discussion evolved from theoretical considerations early in the education to clinical reasoning in later years. Communication within the groups was supportive and conducted with a professional tone. Our observations revealed progression in several aspects of students' clinical reasoning skills on a group level in their discussions of clinical cases. We suggest that the case method can be a useful tool in assessing quality in health sciences education.

Burden sharing or burden shifting Armaments cooperation within NATO

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

Smith, R.W.

1993-01-01

This study has explored the nature of decision-making under conditions of conflicting political and economic imperatives. The participants want the cooperative program to succeed. They also want to bear the least burden necessary for success by shifting it to others. The concepts of burden sharing and burden shifting have been explored in the context of armaments cooperation through analysis of six armaments cooperation cases. The cases ranged from the NATO Sea Sparrow Missile System to the 155MM Autonomous Precision Guided Missile. Ideal models of burden sharing and burden shifting were developed to aid the analysis. The resultant theoretical framework ofmore » armaments cooperation within the NATO alliance has been used to explain success or lack of success in cooperative programs. Each case study addressed the categories of: Political Environment, Program Inception, Management Structure, and Results. Comparative analysis between programs was facilitated by using similar criteria for success or failure throughout. Each of the hypotheses making up the ideal models for burden sharing and burden shifting were examined considering the individual cases. An assessment of validity was made. Comparative analysis of selected case pairs facilitated isolation of factors that may have contributed to different results. These assessments were combined and formed the basis for the final conclusions on each hypothesis and their respective importance. This study adds to the theoretical understanding of alliance politics by examining in depth these concepts. It also supports future efforts to understand alliance politics by providing a framework for examining and testing deductively derived propositions against experience.« less

Experimental and theoretical charge density studies at subatomic resolution.

PubMed

Fischer, A; Tiana, D; Scherer, W; Batke, K; Eickerling, G; Svendsen, H; Bindzus, N; Iversen, B B

2011-11-17

Analysis of accurate experimental and theoretical structure factors of diamond and silicon reveals that the contraction of the core shell due to covalent bond formation causes significant perturbations of the total charge density that cannot be ignored in precise charge density studies. We outline that the nature and origin of core contraction/expansion and core polarization phenomena can be analyzed by experimental studies employing an extended Hansen-Coppens multipolar model. Omission or insufficient treatment of these subatomic charge density phenomena might yield erroneous thermal displacement parameters and high residual densities in multipolar refinements. Our detailed studies therefore suggest that the refinement of contraction/expansion and population parameters of all atomic shells is essential to the precise reconstruction of electron density distributions by a multipolar model. Furthermore, our results imply that also the polarization of the inner shells needs to be adopted, especially in cases where second row or even heavier elements are involved in covalent bonding. These theoretical studies are supported by direct multipolar refinements of X-ray powder diffraction data of diamond obtained from a third-generation synchrotron-radiation source (SPring-8, BL02B2).

An experimental and theoretical study of radiative extinction of diffusion flames

NASA Technical Reports Server (NTRS)

Wichman, Indrek S.; Atreya, A.

1994-01-01

Our work was primarily theoretical and numerical. We investigated the simplified modeling of heat losses in diffusion flames, then we 'ramped up' the level of complexity in each successive study until the final chapter discussed the general problem of soot/flame interaction. With regard to the specific objective of studying radiative extinction, we conclude that in the steady case a self-extinguishing zero-g flame is unlikely to occur. The soot volume fractions are too small. On the other hand, our work does provide rational means for assessing the mixture of chemical energy release and radiative heat release. It also provides clues for suitable 'tailoring' this balance. Thus heat fluxes to surrounding surfaces can be substantially increased by exploiting and modifying its sooting capability.

Social Studies in the Modern Era: A Case Study of Effective Teachers' Use of Literacy and Technology

ERIC Educational Resources Information Center

Curry, Kristal; Cherner, Todd

2016-01-01

The purpose of this research project was to highlight the practices and philosophies of two effective--but different--social studies teachers who balance the demands of teaching in the modern era while honoring their own philosophies for teaching social studies. This project was ground in the theoretical framework provided by TPACK and used a case…

Young Students' Aesthetic Experiences and Meaning-Making Processes in an Outdoor Environmental School Practice

ERIC Educational Resources Information Center

Manni, Annika; Ottander, Christina; Sporre, Karin

2017-01-01

This study uses John Dewey's theoretical concept of "aesthetic experience" in empirically exploring expressions of cognition and emotion in students' meaning-making processes. A case study was conducted in one class of Grade 6 students during a single school semester. This article reports results from five outdoor days. The empirical…

Professional Development for Design-Based Learning in Engineering Education: A Case Study

ERIC Educational Resources Information Center

Gómez Puente, Sonia M.; van Eijck, Michiel; Jochems, Wim

2015-01-01

Design-based learning (DBL) is an educational approach in which students gather and apply theoretical knowledge to solve design problems. In this study, we examined how critical DBL dimensions (project characteristics, design elements, the teacher's role, assessment, and social context) are applied by teachers in the redesign of DBL projects.…

Implementing Fiscal Policies for Special Education at the State Level: Three Perspectives on the Implementation Process of Chapter 766.

ERIC Educational Resources Information Center

Andersen, David F.

This paper reports a case study of the implementation within the special education division of the Massachusetts state department of education of fiscal reforms required by the Massachusetts Comprehensive Special Education Statute, Chapter 766. Three theoretical perspectives were used to organize the study--a rational, organizational, and…

Construction of Pupils' School Achievements and Future Plans in Parent-Teacher Meetings

ERIC Educational Resources Information Center

Tveit, Anne Dorthe

2018-01-01

The aim of the study is to elaborate on factors that contribute to negotiated descriptions of the pupils' social and academic achievements and future plans in parent-teacher meetings. This is discussed according to Habermas' theoretical framework. The methodological approach comprises case-study; using focus-group interview, and the data material…

The Use Value of "Fight Club" in Teaching Theories of Religion

ERIC Educational Resources Information Center

Smith, William E.

2008-01-01

Teaching theories and methods for the academic study of religion poses certain challenges, especially when first-year students are the primary targeted audience. In the following note from the classroom, the author describes a model for successfully employing the film "Fight Club" as a case study for exploring some of the theoretical concepts of…

"Everything Is about Balance": Graduate Education Faculty and the Navigation of Difficult Discourses on Race

ERIC Educational Resources Information Center

Murray-Johnson, Kayon; Ross-Gordon, Jovita M.

2018-01-01

The purpose of this multiple case study was to describe the experiences of graduate education faculty of varying racial/ethnic backgrounds, learning to navigate difficult discourses on race effectively over time. The study employed positionality as a theoretical framework. Findings indicate that faculty balance what we refer to as "strategies…

The Instrumental Genesis Process in Future Primary Teachers Using Dynamic Geometry Software

ERIC Educational Resources Information Center

Ruiz-López, Natalia

2018-01-01

This paper, which describes a study undertaken with pairs of future primary teachers using GeoGebra software to solve geometry problems, includes a brief literature review, the theoretical framework and methodology used. An analysis of the instrumental genesis process for a pair participating in the case study is also provided. This analysis…

Transformational Processes and Learner Outcomes for Online Learning: An Activity Theory Case Study of Spanish Students

ERIC Educational Resources Information Center

Terantino, Joseph M.

2009-01-01

The purpose of this exploratory study was to examine the actions of online language learners from an activity theoretical perspective. It also attempted to explain how the students' learning outcomes evolved from their online learning experiences. This explanation placed an emphasis on the learners' previous experiences, defining their activity…

German Dual Curricula to Improve School to Employment Transition: A Case Study

ERIC Educational Resources Information Center

Stephens, Maria Cecilia Noche

2015-01-01

The German Dual System is a model educational and employment approach that other nations could emulate. The ability of young apprentices to work and study at the same time to gain both practical and theoretical skills leads to more meaningful education and decreased dropout and youth unemployment rates. The collaboration of the government,…

The Implementation of Enrollment Management at Two Public Universities Experiencing Demographic and Funding Challenges

ERIC Educational Resources Information Center

Lee, Stephen

2010-01-01

The purpose of this study was to evaluate the implementation of enrollment management at two public universities. The theoretical framework was conceptual and centered on the effectiveness of the implementation process as a pivotal factor in the development of a comprehensive enrollment management operation. This multi-site case study included 14…

The Effectiveness of Teaching Methods Used in Graphic Design Pedagogy in Both Analogue and Digital Education Systems

ERIC Educational Resources Information Center

Alhajri, Salman

2016-01-01

Purpose: this paper investigates the effectiveness of teaching methods used in graphic design pedagogy in both analogue and digital education systems. Methodology and approach: the paper is based on theoretical study using a qualitative, case study approach. Comparison between the digital teaching methods and traditional teaching methods was…

Writing Experiences of Community College Students with Self-Reported Writing Anxieties and Linguistic Insecurity: A Perspective for College Counselors

ERIC Educational Resources Information Center

Holland, Rochelle

2013-01-01

This explanatory case study researched the writing experiences of 11 community college students who differed subculturally and who were all part of the African diasporic community. The theoretical perspectives used for this study were Arthur Chickering's (1969) classical concept of academic competence and community dialect theory (Baxter &…

Promise and Possibility for Aspiring Principals: An Emerging Leadership Identity through Learning to Do Action Research

ERIC Educational Resources Information Center

Batagiannis, Stella C.

2011-01-01

This case study explored the promise and possibility of doing action research both for aspiring principals engaged in such research and for professors using it as pedagogy for teaching educational leadership. The study of a class of graduate students aspiring to be principals had a constructivist theoretical framework. The research design…

Developing Interventions to Change Recycling Behaviors: A Case Study of Applying Behavioral Science

ERIC Educational Resources Information Center

Gainforth, Heather L.; Sheals, Kate; Atkins, Lou; Jackson, Richard; Michie, Susan

2016-01-01

The Theoretical Domains Framework (TDF) and the Behavior Change Wheel (BCW) are frameworks that can be used to develop recycling interventions. The aim of this study was to demonstrate the utility of these frameworks for developing recycling interventions. 20 semistructured interviews with university building users were analyzed using the TDF and…

Improving Students' Conceptual Understanding of a Specific Content Learning: A Designed Teaching Sequence

ERIC Educational Resources Information Center

Ahmad, N. J.; Lah, Y. Che

2012-01-01

The efficacy of a teaching sequence designed for a specific content of learning of electrochemistry is described in this paper. The design of the teaching draws upon theoretical insights into perspectives on learning and empirical studies to improve the teaching of this topic. A case study involving two classes, the experimental and baseline…

Stories of Self and Science: Preservice Elementary Teachers' Identity Work through Time and across Contexts

ERIC Educational Resources Information Center

Avraamidou, Lucy

2016-01-01

Grounded in theoretical and empirical underpinnings related to identity work and figured worlds, this case study explores the nature of two preservice elementary teachers' identities for science teaching and the experiences that impacted their development through time and across contexts. The participants in this study portray a range of…

Teacher Educators' Visions of Pedagogical Training within Instrumental Higher Music Education. A Case in Finland

ERIC Educational Resources Information Center

Juntunen, Marja-Leena

2014-01-01

The purpose of this study was to examine the visions of teacher educators of instrumental pedagogy (n = 12) in higher music education regarding "good" teaching and instrumental student teacher preparation. The theoretical basis for the study was research on teachers' visions (Hammerness, 2006): teachers' own conceptions of ideal teaching…

Effects of Communities of Reflecting Peers on Student-Teacher Development--Including In-Depth Case Studies

ERIC Educational Resources Information Center

Fund, Zvia

2010-01-01

Despite continuing interest in teacher reflection and an extensive body of research on peer assessment, the interaction between these areas has not been sufficiently investigated. This study on reflection and peer feedback is part of an ongoing action research addressing the design and pedagogical model of a theoretically oriented teacher training…

We Are All Makers: A Case Study of One Suburban District's Implementation of Makerspaces

ERIC Educational Resources Information Center

Collins, Cathy E.

2017-01-01

The purpose of this study was to examine administrator, library media and IT specialist, classroom teacher and student perceptions of the impact of makerspaces, as well as to identify what stakeholders could be doing to better support student learning and engagement in makerspaces. The Diffusion of Innovation Theoretical Framework guided the…

Predicting the Adoption of E-Learning Management System: A Case of Selected Private Universities in Nigeria

ERIC Educational Resources Information Center

Nicholas-Omoregbe, Olanike Sharon; Azeta, Ambrose Agbon; Chiazor, Idowu Aigbovo; Omoregbe, Nicholas

2017-01-01

Despite the availability of studies on e-learning management system (eLMS) using information system models, its theoretical foundations have not yet captured social constructs that are peculiar to developing countries including Nigeria. This study was undertaken with the aim of investigating factors that could influence eLMS adoption in higher…

Predictors of the Acquisition and Portability of Transferable Skills: A Longitudinal Portuguese Case Study on Education

ERIC Educational Resources Information Center

Rocha, Magda

2015-01-01

The basis for this longitudinal study was to find the predictors of transferable skills acquisition and portability among university sophomore students. The method employed was the path analysis using as variables: (1) the theoretical framework of transferable skills representations (Evers and Rush in "Manag Learn" 27(4):275-300, 1996;…

Assessing the Effectiveness of the Internationalization Process in Higher Education Institutions: A Case Study of Florida International University

ERIC Educational Resources Information Center

Iuspa, Flavia Eleonora

2010-01-01

The purpose of this study was to examine a Higher Education Institution's (HEI) process of internationalization. The theoretical model developed by Van Dijk and Miejer (1997) was used to review Florida International University (FIU)'s policy, support, and implementation dimensions and determine its position on the Internationalization Cube, and…

De Facto Language Education Policy through Teachers' Attitudes and Practices: A Critical Ethnographic Study in Three Jamaican Schools

ERIC Educational Resources Information Center

Nero, Shondel J.

2014-01-01

Using Jamaica, a former British colony where Jamaican Creole (JC) is the mass vernacular but Standard Jamaican English is the official language, as an illustrative case, this critical ethnographic study in three Jamaican schools examines the theoretical and practical challenges of language education policy (LEP) development and implementation in…

Particle Interactions Mediated by Dynamical Networks: Assessment of Macroscopic Descriptions

NASA Astrophysics Data System (ADS)

Barré, J.; Carrillo, J. A.; Degond, P.; Peurichard, D.; Zatorska, E.

2018-02-01

We provide a numerical study of the macroscopic model of Barré et al. (Multiscale Model Simul, 2017, to appear) derived from an agent-based model for a system of particles interacting through a dynamical network of links. Assuming that the network remodeling process is very fast, the macroscopic model takes the form of a single aggregation-diffusion equation for the density of particles. The theoretical study of the macroscopic model gives precise criteria for the phase transitions of the steady states, and in the one-dimensional case, we show numerically that the stationary solutions of the microscopic model undergo the same phase transitions and bifurcation types as the macroscopic model. In the two-dimensional case, we show that the numerical simulations of the macroscopic model are in excellent agreement with the predicted theoretical values. This study provides a partial validation of the formal derivation of the macroscopic model from a microscopic formulation and shows that the former is a consistent approximation of an underlying particle dynamics, making it a powerful tool for the modeling of dynamical networks at a large scale.

Particle Interactions Mediated by Dynamical Networks: Assessment of Macroscopic Descriptions.

PubMed

Barré, J; Carrillo, J A; Degond, P; Peurichard, D; Zatorska, E

2018-01-01

We provide a numerical study of the macroscopic model of Barré et al. (Multiscale Model Simul, 2017, to appear) derived from an agent-based model for a system of particles interacting through a dynamical network of links. Assuming that the network remodeling process is very fast, the macroscopic model takes the form of a single aggregation-diffusion equation for the density of particles. The theoretical study of the macroscopic model gives precise criteria for the phase transitions of the steady states, and in the one-dimensional case, we show numerically that the stationary solutions of the microscopic model undergo the same phase transitions and bifurcation types as the macroscopic model. In the two-dimensional case, we show that the numerical simulations of the macroscopic model are in excellent agreement with the predicted theoretical values. This study provides a partial validation of the formal derivation of the macroscopic model from a microscopic formulation and shows that the former is a consistent approximation of an underlying particle dynamics, making it a powerful tool for the modeling of dynamical networks at a large scale.

[Application of portfolio in teaching dermatology clinic: an experience in teaching of medicine].

PubMed

de Cabalier, M E; Chalub, D M

2009-01-01

We present a learning experience conducted in the Chair of Dermatology Clinic of the Faculty of Medical Sciences, National University of Cordoba in the context of curriculum change. For comprehension,present a theoretical framework and practical from the conceptualization of the "portfolio" teaching and its role teaching and learning paradigms sustained constructivist medical education. The portfolio Teach-ing is not a collection of papers, but a coherent set of experiences led thoughtful learning between teachers and students. This resource allows to account for the "qualitative achievements" of students from their work produced, sorted and evaluated in a carefully planned sequence of experiences and case Dermatology Clinic. To introduce the teaching portfolio, the planned new student grouping shapes and a sequence of learning experiences for the construction of this resource, namely: "The development of theoretical material iconographic resources and working guidelines for students. "The clinical reasoning on a case or laboratory experience-Clinical case Discussion and bibliography. -The development of records to from observation of patients. "The study of clinical cases: diagnosis and evolution of clinical cases. Interconsultations-Registration and referrals. "The magazine room and sharing experiences. In each of these, production, tutorial feedback Team teaching and assessment tasks allowed assessment approach to learning and improving he achievements of the students to the approval of the subject.

Small traveling clusters in attractive and repulsive Hamiltonian mean-field models.

PubMed

Barré, Julien; Yamaguchi, Yoshiyuki Y

2009-03-01

Long-lasting small traveling clusters are studied in the Hamiltonian mean-field model by comparing between attractive and repulsive interactions. Nonlinear Landau damping theory predicts that a Gaussian momentum distribution on a spatially homogeneous background permits the existence of traveling clusters in the repulsive case, as in plasma systems, but not in the attractive case. Nevertheless, extending the analysis to a two-parameter family of momentum distributions of Fermi-Dirac type, we theoretically predict the existence of traveling clusters in the attractive case; these findings are confirmed by direct N -body numerical simulations. The parameter region with the traveling clusters is much reduced in the attractive case with respect to the repulsive case.

Staff Development: Initiating a Comprehensive System.

ERIC Educational Resources Information Center

Roberts, Jane M. E.; Pellerzi, Joseph H.

A case study describes how a rural local education agency (Allegany County, Maryland) developed a comprehensive staff development system. It presents some contextual and theoretical background information, summarizes the problem as perceived by key actors, and then describes a series of activities resulting in the development of the comprehensive…

The Social Weaving of a Reading Atmosphere

ERIC Educational Resources Information Center

Sequeiros, Paula

2011-01-01

This paper discusses how public library readers in Almeida Garrett, Porto, create a reading atmosphere, focusing on meanings associated with aural conditions. Through a qualitative, single case study, ethnographic and interview techniques were applied. Readers' actual practices and discourses, through a theoretical sample, and those of managers,…

Tradition, Discipline, Literary History

ERIC Educational Resources Information Center

Kargiotis, Dimitrios

2007-01-01

In its attempt to respond to changing historical realities the university has undergone significant transformations, most of which, however, have focused on teaching material, tools, methods or practices adapted to the new demands. Taking as a case study the literary disciplines, this article focuses on the theoretical, mostly implicit,…

Knowledge Transfer through a Transnational Program Partnership between Indonesian and Australian Universities

ERIC Educational Resources Information Center

Sutrisno, Agustian; Pillay, Hitendra

2015-01-01

As transnational programs are often advocated as a knowledge transfer opportunity between the partner universities, this case study investigated the knowledge transfer (KT) processes between Indonesian and Australian universities through an undergraduate transnational program partnership (TPP). An inter-organisational KT theoretical framework from…

Interprofessional Care and Collaborative Practice.

ERIC Educational Resources Information Center

Casto, R. Michael; And Others

This book provides materials for those learning about the dynamics, techniques, and potential of interprofessional collaboration in health care and human services professions. Eight case studies thread their way through most chapters to unify and illustrate the text. Part 1 addresses the theoretical framework that forms the basis for…

Applying Theory to the Design of Cultural Competency Training for Medical Students: A Case Study.

ERIC Educational Resources Information Center

Crandall, Sonia J.; George, Geeta; Marion, Gail S.; Davis, Steve

2003-01-01

Summarizes the current practice of cultural competency training within medical education and describes the design, implementation, and evaluation of a theoretically based, year-long cultural competency training course for second-year students at Wake Forest University School of Medicine. (EV)

Lean for Education

ERIC Educational Resources Information Center

LeMahieu, Paul G.; Nordstrum, Lee E.; Greco, Patricia

2017-01-01

Purpose: This paper is one of seven in this volume that aims to elaborate different approaches to quality improvement in education. It delineates a methodology called Lean for Education. Design/methodology/approach: The paper presents the origins, theoretical foundations, core concepts and a case study demonstrating an application in US education,…

"Grey" Areas and "Organized Chaos" in Emergency Response

ERIC Educational Resources Information Center

Taber, Nancy; Plumb, Donovan; Jolemore, Shawn

2008-01-01

Purpose: The purpose of this research is to explore the interaction between organizational policies and daily work practices of paramedics and firefighters within two emergency response organizations. Design/methodology/approach: Data were collected in a case study consisting of interviews, focus groups, and observations. The theoretical grounding…

Leading by Example: The Case of Leader OCB

ERIC Educational Resources Information Center

Yaffe, Tal; Kark, Ronit

2011-01-01

The importance of leading by personal example or role modeling for effective leadership has been recognized in many leadership theories. However, leaders' ability to influence group behavior through exemplary behavior has received little attention in empirical work. This study explores leading by example through theoretical development and…

Applying Theory to the Case Study Course.

ERIC Educational Resources Information Center

Kruckeberg, Dean

A chronic problem in public relations education is the fragmentation of coursework, particularly as this fragmentation impacts on the application of communication theory. Public relations textbooks presentation of theory is often fragmented and segregated in to "theoretical" chapters and "applied" chapters with little integration between the two.…

Case study of evaluations that go beyond clinical outcomes to assess quality improvement diabetes programmes using the Diabetes Evaluation Framework for Innovative National Evaluations (DEFINE).

PubMed

Paquette-Warren, Jann; Harris, Stewart B; Naqshbandi Hayward, Mariam; Tompkins, Jordan W

2016-10-01

Investments in efforts to reduce the burden of diabetes on patients and health care are critical; however, more evaluation is needed to provide evidence that informs and supports future policies and programmes. The newly developed Diabetes Evaluation Framework for Innovative National Evaluations (DEFINE) incorporates the theoretical concepts needed to facilitate the capture of critical information to guide investments, policy and programmatic decision making. The aim of the study is to assess the applicability and value of DEFINE in comprehensive real-world evaluation. Using a critical and positivist approach, this intrinsic and collective case study retrospectively examines two naturalistic evaluations to demonstrate how DEFINE could be used when conducting real-world comprehensive evaluations in health care settings. The variability between the cases and the evaluation designs are described and aligned to the DEFINE goals, steps and sub-steps. The majority of the theoretical steps of DEFINE were exemplified in both cases, although limited for knowledge translation efforts. Application of DEFINE to evaluate diverse programmes that target various chronic diseases is needed to further test the inclusivity and built-in flexibility of DEFINE and its role in encouraging more comprehensive knowledge translation. This case study shows how DEFINE could be used to structure or guide comprehensive evaluations of programmes and initiatives implemented in health care settings and support scale-up of successful innovations. Future use of the framework will continue to strengthen its value in guiding programme evaluation and informing health policy to reduce the burden of diabetes and other chronic diseases. © 2016 The Authors. Journal of Evaluation in Clinical Practice published by John Wiley & Sons, Ltd.

Case study of evaluations that go beyond clinical outcomes to assess quality improvement diabetes programmes using the Diabetes Evaluation Framework for Innovative National Evaluations (DEFINE)

PubMed Central

Harris, Stewart B.; Naqshbandi Hayward, Mariam; Tompkins, Jordan W.

2016-01-01

Abstract Rationale, aims and objectives Investments in efforts to reduce the burden of diabetes on patients and health care are critical; however, more evaluation is needed to provide evidence that informs and supports future policies and programmes. The newly developed Diabetes Evaluation Framework for Innovative National Evaluations (DEFINE) incorporates the theoretical concepts needed to facilitate the capture of critical information to guide investments, policy and programmatic decision making. The aim of the study is to assess the applicability and value of DEFINE in comprehensive real‐world evaluation. Method Using a critical and positivist approach, this intrinsic and collective case study retrospectively examines two naturalistic evaluations to demonstrate how DEFINE could be used when conducting real‐world comprehensive evaluations in health care settings. Results The variability between the cases and the evaluation designs are described and aligned to the DEFINE goals, steps and sub‐steps. The majority of the theoretical steps of DEFINE were exemplified in both cases, although limited for knowledge translation efforts. Application of DEFINE to evaluate diverse programmes that target various chronic diseases is needed to further test the inclusivity and built‐in flexibility of DEFINE and its role in encouraging more comprehensive knowledge translation. Conclusions This case study shows how DEFINE could be used to structure or guide comprehensive evaluations of programmes and initiatives implemented in health care settings and support scale‐up of successful innovations. Future use of the framework will continue to strengthen its value in guiding programme evaluation and informing health policy to reduce the burden of diabetes and other chronic diseases. PMID:26804339

Nitropyrroles, Diels-Alder reactions assisted by microwave irradiation and solvent effect. An experimental and theoretical study

NASA Astrophysics Data System (ADS)

Mancini, Pedro M. E.; Kneeteman, María N.; Cainelli, Mauro; Ormachea, Carla M.; Domingo, Luis R.

2017-11-01

The behaviors of N-tosylnitropyrroles acting as electrophilic dienophiles in polar Diels-Alder reactions joint to different dienes of increeased nucleophilicity are analyzed. The reactions were developed under microwave irradiation using toluene or protic ionic liquids (PILs) as solvents and in free solvent conditions. In all the cases explored we observed good yields in short reaction times. For these reactions, the free solvent condition and the use of protic ionic liquids as solvents offer similar results. However, the free solvent conditions favor environmental sustainability. The role of PILs in these polar Diels-Alder reactions has been theoretically studied within the Molecular Electron Density Theory.

Theoretical analysis of heat flow in horizontal ribbon growth from a melt. [silicon metal

NASA Technical Reports Server (NTRS)

Zoutendyk, J. A.

1978-01-01

A theoretical heat flow analysis for horizontalribbon growth is presented. Equations are derived relating pull speed, ribbon thickness, thermal gradient in the melt, and melt temperature for limiting cases of heat removal by radiation only and isothermal heat removal from the solid surface over the melt. Geometrical cross sections of the growth zone are shown to be triangular and nearly parabolic for the two respective cases. Theoretical pull speed for silicon ribbon 0.01 cm thick, where the loss of latent heat of fusion is by radiation to ambient temperature (300 K) only, is shown to be 1 cm/sec for horizontal growth extending 2 cm over the melt and with no heat conduction either to or from the melt. Further enhancement of ribbon growth rate by placing cooling blocks adjacent to the top surface is shown to be theoretically possible.

Electron affinity of perhalogenated benzenes: A theoretical DFT study

NASA Astrophysics Data System (ADS)

Volatron, François; Roche, Cécile

2007-10-01

The potential energy surfaces (PES) of unsubstituted and perhalogenated benzene anions ( CX6-, X = F, Cl, Br, and I) were explored by means of DFT-B3LYP calculations. In the F and Cl cases seven extrema were located and characterized. In the Br and I cases only one minimum and two extrema were found. In each case the minimum was recomputed at the CCSD(T) level. The electron affinities of C 6X 6 were calculated (ZPE included). The results obtained agree well with the experimental determinations when available. The values obtained in the X = Br and the X = I cases are expected to be valuable predictions.

Human Rights and the Excess of Identity: A Legal and Theoretical Inquiry into the Notion of Identity in Strasbourg Case Law.

PubMed

Al Tamimi, Yussef

2018-06-01

Identity is a central theme in contemporary politics, but legal academia lacks a rigorous analysis of this concept. The aim of this article is twofold: (i) firstly, it aims to reveal presumptions on identity in human rights law by mapping how the European Court of Human Rights approaches identity and (ii) secondly, it seeks to analyse these presumptions using theoretical insights on identity. By merging legal and theoretical analysis, this article contributes a reading of the Court's case law which suggests that the tension between the political and apolitical is visible as a common thread in the Court's use of identity. In case law concerning paternity, the Court appears to hold a specific view of what is presented as an unquestionable part of identity. This ostensibly pre-political notion of identity becomes untenable in cases where the nature of an identity feature, such as the headscarf, is contended or a minority has adopted a national identity that conflicts with the majoritarian national identity. The Court's approach to identity in such cases reflects a paradox that is inherent to identity; identity is personal while simultaneously constituted and shaped by overarching power mechanisms.

Report of the Plasma Physics and Environmental Perturbation Laboratory (PPEPL) working groups. Volume 3: Magnetospheric experiments working group

NASA Technical Reports Server (NTRS)

1974-01-01

A number of general studies that were proposed for the PPEPL-SHUTTLE program are considered in qualitative detail from both the theoretical and practical points of view. The selection of experimental programs was restricted to those which may be considered active as opposed to refinements of the passive observational programs done previously. It is concluded that, while these new studies were scientifically worthwhile and could be performed in principle, in most cases insufficient attention was paid to the practical details of the experiments. Several specific areas of study, stressing in particular the practical feasibility of the proposed experiments, are recommended. In addition, recommendations are made for further theoretical study, where appropriate. For Vol. 1, see N74-28169; for Vol. 2, see N74-28170.

Nonlocal approach to the analysis of the stress distribution in granular systems. I. Theoretical framework

NASA Astrophysics Data System (ADS)

Kenkre, V. M.; Scott, J. E.; Pease, E. A.; Hurd, A. J.

1998-05-01

A theoretical framework for the analysis of the stress distribution in granular materials is presented. It makes use of a transformation of the vertical spatial coordinate into a formal time variable and the subsequent study of a generally non-Markoffian, i.e., memory-possessing (nonlocal) propagation equation. Previous treatments are obtained as particular cases corresponding to, respectively, wavelike and diffusive limits of the general evolution. Calculations are presented for stress propagation in bounded and unbounded media. They can be used to obtain desired features such as a prescribed stress distribution within the compact.

Theoretical aspects of antimatter and gravity

NASA Astrophysics Data System (ADS)

Blas, Diego

2018-03-01

In this short contribution, I review the physical case of studying the gravitational properties of antimatter from a theoretical perspective. I first discuss which elements are desirable for any theory where the long-range interactions between matter and antimatter differ from those of matter with itself. Afterwards I describe the standard way to hide the effects of new forces in matter-matter interactions which still allows one to generate ponderable matter-antimatter interactions. Finally, I comment on some recent ideas and propose some possible future directions. This article is part of the Theo Murphy meeting issue `Antiproton physics in the ELENA era'.

Operational Modelling of the Aerospace Propagation Environment. Volume II

DTIC Science & Technology

1978-11-01

distributed among a deeper layer as before. 3.2 Effect of the roughness parameter z0 on the height of the PaL For both cases of labile and stable...treated as separate ones . Visibility from such an area into a neighbouring one is of practical interest only in special cases which are dealt with...Schloss Kressbach, D-7400 Tublngen, F.R.Germany Report 1978 / 6 SUMMARY This paper presents an experimental and theoretical study on atmospheric

Can Economics Provide Insights into Trust Infrastructure?

NASA Astrophysics Data System (ADS)

Vishik, Claire

Many security technologies require infrastructure for authentication, verification, and other processes. In many cases, viable and innovative security technologies are never adopted on a large scale because the necessary infrastructure is slow to emerge. Analyses of such technologies typically focus on their technical flaws, and research emphasizes innovative approaches to stronger implementation of the core features. However, an observation can be made that in many cases the success of adoption pattern depends on non-technical issues rather than technology-lack of economic incentives, difficulties in finding initial investment, inadequate government support. While a growing body of research is dedicated to economics of security and privacy in general, few theoretical studies in this area have been completed, and even fewer that look at the economics of “trust infrastructure” beyond simple “cost of ownership” models. This exploratory paper takes a look at some approaches in theoretical economics to determine if they can provide useful insights into security infrastructure technologies and architectures that have the best chance to be adopted. We attempt to discover if models used in theoretical economics can help inform technology developers of the optimal business models that offer a better chance for quick infrastructure deployment.

The Bragg gap vanishing phenomena in one-dimensional photonic crystals.

PubMed

Zhang, Hui; Chen, Xi; Li, Youquan; Fu, Yunqi; Yuan, Naichang

2009-05-11

We theoretically deduce the Bragg gap vanishing conditions in one-dimensional photonic crystals and experimentally demonstrate the m=0 band-gap vanishing phenomena at microwave frequencies. In the case of mismatched impedance, the Bragg gap will vanish as long as the discrete modes appear in photonic crystals containing dispersive materials, while for the matched impedance cases, Bragg gaps will always disappear. The experimental results and the simulations agree extremely well with the theoretical expectation.

Numerical and Experimental Case Study of Blasting Works Effect

NASA Astrophysics Data System (ADS)

Papán, Daniel; Valašková, Veronika; Drusa, Marian

2016-10-01

This article introduces the theoretical and experimental case study of dynamic monitoring of the geological environment above constructed highway tunnel. The monitored structure is in this case a very important water supply pipeline, which crosses the tunnel and was made from steel tubes with a diameter of 800 mm. The basic dynamic parameters had been monitored during blasting works, and were compared with the FEM (Finite Element Method) calculations and checked by the Slovak standard limits. A calibrated FEM model based on the experimental measurement data results was created and used in order to receive more realistic results in further predictions, time and space extrapolations. This case study was required and demanded by the general contractor company and also by the owner of water pipeline, and it was an answer of public safety evaluation of risks during tunnel construction.

On the conditions for the onset of nonlinear chirping structures in NSTX

NASA Astrophysics Data System (ADS)

Duarte, Vinicius; Podesta, Mario; Berk, Herbert; Gorelenkov, Nikolai

2015-11-01

The nonlinear dynamics of phase space structures is a topic of interest in tokamak physics in connection with fast ion loss mechanisms. The onset of phase-space holes and clumps has been theoretically shown to be associated with an explosive solution of an integro-differential, nonlocal cubic equation that governs the early mode amplitude evolution in the weakly nonlinear regime. The existence and stability of the solutions of the cubic equation have been theoretically studied as a function of Fokker-Planck coefficients for the idealized case of a single resonant point of a localized mode. From realistic computations of NSTX mode structures and resonant surfaces, we calculate effective pitch angle scattering and slowing-down (drag) collisional coefficients and analyze NSTX discharges for different cases with respect to chirping experimental observation. Those results are confronted to the theory that predicts the parameters region that allow for chirping to take place.

Modalities of Generalization Through Single Case Studies.

PubMed

Zittoun, Tania

2017-06-01

The value of case studies for theory building is still doubted in psychology. The paper argues for the importance of case studies and the possibility of generalizing from these for a specific sociocultural understanding of human development. The paper first clarifies the notion of abduction within case studies, drawing on pragmatists James and Peirce and expanding it with the work of Lewin, and argues that it is the core mechanism that allows generalization from case studies. The second section presents the possibility of generalizing from individual single case studies, for which not only the subjective perspective, but also the dynamics by which the social and cultural environment guide and enable the person's development, have to be accounted for. The third section elaborates the question of institutional case studies, where the challenge is to account both for institutional dynamics, and for persons' trajectories within; this is exemplified with an ongoing study on the process of obtaining citizenship in Switzerland. The paper briefly concludes by highlighting two possible implications of the paper, one concerning the process of theoretical reasoning, the other, the fact that sociocultural psychology could itself be seen as an institution in-the-making.

Explicit and implicit assessment of gender roles.

PubMed

Fernández, Juan; Quiroga, M Ángeles; Escorial, Sergio; Privado, Jesús

2014-05-01

Gender roles have been assessed by explicit measures and, recently, by implicit measures. In the former case, the theoretical assumptions have been questioned by empirical results. To solve this contradiction, we carried out two concatenated studies based on a relatively well-founded theoretical and empirical approach. The first study was designed to obtain a sample of genderized activities of the domestic sphere by means of an explicit assessment. Forty-two raters (22 women and 20 men, balanced on age, sex, and level of education) took part as raters. In the second study, an implicit assessment of gender roles was carried out, focusing on the response time given to the sample activities obtained from the first study. A total of 164 adults (90 women and 74 men, mean age = 43), with experience in living with a partner and balanced on age, sex, and level of education, participated. Taken together, results show that explicit and implicit assessment converge. The current social reality shows that there is still no equity in some gender roles in the domestic sphere. These consistent results show considerable theoretical and empirical robustness, due to the double implicit and explicit assessment.

Postcolonial Perspectives on Global Citizenship Education. Routledge Research in Education

ERIC Educational Resources Information Center

de Oliveira Andreotti, Vanessa, Ed.; de Souza, Lynn Mario T. M., Ed.

2011-01-01

This volume bridges the gap between contemporary theoretical debates and educational policies and practices. It applies postcolonial theory as a framework of analysis that attempts to engage with and go beyond essentialism, ethno- and euro-centrisms through a critical examination of contemporary case studies and conceptual issues. From a…

University Students' Unions: Changing Functions, a UK and Comparative Perspective

ERIC Educational Resources Information Center

Guan, Lu; Cole, Michael; Worthington, Frank

2016-01-01

In this article, we consider the functions of students' unions (SUs) through a UK case study. First, a functional classification of educational representation; wider representation; delivery of commercial services and faciliating a student community is outlined. Second, we specify a theoretical framework in terms of neo-liberalism and therapeutic…

Planned Organizational Change in Higher Education: Dashboard Indicators and Stakeholder Sensemaking--A Case Study

ERIC Educational Resources Information Center

Smulowitz, Stacy

2014-01-01

This dissertation examined the introduction and implementation of an organizational Dashboard as a planned organizational change within four educational support service departments and the senior leadership group within a large, Northeastern university. General systems theory provides a theoretical framework for conceptualizing planned…

Content Analysis of Chemistry Curricula in Germany Case Study: Chemical Reactions

ERIC Educational Resources Information Center

Timofte, Roxana S.

2015-01-01

Curriculum-assessment alignment is a well known foundation for good practice in educational assessment, for items' curricular validity purposes. Nowadays instruments are designed to measure pupils' competencies in one or more areas of competence. Sub-competence areas could be defined theoretically and statistical analysis of empirical data by…

Educational Management within a Young Offender Institution.

ERIC Educational Resources Information Center

Fryer, Winny; Fryer, Paul

1992-01-01

Examines educational theory and objectives within prisons and relates these to the real-time case study of the Young Offender Institution at Whatton, in Nottinghamshire, England. Measuring success and cost effectiveness is extremely difficult in the prison education field, and a significant gap exists between the theoretical model and everyday…

Theorising Creative Expression in Children's Participation

ERIC Educational Resources Information Center

Henderson, Patricia C.

2011-01-01

The paper suggests that phenomenology, the anthropology of the senses and of embodiment, performance theory and multi-modal pedagogies offer a rich set of theoretical ideas with which to consider children's expressive repertoires as overlooked forms of social participation and critique. Four case studies in relation to children's photography,…

Oral Storytelling and Teaching Mathematics: Pedagogical and Multicultural Perspectives

ERIC Educational Resources Information Center

Schiro, Michael Stephen

2004-01-01

This book contains two case studies of teachers telling epic oral stories to teach math to elementary and middle school students. The book also includes theoretical discussions of essential elements of oral storytelling, multicultural education, how oral storytelling can help children who have difficulty learning mathematics, and mathematical…

Work-Based Learning: A New Higher Education?

ERIC Educational Resources Information Center

Boud, David, Ed.; Solomon, Nicky, Ed.

This three-part book contains 16 chapters exploring work-based learning from a theoretical and case-study perspective in the United Kingdom. Part 1, Framing Work-based Learning, contains the following four chapters: "New Practices for New Times" (David Boud, Nicky Solomon, and Colin Symes); "Repositioning Universities and Work"…

Determining Student Competency in Field Placements: An Emerging Theoretical Model

ERIC Educational Resources Information Center

Salm, Twyla L.; Johner, Randy; Luhanga, Florence

2016-01-01

This paper describes a qualitative case study that explores how twenty-three field advisors, representing three human service professions including education, nursing, and social work, experience the process of assessment with students who are struggling to meet minimum competencies in field placements. Five themes emerged from the analysis of…

Reference Assignment: Using Language Breakdown to Choose between Theoretical Approaches

ERIC Educational Resources Information Center

Ruigendijk, Esther; Vasic, Nada; Avrutin, Sergey

2006-01-01

We report results of an experimental study with Dutch agrammatic aphasics that investigated their ability to interpret pronominal elements in transitive clauses and Exceptional Case Marking constructions (ECM). Using the obtained experimental results as a tool, we distinguish between three competing linguistic theories that aim at determining…

An Ecological Approach to the On-Line Assessment of Problem-Solving Paths: Principles and Applications.

ERIC Educational Resources Information Center

Shaw, Robert E.; And Others

1997-01-01

Proposes a theoretical framework for designing online-situated assessment tools for multimedia instructional systems. Uses a graphic method based on ecological psychology to monitor student performance through a learning activity. Explores the method's feasibility in case studies describing instructional systems teaching critical-thinking and…

Examining English Language Teachers' TPACK in Oral Communication Skills Teaching

ERIC Educational Resources Information Center

Debbagh, Mohammed; Jones, W. Monty

2018-01-01

This case study utilized the Technological Pedagogical Content Knowledge (TPACK) theoretical framework (Mishra & Koehler, 2006) as a lens to examine the instructional strategies of four English as a second language (ESL) teachers and their rationales for incorporating technology into their instructional practices in teaching oral communication…

Sustaining Innovation: Developing an Instructional Technology Assessment Process

ERIC Educational Resources Information Center

Carmo, Monica Cristina

2013-01-01

This case study developed an instructional technology assessment process for the Gevirtz Graduate School of Education (GGSE). The theoretical framework of Adelman and Taylor (2001) guided the development of this instructional technology assessment process and the tools to aid in its facilitation. GGSE faculty, staff, and graduate students…

Confronting "Difficult Knowledge": Critical Aesthetics and War in the Classroom

ERIC Educational Resources Information Center

Heybach Vivirito, Jessica A.

2012-01-01

This qualitative multi-site case study explores critical aesthetic experiences in teacher education classrooms, and advocates for the inclusion of theoretical and practical knowledge of "difficult knowledge," visual culture, and critical aesthetics in the classroom. Social reality consists of a perpetual stream of tragic and horrific…

What Physicians Reason about during Admission Case Review

ERIC Educational Resources Information Center

Juma, Salina; Goldszmidt, Mark

2017-01-01

Research suggests that physicians perform multiple reasoning tasks beyond diagnosis during patient review. However, these remain largely theoretical. The purpose of this study was to explore reasoning tasks in clinical practice during patient admission review. The authors used a constant comparative approach--an iterative and inductive process of…

Perceptions of Absenteeism and Diminished Engagement among Instructors and Nonlicensed Students in Medical Assistant Programs

ERIC Educational Resources Information Center

Miller, Russell

2012-01-01

Adult nonlicensed students can experience diminished engagement and increased absenteeism while attempting to complete medical assistant programs. The purpose of this qualitative, multisite narrative case study was to explore the perceptions, meanings, and interpretations of instructors and students. The theoretical foundation focused on the…

Moving beyond Social Exclusion through Dialogue

ERIC Educational Resources Information Center

Aubert, Adriana

2011-01-01

The Dialogic Inclusion Contract (DIC) makes it possible to build a dialogue between the international scientific community and the knowledge derived from the experiences of social agents. This article presents the theoretical underpinnings and the process of developing and implementing the DIC. A case study of a primary school in a disadvantaged…

Sustaining Professional Learning Communities: Case Studies

ERIC Educational Resources Information Center

Hipp, Kristine; Huffman, Jane; Pankake, Anita; Olivier, Dianne

2008-01-01

The purpose is to document the ongoing development of two schools in becoming professional learning communities and the effects of meaningful collaboration on teacher learning. The question that guides this research is: How does a school become a sustainable professional learning community? The theoretical framework is based on the work of Senge,…

Morphological Awareness Intervention in School-Age Children with Language and Literacy Deficits: A Case Study

ERIC Educational Resources Information Center

Wolter, Julie A.; Green, Laura

2013-01-01

This article highlights the clinical application of morphological awareness intervention to facilitate phonological, vocabulary, reading, and spelling success in children with language and literacy deficits. First, the research-based benefits of morphological awareness instruction are reviewed and current theoretical and research-based…

Six Sigma in Education

ERIC Educational Resources Information Center

LeMahieu, Paul G.; Nordstrum, Lee E.; Cudney, Elizabeth A.

2017-01-01

Purpose: This paper is one of seven in this volume that aims to elaborate different approaches to quality improvement in education. It delineates a methodology called Six Sigma. Design/methodology/approach: The paper presents the origins, theoretical foundations, core principles and a case study demonstrating an application of Six Sigma in a…

Positive Deviance: Learning from Positive Anomalies

ERIC Educational Resources Information Center

LeMahieu, Paul G.; Nordstrum, Lee E.; Gale, Dick

2017-01-01

Purpose: This paper is one of seven in this volume, each elaborating different approaches to quality improvement in education. The purpose of this paper is to delineate a methodology called positive deviance. Design/methodology/approach: The paper presents the origins, theoretical foundations, core principles and a case study demonstrating an…

Different Children's Perspectives on Their Learning Environment

ERIC Educational Resources Information Center

Sandberg, Gunilla

2017-01-01

This article reports and discusses findings from an ethnographic case study, aiming to gain a deeper understanding of how different children perceive their learning environment in the first grade of primary school, with regard to social as well as academic aspects. The theoretical framework is based on an interactional perspective, where…

Composing across Modes: A Comparative Analysis of Adolescents' Multimodal Composing Processes

ERIC Educational Resources Information Center

Smith, Blaine E.

2017-01-01

Although the shift from page to screen has dramatically redefined conceptions of writing, very little is known about how youth compose with multiple modes in digital environments. Integrating multimodality and multiliteracies theoretical frameworks, this comparative case study examined how urban twelfth-grade students collaboratively composed…

The Teacher Leadership Process: Attempting Change within Embedded Systems

ERIC Educational Resources Information Center

Cooper, Kristy S.; Stanulis, Randi N.; Brondyk, Susan K.; Hamilton, Erica R.; Macaluso, Michael; Meier, Jessica A.

2016-01-01

This embedded case study examines the leadership practices of eleven teacher leaders in three urban schools to identify how these teacher leaders attempt to change the teaching practice of their colleagues while working as professional learning community leaders and as mentors for new teachers. Using a theoretical framework integrating complex…

Researching "With", Not "On": Engaging Marginalised Learners in the Research Process

ERIC Educational Resources Information Center

Atkins, Liz

2013-01-01

This paper discusses practical and methodological issues arising from a case study exploring the hopes, aspirations and learning identities of three groups of students undertaking low-level broad vocational programmes in two English general further education colleges. Working within a social justice theoretical framework the paper outlines the…

Cybersecurity Strategy in Developing Nations: A Jamaica Case Study

ERIC Educational Resources Information Center

Newmeyer, Kevin Patrick

2014-01-01

Developing nations have been slow to develop and implement cybersecurity strategies despite a growing threat to governance and public security arising from an increased dependency on Internet-connected systems in the developing world and rising cybercrime. Using a neorealist theoretical framework that draws from Gilpin and Waltz, this qualitative…

Undergraduates in a Sustainability Semester: Models of Social Change for Sustainability

ERIC Educational Resources Information Center

Miller, Hannah K.

2016-01-01

Interdisciplinary sustainability programs are emerging globally, but little is known about the learning in these educational contexts. This qualitative case study examined undergraduates' experience in a Sustainability Semester, using the agency/structure dialectic as a theoretical lens. Before the semester, students' models of change for…

Academic Identities and University Faculty Responses to New Managerialist Reforms: Experiences from China

ERIC Educational Resources Information Center

Huang, Yating; Pang, Sun-Keung; Yu, Shulin

2018-01-01

Chinese universities are being continually subjected to new managerial practices and technologies that have fundamental consequences on the university faculty's academic life. Within a predominantly communitarian theoretical framework of academic identity, this qualitative case study draws upon interviews with 25 academics in Mainland China to…

Reclaiming Power and Identity: Marginalized Students' Experiences of Service-Learning

ERIC Educational Resources Information Center

Winans-Solis, Jaime

2014-01-01

This qualitative case study investigates how service-learning may enable self-direction and the development of a critical consciousness for marginalized high school students by exploring the dynamics of service-learning through a theoretical framework of critical theory. Service-learning is theorized to counter the oppressive nature of schooling…

The SEURAT-1 approach towards animal free human safety assessment.

PubMed

Gocht, Tilman; Berggren, Elisabet; Ahr, Hans Jürgen; Cotgreave, Ian; Cronin, Mark T D; Daston, George; Hardy, Barry; Heinzle, Elmar; Hescheler, Jürgen; Knight, Derek J; Mahony, Catherine; Peschanski, Marc; Schwarz, Michael; Thomas, Russell S; Verfaillie, Catherine; White, Andrew; Whelan, Maurice

2015-01-01

SEURAT-1 is a European public-private research consortium that is working towards animal-free testing of chemical compounds and the highest level of consumer protection. A research strategy was formulated based on the guiding principle to adopt a toxicological mode-of-action framework to describe how any substance may adversely affect human health.The proof of the initiative will be in demonstrating the applicability of the concepts on which SEURAT-1 is built on three levels:(i) Theoretical prototypes for adverse outcome pathways are formulated based on knowledge already available in the scientific literature on investigating the toxicological mode-of-actions leading to adverse outcomes (addressing mainly liver toxicity);(ii)adverse outcome pathway descriptions are used as a guide for the formulation of case studies to further elucidate the theoretical model and to develop integrated testing strategies for the prediction of certain toxicological effects (i.e., those related to the adverse outcome pathway descriptions);(iii) further case studies target the application of knowledge gained within SEURAT-1 in the context of safety assessment. The ultimate goal would be to perform ab initio predictions based on a complete understanding of toxicological mechanisms. In the near-term, it is more realistic that data from innovative testing methods will support read-across arguments. Both scenarios are addressed with case studies for improved safety assessment. A conceptual framework for a rational integrated assessment strategy emerged from designing the case studies and is discussed in the context of international developments focusing on alternative approaches for evaluating chemicals using the new 21st century tools for toxicity testing.

The Role of Collaborative Learning on Training and Development Practices within the Australian Men's Shed Movement: A Study of Five Men's Sheds

ERIC Educational Resources Information Center

Cavanagh, Jillian; Southcombe, Amie; Bartram, Tim

2014-01-01

This study examines the role and impact of collaborative learning on training and development practices in Australian Men's Sheds. We use a case study approach, underpinned by Peters and Armstrong's theoretical framework of collaborative learning in adult education, to investigate five Men's Sheds. Semi-structured interviews were carried out with…

Explorations of Tenth-Grade STS[E] Curricula across Three Provincial Political Landscapes

NASA Astrophysics Data System (ADS)

Phillips, Christina Ann

This thesis focuses on explorations of science, technology, society and the environment (i.e., STS[E]) outcomes/expectations in tenth-grade level science curricula across three Canadian provinces (i.e., Alberta, Manitoba & Ontario) with distinctive provincial political environments at the time of curriculum construction and/or implementation. Document analysis, discourse analysis and a range of theoretical frameworks (i.e., Levinson, 2010; Pedretti & Nazir, 2011 & Krathwohl, 2002) were used to aid in explorations of STS[E] curriculum segments and discourses in each provincial region. More detailed analysis and thematic exploration is presented for each unit associated with climate change as some interesting patterns emerged following initial analysis. My findings are presented as three comparative case studies and represent a small and original contribution to the large body of scholarly research devoted to studies of STS[E] education, where each province represents a unique case that has been explored regarding some aspects the STS[E] curriculum outcomes/expectations and general political culture as well as some other theoretical factors. Findings from this study indicate that Alberta's STS[E] outcomes may be related to Levinson's (2010) 'deliberative' citizenship focus. The following currents from Pedretti and Nazir (2011) appear to be emphasized: logical reasoning, historical, application & design and socio-cultural aligned outcomes when STS[E] is considered as an entity separate from the Alberta curriculum combination of STS and Knowledge. Ontario's STS[E] expectations may align with Levinson's (2010) 'deliberative' or in some select cases a 'deliberative'/'praxis' framework category with some emphasis related to logical reasoning and socio-cultural awareness (Pedretti & Nazir, 2011) in their STS[E] curriculum. The Manitoba STS[E] outcomes may be aligned with a more 'deliberative' approach with some associations that could intersect with the framework categories of 'praxis' or possibly 'dissent and conflict' (Levinson, 2010) and the logical reasoning, socio-cultural and socio-ecojustice currents (Pedretti & Nazir, 2011). General provincial political culture seems to play a limited role in the STS[E] outcomes/expectations as the provinces studied here all tend to align with Levinson's (2010) deliberative citizenship stance (i.e., to varying degrees), with some caveats as explored throughout these cases. A chapter on cross-case analysis follows the three central cases and focuses on the following categories that emerged from this research: STS[E] ontology; STS[E] & citizenship and socio-economic thematic explorations. The final chapter of this thesis focuses on some additional factors and theoretical explorations that may shape STS[E] curricula such as cultural-geographic considerations; educational-political interactions during curriculum construction processes and possible influences from academic scientists. This chapter also provides some recommendations for curriculum development as aligned with case study approaches and provides insights regarding possibilities for future research.

Finite-data-size study on practical universal blind quantum computation

NASA Astrophysics Data System (ADS)

Zhao, Qiang; Li, Qiong

2018-07-01

The universal blind quantum computation with weak coherent pulses protocol is a practical scheme to allow a client to delegate a computation to a remote server while the computation hidden. However, in the practical protocol, a finite data size will influence the preparation efficiency in the remote blind qubit state preparation (RBSP). In this paper, a modified RBSP protocol with two decoy states is studied in the finite data size. The issue of its statistical fluctuations is analyzed thoroughly. The theoretical analysis and simulation results show that two-decoy-state case with statistical fluctuation is closer to the asymptotic case than the one-decoy-state case with statistical fluctuation. Particularly, the two-decoy-state protocol can achieve a longer communication distance than the one-decoy-state case in this statistical fluctuation situation.

Toward Transformative Learning: An Inquiry into the Work and Subsequent Learning Experiences of Individuals Who Assisted Hurricane Katrina Evacuees

ERIC Educational Resources Information Center

Ficks, David B., II.

2010-01-01

The purpose of this multi-case study was to examine in depth the personal and learning experiences of helping professionals and volunteer helpers when challenged to assist adult Hurricane Katrina evacuees and victims in the aftermath of the disaster. The study contributes theoretically, practically and substantively to the adult education field.…

Being Together: Factors That Unintentionally Undermine Motivation in Co-Located Online Learning Environments

ERIC Educational Resources Information Center

Hartnett, Maggie; St. George, Alison; Dron, Jon

2011-01-01

This paper reports on one aspect of a larger case study that explores the nature of motivation to learn in an online distance environment. The study adopts self-determination theory (SDT) as a theoretical framework and focuses particularly on the underlying concepts of autonomy and competence. These are used to investigate ways in which certain…

The Academisation of Popular Music in Higher Music Education: The Case of Norway

ERIC Educational Resources Information Center

Dyndahl, Petter; Karlsen, Sidsel; Nielsen, Siw Graabraek; Skårberg, Odd

2017-01-01

With a hundred years (1912-2012) of Norwegian master's and doctoral theses written within the field of music as a backdrop, this article reports from an extensive study of the academisation of popular music in higher music education and research in Norway. Theoretically, the study builds on the sociology of culture and education in the tradition…

Can Interactive Web-Based CAD Tools Improve the Learning of Engineering Drawing? A Case Study

ERIC Educational Resources Information Center

Pando Cerra, Pablo; Suárez González, Jesús M.; Busto Parra, Bernardo; Rodríguez Ortiz, Diana; Álvarez Peñín, Pedro I.

2014-01-01

Many current Web-based learning environments facilitate the theoretical teaching of a subject but this may not be sufficient for those disciplines that require a significant use of graphic mechanisms to resolve problems. This research study looks at the use of an environment that can help students learn engineering drawing with Web-based CAD…

Students' Perceptions on Environmental Management of HEIs and the Role of Social Capital: A Case Study in the University of the Aegean

ERIC Educational Resources Information Center

Jones, Nikoleta; Roumeliotis, Spiridon; Iosifides, Theodoros; Hatziantoniou, Maria; Sfakianaki, Eleni; Tsigianni, Eleni; Thivaiou, Kalliopi; Biliraki, Athina; Evaggelinos, Kostas

2013-01-01

Purpose: The aim of the present study is to contribute to the discussion introducing the concept of social capital as a significant parameter influencing students' perceptions concerning greening initiatives in HEIs. Design/methodology/approach: A theoretical analysis is presented concerning the possible links of social capital components with…

Teachers' Development of Professional Knowledge through Action Research and the Facilitation of This by Teacher Educators

ERIC Educational Resources Information Center

Ponte, Petra; Ax, Jan; Beijaard, Douwe; Wubbels, Theo

2004-01-01

This article describes the design and results of a descriptive and explorative case study into the development of professional knowledge by teachers through action research and the facilitation of this by teacher educators. The theoretical framework of the study links the Anglo-Saxon Action Research tradition and the German "Allgemeine Didaktik."…

Teaching the Writing Methods Course: A Multiple Case Study of Teachers' Professional Journeys, Teaching Contexts, Theoretical Frames, and Courses

ERIC Educational Resources Information Center

Sovis, Kristin A. K.

2014-01-01

This study, situated within the fields of English education and writing teacher education, illustrates not only "what" is happening in writing methods courses but why in its examination of writing methods courses and instructor influences. The writing methods course is identified by English educators and writing teacher educators as…

Learning to Appreciate At-Risk Students: Challenging the Beliefs and Attitudes of Teachers and Administrators

ERIC Educational Resources Information Center

Calabrese, Raymond L.; Hummel, Crystal; San Martin, Teresa

2007-01-01

Purpose: The purpose of this paper is to examine the issue of at-risk students in a rural district in Midwestern USA. Design/methodology/approach: This field-based research study used a qualitative embedded case study of a middle and high school informed by an appreciative inquiry theoretical research perspective to identify a positive core of…

The Transformation of Ergonomic Affordances into Cultural Affordances: The Case of the Alnuset System

ERIC Educational Resources Information Center

Chiappini, Giampaolo

2012-01-01

Is it possible to study the ergonomic affordances offered by a system designed for educational aims and their transformation into cultural affordances? To this purpose, what references can we adopt? This work describes the theoretical framework used to realise this study referring to AlNuSet, a system realised within the EC ReMath project to…

Kicking the Habitus: Power, Culture and Pedagogy in the Secondary School Music Curriculum

ERIC Educational Resources Information Center

Wright, Ruth

2008-01-01

Within a theoretical framework drawn from sociologists of education Bourdieu and Bernstein, this paper will examine some of the findings of an ethnographic case study conducted with a secondary school music teacher and one class of her pupils in Wales. This teacher attracted 25% of Year 10 (14-year-old) pupils to study music as an optional subject…

Mathematical Problem Solving with Technology: The Techno-Mathematical Fluency of a Student-with-GeoGebra

ERIC Educational Resources Information Center

Jacinto, Hélia; Carreira, Susana

2017-01-01

This study offers a view on students' technology-based problem solving activity through the lens of a theoretical model which accounts for the relationship between mathematical and technological knowledge in successful problem solving. This study takes a qualitative approach building on the work of a 13-year-old girl as an exemplary case of the…

A Sociocultural Reading of Reform in Science Teaching in a Secondary Biology Class

ERIC Educational Resources Information Center

Barma, Sylvie

2011-01-01

Adopting activity theory as a theoretical and methodological framework, this case study illustrates how a teaching and learning situation is planned and implemented over a series of nine 75-min biology classes by a high school science teacher in the context of pedagogical reform. The object of this study emerges within a favourable context of…

Linking Theory to Practice: A Case Study of Pupils' Course Work on Freshwater Pollution

ERIC Educational Resources Information Center

Osterlind, Karolina; Hallden, Ola

2007-01-01

The paper reports on a study of five pupils' (13-14 years old) learning about freshwater pollution and related theoretical concepts such as drainage basin and water pollution. Much of the instruction is devoted to fieldwork conducted at a polluted lake and other practical activities designed to promote the pupils' understanding of the central…

A New Model of Educational Innovation: Exploring the Nexus of Organizational Learning, Distributed Leadership, and Digital Technologies

ERIC Educational Resources Information Center

Rikkerink, Marleen; Verbeeten, Henk; Simons, Robert-Jan; Ritzen, Henk

2016-01-01

This study presents the development process of a new model of educational innovation, that involves the use of digital technologies. The model is based on a broad theoretical framework together with research involving this long-term case study. The backbone of the model consists of a fundamental revision of a multi-level Organizational Learning…

Estimation Methods for Non-Homogeneous Regression - Minimum CRPS vs Maximum Likelihood

NASA Astrophysics Data System (ADS)

Gebetsberger, Manuel; Messner, Jakob W.; Mayr, Georg J.; Zeileis, Achim

2017-04-01

Non-homogeneous regression models are widely used to statistically post-process numerical weather prediction models. Such regression models correct for errors in mean and variance and are capable to forecast a full probability distribution. In order to estimate the corresponding regression coefficients, CRPS minimization is performed in many meteorological post-processing studies since the last decade. In contrast to maximum likelihood estimation, CRPS minimization is claimed to yield more calibrated forecasts. Theoretically, both scoring rules used as an optimization score should be able to locate a similar and unknown optimum. Discrepancies might result from a wrong distributional assumption of the observed quantity. To address this theoretical concept, this study compares maximum likelihood and minimum CRPS estimation for different distributional assumptions. First, a synthetic case study shows that, for an appropriate distributional assumption, both estimation methods yield to similar regression coefficients. The log-likelihood estimator is slightly more efficient. A real world case study for surface temperature forecasts at different sites in Europe confirms these results but shows that surface temperature does not always follow the classical assumption of a Gaussian distribution. KEYWORDS: ensemble post-processing, maximum likelihood estimation, CRPS minimization, probabilistic temperature forecasting, distributional regression models

[Everyday life and solidarity in north-east German rural communities - first qualitative results of the Rural Health Study].

PubMed

Nebelung, C; Forkel, J A; Elkeles, T

2010-03-01

There have been increasing discussions in the health sciences in recent years about socio-spatial influences on health activities. The starting point has been the growing territorial inequality in spatial development resources, which has an effect on the participatory chances of people in structurally weak regions. The concept of "peripherisation" is used to describe this change. Empirical investigations of socio-spatial resources at the local level are rare, because the theoretical preconditions have not been elaborated sufficiently for the theoretical modelling to be recognised for hypothesis-based empirical investigations. At the centre of this theorisation are analyses of the "social capital" of every-day actions. As part of the Rural Health Study 2008 at the University of Applied Science Neubrandenburg (involving a longitudinal analysis with quantitative surveys in 14 rural communities in north-eastern Germany 1973, 1994, 2008), a qualitative approach was also adopted with case and community studies. The first results are compared with the state of the literature. Case studies are presented showing strategies for adaptation and improvement of the individual's situation, and also the daily solidarity of people in villages. Development potentials are outlined. Georg Thieme Verlag KG Stuttgart. New York.

Life cycle assessment of pyrolysis, gasification and incineration waste-to-energy technologies: Theoretical analysis and case study of commercial plants.

PubMed

Dong, Jun; Tang, Yuanjun; Nzihou, Ange; Chi, Yong; Weiss-Hortala, Elsa; Ni, Mingjiang

2018-06-01

Municipal solid waste (MSW) pyrolysis and gasification are in development, stimulated by a more sustainable waste-to-energy (WtE) option. Since comprehensive comparisons of the existing WtE technologies are fairly rare, this study aims to conduct a life cycle assessment (LCA) using two sets of data: theoretical analysis, and case studies of large-scale commercial plants. Seven systems involving thermal conversion (pyrolysis, gasification, incineration) and energy utilization (steam cycle, gas turbine/combined cycle, internal combustion engine) are modeled. Theoretical analysis results show that pyrolysis and gasification, in particular coupled with a gas turbine/combined cycle, have the potential to lessen the environmental loadings. The benefits derive from an improved energy efficiency leading to less fossil-based energy consumption, and the reduced process emissions by syngas combustion. Comparison among the four operating plants (incineration, pyrolysis, gasification, gasification-melting) confirms a preferable performance of the gasification plant attributed to syngas cleaning. The modern incineration is superior over pyrolysis and gasification-melting at present, due to the effectiveness of modern flue gas cleaning, use of combined heat and power (CHP) cycle, and ash recycling. The sensitivity analysis highlights a crucial role of the plant efficiency and pyrolysis char land utilization. The study indicates that the heterogeneity of MSW and syngas purification technologies are the most relevant impediments for the current pyrolysis/gasification-based WtE. Potential development should incorporate into all process aspects to boost the energy efficiency, improve incoming waste quality, and achieve efficient residues management. Copyright © 2018 Elsevier B.V. All rights reserved.

Forensic case formulation: theoretical, ethical and practical issues.

PubMed

Davies, Jason; Black, Susie; Bentley, Natalie; Nagi, Claire

2013-10-01

Forensic case formulation, of increasing interest to practitioners and researchers raises many ethical, theoretical and practical issues for them. Systemic, contextual and individual factors which need to be considered include the multitude of staff often involved with any one individual, the pressure to 'get it right' because of the range of risk implications that are associated with individuals within forensic mental health settings, and individual parameters, for example reluctance to be engaged with services. Copyright © 2013 John Wiley & Sons, Ltd.

A monopole model for annihilation line emission from the Galactic center

NASA Astrophysics Data System (ADS)

Wang, D. Y.; Peng, Q. H.

Two traditional theoretical interpretations of the observed plasmapause are compared, namely, the plasmapause as: (1) the boundary between closed flux tubes that have been in the inner magnetosphere for several days and those that have recently drifted in from the magnetotail or (2) the last closed electric equipotential. Although the two interpretations become equivalent in the case where the electric-field pattern is steady for several days, interpretation 1 seems theoretically more secure for typical magnetospheric conditions. The results of old theoretical studies of the effects of time variations in the electric-field pattern on the shape of the plasmapause are reviewed briefly. The formulation of the present version of the Rice Convection Model is also reviewed. Preliminary results of recent computations of quiet-time electric fields, carried out with this model, are presented and discussed.

Travel-time sensitivity kernels in long-range propagation.

PubMed

Skarsoulis, E K; Cornuelle, B D; Dzieciuch, M A

2009-11-01

Wave-theoretic travel-time sensitivity kernels (TSKs) are calculated in two-dimensional (2D) and three-dimensional (3D) environments and their behavior with increasing propagation range is studied and compared to that of ray-theoretic TSKs and corresponding Fresnel-volumes. The differences between the 2D and 3D TSKs average out when horizontal or cross-range marginals are considered, which indicates that they are not important in the case of range-independent sound-speed perturbations or perturbations of large scale compared to the lateral TSK extent. With increasing range, the wave-theoretic TSKs expand in the horizontal cross-range direction, their cross-range extent being comparable to that of the corresponding free-space Fresnel zone, whereas they remain bounded in the vertical. Vertical travel-time sensitivity kernels (VTSKs)-one-dimensional kernels describing the effect of horizontally uniform sound-speed changes on travel-times-are calculated analytically using a perturbation approach, and also numerically, as horizontal marginals of the corresponding TSKs. Good agreement between analytical and numerical VTSKs, as well as between 2D and 3D VTSKs, is found. As an alternative method to obtain wave-theoretic sensitivity kernels, the parabolic approximation is used; the resulting TSKs and VTSKs are in good agreement with normal-mode results. With increasing range, the wave-theoretic VTSKs approach the corresponding ray-theoretic sensitivity kernels.

Linking public relations processes and organizational effectiveness at a state health department.

PubMed

Wise, Kurt

2003-01-01

This qualitative case study explored a state health department's relationships with strategic constituencies from a public relations perspective. The relationships were explored within the theoretical framework of the Excellence Theory, the dominant paradigm in public research. Findings indicate application of the Excellence Theory has the potential to increase organizational effectiveness at public health entities. With respect to the case investigated, findings indicate that the state health department could increase its organizational effectiveness through the adoption of recommendations based on the Excellence Theory.

Achieving quantum precision limit in adaptive qubit state tomography

NASA Astrophysics Data System (ADS)

Hou, Zhibo; Zhu, Huangjun; Xiang, Guo-Yong; Li, Chuan-Feng; Guo, Guang-Can

2016-02-01

The precision limit in quantum state tomography is of great interest not only to practical applications but also to foundational studies. However, little is known about this subject in the multiparameter setting even theoretically due to the subtle information trade-off among incompatible observables. In the case of a qubit, the theoretic precision limit was determined by Hayashi as well as Gill and Massar, but attaining the precision limit in experiments has remained a challenging task. Here we report the first experiment that achieves this precision limit in adaptive quantum state tomography on optical polarisation qubits. The two-step adaptive strategy used in our experiment is very easy to implement in practice. Yet it is surprisingly powerful in optimising most figures of merit of practical interest. Our study may have significant implications for multiparameter quantum estimation problems, such as quantum metrology. Meanwhile, it may promote our understanding about the complementarity principle and uncertainty relations from the information theoretic perspective.

Surface Segregation in Multicomponent Systems: Modeling of Surface Alloys and Alloy Surfaces

NASA Technical Reports Server (NTRS)

Bozzolo, Guillermo; Ferrante, John; Noebe, Ronald D.; Good, Brian; Honecy, Frank S.; Abel, Phillip

1999-01-01

The study of surface segregation, although of great technological importance, has been largely restricted to experimental work due to limitations associated with theoretical methods. However, recent improvements in both first-particle and semi-empirical methods are opening, the doors to an array of new possibilities for surface scientists. We apply one of these techniques, the Bozzolo, Ferrante and Smith (BFS) method for alloys, which is particularly suitable for complex systems, to several aspects of the computational modeling of surfaces and segregation, including alloy surface segregation, structure and composition of alloy surfaces, and the formation of surface alloys. We conclude with the study of complex NiAl-based binary, ternary and quaternary thin films (with Ti, Cr and Cu additions to NiAl). Differences and similarities between bulk and surface compositions are discussed, illustrated by the results of Monte Carlo simulations. For some binary and ternary cases, the theoretical predictions are compared to experimental results, highlighting the accuracy and value of this developing theoretical tool.

Fitness Landscapes of Functional RNAs.

PubMed

Kun, Ádám; Szathmáry, Eörs

2015-08-21

The notion of fitness landscapes, a map between genotype and fitness, was proposed more than 80 years ago. For most of this time data was only available for a few alleles, and thus we had only a restricted view of the whole fitness landscape. Recently, advances in genetics and molecular biology allow a more detailed view of them. Here we review experimental and theoretical studies of fitness landscapes of functional RNAs, especially aptamers and ribozymes. We find that RNA structures can be divided into critical structures, connecting structures, neutral structures and forbidden structures. Such characterisation, coupled with theoretical sequence-to-structure predictions, allows us to construct the whole fitness landscape. Fitness landscapes then can be used to study evolution, and in our case the development of the RNA world.

Rational design of new electrolyte materials for electrochemical double layer capacitors

NASA Astrophysics Data System (ADS)

Schütter, Christoph; Husch, Tamara; Viswanathan, Venkatasubramanian; Passerini, Stefano; Balducci, Andrea; Korth, Martin

2016-09-01

The development of new electrolytes is a centerpiece of many strategies to improve electrochemical double layer capacitor (EDLC) devices. We present here a computational screening-based rational design approach to find new electrolyte materials. As an example application, the known chemical space of almost 70 million compounds is investigated in search of electrochemically more stable solvents. Cyano esters are identified as especially promising new compound class. Theoretical predictions are validated with subsequent experimental studies on a selected case. These studies show that based on theoretical predictions only, a previously untested, but very well performing compound class was identified. We thus find that our rational design strategy is indeed able to successfully identify completely new materials with substantially improved properties.

Valley-orbit splitting in doped nanocrystalline silicon: k•p calculations

NASA Astrophysics Data System (ADS)

Belyakov, Vladimir A.; Burdov, Vladimir A.

2007-07-01

The valley-orbit splitting in silicon quantum dots with shallow donors has been theoretically studied. In particular, the chemical-shift calculation was carried out within the frames of k•p approximation for single- and many-donor cases. For both cases, the great value of the chemical shift has been obtained compared to its bulk value. Such increase of the chemical shift becomes possible due to the quantum confinement effect in a dot. It is shown for the single-donor case that the level splitting and chemical shift strongly depend on the dot radius and donor position inside the nanocrystal. In the many-donor case, the chemical shift is almost proportional to the number of donors.

Border and surface tracing--theoretical foundations.

PubMed

Brimkov, Valentin E; Klette, Reinhard

2008-04-01

In this paper we define and study digital manifolds of arbitrary dimension, and provide (in particular)a general theoretical basis for curve or surface tracing in picture analysis. The studies involve properties such as one-dimensionality of digital curves and (n-1)-dimensionality of digital hypersurfaces that makes them discrete analogs of corresponding notions in continuous topology. The presented approach is fully based on the concept of adjacency relation and complements the concept of dimension as common in combinatorial topology. This work appears to be the first one on digital manifolds based ona graph-theoretical definition of dimension. In particular, in the n-dimensional digital space, a digital curve is a one-dimensional object and a digital hypersurface is an (n-1)-dimensional object, as it is in the case of curves and hypersurfaces in the Euclidean space. Relying on the obtained properties of digital hypersurfaces, we propose a uniform approach for studying good pairs defined by separations and obtain a classification of good pairs in arbitrary dimension. We also discuss possible applications of the presented definitions and results.

Improper ferroelectricity: A theoretical and experimental investigation

NASA Astrophysics Data System (ADS)

Hardy, J. R.; Ullman, F. G.

1984-02-01

A combined theoretical and experimental study has been made of the origins and properties of the improper ferroelectricity associated with structural modulations of non-zero wavelengths. Two classes of materials have been studied: rare earth molybdates (specifically, gadolinium molybdate: GMO), and potassium selenate and its isomorphs. In the former, the modulation is produced by a zone boundary phonon instability, and in the latter by the instability of a phonon of wave vector approximately two-thirds of the way to the zone-boundary. In the second case the initial result is a modulated structure whose repeat distance is not a rational multiple of the basic lattice repeat distance. This result is a modulated polarization which, when the basic modulation locks in to a rational multiple of the lattice spacing, becomes uniform, and improper ferroelectricity results. The origins of these effects have been elucidated by theoretical studies, initially semi-empirical, but subsequently from first-principles. These complemented the experimental work, which primarily used inelastic light scattering, uniaxial stress, and hydrostatic pressure, to probe the balance between the interionic forces through the effects on the phonons and dielectric properties.

Theoretical Perspectives on Budget Reform. ASHE 1984 Annual Meeting Paper.

ERIC Educational Resources Information Center

Van de Water, Gordon

Two case studies of states that illustrate innovations in higher education budgeting are presented, based on a project of the Education Commission of the States. The two states, Colorado and Minnesota, took different approaches. In Colorado, the impetus for change came from key legislative members interested in providing greater autonomy to the…

Bayesian Learning and the Psychology of Rule Induction

ERIC Educational Resources Information Center

Endress, Ansgar D.

2013-01-01

In recent years, Bayesian learning models have been applied to an increasing variety of domains. While such models have been criticized on theoretical grounds, the underlying assumptions and predictions are rarely made concrete and tested experimentally. Here, I use Frank and Tenenbaum's (2011) Bayesian model of rule-learning as a case study to…

Ties That Do Not Bind: Musings on the Specious Relevance of Academic Research.

ERIC Educational Resources Information Center

Bolton, Michael J.; Stolcis, Gregory B.

2003-01-01

Discusses the gap between academic research and practice in public administration and argues that it can be traced to conflicts such as theoretical vs. pragmatic knowledge, data-supported vs. logic-driven information, scientific method vs. case studies, academic vs. practitioner journals, and tenure vs. organizational effectiveness. Explores…

Integration: Dirty Word or Golden Key?

ERIC Educational Resources Information Center

Kerry, Trevor

2007-01-01

This article examines the notion of integrated studies as a way of organising curriculum in schools. Drawing on the insights of educational philosophy, curriculum theory and learning theory it establishes the soundness of a theoretical case for integration. It examines what this view means for the art and science of teaching, and notes examples of…

A Case Study of the Land of Enchantment Teacher Quality Partnership for Aspiring School Administrators

ERIC Educational Resources Information Center

Mizell, Kimberly

2013-01-01

What are the considerations required to developing a leadership preparation program, and a professional development plan that bridges the theoretical perspective to the practitioners' perspective? An inquiry was conducted to gain insight into the individual perspectives of three diverse women administrators who participated in the Land of…

Engaged Pedagogy and Transformative Learning in Graduate Education: A Service-Learning Case Study

ERIC Educational Resources Information Center

Levkoe, Charles Z.; Brail, Shauna; Daniere, Amrita

2014-01-01

Operating at the interface between ideas and action, graduate education in geography and planning has a responsibility to provide students with theoretical and practical training. This paper describes service-learning as a form of engaged pedagogy, exploring its ability to interrogate notions related to the "professional turn" and its…

Raising the Profile of Innovative Teaching in Higher Education? Reflections on the EquATE Project

ERIC Educational Resources Information Center

Robson, Sue; Wall, Kate; Lofthouse, Rachel

2013-01-01

This paper presents a methodology developed by members of the Research Centre for Learning and Teaching (RCfLAT) to collaborate with university teaching colleagues to produce theoretically- and pedagogically-based case studies of innovations in teaching and learning. The Equal Acclaim for Teaching Excellence (EquATE) project investigates…

Power, Language, and Professional Choices: A Hermeneutic Approach To Teaching Technical Communication.

ERIC Educational Resources Information Center

Tillery, Denise

2001-01-01

Argues that the philosophical hermeneutics of Hans-Georg Gadamer provides a useful theoretical framework from which to discuss ethical issues in the technical communication classroom. Analyzes a previously published case study to demonstrate how hermeneutics can shed light on the ways that writers can be unconscious of ethical problems in their…

Restorative Commons: Creating Health and Well-Being Through Urban Landscapes

Treesearch

Lindsay Campbell; Anne Wiesen

2009-01-01

A collection of 18 articles inspired by the Meristem 2007 Forum, "Restorative Commons for Community Health." The articles include interviews, case studies, thought pieces, and interdisciplinary theoretical works that explore the relationship between human health and the urban environment. This volume is a joint endeavor of Meristem and the U.S. Forest Service...

Multi-Tiered System of Support: Best Differentiation Practices for English Language Learners in Tier 1

ERIC Educational Resources Information Center

Izaguirre, Cecilia

2017-01-01

Purpose: This qualitative case study explored the best practices of differentiation of Tier 1 instruction within a multi-tiered system of support for English Language Learners who were predominately Spanish speaking. Theoretical Framework: The zone of proximal development theory, cognitive theory, and the affective filter hypothesis guided this…

The Dynamics of Chinese Face Mechanisms and Classroom Behaviour: A Case Study

ERIC Educational Resources Information Center

Wu, Xiaoxin

2009-01-01

Research on cross-cultural psychology, anthropology and sociology reveals that the impact of face on social interactions is both pervasive and powerful in Asia. Face, however, has not gained general acceptance as an important theoretical concept in the literature on Asian (Chinese in particular) classroom behaviour and management. This article…

Professional Doctoral Scholarship in Ghana: A Case Study of the CDT-BEPS Framework

ERIC Educational Resources Information Center

Owusu-Manu, D.; Edwards, D. J.; Afrane, S. K.; Dontwi, I. K.; Laycock, P.

2015-01-01

The constantly evolving paradigm of 21st century educational offerings and the growing demand for "professional practice" research degrees have raised concerns about the relevance of the traditional "theoretical" PhD award. To meet this growing demand, and address these concerns, alternative routes to achieving the doctoral…

Articulating Syntactic and Numeric Perspectives on Equivalence: The Case of Rational Expressions

ERIC Educational Resources Information Center

Solares, Armando; Kieran, Carolyn

2013-01-01

Our study concerns the conceptual mathematical knowledge that emerges during the resolution of tasks on the equivalence of polynomial and rational algebraic expressions, by using CAS and paper-and-pencil techniques. The theoretical framework we adopt is the Anthropological Theory of Didactics ("Chevallard" 19:221-266, 1999), in…

Jurors' Responses to "Longevity and the Secondary Theatre Arts Teacher: A Case Study."

ERIC Educational Resources Information Center

Klein, Jeanne

1999-01-01

Responds to an article in the same issue of this journal which examines factors influencing longevity in the career of a particular high school theatre arts teacher. Notes responses of some jurors regarding methodological concerns and theoretical grounding, but appreciates the writer's personal affinity with her subject and welcomes the…

Bridging the Divide: Developing a Scholarly Habitus for Aspiring Graduate Students through Summer Bridge Programs Participation

ERIC Educational Resources Information Center

McCoy, Dorian L.; Winkle-Wagner, Rachelle

2015-01-01

This multisite case study explored the role of summer institutes in preparing Students of Color for doctoral programs. Bourdieu's social reproduction theory, particularly the concept of habitus, was employed as a theoretical framework to investigate how the participants further developed habitus (their dispositions, identities, and perspectives)…

Networking for Education for Sustainable Development in Austria: The Austrian ECOLOG-Schools Programme

ERIC Educational Resources Information Center

Rauch, Franz

2016-01-01

This case describes networking for education for sustainable development within the Austrian ECOLOG-schools network. The article presents theoretical concepts of networks in education in general, and the organization of the ECOLOG-network in particular. Based upon these foundations, the concept and results of a participatory evaluation study are…

Self-Organisation and Capacity Building: Sustaining the Change

ERIC Educational Resources Information Center

Bain, Alan; Walker, Allan; Chan, Anissa

2011-01-01

Purpose: The paper aims to describe the application of theoretical principles derived from a study of self-organisation and complex systems theory and their application to school-based capacity building to support planned change. Design/methodology/approach: The paper employs a case example in a Hong Kong School to illustrate the application of…

Policy and Curriculum Development in Greece. the Case of Secondary School Curriculum

ERIC Educational Resources Information Center

Ifanti, Amalia A.

2007-01-01

This paper examines the politics and values of the secondary school curriculum in Greece and attempts to find out the influences of cultural tradition and centralized control on curriculum development. In particular, it studies the decision-making process and the politics of educational control, employing some theoretical elements from centralist…

Exploring the Music Festival as a Music Educational Project

ERIC Educational Resources Information Center

Karlsen, Sidsel; Brandstrom, Sture

2008-01-01

The purpose of this article was to explore the music festival as a music educational project by means of results drawn from a case study investigating one particular festival's impact on identity development, both for the individual member of the audience (musical identity) and for the local society (local identity). The theoretical framework was…

IP Addressing: Problem-Based Learning Approach on Computer Networks

ERIC Educational Resources Information Center

Jevremovic, Aleksandar; Shimic, Goran; Veinovic, Mladen; Ristic, Nenad

2017-01-01

The case study presented in this paper describes the pedagogical aspects and experience gathered while using an e-learning tool named IPA-PBL. Its main purpose is to provide additional motivation for adopting theoretical principles and procedures in a computer networks course. In the proposed model, the sequencing of activities of the learning…

"The Next Level": Investigating Teaching and Learning within an Irish Traditional Music Online Community

ERIC Educational Resources Information Center

Kenny, Ailbhe

2013-01-01

Online music communities offer a new context and culture for musical participation globally. This article, employing a socio-cultural theoretical lens, examines how the Online Academy of Irish Music (OAIM) functions as a teaching and learning online community for Irish traditional music. Findings from qualitative case study research present…

Cooling system operation efficiency of locomotive diesel engine

NASA Astrophysics Data System (ADS)

Ovcharenko, Sergey; Balagin, Oleg; Balagin, Dmitry

2017-10-01

A theoretical model for the calculation of the heat parameters of locomotive diesel engine cooling system in case of using heating agent bypass between the circuits is represented. The influence of the cooling fluid on the bypass from “hot” circuit to the “cold” circuit at different ambient air temperature is studied.

Configurations of Identity among Sexual Minority Youth: Context, Desire, and Narrative

ERIC Educational Resources Information Center

Hammack, Phillip L.; Thompson, Elisabeth Morgan; Pilecki, Andrew

2009-01-01

Youth with same-sex desire undergo a process of narrative engagement as they construct configurations of identity that provide meaning and coherence with available sexual taxonomies. This article presents a theoretical analysis and four case studies centering on the relationship among context, desire, and identity for youth with same-sex desire.…

Complex Adaptive Schools: Educational Leadership and School Change

ERIC Educational Resources Information Center

Kershner, Brad; McQuillan, Patrick

2016-01-01

This paper utilizes the theoretical framework of complexity theory to compare and contrast leadership and educational change in two urban schools. Drawing on the notion of a complex adaptive system--an interdependent network of interacting elements that learns and evolves in adapting to an ever-shifting context--our case studies seek to reveal the…

Constructing Childhood: Discourses about School Violence in the Greek Daily Press

ERIC Educational Resources Information Center

Avgitidou, Sofia; Stamou, Anastasia G.

2013-01-01

This study explores the construction of discourses about childhood in the Greek daily press. It employs the theoretical frameworks of the new sociology of childhood and critical discourse analysis to question which discourses of childhood are constructed in the daily press presenting cases where children were the victimisers in school violent…

Chasing Innovation: A Pilot Case Study of a Rhizomatic Design Thinking Education Program

ERIC Educational Resources Information Center

Biffi, Alfredo; Bissola, Rita; Imperatori, Barbara

2017-01-01

Purpose: The purpose of this paper is to illustrate and discuss the main features and key challenges of an original post-graduate education program designed according to an innovative theoretical framework promoting design thinking in a rhizomatic approach. By involving different stakeholders, the aim of this entrepreneurship education program is…

A School's Activity System of Supporting Upper-Elementary Newcomers' English Language Proficiency Growth

ERIC Educational Resources Information Center

Cowdrick, Kara E.

2018-01-01

Using the sociocultural theoretical framework of activity theory, this intrinsic case study sought to investigate how administrators, mainstream teachers, and English to speakers of other languages (ESOL) teachers in one school support newcomers' English language proficiency growth. Newcomers are English learners (ELs) who moved to the United…

Developing a Quality Culture through the Scholarship of Teaching and Learning

ERIC Educational Resources Information Center

Martensson, Katarina; Roxa, Torgny; Olsson, Thomas

2011-01-01

The critical features of a strategy to promote improved teaching and learning are explored in this article from a socio-cultural perspective in a research-intensive institution. The paper presents theoretical underpinnings and implications as well as an empirical case study of such a strategy and its seemingly successful results. The strategy…

A Framework for Mathematical Thinking: The Case of Linear Algebra

ERIC Educational Resources Information Center

Stewart, Sepideh; Thomas, Michael O. J.

2009-01-01

Linear algebra is one of the unavoidable advanced courses that many mathematics students encounter at university level. The research reported here was part of the first author's recent PhD study, where she created and applied a theoretical framework combining the strengths of two major mathematics education theories in order to investigate the…

GENETIC DIVERSITY AS AN INDICATOR OF ECOSYSTEM CONDITION AND SUSTAINABILITY: UTILITY FOR REGIONAL ASSESSMENTS OF STREAM CONDITION IN THE EASTERN UNITED STATES

EPA Science Inventory

This report documents research undertaken to determine if the theoretical promise of genetic diversity as an ecological indicator is realized in real-world applications. Results of two case studies confirm that genetic diversity is a useful indicator of environmental condition. ...

Marasmus or Recovery? The Effects of Cutbacks in Federal Agencies.

ERIC Educational Resources Information Center

Rubin, Irene S.

1984-01-01

Based on case study data from five federal agencies, a tentative theoretical model of the life cycle of federal agencies is presented. It is concluded that for most agencies, decline, once begun, will be continuous, but for a few the hope of congressional rescue may provide motivation for improved management. (Author/RM)

Qualitative Inquiry and Research Design: Choosing among Five Approaches [with CD-ROM]. Second Edition

ERIC Educational Resources Information Center

Creswell, John W.

2006-01-01

This new version explores the philosophical underpinnings, history, and key elements of each of five qualitative inquiry approaches: narrative research, phenomenology, grounded theory, ethnography, and case study. Using an accessible and engaging writing style, the author compares theoretical frameworks, ways to employ standards of quality, and…

Using Action Research to Foster Positive Social Values

ERIC Educational Resources Information Center

Benton, Jean

2005-01-01

"Using Action Research to Foster Positive Social Values" provides teachers with a unique framework in which to consider classroom violence. It uses actual case studies and working models done through classroom research to produce more effective classrooms that foster positive social values. The author lays out a theoretical framework for: (1)…

Literacy in the 21st Century: Supporting Struggling Adolescent Readers

ERIC Educational Resources Information Center

Miller, Julie Annette

2013-01-01

The purpose of this narrative bounded case study research was to describe the different perspectives of five struggling readers regarding contributing factors to their literacy experiences and success. The theoretical framework used to make meaning included: (a) high schools and literacy, (b) school culture, (c) motivation, (d) technology, and (e)…

Family Background and University Dropouts during the Crisis: The Case of Italy

ERIC Educational Resources Information Center

Ghignoni, Emanuela

2017-01-01

The Italian university system has long been characterised by high non-completion rates, though aggregate data show a slight reduction of dropouts in recent years. The most straightforward theoretical explanation for this lies in the lowering opportunity cost of studying due to the financial and economic crisis. Nonetheless, this interpretation is…

Developmental Visual Dysfunction: Models for Assessment and Management.

ERIC Educational Resources Information Center

Erhardt, Rhoda Priest

This book describes transdisciplinary management of multiply disabled children with vision problems and presents four theoretical models of visual assessment and three illustrative case studies in a sequence appropriate to the learning process. The first three models are intended to lead to assessment and management of the child and the last to…

Interactive Videoconference Supported Teaching in Undergraduate Nursing: A Case Study for ECG

ERIC Educational Resources Information Center

Celikkan, Ufuk; Senuzun, Fisun; Sari, Dilek; Sahin, Yasar Guneri

2013-01-01

This paper describes how interactive videoconference can benefit the Electrocardiography (ECG) skills of undergraduate nursing students. We have implemented a learning system that interactively transfers the visual and practical aspects of ECG from a nursing skills lab into a classroom where the theoretical part of the course is taught. The…

Collegiate Womanhood: 'The Woman Question' in American Higher Education, 1890-1910.

ERIC Educational Resources Information Center

Haines, Patricia Foster

Literature from the late nineteenth century and a case study of Cornell University between 1870 and 1900 are discussed in relation to higher education of women to explore how contemporary theorists and academic administrators dealt with the issues. Theoretical definitions of "equal" opportunities for women in academe shifted from…

Dynamic and Interactive Mathematics Learning Environments: The Case of Teaching the Limit Concept

ERIC Educational Resources Information Center

Martinovic, Dragana; Karadag, Zekeriya

2012-01-01

This theoretical study is an attempt to explore the potential of the dynamic and interactive mathematics learning environments (DIMLE) in relation to the technological pedagogical content knowledge (TPACK) framework. DIMLE are developed with intent to support learning mathematics through free exploration in a less constrained environment. A…

Increasing Urban Students' Engagement with School: Toward the Expeditionary Learning Model

ERIC Educational Resources Information Center

Ikpeze, Chinwe

2013-01-01

This paper documents the findings of a case study of one K-10 urban expeditionary learning (EL) school. Drawing on theoretical perspectives consistent with the sociocultural theory, data were collected from a variety of sources that included a survey, interviews, field notes from classroom observations and other school activities. Thematic…

Longitudinal Examination of Optimism, Personal Self-Efficacy and Student Well-Being: A Path Analysis

ERIC Educational Resources Information Center

Phan, Huy P.

2016-01-01

The present longitudinal study, based on existing theoretical tenets, explored a conceptual model that depicted four major orientations: optimism, self-efficacy, and academic well-being. An important question for consideration, in this case, involved the testing of different untested trajectories that could explain and predict individuals'…

A theoretical and practical test of geographical profiling with serial vehicle theft in a U.K. context.

PubMed

Tonkin, Matthew; Woodhams, Jessica; Bond, John W; Loe, Trudy

2010-01-01

Geographical profiling is an investigative methodology sometimes employed by the police to predict the residence of an unknown offender from the locations of his/her crimes. The validity of geographical profiling, however, has not been fully explored for certain crime types. This study, therefore, presents a preliminary test of the potential for geographical profiling with a sample of 145 serial vehicle thieves from the U.K. The behavioural assumptions underlying geographical profiling (distance decay and domocentricity) are tested and a simple practical test of profiling using the spatial mean is presented. There is evidence for distance decay but not domocentricity among the spatial behaviour of car thieves from the U.K. A degree of success was achieved when applying the spatial mean on a case-by-case basis. The level of success varied, however, and neither series length in days nor number of crimes could account for the variation. The findings question previously held assumptions regarding geographical profiling and have potential theoretical and practical implications for the study and investigation of vehicle theft in the U.K. 2009 John Wiley & Sons, Ltd.

The Pedagogy of Primary Historical Sources in Mathematics: Classroom Practice Meets Theoretical Frameworks

NASA Astrophysics Data System (ADS)

Barnett, Janet Heine; Lodder, Jerry; Pengelley, David

2014-01-01

We analyze our method of teaching with primary historical sources within the context of theoretical frameworks for the role of history in teaching mathematics developed by Barbin, Fried, Jahnke, Jankvist, and Kjeldsen and Blomhøj, and more generally from the perspective of Sfard's theory of learning as communication. We present case studies for two of our guided student modules that are built around sequences of primary sources and are intended for learning core curricular material, one on logical implication, the other on the concept of a group. Additionally, we propose some conclusions about the advantages and challenges of using primary sources in teaching mathematics.

Vibration energy harvesting using piezoelectric unimorph cantilevers with unequal piezoelectric and nonpiezoelectric lengths

PubMed Central

Gao, Xiaotong; Shih, Wei-Heng; Shih, Wan Y.

2010-01-01

We have examined a piezoelectric unimorph cantilever (PUC) with unequal piezoelectric and nonpiezoelectric lengths for vibration energy harvesting theoretically by extending the analysis of a PUC with equal piezoelectric and nonpiezoelectric lengths. The theoretical approach was validated by experiments. A case study showed that for a fixed vibration frequency, the maximum open-circuit induced voltage which was important for charge storage for later use occurred with a PUC that had a nonpiezoelectric-to-piezoelectric length ratio greater than unity, whereas the maximum power when the PUC was connected to a resistor for immediate power consumption occurred at a unity nonpiezoelectric-to-piezoelectric length ratio. PMID:21200444

Child murder by parents and evolutionary psychology.

PubMed

Friedman, Susan Hatters; Cavney, James; Resnick, Phillip J

2012-12-01

This article explores the contribution of evolutionary theory to the understanding of causation and motive in filicide cases and also reviews special issues in the forensic evaluation of alleged perpetrators of filicide. Evolutionary social psychology seeks to understand the context in which our brains evolved, to understand human behaviors. The authors propose evolutionary theory as a framework theory to meaningfully appreciate research about filicide. Using evolutionary psychology as a theoretical lens, this article reviews the research on filicide over the past 40 years, and describes epidemiologic and typologic studies of filicide, and theoretical analyses from a range of disciplines. Copyright © 2012 Elsevier Inc. All rights reserved.

Guiding principles for vortex flow controls

NASA Technical Reports Server (NTRS)

Wu, J. Z.; Wu, J. M.

1991-01-01

In the practice of vortex flow controls, the most important factor is that the persistency and obstinacy of a concentrated vortex depend on its stability and dissipation. In this paper, the modern nonlinear stability theory for circulation-preserving flows is summarized, and the dissipation for general viscous flows is analyzed in terms of the evolution of total enstrophy. These analyses provide a theoretical base for understanding relevant physics of vortex flows, and lead to some guiding principles and methods for their controls. Case studies taken from various theoretical and/or experimental works of vortex controls, due to the present authors as well as others, confirm the feasibility of the recommended principles and methods.

Paradoxical empowerment of produsers in the context of informational capitalism

NASA Astrophysics Data System (ADS)

Proulx, Serge; Heaton, Lorna; Kwok Choon, Mary Jane; Millette, Mélanie

2011-04-01

This article develops a critical perspective on how online contribution practices participate in the creation of economic value under informational capitalism. It discusses the theoretical relevance of the concept of empowerment for exploring online contribution practices. We argue that produsage practices are paradoxical insofar as they can be simultaneously alienating and emancipatory. This theoretical lens allows us to take a fresh look at the collective intelligence of produsers and the role of communities in the collective production of content. We illustrate the fruitfulness of this conceptual approach with two case studies: Facebook and TelaBotanica, a platform for the collaborative production of scientific knowledge.

Group theoretic approach for solving the problem of diffusion of a drug through a thin membrane

NASA Astrophysics Data System (ADS)

Abd-El-Malek, Mina B.; Kassem, Magda M.; Meky, Mohammed L. M.

2002-03-01

The transformation group theoretic approach is applied to study the diffusion process of a drug through a skin-like membrane which tends to partially absorb the drug. Two cases are considered for the diffusion coefficient. The application of one parameter group reduces the number of independent variables by one, and consequently the partial differential equation governing the diffusion process with the boundary and initial conditions is transformed into an ordinary differential equation with the corresponding conditions. The obtained differential equation is solved numerically using the shooting method, and the results are illustrated graphically and in tables.

Theoretical aspects of antimatter and gravity.

PubMed

Blas, Diego

2018-03-28

In this short contribution, I review the physical case of studying the gravitational properties of antimatter from a theoretical perspective. I first discuss which elements are desirable for any theory where the long-range interactions between matter and antimatter differ from those of matter with itself. Afterwards I describe the standard way to hide the effects of new forces in matter-matter interactions which still allows one to generate ponderable matter-antimatter interactions. Finally, I comment on some recent ideas and propose some possible future directions.This article is part of the Theo Murphy meeting issue 'Antiproton physics in the ELENA era'. © 2018 The Author(s).

Vibration energy harvesting using piezoelectric unimorph cantilevers with unequal piezoelectric and nonpiezoelectric lengths.

PubMed

Gao, Xiaotong; Shih, Wei-Heng; Shih, Wan Y

2010-12-06

We have examined a piezoelectric unimorph cantilever (PUC) with unequal piezoelectric and nonpiezoelectric lengths for vibration energy harvesting theoretically by extending the analysis of a PUC with equal piezoelectric and nonpiezoelectric lengths. The theoretical approach was validated by experiments. A case study showed that for a fixed vibration frequency, the maximum open-circuit induced voltage which was important for charge storage for later use occurred with a PUC that had a nonpiezoelectric-to-piezoelectric length ratio greater than unity, whereas the maximum power when the PUC was connected to a resistor for immediate power consumption occurred at a unity nonpiezoelectric-to-piezoelectric length ratio.

Realizations of some contact metric manifolds as Ricci soliton real hypersurfaces

NASA Astrophysics Data System (ADS)

Cho, Jong Taek; Hashinaga, Takahiro; Kubo, Akira; Taketomi, Yuichiro; Tamaru, Hiroshi

2018-01-01

Ricci soliton contact metric manifolds with certain nullity conditions have recently been studied by Ghosh and Sharma. Whereas the gradient case is well-understood, they provided a list of candidates for the nongradient case. These candidates can be realized as Lie groups, but one only knows the structures of the underlying Lie algebras, which are hard to be analyzed apart from the three-dimensional case. In this paper, we study these Lie groups with dimension greater than three, and prove that the connected, simply-connected, and complete ones can be realized as homogeneous real hypersurfaces in noncompact real two-plane Grassmannians. These realizations enable us to prove, in a Lie-theoretic way, that all of them are actually Ricci soliton.

A Comparison of Individual and School Level Approaches to Merit Pay: A Case Study of the Dade County Public Schools.

ERIC Educational Resources Information Center

Provenzo, Eugene F., Jr.; And Others

This policy study discusses two models of merit pay programs enacted in Florida: the Florida Meritorious Teacher Program and the Quality Instruction Incentives Program (QUIIP). Using the Motivation-Hygiene Theory (Herzberg et al.) as a theoretical framework, each program was analyzed from the perspective of how it worked as a motivator and source…

Designing Creative Inter-Disciplinary Science and Art Interventions in Schools: The Case of Write a Science Opera (WASO)

ERIC Educational Resources Information Center

Ben-Horin, Oded; Chappell, Kerry A.; Halstead, Jill; Espeland, Magne

2017-01-01

The goal of this qualitative study is to provide theoretical knowledge and design principles for a creative educational environment characterized by simultaneous study and exploration of science or math, and the arts: Write a Science Opera (WASO). To do so, we used a theory of creativity in education which links collaborative co-creation in…

The Canon or the Kids: Teachers and the Recontextualisation of Classical and Popular Music in the Secondary School Curriculum

ERIC Educational Resources Information Center

McPhail, Graham

2013-01-01

This article reports on some of the findings from case studies conducted with six secondary school music teachers in New Zealand. The purpose of the study was to investigate and explain the ways in which teachers manage the relationship between classical and popular music in their elective classroom programs, utilizing a theoretical framework…

Pre-Service Teachers' Construction of Professional Identity through Peer Collaboration during Professional Experience: A Case Study in Australia

ERIC Educational Resources Information Center

Nguyen, Hoa Thi Mai; Loughland, Tony

2018-01-01

Much research in the area of pre-service teacher (PST) identity formation has focused on the mentoring relationship between PSTs and their supervising teachers. While this is important to identity formation, interaction with peers is another area that needs to be examined. Using Wenger's matrix as a theoretical framework, this study aimed to…

[The Munich Attachment and Effectiveness Study: Study Design and a Case Example].

PubMed

Hörz-Sagstetter, Susanne; Minow, Anna-Rahel; Erhardt, Ingrid; Barten-Hohn, Julia; Denscherz, Claudia; Buchheim, Anna; Taubner, Svenja; Mertens, Wolfgang

2016-03-01

The "Munich Attachment and Effectiveness Study" is a prospective psychotherapy study examining process and outcome of psychoanalytic psychotherapies. The study design and results are exemplified in a single case. At 6 points in time audio-taped and transcribed therapy sessions are evaluated using process instruments (e. g. Psychotherapy Process Q-Set PQS) and interviews (e. g. Operationalized Psychodynamic Diagnostics OPD, Heidelberg Structural Change Scale HSCS, Adult Attachment Interview AAI). In the single case, findings from the psychotherapeutic process (e. g. "therapist is empathic" according to PQS) complement the achieved changes. 5 HSCS problem foci reached level of "restructuring", on the Reflective Functioning Scale a marked change of RF took place and the attachment classification changed over time. The instruments employed in this study corresponded well in assessing change processes in spite of differing theoretical background. © Georg Thieme Verlag KG Stuttgart · New York.

Intersectorial health-related policies: the use of a legal and theoretical framework to propose a typology to a case study in a Brazilian municipality.

PubMed

Tess, Beatriz Helena; Aith, Fernando Mussa Abujamra

2014-11-01

This article analyzes intersectorial health-related policies (IHRP) based on a case study performed in 2008-2009 that mapped the social policies of the city of Piracicaba, State of Sao Paulo, Brazil. The research strategy comprised quantitative and qualitative methodologies and converging information sources. Legal and theoretical conceptual frameworks were applied to the Piracicaba study results and served as the basis for proposing a typology of IHRP. Three types of IHRP were identified: health policies where the health sector is coordinator but needs non-health sectors to succeed; policies with a sector other than health as coordinator, but which needs health sector collaboration to succeed; and thirdly, genuine intersectorial policies, not led by any one sector but by a specifically-appointed intersectorial coordinator. The authors contend that political commitment of local authorities alone may not be enough to promote efficient intersectorial social policies. Comprehension of different types of IHRP and their interface mechanisms may contribute to greater efficiency and coverage of social policies that affect health equity and its social determinants positively. In the final analysis,, this will lead to more equitable health outcomes.

Event Networks and the Identification of Crime Pattern Motifs

PubMed Central

2015-01-01

In this paper we demonstrate the use of network analysis to characterise patterns of clustering in spatio-temporal events. Such clustering is of both theoretical and practical importance in the study of crime, and forms the basis for a number of preventative strategies. However, existing analytical methods show only that clustering is present in data, while offering little insight into the nature of the patterns present. Here, we show how the classification of pairs of events as close in space and time can be used to define a network, thereby generalising previous approaches. The application of graph-theoretic techniques to these networks can then offer significantly deeper insight into the structure of the data than previously possible. In particular, we focus on the identification of network motifs, which have clear interpretation in terms of spatio-temporal behaviour. Statistical analysis is complicated by the nature of the underlying data, and we provide a method by which appropriate randomised graphs can be generated. Two datasets are used as case studies: maritime piracy at the global scale, and residential burglary in an urban area. In both cases, the same significant 3-vertex motif is found; this result suggests that incidents tend to occur not just in pairs, but in fact in larger groups within a restricted spatio-temporal domain. In the 4-vertex case, different motifs are found to be significant in each case, suggesting that this technique is capable of discriminating between clustering patterns at a finer granularity than previously possible. PMID:26605544

Epistemic Beliefs and Conceptual Understanding in Biotechnology: A Case Study

NASA Astrophysics Data System (ADS)

Rebello, Carina M.; Siegel, Marcelle A.; Witzig, Stephen B.; Freyermuth, Sharyn K.; McClure, Bruce A.

2012-04-01

The purpose of this investigation was to explore students' epistemic beliefs and conceptual understanding of biotechnology. Epistemic beliefs can influence reasoning, how individuals evaluate information, and informed decision making abilities. These skills are important for an informed citizenry that will participate in debates regarding areas in science such as biotechnology. We report on an in-depth case study analysis of three undergraduate, non-science majors in a biotechnology course designed for non-biochemistry majors. We selected participants who performed above average and below average on the first in-class exam. Data from multiple sources—interviews, exams, and a concept instrument—were used to construct (a) individual profiles and (b) a cross-case analysis of our participants' conceptual development and epistemic beliefs from two different theoretical perspectives—Women's Ways of Knowing and the Reflective Judgment Model. Two independent trained researchers coded all case records independently for both theoretical perspectives, with resultant initial Cohen's kappa values above .715 (substantial agreement), and then reached consensus on the codes. Results indicate that a student with more sophisticated epistemology demonstrated greater conceptual understandings at the end of the course than a student with less sophisticated epistemology, even though the latter performed higher initially. Also a student with a less sophisticated epistemology and low initial conceptual performance does not demonstrate gains in their overall conceptual understanding. Results suggest the need for instructional interventions fostering epistemological development of learners in order to facilitate their conceptual growth.

When physics and biology meet: the nanoscale case.

PubMed

Bueno, Otávio

2011-06-01

As an illustration of the complexities involved in connecting physics and molecular biology at the nanoscale, in this paper I discuss two case studies from nanoscience. The first examines the use of a biological structure (DNA) to build nanostructures in a controlled way. The second discusses the attempt to build a single molecular wire, and then decide whether such a wire is indeed conducting. After presenting the central features of each case study, I examine the role played in them by microscopic imaging, the different styles of reasoning involved, and the various theoretical, methodological, and axiological differences. I conclude by arguing that, except for the probe microscopes that are used, there is very little in common between the two cases. At the nanoscale, physics and molecular biology seem to meet in a non-unified way. Copyright © 2010 Elsevier Ltd. All rights reserved.

Interactive learning research: application of cognitive load theory to nursing education.

PubMed

Hessler, Karen L; Henderson, Ann M

2013-06-25

The purpose of this research was to investigate the effectiveness of interactive self-paced computerized case study compared to traditional hand-written paper case study on the outcomes of student knowledge, attitude, and retention of the content delivered. Cognitive load theory (CLT) provided the theoretical framework for the study. A quasi-experimental pre-test post-test design with random group assignment was used to measure by self-report survey student cognitive load and interactivity level of the intervention. Student scores on quizzes in semester 1 and post-test follow-up quizzes in semester 3 were assessed for the intervention's effects on knowledge retention. While no significant statistical differences were found between groups, the students in the interactive case study group rated their case study as more fun and interactive. These students also scored consistently higher on the post-test quiz items in their third semester, showing the viability of using CLT to improve student retention of nursing curricula information.

Stability and Interaction of Coherent Structure in Supersonic Reactive Wakes

NASA Technical Reports Server (NTRS)

Menon, Suresh

1983-01-01

A theoretical formulation and analysis is presented for a study of the stability and interaction of coherent structure in reacting free shear layers. The physical problem under investigation is a premixed hydrogen-oxygen reacting shear layer in the wake of a thin flat plate. The coherent structure is modeled as a periodic disturbance and its stability is determined by the application of linearized hydrodynamic stability theory which results in a generalized eigenvalue problem for reactive flows. Detailed stability analysis of the reactive wake for neutral, symmetrical and antisymmetrical disturbance is presented. Reactive stability criteria is shown to be quite different from classical non-reactive stability. The interaction between the mean flow, coherent structure and fine-scale turbulence is theoretically formulated using the von-Kaman integral technique. Both time-averaging and conditional phase averaging are necessary to separate the three types of motion. The resulting integro-differential equations can then be solved subject to initial conditions with appropriate shape functions. In the laminar flow transition region of interest, the spatial interaction between the mean motion and coherent structure is calculated for both non-reactive and reactive conditions and compared with experimental data wherever available. The fine-scale turbulent motion determined by the application of integral analysis to the fluctuation equations. Since at present this turbulence model is still untested, turbulence is modeled in the interaction problem by a simple algebraic eddy viscosity model. The applicability of the integral turbulence model formulated here is studied parametrically by integrating these equations for the simple case of self-similar mean motion with assumed shape functions. The effect of the motion of the coherent structure is studied and very good agreement is obtained with previous experimental and theoretical works for non-reactive flow. For the reactive case, lack of experimental data made direct comparison difficult. It was determined that the growth rate of the disturbance amplitude is lower for reactive case. The results indicate that the reactive flow stability is in qualitative agreement with experimental observation.

The social development of children with severe learning difficulties: a case study of an inclusive education initiative between two primary schools in Oxfordshire, UK.

PubMed

Dew-Hughes, D; Blandford, S

1999-08-01

This case study of primary age children in two linked Oxfordshire schools investigated the contribution of staff attitudes and practices to inequalities in education, and contrasted the socialisation of children with similar learning difficulties in different educational placements. Participant observation of a group of children and carers in a special school suggested areas of more rigorous inquiry. Structured observations compared this group with a matched sample of children with similar learning difficulties in a mainstream setting. Staff on both sites were invited to comment on findings arising from analysed data in order to identify attitudes and policies which might account for the observed differences in practice. The study was engendered by experience of differences arising from educational placement. The theoretical stance arose through reviewing previous work, predominantly the debate on inclusive education, and the wider issues of human rights and equal opportunities embedded in the social development of people with disabilities. The theoretical framework underpinning this study is established in some depth. The project was designed to investigate issues of the wider social perspective, by conducting a micro-study of one model of educational inclusion whose outcomes have direct relevance to those issues.

Theoretical Models, Assessment Frameworks and Test Construction.

ERIC Educational Resources Information Center

Chalhoub-Deville, Micheline

1997-01-01

Reviews the usefulness of proficiency models influencing second language testing. Findings indicate that several factors contribute to the lack of congruence between models and test construction and make a case for distinguishing between theoretical models. Underscores the significance of an empirical, contextualized and structured approach to the…

Exploring How Globalization Shapes Education: Methodology and Theoretical Framework

ERIC Educational Resources Information Center

Pan, Su-Yan

2010-01-01

This is a commentary on some major issues raised in Carter and Dediwalage's "Globalisation and science education: The case of "Sustainability by the bay"" (this issue), particularly their methodology and theoretical framework for understanding how globalisation shapes education (including science education). While acknowledging the authors'…

Intermittent Turbulence in the Stable Boundary Layer over Land. Part III: A Classification for Observations during CASES-99.

NASA Astrophysics Data System (ADS)

van de Wiel, B. J. H.; Moene, A. F.; Hartogensis, O. K.; de Bruin, H. A. R.; Holtslag, A. A. M.

2003-10-01

In this paper a classification of stable boundary layer regimes is presented based on observations of near-surface turbulence during the Cooperative Atmosphere-Surface Exchange Study-1999 (CASES-99). It is found that the different nights can be divided into three subclasses: a turbulent regime, an intermittent regime, and a radiative regime, which confirms the findings of two companion papers that use a simplified theoretical model (it is noted that its simpliflied structure limits the model generality to near-surface flows). The papers predict the occurrence of stable boundary layer regimes in terms of external forcing parameters such as the (effective) pressure gradient and radiative forcing. The classification in the present work supports these predictions and shows that the predictions are robust in a qualitative sense. As such, it is, for example, shown that intermittent turbulence is most likely to occur in clear-sky conditions with a moderately weak effective pressure gradient. The quantitative features of the theoretical classification are, however, rather sensitive to (often uncertain) local parameter estimations, such as the bulk heat conductance of the vegetation layer. This sensitivity limits the current applicability of the theoretical classification in a strict quantitative sense, apart from its conceptual value.

Experimental and Theoretical Study of Heat Conduction for Air up to 5000 K

NASA Technical Reports Server (NTRS)

Peng, Tzy-Cheng; Ahtye, Warren F.

1961-01-01

The theoretical value of the integral of thermal conductivity is compared with the experimental values from shock-tube measurements. The particular case considered is the one-dimensional nonsteady flow of heat through air at constant pressure. This approach has been previously described in NASA TR R-27. experiment was uncertain because of the large scatter in the experimental data. In this paper, an attempt is made to improve the correlation by use of a more refined calculation of the integral of thermal conductivity, and by use of improved experimental techniques and instrumentation. As a result of these changes, a much closer correlation is shown between the experimental and theoretical heat-flux potentials. This indicates that the predicted values of the coefficient of thermal conductivity for high-temperature air may be suitably accurate for many engineering needs, up to the limits of the test (4600 K).

Protecting scientists, science, and case protagonists: a discussion of the Taus v. Loftus commentaries.

PubMed

Dalenberg, Constance J

2014-12-01

This article is a discussion of the articles by Nicole Taus Kluemper, Erna Olafson, Frank Putnam, Laura Brown, Ross Cheit, and Gerald Koocher. The papers center on the issues raised by a decision by two psychologists to break the confidentiality of a case study published by David Corwin and Erna Olafson to gather information to support an alternative theoretical view of the case. The article reviews best understandings of the justifications proposed by the psychologists, who saw themselves as investigative reporters, discusses the papers that have been submitted, and proposes enhanced ethical guidelines and increased professional discussion of these issues. © The Author(s) 2014.

Tertiary Overschooling in Nigeria: Theoretical Perspectives and Cases

ERIC Educational Resources Information Center

Etuk, Grace Koko; Akpan, Eno Gabriel; Etuk, Etuk Nssien

2012-01-01

This paper views overschooling as conditions whereby people occupy job positions which are not optimal for their qualifications. The theoretical backings for the paper are the Human Capital, the equity and the two-factor theories of motivation and job satisfaction. Antecedents to overschooling which are mentioned include educational emphasis, the…

Feminist Principles in Survivor's Groups: Out-of-Group Contact.

ERIC Educational Resources Information Center

Rittenhouse, JoAn

1997-01-01

Illustrates the value of theoretical concepts from Feminist Therapy in the group treatment of women survivors. Theoretical underpinnings are supported using data taken from clinical experience and by examining group themes and out-of-group contact developed from the case sample. Principles regarding feminist groups are proposed. (RJM)

Wife-Battering: A Theoretical Construct and Case Report.

ERIC Educational Resources Information Center

Guerney, Bernard, Jr.; And Others

1987-01-01

Presents a theoretical construct (prostrate-detonate-dominate-ingratiate) to explain the development and maintenance of wife-battering. Ties the construct to research evidence and, along with clinical observations, uses it to develop a rationale for a type of therapy deemed effective with wife-batters: group marital Relationship Enhancement.…

Connecting single cell to collective cell behavior in a unified theoretical framework

NASA Astrophysics Data System (ADS)

George, Mishel; Bullo, Francesco; Campàs, Otger

Collective cell behavior is an essential part of tissue and organ morphogenesis during embryonic development, as well as of various disease processes, such as cancer. In contrast to many in vitro studies of collective cell migration, most cases of in vivo collective cell migration involve rather small groups of cells, with large sheets of migrating cells being less common. The vast majority of theoretical descriptions of collective cell behavior focus on large numbers of cells, but fail to accurately capture the dynamics of small groups of cells. Here we introduce a low-dimensional theoretical description that successfully captures single cell migration, cell collisions, collective dynamics in small groups of cells, and force propagation during sheet expansion, all within a common theoretical framework. Our description is derived from first principles and also includes key phenomenological aspects of cell migration that control the dynamics of traction forces. Among other results, we explain the counter-intuitive observations that pairs of cells repel each other upon collision while they behave in a coordinated manner within larger clusters.

The biological default state of cell proliferation with variation and motility, a fundamental principle for a theory of organisms.

PubMed

Soto, Ana M; Longo, Giuseppe; Montévil, Maël; Sonnenschein, Carlos

2016-10-01

The principle of inertia is central to the modern scientific revolution. By postulating this principle Galileo at once identified a pertinent physical observable (momentum) and a conservation law (momentum conservation). He then could scientifically analyze what modifies inertial movement: gravitation and friction. Inertia, the default state in mechanics, represented a major theoretical commitment: there is no need to explain uniform rectilinear motion, rather, there is a need to explain departures from it. By analogy, we propose a biological default state of proliferation with variation and motility. From this theoretical commitment, what requires explanation is proliferative quiescence, lack of variation, lack of movement. That proliferation is the default state is axiomatic for biologists studying unicellular organisms. Moreover, it is implied in Darwin's "descent with modification". Although a "default state" is a theoretical construct and a limit case that does not need to be instantiated, conditions that closely resemble unrestrained cell proliferation are readily obtained experimentally. We will illustrate theoretical and experimental consequences of applying and of ignoring this principle. Copyright © 2016 Elsevier Ltd. All rights reserved.

The biological default state of cell proliferation with variation and motility, a fundamental principle for a theory of organisms

PubMed Central

SOTO, ANA M.; LONGO, GIUSEPPE; Montévil, Maël; SONNENSCHEIN, CARLOS

2017-01-01

The principle of inertia is central to the modern scientific revolution. By postulating this principle Galileo at once identified a pertinent physical observable (momentum) and a conservation law (momentum conservation). He then could scientifically analyze what modifies inertial movement: gravitation and friction. Inertia, the default state in mechanics, represented a major theoretical commitment: there is no need to explain uniform rectilinear motion, rather, there is a need to explain departures from it. By analogy, we propose a biological default state of proliferation with variation and motility. From this theoretical commitment, what requires explanation is proliferative quiescence, lack of variation, lack of movement. That proliferation is the default state is axiomatic for biologists studying unicellular organisms. Moreover, it is implied in Darwin’s “descent with modification”. Although a “default state” is a theoretical construct and a limit case that does not need to be instantiated, conditions that closely resemble unrestrained cell proliferation are readily obtained experimentally. We will illustrate theoretical and experimental consequences of applying and of ignoring this principle. PMID:27381480

Potential calculation of rural settlements consolidation: a case study of Tianchang City in Anhui Province

NASA Astrophysics Data System (ADS)

Zhao, Xiaofeng; Huang, Xianjin; Li, Li; Fan, Jing

2011-02-01

Rural settlements consolidation plays an important role for improving the rural residential habitation, and increasing the intensive land use. This paper aims to analyze the current situation, features and problems of rural settlements, and calculate the theoretical and realistic potential of rural settlements consolidation in Tianchang City, in order to provide references for new round of land use planning. Methods of field survey, hierarchy analysis, land targets per capita, modified coefficient on limited conditions and GIS is employed. The results indicate that: (1) The total area of rural settlements was 15,496.31hm2 in 2005, and the area of rural settlements per capita was 332.66m2, far more than standard of 150m2. (2) The comprehensive modified coefficient in 15 towns is from 0.47 to 0.96, which indicates the ability and possibility of the realization of theoretical potential. (3) The theoretical potential is 9,746.09 hm2 and the realistic potential is 7,124.94hm2 from 2005 to 2020. (4) The spatial distribution between rate of theoretical potential and realistic potential is incompletely consistent.

Normal modes of synchronous rotation

NASA Astrophysics Data System (ADS)

Varadi, Ferenc; Musotto, Susanna; Moore, William; Schubert, Gerald

2005-07-01

The dynamics of synchronous rotation and physical librations are revisited in order to establish a conceptually simple and general theoretical framework applicable to a variety of problems. Our motivation comes from disagreements between the results of numerical simulations and those of previous theoretical studies, and also because different theoretical studies disagree on basic features of the dynamics. We approach the problem by decomposing the orientation matrix of the body into perfectly synchronous rotation and deviation from the equilibrium state. The normal modes of the linearized equations are computed in the case of a circular satellite orbit, yielding both the periods and the eigenspaces of three librations. Libration in longitude decouples from the other two, vertical modes. There is a fast vertical mode with a period very close to the average rotational period. It corresponds to tilting the body around a horizontal axis while retaining nearly principal-axis rotation. In the inertial frame, this mode appears as nutation and free precession. The other vertical mode, a slow one, is the free wobble. The effects of the nodal precession of the orbit are investigated from the point of view of Cassini states. We test our theory using numerical simulations of the full equations of the dynamics and discuss the disagreements among our study and previous ones. The numerical simulations also reveal that in the case of eccentric orbits large departures from principal-axis rotation are possible due to a resonance between free precession and wobble. We also revisit the history of the Moon's rotational state and show that it switched from one Cassini state to another when it was at 46.2 Earth radii. This number disagrees with the value 34.2 derived in a previous study.

Theoretical calculation of coherent Laue-case conversion between x-rays and ALPs for an x-ray light-shining-through-a-wall experiment

NASA Astrophysics Data System (ADS)

Yamaji, T.; Yamazaki, T.; Tamasaku, K.; Namba, T.

2017-12-01

Single crystals have high atomic electric fields as much as 1 011 V /m , which correspond to magnetic fields of ˜103 T . These fields can be utilized to convert x-rays into axionlike particles (ALPs) coherently similar to x-ray diffraction. In this paper, we perform the first theoretical calculation of the Laue-case conversion in crystals based on the Darwin dynamical theory of x-ray diffraction. The calculation shows that the Laue-case conversion has longer interaction length than the Bragg case, and that ALPs in the keV range can be resonantly converted by tuning an incident angle of x-rays. ALPs with mass up to O (10 keV ) can be searched by light-shining-through-a-wall (LSW) experiments at synchrotron x-ray facilities.

Case studies, cross-site comparisons, and the challenge of generalization: comparing agent-based models of land-use change in frontier regions

PubMed Central

Parker, Dawn C.; Entwisle, Barbara; Rindfuss, Ronald R.; Vanwey, Leah K.; Manson, Steven M.; Moran, Emilio; An, Li; Deadman, Peter; Evans, Tom P.; Linderman, Marc; Rizi, S. Mohammad Mussavi; Malanson, George

2009-01-01

Cross-site comparisons of case studies have been identified as an important priority by the land-use science community. From an empirical perspective, such comparisons potentially allow generalizations that may contribute to production of global-scale land-use and land-cover change projections. From a theoretical perspective, such comparisons can inform development of a theory of land-use science by identifying potential hypotheses and supporting or refuting evidence. This paper undertakes a structured comparison of four case studies of land-use change in frontier regions that follow an agent-based modeling approach. Our hypothesis is that each case study represents a particular manifestation of a common process. Given differences in initial conditions among sites and the time at which the process is observed, actual mechanisms and outcomes are anticipated to differ substantially between sites. Our goal is to reveal both commonalities and differences among research sites, model implementations, and ultimately, conclusions derived from the modeling process. PMID:19960107

Case studies, cross-site comparisons, and the challenge of generalization: comparing agent-based models of land-use change in frontier regions.

PubMed

Parker, Dawn C; Entwisle, Barbara; Rindfuss, Ronald R; Vanwey, Leah K; Manson, Steven M; Moran, Emilio; An, Li; Deadman, Peter; Evans, Tom P; Linderman, Marc; Rizi, S Mohammad Mussavi; Malanson, George

2008-01-01

Cross-site comparisons of case studies have been identified as an important priority by the land-use science community. From an empirical perspective, such comparisons potentially allow generalizations that may contribute to production of global-scale land-use and land-cover change projections. From a theoretical perspective, such comparisons can inform development of a theory of land-use science by identifying potential hypotheses and supporting or refuting evidence. This paper undertakes a structured comparison of four case studies of land-use change in frontier regions that follow an agent-based modeling approach. Our hypothesis is that each case study represents a particular manifestation of a common process. Given differences in initial conditions among sites and the time at which the process is observed, actual mechanisms and outcomes are anticipated to differ substantially between sites. Our goal is to reveal both commonalities and differences among research sites, model implementations, and ultimately, conclusions derived from the modeling process.

The epistemically virtuous clinician.

PubMed

Marcum, James A

2009-01-01

Today, modern Western medicine is facing a quality-of-care crisis that is undermining the patient-physician relationship. In this paper, a notion of the epistemically virtuous clinician is proposed in terms of both the reliabilist and responsibilist versions of virtue epistemology, in order to help address this crisis. To that end, a clinical case study from the literature is first reconstructed. The reliabilist intellectual virtues, including the perceptual and conceptual virtues, are then discussed and applied to the case study. Next, a similar method is employed to examine the responsibilist intellectual virtues, including curiosity, courage, honesty, and humility, and to apply them to the case study. To round out the discussion, the love of knowledge and both theoretical and practical wisdom are explored and applied to the case study. The paper concludes with a brief discussion of how the notion of an epistemically virtuous clinician addresses the quality-of-care crisis, in terms of the connection between ethical and intellectual virtues, and of the notion's implications for medical education.

Encountering Culture through Gender Norms in International Education: The Case of Volunteers in Ecuador

ERIC Educational Resources Information Center

McGivern, Martha

2012-01-01

Demonstrating how international education programs can be used to study theoretical issues relevant to comparative education, this article reports on a scholarly analysis of 83 handover letters written by US participants in a volunteer program in Ecuador to their incoming counterparts between 2006 and 2010. It applies Swidler's notion of…

Student-to-Student Interaction Revisited: A Case Study of Working Adult Business Students in Online Courses

ERIC Educational Resources Information Center

Kellogg, Deborah L.; Smith, Marlene A.

2009-01-01

Faculty teaching in online environments are universally encouraged to incorporate a variety of student-to-student learning activities into their courses. Although there is a body of both theoretical and empirical work supporting this, adult professional students participating in an online MBA program at an urban business school reported being at…

Peers as Teachers in Physical Education Hip Hop Classes in Finnish High School

ERIC Educational Resources Information Center

Nurmi, Anna-Maria; Kokkonen, Marja

2015-01-01

In this case study, theoretically rooted in peer-assisted learning (PAL), ten female high school students, acting as peer teachers, taught hip hop dance in a voluntary physical education course. The data, derived from questionnaires and interviews with the peer teachers, were analysed using content analysis. The results showed that the peer…

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

ERIC Educational Resources Information Center

Sullivan, Pamela; McCartney, Holly

2017-01-01

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

Identity Construction and Negotiation within and across School Communities: The Case of One English-as-a-New-Language (ENL) Student

ERIC Educational Resources Information Center

Chen, Xiaoning

2010-01-01

Through a theoretical framework that builds on constructs of identity, community of practice, power relations, and investment (Blackledge & Pavlenko, 2001; Gee, 2001; Norton, 2000; Peirce, 1995; Wenger, 1998), this educational ethnographic study (Preissle, 1999) explores one English-as-a-new-language (ENL) student's identities within and across…

Rap Music Literacy: A Case Study of Millennial Audience Reception to Rap Lyrics Depicting Independent Women

ERIC Educational Resources Information Center

Moody-Ramirez, Mia; Scott, Lakia M.

2015-01-01

Using a feminist lens and a constructivist approach as the theoretical framework, we used rap lyrics and videos to help college students explore mass media's representation of the "independent" Black woman and the concept of "independence" in general. Students must be able to formulate their own concept of independence to…

Working with Cultural-Historical Activity Theory and Critical Realism to Investigate and Expand Farmer Learning in Southern Africa

ERIC Educational Resources Information Center

Mukute, Mutizwa; Lotz-Sisitka, Heila

2012-01-01

This article uses the theoretical and methodological tools of cultural historical activity theory and critical realism to examine three case studies of the introduction and expansion of sustainable agricultural practices in southern Africa. The article addresses relevant issues in the field of agricultural extension, which lacks a theoretical…

Study of solid rocket motor for a space shuttle booster. Appendix A: SRM water entry loads

NASA Technical Reports Server (NTRS)

1972-01-01

An analysis of the water entry loads imposed on the reusable solid propellant rocket engine of the space shuttle following parachute descent is presented. The cases discussed are vertical motion, horizontal motion, and motion after penetration. Mathematical models, diagrams, and charts are included to support the theoretical considerations.

An Investigation of Information-Seeking Behaviour of Geography Teachers for an Information Service Intervention: The Case of Lesotho

ERIC Educational Resources Information Center

Bitso, Constance; Fourie, Ina

2012-01-01

Introduction: This study investigates the information needs and information-seeking patterns of secondary level geography teachers in Lesotho to guide the design and implementation of an information service for these teachers. Leckie, Pettigrew and Sylvain's model of professionals' information-seeking served as a theoretical framework but was…

An Approach for Selecting a Theoretical Framework for the Evaluation of Training Programs

ERIC Educational Resources Information Center

Tasca, Jorge Eduardo; Ensslin, Leonardo; Ensslin, Sandra Rolim; Alves, Maria Bernardete Martins

2010-01-01

Purpose: This research paper proposes a method for selecting references related to a research topic, and seeks to exemplify it for the case of a study evaluating training programs. The method is designed to identify references with high academic relevance in databases accessed via the internet, using a bibliometric analysis to sift the selected…

Income Distribution and Colombian Rural Education. Program of Development Studies Paper No. 54.

ERIC Educational Resources Information Center

Thirsk, Wayne R.

Education policies can discriminate against different income groups through the supply of educational opportunities. Expansion of primary school facilities in neglected areas, in this case rural Colombia, may have a high rate of return as well as raise relative incomes of poor people. A simple theoretical model deals with linkages between…

Teacher Training and the Education of Black Children: Bringing Color into Difference. Routledge Research in Education

ERIC Educational Resources Information Center

Maylor, Uvanney

2014-01-01

This book is designed to challenge dominant educational discourses on the underachievement of Black children and to engender new understandings in initial teacher education (ITE) about Black children's education and achievement. Based in empirical case study work and theoretical insights drawn from Bourdieu, hooks, Freire, and Giroux, Maylor calls…