WorldWideScience

Sample records for modelling coaching scaffolding

  1. Coaching Conversations: Enacting Instructional Scaffolding

    Science.gov (United States)

    Gibson, Sharan A.

    2011-01-01

    This study analyzed coaching conversations and interviews of four coach/teacher partnerships for specific ways in which kindergarten and first-grade teachers, and coaches, conceptualized instructional scaffolding for guided reading. Interview transcripts were coded for coaches' and teachers' specific hypotheses/ ideas regarding instructional…

  2. A competence executive coaching model

    Directory of Open Access Journals (Sweden)

    Pieter Koortzen

    2010-03-01

    Full Text Available Orientation: Psychologists in industry are increasingly required to provide executive coaching services in their organisations or as part of their consulting services. An evaluation of coaching models as well as the development needs of individuals being trained as coaches, both locally and internationally, has led the authors to believe that there is a need for a competence executive coaching model.Research purpose: The purpose of this article is to address the training and development needs of these consulting psychologists by presenting a competence executive coaching model for the planning, implementation and evaluation of executive coaching interventions.Research design, approach and method: The study was conducted while one of the authors was involved in teaching doctoral students in consulting psychology and executive coaching, specifically in the USA. The approach involved a literature review of executive coaching models and a qualitative study using focus groups to develop and evaluate the competence executive coaching model.Main findings: The literature review provided scant evidence of competence executive coaching models and there seems to be a specific need for this in the training of coaches in South Africa. Hence the model that was developed is an attempt to provide trainers with a structured model for the training of coaches.Contribution/value-add: The uniqueness of this competence model is not only described in terms of the six distinct coaching intervention phases, but also the competencies required in each.

  3. Coaching Model + Clinical Playbook = Transformative Learning.

    Science.gov (United States)

    Fletcher, Katherine A; Meyer, Mary

    2016-01-01

    Health care employers demand that workers be skilled in clinical reasoning, able to work within complex interprofessional teams to provide safe, quality patient-centered care in a complex evolving system. To this end, there have been calls for radical transformation of nursing education including the development of a baccalaureate generalist nurse. Based on recommendations from the American Association of Colleges of Nursing, faculty concluded that clinical education must change moving beyond direct patient care by applying the concepts associated with designer, manager, and coordinator of care and being a member of a profession. To accomplish this, the faculty utilized a system of focused learning assignments (FLAs) that present transformative learning opportunities that expose students to "disorienting dilemmas," alternative perspectives, and repeated opportunities to reflect and challenge their own beliefs. The FLAs collected in a "Playbook" were scaffolded to build the student's competencies over the course of the clinical experience. The FLAs were centered on the 6 Quality and Safety Education for Nurses competencies, with 2 additional concepts of professionalism and systems-based practice. The FLAs were competency-based exercises that students performed when not assigned to direct patient care or had free clinical time. Each FLA had a lesson plan that allowed the student and faculty member to see the competency addressed by the lesson, resources, time on task, student instructions, guide for reflection, grading rubric, and recommendations for clinical instructor. The major advantages of the model included (a) consistent implementation of structured learning experiences by a diverse teaching staff using a coaching model of instruction; (b) more systematic approach to present learning activities that build upon each other; (c) increased time for faculty to interact with students providing direct patient care; (d) guaranteed capture of selected transformative

  4. Coaching

    DEFF Research Database (Denmark)

    Pedersen, Elsebet Frydendal

    kravet om ansvar for egen læring nye krav til lærerne på uddannelsesstederne, til pædagogikken og til læringsprocessen. Rapporten er en sammenskrivning af baggrundsviden om coaching og teorier, der relaterer sig til dette, især læringsprocesser. Derudover indgår nogle konkrete anvisninger til...... gennemførselen af selve coaching forløbet....

  5. Coaching

    DEFF Research Database (Denmark)

    Pedersen, Elsebet Frydendal

    kravet om ansvar for egen læring nye krav til lærerne på uddannelsesstederne, til pædagogikken og til læringsprocessen. Rapporten er en sammenskrivning af baggrundsviden om coaching og teorier, der relaterer sig til dette, især læringsprocesser. Derudover indgår nogle konkrete anvisninger til...... gennemførselen af selve coaching forløbet....

  6. Lessons Learned Coaching Teachers in Behavior Management: The PBIS"plus" Coaching Model

    Science.gov (United States)

    Hershfeldt, Patricia A.; Pell, Karen; Sechrest, Richard; Pas, Elise T.; Bradshaw, Catherine P.

    2012-01-01

    There is growing interest in coaching as a means of promoting professional development and the use of evidence-based practices in schools. This article describes the PBIS"plus" coaching model used to provide technical assistance for classroom- and school-wide behavior management to elementary schools over the course of 3 years. This Tier…

  7. Classroom Strategies Coaching Model: Integration of Formative Assessment and Instructional Coaching

    Science.gov (United States)

    Reddy, Linda A.; Dudek, Christopher M.; Lekwa, Adam

    2017-01-01

    This article describes the theory, key components, and empirical support for the Classroom Strategies Coaching (CSC) Model, a data-driven coaching approach that systematically integrates data from multiple observations to identify teacher practice needs and goals, design practice plans, and evaluate progress towards goals. The primary aim of the…

  8. Lessons Learned Coaching Teachers in Behavior Management: The PBIS"plus" Coaching Model

    Science.gov (United States)

    Hershfeldt, Patricia A.; Pell, Karen; Sechrest, Richard; Pas, Elise T.; Bradshaw, Catherine P.

    2012-01-01

    There is growing interest in coaching as a means of promoting professional development and the use of evidence-based practices in schools. This article describes the PBIS"plus" coaching model used to provide technical assistance for classroom- and school-wide behavior management to elementary schools over the course of 3 years. This Tier…

  9. Supporting universal prevention programs: a two-phased coaching model.

    Science.gov (United States)

    Becker, Kimberly D; Darney, Dana; Domitrovich, Celene; Keperling, Jennifer Pitchford; Ialongo, Nicholas S

    2013-06-01

    Schools are adopting evidence-based programs designed to enhance students' emotional and behavioral competencies at increasing rates (Hemmeter et al. in Early Child Res Q 26:96-109, 2011). At the same time, teachers express the need for increased support surrounding implementation of these evidence-based programs (Carter and Van Norman in Early Child Educ 38:279-288, 2010). Ongoing professional development in the form of coaching may enhance teacher skills and implementation (Noell et al. in School Psychol Rev 34:87-106, 2005; Stormont et al. 2012). There exists a need for a coaching model that can be applied to a variety of teacher skill levels and one that guides coach decision-making about how best to support teachers. This article provides a detailed account of a two-phased coaching model with empirical support developed and tested with coaches and teachers in urban schools (Becker et al. 2013). In the initial universal coaching phase, all teachers receive the same coaching elements regardless of their skill level. Then, in the tailored coaching phase, coaching varies according to the strengths and needs of each teacher. Specifically, more intensive coaching strategies are used only with teachers who need additional coaching supports, whereas other teachers receive just enough support to consolidate and maintain their strong implementation. Examples of how coaches used the two-phased coaching model when working with teachers who were implementing two universal prevention programs (i.e., the PATHS curriculum and PAX Good Behavior Game [PAX GBG]) provide illustrations of the application of this model. The potential reach of this coaching model extends to other school-based programs as well as other settings in which coaches partner with interventionists to implement evidence-based programs.

  10. Coaching: a new model for academic and career achievement

    Science.gov (United States)

    Deiorio, Nicole M.; Carney, Patricia A.; Kahl, Leslie E.; Bonura, Erin M.; Juve, Amy Miller

    2016-01-01

    Background Individualized education is emerging as an innovative model for physician training. This requires faculty coaching to guide learners’ achievements in academic performance, competency development, and career progression. In addition, coaching can foster self-reflection and self-monitoring using a data-guided approach to support lifelong learning. Context Coaching differs from mentoring or advising, and its application in medical education is novel. Because of this, definitions of the concept and the constructs of coaching as applied to medical education are needed to accurately assess the coaching relationship and coaching processes. These can then be linked to learner outcomes to inform how coaching serves as a modifier of academic and competency achievement and career satisfaction. Innovation We developed definitions and constructs for academic coaching in medical education based on review of existing education and non-education coaching literature. These constructs focus on 1) establishing relationship principles, 2) conducting learner assessments, 3) developing and implementing an action plan, and 4) assessing results and revising plans accordingly. Implication Coaching is emerging as an important construct in the context of medical education. This article lays the vital groundwork needed for evaluation of coaching programs aimed at producing outstanding physicians. PMID:27914193

  11. Coaching: a new model for academic and career achievement

    Directory of Open Access Journals (Sweden)

    Nicole M. Deiorio

    2016-12-01

    Full Text Available Background: Individualized education is emerging as an innovative model for physician training. This requires faculty coaching to guide learners’ achievements in academic performance, competency development, and career progression. In addition, coaching can foster self-reflection and self-monitoring using a data-guided approach to support lifelong learning. Context: Coaching differs from mentoring or advising, and its application in medical education is novel. Because of this, definitions of the concept and the constructs of coaching as applied to medical education are needed to accurately assess the coaching relationship and coaching processes. These can then be linked to learner outcomes to inform how coaching serves as a modifier of academic and competency achievement and career satisfaction. Innovation: We developed definitions and constructs for academic coaching in medical education based on review of existing education and non-education coaching literature. These constructs focus on 1 establishing relationship principles, 2 conducting learner assessments, 3 developing and implementing an action plan, and 4 assessing results and revising plans accordingly. Implication: Coaching is emerging as an important construct in the context of medical education. This article lays the vital groundwork needed for evaluation of coaching programs aimed at producing outstanding physicians.

  12. From Practice to Praksis - models in Danish coaching psychology

    DEFF Research Database (Denmark)

    Spaten, Ole Michael; Kyndesen, Anna Imer; Palmer, Stephen

    2012-01-01

    The article gives a brief outline of the broadness of coaching models and moves on to describe in detail the model PRAKSIS, which has been developed from the English language PRACTICE model. This model is considered to be a key tool in solution-focused coaching and therapy. Thus, PRAKSIS...

  13. Lessons Learned Coaching Teachers in Behavior Management: The PBISplus Coaching Model.

    Science.gov (United States)

    Hershfeldt, Patricia A; Pell, Karen; Sechrest, Richard; Pas, Elise T; Bradshaw, Catherine P

    2012-10-01

    There is growing interest in coaching as a means of promoting professional development and the use of evidence-based practices in schools. This paper describes the PBISplus coaching model used to provide technical assistance for classroom- and school-wide behavior management to elementary schools over the course of three years. This tier-two coaching model was implemented within the context of school-wide Positive Behavioral Interventions and Supports (PBIS) and tested in a 42-school randomized controlled trial. We summarize some of the lessons learned by coaches regarding their efforts to gain access to the administrators, teachers, and student support staff in order to effect change and improve student outcomes. We conclude with a discussion of ways to successfully collaborate with teachers to promote effective classroom- and school-wide behavior management.

  14. The Gradual Increase of Responsibility Model: Coaching for Teacher Change

    Science.gov (United States)

    Collet, Vicki S.

    2012-01-01

    This study examines the gradual increase of responsibility (GIR) model for teacher coaching (Collet, 2008), an adaptation of Pearson and Gallagher's (1983) Gradual Release of Responsibility model. In GIR, instructional coaches model, make recommendations, ask probing questions, affirm teachers' appropriate decisions, and praise in order to provide…

  15. Coaching

    DEFF Research Database (Denmark)

    Amhøj, Christa Breum

    2008-01-01

    Coaching vinder mere og mere indpas i den danske folkeskole og udpeges som løsning på forskellige problemer. Eksempelvis som løsning på hvordan skolelederen kan sætte sig fri fra irrationelle og automatpilotiske reaktionsmønstre og lede sine medarbejdere til at lede sig selv; som løsning på hvordan...... for statiske og kontrollerende læringsstrukturer. Artiklen påstår, at det fælles for disse ledelsesmæssige problemer er, at coaching udpeges som en styringsteknologi, der kan bruges til at styre det mulighedsrum, der skabes, når den traditionelle skole bliver erstattet af mere komplekse tilblivelses- og...... disciplineringsformer og nye krav fra omverden. Der er en mængde forskellige styringsteknologier, der konkurrerer om at skabe og styre de indbyggere, der søger at befolke den tomme plads, der opstår, når den traditionelle skole trækkes tilbage. Artiklen påstår, at coaching er en styringsteknologi, der muliggør ledelse...

  16. Coaching

    DEFF Research Database (Denmark)

    Amhøj, Christa Breum

    2008-01-01

    Coaching vinder mere og mere indpas i den danske folkeskole og udpeges som løsning på forskellige problemer. Eksempelvis som løsning på hvordan skolelederen kan sætte sig fri fra irrationelle og automatpilotiske reaktionsmønstre og lede sine medarbejdere til at lede sig selv; som løsning på hvordan...... for statiske og kontrollerende læringsstrukturer. Artiklen påstår, at det fælles for disse ledelsesmæssige problemer er, at coaching udpeges som en styringsteknologi, der kan bruges til at styre det mulighedsrum, der skabes, når den traditionelle skole bliver erstattet af mere komplekse tilblivelses- og...... disciplineringsformer og nye krav fra omverden. Der er en mængde forskellige styringsteknologier, der konkurrerer om at skabe og styre de indbyggere, der søger at befolke den tomme plads, der opstår, når den traditionelle skole trækkes tilbage. Artiklen påstår, at coaching er en styringsteknologi, der muliggør ledelse...

  17. Coaching Coaches

    DEFF Research Database (Denmark)

    Hedin, G.; Bendix, Lars Gotfred; Magnusson, B.

    2003-01-01

    We have developed a tandem of undergraduate courses for teaching XP and coaching of XP teams. This paper focuses on the coaching course and the coaching practices we have developed. The tandem of courses enables us to give a challenging and interesting course for the coaches, and, at the same tim...

  18. Personal Coaching: Reflection on a Model for Effective Learning

    Science.gov (United States)

    Griffiths, Kerryn

    2015-01-01

    The article "Personal Coaching: A Model for Effective Learning" (Griffiths, 2006) appeared in the "Journal of Learning Design" Volume 1, Issue 2 in 2006. Almost ten years on, Kerryn Griffiths reflects upon her original article. Specifically, Griffiths looks back at the combined coaching-learning model she suggested in her…

  19. A Constructivist Model of Mentoring, Coaching, and Facilitating Online Discussions

    Science.gov (United States)

    Murphy, Karen L.; Mahoney, Sue E.; Chen, Chun-Ying; Mendoza-Diaz, Noemi V.; Yang, Xiaobing

    2005-01-01

    This case study of an online graduate course determines the message characteristics of the instructor, volunteer teaching assistants, and students in online discussions, and proposes a mentoring, coaching, and facilitating model for online discussions. The researchers developed a coding system based on the literature of mentoring, coaching, and…

  20. Development of a career coaching model for medical students

    Directory of Open Access Journals (Sweden)

    Yera Hur

    2016-03-01

    Full Text Available Purpose: Deciding on a future career path or choosing a career specialty is an important academic decision for medical students. The purpose of this study is to develop a career coaching model for medical students. Methods: This research was carried out in three steps. The first step was systematic review of previous studies. The second step was a need assessment of medical students. The third step was a career coaching model using the results acquired from the researched literature and the survey. Results: The career coaching stages were defined as three big phases: The career coaching stages were defined as the “crystallization” period (Pre-medical year 1 and 2, “specification” period (medical year 1 and 2, and “implementation” period (medical year 3 and 4. Conclusion: The career coaching model for medical students can be used in programming career coaching contents and also in identifying the outcomes of career coaching programs at an institutional level.

  1. Scaffolding Mathematical Modelling with a Solution Plan

    Science.gov (United States)

    Schukajlow, Stanislaw; Kolter, Jana; Blum, Werner

    2015-01-01

    In the study presented in this paper, we examined the possibility to scaffold mathematical modelling with strategies. The strategies were prompted using an instrument called "solution plan" as a scaffold. The effects of this step by step instrument on mathematical modelling competency and on self-reported strategies were tested using…

  2. Diminishing Coaching Based on Scaffolding Theory%建架理论下的渐减指导

    Institute of Scientific and Technical Information of China (English)

    邹灿; 王劲

    2016-01-01

    M ・ David Merrill presents a new teaching strategy :diminishing coaching while elaborating his famous “First Principles of Instruction” .Scaffolding theory is based on Construction Theory of Swiss psychologist J .Piaget and Zone of Proximal Development Theory of Russian psychologist L .Vygotsky . These two theories are often applied respectively in practical teaching with some effects . This paper initially integrates scaffolding theory with diminishing coaching together , analyses the significance and teaching effects of the new integration and reflects on the present educational concept in hope of being helpful to promote students’ autonomous learning as well as providing reference for the future talents cultivation .%梅里尔教授在阐述其著名的“首要教学原理”时提出了“渐减指导”的教学策略,而建架理论则基于瑞士心理学家皮亚杰的构建主义理论和俄国心理学家维果斯基的“最近发展区”理论。这两种理论在实际教学中经常被单独使用,也取得了一定的教学效果。创造性地将建架理论与渐减指导结合起来,分析了二者融合后对教学带来的意义和影响。同时对现行的教育理念提出了看法,试图为培养学生自主学习能力提供新的教学策略,也对未来的人才培养方向进行了思考。

  3. Aspire Project - an integrated wellness coaching model facilitated by an online coaching technology

    Directory of Open Access Journals (Sweden)

    Paul Thomas Pook

    2015-10-01

    PT Aspire provides personal trainers and coaches with a powerful facilitator of client goal achievement and behaviour change. It encourages an innovative approach to coaching that considers the key elements of wellness delivered via digital technology.

  4. Coaching Academic English through Voice and Text Production Models

    Science.gov (United States)

    Greenman, Caroline

    2004-01-01

    We report on how technological developments have enabled us to change our concepts and practices regarding voice and text coaching and how this in turn has raised the level of literary competence among non-native doctoral students seeking publication in English in scientific journals. We describe models for marking, peer reviewing and coaching…

  5. A competence executive coaching model

    OpenAIRE

    Pieter Koortzen; Rudolf M. Oosthuizen

    2010-01-01

    Orientation: Psychologists in industry are increasingly required to provide executive coaching services in their organisations or as part of their consulting services. An evaluation of coaching models as well as the development needs of individuals being trained as coaches, both locally and internationally, has led the authors to believe that there is a need for a competence executive coaching model.Research purpose: The purpose of this article is to address the training and development needs...

  6. A Formative Evaluation of the Children, Youth, and Families at Risk Coaching Model

    Science.gov (United States)

    Olson, Jonathan R.; Smith, Burgess; Hawkey, Kyle R.; Perkins, Daniel F.; Borden, Lynne M.

    2016-01-01

    In this article, we describe the results of a formative evaluation of a coaching model designed to support recipients of funding through the Children, Youth, and Families at Risk (CYFAR) initiative. Results indicate that CYFAR coaches draw from a variety of types of coaching and that CYFAR principle investigators (PIs) are generally satisfied with…

  7. Diabetes coaching for individuals with type 2 diabetes: A state-of-the-science review and rationale for a coaching model.

    Science.gov (United States)

    Sherifali, Diana

    2017-01-13

    Diabetes coaching is emerging as an important role in self-management and care. The conceptualization of coaching, and how to implement and evaluate coaching has not been articulated in the literature. The aim of the study was to review the literature to: (i) identify the components of coaching using a validated framework, including the description of the role of technology; (ii) describe the implementation and evaluation measures for diabetes coaching; and (iii) propose a diabetes coaching model for future implementation. The EMBASE, MEDLINE, Cumulative Index to Nursing and Allied Health Literature (CINAHL), PsychINFO and Cochrane Central Register of Controlled Trials databases were searched from inception to January 2015. Two evaluators independently screened and extracted data from eligible studies for descriptions of coaching. Eight trials met the selection criteria, with no consistency in the core components of coaching. However, elements noted across all studies included goal setting, diabetes knowledge acquisition, individualized care, and frequent follow-up. Only two studies leveraged technology for coaching communication purposes. Diabetes coaching is an intervention that can support the ongoing and complex needs of patients; however, implementation and evaluation strategies are limited in the literature. A diabetes coaching model is presented, derived from components identified throughout the literature with direction for implementation and evaluation approaches, and optimal integration into the healthcare system.

  8. Coaching psykologi

    DEFF Research Database (Denmark)

    Spaten, Ole Michael; Imer, Anna; Palmer, Stephen

    2014-01-01

    Praksis-modellen er inspireret og udviklet på baggrund af den engelsksprogede Practice model. Modellen anvendes især som et centralt redskab for problemløsning i coaching og terapi. Men praksis modellen kan anvendes bredere og som redskab til at hjælpe coachée mod at opnå mål i coaching og især...

  9. Modeling Tissue Growth Within Nonwoven Scaffolds Pores

    Science.gov (United States)

    Church, Jeffrey S.; Alexander, David L.J.; Russell, Stephen J.; Ingham, Eileen; Ramshaw, John A.M.; Werkmeister, Jerome A.

    2011-01-01

    In this study we present a novel approach for predicting tissue growth within the pores of fibrous tissue engineering scaffolds. Thin nonwoven polyethylene terephthalate scaffolds were prepared to characterize tissue growth within scaffold pores, by mouse NR6 fibroblast cells. On the basis of measurements of tissue lengths at fiber crossovers and along fiber segments, mathematical models were determined during the proliferative phase of cell growth. Tissue growth at fiber crossovers decreased with increasing interfiber angle, with exponential relationships determined on day 6 and 10 of culture. Analysis of tissue growth along fiber segments determined two growth profiles, one with enhanced growth as a result of increased tissue lengths near the fiber crossover, achieved in the latter stage of culture. Derived mathematical models were used in the development of a software program to visualize predicted tissue growth within a pore. This study identifies key pore parameters that contribute toward tissue growth, and suggests models for predicting this growth, based on fibroblast cells. Such models may be used in aiding scaffold design, for optimum pore infiltration during the tissue engineering process. PMID:20687775

  10. Pharmacist-based health coaching: A new model of pharmacist-patient care.

    Science.gov (United States)

    Lonie, John M; Austin, Zubin; Nguyen, Rosalie; Gill, Imninder; Tsingos-Lucas, Cherie

    2016-07-15

    This paper describes a provider-patient communication process, which although not new to health care in general, is new to the pharmacy profession. Health coaching is a technique that empowers patients to make lasting health behavior changes that improve overall well-being. It provides patients with health care implementation options that better suit their lifestyle and abilities. Health coaching programs have the potential to foster better health outcomes, especially with patients who are chronically ill or represent an at risk population for medication non-adherence (e.g. elderly, patients on psychotropic medications). Other health professions (e.g. nursing and medicine) have had success with the implementation of health coaching models. For example, nurse coaching is recognized by the American Nurse Association and recent statistics show 3.1 million nurses in the U.S.A are also trained in nurse coaching. The pharmacy profession has yet to tap the patient-related benefits of health coaching. This commentary will discuss (i) The theoretical foundations of health coaching (ii) Distinctions between health coaching, motivational interviewing and traditional medication therapy counseling (iii) Training necessary for health coaching; and (iv) How pharmacists can use health coaching in practice.

  11. My Teaching Partner-Secondary: A video-based coaching model.

    Science.gov (United States)

    Gregory, A; Ruzek, E; Hafen, C A; Yee Mikami, A; Allen, J P; Pianta, R C

    2017-01-01

    In the My Teaching Partner (MTP) program, coaches engage teachers in six to nine coaching cycles across a school year. Guided by the program's theory, coaches help teachers reflect on the emotional, organizational, and instructional features of classrooms. MTP was originally developed for Pre-K and early elementary classrooms (MTP Pre-K), but the current paper focuses on the secondary school version of this program, MTP-Secondary (MTP-S), given the need for coaching models with middle and high school teachers. The paper presents the guiding theory of MTP-S and how it relates to key components of the coaching cycle. We then offer a brief synthesis of research demonstrating its effectiveness in raising achievement, promoting positive peer interactions, and reducing racial disparities in teachers' discipline practices. We provide ideas for future research that would help advance theory on the essential components of effective coaching programs in secondary schools.

  12. Social Skills Training with Children: Responsiveness to Modeling and Coaching as a Function of Peer Orientation.

    Science.gov (United States)

    Gresham, Frank M.; Nagle, Richard J.

    1980-01-01

    Coaching and modeling were equivalent procedures for teaching social skills to isolated children. The abbreviated combination of coaching and modeling did not add to the effects. Peer orientation proved to be only a relatively weak modulator of responsiveness to social skills training. (Author)

  13. Scaffolding in Complex Modelling Situations

    Science.gov (United States)

    Stender, Peter; Kaiser, Gabriele

    2015-01-01

    The implementation of teacher-independent realistic modelling processes is an ambitious educational activity with many unsolved problems so far. Amongst others, there hardly exists any empirical knowledge about efficient ways of possible teacher support with students' activities, which should be mainly independent from the teacher. The research…

  14. Perceptions of Coach-Athlete Relationship are more Important to Coaches than Athletes in Predicting Dyadic Coping and Stress Appraisals: An Actor-Partner Independence Mediation Model

    Directory of Open Access Journals (Sweden)

    Adam Robert Nicholls

    2016-03-01

    Full Text Available Most attempts to manage stress involve at least one other person, yet coping studies in sport tend to report an athlete’s individual coping strategies. There is a limited understanding of coping involving other people, particularly within sport, despite athletes potentially spending a lot of time with other people, such as their coach. Guided by the systemic-transactional model of stress and coping among couples (Bodenmann, 1995, from relationship psychology, we assessed dyadic coping, perceptions of relationship quality, and primary stress appraisals of challenge and threat among 158 coach-athlete dyads (n = 277 participants. The athletes competed at amateur (n = 123, semi-professional (n = 31, or professional levels (n = 4. Coaches and athletes from the same dyad completed a measure of dyadic coping, coach-athlete relationship, and stress appraisals. We tested an Actor-Partner Interdependence Mediation Model to account for the nonindependence of dyadic data. These actor-partner analyses revealed differences between athletes and coaches. Although the actor effects were relatively large compared to partner effects, perceptions of relationship quality demonstrated little impact on athletes. The mediating role of relationship quality was broadly as important as dyadic coping for coaches. These findings provide an insight in to how coach-athlete dyads interact to manage stress and indicate that relationship quality is of particular importance for coaches, but less important for athletes. In order to improve perceptions of relationship quality among coaches and athletes, interventions could be developed to foster positive dyadic coping among both coaches and athletes, which may also impact upon stress appraisals of challenge and threat.

  15. A comparison of two coaching approaches to enhance implementation of a recovery-oriented service model.

    Science.gov (United States)

    Deane, Frank P; Andresen, Retta; Crowe, Trevor P; Oades, Lindsay G; Ciarrochi, Joseph; Williams, Virginia

    2014-09-01

    Moving to recovery-oriented service provision in mental health may entail retraining existing staff, as well as training new staff. This represents a substantial burden on organisations, particularly since transfer of training into practice is often poor. Follow-up supervision and/or coaching have been found to improve the implementation and sustainment of new approaches. We compared the effect of two coaching conditions, skills-based and transformational coaching, on the implementation of a recovery-oriented model following training. Training followed by coaching led to significant sustained improvements in the quality of care planning in accordance with the new model over the 12-month study period. No interaction effect was observed between the two conditions. However, post hoc analyses suggest that transformational coaching warrants further exploration. The results support the provision of supervision in the form of coaching in the implementation of a recovery-oriented service model, and suggest the need to better elucidate the mechanisms within different coaching approaches that might contribute to improved care.

  16. Model of distant improvement of professional skill of the Ukrainian coaches

    Directory of Open Access Journals (Sweden)

    Petrova O.A.

    2012-03-01

    Full Text Available In article the conceptual model of organization and introduction of distant improvement of professional skill of coaches is developed and analyzed. Advantages of its introduction to coaches training, teachers and higher educational institutions which carry out a professional training for physical training and sports sphere are defined. It is developed the budgetary program project of distant improvement of professional skill of coaches on an example of National university of physical education and sports of Ukraine that consists of three stages: daily organizationally-adjusting session, independent telecommuting and daily final session with attestation.

  17. Instant Coaching.

    Science.gov (United States)

    Birch, Paul

    This book is intended to help managers coach individuals and groups; assess current performance; develop a coaching plan; keep track of whether their coaching is having the right effect; and learn how to motivate and communicate effectively. Chapters 1-3 establish what coaching is; who can coach; and who can be coached. Chapter 4 lays coaching out…

  18. Un modelo de "coaching" en directivos escolares Modelo de "coaching" na gestão escolar A Model for Coaching School Administrators

    Directory of Open Access Journals (Sweden)

    Alfredo Gorrochotegui-Martell

    2011-08-01

    Full Text Available Se describe cómo se realizó un "coaching" de liderazgo a 28 directivos escolares de cuatro escuelas municipales, durante un año, con todas las herramientas y procedimientos utilizados. Se utilizó una parte del modelo de competencias de liderazgo de Cardona y García-Lombardía (2009, el cual se adaptó para el ámbito escolar. El mismo sugiere un compendio de 19 competencias, con sus comportamientos característicos, así como un formato denominado "hoja de avance", que se utilizó para ir desarrollando las competencias en cada directivo. Las competencias más trabajadas individualmente fueron comunicación, gestión del tiempo y gestión de conflictos. La evaluación mostró que la experiencia ayudó a modificar conductas, lo cual permitió gestionar mejor el centro escolar.Descrição de um "coaching" de liderança emvinte e oito diretivos de quatro escolas-municipais durante um ano, bem como as ferramentase os procedimentos utilizados. Aplicou-se uma parte do modelo de competências de liderança de Cardona e Garcia-Lombardia(2009, adaptado para a escola. O modelo propõe 19 competições com os seus comportamentos característicos e um formato chamado Roteiro, usado para desenvolvimento de competências em cada diretivo. As competências mais reforçadas foram comunicação, gestão do tempo e gestão de conflitos. A avaliação mostrou que o ensaio ajudou a alterar comportamentos, permitindo uma melhor gestão da escola.The article offers a description of how 28 school administrators at four municipal schools were coached during a period of one year, and the tools and procedures employed to that end. A portion of the leadership skills model developed by Cardona and García-Lombardía (2009 was adapted to the school environment and applied. It suggests a set of 19 skills and their characteristic behavior, along with a form know as the "progress sheet," which was used to develop the skills of each administrator. Communication, time

  19. Managing the health of the elite athlete: a new integrated performance health management and coaching model

    Science.gov (United States)

    Dijkstra, H Paul; Pollock, N; Chakraverty, R; Alonso, J M

    2014-01-01

    Elite athletes endeavour to train and compete even when ill or injured. Their motivation may be intrinsic or due to coach and team pressures. The sports medicine physician plays an important role to risk-manage the health of the competing athlete in partnership with the coach and other members of the support team. The sports medicine physician needs to strike the right ethical and operational balance between health management and optimising performance. It is necessary to revisit the popular delivery model of sports medicine and science services to elite athletes based on the current reductionist multispecialist system lacking in practice an integrated approach and effective communication. Athlete and coach in isolation or with a member of the multidisciplinary support team, often not qualified or experienced to do so, decide on the utilisation of services and how to apply the recommendations. We propose a new Integrated Performance Health Management and Coaching model based on the UK Athletics experience in preparation for the London Olympic and Paralympic Games. The Medical and Coaching Teams are managed by qualified and experienced individuals operating in synergy towards a common performance goal, accountable to a Performance Director and ultimately to the Board of Directors. We describe the systems, processes and implementation strategies to assist the athlete, coach and support teams to continuously monitor and manage athlete health and performance. These systems facilitate a balanced approach to training and competing decisions, especially while the athlete is ill or injured. They take into account the best medical advice and athlete preference. This Integrated Performance Health Management and Coaching model underpinned the Track and Field Gold Medal performances at the London Olympic and Paralympic Games. PMID:24620040

  20. Managing the health of the elite athlete: a new integrated performance health management and coaching model.

    Science.gov (United States)

    Dijkstra, H Paul; Pollock, N; Chakraverty, R; Alonso, J M

    2014-04-01

    Elite athletes endeavour to train and compete even when ill or injured. Their motivation may be intrinsic or due to coach and team pressures. The sports medicine physician plays an important role to risk-manage the health of the competing athlete in partnership with the coach and other members of the support team. The sports medicine physician needs to strike the right ethical and operational balance between health management and optimising performance. It is necessary to revisit the popular delivery model of sports medicine and science services to elite athletes based on the current reductionist multispecialist system lacking in practice an integrated approach and effective communication. Athlete and coach in isolation or with a member of the multidisciplinary support team, often not qualified or experienced to do so, decide on the utilisation of services and how to apply the recommendations. We propose a new Integrated Performance Health Management and Coaching model based on the UK Athletics experience in preparation for the London Olympic and Paralympic Games. The Medical and Coaching Teams are managed by qualified and experienced individuals operating in synergy towards a common performance goal, accountable to a Performance Director and ultimately to the Board of Directors. We describe the systems, processes and implementation strategies to assist the athlete, coach and support teams to continuously monitor and manage athlete health and performance. These systems facilitate a balanced approach to training and competing decisions, especially while the athlete is ill or injured. They take into account the best medical advice and athlete preference. This Integrated Performance Health Management and Coaching model underpinned the Track and Field Gold Medal performances at the London Olympic and Paralympic Games.

  1. Building successful student-athlete coach relationships: examining coaching practices and commitment to the coach.

    Science.gov (United States)

    Rezania, Davar; Gurney, Robert

    2014-01-01

    In this study we utilized the concept of commitment to explain the impact of coaching practices on student-athlete's behaviour. We examined the impact of commitment to the coach on the coaching outcome of in-role behaviour, and the influence of coaching practices, of information sharing, training, and encouraging teamwork, on the formation of relationships. We adopted measures from the organizational behaviour literature and surveyed student-athletes at two universities in Canada. The sample included data from 165 student-athletes from two universities. Results from structural equation modeling indicate support for the effect of coaching practices on commitment to the coach. Results also support the effect of commitment to the coach on the student-athletes' role behaviour and performance. By showing that coaching practices impact commitment to the coach, and that commitment to the coach impacts student-athlete role behaviour and performance, the findings have important implications for a better understanding of the determinants of coaches' and athletes' performance. The managerial significance of this research rests in the insight provided into how coaching practices influence athlete's behaviour through commitment to the coach. This study contributes to the literature on coach-athlete relationship within universities and colleges by applying the concept of commitment to the coach. This helps diversity research approaches to understanding coach-athlete relationships and extends prior research on commitment by looking at the context of the relationship between the student-athlete and their coach.

  2. Managerial Coaching Model and the Impact of its Activities on Employee Satisfaction and Company Performance

    Directory of Open Access Journals (Sweden)

    Petra Cajnko

    2014-12-01

    Full Text Available The article tries to answer the research question: What is the potential additive effect on employee satisfaction and overall company performance when using managerial coaching model and its activities? The purpose of the article has been to form a model of managerial coaching and of the influence of its activities on employee satisfaction and overall company performance based on theory review and field study results. We have confirmed the two main hypotheses and all the secondary hypotheses with two empirical studies, one focused on the managers and the other on the employees. The topic is of practical value and it will help managers in Slovenia and abroad to understand the effect of the activities of coaching on employee satisfaction and overall company performance.

  3. Existential Coaching Psychology

    Directory of Open Access Journals (Sweden)

    Darren Langdridge

    2012-10-01

    Full Text Available In this article I seek to elaborate a model of existential coaching psychology that is both grounded in existentialphenomenological philosophy but also informed by work in coaching. To date, many attempts to develop anexistential approach to coaching have – in my view – described an approach to coaching that is either indistinguishablefrom existential counselling and psychotherapy or a rather crude form of technical eclecticism.In this article, I discuss the key elements of existential coaching, as I understand it, and the need to modify theexistential therapeutic approach for coaching practise. To this end, I draw on extant work on coaching and,in particular, the need for both a goal and solution directed approach if an existential model of psychologicalcoaching is going to provide the basis for effective practise.

  4. Mentoring and coaching: a model guiding professional nurses to executive success.

    Science.gov (United States)

    Thompson, Renee; Wolf, Debra M; Sabatine, Janice M

    2012-11-01

    Although many nurses aspire to executive positions, they lack the knowledge, support, and guidance to handle the challenges. To succeed at the executive level, ongoing deliberate skill development coupled with support is crucial across a nurse's career trajectory. This article introduces a model emphasizing the importance of mentoring and/or coaching for the aspiring executive nurse leader.

  5. Kollegial Coaching

    DEFF Research Database (Denmark)

    Lystbæk, Christian Tang

    Bidraget sammenfatter pointerne fra min ph.d.-afhandling: Kollegial Coaching - Filosoferende fællesskaber i professionspraksis. Bidraget fokuserer på: 1. Kontekstualisering af coaching i feltet for praksislæring 2. Konfigurering af coaching som ramme for filosoferende fællesskaber 3....... Konceptualisering af coaching som modus for evidensreflekteret praksis...

  6. Instructional Coaching in One Middle School

    Science.gov (United States)

    Krohn, Cheryl Ann

    2013-01-01

    This qualitative study examines a model of instructional coaching in a middle school using interviews and observations of both teachers and their coaches. During the 2012-2013 school year, Creekside Middle School implemented a new model of instructional coaching that differed from the traditional model of coaching; it focused on student learning…

  7. "The Good, the Bad and the Ugly": A Model for Reflective Teaching Practices in Coaching Pedagogy

    Science.gov (United States)

    Gordon, Evelyn J.

    2017-01-01

    Coaching should go beyond drills and preparing for the big game. One question many coaches have asked themselves is, "How do I get better?" One way to ensure that future coaches (current students) in sport coaching education are thinking of ways to improve for the future is to teach them to think about the past. This is where reflection…

  8. The Use of Porous Scaffold as a Tumor Model

    Directory of Open Access Journals (Sweden)

    Mei Zhang

    2013-01-01

    Full Text Available Background. Human cancer is a three-dimensional (3D structure consisting of neighboring cells, extracellular matrix, and blood vessels. It is therefore critical to mimic the cancer cells and their surrounding environment during in vitro study. Our aim was to establish a 3D cancer model using a synthetic composite scaffold. Methods. High-density low-volume seeding was used to promote attachment of a non-small-cell lung cancer cell line (NCI-H460 to scaffolds. Growth patterns in 3D culture were compared with those of monolayers. Immunohistochemistry was conducted to compare the expression of Ki67, CD44, and carbonic anhydrase IX. Results. NCI-H460 readily attached to the scaffold without surface pretreatment at a rate of 35% from a load of 1.5 × 106 cells. Most cells grew vertically to form clumps along the surface of the scaffold, and cell morphology resembled tissue origin; 2D cultures exhibited characteristics of adherent epithelial cancer cell lines. Expression patterns of Ki67, CD44, and CA IX varied markedly between 3D and monolayer cultures. Conclusions. The behavior of cancer cells in our 3D model is similar to tumor growth in vivo. This model will provide the basis for future study using 3D cancer culture.

  9. Coaching touch points.

    Science.gov (United States)

    Serio, Ingrid Johnson; Kowalski, Karren

    2014-04-01

    The ability to coach staff and learners is a critical skill for current staff development educators. Coaching includes setting your intention, creating a safe space, staying present, staying curious, withholding judgment, mirroring and modeling, avoiding a set agenda, and requiring accountability.

  10. Managerial Coaching

    Science.gov (United States)

    Bommelje, Rick

    2015-01-01

    This chapter explores how coaching equips managers and supervisors to be successful in the 21st-century workplace. Coaching has benefited these professionals by providing them with viable tools to enhance the leadership and managerial tools they already possess.

  11. Background Review of Existing Literature on Coaching

    OpenAIRE

    Nikki Aikens; Lauren Akers

    2011-01-01

    In this report, we identify studies that link coaching and specific coaching models with outcomes for classrooms, providers, and children, while also highlighting critical aspects of coaching. Specifically, we summarize the research base for coaching as a professional development tool, including the strengths and weaknesses of this research.

  12. Monitoring model drug microencapsulation in PLGA scaffolds using X-ray powder diffraction

    OpenAIRE

    Adeyinka Aina; Manish Gupta; Yamina Boukari; Andrew Morris; Nashiru Billa; Stephen Doughty

    2015-01-01

    The microencapsulation of three model drugs; metronidazole, paracetamol and sulphapyridine into Poly (dl-Lactide-Co-Glycolide) (PLGA) scaffolds were probed using X-ray Powder Diffraction (XRPD). Changes in the diffraction patterns of the PLGA scaffolds after encapsulation was suggestive of a chemical interaction between the pure drugs and the scaffolds and not a physical intermixture.

  13. Monitoring model drug microencapsulation in PLGA scaffolds using X-ray powder d

    Directory of Open Access Journals (Sweden)

    Adeyinka Aina

    2016-03-01

    Full Text Available The microencapsulation of three model drugs; metronidazole, paracetamol and sulphapyridine into Poly (dl-Lactide-Co-Glycolide (PLGA scaffolds were probed using X-ray Powder Diffraction (XRPD. Changes in the diffraction patterns of the PLGA scaffolds after encapsulation was suggestive of a chemical interaction between the pure drugs and the scaffolds and not a physical intermixture.

  14. Monitoring model drug microencapsulation in PLGA scaffolds using X-ray powder diffraction.

    Science.gov (United States)

    Aina, Adeyinka; Gupta, Manish; Boukari, Yamina; Morris, Andrew; Billa, Nashiru; Doughty, Stephen

    2016-03-01

    The microencapsulation of three model drugs; metronidazole, paracetamol and sulphapyridine into Poly (dl-Lactide-Co-Glycolide) (PLGA) scaffolds were probed using X-ray Powder Diffraction (XRPD). Changes in the diffraction patterns of the PLGA scaffolds after encapsulation was suggestive of a chemical interaction between the pure drugs and the scaffolds and not a physical intermixture.

  15. Implementation of a Coaching Program for School Principals: Evaluating Coaches' Strategies and the Results

    Science.gov (United States)

    Huff, Jason; Preston, Courtney; Goldring, Ellen

    2013-01-01

    We present a multi-phase coaching model that was implemented to help principals improve their instructional leadership practices. We then discuss a rubric based on this coaching model that we used to evaluate coaches' implementation of key model phases and to identify principals' responses to the coaching. After presenting the leadership…

  16. Implementation of a Coaching Program for School Principals: Evaluating Coaches' Strategies and the Results

    Science.gov (United States)

    Huff, Jason; Preston, Courtney; Goldring, Ellen

    2013-01-01

    We present a multi-phase coaching model that was implemented to help principals improve their instructional leadership practices. We then discuss a rubric based on this coaching model that we used to evaluate coaches' implementation of key model phases and to identify principals' responses to the coaching. After presenting the…

  17. Engineering Tendon: Scaffolds, Bioreactors, and Models of Regeneration

    Directory of Open Access Journals (Sweden)

    Daniel W. Youngstrom

    2016-01-01

    Full Text Available Tendons bridge muscle and bone, translating forces to the skeleton and increasing the safety and efficiency of locomotion. When tendons fail or degenerate, there are no effective pharmacological interventions. The lack of available options to treat damaged tendons has created a need to better understand and improve the repair process, particularly when suitable autologous donor tissue is unavailable for transplantation. Cells within tendon dynamically react to loading conditions and undergo phenotypic changes in response to mechanobiological stimuli. Tenocytes respond to ultrastructural topography and mechanical deformation via a complex set of behaviors involving force-sensitive membrane receptor activity, changes in cytoskeletal contractility, and transcriptional regulation. Effective ex vivo model systems are needed to emulate the native environment of a tissue and to translate cell-matrix forces with high fidelity. While early bioreactor designs have greatly expanded our knowledge of mechanotransduction, traditional scaffolds do not fully model the topography, composition, and mechanical properties of native tendon. Decellularized tendon is an ideal scaffold for cultivating replacement tissue and modeling tendon regeneration. Decellularized tendon scaffolds (DTS possess high clinical relevance, faithfully translate forces to the cellular scale, and have bulk material properties that match natural tissue. This review summarizes progress in tendon tissue engineering, with a focus on DTS and bioreactor systems.

  18. Coaching and Mentoring Model Based on Teachers' Professional Development for Enhancing Their Teaching Competency in Schools (Thailand) Using Video Tape

    Science.gov (United States)

    Asanok, Manit; Chookhampaeng, Chowwalit

    2016-01-01

    The study aims to develop coaching and mentoring model, study the usage findings in the model and to evaluate the activity management in the model by surveying 100 participant teachers' opinion, under jurisdiction of the office of Mah Sarakham Primary Educational Service Area 1, Thailand. The model consisted of 3 steps and 4 phases including…

  19. Coaching: evoking excellence in others

    National Research Council Canada - National Science Library

    Flaherty, James

    2005-01-01

    ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv 1 The Foundation for Coaching . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Why Coaching Now?. . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

  20. Examining How Model Youth Sport Coaches Learn to Facilitate Positive Youth Development

    Science.gov (United States)

    Camiré, Martin; Trudel, Pierre; Forneris, Tanya

    2014-01-01

    Background: Research indicates that some youth sport coaches have specific strategies in their coaching plan to facilitate positive youth development (PYD) while others struggle in articulating how they promote the development of their athletes in actual practice. These variations can be largely attributed to the fact that coaching is a complex…

  1. My Teaching Partner-Secondary: A Video-Based Coaching Model

    Science.gov (United States)

    Gregory, A.; Ruzek, E.; Hafen, C. A.; Mikami, A. Y.; Allen, J. P.; Pianta, R. C.

    2017-01-01

    In the My Teaching Partner (MTP) program, coaches engage teachers in 6 to 9 coaching cycles across a school year. Guided by the program's theory, coaches help teachers reflect on the emotional, organizational, and instructional features of classrooms. MTP was originally developed for pre-K and early elementary classrooms (MTP Pre-K), but this…

  2. Integrating Professional Development Content and Formative Assessment with the Coaching Process: The Texas School Ready Model

    Science.gov (United States)

    Crawford, April; Zucker, Tricia; Van Horne, Bethanie; Landry, Susan

    2017-01-01

    Instructional coaching is becoming common in early childhood programs to provide individualized, job-embedded professional development. Yet relatively few studies have tried to "unpack" the coaching process and delineate the specific features of coaching that contribute to teacher change. In this article, we describe an evidence-based…

  3. PCL/PHBV blended three dimensional scaffolds fabricated by fused deposition modeling and responses of chondrocytes to the scaffolds.

    Science.gov (United States)

    Kosorn, Wasana; Sakulsumbat, Morakot; Uppanan, Paweena; Kaewkong, Pakkanun; Chantaweroad, Surapol; Jitsaard, Jaturong; Sitthiseripratip, Kriskrai; Janvikul, Wanida

    2017-07-01

    In this study, poly(ε-caprolactone)/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PCL/PHBV) blended porous scaffolds were fabricated by fused deposition modeling (FDM). PCL/PHBV filaments, initially prepared at different weight ratios, that is, 100/0, 75/25, 50/50, and 25/75, were fabricated by the lay-down pattern of 0/90/45/135° to obtain scaffolds with dimension of 6.0 × 6.0 × 2.5 mm(3) and average filament diameters and channel sizes in the ranges of 370-390 µm and 190-210 µm, respectively. To enhance the surface hydrophilicity of the materials, the scaffolds were subsequently subjected to a low pressure oxygen plasma treatment. The untreated and plasma-treated scaffolds were comparatively characterized, in terms of surface properties, mechanical strength, and biological properties. From SEM, AFM, water contact angle, and XPS results, the surface roughness, wettability, and hydrophilicity of the blended scaffolds were found to be enhanced after plasma treatment, while the compressive strength of the scaffolds was scarcely changed. It was, however, found to increase with an increasing content of PHBV incorporated. The porcine chondrocytes exhibited higher proliferative capacity and chondrogenic potential when being cultured on the scaffolds with greater PHBV contents, especially when they were plasma-treated. The PCL/PHBV scaffolds were proven to possess good physical, mechanical, and biological properties that could be appropriately used in articular cartilage regeneration. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 1141-1150, 2017. © 2016 Wiley Periodicals, Inc.

  4. The Financial Coaching Advice Model: An Exploration into how it Satisfies Expectations of Quality Advice

    Directory of Open Access Journals (Sweden)

    Julie Knutsen

    2012-11-01

    Full Text Available For 20 years, the financial planning sector in Australia has been transitioning from a sales-orientated force to aprofession of qualified and skilled practitioners. Today, the potential for professional financial planning adviceto benefit Australians financially, economically and psychologically is recognised by government. Financially,these benefits include increased savings, less interest expense through faster debt reduction, higher investmentreturns and appropriate levels of insurance. Economically, a more financially literate society has the potentialfor less reliance on an already burdened social security system. Psychologically, the benefits include the peaceof mind that comes from an individual being confident in financial matters. However, despite this level ofrecognition and development, national surveys have reported that only a small percentage of the populationactually seek professional financial advice. The factors attributing to these low percentages included the gapsin financial literacy limiting an individual’s engagement in financial matters and consumer’s current mistrust ofthe financial advice business models that remain dominated by commission-driven product sales. Thesedeficiencies have led some financial planning firms to break from financial product sales as the primary advicemodel and focus on financial coaching. Exploratory interviews with the practitioners and clients of a selectedfinancial planning firm have generated insightful discussion into how a financial coaching advice model isachieving the financial, economic and psychological benefits recognised by government as the potentialoutcomes of professional financial advice. The aim of this paper is to present the findings from that discussionand demonstrate the opportunities embedded within a financial coaching advice model. It is argued that thisdiscussion offers a foundation for future research direction in an area currently under researched in

  5. Calibrating Charisma: The many-facet Rasch model for leader measurement and automated coaching

    Science.gov (United States)

    Barney, Matt

    2016-11-01

    No one is a leader unless others follow. Consequently, leadership is fundamentally a social judgment construct, and may be best measured via a Many Facet Rasch Model designed for this purpose. Uniquely, the MFRM allows for objective, accurate and precise estimation of leader attributes, along with identification of rater biases and other distortions of the available information. This presentation will outline a mobile computer-adaptive measurement system that measures and develops charisma, among others. Uniquely, the approach calibrates and mass-personalizes artificially intelligent, Rasch-calibrated electronic coaching that is neither too hard nor too easy but “just right” to help each unique leader develop improved charisma.

  6. A scaffold-filter model for studying the chondrogenic differentiation of stem cells in vitro.

    Science.gov (United States)

    Zhang, Ling; Zheng, Li; Fan, Hong S; Zhang, Xing D

    2017-01-01

    This study was undertaken to explore the synergistic effect of scaffold materials and a cartilage-like environment on the chondrogenic differentiation of stem cells. Because stem cells encapsulated in a cartilage scaffold will be induced by scaffold molecules as well as permeable molecules from the surroundings, it is impossible to optimize a chondro-inducible scaffold without considering environmental sensitivity. How do we know if a designed scaffold will be sufficient prior to implantation? In this study, bone marrow mesenchymal stem cells (bMSCs) were seeded in various scaffolds, including collagen hydrogel, collage/sodium alginate hydrogel, collagen sponge and silk fibroin sponge. The cell-scaffold complex was encapsulated in a filter pocket to avoid direct contact with co-cultured chondrocytes. Scaffolds differed in the ability to adsorb inducible molecules expressed by chondrocytes, as evidenced by various expressions of cartilage specific proteins and genes. Collagen hydrogel unexpectedly supported chondrogenic differentiation in an environment filled with chondrocytes secretion better than other reinforced scaffolds, which is consistent with the previous experiment in vivo. This result indicated that the environmental sensitivity of a scaffold is important for in vivo chondro-induction. This in vitro scaffold-filter model may be useful as a precursor to investigate the chondro-inducing potential of various scaffolds for cartilage repair.

  7. Coaching er varm luft!

    DEFF Research Database (Denmark)

    Molly, Asbjørn

    2014-01-01

    In this essay a new model is presented as an attempt to operationalize the otherwise slightly abstract concept of ”suitable disturbances” (coined by Humberto Maturana), which is a central concept in systemic coaching. The argument stated is that the process of ’reading’ and ’recognizing’ a coachee......’s use of a word is a necessary skill for the coach to master, in order to introduce a language game in which it becomes possible to ‘disturb’ this use in a constructive manner. This argument is exemplified in a specific coaching conversation with a school leader, whose use of the word recognition...

  8. Model of Models: Preservice Teachers in a Vygotskian Scaffold

    Science.gov (United States)

    De Leon, Leticia

    2012-01-01

    Lev Vygotsky's revolutionary ideas have extended knowledge on the process of education--in particular, on mediating learning through language--for over 40 years. The zone of proximal development strengthened a new paradigm for learning and instruction, one which others, such as Bruner, formulated into the concept of scaffolding. Action research…

  9. Model of Models: Preservice Teachers in a Vygotskian Scaffold

    Science.gov (United States)

    De Leon, Leticia

    2012-01-01

    Lev Vygotsky's revolutionary ideas have extended knowledge on the process of education--in particular, on mediating learning through language--for over 40 years. The zone of proximal development strengthened a new paradigm for learning and instruction, one which others, such as Bruner, formulated into the concept of scaffolding. Action research…

  10. Teach, Coach, Live: The Viability of the Three-Role Teaching Model in the 21st Century

    Science.gov (United States)

    Martin, Joseph Gregory

    2016-01-01

    This explanatory mixed-methods study is focused on the sustainability of the triple-threat model of teaching found at elite American boarding schools. In this model, faculty members are expected to teach, coach, and perform residential duties as part of their contract. While elite boarding schools have been researched in recent years, no research…

  11. Coaching Early Educators to Implement Effective Practices: Using the Pyramid Model to Promote Social-Emotional Development

    Science.gov (United States)

    Fox, Lise; Hemmeter, Mary Louise

    2011-01-01

    The Pyramid Model is a conceptual framework for organizing practices for promoting young children's social-emotional development and preventing and addressing challenging behavior. The authors describe a coaching approach that is focused on supporting early educators' implementation of the Pyramid Model. The authors provide a description of the…

  12. Instructional Coaching

    Science.gov (United States)

    Knight, Jim

    2006-01-01

    The number of school districts using instructional coaches is growing at a staggering rate. Coaching is becoming popular, in part, because many educational leaders recognize the old form of professional development, built around traditional in-service sessions for teachers, simply does not affect student achievement. By offering support, feedback,…

  13. Coach simplified structure modeling and optimization study based on the PBM method

    Science.gov (United States)

    Zhang, Miaoli; Ren, Jindong; Yin, Ying; Du, Jian

    2016-09-01

    For the coach industry, rapid modeling and efficient optimization methods are desirable for structure modeling and optimization based on simplified structures, especially for use early in the concept phase and with capabilities of accurately expressing the mechanical properties of structure and with flexible section forms. However, the present dimension-based methods cannot easily meet these requirements. To achieve these goals, the property-based modeling (PBM) beam modeling method is studied based on the PBM theory and in conjunction with the characteristics of coach structure of taking beam as the main component. For a beam component of concrete length, its mechanical characteristics are primarily affected by the section properties. Four section parameters are adopted to describe the mechanical properties of a beam, including the section area, the principal moments of inertia about the two principal axles, and the torsion constant of the section. Based on the equivalent stiffness strategy, expressions for the above section parameters are derived, and the PBM beam element is implemented in HyperMesh software. A case is realized using this method, in which the structure of a passenger coach is simplified. The model precision is validated by comparing the basic performance of the total structure with that of the original structure, including the bending and torsion stiffness and the first-order bending and torsional modal frequencies. Sensitivity analysis is conducted to choose design variables. The optimal Latin hypercube experiment design is adopted to sample the test points, and polynomial response surfaces are used to fit these points. To improve the bending and torsion stiffness and the first-order torsional frequency and taking the allowable maximum stresses of the braking and left turning conditions as constraints, the multi-objective optimization of the structure is conducted using the NSGA-II genetic algorithm on the ISIGHT platform. The result of the

  14. A mathematical model for bone tissue regeneration inside a specific type of scaffold.

    Science.gov (United States)

    Sanz-Herrera, J A; Garcia-Aznar, J M; Doblare, M

    2008-10-01

    Bone tissue regeneration using scaffolds is receiving an increasing interest in orthopedic surgery and tissue engineering applications. In this study, we present the geometrical characterization of a specific family of scaffolds based on a face cubic centered (FCC) arrangement of empty pores leading to analytical formulae of porosity and specific surface. The effective behavior of those scaffolds, in terms of mechanical properties and permeability, is evaluated through the asymptotic homogenization theory applied to a representative volume element identified with the unit cell FCC. Bone growth into the scaffold is estimated by means of a phenomenological model that considers a macroscopic effective stress as the mechanical stimulus that regulates bone formation. Cell migration within the scaffold is modeled as a diffusion process based on Fick's law which allows us to estimate the cell invasion into the scaffold microstructure. The proposed model considers that bone growth velocity is proportional to the concentration of cells and regulated by the mechanical stimulus. This model allows us to explore what happens within the scaffold, the surrounding bone and their interaction. The mathematical model has been numerically implemented and qualitatively compared with previous experimental results found in the literature for a scaffold implanted in the femoral condyle of a rabbit. Specifically, the model predicts around 19 and 23% of bone regeneration for non-grafted and grafted scaffolds, respectively, both with an initial porosity of 76%.

  15. A Computational Model of Cellular Engraftment on Lung Scaffolds

    Directory of Open Access Journals (Sweden)

    Joshua J. Pothen

    2016-10-01

    Full Text Available The possibility that stem cells might be used to regenerate tissue is now being investigated for a variety of organs, but these investigations are still essentially exploratory and have few predictive tools available to guide experimentation. We propose, in this study, that the field of lung tissue regeneration might be better served by predictive tools that treat stem cells as agents that obey certain rules of behavior governed by both their phenotype and their environment. Sufficient knowledge of these rules of behavior would then, in principle, allow lung tissue development to be simulated computationally. Toward this end, we developed a simple agent-based computational model to simulate geographic patterns of cells seeded onto a lung scaffold. Comparison of the simulated patterns to those observed experimentally supports the hypothesis that mesenchymal stem cells proliferate preferentially toward the scaffold boundary, whereas alveolar epithelial cells do not. This demonstrates that a computational model of this type has the potential to assist in the discovery of rules of cellular behavior

  16. Peer Coaching as a Model for Professional Development in the Elementary Mathematics Context: Challenges, Needs and Rewards

    Science.gov (United States)

    Jao, Limin

    2013-01-01

    As our knowledge about education continues to change, educators must refine and redefine their beliefs and teaching practices through professional development. In the peer coaching model of professional development, both participants have a chance to reflect on what they observe and on their own teaching practices. This reciprocal gain is one of…

  17. Narrative coaching

    DEFF Research Database (Denmark)

    Drake, David; Stelter, Reinhard

    2014-01-01

    From the introduction: While a narrative frame is relatively new in the fi elds of psychotherapy and coaching, stories have been an essential constituent of cultures and communities since the dawn of time and are fundamental to the way we make sense and meaning. We use stories to structure our...... keep individually and collectively telling ourselves that reinforce them. As such, they are at the core of what it means to be human – as refl ected in our biology, ontology, epistemology and cosmology – and a natural medium for use in coaching. Narrative coaches are, therefore, keenly interested...

  18. Tredje generations coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    , vi dagligt skal forholde os til. Forfatterens forestilling om coaching tager udgangspunkt i en analyse af vort samfund – et samfund, der er kendetegnet af diversificering, identitetsudfordringer, ophævelse af vidensmonopolet, livslang uddannelse, nødvendighed til selvrefleksion mm. Bogen skal har...... dermed et særligt profil. Den skal markere (og skubbe til) en ny trend i coaching, som afgrænser sig fra pop coaching og GROW model o.l.. Coaching kan aldrig være ”the quick fix”. Vores tid tillader det bage ikke. Disse samfundsmæssige forandringer er grundlaget for coachingens eksistens og udbredelse......, men de skal også være fundament for den måde vi bedriver coaching. Derfor plæderer bogens forfatter for en 3. generations coaching i en form, hvor coachen og fokuspersonen mindre er fokuseret på løsninger, men i højere grad optaget af at skabe et rum til (selv)refleksion gennem en samskabende praksis....

  19. Tredje generations coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    , vi dagligt skal forholde os til. Forfatterens forestilling om coaching tager udgangspunkt i en analyse af vort samfund – et samfund, der er kendetegnet af diversificering, identitetsudfordringer, ophævelse af vidensmonopolet, livslang uddannelse, nødvendighed til selvrefleksion mm. Bogen skal har...... dermed et særligt profil. Den skal markere (og skubbe til) en ny trend i coaching, som afgrænser sig fra pop coaching og GROW model o.l.. Coaching kan aldrig være ”the quick fix”. Vores tid tillader det bage ikke. Disse samfundsmæssige forandringer er grundlaget for coachingens eksistens og udbredelse......, men de skal også være fundament for den måde vi bedriver coaching. Derfor plæderer bogens forfatter for en 3. generations coaching i en form, hvor coachen og fokuspersonen mindre er fokuseret på løsninger, men i højere grad optaget af at skabe et rum til (selv)refleksion gennem en samskabende praksis....

  20. Effects of Training and Coaching with Performance Feedback on Teachers' Use of "Pyramid Model" Practices

    Science.gov (United States)

    Hemmeter, Mary Louise; Hardy, Jessica K.; Schnitz, Alana G.; Adams, Jessie Morris; Kinder, Kiersten A.

    2015-01-01

    Training and coaching with performance feedback has been effective for supporting teachers to use evidence-based instructional practices. However, coaching with performance feedback has primarily been used to support teachers to use discrete skills, and there has been little evidence of maintenance and generalization. The purpose of this study was…

  1. Applying Social Cognitive Theory in Coaching Athletes: The Power of Positive Role Models

    Science.gov (United States)

    Connolly, Graeme J.

    2017-01-01

    The purpose of this article is to help coaches apply specific principles of psychology to the coaching process. More specifically, the work of Albert Bandura and his social cognitive theory form the basis for the article. This article begins with a brief overview of Bandura's social cognitive theory. It then examines four types of behaviors worthy…

  2. Peer Coaching: Students Teaching To Learn.

    Science.gov (United States)

    Brewer, Robin D.; Reid, Melanie S.; Rhine, Barbara G.

    2003-01-01

    This article describes a peer coaching model implemented in two elementary schools that included the following steps: identify coaches and their needs; identify learning buddies with similar needs; set up a schedule; determine supervision process; plan lessons; implement coaching sessions; reflect on lesson; and evaluate the model. (Contains…

  3. Behavioral coaching.

    Science.gov (United States)

    Seniuk, Holly A; Witts, Benjamin N; Williams, W Larry; Ghezzi, Patrick M

    2013-01-01

    The term behavioral coaching has been used inconsistently in and outside the field of behavior analysis. In the sports literature, the term has been used to describe various intervention strategies, and in the organizational behavior management literature it has been used to describe an approach to training management personnel and staff. This inconsistency is problematic in terms of the replication of behavioral coaching across studies and aligning with Baer, Wolf, and Risley's (1968) technological dimension of applied behavior analysis. The current paper will outline and critique the discrepancies in the use of the term and suggest how Martin and Hrycaiko's (1983) characteristics of behavioral coaching in sports may be used to bring us closer to establishing a consistent definition of the term. In addition, we will suggest how these characteristics can also be applicable to the use of the term behavioral coaching in other domains of behavior analysis.

  4. Narrative coaching

    DEFF Research Database (Denmark)

    Drake, David; Stelter, Reinhard

    2014-01-01

    keep individually and collectively telling ourselves that reinforce them. As such, they are at the core of what it means to be human – as refl ected in our biology, ontology, epistemology and cosmology – and a natural medium for use in coaching. Narrative coaches are, therefore, keenly interested...... in what Foucault (1965 ) called people’s ‘theory of events’, particularly as they wrestle with existential issues and choices in their life and work....

  5. Managerial coaching: a concept analysis.

    Science.gov (United States)

    Batson, Vicki D; Yoder, Linda H

    2012-07-01

    This article presents a report of a concept analysis of managerial coaching. Managerial coaching has been identified as a means for managers to give support to staff nurses, however, no clear delineation of what behaviours and attributes constitute managerial coaching or differentiate it from other career development relationships is provided in the current nursing literature. The CINAHL, ProQuest, Business Source Complete and PscyhIFNO databases were searched for articles published between 1980-2009 using the keywords coaching, managerial coaching, nurse manager support, nursing leadership, self-efficacy, work environment and empowerment. A hybrid approach was used, incorporating both Walker and Avant's method of concept analysis and King's conceptual system and Theory of Goal Attainment to explore the meaning of managerial coaching. Inclusive years of search ranged from 1980-2009. Managerial coaching is a specific dyadic relationship between the nurse manager and staff nurse intended to improve skills and knowledge as they relate to expected job performance. Antecedents and consequences are categorized at the individual and organizational level. Defining attributes, empirical referents and a model case are presented. The theoretical definition for this concept helps to differentiate it from other types of career development relationships and will give a basis for nurse managers to understand what skills and attributes are necessary to establish an effective managerial coaching relationship with staff nurses. Conceptualization will also assist in developing empirical studies examining managerial coaching behaviours in the work environment. © 2012 Blackwell Publishing Ltd.

  6. Interfacing polymeric scaffolds with primary pancreatic ductal adenocarcinoma cells to develop 3D cancer models

    NARCIS (Netherlands)

    Ricci, C.; Mota, C.M.; Moscato, S.; Alessandro, D' D.; Ugel, S.; Sartoris, S.; Bronte, V.; Boggi, U.; Campani, D.; Funel, N.; Moroni, L.; Danti, S.

    2014-01-01

    We analyzed the interactions between human primary cells from pancreatic ductal adenocarcinoma (PDAC) and polymeric scaffolds to develop 3D cancer models useful for mimicking the biology of this tumor. Three scaffold types based on two biocompatible polymeric formulations, such as poly(vinyl alcohol

  7. Self-assembly model, hepatocytes attachment and inflammatory response for silk fibroin/chitosan scaffolds

    Energy Technology Data Exchange (ETDEWEB)

    She Zhending; Feng Qingling [State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China); Liu Weiqiang, E-mail: biomater@mail.tsinghua.edu.c [Center for Advanced Materials and Biotechnology, Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057 (China)

    2009-08-15

    Silk fibroin is an attractive natural fibrous protein for biomedical application due to its good biocompatibility and high tensile strength. Silk fibroin is apt to form a sheet-like structure during the freeze-drying process, which is not suitable for the scaffold of tissue engineering. In our former study, the adding of chitosan promoted the self-assembly of silk fibroin/chitosan (SFCS) into a three-dimensional (3D) homogeneous porous structure. In this study, a model of the self-assembly is proposed; furthermore, hepatocytes attachment and inflammatory response for the SFCS scaffold were examined. The rigid chain of chitosan may be used as a template for beta-sheet formation of silk fibroin, and this may break the sheet structure of the silk fibroin scaffold and promote the formation of a 3D porous structure of the SFCS scaffold. Compared with the polylactic glycolic acid scaffold, the SFCS scaffold further facilitates the attachment of hepatocytes. To investigate the inflammatory response, SFCS scaffolds were implanted into the greater omentum of rats. From the results of implantation, we could demonstrate in vivo that the implantation of SFCS scaffolds resulted in only slight inflammation. Keeping the good histocompatibility and combining the advantages of both fibroin and chitosan, the SFCS scaffold could be a prominent candidate for soft tissue engineering, for example, in the liver.

  8. Accurate Fabrication of Hydroxyapatite Bone Models with Porous Scaffold Structures by Using Stereolithography

    Energy Technology Data Exchange (ETDEWEB)

    Maeda, Chiaki; Tasaki, Satoko; Kirihara, Soshu, E-mail: c-maeda@jwri.osaka-u.ac.jp [Joining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki City, Osaka 567-0047 (Japan)

    2011-05-15

    Computer graphic models of bioscaffolds with four-coordinate lattice structures of solid rods in artificial bones were designed by using a computer aided design. The scaffold models composed of acryl resin with hydroxyapatite particles at 45vol. % were fabricated by using stereolithography of a computer aided manufacturing. After dewaxing and sintering heat treatment processes, the ceramics scaffold models with four-coordinate lattices and fine hydroxyapatite microstructures were obtained successfully. By using a computer aided analysis, it was found that bio-fluids could flow extensively inside the sintered scaffolds. This result shows that the lattice structures will realize appropriate bio-fluid circulations and promote regenerations of new bones.

  9. Validation of scaffold design optimization in bone tissue engineering: finite element modeling versus designed experiments.

    Science.gov (United States)

    Uth, Nicholas; Mueller, Jens; Smucker, Byran; Yousefi, Azizeh-Mitra

    2017-02-21

    This study reports the development of biological/synthetic scaffolds for bone tissue engineering (TE) via 3D bioplotting. These scaffolds were composed of poly(L-lactic-co-glycolic acid) (PLGA), type I collagen, and nano-hydroxyapatite (nHA) in an attempt to mimic the extracellular matrix of bone. The solvent used for processing the scaffolds was 1,1,1,3,3,3-hexafluoro-2-propanol. The produced scaffolds were characterized by scanning electron microscopy, microcomputed tomography, thermogravimetric analysis, and unconfined compression test. This study also sought to validate the use of finite-element optimization in COMSOL Multiphysics for scaffold design. Scaffold topology was simplified to three factors: nHA content, strand diameter, and strand spacing. These factors affect the ability of the scaffold to bear mechanical loads and how porous the structure can be. Twenty four scaffolds were constructed according to an I-optimal, split-plot designed experiment (DE) in order to generate experimental models of the factor-response relationships. Within the design region, the DE and COMSOL models agreed in their recommended optimal nHA (30%) and strand diameter (460 μm). However, the two methods disagreed by more than 30% in strand spacing (908 μm for DE; 601 μm for COMSOL). Seven scaffolds were 3D-bioplotted to validate the predictions of DE and COMSOL models (4.5-9.9 MPa measured moduli). The predictions for these scaffolds showed relative agreement for scaffold porosity (mean absolute percentage error of 4% for DE and 13% for COMSOL), but were substantially poorer for scaffold modulus (51% for DE; 21% for COMSOL), partly due to some simplifying assumptions made by the models. Expanding the design region in future experiments (e.g., higher nHA content and strand diameter), developing an efficient solvent evaporation method, and exerting a greater control over layer overlap could allow developing PLGA-nHA-collagen scaffolds to meet the mechanical requirements for

  10. Osteochondral repair in the rabbit model utilizing bilayered, degradable oligo(poly(ethylene glycol) fumarate) hydrogel scaffolds

    NARCIS (Netherlands)

    Holland, T.A.; Bodde, E.W.H.; Baggett, L.S.; Tabata, Y.; Mikos, A.G.; Jansen, J.A.

    2005-01-01

    In this study, hydrogel scaffolds, based on the polymer oligo(poly(ethylene glycol) fumarate) (OPF), were implanted into osteochondral defects in the rabbit model. Scaffolds consisted of two layers-a bottom, bone forming layer and a top, cartilage forming layer. Three scaffold formulations were impl

  11. Ledelsesbaseret coaching

    DEFF Research Database (Denmark)

    Molly-Søholm, Thorkil; Storch, Jacob; Juhl, Andreas;

    Hvordan coacher man som leder? Når jeg sidder i kursuslokalet og træner spørgeteknikker, går det fint, men når jeg skal bruge det hjemme i min organisation, fungerer det slet ikke. Skal coaching kunne fungere som et ledelsesværktøj, må det tilpasses de spilleregler, der gælder for arbejdskonteksten...... - det er udgangspunktet for denne bog. Forfatternes argument er, at der er sket en kortslutning i den måde, coaching er overført fra idrættens og terapiens verden til den organisatoriske hverdag. I denne bog giver forfatterne indgående beskrivelser af coachingværktøjer omsat til en ledelsesmæssig...... kontekst, og de byder på en række praktiske anvisninger til, hvordan man tilegner sig en coachende ledelsesstil. Ledelsesbaseret coaching henvender sig til ledere på alle niveauer, der ønsker at bringe coaching et skridt videre ind i organisationerne som en ledelsesform, der rummer stort potentiale...

  12. A structural model for the flexural mechanics of nonwoven tissue engineering scaffolds.

    Science.gov (United States)

    Engelmayr, George C; Sacks, Michael S

    2006-08-01

    The development of methods to predict the strength and stiffness of biomaterials used in tissue engineering is critical for load-bearing applications in which the essential functional requirements are primarily mechanical. We previously quantified changes in the effective stiffness (E) of needled nonwoven polyglycolic acid (PGA) and poly-L-lactic acid (PLLA) scaffolds due to tissue formation and scaffold degradation under three-point bending. Toward predicting these changes, we present a structural model for E of a needled nonwoven scaffold in flexure. The model accounted for the number and orientation of fibers within a representative volume element of the scaffold demarcated by the needling process. The spring-like effective stiffness of the curved fibers was calculated using the sinusoidal fiber shapes. Structural and mechanical properties of PGA and PLLA fibers and PGA, PLLA, and 50:50 PGA/PLLA scaffolds were measured and compared with model predictions. To verify the general predictive capability, the predicted dependence of E on fiber diameter was compared with experimental measurements. Needled nonwoven scaffolds were found to exhibit distinct preferred (PD) and cross-preferred (XD) fiber directions, with an E ratio (PD/XD) of approximately 3:1. The good agreement between the predicted and experimental dependence of E on fiber diameter (R2 = 0.987) suggests that the structural model can be used to design scaffolds with E values more similar to native soft tissues. A comparison with previous results for cell-seeded scaffolds (Engelmayr, G. C., Jr., et al., 2005, Biomaterials, 26(2), pp. 175-187) suggests, for the first time, that the primary mechanical effect of collagen deposition is an increase in the number of fiber-fiber bond points yielding effectively stiffer scaffold fibers. This finding indicated that the effects of tissue deposition on needled nonwoven scaffold mechanics do not follow a rule-of-mixtures behavior. These important results underscore

  13. Outlining a typology of sports coaching careers

    DEFF Research Database (Denmark)

    Christensen, Mette Krogh

    2014-01-01

    This paper aims to extend our understanding of sports coaching careers and challenge related stage-based models by outlining and describing a typology of careers in high-performance sports coaching. A constructivist research approach is applied that intends to gain insight into the realities...... of coaches’ careers.Datawere drawn fromin-depth interviews with 10 Danish high-performance sports coaches. Results identified four classifying features that pave the way for the establishment of a typology consisting of three ideal types: (1) the elite-athlete coach; (2) the academic coach; and (3) the early......-starter coach. The findings are theorized throughWenger’s concept of paradigmatic pathways and Bourdieu’s concept of cultural capital. The study illuminates paradigmatic trajectories and conversions of cultural capital in high-performance sports coaching careers that may act as models for young athletes...

  14. Coaching relationship - and beyond

    DEFF Research Database (Denmark)

    Spaten, Ole Michael; O'Broin, Alanna; Løkken, Lillith Olesen

    2016-01-01

    on the outcomes of coaching. It is a presentation, on factors specifically related to engagement of the coachee and building effective coaching relationships: (a) a study examining the power relations between employee coachee and coach from the middle manager coach perspective, highlighting coaching relationship...... quality as a necessity for moments of symmetry and equality in fruitful coaching; (b) a study on the diversity factor of coach age, finding that age was not significant in executive coachées coach selection, however age signified credibility and experience, with possible implications for young executive...

  15. The Heart of Coaching

    Science.gov (United States)

    Docheff, Dennis M.; Gerdes, Dan

    2015-01-01

    This article challenges coaches to address the more personal, human elements of coaching--the HEART of coaching. While there is much research on numerous aspects of coaching, this article provides ideas that make a lasting impact on the hearts of athletes. Using HEART as an acronym, five elements of effective coaching are presented: Humility,…

  16. The Heart of Coaching

    Science.gov (United States)

    Docheff, Dennis M.; Gerdes, Dan

    2015-01-01

    This article challenges coaches to address the more personal, human elements of coaching--the HEART of coaching. While there is much research on numerous aspects of coaching, this article provides ideas that make a lasting impact on the hearts of athletes. Using HEART as an acronym, five elements of effective coaching are presented: Humility,…

  17. Sex Discrimination in Coaching.

    Science.gov (United States)

    Dessem, Lawrence

    1980-01-01

    Even in situations in which the underpayment of girls' coaches is due to the sex of the students coached rather than to the sex of the coaches, the coaches and the girls coached are victims of unlawful discrimination. Available from Harvard Women's Law Journal, Harvard Law School, Cambridge, MA 02138. (Author/IRT)

  18. What Good Coaches Do

    Science.gov (United States)

    Knight, Jim

    2011-01-01

    Instructional coaching guru Jim Knight suggests that how we think about coaching can enhance or interfere with our success as a coach. He suggests that coaches take a partnership approach to collaboration and adopt seven principles that define how coaches interact with collaborating teachers: equality, choice, voice, reflection, dialogue, praxis,…

  19. Peer Coaching and Technology Integration: An Evaluation of the Microsoft Peer Coaching Program

    Science.gov (United States)

    Barron, Ann E.; Dawson, Kara; Yendol-Hoppey, Diane

    2009-01-01

    This article focuses on an evaluation of the Microsoft Peer Coaching (MPC) program in Florida, USA. First, the design of the MPC materials was analyzed using characteristics of exemplary peer coaching and technology integration models. Second, facilitators (n = 14) and coaches (n = 46) who attended the MPC workshops in Florida were surveyed…

  20. Provocative coaching

    OpenAIRE

    Kukkonen, Tanja; Lilleberg, Heidi

    2016-01-01

    This thesis takes part in a project called HURMOS which is conducted by Oulu University and Oulu University of Applied Sciences in cooperation with nine local companies. The project aims to examine the use of humour in business environments and discover ways of utilizing it more efficiently. The topic of provocative coaching originated from commissioner’s suggestion and was chosen due to authors’ interest in human resource management and topic’s relation to humour. The objective of this p...

  1. The Case of "Not Enough Time": Using GROW and Motivational Interviewing Coaching Frameworks

    Science.gov (United States)

    Herd, Ann

    2015-01-01

    Leadership coaching has gained in use and popularity as a leadership development tool used both within and outside the context of an organization. At the heart of the coaching process is the coaching relationship and the critical coaching skills of powerful questioning and active listening. One of the most popular coaching models within which…

  2. Third generation coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2014-01-01

    Third generation coaching unfolds a new universe for coaching and coaching psychology in the framework of current social research, new learning theories and discourses about personal leadership. Third generation coaching views coaching in a societal perspective. Coaching has become important...... as a form of dialogue because the (hyper)complexity of our society. Today, knowledge has to be shaped and applied in specific contexts and situations, and both in our personal lives and in the public space we have to learn to negotiate. Coaching can help us generate new knowledge and manage social...... transformation. Coaching thus facilitates new reflections and perspectives, as well as empowerment and support for self-Bildung processes. Third generation coaching focuses on the coach and the coachee in their narrative collaborative partnership. Unlike first generation coaching, where the goal is to help...

  3. Autologous cartilage fragments in a composite scaffold for one stage osteochondral repair in a goat model

    Directory of Open Access Journals (Sweden)

    A Marmotti

    2013-08-01

    Full Text Available We propose a culture-free approach to osteochondral repair with minced autologous cartilage fragments loaded onto a scaffold composed of a hyaluronic acid (HA-derived membrane, platelet-rich fibrin matrix (PRFM and fibrin glue. The aim of the study was to demonstrate in vitro the outgrowth of chondrocytes from cartilage fragments onto this scaffold and, in vivo, the formation of functional repair tissue in goat osteochondral defects. Two sections were considered: 1 in vitro: minced articular cartilage from goat stifle joints was loaded onto scaffolds, cultured for 1 or 2 months, and then evaluated histologically and immunohistochemically; 2 in vivo: 2 unilateral critically-sized trochlear osteochondral defects were created in 15 adult goats; defects were treated with cartilage fragments embedded in the scaffold (Group 1, with the scaffold alone (Group 2, or untreated (Group 3. Repair processes were evaluated morphologically, histologically, immunohistochemically and biomechanically at 1, 3, 6 and 12 months. We found that in vitro, chondrocytes from cartilage fragments migrated to the scaffold and, at 2 months, matrix positive for collagen type II was observed in the constructs. In vivo, morphological and histological assessment demonstrated that cartilage fragment-loaded scaffolds led to the formation of functional hyaline-like repair tissue. Repair in Group 1 was superior to that of control groups, both histologically and mechanically. Autologous cartilage fragments loaded onto an HA/PRFM/fibrin glue scaffold provided a viable cell source and allowed for an improvement of the repair process of osteochondral defects in a goat model, representing an effective alternative for one-stage repair of osteochondral lesions.

  4. Writings as modelling examples: Scaffolds for academic writing in a post-graduate curriculum

    NARCIS (Netherlands)

    Firssova, Olga

    2014-01-01

    The presented study investigated the effectiveness of learning from models in the context of post-graduate academic writing. Two questions were pursued: whether studying model writings supports mature students in writing in a new genre and whether integrating additional scaffolds in such models has

  5. Writings as modelling examples: Scaffolds for academic writing in a post-graduate curriculum

    NARCIS (Netherlands)

    Firssova, Olga

    2014-01-01

    The presented study investigated the effectiveness of learning from models in the context of post-graduate academic writing. Two questions were pursued: whether studying model writings supports mature students in writing in a new genre and whether integrating additional scaffolds in such models has

  6. Leadership Coaching: Coaching Competencies and Best Practices

    Science.gov (United States)

    Wise, Donald; Hammack, Marc

    2011-01-01

    Leadership coaching is now seen as a valuable tool to assist school leaders. Through a survey of school principals, this study identified specific coaching competencies used by leadership coaches that were perceived by principals to influence key best practices for schools. These best practices have in turn been correlated to increased student…

  7. Transpersonal Coaching.

    Science.gov (United States)

    Schaub, Bonney Gulino; White, Mary Beth

    2015-08-01

    These are just a few of many stories shared by patients who have benefited from transpersonal coaching. This practice blends well with holistic nursing and can be easily applied to a variety of situations and healthcare settings. When a holistic nurse works from the assumption that the transpersonal aspect of human nature is an objective fact, it is possible to help patients gain access to their transpersonal nature and thereby experience new feelings and insights. The insights usually come in the form of images and energies and provide the personality with a greater sense of wholeness and courage.

  8. The usefulness of the Enneagram model in The Netherlands: An overview of Enneagram explanations and the usefulness as ascribed by Dutch Enneagram coaches and managers

    NARCIS (Netherlands)

    Hoekx, C.C.G.M.

    2017-01-01

    The Enneagram Model (hereinafter: EM) was never evaluated scientifically in The Netherlands, while the model is being used by Dutch managers and coaches since the millennium. The EM is a model that is able to communicate psychological values and spirituality. The management might use the EM in

  9. The usefulness of the Enneagram model in The Netherlands: An overview of Enneagram explanations and the usefulness as ascribed by Dutch Enneagram coaches and managers

    NARCIS (Netherlands)

    Hoekx, C.C.G.M.

    2017-01-01

    The Enneagram Model (hereinafter: EM) was never evaluated scientifically in The Netherlands, while the model is being used by Dutch managers and coaches since the millennium. The EM is a model that is able to communicate psychological values and spirituality. The management might use the EM in orde

  10. Interfacing polymeric scaffolds with primary pancreatic ductal adenocarcinoma cells to develop 3D cancer models.

    Science.gov (United States)

    Ricci, Claudio; Mota, Carlos; Moscato, Stefania; D'Alessandro, Delfo; Ugel, Stefano; Sartoris, Silvia; Bronte, Vincenzo; Boggi, Ugo; Campani, Daniela; Funel, Niccola; Moroni, Lorenzo; Danti, Serena

    2014-01-01

    We analyzed the interactions between human primary cells from pancreatic ductal adenocarcinoma (PDAC) and polymeric scaffolds to develop 3D cancer models useful for mimicking the biology of this tumor. Three scaffold types based on two biocompatible polymeric formulations, such as poly(vinyl alcohol)/gelatin (PVA/G) mixture and poly(ethylene oxide terephthalate)/poly(butylene terephthalate) (PEOT/PBT) copolymer, were obtained via different techniques, namely, emulsion and freeze-drying, compression molding followed by salt leaching, and electrospinning. In this way, primary PDAC cells interfaced with different pore topographies, such as sponge-like pores of different shape and size or nanofiber interspaces. The aim of this study was to investigate the influence played by the scaffold architecture over cancerous cell growth and function. In all scaffolds, primary PDAC cells showed good viability and synthesized tumor-specific metalloproteinases (MMPs) such as MMP-2, and MMP-9. However, only sponge-like pores, obtained via emulsion-based and salt leaching-based techniques allowed for an organized cellular aggregation very similar to the native PDAC morphological structure. Differently, these cell clusters were not observed on PEOT/PBT electrospun scaffolds. MMP-2 and MMP-9, as active enzymes, resulted to be increased in PVA/G and PEOT/PBT sponges, respectively. These findings suggested that spongy scaffolds supported the generation of pancreatic tumor models with enhanced aggressiveness. In conclusion, primary PDAC cells showed diverse behaviors while interacting with different scaffold types that can be potentially exploited to create stage-specific pancreatic cancer models likely to provide new knowledge on the modulation and drug susceptibility of MMPs.

  11. Third Generation Coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2016-01-01

    Third Generation Coaching entfaltet ein neues Universum für Coaching und Coaching-Psychologie auf der Grundlage veränderter Gesellschaftsbedingungen. Wir leben in hyperkomplexen sozialen und ökonomischen Kontexten. Coaching muss sich deshalb zu einer Dialogform weiterentwickeln, die dem Einzelnen...

  12. Considering Student Coaching

    Science.gov (United States)

    Keen, James P.

    2014-01-01

    What does student coaching involve and what considerations make sense in deciding to engage an outside contractor to provide personal coaching? The author explores coaching in light of his own professional experience and uses this reflection as a platform from which to consider the pros and cons of student coaching when deciding whether to choose…

  13. Kollegial coaching mellem sygeplejersker

    DEFF Research Database (Denmark)

    Molly, Asbjørn; Høeg, Bettina

    2007-01-01

    Artiklen henvender sig til afdelingssygeplejersker med interesse for coaching. Hovedbudskabet er, at kollegial coaching tilbyder en ramme, hvor det er muligt at få udviklet et sprog for ledelse. I artiklen defineres coaching ind i en sygeplejekontekst, og to afdelingssygeplejersker fra Vejle...... Sygehus fortæller om deres erfaringer med kollegial coaching....

  14. Kollegial coaching mellem sygeplejersker

    DEFF Research Database (Denmark)

    Molly, Asbjørn; Høeg, Bettina

    2007-01-01

    Artiklen henvender sig til afdelingssygeplejersker med interesse for coaching. Hovedbudskabet er, at kollegial coaching tilbyder en ramme, hvor det er muligt at få udviklet et sprog for ledelse. I artiklen defineres coaching ind i en sygeplejekontekst, og to afdelingssygeplejersker fra Vejle...... Sygehus fortæller om deres erfaringer med kollegial coaching....

  15. Third generation coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2014-01-01

    Third generation coaching unfolds a new universe for coaching and coaching psychology in the framework of current social research, new learning theories and discourses about personal leadership. Third generation coaching views coaching in a societal perspective. Coaching has become important...... as a form of dialogue because the (hyper)complexity of our society. Today, knowledge has to be shaped and applied in specific contexts and situations, and both in our personal lives and in the public space we have to learn to negotiate. Coaching can help us generate new knowledge and manage social....... It is the author’s ambition to elevate coaching and coaching psychology to a new professional level with a new agenda. The term “third generation coaching” may be understood as a sort of manifesto – not in a normative sense but as an invitation to reconsider the main objective of coaching in late- or post...

  16. Integrative Health Coach Training: A Model for Shifting the Paradigm Toward Patient-centricity and Meeting New National Prevention Goals

    Science.gov (United States)

    Smith, Linda L.; Lake, Noelle H.; Simmons, Leigh Ann; Perlman, Adam; Wroth, Shelley

    2013-01-01

    Objective: To describe the evolution, training, and results of an emerging allied health profession skilled in eliciting sustainable health-related behavior change and charged with improving patient engagement. Methods: Through techniques sourced from humanistic and positive psychology, solution-focused and mindfulness-based therapies, and leadership coaching, Integrative Health Coaching (IHC) provides a mechanism to empower patients through various stages of learning and change. IHC also provides a method for the creation and implementation of forward-focused personalized health plans. Results: Clinical studies employing Duke University Integrative Medicine's model of IHC have demonstrated improvements in measures of diabetes and diabetes risk, weight management, and risk for cardiovascular disease and stroke. By supporting and enabling individuals in making major lifestyle changes for the improvement of their health, IHC carries the potential to reduce rates and morbidity of chronic disease and impact myriad aspects of healthcare. Conclusion: As a model of educational and clinical innovation aimed at patient empowerment and lifestyle modification, IHC is aligned well with the tenets and goals of recently sanctioned federal healthcare reform, specifically the creation of the first National Prevention and Health Promotion Strategy. Practice Implications: IHC may allow greater patient-centricity while targeting the lifestyle-related chronic disease that lies at the heart of the current healthcare crisis. PMID:24416674

  17. Towards Tuning the Mechanical Properties of Three-Dimensional Collagen Scaffolds Using a Coupled Fiber-Matrix Model

    Directory of Open Access Journals (Sweden)

    Shengmao Lin

    2015-08-01

    Full Text Available Scaffold mechanical properties are essential in regulating the microenvironment of three-dimensional cell culture. A coupled fiber-matrix numerical model was developed in this work for predicting the mechanical response of collagen scaffolds subjected to various levels of non-enzymatic glycation and collagen concentrations. The scaffold was simulated by a Voronoi network embedded in a matrix. The computational model was validated using published experimental data. Results indicate that both non-enzymatic glycation-induced matrix stiffening and fiber network density, as regulated by collagen concentration, influence scaffold behavior. The heterogeneous stress patterns of the scaffold were induced by the interfacial mechanics between the collagen fiber network and the matrix. The knowledge obtained in this work could help to fine-tune the mechanical properties of collagen scaffolds for improved tissue regeneration applications.

  18. Artificial neural network for modeling the elastic modulus of electrospun polycaprolactone/gelatin scaffolds.

    Science.gov (United States)

    Vatankhah, Elham; Semnani, Dariush; Prabhakaran, Molamma P; Tadayon, Mahdi; Razavi, Shahnaz; Ramakrishna, Seeram

    2014-02-01

    Scaffolds for tissue engineering (TE) require the consideration of multiple aspects, including polymeric composition and the structure and mechanical properties of the scaffolds, in order to mimic the native extracellular matrix of the tissue. Electrospun fibers are frequently utilized in TE due to their tunable physical, chemical, and mechanical properties and porosity. The mechanical properties of electrospun scaffolds made from specific polymers are highly dependent on the processing parameters, which can therefore be tuned for particular applications. Fiber diameter and orientation along with polymeric composition are the major factors that determine the elastic modulus of electrospun nano- and microfibers. Here we have developed a neural network model to investigate the simultaneous effects of composition, fiber diameter and fiber orientation of electrospun polycaprolactone/gelatin mats on the elastic modulus of the scaffolds under ambient and simulated physiological conditions. The model generated might assist bioengineers to fabricate electrospun scaffolds with defined fiber diameters, orientations and constituents, thereby replicating the mechanical properties of the native target tissue.

  19. Bioengineered silk scaffolds in 3D tissue modeling with focus on mammary tissues.

    Science.gov (United States)

    Maghdouri-White, Yas; Bowlin, Gary L; Lemmon, Christopher A; Dréau, Didier

    2016-02-01

    In vitro generation of three-dimensional (3D) biological tissues and organ-like structures is a promising strategy to study and closely model complex aspects of the molecular, cellular, and physiological interactions of tissue. In particular, in vitro 3D tissue modeling holds promises to further our understanding of breast development. Indeed, biologically relevant 3D structures that combine mammary cells and engineered matrices have improved our knowledge of mammary tissue growth, organization, and differentiation. Several polymeric biomaterials have been used as scaffolds to engineer 3D mammary tissues. Among those, silk fibroin-based biomaterials have many biologically relevant properties and have been successfully used in multiple medical applications. Here, we review the recent advances in engineered scaffolds with an emphasis on breast-like tissue generation and the benefits of modified silk-based scaffolds.

  20. An acellular biologic scaffold does not regenerate appreciable de novo muscle tissue in rat models of volumetric muscle loss injury.

    Science.gov (United States)

    Aurora, Amit; Roe, Janet L; Corona, Benjamin T; Walters, Thomas J

    2015-10-01

    Extracellular matrix (ECM) derived scaffolds continue to be investigated for the treatment of volumetric muscle loss (VML) injuries. Clinically, ECM scaffolds have been used for lower extremity VML repair; in particular, MatriStem™, a porcine urinary bladder matrix (UBM), has shown improved functional outcomes and vascularization, but limited myogenesis. However, efficacy of the scaffold for the repair of traumatic muscle injuries has not been examined systematically. In this study, we demonstrate that the porcine UBM scaffold when used to repair a rodent gastrocnemius musculotendinous junction (MTJ) and tibialis anterior (TA) VML injury does not support muscle tissue regeneration. In the MTJ model, the scaffold was completely resorbed without tissue remodeling, suggesting that the scaffold may not be suitable for the clinical repair of muscle-tendon injuries. In the TA VML injury, the scaffold remodeled into a fibrotic tissue and showed functional improvement, but not due to muscle fiber regeneration. The inclusion of physical rehabilitation also did not improve functional response or tissue remodeling. We conclude that the porcine UBM scaffold when used to treat VML injuries may hasten the functional recovery through the mechanism of scaffold mediated functional fibrosis. Thus for appreciable muscle regeneration, repair strategies that incorporate myogenic cells, vasculogenic accelerant and a myoconductive scaffold need to be developed. Published by Elsevier Ltd.

  1. Coaching teachers to improve implementation of the good behavior game.

    Science.gov (United States)

    Becker, Kimberly D; Bradshaw, Catherine P; Domitrovich, Celene; Ialongo, Nicholas S

    2013-11-01

    This study explored the association between coaching and the implementation of the Good Behavior Game (GBG) by 129 urban elementary school teachers. Analyses involving longitudinal data on coaching and teacher implementation quality indicated that coaches strategically varied their use of coaching strategies (e.g., modeling, delivery) based on teacher implementation quality and provided additional support to teachers with low implementation quality. Findings suggest that coaching was associated with improved implementation quality of the GBG. This work lays the foundation for future research examining ways to enhance coach decision-making about teacher implementation.

  2. Valvular interstitial cell seeded poly(glycerol sebacate) scaffolds: toward a biomimetic in vitro model for heart valve tissue engineering.

    Science.gov (United States)

    Masoumi, Nafiseh; Johnson, Katherine L; Howell, M Christian; Engelmayr, George C

    2013-04-01

    Tissue engineered replacement heart valves may be capable of overcoming the lack of growth potential intrinsic to current non-viable prosthetics, and thus could potentially serve as permanent replacements in the surgical repair of pediatric valvular lesions. However, the evaluation of candidate combinations of cells and scaffolds lacks a biomimetic in vitro model with broadly tunable, anisotropic and elastomeric structural-mechanical properties. Toward establishing such an in vitro model, in the current study, porcine aortic and pulmonary valvular interstitial cells (i.e. biomimetic cells) were cultivated on anisotropic, micromolded poly(glycerol sebacate) scaffolds (i.e. biomimetic scaffolds). Following 14 and 28 days of static culture, cell-seeded scaffolds and unseeded controls were assessed for their mechanical properties, and cell-seeded scaffolds were further characterized by confocal fluorescence and scanning electron microscopy, and by collagen and DNA assays. Poly(glycerol sebacate) micromolding yielded scaffolds with anisotropic stiffnesses resembling those of native valvular tissues in the low stress-strain ranges characteristic of physiologic valvular function. Scaffold anisotropy was largely retained upon cultivation with valvular interstitial cells; while the mechanical properties of unseeded scaffolds progressively diminished, cell-seeded scaffolds either retained or exceeded initial mechanical properties. Retention of mechanical properties in cell-seeded scaffolds paralleled the accretion of collagen, which increased significantly from 14 to 28 days. This study demonstrates that valvular interstitial cells can be cultivated on anisotropic poly(glycerol sebacate) scaffolds to yield biomimetic in vitro models with which clinically relevant cells and future scaffold designs can be evaluated.

  3. Effects of Coaching on Teacher Use of Sociocultural Instructional Practices

    Science.gov (United States)

    Teemant, Annela; Wink, Joan; Tyra, Serena

    2011-01-01

    This study evaluates a performance-based instructional coaching model intended to improve teacher pedagogy and classroom organization for educating diverse student populations. Elementary teachers (N = 21) participated in a 30-h workshop and seven individual coaching sessions across an academic year. The coaching model promoted use of the…

  4. Evaluation of borate bioactive glass scaffolds with different pore sizes in a rat subcutaneous implantation model.

    Science.gov (United States)

    Deliormanli, Aylin M; Liu, Xin; Rahaman, Mohamed N

    2014-01-01

    Borate bioactive glass has been shown to convert faster and more completely to hydroxyapatite and enhance new bone formation in vivo when compared to silicate bioactive glass (such as 45S5 and 13-93 bioactive glass). In this work, the effects of the borate glass microstructure on its conversion to hydroxyapatite (HA) in vitro and its ability to support tissue ingrowth in a rat subcutaneous implantation model were investigated. Bioactive borate glass scaffolds, designated 13-93B3, with a grid-like microstructure and pore widths of 300, 600, and 900 µm were prepared by a robocasting technique. The scaffolds were implanted subcutaneously for 4 weeks in Sprague Dawley rats. Silicate 13-93 glass scaffolds with the same microstructure were used as the control. The conversion of the scaffolds to HA was studied as a function of immersion time in a simulated body fluid. Histology and scanning electron microscopy were used to evaluate conversion of the bioactive glass implants to hydroxyapatite, as well as tissue ingrowth and blood vessel formation in the implants. The pore size of the scaffolds was found to have little effect on tissue infiltration and angiogenesis after the 4-week implantation.

  5. Perspectives on Agile Coaching

    Science.gov (United States)

    Fraser, Steven; Lundh, Erik; Davies, Rachel; Eckstein, Jutta; Larsen, Diana; Vilkki, Kati

    There are many perspectives to agile coaching including: growing coaching expertise, selecting the appropriate coach for your context; and eva luating value. A coach is often an itinerant who may observe, mentor, negotiate, influence, lead, and/or architect everything from team organization to system architecture. With roots in diverse fields ranging from technology to sociology coaches have differing motivations and experience bases. This panel will bring together coaches to debate and discuss various perspectives on agile coaching. Some of the questions to be addressed will include: What are the skills required for effective coaching? What should be the expectations for teams or individu als being coached? Should coaches be: a corporate resource (internal team of consultants working with multiple internal teams); an integral part of a specific team; or external contractors? How should coaches exercise influence and au thority? How should management assess the value of a coaching engagement? Do you have what it takes to be a coach? - This panel will bring together sea soned agile coaches to offer their experience and advice on how to be the best you can be!

  6. Regeneration of whole meniscus using meniscal cells and polymer scaffolds in a rabbit total meniscectomy model.

    Science.gov (United States)

    Kang, Sun-Woong; Son, Sun-Mi; Lee, Jae-Sun; Lee, Eung-Seok; Lee, Kwon-Yong; Park, Sang-Guk; Park, Jung-Ho; Kim, Byung-Soo

    2006-09-01

    The current treatments of meniscal lesion in knee joint are not perfect to prevent adverse effects of meniscus injury. Tissue engineering of meniscus using meniscal cells and polymer scaffolds could be an alternative option to treat meniscus injury. This study reports on the regeneration of whole medial meniscus in a rabbit total meniscectomy model using the tissue engineering technique. Biodegradable scaffolds in a meniscal shape were fabricated from polyglycolic acid (PGA) fiber meshes that were mechanically reinforced by bonding PGA fibers at cross points with 75:25 poly(lactic-co-glycolic acid). The compressive modulus of the bonded PGA scaffold was 28-fold higher than that of nonbonded scaffold. Allogeneic meniscal cells were isolated from rabbit meniscus biopsy and cultured in vitro. The expanded meniscal cells were seeded onto the polymer scaffolds, cultured in vitro for 1 week, and transplanted to rabbit knee joints from which medial menisci were removed. Ten or 36 weeks after transplantation, the implants formed neomenisci with the original scaffold shape maintained approximately. Hematoxylin and eosin staining of the sections of the neomenisci at 6 and 10 weeks revealed the regeneration of fibrocartilage. Safranin-O staining showed that abundant proteoglycan was present in the neomenisci at 10 weeks. Masson's trichrome staining indicated the presence of collagen. Immunohistochemical analysis showed that the presence of type I and II collagen in neomenisci at 10 weeks was similar to that of normal meniscal tissue. Biochemical and biomechanical analyses of the tissue-engineered menisci at 36 weeks were performed to determine the quality of the tissue-engineered menisci. Tissue-engineered meniscus showed differences in collagen content and aggregate modulus in comparison with native meniscus. This study demonstrates, for the first time, the feasibility of regenerating whole meniscal cartilage in a rabbit total meniscectomy model using the tissue engineering

  7. Team Dynamics. Implications for Coaching.

    Science.gov (United States)

    Freishlag, Jerry

    1985-01-01

    A recent survey of coaches ranks team cohesion as the most critical problem coaches face. Optimal interpersonal relationships among athletes and their coaches can maximize collective performance. Team dynamics are discussed and coaching tips are provided. (MT)

  8. Scaffolding in L2 Reading: How Repetition and an Auditory Model Help Readers

    Science.gov (United States)

    Taguchi, Etsuo; Gorsuch, Greta; Lems, Kristin; Rosszell, Rory

    2016-01-01

    Reading fluency research and practice have recently undergone some changes. While past studies and interventions focused on reading speed as their main goal, now more emphasis is being placed on exploring the role prosody plays in reading, and how listening to an audio model of a text while reading may act as a form of scaffolding, or aid, to…

  9. Repair of segmental long bone defect in a rabbit radius nonunion model: comparison of cylindrical porous titanium and hydroxyapatite scaffolds.

    Science.gov (United States)

    Zhang, Ming; Wang, Guang-lin; Zhang, Hong-fang; Hu, Xu-dong; Shi, Xiao-yuan; Li, Sen; Lin, Wei

    2014-06-01

    A segmental long bone defect in a rabbit radius nonunion model was repaired using cylindrical porous titanium (Ti) and hydroxyapatite (HA) scaffolds. Each scaffold was produced using the same method, namely, a slurry foaming method. Repairing ability was characterized using x-radiographic score 12 and 24 weeks postprocedure; failure load of the radius-ulna construct, under three-point bending, 12 weeks postprocedure; and the percentage of newly formed bone within the implant, 12 and 24 weeks after postprocedure. For each of these parameters, the difference in the results when porous Ti scaffold was used compared with when HA scaffolds were used was not significant; both porous scaffolds showed excellent repairing ability. Because the trabecular bone is a porous tissue, the interconnected porous scaffolds have the advantages of natural bone, and vasculature can grow into the porous structure to accelerate the osteoconduction and osteointegration between the implant and bone. The porous Ti scaffold not only enhanced the bone repair process, similar to porous HA scaffolds, but also has superior biomechanical properties. The present results suggest that porous Ti scaffolds may have promise for use in the clinical setting.

  10. The Effect of Alendronate Loaded Biphasic Calcium Phosphate Scaffolds on Bone Regeneration in a Rat Tibial Defect Model

    Directory of Open Access Journals (Sweden)

    Kwang-Won Park

    2015-11-01

    Full Text Available This study investigated the effect of alendronate (Aln released from biphasic calcium phosphate (BCP scaffolds. We evaluated the in vitro osteogenic differentiation of Aln/BCP scaffolds using MG-63 cells and the in vivo bone regenerative capability of Aln/BCP scaffolds using a rat tibial defect model with radiography, micro-computed tomography (CT, and histological examination. In vitro studies included the surface morphology of BCP and Aln-loaded BCP scaffolds visualized using field-emission scanning electron microscope, release kinetics of Aln from BCP scaffolds, alkaline phosphatase (ALP activity, calcium deposition, and gene expression. The in vitro studies showed that sustained release of Aln from the BCP scaffolds consisted of porous microstructures, and revealed that MG-63 cells cultured on Aln-loaded BCP scaffolds showed significantly increased ALP activity, calcium deposition, and gene expression compared to cells cultured on BCP scaffolds. The in vivo studies using radiograph and histology examination revealed abundant callus formation and bone maturation at the site in the Aln/BCP groups compared to the control group. However, solid bony bridge formation was not observed at plain radiographs until 8 weeks. Micro-CT analysis revealed that bone mineral density and bone formation volume were increased over time in an Aln concentration-dependent manner. These results suggested that Aln/BCP scaffolds have the potential for controlling the release of Aln and enhance bone formation and mineralization.

  11. Mathematical Modeling of Uniaxial Mechanical Properties of Collagen Gel Scaffolds for Vascular Tissue Engineering

    Directory of Open Access Journals (Sweden)

    Ramiro M. Irastorza

    2015-01-01

    Full Text Available Small diameter tissue-engineered arteries improve their mechanical and functional properties when they are mechanically stimulated. Applying a suitable stress and/or strain with or without a cycle to the scaffolds and cells during the culturing process resides in our ability to generate a suitable mechanical model. Collagen gel is one of the most used scaffolds in vascular tissue engineering, mainly because it is the principal constituent of the extracellular matrix for vascular cells in human. The mechanical modeling of such a material is not a trivial task, mainly for its viscoelastic nature. Computational and experimental methods for developing a suitable model for collagen gels are of primary importance for the field. In this research, we focused on mechanical properties of collagen gels under unconfined compression. First, mechanical viscoelastic models are discussed and framed in the control system theory. Second, models are fitted using system identification. Several models are evaluated and two nonlinear models are proposed: Mooney-Rivlin inspired and Hammerstein models. The results suggest that Mooney-Rivlin and Hammerstein models succeed in describing the mechanical behavior of collagen gels for cyclic tests on scaffolds (with best fitting parameters 58.3% and 75.8%, resp.. When Akaike criterion is used, the best is the Mooney-Rivlin inspired model.

  12. Mathematical modeling of uniaxial mechanical properties of collagen gel scaffolds for vascular tissue engineering.

    Science.gov (United States)

    Irastorza, Ramiro M; Drouin, Bernard; Blangino, Eugenia; Mantovani, Diego

    2015-01-01

    Small diameter tissue-engineered arteries improve their mechanical and functional properties when they are mechanically stimulated. Applying a suitable stress and/or strain with or without a cycle to the scaffolds and cells during the culturing process resides in our ability to generate a suitable mechanical model. Collagen gel is one of the most used scaffolds in vascular tissue engineering, mainly because it is the principal constituent of the extracellular matrix for vascular cells in human. The mechanical modeling of such a material is not a trivial task, mainly for its viscoelastic nature. Computational and experimental methods for developing a suitable model for collagen gels are of primary importance for the field. In this research, we focused on mechanical properties of collagen gels under unconfined compression. First, mechanical viscoelastic models are discussed and framed in the control system theory. Second, models are fitted using system identification. Several models are evaluated and two nonlinear models are proposed: Mooney-Rivlin inspired and Hammerstein models. The results suggest that Mooney-Rivlin and Hammerstein models succeed in describing the mechanical behavior of collagen gels for cyclic tests on scaffolds (with best fitting parameters 58.3% and 75.8%, resp.). When Akaike criterion is used, the best is the Mooney-Rivlin inspired model.

  13. Peer Coaching in TEFL/TESL Programmes

    Science.gov (United States)

    Vacilotto, Silvana; Cummings, Rhoda

    2007-01-01

    The purpose of this study was to investigate the effectiveness of the peer coaching model as a professional development tool for pre-service ESL/EFL teachers, and its possible applicability to the Binational Centres in Brazil, as well as to teacher development programmes in general. Peer coaching, a reflective approach to teacher development,…

  14. Outlining a typology of sports coaching careers

    DEFF Research Database (Denmark)

    Christensen, Mette Krogh

    2014-01-01

    -starter coach. The findings are theorized throughWenger’s concept of paradigmatic pathways and Bourdieu’s concept of cultural capital. The study illuminates paradigmatic trajectories and conversions of cultural capital in high-performance sports coaching careers that may act as models for young athletes...

  15. Enhancing "OJT" Internships with Interactive Coaching

    Science.gov (United States)

    Shoho, Alan R.; Barnett, Bruce G.; Martinez, Peter

    2012-01-01

    The intent of this article is to examine how the best type of internship, i.e., the full-time, job-embedded model can be enhanced using coaching. Before illustrating an exemplary internship program with coaching, this paper describes what an exemplary full-time, job-embedded internship experiences looks like and expounds on the importance of…

  16. Writings as modelling examples: Scaffolds for academic writing in a post-graduate curriculum

    OpenAIRE

    Firssova, Olga

    2014-01-01

    The presented study investigated the effectiveness of learning from models in the context of post-graduate academic writing. Two questions were pursued: whether studying model writings supports mature students in writing in a new genre and whether integrating additional scaffolds in such models has added value. A quasi-experimental control group design study was realised in an on-going distance learning curriculum. Performance on a sequel of writing tasks in a new genre was compared both with...

  17. Understanding Relationship: Maximizing the Effects of Science Coaching

    Science.gov (United States)

    Anderson, Ruth; Feldman, Sue; Minstrell, Jim

    2014-01-01

    There is growing empirical evidence that instructional coaching can help teachers transfer their learning from professional trainings (e.g., new strategies) to classroom practice and that coaching promotes greater collaboration and reflection among teachers. At the same time, however, research on the effectiveness of particular coaching models and…

  18. Teaching Parents Enhanced Milieu Teaching with Words and Signs Using the Teach-Model-Coach-Review Model

    Science.gov (United States)

    Wright, Courtney A.; Kaiser, Ann P.

    2017-01-01

    Measuring treatment fidelity is an essential step in research designed to increase the use of evidence-based practices. For parent-implemented communication interventions, measuring the implementation of the teaching and coaching provided to the parents is as critical as measuring the parents' delivery of the intervention to the child. Both levels…

  19. The emotional coaching model: quantitative and qualitative research into relationships, communication and decisions in physical and sports rehabilitation.

    Science.gov (United States)

    Respizzi, Stefano; Covelli, Elisabetta

    2015-01-01

    The emotional coaching model uses quantitative and qualitative elements to demonstrate some assumptions relevant to new methods of treatment in physical rehabilitation, considering emotional, cognitive and behavioral aspects in patients, whether or not they are sportsmen. Through quantitative tools (Tampa Kinesiophobia Scale, Emotional Interview Test, Previous Re-Injury Test, and reports on test scores) and qualitative tools (training contracts and relationships of emotional alliance or "contagion"), we investigate initial assumptions regarding: the presence of a cognitive and emotional mental state of impasse in patients at the beginning of the rehabilitation pathway; the curative value of the emotional alliance or "emotional contagion" relationship between healthcare provider and patient; the link between the patient's pathology and type of contact with his own body and emotions; analysis of the psychosocial variables for the prediction of possible cases of re-injury for patients who have undergone or are afraid to undergo reconstruction of the anterior cruciate ligament (ACL). Although this approach is still in the experimental stage, the scores of the administered tests show the possibility of integrating quantitative and qualitative tools to investigate and develop a patient's physical, mental and emotional resources during the course of his rehabilitation. Furthermore, it seems possible to identify many elements characterizing patients likely to undergo episodes of re-injury or to withdraw totally from sporting activity. In particular, such patients are competitive athletes, who fear or have previously undergone ACL reconstruction. The theories referred to (the transactional analysis theory, self-determination theory) and the tools used demonstrate the usefulness of continuing this research in order to build a shared coaching model treatment aimed at all patients, sportspeople or otherwise, which is not only physical but also emotional, cognitive and

  20. Coaching doctoral students

    DEFF Research Database (Denmark)

    Godskesen, Mirjam Irene; Kobayashi, Sofie

    2016-01-01

    In this paper we focus on individual coaching carried out by an external coach as a new pedagogical element that can impact doctoral students’ sense of progress in doctoral education. The study used a mixed methods approach in that we draw on quantitative and qualitative data from the evaluation......-reported gains from coaching show that doctoral students experience coaching as an effective method to support the doctoral study process. This study also provides preliminary empirical evidence that coaching of doctoral students can facilitate the doctoral study process so that the doctoral students experience...... an enhanced feeling of progress and that they can change their study behaviour in a positive direction. The study discusses the difference between coaching and supervision, for instance power imbalances and contrary to earlier research into coaching of doctoral students this study indicates that coaching can...

  1. Third Generation Coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2016-01-01

    German abstract: Auf der Grundlage aktueller Sozialforschung, neuer Lerntheorien und Diskurse der Personalführung entfaltet sich ein neues Verständnis von Coaching und Coaching-Psychologie. In der dritten Generation wird Coaching aus gesellschaftlicher Perspektive betrachtet. Wenn sich die...

  2. Becoming a 'good coach'

    NARCIS (Netherlands)

    Jacobs, Frank; Claringbould, Inge; Knoppers, Annelies

    2016-01-01

    The purpose of this paper was to gain insight into how coaches problematized their coaching practices and the process in which they engaged to become what they perceived to be better coaches using a course based on critical reflective practice. We assumed that constant critical self-reflection would

  3. Tumor cell culture on collagen–chitosan scaffolds as three-dimensional tumor model: A suitable model for tumor studies

    Directory of Open Access Journals (Sweden)

    Aziz Mahmoudzadeh

    2016-07-01

    Full Text Available Tumor cells naturally live in three-dimensional (3D microenvironments, while common laboratory tests and evaluations are done in two-dimensional (2D plates. This study examined the impact of cultured 4T1 cancer cells in a 3D collagen–chitosan scaffold compared with 2D plate cultures. Collagen–chitosan scaffolds were provided and passed confirmatory tests. 4T1 tumor cells were cultured on scaffolds and then tumor cells growth rate, resistance to X-ray radiation, and cyclophosphamide as a chemotherapy drug were analyzed. Furthermore, 4T1 cells were extracted from the scaffold model and were injected into the mice. Tumor growth rate, survival rate, and systemic immune responses were evaluated. Our results showed that 4T1 cells infiltrated the scaffolds pores and constructed a 3D microenvironment. Furthermore, 3D cultured tumor cells showed a slower proliferation rate, increased levels of survival to the X-ray irradiation, and enhanced resistance to chemotherapy drugs in comparison with 2D plate cultures. Transfer of extracted cells to the mice caused enhanced tumor volume and decreased life span. This study indicated that collagen–chitosan nanoscaffolds provide a suitable model of tumor that would be appropriate for tumor studies.

  4. Pedagogical Experience of Teaching Financial Coaching

    Directory of Open Access Journals (Sweden)

    Lucy M. Delgadillo

    2015-12-01

    Full Text Available This study reports on the pedagogical experience of teaching a financial coaching course to personal and family finance undergraduate students at XXXX State University. The paper describes the conceptualization of the class, including theoretical frameworks, ethical considerations, practitioner’s models, learning objectives, and competencies. The assessment of the course provided data used by the instructor to refine and adjust future course content and assignments. Quantitative data was collected in pre- and post-tests assessments. The quantitative assessment shows statistically significant gains in specific coaching skills and competencies. The qualitative assessment indicates that, at the end of the course, students had better understanding of the coaching code of ethics and better communication and listening skills. The peer-to-peer coaching exercise was apparently very fear-provoking but valuable for the students. Challenges for teaching financial coaching by future instructors are discussed in the last section

  5. Behavioral Characteristics of "Favorite" Coaches: Implications for Coach Education

    Science.gov (United States)

    Stewart, Craig; Owens, Lynn

    2011-01-01

    The purpose of this paper was to use athletes' and former athletes' memories of their favorite coach to improve coach education curriculum. Player preferences of coaching behavior can affect both their attitudes toward their sport experiences and team performance. By identifying positive coaching behaviors as recalled by athletes, coach educators…

  6. Helping Students with Cognitive Disabilities Improve Social Writing Skills through Email Modeling and Scaffolding

    Science.gov (United States)

    Wang, Xiao-lei; Eberhard, Dominique; Voron, Mike; Bernas, Ronan

    2016-01-01

    The purpose of this study is to examine the effects of email modeling and scaffolding on the social writing quality of students with cognitive disabilities. Ten students from a university-affiliated lab school (mean age = 19.3; SD = 1.2) with an average of IQ of 55.30 (SD = 5.98) and 10 teacher candidates in a university teacher education…

  7. Helping Students with Cognitive Disabilities Improve Social Writing Skills through Email Modeling and Scaffolding

    Science.gov (United States)

    Wang, Xiao-lei; Eberhard, Dominique; Voron, Mike; Bernas, Ronan

    2016-01-01

    The purpose of this study is to examine the effects of email modeling and scaffolding on the social writing quality of students with cognitive disabilities. Ten students from a university-affiliated lab school (mean age = 19.3; SD = 1.2) with an average of IQ of 55.30 (SD = 5.98) and 10 teacher candidates in a university teacher education…

  8. The Discourse Universe of Coaching

    DEFF Research Database (Denmark)

    Nielsen, Anne Ellerup; Nørreklit, Hanne

    2005-01-01

    management guidebook in order to examine whether it matches the general development of society into high modernity. By means of a critical discourse analysis (Fairclough's model) we examine the rhetorical articulation of the coaching concept in terms of established discourses of management. Our analysis...

  9. Urethral tissue regeneration using collagen scaffold modified with collagen binding VEGF in a beagle model.

    Science.gov (United States)

    Jia, Weisheng; Tang, He; Wu, Jianjian; Hou, Xianglin; Chen, Bing; Chen, Wei; Zhao, Yannan; Shi, Chunying; Zhou, Feng; Yu, Wei; Huang, Shengquan; Ye, Gang; Dai, Jianwu

    2015-11-01

    Extensive urethral defects have a serious impact on quality of life, and treatment is challenging. A shortage of material for reconstruction is a key limitation. Improving the properties of biomaterials and making them suitable for urethral reconstruction will be helpful. Previously, we constructed a fusion protein, collagen-binding VEGF (CBD-VEGF), which can bind to collagen scaffold, stimulate cell proliferation, and promote angiogenesis and tissue regeneration. We proposed that CBD-VEGF could improve the performance of collagen in reconstruction of extensive urethral defects. Our results showed that collagen scaffolds modified with CBD-VEGF could promote urethral tissue regeneration and improve the function of the neo-urethra in a beagle extensive urethral defect model. Thus, modifying biomaterials with bioactive factors provides an alternative strategy for the production of suitable biomaterials for urethral reconstruction.

  10. Application of layered poly (L-lactic acid cell free scaffold in a rabbit rotator cuff defect model

    Directory of Open Access Journals (Sweden)

    Inui Atsuyuki

    2011-12-01

    Full Text Available Abstract Background This study evaluated the application of a layered cell free poly (L-lactic acid (PLLA scaffold to regenerate an infraspinatus tendon defect in a rabbit model. We hypothesized that PLLA scaffold without cultivated cells would lead to regeneration of tissue with mechanical properties similar to reattached infraspinatus without tendon defects. Methods Layered PLLA fabric with a smooth surface on one side and a pile-finished surface on the other side was used. Novel form of layered PLLA scaffold was created by superimposing 2 PLLA fabrics. Defects of the infraspinatus tendon were created in 32 rabbits and the PLLA scaffolds were transplanted, four rabbits were used as normal control. Contralateral infraspinatus tendons were reattached to humeral head without scaffold implantation. Histological and mechanical evaluations were performed at 4, 8, and 16 weeks after operation. Results At 4 weeks postoperatively, cell migration was observed in the interstice of the PLLA fibers. Regenerated tissue was directly connected to the bone composed mainly of type III collagen, at 16 weeks postoperatively. The ultimate failure load increased in a time-dependent manner and no statistical difference was seen between normal infraspinatus tendon and scaffold group at 8 and 16 weeks postoperatively. There were no differences between scaffold group and reattach group at each time of point. The stiffness did not improve significantly in both groups. Conclusions A novel form of layered PLLA scaffold has the potential to induce cell migration into the scaffold and to bridge the tendon defect with mechanical properties similar to reattached infraspinatus tendon model.

  11. Examinations of a new long-term degradable electrospun polycaprolactone scaffold in three rat abdominal wall models.

    Science.gov (United States)

    Jangö, Hanna; Gräs, Søren; Christensen, Lise; Lose, Gunnar

    2017-02-01

    Alternative approaches to reinforce native tissue in reconstructive surgery for pelvic organ prolapse are warranted. Tissue engineering combines the use of a scaffold with the regenerative potential of stem cells and is a promising new concept in urogynecology. Our objective was to evaluate whether a newly developed long-term degradable polycaprolactone scaffold could provide biomechanical reinforcement and function as a scaffold for autologous muscle fiber fragments. We performed a study with three different rat abdominal wall models where the scaffold with or without muscle fiber fragments was placed (1) subcutaneously (minimal load), (2) in a partial defect (partial load), and (3) in a full-thickness defect (heavy load). After 8 weeks, no animals had developed hernia, and the scaffold provided biomechanical reinforcement, even in the models where it was subjected to heavy load. The scaffold was not yet degraded but showed increased thickness in all groups. Histologically, we found a massive foreign body response with numerous large giant cells intermingled with the fibers of the scaffold. Cells from added muscle fiber fragments could not be traced by PKH26 fluorescence or desmin staining. Taken together, the long-term degradable polycaprolactone scaffold provided biomechanical reinforcement by inducing a marked foreign-body response and attracting numerous inflammatory cells to form a strong neo-tissue construct. However, cells from the muscle fiber fragments did not survive in this milieu. Properties of the new neo-tissue construct must be evaluated at the time of full degradation of the scaffold before its possible clinical value in pelvic organ prolapse surgery can be evaluated.

  12. Cell-free scaffolds with different stiffness but same microstructure promote bone regeneration in rabbit large bone defect model.

    Science.gov (United States)

    Chen, Guobao; Yang, Li; Lv, Yonggang

    2016-04-01

    To promote bone healing, bone repair biomaterials are increasingly designed to incorporate growth factors. However, the impact of matrix mechanics of cell-free scaffold independent of microstructure on the osteogenic differentiation of endogenous osteoprogenitor cells orchestrating bone repair and regeneration remains not to be fully understood. In our recent study, three-dimensional (3D) scaffolds with different stiffness but same microstructure have been successfully fabricated by coating decellularized bone with collagen/hydroxyapatite (HA) mixture with different collagen rations. It has been demonstrated that the scaffold with optimal stiffness can induce the osteogenic differentiation of MSCs in vitro and in the subcutaneous tissue. The present in vivo study further investigated the repair efficiency of these scaffolds in a rabbit radius with a critical-sized segmental defect model and its potential mechanism. Micro-computed tomography (μ-CT), X-ray and histological analysis were carried out to evaluate the repair capacity of these scaffolds. The results demonstrated that the cell-free scaffold with optimal stiffness incorporation of endogenous osteoprogenitor cells significantly promoted the repair and reconstruction quality of mass bone defect. One of the crucial mechanisms was that hypoxia and stromal cell-derived factor-1α (SDF-1α) mediated mesenchymal stem cells (MSCs) migration by which matrix mechanics exerted influence on bone fracture healing. These findings suggested that only modulating the matrix stiffness of cell-free scaffold can be one of the most attractive strategies for promoting the progression of bone healing.

  13. Effects of the teach-model-coach-review instructional approach on caregiver use of language support strategies and children's expressive language skills.

    Science.gov (United States)

    Roberts, Megan Y; Kaiser, Ann P; Wolfe, Cathy E; Bryant, Julie D; Spidalieri, Alexandria M

    2014-10-01

    In this study, the authors examined the effects of the Teach-Model-Coach-Review instructional approach on caregivers' use of four enhanced milieu teaching (EMT) language support strategies and on their children's use of expressive language. Four caregiver-child dyads participated in a single-subject, multiple-baseline study. Children were between 24 and 42 months of age and had language impairment. Interventionists used the Teach-Model-Coach-Review instructional approach to teach caregivers to use matched turns, expansions, time delays, and milieu teaching prompts during 24 individualized clinic sessions. Caregiver use of each EMT language support strategy and child use of communication targets were the dependent variables. The caregivers demonstrated increases in their use of each EMT language support strategy after instruction. Generalization and maintenance of strategy use to the home was limited, indicating that teaching across routines is necessary to achieve maximal outcomes. All children demonstrated gains in their use of communication targets and in their performance on norm-referenced measures of language. The results indicate that the Teach-Model-Coach-Review instructional approach resulted in increased use of EMT language support strategies by caregivers. Caregiver use of these strategies was associated with positive changes in child language skills.

  14. Biodegradable and bioactive porous scaffold structures prepared using fused deposition modeling.

    Science.gov (United States)

    Korpela, Jyrki; Kokkari, Anne; Korhonen, Harri; Malin, Minna; Närhi, Timo; Seppälä, Jukka

    2013-05-01

    Three-dimensional printing (3DP) refers to a group of additive manufacturing techniques that can be utilized in tissue engineering applications. Fused deposition modeling (FDM) is a 3DP method capable of using common thermoplastic polymers. However, the scope of materials applicable for FDM has not been fully recognized. The purpose of this study was to examine the creation of biodegradable porous scaffold structures using different materials in FDM and to determine the compressive properties and the fibroblast cell response of the structures. To the best of our knowledge, the printability of a poly(ε-caprolactone)/bioactive glass (PCL/BAG) composite and L-lactide/ε-caprolactone 75/25 mol % copolymer (PLC) was demonstrated for the first time. Scanning electron microscope (SEM) images showed BAG particles at the surface of the printed PCL/BAG scaffolds. Compressive testing showed the possibility of altering the compressive stiffness of a scaffold without changing the compressive modulus. Compressive properties were significantly dependent on porosity level and structural geometry. Fibroblast proliferation was significantly higher in polylactide than in PCL or PCL/BAG composite. Optical microscope images and SEM images showed the viability of the cells, which demonstrated the biocompatibility of the structures. Copyright © 2012 Wiley Periodicals, Inc.

  15. Polymeric electrospun scaffolds: neuregulin encapsulation and biocompatibility studies in a model of myocardial ischemia.

    Science.gov (United States)

    Simón-Yarza, Teresa; Rossi, Angela; Heffels, Karl-Heinz; Prósper, Felipe; Groll, Jürgen; Blanco-Prieto, Maria J

    2015-05-01

    Cardiovascular disease represents one of the major health challenges in modern times and is the number one cause of death globally. Thus, numerous studies are under way to identify effective cell- and/or growth factor (GF)-based therapies for repairing damaged cardiac tissue. In this regard, improving the engraftment or survival of regenerative cells and prolonging GF exposure have become fundamental goals in advancing these therapeutic approaches. Biomaterials have emerged as innovative scaffolds for the delivery of both cells and proteins in tissue engineering applications. In the present study, electrospinning was used to generate smooth homogenous polymeric fibers, which consisted of a poly(lactic-co-glycolic acid) (PLGA)/NCO-sP(EO-stat-PO) polymer blend encapsulating the cardioactive GF, Neuregulin-1 (Nrg). We evaluated the biocompatibility and degradation of this Nrg-containing biomaterial in a rat model of myocardial ischemia. Histological analysis revealed the presence of an initial acute inflammatory response after implantation, which was followed by a chronic inflammatory phase, characterized by the presence of giant cells. Notably, the scaffold remained in the heart after 3 months. Furthermore, an increase in the M2:M1 macrophage ratio following implantation suggested the induction of constructive tissue remodeling. Taken together, the combination of Nrg-encapsulating scaffolds with cells capable of inducing cardiac regeneration could represent an ambitious and promising therapeutic strategy for repairing diseased or damaged myocardial tissue.

  16. Modeling of enhanced catalysis in multienzyme nanostructures: effect of molecular scaffolds, spatial organization, and concentration.

    Science.gov (United States)

    Roberts, Christopher C; Chang, Chia-en A

    2015-01-13

    Colocalized multistep enzymatic reaction pathways within biological catabolic and metabolic processes occur with high yield and specificity. Spatial organization on membranes or surfaces may be associated with increased efficiency of intermediate substrate transfer. Using a new Brownian dynamics package, GeomBD, we explored the geometric features of a surface-anchored enzyme system by parallel coarse-grained Brownian dynamics simulations of substrate diffusion over microsecond (μs) to millisecond (ms) time scales. We focused on a recently developed glucose oxidase (GOx), horseradish peroxidase (HRP), and DNA origami-scaffold enzyme system, where the H2O2 substrate of HRP is produced by GOx. The results revealed and explained a significant advantage in catalytic enhancement by optimizing interenzyme distance and orientation in the presence of the scaffold model. The planar scaffold colocalized the enzymes and provided a diffusive barrier that enhanced substrate transfer probability, becoming more relevant with increasing interenzyme distance. The results highlight the importance of protein geometry in the proper assessment of distance and orientation dependence on the probability of substrate transfer. They shed light on strategies for engineering multienzyme complexes and further investigation of enhanced catalytic efficiency for substrate diffusion between membrane-anchoring proteins.

  17. Control of dense collagen gel scaffolds for tissue engineering through measurement and modelling of hydraulic permeability

    Science.gov (United States)

    Serpooshan, Vahid

    Among various natural biopolymers, type I collagen gels have demonstrated the highest potential as biomimetic scaffolds for tissue engineering (TE). However, the successful application of collagen gels requires a greater understanding of the relationship between their microstructure and physical-mechanical properties. Therefore, a precise method to modulate collagen gel microstructure in order to attain optimal scaffold properties for diverse biomedical applications is necessary. This dissertation describes a new approach to produce collagen gels with defined microstructures, quantified by hydraulic permeability ( k), in order to optimize scaffold properties for TE applications. It was hypothesized that the measurement of k can be used to study the role of microstructure in collagen gel properties, as well as cell function and cell-scaffold interactions. Applying increasing levels of plastic compression (PC) to the highly hydrated collagen gels resulted in an increase in collagen fibrillar density, reduced Happel model derived k values, increased gel stiffness, promoted MSC metabolic activity, osteogenic differentiation, and mineral deposition, while cell-induced gel contraction diminished. Thus, collagen gels with lower k and higher stiffness values exhibited greater potential for bone tissue engineering. Correlating between collagen gel microstructure, k, and fibroblast function within collagen gels indicated that increasing the level of PC yielded a reduction in pore size and an increase in fibril bundle diameter. Decrease in k values resulted in a decrease in gel contraction and an increase in cell metabolic activity. An increase in cell density accelerated contraction. Therefore, fibroblast function within collagen gels can be optimised by a balance between the microstructure, k, and cell seeding density. Developing a micromechanical model to measure experimental k of collagen gels during confined compression revealed the formation of a dense collagen lamella

  18. Functional 3-D cardiac co-culture model using bioactive chitosan nanofiber scaffolds.

    Science.gov (United States)

    Hussain, Ali; Collins, George; Yip, Derek; Cho, Cheul H

    2013-02-01

    The in vitro generation of a three-dimensional (3-D) myocardial tissue-like construct employing cells, biomaterials, and biomolecules is a promising strategy in cardiac tissue regeneration, drug testing, and tissue engineering applications. Despite significant progress in this field, current cardiac tissue models are not yet able to stably maintain functional characteristics of cardiomyocytes for long-term culture and therapeutic purposes. The objective of this study was to fabricate bioactive 3-D chitosan nanofiber scaffolds using an electrospinning technique and exploring its potential for long-term cardiac function in the 3-D co-culture model. Chitosan is a natural polysaccharide biomaterial that is biocompatible, biodegradable, non-toxic, and cost effective. Electrospun chitosan was utilized to provide structural scaffolding characterized by scale and architectural resemblance to the extracellular matrix (ECM) in vivo. The chitosan fibers were coated with fibronectin via adsorption in order to enhance cellular adhesion to the fibers and migration into the interfibrous milieu. Ventricular cardiomyocytes were harvested from neonatal rats and studied in various culture conditions (i.e., mono- and co-cultures) for their viability and function. Cellular morphology and functionality were examined using immunofluorescent staining for alpha-sarcomeric actin (SM-actin) and gap junction protein, Connexin-43 (Cx43). Scanning electron microscopy (SEM) and light microscopy were used to investigate cellular morphology, spatial organization, and contractions. Calcium indicator was used to monitor calcium ion flux of beating cardiomyocytes. The results demonstrate that the chitosan nanofibers retained their cylindrical morphology in long-term cell cultures and exhibited good cellular attachment and spreading in the presence of adhesion molecule, fibronectin. Cardiomyocyte mono-cultures resulted in loss of cardiomyocyte polarity and islands of non-coherent contractions. However

  19. Group health coaching: strengths, challenges, and next steps.

    Science.gov (United States)

    Armstrong, Colin; Wolever, Ruth Q; Manning, Linda; Elam, Roy; Moore, Margaret; Frates, Elizabeth Pegg; Duskey, Heidi; Anderson, Chelsea; Curtis, Rebecca L; Masemer, Susan; Lawson, Karen

    2013-05-01

    There is great need for cost effective approaches to increase patient engagement and improve health and well-being. Health and wellness coaching has recently demonstrated great promise, but the majority of studies to date have focused on individual coaching (ie, one coach with one client). Newer initiatives are bringing a group coaching model from corporate leadership development and educational settings into the healthcare arena. A group approach potentially increases cost-effective access to a larger number of clients and brings the possible additional benefit of group support. This article highlights some of the group coaching approaches currently being conducted across the United States. The group coaching interventions included in this overview are offered by a variety of academic and private sector institutions, use both telephonic and in-person coaching, and are facilitated by professionally trained health and wellness coaches as well as trained peer coaches. Strengths and challenges experienced in these efforts are summarized, as are recommendations to address those challenges. A working definition of "Group Health and Wellness Coaching" is proposed, and important next steps for research and for the training of group coaches are presented.

  20. Impact of a Teacher-as-Coach Model: Improving Paraprofessionals Fidelity of Implementation of Discrete Trial Training for Students with Moderate-to-Severe Developmental Disabilities.

    Science.gov (United States)

    Mason, Rose A; Schnitz, Alana G; Wills, Howard P; Rosenbloom, Raia; Kamps, Debra M; Bast, Darcey

    2017-03-14

    Ensuring educational progress for students with moderate-to-severe developmental disabilities requires exposure to well executed evidence-based practices. This necessitates that the special education workforce, including paraprofessionals, be well-trained. Yet evidence regarding effective training mechanisms for paraprofessionals is limited. A multiple baseline design across five teachers was used to evaluate the impact of online instructional modules and a Practice-Based Coaching (PBC) model with teacher-as-coach on their paraprofessionals' fidelity of discrete trial training (DTT). Implementation of the instructional modules yielded little to no change in paraprofessionals' DTT fidelity, however, a clear functional relation between PBC and improvement in paraprofessionals' fidelity of implementation of DTT was demonstrated. Implications for future research and practice are discussed.

  1. The shuttling scaffold model for prevention of yeast pheromone pathway misactivation.

    Science.gov (United States)

    Singh, Aditya P; Andries, Erik; Edwards, Jeremy S; Steinberg, Stanly

    2012-12-01

    The molecular scaffold in the yeast pheromone pathway, Ste5, shuttles continuously between the nucleus and the cytoplasm. Ste5 undergoes oligomerization reaction in the nucleus. Upon pheromone stimulation, the Ste5 dimer is rapidly exported out of the nucleus and recruited to the plasma membrane for pathway activation. This clever device on part of the yeast cell is thought to prevent pathway misactivation at high enough levels of Ste5 in the absence of pheromone. We have built a spatiotemporal model of signaling in this pathway to describe its regulation. Our present work underscores the importance of spatial modeling of cell signaling networks to understand their control and functioning.

  2. Building successful student-athlete coach relationships: examining coaching practices and commitment to the coach

    National Research Council Canada - National Science Library

    Rezania, Davar; Gurney, Robert

    2014-01-01

    .... We examined the impact of commitment to the coach on the coaching outcome of in-role behaviour, and the influence of coaching practices, of information sharing, training, and encouraging teamwork...

  3. The cost-effectiveness of hospital-based telephone coaching for people with type 2 diabetes: a 10 year modelling analysis.

    Science.gov (United States)

    Varney, J E; Liew, D; Weiland, T J; Inder, W J; Jelinek, G A

    2016-09-27

    Type 2 diabetes (T2DM) is a burdensome condition for individuals to live with and an increasingly costly condition for health services to treat. Cost-effective treatment strategies are required to delay the onset and slow the progression of diabetes related complications. The Diabetes Telephone Coaching Study (DTCS) demonstrated that telephone coaching is an intervention that may improve the risk factor status and diabetes management practices of people with T2DM. Measuring the cost effectiveness of this intervention is important to inform funding decisions that may facilitate the translation of this research into clinical practice. The purpose of this study is to assess the cost-effectiveness of telephone coaching, compared to usual diabetes care, in participants with poorly controlled T2DM. A cost utility analysis was undertaken using the United Kingdom Prospective Diabetes Study (UKPDS) Outcomes Model to extrapolate outcomes collected at 6 months in the DTCS over a 10 year time horizon. The intervention's impact on life expectancy, quality-adjusted life expectancy (QALE) and costs was estimated. Costs were reported from a health system perspective. A 5 % discount rate was applied to all future costs and effects. One-way sensitivity analyses were conducted to reflect uncertainty surrounding key input parameters. The intervention dominated the control condition in the base-case analysis, contributing to cost savings of $3327 per participant, along with non-significant improvements in QALE (0.2 QALE) and life expectancy (0.3 years). The cost of delivering the telephone coaching intervention continuously, for 10 years, was fully recovered through cost savings and a trend towards net health benefits. Findings of cost savings and net health benefits are rare and should prove attractive to decision makers who will determine whether this intervention is implemented into clinical practice. ACTRN12609000075280.

  4. Leadership coaching experiences of clients with Alexithymia

    OpenAIRE

    Frans Cilliers

    2012-01-01

    Orientation: Leaders who find it difficult to connect emotionally with colleagues are often seen as incompetent, the idea that they may suffer from alexithymia – an inability to feel – is not taken into account. This coaching model seemed to be not successful in changing this behaviour pattern.Research purpose: The purpose of the research was to describe the coaching experiences of leaders with symptoms of alexithymia and to formulate hypotheses around their leadership experiences.Motivation ...

  5. Integral transformational coaching

    NARCIS (Netherlands)

    Keizer, W.A.J.; Nandram, S.S.

    2009-01-01

    In Chap. 12, Keizer and Nandram present the concept of Integral Transformational Coaching based on the concept of Flow and its effects on work performance. Integral Transformational Coaching is a method that prevents and cures unhealthy stress and burnout. They draw on some tried and tested spiritua

  6. Integral transformational coaching

    NARCIS (Netherlands)

    Keizer, W.A.J.; Nandram, S.S.

    2009-01-01

    In Chap. 12, Keizer and Nandram present the concept of Integral Transformational Coaching based on the concept of Flow and its effects on work performance. Integral Transformational Coaching is a method that prevents and cures unhealthy stress and burnout. They draw on some tried and tested

  7. Quality Coaching Counts

    Science.gov (United States)

    Gould, Daniel

    2016-01-01

    Scholastic sport is a double-edged sword that can have positive or negative effects. Whether those effects are positive or negative depends on those who wield that sword--chiefly, the school's sports coach. While it is clear that coaches make a difference in ensuring that educational athletics lead to beneficial outcomes for student-athletes, a…

  8. Coaching i perspektiv

    DEFF Research Database (Denmark)

    Bogen er en grundbog, der sætter coaching ind i et større perspektiv og en bredere sammenhæng.......Bogen er en grundbog, der sætter coaching ind i et større perspektiv og en bredere sammenhæng....

  9. Coaching som styringsteknologi

    DEFF Research Database (Denmark)

    Pedersen, Anita Monnerup

    2010-01-01

    Coaching er ikke et neutralt værktøj, men producerer begrænsninger og muligheder for, hvad der kan tales om......Coaching er ikke et neutralt værktøj, men producerer begrænsninger og muligheder for, hvad der kan tales om...

  10. Coaching af dit studieliv

    DEFF Research Database (Denmark)

    Hansen, Rasmus Thorning

    2008-01-01

    En generel beskrivelse af de problemer specialestuderende sidder med og hvorledes coaching kan hjælpe med at (gen)skabe motivation og fokus......En generel beskrivelse af de problemer specialestuderende sidder med og hvorledes coaching kan hjælpe med at (gen)skabe motivation og fokus...

  11. Coaching Barometret 2009

    DEFF Research Database (Denmark)

    Wittrock, Christian; Didriksen, Vibeke; Stelter, Reinhard

    2009-01-01

    Coaching synes udbredt i danske organisationer og anvendes tilsyneladende i et utal af sammenhænge og på alle niveauer i organisationen. Blandt de adspurgte HR-ansvarlige er der generelt stor tilfredshed med coaching. Nærværende undersøgelse udgør et første overbliksbillede, som kan lede videre til...

  12. Coaching for viderekomne

    DEFF Research Database (Denmark)

    Skytte Gørtz, Kim Erik

    Bogen går i dybden med begrebet om coaching i en undersøgelse af, hvilken funktion og betydning filosofi kan have på og i coachprocessen......Bogen går i dybden med begrebet om coaching i en undersøgelse af, hvilken funktion og betydning filosofi kan have på og i coachprocessen...

  13. Learning Developmental Coaching

    Science.gov (United States)

    Hunt, James M.; Weintraub, Joseph R.

    2004-01-01

    This article describes an educational intervention designed to promote the ability and willingness of MBA students to lead through coaching. MBA leadership students are trained to serve as coaches for undergraduate business students in a developmental assessment center. In this compelling context, their main source of influence is the ability to…

  14. Instructional Coaching. Issue Brief

    Science.gov (United States)

    Kowal, Julie; Steiner, Lucy

    2007-01-01

    Schools and districts invest a great deal of time and money in professional development for teachers through instructional coaching. With this effort comes the responsibility to design coaching programs that have the greatest potential to improve classroom instruction and, in turn, increase student learning. What research is available to help…

  15. Coaching Barometret 2009

    DEFF Research Database (Denmark)

    Wittrock, Christian; Didriksen, Vibeke; Stelter, Reinhard

    2009-01-01

    Coaching synes udbredt i danske organisationer og anvendes tilsyneladende i et utal af sammenhænge og på alle niveauer i organisationen. Blandt de adspurgte HR-ansvarlige er der generelt stor tilfredshed med coaching. Nærværende undersøgelse udgør et første overbliksbillede, som kan lede videre til...

  16. Implantation of a Poly-L-Lactide GCSF-Functionalized Scaffold in a Model of Chronic Myocardial Infarction.

    Science.gov (United States)

    Spadaccio, Cristiano; Nappi, Francesco; De Marco, Federico; Sedati, Pietro; Taffon, Chiara; Nenna, Antonio; Crescenzi, Anna; Chello, Massimo; Trombetta, Marcella; Gambardella, Ivancarmine; Rainer, Alberto

    2017-02-01

    A previously developed poly-L-lactide scaffold releasing granulocyte colony-stimulating factor (PLLA/GCSF) was tested in a rabbit chronic model of myocardial infarction (MI) as a ventricular patch. Control groups were constituted by healthy, chronic MI and nonfunctionalized PLLA scaffold. PLLA-based electrospun scaffold efficiently integrated into a chronic infarcted myocardium. Functionalization of the biopolymer with GCSF led to increased fibroblast-like vimentin-positive cellular colonization and reduced inflammatory cell infiltration within the micrometric fiber mesh in comparison to nonfunctionalized scaffold; PLLA/GCSF polymer induced an angiogenetic process with a statistically significant increase in the number of neovessels compared to the nonfunctionalized scaffold; PLLA/GCSF implanted at the infarcted zone induced a reorganization of the ECM architecture leading to connective tissue deposition and scar remodeling. These findings were coupled with a reduction in end-systolic and end-diastolic volumes, indicating a preventive effect of the scaffold on ventricular dilation, and an improvement in cardiac performance.

  17. Bone regeneration of hydroxyapatite/alumina bilayered scaffold with 3 mm passage-like medullary canal in canine tibia model.

    Science.gov (United States)

    Kim, Jong Min; Son, Jun Sik; Kang, Seong Soo; Kim, Gonhyung; Choi, Seok Hwa

    2015-01-01

    The aim of this study was to evaluate the bone regeneration of hydroxyapatite (HA)/alumina bilayered scaffold with a 3 mm passage-like medullary canal in a beagle tibia model. A porous HA/alumina scaffold was fabricated using a polymeric template-coating technique. HA/alumina scaffold dimensions were 10 mm in outer diameter, 20 mm in length, and with either a 3 mm passage or no passage. A 20 mm segmental defect was induced using an oscillating saw through the diaphysis of the beagle tibia. The defects of six beagles were filled with HA/alumina bilayered scaffolds with a 3 mm passage or without. The segmental defect was fixated using one bone plate and six screws. Bone regeneration within the HA/alumina scaffolds was observed at eight weeks after implantation. The evaluation of bone regeneration within the scaffolds after implantation in a beagle tibia was performed using radiography, computerized tomography (CT), micro-CT, and fluorescence microscopy. New bone successfully formed in the tibia defects treated with 3 mm passage HA/alumina scaffolds compared to without-passage HA/alumina scaffolds. It was concluded that the HA/alumina bilayered scaffold with 3 mm passage-like medullary canal was instrumental in inducing host-scaffold engraftment of the defect as well as distributing the newly formed bone throughout the scaffold at 8 weeks after implantation.

  18. Bone Regeneration of Hydroxyapatite/Alumina Bilayered Scaffold with 3 mm Passage-Like Medullary Canal in Canine Tibia Model

    Directory of Open Access Journals (Sweden)

    Jong Min Kim

    2015-01-01

    Full Text Available The aim of this study was to evaluate the bone regeneration of hydroxyapatite (HA/alumina bilayered scaffold with a 3 mm passage-like medullary canal in a beagle tibia model. A porous HA/alumina scaffold was fabricated using a polymeric template-coating technique. HA/alumina scaffold dimensions were 10 mm in outer diameter, 20 mm in length, and with either a 3 mm passage or no passage. A 20 mm segmental defect was induced using an oscillating saw through the diaphysis of the beagle tibia. The defects of six beagles were filled with HA/alumina bilayered scaffolds with a 3 mm passage or without. The segmental defect was fixated using one bone plate and six screws. Bone regeneration within the HA/alumina scaffolds was observed at eight weeks after implantation. The evaluation of bone regeneration within the scaffolds after implantation in a beagle tibia was performed using radiography, computerized tomography (CT, micro-CT, and fluorescence microscopy. New bone successfully formed in the tibia defects treated with 3 mm passage HA/alumina scaffolds compared to without-passage HA/alumina scaffolds. It was concluded that the HA/alumina bilayered scaffold with 3 mm passage-like medullary canal was instrumental in inducing host-scaffold engraftment of the defect as well as distributing the newly formed bone throughout the scaffold at 8 weeks after implantation.

  19. The reparative response to cross-linked collagen-based scaffolds in a rat spinal cord gap model.

    Science.gov (United States)

    Cholas, Rahmatullah H; Hsu, Hu-Ping; Spector, Myron

    2012-03-01

    Prior work demonstrated the improvement of peripheral nerve regeneration in gaps implanted with collagen scaffold-filled collagen tubes, compared with nerve autografts, and the promise of such implants for treating gaps in spinal cord injury (SCI) in rats. The objective of this study was to investigate collagen implants alone and incorporating select therapeutic agents in a 5-mm full-resection gap model in the rat spinal cord. Two studies were performed, one with a 6-week time point and one with a 2-week time point. For the 6-week study the groups included: (1) untreated control, (2) dehydrothermally (DHT)-cross-linked collagen scaffold, (3) DHT-cross-linked collagen scaffold seeded with adult rat neural stem cells (NSCs), and (4) DHT-cross-linked collagen scaffold incorporating plasmid encoding glial cell line-derived neurotropic factor (pGDNF). The 2-week study groups were: (1) nontreated control, (2) DHT-cross-linked collagen scaffold; (3) DHT-cross-linked collagen scaffold containing laminin; and (4) carbodiimide-cross-linked collagen scaffold containing laminin. The tissue filling the defect of all groups at 6 weeks was largely composed of fibrous scar; however, the tissue was generally more favorably aligned with the long axis of the spinal cord in all of the treatment groups, but not in the control group. Quantification of the percentage of animals per group containing cystic cavities in the defect showed a trend toward fewer rats with cysts in the groups in which the scaffolds were implanted compared to control. All of the collagen implants were clearly visible and mostly intact after 2 weeks. A band of fibrous tissue filling the control gaps was not seen in the collagen implant groups. In all of the groups there was a narrowing of the spinal canal within the gap as a result of surrounding soft tissue collapse into the defect. The narrowing of the spinal canal occurred to a greater extent in the control and DHT scaffold alone groups compared to the DHT

  20. Coaching af nystartede universitetsstuderende

    DEFF Research Database (Denmark)

    Spaten, Ole Michael; Løkken, Lillith Olesen; Kyndesen, Anna Imer

    2011-01-01

    Mål: At undersøge hvorvidt fire coachingpsykologiske sessioner kunne reducere stress, angst og depressions niveau, samt forøge velvære hos 1.semesters studerende. At belyse hvilken betydning coaching får for de studerende. Design: Mixed method design med før- og eftertest, samt kontrolgruppe, (N=52......). Kvalitative interviews med fire deltagere før og efter coaching interventionen. Metode: Ni erfarne coaches gennemførte fire sessioner med 52 første semesters studerende fra Aalborg universitet. Deltagerne udfyldte DASS-21, Subjective Wellbeing Scale og Adult Hope Scale før og efter coaching interventionerne....... De kvalitative interviews blev analyseret med Interpretative Phenomenological Analysis (IPA). Resultater: En markant lavere stigning i depressionsniveau (DASS-21) hos coaching gruppen. Angstniveauet faldt i begge grupper, men et større fald i coachinggruppen end i ventelistegruppen. Håb-niveauet steg...

  1. Coaching af nystartede universitetsstuderende

    DEFF Research Database (Denmark)

    Spaten, Ole Michael; Løkken, Lillith Olesen; Kyndesen, Anna Imer

    2011-01-01

    Mål: At undersøge hvorvidt fire coachingpsykologiske sessioner kunne reducere stress, angst og depressions niveau, samt forøge velvære hos 1.semesters studerende. At belyse hvilken betydning coaching får for de studerende. Design: Mixed method design med før- og eftertest, samt kontrolgruppe, (N=52......). Kvalitative interviews med fire deltagere før og efter coaching interventionen. Metode: Ni erfarne coaches gennemførte fire sessioner med 52 første semesters studerende fra Aalborg universitet. Deltagerne udfyldte DASS-21, Subjective Wellbeing Scale og Adult Hope Scale før og efter coaching interventionerne....... De kvalitative interviews blev analyseret med Interpretative Phenomenological Analysis (IPA). Resultater: En markant lavere stigning i depressionsniveau (DASS-21) hos coaching gruppen. Angstniveauet faldt i begge grupper, men et større fald i coachinggruppen end i ventelistegruppen. Håb-niveauet steg...

  2. Psychometric properties of the Belgian coach version of the coach-athlete relationship questionnaire (CART-Q).

    Science.gov (United States)

    Balduck, A-L; Jowett, S

    2010-10-01

    The study examined the psychometric properties of the Belgian coach version of the Coach-Athlete Relationship Questionnaire (CART-Q). The questionnaire includes three dimensions (Closeness, Commitment, and Complementarity) in a model that intends to measure the quality of the coach-athlete relationship. Belgian coaches (n=144) of athletes who performed at various competition levels in such sports as football, basketball, and volleyball responded to the CART-Q and to the Leadership Scale for Sport (LSS). A confirmatory factor analysis proved to be slightly more satisfactory for a three-order factor model, compared with a hierarchical first-order factor model. The three factors showed acceptable internal consistency scores. Moreover, functional associations between the three factors and coach leadership behaviors were found offering support to the instrument's concurrent validity. The findings support previous validation studies and verify the psychometric properties of the CART-Q applied to Belgian coaches of team sports.

  3. A Model for Increasing Reform Implementation and Teacher Efficacy: Teacher Peer Coaching in Grades 3 and 6 Mathematics

    Science.gov (United States)

    Bruce, Catherine D.; Ross, John A.

    2008-01-01

    This study examined the effects of peer coaching on mathematics teaching practices and teacher beliefs about their capacity to have an impact on student learning. Twelve teachers in grades 3 and 6 participated in a brief but intensive professional development program over six months. The program focused on effective mathematics teaching strategies…

  4. Implementation and Acceptability of an Adapted Classroom Check-Up Coaching Model to Promote Culturally Responsive Classroom Management

    Science.gov (United States)

    Pas, Elise T.; Larson, Kristine E.; Reinke, Wendy M.; Herman, Keith C.; Bradshaw, Catherine P.

    2016-01-01

    Literature suggests that improving teacher use of culturally responsive classroom management strategies may reduce the disproportionate number of racial and ethnic minority students who receive exclusionary discipline actions and are identified as needing special education, particularly for emotional and behavioral disorders. Coaching teachers is…

  5. CLASSIC APPROACH TO BUSINESS COACHING

    OpenAIRE

    Żukowska, Joanna

    2011-01-01

    The purpose of this paper is to present business coaching in a classical way. An overview of coaching definitions will be provided. Attention will be drawn to coaching components and varieties. Moreover, a brief description of coach competences and tools supporting their work will be offered. Joanna Żukowska

  6. Biomimetic Multispiked Connecting Ti-Alloy Scaffold Prototype for Entirely-Cementless Resurfacing Arthroplasty Endoprostheses—Exemplary Results of Implantation of the Ca-P Surface-Modified Scaffold Prototypes in Animal Model and Osteoblast Culture Evaluation

    Directory of Open Access Journals (Sweden)

    Ryszard Uklejewski

    2016-06-01

    Full Text Available We present here—designed, manufactured, and tested by our research team—the Ti-alloy prototype of the multispiked connecting scaffold (MSC-Scaffold interfacing the components of resurfacing arthroplasty (RA endoprostheses with bone. The spikes of the MSC-Scaffold prototype mimic the interdigitations of the articular subchondral bone, which is the natural biostructure interfacing the articular cartilage with the periarticular trabecular bone. To enhance the osteoinduction/osteointegration potential of the MSC-Scaffold, the attempts to modify its bone contacting surfaces by the process of electrochemical cathodic deposition of Ca-P was performed with further immersion of the MSC-Scaffold prototypes in SBF in order to transform the amorphous calcium-phosphate coating in hydroxyapatite-like (HA-like coating. The pilot experimental study of biointegration of unmodified and Ca-P surface-modified MSC-Scaffold prototypes was conducted in an animal model (swine and in osteoblast cell culture. On the basis of a microscope-histological method the biointegration was proven by the presence of trabeculae in the interspike spaces of the MSC-Scaffold prototype on longitudinal and cross-sections of bone-implant specimens. The percentage of trabeculae in the area between the spikes of specimen containing Ca-P surface modified scaffold prototype observed in microCT reconstructions of the explanted joints was visibly higher than in the case of unmodified MSC-Scaffold prototypes. Significantly higher Alkaline Phosphatase (ALP activity and the cellular proliferation in the case of Ca-P-modified MSC-Scaffold pre-prototypes, in comparison with unmodified pre-prototypes, was found in osteoblast cell cultures. The obtained results of experimental implantation in an animal model and osteoblast cell culture evaluations of Ca-P surface-modified and non-modified biomimetic MSC-Scaffold prototypes for biomimetic entirely-cementless RA endoprostheses indicate the

  7. Linking Narcissism, Motivation, and Doping Attitudes in Sport: A Multilevel Investigation Involving Coaches and Athletes.

    Science.gov (United States)

    Matosic, Doris; Ntoumanis, Nikos; Boardley, Ian David; Stenling, Andreas; Sedikides, Constantine

    2016-12-01

    Research on coaching (Bartholomew, Ntoumanis, & Thøgersen-Ntoumani, 2009) has shown that coaches can display controlling behaviors that have detrimental effects on athletes' basic psychological needs and quality of sport experiences. The current study extends this literature by considering coach narcissism as a potential antecedent of coaches' controlling behaviors. Further, the study tests a model linking coaches' (n = 59) own reports of narcissistic tendencies with athletes' (n = 493) perceptions of coach controlling behaviors, experiences of need frustration, and attitudes toward doping. Multilevel path analysis revealed that coach narcissism was directly and positively associated with athletes' perceptions of controlling behaviors and was indirectly and positively associated with athletes' reports of needs frustration. In addition, athletes' perceptions of coach behaviors were positively associated-directly and indirectly-with attitudes toward doping. The findings advance understanding of controlling coach behaviors, their potential antecedents, and their associations with athletes' attitudes toward doping.

  8. Computational design of model scaffold for anion recognition based on the 'C(α) NN' motif.

    Science.gov (United States)

    Sheet, Tridip; Ghosh, Suvankar; Pal, Debnath; Banerjee, Raja

    2017-01-01

    The 'novel phosphate binding 'C(α) NN' motif', consisting of three consecutive amino acid residues, usually occurs in the protein loop regions preceding a helix. Recent computational and complementary biophysical experiments on a series of chimeric peptides containing the naturally occurring 'C(α) NN' motif at the N-terminus of a designed helix establishes that the motif segment recognizes the anion (sulfate and phosphate ions) through local interaction along with extension of the helical conformation which is thermodynamically favored even in a context-free, nonproteinaceous isolated system. However, the strength of the interaction depends on the amino acid sequence/conformation of the motif. Such a locally-mediated recognition of anions validates its intrinsic affinity towards anions and confirms that the affinity for recognition of anions is embedded within the 'local sequence' of the motif. Based on the knowledge gathered on the sequence/structural aspects of the naturally occurring 'C(α) NN' segment, which provides the guideline for rationally engineering model scaffolds, we have modeled a series of templates and investigated their interactions with anions using computational approach. Two of these designed scaffolds show more efficient anion recognition than those of the naturally occurring 'C(α) NN' motif which have been studied. This may provide an avenue in designing better anion receptors suitable for various biochemical applications.

  9. Tyrosine-derived polycarbonate scaffolds for bone regeneration in a rabbit radius critical-size defect model.

    Science.gov (United States)

    Kim, Jinku; McBride, Sean; Donovan, Amy; Darr, Aniq; Magno, Maria Hanshella R; Hollinger, Jeffrey O

    2015-05-08

    The aim of the study was to determine bone regeneration in a rabbit radius critical-size defect (CSD) model using a specific polymer composition (E1001(1k)) from a library of tyrosine-derived polycarbonate scaffolds coated with a calcium phosphate (CP) formulation (E1001(1k) + CP) supplemented with recombinant human bone morphogenetic protein-2 (rhBMP-2). Specific doses of rhBMP-2 (0, 17, and 35 μg/scaffold) were used. E1001(1k) + CP scaffolds were implanted in unilateral segmental defects (15 mm length) in the radial diaphyses of New Zealand White rabbits. At 4 and 8 weeks post-implantation, bone regeneration was determined using micro-computed tomography (µCT), histology, and histomorphometry. The quantitative outcome data suggest that E1001(1k) + CP scaffolds with rhBMP-2 were biocompatible and promoted bone regeneration in segmental bone defects. Histological examination of the implant sites showed that scaffolds made of E1001(1k) + CP did not elicit adverse cellular or tissue responses throughout test periods up to 8 weeks. Noteworthy is that the incorporation of a very small amount of rhBMP-2 into the scaffolds (as low as 17 μg/defect site) promoted significant bone regeneration compared to scaffolds consisting of E1001(1k) + CP alone. This finding indicates that E1001(1k) + CP may be an effective platform for bone regeneration in a critical size rabbit radius segmental defect model, requiring only a minimal dose of rhBMP-2.

  10. COACH – EXPLORER - MANAGER

    Directory of Open Access Journals (Sweden)

    Đorđe Nićin

    2006-06-01

    Full Text Available Nowdays technologies are characterised by the expert specialists. In training technologies there are also coaches-experts for some sports. Aport from governing training technology, thus he performs manager’s work (planning, programing, accomplishing, controlling, correcting the coach also performs the work of an explorer, because the work of the coach is creative, creating, exploring and it is necessary to include innovation into training process, and innovations are nothing but rehearse of someting new, what is but scientific approach to the training. More the coach succeeds in controlling more factors which influence the sport achievement, he will be more successful. To be able to do all that, the coach must observe, follow, control and correct sportist’s reactions on exercises and loads all the time. The coach demonstrates his activity even through marketing, educational psychological, administrative- technical, nutritional and entire useful social role, so his work is interdisciplinary very complex, important, public, and thus it is a subject to critics. In order to be successful, a modern coach must be an exellent expert-specialist, but also an explorer and manager, and before all a creator of training technology

  11. Coaching Methodsfor SME's

    OpenAIRE

    Kovanen, Anne; Dunn, Katriina

    2010-01-01

    The idea for this thesis was given by the founder and owner of PJHA – Piha ja Hyvinvointi Akseli, Tuula Rahkonen. This company is in the process of changing the business idea and structure, and the owner is hoping to gain some fresh ideas through coaching. The aim of this thesis was to research different coaching methods and further implement a case study on PJHA using an evolutionary coaching approach. The main focus in the thesis was on the case study and different ways to explore the evol...

  12. Understanding and Measuring Coach-Teacher Alliance: A Glimpse Inside the 'Black Box'.

    Science.gov (United States)

    Johnson, Stacy R; Pas, Elise T; Bradshaw, Catherine P

    2016-05-01

    Coaching models are increasingly used in schools to enhance fidelity and effectiveness of evidence-based interventions; yet, little is known about the relationship between the coach and teacher (i.e., coach-teacher alliance), which may indirectly enhance teacher and student outcomes through improved implementation quality. There is also limited research on measures of coach-teacher alliance, further hindering the field from understanding the active components for successful coaching. The current study examined the factor structure and psychometric characteristics of a measure of coach-teacher alliance as reported by both teachers and coaches and explored the extent to which teachers and coaches reliably rate their alliance. Data come from a sample of 147 teachers who received implementation support from one of four coaches; both the teacher and the coach completed an alliance questionnaire. Separate confirmatory factor analyses for each informant revealed four factors (relationship, process, investment, and perceived benefits) as well as an additional coach-rated factor (perceived teacher barriers). A series of analyses, including cross-rater correlations, intraclass correlation coefficients, and Kuder-Richardson reliability estimates suggested that teachers and coaches provide reliable, though not redundant, information about the alliance. Implications for future research and the utilization of the parallel coach-teacher alliance measures to increase the effectiveness of coaching are discussed.

  13. A brief review of dispensing-based rapid prototyping techniques in tissue scaffold fabrication: role of modeling on scaffold properties prediction.

    Science.gov (United States)

    Li, M G; Tian, X Y; Chen, X B

    2009-09-01

    Artificial scaffolds play vital roles in tissue engineering as they provide a supportive environment for cell attachment, proliferation and differentiation during tissue formation. Fabrication of tissue scaffolds is thus of fundamental importance for tissue engineering. Of the variety of scaffold fabrication techniques available, rapid prototyping (RP) methods have attracted a great deal of attention in recent years. This method can improve conventional scaffold fabrication by controlling scaffold microstructure, incorporating cells into scaffolds and regulating cell distribution. All of these contribute towards the ultimate goal of tissue engineering: functional tissues or organs. Dispensing is typically used in different RP techniques to implement the layer-by-layer fabrication process. This article reviews RP methods in tissue scaffold fabrication, with emphasis on dispensing-based techniques, and analyzes the effects of different process factors on fabrication performance, including flow rate, pore size and porosity, and mechanical cell damage that can occur in the bio-manufacturing process.

  14. Preliminary results of implantation in animal model and osteoblast culture evaluation of prototypes of biomimetic multispiked connecting scaffold for noncemented stemless resurfacing hip arthroplasty endoprostheses.

    Science.gov (United States)

    Uklejewski, Ryszard; Rogala, Piotr; Winiecki, Mariusz; Kędzia, Andrzej; Ruszkowski, Piotr

    2013-01-01

    We present the new fixation method for RHA (resurfacing hip arthroplasty) endoprostheses by means of the biomimetic multispiked connecting scaffold (MSC-Scaffold). Such connecting scaffold can generate new type of RHA endoprostheses, that is stemless and fixed entirely without cement. The preprototypes of this MSC-Scaffold were manufactured with modern additive laser additive technology (SLM). The pilot surgical implantations in animal model (two laboratory swine) of MSC-Scaffold preprototypes have showed after two months neither implant loosening, migration, and nor other early complications. From the results of performed histopathological evaluation of the periscaffold spikes bone tissue and 10-day culture of human osteoblasts (NHOst) we can conclude that (1) the scaffolding effect was obtained and (2) to improve the osseointegration of the scaffold spikes, their material surface should be physicochemically modified (e.g., with hydroxyapatite). Some histopathological findings in the periscaffold domain near the MSC-Scaffold spikes bases (fibrous connective tissue and metallic particles near the MSC-Scaffold spikes bases edges) prompt considering the necessity to optimize the design of the MSC-Scaffold in the regions of its interspike space near the spikes bases edges, to provide more room for new bone formation in this region and for indispensable post-processing (glass pearl blasting) after the SLM manufacturing.

  15. Effects of Distance Coaching on Teachers' Use of Pyramid Model Practices: A Pilot Study

    Science.gov (United States)

    Artman-Meeker, Kathleen; Hemmeter, Mary Louise; Snyder, Patricia

    2014-01-01

    The purpose of this pilot study was to compare the effects of 2 professional development approaches on teachers' implementation of the "Pyramid" model, a classroom-wide approach for fostering social-emotional development and addressing challenging behavior. The study had 2 goals: (a) to examine the differential effects of workshop…

  16. Socialization of Coping with Community Violence: Influences of Caregiver Coaching, Modeling, and Family Context

    Science.gov (United States)

    Kliewer, Wendy; Parrish, Katie Adams; Taylor, Kelli W.; Jackson, Kate; Walker, Jean M.; Shivy, Victoria A.

    2006-01-01

    A socialization model of coping with community violence was tested in 101 African American adolescents (55% male, ages 9-13) and their maternal caregivers living in high-violence areas of a mid-sized, southeastern city. Participants completed interviews assessing caregiver coping, family context, and child adjustment. Caregiver-child dyads also…

  17. High growth coaching: helping businesses throughout the UK to meet the challenges of rapid growth

    OpenAIRE

    East Midlands Development Agency

    2005-01-01

    Examines the rationale for business coaching across the English regions, overviews current provision and compares to examples overseas. Recommends a framework to ensure consistency in business coaching delivered within the Business Link model.

  18. Coaching effectiveness: the coach-athlete relationship at its heart.

    Science.gov (United States)

    Jowett, Sophia

    2017-08-01

    Coaching has been often viewed as a context within which coaches operate to largely bring about changes in athlete's performance and wellbeing. One key factor to successful outcomes in coaching is the quality of the relationship between coaches and athletes. In this article, I propose that the coach-athlete relationship is at the heart of coaching. Moreover, the aim is to describe and explain how the quality of the relationship coaches and athletes develop and maintain over the course of their sporting partnership alongside coaches and athletes' knowledge and outcomes, form a system that is capable of defining coaching effectiveness and success. Crown Copyright © 2017. Published by Elsevier Ltd. All rights reserved.

  19. Examining the relationships between challenge and threat cognitive appraisals and coaching behaviours in football coaches.

    Science.gov (United States)

    Dixon, Martin; Turner, Martin J; Gillman, Jamie

    2016-12-26

    Previous research demonstrates that sports coaching is a stressful activity. This article investigates coaches' challenge and threat cognitive appraisals of stressful situations and their impact on coaching behaviour, using Blascovich and Mendes' (2000) biopsychosocial model as a theoretical framework. A cross-sectional correlational design was utilised to examine the relationships between irrational beliefs (Shortened general attitude and belief scale), challenge and threat appraisals (Appraisal of life events scale), and coaching behaviours (Leadership scale for sports) of 105 professional football academy coaches. Findings reveal significant positive associations between challenge appraisals and social support, and between threat appraisals and autocratic behaviour, and a significant negative association between threat appraisals and positive feedback. Results also show that higher irrational beliefs are associated with greater threat, and lesser challenge cognitive appraisals. However, no associations were revealed between irrational beliefs and challenge cognitive appraisals. Additionally, findings demonstrate a positive relationship between age and training and instruction. Results suggest that practitioners should help coaches to appraise stressful situations as a challenge to promote positive coaching behaviours.

  20. Histological evaluation of osteogenesis of 3D-printed poly-lactic-co-glycolic acid (PLGA) scaffolds in a rabbit model

    Energy Technology Data Exchange (ETDEWEB)

    Ge Zigang; Tian Xianfeng; Heng, Boon Chin; Fan, Victor; Yeo Jinfei; Cao Tong, E-mail: omscaot@nus.edu.s [Stem Cell Laboratory, Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, National University of Singapore, 5 Lower Kent Ridge Road, Singapore 119074 (Singapore)

    2009-04-15

    Utilizing a suitable combination of lactide and glycolide in a copolymer would optimize the degradation rate of a scaffold upon implantation in situ. Moreover, 3D printing technology enables customizing the shape of the scaffold to biometric data from CT and MRI scans. A previous in vitro study has shown that novel 3D-printed poly-lactic-co-glycolic acid (PLGA) scaffolds had good biocompatibility and mechanical properties comparable with human cancellous bone, while they could support proliferation and osteogenic differentiation of osteoblasts. Based on the previous study, this study evaluated PLGA scaffolds for bone regeneration within a rabbit model. The scaffolds were implanted at two sites on the same animal, within the periosteum and within bi-cortical bone defects on the iliac crest. Subsequently, the efficacy of bone regeneration within the implanted scaffolds was evaluated at 4, 12 and 24 weeks post-surgery through histological analysis. In both the intra-periosteum and iliac bone defect models, the implanted scaffolds facilitated new bone tissue formation and maturation over the time course of 24 weeks, even though there was initially observed to be little tissue ingrowth within the scaffolds at 4 weeks post-surgery. Hence, the 3D-printed porous PLGA scaffolds investigated in this study displayed good biocompatibility and are osteoconductive in both the intra-periosteum and iliac bone defect models. (communication)

  1. Mathematical Model of Growth Factor Driven Haptotaxis and Proliferation in a Tissue Engineering Scaffold

    KAUST Repository

    Pohlmeyer, J. V.

    2013-01-29

    Motivated by experimental work (Miller et al. in Biomaterials 27(10):2213-2221, 2006, 32(11):2775-2785, 2011) we investigate the effect of growth factor driven haptotaxis and proliferation in a perfusion tissue engineering bioreactor, in which nutrient-rich culture medium is perfused through a 2D porous scaffold impregnated with growth factor and seeded with cells. We model these processes on the timescale of cell proliferation, which typically is of the order of days. While a quantitative representation of these phenomena requires more experimental data than is yet available, qualitative agreement with preliminary experimental studies (Miller et al. in Biomaterials 27(10):2213-2221, 2006) is obtained, and appears promising. The ultimate goal of such modeling is to ascertain initial conditions (growth factor distribution, initial cell seeding, etc.) that will lead to a final desired outcome. © 2013 Society for Mathematical Biology.

  2. Championship Science Olympiad Team: Coaching Influences on Student Performance

    Directory of Open Access Journals (Sweden)

    Lucy KULBAGO

    2016-12-01

    Full Text Available The influence of coaches working with students in grades 6 - 12 in the context of an extra-curricular academic competitive team such as Science Olympiad has not been well studied. The purpose of this study was to examine the influences of a successful head coach in the Science Olympiad program by studying a coach and team that has consistently reached the highest level of success in this program. This qualitative, intrinsic case study investigates one middle school Science Olympiad coach, Drew Kirian, and his team. Drew is one of only two coaches that has guided his team to six consecutive national championships in the Science Olympiad Program, making him a unique coach. Three categories emerged which help explain the components of successful coaching in the Science Olympiad program: structure, relationships, and expectations. These themes are well aligned with the coach-athlete relationship model developed by Mageau & Vallerand. This model may be useful in describing the necessary components of a successful coach in the academic competitive team context.

  3. Behavior Modification in Coaching.

    Science.gov (United States)

    Lynch, Annette Rutt; Stillman, Stephen M.

    1979-01-01

    An example of behavior modification used in athletic coaching is presented. The case study involves a member of a women's basketball team and details the use of behavior modification for both weight reduction and skill improvement. (JMF)

  4. Tredje generations coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2012-01-01

    ”Tredje generations coaching” udfolder et nyt univers for coaching og coachingpsykologi gennem en bearbejdelse af aktuel samfundsforskning, nye læringsteorier og diskurser om det personlige lederskab. ”Tredje generations coaching” er funderet på en samfundsmæssig forståelse af coaching. Coaching er...... blevet så betydningsfuld, fordi samfundet opleves som uoverskueligt og hyperkomplekst. Viden skal nu udformes og anvendes i specifikke kontekster og situationer, og både i privatliv og i det offentlige rum skal vi lære at forhandle os til rette. Coaching kan hjælpe os til at skabe ny viden og mestre...... sociale forhandlinger. Coaching er dermed en slags fødselshjælp til nye refleksioner og perspektiver, en hjælp til selvhjælp og en støtte til ens egen selvdannelsesproces. ”Tredje generations coaching” fremhæver coach og coachee i deres narrativ-samskabende partnerskab. Til forskel fra første generations...

  5. Tredje generations coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2012-01-01

    ”Tredje generations coaching” udfolder et nyt univers for coaching og coachingpsykologi gennem en bearbejdelse af aktuel samfundsforskning, nye læringsteorier og diskurser om det personlige lederskab. ”Tredje generations coaching” er funderet på en samfundsmæssig forståelse af coaching. Coaching er...... blevet så betydningsfuld, fordi samfundet opleves som uoverskueligt og hyperkomplekst. Viden skal nu udformes og anvendes i specifikke kontekster og situationer, og både i privatliv og i det offentlige rum skal vi lære at forhandle os til rette. Coaching kan hjælpe os til at skabe ny viden og mestre...... sociale forhandlinger. Coaching er dermed en slags fødselshjælp til nye refleksioner og perspektiver, en hjælp til selvhjælp og en støtte til ens egen selvdannelsesproces. ”Tredje generations coaching” fremhæver coach og coachee i deres narrativ-samskabende partnerskab. Til forskel fra første generations...

  6. Acceleration of segmental bone regeneration in a rabbit model by strontium-doped calcium polyphosphate scaffold through stimulating VEGF and bFGF secretion from osteoblasts

    Energy Technology Data Exchange (ETDEWEB)

    Gu, Zhipeng [College of Polymer Science and Engineering, Sichuan University, Chengdu 610065 (China); Suzhou Institute of Sichuan University, Suzhou 215123 (China); Zhang, Xu [College of Polymer Science and Engineering, Sichuan University, Chengdu 610065 (China); Li, Li [Department of Oncology, the 452 Hospital of Chinese PLA, Chengdu, Sichuan Province 610021 (China); Wang, Qiguang [College of Polymer Science and Engineering, Sichuan University, Chengdu 610065 (China); Yu, Xixun, E-mail: yuxixun@163.com [College of Polymer Science and Engineering, Sichuan University, Chengdu 610065 (China); Suzhou Institute of Sichuan University, Suzhou 215123 (China); Feng, Ting [The Joint Research Center of West China Second University Hospital of Sichuan University and University of Hong Kong, Chengdu 610041 (China)

    2013-01-01

    The development of suitable bioactive three-dimensional scaffold for the promotion of bone regeneration is critical in bone tissue engineering. The purpose of this study was to investigate in vivo osteogenesis of the porous strontium-doped calcium polyphosphate (SCPP) scaffolds for bone repair, as well as the relationship between osteogenic properties of SCPP scaffolds and the secretion of bFGF and VEGF from osteoblasts stimulated by SCPP. Besides, the advantages of scaffolds seeded with mesenchymal stem cells (MSCs) for bone repair were also studied. Firstly, the bone repair evaluation of scaffolds was performed on a rabbit segmental bony defects model over a period of 16 weeks by histology combined with X-ray microradiography. And then, in order to avoid the influence from the other factors such as hypoxia which emerge in vivo study and affect the secretion of VEGF and bFGF from host cells, human osteoblast-like cells (MG63) were seeded to SCPP, CPP and HA scaffolds in vitro to determine the ability of these scaffolds to stimulate the secretion of angiogenic growth factors (VEGF and bFGF) from MG63 and further explore the reason for the better osteogenic properties of SCPP scaffolds. The histological and X-ray microradiographic results showed that the SCPP scaffolds presented better osteogenic potential than CPP and HA scaffolds, when combined with MSCs, the SCPP scaffolds could further accelerate the bone repair. And the amounts of VEGF measured by ELISA assay in SCPP, CPP and HA groups after cultured for 7 days were about 364.989 pg/mL, 244.035 pg/mL and 232.785 pg/mL, respectively. Accordingly, the amounts of bFGF were about 27.085 pg/mL, 15.727 pg/mL and 8.326 pg/mL. The results revealed that the SCPP scaffolds significantly enhanced the bFGF and VEGF secretion compared with other scaffolds. The results presented in vivo and in vitro study demonstrated that the SCPP could accelerate bone formation through stimulating the secretion of VEGF and bFGF from

  7. Errors Made by Elementary Fourth Grade Students When Modelling Word Problems and the Elimination of Those Errors through Scaffolding

    Science.gov (United States)

    Ulu, Mustafa

    2017-01-01

    This study aims to identify errors made by primary school students when modelling word problems and to eliminate those errors through scaffolding. A 10-question problem-solving achievement test was used in the research. The qualitative and quantitative designs were utilized together. The study group of the quantitative design comprises 248…

  8. Sustained Release of Vancomycin from Polyurethane Scaffolds Inhibits Infection of Bone Wounds in a Rat Femoral Segmental Defect Model

    Science.gov (United States)

    2010-04-09

    a one shot two component reaction between the triisocyanate and the hardener comprising polyester triol, water, TEGOAMIN33 tertiary amine catalyst ...Sustained release of vancomycin from polyurethane scaffolds inhibits infection of bone wounds in a rat femoral segmental defect model Bing Li a,b...2010 Keywords: Polyurethane Vancomycin Sustained release Infection control Rat femoral segmental defect Bone tissue engineering Infection is a common

  9. The Discourse Universe of Coaching

    DEFF Research Database (Denmark)

    Nielsen, Anne Ellerup; Nørreklit, Hanne

    2005-01-01

    management guidebook in order to examine whether it matches the general development of society into high modernity. By means of a critical discourse analysis (Fairclough's model) we examine the rhetorical articulation of the coaching concept in terms of established discourses of management. Our analysis......In recent years, it has been argued that the society in which we live is in a stage of high modernity (Giddens, 1991) generating an explosion of new management models. The purpose of this paper is to analyse the ideological assumptions embedded in the management model described in a Danish...

  10. Taming the wild west of business coaching training: An emerging conceptual framework

    Directory of Open Access Journals (Sweden)

    Jeanette Maritz

    2013-02-01

    Full Text Available Orientation: Although it is believed that business coaching provides a positive intervention in building and supporting management capability, there has been little empirical research into the frameworks that could be applied in business coach training in the South African context.Purpose: The purpose of this study was to explore and describe an emerging conceptual framework for business coach training programmes.Motivation of the study: An empirical void existed in coach training pedagogy with regard to business coach training programmes.Research design, approach and method: A qualitative, design was used to describe and understand the needs of business coaching stakeholders. Data were collected by means of focus groups, individual interviews and naïve sketches from business coach stakeholders such as the purchasers of coaching, coach educators, coachees (n = 30. Data were analysed using a thematic approach.Main findings: The findings were conceptualised and described in terms of the business coach educator as a role model and facilitator of learning, the business coach learner as an adult learner and the educational context. An appreciative environment was recommended. The procedure suggested a progressive broadening of knowledge and skills in an outcomes-based education model. The outcome envisioned a competent business coach who practises both ethically and competently.Practical/managerial implications: A key prerequisite for the future of business coach training programmes should be a coaching curriculum that is embedded in empirical research, with well-defined theoretical frameworks that guide coaching training and practice.Contribution/value-add: An emerging conceptual framework for business coach training programmes was described that could stimulate debate on what should matter in business coach training.

  11. Proposed model for biomineralization of novel nanohydroxyapatite/vertically aligned multiwalled carbon nanotube scaffolds

    Energy Technology Data Exchange (ETDEWEB)

    Brazil, Tayra Rodrigues; Neves, Marcele Florencio das; Marciano, Fernanda Roberta; Lobo, Anderson Oliveira, E-mail: aolobo@univap.br [Universidade do Vale do Paraiba (UniVap), Sao Jose dos Campos, SP (Brazil). Lab. de Nanotecnologia Biomedica; Regiani, Inacio [Instituto Tecnologico de Aeronautica (ITA), Sao Jose dos Campos, SP (Brazil)

    2013-11-01

    For the first time, the growth mechanism of biominerals formed on plate-like nanohydroxyapatite (nHAp) electrodeposited on superhydrophilic vertically aligned multi-walled carbon nanotubes (VAMWCNT-O{sub 2} ) is presented and a model for the specific growth preference is discussed. VAMWCNT-O{sub 2} films were obtained by microwave-assisted chemical vapor deposition method and functionalized by oxygen plasma. nHAp/VAMWCNT-O{sub 2} nanocomposites were fabricated with a direct electrodeposition of the thin nHAp films onto the VAMWCNT-O{sub 2} films. The biomineralized 'scaffolds' were obtained by soaking nHAp/VAMWCNT-O{sub 2} in simulated body fluid for 7, 14 and 21 days. Results show that the carboxyl functional groups directly attached onto VAMWCNT tips after oxygen plasma treatment were essential for the acceleration of the OH- formation and the deposition of plate-like nHAp crystals (author)

  12. Proposed model for biomineralization of novel nanohydroxyapatite/vertically aligned multiwalled carbon nanotube scaffolds

    Directory of Open Access Journals (Sweden)

    Tayra Rodrigues Brazil

    2013-06-01

    Full Text Available For the first time, the growth mechanism of biominerals formed on plate-like nanohydroxyapatite (nHAp electrodeposited on superhydrophilic vertically aligned multi-walled carbon nanotubes (VAMWCNT-O2 is presented and a model for the specific growth preference is discussed. VAMWCNT-O2 films were obtained by microwave-assisted chemical vapor deposition method and funcionalized by oxygen plasma. nHAp/VAMWCNT-O2 nanocomposites were fabricated with a direct electrodeposition of the thin nHAp films onto the VAMWCNT-O2 films. The biomineralized "scaffolds" were obtained by soaking nHAp/VAMWCNT-O2 in simulated body fluid for 7, 14 and 21 days. Results show that the carboxyl functional groups directly attached onto VAMWCNT tips after oxygen plasma treatment were essential for the acceleration of the OH- formation and the deposition of plate-like nHAp crystals.

  13. DAS COACHING FUR DIE KARRIERE

    Directory of Open Access Journals (Sweden)

    Fleseriu Cristina

    2010-12-01

    Full Text Available Coaching means change and transformation. This is the people`s ability to change their behavior, to rediscover and to create a new identity and new plans for the future. The coaching is divided, at this moment, in three categories: business coaching, executive coaching and live skills coaching. If we are talking about career coaching, we can say that this one is present in all its stages: if the person is choosing the first job, if the person is changing the workplace during the career and if the person is retiring.

  14. Leadership coaching experiences of clients with Alexithymia

    Directory of Open Access Journals (Sweden)

    Frans Cilliers

    2012-01-01

    Full Text Available Orientation: Leaders who find it difficult to connect emotionally with colleagues are often seen as incompetent, the idea that they may suffer from alexithymia – an inability to feel – is not taken into account. This coaching model seemed to be not successful in changing this behaviour pattern.Research purpose: The purpose of the research was to describe the coaching experiences of leaders with symptoms of alexithymia and to formulate hypotheses around their leadership experiences.Motivation for the study: Effective leadership is strongly associated with emotional connections with colleagues. Leaders suffering from alexithymia, struggle with making these connections. It was thought that coaching might help them bridge the gap towards building effective relationships.Research design, approach and method: A qualitative research design using case studies was used. Three participants underwent 10 months of systems psychodynamic leadership coaching, including role analysis. Researcher’s field notes and participant essays were discourse analysed. The researcher’s unconscious experiences were included in the interpretations.Main findings: Five themes manifested themselves namely, leaders’ difficult experiences with coaching, the dynamics underlying their normative, experiential and phenomenal roles and the coach’s unconscious experiences affecting the relationship. The research hypothesis referred to the differences between the role parts and the resulting anxiety.Practical/managerial implications: This coaching model did not provide sufficient opportunities for the participating leaders with regard to emotional reactivity and regulation. Contribution/value-add: The research created awareness of how alexithymia amongst leaders manifests in organisations. Unfortunately the coaching was unsuccessful in addressing the emotional task. Other ways need to be explored.

  15. Coaches' Preferences for Continuing Coaching Education in South Africa.

    Science.gov (United States)

    Kubayi, Alliance; Coopoo, Yoga; Morris-Eyton, Heather

    2016-04-01

    The purpose of this study was to examine coaches' preferences for continuing coaching education. The sample consisted of 122 male and 102 female coaches from the Gauteng Province of South Africa who were purposively recruited to participate in this study. The results of this study showed that the coaches wanted to learn more about motivational techniques, advanced instructional drills, advanced first aid, goal setting, character building and conditioning drills. The results further indicated that sport coaches would be more likely to continue their coaching education if they had a desire to coach at a high level, if topics were relevant and if courses were in line with league requirements and were available online. The practical implications of the findings for the development of coaching education programmes in South Africa were discussed.

  16. Predicting cell viability within tissue scaffolds under equiaxial strain: multi-scale finite element model of collagen-cardiomyocytes constructs.

    Science.gov (United States)

    Elsaadany, Mostafa; Yan, Karen Chang; Yildirim-Ayan, Eda

    2017-01-16

    Successful tissue engineering and regenerative therapy necessitate having extensive knowledge about mechanical milieu in engineered tissues and the resident cells. In this study, we have merged two powerful analysis tools, namely finite element analysis and stochastic analysis, to understand the mechanical strain within the tissue scaffold and residing cells and to predict the cell viability upon applying mechanical strains. A continuum-based multi-length scale finite element model (FEM) was created to simulate the physiologically relevant equiaxial strain exposure on cell-embedded tissue scaffold and to calculate strain transferred to the tissue scaffold (macro-scale) and residing cells (micro-scale) upon various equiaxial strains. The data from FEM were used to predict cell viability under various equiaxial strain magnitudes using stochastic damage criterion analysis. The model validation was conducted through mechanically straining the cardiomyocyte-encapsulated collagen constructs using a custom-built mechanical loading platform (EQUicycler). FEM quantified the strain gradients over the radial and longitudinal direction of the scaffolds and the cells residing in different areas of interest. With the use of the experimental viability data, stochastic damage criterion, and the average cellular strains obtained from multi-length scale models, cellular viability was predicted and successfully validated. This methodology can provide a great tool to characterize the mechanical stimulation of bioreactors used in tissue engineering applications in providing quantification of mechanical strain and predicting cellular viability variations due to applied mechanical strain.

  17. Scaffolding Students' Online Critiquing of Expert- and Peer-generated Molecular Models of Chemical Reactions

    Science.gov (United States)

    Chang, Hsin-Yi; Chang, Hsiang-Chi

    2013-08-01

    In this study, we developed online critiquing activities using an open-source computer learning environment. We investigated how well the activities scaffolded students to critique molecular models of chemical reactions made by scientists, peers, and a fictitious peer, and whether the activities enhanced the students' understanding of science models and chemical reactions. The activities were implemented in an eighth-grade class with 28 students in a public junior high school in southern Taiwan. The study employed mixed research methods. Data collected included pre- and post-instructional assessments, post-instructional interviews, and students' electronic written responses and oral discussions during the critiquing activities. The results indicated that these activities guided the students to produce overall quality critiques. Also, the students developed a more sophisticated understanding of chemical reactions and scientific models as a result of the intervention. Design considerations for effective model critiquing activities are discussed based on observational results, including the use of peer-generated artefacts for critiquing to promote motivation and collaboration, coupled with critiques of scientific models to enhance students' epistemological understanding of model purpose and communication.

  18. Composites containing albumin protein or cyanoacrylate adhesives and biodegradable scaffolds: I. Acute wound closure study in a rat model

    Science.gov (United States)

    Hoffman, Grant T.; Soller, Eric C.; Heintzelman, Douglas L.; Duffy, Mark T.; Bloom, Jeffrey N.; Gilmour, Travis M.; Gonnerman, Krista N.; McNally-Heintzelman, Karen M.

    2004-07-01

    Composite adhesives composed of biodegradable scaffolds impregnated with a biological or synthetic adhesive were investigated for use in wound closure as an alternative to using either one of the adhesives alone. Two different scaffold materials were investigated: (i) a synthetic biodegradable material fabricated from poly(L-lactic-co-glycolic acid); and (ii) a biological material, small intestinal sub mucosa, manufactured by Cook BioTech. The biological adhesive was composed of 50%(w/v) bovine serum albumin solder and 0.5mg/ml indocyanine green dye mixed in deionized water, and activated with an 808-nm diode laser. The synthetic adhesive was Ethicon's Dermabond, a 2-octyl-cyanoacrylate. The tensile strength of skin incisions repaired ex vivo in a rat model, by adhesive alone or in combination with a scaffold, as well as the time-to-failure, were measured and compared. The tensile strength of repairs formed using the scaffold-enhanced biological adhesives were on average, 80% stronger than their non-enhanced counterparts, with an accompanying increase in the time-to-failure of the repairs. These results support the theory that a scaffold material with an irregular surface that bridges the wound provides a stronger, more durable and consistent adhesion, due to the distribution of the tensile stress forces over the many micro-adhesions provided by the irregular surface, rather than the one large continuous adhesive contact. This theory is also supported by several previous ex vivo experiments demonstrating enhanced tensile strength of irregular versus smooth scaffold surfaces in identical tissue repairs performed on bovine thoracic aorta, liver, spleen, small intestine and lung tissue.

  19. Cognitive Coaching: A Foundation for Renaissance Schools. Second Edition.

    Science.gov (United States)

    Costa, Arthur L.; Garmston, Robert J.

    This book offers guidelines for understanding the role and power of cognitive coaching to improve teacher effectiveness. Cognitive coaching is a nonjudgmental, developmental, and reflective model derived from a blend of the psychological orientations of cognitive theorists and the interpersonal bonding of humanists. Chapters are organized into…

  20. Teaching Better, Together: Literacy Coaching as Collaborative Professional Development

    Science.gov (United States)

    Mraz, Maryann; Salas, Spencer; Mercado, Leonardo; Dikotla, Masennya

    2016-01-01

    This article draws from the combined experiences of the authors as teacher educators in very different parts of the world to describe the stance literacy coaching represents for English language teaching (ELT) contexts. They begin by defining how literacy coaching is portrayed in the research literature. They continue with a model of four broad…

  1. Reflective Peer Coaching: Crafting Collaborative Self-Assessment in Teaching

    Science.gov (United States)

    Vidmar, Dale J.

    2005-01-01

    Reflective peer coaching is a formative model for improving teaching and learning by examining intentions prior to teaching, then reflecting upon the experience. The goal of reflective peer coaching is to promote self-assessment and collaboration for better teaching and ultimately better learning. There are obvious benefits to colleagues…

  2. Assessment-Based Instructional Coaching Provided to Reading Intervention Teachers

    Science.gov (United States)

    Denton, Carolyn A.; Swanson, Elizabeth A.; Mathes, Patricia G.

    2007-01-01

    The use of student assessment data is a key component of a model of instructional coaching, Student-Focused Coaching (Hasbrouck & Denton, 2005), designed to support student achievement by engaging reading teachers in a collaborative problem-solving process to modify instructional strategies with the goal of enhanced student outcomes. In this…

  3. Telephone-Based Coaching.

    Science.gov (United States)

    Boccio, Mindy; Sanna, Rashel S; Adams, Sara R; Goler, Nancy C; Brown, Susan D; Neugebauer, Romain S; Ferrara, Assiamira; Wiley, Deanne M; Bellamy, David J; Schmittdiel, Julie A

    2017-03-01

    Many Americans continue to smoke, increasing their risk of disease and premature death. Both telephone-based counseling and in-person tobacco cessation classes may improve access for smokers seeking convenient support to quit. Little research has assessed whether such programs are effective in real-world clinical populations. Retrospective cohort study comparing wellness coaching participants with two groups of controls. Kaiser Permanente Northern California, a large integrated health care delivery system. Two hundred forty-one patients who participated in telephonic tobacco cessation coaching from January 1, 2011, to March 31, 2012, and two control groups: propensity-score-matched controls, and controls who participated in a tobacco cessation class during the same period. Wellness coaching participants received an average of two motivational interviewing-based coaching sessions that engaged the patient, evoked their reason to consider quitting, and helped them establish a quit plan. Self-reported quitting of tobacco and fills of tobacco cessation medications within 12 months of follow-up. Logistic regressions adjusting for age, gender, race/ethnicity, and primary language. After adjusting for confounders, tobacco quit rates were higher among coaching participants vs. matched controls (31% vs. 23%, p Coaching participants and class attendees filled tobacco-cessation prescriptions at a higher rate (47% for both) than matched controls (6%, p coaching was as effective as in-person classes and was associated with higher rates of quitting compared to no treatment. The telephonic modality may increase convenience and scalability for health care systems looking to reduce tobacco use and improve health.

  4. Where Are the Women in Women's Sports? Predictors of Female Athletes' Interest in a Coaching Career

    Science.gov (United States)

    Moran-Miller, Kelli; Flores, Lisa Y.

    2011-01-01

    In this study, we used social cognitive career theory (Lent, Brown, & Hackett, 1994) to examine the development of female athletes' career interest in coaching and, specifically, the impact of contextual factors (female coaching role models, working hours, and perceived discrimination) on coaching self-efficacy and outcome expectations.…

  5. Where Are the Women in Women's Sports? Predictors of Female Athletes' Interest in a Coaching Career

    Science.gov (United States)

    Moran-Miller, Kelli; Flores, Lisa Y.

    2011-01-01

    In this study, we used social cognitive career theory (Lent, Brown, & Hackett, 1994) to examine the development of female athletes' career interest in coaching and, specifically, the impact of contextual factors (female coaching role models, working hours, and perceived discrimination) on coaching self-efficacy and outcome expectations.…

  6. Academic Performance and Perception of Learning Following a Peer Coaching Teaching and Assessment Strategy

    Science.gov (United States)

    Moore, Catherine; Westwater-Wood, Sarah; Kerry, Roger

    2016-01-01

    Peer coaching has been associated with positive effects on learning. Specifically, these associations have been explored in complex healthcare professions. A social theory of learning has been proposed as a key component of the utility of peer coaching. Further, within the peer coaching model, assessment has been considered as an important driver.…

  7. Follow-Up of Online Instruction: Effectiveness of Peer Coaching Seminar Course. PRISM Technical Report.

    Science.gov (United States)

    Hornberger, Breann

    This paper presents an evaluation of the Peer Coaching Seminar Course offered through the Peer Coaching Rural Inservice Model (PRISM) project at the North Dakota Center for Persons with Disabilities. This online course was designed to help rural teachers learn both peer coaching and classroom management skills. Twenty first- or second-year…

  8. Elementary School Teacher's Perceptions of the Math Coach Approach to Professional Development

    Science.gov (United States)

    Drust, Janice H.

    2013-01-01

    An increasingly popular way of supporting teachers is with instructional coaching, which involves the teacher working alongside an instructional coach in the classroom and participating weekly in professional development. Due to a challenge issued to educators from government leaders, schools and districts are considering the coaching model as an…

  9. The Perceived Impact of Professional Development on the Development of Instructional Coaches

    Science.gov (United States)

    Steinbacher-Reed, Christina L.

    2012-01-01

    Over the past decade, instructional coaching has quickly asserted itself as one of the leading professional development models of the 21st Century. While there is a growing demand for instructional coaches, some believe that many coaches are not provided with the training they need to be effective in their new role (Brown, Stroh, Fouts, &…

  10. Coaching the Coach: A Program for Development of Faculty Portfolio Coaches.

    Science.gov (United States)

    Kopechek, Jack; Bardales, Cheryl; Lash, A Todd; Walker, Curtis; Pfeil, Sheryl; Ledford, Cynthia H

    2017-01-01

    Faculty coaching is recognized as an essential element for effective use of portfolios in undergraduate medical education, yet best practices for training these coaches are uncertain. New portfolio coaches participated in a multifaceted training program that included orienting modules, a 7.5-hr training workshop featuring analysis of reflective writing, an Observed Structured Teaching Exercise (OSTE), and subsequent longitudinal coaches' meetings for timely task training. Four desired coaching skills were emphasized in the initial training: creating a safe environment, explicitly using performance data, asking questions that elicit reflection, and guiding the student to develop future goals and plans. We collected and analyzed several outcomes: (a) coaches' self-assessment at key intervals, (b) open-ended written responses to three coaching vignettes, (c) video recordings of the OSTE, and (d) subsequent student evaluation of the coach. In an attempt to capture learning from the workshop, both the responses to written vignettes and the video-recorded encounters were coded for presence or absence of the four desired skills. Our portfolio and coaching program was instituted as part of a major undergraduate medical education reform. A new cohort of 25 coaches is enrolled with each matriculating student class, and each coach is assigned to work individually with 8-10 students, forming a coaching relationship that continues over 4 years. Coaches are compensated at 5% full-time equivalent. On coach self-assessment, the majority of coaches reported significant improvement in their perceived ability to assess a student's level of reflection, enhance reflection, use performance data, and guide a student to develop goals and plans. After two semesters, coach perception of improved abilities persisted. Students rated coaches as excellent (82%), reporting that coaches created safe environments (99%), promoted insight (92%), and aided in goal setting (97%). Written responses to

  11. Large strain stimulation promotes extracellular matrix production and stiffness in an elastomeric scaffold model.

    Science.gov (United States)

    D׳Amore, Antonio; Soares, Joao S; Stella, John A; Zhang, Will; Amoroso, Nicholas J; Mayer, John E; Wagner, William R; Sacks, Michael S

    2016-09-01

    Mechanical conditioning of engineered tissue constructs is widely recognized as one of the most relevant methods to enhance tissue accretion and microstructure, leading to improved mechanical behaviors. The understanding of the underlying mechanisms remains rather limited, restricting the development of in silico models of these phenomena, and the translation of engineered tissues into clinical application. In the present study, we examined the role of large strip-biaxial strains (up to 50%) on ECM synthesis by vascular smooth muscle cells (VSMCs) micro-integrated into electrospun polyester urethane urea (PEUU) constructs over the course of 3 weeks. Experimental results indicated that VSMC biosynthetic behavior was quite sensitive to tissue strain maximum level, and that collagen was the primary ECM component synthesized. Moreover, we found that while a 30% peak strain level achieved maximum ECM synthesis rate, further increases in strain level lead to a reduction in ECM biosynthesis. Subsequent mechanical analysis of the formed collagen fiber network was performed by removing the scaffold mechanical responses using a strain-energy based approach, showing that the denovo collagen also demonstrated mechanical behaviors substantially better than previously obtained with small strain training and comparable to mature collagenous tissues. We conclude that the application of large deformations can play a critical role not only in the quantity of ECM synthesis (i.e. the rate of mass production), but also on the modulation of the stiffness of the newly formed ECM constituents. The improved understanding of the process of growth and development of ECM in these mechano-sensitive cell-scaffold systems will lead to more rational design and manufacturing of engineered tissues operating under highly demanding mechanical environments.

  12. Coaching Considerations: FAQs Useful in the Development of Literacy Coaching

    Science.gov (United States)

    Fisher, Douglas

    2012-01-01

    The National Advisory Board for the Literacy Coaching Clearinghouse have identified a number of considerations that it believed needed further discussion as schools, districts, and states embrace literacy coaching. It negotiated and discussed a number of issues surrounding coaching and agreed on 10 key ideas that should be part of the discussions…

  13. Polyurethane foam scaffold as in vitro model for breast cancer bone metastasis.

    Science.gov (United States)

    Angeloni, Valentina; Contessi, Nicola; De Marco, Cinzia; Bertoldi, Serena; Tanzi, Maria Cristina; Daidone, Maria Grazia; Farè, Silvia

    2017-09-18

    Breast cancer (BC) represents the most incident cancer case in women (29%), with high mortality rate. Bone metastasis occurs in 20-50% cases and, despite advances in BC research, the interactions between tumor cells and the metastatic microenvironment are still poorly understood. In vitro 3D models gained great interest in cancer research, thanks to the reproducibility, the 3D spatial cues and associated low costs, compared to in vivo and 2D in vitro models. In this study, we investigated the suitability of a poly-ether-urethane (PU) foam as 3D in vitro model to study the interactions between BC tumor-initiating cells and the bone microenvironment. PU foam open porosity (>70%) appeared suitable to mimic trabecular bone structure. The PU foam showed good mechanical properties under cyclic compression (E=69-109kPa), even if lower than human trabecular bone. The scaffold supported osteoblast SAOS-2 cell line proliferation, with no cytotoxic effects. Human adipose derived stem cells (ADSC) were cultured and differentiated into osteoblast lineage on the PU foam, as shown by alizarin red staining and RT-PCR, thus offering a bone biomimetic microenvironment to the further co-culture with BC derived tumor-initiating cells (MCFS). Tumor aggregates were observed after three weeks of co-culture by e-cadherin staining and SEM; modification in CaP distribution was identified by SEM-EDX and associated to the presence of tumor cells. In conclusion, we demonstrated the suitability of the PU foam to reproduce a bone biomimetic microenvironment, useful for the co-culture of human osteoblasts/BC tumor-initiating cells and to investigate their interaction. 3D in vitro models represent an outstanding alternative in the study of tumor metastases development, compared to traditional 2D in vitro cultures, which oversimplify the 3D tissue microenvironment, and in vivo studies, affected by low reproducibility and ethical issues. Several scaffold-based 3D in vitro models have been proposed

  14. The development of a tissue-engineered tracheobronchial epithelial model using a bilayered collagen-hyaluronate scaffold.

    Science.gov (United States)

    O'Leary, Cian; Cavanagh, Brenton; Unger, Ronald E; Kirkpatrick, C James; O'Dea, Shirley; O'Brien, Fergal J; Cryan, Sally-Ann

    2016-04-01

    Today, chronic respiratory disease is one of the leading causes of mortality globally. Epithelial dysfunction can play a central role in its pathophysiology. The development of physiologically-representative in vitro model systems using tissue-engineered constructs might improve our understanding of epithelial tissue and disease. This study sought to engineer a bilayered collagen-hyaluronate (CHyA-B) scaffold for the development of a physiologically-representative 3D in vitro tracheobronchial epithelial co-culture model. CHyA-B scaffolds were fabricated by integrating a thin film top-layer into a porous sub-layer with lyophilisation. The film layer firmly connected to the sub-layer with delamination occurring at stresses of 12-15 kPa. Crosslinked scaffolds had a compressive modulus of 1.9 kPa and mean pore diameters of 70 μm and 80 μm, depending on the freezing temperature. Histological analysis showed that the Calu-3 bronchial epithelial cell line attached and grew on CHyA-B with adoption of an epithelial monolayer on the film layer. Immunofluorescence and qRT-PCR studies demonstrated that the CHyA-B scaffolds facilitated Calu-3 cell differentiation, with enhanced mucin expression, increased ciliation and the formation of intercellular tight junctions. Co-culture of Calu-3 cells with Wi38 lung fibroblasts was achieved on the scaffold to create a submucosal tissue analogue of the upper respiratory tract, validating CHyA-B as a platform to support co-culture and cellular organisation reminiscent of in vivo tissue architecture. In summary, this study has demonstrated that CHyA-B is a promising tool for the development of novel 3D tracheobronchial co-culture in vitro models with the potential to unravel new pathways in drug discovery and drug delivery.

  15. Peer Coaching: Teachers Supporting Teachers.

    Science.gov (United States)

    Donegan, Mary M.; Ostrosky, Michaelene M.; Fowler, Susan A.

    2000-01-01

    This article describes peer coaching as a method for teacher improvement and offers guidelines for establishing a peer coaching program for early childhood and early childhood special education teachers and related services professionals. It also identifies common problems and possible solutions of peer coaching programs. Sample forms for use in…

  16. The Principal as Formative Coach

    Science.gov (United States)

    Nidus, Gabrielle; Sadder, Maya

    2011-01-01

    Formative coaching, an approach that uses student work as the foundation for mentoring and professional development, can help principals become more effective instructional leaders. In formative coaching, teaches and coaches analyze student work to determine next steps for instruction. This article shows how a principal can use the steps of the…

  17. The Power of Virtual Coaching

    Science.gov (United States)

    Rock, Marcia L.; Zigmond, Naomi P.; Gregg, Madeleine; Gable, Robert A.

    2011-01-01

    Amid budget cuts in U.S. public schools, the spotlight is on how to make less effective teachers more effective--fast. The authors describe virtual coaching--in which a coach interacts electronically with a teacher as a lesson unfolds--as a promising way to help teachers with weak teaching skills. Virtual coaching uses online and mobile technology…

  18. Advancing the Practice of Health Coaching: Differentiation From Wellness Coaching.

    Science.gov (United States)

    Huffman, Melinda H

    2016-09-01

    The increasing demand for health coaches and wellness coaches in worksite health promotion and the marketplace has resulted in a plethora of training programs with wide variations in coaching definitions, content, attributes, and eligibility of those who may train. It is in the interest of public awareness and safety that those in clinical practice take the lead in this discussion and offer a reasonable contrast and comparison focusing on the risks and responsibilities of health coaching in particular. With the endorsement of the American Association of Occupational Health Nurses (AAOHN), the National Society of Health Coaches, whose membership is primarily nurses, discusses the issue and states its position here.

  19. Leder som coach

    OpenAIRE

    Nielsen, John Kurt; Kornerup, Peter

    2006-01-01

    Through the last century there have been great changes in the relation between managers and em-ployees. Now company and employee want development special personal development. Many com-panies choose to make the manager coach for his employees. Whitmore says that the coach should not be partial toward the employee and there may not be any power. According to Foucault this is not possible because the manager has personal interests and decides how the employee shall work so he can not been neut...

  20. Coaching er varm luft!

    DEFF Research Database (Denmark)

    Molly, Asbjørn

    2014-01-01

    ’s use of a word is a necessary skill for the coach to master, in order to introduce a language game in which it becomes possible to ‘disturb’ this use in a constructive manner. This argument is exemplified in a specific coaching conversation with a school leader, whose use of the word recognition...... is explored using questions based on keywords and the mirror technique, and thereby stimulating a change in the coachee’s perception of the word, which gives rise to new possibilities of action....

  1. Coaching under pressure: a study of Olympic coaches.

    Science.gov (United States)

    Olusoga, Peter; Maynard, Ian; Hays, Kate; Butt, Joanne

    2012-01-01

    The Olympic environment has been identified as particularly stressful and unlike any other in terms of the media attention and focus placed on the competition. While the potential negative consequences of stress for coaches and their athletes have been explored, relatively little is known about the factors underpinning successful Olympic coaching performance. We explored elite coaches' perceptions of the factors that enable them to coach in a stressful Olympic environment. Eight coaches from one of Great Britain's most successful Olympic teams (i.e. consistent medal winners in the previous three Olympics) were interviewed. Inductive content analysis indicated that psychological attributes (e.g. emotional control), preparation (e.g. strategic approach), and coping at the event (e.g. team support) were factors that coaches perceived as important for successful Olympic coaching. In addition, coaches offered specific suggestions for training and development. Key themes included coach interaction (e.g. mentoring, formalizing contact) and simulating Olympic pressure. These findings offer suggestions for the education of developing coaches on the pathway to elite sports coaching.

  2. Building successful student-athlete coach relationships: examining coaching practices and commitment to the coach

    OpenAIRE

    Rezania, Davar; Gurney, Robert

    2014-01-01

    In this study we utilized the concept of commitment to explain the impact of coaching practices on student-athlete’s behaviour. We examined the impact of commitment to the coach on the coaching outcome of in-role behaviour, and the influence of coaching practices, of information sharing, training, and encouraging teamwork, on the formation of relationships. We adopted measures from the organizational behaviour literature and surveyed student-athletes at two universities in Canada. The sample ...

  3. Mellemlederes erfaringer med coaching af medarbejdere

    Directory of Open Access Journals (Sweden)

    Ole Michael Spaten

    2012-10-01

    Full Text Available 15 middle managers from a major Danish, nationwide company were trained to coach by two coaching psychologiststhrough theoretical presentations, individual coaching and peer coaching sessions with direct supervision(learning-by-doing, (see Spaten, 2011b. Until now there has been conducted rather limited empiricalresearch on managers who coach their employees. The aim was to investigate the managers challenging andsuccessful experiences when coaching their employees and how these coaching sessions were assessed by theiremployees. The qualitative analysis elicited three main themes: 1 coaching skills, 2 professional and personaldevelopment, and 3 the coaching relationship and power relations. Middle managers’ coaching skills were assessedvery positively by employees across all coaching sessions. One key finding of the study is that the manageras coach, should be very sensitive and empathetic in building the coaching relationship, be aware of the powerrelations and make clear boundaries between the role as leader and the role as coach.

  4. A case study of the Scaffolding Clinical Practicum Model: is it culturally competent for Hispanic nursing students?

    Science.gov (United States)

    Lujan, Josefina; Vasquez, Rebecca

    2010-07-01

    The Institute of Medicine, Office of Minority Health, and the Health Resources and Services Administration have called for culturally competent teaching methods to promote the success of Hispanic nursing students. The article responds to this call by analyzing an innovative clinical practicum teaching method, the Scaffolding Clinical Model, in relation to the cultural competence needs of Hispanic nursing students. The analysis is presented through a case study of a cohort of predominantly (90%) Hispanic baccalaureate nursing students at a university on the United States-Mexico border. The cultural competence of the Scaffolding Clinical Model is analyzed by identifying how well it acknowledges and fosters the application of the four metaparadigms of Hispanic culture--conquest, collectivism, familism, and personalism--for Hispanic students. The metaparadigms are described and specific examples are offered about how the Model promotes application of the metaparadigms to accomplish cultural competence for Hispanic students. Recommendations for educators are also presented.

  5. RELATION OF COACHING BEHAVIOR AND ROLE AMBIGUITY

    Directory of Open Access Journals (Sweden)

    Karamousalidis G.

    2010-08-01

    Full Text Available The purpose of this research was to investigate the relationship between coaching behavior and role ambiguity in defensive responsibilities using interdependent Greek sport teams. Athlete perceptions of role ambiguity (defense were assessed using a questionnaire developed by Beauchamp, Bray, Eys and Carron (2002 andcoaching behavior was assessed using the Coaching Behavior Questionnaire, (Williams, et. al., 2003. The sample consisted of 409 athletes of basketball, volleyball, handball and soccer. Confirmatory factor analysis provided the construct validity of the questionnaires and correlations among the scales confirmed construct validity. The implications of the results are discussed and future research should continue to investigate the multidimensional models of both coaching behavior and role ambiguity in sport settings.

  6. Working with values in coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2016-01-01

    : - Existential coaching - Protreptic coaching as a philosophically inspired coaching approach - Third-generation coaching as a narrative-collaborative practice The overall objective of this chapter is to present and discuss the state of knowledge about values as a central aspect of the coaching process...... to stay on track, value reflections are seen as a fundamental basis for our sensemaking and our fundamental orientation in life. Values are the entrance point to our lived knowledge and practical wisdom. According to Flyvbjerg (2001, p. 4), instrumental rationality needs to be balanced by value...

  7. Coaching: the art of creating exceptional results.

    Science.gov (United States)

    Schack, M L

    1997-01-01

    Functioning as a Coach is a key role for a manager and, in fact, distinguishes the manager as a leader. Coaching focuses on two distinct areas: 1) coaching to orient employees to new situations, and 2) coaching for performance with employees who are showing marginal performance, who are meeting expectations, or who are showing high performance. This article describes coaching for orientation and for performance, identifies coaching skills, and provides a coaching self-assessment.

  8. Mellemlederes erfaringer med coaching af medarbejdere

    OpenAIRE

    Ole Michael Spaten

    2012-01-01

    15 middle managers from a major Danish, nationwide company were trained to coach by two coaching psychologiststhrough theoretical presentations, individual coaching and peer coaching sessions with direct supervision(learning-by-doing, (see Spaten, 2011b)). Until now there has been conducted rather limited empiricalresearch on managers who coach their employees. The aim was to investigate the managers challenging andsuccessful experiences when coaching their employees and how these coaching se...

  9. Structural and functional synthetic model of mono-iron hydrogenase featuring an anthracene scaffold

    Science.gov (United States)

    Seo, Junhyeok; Manes, Taylor A.; Rose, Michael J.

    2017-06-01

    Mono-iron hydrogenase was the third type of hydrogenase discovered. Its Lewis acidic iron(II) centre promotes the heterolytic cleavage of the H-H bond and this non-redox H2 activation distinguishes it from the well-studied dinuclear [FeFe] and [NiFe] hydrogenases. Cleavage of the H-H bond is followed by hydride transfer to the enzyme's organic substrate, H4MPT+, which serves as a CO2 'carrier' in methanogenic pathways. Here we report a scaffold-based synthetic approach by which to model mono-iron hydrogenase using an anthracene framework, which supports a biomimetic fac-C,N,S coordination motif to an iron(II) centre. This arrangement includes the biomimetic and organometallic Fe-C σ bond, which enables bidirectional activity reminiscent of the native enzyme: the complex activates H2 under mild conditions, and catalyses C-H hydride abstraction plus H2 generation from a model substrate. Notably, neither H2 activation nor C-H hydride abstraction was observed in the analogous complex with a pincer-type mer-C,N,S ligation, emphasizing the importance of the fac-C,N,S-iron(II) motif in promoting enzyme-like reactivity.

  10. Acellular bi-layer silk fibroin scaffolds support functional tissue regeneration in a rat model of onlay esophagoplasty.

    Science.gov (United States)

    Algarrahi, Khalid; Franck, Debra; Ghezzi, Chiara E; Cristofaro, Vivian; Yang, Xuehui; Sullivan, Maryrose P; Chung, Yeun Goo; Affas, Saif; Jennings, Russell; Kaplan, David L; Estrada, Carlos R; Mauney, Joshua R

    2015-06-01

    Surgical management of long-gap esophageal defects with autologous gastrointestinal tissues is frequently associated with adverse complications including organ dysmotility, dysphagia, and donor site morbidity. In order to develop alternative graft options, bi-layer silk fibroin (SF) scaffolds were investigated for their potential to support functional tissue regeneration in a rodent model of esophageal repair. Onlay esophagoplasty was performed with SF matrices (N = 40) in adult rats for up to 2 m of implantation. Parallel groups consisted of animals implanted with small intestinal submucosa (SIS) scaffolds (N = 22) or sham controls receiving esophagotomy alone (N = 20). Sham controls exhibited a 100% survival rate while rats implanted with SF and SIS scaffolds displayed respective survival rates of 93% and 91% prior to scheduled euthanasia. Animals in each experimental group were capable of solid food consumption following a 3 d post-op liquid diet and demonstrated similar degrees of weight gain throughout the study period. End-point μ-computed tomography at 2 m post-op revealed no evidence of contrast extravasation, fistulas, strictures, or diverticula in any of the implant groups. Ex vivo tissue bath studies demonstrated that reconstructed esophageal conduits supported by both SF and SIS scaffolds displayed contractile responses to carbachol, KCl and electrical field stimulation while isoproterenol produced tissue relaxation. Histological (Masson's trichrome and hematoxylin and eosin) and immunohistochemical (IHC) evaluations demonstrated both implant groups produced de novo formation of skeletal and smooth muscle bundles positive for contractile protein expression [fast myosin heavy chain (MY32) and α-smooth muscle actin (α-SMA)] within the graft site. However, SF matrices promoted a significant 4-fold increase in MY32+ skeletal muscle and a 2-fold gain in α-SMA+ smooth muscle in comparison to the SIS cohort as determined by histomorphometric

  11. Scaffold-based delivery of autologous mesenchymal stem cells for mandibular distraction osteogenesis: preliminary studies in a porcine model.

    Directory of Open Access Journals (Sweden)

    Zongyang Sun

    Full Text Available PURPOSE: Bone regeneration through distraction osteogenesis (DO is promising but remarkably slow. To accelerate it, autologous mesenchymal stem cells have been directly injected to the distraction site in a few recent studies. Compared to direct injection, a scaffold-based method can provide earlier cell delivery with potentially better controlled cell distribution and retention. This pilot project investigated a scaffold-based cell-delivery approach in a porcine mandibular DO model. MATERIALS AND METHODS: Eleven adolescent domestic pigs were used for two major sets of studies. The in-vitro set established methodologies to: aspirate bone marrow from the tibia; isolate, characterize and expand bone marrow-derived mesenchymal stem cells (BM-MSCs; enhance BM-MSC osteogenic differentiation using FGF-2; and confirm cell integration with a gelatin-based Gelfoam scaffold. The in-vivo set transplanted autologous stem cells into the mandibular distraction sites using Gelfoam scaffolds; completed a standard DO-course and assessed bone regeneration by macroscopic, radiographic and histological methods. Repeated-measure ANOVAs and t-tests were used for statistical analyses. RESULTS: From aspirated bone marrow, multi-potent, heterogeneous BM-MSCs purified from hematopoietic stem cell contamination were obtained. FGF-2 significantly enhanced pig BM-MSC osteogenic differentiation and proliferation, with 5 ng/ml determined as the optimal dosage. Pig BM-MSCs integrated readily with Gelfoam and maintained viability and proliferative ability. After integration with Gelfoam scaffolds, 2.4-5.8×10(7 autologous BM-MSCs (undifferentiated or differentiated were transplanted to each experimental DO site. Among 8 evaluable DO sites included in the final analyses, the experimental DO sites demonstrated less interfragmentary mobility, more advanced gap obliteration, higher mineral content and faster mineral apposition than the control sites, and all transplanted scaffolds

  12. Acellular bi-layer silk fibroin scaffolds support tissue regeneration in a rabbit model of onlay urethroplasty.

    Directory of Open Access Journals (Sweden)

    Yeun Goo Chung

    Full Text Available Acellular scaffolds derived from Bombyx mori silk fibroin were investigated for their ability to support functional tissue regeneration in a rabbit model of urethra repair. A bi-layer silk fibroin matrix was fabricated by a solvent-casting/salt leaching process in combination with silk fibroin film casting to generate porous foams buttressed by homogeneous silk fibroin films. Ventral onlay urethroplasty was performed with silk fibroin grafts (Group 1, N = 4 (Width × Length, 1 × 2 cm(2 in adult male rabbits for 3 m of implantation. Parallel control groups consisted of animals receiving small intestinal submucosa (SIS implants (Group 2, N = 4 or urethrotomy alone (Group 3, N = 3. Animals in all groups exhibited 100% survival prior to scheduled euthanasia and achieved voluntary voiding following 7 d of initial catheterization. Retrograde urethrography of each implant group at 3 m post-op revealed wide urethral calibers and preservation of organ continuity similar to pre-operative and urethrotomy controls with no evidence of contrast extravasation, strictures, fistulas, or stone formation. Histological (hematoxylin and eosin and Masson's trichrome, immunohistochemical, and histomorphometric analyses demonstrated that both silk fibroin and SIS scaffolds promoted similar extents of smooth muscle and epithelial tissue regeneration throughout the original defect sites with prominent contractile protein (α-smooth muscle actin and SM22α and cytokeratin expression, respectively. De novo innervation and vascularization were also evident in all regenerated tissues indicated by synaptophysin-positive neuronal cells and vessels lined with CD31 expressing endothelial cells. Following 3 m post-op, minimal acute inflammatory reactions were elicited by silk fibroin scaffolds characterized by the presence of eosinophil granulocytes while SIS matrices promoted chronic inflammatory responses indicated by mobilization of mononuclear cell infiltrates. The results

  13. Virtual training and coaching of health behavior: example from mindfulness meditation training.

    Science.gov (United States)

    Hudlicka, Eva

    2013-08-01

    Computer-based virtual coaches are increasingly being explored for patient education, counseling, and health behavior training and coaching. The objective of this research was to develop and evaluate a Virtual Mindfulness Coach for training and coaching in mindfulness meditation. The coach was implemented as an embodied conversational character, providing mindfulness training and coaching via mixed initiative, text-based, natural language dialog with the student, and emphasizing affect-adaptive interaction. (The term 'mixed initiative dialog' refers to a human-machine dialog where either can initiate a conversation or a change in the conversation topic.) Findings from a pilot evaluation study indicate that the coach-based training is more effective in helping students establish a regular practice than self-administered training using written and audio materials. The coached group also appeared to be in more advanced stages of change in terms of the transtheoretical model, and have a higher sense of self-efficacy regarding establishment of a regular mindfulness practice. These results suggest that virtual coach-based training of mindfulness is both feasible, and potentially more effective, than a self-administered program. Of particular interest is the identification of the specific coach features that contribute to its effectiveness. Virtual coaches could provide easily accessible and cost-effective customized training for a range of health behaviors. The affect-adaptive aspect of these coaches is particularly relevant for helping patients establish long-term behavior changes. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

  14. Coaching strategies for enhancing practice transformation.

    Science.gov (United States)

    Chase, Sabrina M; Crabtree, Benjamin F; Stewart, Elizabeth E; Nutting, Paul A; Miller, William L; Stange, Kurt C; Jaén, Carlos R

    2015-02-01

    Current research on primary care practice redesign suggests that outside facilitation can be an important source of support for achieving substantial change. To analyse the specific sequence of strategies used by a successful practice facilitator during the American Academy of Family Physicians' (AAFP) National Demonstration Project (NDP). This secondary analysis describes a sequence of strategies used to produce change in family medicine practices attempting to adopt a new model of care. The authors analysed qualitative data generated by one facilitator and six practices by coding facilitator field notes, site visit reports, qualitative summaries, depth interviews and email strings. The facilitator utilized practice member coaching in addition to consulting, negotiating and connecting approaches. Coaching strategies encouraged: (i) expansive, multi-directional, attentive styles of communication; (ii) solving practical problems together; (iii) modelling facilitative leadership and (iv) encouraging an expanded vision of care. Practice members who received consistent coaching reported internal shifts and new ways of conceptualizing work, not just success at implementing model components. They indicated that their facilitator had helped them think and behave in new ways while helping them achieve benchmarks. It was once believed that the transition from traditional models of family medicine practice to new models of care meant implementing new technological components, suggesting that outside facilitators should act as technological and care delivery consultants. However, coaches may be especially useful in helpful in practices undertake substantial changes. © The Author 2014. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  15. Coaching preferences of athletes.

    Science.gov (United States)

    Terry, P C; Howe, B L

    1984-12-01

    The study examined the coaching preferences of 80 male and 80 female athletes, as measured by the Leadership Scale for Sports (Chelladurai and Saleh, 1978, 1980). In addition, it attempted to assess the applicability to sport of the Life-cycle and Path-goal theories of leadership. Comparisons between groups were made on the basis of sex, age, and type of sport. A MANOVA indicated that athletes in independent sports preferred more democratic behaviour (p less than .001) and less autocratic behaviour (p = .028) than athletes in interdependent sports. No differences in coaching preferences were found which could be attributed to the age or sex of the athlete, or the variability of the sports task. These results partially supported the Path-goal theory, but did not support the Life-cycle theory. Athletes of all groups tended to favour coaches who displayed training behaviour and rewarding behaviour "often", democratic behaviour and social support behaviour "occasionally", and autocratic behaviour "seldom". This consistency may be a useful finding for those organizations and institutions interested in preparing coaches.

  16. Task assignment and coaching

    NARCIS (Netherlands)

    Dominguez-Martinez, S.

    2009-01-01

    An important task of a manager is to motivate her subordinates. One way in which a manager can give incentives to junior employees is through the assignment of tasks. How a manager allocates tasks in an organization, provides information to the junior employees about his ability. Without coaching fr

  17. Coaching the Vegetarian Athlete

    Science.gov (United States)

    Mandali, Swarna L.

    2011-01-01

    Good nutrition is important for optimal athletic performance. Adolescent athletes often depend on their coaches for nutritional information on weight management, dietary supplements, and dietary practices. Some dietary practices, such as vegetarianism, have the potential to be harmful to the adolescent athlete if not followed with careful…

  18. Coaching af sygedagpengemodtagere

    DEFF Research Database (Denmark)

    Coop Henriksen, Annemette

    SFI gennemførte i foråret 2008 til foråret 2009 en pilotundersøgelse om coaching. Undersøgelsen var designet som et lodtrækningsforsøg og omfattede 42 kvindelige sygedagpengemodtagere fra Rødovre Jobcenter, der var sygemeldt med psykiske lidelser i form af stress, depression eller udbrændthed eller...... med lidelser i bevægeapparatet. Undersøgelsen er bestilt og finansieret af Rødovre Jobcenter. I rapporten undersøges, om coaching kan bidrage til at bringe sygedagpengemodtagere i arbejde eller tættere på arbejdsmarkedet målt ved, om deltagerne får fx øget motivation, mere selvtillid, øget afklaring...... og færre symptomer på sygdom. Undersøgelsen viser, at gruppen, der har modtaget coaching, oplever en positiv udvikling i forhold til stress, depression og udbrændthed. Gruppen, der modtog coaching, har den tydeligste positive udvikling, men begge grupper har oplevet en helbredsmæssig fremgang i...

  19. Coaching the Vegetarian Athlete

    Science.gov (United States)

    Mandali, Swarna L.

    2011-01-01

    Good nutrition is important for optimal athletic performance. Adolescent athletes often depend on their coaches for nutritional information on weight management, dietary supplements, and dietary practices. Some dietary practices, such as vegetarianism, have the potential to be harmful to the adolescent athlete if not followed with careful…

  20. Predicting the elastic properties of selective laser sintered PCL/β-TCP bone scaffold materials using computational modelling.

    Science.gov (United States)

    Doyle, Heather; Lohfeld, Stefan; McHugh, Peter

    2014-03-01

    This study assesses the ability of finite element (FE) models to capture the mechanical behaviour of sintered orthopaedic scaffold materials. Individual scaffold struts were fabricated from a 50:50 wt% poly-ε-caprolactone (PCL)/β-tricalcium phosphate (β-TCP) blend, using selective laser sintering. The tensile elastic modulus of single struts was determined experimentally. High resolution FE models of single struts were generated from micro-CT scans (28.8 μm resolution) and an effective strut elastic modulus was calculated from tensile loading simulations. Three material assignment methods were employed: (1) homogeneous PCL elastic constants, (2) composite PCL/β-TCP elastic constants based on rule of mixtures, and (3) heterogeneous distribution of micromechanically-determined elastic constants. In comparison with experimental results, the use of homogeneous PCL properties gave a good estimate of strut modulus; however it is not sufficiently representative of the real material as it neglects the β-TCP phase. The rule of mixtures method significantly overestimated strut modulus, while there was no significant difference between strut modulus evaluated using the micromechanically-determined elastic constants and experimentally evaluated strut modulus. These results indicate that the multi-scale approach of linking micromechanical modelling of the sintered scaffold material with macroscale modelling gives an accurate prediction of the mechanical behaviour of the sintered structure.

  1. Modeling the fluid-dynamics and oxygen consumption in a porous scaffold stimulated by cyclic squeeze pressure.

    Science.gov (United States)

    Ferroni, Marco; Giusti, Serena; Nascimento, Diana; Silva, Ana; Boschetti, Federica; Ahluwalia, Arti

    2016-08-01

    The architecture and dynamic physical environment of tissues can be recreated in-vitro by combining 3D porous scaffolds and bioreactors able to apply controlled mechanical stimuli on cells. In such systems, the entity of the stimuli and the distribution of nutrients within the engineered construct depend on the micro-structure of the scaffolds. In this work, we present a new approach for optimizing computational fluid-dynamics (CFD) models for the investigation of fluid-induced forces generated by cyclic squeeze pressure within a porous construct, coupled with oxygen consumption of cardiomyocytes. A 2D axial symmetric macro-scaled model of a squeeze pressure bioreactor chamber was used as starting point for generating time dependent pressure profiles. Subsequently the fluid movement generated by the pressure fields was coupled with a complete 3D micro-scaled model of a porous protein cryogel. Oxygen transport and consumption inside the scaffold was evaluated considering a homogeneous distribution of cardiomyocytes throughout the structure, as confirmed by preliminary cell culture experiments. The results show that a 3D description of the system, coupling a porous geometry and time dependent pressure driven flow with fluid-structure-interaction provides an accurate and meaningful description of the microenvironment in terms of shear stress and oxygen distribution than simple stationary 2D models.

  2. SrO- and MgO-doped microwave sintered 3D printed tricalcium phosphate scaffolds: mechanical properties and in vivo osteogenesis in a rabbit model.

    Science.gov (United States)

    Tarafder, Solaiman; Dernell, William S; Bandyopadhyay, Amit; Bose, Susmita

    2015-04-01

    The presence of interconnected macro pores allows guided tissue regeneration in tissue engineering scaffolds. However, highly porous scaffolds suffer from having poor mechanical strength. Previously, we showed that microwave sintering could successfully be used to improve mechanical strength of macro porous tricalcium phosphate (TCP) scaffolds. This study reports the presence of SrO and MgO as dopants in TCP scaffolds improves mechanical and in vivo biological performance. We have used direct three dimensional printing (3DP) technology for scaffold fabrication. These 3DP scaffolds possessed multiscale porosity, that is, 3D interconnected designed macro pores along with intrinsic micro pores. A significant increase in mechanical strength, between 37 and 41%, was achieved due to SrO and MgO doping in TCP as compared with pure TCP. Maximum compressive strengths of 9.38 ± 1.86 MPa and 12.01 ± 1.56 MPa were achieved by conventional and microwave sintering, respectively, for SrO-MgO-doped 3DP scaffolds with 500 μm designed pores. Histomorphological and histomorphometric analysis revealed a significantly higher osteoid, bone and haversian canal formation induced by the presence of SrO and MgO dopants in 3DP TCP as compared with pure TCP scaffolds when tested in rabbit femoral condyle defect model. Increased osteon and thus enhanced network of blood vessel formation, and osteocalcin expression were observed in the doped TCP scaffolds. Our results show that these 3DP SrO-MgO-doped TCP scaffolds have the potential for early wound healing through accelerated osteogenesis and vasculogenesis.

  3. Aligning Executive Coaching with Strategic Business Goals.

    Science.gov (United States)

    Kumata, Ellen

    2002-01-01

    Explains executive coaching, which is traditionally focused on individual executives, and how it can help align individual development with an organization's strategic goals. Describes a counseling model of identifying an individual's goals, challenges, and development needs and then helping him or her gain insight on how to address these needs.…

  4. Finite difference time domain model of ultrasound propagation in agarose scaffold containing collagen or chondrocytes.

    Science.gov (United States)

    Inkinen, Satu I; Liukkonen, Jukka; Malo, Markus K H; Virén, Tuomas; Jurvelin, Jukka S; Töyräs, Juha

    2016-07-01

    Measurement of ultrasound backscattering is a promising diagnostic technique for arthroscopic evaluation of articular cartilage. However, contribution of collagen and chondrocytes on ultrasound backscattering and speed of sound in cartilage is not fully understood and is experimentally difficult to study. Agarose hydrogels have been used in tissue engineering applications of cartilage. Therefore, the aim of this study was to simulate the propagation of high frequency ultrasound (40 MHz) in agarose scaffolds with varying concentrations of chondrocytes (1 to 32 × 10(6) cells/ml) and collagen (1.56-200 mg/ml) using transversely isotropic two-dimensional finite difference time domain method (FDTD). Backscatter and speed of sound were evaluated from the simulated pulse-echo and through transmission measurements, respectively. Ultrasound backscatter increased with increasing collagen and chondrocyte concentrations. Furthermore, speed of sound increased with increasing collagen concentration. However, this was not observed with increasing chondrocyte concentrations. The present study suggests that the FDTD method may have some applicability in simulations of ultrasound scattering and propagation in constructs containing collagen and chondrocytes. Findings of this study indicate the significant role of collagen and chondrocytes as ultrasound scatterers and can aid in development of modeling approaches for understanding how cartilage architecture affects to the propagation of high frequency ultrasound.

  5. Biophysical characterization and modeling of human Ecdysoneless (ECD protein supports a scaffolding function

    Directory of Open Access Journals (Sweden)

    Nicholas P. Schafer

    2016-03-01

    Full Text Available The human homolog of Drosophila ecdysoneless protein (ECD is a p53 binding protein that stabilizes and enhances p53 functions. Homozygous deletion of mouse Ecd is early embryonic lethal and Ecd deletion delays G1-S cell cycle progression. Importantly, ECD directly interacts with the Rb tumor suppressor and competes with the E2F transcription factor for binding to Rb. Further studies demonstrated ECD is overexpressed in breast and pancreatic cancers and its overexpression correlates with poor patient survival. ECD overexpression together with Ras induces cellular transformation through upregulation of autophagy. Recently we demonstrated that CK2 mediated phosphorylation of ECD and interaction with R2TP complex are important for its cell cycle regulatory function. Considering that ECD is a component of multiprotein complexes and its crystal structure is unknown, we characterized ECD structure by circular dichroism measurements and sequence analysis software. These analyses suggest that the majority of ECD is composed of α-helices. Furthermore, small angle X-ray scattering (SAXS analysis showed that deletion fragments, ECD(1–432 and ECD(1–534, are both well-folded and reveals that the first 400 residues are globular and the next 100 residues are in an extended cylindrical structure. Taking all these results together, we speculate that ECD acts like a structural hub or scaffolding protein in its association with its protein partners. In the future, the hypothetical model presented here for ECD will need to be tested experimentally.

  6. Optimization strategies on the structural modeling of gelatin/chitosan scaffolds to mimic human meniscus tissue

    Energy Technology Data Exchange (ETDEWEB)

    Sarem, Melika [Sports Engineering Group, Faculty of Biomedical Engineering (Center of Excellence), Amirkabir University of Technology, P.O. Box 15875-4413, Tehran (Iran, Islamic Republic of); Institute for Macromolecular Chemistry, University of Freiburg, Hermann Staudinger Haus, Freiburg D-79104 (Germany); Helmholtz Virtual Institute: Multifunctional Biomaterials for Medicine, Freiburg (Germany); Moztarzadeh, Fathollah [Sports Engineering Group, Faculty of Biomedical Engineering (Center of Excellence), Amirkabir University of Technology, P.O. Box 15875-4413, Tehran (Iran, Islamic Republic of); Biomaterials Group, Faculty of Biomedical Engineering (Center of Excellence), Amirkabir University of Technology, P.O. Box 15875-4413, Tehran (Iran, Islamic Republic of); Mozafari, Masoud, E-mail: mozafari.masoud@gmail.com [Sports Engineering Group, Faculty of Biomedical Engineering (Center of Excellence), Amirkabir University of Technology, P.O. Box 15875-4413, Tehran (Iran, Islamic Republic of); Biomaterials Group, Faculty of Biomedical Engineering (Center of Excellence), Amirkabir University of Technology, P.O. Box 15875-4413, Tehran (Iran, Islamic Republic of); Helmerich Advanced Technology Research Center, School of Material Science and Engineering, Oklahoma State University, OK 74106 (United States); Shastri, V. Prasad [Institute for Macromolecular Chemistry, University of Freiburg, Hermann Staudinger Haus, Freiburg D-79104 (Germany); Helmholtz Virtual Institute: Multifunctional Biomaterials for Medicine, Freiburg (Germany)

    2013-12-01

    Meniscus lesions are frequently occurring injuries with poor ability to heal. Typical treatment procedure includes removal of damaged regions, which can lead to sub-optimal knee biomechanics and early onset of osteoarthritis. Some of the drawbacks of current treatment approach present an opportunity for a tissue engineering solution. In this study, gelatin (G)/chitosan (Cs) scaffolds were synthesized via gel casting method and cross-linked with naturally derived cross-linker, genipin, through scaffold cross-linking method. Based on the characteristics of native meniscus tissue microstructure and function, three different layers were chosen to design the macroporous multilayered scaffolds. The multi-layered scaffolds were investigated for their ability to support human-derived meniscus cells by evaluating their morphology and proliferation using MTT assay at various time points. Based on structural, mechanical and cell compatibility considerations, laminated scaffolds composed of G60/Cs40, G80/Cs20 and G40/Cs60 samples, for the first, second and third layers, respectively, could be an appropriate combination for meniscus tissue engineering applications. - Graphical abstract: The wedge shaped multilayer/multiporous G/Cs meniscus scaffolds were mimicked by MR images of anatomical knee meniscus. The layers were chosen as G60/Cs40, G80/Cs20 and G40/Cs60, according to their characteristics similar to meniscus natural tissue, as the first, second and third layers, respectively. - Highlights: • Different gelatin/chitosan systems were chosen to engineer a multilayered scaffold. • The compressive modulus increased gradually by increasing the gelatin concentration. • Further addition of gelatin showed a meaningful decrease in the water uptake degree. • The layers supported cell growth and mimicked the meniscus fibrocartilage structure.

  7. Coaching as a tool of managerial support

    OpenAIRE

    Żukowska, Joanna

    2012-01-01

    The article is the introduce to coaching empirical research. There will be shown the coaching definition, perfect coaching process, all procedures and ways to deal coaching conversation. Moreover the paper will present the skills of asking questions in coaching. Joanna Żukowska

  8. Coaching Discourse: Supporting Teachers' Professional Learning

    Science.gov (United States)

    Heineke, Sally F.

    2013-01-01

    Although coaching is used in many schools to facilitate teachers' professional learning, few studies look closely at coaching discourse. Exploring how coaching facilitates teachers' professional development, this study used tape-recorded coaching sessions and individual post-interviews to examine the one-on-one coaching interactions of 4…

  9. When middel managers are doing employee coaching

    DEFF Research Database (Denmark)

    Spaten, Ole Michael; Flensborg, Winnie

    2013-01-01

    and personal development; and (3) the coaching relationship and power relation. Results: The study found that the manager as coach should be highly sensitive and empathetic in building the coaching relationship, should be aware of the power relation, and should draw clear boundaries between their role...... as leader and their role as coach. The middle managers’ coaching skills were assessed very positively by employees....

  10. Nutritional knowledge of UK coaches.

    Science.gov (United States)

    Cockburn, Emma; Fortune, Alistair; Briggs, Marc; Rumbold, Penny

    2014-04-10

    Athletes obtain nutritional information from their coaches, yet their competency in this area is lacking. Currently, no research exists in the UK which has a different coach education system to many other countries. Therefore, the aim of this study was to evaluate the sports nutrition knowledge of UK coaching certificate (UKCC) level 2 and 3, hockey and netball qualified coaches. All coaches (n = 163) completed a sports nutrition questionnaire to identify: (a) if they provided nutritional advice; (b) their level of sport nutrition knowledge; and (c) factors that may have contributed to their level of knowledge. Over half the coaches provided advice to their athletes (n = 93, 57.1%), even though they were not competent to do so. Coaches responded correctly to 60.3 ± 10.5% of all knowledge questions with no differences between those providing advice and those who did not (p > 0.05). Those coaches who had undertaken formal nutrition training achieved higher scores than those who had not (p sports coaches would benefit from continued professional development in sports nutrition to enhance their coaching practice.

  11. Nutritional Knowledge of UK Coaches

    Directory of Open Access Journals (Sweden)

    Emma Cockburn

    2014-04-01

    Full Text Available Athletes obtain nutritional information from their coaches, yet their competency in this area is lacking. Currently, no research exists in the UK which has a different coach education system to many other countries. Therefore, the aim of this study was to evaluate the sports nutrition knowledge of UK coaching certificate (UKCC level 2 and 3, hockey and netball qualified coaches. All coaches (n = 163 completed a sports nutrition questionnaire to identify: (a if they provided nutritional advice; (b their level of sport nutrition knowledge; and (c factors that may have contributed to their level of knowledge. Over half the coaches provided advice to their athletes (n = 93, 57.1%, even though they were not competent to do so. Coaches responded correctly to 60.3 ± 10.5% of all knowledge questions with no differences between those providing advice and those who did not (p > 0.05. Those coaches who had undertaken formal nutrition training achieved higher scores than those who had not (p < 0.05. In conclusion, UK sports coaches would benefit from continued professional development in sports nutrition to enhance their coaching practice.

  12. Semiotic scaffolding

    DEFF Research Database (Denmark)

    Hoffmeyer, Jesper

    2015-01-01

    Life processes at all levels (from the genetic to the behavioral) are coordinated by semiotic interactions between cells, tissues, membranes, organs, or individuals and tuned through evolution to stabilize important functions. A stabilizing dynamics based on a system of semiotic scaffoldings...... implies that genes do not control the life of organisms, they merely scaffold it. The nature-nurture dynamics is thus far more complex and open than is often claimed. Contrary to physically based interactions, semiotic interactions do not depend on any direct causal connection between the sign vehicle...... semiotic scaffolding is not, of course, exclusive for phylogenetic and ontogenetic development, it is also an important dynamical element in cultural evolution....

  13. Computational modelling of ovine critical-sized tibial defects with implanted scaffolds and prediction of the safety of fixator removal.

    Science.gov (United States)

    Doyle, Heather; Lohfeld, Stefan; Dürselen, Lutz; McHugh, Peter

    2015-04-01

    Computational model geometries of tibial defects with two types of implanted tissue engineering scaffolds, β-tricalcium phosphate (β-TCP) and poly-ε-caprolactone (PCL)/β-TCP, are constructed from µ-CT scan images of the real in vivo defects. Simulations of each defect under four-point bending and under simulated in vivo axial compressive loading are performed. The mechanical stability of each defect is analysed using stress distribution analysis. The results of this analysis highlights the influence of callus volume, and both scaffold volume and stiffness, on the load-bearing abilities of these defects. Clinically-used image-based methods to predict the safety of removing external fixation are evaluated for each defect. Comparison of these measures with the results of computational analyses indicates that care must be taken in the interpretation of these measures.

  14. Modeling BCR-ABL and MLL-AF9 leukemia in a human bone marrow-like scaffold-based xenograft model

    NARCIS (Netherlands)

    Sontakke, P.; Carretta, M.; Jaques, J.; Brouwers-Vos, A. Z.; Lubbers-Aalders, L.; Yuan, H.; de Bruijn, J. D.; Martens, A. C. M.; Vellenga, E.; Groen, R. W. J.; Schuringa, J. J.

    2016-01-01

    Although NOD-SCID IL2R gamma(-/-) (NSG) xenograft mice are currently the most frequently used model to study human leukemia in vivo, the absence of a human niche severely hampers faithful recapitulation of the disease. We used NSG mice in which ceramic scaffolds seeded with human mesenchymal stromal

  15. Coaching af sygedagpengemodtagere

    DEFF Research Database (Denmark)

    Coop Henriksen, Annemette

    SFI gennemførte i foråret 2008 til foråret 2009 en pilotundersøgelse om coaching. Undersøgelsen var designet som et lodtrækningsforsøg og omfattede 42 kvindelige sygedagpengemodtagere fra Rødovre Jobcenter, der var sygemeldt med psykiske lidelser i form af stress, depression eller udbrændthed eller...... med lidelser i bevægeapparatet. Undersøgelsen er bestilt og finansieret af Rødovre Jobcenter. I rapporten undersøges, om coaching kan bidrage til at bringe sygedagpengemodtagere i arbejde eller tættere på arbejdsmarkedet målt ved, om deltagerne får fx øget motivation, mere selvtillid, øget afklaring...

  16. Antecedents of perceived coach interpersonal behaviors: the coaching environment and coach psychological well- and ill-being.

    Science.gov (United States)

    Stebbings, Juliette; Taylor, Ian M; Spray, Christopher M; Ntoumanis, Nikos

    2012-08-01

    Embedded in the self-determination theory (Deci & Ryan, 2000) framework, we obtained self-report data from 418 paid and voluntary coaches from a variety of sports and competitive levels with the aim of exploring potential antecedents of coaches' perceived autonomy supportive and controlling behaviors. Controlling for socially desirable responses, structural equation modeling revealed that greater job security and opportunities for professional development, and lower work-life conflict were associated with psychological need satisfaction, which, in turn, was related to an adaptive process of psychological well-being and perceived autonomy support toward athletes. In contrast, higher work-life conflict and fewer opportunities for development were associated with a distinct maladaptive process of thwarted psychological needs, psychological ill-being, and perceived controlling interpersonal behavior. The results highlight how the coaching context may impact upon coaches' psychological health and their interpersonal behavior toward athletes. Moreover, evidence is provided for the independence of adaptive and maladaptive processes within the self-determination theory paradigm.

  17. Executive Coaching Practices in the Adult Workplace

    Science.gov (United States)

    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.

  18. Mentoring & coaching: It perspective

    OpenAIRE

    Colomo-Palacios, Ricardo; Casado-Lumbreras, Cristina

    2006-01-01

    The development of the intellectual capital of the corporations nowadays represents one of the most significant challenges for the managers of and one of the most fertile fields for the enterpreneurial innovation. The present article shows a vision over two of the techniques of formation of people with greater impact at the present time: the Mentoring and the Coaching. Both terms have been object of debates regarding to their applications, existing, in spite of their notoriety, great confusio...

  19. Elements of an Art - Agile Coaching

    Science.gov (United States)

    Lundh, Erik

    This tutorial gives you a lead on becoming or redefining yourself as an Agile Coach. Introduction to elements and dimensions of state-of-the-art Agile Coaching. How to position the agile coach to be effective in a larger setting. Making the agile transition - from a single team to thousands of people. How to support multiple teams as a coach. How to build a coaches network in your company. Challenges when the agile coach is a consultant and the organization is large.

  20. A Developmental Model of Reading Acquisition Based upon Early Scaffolding Errors and Subsequent Vowel Inferences

    Science.gov (United States)

    Savage, Robert; Stuart, Morag

    2006-01-01

    This paper investigates the processes that predict reading acquisition. Associations between (a) scaffolding errors (e.g., "torn" misread as "town" or "tarn"), other reading errors, and later reading and (b) vowel and rime inferences and later reading were explored. To assess both of these issues, 50 6-year-old children were shown a number of CVC…

  1. Integrating Scaffolding Strategies into Technology-Enhanced Assessments of English Learners: Task Types and Measurement Models

    Science.gov (United States)

    Wolf, Mikyung Kim; Guzman-Orth, Danielle; Lopez, Alexis; Castellano, Katherine; Himelfarb, Igor; Tsutagawa, Fred S.

    2016-01-01

    This article investigates ways to improve the assessment of English learner students' English language proficiency given the current movement of creating next-generation English language proficiency assessments in the Common Core era. In particular, this article discusses the integration of scaffolding strategies, which are prevalently utilized as…

  2. Integrating Scaffolding Strategies into Technology-Enhanced Assessments of English Learners: Task Types and Measurement Models

    Science.gov (United States)

    Wolf, Mikyung Kim; Guzman-Orth, Danielle; Lopez, Alexis; Castellano, Katherine; Himelfarb, Igor; Tsutagawa, Fred S.

    2016-01-01

    This article investigates ways to improve the assessment of English learner students' English language proficiency given the current movement of creating next-generation English language proficiency assessments in the Common Core era. In particular, this article discusses the integration of scaffolding strategies, which are prevalently utilized as…

  3. A Design Model of Distributed Scaffolding for Inquiry-Based Learning

    Science.gov (United States)

    Hsu, Ying-Shao; Lai, Ting-Ling; Hsu, Wei-Hsiu

    2015-01-01

    This study presents a series of three experiments that focus on how distributed scaffolding influences learners' conceptual understanding and reasoning from combined levels of triangulation, at the interactive level (discourses within a focus group) and the collective level (class). Three inquiry lessons on plate tectonics (LPT) were designed,…

  4. Coaching: A Philosophy, Concept, Tool and Skill

    OpenAIRE

    John BAX; Magdalena NEGRUTIU; CALOTĂ Traian-Ovidiu

    2011-01-01

    Nowadays you will come across the word ‘coaching’ anytime and anywhere in the world. It is used in education, but also in business. It is used in big organizations, but also in small ones. It is used in non-profit organizations, but also in profit ones. It is used on an executive level, but also on the work floor. You come across various types of coaching, like personal coaching, buddy coaching, peer coaching, executive coaching, board coaching, business coaching, performance coaching, etc. B...

  5. Mellemlederes erfaringer med coaching af medarbejdere

    DEFF Research Database (Denmark)

    Spaten, Ole Michael

    2012-01-01

    rather limited empirical research on managers who coach their employees. The aim was to investigate the managers challenging and successful experiences when coaching their employees and how these coaching sessions were assessed by their employees. The qualitative analysis elicited three main themes: 1......) coaching skills, 2) professional and personal development, and 3) the coaching relationship and power relations. Middle managers’ coaching skills were assessed very positively by employees across all coaching sessions. One key finding of the study is that the manager as coach, should be very sensitive...

  6. Coaching: A Philosophy, Concept, Tool and Skill

    OpenAIRE

    John BAX; Magdalena NEGRUTIU; Traian-Ovidiu CALOTĂ

    2011-01-01

    Nowadays you will come across the word ‘coaching’ anytime and anywhere in the world. It is used in education, but also in business. It is used in big organizations, but also in small ones. It is used in non-profit organizations, but also in profit ones. It is used on an executive level, but also on the work floor. You come across various types of coaching, like personal coaching, buddy coaching, peer coaching, executive coaching, board coaching, business coaching, performance coaching, etc. B...

  7. Scaffolding Learning by Modelling: The Effects of Partially Worked-out Models

    Science.gov (United States)

    Mulder, Yvonne G.; Bollen, Lars; de Jong, Ton; Lazonder, Ard W.

    2016-01-01

    Creating executable computer models is a potentially powerful approach to science learning. Learning by modelling is also challenging because students can easily get overwhelmed by the inherent complexities of the task. This study investigated whether offering partially worked-out models can facilitate students' modelling practices and promote…

  8. How Coaching Forensics Made Me a Better Writing Coach

    Science.gov (United States)

    Williamson, Lynette

    2007-01-01

    The author, a high school teacher and forensics coach, describes ways to teach writing--including on-demand essays--that draw on successful practices she developed in coaching. Students learn the importance of using personal conviction and qualified thesis statements to build arguments, as well as learning "The Debater Four-Step," an effective…

  9. How Coaching Forensics Made Me a Better Writing Coach

    Science.gov (United States)

    Williamson, Lynette

    2007-01-01

    The author, a high school teacher and forensics coach, describes ways to teach writing--including on-demand essays--that draw on successful practices she developed in coaching. Students learn the importance of using personal conviction and qualified thesis statements to build arguments, as well as learning "The Debater Four-Step," an effective…

  10. L’essenza del coaching. [The essence of coaching].

    Directory of Open Access Journals (Sweden)

    Nicola Luigi Bragazzi

    2013-03-01

    Full Text Available Both Alessandro Pannitti and Franco Rossi have a solid and reputed experience of several years in the field of Coaching, and in this book they have provided the readers with their expert, authoritative overview on the different coaching techniques...

  11. Scaffolding learning by modelling: The effects of partially worked-out models

    NARCIS (Netherlands)

    Mulder, Y.G.; Bollen, Lars; de Jong, Anthonius J.M.; Lazonder, Adrianus W.

    2016-01-01

    Creating executable computer models is a potentially powerful approach to science learning. Learning by modelling is also challenging because students can easily get overwhelmed by the inherent complexities of the task. This study investigated whether offering partially worked-out models can facilit

  12. Scaffolded biology.

    Science.gov (United States)

    Minelli, Alessandro

    2016-09-01

    Descriptions and interpretations of the natural world are dominated by dichotomies such as organism vs. environment, nature vs. nurture, genetic vs. epigenetic, but in the last couple of decades strong dissatisfaction with those partitions has been repeatedly voiced and a number of alternative perspectives have been suggested, from perspectives such as Dawkins' extended phenotype, Turner's extended organism, Oyama's Developmental Systems Theory and Odling-Smee's niche construction theory. Last in time is the description of biological phenomena in terms of hybrids between an organism (scaffolded system) and a living or non-living scaffold, forming unit systems to study processes such as reproduction and development. As scaffold, eventually, we can define any resource used by the biological system, especially in development and reproduction, without incorporating it as happens in the case of resources fueling metabolism. Addressing biological systems as functionally scaffolded systems may help pointing to functional relationships that can impart temporal marking to the developmental process and thus explain its irreversibility; revisiting the boundary between development and metabolism and also regeneration phenomena, by suggesting a conceptual framework within which to investigate phenomena of regular hypermorphic regeneration such as characteristic of deer antlers; fixing a periodization of development in terms of the times at which a scaffolding relationship begins or is terminated; and promoting plant galls to legitimate study objects of developmental biology.

  13. Mathematical modeling of degradation for bulk-erosive polymers: applications in tissue engineering scaffolds and drug delivery systems.

    Science.gov (United States)

    Chen, Yuhang; Zhou, Shiwei; Li, Qing

    2011-03-01

    The degradation of polymeric biomaterials, which are widely exploited in tissue engineering and drug delivery systems, has drawn significant attention in recent years. This paper aims to develop a mathematical model that combines stochastic hydrolysis and mass transport to simulate the polymeric degradation and erosion process. The hydrolysis reaction is modeled in a discrete fashion by a fundamental stochastic process and an additional autocatalytic effect induced by the local carboxylic acid concentration in terms of the continuous diffusion equation. Illustrative examples of microparticles and tissue scaffolds demonstrate the applicability of the model. It is found that diffusive transport plays a critical role in determining the degradation pathway, whilst autocatalysis makes the degradation size dependent. The modeling results show good agreement with experimental data in the literature, in which the hydrolysis rate, polymer architecture and matrix size actually work together to determine the characteristics of the degradation and erosion processes of bulk-erosive polymer devices. The proposed degradation model exhibits great potential for the design optimization of drug carriers and tissue scaffolds.

  14. Coaching: A Philosophy, Concept, Tool and Skill

    Directory of Open Access Journals (Sweden)

    John BAX

    2011-12-01

    Full Text Available Nowadays you will come across the word ‘coaching’ anytime and anywhere in the world. It is used in education, but also in business. It is used in big organizations, but also in small ones. It is used in non-profit organizations, but also in profit ones. It is used on an executive level, but also on the work floor. You come across various types of coaching, like personal coaching, buddy coaching, peer coaching, executive coaching, board coaching, business coaching, performance coaching, etc.But what exactly is coaching? Is it a philosophy, a concept, a tool or a skill? When is it useful, and when not. And how can coaching be applied in everyday life? In this article I will give a short summary of important elements of coaching.

  15. Validation of an in vitro 3D bone culture model with perfused and mechanically stressed ceramic scaffold

    Directory of Open Access Journals (Sweden)

    G Bouet

    2015-05-01

    Full Text Available An engineered three dimensional (3D in vitro cell culture system was designed with the goal of inducing and controlling in vitro osteogenesis in a reproducible manner under conditions more similar to the in vivo bone microenvironment than traditional two-dimensional (2D models. This bioreactor allows efficient mechanical loading and perfusion of an original cubic calcium phosphate bioceramic of highly controlled composition and structure. This bioceramic comprises an internal portion containing homogeneously interconnected macropores surrounded by a dense layer, which minimises fluid flow bypass around the scaffold. This dense and flat layer permits the application of a homogeneous loading on the bioceramic while also enhancing its mechanical strength. Numerical modelling of constraints shows that the system provides direct mechanical stimulation of cells within the scaffold. Experimental results establish that under perfusion at a steady flow of 2 µL/min, corresponding to 3 ≤ Medium velocity ≤ 23 µm/s, mouse calvarial cells grow and differentiate as osteoblasts in a reproducible manner, and lay down a mineralised matrix. Moreover, cells respond to mechanical loading by increasing C-fos expression, which demonstrates the effective mechanical stimulation of the culture within the scaffold. In summary, we provide a “proof-of-concept” for osteoblastic cell culture in a controlled 3D culture system under perfusion and mechanical loading. This model will be a tool to analyse bone cell functions in vivo, and will provide a bench testing system for the clinical assessment of bioactive bone-targeting molecules under load.

  16. Do science coaches promote inquiry-based instruction in the elementary science classroom?

    Science.gov (United States)

    Wicker, Rosemary Knight

    The South Carolina Mathematics and Science Coaching Initiative established a school-based science coaching model that was effective in improving instruction by increasing the level of inquiry-based instruction in elementary science classrooms. Classroom learning environment data from both teacher groups indicated considerable differences in the quality of inquiry instruction for those classrooms of teachers supported by a science coach. All essential features of inquiry were demonstrated more frequently and at a higher level of open-ended inquiry in classrooms with the support of a science coach than were demonstrated in classrooms without a science coach. However, from teacher observations and interviews, it was determined that elementary schoolteacher practice of having students evaluate conclusions and connect them to current scientific knowledge was often neglected. Teachers with support of a science coach reported changes in inquiry-based instruction that were statistically significant. This mixed ethnographic study also suggested that the Mathematics and Science Coaching Initiative Theory of Action for Instructional Improvement was an effective model when examining the work of science coaches. All components of effective school infrastructure were positively impacted by a variety of science coaching strategies intended to promote inquiry. Professional development for competent teachers, implementation of researched-based curriculum, and instructional materials support were areas highly impacted by the work of science coaches.

  17. Coaches Guide to Sport Administration.

    Science.gov (United States)

    Leith, Larry M.

    This guide for athletic coaches offers a practical approach to the administrative functions of organizing, planning, leading, and controlling. Included are chapters on coaching administration, fund raising, organizing competitions, and designing effective budgets and controls. The guide addresses the following topics: (1) the categories of…

  18. Coaching for Tests. ERIC Digest.

    Science.gov (United States)

    Wildemuth, Barbara

    The term "coaching" applies to a variety of types of test preparation programs which vary in length, instructional method, and content. Most research on the effectiveness of coaching has examined the Scholastic Aptitude Test (SAT), a measure of academic abilities used to predict college performance. This ERIC Digest reviews studies of…

  19. Coaches Guide to Sport Administration.

    Science.gov (United States)

    Leith, Larry M.

    This guide for athletic coaches offers a practical approach to the administrative functions of organizing, planning, leading, and controlling. Included are chapters on coaching administration, fund raising, organizing competitions, and designing effective budgets and controls. The guide addresses the following topics: (1) the categories of…

  20. Instructional Coaching and Emotional Intelligence

    Science.gov (United States)

    Avant, Rue Celia

    2012-01-01

    School site-based instructional coaching is a form of job-embedded professional development for teachers and an element of school reform. Coaches are hired based upon their pedagogical knowledge, content expertise, prior teaching experience, and "people skills." They are adept at handling a variety of social interactions at school sites,…

  1. Embracing Coaching as Professional Development

    Science.gov (United States)

    Driscoll, Mark J.

    2008-01-01

    Because the author and his colleagues at the Center for Leadership and Learning Communities believe that instructional coaching is one of the most exciting developments in education in a long time, they have examined the questions this new strategy has raised for education leaders: Should coaching replace some traditional forms of teacher…

  2. Mechano growth factor (MGF) and transforming growth factor (TGF)-β3 functionalized silk scaffolds enhance articular hyaline cartilage regeneration in rabbit model.

    Science.gov (United States)

    Luo, Ziwei; Jiang, Li; Xu, Yan; Li, Haibin; Xu, Wei; Wu, Shuangchi; Wang, Yuanliang; Tang, Zhenyu; Lv, Yonggang; Yang, Li

    2015-06-01

    Damaged cartilage has poor self-healing ability and usually progresses to scar or fibrocartilaginous tissue, and finally degenerates to osteoarthritis (OA). Here we demonstrated that one of alternative isoforms of IGF-1, mechano growth factor (MGF) acted synergistically with transforming growth factor β3 (TGF-β3) embedded in silk fibroin scaffolds to induce chemotactic homing and chondrogenic differentiation of mesenchymal stem cells (MSCs). Combination of MGF and TGF-β3 significantly increased cell recruitment up to 1.8 times and 2 times higher than TGF-β3 did in vitro and in vivo. Moreover, MGF increased Collagen II and aggrecan secretion of TGF-β3 induced hMSCs chondrogenesis, but decreased Collagen I in vitro. Silk fibroin (SF) scaffolds have been widely used for tissue engineering, and we showed that methanol treated pured SF scaffolds were porous, similar to compressive module of native cartilage, slow degradation rate and excellent drug released curves. At 7 days after subcutaneous implantation, TGF-β3 and MGF functionalized silk fibroin scaffolds (STM) recruited more CD29+/CD44+cells (Pcartilage-like extracellular matrix and less fibrillar collagen were detected in STM scaffolds than that in TGF-β3 modified scaffolds (ST) at 2 months after subcutaneous implantation. When implanted into articular joints in a rabbit osteochondral defect model, STM scaffolds showed the best integration into host tissues, similar architecture and collagen organization to native hyaline cartilage, as evidenced by immunostaining of aggrecan, collagen II and collagen I, as well as Safranin O and Masson's trichrome staining, and histological evalution based on the modified O'Driscoll histological scoring system (Pcartilage regeneration. This study demonstrated that TGF-β3 and MGF functionalized silk fibroin scaffolds enhanced endogenous stem cell recruitment and facilitated in situ articular cartilage regeneration, thus providing a novel strategy for cartilage repair

  3. Between coaching and social counselling

    Directory of Open Access Journals (Sweden)

    Toni Vrana

    2012-03-01

    The basic difference between coaching and social counselling lies in a different interpretation of the client' starting situation. Social counselling understands the client' starting situation as problematic and attempts to normalize it, while coaching understands it as normal and attempts to develop it. The key similarity of the two approaches is encour- agement of the clients' own initiative. Coaching needs to be investigated within the field of developmental conceptions, since its focus on results supports, unintentionally, the dominant developmental paradigm. Focusing on solutions in coaching is questionable also within an organization, where its interests may channel the course of clients' search for their own solutions. The counselling doctrine of coaching can gain valuable insights by a reassessment of the concepts of development and normality, a domain in which it is likely to encounter social counselling.

  4. Geometric and mechanical properties evaluation of scaffolds for bone tissue applications designing by a reaction-diffusion models and manufactured with a material jetting system

    Directory of Open Access Journals (Sweden)

    Marco A. Velasco

    2016-10-01

    Full Text Available Scaffolds are essential in bone tissue engineering, as they provide support to cells and growth factors necessary to regenerate tissue. In addition, they meet the mechanical function of the bone while it regenerates. Currently, the multiple methods for designing and manufacturing scaffolds are based on regular structures from a unit cell that repeats in a given domain. However, these methods do not resemble the actual structure of the trabecular bone which may work against osseous tissue regeneration. To explore the design of porous structures with similar mechanical properties to native bone, a geometric generation scheme from a reaction-diffusion model and its manufacturing via a material jetting system is proposed. This article presents the methodology used, the geometric characteristics and the modulus of elasticity of the scaffolds designed and manufactured. The method proposed shows its potential to generate structures that allow to control the basic scaffold properties for bone tissue engineering such as the width of the channels and porosity. The mechanical properties of our scaffolds are similar to trabecular tissue present in vertebrae and tibia bones. Tests on the manufactured scaffolds show that it is necessary to consider the orientation of the object relative to the printing system because the channel geometry, mechanical properties and roughness are heavily influenced by the position of the surface analyzed with respect to the printing axis. A possible line for future work may be the establishment of a set of guidelines to consider the effects of manufacturing processes in designing stages.

  5. In Pursuit of Becoming a Senior Coach: The Learning Culture for Australian Football League Coaches

    Science.gov (United States)

    Mallett, Clifford J.; Rossi, Tony; Rynne, Steven B.; Tinning, Richard

    2016-01-01

    Background and Purpose: Given the turbulent and highly contested environment in which professional coaches work, a prime concern to coach developers is how coaches learn their craft. Understanding the learning and development of senior coaches (SCs) and assistant coaches (ACs) in the Australian Football League (AFL--the peak organisation for…

  6. In Pursuit of Becoming a Senior Coach: The Learning Culture for Australian Football League Coaches

    Science.gov (United States)

    Mallett, Clifford J.; Rossi, Tony; Rynne, Steven B.; Tinning, Richard

    2016-01-01

    Background and Purpose: Given the turbulent and highly contested environment in which professional coaches work, a prime concern to coach developers is how coaches learn their craft. Understanding the learning and development of senior coaches (SCs) and assistant coaches (ACs) in the Australian Football League (AFL--the peak organisation for…

  7. 3 Steps to Great Coaching: A Simple but Powerful Instructional Coaching Cycle Nets Results

    Science.gov (United States)

    Knight, Jim; Elford, Marti; Hock, Michael; Dunekack, Devona; Bradley, Barbara; Deshler, Donald D.; Knight, David

    2015-01-01

    In this article the authors describe a three-step instructional coaching cycle that can helps coaches become more effective. The article provides the steps and related components to: (1) Identify; (2) Learn; and (3) Improve. While the instructional coaching cycle is only one effective coaching program, coaches also need professional learning that…

  8. A guide to third generation coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    Introduces a new conceptual framework for coaching practice Unique approach connects coaching to societal changes in society, work and life Strong focus on the importance of values and meaning in the coaching process Provides excellent material for ambitious practitioners and high level coaching...

  9. A Gift to Self: Leadership Coaching.

    Science.gov (United States)

    Bleich, Michael R

    2016-01-01

    In this article, the distinction between mentoring, therapy, and coaching is made, with a focus on the value of leadership coaching. Seven attributes to consider when selecting a coach and a framework describing the value proposition for retaining a coach are presented.

  10. Coaching af ph.d.-studerende

    DEFF Research Database (Denmark)

    Godskesen, Mirjam Irene

    Rapporten danner grundlag for at etablere et koncept for ph.d.-coaching. Erfaringerne fra et 2-årigt projekt om ph.d.-coaching i SCKK regi beskrives. De centrale temaer er tilrettelæggelse af den individuelle coaching, typiske temaer i coachingen og arbejdsdeling mellem coach og vejleder. Der er...

  11. Danish health professionals' experiences of being coached

    DEFF Research Database (Denmark)

    Ammentorp, Jette; Jensen, Hanne I; Uhrenfeldt, Lisbeth

    2013-01-01

    In recent years, coaching, as a supplement to professional development, has received increased attention, especially in nursing. Still, only little is known about how health professionals experience participating in coaching sessions. The purpose of this pilot study was to describe and analyze he...... health professionals' experiences from coaching-what coaching meant to them and how it influenced different aspects of their lives....

  12. Understanding good practice in workplace coaching

    OpenAIRE

    Skoumpopoulou, Dimitra

    2017-01-01

    Workplace coaching is growing rapidly and many organisations use it as a way to motivate and support their employees in their careers. This paper is a theoretical paper that draws upon the authors' experiences of workplace coaching. The author discusses the main aspects of successful workplace coaching while it summarises the most important behaviours and attitudes of an effective workplace coach.

  13. Modeling mechanical signals on the surface of µCT and CAD based rapid prototype scaffold models to predict (early stage) tissue development.

    Science.gov (United States)

    Hendrikson, W J; van Blitterswijk, C A; Verdonschot, N; Moroni, L; Rouwkema, J

    2014-09-01

    In the field of tissue engineering, mechano-regulation theories have been applied to help predict tissue development in tissue engineering scaffolds in the past. For this, finite element models (FEMs) were used to predict the distribution of strains within a scaffold. However, the strains reported in these studies are volumetric strains of the material or strains developed in the extracellular matrix occupying the pore space. The initial phase of cell attachment and growth on the biomaterial surface has thus far been neglected. In this study, we present a model that determines the magnitude of biomechanical signals on the biomaterial surface, enabling us to predict cell differentiation stimulus values at this initial stage. Results showed that magnitudes of the 2D strain--termed surface strain--were lower when compared to the 3D volumetric strain or the conventional octahedral shear strain as used in current mechano-regulation theories. Results of both µCT and CAD derived FEMs from the same scaffold were compared. Strain and fluid shear stress distributions, and subsequently the cell differentiation stimulus, were highly dependent on the pore shape. CAD models were not able to capture the distributions seen in the µCT FEM. The calculated mechanical stimuli could be combined with current mechanobiological models resulting in a tool to predict cell differentiation in the initial phase of tissue engineering. Although experimental data is still necessary to properly link mechanical signals to cell behavior in this specific setting, this model is an important step towards optimizing scaffold architecture and/or stimulation regimes. © 2014 Wiley Periodicals, Inc.

  14. Not teaching, but coaching creating a self-development culture in a classroom

    Directory of Open Access Journals (Sweden)

    MONIKA GROCHALSKA

    2014-12-01

    Full Text Available Nowadays we hear a lot about coaching, but what does coaching really mean? Why does it matter? What is more, the notion of edu-coaching has also emerged in recent years, and this idea seems to be gaining popularity. But can coaching replace traditional classroom education? To what extent could it be useful at school? In the first part of this article I would like to define what coaching is, how it is different from mentoring and how it can be used to support pupils and teachers at personal, team and whole school levels. Undoubtedly, there are obvious benefits of coaching for students, staff, school as well as coaches. There are three core skills of coaching: listening, questioning and reviewing. To be a good coach, a teacher should understand how to be a good listener and how to ask proper coaching questions. They should ask questions that help them and the coached/the pupil to review, reflect and to clarify matters throughout the lesson. There are some coaching tools that can be used at various stages of the coaching process at school, including the balance wheel, rating scale, bisociation, viewpoints and motivational record. A teacher can successfully use coaching on the basis of the GROW (Goal, Reality, Options and Will model. It can support the teacher’s development and his practice as a coach. As indicated in the on-line articles for teachers, starting professional training is also worthwhile. During the training, a teacher can learn how to develop classroom practice that supports growth through the use of high level listening, questioning, reflecting and summarising. Most of professional training programs contain the following elements: - using active listening and open questions to tackle issues such as pupil behaviour, - reaching their full potential by putting in place realistic goals and plans to achieve them, - taking responsibility for their own progress through change, - building rapports that can turn previously difficult

  15. Allogeneic mesenchymal precursor cells (MPCs) combined with an osteoconductive scaffold to promote lumbar interbody spine fusion in an ovine model.

    Science.gov (United States)

    Wheeler, Donna L; Fredericks, Douglas C; Dryer, Randall F; Bae, Hyun W

    2016-03-01

    Advances in immunomagnetic cell sorting have enabled isolation and purification of pleuripotent stem cells from marrow aspirates and have expanded stem cell therapies to include allogeneic sources. This study aimed to determine the safety and efficacy of allogeneic mesenchymal precursor cells (MPCs) combined with an osteoconductive scaffold in lumbar interbody spinal fusion using an ovine model. Thirty-two skeletally mature ewes underwent a single-level interbody fusion procedure using a Polyetheretherketone fusion cage supplemented with either iliac crest autograft (AG) or an osteconductive scaffold (Mastergraft Matrix, Medtronic, Memphis, TN, USA) with 2.5×10(6) MPCs, 6.25×10(6) MPCs, or 12.5×10(6) MPCs. Plain radiographs and computed tomography scans were scored for bridging bone at multiple points during healing and at necropsy. The biomechanical competency of fusion was scored by manual palpation and quantified using functional radiographs at necropsy. Postnecropsy histopathology and histomorphometric analysis assessed the local response to MPC treatment and quantified the volume and connectivity of newly formed bridging bone. Safety was assessed by serum biochemistry, hematology, and organ histopathology. Mesenchymal precursor cell treatment caused no adverse systemic or local tissue responses. All analyses indicated MPCs combined with an osteoconductive scaffold achieved similar or better fusion success as AG treatment after 16 weeks, and increasing the MPC dose did not enhance fusion. Manual palpation of the fusion site indicated more than 75% of MPC-treated and 65% of AG-treated animals achieved rigid fusion, which was corroborated with functional radiography. Computed tomography fusion scores indicated all animals in the MPC- and AG-treatment groups were fused at 16 weeks, yet X-ray scores indicated only 67% of the AG-treated animals were fused. Histomorphometry analyses showed equivalent outcomes for fusion connectivity and bony fusion area for

  16. Urethral reconstruction with a 3D porous bacterial cellulose scaffold seeded with lingual keratinocytes in a rabbit model.

    Science.gov (United States)

    Huang, Jian-Wen; Lv, Xiang-Guo; Li, Zhe; Song, Lu-Jie; Feng, Chao; Xie, Min-Kai; Li, Chao; Li, Hong-Bin; Wang, Ji-Hong; Zhu, Wei-Dong; Chen, Shi-Yan; Wang, Hua-Ping; Xu, Yue-Min

    2015-09-11

    The goal of this study was to evaluate the effects of urethral reconstruction with a three-dimensional (3D) porous bacterial cellulose (BC) scaffold seeded with lingual keratinocytes in a rabbit model. A novel 3D porous BC scaffold was prepared by gelatin sponge interfering in the BC fermentation process. Rabbit lingual keratinocytes were isolated, expanded, and seeded onto 3D porous BC. BC alone (group 1, N  =  10), 3D porous BC alone (group 2, N  =  10), and 3D porous BC seeded with lingual keratinocytes (group 3, N  =  10) were used to repair rabbit ventral urethral defects (2.0   ×   0.8 cm). Scanning electron microscopy revealed that BC consisted of a compact laminate while 3D porous BC was composed of a porous sheet buttressed by a dense outer layer. The average pore diameter and porosity of the 3D porous BC were 4.23   ±   1.14 μm and 67.00   ±   6.80%, respectively. At 3 months postoperatively, macroscopic examinations and retrograde urethrograms of urethras revealed that all urethras maintained wide calibers in group 3. Strictures were found in all rabbits in groups 1 and 2. Histologically, at 1 month postoperatively, intact epithelium occurred in group 3, and discontinued epithelium was found in groups 1 and 2. However, groups 2 and 3 exhibited similar epithelial regeneration, which was superior to that of group 1 at 3 months (p  3D porous BC seeded with lingual keratinocytes enhanced urethral tissue regeneration. 3D porous BC could potentially be used as an optimized scaffold for urethral reconstruction.

  17. The future of coaching as a profession

    DEFF Research Database (Denmark)

    Lane, David A.; Stelter, Reinhard; Rostron, Sunny Stout

    2010-01-01

    of the potential benefits to the industry of professional status has led to participation in international dialogues, such the Global Convention on Coaching (GCC) and the International Coaching Research Forum (ICRF). The GCC was established with the explicit aim of promoting consultation and exploration of areas......The popularity of coaching worldwide is seen in an array of international coaching conferences, burgeoning coach training and education, and emergent professional bodies for coach practitioners. This escalating demand has motivated coach practitioners, consumers and educators of coaching...... to advocate the professionalisation of the industry to ensure the quality of coaching services. Coaching as a form of practice is now widely adopted, although recognition as a profession remains contentious and patchy with different jurisdictions taking contrary views on its legitimacy. A growing awareness...

  18. Time-dependent bladder tissue regeneration using bilayer bladder acellular matrix graft-silk fibroin scaffolds in a rat bladder augmentation model.

    Science.gov (United States)

    Zhao, Yang; He, Yi; Zhou, Zhe; Guo, Jian-hua; Wu, Jia-sheng; Zhang, Ming; Li, Wei; Zhou, Juan; Xiao, Dong-dong; Wang, Zhong; Sun, Kang; Zhu, Ying-jian; Lu, Mu-jun

    2015-09-01

    With advances in tissue engineering, various synthetic and natural biomaterials have been widely used in tissue regeneration of the urinary bladder in rat models. However, reconstructive procedures remain insufficient due to the lack of appropriate scaffolding, which should provide a waterproof barrier function and support the needs of various cell types. To address these problems, we have developed a bilayer scaffold comprising a porous network (silk fibroin [SF]) and an underlying natural acellular matrix (bladder acellular matrix graft [BAMG]) and evaluated its feasibility and potential for bladder regeneration in a rat bladder augmentation model. Histological (hematoxylin and eosin and Masson's trichrome staining) and immunohistochemical analyses demonstrated that the bilayer BAMG-SF scaffold promoted smooth muscle, blood vessel, and nerve regeneration in a time-dependent manner. At 12weeks after implantation, bladders reconstructed with the BAMG-SF matrix displayed superior structural and functional properties without significant local tissue responses or systemic toxicity. These results demonstrated that the bilayer BAMG-SF scaffold may be a promising scaffold with good biocompatibility for bladder regeneration in the rat bladder augmentation model.

  19. Coaching for creativity, imagination, and innovation

    OpenAIRE

    Jagiello, Jolanta

    2006-01-01

    The Chartered Institute of Personal Development (CIPD) has acknowledged the rise of coaching, and has developed a set of standards to guide the coaching profession. The aim of this discussion paper is to explore the potential of creative coaching. What it could offer professional practitioners, and to investigate what professionals understand to be the components of creative coaching. In order, to reach conclusions and recommendations on how the professional coach can practically engage with ...

  20. Assembly of PRR-containing receptors on scaffolds: a model for imidazoline I(1)-receptor action.

    Science.gov (United States)

    Musgrave, I F; Dehle, F C; Piletz, J

    2003-12-01

    IRAS, a putative clone of the I(1)-imidazoline receptor, possesses a proline-rich region (PRR) motif, which might interact with SH3 regions on tyrosine kinases, and an integrin-binding motif. Receptors with a PRR motif can generally assemble onto multi-element signaling complexes (eg., the beta(3)-receptor on the EGF receptor) and thereby modulate signal transduction. Integrins serve as scaffolds for multi-element signaling complexes, similar to that assembled with the EGF receptor. It is therefore possible that IRAS signals through a complex with other receptors.

  1. Exploring the Effect of Embedded Scaffolding within Curricular Tasks on Third-Grade Students' Model-Based Explanations about Hydrologic Cycling

    Science.gov (United States)

    Zangori, Laura; Forbes, Cory T.; Schwarz, Christina V.

    2015-01-01

    Opportunities to generate model-based explanations are crucial for elementary students, yet are rarely foregrounded in elementary science learning environments despite evidence that early learners can reason from models when provided with scaffolding. We used a quasi-experimental research design to investigate the comparative impact of a scaffold…

  2. Exploring the Effect of Embedded Scaffolding within Curricular Tasks on Third-Grade Students' Model-Based Explanations about Hydrologic Cycling

    Science.gov (United States)

    Zangori, Laura; Forbes, Cory T.; Schwarz, Christina V.

    2015-01-01

    Opportunities to generate model-based explanations are crucial for elementary students, yet are rarely foregrounded in elementary science learning environments despite evidence that early learners can reason from models when provided with scaffolding. We used a quasi-experimental research design to investigate the comparative impact of a scaffold…

  3. Impact of coaching on university student’s well-being, stress and anxiety

    DEFF Research Database (Denmark)

    Spaten, Ole Michael

    group program. Another RC study among executives found that individual coaching sessions “…enhanced goal attainment, increased resilience and workplace well-being and reduced depression and stress” (Grant et al., 2009). A total of eight RCT has been reported in the entire history of coaching psychology......Coaching Psychology is defined to enhance performance in personal life and work domains within normal, non-clinical populations, and underpinned by models of coaching grounded in established learning theory or psychological approaches (Grant & Palmer, 2002, BPS, SGCP, 2005). Research has shown...... the application of coaching psychology (e.g. Palmer & Gyllensten, 2008; Whybrow, & Palmer, 2006) but few evidence based research projects have been conducted (Grant, 2006; Palmer & Whybrow, 2007) although this is improving. RQ: Will four coaching psychology sessions reduce a newcomer student’s stress and anxiety...

  4. Repair of bone defects using adipose-derived stem cells combined with alpha-tricalcium phosphate and gelatin sponge scaffolds in a rat model

    Science.gov (United States)

    CORSETTI, Adriana; BAHUSCHEWSKYJ, Claudia; PONZONI, Deise; LANGIE, Renan; dos SANTOS, Luis Alberto; CAMASSOLA, Melissa; NARDI, Nance Beyer; PURICELLI, Edela

    2017-01-01

    Abstract Objectives This study aimed to evaluate the potential of adipose-derived stem cells (ASCs) combined with a modified α-tricalcium phosphate (α-TCP) or gelatin sponge (GS) scaffolds for bone healing in a rat model. Material and Methods Bone defects were surgically created in the femur of adult SHR rats and filled with the scaffolds, empty or combined with ASCs. The results were analyzed by histology and histomorphometry on days seven, 14, 30, and 60. Results Significantly increased bone repair was observed on days seven and 60 in animals treated with α-TCP/ASCs, and on day 14 in the group treated with GS/ASCs, when compared with the groups treated with the biomaterials alone. Intense fibroplasia was observed in the group treated with GS alone, on days 14 and 30. Conclusions Our results showed that the use of ASCs combined with α-TCP or GS scaffolds resulted in increased bone repair. The higher efficacy of the α-TCP scaffold suggests osteoconductive property that results in a biological support to the cells, whereas the GS scaffold functions just as a carrier. These results confirm the potential of ASCs in accelerating bone repair in in vivo experimental rat models. These results suggest a new alternative for treating bone defects. PMID:28198971

  5. Developing multi-cellular tumor spheroid model (MCTS) in the chitosan/collagen/alginate (CCA) fibrous scaffold for anticancer drug screening

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Jian-Zheng, E-mail: wppzheng@126.com [Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (China); Affiliated General Hospital, Tianguan Group Co., Ltd, Nanyang 473000 (China); Testing Center of Henan Tianguan Group Co., Ltd, Nanyang 473000 (China); Zhu, Yu-Xia [Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (China); Affiliated General Hospital, Tianguan Group Co., Ltd, Nanyang 473000 (China); Testing Center of Henan Tianguan Group Co., Ltd, Nanyang 473000 (China); Ma, Hui-Chao; Chen, Si-Nan; Chao, Ji-Ye; Ruan, Wen-Ding; Wang, Duo; Du, Feng-guang [Affiliated General Hospital, Tianguan Group Co., Ltd, Nanyang 473000 (China); Testing Center of Henan Tianguan Group Co., Ltd, Nanyang 473000 (China); Meng, Yue-Zhong [State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275 (China)

    2016-05-01

    In this work, a 3D MCTS-CCA system was constructed by culturing multi-cellular tumor spheroid (MCTS) in the chitosan/collagen/alginate (CCA) fibrous scaffold for anticancer drug screening. The CCA scaffolds were fabricated by spray-spinning. The interactions between the components of the spray-spun fibers were evidenced by methods of Coomassie Blue stain, X-ray diffraction (XRD) and Fourier transform-infrared spectroscopy (FTIR). Co-culture indicated that MCF-7 cells showed a spatial growth pattern of multi-cellular tumor spheroid (MCTS) in the CCA fibrous scaffold with increased proliferation rate and drug-resistance to MMC, ADM and 5-Aza comparing with the 2D culture cells. Significant increases of total viable cells were found in 3D MCTS groups after drug administration by method of apoptotic analysis. Glucose–lactate analysis indicated that the metabolism of MCTS in CCA scaffold was closer to the tumor issue in vivo than the monolayer cells. In addition, MCTS showed the characteristic of epithelial mesenchymal transition (EMT) which is subverted by carcinoma cells to facilitate metastatic spread. These results demonstrated that MCTS in CCA scaffold possessed a more conservative phenotype of tumor than monolayer cells, and anticancer drug screening in 3D MCTS-CCA system might be superior to the 2D culture system. - Highlights: • Chitosan/collagen/alginate (CCA) scaffolds were fabricated by spray-spinning. • MCF-7 cells presented a multi-cellular tumor spheroid model (MCTS) in CCA scaffold. • MCTS in CCA possessed a more conservative phenotype of tumor than monolayer cells. • Anticancer drug screening in MCTS-CCA system is superior to 2D culture system.

  6. The effectiveness of workplace coaching: A meta-analysis of learning and performance outcomes from coaching

    OpenAIRE

    Jones, RJ; Woods, SA; Guillaume, YRF

    2016-01-01

    This study presents a meta-analysis synthesizing the existing research on the effectiveness of workplace coaching. We exclusively explore workplace coaching provided by internal or external coaches and therefore exclude cases of manager-subordinate and peer coaching. We propose a framework of potential outcomes from coaching in organizations, which we examine meta-analytically (k = 17). Our analyses indicated that coaching had positive effects on organizational outcomes overall (δ = 0.36), an...

  7. The Effectiveness of Workplace Coaching: A Meta-analysis of Learning and Performance Outcomes from Coaching.

    OpenAIRE

    Jones, Rebecca J.; Woods, S.A.; Guillaume, Y.R.F.

    2015-01-01

    This study presents a meta-analysis synthesizing the existing research on the effectiveness of workplace coaching. We exclusively explore workplace coaching provided by internal or external coaches and therefore exclude cases of manager-subordinate and peer coaching. We propose a framework of potential outcomes from coaching in organizations, which we examine meta-analytically (k = 17). Our analyses indicated that coaching had positive effects on organizational outcomes overall ( = 0.36), an...

  8. A biodegradable antibiotic-impregnated scaffold to prevent osteomyelitis in a contaminated in vivo bone defect model

    Directory of Open Access Journals (Sweden)

    JS McLaren

    2014-06-01

    Full Text Available Open fractures are at risk of serious infection and, if infected, require several surgical interventions and courses of systemic antibiotics. We investigated a new injectable formulation that simultaneously hardens in vivo to form a porous scaffold for bone repair and delivers antibiotics at high concentrations to the local site of infection. Duration of antimicrobial activity against Staphylococcus aureus was determined using the serial plate transfer test. Ultimate compressive strength and porosity of the material was measured with and without antibiotics. The material was evaluated in vivo in an ovine medial femoral condyle defect model contaminated with S. aureus. Sheep were sacrificed at either 2 or 13 weeks and the defect and surrounding bone assessed using micro-computed tomography and histology. Antimicrobial activity in vitro persisted for 19-21 days. Sheep with antibiotic-free material and bacteria became infected, while those with antibiotic-containing material and bacteria did not. Similarly, new bone growth was seen in uninoculated animals with plain polymer, and in those with antibiotic polymer with bacteria, but not in sheep with plain polymer and bacteria. The antibiotic-impregnated scaffolds were effective in preventing S. aureus infections whilst supporting bone growth and repair. If translated into clinical practice, this approach might reduce the need for systemic antibiotics.

  9. Anterior cruciate ligament reconstruction in a rabbit model using silk-collagen scaffold and comparison with autograft.

    Directory of Open Access Journals (Sweden)

    Fanggang Bi

    Full Text Available The objective of the present study was to perform an in vivo assessment of a novel silk-collagen scaffold for anterior cruciate ligament (ACL reconstruction. First, a silk-collagen scaffold was fabricated by combining sericin-extracted knitted silk fibroin mesh and type I collagen to mimic the components of the ligament. Scaffolds were electron-beam sterilized and rolled up to replace the ACL in 20 rabbits in the scaffold group, and autologous semitendinosus tendons were used to reconstruct the ACL in the autograft control group. At 4 and 16 weeks after surgery, grafts were retrieved and analyzed for neoligament regeneration and tendon-bone healing. To evaluate neoligament regeneration, H&E and immunohistochemical staining was performed, and to assess tendon-bone healing, micro-CT, biomechanical test, H&E and Russell-Movat pentachrome staining were performed. Cell infiltration increased over time in the scaffold group, and abundant fibroblast-like cells were found in the core of the scaffold graft at 16 weeks postoperatively. Tenascin-C was strongly positive in newly regenerated tissue at 4 and 16 weeks postoperatively in the scaffold group, similar to observations in the autograft group. Compared with the autograft group, tendon-bone healing was better in the scaffold group with trabecular bone growth into the scaffold. The results indicate that the silk-collagen scaffold has considerable potential for clinical application.

  10. "It's about Improving My Practice": The Learner Experience of Real-Time Coaching

    Science.gov (United States)

    Sharplin, Erica J.; Stahl, Garth; Kehrwald, Ben

    2016-01-01

    This article reports on pre-service teachers' experience of the Real-Time Coaching model, an innovative technology-based approach to teacher training. The Real-Time Coaching model uses multiple feedback cycles via wireless technology to develop within pre-service teachers the specific skills and mindset toward continual improvement. Results of…

  11. The Technology Coach: Implementing Instructional Technology in Kean University's ESL Program

    Science.gov (United States)

    Snyder, Sharon C.; Best, Linda; Griffith, Ruth P.; Nelson, Charles

    2011-01-01

    Faculty involved in implementing a grant to incorporate technology into post-secondary ESL teaching and learning describe the coaching model they used to do this. The authors explain how they drew from principles of literacy coaching to develop and implement their model; describe their experiences in working with coachees; discuss technology…

  12. Seven domains for leadership mentoring and executive coaching A reflective paper

    Directory of Open Access Journals (Sweden)

    Paul O. Olson

    2014-07-01

    Full Text Available This article discusses how coaching and mentoring can be integrated and work together as systematic tools for leadership development. The author draws on psychotherapy as a parallel for practitioner research and posits five validation hypotheses for coaching and mentoring. Arguably coaching is not sufficient to develop leaders, but a useful toolbox within mentoring. Internal mentors in particular have cultural and industry knowledge of direct relevance to the adept. Seven domains are identified for an integrated framework: Insight from reflection and meta-learning; Working with the whole person; Competence modelling; Deep listening, beyond words; Emotional intelligence; Coaching for results; and Systemic thinking and team development.

  13. Micromechanical finite-element modeling and experimental characterization of the compressive mechanical properties of polycaprolactone-hydroxyapatite composite scaffolds prepared by selective laser sintering for bone tissue engineering.

    Science.gov (United States)

    Eshraghi, Shaun; Das, Suman

    2012-08-01

    Bioresorbable scaffolds with mechanical properties suitable for bone tissue engineering were fabricated from polycaprolactone (PCL) and hydroxyapatite (HA) by selective laser sintering (SLS) and modeled by finite-element analysis (FEA). Both solid gage parts and scaffolds having 1-D, 2-D and 3-D orthogonal, periodic porous architectures were made with 0, 10, 20 and 30 vol.% HA. PCL:HA scaffolds manufactured by SLS had nearly full density (99%) in the designed solid regions and had excellent geometric and dimensional control. Through optimization of the SLS process, the compressive moduli for our solid gage parts and scaffolds are the highest reported in the literature for additive manufacturing. The compressive moduli of solid gage parts were 299.3, 311.2, 415.5 and 498.3 MPa for PCL:HA loading at 100:0, 90:10, 80:20 and 70:30, respectively. The compressive effective stiffness tended to increase as the loading of HA was increased and the designed porosity was lowered. In the case of the most 3-D porous scaffold, the compressive modulus more than doubled from 14.9 to 36.2 MPa when changing the material from 100:0 to 70:30 PCL:HA. A micromechanical FEA model was developed to investigate the reinforcement effect of HA loading on the compressive modulus of the bulk material. Using a first-principles based approach, the random distribution of HA particles in a solidified PCL matrix was modeled for any HA loading to predict the bulk mechanical properties of the composites. The bulk mechanical properties were also used for FEA of the scaffold geometries. The results of the FEA were found to be in good agreement with experimental mechanical testing. The development of patient- and site-specific composite tissue-engineering constructs with tailored properties can be seen as a direct extension of this work on computational design, a priori modeling of mechanical properties and direct digital manufacturing.

  14. Developmental Scaffolding

    DEFF Research Database (Denmark)

    Giorgi, Franco; Bruni, Luis Emilio

    2015-01-01

    . Within the developmental hierarchy, each module yields an inter-level relationship that makes it possible for the scaffolding to mediate the production of selectable variations. Awide range of genetic, cellular and morphological mechanisms allows the scaffolding to integrate these modular variations...... is eventually attained when the embryo acquires the capacity to impose a number of developmental constraints on its constituting parts in a top-down direction. The acquisition of this capacity allows a semiotic threshold to emerge between the living cellular world and the underlying nonliving molecular world...... to the complexity of sign recognition proper of a cellular community. In this semiotic perspective, the apparent goal directness of any developmental strategy should no longer be accounted for by a predetermined genetic program, but by the gradual definition of the relationships selected amongst the ones...

  15. Model-Based Optimization of Scaffold Geometry and Operating Conditions of Radial Flow Packed-Bed Bioreactors for Therapeutic Applications

    Directory of Open Access Journals (Sweden)

    Danilo Donato

    2014-01-01

    Full Text Available Radial flow perfusion of cell-seeded hollow cylindrical porous scaffolds may overcome the transport limitations of pure diffusion and direct axial perfusion in the realization of bioengineered substitutes of failing or missing tissues. Little has been reported on the optimization criteria of such bioreactors. A steady-state model was developed, combining convective and dispersive transport of dissolved oxygen with Michaelis-Menten cellular consumption kinetics. Dimensional analysis was used to combine more effectively geometric and operational variables in the dimensionless groups determining bioreactor performance. The effectiveness of cell oxygenation was expressed in terms of non-hypoxic fractional construct volume. The model permits the optimization of the geometry of hollow cylindrical constructs, and direction and magnitude of perfusion flow, to ensure cell oxygenation and culture at controlled oxygen concentration profiles. This may help engineer tissues suitable for therapeutic and drug screening purposes.

  16. Health coaching: a concept analysis.

    Science.gov (United States)

    Olsen, Jeanette M

    2014-01-01

    Variations in the use of health coaching documented in the literature indicate a lack of conceptual clarity. The purpose of this article was to clarify the meaning of health coaching and propose an operational definition. Seven attributes were identified and used to propose an operational definition of health coaching as a goal-oriented, client-centered partnership that is health-focused and occurs through a process of client enlightenment and empowerment. This operational definition and the proposed empirical measures of each attribute can be used to validate the presence of health coaching, develop theory-based applications, and consistently test the effectiveness of interventions using this concept. © 2013 Wiley Periodicals, Inc.

  17. Identifying competencies of boxing coaches

    Directory of Open Access Journals (Sweden)

    Ioannis Tasiopoulos

    2014-10-01

    Full Text Available The purpose of this study was to find out the management skills required by boxing coaches to administrate their clubs. For the purposes of this study a scale was constructed which was answered by 98 boxing coaches. Explanatory factor analysis revealed seven factors: Communication-public relations (5 items, event management (4 items, management techniques (4 items, new technologies (4 items, prevention-safety (2 items, sport (5 items and sports facilities (2 items. The Cronbach of the scale was 0.85. The five competencies that rated by the coaches were: Supervisors of the area of training, maintaining excellent communication with athletes, using new technologies (e-mail, internet, handling disciplinary matters, accidents, complaints and reports on some sporting games and promoted harmony among athletes. We concluded that boxing coaches understand that the competencies required for meeting their obligations, were related to sports, prevention, safety and communications-public relations.

  18. Tubular open-porous β-tricalcium phosphate polycaprolactone scaffolds as guiding structure for segmental bone defect regeneration in a novel sheep model.

    Science.gov (United States)

    Pobloth, Anne-Marie; Schell, Hanna; Petersen, Ansgar; Beierlein, Katleen; Kleber, Christian; Schmidt-Bleek, Katharina; Duda, Georg N

    2017-05-08

    Large segmental bone defect reconstruction with sufficient functional restoration is one of the most demanding challenges in orthopaedic surgery. Available regenerative treatment options, as the vascularized bone graft transfer, the Masquelet technique or the Ilizarov distraction osteogenesis, are associated with specific indications and distinct limitations. As an alternative, a hollow cylindrical ceramic-polymer composite scaffold (β-tricalcium phosphate and poly-lactid co-ε- caprolactone), facilitating a strong surface guiding effect for tissue ingrowth (group 1; n = 6) was investigated here. In combination with an additional autologous, cancellous bone graft filling, the scaffold's ability to work as an open-porous membrane to improve the defect healing process was analysed (group 2; n = 6). A novel model of a critical size (40 mm) tibia osteotomy defect stabilized with an external hybrid-ring fixator, was established in sheep. Segmental defect regeneration and tissue organization in relation to the scaffold were analysed radiologically, (immune-) histologically, and with second-harmonic generation imaging 12 weeks after surgery. The scaffold's tubular shape and open-porous structure controlled the collagen fibre orientation within the bone defect and guided the following mineralization process along the scaffold surface. In combination with the osteoinductive stimulus, a unilateral bony bridging of the critically sized defect was achieved in one third of the animals. The external hybrid-ring fixator was appropriate for large segmental defect stabilization in sheep. Copyright © 2017 John Wiley & Sons, Ltd.

  19. A Pre-Service Teacher Training Model with Instructional Technology Graduate Students as Peer Coaches to Elementary Pre-Service Teachers

    Science.gov (United States)

    Slagter van Tryon, Patricia J.; Schwartz, Catherine Stein

    2012-01-01

    This paper describes a peer coaching collaboration between graduate students in a Master's program in Instructional Technology and undergraduate pre-service teachers enrolled in an elementary mathematics methods course. Integrated as a major project in a graduate level K-12 technology integration course, the Instructional Technology students…

  20. Executive coaching experiences: A systems psychodynamic perspective

    Directory of Open Access Journals (Sweden)

    Frans Cilliers

    2005-10-01

    Full Text Available The Integrated Executive Experiential Learning Coaching model was applied in an information technology organisation. The aim of the research was to analyse and interpret the experiences of seven executives in the form of written essays from the systems psychodynamic perspective. The manifesting themes were, experiential learning facilitates the working through of defences; interdependency facilitates taking responsibility for the self; flight reactions inhibit owning and learning; transcending defences is needed to authorise the self in role; the difficulty of moving from the paranoid-schizoid to the depressive position and valuing all parts of the self; and containment facilitates self-authorisation. Recommendations towards more effective executive coaching are presented. Opsomming Die “Integrated Executive Experiential Learning Coaching model�? is toegepas in ’n inligtings tegnologie organisasie. Die doel van die navorsing was om die ervaring van sewe uitvoerende beamptes in opstel-formaat te analiseer en te interpreteer vanuit die stelsel psigodinamiese benadering. Die manifesterende temas was, ervaringeleer fasiliteer die deurwerk van verdedigingsmeganismes; interafhanklikheid fasiliteer die neem van selfverantwoordelikheid; vlug reaksies inhibeer eienaarskap en leer; die transendering van verdedigings is nodig vir self outorisering; die moeisaamheid van beweeg vanaf die paranoide-skisiode na die depressiewe posisie en waardering van alle gedeeltes van die self; en behouering fasiliteer self-outoriteit. Aanbevelings vir meer effektiewe uitvoerende afrigting is aangebied.

  1. 3D-macroporous hybrid scaffolds for tissue engineering: Network design and mathematical modeling of the degradation kinetics

    Energy Technology Data Exchange (ETDEWEB)

    Mansur, Herman S., E-mail: hmansur@demet.ufmg.br [Department of Metallurgical and Materials Engineering, Laboratory of Biomaterials and Tissue Engineering, Federal University of Minas Gerais (Brazil); Costa, Hermes S. [Department of Materials Engineering, CEFET-MG (Brazil); Mansur, Alexandra A.P.; Pereira, Marivalda [Department of Metallurgical and Materials Engineering, Laboratory of Biomaterials and Tissue Engineering, Federal University of Minas Gerais (Brazil)

    2012-04-01

    In the present study it is reported the synthesis, characterization and subsequent degradation performance of organic-inorganic hybrid systems chemically modified by bi-functional crosslinker (glutaraldehyde, GA). The hybrids were prepared by combining 70% poly (vinyl alcohol) and 30% bioactive glass (58SiO{sub 2}-33CaO-9P{sub 2}O{sub 5}, BaG) via sol-gel route using foaming-casting method producing different macroporous tri-dimensional scaffolds depending on the degree of network crosslinking. The in vitro degradation kinetics was evaluated by measuring the mass loss upon soaking into de-ionized water at 37 Degree-Sign C for up to 21 days and different mathematical models were tested. The PVA/BaG hybrids scaffolds properties 'as-synthesized' and after the degradation process were extensively characterized by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), mechanical compressing tests and X-ray Micro-computed Tomography analysis ({mu}CT). The results have clearly shown the effectiveness of tailoring the PVA/BaG hybrids properties and degradation kinetics mechanisms by chemically engineering the structure at nano-order level using different concentrations of the crosslinker. Moreover, these hybrid crosslinked nanostructures have shown 3D hierarchical pore size with interconnected architecture within the range of 10-450 {mu}m for potential use in the field of bone regenerative medicine. Highlights: Black-Right-Pointing-Pointer Hybrid scaffolds 70% polyvinyl alcohol-30%/bioactive glass (58SiO{sub 2}-33CaO-9P{sub 2}O{sub 5}). Black-Right-Pointing-Pointer 3D-Macropore nanostructure engineered by covalent chemical crosslinker. Black-Right-Pointing-Pointer Pore size distribution and mechanical properties comparable to cancellous bone. Black-Right-Pointing-Pointer Analysis of degradation kinetics and mechanism using five mathematical models. Black-Right-Pointing-Pointer hybrid potentially appropriate for bone tissue

  2. Bladder tissue regeneration using acellular bi-layer silk scaffolds in a large animal model of augmentation cystoplasty.

    Science.gov (United States)

    Tu, Duong D; Chung, Yeun Goo; Gil, Eun Seok; Seth, Abhishek; Franck, Debra; Cristofaro, Vivian; Sullivan, Maryrose P; Di Vizio, Dolores; Gomez, Pablo; Adam, Rosalyn M; Kaplan, David L; Estrada, Carlos R; Mauney, Joshua R

    2013-11-01

    Acellular scaffolds derived from Bombyx mori silk fibroin were investigated for their ability to support functional tissue regeneration in a porcine model of augmentation cystoplasty. Two bi-layer matrix configurations were fabricated by solvent-casting/salt leaching either alone (Group 1) or in combination with silk film casting (Group 2) to yield porous foams buttressed by heterogeneous surface pore occlusions or homogenous silk films, respectively. Bladder augmentation was performed with each scaffold group (6 × 6 cm(2)) in juvenile Yorkshire swine for 3 m of implantation. Augmented animals exhibited high rates of survival (Group 1: 5/6, 83%; Group 2: 4/4, 100%) and voluntary voiding over the course of the study period. Urodynamic evaluations demonstrated mean increases in bladder capacity over pre-operative levels (Group 1: 277%; Group 2: 153%) which exceeded nonsurgical control gains (144%) encountered due to animal growth.In addition, animals augmented with both matrix configurations displayed increases in bladder compliance over pre-operative levels(Group 1: 357%; Group 2: 338%) similar to growth-related elevations observed in non-surgical controls (354%) [corrected]. Gross tissue evaluations revealed that both matrix configurations supported extensive de novo tissue formation throughout the entire original implantation site which exhibited ultimate tensile strength similar to nonsurgical counterparts. Histological and immunohistochemical analyses showed that both implant groups promoted comparable extents of smooth muscle regeneration and contractile protein (α-smooth muscle actin and SM22α) expression within defect sites similar to controls. Parallel evaluations demonstrated the formation of a transitional, multi-layered urothelium with prominent cytokeratin, uroplakin, and p63 protein expression in both matrix groups. De novo innervation and vascularization processes were evident in all regenerated tissues indicated by synaptophysin-positive neuronal

  3. DAS COACHING FÜR DIE KARRIERE

    OpenAIRE

    Fleseriu Adam; Fleseriu Cristina

    2010-01-01

    Coaching means change and transformation. This is the people`s ability to change their behavior, to rediscover and to create a new identity and new plans for the future. The coaching is divided, at this moment, in three categories: business coaching, executive coaching and live skills coaching. If we are talking about career coaching, we can say that this one is present in all its stages: if the person is choosing the first job, if the person is changing the workplace during the career and if...

  4. The scientific building blocks for business coaching: A literature review

    Directory of Open Access Journals (Sweden)

    Flip Schutte

    2015-03-01

    Full Text Available Orientation: Business coaching is a relatively new approach to leadership development. It is also slowly growing as an academic discipline with only a small number of active researchers and a dearth of published literature reviews.Research purpose: This article is an investigation into the current level of development of the body of knowledge related to business coaching by means of a systematic literature review.Motivation of the study: Previous literature reviews summarised the available published articles. In order to contribute to establishing business coaching as an independent academic discipline, the building blocks for science in the phenomenon under investigation have to be scientifically not only summarised, but also synthesised and explored to ground this new discipline as an academic field of research.Research design, approach and method: A methodological framework has been developed to analyse the information. The data were synthesised according to the following building blocks for science: concepts, definitions, typologies, models, theories and paradigms.Main findings: A total of 84 articles were accessed by the specified search strategy and 36 were analysed according to inclusive and exclusive criteria. Although coaching has not been sufficiently developed as an academic discipline, it is possible to develop a comprehensive definition of coaching, as well as to identify the main models and theories that apply to this field.Practical/managerial implications: This literature review has synthesised and summarised the available data in such a way that it will contribute to the conceptualisation and foundation of business coaching as an academic discipline.Contribution: The building blocks for business coaching as a relatively new and emerging science within the field of business leadership have been defined. This will contribute to the articulation of concepts within this discipline by future researchers and practitioners.

  5. A mathematical model and computational framework for three-dimensional chondrocyte cell growth in a porous tissue scaffold placed inside a bi-directional flow perfusion bioreactor.

    Science.gov (United States)

    Shakhawath Hossain, Md; Bergstrom, D J; Chen, X B

    2015-12-01

    The in vitro chondrocyte cell culture for cartilage tissue regeneration in a perfusion bioreactor is a complex process. Mathematical modeling and computational simulation can provide important insights into the culture process, which would be helpful for selecting culture conditions to improve the quality of the developed tissue constructs. However, simulation of the cell culture process is a challenging task due to the complicated interaction between the cells and local fluid flow and nutrient transport inside the complex porous scaffolds. In this study, a mathematical model and computational framework has been developed to simulate the three-dimensional (3D) cell growth in a porous scaffold placed inside a bi-directional flow perfusion bioreactor. The model was developed by taking into account the two-way coupling between the cell growth and local flow field and associated glucose concentration, and then used to perform a resolved-scale simulation based on the lattice Boltzmann method (LBM). The simulation predicts the local shear stress, glucose concentration, and 3D cell growth inside the porous scaffold for a period of 30 days of cell culture. The predicted cell growth rate was in good overall agreement with the experimental results available in the literature. This study demonstrates that the bi-directional flow perfusion culture system can enhance the homogeneity of the cell growth inside the scaffold. The model and computational framework developed is capable of providing significant insight into the culture process, thus providing a powerful tool for the design and optimization of the cell culture process.

  6. The Drosophila larval neuromuscular junction as a model for scaffold complexes at glutamatergic synapses: benefits and limitations.

    Science.gov (United States)

    Thomas, Ulrich; Kobler, Oliver; Gundelfinger, Eckart D

    2010-09-01

    Based on unbeatable genetic accessibility and relative simplicity, the Drosophila larval neuromuscular junction has become a widely used model system for studying functional and structural aspects of excitatory glutamatergic synapses. Membrane-associated guanylate kinase-like proteins (MAGUKs) are first-order scaffolding molecules enriched at many cellular junctions, including synapses, where they coordinate multiple binding partners, including cell adhesion molecules and ion channels. The enrichment of the prototypic MAGUK Discs-Large at larval NMJs apparently parallels the high abundance of its homologs at excitatory synapses in the mammalian central nervous system. Here, the authors review selected aspects of the long-standing work on Dlg at fly neuromuscular junctions, thereby scrutinizing its subcellular localization, function, and regulation with regard to corresponding aspects of MAGUKs in vertebrate neurons.

  7. Catching the Bug: How Virtual Coaching Improves Teaching

    Science.gov (United States)

    Allen, Megan

    2014-01-01

    In this article the author describes virtual coaching and why it is so effective. The following six points of virtual coaching are explained: (1) Also known as bug-in-ear coaching, virtual coaching is not new; (2) Virtual coaching can save money and time; (3) Bug-in-ear coaching increases the frequency of observations for novice teachers; (4) It…

  8. Can You Skype Me Now? Developing Teachers' Classroom Management Practices through Virtual Coaching

    Science.gov (United States)

    Rock, Marcia L.; Schoenfeld, Naomi; Zigmond, Naomi; Gable, Robert A.; Gregg, Madeleine; Ploessl, Donna M.; Salter, Ashley

    2013-01-01

    In this article, situated within the context of a larger ongoing study on the efficacy of Web-based virtual coaching, these authors describe a virtual coaching model for maximizing pre- and in-service teachers' effective use of evidence-based classroom management practices. They also provide a brief summary of previous results obtained…

  9. Analysis of an Instructional Coach's Role as Elementary School Language Teachers' Professional Developer

    Science.gov (United States)

    Chien, Chin-Wen

    2013-01-01

    Coaches can provide teachers with quality professional development experiences by mentoring, providing workshops, modeling, or encouraging professional growth (York-Barr & Duke, 2004). This study focuses on the instructional coach's role in the professional development of teachers of English language learners (ELLs). The study has the following…

  10. How to Measure Coach Burnout: An Evaluation of Three Burnout Measures

    Science.gov (United States)

    Lundkvist, Erik; Stenling, Andreas; Gustafsson, Henrik; Hassmén, Peter

    2014-01-01

    Although coach burnout has been studied for 30 years, what measure to use in this context has not yet been problematized. This study focuses on evaluating convergent and discriminant validity of three coach burnout measures by using multi-trait/multi-method analysis (CT-C[M-1]) model. We choose Maslach Burnout Inventory (MBI), the two dimensional…

  11. Applying Coaching Strategies to Support Youth- and Family-Focused Extension Programming

    Science.gov (United States)

    Olson, Jonathan R.; Hawkey, Kyle R.; Smith, Burgess; Perkins, Daniel F.; Borden, Lynne M.

    2016-01-01

    In this article, we describe how a peer-coaching model has been applied to support community-based Extension programming through the Children, Youth, and Families at Risk (CYFAR) initiative. We describe the general approaches to coaching that have been used to help with CYFAR program implementation, evaluation, and sustainability efforts; we…

  12. How to Measure Coach Burnout: An Evaluation of Three Burnout Measures

    Science.gov (United States)

    Lundkvist, Erik; Stenling, Andreas; Gustafsson, Henrik; Hassmén, Peter

    2014-01-01

    Although coach burnout has been studied for 30 years, what measure to use in this context has not yet been problematized. This study focuses on evaluating convergent and discriminant validity of three coach burnout measures by using multi-trait/multi-method analysis (CT-C[M-1]) model. We choose Maslach Burnout Inventory (MBI), the two dimensional…

  13. Composites containing albumin protein or cyanoacrylate adhesives and biodegradable scaffolds: II. In vivo wound closure study in a rat model

    Science.gov (United States)

    McNally-Heintzelman, Karen M.; Heintzelman, Douglas L.; Duffy, Mark T.; Bloom, Jeffrey N.; Soller, Eric C.; Gilmour, Travis M.; Hoffman, Grant T.; Edward, Deepak

    2004-07-01

    Our Scaffold-Enhanced Biological Adhesive (SEBA) system was investigated as an alternative to sutures or adhesives alone for repair of wounds. Two scaffold materials were investigated: (i) a synthetic biodegradable material fabricated from poly(L-lactic-co-glycolic acid); and (ii) a biologic material, small intestinal submucosa, manufactured by Cook BioTech. Two adhesive materials were also investigated: (i) a biologic adhesive composed of 50%(w/v) bovine serum albumin solder and 0.5mg/ml indocyanine green dye mixed in deionized water, and activated with an 808-nm diode laser; and (ii) Ethicon"s Dermabond, a 2-octyl-cyanoacrylate. The tensile strength and time-to-failure of skin incisions repaired in vivo in a rat model were measured at seven days postoperative. Incisions closed by protein solder alone, by Dermabond alone, or by suture, were also tested for comparison. The tensile strength of repairs formed using the SEBA system were 50% to 65% stronger than repairs formed by suture or either adhesive alone, with significantly less variations within each experimental group (average standard deviations of 15% for SEBA versus 38% for suture and 28% for adhesive alone). In addition, the time-to-failure curves showed a longevity not previously seen with the suture or adhesive alone techniques. The SEBA system acts to keep the dermis in tight apposition during the critical early phase of wound healing when tissue gaps are bridged by scar and granulation tissue. It has the property of being more flexible than either of the adhesives alone and may allow the apposed edges to move in conjunction with each other as a unit for a longer period of time and over a greater range of stresses than adhesives alone. This permits more rapid healing and establishment of integrity since the microgaps between the dermis edges are significantly reduced. By the time the scaffolds are sloughed from the wound site, there is greater strength and healing than that produced by adhesive alone or

  14. A polycaprolactone-tricalcium phosphate composite scaffold as an autograft-free spinal fusion cage in a sheep model.

    Science.gov (United States)

    Li, Yi; Wu, Zhi-gang; Li, Xiao-kang; Guo, Zheng; Wu, Su-hua; Zhang, Yong-quan; Shi, Lei; Teoh, Swee-hin; Liu, Yu-chun; Zhang, Zhi-yong

    2014-07-01

    Titanium (Ti) based spinal fusion cages are frequently used in the clinics for the treatment of spinal degeneration and related diseases, however, their further clinical application is generally harassed by several drawbacks such as stress shielding, non-biodegradability and additional bone grafting procedure. Our earlier work has demonstrated the efficacy of a biodegradable macro-porous polycaprolactone-tricalcium phosphate (PCL-TCP) composite scaffold in promoting bony tissue ingrowth as well as its ability to sustain mechanical loads upon implantation into an orthotopic defect site. In this study, we investigated the use of PCL-TCP scaffold as an autograft-free spinal fusion cage in a preclinical sheep model over 12 months, and compared the fusion efficacy against Ti cages incorporated with autografts. Results showed that despite PCL-TCP scaffold as an autograft-free cage attaining a slower fusion rate at early stage (6 month), it achieved similar degree of spinal fusion efficacy as Ti cages aided with autograft at 12 month post-operation as evidenced by the radiographic and histological evaluation. PCL-TCP cages alone demonstrated better bone ingrowth with 2.6 fold higher bone/interspace ratio (B/I) and more homogeneous bone tissue distribution compared with that of the Ti cages (88.10  ±  3.63% vs. 33.74  ±  2.78%, p CT analysis. Moreover, besides the bone tissue ingrowth, a quantitative approach was illustrated to accurately evaluate the osteointegration of fusion cage with surrounding bone tissue, and showed a 1.36 fold higher degree of osteointegration occurred in PCL-TCP cage group than Ti cage group (CS/PC: 79.31  ±  3.15% vs 58.44  ±  2.43%, p  0.05). The degradation profile of the PCL-TCP cages was noted to increase in tandem with new bone ingrowth into the pores, while maintaining good structural integrity necessary for supporting the spinal interbody segments. Therefore, with the better osteointegration, more bone tissue

  15. Effect of polyurethane scaffold architecture on ingrowth speed and collagen orientation in a subcutaneous rat pocket model

    NARCIS (Netherlands)

    de Mulder, E.L.W.; Hannink, G.; Verdonschot, Nicolaas Jacobus Joseph; Buma, P.

    2013-01-01

    Clinically used scaffolds are suboptimal in regenerating the highly oriented meniscus fiber structure in full meniscal defects. The objective of this study was to test whether anisotropic porous scaffolds with channels resulted in a more meniscus like matrix organization compared to isotropic porous

  16. Exploring Coaching Actions Based on Developed Values: A Case Study of a Female Hockey Coach

    Science.gov (United States)

    Callary, Bettina; Werthner, Penny; Trudel, Pierre

    2013-01-01

    There are few empirical studies that demonstrate how values are developed and how they are linked to coaching actions. There can be a discrepancy between the statement of coaches' values and their actual coaching actions. In order to examine how coaching actions are influenced by values that are developed over a lifetime, the purpose of this…

  17. Coaching in style: A sequential analysis of interpersonal styles in coach-client interactions

    NARCIS (Netherlands)

    Ianiro, P.M.; Lehmann-Willenbrock, N.K.; Kauffeld, S.

    2015-01-01

    Purpose - Despite calls for studying interaction processes in coaching, little is known about the link between coach-client interactions and coaching success. In particular, interpersonal behavior in coaching remains unexplored, although it is considered highly relevant to social relationships and

  18. Coaching Conversations in Early Childhood Programs: The Contributions of Coach and Coachee

    Science.gov (United States)

    Jayaraman, Gayatri; Marvin, Christine; Knoche, Lisa; Bainter, Sue

    2015-01-01

    Studies to date have linked early childhood (EC) coaching to child, family, and teacher outcomes but have not investigated "what" is happening in a coaching conversation. This exploratory study specifically unpacks nuances associated with the coaching conversation process and associations between the EC coaches' behaviors and coachees'…

  19. Coaching in style: A sequential analysis of interpersonal styles in coach-client interactions

    NARCIS (Netherlands)

    Ianiro, P.M.; Lehmann-Willenbrock, N.K.; Kauffeld, S.

    2015-01-01

    Purpose - Despite calls for studying interaction processes in coaching, little is known about the link between coach-client interactions and coaching success. In particular, interpersonal behavior in coaching remains unexplored, although it is considered highly relevant to social relationships and i

  20. Coaches' and Principals' Conceptualizations of the Roles of Elementary Mathematics Coaches

    Science.gov (United States)

    Salkind, Gwenanne M.

    2010-01-01

    Many schools employ coaches to support mathematics instruction and student learning. This research study investigated the roles of coaches from five school districts in Virginia. Participants included 125 elementary mathematics coaches and 59 principals. Results from cross-sectional surveys revealed that most coaches did not have a degree in…

  1. Informal Math Coaching by Instant Messaging: Two Case Studies of How University Students Coach K-12 Students

    Science.gov (United States)

    Hrastinski, Stefan; Edman, Anneli; Andersson, Fredrik; Kawnine, Tanvir; Soames, Carol-Ann

    2014-01-01

    The aim of this study is to describe and explore how instant messaging (IM) can be used to support informal math coaching. We have studied two projects where university students use IM to coach K-12 students in mathematics. The coaches were interviewed with a focus on how informal coaching works by examining coaching challenges, how coaching can…

  2. Collagen-GAG Scaffolds Grafted Onto Myocardial Infarcts in a Rat Model: A Delivery Vehicle for Mesenchymal Stem Cells

    Institute of Scientific and Technical Information of China (English)

    Z. XIANG; R. LIAO; M. KELLY; M. SPECTOR

    2005-01-01

    @@ 1 Introduction The objective of the present study was to investigate the response of rat myocardial scar tissue to type Ⅰ collagen-glycosaminoglycan (GAG) tissue engineering scaffolds, and to assess the feasibility of using a collagenGAG scaffold as a delivery vehicle for bone marrow-derived mesenchymal stem cells. The benefits of employing the collagen-GAG scaffold for this application include the following: (1) the large surface area of the three-dimensional sponge-like material allows for the delivery of a high cell density to the infarct site; (2) the scaffold allows for the localization and retention of the cells at the site of implantation; (3) the tissue response to the scaffold may promote angiogenesis at the implant site.

  3. Biphasic calcium phosphate nano-composite scaffolds reinforced with bioglass provide a synthetic alternative to autografts in a canine tibiofibula defect model

    Institute of Scientific and Technical Information of China (English)

    Tang Dezhi; Xu Guohua; Yang Zhou; Holz Jonathan; Ye Xiaojian; Cai Shu; Yuan Wen

    2014-01-01

    Background Bone grafting is commonly used to repair bone defects.As the porosity of the graft scaffold increases,bone formation increases,but the strength decreases.Early attempts to engineer materials were not able to resolve this problem.In recent years,nanomaterials have demonstrated the unique ability to improve the material strength and toughness while stimulating new bone formation.In our previous studies,we synthesized a nano-scale material by reinforcing a porous β-tricalcium phosphate (β-TCP) ceramic scaffold with Na2O-MgO-P2O5-CaO bioglass (β-TCP/BG).However,the in vivo effects of the β-TCP/BG scaffold on bone repair remain unknown.Methods We investigated the efficacy of β-TCP/BG scaffolds compared to autografts in a canine tibioflbula defect model.The tibioflbula defects were created in the right legs of 12 dogs,which were randomly assigned to either the scaffold group or the autograft group (six dogs per group).Radiographic evaluation was performed at 0,4,8,and 12 weeks post-surgery.The involved tibias were extracted at 12 weeks and were tested to failure via a three-point bending.After the biomechanical analysis,specimens were subsequently processed for scanning electron microscopy analysis and histological evaluations.Results Radiographic evaluation at 12 weeks post-operation revealed many newly formed osseous calluses and bony unions in both groups.Both the maximum force and break force in the scaffold group (n=6) were comparable to those in the autograft group (n=6,P >0.05),suggesting that the tissue-engineered bone repair achieved similar biomechanical properties to autograft bone repair.At 12 weeks post-operation,obvious new bone and blood vessel formations were observed in the artificial bone of the experimental group.Conclusions The results demonstrated that new bone formation and high bone strength were achieved in the β-TCP/ BG scaffold group,and suggested that the β-TCP/BG scaffold could be used as a synthetic alternative to

  4. Peer coaching to support writing development.

    Science.gov (United States)

    Peinhardt, Rebecca D; Hagler, Debra

    2013-01-01

    Learning to write well is a difficult but worthwhile effort, as nurses often need to communicate effectively through writing. A range of interventions has been used to promote effective writing by nursing students, but little outcome evidence, beyond student and faculty satisfaction, has been reported. A peer coaching assignment in a senior-level RN-to-BSN nursing complex care theory course required students to complete a scaffolded review of a peer's draft paper and provide constructive feedback to the peer. A masked and a nonmasked faculty rater (with interrater reliability of >0.99) scored the drafts and final papers. The mean scores of the participants' papers improved dramatically (M(change) = 14.24, SD(change) = 15.26, t [28] = 5.03, p = 0 .000, 95% CI(diff) [8.44, 20.05]), after peer feedback. Students' responses to the intervention included identification of learning outcomes and the benefits and challenges of providing and receiving peer feedback.

  5. A novel nano-structured porous polycaprolactone scaffold improves hyaline cartilage repair in a rabbit model compared to a collagen type I/III scaffold: in vitro and in vivo studies.

    Science.gov (United States)

    Christensen, Bjørn Borsøe; Foldager, Casper Bindzus; Hansen, Ole Møller; Kristiansen, Asger Albæk; Le, Dang Quang Svend; Nielsen, Agnete Desirée; Nygaard, Jens Vinge; Bünger, Cody Erik; Lind, Martin

    2012-06-01

    To develop a nano-structured porous polycaprolactone (NSP-PCL) scaffold and compare the articular cartilage repair potential with that of a commercially available collagen type I/III (Chondro-Gide) scaffold. By combining rapid prototyping and thermally induced phase separation, the NSP-PCL scaffold was produced for matrix-assisted autologous chondrocyte implantation. Lyophilizing a water-dioxane-PCL solution created micro and nano-pores. In vitro: The scaffolds were seeded with rabbit chondrocytes and cultured in hypoxia for 6 days. qRT-PCR was performed using primers for sox9, aggrecan, collagen type 1 and 2. In vivo: 15 New Zealand White Rabbits received bilateral osteochondral defects in the femoral intercondylar grooves. Autologous chondrocytes were harvested 4 weeks prior to surgery. There were 3 treatment groups: (1) NSP-PCL scaffold without cells. (2) The Chondro-Gide scaffold with autologous chondrocytes and (3) NSP-PCL scaffold with autologous chondrocytes. Observation period was 13 weeks. Histological evaluation was made using the O'Driscoll score. In vitro: The expressions of sox9 and aggrecan were higher in the NSP-PCL scaffold, while expression of collagen 1 was lower compared to the Chondro-Gide scaffold. In vivo: Both NSP-PCL scaffolds with and without cells scored significantly higher than the Chondro-Gide scaffold when looking at the structural integrity and the surface regularity of the repair tissue. No differences were found between the NSP-PCL scaffold with and without cells. The NSP-PCL scaffold demonstrated higher in vitro expression of chondrogenic markers and had higher in vivo histological scores compared to the Chondro-Gide scaffold. The improved chondrocytic differentiation can potentially produce more hyaline cartilage during clinical cartilage repair. It appears to be a suitable cell-free implant for hyaline cartilage repair and could provide a less costly and more effective treatment option than the Chondro-Gide scaffold with cells.

  6. Building competency in the novice allied health professional through peer coaching.

    Science.gov (United States)

    Ladyshewsky, Richard K

    2010-01-01

    The development of competence is an ongoing journey, and one that is particularly punctuated in the early part of a health professional's career. These novice practitioners need to recognize that the challenges inherent in building competency might be resolved more readily by engaging with peers. This paper outlines what it means to be a novice practitioner, and how peer coaching can be used to support professional development in the allied health sciences. An overview of the reasoning process and how peer coaching and experiential learning can be used to build competence is described. A structured and formal approach to peer coaching is outlined in this paper. Novices who embrace this professional development strategy will find the model of coaching practice and underlying strategies described in this paper beneficial to their experience. The importance of formalizing the process and the underlying communication skills needed for coaching are described in detail with accompanying examples to illustrate the model in practice.

  7. Hyper-elastic modeling and mechanical behavior investigation of porous poly-D-L-lactide/nano-hydroxyapatite scaffold material.

    Science.gov (United States)

    Han, Quan Feng; Wang, Ze Wu; Tang, Chak Yin; Chen, Ling; Tsui, Chi Pong; Law, Wing Cheung

    2017-07-01

    Poly-D-L-lactide/nano-hydroxyapatite (PDLLA/nano-HA) can be used as the biological scaffold material in bone tissue engineering as it can be readily made into a porous composite material with excellent performance. However, constitutive modeling for the mechanical response of porous PDLLA/nano-HA under various stress conditions has been very limited so far. In this work, four types of fundamental compressible hyper-elastic constitutive models were introduced for constitutive modeling and investigation of mechanical behaviors of porous PDLLA/nano-HA. Moreover, the unitary expressions of Cauchy stress tensor have been derived for the PDLLA/nano-HA under uniaxial compression (or stretch), biaxial compression (or stretch), pure shear and simple shear load by using the theory of continuum mechanics. The theoretical results determined from the approach based on the Ogden compressible hyper-elastic constitutive model were in good agreement with the experimental data from the uniaxial compression tests. Furthermore, this approach can also be used to predict the mechanical behaviors of the porous PDLLA/nano-HA material under the biaxial compression (or stretch), pure shear and simple shear. Copyright © 2017 Elsevier Ltd. All rights reserved.

  8. Coaching the Mentor: Facilitating Reflection and Change

    Science.gov (United States)

    Gordon, Stephen P.; Brobeck, Sonja R.

    2010-01-01

    The purpose of this study is to explore the process of coaching a mentor of experienced teachers. In particular, we sought to determine if coaching would help a mentor to compare her espoused beliefs about mentoring to her mentoring behaviors and possibly resolve any dissonance. The mentor and coach (the co-researchers) participated in a platform…

  9. Toward a Theory of Coaching Paradox

    Science.gov (United States)

    Barnson, Steven C.

    2014-01-01

    Multiple tensions exist as part of the coaching process. How a coach responds to these tensions is a fundamental determinant of an athlete or team's fate. In today's highly competitive, socially demanding, and ever-changing sports environment, and as the expectations on coaches become more complex, the paradox becomes a critical lens to…

  10. Developing Reflection and Teaching through Peer Coaching.

    Science.gov (United States)

    Harlin, Rebecca P.

    2000-01-01

    This newsletter highlights the development of reflection and teaching skills in preservice teachers via peer coaching. Peer coaching in preservice programs can serve as an induction program, while with experienced teachers it can serve as professional development. Research suggests that peer coaching contributes to the development of effective…

  11. Preservice Teacher Observations in Peer Coaching

    Science.gov (United States)

    Jenkins, Jayne M.; Garn, Alex; Jenkins, Patience

    2005-01-01

    The purpose of this study was to identify what and how preservice teachers observe when peer coaching during an early field experience. Twenty-three male and 14 female preservice teachers trained in peer coaching participated in the study. Coaches observed a peer partner teach five 40-min lessons to small groups of elementary or junior high school…

  12. Preservice Teachers' PCK Development during Peer Coaching.

    Science.gov (United States)

    Jenkins, Jayne M.; Veal, Mary Lou

    2002-01-01

    Examined preservice teacher knowledge during peer coaching activities, noting how the roles of teacher and coach contributed to the development of teacher knowledge during an elementary physical education field-based methods course. Pedagogical content knowledge developed differently in the teaching and coaching roles. Growth in the teaching role…

  13. Assessing the Cost of Instructional Coaching

    Science.gov (United States)

    Knight, David S.

    2012-01-01

    School-based instructional coaching is an increasingly popular approach to professional development used to support in-service learning for teachers. However, little is known about the cost of coaching. The following study aims to fill this gap. First, the study describes a framework for measuring the cost of an instructional coaching program;…

  14. Content-Focused Coaching: Five Key Practices

    Science.gov (United States)

    Gibbons, Lynsey K.; Cobb, Paul

    2016-01-01

    Many districts are using content-focused coaching as a strategy to provide job-embedded support to teachers. However, the current coaching literature provides little guidance on what coaches need to know and be able to do to engage teachers in activities that will support their development of ambitious instructional practices. Furthermore, little…

  15. Professional Development: Identifying Effective Instructional Coaching Activities

    Science.gov (United States)

    Mannino, Gina

    2014-01-01

    The purpose of this study was to identify the instructional coaching activities most used by instructional coaches in southeast Texas school districts and to test if there was a relationship between the use of instructional coaching and perceived improvement in the instructional practices of teachers and student achievement. The participants for…

  16. Instructional Coaching: Leadership Styles and Practices

    Science.gov (United States)

    Pruett, Maurisa M.

    2013-01-01

    Principals are traditionally the instructional leaders of a school. However, instructional coaching moves the emphasis from principals to instructional coaches by charging instructional coaches with improving the effectiveness of teachers who are critical to ensuring the successful education of a student. This research analyzed the leadership…

  17. The Magic of Coaching: Art Meets Science

    Science.gov (United States)

    Froelich, Kathy S.; Puig, Enrique A.

    2007-01-01

    There is so much more that goes into literacy coaching that we do not think about when working with colleagues. When we think about literacy coaching, we think about someone who comes into our classrooms and provides support for our instruction. High-quality literacy coaching requires that there be superior levels of overt assessment and covert…

  18. Toward a Theory of Coaching Paradox

    Science.gov (United States)

    Barnson, Steven C.

    2014-01-01

    Multiple tensions exist as part of the coaching process. How a coach responds to these tensions is a fundamental determinant of an athlete or team's fate. In today's highly competitive, socially demanding, and ever-changing sports environment, and as the expectations on coaches become more complex, the paradox becomes a critical lens to…

  19. Business Management Coaching: Focusing on Entrepreneur's Current Position and Aims

    Science.gov (United States)

    Cheah, Kheng T.

    2012-01-01

    One-to-one business coaching over 6 months was provided to nine clients in Hawaii to help them acquire business transition skills. The STARS model was used to determine the individual business situation and to explore suitable leadership strategies to move forward. Systematically, each client developed a business model, business strategies, a…

  20. Business Management Coaching: Focusing on Entrepreneur's Current Position and Aims

    Science.gov (United States)

    Cheah, Kheng T.

    2012-01-01

    One-to-one business coaching over 6 months was provided to nine clients in Hawaii to help them acquire business transition skills. The STARS model was used to determine the individual business situation and to explore suitable leadership strategies to move forward. Systematically, each client developed a business model, business strategies, a…

  1. Problematizing health coaching for chronic illness self-management.

    Science.gov (United States)

    Howard, Lisa M; Ceci, Christine

    2013-09-01

    To address the growing costs associated with chronic illness care, many countries, both developed and developing, identify increased patient self-management or self-care as a focus of healthcare reform. Health coaching, an implementation strategy to support the shift to self-management, encourages patients to make lifestyle changes to improve the management of chronic illness. This practice differs from traditional models of health education because of the interactional dynamics between nurse and patient, and an orientation to care that ostensibly centres and empowers patients. The theoretical underpinnings of coaching reflect these differences, however in its application, the practices arranged around health coaching for chronic illness self-management reveal the social regulation and professional management of everyday life. This becomes especially problematic in contexts defined by economic constraint and government withdrawal from activities related to the 'care' of citizens. In this paper, we trace the development of health coaching as part of nursing practice and consider the implications of this practice as an emerging element of chronic illness self-management. Our purpose is to highlight health coaching as an approach intended to support patients with chronic illness and at the same time, problematize the tensions contained in (and by) this practice.

  2. The Coaching Process in Football – A qualitative perspective

    Directory of Open Access Journals (Sweden)

    Hugo Sarmento

    2014-03-01

    Full Text Available This study aims to understand what the coaches observe in the game, and how they evaluate and make their intervention based on this observation. The participants were 8 experienced First Portuguese League coaches. Semi-structured interviews were carried out and the data were analysed through the technique of content analysis. The software QSR NVivo 9 was used in coding the transcripts of the interviews. According to these coaches to effectively observe and analyze the game it is crucial to have a detailed knowledge of the game and of the individual characteristics of players. They consider that the most important aspects to observe in the game are: i the 4 moments of the game; ii set pieces; iv individual characteristics of players; v random aspects of the game. Coaches have the perception that over the years their observation has become more effective and they value different aspects in the game. They consider that the factors responsible for the evolution of their observations are: i the accumulated experience; ii a better knowledge of the game; iii the academic formation. These coaches evaluate the teams in a general way focusing mainly on strengths and weaknesses and they follow a specific logic of prioritization for the evaluation of these aspects that is based mainly, in their model of the game. The intervention is done mainly through the adaptation of the training exercises, but also through visual strategies (movies, photos, etc. and meetings (individual, by sector or in group.

  3. Investigating the effects of cognitive apprenticeship-based instructional coaching on science teaching efficacy beliefs

    Science.gov (United States)

    Cooper, Teo O. H.

    The overall purpose of this collected papers dissertation was to examine the utility of a cognitive apprenticeship-based instructional coaching (CAIC) model for improving the science teaching efficacy beliefs (STEB) of preservice and inservice elementary teachers. Many of these teachers perceive science as a difficult subject and feel inadequately prepared to teach it. However, teacher efficacy beliefs have been noted as the strongest indicator of teacher quality, the variable most highly correlated with student achievement outcomes. The literature is scarce on strong, evidence-based theoretical models for improving STEB. This dissertation is comprised of two studies. STUDY #1 was a sequential explanatory mixed-methods study investigating the impact of a reformed CAIC elementary science methods course on the STEB of 26 preservice teachers. Data were collected using the Science Teaching Efficacy Belief Instrument (STEBI-B) and from six post-course interviews. A statistically significant increase in STEB was observed in the quantitative strand. The qualitative data suggested that the preservice teachers perceived all of the CAIC methods as influential, but the significance of each method depended on their unique needs and abilities. STUDY #2 was a participatory action research case study exploring the utility of a CAIC professional development program for improving the STEB of five Bahamian inservice teachers and their competency in implementing an inquiry-based curriculum. Data were collected from pre- and post-interviews and two focus group interviews. Overall, the inservice teachers perceived the intervention as highly effective. The scaffolding and coaching were the CAIC methods portrayed as most influential in developing their STEB, highlighting the importance of interpersonal relationship aspects in successful instructional coaching programs. The teachers also described the CAIC approach as integral in supporting their learning to implement the new inquiry

  4. Scaffolding students’ assignments

    DEFF Research Database (Denmark)

    Slot, Marie Falkesgaard

    2013-01-01

    This article discusses scaffolding in typical student assignments in mother tongue learning materials in upper secondary education in Denmark and the United Kingdom. It has been determined that assignments do not have sufficient scaffolding end features to help pupils understand concepts and build...... objects. The article presents the results of empirical research on tasks given in Danish and British learning materials. This work is based on a further development of my PhD thesis: “Learning materials in the subject of Danish” (Slot 2010). The main focus is how cognitive models (and subsidiary explicit...... learning goals) can help students structure their argumentative and communica-tive learning processes, and how various multimodal representations can give more open-ended learning possibilities for collaboration. The article presents a short introduction of the skills for 21st century learning and defines...

  5. Using Hydroxyapatite-Gelatin Scaffold Seeded with Bone Marrow Stromal Cells as a Bone Graft in Animal Model

    Directory of Open Access Journals (Sweden)

    Mahsoumeh Behruzi

    2016-11-01

    Full Text Available Background: Nowadays, composite scaffolds with some desired characteristics have a numerous applications in hard tissue engineering. In present study, the role of composite hydroxyapatite - gelatin was examined in both alone and coated by Bone Marrow Stromal Stem Cells (BMSCs conditions in the process of healing bone defects, reduction of time repair and the immune response of body by laboratory studies (in vitro and in vivo on the skull of adult rats as well. Materials and Methods: In present study, nano-hydroxyapatite powder and gelatin were used to provide nano-hydroxyapatite-gelatin scaffold, BMSCs were isolated by Flushing method. Fifteen adult male Wistar rats weighing 250-200 g were used. Studing groups included bone defect with hydroxyapatite-gelatin scaffold, bone defect with hydroxyapatite-gelatin with BMSCs and bone defects without scaffolding as a controlwhich were examined after a week and a month after surgery. MTT assay was used in order to evaluation of biocompatibility of scaffolds. To confirm the healing progress trend and the presence of inflammatory cells we used hematoxylin-eosin and we used Masson's trichrome staining in order to study of synthesis of collagen fibers. Results: The results of MTT showed that the scaffold has no toxic effects on stromal cells. The first signs of ossification in hydroxyapatite-gelatin with BMSCs cells group, appeared in the first week. However, in the fourth week, ossification was completed and the scaffold remaining was found as embedded islands in the spongy bone tissue. The greatest number of lymphocytes was observed in the experimental group after one week of planting scaffold. Conclusion: it seems that Hydroxyapatite-gelatin scaffold coated with BMSCs cells has a potential role in the healing process of bone and it can be suitable as a therapeutic strategy to repair extensive bone lesions.

  6. Cyclooxygenases (COX-1 and COX-2) for tissue engineering of articular cartilage--from a developmental model to first results of tissue and scaffold expression.

    Science.gov (United States)

    Brochhausen, Christoph; Zehbe, Rolf; Gross, Ulrich; Libera, Jeanette; Schubert, Helmut; Nüsing, Rolf M; Klaus, Günter; Kirkpatrick, C James

    2008-01-01

    Tissue engineering of articular cartilage remains an ongoing challenge. Since tissue regeneration recapitulates ontogenetic processes the growth plate can be regarded as an innovative model to target suitable signalling molecules and growth factors for the tissue engineering of cartilage. In the present study we analysed the expression of cyclooxygenases (COX) in a short-term chondrocyte culture in gelatin-based scaffolds and in articular cartilage of rats and compared it with that in the growth plate. Our results demonstrate the strong cellular expression of COX-1 but only a focal weak expression of COX-2 in the seeded scaffolds. Articular cartilage of rats expresses homogeneously COX-1 and COX-2 with the exception of the apical cell layer. Our findings indicate a functional role of COX in the metabolism of articular chondrocytes. The expression of COX in articular cartilage and in the seeded scaffolds opens interesting perspectives to improve the proliferation and differentiation of chondrocytes in scaffold materials by addition of specific receptor ligands of the COX system.

  7. Collagen-GAG Scaffolds Grafted Onto Myocardial Infarcts in a Rat Model:A Delivery Vehicle for Mesenchymal Stem Cells

    Institute of Scientific and Technical Information of China (English)

    Z.; XIANG; R.; LIAO; M.; KELLY; M.; SPECTOR

    2005-01-01

    1 IntroductionThe objective of the present study was to investigate the response of rat myocardial scar tissue to type I collagen-glycosaminoglycan (GAG) tissue engineering scaffolds, and to assess the feasibility of using a collagen-GAG scaffold as a delivery vehicle for bone marrow-derived mesenchymal stem cells. The benefits of employing the collagen-GAG scaffold for this application include the following:(1) the large surface area of the three-dimensional sponge-like material allows for the delivery of ...

  8. Situational Leadership And Diversity Management Coaching Skills

    Directory of Open Access Journals (Sweden)

    Bahaudin G. Mujtaba

    2011-07-01

    Full Text Available Leadership and diversity management have been part of the work life since the beginning of formal organizations and a critical element of globalization. The authors provide an overview of situational leadership and link it to diversity management so the focus can remain on productivity rather than personalities and biases which are part of each society and individual. Based on personal training experiences of the authors, this conceptual and practical paper provides a model to link situational leadership to diversity in the workplace through effective coaching skills.  

  9. Managerial Coaching in Enhancing Employees’ Motivation

    Directory of Open Access Journals (Sweden)

    Azman Ismail

    2016-06-01

    Full Text Available This study aims to measure the relationship between managerial coaching and employees‟ motivation. Survey method was employed to collect survey data via questionnaires distributed to midlevel officers at a military training center in Peninsular Malaysia. The results of hypothesis testing using SmartPLS path model analysis showed two important findings. First, communication did not significantly correlate with employees‟ motivation. Second, management support was significantly correlated with employees‟ motivation. These findings confirmed that communication is not an important determinant of employees‟ motivation, and management support is an important determinant of employees‟ motivation in the studied organizations. Furthermore, discussion, implications and conclusions are also elaborated.

  10. The Wild West of executive coaching.

    Science.gov (United States)

    Sherman, Stratford; Freas, Alyssa

    2004-11-01

    Annual spending on executive coaching in the United States is estimated at 1 billion dollars. Yet information about coaching's effectiveness is scarce and unreliable. No one has yet demonstrated conclusively what qualifies an executive coach or what makes one approach to executive coaching better than another. Barriers to entry are nonexistent--many executive coaches know little about business, and some know little about coaching. The coaching certifications offered by various self-appointed bodies are difficult to assess, and methods of measuring return on investment are questionable. But strategic coaching can provide critical help both to individuals and to organizations. In this article, Stratford Sherman, a senior vice president of Executive Coaching Network, and Alyssa Freas, the founder and CEO, explore the popularity of executive coaching and investigate ways to make the most of the experience. They argue that coaching is inevitably a triangular relationship between the client, the "coachee," and the coach. Its purpose is to produce behavioral change and growth in the coachee for the economic benefit of the client. The best way to maximize the likelihood of good results is to qualify all the people involved. Even so, many triangular relationships continue to generate conflict among all three parties. At the most basic level, coaches serve as suppliers of candor, providing leaders with the objective feedback they need to nourish their growth. Coaching gets executives to slow down, gain awareness, and notice the effects of their words and actions. On a larger scale, the best coaching fosters cultural change for the benefit of the entire organization. It provides a disciplined way for businesses to deepen relationships with their most valued employees while also increasing their effectiveness.

  11. An Evaluation Model for NBA Coaches Based on En-tropy-TOPSIS Method%基于熵权TOPSIS评价法的NBA教练执教水平评价模型研究

    Institute of Scientific and Technical Information of China (English)

    顾洲一; 邱瑾

    2015-01-01

    NBA,which is the best national basketball as-sociation in the world, has brought up generations of ex-cellent coaches. Based on the data from the relevant web-sites of NBA ( www. basketball-reference. com and www. stat-nba. com ) and valid data from Wikipedia, we con-struct a Coaching Evaluation System of NBA( including 4 level I indicators and 12 level II indicators) . We establish the Entropy-TOPSIS model by combining Entropy Method with TOPSIS evaluation method to obtain the value of en-tropies and weights corresponding to 12 level II indica-tors. Then, we define Standard Decision-making Matrix and Standard Weighting Matrix to calculate the composite indices of coaching level. 53 coaches in NBA are analyzed and evaluated. The result shows that the top-ranking coa-ches have extensive experience in finals like Phil Jack-son,Red Auerbach,Pat Riley,Don Nelson,John Kundla, et al. ,while lowly-ranked coaches are lacking of experi-ences in the playoffs including Sam Mitchell, Don Chaney,Red Kerr,Jack McKinney,et al.%NBA作为世界上水平最高的篮球联盟,培养了一批又一批的优秀教练。本文基于NBA的相关网站( basketball-reference. com stat-nba. com)以及维基百科中寻找的有效数据,根据评价指标设计的原则和依据,构建NBA教练执教水平评价指标体系(包括4个一级指标和12个二级指标)。本文以TOPSIS评价法为基础,采用了将熵权法和TOPSIS评价法相结合的思路,建立熵权TOPSIS模型,确定12个二级指标的熵值和权重,构建规范化决策矩阵和加权规范矩阵,计算综合指数,对53名 NBA 教练执教水平进行评价分析。结果显示,在NBA教练执教水平排行榜上,位列前几位的教练分别是Phil Jackson、Red Auerbach、Pat Riley、Don Nelson、John Kundla等拥有丰富总决赛经验的教练,而Sam Mitchell、Don Chaney、Red Kerr、Jack McKin-ney等教练因缺乏季后赛经验排在后几位。

  12. Breaking into the World of Coaching: The Graduate Student Coach.

    Science.gov (United States)

    Zeidler, Tom; Kirch, Michael W.

    A pilot study examined whether there is a "caste system" within the forensics community; what graduate students, faculty coaches, and tournament administrators can do to foster a sense of community and break down the caste system; and the role that formal and informal mentoring can play in this process. A survey was completed by 17…

  13. Transforming Farm Health and Safety: The Case for Business Coaching.

    Science.gov (United States)

    Blackman, Anna; Franklin, Richard C; Rossetto, Allison; Gray, David E

    2015-01-01

    In the U.S. and Australia, agriculture is consistently ranked as one of the most hazardous industries. The cost of injuries and deaths on Australian farms is significant, estimated to be between AU$0.5 billion and AU$1.2 billion per year. Death and injury in agriculture also place a significant financial and social burden on the family and friends of the injured, the community, and the health system. This article proposes that if farmers were to employ coaching in their businesses, they would benefit from advances in safety practices, resulting in associated improvements in overall farm productivity and a reduction in injury costs to the wider community. A coaching model is presented to demonstrate what an effective coaching process would need to include. An agenda for future research areas is also provided.

  14. Individual, team, and coach predictors of players' likelihood to aggress in youth soccer.

    Science.gov (United States)

    Chow, Graig M; Murray, Kristen E; Feltz, Deborah L

    2009-08-01

    The purpose of this study was to examine personal and socioenvironmental factors of players' likelihood to aggress. Participants were youth soccer players (N = 258) and their coaches (N = 23) from high school and club teams. Players completed the Judgments About Moral Behavior in Youth Sports Questionnaire (JAMBYSQ; Stephens, Bredemeier, & Shields, 1997), which assessed athletes' stage of moral development, team norm for aggression, and self-described likelihood to aggress against an opponent. Coaches were administered the Coaching Efficacy Scale (CES; Feltz, Chase, Moritz, & Sullivan, 1999). Using multilevel modeling, results demonstrated that the team norm for aggression at the athlete and team level were significant predictors of athletes' self likelihood to aggress scores. Further, coaches' game strategy efficacy emerged as a positive predictor of their players' self-described likelihood to aggress. The findings contribute to previous research examining the socioenvironmental predictors of athletic aggression in youth sport by demonstrating the importance of coaching efficacy beliefs.

  15. Design considerations and computer modeling related to the development of molecular scaffolds and peptide mimetics for combinatorial chemistry.

    Science.gov (United States)

    Hruby, V J; Shenderovich, M; Lam, K S; Lebl, M

    1996-10-01

    A critical issue in drug discovery utilizing combinatorial chemistry as part of the discovery process is the choice of scaffolds to be used for a proper presentation, in a three-dimensional space, of the critical elements of structure necessary for molecular recognition (binding) and information transfer (agonist/ antagonist). In the case of polypeptide ligands, considerations related to the properties of various backbone structures (alpha-helix, beta-sheets, etc.; phi, psi space) and those related to three-dimensional presentation of side-chain moieties (topography; chi (chi) space) must be addressed, although they often present quite different elements in the molecular recognition puzzle. We have addressed aspects of this problem by examining the three-dimensional structures of chemically different scaffolds at various distances from the scaffold to evaluate their putative diversity. We find that chemically diverse scaffolds can readily become topographically similar. We suggest a topographical approach involving design in chi space to deal with these problems.

  16. Coaching for College Students with ADHD.

    Science.gov (United States)

    Prevatt, Frances

    2016-12-01

    Evidence suggests that ADHD can impair academic achievement in college students and throughout the life span. College students with ADHD are an at-risk population who might benefit from interventions. An offshoot of CBT-oriented therapy that has grown significantly and gained popularity in recent years is ADHD coaching. ADHD coaching is a psychosocial intervention that helps individuals develop skills, strategies, and behaviors to cope with the core impairments associated with ADHD. Most coaching programs are primarily based on a CBT approach and target planning, time management, goal setting, organization, and problem solving. This paper describes ADHD coaching for college students and discusses how coaching is different from standard CBT treatment. This is followed by a review of empirical studies of the effectiveness of ADHD coaching for college students. Finally, some specific considerations and procedures used in coaching are described.

  17. Coaching - fokus på samtalen

    DEFF Research Database (Denmark)

    Coaching – fokus på samtalen præsenterer forskellige filosofiske og teoretiske perspektiver på coachingsamtalen og indeholder desuden analyser af autentiske coachingsamtaler, som finder sted i en organisatorisk kontekst. Bogens kapitler beskæftiger sig med forskellige tilgange til coaching, som de...... i coachingsamtalen. Coaching – fokus på samtalen er den tredje bog i serien om Organisatorisk Coaching. Den er skrevet af konsulenter, ledere og forskere, som arbejder med coaching i private og offentlige organisationer. Coaching – fokus på samtalen kan bruges på mellemlange og videregående...... uddannelser og henvender sig samtidig til ledere, konsulenter og andre forandringsagenter, der arbejder med coaching i en organisatorisk praksis....

  18. Can life coaching improve health outcomes?

    DEFF Research Database (Denmark)

    Ammentorp, Jette; Uhrenfeldt, Lisbeth; Angel, Flemming;

    2013-01-01

    for an overview of the evidence regarding coaching interventions used in patient care, the effect of the interventions, and the quality of the studies published. However, in order to provide a clear definition of the coaching interventions selected for this review, we have found it necessary to distinguish...... between health coaching and life coaching. In this review, we will only focus on the latter method and on that basis assess the health related outcomes of life coaching. METHODS Intervention studies using quantitative or qualitative methods to evaluate the outcome of the life coach interventions were...... suggest that the description and categorisation of the coaching methods are described more comprehensively, and that research into this area is supplemented by a more qualitative approach....

  19. Coaching - fokus på samtalen

    DEFF Research Database (Denmark)

    Coaching – fokus på samtalen præsenterer forskellige filosofiske og teoretiske perspektiver på coachingsamtalen og indeholder desuden analyser af autentiske coachingsamtaler, som finder sted i en organisatorisk kontekst. Bogens kapitler beskæftiger sig med forskellige tilgange til coaching, som de...... i coachingsamtalen. Coaching – fokus på samtalen er den tredje bog i serien om Organisatorisk Coaching. Den er skrevet af konsulenter, ledere og forskere, som arbejder med coaching i private og offentlige organisationer. Coaching – fokus på samtalen kan bruges på mellemlange og videregående...... uddannelser og henvender sig samtidig til ledere, konsulenter og andre forandringsagenter, der arbejder med coaching i en organisatorisk praksis....

  20. Bladder smooth muscle cells on electrospun poly(ε-caprolactone)/poly(l-lactic acid) scaffold promote bladder regeneration in a canine model.

    Science.gov (United States)

    Shakhssalim, Nasser; Soleimani, Masoud; Dehghan, Mohammad M; Rasouli, Javad; Taghizadeh-Jahed, Masoud; Torbati, Peyman M; Naji, Mohammad

    2017-06-01

    Engineering of urinary bladder has been the focus of numerous studies in recent decade. Novel biomaterials, innovative fabrication methods and various modification processes of scaffolds are the critical issues to find supportive matrices. Supportive characteristics of electrospun PCL/PLLA nano-scaffold for bladder augmentation in canine model and the role of bladder cells in regeneration process were appraised. Electrospun PCL/PLLA was fabricated by co-electrospinning of PCL and PLLA. Bladder cells were isolated and transduced with lentiviral particles encoding eGFP and JRed proteins. Electrospun PCL/PLLA was seeded with different bladder cells individually or in co-culture condition. Cell-free and cell-seeded electrospun PCL/PLLA scaffolds (10cm(2)) were surgically implanted in bladders of eight female dogs for three months. To evaluate bladder regeneration, the dogs were sacrificed and their bladders were examined macroscopically and microscopically for presence of tracking proteins, expression of cell-specific markers and histological attributes of regenerated tissues. All animals survived the experiment with no complication. In smooth muscle transplanted group complete regeneration and covering of scaffold were observed. Other groups revealed partial regeneration. A well-developed layer of urothelium was formed in all groups in regenerated parts. Smooth muscle transplanted group showed the most developed muscle layer. Regenerated tissue demonstrated typical expression of cell-specific markers. No expression of eGFP and JRed was observed. Electrospun PCL/PLLA scaffold with proper handling, suture retention, nano-sized surface features, maintenance of normal phenotype of cells and minimal adverse effects in body can be a supportive substrate for bladder wall regeneration when seeded with bladder smooth muscle cells. Copyright © 2017 Elsevier B.V. All rights reserved.

  1. Examinations of a new long-term degradable electrospun polycaprolactone scaffold in three rat abdominal wall models

    DEFF Research Database (Denmark)

    Jangö, Hanna; Gräs, Søren; Christensen, Lise

    2017-01-01

    Alternative approaches to reinforce native tissue in reconstructive surgery for pelvic organ prolapse are warranted. Tissue engineering combines the use of a scaffold with the regenerative potential of stem cells and is a promising new concept in urogynecology. Our objective was to evaluate whether....... Properties of the new neo-tissue construct must be evaluated at the time of full degradation of the scaffold before its possible clinical value in pelvic organ prolapse surgery can be evaluated....

  2. Micromechanical finite element modeling and experimental characterization of the compressive mechanical properties of polycaprolactone:hydroxyapatite composite scaffolds prepared by selective laser sintering for bone tissue engineering

    Science.gov (United States)

    Eshraghi, Shaun; Das, Suman

    2012-01-01

    Bioresorbable scaffolds with mechanical properties suitable for bone tissue engineering were fabricated from polycaprolactone (PCL) and hydroxyapatite (HA) by selective laser sintering (SLS) and modeled by finite element analysis (FEA). Both solid gage parts and scaffolds having 1-D, 2-D and 3-D orthogonal, periodic porous architectures were made with 0, 10, 20 and 30% HA by volume. PCL:HA scaffolds manufactured by SLS had nearly full density (99%) in the designed solid regions and had excellent geometric and dimensional control. Through optimization of the SLS process, the compressive moduli for our solid gage parts and scaffolds are the highest reported in the literature for additive manufacturing. The compressive moduli of solid gage parts were 299.3, 311.2, 415.5 and 498.3 MPa for PCL:HA loading at 100:0, 90:10, 80:20 and 70:30 respectively. The compressive effective stiffness tended to increase as the loading of HA was increased and the designed porosity was lowered. In the case of the most 3-D porous scaffold, the compressive modulus more than doubled from 14.9 MPa to 36.2 MPa when changing the material from 100:0 to 70:30 PCL:HA. A micromechanical finite element analysis (FEA) model was developed to investigate the reinforcement effect of HA loading on the compressive modulus of the bulk material. Using a first-principles based approach, the random distribution of HA particles in a solidified PCL matrix was modeled for any loading of HA to predict the bulk mechanical properties of the composites. The bulk mechanical properties were also used for FEA of the scaffold geometries. Results of the FEA were found to be in good agreement with experimental mechanical testing. The development of patient and site-specific composite tissue engineering constructs with tailored properties can be seen as a direct extension of this work on computational design, a priori modeling of mechanical properties and direct digital manufacturing. PMID:22522129

  3. Positive Pedagogy for Sport Coaching

    Science.gov (United States)

    Light, Richard L.; Harvey, Stephen

    2017-01-01

    The literature suggests that, despite some challenges in their implementation, player/athlete-centred, inquiry-based approaches to teaching games and coaching team sport can improve game playing ability, increase player/athlete motivation and provide positive affective experiences of learning. A range of these approaches, including Teaching Games…

  4. Virtual coaches for healthy lifestyle

    NARCIS (Netherlands)

    Akker, op den H.J.A.; Klaassen, R.; Nijholt, A.; Esposito, Anna; Jain, Lakhmi C.

    2016-01-01

    Since the introduction of the idea of the software interface agent the question recurs whether these agents should be personified and graphically visualized in the interface. In this chapter we look at the use of virtual humans in the interface of healthy lifestyle coaching systems. Based on theory

  5. Embedded Instructional Coaching: What Works

    Science.gov (United States)

    Habegger, Shelly; Hodanbosi, Philip

    2011-01-01

    How are administrators leveraging the expertise and passion in their buildings? How do they inspire enthusiasm in their teachers and improve student achievement? How do they act as an agent for change? Those are the tasks the authors are given as instructional coaches. In the beginning, they were unsure how to tackle those tasks--or even if it was…

  6. A Primer on Instructional Coaches

    Science.gov (United States)

    Knight, Jim

    2005-01-01

    The pressure to improve the quality of instruction in schools may be higher today than at any other time in the history of U.S. education. To respond to this urgent demand, schools across the nation are hiring instructional coaches (ICs), even though there is little published research that shows what works and what does not work when it comes to…

  7. Strategies for Effective Classroom Coaching

    Science.gov (United States)

    Garbacz, S. Andrew; Lannie, Amanda L.; Jeffrey-Pearsall, Jennifer L.; Truckenmiller, Adrea J.

    2015-01-01

    Although implementation of evidence-based behavioral and instructional practices has been identified as an educational priority, popular methods for increasing implementation of evidence-based practices (i.e., professional development) have not had the desired effect. This article aimed to present frameworks and practices coaches can use with…

  8. Sinn als Thema im Coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2017-01-01

    Die Sinnfrage ist zentral für den Menschen. Warum sollte man deshalb Coaching auf Zielsetzungen und Performance reduzieren? Es erscheint wichtig, den aktuellen gesellschaftlichen Diskurs aufzuweichen, der den einzelnen zu Selbstdisziplinierung zwingt und zu Depression, Selbstzweifel, Burn-out und...

  9. The Coach's Role in Alcohol/Drug Prevention.

    Science.gov (United States)

    Bakker, Richard

    A 1989 National Youth Sports Coaches Association survey of about 1,200 youth aged 10-14 indicated that young athletes identify somewhat with their drug-using athlete models. Forty-three percent of respondents felt that steroids are not harmful if properly used, and 45% felt that steroids were likely to increase their athletic performance. Steroids…

  10. Does playing experience improve coaching? An exploratory study of perceptual-cognitive skill in soccer coaches

    Directory of Open Access Journals (Sweden)

    Anna eGrundel

    2013-03-01

    Full Text Available In many sports, it is common for top coaching positions to be held by former players; however, despite the natural progression in many sports for skilled players to become high-level coaches, we have little understanding of how playing may develop useful skills for coaching. In this study we considered perceptual-cognitive skill across groups of high and low skilled soccer players and soccer coaches. A range of perceptual-cognitive variables was measured in an attempt to capture the diverse skills related to expertise in sport and coaching. Generally, results highlighted similarities between coaches and players on some tasks and differences on others.

  11. Coaching Discourse: Supporting Teachers' Professional Learning

    Science.gov (United States)

    Heineke, Sally F.

    2013-01-01

    Although coaching is used in many schools to facilitate teachers' professional learning, few studies look closely at coaching discourse. Exploring how coaching facilitates teachers' professional development, this study used tape-recorded coaching sessions and individual post-interviews to examine the one-on-one coaching interactions of 4…

  12. Case Study: eCoaching in a Corporate Environment

    Science.gov (United States)

    Warner, Teri L. C.

    2012-01-01

    This qualitative particularistic case study was an exploration and evaluation of an online, asynchronous, non-human coaching system called an "eCoaching system." Developed by the researcher, the eCoaching system combined performance coaching with the latest technologies in eLearning. The coaching was based on the appreciative inquiry approach, and…

  13. Football Coaches' Practical Sense of Talent. A Qualitative Study of Talent Identification in Danish National Youth Team Football

    DEFF Research Database (Denmark)

    Christensen, Mette Krogh

    are used to explore the focus area. The results are grouped in three major themes, which characterize core elements of the coaches' practical sense: 1) visual experience and pattern recognition, 2) recognition of individual paths and personal styles, and 3) a model of top-level football coaches......' classificatory schemes. Conclusively, the study supports the theory that talent identification in top-level football is strongly connected to the coach's practical sense of the game and taste for football talents. Furthermore, the study points at the importance of being aware of the person "behind" the coach...

  14. Neuronal Networks on Nanocellulose Scaffolds.

    Science.gov (United States)

    Jonsson, Malin; Brackmann, Christian; Puchades, Maja; Brattås, Karoline; Ewing, Andrew; Gatenholm, Paul; Enejder, Annika

    2015-11-01

    Proliferation, integration, and neurite extension of PC12 cells, a widely used culture model for cholinergic neurons, were studied in nanocellulose scaffolds biosynthesized by Gluconacetobacter xylinus to allow a three-dimensional (3D) extension of neurites better mimicking neuronal networks in tissue. The interaction with control scaffolds was compared with cationized nanocellulose (trimethyl ammonium betahydroxy propyl [TMAHP] cellulose) to investigate the impact of surface charges on the cell interaction mechanisms. Furthermore, coatings with extracellular matrix proteins (collagen, fibronectin, and laminin) were investigated to determine the importance of integrin-mediated cell attachment. Cell proliferation was evaluated by a cellular proliferation assay, while cell integration and neurite propagation were studied by simultaneous label-free Coherent anti-Stokes Raman Scattering and second harmonic generation microscopy, providing 3D images of PC12 cells and arrangement of nanocellulose fibrils, respectively. Cell attachment and proliferation were enhanced by TMAHP modification, but not by protein coating. Protein coating instead promoted active interaction between the cells and the scaffold, hence lateral cell migration and integration. Irrespective of surface modification, deepest cell integration measured was one to two cell layers, whereas neurites have a capacity to integrate deeper than the cell bodies in the scaffold due to their fine dimensions and amoeba-like migration pattern. Neurites with lengths of >50 μm were observed, successfully connecting individual cells and cell clusters. In conclusion, TMAHP-modified nanocellulose scaffolds promote initial cellular scaffold adhesion, which combined with additional cell-scaffold treatments enables further formation of 3D neuronal networks.

  15. A Teaching Model for Scaffolding 4th Grade Students' Scientific Explanation Writing

    Science.gov (United States)

    Yang, Hsiu-Ting; Wang, Kuo-Hua

    2014-01-01

    Improving students scientific explanations is one major goal of science education. Both writing activities and concept mapping are reported as effective strategies for enhancing student learning of science. The purpose of this study was to examine the effect of a teaching model, named the DCI model, which integrates a Descriptive explanation…

  16. SPORT NUTRITION KNOWLEDGE OF COACHES

    Directory of Open Access Journals (Sweden)

    Ivan Vasiljević

    2014-06-01

    Full Text Available Introduction: Decades of research support the theory that when there are sports competitions the question of what to eat and drink in order to enhance sport performance. Nutrition is one of the most important factors in achieving top performance athletes. According to most studies conducted in the world's top athletes receive information from their coaches when it comes to sports nutrition, especially of the coaches involved in fitness training. (Burns, Schiller, Merrick & Wolf, 2004.The aim of this study was to determine the knowledge of sports nutrition in sports coaching. Mthods: The sample was composed of 30 licensed coaches from Montenegro (football, handball, basketball, volleyball, athletics and tennis. Knowledge of sports nutrition was tested by means of a standardized questionnaire. The questionnaire was designed to determine the knowledge manager on sports nutrition, the ingredients that are necessary in order to provide a sufficient amount of energy to training and competition, the dietary supplements, meal prior to the competition as well as dehydration and rehydration during training and competition. The survey was anonymous. The data were analyzed by statistical methods, using the statistical software STATISTICA for WINDOWS. Results: According to the results as a whole, it can be concluded that the trainer's knowledge of sports nutrition at a satisfactory level. Out of 600 responses was achieved 469 correct answers, or 78.1%. However, when looking at individual responses then satisfaction with the relative high percentage loss since the observed large gaps on very important issues related to sports nutrition. Discussion: By analyzing and comparing research results (Matkovic, Prince & Cigrovski, 2006 that in a sample of 56 coaches basketball and skiing, received 77.8% of correct answers and insight into the results of our study, it is clear that the results of the approximate value of both work, which is an indicator of quality

  17. Role Behavior of the Coach and the Participants as Essential for the Results of Individual Coaching

    DEFF Research Database (Denmark)

    Pedersen, Louise Møller

    2015-01-01

    Background: Individual coaching has become a popular intervention tool to increase manager’s (named coaches) affective commitment, competences and effectiveness in conducting healthy organizational changes. The aim of this chapter is to explore the influence of the role behavior of the coach...... succeeded and supported substantial changes in the Company’s approach to safety. The safety manager solved 69% of the coaching tasks. However, the safety manager did not change her role behavior substantially and this intervention was categorized as partly failed. In this case, the role behaviors...... of the coach and the safety manager and the power relation between these lead to implementation failure. Lessons learned and possible solutions: Role behaviors of the coach and the participants are important for the implementation of individual coaching interventions. The theory of individual coaching needs...

  18. A RESEARCH ON HEALTHY LIVING BEHAVIORS OF ARCHERY COACHES AND BOXING COACHES

    Directory of Open Access Journals (Sweden)

    Ziya Bahadır

    2014-07-01

    Full Text Available The aim of the research was to assess healthy living behaviors of archery coaches and boxing coaches in terms of sportive branch, sportive experience and gender. The study was conducted with boxing coaches (n=119 and archery coaches (n=131. As the data collection tool; “ The Health - Promoting Lifestyle Profile II (HPLP - II which was developed by Walker et al . and validity and reliability tests of which were performed by Bahar et al . (2008 was employed. In the study; it was found out that mean score of boxing coaches on P hysical activity subscale was higher than archery coaches . Besides; no statistically significant difference s existed between archery coaches and boxing coaches in terms of gender and sportive experience.

  19. Handball coaches' perceptions about the value of working competences according to their coaching background.

    Science.gov (United States)

    Mesquita, Isabel; Borges, Mario; Rosado, Antonio; Souza, Adriano De

    2011-01-01

    The purpose of this study was to analyze the value attributed to given working competences, by Portuguese handball coaches according to their coaching background, certification level, coaching experience, and level of education. A sample of 207 handball coaches responded to a questionnaire which included demographic characteristics and a scale focused on perceptions of the level of importance attributed to working competences. Data analysis included an exploratory factorial analysis applying Maximum Likelihood Factoring (MLF) and Oblimin rotation. These factors were submitted to a One-way ANOVA and Tukey's post hoc multiple comparisons to analyse coaches' perceptions according to their coaching background. A six factor solution was found where three major domains of competences were highlighted; the first one related to training and competition (e.g. planning and conducting the training, team administration in competition, annual and multi-annual planning, and coaching methodology); the second one related to social and cultural issues and management (e.g. implementation of youth sport development projects, team leadership and coach education) and the third one related to the cognitive background (meta-cognitive competences). The importance ascribed to some working competences was influenced by their coaching experience and certification level. Highly experienced and qualified coaches perceived competences of everyday practice, social, cultural and management issues related to training and competition as more important than the other coaches. This study suggests the need to consider some working competences, until now not explicitly present in the Portuguese coaching education curriculum which could enable coaches to choose the best way to practice/work in a manner that will foster and support their professional development. Key pointsThree major domains of competences were highlighted by Portuguese handball coaches. The first one related to training and competition

  20. The nurse manager: change agent, change coach?

    Science.gov (United States)

    Stefancyk, Amanda; Hancock, Beverly; Meadows, Mary T

    2013-01-01

    Change in today's health care landscape is a daily, if not hourly, reality. The nurse manager must have strong leadership skills to navigate through change with a focus on the patient and the provision of safe and reliable care. The historical term for those leading change is "change agent." In this article, the authors introduce the idea of a change coach, building on the nurse manager foundational skill of coaching and weaving this concept into the manager's role in change. A change coach uses the coaching behaviors including guidance, facilitation, and inspiration to inspire others toward change, altering human capabilities, and supporting and influencing others toward change. An exemplar of the nurse manager's role as a change coach in practice is provided using American Organization of Nurse Executives' Care Innovation and Transformation initiative. It is the agile manager that is able to successfully move between the roles of change agent and change coach to continuously transform the environment and how care is delivered.

  1. Når coaching swinger

    Directory of Open Access Journals (Sweden)

    Line Fredens

    2015-12-01

    Full Text Available This article describes and analyzes the improvisational and innovative process that takes place between pro-fessional musicians during the extraordinary concert. The aim is to draw parallels to the professional coachingconversation in order to examine what new angles this analogy can contribute in proportion to coaching asa practice. In other words, how can an analysis of the musician’s communication during a successful concertshed light on what is happening in a successful professional dialogue.The article contains both empirical data and theory. The empirical data comes to results from a qualitativestudy undertaken in connection with my thesis within the Master of Learning Processes Specializing in Orga-nizational Coaching at Aalborg University, and is based on interviews with five professional orchestra musi-cians from the Royal Danish Orchestra, the Copenhagen Phil and the Danish National Symphony Orchestra

  2. A Teaching Model for Scaffolding 4th Grade Students' Scientific Explanation Writing

    Science.gov (United States)

    Yang, Hsiu-Ting; Wang, Kuo-Hua

    2014-08-01

    Improving students scientific explanations is one major goal of science education. Both writing activities and concept mapping are reported as effective strategies for enhancing student learning of science. The purpose of this study was to examine the effect of a teaching model, named the DCI model, which integrates a Descriptive explanation writing activity, Concept mapping, and an Interpretive explanation writing activity, is introduced in a 4th grade science class to see if it would improve students' scientific explanations and understanding. A quasi-experimental design, including a non-randomized comparison group and a pre- and post-test design, was adopted for this study. An experimental group of 25 students were taught using the DCI teaching model, while a comparison group received a traditional lecture teaching. A rubric and content analysis was used to assess students' scientific explanations. The independent sample t test was used to measure difference in conceptual understanding between the two groups, before and after instruction. Then, the paired t test analysis was used to understand the promotion of the DCI teaching model. The results showed that students in the experimental group performed better than students in the comparison group, both in scientific concept understanding and explanation. Suggestions for using concept mapping and writing activities (the DCI teaching model) in science classes are provided in this study.

  3. Factors influencing how senior nurses and midwives acquire and integrate coaching skills into routine practice: a grounded theory study.

    Science.gov (United States)

    Rafferty, Rae; Fairbrother, Greg

    2015-06-01

    To introduce a theory which describes the process of and explicates the factors moderating, the acquisition and integration of leadership coaching skills into the routine practice of senior nurses and midwives. Organizations invest significant resources in leadership coaching programs to ensure that coaching is embedded as a core function of the manager's role. However, even after training, many managers remain unable to undertake this role successfully. The process by which health professionals translate 'manager as coach' training into successful practice outcomes, has remained largely unexplored. A grounded theory study design. Data, collected between February 2012-May 2013, included in-depth interviews with 20 senior nurses and midwives who had attended a leadership coaching program and analysis of nine reflective practice journals. Multiple researchers coded and analysed the data using constant comparative techniques. The outcomes of coaching training ranged from inappropriate use of the coaching skills through to transformed managerial practice. These outcomes were influenced by the dynamic interaction of three central domains of the emergent theoretical model: pre-existing individual perceptions, program elements and contemporaneous experiences. Interactions occurred within the domains and between them, impacting on activators such as courage, motivation, commitment and confidence. The study offers new insights into how senior nurses and midwives acquire and integrate coaching skills into their routine practice. The process is described as multifactorial and dynamic and has implications for the training design, delivery and organizational support of future leadership coaching programs. © 2015 John Wiley & Sons Ltd.

  4. Assessing the Key to Effective Coaching in Parent-Child Interaction Therapy: The Therapist-Parent Interaction Coding System.

    Science.gov (United States)

    Barnett, Miya L; Niec, Larissa N; Acevedo-Polakovich, I David

    2014-06-01

    This paper describes the initial evaluation of the Therapist-Parent Interaction Coding System (TPICS), a measure of in vivo therapist coaching for the evidence-based behavioral parent training intervention, parent-child interaction therapy (PCIT). Sixty-one video-recorded treatment sessions were coded with the TPICS to investigate (1) the variety of coaching techniques PCIT therapists use in the early stage of treatment, (2) whether parent skill-level guides a therapist's coaching style and frequency, and (3) whether coaching mediates changes in parents' skill levels from one session to the next. Results found that the TPICS captured a range of coaching techniques, and that parent skill-level prior to coaching did relate to therapists' use of in vivo feedback. Therapists' responsive coaching (e.g., praise to parents) was a partial mediator of change in parenting behavior from one session to the next for specific child-centered parenting skills; whereas directive coaching (e.g., modeling) did not relate to change. The TPICS demonstrates promise as a measure of coaching during PCIT with good reliability scores and initial evidence of construct validity.

  5. Investigating the Teaching Styles of Tennis Coaches Using The Spectrum

    National Research Council Canada - National Science Library

    Mitchell Hewitt; Ken Edwards; Sarah Ashworth; Shane Pill

    2016-01-01

    It is unknown what teaching styles (range of pedagogies) coaches are employing during coaching sessions and whether these teaching styles are associated with recommended pedagogical principles advocated by sport and coaching scholars...

  6. Comparison of scaffold-enhanced albumin and n-butyl-cyanoacrylate adhesives for joining of tissue in a porcine model

    Science.gov (United States)

    McNally-Heintzelman, Karen M.; Riley, Jill N.; Heintzelman, Douglas L.

    2003-06-01

    An ex vivo study was conducted to compare the tensile strength of tissue samples repaired using three different techniques: (i) application of a scaffold-enhanced light-activated albumin protein solder, (ii) application of a scaffold-enhanced n-butyl-cyanoacrylate adhesive, and (iii) repair via conventional suture technique. Biodegradable polymer scaffolds of controlled porosity were fabricated with poly(L-lactic-co-glycolic acid) and salt particles using a solvent-casting and particulate-leaching technique. Group I porous scaffolds were doped with protein solder composed of 50%(w/v) bovine serum albumin solder and 0.5mg/ml indocyanine green dye mixed in deionized water, and activated with an 808-nm diode laser. Group II scaffolds were doped with n-butyl-cyanoacrylate, and required no light-activation. No stay sutures were required for Group I or II experiments. Group III repairs were performed using a single 4-0 suture. Thirteen organs were tested ranging from skin to liver to the small intestine, as well as the coronary, pulmonary, carotid, femoral and splenic arteries. Acute breaking strengths were measured and the data were analyzed by Student"s T-test. Using the protein solder of Group I, repairs formed on the ureter were most successful followed by small intestine, sciatic nerve, spleen, atrium, kidney, muscle, skin and ventricle. The strongest vascular repairs were achieved in the carotid artery and femoral artery. Overall, the tensile strength of Group III repairs performed via suture techniques were equivalent in magnitude to that of Group I repairs, however, a larger variance was observed in the suture repair group. Group II repairs utilizing the cyanoacrylate-doped scaffold all performed extremely well. Bonds formed using the Group II adhesive were approximately 30% stronger than Group I and III organ repairs and approximately 20% stronger than Group I and III vascular repairs. Application of the polymer scaffold assists in tissue alignment and reduces

  7. Geometry optimization of a fibrous scaffold based on mathematical modelling and CFD simulation of a dynamic cell culture

    DEFF Research Database (Denmark)

    Tajsoleiman, Tannaz; J. Abdekhodaie, Mohammad; Gernaey, Krist

    2016-01-01

    simulation of cartilage cell culture under a perfusion flow, which allows not only to characterize the supply of nutrients and metabolic products inside a fibrous scaffold, but also to assess the overall culture condition and predict the cell growth rate. Afterwards, the simulation results supported finding...... an optimized design of the scaffold within a new mathematical optimization algorithm that is proposed. The main concept of this optimization routine isto maintain a large effective surface while simultaneously keeping the shear stress levelin an operating range that is expected to be supporting growth...

  8. Coaches Made-in-China

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    China’s latest exportan overseas coaching legion,received lots of attention as well as understanding in Beijing 0n the evening of August 23, one day before the closing of the Beijing Olympics, the Chinese diving team was only one gold short of its dream. The last diving event was the men’s 10 meters platform. The Chinese audience was confident that their divers would secure this gold.

  9. Peer coaching: an overlooked resource.

    Science.gov (United States)

    McQuiston, Linda Smith; Hanna, Kimberly

    2015-01-01

    The authors present an innovative pedagogical approach to peer coaching using senior leadership and junior medical/surgical nursing students within the acute care clinical setting. The collaboration among faculty, staff, and students developed awareness of thinking critically, reasoning, and using effective clinical judgment. Through the use of Lasater's Clinical Judgment Rubric, student reflections provided insight to the program's effectiveness and use of alternative clinical experiences.

  10. Coaching as a Tool Supporting Trainers’ Talents

    Directory of Open Access Journals (Sweden)

    Joanna Mesjasz

    2013-09-01

    Full Text Available Coaching is a well-known term both in sport and business. The purpose of this article is to present coaching as a useful tool for improving the competence of the trainer. The article presents not only theoretical justification but also discusses the results of a pilot project which aim was to support the talents of the national team coaches. The above mentioned project was conducted in 2012 on behalf of the Ministry of Sport.

  11. Scaffolding Online Collaborative Critiquing for Educational Video Production

    Directory of Open Access Journals (Sweden)

    Yiong Hwee Teo

    2009-03-01

    Full Text Available In art, design and media education, learning from examples has been an established way to coach students. To derive greater benefits, teachers should get students to go beyond mere studying of examples. This paper focuses on engaging novice learners in collaborative critiquing of real examples of professional work and past student work in the context of producing an educational video project. While critiquing of such works is not new in art education, there is however scant literature on how to involve students in collaborative critiquing in an online environment involving video projects. A four-step critique model was therefore designed as procedural scaffolding and implemented in an online system, Knowledge Community. A group of Singapore pre-service teachers were engaged in online collaborative critiquing of videos before they embarked on their video projects to illustrate what constitutes good and bad video production. This research points to the value of online collaborative critiquing as a way to facilitate novice designers‟ progress towards expertise. In this environment learners are able to look at problems through multiple perspectives, generate their own solutions and build knowledge that uses the overlapping expertise of the online community.

  12. Towards a Psychology of Coaching: The Impact of Coaching on Metacognition, Mental Health and Goal Attainment.

    Science.gov (United States)

    Grant, Anthony M.

    A theoretical framework for a psychology of coaching was developed. First, the literature on cognitive approaches to coaching, behavioral approaches to coaching, and combinations of the cognitive and behavioral approaches was reviewed. Next, two studies examined the development and validation of a new measure of private self-consciousness called…

  13. Coaches' Coaching Competence in Relation to Athletes' Perceived Progress in Elite Sport

    Science.gov (United States)

    Moen, Frode; Federici, Roger A.

    2013-01-01

    This article looks at whether higher levels of perceived coaching competencies focusing on relational issues, were associated with higher satisfaction among elite athletes with their progress in sport. In order to explore this, we investigated elite athletes' perceptions of their coaches' coaching competence (CCS) and how these perceptions related…

  14. The Manager Coaching in Management

    Directory of Open Access Journals (Sweden)

    Giovanna Díaz Cardozo

    2016-11-01

    Full Text Available The paper aims to make contributions to the Manager Coaching, optimization of management in all areas in which it develops and operates the human being, in that sense, devotes part of its content to the figure of the manager, and Coaching as a leader, manager, director and conductor of processes, identified as largely responsible, you must have knowledge and experience in such functions, in addition to meeting a set of skills that will allow you to efficiently fulfill their activities. It relies on documentary research, in obtaining information were used as data collection instruments, bibliographic documents, which provided the necessary information applied to the particular study. Subsequently content analysis was conducted, investigates informational meanings. To obtain the following conclusions, most relevant is: understand and accept that coaching at international level is a methodology that has managed to grab the attention of big transnational companies, very successful companies, large-scale, relying on the good use and management to achieve the manager, a momentous change in his personality, and the effect on people is responsible in the organization.

  15. Wind Turbine Blade CAD Models Used as Scaffolding Technique to Teach Design Engineers

    Science.gov (United States)

    Irwin, John

    2013-01-01

    The Siemens PLM CAD software NX is commonly used for designing mechanical systems, and in complex systems such as the emerging area of wind power, the ability to have a model controlled by design parameters is a certain advantage. Formula driven expressions based on the amount of available wind in an area can drive the amount of effective surface…

  16. Wind Turbine Blade CAD Models Used as Scaffolding Technique to Teach Design Engineers

    Science.gov (United States)

    Irwin, John

    2013-01-01

    The Siemens PLM CAD software NX is commonly used for designing mechanical systems, and in complex systems such as the emerging area of wind power, the ability to have a model controlled by design parameters is a certain advantage. Formula driven expressions based on the amount of available wind in an area can drive the amount of effective surface…

  17. Immersed Boundary Models for Quantifying Flow-Induced Mechanical Stimuli on Stem Cells Seeded on 3D Scaffolds in Perfusion Bioreactors

    Science.gov (United States)

    Smeets, Bart; Odenthal, Tim; Luyten, Frank P.; Ramon, Herman; Papantoniou, Ioannis; Geris, Liesbet

    2016-01-01

    Perfusion bioreactors regulate flow conditions in order to provide cells with oxygen, nutrients and flow-associated mechanical stimuli. Locally, these flow conditions can vary depending on the scaffold geometry, cellular confluency and amount of extra cellular matrix deposition. In this study, a novel application of the immersed boundary method was introduced in order to represent a detailed deformable cell attached to a 3D scaffold inside a perfusion bioreactor and exposed to microscopic flow. The immersed boundary model permits the prediction of mechanical effects of the local flow conditions on the cell. Incorporating stiffness values measured with atomic force microscopy and micro-flow boundary conditions obtained from computational fluid dynamics simulations on the entire scaffold, we compared cell deformation, cortical tension, normal and shear pressure between different cell shapes and locations. We observed a large effect of the precise cell location on the local shear stress and we predicted flow-induced cortical tensions in the order of 5 pN/μm, at the lower end of the range reported in literature. The proposed method provides an interesting tool to study perfusion bioreactors processes down to the level of the individual cell’s micro-environment, which can further aid in the achievement of robust bioprocess control for regenerative medicine applications. PMID:27658116

  18. The quest for research in the coaching relationship

    DEFF Research Database (Denmark)

    O'Broin, Alanna; Spaten, Ole Michael; Løkken, Lillith Olesen

    2016-01-01

    With the aim to enabling a deeper understanding, of coaching relationship research, this collection of articles is further intended to expand a perspective on approaching evidence-based coaching research in this area and on engaging your coachees in the coaching relationships in your own coaching...... practice. In this article, the contributions from all authors are each reviewed, with a further discussion and integration of themes arising that are germane to future coaching relationship research, and to building effective coaching relationships with coachees....

  19. Chondrocyte outgrowth into a gelatin scaffold in a single impact load model of damage/repair – effect of BMP-2

    Directory of Open Access Journals (Sweden)

    Vincent Thea

    2007-12-01

    Full Text Available Abstract Background Articular cartilage has little capacity for repair in vivo, however, a small number of studies have shown that, in vitro, a damage/repair response can be induced. Recent work by our group has shown that cartilage can respond to single impact load and culture by producing repair cells on the articular surface. The purpose of this study was to identify whether chondrocyte outgrowth into a 3D scaffold could be observed following single impact load and culture. The effect of bone morphogenic-2 (BMP-2 on this process was investigated. Methods Cartilage explants were single impact loaded, placed within a scaffold and cultured for up to 20 days +/- BMP-2. Cell numbers in the scaffold, on and extruding from the articular surface were quantified and the immunohistochemistry used to identify the cellular phenotype. Results Following single impact load and culture, chondrocytes were observed in a 3D gelatin scaffold under all culture conditions. Chondrocytes were also observed on the articular surface of the cartilage and extruding out of the parent cartilage and on to the cartilage surface. BMP-2 was demonstrated to quantitatively inhibit these events. Conclusion These studies demonstrate that articular chondrocytes can be stimulated to migrate out of parent cartilage following single impact load and culture. The addition of BMP-2 to the culture medium quantitatively reduced the repair response. It may be that the inhibitory effect of BMP-2 in this experimental model provides a clue to the apparent inability of articular cartilage to heal itself following damage in vivo.

  20. Intention to use sport concussion guidelines among community-level coaches and sports trainers.

    Science.gov (United States)

    Newton, Joshua D; White, Peta E; Ewing, Michael T; Makdissi, Michael; Davis, Gavin A; Donaldson, Alex; Sullivan, S John; Seward, Hugh; Finch, Caroline F

    2014-09-01

    Sporting bodies have developed guidelines for managing community-level players with suspected concussion in response to international consensus statements on concussion in sport. The purpose of this study was to examine the factors that influence the intended use of concussion guidelines among community-level coaches and sports trainers from two popular football codes in Australia: Australian football and rugby league. Cross-sectional survey. The survey, based on an extended theory of planned behaviour model, was completed by 183 Australian football coaches, 121 Australian football sports trainers, 171 rugby league coaches, and 142 rugby league sports trainers. Personal norms and self-efficacy were significant predictors of intention to use concussion guidelines, although the relationship between self-efficacy and intention was stronger among Australian football coaches than rugby league coaches. Analysis of the salient beliefs that underpin self-efficacy found that coaches, irrespective of football code, felt less familiar (χ(2)=25.70, psports trainers in using the concussion guidelines. At the same time, Australian football personnel, irrespective of their team role, felt that they had insufficient time (χ(2)=8.04, psport concussion guidelines should focus on enhancing self-efficacy and leveraging personal norms. Increasing coaches' familiarity and experience in using the concussion guidelines would also be warranted, as would finding ways to overcome the perceived time and resource constraints identified among Australian football personnel. Copyright © 2013 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

  1. Strength and conditioning practices of National Basketball Association strength and conditioning coaches.

    Science.gov (United States)

    Simenz, Christopher J; Dugan, Carrie A; Ebben, William P

    2005-08-01

    This study describes the results of a survey of the practices of National Basketball Association strength and conditioning (NBA S&C) coaches. The response rate was 68.9% (20 of 29). This survey examines (a) background information, (b) physical testing, (c) flexibility development, (d) speed development, (e) plyometrics, (f) strength/power development, (g) unique aspects, and (h) comments from coaches providing additional information. Results indicate, in part, that coaches assess an average of 7.3 parameters of fitness, with body composition testing being the most common. All coaches used a variety of flexibility development strategies. Results reveal that 17 of 20 (85.0%) of NBA S&C coaches follow a periodization model. Nineteen of 20 coaches (95.0%) indicated that their athletes used Olympic-style lifts. All coaches employed plyometric exercises with their athletes. The squat and its variations, as well as the Olympic-style lifts and their variations, were the most frequently used exercises. The survey serves as a review and a source of applied information and new ideas.

  2. Training meals on wheels volunteers as health literacy coaches for older adults.

    Science.gov (United States)

    Rubin, Donald L; Freimuth, Vicki S; Johnson, Sharon D; Kaley, Terry; Parmer, John

    2014-05-01

    Homebound older adults constitute a "hardly reached" population with respect to health communication. Older adults also typically suffer from health literacy challenges, which put them at increased risk of adverse health outcomes. Suboptimal interactions with providers are one such challenge. Interventions to improve interactive health literacy focus on training consumers/patients in question preparation and asking. Meals on Wheels volunteers are uniquely suited to coach their clients in such interaction strategies. Seventy-three Meals on Wheels volunteers participated in workshops to train as health literacy coaches. The 3- to 4-hour workshops included units on communicating with older adults, on the nature of health literacy, and on the process of interactive health literacy coaching. Participants viewed and discussed videos that modeled the targeted communication behaviors for older adult patients interacting with physicians. They role-played the coaching process. After 9 months, coaches participated in a "booster" session that included videos of ideal coaching practices. Evaluation questionnaires revealed that participants had favorable reactions to the workshops with respect to utility and interest. They especially appreciated learning communication skills and seeing realistic videos. A measure of knowledge about the workshop material revealed a significant increment at posttest. Fidelity of coaching practices with respect to workshop curriculum was confirmed. This training in interactive health literacy for community-based lay volunteers constitutes one way to implement the National Action Plan to Improve Health Literacy for one "hardly reached" population. An online tool kit containing all workshop materials is available.

  3. Executive Function Coaching: Assisting With Transitioning From Secondary to Postsecondary Education.

    Science.gov (United States)

    Goudreau, Shara B; Knight, Melissa

    2015-04-27

    ADHD is defined as impairment to self-regulatory behavior and executive functioning (EF). Many students with other learning disabilities (LD) also experience EF impairments. With the rising number of students with ADHD and LD enrolling in higher education, it is important to recognize the challenges these students face and to provide effective support when transitioning from secondary to postsecondary school. This article examines the challenges of the transition from secondary to postsecondary environments, specifically with the student diagnosed with ADHD and/or other LD. Scholarly articles relating to the efficacy of EF coaching as well as students with ADHD and/or other LD transitioning from secondary to postsecondary school were examined and then considered for best practices in EF coaching. Although the literature supports that EF coaching can improve EF skills, there is a paucity of empirical studies that examines the efficacy of EF coaching (Franklin & Franklin, 2012). The literature also supports the use of EF coaching for students with ADHD and/or LD when transitioning from highschool to college, however limited research has been published to date. With the finite research available in the field of coaching, recommendations for future consideration and research is included to support the need for evidence-based programs. An EF coaching model at Lynn University's Institute for Achievement and Learning (IAL) is discussed and addresses how students are supported during their first year at the University. © 2015 SAGE Publications.

  4. Personel and life coaching In Stephen Palmer & Alison Whybrow (Eds.) Coaching Handbook. New York: Routledge, Francis Taylor

    DEFF Research Database (Denmark)

    Spaten, Ole Michael

    2017-01-01

    Personal coaching and life-coaching psychology is for assisting individuals clarify values, visions and meaning of life, through a systematic process in which the coach facilitates improvement of satisfying and fruitful life experiences and achievement of personal life goals....

  5. Active Ingredients of Instructional Coaching: Developing a Conceptual Framework. R2Ed Working Paper 2015-3

    Science.gov (United States)

    White, Andrew S.; Howell Smith, Michelle; Kunz, Gina M.; Nugent, Gwen C.

    2015-01-01

    Although researchers have explored the impact of instructional coaching and named possible elements believed essential to effective coaching, there has yet to emerge from the literature a coherent model of those essential elements ("active ingredients"). This qualitative study sought to identify those elements through a systematic…

  6. The coach as a fellow-human companion

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2014-01-01

    Objective: The coach-coachee relationship is the essential factor for change and development in coaching. However, in times of hypercomplexity, the relational issue gets a new twist. As a coach, it is no longer enough to facilitate through questions; coaching requires becoming involved in a dialo......Objective: The coach-coachee relationship is the essential factor for change and development in coaching. However, in times of hypercomplexity, the relational issue gets a new twist. As a coach, it is no longer enough to facilitate through questions; coaching requires becoming involved...

  7. A clinically relevant in vivo model for the assessment of scaffold efficacy in abdominal wall reconstruction

    Directory of Open Access Journals (Sweden)

    Jeffrey CY Chan

    2016-12-01

    Full Text Available An animal model that allows for assessment of the degree of stretching or contraction of the implant area and the in vivo degradation properties of biological meshes is required to evaluate their performance in vivo. Adult New Zealand rabbits underwent full thickness subtotal unilateral rectus abdominis muscle excision and were reconstructed with the non-biodegradable Peri-Guard®, Prolene® or biodegradable Surgisis® meshes. Following 8 weeks of recovery, the anterior abdominal wall tissue samples were collected for measurement of the implant dimensions. The Peri-Guard and Prolene meshes showed a slight and obvious shrinkage, respectively, whereas the Surgisis mesh showed stretching, resulting in hernia formation. Surgisis meshes showed in vivo biodegradation and increased collagen formation. This surgical rabbit model for abdominal wall defects is advantageous for evaluating the in vivo behaviour of surgical meshes. Implant area stretching and shrinkage were detected corresponding to mesh properties, and histological analysis and stereological methods supported these findings.

  8. Design, Materials, and Mechanobiology of Biodegradable Scaffolds for Bone Tissue Engineering

    Science.gov (United States)

    Velasco, Marco A.; Narváez-Tovar, Carlos A.; Garzón-Alvarado, Diego A.

    2015-01-01

    A review about design, manufacture, and mechanobiology of biodegradable scaffolds for bone tissue engineering is given. First, fundamental aspects about bone tissue engineering and considerations related to scaffold design are established. Second, issues related to scaffold biomaterials and manufacturing processes are discussed. Finally, mechanobiology of bone tissue and computational models developed for simulating how bone healing occurs inside a scaffold are described. PMID:25883972

  9. Design, materials, and mechanobiology of biodegradable scaffolds for bone tissue engineering.

    Science.gov (United States)

    Velasco, Marco A; Narváez-Tovar, Carlos A; Garzón-Alvarado, Diego A

    2015-01-01

    A review about design, manufacture, and mechanobiology of biodegradable scaffolds for bone tissue engineering is given. First, fundamental aspects about bone tissue engineering and considerations related to scaffold design are established. Second, issues related to scaffold biomaterials and manufacturing processes are discussed. Finally, mechanobiology of bone tissue and computational models developed for simulating how bone healing occurs inside a scaffold are described.

  10. Academic performance and perception of learning following a peer coaching teaching and assessment strategy.

    Science.gov (United States)

    Moore, Catherine; Westwater-Wood, Sarah; Kerry, Roger

    2016-03-01

    Peer coaching has been associated with positive effects on learning. Specifically, these associations have been explored in complex healthcare professions. A social theory of learning has been proposed as a key component of the utility of peer coaching. Further, within the peer coaching model, assessment has been considered as an important driver. Empirical support for these dimensions of the model is lacking. To quantify assessment achievements and explore emergent attitudes and beliefs about learning related to a specific peer coaching model with integrated assessment. A longitudinal study based in a UK Higher Education Institute recorded assessment achievements and surveyed attitudes and beliefs in consecutive Year 1 undergraduate (physiotherapy) students (n = 560) between 2002 and 2012. A 6% improvement in academic achievement was demonstrated following the introduction of a peer coaching learning model. This was increased by a further 5% following the implementation of an integrated assessment. The improvement related to an overall averaged increase of one marking band. Students valued the strategy, and themes relating to the importance of social learning emerged from survey data. Peer coaching is an evidence-based teaching and learning strategy which can facilitate learning in complex subject areas. The strategy is underpinned by social learning theory which is supported by emergent student-reported attitudes.

  11. A study about expectations of the athletes from their coaches resting in Olympics preparation camping Gaziantep

    OpenAIRE

    OZTURK, Huseyin; AVSAR, Omur; CILDIR, Idris

    2015-01-01

    This is a descriptive study, aims to specify the expectations of the athletes from their coaches resting in Olympic Preparation Camp. A total of 120 athletes resting in Olympic Preparation Camp in Gaziantep participated the research including 94 men and 26 women. The expectation scale (ASABÖ, 2008) was used for collecting the data of this research which was used in scientific study done by Güzel before (7). The scale consist of three sub-dimensions; behavior, coaching model and personality. S...

  12. Understanding Expertise from Elite Badminton Coaches

    Science.gov (United States)

    Sheu, Feng-Ru

    2011-01-01

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

  13. Reimagining Khan Analytics for Student Coaches

    Science.gov (United States)

    Cunningham, Jim

    2015-01-01

    In this paper, I describe preliminary work on a new research project in learning analytics at Arizona State University. In conjunction with an innovative remedial mathematics course using Khan Academy and student coaches, this study seeks to measure the effectiveness of visualized data in assisting student coaches as they help remedial math…

  14. A Multidisciplinary Framework of Instructional Coaching

    Science.gov (United States)

    Kurz, Alexander; Reddy, Linda A.; Glover, Todd A.

    2017-01-01

    Across a wide variety of disciplines, coaching has become the universal practice for improving the professional performance of individuals and, consequently, the effectiveness of their organizations. Despite these shared outcomes, the coaching of individuals such as executives, athletes, and teachers features a variety of approaches, each with its…

  15. The Coaching Kaleidoscope Insights from the Inside

    CERN Document Server

    Kets de Vries, Manfred; Korotov, Konstantin; Florent-Treacy, Elizabeth

    2010-01-01

    Through sharing the research methodologies, and describing intervention and change techniques used in leadership development, this book, written by IGLC-INSEAD professors and leadership coaches, contributes to a better understanding of how organizations may go beyond coaching in order to create best places to work

  16. "Safeguarding" Sports Coaching: Foucault, Genealogy and Critique

    Science.gov (United States)

    Garratt, Dean; Piper, Heather; Taylor, Bill

    2013-01-01

    This paper offers a genealogical account of safeguarding in sport. Drawing specifically on Foucault's work, it examines the "politics of touch" in relation to the social and historical formation of child protection policy in sports coaching. While the analysis has some resonance with the context of coaching as a whole, for illustrative…

  17. New Principal Coaching as a Safety Net

    Science.gov (United States)

    Celoria, Davide; Roberson, Ingrid

    2015-01-01

    This study examines new principal coaching as an induction process and explores the emotional dimensions of educational leadership. Twelve principal coaches and new principals--six of each--participated in this qualitative study that employed emergent coding (Creswell, 2008; Denzin, 2005; Glaser & Strauss, 1998; Spradley, 1979). The major…

  18. Shattering the Glass Ceiling: Blacks in Coaching

    Science.gov (United States)

    Hill, Fitzgerald

    2004-01-01

    During the 2003 football season, African Americans were employed as head coaches at five of the 117 NCAA Division I-A colleges and universities. At the conclusion of the 2003 season, there were 13 head coaching vacancies at Division I-A football programs; one African American was hired. Today, five African Americans have the responsibility of…

  19. Understanding Expertise from Elite Badminton Coaches

    Science.gov (United States)

    Sheu, Feng-Ru

    2011-01-01

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

  20. A formalization of the coach problem

    NARCIS (Netherlands)

    Schropp, G. Y R; Meyer, J. J Ch; Ramamoorthy, S.

    2015-01-01

    Coordination is an important aspect of multi-agent teamwork. In the context of robot soccer in the RoboCup Standard Platform League, our focus is on the coach as an external observer of the team, aiming to provide his teammates with effective tactical advice during matches. The coach problem can be

  1. Peer Coaching: Professional Development for Experienced Faculty

    Science.gov (United States)

    Huston, Therese; Weaver, Carol L.

    2008-01-01

    The professoriate, as a whole, is growing older and more experienced; yet institutions often overlook the professional development needs of mid-career and senior faculty. This article, based on a review of the literature and the development of a peer coaching project, examines peer coaching as a professional development opportunity for experienced…

  2. A Multidisciplinary Framework of Instructional Coaching

    Science.gov (United States)

    Kurz, Alexander; Reddy, Linda A.; Glover, Todd A.

    2017-01-01

    Across a wide variety of disciplines, coaching has become the universal practice for improving the professional performance of individuals and, consequently, the effectiveness of their organizations. Despite these shared outcomes, the coaching of individuals such as executives, athletes, and teachers features a variety of approaches, each with its…

  3. Exploring Biographical Learning in Elite Soccer Coaching

    Science.gov (United States)

    Christensen, Mette Krogh

    2014-01-01

    Qualified and skilled sport coaches are vital to the development of sport in general and of elite sport in particular. Research suggests that the development of coaching expertise in elite sport is a complex matter involving mediated, unmediated and internal learning situations. However, it is less clear to what extent and in which ways these…

  4. Older people's experiences of dream coaching.

    Science.gov (United States)

    Wadensten, Barbro

    2009-12-01

    Recalling and talking about dreams could initiate dream work among older people and provide an opportunity for self-confrontation and personal growth, which could in turn promote gerotranscendental development. The present article describes older people's opinions about participating in a dream-coaching group; it also briefly describes the theoretical foundation of dream coaching. The study aim was to investigate older people's experience of participating in a dream-coaching group based on Jungian psychology. A descriptive design was used. Retrospective interviews were explored using qualitative content analysis. The participants were satisfied with the arrangement of the dream-coaching groups. All participants believed that they had recalled their dreams and thought much more about their dreams during the period in which the dream-coaching group met. Three diverse appraisals of participating in a dream-coaching group, which had different effects on the participants, were identified: "An activity like any other activity," "An activity that led to deeper thoughts about the meaning of dreams," and "An activity that led to deeper thoughts both about the meaning of dreams and about how dreams can improve one's understanding of the life situation." It is possible to arrange dream-coaching groups for older people and could be a way to promote personal development using this type of intervention. The study provides some guidance as to how such a group could be organized, thus facilitating use of dream-coaching groups in gerontological care.

  5. A formalization of the coach problem

    NARCIS (Netherlands)

    Schropp, G. Y R; Meyer, J. J Ch; Ramamoorthy, S.

    2015-01-01

    Coordination is an important aspect of multi-agent teamwork. In the context of robot soccer in the RoboCup Standard Platform League, our focus is on the coach as an external observer of the team, aiming to provide his teammates with effective tactical advice during matches. The coach problem can be

  6. The Coach's Playbook Against Drugs. Portable Guide.

    Science.gov (United States)

    Department of Justice, Washington, DC. Office of Juvenile Justice and Delinquency Prevention.

    This booklet helps coaches educate student athletes in middle, junior high, and high school about the dangers of drugs. Athletic coaches have a special relationship with athletes and other students but often underestimate their influence on them. When they talk to their players and students about the dangers of drugs, the message is more effective…

  7. Coaching Development: Methods for Youth Sport Introduction

    Science.gov (United States)

    Vickers, Brad; Schoenstedt, Linda

    2011-01-01

    There are increasing demands and requirements in the coaching profession, and as a result, coaching education programs worldwide have seen an increase in overall participation. In addition, many schools and sport programs in the United States have begun to require a minimum standard of certification. This, in turn, has created sport-specific…

  8. Use of Sports Science Knowledge by Turkish Coaches.

    Science.gov (United States)

    Kilic, Koray; Ince, Mustafa Levent

    The purpose of this study is to examine the following research questions in Turkish coaching context: a) What are coaches' perceptions on the application of sport science research to their coaching methods? b) What sources do coaches utilize to obtain the knowledge they need? c) What barriers do coaches encounter when trying to access and apply the knowledge they need for their sport? In addition, differences in research questions responses were examined based on gender, years of coaching experience, academic educational level, coaching certificate level, coaching team or individual sports, and being paid or unpaid for coaching. The participants were 321 coaches (255 men, 66 women) from diverse sports and coaching levels working in Ankara. The questionnaire "New Ideas for Coaches" by Reade, Rodgers and Hall (2008) was translated, adapted into Turkish, and validated for the current study. According to our findings among Turkish coaches, there is a high prevalence of beliefs that sport science contributes to sport (79.8%);however, there are gaps between what coaches are looking for and the research that is being conducted. Coaches are most likely to attend seminars or consult other coaches to get new information. Scientific publications were ranked very low by the coaches in getting current information. The barriers to coaches' access to sport science research are finding out the sources of information, being able to implement the sport science knowledge into the field of coaching, lack of monetary support in acquiring knowledge, and language barriers. Also, differences in perceptions and preferences for obtaining new information were identified based on coaches' gender, coaching contexts (i.e., professional-amateur), coaching settings (i.e., team/individual), and their other demographic characteristics (i.e., coaching experience, coaching educational level, and coaching certificate level). Future coach education programs should emphasize the development of coaches

  9. Initial validation of the prekindergarten Classroom Observation Tool and goal setting system for data-based coaching.

    Science.gov (United States)

    Crawford, April D; Zucker, Tricia A; Williams, Jeffrey M; Bhavsar, Vibhuti; Landry, Susan H

    2013-12-01

    Although coaching is a popular approach for enhancing the quality of Tier 1 instruction, limited research has addressed observational measures specifically designed to focus coaching on evidence-based practices. This study explains the development of the prekindergarten (pre-k) Classroom Observation Tool (COT) designed for use in a data-based coaching model. We examined psychometric characteristics of the COT and explored how coaches and teachers used the COT goal-setting system. The study included 193 coaches working with 3,909 pre-k teachers in a statewide professional development program. Classrooms served 3 and 4 year olds (n = 56,390) enrolled mostly in Title I, Head Start, and other need-based pre-k programs. Coaches used the COT during a 2-hr observation at the beginning of the academic year. Teachers collected progress-monitoring data on children's language, literacy, and math outcomes three times during the year. Results indicated a theoretically supported eight-factor structure of the COT across language, literacy, and math instructional domains. Overall interrater reliability among coaches was good (.75). Although correlations with an established teacher observation measure were small, significant positive relations between COT scores and children's literacy outcomes indicate promising predictive validity. Patterns of goal-setting behaviors indicate teachers and coaches set an average of 43.17 goals during the academic year, and coaches reported that 80.62% of goals were met. Both coaches and teachers reported the COT was a helpful measure for enhancing quality of Tier 1 instruction. Limitations of the current study and implications for research and data-based coaching efforts are discussed.

  10. Weight-Related Goal Setting in a Telephone-Based Preventive Health-Coaching Program: Demonstration of Effectiveness.

    Science.gov (United States)

    O'Hara, Blythe J; Gale, Joanne; McGill, Bronwyn; Bauman, Adrian; Hebden, Lana; Allman-Farinelli, Margaret; Maxwell, Michelle; Phongsavan, Philayrath

    2016-08-02

    This study investigated whether participants in a 6-month telephone-based coaching program, who set physical activity, nutrition, and weight loss goals had better outcomes in these domains. Quasi-experimental design. The Australian Get Healthy Information and Coaching Service (GHS), a free population-wide telephone health-coaching service that includes goal setting as a key component of its coaching program. Consenting GHS coaching participants who had completed coaching between February 2009 and December 2012 (n = 4108). At baseline, participants select a goal for the coaching program, and sociodemographic variables are collected. Self-reported weight, height, waist circumference, physical activity, and nutrition-related behaviors are assessed at baseline and 6 months. Descriptive analysis was performed on key sociodemographic variables, and the relationship between goal type and change in health outcomes was assessed using a series of linear mixed models that modeled change from baseline to 6 months. Participants who set goals in relation to weight management and physical activity achieved better results in these areas than those who set alternate goals, losing more than those who set alternate goals (1.5 kg and 0.9 cm in waist circumference) and increasing walking per week (40 minutes), respectively. There was no difference in food-related outcomes for those that set nutrition-related goals. Goal setting for weight management and increasing physical activity in the overweight and obese population, undertaken in a telephone-based coaching program, can be effective. © The Author(s) 2016.

  11. The coach as a fellow human companion

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2016-01-01

    ) The narrative-collaborative dimension, (3) The protreptic dimension; (4) Mentalization and (5) Feedback as collaborative and outcome-oriented practice. The intention of this chapter is to show the importance of relationship with a ‘human face’ as the most important influencing factor in coaching, a factor......The relationship between coach and coaching partner is presented as a main condition for successful coaching. The role of this relationship seems to be even more important when current societal changes are taken into account, changes which are often the pivotal point for the understanding...... and necessity of coaching in our society: We live in a hypercomplex society in which both individuals and organizations struggle with increasing diversity and organizational challenges, and where it has become impossible to reach unequivocal and long-lasting solutions to these challenges. The agenda...

  12. Empowering Muslim Women Though Executive Coaching & Mentoring

    Directory of Open Access Journals (Sweden)

    Fadila Grine

    2014-06-01

    Full Text Available This paper examines the role and effect of executive coaching and mentoring on the empowerment of Muslim women and enhancing their levels of contribution. It further substantiates the manner in which executive coaching can accommodate both the nature and needs of Muslim women while further unleashing her respective talents, creativity and skills. The study further highlights the role and significance of coaching in spheres relevant to family, as well as social and career development. This study highlights the use of the strategic technique for personal and leadership development set to explore talents, leaders and implicit abilities. Moreover, it exhibits the flexibility of self-coaching and its appropriateness for Muslim women, especially concerning self-development, which in turn influences social and institutional development. This inquiry highlights a number of practical results which emphasizes the viability and efficacy of executive coaching on personal and institutional levels as far as the making of better world for Muslim women is concerned.

  13. Strength-based leadership coaching in organizations an evidence-based guide to positive leadership development

    CERN Document Server

    MacKie, Doug

    2016-01-01

    Positive organizational psychology, with its focus on the identification and development of strengths, is a natural ally to executive development and leadership coaching. However, this approach is only just beginning to come to the attention of organizations and consequently, the research base for strength-based coaching is in its early stages of development. Strength-based Leadership Coaching in Organizations reviews strength-based approaches to positive leadership development and evaluates the evidence for their effectiveness, critically assesses their apparent distinctiveness and considers how strengths can be reliably assessed and developed in their organizational context. This book reviews key areas of leader and team development are reviewed and outlines and describes a model of strengths development in organizations. The application of strength-based leadership coaching will be discussed from the managerial and external perspective within the context of career stage, seniority, role challenges and orga...

  14. The controlling interpersonal style in a coaching context: development and initial validation of a psychometric scale.

    Science.gov (United States)

    Bartholomew, Kimberley J; Ntoumanis, Nikos; Thøgersen-Ntoumani, Cecilie

    2010-04-01

    This article outlines the development and initial validation of the Controlling Coach Behaviors Scale (CCBS), a multidimensional self-report measure designed to assess sports coaches' controlling interpersonal style from the perspective of self-determination theory (Ryan & Deci, 2002). Study 1 generated a pool of items, based on past literature and feedback from coaches, athletes, and academic experts. The factorial structure of the questionnaire was tested using exploratory and confirmatory factor analyses across Studies 2 and 3. The final CCBS model in Study 3 comprised 4 factors (controlling use of rewards, conditional regard, intimidation, and excessive personal control) and was cross-validated using a third independent sample in Study 4. The scale demonstrated good content and factorial validity, as well as internal consistency and invariance across gender and sport type. Suggestions for its use in research pertaining to the darker side of coaching and sport participation are discussed.

  15. Wellness Coaching Outcomes in a Case Report of a Diabetic Native American Male

    Science.gov (United States)

    2013-01-01

    Medically referred wellness coaching clients may present thinking patterns that generate internal resistance to change, including lack of urgency, inadequate incentives, and uncertainty about what they need to do differently.1 Applying the Wellcoaches (Wellcoaches Corp, Wellesley, Massachusetts) model interventions within a framework of the four domains of learning (cognitive, affective, behavioral, and conative)2 can enhance wellness coaching outcomes. This case report reviews wellness coaching outcomes with a 44-year-old single male tribal member of a Midwest Native American tribe who recently had been diagnosed with diabetes. Challenges presented by resistance to change and a discussion of the four domains of learning applied to wellness coaching are also reported. PMID:24278846

  16. Development of Automation Tool for Bus/Coach Body Frame Finite Element Modeling%客车车身骨架有限元建模的自动化工具开发

    Institute of Scientific and Technical Information of China (English)

    沈辉

    2016-01-01

    以HyperMesh软件为平台,应用tcl\\tk脚本语言开发了一套客车车身骨架壳单元模型的有限元自动化建模工具。相比传统的手工建模,该工具能够显著缩短建模周期,简化繁琐的手工操作步骤,大大提升建模效率。实际应用表明,车身CAD模型的精度越高,则程序的自动化程度越高。%An automation tool for bus/coach body frame finite element modeling with shell elements is developed by using the tcl\\tk programming language based on HyperMesh software. Compared with the traditional manual modeling method, the automation tool can remarkably shorten the modeling period, simplify the complex manual operation, greatly improve the modeling efficiency. The actual application shows that if the accuracy of the body CAD model is higher, the automation level of the tool is higher.

  17. Comparative repair capacity of knee osteochondral defects using regenerated silk fiber scaffolds and fibrin glue with/without autologous chondrocytes during 36 weeks in rabbit model.

    Science.gov (United States)

    Kazemnejad, Somaieh; Khanmohammadi, Manijeh; Mobini, Sahba; Taghizadeh-Jahed, Masoud; Khanjani, Sayeh; Arasteh, Shaghayegh; Golshahi, Hannaneh; Torkaman, Giti; Ravanbod, Roya; Heidari-Vala, Hamed; Moshiri, Ali; Tahmasebi, Mohammad-Naghi; Akhondi, Mohammad-Mehdi

    2016-06-01

    The reconstruction capability of osteochondral (OCD) defects using silk-based scaffolds has been demonstrated in a few studies. However, improvement in the mechanical properties of natural scaffolds is still challengeable. Here, we investigate the in vivo repair capacity of OCD defects using a novel Bombyx mori silk-based composite scaffold with great mechanical properties and porosity during 36 weeks. After evaluation of the in vivo biocompatibility and degradation rate of these scaffolds, we examined the effectiveness of these fabricated scaffolds accompanied with/without autologous chondrocytes in the repair of OCD lesions of rabbit knees after 12 and 36 weeks. Moreover, the efficiency of these scaffolds was compared with fibrin glue (FG) as a natural carrier of chondrocytes using parallel clinical, histopathological and mechanical examinations. The data on subcutaneous implantation in mice showed that the designed scaffolds have a suitable in vivo degradation rate and regenerative capacity. The repair ability of chondrocyte-seeded scaffolds was typically higher than the scaffolds alone. After 36 weeks of implantation, most parts of the defects reconstructed by chondrocytes-seeded silk scaffolds (SFC) were hyaline-like cartilage. However, spontaneous healing and filling with a scaffold alone did not eventuate in typical repair. We could not find significant differences between quantitative histopathological and mechanical data of SFC and FGC. The fabricated constructs consisting of regenerated silk fiber scaffolds and chondrocytes are safe and suitable for in vivo repair of OCD defects and promising for future clinical trial studies.

  18. HANDBALL COACHES' PERCEPTIONS ABOUT THE VALUE OF WORKING COMPETENCES ACCORDING TO THEIR COACHING BACKGROUND

    Directory of Open Access Journals (Sweden)

    Isabel Mesquita

    2011-03-01

    Full Text Available The purpose of this study was to analyze the value attributed to given working competences, by Portuguese handball coaches according to their coaching background, certification level, coaching experience, and level of education. A sample of 207 handball coaches responded to a questionnaire which included demographic characteristics and a scale focused on perceptions of the level of importance attributed to working competences. Data analysis included an exploratory factorial analysis applying Maximum Likelihood Factoring (MLF and Oblimin rotation. These factors were submitted to a One-way ANOVA and Tukey's post hoc multiple comparisons to analyse coaches' perceptions according to their coaching background. A six factor solution was found where three major domains of competences were highlighted; the first one related to training and competition (e.g. planning and conducting the training, team administration in competition, annual and multi-annual planning, and coaching methodology; the second one related to social and cultural issues and management (e.g. implementation of youth sport development projects, team leadership and coach education and the third one related to the cognitive background (meta-cognitive competences. The importance ascribed to some working competences was influenced by their coaching experience and certification level. Highly experienced and qualified coaches perceived competences of everyday practice, social, cultural and management issues related to training and competition as more important than the other coaches. This study suggests the need to consider some working competences, until now not explicitly present in the Portuguese coaching education curriculum which could enable coaches to choose the best way to practice/work in a manner that will foster and support their professional development.

  19. Financial Coaching's Potential for Enhancing Family Financial Security

    Science.gov (United States)

    Collins, J. Michael; Olive, Peggy; O'Rourke, Collin M.

    2013-01-01

    Financial coaching is an emerging complement to financial education and counseling. As defined in this article, financial coaching is a process whereby participants set goals, commit to taking certain actions by specific dates, and are then held accountable by the coach. In this way, financial coaching is designed to help participants bridge the…

  20. Coaching with Parents in Early Intervention: An Interdisciplinary Research Synthesis

    Science.gov (United States)

    Kemp, Peggy; Turnbull, Ann P.

    2014-01-01

    The purpose of this article was to synthesize intervention studies using coaching with parents in early intervention with a focus on (a) definitions and descriptions of coaching with parents; (b) characteristics of families and coaches; (c) parameters such as settings, contexts, dosage, and professional development related to coaching; and (d)…

  1. E-Coaching Systems: Convenient, Anytime, Anywhere, and Nonhuman

    Science.gov (United States)

    Warner, Teri

    2012-01-01

    Technologies continue to evolve to provide more compelling and interactive learning opportunities. Coaching has traditionally been face-to-face or by email. By combining the new technologies with coaching, learning developers now have the opportunity to develop an asynchronous, online, nonhuman coaching system, or e-coaching system. An e-coaching…

  2. Charting the Research on the Policies and Politics of Coaching

    Science.gov (United States)

    Woulfin, Sarah L.

    2014-01-01

    Facing relentless pressure to improve student achievement, many states and districts are using coaching as a policy lever to promote changes in practice. This special issue centers on the policies and politics of coaching, and this editorial commentary highlights what we know about the role of coaches and coaching in the field of education. Then I…

  3. Mentoring and Coaching in Schools: Professional Learning through Collaborative Inquiry

    Science.gov (United States)

    Burley, Suzanne; Pomphrey, Cathy

    2011-01-01

    Can mentoring and coaching really improve professional practice? How can research and inquiry improve mentoring and coaching practice? "Mentoring and Coaching in Schools" explores the ways in which mentoring and coaching can be used as a dynamic collaborative process for effective professional learning. It demonstrates how the use of practitioner…

  4. Student-Student Online Coaching: Conceptualizing an Emerging Learning Activity

    Science.gov (United States)

    Hrastinski, Stefan; Stenbom, Stefan

    2013-01-01

    The aim of this paper is to describe student-student online coaching, defined as "an online service where a student gets support on a specific subject matter from a more experienced student". Student-student online coaching emphasizes learning a subject matter by giving a student the opportunity to get coached by a coach, i.e. a more experienced…

  5. Coaching Strategies for Helping Adolescent Athletes Cope with Stress

    Science.gov (United States)

    Gilbert, Jenelle N.; Gilbert, Wade; Morawski, Cynthia

    2007-01-01

    This article discusses the various sources of athlete stress and the strategies that coaches can use to help young athletes cope with it. The information is based on a study with a competitive adolescent soccer team and its two coaches, and a review of the coaching and sport psychology literature. The suggested coaching strategies can help to…

  6. High School Rugby Players' Perception of Coaching Effectiveness

    Science.gov (United States)

    Broodryk, Retief; van den Berg, Pieter Hendrick

    2011-01-01

    The aims of this study were firstly to determine the players' perceptions of their respective coaches' coaching effectiveness and secondly, determine the difference between big and small schools of the players' perceptions of their respective coaches' coaching effectiveness. Four hundred and seventy six players from 22 schools were asked to fill…

  7. Truth and Courage: Implementing a Coaching Culture. White Paper

    Science.gov (United States)

    Riddle, Douglas

    2016-01-01

    Many leaders recognize that coaching is more than a collection of effective techniques. This recognition has led them to strive for a corporate culture that reflects a coaching mindset and the kind of relationships that coachees find liberating. As many more leaders have experienced the benefits of coaching (by professional coaches or mentors) the…

  8. Instructional Coaching: Teachers' Perceptions of Practice and Effectiveness

    Science.gov (United States)

    Horne, Jason Brock

    2012-01-01

    The purpose of this quantitative study was to investigate K-12 teachers' perceptions of instructional coaching. Specifically, this researcher assessed the perception of instructional coaching as a whole, support for hiring practices for instructional coaches, the value of instructional coaching for improving teaching practices, the value of…

  9. Financial Coaching's Potential for Enhancing Family Financial Security

    Science.gov (United States)

    Collins, J. Michael; Olive, Peggy; O'Rourke, Collin M.

    2013-01-01

    Financial coaching is an emerging complement to financial education and counseling. As defined in this article, financial coaching is a process whereby participants set goals, commit to taking certain actions by specific dates, and are then held accountable by the coach. In this way, financial coaching is designed to help participants bridge the…

  10. Investigation of mechanism of bone regeneration in a porous biodegradable calcium phosphate (CaP) scaffold by a combination of a multi-scale agent-based model and experimental optimization/validation.

    Science.gov (United States)

    Zhang, Le; Qiao, Minna; Gao, Hongjie; Hu, Bin; Tan, Hua; Zhou, Xiaobo; Li, Chang Ming

    2016-08-21

    Herein, we have developed a novel approach to investigate the mechanism of bone regeneration in a porous biodegradable calcium phosphate (CaP) scaffold by a combination of a multi-scale agent-based model, experimental optimization of key parameters and experimental data validation of the predictive power of the model. The advantages of this study are that the impact of mechanical stimulation on bone regeneration in a porous biodegradable CaP scaffold is considered, experimental design is used to investigate the optimal combination of growth factors loaded on the porous biodegradable CaP scaffold to promote bone regeneration and the training, testing and analysis of the model are carried out by using experimental data, a data-mining algorithm and related sensitivity analysis. The results reveal that mechanical stimulation has a great impact on bone regeneration in a porous biodegradable CaP scaffold and the optimal combination of growth factors that are encapsulated in nanospheres and loaded into porous biodegradable CaP scaffolds layer-by-layer can effectively promote bone regeneration. Furthermore, the model is robust and able to predict the development of bone regeneration under specified conditions.

  11. Nursing Student Coaches for Emergency Department Super Utilizers.

    Science.gov (United States)

    Anderson, Della; Patch, Enedina; Oxandale, Brooke; Kincade, Amy; Gamber, Angie; Ohm, Ruth

    2017-01-01

    The Super Utilizer Project is a collaboration between an integrated health care organization and a baccalaureate school of nursing. The goal is to help the super utilizers access appropriate health care resources through the use of a student coach model. The student coaches provide clients with disease prevention and health promotion education and assistance specific to the clients' unique health care needs. The tenets of the theoretical frameworks of servant leadership, caring theory, and transtheoretical model of behavior change are applied throughout this project. First-year outcomes for the project were encouraging, with the total number of visits for 23 super utilizers to the emergency department decreasing from 710 annually to a projected 510 annually, and second-semester visits for 20 clients decreased from 634 to a projected 462. The students experience complex client care and collaboration with an interdisciplinary team reducing nonemergent emergency department super utilizer visits. [J Nurs Educ. 2017;56(1):27-30.]. Copyright 2017, SLACK Incorporated.

  12. Physician communication coaching effects on patient experience.

    Science.gov (United States)

    Seiler, Adrianne; Knee, Alexander; Shaaban, Reham; Bryson, Christine; Paadam, Jasmine; Harvey, Rohini; Igarashi, Satoko; LaChance, Christopher; Benjamin, Evan; Lagu, Tara

    2017-01-01

    Excellent communication is a necessary component of high-quality health care. We aimed to determine whether a training module could improve patients' perceptions of physician communication behaviors, as measured by change over time in domains of patient experience scores related to physician communication. We designed a comprehensive physician-training module focused on improving specific "etiquette-based" physician communication skills through standardized simulations and physician coaching with structured feedback. We employed a quasi-experimental pre-post design, with an intervention group consisting of internal medicine hospitalists and residents and a control group consisting of surgeons. The outcome was percent "always" scores for questions related to patients' perceptions of physician communication using the Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) survey and a Non-HCAHPS Physician-Specific Patient Experience Survey (NHPPES) administered to patients cared for by hospitalists. A total of 128 physicians participated in the simulation. Responses from 5020 patients were analyzed using HCAHPS survey data and 1990 patients using NHPPES survey data. The intercept shift, or the degree of change from pre-intervention percent "always" responses, for the HCAHPS questions of doctors "treating patients with courtesy" "explaining things in a way patients could understand," and "overall teamwork" showed no significant differences between surgical control and hospitalist intervention patients. Adjusted NHPPES percent excellent survey results increased significantly post-intervention for the questions of specified individual doctors "keeping patient informed" (adjusted intercept shift 9.9% P = 0.019), "overall teamwork" (adjusted intercept shift 11%, P = 0.037), and "using words the patient could understand" (adjusted intercept shift 14.8%, p = 0.001). A simulation based physician communication coaching method focused on specific "etiquette

  13. Communication Strategies Used by Physical Education Teachers and Coaches in Residential Schools for the Deaf in the U.S.

    Directory of Open Access Journals (Sweden)

    Kurková Petra

    2016-05-01

    Full Text Available The purpose of this study was to determine what communication and instructional techniques including coaching strategies were being implemented by coaches and physical education (PE teachers working in residential or day schools for the deaf throughout the U. S. Further, to share this information with coaches and PE teachers in general education classrooms. Questionnaire was answered electronically from 32 coaches and PE teachers (38 % return rate. Topics in the survey included: a types of sports/PE classes; b mode of communication used; c coaching and teaching techniques; d coaching and teaching strategies; e breakdowns in communication; f advice to new coaches a teachers starting out in the field. Advice for new coaches, who had not previously worked with the individuals who are deaf or hard of hearing (D/HH, six themes emerged: become fluent in ASL, remember to get the student’s attention before you start signing, use a lot of modelling, role playing, and videos (when needed, keep it simple, stress the fundamentals and insist on repetition until skills are mastered, and be flexible, each player will learn differently. Our results suggest that targeted and adapted communication strategies in PE and physical activities play important role for individuals who are D/HH.

  14. 3D printed tricalcium phosphate scaffolds: Effect of SrO and MgO doping on in vivo osteogenesis in a rat distal femoral defect model.

    Science.gov (United States)

    Tarafder, Solaiman; Davies, Neal M; Bandyopadhyay, Amit; Bose, Susmita

    2013-12-01

    The presence of interconnected macro pores is important in tissue engineering scaffolds for guided tissue regeneration. This study reports in vivo biological performance of interconnected macro porous tricalcium phosphate (TCP) scaffolds due to the addition of SrO and MgO as dopants in TCP. We have used direct three dimensional printing (3DP) technology for scaffold fabrication followed by microwave sintering. Mechanical strength was evaluated by scaffolds with 500 µm, 750 µm, and 1000 µm interconnected designed pore sizes. Maximum compressive strength of 12.01 ± 1.56 MPa was achieved for 500 µm interconnected designed pore size Sr-Mg doped scaffold. In vivo biological performance of the microwave sintered pure TCP and Sr-Mg doped TCP scaffolds was assessed by implanting 350 µm designed interconnected macro porous scaffolds in rat distal femoral defect. Sintered pore size of these 3D printed scaffolds were 311 ± 5.9 µm and 245 ± 7.5 µm for pure and SrO-MgO doped TCP scaffolds, respectively. These 3D printed scaffolds possessed multiscale porosity, i.e., 3D interconnected designed macro pores along with intrinsic micro pores. Histomorphology and histomorphometric analysis revealed a significant increase in osteoid like new bone formation, and accelerated mineralization inside SrO and MgO doped 3D printed TCP scaffolds as compared to pure TCP scaffolds. An increase in osteocalcin and type I collagen level was also observed in rat blood serum with SrO and MgO doped TCP scaffolds compared to pure TCP scaffolds. Our results show that these 3D printed SrO and MgO doped TCP scaffolds with multiscale porosity contributed to early healing through accelerated osteogenesis.

  15. How Three Schools View the Success of Literacy Coaching: Teachers', Principals' and Literacy Coaches' Perceived Indicators of Success

    Science.gov (United States)

    Ferguson, Kristen

    2014-01-01

    This paper investigates how the participants in literacy coaching (teachers, literacy coaches, and principals) perceive the success of their literacy coaching programs. This qualitative study uses data from interviews and observations of literacy coaching from three schools in Ontario, Canada. Four perceived indicators of success were found:…

  16. How the Framing of Instructional Coaching as a Lever for Systemic or Individual Reform Influences the Enactment of Coaching

    Science.gov (United States)

    Mangin, Melinda M.; Dunsmore, KaiLonnie

    2015-01-01

    Purpose: Instructional coaching is framed as both a means for systemic and individual reform. These competing conceptualizations of coaching as a mechanism for change have not been systematically examined, and therefore, we know little about how the framing of instructional coaching initiatives affects the enactment of coaching. In response to…

  17. The efficacy of a scaffold-free Bio 3D conduit developed from human fibroblasts on peripheral nerve regeneration in a rat sciatic nerve model

    Science.gov (United States)

    Yurie, Hirofumi; Ikeguchi, Ryosuke; Aoyama, Tomoki; Kaizawa, Yukitoshi; Tajino, Junichi; Ito, Akira; Ohta, Souichi; Oda, Hiroki; Takeuchi, Hisataka; Akieda, Shizuka; Tsuji, Manami; Nakayama, Koichi; Matsuda, Shuichi

    2017-01-01

    Background Although autologous nerve grafting is the gold standard treatment of peripheral nerve injuries, several alternative methods have been developed, including nerve conduits that use supportive cells. However, the seeding efficacy and viability of supportive cells injected in nerve grafts remain unclear. Here, we focused on a novel completely biological, tissue-engineered, scaffold-free conduit. Methods We developed six scaffold-free conduits from human normal dermal fibroblasts using a Bio 3D Printer. Twelve adult male rats with immune deficiency underwent mid-thigh-level transection of the right sciatic nerve. The resulting 5-mm nerve gap was bridged using 8-mm Bio 3D conduits (Bio 3D group, n = 6) and silicone tube (silicone group, n = 6). Several assessments were conducted to examine nerve regeneration eight weeks post-surgery. Results Kinematic analysis revealed that the toe angle to the metatarsal bone at the final segment of the swing phase was significantly higher in the Bio 3D group than the silicone group (-35.78 ± 10.68 versus -62.48 ± 6.15, respectively; p < 0.01). Electrophysiological studies revealed significantly higher compound muscle action potential in the Bio 3D group than the silicone group (53.60 ± 26.36% versus 2.93 ± 1.84%; p < 0.01). Histological and morphological studies revealed neural cell expression in all regions of the regenerated nerves and the presence of many well-myelinated axons in the Bio 3D group. The wet muscle weight of the tibialis anterior muscle was significantly higher in the Bio 3D group than the silicone group (0.544 ± 0.063 versus 0.396 ± 0.031, respectively; p < 0.01). Conclusions We confirmed that scaffold-free Bio 3D conduits composed entirely of fibroblast cells promote nerve regeneration in a rat sciatic nerve model. PMID:28192527

  18. Nanotopography induced contact guidance of the F11 cell line during neuronal differentiation: a neuronal model cell line for tissue scaffold development

    Science.gov (United States)

    Wieringa, Paul; Tonazzini, Ilaria; Micera, Silvestro; Cecchini, Marco

    2012-07-01

    The F11 hybridoma, a dorsal root ganglion-derived cell line, was used to investigate the response of nociceptive sensory neurons to nanotopographical guidance cues. This established this cell line as a model of peripheral sensory neuron growth for tissue scaffold design. Cells were seeded on substrates of cyclic olefin copolymer (COC) films imprinted via nanoimprint lithography (NIL) with a grating pattern of nano-scale grooves and ridges. Different ridge widths were employed to alter the focal adhesion formation, thereby changing the cell/substrate interaction. Differentiation was stimulated with forskolin in culture medium consisting of either 1 or 10% fetal bovine serum (FBS). Per medium condition, similar neurite alignment was achieved over the four day period, with the 1% serum condition exhibiting longer, more aligned neurites. Immunostaining for focal adhesions found the 1% FBS condition to also have fewer, less developed focal adhesions. The robust response of the F11 to guidance cues further builds on the utility of this cell line as a sensory neuron model, representing a useful tool to explore the design of regenerative guidance tissue scaffolds.

  19. Characterization of mineralized collagen-glycosaminoglycan scaffolds for bone regeneration.

    Science.gov (United States)

    Kanungo, Biraja P; Silva, Emilio; Van Vliet, Krystyn; Gibson, Lorna J

    2008-05-01

    Mineralized collagen-glycosaminoglycan scaffolds designed for bone regeneration have been synthesized via triple co-precipitation in the absence of a titrant phase. Here, we characterize the microstructural and mechanical properties of these newly developed scaffolds with 50 and 75 wt.% mineral content. The 50 wt.% scaffold had an equiaxed pore structure with isotropic mechanical properties and a Ca-P-rich mineral phase comprised of brushite; the 75 wt.% scaffold had a bilayer structure with a pore size varying in the through-thickness direction and a mineral phase comprised of 67% brushite and 33 wt.% monetite. The compressive stress-strain response of the scaffolds was characteristic of low-density open-cell foams with distinct linear elastic, collapse plateau and densification regimes. The elastic modulus and strength of individual struts within the scaffolds were measured using an atomic force microscopy cantilevered beam-bending technique and compared with the composite response under indentation and unconfined compression. Cellular solids models, using the measured strut properties, overestimated the overall mechanical properties for the scaffolds; the discrepancy arises from defects such as disconnected pore walls within the scaffold. As the scaffold stiffness and strength decreased with increasing overall mineral content and were less than that of natural, mineralized collagen scaffolds, these microstructural/mechanical relations will be used to further improve scaffold design for bone regeneration applications.

  20. Influence of scaffold design on 3D printed cell constructs.

    Science.gov (United States)

    Souness, Auryn; Zamboni, Fernanda; Walker, Gavin M; Collins, Maurice N

    2017-02-14

    Additive manufacturing is currently receiving significant attention in the field of tissue engineering and biomaterial science. The development of precise, affordable 3D printing technologies has provided a new platform for novel research to be undertaken in 3D scaffold design and fabrication. In the past, a number of 3D scaffold designs have been fabricated to investigate the potential of a 3D printed scaffold as a construct which could support cellular life. These studies have shown promising results; however, few studies have utilized a low-cost desktop 3D printing technology as a potential rapid manufacturing route for different scaffold designs. Here six scaffold designs were manufactured using a Fused deposition modeling, a "bottom-up" solid freeform fabrication approach, to determine optimal scaffold architecture for three-dimensional cell growth. The scaffolds, produced from PLA, are coated using pullulan and hyaluronic acid to assess the coating influence on cell proliferation and metabolic rate. Scaffolds are characterized both pre- and postprocessing using water uptake analysis, mechanical testing, and morphological evaluation to study the inter-relationships between the printing process, scaffold design, and scaffold properties. It was found that there were key differences between each scaffold design in terms of porosity, diffusivity, swellability, and compressive strength. An optimal design was chosen based on these physical measurements which were then weighted in accordance to design importance based on literature and utilizing a design matrix technique. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2017.