Dissertations / Theses: 'Physical acting'

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Nott, Alison Catherine. "The Russian school of acting : the development and implementation of a psycho-physical acting technique." Thesis, University of Birmingham, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.499313.

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The Russian School of Acting was a term encountered amongst theatre-practitioners in 1990s' Moscow. Its roots lay in Stanislavsky's system with influences from Michael Chekhov and Jerzy Grotowski. In defining the phrase, this investigation follows Stanislavsky's psycho-physical technique through three practices: (1) pre-determining a production through a detailed mise-en-scene; (2) analysing the play through round the table discussions and (3) exploring the Method of Physical Actions. Chekhov's `creative individuality' and Grotowski's via negativa are also considered. The contemporary Russian School of Acting is examined through experience of actor-training at the State Institute of Cinematography in Moscow, 1993 - 1994, in terms of: (a) work on oneself, as explored through Vladimir Ananyev's Scenic Movement; (b) work in the ensemble, as explored through Katya Kamotskaya's Actor Training programme and (c) work on the role, as explored by Albert Filozov's rehearsal of playtexts. An attempt is made to apply the elements of this psycho-physical actor-training to two British repertory productions at the Swan Theatre, Worcester - The Seagull (February 1995) and Steaming (March 1996). In conclusion, an assessment is made of the relevance of the process-orientated Russian technique to the essentially result-orientated British repertory environment

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Richardson, Andrew. "Acting the Absurd: Physical Theatre for Text/Text for Devising." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/3744.

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This paper considers two purposes for actor training—textual interpretation and devising original works—through the teaching of a class based on contemporary theatrical clown and physical theatre exercises which are then applied to Samuel Beckett’s Waiting for Godot. Devised work can be used to interpret a script, and a script can be used as a jumping-off point to devise new works. Beginning with an explanation of the teaching methods for the class, the paper then gives a background of clowns who performed in Beckett’s plays, and analyzes various productions' use of games to enliven text. Exercises from the class are used as examples of exploring the uncovering of clown personas and the application of games to both Beckett scene-work and invented theatre pieces. The students’ final performances are examined to demonstrate the effectiveness of the classwork, confirming that textual interpretation and devising are complementary instead of opposing practices.

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Hadley, Bree Jamila. "Habit in the theatre : Henri Bergson, Gilles Deleuze and performance, with particular reference to the physical theatre of Yumi Umiumare and David Pledger." Monash University, Centre for Comparative Literature and Cultural Studies, 2004. http://arrow.monash.edu.au/hdl/1959.1/5287.

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Roberson, Aqueelah. "SWEAT: THE EXODUS FROM PHYSICAL AND MENTAL ENSLAVEMENT TO EMOTIONAL AND SPIRITUAL LIBERATION." Master's thesis, University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3563.

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The purpose of this thesis is to showcase the importance of God-inspired Theatre and to manifest the transformative effects of living in accordance to the Word of God. In order to share my vision for theatre such as this, I will examine the biblical elements in Zora Neale Hurston's short story Sweat (1926). I will write a stage adaptation of the story, while placing emphasis on the biblical lessons that can be used for God-inspired Theatre. When viewing the stage adaptation based on Sweat, the audience members will understand how God-inspired Theatre aims to help members of society utilize their gifts and abilities to assist others in achieving spiritual stability. The members of the audience will also be informed of my vision to use this piece to inspire others to embrace cultural awareness and sensitivity. This is my vision--helping others to walk in their God-ordained destiny. With this in mind, I am using Sweat as a proposed play because it is closely related to the creation account as recorded in the Old Testament Book of Genesis. In this play, Adam and Eve are replaced with the characters Sykes and Delia Jones. The creation account is a very influential testimony because it is known throughout humanity. Its popularity is due to the fact that the Old Testament is the commencement of the Christian Bible. For those of the Jewish faith, the collection encompasses the Torah, the first five books of the bible--the law for everyday living-- as well as the history of God's promise to them. For Christians, the Old Testament is just as sacred, but they view its religious meaning as incomplete without the life, teachings, death, and resurrection of Jesus Christ detailed in the New Testament. Also, Muslims trace their religious roots to some of the figures in the Old Testament although they deny the religious significance of the work as a whole. In essence, the Old Testament is crucial to Western Civilization. This is why Sweat is so powerful. It takes an extremely familiar testimony and shares pertinent messages that help people to become productive members of society. In order to show how effective Sweat is in helping others to live spirit-filled lives, I will use creative staging that will place the characters in the personal space of the audience members. I will achieve this by: having the actors enter and exit from the audience; allowing certain scenes to take place within the audience; and having the actors deliver some lines to various audience members. I feel that by making the audience a part of the production, it will cause them to see that they are not any different from the characters in the play. At some point in their lives, theatergoers have encountered--or been intimate with--an Adam, an Eve, a Sykes or a Delia. This will cause them to not see Sweat as just a play, but as a valuable life lesson, triggering self-examination and initiating renovated thinking that helps people to become culturally aware and spiritually sound. It is imperative that the biblical messages in Sweat are conspicuous. Whereas the narrator normally describes Delia's facial expression or feelings, I plan to write in scenes where her thoughts are audible. Some of her thoughts will include moments when she is praising and worshipping God. This is apparent because she starts to emerge as a woman of strength as the story progresses. Her relationship with God is cultivated on a daily basis. This is why she is able to tolerate her husband's foolishness. Her husband, Sykes, does not commune with God. To demonstrate his lack of communion with God, I will stage him being resistant to her times of worship--as he normally is according to the narrator. Clearly, the marriage is unbalanced. One partner is trying to please God, and the other is trying to please self. This is not how God intended marriage to be. In the New Testament Book First Peter, it states in the third chapter and seventh verse "husbands are to dwell with them in understanding, giving honor to the wife … being heirs together of the grace of life." Showing the burdensome consequences of destructing God's original design will pull on the hearts of audience members because they have encountered or known someone who is presently dealing with the consequences of this disobedient act. I will further reiterate the need for living a spirit-filled life by using costumes, scenic devices, and lighting to convey the godly and ungodly character traits that are embodied within the story. Through the use of colors and patterns, I will project the internal state of the character as in relation to God's instructions. I will work with a lighting designer in order to help convey the moods of the various scenes. The lighting techniques we choose will help to establish the thoughts and personalities of the characters. These feelings will transcend the minds of the audience and cause them to take the biblical messages into very deep consideration. The actors are the final ingredients in making Sweat an awe-inspiring, informative piece. Words are what they are, what one perceives them to be, while on paper. It is the job of the actor to give life to these words, cause them to live in the atmosphere, and to make the character come alive. Until the actor embodies the very heart of a character, the message in God-inspired Theatre will not be able to come forth and propel audience members to have a spiritual awakening. This is why people cannot just read Sweat. They must see the trials and journeys in order to receive life-changing revelations from the testimonies within the play.
M.F.A.
Department of Theatre
Arts and Humanities
Theatre MFA

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Ferreira, de Mendonça Guilherme Abel. "Acting theory as poetic of drama : a study of the emergence of the concept of 'motivated action' in playwriting theory." Thesis, Brunel University, 2012. http://bura.brunel.ac.uk/handle/2438/7331.

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Playwriting theory has, from its beginning, been concerned with the search for the essential nature of dramatic writing. Early playwriting treatises (poetics) defined the essential aspects of drama as being the plot (creation of sequences of fictional events), the moral character of its heroes, the idea of enactment, or the rhetorical and lyrical qualities of the text. These categories were kept through later treatises with different emphasis being put on each category. An understanding of drama as a sequence of fictional events (plot) has been central in acting theory. Modern theories and techniques centred on Stanislavsky’s ideas rely heavily on rehearsal methods that carefully establish the sequence of actions of the characters in a play as a result of psychological motivations. This method was described by Stanislavsky in An Actor’s Work on a Role, published in 1938, and is known as the Method of Physical Actions. This thesis reassesses the definition of playwriting as consisting essentially in the creation of a plot populated by suitable characters. Rather than discussing playwriting theory in isolation it attempts a bridge between acting theory and playwriting theory by using the Method of Physical Actions as an equivalent to plot. Acting theory is thus considered as a theoretical justification for the centrality of plot. The method used is hermeneutic — a systematic interpretation of poetics, unveiling in almost an archaeological manner the relevance of the essential definitions of drama, such as character, source, genre, and language to the concept of plot. The chronological path of development of dramatic theories is shown to be gradual: from the strict obedience to the narrative line imposed by the mythic sources, in classical treatises; through to an interest in the lyrical expression of the predicament of specific characters, in neoclassical theory; to an awareness of specific social types in the eighteenth century; and, finally, to the conception of the plot as a product of the mental life of individual characters in modern theory.

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Madureira, Ana Mafalda. "(Re)acting the city. Physical planning practices and challenges in urban development projects of the Entrepreneurial City." Doctoral thesis, Blekinge Tekniska Högskola, Institutionen för fysisk planering, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-00583.

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The aim of this dissertation is to traceand discuss the practices and challenges of physical planning within an Entrepreneurial City approach to urban policy. The research aim is addressed by focusing on three questions: 1) how have the practices of physicalplanning been influenced by the context of an Entrepreneurial City approach to urban policy 2) how has physical planning responded to this urban policy context, and 3) which potential dilemmas for physical planning practice derive from this new context? By an Entrepreneurial City approach tourban policy I understand an approach whereby there is an attention placed over strategies to promote local economic growth and attract investments, companies and specific types of people in to the city. Arguably urban policies focus less on welfare-related and redistribution strategies. There is an adoption of private sector discourses and tools to promote the city as a place to live, work and invest in. These discourses and tools pass through place-making strategies, marketing, engagement in speculative, risk-taking market-led projects, and seeking partners with whom to establish alliances that will serve to promote the city. The strong emphasis of Entrepreneurial City approaches on interventions over the built environment of a city or neighborhood implies a greater attention to what is happening to the practices of physical planning in municipalities that have adopted this approach. Existing studies tend to emphasize that it signifies a decrease in the scope of influence for public sector, and by extention for physical planning, in the governance and steering of these projects. The dissertation focuses on large-scale urban development projects – Brunnshög, in Lund, and Bo01, Norra Sorgenfri and Hyllie, in Malmö. The projects were chosen due to their likelihood toillustrate physical planning practices marked by an Entrepreneurial City approach. The main findings of this thesis refute the idea of a turn in urban policy towards entrepreneurial city approaches, and illustrate instead a process by which new practices and values coincide with previously established settings and practices. Physical planning is adopting the discourses of an urban policy approach where intercity competition for new industries (preferably in knowledge-intensive sectors) and residents(preferably the “creative classes”) guide urban development projects. The governance setting is marked by the need to establish working networks and partnerships that will create the capacity to act. Experimentation, piece-meal approaches and inter-project learning mark the adaptation strategies to an urban policy context that is still changing. Potential dilemmas lie in the fragmented character of the partnerships required to execute the projects, and in the assumption that these projects will result in the rehabilitation of the socio-economic trends of the city and promote local economic growth. Additionally the resulting built environments are prone to processes of gentrification and displacement, and spatial and socioeconomic polarization.

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Radvan, Mark. "Towards Bodydialogue : developing a process for enhancing the actor's physicalisation skills in rehearsal and performance." Thesis, Queensland University of Technology, 2005. https://eprints.qut.edu.au/16025/1/Mark_Radvan_Thesis.pdf.

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Bodydialogue is a coherent and simple system of exercises, rehearsal techniques, principles and aesthetic values which in application enhance the actor's ability to physicalise dramatic action and behaviour. It can be applied directly within a rehearsal process to heighten the physical life of a play or performance event, or it can be taught separately as a system for providing student actors with concrete skills in movement, stagecraft and physical characterisation. Unlike many other movement systems taught in drama schools, such as Mime, Dance, Acrobatics or Alexander, which are grounded in their own discipline base, Bodydialogue is grounded in Stanislavsky's Acting through the Method of Physical Action, and as such is centered in the discipline of text-based Acting. It is thus first and foremost an approach to Acting via Physical Action and Physical Behaviour, rather than a study of Movement, or a movement genre. This thesis describes the development and application of Bodydialogue physicalisation techniques to a workshop production of miss julie downunder - an adaptation of Strindberg's Miss Julie - and situates the place of these techniques within contemporary Acting discourse.

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Radvan, Mark. "Towards Bodydialogue : developing a process for enhancing the actor's physicalisation skills in rehearsal and performance." Queensland University of Technology, 2005. http://eprints.qut.edu.au/16025/.

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Bodydialogue is a coherent and simple system of exercises, rehearsal techniques, principles and aesthetic values which in application enhance the actor's ability to physicalise dramatic action and behaviour. It can be applied directly within a rehearsal process to heighten the physical life of a play or performance event, or it can be taught separately as a system for providing student actors with concrete skills in movement, stagecraft and physical characterisation. Unlike many other movement systems taught in drama schools, such as Mime, Dance, Acrobatics or Alexander, which are grounded in their own discipline base, Bodydialogue is grounded in Stanislavsky's Acting through the Method of Physical Action, and as such is centered in the discipline of text-based Acting. It is thus first and foremost an approach to Acting via Physical Action and Physical Behaviour, rather than a study of Movement, or a movement genre. This thesis describes the development and application of Bodydialogue physicalisation techniques to a workshop production of miss julie downunder - an adaptation of Strindberg's Miss Julie - and situates the place of these techniques within contemporary Acting discourse.

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Inouye, Kevin. "Method in Motion: Grounding a Movement Pedagogy in the Lessons of Stanislavski." VCU Scholars Compass, 2012. http://scholarscompass.vcu.edu/etd/2690.

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This thesis is an exploration of movement pedagogy as a continuation of basic acting lessons from Stanislavski. Using the example of an introductory semester of movement instruction, physical acting and movement concepts are explained in terms of their connection to and derivation from universally accepted acting terminology and ideas. This is put forth as a way to facilitate the synthesis of movement instruction with other acting curriculum, as well as providing a new way to view some familiar acting concepts. Several specific examples are explored in more depth as case studies in physical equivalents to the intellectual, visual, or emotional techniques familiar to all with a basic knowledge of Stanislavski based acting principles.

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Borisov, Christine. "The experience and perceived benefits of students with intellectual disabilities acting as tutors : an interpretative phenomenological analysis." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115991.

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This study investigated the reported benefits of adolescent students with an intellectual disability as tutors or teacher assistants in physical education. The personal experience and meaning of five young leaders with an intellectual disability was reported by means of an interview, video activity, picture activity, and field observations. An interpretative phenomenological analysis (IPA) was used. The analysis revealed different combinations of benefits for each participant. All participants expressed positive affects from helping. Four participants identified pride and accomplishment and connectedness. Three participants demonstrated career ambitions and self-identity. Two participants addressed responsibility towards others, being a role model, and modification of behavior. One student addressed altruism as a benefit. The young leaders' experiences were discussed in terms of their roles (Allen & Feldman, 1976), role theory (Thomas & Biddle, 1966), previous tutoring literature, and Hellison's responsibility model (2003).

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Evani, Bhanu M. "WEIGHTED QUANTILE SUM REGRESSION FOR ANALYZING CORRELATED PREDICTORS ACTING THROUGH A MEDIATION PATHWAY ON A BIOLOGICAL OUTCOME." VCU Scholars Compass, 2017. http://scholarscompass.vcu.edu/etd/4760.

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Abstract Weighted Quantile Sum Regression for Analyzing Correlated Predictors Acting Through a Mediation Pathway on a Biological Outcome By Bhanu M. Evani, Ph.D. A thesis submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy at Virginia Commonwealth University. Virginia Commonwealth University, 2017. Major Director: Robert A. Perera, Asst. Professor, Department of Biostatistics This work examines mediated effects of a set of correlated predictors using the recently developed Weighted Quantile Sum (WQS) regression method. Traditionally, mediation analysis has been conducted using the multiple regression method, first proposed by Baron and Kenny (1986), which has since been advanced by several authors like MacKinnon (2008). Mediation analysis of a highly correlated predictor set is challenging due to the condition of multicollinearity. Weighted Quantile Sum (WQS) regression can be used as an alternative method to analyze the mediated effects, when predictor correlations are high. As part of the WQS method, a weighted quartile sum index (WQSindex) is computed to represent the predictor set as an entity. The predictor variables in classic mediation are then replaced with the WQSindex, allowing for the estimation of the total indirect effect between all the predictors and the outcome. Predictors having a high relative importance in their association with the outcome can be identified by examining the empirical weights for the individual predictors estimated by the WQS regression method. Other constrained optimization methods (e.g. LASSO) focus on reducing dimensionality of the correlated predictors to reduce multicollinearity. WQS regression in the context of mediation is studied using Monte Carlo simulation for mediation models with two and three correlated predictors. WQS regression’s performance is compared to the classic OLS multiple regression and the regularized LASSO regression methods. An application of these three methods to the National Health and Nutrition Examination Survey (NHANES) dataset examines the effect of serum concentrations of Polychlorinated Biphenyls (independent variables) on the liver enzyme, alanine aminotransferase ALT (outcome), with chromosomal telomere length as a potential mediator. Keywords: Multicollinearity, Weighted Quantile Sum Regression, Mediation Analysis

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Silva, Emerson Almeida Silva e. "A consciência corporal que antecede a cena: aspectos anatômicos e cinesiológicos das ações físicas na preparação do ator." Escola de Teatro, 2015. http://repositorio.ufba.br/ri/handle/ri/27069.

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Submitted by Glauber Assunção Moreira (glauber.a.moreira@gmail.com) on 2018-08-24T16:53:55Z No. of bitstreams: 1 Dissertação Emerson Almeida PPGAC 2015.pdf: 10306725 bytes, checksum: 2f3f53af78606022beae5445c26d2ae7 (MD5)
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Esta dissertação tem por objetivo analisar e apresentar possibilidades que facilitem a consciência corporal do ator para o desempenho da cena, apoiando-se nos conceitos da anatomia e da cinesiologia. Parte-se do pressuposto de que o ator, ao conhecer a sua estrutura orgânica, estimula a sua percepção corporal e a consciência dos movimentos necessários à criação do papel. No campo das Artes Cênicas a pesquisa se apóia na ideia de proporcionar o treinamento do ator por meio de técnicas corporais que o levem a ampliar o conhecimento de si próprio para atingir prontidão necessária à encenação e tem como eixo o trabalho das ações físicas e como referências o Método das Ações Físicas de Stanislávski, o Teatro Laboratório de Grotowski e a Antropologia Teatral de Barba. Além das referências e cruzamentos teóricos a pesquisa é caracterizada como estudo de caso com enfoque descritivo, de abordagem qualitativa, uma vez que discute e questiona, por meio de relatos de atores e experiências práticas realizadas em salas de ensaio, se a inserção de conteúdo relativo ao construto orgânico do ser humano no contexto da preparação corporal, sob o ponto de vista da anatomia e da cinesiologia, com o suporte do Pilates e da Reeducação Postural Global (RPG), pode propiciar o ator a acessar a consciência corporal no intuito de facilitar o processo de composição das ações físicas na construção de um papel.
This thesis aims to analyze and present possibilities to facilitate body awareness actor for the performance of the scene, leaning on the concepts of anatomy and kinesiology. It starts from the assumption that the actor, to know its structure, stimulates your body perception and awareness of movements needed to create the role. In the Performing Arts field the research is based on the idea of providing the actor's training through body techniques that lead to increase the knowledge of himself to achieve readiness needed for staging and its axis is the work of physical actions referenced by Method of Physical Actions of Stanislavsky, Grotowski Laboratory Theatre and the Theatrical Anthropology Barba. Beyond references and theorists cross the search, characterized as a case study with a descriptive and qualitative approach, discusses and questions, through reports of actors and practical experiments carried out in rehearsal rooms, if the inclusion of content related to organic construct the human body in the context of preparation, from the point of view of anatomy and kinesiology, with the support of Pilates and Global Postural Reeducation (RPG), may provide the actor to access the body awareness in order to facilitate the composition process of physical actions over the development of a scenario.

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Bernard, Rebecca. "Working from the Outside: Discovering Truth Within a Mask." VCU Scholars Compass, 2009. http://scholarscompass.vcu.edu/etd/1700.

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It is the purpose of this thesis to explore the different principles of mask performance in modern theatre and the unique relationship it allows the actor to develop with an audience. The author uses exercises from her training experience with different mask artists such as Teatro Punto, Familie Floz, Torbjorn Alstrom, and Marcello Bartoli. These exercises document a process of training the body in preparation for the mask, how to perform with mask, and how to connect with an audience. The mask is used as a tool to discover an engagement of work that activates both body and imagination of the performer as well as the observer.

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Robins, Gavin. "Moving the actor : towards an holistic approach to training and devising for performance." Thesis, Queensland University of Technology, 2002.

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The purpose of this study is to understand holistic, practical methods of training and devising for physical performance. The research conducted in this thesis is designed to uncover insights into the training and devising mechanisms of my substantial experience with leading physical theatre company Legs on the Wall. In order to understand the training and devising mechanisms of Legs on the Wall I have presented a selected history of the company from their formation in 1983 to 2000. This historical overview traces major influences on the group as well as the type of training and devising the company has incorporated into their work. The way in which the company's training and devising has impacted on the development of other theatre companies and performers has been critically evaluated by the analysis of three case studies. Findings from these case studies as well as insights gained from the analysis of relevant historical data has been collated in order to answer one of the key questions in this study: What are the mechanisms by which the Legs on the Wall training and devising process extends the physical language of actors in other professional physical theatre companies - working with their own text, dramatic structure or scenario - without impeding the artistic vision of the company? A theme running through this study is an inquiry into the notion of holism in training for the contemporary performer. Legs on the Wall's training and devising mechanisms are reviewed in light of the concept of holism and the thesis seeks to reveal reflections by several theatre authorities relating to this topic at relevant moments in the study. Findings gained from my field research in Southern India provide further examples of holism and the notion of training for and creating a 'total theatre'. By referring to the three case studies based on the application of Legs on the Wall's training and devising mechanisms along with the findings relating to the concept of holism I am seeking to answer the other key question of this research: What constitutes holistic movement training for contemporary theatre practice? Having addressed the above key questions I allude to future directions and recommendations for the embodied contemporary performer. This study aims to provide a practical analysis of my own praxis in the field of physical performance in the hope that other practitioners may be able to apply the methods and recommendations outlined in this thesis to their own work in the performing arts industry.

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Leboeuf, Charlotte. "Potential predictors and outcomes of physical activity : comparisons between physically active and inactive adolescent boys." Title page, table of contents and abstract only, 1991. http://web4.library.adelaide.edu.au/theses/09MPM/09mpml447.pdf.

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Smyth, Daniel Arnold. "Patterns of physical activity and respiratory illness in physically active male and female university students." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ31471.pdf.

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Hartmann, Bruno. "Physical determination of the action." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2015. http://dx.doi.org/10.18452/17369.

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Mein Ziel ist eine Begründung der Physik aus der Operationalisierung ihrer Grundmaße. Wir beginnen mit der klassischen und relativistischen Kinematik. Dann greifen wir einen programmatischen Entwurf von Heinrich Hertz auf und gelangen über die Quantifizierung von Energie und Impuls zu den Bewegungsgleichungen und dem Wirkungsfunktional. Den Abschluß bildet eine relativistische Revision der Energie, Impuls und Massenvorstellung. Das Ziel ist nicht primär, den mathematischen Aufbau der Mechanik zu ändern oder zu verbessern, sondern ein tieferes physikalisches Verständnis der Mechanik zu erlangen, so wie Einstein mit seinen Gedankenexperimenten zur relativistischen Kinematik. Ausgehend von anerkannten Messhandlungen und Naturprinzipien wird der mathematische Formalismus erst erzeugt und somit neu beleuchtet. Die Arbeit steht damit im selben Kontext wie die aktuellen Bemühungen zur "Fundierung der Quantenmechanik", nur eben mit Bezug auf die Interpretation der klassischen und relativistischen Kalküle.
My objective is a foundation of physics from the operationalization of its basic observables. We begin with classical and relativistic kinematics. Seizing on a programmatic proposal by Heinrich Hertz we arrive via quantification of energy-momentum at the equations of motion and the action functional. Finally we present a relativistic revision of energy, momentum and inertial mass. The goal is not primarily to change or improve the mathematical structure of mechanics, but to gain a deeper physical understanding of mechanics like Einstein with his gendanken experiments on relativistic kinematics. Starting from undisputed measurement operations and natural principles the mathematical formalism is only created and thus shown in a new light. This work is in the same context as current efforts to the "foundation of quantum mechanics", just with respect to the interpretation of the classical and relativistic calculuses.

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Volkmer, Ward Sabine M. "Dynamic viscoelasticity of actin networks cross-linked with wild-type and mutant [alpha]-actinin-4." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45430.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Physics, 2008.
In title on title page, "[alpha]" appears as lower case Greek letter.
Includes bibliographical references (p. 49-52).
The actin cross-linker [alpha]-actinin-4 has been found indispensable for the structural and functional integrity of podocytes; deficiency or alteration of this protein due to mutations disturbs the cytoskeleton and results in kidney disease. This thesis presents rheological studies of in vitro actin networks cross-linked with wild-type and mutant a-actinin-4, which provide insight into the effect of the cross-linker on the mechanical properties of the networks. The frequency dependent viscoelasticity of the actin/[alpha]-actinin-4 networks is characterized by an elastic plateau at intermediate frequencies, and relaxation towards fluid properties at low frequencies. Since the elastic plateau is a consequence of cross-linking, its modulus increases with the [alpha]-actinin-4 concentration. Networks with wild-type and mutant a-actinin-4 differ significantly in their time scales: The relaxation frequencies of networks with the mutant cross-linker are an order of magnitude lower than that with the wild-type, suggesting a slower dissociation rate of mutant [alpha]-actinin-4 from actin, consistent with a smaller observed equilibrium dissociation constant. This difference can be attributed to an additional binding site, which is exposed as a result of the mutation. An increase in the temperature of networks with mutant [alpha]-actinin-4 appears to return the viscoelasticity to that of networks cross-linked by the wild-type. Moreover, the temperature dependence of the relaxation frequencies follows the Arrhenius equation for both cross-linkers. These results strongly support the proposition that the macroscopic relaxation of the networks directly reflects the microscopic dissociation rates of their constituents.
by Sabine M. Volkmer Ward.
S.M.

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Lenkerd, Allison Burke Sloane. "The Meaning and Cultural Context of Physical Activity as Perceived by Physically Active, Rural African American Women." [Greenville, N.C.] : East Carolina University, 2010. http://hdl.handle.net/10342/2814.

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Herbolsheimer, Florian [Verfasser]. "A physically active lifestyle in old age: the role of the physical and social environment / Florian Herbolsheimer." Ulm : Universität Ulm, 2017. http://d-nb.info/1137264810/34.

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Nilsson, Frederik. "Alkylglucosides physical-chemical properties /." Lund : Physical Chemistry 1, Center for Chemistry and Chemical Engineering, Lund University, 1998. http://catalog.hathitrust.org/api/volumes/oclc/39761789.html.

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Smeltzer, Krista. "Implementation of an elementary school-based action team for active and healthy living." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112516.

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The purpose of this study was to describe and evaluate the process of implementing an elementary school-based action team dedicated to increasing physical activity and healthy living opportunities for students. To facilitate this intervention, Epstein and colleagues' (2002) partnership framework, coupled with action research principles, was used to create partnerships between the school, home, and community. The results suggest that an action team based on Epstein and colleagues' guidelines may be suitable for creating opportunities for healthy and active living in an elementary school setting. In particular, families, students, teachers, and administration believed that the action team initiatives added to the school environment, school spirit, and value of the family as an essential component in the school. Likewise, the action team members felt that the health and wellness committee they represented was a valued component in the school culture that could be further developed and improved on in future years.

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Sun, Fengqiang. "Physical and functional interaction of A2B adenosine receptor with alpha-actinin-1/." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?BIOL%202009%20SUN.

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Zwicker, David. "Physical Description of Centrosomes as Active Droplets." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-127246.

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Biological cells consist of many subunits that form distinct compartments and work together to allow for life. These compartments are clearly separated from each other and their sizes are often strongly correlated with cell size. Examples for those structures are centrosomes, which we consider in this thesis. Centrosomes are essential for many processes inside cells, most importantly for organizing cell division, and they provide an interesting example of cellular compartments without a membrane. Experiments suggest that such compartments can be described as liquid-like droplets. In this thesis, we suggest a theoretical description of the growth phase of centrosomes. We identify a possible mechanism based on phase separation by which the centrosome may be organized. Specifically, we propose that the centrosome material exists in a soluble and in a phase separating form. Chemical reactions controlling the transitions between these forms then determine the temporal evolution of the system. We investigate various possible reaction schemes and generally find that droplet sizes and nucleation properties deviate from the known equilibrium results. Additionally, the non-equilibrium effects of the chemical reactions can stabilize multiple droplets and thus counteract the destabilizing effect of surface tension. Interestingly, only a reaction scheme with autocatalytic growth can account for the experimental data of centrosomes. Here, it is important that the centrioles found at the center of all centrosomes also catalyze the production of droplet material. This catalytic activity allows the centrioles to control the onset of centrosome growth, to stabilize multiple centrosomes, and to center themselves inside the centrosome. We also investigate a stochastic version of the model, where we find that the autocatalytic growth amplifies noise. Our theory explains the growth dynamics of the centrosomes of the round worm Caenorhabditis elegans for all embryonic cells down to the eight-cell stage. It also accounts for data acquired in experiments with aberrant numbers of centrosomes and altered cell volumes. Furthermore, the model can describe unequal centrosome sizes observed in cells with disturbed centrioles. Our example thus suggests a general picture of the organization of membrane-less organelles
Biologische Zellen bestehen aus vielen Unterstrukturen, die zusammen arbeiten um Leben zu ermöglichen. Die Größe dieser meist klar voneinander abgegrenzten Strukturen korreliert oft mit der Zellgröße. In der vorliegenden Arbeit werden als Beispiel für solche Strukturen Zentrosomen untersucht. Zentrosomen sind für viele Prozesse innerhalb der Zelle, insbesondere für die Zellteilung, unverzichtbar und sie besitzen keine Membran, welche ihnen eine feste Struktur verleihen könnte. Experimentelle Untersuchungen legen nahe, dass solche membranlose Strukturen als Flüssigkeitstropfen beschrieben werden können. In dieser Arbeit wird eine theoretische Beschreibung der Wachstumsphase von Zentrosomen hergeleitet, welche auf Phasenseparation beruht. Im Modell wird angenommen, dass das Zentrosomenmaterial in einer löslichen und einer phasenseparierenden Form existiert, wobei der Übergang zwischen diesen Formen durch chemische Reaktionen gesteuert wird. Die drei verschiedenen in dieser Arbeit untersuchten Reaktionen führen unter anderem zu Tropfengrößen und Nukleationseigenschaften, welche von den bekannten Ergebnissen im thermodynamischen Gleichgewicht abweichen. Insbesondere verursachen die chemischen Reaktionen ein thermisches Nichtgleichgewicht, in dem mehrere Tropfen stabil sein können und der destabilisierende Effekt der Oberflächenspannung unterdrückt wird. Konkret kann die Wachstumsdynamik der Zentrosomen nur durch eine selbstverstärkende Produktion der phasenseparierenden Form des Zentrosomenmaterials erklärt werden. Hierbei ist zusätzlich wichtig, dass die Zentriolen, die im Inneren jedes Zentrosoms vorhanden sind, ebenfalls diese Produktion katalysieren. Dadurch können die Zentriolen den Beginn des Zentrosomwachstums kontrollieren, mehrere Zentrosomen stabilisieren und sich selbst im Zentrosom zentrieren. Des Weiteren führt das selbstverstärkende Wachstum zu einer Verstärkung von Fluktuationen der Zentrosomgröße. Unsere Theorie erklärt die Wachstumsdynamik der Zentrosomen des Fadenwurms Caenorhabditis elegans für alle Embryonalzellen bis zum Achtzellstadium und deckt dabei auch Fälle mit anormaler Zentrosomenanzahl und veränderter Zellgröße ab. Das Modell kann auch Situationen mit unterschiedlich großen Zentrosomen erklären, welche auftreten, wenn die Struktur der Zentriolen verändert wird. Unser Beispiel beschreibt damit eine generelle Möglichkeit, wie membranlose Zellstrukturen organisiert sein können

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Matheri, Joseph Mwangi. "Physical inactivity among adolescents with physical disabilities attending high schools in Kenya." Thesis, University of the Western Cape, 2007. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_3717_1258009225.

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Physical inactivity together with overweight and obesity has emerged as a major health risk factor for chronic disease of lifestyle as coronary heart disease, diabetes type 2, and hypertension affecting adolescents with physical disabilities in developed countries. This has contributed to the increase of social and economic costs of healthcare and social services in these countries. Review of literature has revealed that little has been documented about the status of adolescents with physical disabilities in developing countries. This study, therefore, aimed at establishing the degree of physical inactivity among high school adolescents with physical disabilities in Kenya.

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Oakley, Ian. "Haptic augmentation of the cursor : transforming virtual actions into physical actions." Thesis, University of Glasgow, 2003. http://theses.gla.ac.uk/5132/.

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This thesis demonstrates, through the exploration of two very different examples, the general claim that haptic feedback relating to a user's representation in a computer system (typically a cursor) can lead to increases in objective performance and subjective experience. Design guidelines covering each of these two topics are also presented, to ensure that the research described here can be readily adopted by other researchers, designers and system developers. The first topic to be investigated was desktop user interfaces. This thesis describes the design of a variety of different forms of haptic feedback for use with number of different Graphical User Interface (GUI) widgets, or widget groups. Two empirical evaluations of these designs are also described in some depth. The results of these studies indicate that although haptic feedback can provide improvements in objective performance, it can also reduce performance and increase subjective workload if inappropriately applied. From these results, and from the previous literature, detailed guidelines were drawn up covering the addition of haptic feedback to GUIs. The goal of these guidelines is to support the creation of performance-enhancing haptic feedback. The second topic examined was communication in interactive collaborative systems. The design of a suite of haptic communication is presented in detail, before two studies investigating different aspects of its use. The first study focuses on the subjective influence of the haptic communication as a whole, while the second is a more thorough look at one particular form of the feedback and includes objective measurements. The combined results of these studies indicate that haptic feedback has a valuable potential for increasing the quality of a user's subjective experience. Observations from these studies also reveal insights into the role of haptic feedback in communication. A set of guidelines summing up this research and the previous literature relevant to this topic are then presented. As research on this domain is in its infancy, the goal of these guidelines is to concisely present the main issues and potential benefits that respectively restrict and drive this work.

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Ahmed, Tarannum. "Physical Activity of Swedish Immigrants and Their Health Outcomes, Barriers and Facilitators To Be Physically Active: A SYSTEMATIC REVIEW." Thesis, Mälardalens högskola, Akademin för hälsa, vård och välfärd, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-55807.

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Immigrants of Sweden are suffering from various non-communicable diseases more than Swedish natives which becomes a major public health concern nowadays. The objective of this systematic review is to investigate the physical activity level of Swedish immigrants compare to Swedish-born, their physical and mental health outcomes, and barriers and facilitators of being physically active. Electronic database CINAHL PLUS, PUBMED, EBSCOhost, SWEPUB was searched and 17 articles were included which was peer-reviewed, English language, based on physical activity of immigrants living in Sweden. Findings of these articles revealed that immigrants had a higher prevalence of non-communicable, anxiety, depression more than Swedish natives. Lack of motivation, weather, cultural and language barriers, environmental, infrastructure, and economic barriers are identified as barriers. Self-motivation, family and social support, culturally appropriate strategies, government-induced programs, community support are identified as facilitators of being physically active. The quality of evidence of outcomes scored by using GRADE. In conclusion, the available evidence support that immigrants are less physically active than Swedish-born and lack physical activity associated with their physical and mental health outcomes and there are several barriers and facilitators for being physically active.

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Fernandes, Roberto Cid. "Physical processes in active galactic nuclei and starbursts." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363192.

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Raimundo, Sandra Isabel de Jesus. "Measuring the physical properties of active galactic nuclei." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609908.

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30

Polisetti, Mounika. "Physical Layer Security With Active Jamming Using NOMA." Thesis, Blekinge Tekniska Högskola, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-21259.

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This paper is persuaded to understand the physical layer security in wireless commu-nications utilizing NOMA (Non Orthogonal Multiple Access) concepts in the presence of an eavesdropper. Physical layer security maintains the confidentiality and secrecyof the system against eavesdroppers. We use the power domain in this paper, where NOMA allows many users to share resources side by side. Power allocation concern-ing channel condition is taken into consideration where user whose channel condition is weak is allocated with eminent power to directly decode the signal, whereas theuser with better channel condition applies successive interference cancellation (SIC)to decode the signal. Here, the base station communicates with the users and sends data signals while the eavesdropper secretly eavesdrops on the confidential informa-tion simultaneously. In this thesis, to improve the physical layer security, jamming method was usedwhere users are assumed to be in full duplex, send jamming signals to degrade the performance of the eavesdropper. Analytic expressions of CDF, PDF, outage proba-bility and secrecy capacity are obtained from analyzing the NOMA jamming scheme. The numerical results are evaluated with the simulations results and analysed theeffect of jamming on improving the performance of the NOMA system in presenceof an eavesdropper.

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Rougeot, Céline. "Deracemisation of active compound precursors by physical treatments." Toulouse 3, 2012. http://thesesups.ups-tlse.fr/3095/.

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La purification d'énantiomères par cristallisation est très utilisée en industrie, mais ne peut être appliquée à tous les composés ; l'optimisation de techniques déjà existantes est un enjeux considérable pour les scientifiques. La synthèse de nouveaux sélecteurs chiraux a été proposée. Une petite librairie de ß-cyclodextrines monosubstituées a été synthétisée, afin de consolider les interactions hote-invité. Aucune discrimination chirale n'a pu être mise en évidence et l'existence d'une large gamme d'hydrates a été observée. Les études structurales et la détermination des diagrammes de phases hôte/invité/solvant pourraient rationnaliser la discrimination chirale. Un second procédé d'obtention d'énantiomères purs a été étudié : la déracemisation, permettant de transformer quantitativement une suspension racémique en énantiomère pur par action de billes de verre. Ce procédé est limité aux composés chiraux facilement racémisables en solution et cristallisant comme des conglomérats. Or la cristallisation de conglomérats est peu fréquente et surtout imprévisible. Cependant, certaines familles de composés ont une tendance prononcée à former des conglomérats. Deux nouvelles familles ont été étudiées ; il est apparu que la modification modérée des substituents perturbait peu l'empilement cristallin, la discrimination totale à l'état solide étant préservée. Il a aussi été prouvé que les ultrasons pouvaient remplacer les billes de verre, rendant le procédé plus performant. La comparaison des deux procédés a permis d'éclaircir le mécanisme de déracémisation. Une autre étude a permis d'appliquer la déracémisation à la synthèse de l'énantiomère pur d'un composé pharmaceutiquement actif
The purification of enantiomers by crystallisation is widely used in industry, but cannot be applied to all compounds. The improvement and optimization of existing techniques is therefore a major issue for scientists. Thus, the synthesis of new chiral selectors has been proposed. A small library of monosubstituted ß-cyclodextrins was synthesized to enhance the host-guest interactions. No chiral discrimination was visible so far and the existence of a large range of hydrates was highlighted. Structural studies and the determination of the host/guest/solvents phase diagrams may rationalise the chiral discrimination. A second method to access to pure enantiomers was studied: the deracemisation. It quantitatively transforms a racemic suspension into pure enantiomer by action of glass beads. Unfortunately, this process is limited to chiral components easily racemisable in solution and crystallising as conglomerates. The crystallisation of conglomerates is uncommon and unpredictable. But, some families of compounds exhibit a high tendency to crystallise as conglomerates. Two new families were studied and it appeared that limited modifications of substituents do not disturb too much the crystal packing so that the full chiral discrimination in the solid state is preserved. It has also been shown that ultrasounds can replace the action of the glass beads, making the process more efficient. In addition, studies carried out on a series of compounds allowed to shed light on the deracemisation mechanism. An additional study allowed to apply the deracemization process to the synthesis of enantiomerically pure active pharmaceutical compounds

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Thompson, Janalee. "Occupational Physical Activity in Sedentary and Active Workers." Thesis, Colorado State University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10264534.

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With the increasing use of technology in the workplace, many jobs are becoming more sedentary. The purpose of this study was to establish a quantitative baseline measure of occupational physical activity (OPA) in active and sedentary workers. Two activity trackers (Fitbit Charge HR™ and Hexoskin) were used to assess activity measures (step count, heart rate and energy expenditure) among workers during their work shift. The first objective of the study was to assess the agreement between two types of accelerometer-based activity trackers as measures of OPA. The second objective of this study was to assess differences in measures of OPA among workers in physically active and sedentary work environments. There was a statistically significant difference in measures of total step counts between the two devices. When comparing active and sedentary workers there were also statistically significant differences in measures of step counts, mean percent heart rate increase, maximum heart rate range and energy expenditure. Conclusion: The Fitbit Charge HR™ and Hexoskin had significant differences in measures of step counts and heart rate. When comparing active and sedentary workers, there were significant differences in measures of step counts, mean heart rate, maximum heart rate range required by job, and energy expenditure. The results of the present study provide quantitative evidence that active workers require greater physiologic demands than sedentary workers.

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Figaji, Tamara Ann. "Impact of a lifestyle physical activity intervention on school going children's physical activity participation." Thesis, University of the Western Cape, 2009. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6968_1297753030.

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Associated with physical inactivity and obesity are numerous other health risks which have become a major health concern. A steady decrease in the levels of physical activity during childhood and adolescents have been noted in various parts of the world. The picture of low physical activity levels in developed countries is no different in developing countries. Children spend the majority of their day at school therefore a school setting is ideal to conduct physical activity intervention studies The primary aim of this study was to measure the effect of an intervention programme on the physical activity participation levels among school going children and adolescents. The study was carried out at an urban independent Catholic school. The sample, which was conveniently selected, which included 100 learners from grade 5 to 7 with parental consent. A quantitative approach using a quasi-experimental design was used in this study. Baseline data included levels of physical activity participation, Body Mass Index (BMI), hip-waist ratio, and socio-demographic variables. Physical activity was assessed with the Modifiable Activity Questionnaire for Adolescents. The Promoting Lifestyle activity for Youth (PLAY) programme was implemented at the school. This process-oriented programme shifts the focus from fitness toward regular participation in daily physical activity, and it is not intended to replace a comprehensive physical education programme.

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El, Shafey Ahmed. "Stay active. : Factors motivating elderly people to stay physically active after physiotherapy." Thesis, Luleå tekniska universitet, Hälsa och rehabilitering, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-75067.

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Background: Despite the known benefits of physical activities in the management of many chronic diseases associated with aging, a majority of elderly patients within primary health care have difficulties reach the daily recommendation of physical activity and risking being inactive after physiotherapy. Therefore, it is important to understand the factors influencing their motivation in order to provide support for them to stay physically active after physiotherapy. Aim: To describe the perceived latent motivating factors to stay physically active after physiotherapy among elderly people. Method: The Data was collected by open-ended interviews conducted with ten Swedish patients aged 69-88 years and then analyzed using content analysis and interpreted within a social cognitive theory framework context.[LN1] Results: The results contributed to one theme “Ability to cope with one-self, others and the environment“ combined with three categories. The categories were subjective factors, physical activity-related factors, and environmental factors. The result supports the participants’ characteristics that were partially similar to those in older age population. However, the current study contributed with new knowledge within each category. The outcome of these factors has shown that all participants enjoy high self-efficacy despite the variation in their health conditions. Inner feelings such self-blaming, discouragement and fear of being left out and alone expressed as matter of high relevance to older adults’ motivation, but not often considered within physiotherapy. The results also showed that having others as role models was not as important as having professional support. Additionally, relevant information, type of sport facilities and physical activities as well as having fixed routines for physical activities influenced their motivation. Conclusion: The ability to cope with one-self, others and the environment was the main motivating factor to stay physically active after physiotherapy. This coping ability was influenced by subjective factors, physical activity-related factors and environmental factors. Health care professionals should be aware of these motivating factors and use them as a guide to support elderly patients’ motivation to stay physically active. [LN1]..within eller from a social cognitive theory framework???

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Hemeyer, Kristyn. "Active Design: Propelling Movement Through Architecture to Boost Physical Activity." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1522336964798673.

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Li, Xun. "Physical systems for the active control of transformer noise." Title page, contents and abstract only, 2000. http://hdl.handle.net/2440/37964.

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Traditional means of controlling sound radiated by electrical power transformers involve the construction of large expensive barriers or full enclosures, which cause maintainability and cooling problems. One promising alternative is to use active noise control to cancel the noise. This thesis is concerned with one of the many problems which need to be investigated to develop a practical active noise cancellation system for transformers. This work, in particular, is concerned with the physical system design which includes the selection of the control source types and the evaluation of the near-field sensing strategies. Loudspeakers have been widely used in the past as an acoustic source for canceling transformer noise. The principal disadvantage of using loudspeakers is that to achieve global noise control, a large number, driven by a multi-channel controller, are required. However, if large panels are used in place of loudspeakers as control sources, it is possible that the number of the control sources and complexity of the controller could be reduced substantially. In addition to reducing the number of control sources and simplifying their application, panel sound sources could also overcome some disadvantages of the loudspeakers, such as limited life and deterioration due to the weather. Thus, part of the work described in this thesis is concerned with the development of a resonant curved panel with a backing cavity as an acoustic type source. The advantages of using a curved panel rather than a flat panel are twofold: first a curved panel is more easily excited by the extensional motion of the piezoelectric patch actuators; and second, it is more difficult to adjust the resonance frequencies of the efficient modes of a flat panel than of a curved panel. The analytical models for the design of the panel cavity systems have been developed. As an example, a resonant curved panel with a backing cavity system was constructed and the sound radiation of the system was measured. Results show that a resonant panel-cavity sound source could be used as an alternative to a number of loudspeakers for active cancellation of electric power transformer noise. Due to the advantages of using the vibration type control sources, two types of vibration control sources (inertial electrodynamic shakers and piezoelectric patch actuators) were considered and the mechanical output of the inertial shakers has been compared with that of the piezoelectric actuators. In contrast with the piezoelectric actuators, the resonance frequencies of the inertial shakers can be tuned to the frequencies of interest using simple tuning procedures, so that the output efficiency of the shakers can be increased. The output performance was evaluated for two types of actuators by measuring the structural response of either a panel or a transformer when excited by the actuators at half their rated voltage input. Results demonstrated that a much larger output amplitude at the frequency of interest can be achieved by the tuned inertial type actuators. Two near-field sensing strategies, the minimization of the sum of the sound intensities and the minimization of the sum of the squared sound pressures, have been studied. A quadratic expression was derived for the minimization of the sum of the sound intensities in the near-field. To evaluate the control performances achieved using both sensing strategies, a flat-panel was modelled with a harmonic point force disturbance and several point force control sources. Simulation results show that the control performance could be improved by minimizing the sum of the sound intensities in the hydrodynamic near-field, provided that a very large number of error sensors were used, otherwise better results were achieved using near-field squared pressure sensing. Both sensing strategies were used to predict the noise reductions that resulted for the active noise control of a small transformer in the laboratory environment and for a large electrical power transformer on site. To optimize the locations of the control sources (for the large transformer on site) and the locations of the error sensors (for the small transformer in the laboratory environment), a genetic algorithm (GA), which is an evolutionary optimization technique, was employed as a search procedure to optimize the control source and error sensor locations. The results showed that the control source locations and/or the error sensor locations must be optimized to achieve the maximum sound reduction for either error sensing strategy, especially for the sound intensity minimization; otherwise, the sound field level may increase after control due to the character of the cost function (the sum of the sound intensities). The simulation results were experimentally validated for the small transformer in the laboratory environment. Due to the limitation of the number of controller channels, the control performance was only evaluated for squared pressure minimization. The results demonstrated that for the case of 8 control sources and 8 error sensors, at 100 Hz, an average sound pressure reduction of 15.8 dB was achieved when evaluated at 528 monitoring locations at 0.25 m intervals on a surface that surrounded the transformer.
Thesis (Ph.D.)--Engineering (Department of Mechanical Engineering), 2000.

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Ma, Fuyuan. "Electrochemically active organic thin films." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0020/NQ44501.pdf.

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38

Bartels, Clare. "Insulin resistance, physical activity and physical fitness in adults residing in a northern suburb of Cape Town." Thesis, University of the Western Cape, 2011. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_4307_1360922735.

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Insulin resistance has shown to be a precursor to a number of lifestylerelated chronic diseases and abnormalities in adults and is affected by a number of factors including genetics, age, physical activity and acute exercise, diet, obesity, body fat distribution and medication. Physical activity has shown to have marked effects on improving sensitivity to insulin though various physiological mechanisms, and numerous correlation studies have identified a relationship between these two variables, suggesting the beneficial role of exercise on insulin resistance.
This study aimed to identify a relationship between current levels of physical activity, physical fitness and insulin resistance in adults between the ages of 35 and 65 years of age residing in a northern suburb community in Cape Town. A total of 186 volunteers participated in this study ranging from healthy individuals to those with diagnosed chronic conditions. Insulin resistance (determined by the homeostasis model assessment of insulin resistance), physical activity (measured by the Global Physical Activity Questionnaire) and five health-related physical fitness tests were measured. The five components included body composition, determined by body mass index and waist circumference, the 3-minute cardiorespiratory step test, the handgrip
muscle strength test, one-minute crunches for muscle endurance and the sit-and-reach flexibility test. Spearman correlation was used to identify the relationships between the homeostasis model assessment of insulin resistance, age, body composition and physical activity and fitness.Results showed that body mass index and waist circumference were the only two variables which produced significant correlations with the homeostasis model assessment of insulin resistance (p <
0.019). No physical activity or fitness data produced significant scores with the homeostasis model assessment of insulin resistance. Body mass index in men was the only significant predictor of HOMA-IR and explained 37% of the variance in insulin resistance, whereas in women, only waist circumference was related to HOMA-IR, but explained less than 16% of the variance. Associations between reported MET-minutes from the Global Physical Activity Questionnaire and the four fitness tests indicated significance with handgrip strength (&rho
= 0.17
p =0.039), one-minute crunches (&rho
= 0.18
p = 0.024) and sit-and-reach flexibility (&rho
= 0.17
0.034). This study has shown that body composition is an important component in influencing insulin resistance therefore physical activity interventions should be targeted at increasing physical activity levels and reducing body weight.

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Manuel, Eric R. "Physically active centered medical home." Thesis, California State University, Long Beach, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1599186.

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Under the provision of the United States Department of Health and Human Services, the patient centered medical home is a model of primary care transformation that seeks to meet the variety of healthcare needs of patients and to improve patient and staff experiences, outcomes, safety, and system efficiency. Serving the medically underserved and primary care clinic shortage area of Long Beach, California, the Physically Active Centered Medical Home (PAC MH) will be a safe haven for healthy and physically active individuals who are required to avail of health insurance coverage as mandated by the Patient Protection and Accountable Care Act of 2010 (PPACA). PAC MH will offer comprehensive and integrated services that will keep its members healthy and away from the burden of repeated clinical visits. PAC MH understands that medical coverage is the least of the priorities for healthy adults. Hence, PAC MH’s payment system is made simple. The value-based care provided at PAC MH will reward the healthcare team for achieving and exceeding the pre-established benchmarks for quality care.

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Henretty, Joan M. "Physical activity and adolescent girls : the development and evaluation of an active-gaming intervention utilising social cognitive theory and action research." Thesis, Heriot-Watt University, 2011. http://hdl.handle.net/10399/2506.

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This action research study sought to develop and evaluate an SCT based active-gaming which aimed to increase physical activity (PA) behaviour and psycho-social correlates of PA in adolescent girls. A review of the literature and consultation with stakeholders led to the development of four studies. Informed by SCT the first three studies were designed to focus on the role of individual, environmental and behavioural factors on PA behaviour, respectively. Study 1 was a small-scale school-based randomised controlled trial (n=21) evaluating the effectiveness and feasibility of PA consultations on enhancing psycho-social correlates of PA and PA behaviour. Questionnaire responses, a pupil validity questionnaire and researcher case notes indicated that PA consultations were well received and effective at moving participants through the stages of change; however there were no significant changes in PA behaviour and psycho-social correlates of PA. Study 2 incorporated focus groups and inductive content analysis to identify the environmental factors that adolescent girls (n=38) perceived as influencing PA during PE. Results highlighted several key social and physical enviornmental factors perceived to influence PA. Study 3 employed focus groups and inductive content analysis to examine the experiences of girls (n=8) who participated in a small-scale active-gaming intervention, reporting that girls were supportive of the activity. Study 4 was informed by Studies 1 to 3 and aimed to design, implement and evaluate the effectiveness of an active-gaming intervention with group PA consultations on PA behaviour and psycho-social determinants of PA in adolescent girls (n= 244). Outcome variables were assessed by questionnaire and the feasibility and acceptability of the project was assessed by monitoring attendance, employing a social validity questionnaire and researcher case notes. Results indicated that the intervention was effective in moving participants through the stages of change; however only low active girls demonstrated significant changes in PA and psycho-social determinants of PA. The intervention was generally well received with high attendance and positive feedback. Researcher case notes indicated that less active participants responded most favourably to the intervention. Overall, the study concluded that adolescent girls‘ PA behaviour is influenced by individual and environmental factors. Girls are open and favourable to PA interventions, especially when they focus on the individual‘s needs. Active-gaming is a popular activity with adolescent girls; however active-gaming may only be effective at increasing the PA levels of low active girls.

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Daly-Smith, Andrew, M. Hobbs, J. L. Morris, M. A. Defeyter, G. K. Resaland, and J. McKenna. "Moderate-to-vigorous physical activity in primary school children: inactive lessons are dominated by maths and English." MDPI, 2021. http://hdl.handle.net/10454/18366.

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Yes
Background: A large majority of primary school pupils fail to achieve 30-min of daily, in-school moderate-to-vigorous physical activity (MVPA). The aim of this study was to investigate MVPA accumulation and subject frequency during academic lesson segments and the broader segmented school day. Methods: 122 children (42.6% boys; 9.9 ± 0.3 years) from six primary schools in North East England, wore uniaxial accelerometers for eight consecutive days. Subject frequency was assessed by teacher diaries. Multilevel models (children nested within schools) examined significant predictors of MVPA across each school-day segment (lesson one, break, lesson two, lunch, lesson three). Results: Pupils averaged 18.33 ± 8.34 min of in-school MVPA, and 90.2% failed to achieve the in-school 30-min MVPA threshold. Across all school-day segments, MVPA accumulation was typically influenced at the individual level. Lessons one and two—dominated by maths and English—were less active than lesson three. Break and lunch were the most active segments. Conclusion: This study breaks new ground, revealing that MVPA accumulation and subject frequency varies greatly during different academic lessons. Morning lessons were dominated by the inactive delivery of maths and English, whereas afternoon lessons involved a greater array of subject delivery that resulted in marginally higher levels of MVPA.
This research was funded by Redcar and Cleveland Borough Council.

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42

Rolston, Laura Elizabeth. "F-actin rearrangements and analysis of physical environment of invasive hyphal growth." Thesis, University of Canterbury. School of Biological Sciences, 2009. http://hdl.handle.net/10092/3621.

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Invasive growth through a substrate requires a massive amount of penetrative force, and this is generated in the space of a few microns in a growing tip. This process is known to be critical in the root hair, pollen tube, rhizoids, and the topic of this thesis, hyphal growth. However defining the mechanisms underlying the tip growth remains a contentious issue. Shortcomings in control of direction and regulation of growth began to undermine early turgor-based theories, and the cytoskeletal protein actin, ubiquitous in nature and with crucial roles in structure and motility became a target for investigation. A major breakthrough came with the discovery that a characteristic actin depleted zone (ADZ) occurs at the growing tip of hyphae during invasive but not non-invasive hyphal growth. The ADZ is likely to have an important role in generating the greater protrusive force required for invasive growth. However, since its discovery, little has been determined about the characteristics of the ADZ. Uncertainty in the description of the physical environment the hyphae face adds a layer of complexity to interpretation of results. This thesis aims to address this issue, studying the impact of increasing agarose substrate concentration on the presence and dimensions of the ADZ in the oomycete A. bisexualis. Furthermore, agarose is examined by compression and imaging to compare the physical characteristics of the agar samples over the range of concentrations, and determine whether increasing agarose concentration influences agarose gel structure. Results suggest a difference in the number of ADZ observed in non-invasive compared with invasive samples, however no significant differences in the number or dimensions of ADZ were found amongst the 1-4% w/v agarose concentrations. The 0% sample showed 20.7 percent of hyphae exhibited depleted zones, while 1, 2, 3 and 4% samples showed 56.9%, 48.8%, 40.9% and 54.2% respectively. ADZ dimensions did not correlate with agarose concentration. The average ADZ area:hyphal diameter ratio was 0.634, 0.526, 0.430, 1.09, and 0.65 for 0-4% agarose concentrations respectively. Additionally, investigation of gel compression forces revealed gel strength increases with agarose concentration. The force required to compress the agarose increased from 1.85 Psi in 1% agarose to 4.85, 7.09 and 12.22 Psi in 2, 3 and 4% agarose concentrations respectively. SEM imaging, however, suggests heterogeneity of the fibrous interconnected network of agarose gels at a microscopic scale with variable porous structure at all agarose concentrations. This scale is relevant to hyphal tip growth. In combination, these results suggest F-actin depletion may be a response mechanism to provide greater force for invasive growth. Additionally, this response is not dependent on the concentration of the agarose media, possibly due to the variability encountered within the media. These results contribute another important step forward in unraveling the elusive mechanism of tip growth.

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43

Yang, Lin. "Physical activity in adults : investigating the contribution of active travel." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610782.

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44

Gällsjö, Anders, and Mattias Johansson. "Physical Modelling and Automatic Configuration of CES Valve." Thesis, Linköpings universitet, Fluida och mekatroniska system, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-79261.

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This thesis has been performed at Öhlins Racing AB which is known world-wide for its high quality racing shock absorbers. Öhlins have been developing shock absorbers for more than 30 years and in addition to this they also develop a technology for semi-active suspension. Semi-active suspension technology makes it possible to achieve an intelligent and dynamic vehicle chassis control. Compared to standard passive suspensions, semiactive dampers allow improving vehicle cornering performance while still providing good comfort when cruising. This is achieved by a real time adjustment of the suspensions damping characteristics. Öhlins system for semi-active suspension is called CES (Continuously controlled Electronic Suspension). The systems consist of electronically controlled hydraulic valves for uniflow dampers. These valves are mounted on all four dampers of the vehicle and are controlled individually to provide the desired ride quality. The valves are configurable to suit many types of vehicles by changing internal parts. The first goal of this thesis project was to study the behaviour of the CES valve and uniflow damper. In order to achieve this a simulation model was created using Hopsan which is a 1-dimensional multi-domain modelling tool developed at the division of Fluid and Mechatronic Systems at Linköping University. The model considers mechanical forces from for example springs together with hydraulic forces. It was validated against static and dynamic measurements made in a flow bench and a dynamometer. The second goal was to use the simulation model as part of a tool that configures the CES valve according to a requirements specification. To achieve this goal a method of estimating the characteristics of the internal damper valves was developed. This estimation method, together with the simulation model, was used to choose the best valve configuration by using weighted least-squares. The result is presented in a Matlab-based graphical user interface.

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45

Carrel, Hyman A. (Hyman Andrew) 1979. "Giant vesicles compressed by actin polymerization." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/16646.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Physics, 2004.
Includes bibliographical references (p. 45-46).
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Actin polymerization plays a critical role in generating propulsive force to drive many types of cell motility. The discovery of actin based motility of the bacterial pathogen Listeria monocytogenes has lead to clearer understandings of the essential ingredients required for cell motility. The biophysical mechanisms by which these proteins generate forces is the subject of intense investigation. A novel system to study force generation by this polymerization engine is introduced by combining the well characterized mechanical properties of synthetic Giant Vesicles with the well understood biochemistry of actin polymerization. Giant Vesicles mimic the structural features of eukaryotic cell membranes. We find that Giant Vesicles coated with a protein that catalyzes actin polymerization form thick actin shells which produce a compressive force. The polymerization force directed at the membrane interface causes the membrane to rupture. In the resulting collapse we find that the shell thickens inward with a constant radial velocity and is characterized by radial lines of lipid and actin. We show that actin polymerization is the primary force driving the collapse.
by Hyman A. Carrel.
S.M.

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46

Salbreux, Guillaume. "Modélisation des instabilités du cortex d'actine." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2008. http://tel.archives-ouvertes.fr/tel-00382577.

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Le cortex d'actine est une fine couche de gel d'une épaisseur de l'ordre du micron, attaché à la membrane lipidique de la cellule. Il est constitué d'un réseau de filaments d'actine qui sont constamment polymérisés à la membrane puis dépolymérisés, dans un mouvement de « tapis roulant ». Des moteurs moléculaires, les myosines, génèrent des contraintes internes dans le gel.Le cortex contrôle ainsi les variations de forme de la cellule. Dans cette thèse nous utilisons le modèle des gels actifs pour explorer certaines propriétés du cortex d'actine. Le gel est décrit a l'échelle mésoscopique comme un matériau viscoélastique nématique dans lequel les myosines utilisent l'énergie fournie par l'hydrolyse de l'ATP pour produire des contraintes actives, c'est à dire plaçant le système hors d'équilibre thermodynamique. Dans un premier temps nous étudions de quelle façon l'épaisseur du cortex peut être régulée, et nous discutons l'apparition d'instabilités actives dans la couche. Nous utilisons l'instabilité du gel ainsi décrite pour interpréter l'observation expérimentale d'oscillations de formes de fibroblastes induites par des canaux calciques mecanosensibles. En incluant un paramètre d'ordre nématique dans notre description, nous montrons que soumettre le cortex à une concentration inhomogène de myosines doit conduire à l'apparition d'un flux de filaments et à la formation d'un anneau, ainsi qu'observé dans plusieurs systèmes expérimentaux, en particulier lors de la cytocinèse. Nous terminons ce travail par une analyse de la mécanique de formation d'un bleb unique induit par une rupture artificielle du cortex par ablation laser.

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47

Goodyear, Victoria A. "Participatory action research : challenging the dominant practice architectures of physical education." Thesis, University of Bedfordshire, 2013. http://hdl.handle.net/10547/297585.

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Research shows that the dominant pedagogical practices of physical education are irrelevant to young people in the 21st century, and that physical education currently exists in a time of innovation without change. Subsequently, physical education as a curriculum subject is at risk of becoming extinct unless the 'talked' about pedagogical innovations that provide authentic, relevant and transferable learning experiences can become sustainable 'actioned' futures. Therefore, the purpose of this thesis was to explore how a pedagogical innovation, the Cooperative Learning model, could be used over an enduring period of time. Participatory action research (PAR) was used as the methodology to scaffold the inquiry and to support eight secondary school physical education teachers' learning and use of Cooperative Learning during an academic year. This thesis considers how PAR enabled teachers to break the dominant practice architectures of physical education and how PAR supported teachers‘ use of an emergent pedagogical approach within and beyond the honeymoon period of implementation. In other words, how PAR facilitated teachers' ability to work beyond the dominant pedagogical practices of physical education and the practices endorsed by the school as an institution. Furthermore, how PAR sustained teachers' engagement with, and use of, the Cooperative Learning model. Indeed, Cooperative Learning was firstly immersed within the milieu of the practice architectures. Yet through the use of PAR the teachers were motivated to move beyond the honeymoon period and began to use the model within, with and then against the mess of the practice architectures. Subsequently, Cooperative Learning was emerging as the dominant pedagogical approach. However, this only occurred for some teachers where social connectivity and an emerging community of practice were significant variables in sustaining and adapting the use of Cooperative Learning. The contribution to knowledge is therefore the methodological processes of how to move beyond dominant pedagogical practices and facilitate innovation with change. In order for a pedagogical innovation to become a sustainable 'actioned' future its use is context dependent and PAR facilitates its sustainability. Furthermore, teacher learning should be advanced and teachers should be encouraged to create communicative spaces with colleagues and researcher facilitators.

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48

Perea, Fabián Carlos Antonio. "Physical parameters identification for a prototype of active magnetic bearing system." Master's thesis, Pontificia Universidad Católica del Perú, 2017. http://tesis.pucp.edu.pe/repositorio/handle/123456789/8623.

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In this thesis the algorithms and strategies for active magnetic bearing should be analysed, implemented and simulated in Matlab as well as experimentally tested in the real-time computation system for a prototype of active magnetic bearing. Develop a general method and algorithm identi cation for active magnetic bearings prototype and get real system parameters that allow generate the equation of state of the system to control its further development. The specific objectives in this Thesis are: Develop a data acquisition system for the AMBs. Analyse the mathematical model of the system from the real system. Conduct experiments of a physical model for data collection. Develop an identification algorithm for the parameters of the real AMBs. Validate system developed by testing the prototype.
Tesis

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49

Khan, Muhammad Sikandar Lal. "Enabling physical action in computer mediated communication : an embodied interaction approach." Licentiate thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-108569.

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50

Derbyshire, Denise. "Physical factors influencing the throwing action in netball and cricket players." Thesis, Stellenbosch : University of Stellenbosch, 2007. http://hdl.handle.net/10019/604.

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Dissertations / Theses on the topic 'Physical acting'

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