790 resultados para Engeström, Yrjö: Perspectives on activity theory


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Chronic pain is a complex disabling experience that negatively affects the cognitive, affective and physical functions as well as behavior. Although the interaction between chronic pain and physical functioning is a well-accepted paradigm in clinical research, the understanding of how pain affects individuals' daily life behavior remains a challenging task. Here we develop a methodological framework allowing to objectively document disruptive pain related interferences on real-life physical activity. The results reveal that meaningful information is contained in the temporal dynamics of activity patterns and an analytical model based on the theory of bivariate point processes can be used to describe physical activity behavior. The model parameters capture the dynamic interdependence between periods and events and determine a 'signature' of activity pattern. The study is likely to contribute to the clinical understanding of complex pain/disease-related behaviors and establish a unified mathematical framework to quantify the complex dynamics of various human activities.

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The good news with regard to this (or any) chapter on the future of leadership is that there is one. There was a time when researchers called for a moratorium on new leadership theory and research (e.g., Miner, 1975) citing the uncertain future of the field. Then for a time there was a popular academic perspective that leadership did not really matter when it came to shaping organizational outcomes (Meindl & Ehrlich, 1987; Meindl, Ehrlich, & Dukerich, 1985; Pfeffer, 1977). That perspective was laid to rest by "realists" in the field (Day & Antonakis, 2012a) by means of empirical re-interpretation of the results used to support the position that leadership does not matter (Lieberson & O'Connor, 1972; Salancik & Pfeffer, 1977). Specifically, Day and Lord (1988) showed that when proper methodological concerns were addressed (e.g., controlling for industry and company size effects; incorporating appropriate time lags) that the impact of top-level leadership was considerable - explaining as much as 45% of the variance in measures of organizational performance. Despite some recent pessimistic sentiments about the "curiously unformed" state of leadership research and theory (Hackman & Wageman, 2007), others have argued that the field has continued to evolve and is potentially on the threshold of some significant breakthroughs (Day & Antonakis, 2012a). Leadership scholars have been re-energized by new directions in the field and research efforts have revitalized areas previously abandoned for apparent lack of consistency in findings (e.g., leadership trait theory). Our accumulated knowledge now allows us to explain the nature of leadership including its biological bases and other antecedents, and consequences with some degree of confidence. There are other comprehensive sources that review the extensive theoretical and empirical foundation of leadership (Bass, 2008; Day & Antonakis, 2012b) so that will not be the focus of the present chapter. Instead, we will take a future-oriented perspective in identifying particular areas within the leadership field that we believe offer promising perspectives on the future of leadership. Nonetheless, it is worthwhile as background to first provide an overview of how we see the leadership field changing over the past decade or so. This short chronicle will set the stage for a keener understanding of where the future contributions are likely to emerge. Overall, across nine major schools of leadership - trait, behavioural, contingency, contextual, relational, sceptics, information processing, New Leadership, biological and evolutionary - researchers have seen a resurgence in interest in one area, a high level of activity in at least four other areas, inactivity in three areas, and one that was modestly active in the previous decade but we think holds strong promise for the future (Gardner, Lowe, Moss, Mahoney, & Cogliser, 2010). We will next provide brief overviews of these nine schools and their respective levels of research activity (see Figure 1).

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Anthropogenic disturbance of wildlife is of growing conservation concern, but we lack comprehensive approaches of its multiple negative effects. We investigated several effects of disturbance by winter outdoor sports on free-ranging alpine Black Grouse by simultaneously measuring their physiological and behavioral responses. We experimentally flushed radio-tagged Black Grouse from their snow burrows, once a day, during several successive days, and quantified their stress hormone levels (corticosterone metabolites in feces [FCM] collected from individual snow burrows). We also measured feeding time allocation (activity budgets reconstructed from radio-emitted signals) in response to anthropogenic disturbance. Finally, we estimated the related extra energy expenditure that may be incurred: based on activity budgets, energy expenditure was modeled from measures of metabolism obtained from captive birds subjected to different ambient temperatures. The pattern of FCM excretion indicated the existence of a funneling effect as predicted by the allostatic theory of stress: initial stress hormone concentrations showed a wide inter-individual variation, which decreased during experimental flushing. Individuals with low initial pre-flushing FCM values augmented their concentration, while individuals with high initial FCM values lowered it. Experimental disturbance resulted in an extension of feeding duration during the following evening foraging bout, confirming the prediction that Black Grouse must compensate for the extra energy expenditure elicited by human disturbance. Birds with low initial baseline FCM concentrations were those that spent more time foraging. These FCM excretion and foraging patterns suggest that birds with high initial FCM concentrations might have been experiencing a situation of allostatic overload. The energetic model provides quantitative estimates of extra energy expenditure. A longer exposure to ambient temperatures outside the shelter of snow burrows, following disturbance, could increase the daily energy expenditure by >10%, depending principally on ambient temperature and duration of exposure. This study confirms the predictions of allostatic theory and, to the best of our knowledge, constitutes the first demonstration of a funneling effect. It further establishes that winter recreation activities incur costly allostatic behavioral and energetic adjustments, which call for the creation of winter refuge areas together with the implementation of visitor-steering measures for sensitive wildlife.

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To create a more inclusive school, an increase in multidisciplinary cooperation is needed. One possible form of collaboration could encompass the special education teacher taking on the role of a consultant for other teachers in need of support in working with heterogeneous groups of pupils. Previous research shows that special education teachers see the role as consultant as diffuse and complex. The overarching aim of the present study involves deepening the knowledge on how consultation in a special educational context can be understood and developed based on teachers’ descriptions on this particular form of activity interpreted against various perspectives on consultation. The study is qualitative in nature and rests on a hermeneutic interpretive research tradition in combination with an abductive approach. The theoretical framework consists of two different approaches to consultation: the directive and the non-directive approach. The approaches differ regarding particular emphasis on advice and reflection during the consultation and with respect to who or what should be the focus of the consultation. The two approaches are here studied through various theories such as social learning theory, Bruner's theory of scaffolding, Roger’s humanist psychology, and constructivism. Semi-structured interviews were held with eighteen special education teachers (n=9) and class teachers (n=9) working in the compulsory school. The overall interpretation of the results shows that special education consultation can be understood as three different types of consultation. Consultation as counseling which harmonizes with the directive perspective on consultation is the most prominent type. In the consultation as counseling conversation, the special educational knowledge transfer is central and the focus is placed on the pupil. Although special education knowledge transfer emerges as a unique aspect of special education consultation, there are several inherent challenges in this type of consultation that can be addressed in that teachers also describe two other types of consultation. In the reflective consultation, there is a move away from the pupil focus and toward a focus on the class teacher and the use of reflection. The reflective consultation harmonizes with the non-directive approach to consultation. This type of consultation does not as of yet have a prominent place in the Finland-Swedish school context and at this stage it is not seen as a legitimate type of consultation according to the teachers’ descriptions. Despite this, certain aspects of the reflective conversation could be given more space in the development of consultation within special educational contexts. The co-operative consultation is characterized by the teachers acting as teammates and using professional exchange as a strategy for consultation. Both teachers' knowledge is seen as central, and rather than the special education teacher acting as the expert and moderator, the teachers control the consultation together and jointly move the work along. The co-operative consultation enables the focus to move from the pupil toward the context, which can lead to the development of inclusive practices. The results indicate that this type of consultation holds potential in the development of special educational consultation that takes place between equal colleagues. The co-operative consultation opens up for a third collaborative approach to consultation, where aspects of the directive and non-directive perspective can merge and develop. The thesis concludes with the proposal that special pedagogical consultation can be understood from an integrated perspective. The characteristics of the consultation can vary depending on the type of problem or situation, while co-operative consultation can be seen as the ideal as equal colleagues meet in consultation conversations. In order to develop the co-operative consultation, both teachers are required to have knowledge of consultation as a practice, to be part of a collaborative school climate, and that teachers are provided with enough time to take part in consultations.

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Tutkimukseni käsittelee J. A. Hollon (1885–1967) sivistyskasvatusajattelua. Hollo oli monitoiminen kulttuurivaikuttaja, joka toimi kriitikkona, kirjailijana, suomentajana ja kasvatustieteilijänä. Häntä voidaan pitää J. V. Snellmanin rinnalla yhtenä merkittävimpänä suomalaisena kasvatusajattelijana. Hänen kasvatusajattelustaan ei ole kuitenkaan aiemmin tehty väitöskirjatason tutkimusta. Tutkimuskysymykseni ovat seuraavat: 1. Millainen on Hollon näkemys kasvatuksesta, kasvatuksen maailmasta ja kasvatuksen teoriasta? 2. Mikä on Hollon käsitys kasvattajan ja kasvatettavan merkityksestä kasvatustapahtumassa? 3. Mitä asioita sisältyy sivistyskasvatuksen eli kasvamaan saattamisen elementteihin? Tutkimukseni on kasvatusfilosofinen. Tutkimusmenetelmäni on systemaattinen analyysi ja lähestymistapani on hermeneuttinen. Tutkimukseni pääaineistona ovat Hollon kasvatusta koskevat kirjoitukset, joista tärkeimmät ovat Mielikuvitus ja sen kasvattaminen I-II (1918, 1919), Kasvatuksen maailma (1927), Kasvatuksen teoria (1927) ja Itsekasvatus ja elämisen taito (1931). Hollon mukaan kasvatuksen maailma on suhteellisen itsenäinen elämänmuoto (Lebensform), jolla on oma ontologinen erityislaatunsa, so. sui generis. Kasvatusoppia ei pidä redusoida psykologiaan tai filosofiaan, koska sillä tavoin se menettää tieteellisen itsenäisyytensä. Hollon mielestä kasvatuksen teoria on teoria käytäntöä varten. Kasvatuksen teorian luomisessa tulee ottaa huomioon kasvatuksen maailman erityispiirteenä oleva kokonaisvaltainen näkökulma ja elämän palvelemisen päämäärä. Kasvattaminen on aina myös eettistä toimintaa. Kasvatuksen tavoitteena on hyvä elämä. Hollon mukaan kasvattajan tehtävä on luoda kasvatettavalleen eheä sivistyksellinen perusta. Tämä voi tapahtua vain laaja-alaisen sivistyskasvatuksen avulla, jonka runkona on antiikin humanistinen sivistysperinne. Sivistyskasvatukseen kuuluvat älyllinen, eettinen, uskonnollinen, esteettinen ja toiminnallinen kasvatus. Mielikuvituksen avulla kasvattaja voi yhdistää kasvatuksen osa-alueet eheäksi kokonaisuudeksi. Ilman mielikuvitusta erilaiset ilmiöt olisivat pirstaleisina, toisistaan erillisinä osina ihmisen mielessä. Opettajan persoona on merkittävä tekijä kasvatuksessa. Se tulee ottaa huomioon opettajankoulutuksen eli kasvattajan kasvattamisen valinnoissa. Opettaja-kasvattajan on tärkeää opiskella laajasti humanistisia opintoja, koska kasvatuksessa on kysymys ihmisestä. Ennen kaikkea kasvattajan eettistä ja esteettistä kykyä tulee harjoituttaa. Näin hän oppii käyttämään mielikuvitustaan kasvatustapahtumassa siten, että hän tulee kasvatuksellisesti näkeväksi kasvamaan saattajaksi, joka ymmärtää sen, mikä kussakin tilanteessa vaatii erityistä huomiota. Tutkimukseni osoittaa, että Hollon henkitieteellinen ja fenomenologis-hermeneuttinen kasvatusnäkemys ei ole vain vastaparadigma empiiriselle kasvatustieteelle, vaan myös nykyajan teknis-taloudelliselle eetokselle, joka yhtäältä uhkaa välineellistää kasvatuksen ja toisaalta väärällä tavoin tieteellistää kasvatuksen tutkimuksen. Tämän takia kasvatusoppi kysymyksineen uhkaa siirtyä kasvatuskeskustelussa syrjemmälle, jopa hävitä kokonaan. Kasvatuksen ja kasvatuksen tutkimuksen vaarana on niiden liiallinen sitouttaminen tuotantoelämän jatkeeksi, minkä seurauksena on ihmisyyden toteuttamisen vaikeutuminen. Tutkimuksen lopuksi esitän ideaalikoulunäkemykseni, joka perustuu osittain Hollon kasvatusnäkemykseen. Hollon näkemys on yhä ajankohtainen ja merkittävä kontribuutio kasvatusta, sen teoriaa ja käytäntöä koskevaan keskusteluun.

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Ellagitannins are secondary metabolites that are produced by plants. Among other features, they are assumed to function as plants’ defensive compounds against plant-eating herbivores. This thesis focuses on a theory, which suggests that the biological activity of ellagitannins is based on their tendency to oxidize at the highly alkaline gut conditions of insect herbivores (oxidative activity). To study the biological activities of ellagitannins, a wide variety of structurally different ellagitannins were purified from different plant species by using liquid chromatographic techniques. The structures were characterized with the aid of spectrometric methods. Based on the acquired data, it was also possible to create a scheme, which enables the classification and even identification of ellagitannins from plant extracts without the need to isolate each compound for individual characterization. The biological activities of ellagitannins were determined with methods that are based on the abilities of the compounds to scavenge radicals, chelate iron ions, and on their rate of oxidation at high pH. The results showed that ellagitannins possess oxidative activities both at high and neutral pH, and that their activities depend on structure. The occurrence, distribution and content of ellagitannins in Finnish plant species were also studied. The specific ellagitannin profiles of the studied plant species were found to correlate well with their taxonomic classification.

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This study explored 6 part-time graduate students' perspectives on course/instructor evaluation. The purpose was to explore whether a link exists between the evaluation for course and instructors as contained in the Faculty of Education courselinstructor evaluation form and the needs of part-time students enrolled in that program. The literature review provided contextual information concerning the 3 main subject areas based upon which the research questions were designed: learner needs in the context of part-time graduate students, courselinstructor eval~ation, and the potential lack of congruency between the 2. Using a semistructured interview process, participants identified criteria important or relevant to the evaluation process and incongruent with the course/instructor evaluation form. A qualitative research methodology using a grounded theory approach contributed to the theory on the nature of course evaluation instruments in a graduate program and addressed the notion of where power was situated within the evaluation process. Findings suggested that the concepts of relevance and the instructor's role that participants identified as important in their graduate learning experience were congruent with what they considered important components of the course/instructor evaluation form. Participants noted a lack of congruency between their expectations of a quality graduate learning experience and the format, content, intent, and timing of the evaluation process. The study confirmed that students did want a voice in the evaluation of their learning experience at both the course and program levels.

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Dans de nombreuses sociétés industrialisées, une grande valeur est attribuée au jeu des enfants, principalement parce que le jeu est considéré comme étant une composante essentielle de leur développement et qu’il contribue à leur bonheur et à leur bien-être. Toutefois, des inquiétudes ont récemment été exprimées au regard des transformations qui s’opèrent dans le jeu des enfants, notamment en ce qui a trait à la réduction du temps de jeu en plein air. Ces transformations ont été attribuées, en grande partie, à une perception de risques accrus associés au jeu en plein air et à des changements sociaux qui favorisent des activités de loisirs plus structurées et organisées. L’inquiétude concernant la diminution de l’espace-temps accordé au jeu des enfants est d’ailleurs clairement exprimée dans le discours de la santé publique qui, de plus, témoigne d’un redoublement de préoccupations vis-à-vis du mode de vie sédentaire des enfants et d’une volonté affirmée de prévention de l'obésité infantile. Ainsi, les organisations de santé publique sont désormais engagées dans la promotion du jeu actif pour accroître l'activité physique des enfants. Nous assistons à l’émergence d’un discours de santé publique portant sur le jeu des enfants. À travers quatre articles, cette thèse explore le discours émergeant en santé publique sur le jeu des enfants et analyse certains de ses effets potentiels. L'article 1 présente une prise de position sur le sujet du jeu en santé publique. J’y définis le cadre d'analyse de cette thèse en présentant l'argument central de la recherche, les positions que les organisations de santé publique adoptent vis-à-vis le jeu des enfants et les répercussions potentielles que ces positions peuvent avoir sur les enfants et leurs jeux. La thèse permet ensuite d’examiner comment la notion de jeu est abordée par le discours de santé publique. L'article 2 présente ainsi une analyse de discours de santé publique à travers 150 documents portant sur la santé, l'activité physique, l'obésité, les loisirs et le jeu des enfants. Cette étude considère les valeurs et les postulats qui sous-tendent la promotion du jeu comme moyen d’améliorer la santé physique des enfants et permet de discerner comment le jeu est façonné, discipliné et normalisé dans le discours de santé publique. Notre propos révèle que le discours de santé publique représente le jeu des enfants comme une activité pouvant améliorer leur santé; que le plaisir sert de véhicule à la promotion de l’activité physique ; et que les enfants seraient encouragés à organiser leur temps libre de manière à optimiser leur santé. Étant donné l’influence potentielle du discours de santé publique sur la signification et l’expérience vécue du jeu parmi les enfants, cette thèse présente ensuite une analyse des représentations qu’ont 25 enfants âgés de 7 à 11 ans au regard du jeu. L’article 3 suggère que le jeu est une fin en soi pour les enfants de cette étude; qu'il revêt une importance au niveau émotionnel; et qu'il s’avère intrinsèquement motivé, sans but particulier. De plus, l’amusement que procure le jeu relève autant d’activités engagées que d’activités sédentaires. Enfin, certains enfants expriment un sentiment d'ambivalence concernant les jeux organisés; tandis que d’autres considèrent parfois le risque comme une composante particulièrement agréable du jeu. De tels résultats signalent une dissonance entre les formes de jeux promues en santé publique et le sens attribué au jeu par les enfants. Prenant appui sur le concept de « biopédagogies » inspiré des écrits de Michel Foucault, le quatrième article de cette thèse propose un croisement des deux volets de cette étude, soit le discours de santé publique sur le jeu et les constructions du jeu par les enfants. Bien que le discours de la santé publique exhortant au «jeu actif» soit reproduit par certains enfants, d'autres soulignent que le jeu sédentaire est important pour leur bien-être social et affectif. D’autre part, tandis que le « jeu actif » apparait, dans le discours de santé publique, comme une solution permettant de limiter le risque d'obésité, il comporte néanmoins des contradictions concernant la notion de risque, dans la mesure où les enfants ont à négocier avec les risques inhérents à l’activité accrue. À terme, cet article suggère que le discours de santé publique met de l’avant certaines représentations du jeu (actifs) tandis qu’il en néglige d’autres (sédentaires). Cette situation pourrait donner lieu à des conséquences inattendues, dans la mesure où les enfants pourraient éventuellement reconfigurer leurs pratiques de jeu et les significations qu’ils y accordent. Cette thèse n'a pas pour but de fournir des recommandations particulières pour la santé publique au regard du jeu des enfants. Prenant appui sur la perspective théorique de Michel Foucault, nous présentons plutôt une analyse d’un discours émergeant en santé publique ainsi que des pistes pour la poursuite de recherches sur le jeu dans le domaine de l’enfance. Enfin, compte tenu des effets potentiels du discours de la santé publique sur le jeu des enfants, et les perspectives contemporaines sur le jeu et les enfants, la conclusion offre des pistes de réflexion critique.

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Las organizaciones en la actualidad deben encontrar diferentes maneras de sobrevivir en un tiempo de rápida transformación. Uno de los mecanismos usados por las empresas para adaptarse a los cambios organizacionales son los sistemas de control de gestión, que a su vez permiten a las organizaciones hacer un seguimiento a sus procesos, para que la adaptabilidad sea efectiva. Otra variable importante para la adaptación es el aprendizaje organizacional siendo el proceso mediante el cual las organizaciones se adaptan a los cambios del entorno, tanto interno como externo de la compañía. Dado lo anterior, este proyecto se basa en la extracción de documentación soporte valido, que permita explorar las interacciones entre estos dos campos, los sistemas de control de gestión y el aprendizaje organizacional, además, analizar el impacto de estas interacciones en la perdurabilidad organizacional. ​

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El propósito principal de esta monografía es ofrecer una perspectiva crítica sobre el conflicto latente en la Península Coreana, haciendo un acercamiento al mismo desde un marco teórico asentado en el realismo estructural de Kenneth Waltz. De este modo, se busca responder a cuestiones sobre los intereses estatales como fundamento básico de las estrategias de mantenimiento de la Estructura en regiones geopolíticamente sensibles. Al final, se llega a la conclusión afirmando que la Estructura ejerce una serie de funciones para garantizar su preservación mediante una acción de convergencia en la conducta de los Estados. Esta realidad ha mantenido a la Península Coreana sin un conflicto bélico en los últimos 50 años, muy a pesar de estar al borde del mismo en varias ocasiones, ya que de llegarse a presentar se rompería la estabilidad de la región, y por ende el Equilibrio de Poderes estaría en grave riesgo.

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Desde la noción universal sobre la empresa como un sistema de interacción con un entorno determinado para alcanzar un objetivo, de manera planificada y en función de satisfacer las demandas de un mercado mediante la actividad económica, su viabilidad, sostenibilidad y crecimiento dependerán, por supuesto, de una serie de estrategias adecuadas no solo para tales fines, sino también para enfrentar diversidad de agentes endógenos y exógenos que puedan afectar el normal desempeño de su gestión. Estamos hablando de la importancia de la resiliencia organizacional y del Capital Psicológico. En un escenario tan impredecible como el de la economía mundial, donde la constante son los cambios en su comportamiento —unos propios de su dinámica e interdependencia, naturales de fenómenos como la globalización, y otros derivados de eventos disruptivos— hoy más que nunca es necesario implementar el modelo de la empresa resiliente, que es aquella entidad capaz de adaptarse y recuperarse frente a una perturbación. Al mismo tiempo, más allá de su tamaño, naturaleza u objeto social, es indispensable reconocer básicamente que toda organización está constituida por personas, lo cual implica la trascendencia que para su funcionamiento tiene el factor humano-dependiente, y por lo tanto se crea la necesidad de promover el Capital Psicológico y la resiliencia a nivel de las organizaciones a través de una cultura empresarial.

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The essays in this collection were originally delivered as part of the Samuel Beckett lecture series at Trinity College Dublin, Samuel Beckett's alma mater. The contributors include eminent Beckett scholars such as Linda Ben-Zvi, Enoch Brater, Ruby Cohn and Stan Gontarski, theatre scholars such as Herbert Blau and Joseph Roach, practitioners such as the Irish actor, Barry McGovern, and cultural critics such as Marina Warner and Terry Eagleton. The collection sheds new light on Beckett's enigmatic theater, offering new perspectives on Beckett's use of language and silence, on his attitudes toward the body, on those who influenced him and on those he has influenced (including Suzan-Lori Parks and Femi Osofisan), and on Beckett and the art of self-collaboration. Each contributor places the playwright into a network of genealogies and legacies and his work into important historical, cultural, and aesthetic contexts. Together, the essays demonstrate Beckett's impact on theater, performance, and visual arts during the latter half of the twentieth century and serve to open up new directions for Beckett studies.

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From its roots in strategic management theory, stakeholder management has been adopted by the construction management academic community and applied as a valid paradigm around which research work has been generated aiming to improve project effi ciencies and effectiveness. However, academics have argued that stakeholder management should move away from purely theoretical discussions and engage more with the realities of construction project work. This paper re-appraises the stakeholder management concept for the construction domain by re-thinking some of the fundamental principles and ideals present within the more general stakeholder theory literature. It engages with issues which researchers have arguably failed to acknowledge and calls for a re-evaluation of construction stakeholder management research by presenting a review around four distinctive themes: the moral obligations of engaging with stakeholders against the business and efficiency driven imperatives of construction organisations; the contrast between theoretical abstractions and empirically grounded research; the tensions between theoretical convergence versus calls for multiple and divergent perspectives on stakeholder management and the practicalities of conducting stakeholder management in the construction domain. Such a critical re-appraisal of stakeholder management thinking both generates new lines of enquiry and promises to help inform and shape current and future industry practice.