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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
71

Imigração, atrito e complexidade : a produção das oclusivas surdas iniciais do inglês e do português por sul-brasileiros residentes em Londres

Kupske, Felipe Flores January 2015 (has links)
A pesquisa em Atrito linguístico de L1 tem testemunhado um desenvolvimento desde os anos 80. No entanto, ainda são poucos os estudos acerca do português brasileiro (PB) e imigrantes brasileiros em comunidades de L2 dominante. Assim, partindo de uma visão da linguagem como um Sistema Adaptativo Complexo (CAS) (e.g., LARSENFREEMAN; CAMERON, 2008; BECKNER et al. 2009;. MERCER, 2013), este estudo investigou a produção das plosivas surdas do PB-L1 e do Standard Southern British English-L2 (SSBE) por imigrantes adultos do Sul do Brasil residentes em Londres, testando os efeitos dos primeiros dez anos (tempo de residência - LOR) na comunidade britânica. Usando um desenho transversal, este estudo explorou a produção de plosivas surdas em posição inicial de palavra de trinta e dois participantes, com idades entre 18-40: imigrantes brasileiros que viviam em Londres durante períodos de tempo variados (chegada no Reino Unido com idade > 18 anos), monolíngues do SSBE e monolíngues do BP. Os alvos do BP /p/, /t/ e /k/ foram apresentados na frase-veículo “Eu Diria _______”. Os alvos para o SSBE foram apresentados na frase “I would say_______”. Os alvos em posição inicial de palavra foram gravados aleatoriamente três vezes por cada participantes. Para a produção SSBE-L2, os resultados mostraram que falantes com um LOR entre zero e três anos diferem dos controles SSBE (p <0,05) para todas as três plosivas surdas inglês britânico. Imigrantes com um LOR entre quatro e sete anos também diferem dos controles (p<0,05) para [p] e [t], mas não divergem para [k] (p>0,05). Aqueles que residem em Londres entre oito e onze anos não apresentaram diferenças em relação aos monolíngues do inglês britânico (p>0,05), e apresentaram os maiores valores médios de VOT. Em relação à produção do VOT para o PB-L1, a produção dos participantes com o menor período de tempo em Londres não era diferente da dos monolíngues do PB. Por outro lado, imigrantes com um LOR entre quatro e sete anos produziram valores de VOT diferentes dos produzidos pelos controles para [t] e [k], apresentando valores médios mais elevados (p <0,001), mas não para a [p] (p>0,05). Finalmente, os imigrantes que eram residentes em Londres entre oito e onze anos revelaram diferenças em relação aos controles do PB, apresentando os maiores valores de VOT (p <0,001) para todos os sons plosivos considerados. Esses resultados fornecem evidência para o atrito linguístico de L1 enfrentado pelos falantes nativos do PB (shortlag VOT) imersos em uma comunidade de L2 dominante (long-lag VOT), bem como para o efeito de LOR, já que os valores de VOT tendem a aumentar em função do tempo de residência. Esses dados confirmam, como previsto por uma visão da linguagem como um CAS, que o sistema de L1 não é rígido e pode mudar durante o tempo de vida de um falante. Nossos resultados sugerem que as línguas naturais dependem de uma variedade de agentes, além de serem adaptativas e sujeitas a constantes mudanças. / The study of L1 attrition has witnessed some development since the 1980s; however, there are still few studies on Brazilian Portuguese (BP) and on Brazilian immigrants in L2-dominant communities. Thus, departing from a view of language as a Complex, Adaptive System (CAS) (e.g. LARSEN-FREEMAN; CAMERON, 2008; BECKNER et al., 2009; MERCER, 2013), this study investigated the production of BP-L1 and Standard Southern British English-L2 (SSBE) voiceless plosives by Southern Brazilian adult immigrants in London, testing the effects of the first ten years (length of residence - LOR) in the British community. Using a cross-sectional design, this study explored the production of voiceless plosives in word initial position by thirty-two participants, aged 18-40: Brazilian immigrants that had been living in London for differing lengths of time (arrival in UK aged > 18 years), monolingual SSBE controls, and monolingual BP controls. BP target sounds /p/, /t/ and /k/ were presented in the carrier sentence Eu diria _______. SSBE targets were presented in the sentence I would say_______. Targets were elicited in word-initial position, and were randomly recorded three times by the participants. For SSBE-L2 production, the results showed that speakers with a LOR between zero and three years differ from the SSBE controls (p<.05) for all three voiceless British English plosives. Immigrants with a LOR between four and seven years differ from the controls (p<.05) for [p] and [t], but do not diverge from them for [k] (p>.05). Those residing in London between eight and eleven years do not present differences from the British English monolinguals (p.>05), and presented the highest mean values. With regard to BP-L1 VOT production, the production by participants with a shorter period of time in London was not different from the BP monolingual controls. On the other hand, immigrants with a LOR between four and seven years yielded different VOT values from those produced by the controls for [t] and [k], presenting higher mean values (p<.001), but not for [p] (p>.05). Finally, immigrants that had been residing in London between eight and eleven years revealed differences from the BP controls, presenting the highest VOT values (p<.001) for all the plosives. These findings provide evidence for first language attrition faced by short-lag VOT speakers immersed in long-lag VOT L2- dominant communities, as well as for the effect of LOR, as values tend to increase through time. These data confirm, as predicted by a view of language as a CAS, that the L1 system is not rigid and might change during the life span. Our results suggest that language depends on a variety of agents and is also adaptive, being subject to constant change.
72

Understanding the Complexity of Product Returns Management: A Complex Adaptive Systems Theory Perspective

Espinosa, Jennifer Anne 26 May 2016 (has links)
The core essence of a marketing transaction is the exchange of value between two parties. Quite often, the exchange of value describes a customer purchasing a product from a company. When purchasing products, the exchange of value can often fail due to product defects or customer dissatisfaction. When the marketing exchange fails, customers often desire an avenue for recourse to right the exchange imbalance. Accepting and quickly processing product returns represents a strategic tool companies can leverage to maintain healthy relationships with customers, despite an exchange failure. Effectively managing product returns also benefits companies financially, by reducing inventory levels, costs, and the risk of product obsolescence. Despite providing both relationship management and financial benefits, numerous companies struggle to manage product returns effectively. In a time when companies are facing a growing number of product returns due to omni-channel retailing and online shopping, implementing an effective system to manage product returns has become a vital strategic tool necessary to maintain competitiveness. First, the current research answers the question of why do companies struggle with product returns? by identifying the important components of an effective product returns system. Informed by complex adaptive systems theory and based on a qualitative, grounded theory analysis, the current research finds that the hidden complex nature of managing product returns prevents numerous companies from implementing an effective system to mange returns. Managing product returns requires five important components (firm capabilities, employees, the returns management information system, organizational climate, and the customer service boundary), which interact with each other multiple times to process a product return. After identifying the important components and interactions within a product returns system, Essay I integrates the information together to form a substantive theory of the complexity of product returns management. The substantive theory implies that companies looking to improve their management of product returns need to understand and invest in multiple components within the product returns system. Second, the current research answers the question of how do the employees, returns management information system, and climate for creativity components of a product returns system relate to a firm’s flexibility, adaptability, and performance? To answer this research question, this dissertation empirically evaluates the role these three components play in shaping a firm’s flexibility, adaptability, subjective performance and relationship quality by analyzing data collected through an online survey with 102 US managers with experience in product returns. The empirical analysis indicates that employee decision-making resources show a statistically significant negative relationship with firm adaptability, while the firm’s climate for creativity and flexibility show a statistically significant positive relationship with firm adaptability. Firm adaptability shows statistically significant positive relationships with subjective performance and relationship quality. Firm adaptability acts as a partial or full mediator in all of these relationships. The combined findings of Essay I and Essay II point to the importance of product returns as a strategic relationship management tool. Firms that can effectively manage product returns give employees more flexibility to respond to problems, are better able to make structural changes, have higher subjective performance ratings, and better quality relationships with customers.
73

The engineering of emergence in complex adaptive systems

Potgieter, Anna Elizabeth Gezina 22 September 2004 (has links)
Agent-oriented software engineering is a new software engineering paradigm that is ideally suited to the analysis and design of complex systems. Open distributed environments place a growing demand on complex systems to be adaptive as well. Complex systems that can learn from and adapt to dynamically changing environments are called complex adaptive systems. These systems are characterized by emergent behaviour caused by interactions between system components and the environment. Agent-oriented software engineering methodologies attempt to control emergence during analysis and design by engineering the complex system in such a way that the correct emergent behaviour results during run-time. In a complex adaptive system however, emergent behaviour cannot be predicted during analysis and design, as it evolves only after implementation. By restricting emergent behaviour, as is done in most agent-oriented software engineering approaches, a complex system cannot be fully adaptive as well. We propose the BaBe methodology that will enable a complex system to be adaptive by learning from its environment and modifying its behaviour during run-time. This methodology adds a run-time emergence model consisting of distributed Bayesian behaviour networks to the agent-oriented software engineering lifecycle. These networks are initialised by the human software engineer during analysis and design and deployed by Bayesian agencies (also complex adaptive systems). The Bayesian agents are simple, and collectively they implement distributed Bayesian behaviour networks. These networks, being specialized Bayesian networks, enable the Bayesian agents to collectively mine relationships between emergent behaviours and the interactions that caused them to emerge, in order to adapt the behaviour of the system. The agents are organized into heterarchies of agencies, where each agency activates one or more component behaviour depending on the inference in the underlying Bayesian behaviour network. These agencies assist the human software engineer to bridge the gap between the implementation and the understanding of emergent behaviour in complex adaptive systems. Due to the simplicity of the agents and the minimal communication amongst them, they can be implemented using a commercially available component architecture. We describe a prototype implementation of the Bayesian agencies using Sun’s Enterprise JavaBeans™ component architecture. / Thesis (PhD (Computer Science))--University of Pretoria, 2005. / Computer Science / unrestricted
74

A criação do conhecimento na indústria de celulose: estudos de casos múltiplos

Pineyrua, Diego Gilberto Ferber 25 September 2015 (has links)
Submitted by Nadir Basilio (nadirsb@uninove.br) on 2016-06-06T20:49:26Z No. of bitstreams: 1 Diego Gilberto Ferber Pineyrua.pdf: 1464888 bytes, checksum: ccfec98efbaa1f52748896f92080de3d (MD5) / Made available in DSpace on 2016-06-06T20:49:26Z (GMT). No. of bitstreams: 1 Diego Gilberto Ferber Pineyrua.pdf: 1464888 bytes, checksum: ccfec98efbaa1f52748896f92080de3d (MD5) Previous issue date: 2015-09-25 / This thesis identifies the characteristics of the knowledge creation process in cellulose companies in the context of a complex adaptive system. The sector has a complex supply chain, including the steps of reforestation, timber, cellulose production and paper manufacturing. It is characterized by being capital intensive and labor-intensive, have forest based and strong land concentration, all of which lead to economic concentration. The cellulose industry has gone through major processes of mergers and acquisitions, where tacit knowledge is acquired and the new company needs to hire people with tacit knowledge, converting it into tacit knowledge of another person. It has an export bias and has significant technological advances. The application of the theory of complex adaptive systems in an organizational environment led to knowledge management in a new direction The process of knowledge creation, is a part of the activities of a knowledge management program. Studies on the tacit and explicit knowledge approach the investigation of the knowledge creation process. From the literature, it has been prepared eleven study proposals that formed the basis for the development of field research in five major companies in the cellulose sector, four in Brazil and one in Uruguay. With the development of propositions, assumptions have been made making the connection between the main research question, gathering the assumptions and propositions in two study centers, to thus form the basis of the integral guiding questionnaire interview script. The methodology of the study predicted the development of the method of multiple case studies, through which the information of the companies were analyzed together and crosswise. Empirical evidence shows that companies have few features of a knowledge organization. To the knowledge conversion modes proposed a new nomenclature for the process of knowledge creation, and adaptation, disclosure, disposition and internalization. It was observed by environmental monitoring forms the interaction and interdependence characteristics of a complex adaptive system in the companies surveyed. There is a relationship among suppliers, specialized companies, customers and competitors who maintain a flow of information and market trends. The information and external expertise enable the development of employees with skills to organize themselves quickly and redirect efforts to the entire organization. At the end we present the model of knowledge creation for the cellulose companies with shares used in the adaptation of the environment and organizational knowledge. / Este trabalho identifica as características do processo de criação do conhecimento nas empresas de celulose no contexto de um sistema adaptativo complexo. O setor possui uma cadeia produtiva bastante complexa, abrangendo as etapas de reflorestamento, produção de madeira, fabricação de celulose e fabricação de papel. Caracteriza-se por ser intensivo em capital e mão-de-obra, ter base florestal e forte concentração fundiária, aspectos que levam à concentração econômica. O setor de celulose passou por grandes processos de fusões e aquisições, onde o conhecimento tácito é adquirido e a nova empresa precisa contratar pessoas com conhecimento tácito, convertendo-o em conhecimento tácito de outra pessoa. Possui um viés exportador e conta com significativos avanços tecnológicos. A aplicação da teoria de sistemas adaptativos complexos em um ambiente organizacional levou a gestão do conhecimento a uma nova direção O processo de criação do conhecimento, constitui uma parte das atividades de um programa de gestão do conhecimento. Os estudos sobre os conhecimentos tácitos e explícitos abordam as investigações do processo de criação do conhecimento. A partir do levantamento bibliográfico, foram elaboradas onze proposições de estudo que serviram de base para o desenvolvimento da pesquisa de campo junto a cinco grandes empresas do setor de celulose, sendo quatro do Brasil e uma do Uruguai. Com a elaboração das proposições, foram formuladas premissas fazendo a ligação entre a questão principal da pesquisa, agrupando as premissas e proposições em dois pólos de estudo, para assim, formar a base orientadora do questionário integrante do roteiro da entrevista. A metodologia utilizada no estudo previu o desenvolvimento do método de estudos de casos múltiplos, através do qual, as informações das empresas foram analisadas em conjunto e de forma cruzada. As evidências empíricas demonstram que as empresas possuem poucas características de uma organização do conhecimento. Para os modos de conversão do conhecimento é proposto uma nova nomenclatura para o processo de criação do conhecimento, sendo adaptação, revelação, disposição e interiorização. Observou-se pelas formas de monitoramento do ambiente as características de interação e interdependência de um sistema adaptativo complexo nas empresas pesquisadas. Existe um relacionamento entre os fornecedores, empresas especializadas, clientes e concorrentes que mantêm um fluxo de informações e tendências do mercado. As informações e conhecimentos externos possibilitam o desenvolvimento dos colaboradores com habilidades de se auto-organizarem rapidamente e redirecionarem esforços para toda a organização. Ao final é apresentado o modelo de criação do conhecimento para as empresas de celulose com as ações utilizadas na adaptação do ambiente e dos conhecimentos organizacionais.
75

Governing Climate Change Adaptation Through Insurance: Complexity, Risk and Justice Concerns?

January 2020 (has links)
abstract: Climate adaptation has not kept pace with climate impacts which has formed an adaptation gap. Increasingly insurance is viewed as a solution to close this gap. However, the efficacy and implications of using insurance in the climate adaptation space are not clear. Furthermore, past research has focused on specific actors or processes, not on the interactions and interconnections between the actors and the processes. I take a complex adaptive systems approach to map out how these dynamics are shaping adaptation and to interrogate what the insurance climate adaptation literature claims are the successes and pitfalls of insurance driving, enabling or being adaptation. From this interrogation it becomes apparent that insurance has enormous influence on its policy holders, builds telecoupling into local adaptation, and creates structures which support contradictory land use policies at the local level. Based on the influence insurance has on policy holders, I argue that insurance should be viewed as a form of governance. I synthesize insurance, governance and adaptation literature to examine exactly what governance tools insurance uses to exercise this influence and what the consequences may be. This research reveals that insurance may not be the exemplary adaptation approach the international community is hoping for. Using insurance, risk can be reduced without reducing vulnerability, and risk transfer can result in risk displacement which can reduce adaptation incentives, fuel maladaptation, or impose public burdens. Moreover, insurance requires certain information and legal relationships which can and often do structure that which is insured to the needs of insurance and shift authority away from governments to insurance companies or public-private partnerships. Each of these undermine the legitimacy of insurance-led local adaptation and contradict the stated social justice goals of international calls for insurance. Finally, I interrogate the potential justice concerns that emerged through an analysis of insurance as a form of adaptation governance. Using a multi-valent approach to justice I examine a suite of programs intended to support agricultural adaptation through insurance. This analysis demonstrates that although some programs clearly attempted to consider issues of justice, overall these existing programs raise distributional, procedural and recognition justice concerns. / Dissertation/Thesis / Doctoral Dissertation Sustainability 2020
76

Influences of External Literacy Assessment on Curricular Decisions: A Systems-Based Study of a Local School District

Larson, Tiffany R 08 1900 (has links)
National and state-based assessments have been a common practice for the past several decades. These assessments often come with high-stake consequences for students and schools, which tends towards the creation of a test-centric environment where educators prioritize test-based instruction to prepare students to be successful on those assessments. The over-arching purpose of this qualitative study was to explore how mandated high-stakes testing influences educators specifically within a complex system by first seeking to identify ways educators at different levels within the system—the classroom, campus, and district levels—perceive these testing influences. This study is based on complexity theory with a particular focus on complex adaptive systems (CAS) and frameworks from human systems dynamics (HSD), which helped to identify key tensions within a complex learning ecology. This study used thematic analysis of interview data from the classroom, campus, and district levels. Analysis also included mapping the emergent themes and patterns onto a CAS model for each level. Findings revealed a tension between a complicated, linear approach and a complex approach to curricular and instructional decisions that is moving those decisions ever closer to standardization. This study includes implications and recommendations for balancing these tensions for a healthy, complex learning ecology.
77

"Strategy in the skin : strategic practices of South Africa's official development assistance"

Williamson, Charmaine Mavis January 2014 (has links)
This study set out to explore how Official Development Assistance was practised in South Africa. An exploratory narrative design was followed to uncover the ‘strategy in the skin’ of strategy practitioners in the unit of analysis and to respond, therefore, to the research questions. This study has contributed to the body of knowledge in that it has brought together an alternative confluence of three theoretical perspectives of strategy as practice; complex adaptive systems and organisational hypocrisy and has explored the impact of the practice lens on these standpoints. While there has been extensive research on each of the theoretical perspectives, there has not yet been a study that has drawn together the three perspectives in relation to an empirical unit of analysis such as Official Development Assistance practices and practitioners. The study responded to a knowledge gap in relation to how public sector organisations, such as government units and the strategy practitioners of such units, practice strategy beyond the reified, formalised conceptions of strategy and in relation to their inhabiting complex, political organisational systems. The study arrived at two central theoretical findings. Firstly, that strategising represents a calibration of strategic practices towards strategic outcomes through the activities of complex adaptive practitioners v within the more politically inclined organisation. Secondly, that beyond the text of strategy, there is sub-text that is equally part of the micro strategy towards strategic outcomes.The skilful and sometimes delicate balancing act, that strategists perform to legitimise the calibrated combinations of action and politics in organisational strategy, equally needs nuanced, subtle and more complex forms of organisational communication. The study, therefore, makes the claim that complex adaptive systems and the characteristics of political organisations (as not being geared to action) are inherently broadened through the multiple dimensions of the practice turn and strategy as sub-text. The research confirmed that strategy as practice is a useful lens to understand strategy beyond the formally documented scripts and espoused pronouncements of strategy within organisational studies / Business Management / Thesis (D. B. L.)
78

Supply Chain Network Evolution: Demand-based Drivers of Interfirm Governance Evolution

Gravier, Michael J. 08 1900 (has links)
Which form of exchange governance performs better in a dynamic environment? This remains an unanswered question in the transaction cost analysis (TCA) and relational exchange literatures. Some researchers purport that transactional governance provides superior performance by providing firms the flexibility to change suppliers. Others suggest that relational governance leads to superior performance because of the willingness of both parties to adapt. Reviews of TCA have turned up ambivalent empirical findings with regard to the effects of uncertainty despite a track record of strong empirical support for other predictions. Because most of TCA and relational exchange theories' predictions enjoy strong support, this research builds upon these theories to propose a theoretical modeling framework for a dynamic environment in a supply chain network (SCN) setting. This dissertation extends TCA and relational exchange to a dynamic, network environment. It uses the approach of building a simulation in order to study in detail the relationship between key exchange factors and the selection of transactional and relational exchange governance over time. This research effort extended TCA theory with a complex adaptive model of supply chain network governance evolution that attempts to link environmental, network, production, firm and exchange factors in a continuously evolving loop. The proposed framework expands transaction cost analysis' explanatory power. Results partially support past scholarly proposal that uncertainty functions as an antecedent of asset specificity rather than as an independent construct affecting governance outcome dependent upon which form of uncertainty is being considered. The successful simulation of supply chain networks as complex adaptive systems shift the focus from deterministic, confirmatory models of exchange to an exploratory, positive model. Instead of exchange governance as an outcome, it is the catalyst of the evolutionary process.
79

Exploring connections in social-ecological systems : The links between biodiversity, ecosystem services, and human well-being in South Africa

Hamann, Maike January 2016 (has links)
A key challenge of the Anthropocene is to advance human development without undermining critical ecosystem services. Central to this challenge is a better understanding of the interactions and feedbacks between biodiversity, ecosystem services and human well-being, which interact in dynamic and complex social-ecological systems. These relationships have been the focus of much work in the past decades, however more remains to be done to comprehensively identify and quantify them, especially at larger scales. In this thesis, a social-ecological systems approach is adopted to investigate connections between biodiversity, ecosystem services and human well-being in South Africa. The country’s high levels of biological and socio-economic diversity, as well as its emerging economy make South Africa an interesting case for exploring these connections. Using data from a variety of public sources, and at different sub-national scales, the thesis first identifies and analyses a variety of bundles of ecosystem service use. Based on these bundles, three social-ecological system archetypes were identified and mapped in South Africa, namely the green-loop (high overall use of local ecosystem services), transition, and red-loop (low overall use of local ecosystem services) systems. Further analysis explored the social and ecological drivers of these patterns, and found the distribution of systems mainly influenced by social factors including household income, gender of the household head, and land tenure. Second, this thesis uses human well-being indicators to construct, analyse and map multi-dimensional human well-being bundles. These bundles were found to spatially cluster across the landscape, and were analysed for congruence with the ecosystem service use bundles. Discrepancies in the expected overlap of ecosystem service use and human well-being were highlighted and concur with findings elsewhere and the ongoing debate in the literature on the impacts of time-lags, indicator choice and scale of these interactions. Third, biodiversity in South Africa was analysed by employing an indicator of biodiversity intactness (BII) at the population level. The BII was found to have declined by 18.3% since pre-industrial times. Biodiversity loss was linked to the potential supply of ecosystem services, as well as human well-being patterns. A potential threshold at 40% biodiversity loss was detected, beyond which population abundances decline sharply. Finally, the thesis examines multiple perspectives on ecosystem services in sustainability research, including the social-ecological systems perspective, and discusses the complementarity of the different perspectives in furthering a deeper understanding of the connections between people and ecosystems. The social-ecological systems perspective employed throughout the empirical work presented in this thesis contributed towards cross-cutting insights, the testing of new kinds of data and the development of new approaches, all of which represent important steps towards unravelling the connections between biodiversity, ecosystem services and human well-being, and contributing to the key Anthropocene challenge of sustainable development. / <p>At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 2: Submitted. Paper 3: Manuscript. Paper 4: Manuscript.</p>
80

O agir linguageiro na perspectiva dos sistemas adaptativos complexos em ambiente virtual de aprendizagem em EAD

Corrêa, Ygor 24 February 2014 (has links)
Submitted by William Justo Figueiro (williamjf) on 2015-06-13T14:34:59Z No. of bitstreams: 1 15.pdf: 1458705 bytes, checksum: 59b7f3a79abc9a4c4dcf917b8bab961f (MD5) / Made available in DSpace on 2015-06-13T14:34:59Z (GMT). No. of bitstreams: 1 15.pdf: 1458705 bytes, checksum: 59b7f3a79abc9a4c4dcf917b8bab961f (MD5) Previous issue date: 2014-02-24 / UNISINOS - Universidade do Vale do Rio dos Sinos / O presente estudo concebe o papel central da língua no desenvolvimento humano por meio de um agir linguageiro. Nessa perspectiva, compreende-se que a linguagem se situa em práticas interacionais e está em permanente transformação. Este estudo tem caráter empírico de cunho qualitativo, inserido na plataforma Moodle, investigando a especificidade das interações realizadas em Chats, em uma disciplina de Ensino à Distância (EAD) na perspectiva da Teoria da Complexidade (GLEICK, 1994; JOHNSON 2003; LARSENFREEMAN 1997, 2008, 2009; MORIN 2008) e do Interacionismo Sociodiscursivo - ISD (BRONCKART, 1999, 2008). A compreensão epistemológica deste estudo abarca o agir humano em desenvolvimento caracterizado como um sistema adaptativo complexo. Sendo que, a partir das práticas de nível mais baixo, mas não menos complexas, os comportamentos acabam por emergir. Assim, os interagentes desenvolvem comportamentos observáveis que emergem das condições iniciais, encaminhando-se às manifestações de auto-organização. O agir humano situado na plataforma, assim como as práticas situadas por meio de tipos específicos de discursos (BRONCKART, 1999) estão entendidos como geradores de movimentos de complexidade. As relações discursivas tecnologicamente situadas foram observadas quanto à forma como os interagentes se adaptavam ao contexto discursivo. A partir das interações analisadas, elencaram-se, então, tipos de discurso e foram propostos quatro tipos de Movimentos de Complexidade que emergiram das interações discursivas: Movimento 1 – Dinamicidade discursiva entre interagentes; Movimento 2 – Não-linearidade interacional; Movimento 3 – Adaptação de agentividade (espaço-tempo) e Movimento 4 – Comportamento emergente. A análise do agir linguageiro, situado por meio de tipos de discurso identificados, apresentou baixo índice de variação da escrita em linguagem formal; como era de se esperar, dado o caráter formal da troca entre pares. O estudo permitiu evidenciar que os tipos de discurso se adaptam na medida em que os interagentes passam por mudanças interacionais de fases co-construídas em processo, alternando entre os tipos de discurso relato interativo e relato misto interativo-teórico pela ausência do discurso teórico. / This study conceives the central role of language in the human development through language acting. In this perspective, it is comprehended that language is situated in interactional practices and it is permanently transformed. This study has an empirical character and a qualitative approach, inserted in the Moodle platform, investigating the specificity of the interactions made in Chats in a Distance Learning Environment according to the Complexity Theory perspective (GLEICK, 1989; JOHNSON 2003; LARSEN-FREEMAN 1997, 2008, 2009; MORIN 2008) and the Sociodiscursive Interactionism perspective (BRONCKART, 1999, 2008). The epistemological comprehension of this study considers that the language acting under development is characterized as a complex adaptive system, in which behaviors eventually emerge from practices of lower level, but not less complex. Then, the interactants develop observing behaviors that emerge from the initial conditions, heading towards self-organization manifestations. The situated language acting on the platform, as well as the situated practices through specific types of discourse (BRONCKART, 2008), are understood as generators of complexity movements. The ways interactants adapted themselves to the discursive context were observed as discursive relations technologically situated. From the analyzed interactions, types of discourse were established and four types of complexity movements, which emerged from the discursive interactions, were proposed: Movement 1 – Discursive Dynamics among interactants; Movement 2 – Non-Interactional linearity; Movement 3 – Agentivity Adaptation (space-time); Movement 4 – Emergent Behavior. The analysis of the situated language acting, through identified types of discourse, presented a low rate of variation in formal language use, as it was expected, due to the formal character of the exchange among pairs. The study allowed us to evidence that the types of discourse are adaptable as the interactants go through phases of interactional change coconstructed in process, alternating between interactive-reporting and mixed theoreticalinteractive types of discourse, by the absence of theoretical discourse.

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