The issue of sustainability has greatest significance in the midst of unilateral bio-socioeconomic degradation resulting from intense and increasing societal pressures placed on the unified global ecology. In such an environment, sustainable development seeks to manage natural resources within a free market economy, aiming to meet the needs of today's population, and to protect and enhance current resource quality and abundance. In this light, techniques of integrated sustainable primary production and wastewater management are the subject matters of this applied research. There are many researchable issues which could be addressed within the subject matter. The first focus in the research scope was driven by the most severe sustainability issue facing Central Queensland (Australia) in 2000: the depletion and degradation of freshwater supplies. Central Queensland (CQ) is an arid sub-tropical region that has suffered from a marked reduction in rainfall and increase in temperature over the last 100 years, {Miles, 2004 #172}, and by the year 2000, conditions had been exacerbated by eight years of severe drought and warmer than average temperatures and resulted in widespread animal and crop failures due to freshwater shortages. Such a problem required a multi-faceted ecological, social, and economic approach. Hence, research centred on investigating the science of integrating regional water-related industries and agribusiness, and biodiverse ecosystems to achieve water and wastewater reuse applications, and associated eco-socioeconomic benefits. Specifically, this research investigates the integration of (a) electrical power station wastewater (b) barramundi culture, (c) red claw culture, (d) constructed wetlands (for water quality management and habitat creation), and (e) hydroponic flower culture. This research produced outcomes of integrated water and wastewater reuse and recycling, marketable agriproducts production (fish, crayfish, and flowers), water and wastewater reuse and conservation, wetland primary production, carbon dioxide sequestration, aquatic pollution control, and biodiversity creation and support. Successful design and management, experimental trialing and evaluation of system components and subjects, and the development of a knowledge base including static and dynamic system models, represent advances in respective research areas, and underpin the emerging discipline of integrated systems approaches to eco-socioeconomic development. Additionally, several gaps in the current body of knowledge regarding integrated systems were filled, and interactive management tools were developed. Apart from this study, the integration of technologies (as described above) has not, to this author's knowledge, been accomplished.

Background Research has shown that people need to be pre-informed about the ambiguity in order to perceive both interpretations (reverse) of an ambiguous figure. Children younger than 4 years mostly do not experience reversal even when informed. This suggests that the processes involved in reversal develop at this age. Aim The aim of the studies reported here was to disentangle the cognitive processes (metarepresentation, executive function, mental imagery) and the role of eye-movements involved in reversal. Method Four studies (7 experiments), each involving around sixty 3-, 4- and 5-year-old children, using multiple tasks, were conducted. The primary tasks used were the Ambiguous Figures Production and Reversal tasks. The secondary tasks used were metacognitive, executive function and mental imagery tasks. New tasks were also implemented in order to assess reversal abilities. Results Between the ages of 3 and 4 children develop the basic conceptual understanding for reversal (Study 1), that an ambiguous figure can have two interpretations. This is associated with the understanding of false belief, synonymy and homonymy. Between the ages of 4 and 5 children develop inhibitory (Study 3) and image generation abilities (Study 4). These are key cognitive processes necessary for reversal. Contrary to previous research, when task demands were changed (Reversal Task Revised) children’s reversal is at ceiling by the age of 5 (Studies 3 and 4). Eye-tracking data suggests that appropriate eye-movements, focusing on particular parts of the ambiguous figure, are not a primary causal factor in the development of reversal abilities (Study 4). Conclusion The ability to reverse develops in two stages. During stage 1 (between 3 and 4 years) children develop the necessary conceptual understanding that an ambiguous figure can have two interpretations (top-down knowledge). During stage 2 (between 4 and 5 years) children develop the necessary cognitive processes for reversal to occur (inhibition and image generation).

Japan, destroyed by an ill-fought war and risen to world power and yet again recently broken by natural and man-made phenomena, a nation intensely recognized the world over yet misunderstood, victim of its own exceptionalism, today needs to ask an old question. Will Japan participate in the international community as a full active member? Japan's involvement with the world was narrowly defined and confined to that of a trader and its image sustained by a self-proclaimed unique culture and all these today are put to the test. The trader's fundamental reliance on strictly cultural values to achieve success may today be insufficient to sustain their survival in a globalized world. Thus, the Japanese as well as foreigners question the validity of hitherto successful cultural tools such as loyalty in the context of globalized commerce

The profession of psychology in South Africa has not always been regulated by a statutory body such as the Health Professions Council of South Africa (HPCSA). Currently, the profession of psychology is regulated by the HPCSA and psychologists and the HPCSA find themselves in a lawful and interminable relationship. The HPCSA’s motto is to protect the public and to guide the profession, but it was questioned whether psychologists actually experience guidance from the HPCSA. In response to this problem, this study aimed to explore the subjective experiences of a group of South African psychologists regarding the HPCSA as well as the ethical code which serves as a guideline for the conduct of psychologists. This study made use of a sequential mixed method design, which comprised of a qualitative phase followed by a quantitative phase. All participants in this study were qualified psychologists. Seven participants took part in the qualitative phase and 74 participants took part in the quantitative phase. The data from the qualitative phase was grouped into broad categories and served as the basis for compiling a questionnaire for the quantitative phase. After collecting the completed questionnaires, the data was read into SPSS (Statistical Package for the Social Sciences), which was used for the statistical analysis of the data. The data was analysed by means of frequency distributions and mean scores. During the analysis of the data, six themes where identified: five regarding the HPCSA as the regulator of psychology and one regarding the ethical code that guides the conduct of psychologists. The themes include “guidance and mentorship”, “the HPCSA as a watchdog”, “the HPCSA’s motive”, “reverence that psychologists have for the HPCSA”, “the competence of the HPCSA” and “psychologists’ view on the ethical code”. The results indicated that an ambiguous relationship exists between this group of psychologists and the HPCSA, as these two entities seem to function separately. Generally, psychologists who took part in this research have a negative view towards the HPCSA, although they realise the necessity for the HPCSA as a regulating body for psychology. The recognition of this need is a platform for a workable relationship between psychologists and the HPCSA. The participants provided less detail and responded more neutral regarding their views on the ethical code, and it is concerning that quite a number of psychologists indicated that they did not know the code. This study concludes with recommendations for the HPCSA to be more approachable and to provide psychologists with more support. / Thesis (M.A. (Research Psychology))--North-West University, Potchefstroom Campus, 2011.

The profession of psychology in South Africa has not always been regulated by a statutory body such as the Health Professions Council of South Africa (HPCSA). Currently, the profession of psychology is regulated by the HPCSA and psychologists and the HPCSA find themselves in a lawful and interminable relationship. The HPCSA’s motto is to protect the public and to guide the profession, but it was questioned whether psychologists actually experience guidance from the HPCSA. In response to this problem, this study aimed to explore the subjective experiences of a group of South African psychologists regarding the HPCSA as well as the ethical code which serves as a guideline for the conduct of psychologists. This study made use of a sequential mixed method design, which comprised of a qualitative phase followed by a quantitative phase. All participants in this study were qualified psychologists. Seven participants took part in the qualitative phase and 74 participants took part in the quantitative phase. The data from the qualitative phase was grouped into broad categories and served as the basis for compiling a questionnaire for the quantitative phase. After collecting the completed questionnaires, the data was read into SPSS (Statistical Package for the Social Sciences), which was used for the statistical analysis of the data. The data was analysed by means of frequency distributions and mean scores. During the analysis of the data, six themes where identified: five regarding the HPCSA as the regulator of psychology and one regarding the ethical code that guides the conduct of psychologists. The themes include “guidance and mentorship”, “the HPCSA as a watchdog”, “the HPCSA’s motive”, “reverence that psychologists have for the HPCSA”, “the competence of the HPCSA” and “psychologists’ view on the ethical code”. The results indicated that an ambiguous relationship exists between this group of psychologists and the HPCSA, as these two entities seem to function separately. Generally, psychologists who took part in this research have a negative view towards the HPCSA, although they realise the necessity for the HPCSA as a regulating body for psychology. The recognition of this need is a platform for a workable relationship between psychologists and the HPCSA. The participants provided less detail and responded more neutral regarding their views on the ethical code, and it is concerning that quite a number of psychologists indicated that they did not know the code. This study concludes with recommendations for the HPCSA to be more approachable and to provide psychologists with more support. / Thesis (M.A. (Research Psychology))--North-West University, Potchefstroom Campus, 2011.

The present study aims to predict which individual factors may influence strategy-choices in wayfinding situations, specifically when participants are faced with ambiguous instructions in unfamiliar environments. Individual differences were measured with self-report forms of the Big Five personality traits and the Santa Barbara sense of direction scale (SBSOD). The study was conducted in a web-based survey format with a n=104 (65 female, and 39 male). A regression analysis concluded that the trait conscientiousness was the only factor that had predictive value in determining choice of strategy. SBSOD had some predictive values towards strategy-choice, but needs further investigation before any general conclusion can be drawn. Future studies should focus on a more goal-oriented task with more realistic stimulus. / Föreliggande studie har undersökt vilka individuella faktorer som kan påverka val av strategi i olika navigations-scenarion, specifikt när deltagare möts av oklara instruktioner i obekanta miljöer. Individuella skillnader mättes med själv-utvärdering av Big Five personlighetsdrag och Santa Barbara sense of direction scale (SBSOD). Studien utfördes i ett web-baserat enkätformat med ett deltagarantal på totalt 104 (65 kvinnor och 39 män). En regressionsanalys fastslog att personlighetsdraget samvetsgrannhet var den enda faktorn som kunde predicera strategival. SBSOD hade viss produktionskraft mot strategival, med detta behöver utforskas mer innan några generella slutsatser kan dras. Framtida studier bör fokusera på en mer målinriktad uppgift med mer naturtrogna stimuli.

Made available in DSpace on 2016-06-02T19:46:19Z (GMT). No. of bitstreams: 1 4483.pdf: 1728845 bytes, checksum: c2ced13293493a2f3eda64f53fe69af1 (MD5) Previous issue date: 2011-08-05 / The ambiguous loss is the uncertainty or lack of information about the whereabouts or condition of a loved one. The ambiguity freezes the mourning process and it prevents cognitions, blocking strategy of coping and making-decision process. According to this theory, it can be observed either at the loss in which there is lack of information about a loved one or in the conflicting perception of the family in which members are considered present or absent in the inner circle. Few studies evaluate ambiguous loss in families with autists. The present research aimed: 1.To identify and describe the possible expressions of current feelings of the ambiguous loss in caregivers of children with autism; 2. To verify which coping strategies are more common in these caregivers; 3. To relate possible expressions of ambiguous identity to the measurements of stress and depression in these caregivers, as well as to the degree of severity of the autism. Four caregivers of children with autism aged from six to eight years participated in this study. The caregivers were interviewed on several topics related to the ambiguous loss and they answered instruments about stress, depression, strategy of coping and autism severity of their children. The interview content and the scores of the instruments of the four participants were analyzed. Afterwards, the reports of ambiguous identity with the stress punctuations, depression and autism level were associated. Three children had mild to moderate level and one severe level. All these caregivers presented stress and depression levels, with the prevalence of the coping strategies of social Support, Resolution of problems and Positive Revaluation. After the analysis of the semi-structured interview of ambiguity, it was observed the existence of feelings related to the ambiguous loss in all of these caregivers, with reports on the six categories. Lack of clarity about their child´s diagnosis was prevalent. The results showed the relationship between the increase of the frequency of ambiguous identity with the stress results and the severity of the autism. Based on the identification of experiences of ambiguous loss in these families with autist children, this present research can provide to the professionals further better assistance and a comprehensive and complete supporting to such families. / A perda ambígua é a incerteza ou falta de informação sobre o paradeiro ou condição de um ente querido. A ambigüidade congela o processo de luto e impede cognições, bloqueando processos de enfrentamento e tomada de decisões. Segundo esta teoria, ela pode ser observada tanto na perda em que há falta de informações sobre um ente querido, como na percepção conflituosa da família sobre que membros são considerados como presentes ou ausentes no círculo íntimo. Poucos estudos avaliam perda ambígua em famílias com autistas. Os objetivos deste estudo foram: 1. Identificar e descrever as possíveis expressões de sentimentos decorrentes da perda ambígua em cuidadoras de crianças com autismo; 2. Verificar quais estratégias de coping são mais comuns nestas cuidadoras; 3. Confrontar as possíveis expressões de identidade ambígua às medidas de estresse e depressão nas cuidadoras, bem como ao grau de severidade do autismo. Participaram do estudo quatro cuidadoras de crianças com autismo com a faixa etária entre seis e oito anos de idade. As cuidadoras foram entrevistadas sobre vários tópicos relacionados à perda ambígua e responderam a instrumentos sobre estresse, depressão, enfrentamento e severidade do autismo da criança. Foi realizada a análise de conteúdo de entrevistas e as pontuações dos instrumentos das quatro participantes. A seguir, foram confrontados os relatos de Identidade ambígua com as pontuações de estresse, depressão e nível de autismo. Foram observadas três crianças que se encontravam no nível de leve a moderadamente autista e uma no nível severo. Todas as cuidadoras apresentaram níveis de estresse e depressão, com o predomínio das estratégias de coping de Suporte social, Resolução de problemas e Reavaliação Positiva. Após a análise da entrevista semi estruturada de ambigüidade, verificou-se a existência de sentimentos relacionados à perda ambígua em todas as cuidadoras, com relatos nas seis categorias e predomínio da categoria Falta de clareza sobre o diagnóstico da criança. Os resultados demonstraram a existência da relação entre o aumento da freqüência de Identidade ambígua com os resultados de estresse e a severidade do autismo. Espera-se que a presente pesquisa, ao identificar a vivência de perda ambígua em famílias de criança autista, possa auxiliar os profissionais a oferecerem uma assistência e apoio mais completo e abrangente a tais famílias.

Made available in DSpace on 2017-07-10T18:55:32Z (GMT). No. of bitstreams: 1 Tania.pdf: 6315449 bytes, checksum: 8cc5718ad6a417f2209d5f03f5a450ec (MD5) Previous issue date: 2013-03-01 / This essay has the aim to fulfill a descriptive study regarding the lexical ambiguity of the Brazilian Sign Language Libras through the investigation of the specialty literature, culminating with the construction of a data with ambiguous lexical items containing, respectively in two dictionaries considered bilingual: The dictionary of the Brazilian Sign Language/Libras version 2.0, 2008 (digital) and the The New Deit-Libras Trilingual Illustrated Encyclopedic Dictionary (2012). To the general studies about this subject, it was regarded the basis of the structuralist semantics founded in researches of investigators, some of them were: Ullmann (1964), Saussure (1987), Câmara Jr (1970) and Silva (2006). Based also in Emmorey (2002), Johnston & Schembri (2007), Ferreira Brito (1995) and Quadros & Karnopp (2004), the criteria that would found the setting of data was established so that the records and analysis were made. This study was conducted by a collection of questions that include our concern to know how the lexical ambiguity that is shown in Libras; how the users of this language deal with this kind of situation, which effects this phenomenon causes in the comprehension of the deaf and yet what competences and abilities the deaf develop or need to develop to clarify mostly the sings that are lexically ambiguous. In the bias of the specialized literature regarding the studies of the meanings and the significations of the words, it´s assumed that the lexical ambiguity is caused when a sign/word has two or more meanings/significations, when comparing the contexts. Through the general distinction between polysemy and homonymy, it was concluded that in Libras, differently from the Portuguese Language, the lexical ambiguity can be shown in three different forms: (i) through the homonymy; (ii) through the polysemy; and through the world knowledge and determining evocative (religious, cultural, social and others). This way, homonymy is considered the situation in which the meanings of the same word don´t show any semantic relation and polysemy when the meanings/significations admitted by a word/sing meet the points of a semantic contact. The representative meaning of FRIDAY and FISH, for instance, although semantically not related, are part of a meaningful group of others signs that the same effect occurs. We call them evocative traces (traces determined by relations either religious or cultural or others), we couldn t classify them as cases of homonymy, neither polysemy. Thus, we created a third kind of ambiguity. When the phenomenon of the lexical ambiguity is analyzed, in general, some authors will say that, in fact, the marks of the available resources of the language (the marks, such as, the references of the enunciatively space, the alteration of the movement of the hands or the other expressions), they would be enough to differ them. Anyway, many cases and analyzed this study, it could be observed that, even being useful, they are not able to solve or clarify all the ambiguous items. / Esta dissertação objetiva realizar um estudo descritivo acerca da ambiguidade lexical na Língua Brasileira de Sinais Libras por meio de investigações na literatura especializada, culminando com a construção de um corpus com itens lexicais ambíguos lematizados, respectivamente em dois dicionários bilíngues: O dicionário da Língua Brasileira de Sinais/LIBRAS versão 2.0, 2008 (digital) e o Dicionário Enciclopédico Ilustrado Trilíngue Novo Deit-Libras (2012). Para os estudos gerais sobre o assunto, tomamos como base a semântica lexical estruturalista baseada em trabalhos de pesquisadores, dentre outros, Ullmann (1964), Saussure (1987), Câmara Jr (2002) e Silva (2006). Apoiando-nos também em Emmorey (2002), Johnston & Schembri (2007), Ferreira Brito (1995) e Quadros e Karnopp (2004), traçamos critérios que subsidiaram os levantamentos dos dados para os registros e análises. Este estudo foi conduzido por um conjunto de questões das quais incluem nossa preocupação em saber como a ambiguidade lexical se manifesta na Libras; como os utentes dessa língua lidam com esse tipo de situação; quais efeitos esse tipo de fenômeno acarreta na compreensão do surdo e ainda que competências e habilidades os surdos desenvolvem ou precisam desenvolver para clarificar ao máximo os signos ambíguos. À luz da literatura especializada com estudos sobre significados e sentidos de palavras, assumimos que a ambiguidade lexical é ocasionada quando um signo/palavra sustenta dois ou mais significados/sentidos, quando expostos ao contexto. A partir do critério geral de distinção entre polissemia e homonímia, observamos que em Libras, diferentemente da Língua Portuguesa, a ambiguidade lexical pode se manifestar de três formas distintas: (i) pela homonímia; (ii) pela polissemia; e (iii) pelo conhecimento de mundo e determinantes evocativos (religiosos, culturais e outros). Consideramos homonímia a situação em que os significados de uma mesma palavra não mantêm entre si qualquer tipo de relacionamento semântico e polissemia quando os significados/sentidos admitidos pela palavra/signo encontram pontos de contato semânticos. O signo representivo para SEXTA-FEIRA e PEIXE, a título de exemplo, embora semanticamente não relacionados entre si, faz parte de um conjunto significativo de outros signos em que o mesmo acontece. Por estarem relacionados de algum modo, chamamos de traços evocativos, não podendo classificá-los como casos de homonímia e tampouco, polissemia. Desse modo, criamos um terceiro tipo de ambiguidade. Quando se estuda ambiguidade lexical, em geral, alguns autores preconizam que, de fato, ela não existiria, tendo em vista os recursos disponíveis na língua, os marcadores, tais como: referentes no espaço enunciativo, expressões não manuais e outros, seriam suficientes para desambiguá-los. Todavia, para muitos casos apresentados e analisados ao longo do trabalho, observamos que, embora útil, eles não são capazes de resolver ou clarificar todos os itens ambíguos.

Made available in DSpace on 2017-07-10T18:55:40Z (GMT). No. of bitstreams: 1 Tania Martins.pdf: 6315452 bytes, checksum: 7dc3d00f0fb5538dabf6d799c2cb9b38 (MD5) Previous issue date: 2013-03-01 / This essay has the aim to fulfill a descriptive study regarding the lexical ambiguity of the Brazilian Sign Language Libras through the investigation of the specialty literature, culminating with the construction of a data with ambiguous lexical items containing, respectively in two dictionaries considered bilingual: The dictionary of the Brazilian Sign Language/Libras version 2.0, 2008 (digital) and the The New Deit-Libras Trilingual Illustrated Encyclopedic Dictionary (2012). To the general studies about this subject, it was regarded the basis of the structuralist semantics founded in researches of investigators, some of them were: Ullmann (1964), Saussure (1987), Câmara Jr (1970) and Silva (2006). Based also in Emmorey (2002), Johnston & Schembri (2007), Ferreira Brito (1995) and Quadros & Karnopp (2004), the criteria that would found the setting of data was established so that the records and analysis were made. This study was conducted by a collection of questions that include our concern to know how the lexical ambiguity that is shown in Libras; how the users of this language deal with this kind of situation, which effects this phenomenon causes in the comprehension of the deaf and yet what competences and abilities the deaf develop or need to develop to clarify mostly the sings that are lexically ambiguous. In the bias of the specialized literature regarding the studies of the meanings and the significations of the words, it´s assumed that the lexical ambiguity is caused when a sign/word has two or more meanings/significations, when comparing the contexts. Through the general distinction between polysemy and homonymy, it was concluded that in Libras, differently from the Portuguese Language, the lexical ambiguity can be shown in three different forms: (i) through the homonymy; (ii) through the polysemy; and through the world knowledge and determining evocative (religious, cultural, social and others). This way, homonymy is considered the situation in which the meanings of the same word don´t show any semantic relation and polysemy when the meanings/significations admitted by a word/sing meet the points of a semantic contact. The representative meaning of FRIDAY and FISH, for instance, although semantically not related, are part of a meaningful group of others signs that the same effect occurs. We call them evocative traces (traces determined by relations either religious or cultural or others), we couldn t classify them as cases of homonymy, neither polysemy. Thus, we created a third kind of ambiguity. When the phenomenon of the lexical ambiguity is analyzed, in general, some authors will say that, in fact, the marks of the available resources of the language (the marks, such as, the references of the enunciatively space, the alteration of the movement of the hands or the other expressions), they would be enough to differ them. Anyway, many cases and analyzed this study, it could be observed that, even being useful, they are not able to solve or clarify all the ambiguous items / Esta dissertação objetiva realizar um estudo descritivo acerca da ambiguidade lexical na Língua Brasileira de Sinais Libras por meio de investigações na literatura especializada, culminando com a construção de um corpus com itens lexicais ambíguos lematizados, respectivamente em dois dicionários bilíngues: O dicionário da Língua Brasileira de Sinais/LIBRAS versão 2.0, 2008 (digital) e o Dicionário Enciclopédico Ilustrado Trilíngue Novo Deit-Libras (2012). Para os estudos gerais sobre o assunto, tomamos como base a semântica lexical estruturalista baseada em trabalhos de pesquisadores, dentre outros, Ullmann (1964), Saussure (1987), Câmara Jr (2002) e Silva (2006). Apoiando-nos também em Emmorey (2002), Johnston & Schembri (2007), Ferreira Brito (1995) e Quadros e Karnopp (2004), traçamos critérios que subsidiaram os levantamentos dos dados para os registros e análises. Este estudo foi conduzido por um conjunto de questões das quais incluem nossa preocupação em saber como a ambiguidade lexical se manifesta na Libras; como os utentes dessa língua lidam com esse tipo de situação; quais efeitos esse tipo de fenômeno acarreta na compreensão do surdo e ainda que competências e habilidades os surdos desenvolvem ou precisam desenvolver para clarificar ao máximo os signos ambíguos. À luz da literatura especializada com estudos sobre significados e sentidos de palavras, assumimos que a ambiguidade lexical é ocasionada quando um signo/palavra sustenta dois ou mais significados/sentidos, quando expostos ao contexto. A partir do critério geral de distinção entre polissemia e homonímia, observamos que em Libras, diferentemente da Língua Portuguesa, a ambiguidade lexical pode se manifestar de três formas distintas: (i) pela homonímia; (ii) pela polissemia; e (iii) pelo conhecimento de mundo e determinantes evocativos (religiosos, culturais e outros). Consideramos homonímia a situação em que os significados de uma mesma palavra não mantêm entre si qualquer tipo de relacionamento semântico e polissemia quando os significados/sentidos admitidos pela palavra/signo encontram pontos de contato semânticos. O signo representivo para SEXTA-FEIRA e PEIXE, a título de exemplo, embora semanticamente não relacionados entre si, faz parte de um conjunto significativo de outros signos em que o mesmo acontece. Por estarem relacionados de algum modo, chamamos de traços evocativos, não podendo classificá-los como casos de homonímia e tampouco, polissemia. Desse modo, criamos um terceiro tipo de ambiguidade. Quando se estuda ambiguidade lexical, em geral, alguns autores preconizam que, de fato, ela não existiria, tendo em vista os recursos disponíveis na língua, os marcadores, tais como: referentes no espaço enunciativo, expressões não manuais e outros, seriam suficientes para desambiguá-los. Todavia, para muitos casos apresentados e analisados ao longo do trabalho, observamos que, embora útil, eles não são capazes de resolver ou clarificar todos os itens ambíguos

Cette thèse porte sur l’interprétation combinatoire des probabilitésde l’état stationnaire de l’ASEP par les tableaux escaliers, sur les arbresnon-ambigus et sur les polyominos parallélogrammes périodiques.Dans une première partie, nous étudions l’ansatz matriciel de Derrida,Evans, Hakim et Pasquier. Toute solution de ce système d’équation permet decalculer les probabilités stationnaires de l’ASEP. Nos travaux définissent denouvelles récurrences équivalentes à celles de l’ansatz matriciel. En définissantun algorithme d’insertion sur les tableaux escaliers, nous montrons combinatoirementet simplement qu’ils les satisfont. Nous faisons de même pour l’ASEPà deux particules. Enfin, nous énumérons les coins dans les tableaux associésà l’ASEP, nous permettant ainsi de donner le nombre moyen de transitionspossibles depuis un état de l’ASEP.Dans une deuxième partie, nous calculons de jolies formules pour les sériesgénératrices des arbres non-ambigus, desquelles nous déduisons des formulesd’énumérations. Puis, nous interprétons bijectivement certains de ces résultats.Enfin, nous généralisons les arbres non-ambigus à toutes les dimensions finies.Dans la dernière partie, nous construisons une structure arborescente surles polyominos parallélogrammes périodiques, inspirée des travaux de Boussicault,Rinaldi et Socci. Cela nous permet de calculer facilement leur sériegénératrice selon la hauteur et la largeur ainsi que deux nouvelles statistiques :la largeur intrinsèque et la hauteur de recollement intrinsèque. Enfin, nousétudions l’ultime périodicité de leur série génératrice selon l’aire. / This thesis deals with a combinatorial interpretation of the stationnarydistribution of the ASEP given by staircase tableaux and studiestwo combinatorial objects : non-ambiguous trees and periodic parallelogrampolyominoes.In the first part, we study the matrix ansatz introduced by Derrida, Evans,Hakim and Pasquier. Any solution of this equation system can be used tocompute the stationnary probabilities of the ASEP. Our work defines newrecurrences equivalent to the matrix ansatz. By defining an insertion algorithmfor staircase tableaux, we prove combinatorially and easily that they satisfyour new recurrences. We do the same for the ASEP with two types of particles.Finally, we enumerate the corners of the tableaux related to the ASEP, whichgives the average number of transitions from a state of the ASEP.In the second part, we compute nice formulas for the generating functionsof non-ambiguous trees, from which we deduce enumeration formulas. Then, wegive a combinatorial interpretation of some of our results. Lastly, we generalisenon-ambiguous trees to every finite dimension.In the last part, we define a tree structure in periodic parallelogram polyominoes,motivated by the work of Boussicault, Rinaldi and Socci. It allowsus to compute easily the generating function with respect to the height andthe width as well as two new statistics : the intrinsic width and the intrinsicgluing height. Finally, we investigate the ultimate periodicity of the generatingfunction with respect to the area.