Saab Component Maintenance in Linköping, Sweden, offers maintenance, repair and overhaul (MRO) services for civilian and military aircraft components. Lately, the department has struggled with slow throughput rates, despite various counteracting attempts. Studies show, that large parts of the delays derive from the logistics department where goods arrive and dispatch. Therefore, Saab wants to carry out an extensive analysis of the department in order to further investigate what is causing its slow throughput rates. The thesis begins with extensive mapping over Component Maintenances whole value stream to find out how departments interact with each other and which role individual departments have in the total supply chain. Out of 13 000 different part numbers, components were divided into five product families. From statistical history of package frequency, two value streams were chosen as scientific research objects, where improvements of which show great potential to have serious positive effects. From activity studies, observations, workshops and interviews various elements were identified as obstructing in the logistics department’s material and information flow. Activity studies show, that 55, 8% of activities performed in the arriving goods department were considered as value adding time. In addition, 67, 9% of activities performed in the dispatch goods department were considered as value adding time (where over half of the value adding time was spent in administrative systems). 11 critical challenges and five associated root causes have been identified in the arriving goods department. 14 critical challenges and five associated root causes have been identified in the dispatch goods department. To reduce and prevent further waste, the thesis recommends 14 critical actions in order to reduce the amount of elements obstructing the flow of material and information at Component Maintenance. In addition, recommended changes have been illustrated in a Future State Map for each department respectively on a process level. By performing tasks in new sequences where material and information flow progresses in a parallel synchronized rate, the benefits of a balanced lean flow could be demonstrated in the dispatch department. Shortest lead time, from finished component to packaged and booked shipment, was noted for small units and took 20 minutes.

O complexo soja tem um papel importante no desenvolvimento da economia brasileira. Cultivada especialmente nas regiões Centro-Oeste e Sul do país, a soja se firmou como um dos produtos mais destacados da agricultura nacional e na balança comercial. Assim como as demais culturas agrícolas, a soja depende de boas condições climáticas para expressar o seu potencial produtivo. Desse modo, o clima é um dos principais fatores de risco para o sucesso da cultura, especialmente quando se consideram os cenários futuros de mudanças climáticas. Desta forma, pode-se lançar mão de estratégias de manejo da cultura de modo a minimizar os riscos associados ao aquecimento global, como, por exemplo, alterar as datas de semeadura da soja, buscando-se períodos que possam amenizar os impactos proporcionados pela elevação das temperaturas. Com base nisso, o objetivo deste trabalho foi simular o desenvolvimento e a produtividade da cultura da soja nas condições climáticas atuais e futuras e simular diferentes decêndios para a semeadura da cultura, buscando-se determinar as épocas preferenciais em treze regiões produtoras do sul do Brasil. Para tanto, utilizou-se o modelo de simulação de cultura CSM-CropGro-Soybean para simular o desempenho da cultura da soja nas condições climáticas atuais e futuras. Os cenários climáticos, A2 e B2 do IPCC, foram gerados com base nos acréscimos de temperaturas gerados pelos modelos climáticos ETA e PRECIS para dois períodos: D25, entre 2013 e 2043; e D55, entre 2041 e 2071, em treze diferentes localidades produtoras de soja da região Sul do Brasil. A partir dos valores de produtividades potencial e atingível de soja, foram definidos quatro níveis de risco climático, sendo eles: baixo risco; risco moderado; risco alto; e risco muito alto. Também foram simulados quatro decêndios de semedura de soja, dois antecipados e dois tardios em relação ao período atual recomendado. O modelo CSM-CropGro-Soybean foi capaz de simular os efeitos dos diferentes tipos de solo e cultivares de soja nas produtividades potencial e atingível, considerando-se as séries climáticas atuais e futuras. Foi possível observar que o aquecimento global deverá levar a reduções de produtividade da cultura da soja, com as menores perdas ocorrendo nas localidades de Castro, PR, e Santa Maria, RS, e as maiores nas localidades de Palotina, PR, e Uruguaiana, RS. Observou-se que as localidades de Campo Mourão e Cascavel, no estado do Paraná, são as de menores riscos climáticos para o cultivo da soja, enquanto que nas localidades Bagé e Pelotas, RS, ocorrem os maiores riscos climáticos. Ao atrasar ou antecipar a semeadura em relação à época atualmente recomendada, verifica-se diferenças nas produtividades, sendo essas variáveis conforme a localidade estudada. / The soybean complex has an important role in the development of the Brazilian economy. It is especially cultivated in areas like Midwest and South of the country where the crop is established as one of the most important product of national agriculture and the trade balance. Like other crops, soybean depends on good weather to express all its productive potential, thus the climatic condition becomes one of the main risk factors for this crop failure, especially when climate change is considered. Considering that, crop management strategies can be adopted to minimize the climatic risks in the changing climate by anticipating or delaying the soybean sowing dates in relation to the recommended period. Based on that, the objective of this study was to simulate the development and yield of soybean crop in the current and future climate conditions and simulate different sowing dates in order to determine the preferred ones thirteen producing regions of southern Brazil. For that, the crop simulation model CSM-CROPGRO-Soybean was used to estimate soybean yield in the current and future climate scenarios, A2 and B2, with increasing temperatures generated by the climate models ETA and PRECIS for two distinct periods: D25, between 2013 and 2043; and D55, between 2041 and 2071, in thirteen different locations in southern Brazil. Based on the potential and attainable soybean yields, four levels of climatic risk were stablished, being: low risk; moderate risk; high risk; and very high risk. In order to evaluate the management strategies for mitigate the impacts of global warming on crop yield, four new sowing dates were simulated, being two before the recommended sowing period and two after that. The CSMCROPGRO- Soybean model was able to simulate the effects of different soil types and soybean cultivars, for potential and attainable yields, taking into account current and future climate data. It was possible to observe that a reduction in the soybean yield will occur in the future climate scenarios, with the lowest impacts in locations of Castro, PR, and Santa Maria, RS, and the greatest ones in Palotina, PR, and Uruguaiana, RS. Regarding the climatic risk for soybean crop, Campo Mourão and Cascavel, in the PR, were the locations with the lowest values, whereas in Bagé and Pelotas, RS, the highest values were observed. When under global warming, the delaying or advancing of the sowing dates in relation to the present ones, recommended by the government, can result in soybean yield changes, which vary across the locations studied in southern Brazil.

O evento climático conhecido como El Niño Oscilação Sul (ENOS) é formado pelos episódios de El Niño e La Niña e é classificado como um fenômeno de grande escala que ocorre no Oceano Pacífico Equatorial. Em razão do grande efeito do fenômeno ENOS na variabilidade climática e, consequentemente, na produção agrícola, se faz necessário o conhecimento adequado das consequências dos eventos de El Niño e La Niña nos regimes térmicos e hídricos de diferentes regiões brasileiras e de seus impactos na produção de alimentos, sobretudo na cultura da cana-de-açúcar. Para tanto, dados meteorológicos foram analisados a fim de se verificar algum efeito causado pelos eventos do ENOS na temperatura do ar, na radiação solar e precipitação pluvial. Em seguida, utilizou-se o modelo DSSAT CSMCANEGRO parametrizado para as condições brasileiras para simular a produtividade da cana-planta de 12 meses em quatro localidades de diferentes regiões do Brasil (Jataí, GO; João Pessoa, PB; Londrina, PR; e Piracicaba, SP), empregando-se séries históricas de dados meteorológicos, de 1979 a 2010, para três tipos de solos com diferentes características físico-hídricas (capacidade de água disponível), e para dois tipos de simulação da produtividade da cana pelo modelo DSSAT CSM-CANEGRO, o tipo Seasonal e o tipo Sequence. Foi possível notar nos resultados que para a temperatura do ar houve uma maior frequência de anos com essa variável acima da mediana nas localidades situadas na região central e nordeste no país durante os eventos de El Niño, ao passo que na região sul, representada por Londrina, tal frequência foi indefinida. Para os anos de La Niña, não houve, em geral, tendência clara de variação em nenhuma das localidades. Já nos anos neutros as maiores frequências foram de temperaturas abaixo da mediana nas localidades das regiões central e sul, enquanto em João Pessoa, PB, não houve tendência bem definida. Para a radiação solar, em geral, não se detectaram tendências expressivas, apesar de valores levemente acima da mediana em anos de La Niña, em todas as regiões. Finalmente, para as chuvas houve tendências um pouco mais expressivas, sendo que nas localidades da região central do país (Jataí e Piracicaba) as precipitações acima da mediana foram mais frequentes nos anos de El Niño e La Niña, ficando abaixo da mediana nos anos neutros. Nas demais localidades analisadas, as chuvas tenderam a ficar abaixo ou igual à mediana durante todas as fases do ENOS. Quanto à produtividade, algumas tendências também puderam ser observadas. Em Jataí, GO, não houve alterações da produtividade média maiores do que ± 1 t ha-1. Em João Pessoa, PB, a tendência de menores produtividades durante os anos de El Niño e de La Niña e de maiores produtividades em anos neutros. Situação oposta foi observa em Piracicaba, SP, e Londrina, PR, onde as produtividades tenderam a serem maiores do que a média histórica nos eventos tanto de El Niño como de La Niña, ao passo que nos anos de neutralidade do ENOS as produtividades tenderam a ser menores do que a média. / The climatic event known as El Niño Southern Oscillation (ENSO) is formed by episodes of El Niño and La Niña and is classified as a large-scale phenomenon that occurs in the Equatorial Pacific Ocean. Given the large effect of ENSO on climate variability and hence in agricultural production, proper knowledge of the consequences of El Niño and La Niña on the thermal and water regimes of different Brazilian regions and their impact on food production is needed, especially for sugarcane crop. To this end, climate variables were analyzed in order to verify any effect caused by the ENSO events on air temperature, solar radiation and rainfall. The DSSAT CSM-CANEGRO model, parameterized for the Brazilian conditions, was used to simulate sugarcane yield (plant cane of 12 months) in four sites of different Brazilian regions (Jataí, GO; João Pessoa, PB; Londrina, PR; and Piracicaba, SP), using historical series of meteorological data from 1979 to 2010, for three types of soils, with different physical-hydric properties (Soil water holding capacity), and two types of simulations in DSSAT CSM-CANEGRO model, with the Seasonal and Sequence procedures It was possible to notice in the results that the air temperature was a greater frequency of years with this variable above the median in localities situated in the central and northeastern region of the country during the El Niño events, while in the south, represented by Londrina, this frequency was undefined. For La Niña years, there was generally clear trend of variation in any of the locations. Already in neutral years, the highest frequency was below the median temperatures in the localities in central and southern regions, while in João Pessoa, PB, and no well-defined trend. Solar radiation, in general, no significant trends were detected, although values slightly above the median in La Niña years in all regions. Finally, to the rains there was a little more expressive tendency, and the locations of the central region (Jataí and Piracicaba) precipitation above the median were more frequent in years of El Niño and La Niña, below the median in neutral years. In other areas analyzed, rainfall tended to be below or equal to the median during all phases of ENSO. With regard to productivity, some trends were also observed. In Jataí, GO, no changes greater than ± 1 t ha-1 was observed. João Pessoa, PB, there was a trend of lower yields during El Niño and La Niña years and higher yields during neutral years. Opposite situation was observed in Piracicaba, SP, and Londrina, PR, where the yields tended to be higher than the historical average in both El Niño and La Niña events, while during neutral years the yield tended to be smaller than average.

Les patients atteints de cancers reçoivent différents traitement, tels que la radiothérapie ou la chimiothérapie. Actuellement, environ 60% des enfants survivants du cancer développent des effets secondaires cognitifs, consécutifs aux traitements énoncés précédemment. Compte tenu de la perspective du développement psychomoteur de l’enfant et de l’immaturité du système nerveux central (SNC) chez ces patients, il s’avère particulièrement pertinent d’étudier les effets secondaires que provoquent les traitements anticancéreux sur le développement cognitif de cette population de malades. Des études ont démontrées l’existence de liens étroits entre ces effets secondaires et l’abolition de la neurogénèse provoquée principalement par l’irradiation. Ce projet de maîtrise porte sur les effets du facteur de croissance épidermique, l’EGF (un facteur de croissance impliqué dans la prolifération cellulaire) sur la neurogénèse de la souris. Nous avons également cherché un vecteur de sécrétion efficace pour permettre une diffusion continue d’EGF à long terme (2 à 4 semaines). Notre hypothèse est que l’EGF serait capable de stimuler la neurogénèse et protéger les cellules de l’apoptose dans le cerveau de la souris, suite à une irradiation. Nous avons montré un effet positif de l’EGF sur la formation et la prolifération des neuroblastes Dcx(+) dans la zone sous ventriculaire (ZSV) et non dans l’hippocampe (Hi), suite à l’injection de l’EGF, directement dans le cerveau à l’aide d’une pompe osmotique. Nous avons observé que cette augmentation de la quantité de jeunes neurones est indépendante de la capacité de l’EGF à les protéger de l’apoptose. L’EGF ne protège pas non plus les blastes leucémiques, issus de lignées de cellules humaines, des effets secondaires d’une irradiation. Les cellules souches mésenchymateuses (CSM) modifiées génétiquement et générées pour sécréter l’EGF ne montrent aucun effet sur la stimulation de la neurogénèse quand elles sont directement injectées dans le cerveau. Finalement, nos résultats indiquent que l’EGF pourrait être un bon candidat pour le développement de nouvelles thérapies pour traiter les effets secondaires que provoque une irradiation du cerveau. L’utilisation de pompes pour permettre l’administration d’EGF dans le cerveau devient alors très intéressante pour améliorer la qualité de vie des patients. / Patients with cancer receive different treatments such as radiotherapy (ionizing radiation) or chemotherapy. Currently about 60% of children surviving cancer are prone to the development of treatment-related delayed side effects, such as neurocognitive impairments. Given the prospect of psychomotor development of children and central nervous system (CNS) immaturity in these patients, it is especially relevant to study the adverse effects related to cognitive impairment caused by cancer treatments on this population of patients. Studies have shown the existence of close links between this delayed side effects and the abolition of neurogenesis caused mainly by irradiation. This masters degree project concerns the effects of epidermal growth factor, EGF (a growth factor involved in cell proliferation), on neurogenesis in the C57BL/6 mice, which drastically decrease after exposure to ionizing radiation. We also sought a vector of efficient secretion to allow continuous long-term secretion of EGF (2-4 weeks). Our hypothesis is that EGF will stimulate neurogenesis and protect cells from apoptosis in the brain of mice following radiation. We have shown a positive effect of EGF on the formation and proliferation of young neurons Dcx (+) in the subventricular zone (SVZ) but not in the hippocampus (Hi) following EGF injection directly in the brain using an osmotic pump. We also observed that the increase of young neurons is independent of the ability of EGF to protect them from apoptosis. Moreover, EGF doesn’t protect leukemic human blasts after irradiation. Mesenchymal stem cells (MSC) genetically engineered to secrete EGF did not stimulate neurogenesis when injected directly in the brain. Finally our results indicate that EGF could be a good candidate for the development of new therapies to treat the side effects that irradiation causes in the brain. The use of pumps to allow the administration of recombinant EGF in specific brain regions becomes very interesting. Indeed this delivery system is increasingly used and effective to help improve the quality of life of patients.

The concept of sustainability has become apparent in the fast fashion business. In recent years many companies have started to label the more sustainable garments in order to make it easier for the consumer to make conscious decisions while shopping. However, this raises many questions due to unclear use of sustainability terms and the contradiction between environmental and ethical aspects in regards to the fashion industry. The purpose of the thesis is to raise a discussion concerning the use of sustainability labels within fast fashion. In order to reach the purpose, the following questions were developed: “What do different sustainability labels mean according to the fast fashion business?”, “What knowledge do the customers have about different sustainability labels?” and “Do the labels have an impact in the buying decision making process?”We have done an explorative study to investigate a phenomenon and highlight a potential problem in this field of studies. Since the aim of the empirical research is to gain insight of the consumers' attitudes and knowledge, the study is to a large extent qualitative. We conducted a survey in which purposive sampling was used as we wanted the respondents to fulfil certain criteria. In addition to the survey, we also conducted research on a number of fast fashion companies to get an idea of what information the customers would be naturally exposed to. The results from the study show that sustainability labels within fast fashion have not experienced their intended success among their largest consumer group. It has not yet reached desired effects on the consumption behaviour, the interest for sustainability nor the knowledge among the young female respondents. One can therefore discuss the utility of using labels within fast fashion. / Program: Master in Fashion Management with specialisation in Fashion Marketing and Retailing

Hardware and software developers rely on different tools for document management, product data management (PDM) and software configuration management (SCM). As more and more products include components of both types there is a growing demand for one collaborative system. This becomes even more critical in the medical sector, where a device is under regulatory demands for document management to even be allowed in to the market. Combined systems become more complex and are generally based on PDM-principles rather than SCM. Current development of SCM tends instead towards simpler systems focused on pure version control (VCS) that are easy to use and economically available to small- and medium sized enterprises (SME), which is not the case with generic PDM-systems or combined systems. This study explored the possibility to extend the usage of such a VCS and include hardware documentation as well as software. The aim was to further our understanding of the SME perspective on product documentation for the medical device field. The method was a case study, collaboration with a SME development company. The scope was to explore possible usage of a chosen VCS (GitLab) and to compare it with a generic PDM-system and with existing manual system. The results showed that for several of the hardware document types there are special made Git-solutions to find within the open source community. However, none of the ones tested in the study was deemed good enough with respect to functionality and reliability. Instead the case study used direct storage of the files in their binary format and focused on testing different VCS functions and on how to organize in order to best gain the advantages of using the system. The conclusions showed that hardware documents can be stored in the same iterative manner as software but with limited Git functionality. Compared with a PDM system GitLab can offer the same level of revision control and communication around the specifications but lacks classification of parts and detailed product structures. GitLab offers better iteration history than both a PDMsystem and the existing manual system does. But not being able to use full Git functionality the organization needs a collaboration strategy to handle the decentralized storage. If the collaboration strategy matches the organization development practices, GitLab is a useful alternative for medical device documentation.

In this thesis I have tried to identify if there exists a correlation between IT Governance Maturity (ITGM) and the success of an Information system implementation. The method chosen for this research was a Case study, performed at an IT-company, Medius AB in Linköping, Sweden. Six customers of Medius where selected, based on their successfulness project implementation, that the same project manager at Medius was involved and that their existed a comparable customer in the same industry for each customer selected. Out of the six customers selected for this thesis, two of them where from the retail industry, two from the manufacturing industry and two from the service industry. Their maturity level (according to SAMM) was determined using the framework suggested by Khaita & Zaulkernan (2009), by estimating each attribute from the interviews performed with the respondents. Each customers ITGM level was then compared to the degree of success of the implementation project of the Medius system. A correlation was found, between high ITGM and successful outcomes of the implementation project. The two attributes that seem to affect the outcome the most was: communication and knowledge sharing. These two attributes was also the ones least implementeted at the customers which unsuccesfully implemented the system. / I den här rapporten har jag tittat på hur ett IT-företags kunders IT-mognad påverkar utfallet av införandet av ett IT-system. Som underlag användes en fallstudie av företaget Medius AB och deras Linköpingskontor, där sex av deras kunder intervjuades och bedömdes i enlighet med SAMM. Fallföretaget i sig analyserades, med data från interna intervjuer och med stöd av en observation bedömdes deras IT-mognadsgrad enligt CSM. Målet var att undersöka huruvida IT-mognadsgraden hos en kund påverkar utfallet av ett införandeprojekt av ett IT-system. IT-systemet i fråga var ett elektroniskt arbetsflödessystem för faktura hantering, och för att eliminera risk användes bara projekt där samma projektledare varit ansvarig hos Medius AB. Två stycken kundföretag per bransch valdes ut, för branscherna utgjordes av: tillverkande, tjänste och detaljhandel. En bransch stack ut i studien, där detaljhandelns två företag i rapporten var de som visade sig ha högst mognadsvärde enligt SAMM. Vidare kunde jag konstatera att det finns en tydlig koppling mellan de med hög mognadsgrad och lyckade projektutfall. De två faktorer som verkade påverka utfallet främst, var effektiv intern kommunikation och förmågan att överföra kunskap. De två projekt som helt hade misslyckats införa bra rutiner för dessa, var också de som lyckats dåligt med att införa produkten under det givna projektet.

The capacity spectrum method is a very popular tool in the performance based earthquake resistant design of structures. Though it involves nonlinear static analysis, it can be used to predict the dynamic behaviour of the building under earthquake load. Since the analysis is only static and not dynamic, it is very well suited for the design offices and low end computer terminals as opposed to dynamic analysis which is very resource consuming. There are several methods/variations of methods, to perform the nonlinear static analysis, popularly known as pushover analysis and convert it to capacity spectrum. Displacement based pushover analysis, force based pushover analysis, modal pushover analysis, energy based pushover analysis etc. are some of the variations of pushover analysis. There are a few attempts to consider the change in mode shape but all the methods are silent about the change in frequency due to formation of hinges in the structure. The available codes for building design such as ATC-40 provide some guidelines for getting the capacity spectrum but are not yet developed for proper ductility consideration while converting the pushover curve to capacity spectrum. The present study tries to address the above issues while proposing a new energy based approach to draw capacity spectrum. The chapter 1 introduces the concept of pushover analysis and capacity spectrum concepts. Different approaches to get these curves, their theoretical background, variations and limitations are discussed as a quick review. Chapter 2 is about the review of literature present on these topics. It is found that most of the studies have been carried out in the past on the framed buildings regarding the pushover analysis. In the last few years attempts are also made to consider the effect of torsion. Summarising the various contributions till now, it may be concluded that even in the earlier multimode pushover analysis the effect of different modes on the only static force distribution was considered. Further the spectral acceleration is obtained as a ratio of base shear and α times the weight of the building, where α is the modal mass coefficient. Only the first mode frequency could be utilized to convert the maximum displacement at the top to the spectral acceleration and the corresponding maximum potential energy (P.E.) could be used for equivalence of MDOF and SDOF. Therefore in chapter 3 which follows, the above limitation is removed as explained below. In chapter 3, the new methodology based on energy equivalence consideration is proposed step by step. For the given multistorey building, a displacement profile is applied to the building which is proportional to the effective mode shape. The effective mode shape can be the first mode shape or a combination of first few mode shapes. In the present study, two cases are considered. In the first case, the effective mode shape is considered to be the first mode shape itself whereas in the second case the effective mode shape is considered to be a linear combination of first three modes weighted by corresponding participation factors. After this, a nonlinear static analysis is performed on the structure considering the above displacement profile. Due to the above provided displacement profile, there will be yielding in the structure at a few locations. The yielded structure is again analysed for eigenvalues and mode shapes and the first three mode shapes are extracted along with their participation factors. Again the deflected structure is subjected to the deflection proportional to the effective mode shape and the analysis is continued until the collapse. The chapter also describes the details of the model used for simulation. Two kinds of simulation are performed on the model. One is considering only single mode of vibration whereas the other is considering the multiple modes (3 in this case) of vibration of the structure. Chapter 4 discusses the results of the simulations performed on the model. Single mode and multimode cases are treated and discussed separately. The proposed method is in its nascent stage and hence a lot of modification and validation work is needed to consider the method acceptable. The chapter 5 concludes the overall outcome of the present study and provides scope for the further study.

The thesis objective is design of methodology focused on accuracy measurement in field of GPS/GLONASS receivers. Text is devided into five main parts. The first one is focused on GNSS technology. Second one deals with used coordinate systems and map projections (ETRS89, WGS84, UTM, Gauss-Krüger). Next part discusses statistical methods. Part four is focused on hardware. Then the final part describes experiment realization and obtained data analysis.

Au Tchad, le Nord contraste avec le Sud. Alors que le Nord, aride consacré à l’élevage, est majoritairement de culture arabo-islamique, le Sud, savane boisée propice à l’agriculture, a épousé la culture occidentale. Avec la colonisation, puis avec les présidents sudistes Tombalbaye et Malloum, cette dichotomie s’est accrue ethniquement, religieusement... Le Frolinat, taxant les régimes sudistes de dominants, a pris le pouvoir après la guerre civile de 1979 et depuis lors, le Nord l’a confisqué, même si, une opposition politico-militaire sudiste, l’a contesté en permanence : face à Goukouni, les FAT, reliquat de l’ancienne armée nationale, coiffées par un organe politique, le Comité Permanent créé en 1979 lors du repli des sudistes au Sud, puis face à Habré une opposition armée dénommée Codos, créés pour résister à l’invasion très meurtrière du Sud par les forces de Habré. Les Codos purent s’imposer lors d’engagements considérables mais jamais déterminants. En effet, l’appui extérieur obtenu par Habré pour le conflit d’Aouzou, l’existence de multiples groupes de Codos, l’absence de base arrière... les rendirent vulnérables. Mais leur action a amené Habré à la négociation permettant un rééquilibrage politico-militaire. Les Codos (ré)intégreront les organes administratifs militaires et civils. Beaucoup de lycéens reprendront leurs études. Certains leaders seront nommés à de hautes fonctions et d’autres militaires prendront leur retraite. Ainsi émerge un Codo, Tokinon P. K. qui est devenu un homme d’affaires sans désavouer le Codoriste leader sudiste, Kamougué qui occupa plusieurs hautes fonctions politiques et créa son parti politique en 1992. Est-ce la fin de la guerre Nord-Sud ? / In Chad, the North contrasts with the South. While the arid and mostly arabic-islamic North is devoted to the breeding of animals, the South with its wooded bush appropriate to agriculture has adopted the Western culture. With colonization then with the Southern presidents, Tombalbaye and Malloum, the dichotomy has increased considering ethnic and religious matters. Criticizing the southern regimes to be dominant, Frolinat has overthrown the southern power after the 1979 civil war and since then, the North confiscated it, even if an opposition politico-soldier Southerner, disputed it permanently : against Goukouni, the FAT, the remnants of the former national army lead by a political organ, the Permanent Committee created in 1979 during the southerners’ withdrawal in the South, and against Habré and an armed opposition called the Codos. The Codo movement was created to resist against the extremely bloody invasion of the South by Habré’s forces. The Codos managed to resist with considerable commitments but not conclusive. Indeed, the fact that Habré obtained an outside support for the Aouzou conflict, and the existence of multiple groups of Codos, and the absence of a rear base, the Codos got vulnerable. But their action lead Habré to the negociations which permitted a new military and political balance. The Codos would then incorporate administrative, military and civil organisms. Many students would go back to school. Some leaders will be named with high positions and other soldiers will take their retirement. Then, one Codo emerged, Tokinon P. K, who became a businessman without downgrading the influence of Kamougué, the Codorist Southern leader who dealt with several high political functions and created his political party in 1992. Is this the end of the North-South war?