Dissertations / Theses on the topic 'Gourara'
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Moussaoui, Abderrahmane. "Hydraulique et évolution économique au Gourara." Nancy 2, 1985. http://www.theses.fr/1985NAN21005.
Full textBellil, Rachid. "Traditions orales, mémoire collective et rapport au passé chez les Zénètes du Gourara (Sahara algérien)." Paris, INALCO, 1994. http://www.theses.fr/1994INAL0014.
Full textOtmane, Tayeb. "Mise en valeur agricole et dynamiques rurales dans le Touat, le Gourara et le Tidikelt (Sahara algérien)." Besançon, 2010. http://www.theses.fr/2010BESA1038.
Full textThe Touat-Gourara-Tidikelt’s area, known as the “foggara’s land”, represents a quarter of Algerian Sahara, which is a part of one of the most arid area in the world. It was exploited for more than a millennium by the oases’ populations involved in the trans- Saharan trade. The socio-spatial organisation of the area was deeply affected by the French colonization during the first part of the XXe century and after 1962 by the Algerian policies based on spatial integration and economic development. In this area, two agricultural systems currently exist. The first one, is a traditional system based on the foggara’s irrigation, the second one emerged in the 1980’s throughout the rural landplaning projects and is based on modern agricultural practices and technologies. Those systems influenced each other and came to socio-spatial mutations partly due to the apparition of new actors. Those mutations combined with the gradual urbanisation of Sahara, the reorganization of the labour market and the trend to develop economic pluriactivity in oases, tend to deeply modify the Saharan rurality in the Touat-Gourara-Tidikelt’s land. Thus, the sustainability of these Saharan’s agricultural patterns deserves, nowadays, to be questioned and reconsidered. The Algerian development is based for its largest part on Saharan’s hydrocarbons, basically, the oases’ people don’t derive that much a profit from this extrovert economy. Inversely, the political choice to support Saharan’s agriculture offers real economical views, with regard to local development. Economically, the profitability of those agricultural systems will depend on their successful insertion within the national trade networks. Nevertheless, their impact on the local economy is real. Socially, Saharan’s rurality has built the greatest part of its identity on symbols that are linked to agricultural practices. However, Saharan’s massive urbanisation deeply shakes this legacy up. Finally, from an ecological point of view, the future of these agricultural systems will depend on the management of underground water resources, that are mostly non renewable
Bensadek, Cherifa. "Application de l'optimum écotouristique au Sahara algérien : projet-pilote de mise en valeur écotouristique à Charouine (Wilaya d'Adrar)." Thesis, Paris 3, 2014. http://www.theses.fr/2014PA030146.
Full textLaunching the process of establishing ecotourism in developing countries requires today a real strategy to help decision makers to ensure the sustainability of tourism development in their territory. Furthermore, with regard to desert areas, there is urgency to build a model of implementation of ecotourism projects applicable in these vulnerable areas and based on the concept of ecotourism optimum developed by Jean-Pierre Lozato-Giotart (2003, p.306) that promotes synergy between their different components: actors, resources (natural and cultural), and visitors local communities ... that is to say, a "balance between recreation and conservation practices of the host territories". Creating a grid of indicators specific to desert areas ecotourism is an approach that could help build development programs based on the principles of ecotourism optimum. Also, the application of the concept of ecotourism in the optimum southwest of the Algerian Sahara, through the pilot project of ecotourism in the Daïra Charouine, located in Adrar, responds appropriately to local development strategies of the southern regions of Algeria, the vast majority is classified as poor, although their wealth in biodiversity and culture has already been identified. This case study opens a new vision to carry on thinking about sustainability indicators ecotourism for their effective implementation in the context of planning and project management in desert environments
Blank, Tara M. Burggren Warren W. "Cardio-respiratory ontogeny and the transition to bimodal respiration in an air breathing fish, the Blue Gourami (Trichogaster trichopterus) morphological and physiological development in normoxia and hypoxia /." [Denton, Tex.] : University of North Texas, 2009. http://digital.library.unt.edu/permalink/meta-dc-11056.
Full textBlank, Tara M. "Cardio-Respiratory Ontogeny and the Transition to Bimodal Respiration in an Air Breathing Fish: Morphological and Physiological Development in Normoxia and Hypoxia." Thesis, University of North Texas, 2009. https://digital.library.unt.edu/ark:/67531/metadc11056/.
Full textAndurain, Julie d'. "Le général Gouraud, un colonial dans la Grande Guerre." Paris 4, 2009. http://www.theses.fr/2009PA040132.
Full textRaised in an ideology of retribution towards Germany for the loss of the eastern provinces, Henri Gouraud (1867-1946), a French colonial military officer, acquired his combat experience over twenty years of involvement in low-intensity conflicts in Africa. By 1914 this experience led him to significant innovations in methods of warfare on different battle fronts (Argonne, Gallipoli, and Champagne), and with different troops (colonial battalions and Garibaldian companies). After losing his right arm in the 1915 Dardanelles campaign, General Gouraud returned to active duty on a diplomatic mission in Italy, and then back to the front as head of the IVth Army. Soon after, he was ordered to Morocco to replace Lyautey who had been appointed War Minister. Upon his return to France in 1917 he was appointed head of the French IVth Army in Champagne on a permanent basis. On Petain’s directive, Gouraud built the defences that would stop Ludendorff’s Friedensturm (‘peace offensive’) on July 15, 1918 and allow Field-Marshall Foch, French Chief of Staff, to lead the last Allied counter-offensive. In recognition, General Gouraud and his troops were the first to enter Strasbourg in November 1918. Having been injured himself, he became a dedicated spokesman for wounded war veterans. He was also committed in his work to preserve the memory of French and American soldiers under his command who lost their lives on the Champagne front. At this stage of his life Gouraud returned to his Catholic faith. The Navarin ossuary, erected in Champagne in 1924, became the most important memorial for him and his men. Gouraud’s private archives, to this day unpublished, offer historians the opportunity to follow the life and career of this WWI officer in detail
Tounsi, Ibtissem. "Utilisation des systèmes d'information géographiques pour l'estimation de la production primaire herbacée sahélienne : application au Gourma malien." Paris 1, 1995. http://www.theses.fr/1995PA010626.
Full textThe purpose of this thesis is an assessment of malian herbaceous primary production at a regional scale from 1986 to 1990. The assessment of primary production is derived from a statistical spatial model which correlates the linear relationships between herbaceous primary production and geographical, climatic and ecological data. The use of coarse resolution satellite noaa-avhrr data allows the spacialization of field data. The proposed method allows using geographic information system (g. I. S. ) In order to assess primary production. This method can be yearly reproduced. It is also efficient for space-time assessment of variations of primary production. In spite of encouraging quantitative results, there is a strong uncertainty about assessment of herbaceous production primary values. This feature can be partly explained throughout a lack of knowledge concerning physics of remote sensing measurements. Another source of errors is the lack of certain key parameters important of environment
Diagbouga, Paulette Maïga. "Labdiédo : étranges destins : étude de chansons populaires de la région du Gourma." Paris 12, 1997. http://www.theses.fr/1997PA120042.
Full textLabdiedo's story is not a legend, bus a true event which happened at fana n'gourma1 in 1920, under a very naughty commandant or the colonial administration surnamed "fire". Labdedio was a gurmance chief and under his wife's pression who asked him to take his responsabilities about a case of honor, he killed himself. After this, his wife also swore fidelity after his death and killed herself as well. These tragic events gave to the griots the opportunity to sing, to glorify the hero everywhere you go, and by every population in the area. Another labdledio did the same action somme years later, but he is not sung as his predecessor. Our work is to show how one event can have several forms and consequently give birth to different narrations. In spite of the distance, the years, the changes through time and the ideology of any group, labdedio is and remains a guideline for the new generations
Mendez, Sanchez Jose Fernando. "Environmental Modulation of the Onset of Air-breathing of the Siamese Fighting Fish and the Blue Gourami." Thesis, University of North Texas, 2015. https://digital.library.unt.edu/ark:/67531/metadc822746/.
Full textTracol, Yann. "Etude des variations interannuelles de la production herbacée des pâturages sahéliens : exemple du Gourma malien." Toulouse 3, 2004. http://www.theses.fr/2004TOU30032.
Full textStrongly constrained by the soil water content and consequently by the West African Monsoon, the herbaceous layer shows a large space-time variability. The main goal of this thesis is to analyse and characterise the Sahelian grassland functioning thanks to models and field measurements to explain the primary net production variability in relation with a large number of forcing climatic and biotic variables like pasture pressure. The analysis of data recorded between 1984 and 2002 in a Sahel zone, the Malian Gourma shows us a complex response of the herbaceous strata in terms of production, fraction cover and diversity. Moreover, the field measurements available for the Gourma permit to describe a north-south gradient of vegetation according to the spatial variability of annual rainfall. .
SALOMON, ANNE-MARIE. "Le suivi medical et socio-economique d'une population nomade sinistree et deplacee dans le gourma malien." Angers, 1990. http://www.theses.fr/1990ANGE1057.
Full textBhardwaj, Gourav [Verfasser]. "Proteomic analysis of endomyocardial biopsies and plasma of dilated cardiomyopathy patients treated by immunoadsorption therapy / Gourav Bhardwaj." Greifswald : Universitätsbibliothek Greifswald, 2016. http://d-nb.info/1119751233/34.
Full textSoulé, Bio Goura. "Echanges frontaliers de produits agro-pastoraux et dynamisme du monde rural en pays Gourma : Burkina-Faso, Ghana, Togo /." Montpellier : CIHEAM-IAMM, 1992. http://catalogue.bnf.fr/ark:/12148/cb35535940g.
Full textCIHEAM-IAMM = Centre international de hautes études agronomiques méditerranéennes-Institut agronomique méditerranéén de Montpellier. Résumé en français. Bibliogr. p. 109-112.
Adjiou, Kodjo. "Les Exploitations agricoles comme reflet d'une société en changement Ngam-Ngam, Tchokossi et Moba-Gourma de Mango (Togo septentrional) /." Lille 3 : ANRT, 1990. http://catalogue.bnf.fr/ark:/12148/cb37602117v.
Full textAdjiou, Kodjo. "Les exploitations agricoles comme reflet d'une société en changement : Ngam-Ngam, Tchokossi et Moba-Gourma de Mango : Togo septentrional." Paris 1, 1987. http://www.theses.fr/1987PA010515.
Full textEL, ABBASS TIHAMA. "Comparaison de methodes d'interpolation de donnees geophysiques. Apport de la gravimetrie a l'etude d'un bassin precambrien superieur : bassin du gourma (mali)." Paris 6, 1993. http://www.theses.fr/1993PA066743.
Full textMoulaye, Mohamed. "La décentralisation dans le cercle de Gourma-Rharous (Mali) : études de cas des communes de Rharous, de Gossi, de Bambara Maoudé." Thesis, Aix-Marseille 1, 2011. http://www.theses.fr/2011AIX10220.
Full textDecentralization appears as one of the answers to the crisis of the governing of the state of Mali and as a compulsory condition to the rootedness of democracy and development.They had to find a solution to the quest of a greater autonomy in the management of their affairs that some regions of the country expressed -sometimes violently- even going as far as evoking the eventuality of a secession (Touareg revolt in Mali 1990-1996).The management of the revolt in Mali has given birth to decentralization. This one will have the prerogative of the management of the land through the new territory authorities.The traditional District officers are bound to a non-judicially established distribution of the land –causing usual actual occupations which involve endless disputes between owners (first occupants) and today’s occupants.The problems between the devolution and the land property lies in a very little clear management of the local authorities and of the arbitrary allotment of the meadows, the different growing of cram-cram, of fonio, of the rice-fields, of the grazing-grounds, of the water...The land laws ignore the judicial principles of the local land systems and leave the major part of the rural populations in a state of great precariousness and often of illegality regarding the government.They are a source of conflicts that can’t be solved in a permanent way because of the numerous arbitration authorities (customary-administrative-judiciary).Such institutional choices are mainly political choices.Through this study we intend to show the importance of the land in the process of decentralization, at the interface of ancestral rights and new rights brought about by decentralization and the problems that proceed from it
Diawara, Mamadou Oumar. "Impact de la variabilité climatique au nord Sahel (Gourma, Mali) sur la dynamique des ressources pastorales, conséquences sur les productions animales." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30029.
Full textSeveral studies on the primary production of Sahelian rangelands that are dominated by annual herbaceous indicate large spatial heterogeneity and high inter-annual variations in production associated with changes in rainfall distribution mediated by run-off redistribution itself mostly bound to soil type. In Sahel, most of the forage production occurs during the rainy season, which lasts three to four months. The management of the stock of fodder which is the main nutrition resource for livestock during the long dry season requires a good knowledge of its seasonal dynamics under the combined effects of climate and grazing pressure. This thesis aims to study the impact of climate variability on the dynamics of the pastoral resources of the Gourma in the North-East of Malian Sahel and to assess the impact of resources variations on animal production. The approach used is based on a joint seasonal monitoring of vegetation and stocking rate. It combines an analytical study and the modeling of the dynamics of forage resources in response to rainfall distribution and stocking rate. The thesis is composed of four studies. The first is a sensitivity analysis of forage production to the intra-seasonal distribution of rainfall. The second study evaluates the impact of domestic ruminants grazing on standing straw and litter disappearance rates during the dry season. The third study addresses the same question by modeling the dynamics of fodder resources during the season depending on the livestock grazing pressure. The fourth and last study evaluates the breeding productivity of the herds and the sustainability of Gourma pastoralism. The results highlight the low productivity of pastoral breeding despite an overall under-utilization of the forage stock in the dry-season. They indicate that in the Sahelian pastoral systems with rangelands producing less than 2000 kg DM ha-1 on average, and very limited use of supplementary feeds in the late dry season, livestock suffer of nutritional stress in the late dry and early wet season, as revealed by residual masses of straws and litter tilling less than 10 % of rangeland yield at the end of the rainy season
Nguyen, Cam Chi. "Dynamique, structure et production de la végétation du Gourma (Sahel, Mali) en relation avec les sols, l'occupation des sols et les systèmes hydriques : étude de télédétection à haute et moyenne résolution." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30143.
Full textThe Sahel is a semiarid region located south of the Sahara desert. The Sahel is particularly sensitive to climatic change and is subject to a high inter-annual and decadal rainfall variability. This region was marked by two periods of very severe droughts which occurred in 1983 - 1984 and 1972-1973 within a long dry period which began in 1970. This long drought deeply impacted water resources and vegetation, causing soil erosion, huge livestock losses and catastrophic harvests accentuating the impoverishment of the rural population. This study is an attempt to characterize and quantify changes in soils, vegetation and hydrology at the scale of the Gourma region (90 000 km²) located in Northern Mali from the last 55 years. Three types of remote sensing data have been used: 1) high spatial resolution Landsat images, 2) very high spatial resolution Geo-Eye images (Google-Earth) and 3) NDVI data measured by the moderate spatial resolution satellite (MODIS). The approach aims to characterize soil surface texture, local redistribution of rainwater by surface run off, surface hydrology and vegetation cover changes over the considered period. Temporal dynamics of vegetation and soils are pointed out. Particularly, this study shows the strong relationships between soil types, surface hydrology and vegetation dynamics at different spatial scales. Land cover changes are also characterized over the considered period
Marega, Oumar. "Changements socio-environnementaux et évolution des pratiques agropastorales en Afrique sahélienne : étude comparée entre le Ferlo (Sénégal), le Gourma (Mali) et le Fakara (Niger)." Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCC228/document.
Full textIn a biophysical context characterized by important socioenvironmental changes, the main objective of this PhD is to understand how much agropastoral practices modulatein space and time the vulnerability and adaptability of agroecosystems and sahelians agropastoral societies. To reach this target, this question has been applied at macro-regional scale, relying on three micro-regional study areas: Ferlo (Senegal); Gourma (Mali) and Fakara (Niger) in which perceptions and representations of societies have been studied in a sample of villages and camps. The method developed in this PhD has two components: 1) remote sensing mapping based on satellite image processing, and 2) geo-textual analyses based on lexicometry from semi-structured interviews. The remote sensing mapping allowed to diagnose micro-regional and local scales on land cover change since the 70s until 2010. The diagnosis, based on a multiscale approach, shows intra and inter regional contrasts in the evolution of soil cover by vegetation that invite to nuance observations indicating a greening of Sahel. The articulation of remote sensing with field investigations helped to understand, first the evolution of plant resources, then to consider the variety of responses from the Sahel rural societies to the 70’s and 80’s climate crisis, and to the recent socio-economic changes experienced by sahelian countries. Through lexicometry, geo-textual analysis based on semi-structured interviews allowed to approach the livestock farmer’s perception about the vulnerability and resilience of natural resources. Thanks to the expressed perceptions, the adaptive practices were identified in their variety. It enabled to show the sociospatial reconfigurations in the trajectories of agricultural and pastoral activities that partly explain the contrasts within and between regions observed in Ferlo, Gourma and Fakara
Nagasubramaniam, Ganapathy. "Housing for the poor : a comparative study of Hassan Fathy's housing experiment at New Gourna, Egypt, and Christopher Alexander's housing experiment at Mexicali, Mexico." Kansas State University, 1998. http://hdl.handle.net/2097/36078.
Full textBavay, Laurent. "Dis au potier qu'il me fasse un kôtôn: archéologie et céramique de l'Antiquité tardive à nos jours dans la TT29 à Cheikh Abd el-Gourna, Egypte." Doctoral thesis, Universite Libre de Bruxelles, 2008. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210569.
Full textDoctorat en Histoire, art et archéologie
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Berger, Julien. "Les associations de roches basiques-ultrabasiques néoprotérozoïques d'Amalaoulaou (Gourma, Mali), du Tassendjanet (Hoggar occidental, Algérie) et cénozoïques du Saghro (Anti-Atlas, Maroc) : témoins de l'évolution géodynamique de la ceinture péri-cratonique ouest-africaine." La Rochelle, 2008. http://www.theses.fr/2008LAROS236.
Full textThis study focuses on the Neoproterozoic to Cenozoic evolution of the eastern and northern border of the West African Craton. Four massifs, characterised by a basic-ultrabasic association located in Gourma (Mali), Western Hoggar (Algeria) and Anti-Atlas (Morocco) are investigated in order to constrain the evolution of the peri-cratonic suture from the Neoproterozoic to the Cenozoic. The Amalaoulaou massif (Gourma, Mali) represents the root of a Neoproterozoic intra-oceanic island arc. Its evolution begun with the emplacement (800-790 Ma) of tholeiitic basic magmas (now recrystallised in metagabbros) that have a source only slightly enriched by slab-derived components. This event corresponds to the beginning of the subduction, when the arc is still immature. Quartz and hornblende gabbros from the upper unit (~720 Ma) represent chilled melts that have a more pronounced arc signature, thus reflecting a higher degree of enrichment by slab-derived components in the mantle source. The syn- to late-magmatic evolution is marked by recrystallisation and localised melting in the deep arc crust, forming anorthositic to tonalitic melts (660 Ma) and garnet-clinopyroxene-rutile residues. The arc root is exhumed at low T conditions (550°C, 6-9 kbar), probably at the same time as the UHP eclogite exhumation. Oceanic slab subduction is rapidly followed by continental subduction. The Tiléouine/Tin Zebbane eclogites/amphibolites are intracontinetal tholeiitic metabasalts recrystallised under HP conditions (600°C, 17 kbar) during subduction of the Tassendjanet terrane. The eclogites were subject to chemical differentiation during HP recrystallisation due to interaction with fluids derived from the dehydration of continental sediments. Eclogites were subject to thermal reequilibration during the first steps of exhumation (750°C, ~10 kbar) and these conditions were progressively overprinted by low-T conditions (660°C, 7-8 kbar) just before the collision stage. The basic-ultrabasic intrusion of Tiléouine (Western Hoggar) is emplaced just after the collision stage (600-590 Ma). The parental magma of the series is most probably a continental tholeiitic basalt having a lithospheric mantle source. It has crystallised ultramafic cumulates dominated by olivine, spinel and pyroxenes and progressively followed by plagioclase-rich gabbros. Magma emplacement at 10-20 km depth is coeval with transtensional tectonics that probably induced lithospheric thinning. Reactivation of the peri-cratonic suture in intraplate anorogenic setting is marked by the emplacement of Cenozoic alkaline lavas in the Anti-Atlas (Saghro volcanic field, Morocco). The mantle-derived nephelinites are low degree partial melts products of a HIMU-bearing mantle source that was probably located close the asthenosphere/lithosphere boundary. Fractional crystallisation of K-feldspar, nepheline, apatite and titanite lead the parental magma towards phonolitic composition. Late-stage magmatic evolution of the phonolites is responsible for the development of accessory minerals that are usually found in agpaitic systems (hainite and lorenzenite). The magmas were emplaced along tension gashes or open fractures that have the same orientation as the principal stress in the southern Atlas system during Mio-Pliocene times
Misra, Gourav [Verfasser], Annette [Akademischer Betreuer] Menzel, Annette [Gutachter] Menzel, and Christopher [Gutachter] Conrad. "Remote sensing of vegetation phenology by MODIS - challenges in data processing and validation by multispecies ground observation and LiDAR. / Gourav Misra ; Gutachter: Annette Menzel, Christopher Conrad ; Betreuer: Annette Menzel." München : Universitätsbibliothek der TU München, 2020. http://d-nb.info/1217405755/34.
Full textBerger, Julien. "Les associations de roches basiques - ultrabasiques néoprotérozoïques d'Amalaoulou (Gourma, Mali), du Tassendjanet (Hoggar occidental, Algérie) et cénozoïques du Saghro (Anti-Atlas, Maroc): témoins de l'évolution géodynamique de la ceinture péri-cratonique ouest-africaine." Doctoral thesis, Universite Libre de Bruxelles, 2008. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210499.
Full textLe massif d’Amalaoulaou (Gourma, Mali) est interprété comme la racine d’un arc intra-océanique ayant enregistré la mise en place de magmas basiques (unité des métagabbros) à un stade immature de l’évolution de l’arc (subduction naissante) vers 800-790 Ma. Les gabbros quartziques (~720 Ma) et les gabbros à hornblende de l’unité supérieure ont des signatures de magmas d’arc plus franche, témoins d’une source mantellique plus enrichie par l’apport de la plaque océanique plongeante. Les métagabbros sont ensuite affectés par une recristallisation et localement par une anatexie en conditions du faciès granulitique. De nombreuses veines leucocrates se développent à ce stade, ce sont principalement des anorthosites et des tonalites (mises en place vers 660 Ma) provenant de la fusion partielle des métagabbros (850°C-1000°C, P>10 kbar). Cette fusion génère également des résidus denses à grenat-clinopyroxène-rutile, associations fréquemment présentes dans les racines d’arcs plus récents et reflétant la maturation de l’arc. L’arc d’Amalaoulaou est ensuite exhumé et charrié sur le craton ouest-africain dans des conditions de basse température et moyenne pression (550°C, 6-9 kbar), probablement au même moment que l’exhumation des éclogites du Gourma (~620 Ma).
L ‘épisode de subduction océanique est suivi par la subduction continentale dans le Gourma et le Hoggar occidental. Les éclogites/amphibolites de Tiléouine et Tin Zebbane (Hoggar occidental) sont des métabasaltes tholéiitiques enrichis et alcalins intracontinentaux ayant plongé à 60 km de profondeur (600°C, 17 kbar) lors de la subduction d’une partie du terrane du Tassendjanet. Même si la nature géochimique du protolithe est encore reconnaissable, ces métabasaltes ont subi une différenciation chimique lors de la recristallisation à haute pression par interaction avec les fluides issus de la déshydratation des métasédiments. L’exhumation (615-600 Ma) se fait relativement lentement, ce qui induit un rééquilibrage thermique (750°C, ~10 kbar) avant l’exhumation à basse température (660 °C, 7-8 kbar) précédant de peu voire synchrone à la phase collisionnelle.
L’intrusion basique-ultrabasique de Tiléouine marque la fin de la collision panafricaine dans le Hoggar occidental (600-590 Ma). C’est une ancienne chambre magmatique différenciée, mise en place entre 10 et 20 km de profondeur, et montrant une évolution magmatique depuis des cumulats ultramafiques riches en olivine, spinelle et pyroxène vers des gabbros riches en plagioclase. Le magma parental est d’affinité tholéiitique enrichie et tire probablement sa source de la lithosphère sous-continentale. La mise en place de cette intrusion est contemporaine d’un contexte tectonique transtensif induisant un amincissement lithosphérique au niveau du Tassendjanet.
Cette suture péri-cratonique est réactivée au Cénozoïque, lors de la convergence Afrique-Europe, ce qui se marque par la mise en place de laves alcalines, notamment dans l'Est de l’Anti-Atlas marocain (Saghro :10-3 Ma). Les néphélinites du Saghro sont issues de faibles taux de fusion partielle d’une source mantellique contenant un composant HIMU et localisée à la limite asthénosphère/lithosphère (70-100 km sous l’Anti-Atlas). La cristallisation fractionnée de ces magmas génère des phonolites, par fractionnement de feldspath, néphéline, apatite et sphène, principalement. L’étape finale de différenciation se marque par la formation de phases peu communes comme la hainite et la lorenzenite. Ces magmas se sont mis en place à la faveur de fentes de tension et de fractures ouvertes ayant la même orientation que la contrainte principale au Mio-Pliocène.
Doctorat en Sciences
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Keiluhu, Henderina Josefina [Verfasser], Michael [Akademischer Betreuer] Mühlenberg, and Rainer [Akademischer Betreuer] Willmann. "The impact of hunting on Victoria crowned pigeon (Goura victoria:Columbidae) in the rainforests of Northern Papua, Indonesia / Henderina Josefina Keiluhu. Gutachter: Michael Mühlenberg ; Rainer Willmann. Betreuer: Michael Mühlenberg." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2013. http://d-nb.info/1044871423/34.
Full textKeita, Daouda. "Le peuplement de la marge orientale du delta intérieur du Niger au premier millénaire après Jésus Christ." Thesis, Paris 10, 2011. http://www.theses.fr/2011PA100164/document.
Full textThe history of the population remains a key issue in archaeology. In this study, we proposed to trace the migratory history of the eastern margin of the Inner Niger Delta by examining macro-traces of assemblage identified on the ceramic from the Iron Age archaeological sites and located within three sub-regions (the Inner Niger Delta, the Gourma and the Dogon Country), which are part of the study area. It aims to understand the mechanisms of population of each sub-region, comprehend the relationship between the sub-regions and establish a dynamic relationship between ceramic traditions and communities in the region. Through a multidisciplinary approach involving both historical, ethno- archaeological and archaeological information, we have shown that settlement and ceramic traditions found in each sub-region and traditions are part of a historical and social dynamics common to the eastern margin of the inner Niger Delta
Artola, Dols Sergio. "VIDAS PARALELAS: HASSAN FATHY, JUAN O'GORMAN Y BALKRISHNA DOSHI. Paralelismos y divergencias a través de sus obras y teorías sobre arquitectura en el contexto postcolonial." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/59435.
Full text[ES] En la primera mitad del siglo XX, México, India y Egipto, se embarcaron en un proceso de autoafirmación cultural que tendrá su eco en la arquitectura nacional. Se trata de tres estados asentados en regiones con una herencia arquitectónica de miles de años que, lamentablemente, había sido denostada en una lucha de poder durante la ocupación occidental. Lejos de producirse un cambio, la fe ciega en occidente les hizo abrazar un estilo internacional que a duras penas podía ser aceptado por la falta de adecuación técnica y carestía de recursos económicos. Ante este panorama, surgieron las tres figuras que son objeto de estudio: Hassan Fathy, Juan O'Gorman y Balkrishna V. Doshi. Estos arquitectos presentan vidas paralelas; ubicadas tercamente a contracorriente en el siglo de la especialización y empeñadas en actuar como centinelas de las tradiciones locales. Los tres arquitectos tratarán de lograr respuestas a las cuestiones de identidad arquitectónica dentro de sus naciones embrionarias. Una identidad cuya modernidad se base en la tradición local y la tecnología apropiada al nivel de desarrollo de sus países natales y apropiable por sus beneficiarios. El estudio pretende demostrar el grado de afinidad de sus discursos, pese a la lejanía aparente de sus países de origen. Se incidirá sobre sus estrategias para afrontar aquellos problemas comunes que se encontraron en el ejercicio de su profesión. Estas estrategias configurarán un catálogo común de soluciones arquitectónicas aplicables en países en vías de desarrollo que pretendan alcanzar los beneficios de la globalización sin renunciar a sus orígenes.
[CAT] En la primera meitat del segle XX, Mèxic, Índia i Egipte, es van embarcar en un procés d'autoafirmació cultural que tindrà el seu ressò en l'arquitectura nacional. Es tracta de tres estats assentats en regions amb una herència arquitectònica de milers d'anys que, lamentablement, havia estat injuriada en una lluita de poder durant l'ocupació occidental. Lluny de produir-se un canvi, la fe cega en occident els va fer abraçar un estil internacional que amb prou feines podia ser acceptat per la falta d'adequació tècnica i carestia de recursos econòmics. Davant aquest panorama, van sorgir les tres figures que són objecte d'estudi: Hassan Fathy, Juan O'Gorman i Balkrishna V. Doshi. Aquests arquitectes presenten vides paral·leles; situades tossudament a contracorrent al segle de l'especialització i obstinades a actuar com a sentinelles de les tradicions locals. Els tres arquitectes tractaran d'aconseguir respostes a les qüestions d'identitat arquitectònica dins de les seves nacions embrionàries. Una identitat moderna basada en la tradició local i la tecnologia apropiada al nivell de desenvolupament dels seus països natals i apropiable pels seus beneficiaris. L'estudi pretén demostrar el grau d'afinitat dels seus discursos, malgrat la llunyania aparent dels seus països d'origen. S'incidirà sobre les seves estratègies per afrontar aquells problemes comuns que es van trobar en l'exercici de la seva professió. Aquestes estratègies configuraran un catàleg comú de solucions arquitectòniques aplicables en països en vies de desenvolupament que pretenguin aconseguir els beneficis de la globalització sense renunciar als seus orígens.
Artola Dols, S. (2015). VIDAS PARALELAS: HASSAN FATHY, JUAN O'GORMAN Y BALKRISHNA DOSHI. Paralelismos y divergencias a través de sus obras y teorías sobre arquitectura en el contexto postcolonial [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/59435
TESIS
Quesnel, Lionel Joseph. "Interactions between Pavlovian conditioning and behavioural function in the male blue gourami." 1991. http://hdl.handle.net/1993/17345.
Full textSehloho, Pulane Relebohile. "Structure of the fada-gourma shear zone Eastern Burkina Faso." Thesis, 2018. https://hdl.handle.net/10539/26175.
Full textThe Baoulé-Mossi Domain in eastern Burkina Faso is a greenstone belt-granitoid terrane, formed in a volcanic arc tectonic environment. Volcanism and magmatism were coeval at around 2239 Ma, and this formed the basement rocks of the Fada-Gourma Shear Zone (FGSZ) region. Crosscutting relations observed in the field, aided by zircon U-Pb age data reveal that pluton emplacement continued to post-2167±12 Ma. The youngest units are NW-trending dolerite dykes, dated at 1814±26 Ma in eastern Burkina Faso. The study area has five defined deformation events. D1 is responsible for the remnant NW-trending S1 foliation in some of the granite gneisses and the foliated and gneissic granodiorites outside of the shear zones. The σ1 principal compressive stress orientation was NE-SW. The metamorphic grade associated with D1 is amphibolite facies. D2 had a NW-SE oriented compressive stress direction, and this resulted in thrust faulting and the NE-trending dominant structural grain in the study area. The associated metamorphic grade for D2 is lower amphibolite facies. D3 involved a dextral-reverse slip along faults with a NE trend, with southeast-block-up displacement. The principal compressive stress axis was ENE-WSW to ESE-WNW directed. Metamorphic grade associated with D3 is greenschist facies to lower amphibolite facies. D4 caused the sinistral reactivation of the NE-trending D3 structures. The sinistral shear overprint the dextral displacement and a sigmoidal foliation related to D4 is discernible on the aeromagnetic imagery data. The principal compressive stress axis during D4 was NNE-SSW to N-S oriented. The metamorphic grade during D4 was greenschist facies. D5 is a late-stage brittle deformation that led the formation of NW-trending extensional fracture cleavage planes. The imagery data was integrated with field data to aid in establishing the orientation of foliations, and the kinematic and geometric information at map scale and at outcrop scale. Petrographic descriptions provided information at a micro-scale where available. The study area is host to gold mineralization, and there is a network of active artisanal mines in the northern domains of the study area. Tambiga Hill is one of the larger actively mined quartz stockwork vein deposits in the Gourma region. Gold mineralization is concomitant with quartz veins, and is hosted either adjacent to the quartz veins, or within the veins. Gold is either invisible, or occurs as nuggets. Pyrite, tourmaline, ankerite and minor malachite are also present as accessory minerals within the quartz veins. Gold mineralization is associated with the late stages of D2, and D3.
MT 2018
Liang, Chun-Chia, and 梁峻嘉. "Effects of dietary different carotenoids supplements on pigmentation of orange Honey gourami (Trichogaster chuna)." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/7kn5v2.
Full text國立臺灣大學
漁業科學研究所
105
This study focused on the different kinds and concentrations of carotenoids in diet for effects of pigmentation of Trichogaster chuna var. orange, to find out the optimal amount to enhance the skin color, and speculated that the carotenoids for the metabolism and accumulation. The experiment was conducted for 9 weeks. The first 3 weeks of feeding without carotenoids feed on the domestication of fish and fade. After 6 weeks of coloring experiments, and add zeaxanthin (Z), free-type astaxanthin (A), and ester-type astaxanthin (E) in the diet. The experiments divided into 10 groups: 0(Control)、Z25、Z50、Z75,A25、A50、A75,E25、E50、E75 (mg/kg diet). Before feeding the carotenoids diet, the percent weight gain and feed efficiency of each group was measured at weeks 0, 2, 4, and 6, respectively. The color of the fish body was quantified under the same condition, the color change was measured with color difference (△E). The results of this study indicate that the addition of carotenoids to the diet of the Trichogaster chuna var. orange was not significantly different for the percentage of weight gain and feed efficiency. The residual ratio of zeaxanthin was about 82% in the diets, about 57% in the free-type astaxanthin, and about 75% in the ester-type astaxanthin. The ester-type astaxanthin has a better preservation effect than the free-type astaxanthin. The content of carotenoids in the extracted fish skin and carotenoid content in the zeaxanthin group ranged from 5.86-7.11 mg / 100g. The content of free -type astaxanthin group ranged from 5.07-7.76 mg / 100g, while the content of ester-type astaxanthin group ranged from 6.96-7.94 mg / 100g, and the content of ester-type astaxanthin E75 was the highest. The addition of different carotenoids, fish skin with carotenoids in the amount of diet are added with the increase. The color difference value (△E) of the pelvic fin is greater than 6 in the group of pigment added, and reach the naked eye recognition standard. In the area below lateral line, only the addition of zeaxanthin group and E75 group to the naked eye recognition standards. The operculum color was identified by the naked eye with the zeaxanthin group. According to the accumulation of carotenoid in skin and color difference, zeaxanthin has higher accumulating capacity and skin coloring performance than that of astaxanthin. Ester-type astaxanthin has a higher accumulation than free-type astaxanthin. It is suggested that the addition of 75 mg / kg zeaxanthin can increase the coloring ability of Trichogaster chuna, 75mg / kg of free-type astaxanthin and 50mg / kg of ester-type astaxanthin.
Fry, Christian Theodor. "Experimental infection models and diagnosis of epizootic ulcerative syndrome in three-spot gourami (Trichogaster trichopterus) and rainbow trout (Oncorhynchus mykiss)." Thesis, 2014. http://hdl.handle.net/10210/11352.
Full textAphanomyces invadans is an oomycete associated with epizootic ulcerative syndrome (EUS). It affects more than a 100 freshwater and estuarine species of fish and is a serious threat to aquaculture and natural aquatic ecosystems. Currently, cases of EUS have been reported across Asia, Australia, North America and more recently Southern Africa. Outbreaks occur mostly during periods of sudden temperature change, such as heavy rainfall or change of seasons. These conditions favour sporulation of A. invadans, and low temperatures have been shown to delay the inflammatory response of fish to oomycete infection. Diagnosis of A. invadans is usually based on clinical signs and confirmed by demonstrating the presence of mycotic granulomas in histological section. Further diagnosis of EUS is made by isolation of A. invadans from internal tissues. Demonstrating typical asexual characteristics by inducing sporulation allows identification of the oomycete to the genus level. After inducing sporulation, the zoospores can be isolated for use in clinical infection of fish through subcutaneous injection or bath challenge systems. Standard molecular techniques such as polymerase chain reaction (PCR) have also been development for the fast and reliable diagnosis of the disease. The aim of this study was to perform different infection trials on EUS in two susceptible fish species, three-spot gourami, Trichogaster trichopterus, and rainbow trout, Oncorhynchus mykiss. Through initial trials, three-spot gourami was established as a suitable positive control species. Subsequently, hyphae were successfully re-isolated from infected fish and demonstrated as A. invadans, which was used in a further inoculation trial. Rainbow trout were challenged with A. invadans through intramuscular inoculation revealing varying degrees of susceptibility at different water temperatures. Detection of fungal hyphae and mycotic granulomas in tissue sections was achieved through histopathological examination, including the use of birefringence and fluorescents. Confirmation of A. invadans DNA in the various infection trials was done through PCR analyses. A histological grading system is proposed which will allow simplification of large scale qualitative microscopic analyses and identification of histological trends within a data set when analysing suspected cases of EUS. It is recommended that similar infection trials be applied to endemic species in Southern Africa to investigate their susceptibility to EUS.
Keiluhu, Henderina Josefina. "The impact of hunting on Victoria crowned pigeon (Goura victoria:Columbidae) in the rainforests of Northern Papua, Indonesia." Doctoral thesis, 2013. http://hdl.handle.net/11858/00-1735-0000-0001-BC6D-9.
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