Dissertations / Theses on the topic 'Sfax'
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Zaghden, Hatem. "Etude de la pollution par hydrocarbures des sédiments côtiers de la région de Sfax (chenal Sfax-Kerkennah)." Paris 6, 2007. http://www.theses.fr/2007PA066389.
Full textBen, Amor Mohamed Ridha. "Habitat et ségrégation urbaine à Sfax (Tunisie)." Lille 3 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37611765b.
Full textAloulou, Mohamed. "Les bùrj-s de Sfax : étude anthropologique." Paris 8, 2008. http://www.theses.fr/2008PA083019.
Full textThis thesis seeks to investigate a suggested framework for daily life in Tunisia, with special reference to the Sfax region as a propitious case study. This anthropological study is situated within the selected framework as well as the analytic toolkit that draws on my M. A. Thesis entitled "Structure, space and daily-life in Tunisia at the pre-colonial and colonial era : the Sfax region as a case study". However, it must be noted at this stage that we have deemed it necessary to develop this question by taking into consideration the complexity of the "Bùrj phenomenon". Consequently, this term is to be developed on the architectural (i. E. At the level of the structural organisations of the abode), family (i. E. The forms of social interaction inside the bùrj) and cultural (i. E. Rituals, symbols & social heritage) planes. Thus, our aim is to study Sfaxian bùrj as a residential space used by the Sfaxian population at a precise period ranging from the 17th to the 20th centuries. To this effect, this fortified structure represents the distinctive particularity of Sfax compared to the other Tunisian cities ; hence, our decision to single it out as a corpus for our socio-anthropological analysis. The importance of the Sfaxian residential space stems from its capacity to unravel the relationship between a population and the space that it occupies. Similarly, to identify the specificities of a social frame, it is essential to review the traditional habitat because it translates the system of values that governs the relations between the different family members. Moreover, this suggested framework has the potential of being significant thanks to its socio-cultural suggestions
Ben, Amor Mohamed Ridha. "Habitat et ségrégation urbaine à Sfax (Tunisie)." Paris 5, 1988. http://www.theses.fr/1988PA05H008.
Full textFakhfakh, Nabil. "Le répertoire musical de la confrérie religieuse "al-Karrâriyya" de Sfax (Tunisie)." Paris 8, 2007. http://octaviana.fr/document/146280849#?c=0&m=0&s=0&cv=0.
Full textFounded in 1645 by the sheikh Abû-l-Hassan al-Karrây (1617-1696), a religious man known to be in favor of artistic creativity, the religious trend (tarîqa) Karrâriyya is one of the most known trends in Sfax, a costal Tunisian city. The followers of this trend used to meet in the zâwiya (place of cults) and sing the muwashshahât (sing. Muwashshah : a poetic form) written by sheikh Karrây himself. The muwashshahât originate from the literary language or the colloquial one and deal with different subjects: idolatry, submissiveness to divine words, praising Prophet Muhammad etc. It is a singing similar to the traditional Tunisian nûba that comes forward as a series of vocal components that are characterized by the same mode (tba`) and the diversity of open and rhythmic movements moving from the slowest to the most lively ones. This musical tradition is a perfect synthesis of the structural elements of the traditional Tunisian music called (mâlûf), and remains as an inevitable reference in the identity of the Tunisian music. The followers of this tarîqa ensured the continuity of this tradition until the 70s of last century, a period through witch all mystic manifestations knew a remarkable decline if not a total end. This musical repertory, which has been transmitted only orally in the traditional way for about three centuries, has been affected throughout years, by notorious deformations in addition to the total loss of musical pieces. Thus, one of our principle motivations was to try to collect this precious repertory or at last what remains of it, to musically transcribe it with complete reproduction of lyrics translating some of them to the French language hoping to modestly contribute in valorizing this repertory, analyzing and rehabilitating it for the reader, Arab as well as Occidental. Such a work seemed to me necessary for it should at least save this repertory that belongs to the collective traditional memory, from forgetfulness especially that the current music standardized and commercially broadcasted by the media threatens this patrimony
Fehri, Noômène. "Les rapports entre les processus morphogéniques et les pratiques agro-pastorales dans la plaine oléicole de Sfax : exemple du bassin versant de l'oued Chaal-Tarfaoui (Plaine de Sfax, Tunisie centro-orientale)." Aix-Marseille 1, 2003. http://www.theses.fr/2003AIX10103.
Full textMahfoudh, Faouzi. "La ville de Sfax : recherches d'archéologie monumentale et évolution urbaine." Paris 4, 1988. http://www.theses.fr/1988PA040025.
Full textThis thesis is a study about the historical monuments in Sfax: surrounding walls, hydraulic reservoirs, the great mosque, oratories, urban and suburban houses and the shopping center site. The analysis of the buildings is based on the textual and epigraphic documentation. For this particular point, a "corpus" of the monumental inscriptions has been made out. It gave us the opportunity to understand the evolution of the monuments and the development of the city in space as well as in time. Then, it appeared to us that Sfax kept a medieval aspect inspired by the "basse antiquité". The structure of the urban frame has not changed a lot since the 9th century. Throughout his history, the city has remained very close to Ifriqiya and to different arts which happened to come across. Nevertheless, the city has developed, in parallel, a regional specificity which is especially perceptible in the modern age
Mahfoudh, Faouzi. "La Ville de Sfax recherches d'archéologie monumentale et évolution urbaine /." Lille 3 : ANRT, 1989. http://catalogue.bnf.fr/ark:/12148/cb376155663.
Full textElloumi, Jannet. "Distribution et rôle des microorganismes de la boucle microbienne dans la saline de Sfax : contribution à l'étude du fonctionnement microbiologique d'un milieu extrême." Clermont-Ferrand 2, 2006. http://www.theses.fr/2006CLF21639.
Full textDahech, Salem. "Le vent à Sfax (Tunisie) : impact sur le climat et la pollution atmosphérique." Paris 7, 2007. http://www.theses.fr/2007PA070002.
Full textThis work aims to studying wind and weather types including their effects on meteorological parameters and atmospheric pollutants space distribution in Sfax agglomeration. At first, wind and weather types are determined using three-hourly meteorological data. Sunny days are the most frequent; they are related to NO wind in winter and to sea breeze or sirocco during the other seasons. The characteristics of these tow last winds are detailed on the basis of data recorded by National Institute of Meteorology and private automatic weather stations. At second, temperature, humidity and sea breeze space distribution is analyzed on the scales of the agglomeration, the quarter and the street by fixed and itinerant measurement as well as NOAA-AVHRF data. Weather types, building areas density and geometry, streets orientation and depth are the main factors explaining the space distribution of weather variables indicated above. The peaks of pollution (CO, SO2 and NOX) recorded in the downtown area by the National Agency of the Environmental Protection station are observed between 20h and midnight, during the sea breeze days at the nocturnal shift. CO measurements by portable sensors as well as the numerical modelling of the SO2 rates show the impact of wind speed and direction, boundary layer height, emission sources (road traffic, SIAPE and dumpsite) and urban morphology on the air quality. By means of Geographical Information System, the area affected by SO2 rates exceeding WHO recommendation is defined
Siala, Mourad. "La Hadra de Sfax : rite soufi et musique de fête." Paris 10, 1994. http://www.theses.fr/1994PA100083.
Full textSince few decades, after the extinction of the religious brotherhood’s manifestations in sax, the Hadra, which is the music of these brotherhoods, is no longer played except in profane context that is family parties. My first intention was then to historically review this music and examine its organization, its activities, and its influence on its auditors in the past and in the present. My second intention was to show the originality of this music by analyzing its musical system and the transcription of its repertoire, its musical text and words in native language. The Hadra, as a musical concert, goes back at the latest to the end of the XIXth century, the period during which the main mystic edifices of major brotherhoods were found. Other than its main function of dancing, the Hadra is known for its magic influence on certain people who, when listening to some of its musical airs, loose control of themeselves and become in a state of France. The behavior of these subjects, during this trance state, is related to possession, but this is not recognized as such by the society. A subject, as said has the "ahwal" - i. E. Has a predisposition to the trance by listening to its predilection air - is not considered as posseded even if he really is, and that he enters this state for therapeutic purposes. The rhythmic system represent the strongest and the most important side of the musical system, in general, which explains the predominance of percussion instruments in the instrumental constitution of the Hadra
Zribi, Ali Abdelmônem. "Grand Sfax : dynamique de l'habitat spontané face aux politiques urbaines." Paris 1, 1991. http://www.theses.fr/1991PA010623.
Full textSpontaneous lodging in sfax was limited to isolated and marginal quaters in the beginning of our century. To-day it has become a fundamental component of city-building and it seems to be the only possible answer to the growing needs of social housing. This study proposes to tackie the problems around spontaneous lodging through the example of greater-sfax (300. 000 inhabitants), to analyse means of governmental interference in this original form of urbanism. It tries to understand the underlying logic, and looks to future possibilities for this new, social and geographical reality. It is a popular challenge by groups, eager to build their town and showing every day to urbanists and to political authorities that the only succesful way is to act with the people, for the people and letting the people act by itself. But above all analysis and conclusions, this study is first of all a demonstration that spontaneous lodging is highly at stake as a basic social and political fact, a stade cannot deny that
Msakni, Bargui Faten. "La prostitution clandestine à Sfax : migration, santé et économie informelle." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0684/document.
Full textCertainly the study of the world of illegal prostitution and meeting clandestine prostitutes are, for us, a very rewarding experience. However, contacting these women, and therefore sharing their experiences is by no means an easy task. While studying this particular community, we faced several difficulties: getting access to infamous places, resisting to collaborate on the part of certain prostitutes, swindle and spending big amounts of money. Our goal is to understand the phenomenon of clandestine prostitution in Sfax City, the profiles of women who live there, including those from migration, as well as the push factors to this condition. Our main motivation is to explore un understudied topic in the sociological literature in Tunisia. We opted for a perspective of comprehensive sociology. Meeting clandestine prostitutes have been arranged through several actors; pimps, real estate agents, clandestine prostitutes, peer educators. Life stories of 25 Tunisian women were drafted based on observations made in the tea rooms and on the boulevards of the city of Sfax, which allowed to explore in depth their prostitution experiences. In addition, our experience with the Tunisian Association to fight Sexually Transmitted Diseases and AIDS, based in Sfax, as a social worker in the framework of the Global Fund to fight AIDS, Tuberculosis and Malaria
Jarraya, Mounir. "Biométéorologie de la morbidité respiratoire dans le secteur public de la santé à Sfax (Tunisie)." Paris 7, 2009. http://www.theses.fr/2009PA070057.
Full textLocated on the coast of Tunisia, the agglomeration of Sfax (500000 inhabitants) is characterized by a high demand for basic care, which represented by the growth of respiratory morbidity in the basic Health sector over the period 1995-2004. The temporal variability of this morbidity, expressed by the medical consultation leads to suggest a relationship with the climate situation in Sfax. We analyse the aspects of the relationship between respiratory illness and the environments bioclimatic types, especially in winter and summer. The objective of this study is to focus on some meteopathological modes associated with the various biometeorologicals environments. The rapport between the biometeorological environment and the respiratory morbidity emerge the different interval time and meteosensibility of diseases. Angina and otitis (bacterial origin) are sensitive to thermo- humidity setting while nazofaringitis, pulmonary affections and influenza (viral origin) is rather sensitive to thermo-Anemometer component. The weather types frequent in summer and winter, which determinate the biometeorological environment and then the meteosensibility of the respiratory consultation. The meteosensibility is also related to the age, because our surveys reflect a pathological specification at the age categories, that meaning an exposure variation to the effects of the biometeorological environment
Moualem, Rim. "La Médina de Sfax et son souk : mutation d’un héritage urbain." Paris 10, 2008. http://www.theses.fr/2008PA100078.
Full textIn spite of its small surface (24 hectares), and its old planning that goes back to the IXth century after J. C, the “medina” (city) of Sfax seems to be an exemplary illustration of an original urbanization process of regional (area) development background. Up till the nineteen sixties, the city of Sfax did not know huge architectural transformation (alteration). Its originality resided in the exact space balance between the different functions: Accommodation, Business (commerce), and Artisan and Public equipments. Because of the “Soukalization” witch took more and more place in the city, this balance is actually interrupted. Hence (therefore), the businessmen and the craftsmen that represent the wealthy families left gradually the city in order to settle in the outskirts. The houses witch were left, were partly converted to shops, workrooms, and storehouses; whereas others were occupied by people coming from the rural depopulation. This architectural disorder caused a disastrous impact. Nowadays, we can surely say that the city of Sfax (like the city of Fès in Morocco) is an “atelier-city”. The implantation of the economic activity witch is turned towards business (commerce) on the one hand and the morphological alteration (transfer) of houses to “Souks” on the other hand, made the city of Sfax to become much more like a big “Souk”. In other wards, a big mall or shopping centre rather than a producing centre
Gasmi, Monia. "Espace et acteurs du développement industriel dans la ville de Sfax (Tunisie)." Université Louis Pasteur (Strasbourg) (1971-2008), 2003. http://www.theses.fr/2003STR1GE03.
Full textFacing the gravity of the challenges and the complexity of the problems linked to the industrial activity, the role of which is essential for the future of emerging countries like Tunisia, we are focusing more closely on the industrial phenomenon in the city of Sfax. A geographical analysis of the city's industry made it possible to answer several questions dealing with the location of the industrials plants and the factors explaining their distribution. Our approach, combining theoretical reflections, observations and analyses, has a spatial dimension since industry can be located and therefore mapped and interpreted. Observation is an essential stage, but it is not sufficient to give an account on the complexity of the structures and dynamics. It is with this aim in view that our explanatory analysis retained three different aspects. Firstly, the distribution of the industrial areas is apprehended using spatial analysis methods. Secondly, the analysis of the current development processes is underlined. Thirdly, the study of the problems involved in this organisation al mode which is threatening the population and becomes a growing challenge to the city, is deepened. Our analysis reveals on the one hand the existence of traditional industrial organisation types, shown by the center-periphery model and on the other hand, a development mode called Local Productive System (LPS). In its spatial configuration this system is in some cases contradictory: after succeeding in offering scale economies, it is nowadays at the origin of urban diseconomies that local authorities cannot face. The concentration of industry on the coast and the existence of companies being noxious to the environment are two variables of negative influence on the LPS and can be thus considered as dangerous and constraining factors to the future strategies of development
Lahmar, Mouldi. "Origines et transformations d'une société fellah l'exemple de l'arrière pays de Sfax (Tunisie) /." Lille 3 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376068617.
Full textLahmar, Mouldi. "Origines et transformations d'une société fellah : l'exemple de l'arrière-pays de Sfax, Tunisie." Paris, EHESS, 1987. http://www.theses.fr/1987EHES0026.
Full textHelali, Hayet. "Etude du phosphogypse de Sfax (Tunisie) en vue d'une valorisation en technique routière." Toulouse, INSA, 2004. http://www.theses.fr/2004ISAT0031.
Full textPhosphogypsum, subject of this research, is a by-product, by dehydrate process, of phosphoric acid production of Sfax factory. An important bibliographical review shows that phosphogypsum is a worldwide known waste, for which the composition and the characterisation depend on the ore and on the manufacture process, for which we note difficulties in its use. The characterisation of the Sfax phosphogypsum has allowed finding out that it is a material for which the characteristics change not so much during its storage. It has a low radioactivity level, compared to other phosphogypsum in the world, but it presents also a very bad behaviour to immersion. The study of the effect on the geotechnical and mechanical properties for a neutralisation by limestone sand and by a cement treatment, essential for a road use, show mixture solidification, an improvement in its mechanical characteristics, a reduction in the solubility, and impurities trapping thus limiting their spill in the environment. The study of the durability in the local climatic conditions (south of Tunisia) of the retained formulation is conducted following an experimental program established on the basis of the meteorological data and simulating rainy events of a year over a period of three months. The obtained results show a good durability for the formulation based on rainfall measurements of the Tunisian south, compared to the one submitted to the north climate, for which we observe a resistance loss at age of 90 days. The minimal characteristics imposed by the technical guide for soil treatments (GTS, 1997) are satisfied for the final chosen formulation
Baba, Hamouda. "Contribution à l'étude immunologique et épidémiologique de l'hydatidose dans la région de Sfax (Tunisie) : étude analytique comparative du liquide hydatique et du surnageant de culture des scolex d'Echinococcus granulosus." Université Joseph Fourier (Grenoble), 1992. http://www.theses.fr/1992GRE18006.
Full textMakni, Jihène. "Entrepreneuriat et développement local : analyse théorique et appliquée à la région économique de Sfax." Nice, 2011. http://www.theses.fr/2011NICE0018.
Full textEntrepreneurship is a concept which enjoys an interesting popularity at the level of research as well in practice. This research examines the major figures of the entrepreneur which are mobilized by economic changes. The objective of our work is to construct links between the conceptual dimensions and the contextual events which took notice of the return of the entrepreneur. In this research, we aim at exploring specific forms of entrepreneurship based on a historical perspective combined with a dynamic vision. Therefore, this thesis presents a synthesis of the genesis of the research in the field of entrepreneurship. In the context of local development, a particular form of entrepreneurship presents an interesting way which takes into account more purposes than traditional entrepreneurship does. We will see that the new relations with space and time induce a more collective entrepreneurship based on accessibility rather than proximity. For fifteen years, we have noticed new developmental practices. The latter which are founded on the spatial concentration of small but strongly interdependent businesses, generate various processes of development. Questioning these processes and showing how they carry a different approach to development in the southern cities, is essentially the objective of this thesis. The case of Sfax is considered here. Based on applied research, we analyze the economic dynamics of this region as well as the link between entrepreneurship and job creation by means of contextual factors which favor the spin-offs of businesses and enable cooperations to practice competition
MAALEJ, AHMED. "Modelisation couplee dynamique-physicochimie de la pollution atmospherique dans la region de sfax (tunisie)." Toulouse 3, 1997. http://www.theses.fr/1997TOU30221.
Full textRouis, Badreddine. "Contribution à l'utilisation de sous-produits industriels : application au cas du phosphogypse de Sfax." Phd thesis, Grenoble 1, 1991. http://www.theses.fr/1991GRE10087.
Full textKhemakhem, Hajer. "Contribution à l'étude du fonctionnement écologique de la saline de Sfax : analyse statistique et modélisation." Thesis, Besançon, 2012. http://www.theses.fr/2012BESA2023.
Full textThe distribution of phytoplankton abundance, biomass and species composition coupled withenvironmental factors and metazooplankton was studied relatively intensively and over a period of fourconsecutive years in five ponds featuring a gradient of increasing salinity from near to that of sea water to a ninefoldconcentration from 2000 to 2003. The results indicate that the physical characteristics of the water(temperature and salinity) were quite similar over the years. The concentrations of nutrients decreasewith increasing salinity. The diversity of the phytoplankton community revealed a spatial variation. Thusdiatoms dominated in the first ponds A1, A16 and C2-1, followed by dinoflagellates. The Chlorophyceaedominated the hypersaline ponds M2 and TS. Cyanobacteria were relatively abundant in ponds M2 and TS. Thehighest phytoplankton abundances and biomasses were recorded in the hypersaline ponds, resulting from theproliferation of the Chlorophyceae Dunaliella salina. As a result of the stability of the environmental factors, theinter-annual study of the phytoplankton succession in the solar saltern of Sfax, revealed slight differences. Giventhe importance of salt stress the phytoplankton community remains in juvenile stage.To better understand the interaction between abiotic and biotic parameters, many statistical analyses(Pearson correlation test, ANOVA, PCA, Co-intertia….) were performed. The determination of the relationshipbetween physical, chemical and biological parameters in the first marine pond A1 (salinity: 45 p.s.u) appears tobe useful for the development of an ecological model of the solar saltern of Sfax. This model has been developedon the basis of the biomass of the phytoplankton community in relation with nitrogen and phosphorous nutrients.A comparison between simulation results and observations indicated that the ecological model was able toproduce a satisfactory seasonal and inter-annual phytoplankton dynamics. Thus, the results of the ecologicalmodel were in accordance with the observations. According to the simulations, the decrease of nutrientconcentrations and the increase of the water inflow into the pond A1, cause a decrease in phytoplankton biomass.Due to climate change, the disturbance of the dynamics of phytoplankton biomass was observed. Especially, thesimulations predict acceleration of phytoplankton blooms due to dry year. Finally, the model developed in thisstudy gives new insights in order to simulate a combination of independent scenarii
FLEURET, CLEMENCEAU MARIE-JOSEE. "Les icthyoses congenitales : apport ultrastructural ; a propos de 14 cas provenant du c.h.u. de sfax." Amiens, 1990. http://www.theses.fr/1990AMIEM112.
Full textAljane, Nabil. "La Fabrique du patrimoine des médinas en Tunisie : politiques et pratiques dans la ville de Sfax." Thesis, Montpellier 3, 2019. http://www.theses.fr/2019MON30074.
Full textThe objective of this thesis is to evaluate the local implementation of the safeguard policies of urban heritage medina in Tunisia. We will question these policies through their roles in the territory and to understand their effects on historic centers. Our approach consists in a comparison to the local application of safeguard policies, through case rehabilitation projects and backup done in Tunisian Medinas. We trace the birth of these public instruments to its implementation by the various actors and we confront local realities. We finally state the place of the involvement of the social dimension in safeguarding projects
Laroussi, Foued. "L'alternance de codes arabe dialéctal/français : Etude de quelques situations dans la ville de Sfax (Tunisie)." Rouen, 1991. http://www.theses.fr/1991ROUEL137.
Full textLanguages in contact, the research domain in which this study has been carried out, does not only involve languages in themselves, but also speakers and societies in which these languages are used, as well as the cultures confronted in this contact. For these reasons, during this research, we have opted for a sociolinguistic approach based on investigations (city of sfax 1989) and on semi-directed interviews, our objective has been to define the caracteristics and the specificities of Arabic French code-switching. After a presentation of the tunisian sociolinguistic situation which caracterized by the coexistence of standard arabic dialectal arabic and french, we deal with questions related to collecting data and to the difficulties we had to face. We also deal with the following questions : how to spot various manifestations resulting of languages in contact such as borrowing code-mixing, code shifting or interference ? Which grammar should we use to analyse the code-switching ? How to define the discursive functions of the dialectal arabic french code-switching ? What are at last the factors which could explain or determine the linguistic choice ? Finaly, the reflexion has been oriented towards the analysis of the "epilinguistic" speech (value judgements) on the languages in place and their respective use
Lotfi, Abdeljaouad. "Inscriptions arabes des monuments islamiques des grandes villes de Tunisie : Monastir, Kairouan, Sfax, Sousse et Tunis." Aix-Marseille 1, 2001. http://www.theses.fr/2001AIX10030.
Full textTarchoun, Abdelhariz Mounira. "Sfax, ville tunisienne à l'époque ottomane : sa topographie, son histoire urbaine, sociale, économique et ses waqfs." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0058.
Full textTitle: Sfax during the Ottoman Period. Its Topography, Its Urban, Social and Commercial History and Its WaqfsWaqf, the institution which played a primordial role in urban development and organisation of space in Ottoman-era cities, underlines relations between men and women and the built environment. Sfax is the example studied here and the role of waqf in intra and extramuros urban developmentIf the waqf documents represent a well-researched field nowadays, this is not the case for the study of the nature and typology of these documents nor for the terminology and diversity of information found within them.The PhD centers on the impact of waqf on the urban fabric of Ottoman Sfax from the end of the 16th century to the French colonisation. It studies urban life organised around places supported by waqf (mosques, zawiyas) as well as waqfs whose revenues supported society’s poor or the city infrastructure such as the maintenance of its walls.Furthermore, waqf participated in reinforcing the presence of European merchants and traders and the development of commercial life in Sfax
Ghanmi, Fadoua. "Production, purification et caractérisation de peptides antimicrobiens d’archées halophiles isolées de la saline de Sfax en Tunisie." Thesis, Paris, Muséum national d'histoire naturelle, 2016. http://www.theses.fr/2016MNHN0016/document.
Full textThe solar saltern of Sfax is a hypersaline located in the central area of the eastern coast of Tunisia. In this study, we isolated, identified, and characterized halophilic strains producing antimicrobial peptides (halocins), aiming to understand their role in microbial interactions in hypersaline environments. Two ponds (TS18, 390 g.L-1 NaCl and M1, 200 g.L-1 NaCl) were selected for sampling. Thirty-five halophilic strains have been isolated and characterized, among which 11 displayed antimicrobial activity. Three of them produced antimicrobial substances of proteinaceous nature. Using PCR and RT-PCR, we have demonstrated that Halobacterium salinarum ETD5 and ETD8 express the gene encoding halocin S8, a 3.6 kDa peptide previously isolated from a strain S8 unidentified. The peptide was purified from cultures of strain Hbt. salinarum ETD5. Following bioguided purification, the active fractions revealed two protein bands of 8 and 14 kDa exhibiting antimicrobial activity. N-terminal sequencing and mass spectrometry analyses allowed identification of these two halocins. The 8 kDa band corresponds to halocin S8, undergoing a different proteolytic post-translational processing from that originallydescribed. Cloning and sequencing of the gene encoding the precursor of halocin S8 showed that the sequence is identical for both strains ETD5 and S8a. The 14 kDa band is a new halocin termed halocin S14. Halocin S14 corresponds to an N-terminally truncated portion of the archaeal Mnsuperoxide dismutase (SOD). This could result from divergent evolution of a gene encoding two distinct proteins, or a different post-translational processing of SOD. Our study helps to better understand which molecules are involved in microbial interactions within hypersaline environments and and how they contribute to the competitions in such extreme environments, which are susceptible to give rise to original structures and modes of action
Belhareth, Taoufik. "Le transport collectif dans les grandes villes tunisiennes Sousse, Sfax et Tunis : constituants et articulations avec l'espace urbain /." Tunis : Faculté des lettres de la Manouba, 1990. http://catalogue.bnf.fr/ark:/12148/cb37635843p.
Full textBibliogr. p. 321-328.
Marot, Isabelle. "Contribution à l'étude de la maladie de Behcet : à propos de 150 cas colligés à l'hôpital de Sfax." Montpellier 1, 1989. http://www.theses.fr/1989MON11338.
Full textLouati, Afifa. "Etude de la pollution par hydrocarbures des sédiments côtiers de la région de Sfax (Golfe de Gabès - Tunisie)." Paris 6, 2003. http://www.theses.fr/2003PA066580.
Full textChaari, Nizar. "Les rapports d'échange oléiculteurs-transformateurs dans la filière huile d'olive tunisienne, concurrence ou coordination : cas de la région de Sfax." Toulouse, INPT, 1997. http://www.theses.fr/1997INPT004A.
Full textAMDOUNI, RIDNA. "Etude geochimique des saumures libres, des sediments et des sels dans les marais salants de la saline de sfax (tunisie)." Paris 7, 1990. http://www.theses.fr/1990PA077109.
Full textOmrane, Fatma. "Human health risk assessment of occupational exposure to trace metallic elements mixtures in metalworking industries in the Sfax metropolis (Tunisia)." Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0097/document.
Full textTrace metallic elements (TMEs) are pollutants of great concern even in trace amounts because of their toxicity and cumulative property. Some of them can be carcinogenic. The Sfax metropolis, located in the southern region of Tunisia, has been affected by releases of TMEs for decades. Several studies confirmed that this pollution is predominantly originated from anthropogenic sources, mainly from industrial activities. It represents a threat to the health of residents, particularly for those also exposed during occupational activities in industrial processes. The present study aims to assess health risks associated with occupational exposure in industries handling TMEs in their production processes, following the human health risk assessment approach. To this end, five companies using raw material containing TMEs to produce a variety of metallic products accepted to participate to the study. The metals that were investigated are Al, Cr, Ni, Cu, Zn and Pb. Mathematical models for estimating occupational exposure to chemicals were used to predict indoor air TME exposure levels in 15 different job tasks. Air monitoring was conducted in order to compare the predicted workplace air concentrations versus the direct measured ones, using both workplace-fixed monitors and personal samplers. And finally, urine samples were collected from 61 workers to assess whether TMEs excretion correlate with job exposure levels. Globally, the predicted air estimates relate well with measured concentrations over the whole set of job tasks. Better predictions were found for certain activities, in particular for steel cutting and welding processes. The values that correspond to the 90th percentile of the exposure distribution were then used in the interaction-based hazard index HIint to assess health risks associated with the mixtures of TMEs. Total cancer risk was also investigated. Results showed high exposures for metals that may elicit respiratory conditions, with a HIint reaching 93.6, the highest levels being for the shielded metal arc welding and metal shearing and slitting tasks. The risk is enhanced by a synergetic effect between Cr, Ni and Cu. High risks of lung and kidney cancers were demonstrated (the predicted life-long total cancer risk for exposed workers is 3.7×10-4). This work shows that mathematical models can be accurate in predicting TME airborne exposure levels for several processes in the metallurgic industry, a result that is of interest to help the different stakeholders to monitor efficiently exposure surveillance and abatement. Progress in industrial hygiene is needed in this industrial sector to reduce the high level of health risks currently experienced by the metalworking workers
MAREK, GAFFET ANNE. "Dosage du fluor osseux chez l'insuffisant renal : correlation avec l'histomorphometrie a propos de 44 patients du centre hospitalier de sfax (tunisie)." Amiens, 1992. http://www.theses.fr/1992AMIEM027.
Full textMasmoudi, Salma. "Dynamique du phytoplancton et caractérisation physiologique et moléculaire de trois espèces autotrophes de la saline de Sfax(Tunisie), un milieu extrémophile." Thesis, Le Mans, 2014. http://www.theses.fr/2014LEMA1015/document.
Full textThe saltern of Sfax is a thalasso haline environment (salt medium supplied with sea water) plankton-rich despite the high salinity and the high light intensity. This richness is due to its physico-chemical characteristics. The STATICO analysis shows that nitrogen and phosphorus can influence the distribution of the phytoplankton in addition to salinity that dominates in this peculiar medium. Basing on this parameter, we could group the species according to their salt tolerance. To better understand the behavior of the phytoplankton, three autotrophic species Dunaliella salina (Chlorophyceae) Cylindrotheca closterium (diatom) and Phormidiumversicolor (Cyanophycea) were isolated, identified and grown in batch in artificialseawater in the presence of three NaCI concentrations and under three irradiations. Growth, photosynthesis and antioxidant enzyme activity were measured. The photosynthetic apparatus of the Chlorophyceae and the cyanobacteriumwas less affected than the diatom’s one that was irreversibly altered under high illumination and the highest salinity ; the antioxidant activity was only detected in cells grown under the highest irradiance and the synthesis of carotenoid pigments, that are non-enzymatic antioxidants,was strongly activated especially in D.salina. Salinity and light inter-reacted on the physiology of the three species that possess resistance mechanisms to stresses more or less effective, resulting in different resistance to environmental stresses depending on species
KANOUN, BEJAR FIRDAOUS. "Etude epidemiologique des teignes du cuir chevelu a la consultation de dermatologie du chu de sfax (tunisie) : a propos de 310 cas." Toulouse 3, 1989. http://www.theses.fr/1989TOU31183.
Full textKallel, Boukhris Afef. "Les systèmes d'appui à la création d'entreprises en Tunisie : quels enjeux et quels rôles pour les jeunes diplômés porteurs de projets? : cas de la région de Sfax." Thesis, Dijon, 2015. http://www.theses.fr/2015DIJOE001/document.
Full textIn this dissertation we identify the determinants of the longevity and the probability of survival of small businesses created by young graduates benefiting from bank loans at enhanced rates. The focus is on the policy impact of public support for the creation of companies. The data are based on a survey conducted in 2013 under the tutelage of the University of Sfax (Tunisia) of a cohort of 160 companies five years after they were first formed. The response rate was 81.25%. After discussing the issue of the survival of newly-established companies and the factors that promote their survival, we use duration models specifically the Cox model (1972). This analysis allows us to shed light on a business is more likely to survive if the entrepreneur is a male who started his business within a year of graduating and comes from an entrepreneurial background, stimulating his entrepreneurial spirit. The improved longevity of small companies ensues from the similarity between the entrepreneur’s previous occupation and the activity of his own company, and from the initial start-up capital if it exceeds 30.000 DT. Aid granted by the State for new promoters (investment subsidy, grant, and reduction in social security contributions) does not help reduce the risk of entrepreneurial failure with the exception of State aid to support a portion of employees’ wages. On the other hand, a company benefiting from entrepreneurial training before creation and from support post-creation sees its probability of survival rise
Gargouri, Imed. "ÉVALUATION DE L'IMPACT SANITAIRE DES EXPOSITIONS PROFESSIONNELLES AUX SOLVANTS ORGANIQUES DANS L'INDUSTRIE DES COLLES ET DES CHAUSSURES DE LA RÉGION DE SFAX TUNISIE." Phd thesis, Université du Droit et de la Santé - Lille II, 2009. http://tel.archives-ouvertes.fr/tel-00357479.
Full textUtilisé dans de nombreux domaines, les solvants organiques entrent dans la composition de divers produits tels que les peintures, les encres, les pesticides, les dégraissants les diluants et les colles. Parmi ces domaines la fabrication de chaussures représente un grand consommateur de colles, de diluants et de décapants à bases de solvants organiques. Par conséquent, les employés de ce secteur industriel sont susceptibles de présenter des pathologies suite à cette exposition à ces solvants organiques volatiles.
Dans le cadre de l'évaluation du risque nous nous sommes intéressés à l'impact sanitaire des expositions professionnelles aux solvants organiques dans l'industrie de fabrication des colles et leurs applications dans l'industrie de chaussures dans la région de Sfax en Tunisie. En effet, elles sont parmi les industries les plus développées dans notre région.
Les deux objectifs principaux de cette étude ont été :
* de hiérarchiser le risque chimique des différentes expositions professionnelles aux solvants et/ou aux colles en tenant compte à la fois du secteur d'activité et du poste de travail, et d'en préciser les niveaux atmosphériques ;
* d'évaluer les impacts sanitaires des expositions aux principaux solvants en milieu professionnel par la mesures des indicateurs d'expositions biologiques couplés à des indicateurs de neurotoxicité par des mesures posturales.
Les objectifs secondaires sont :
* d'établir la liste des salariés exposés aux solvants des colles, en vue du suivi professionnel ;
* et d'appliquer les dosages bio-métrologiques dans la surveillance médicale professionnelle.
Gargouri, Imed. "Evaluation de l'impact sanitaire des expositions professionnelles aux solvants organiques dans l'industrie des colles et des chaussures de la région de Sfax-Tunisie." Lille 2, 2009. http://www.theses.fr/2009LIL2S003.
Full textBen, Hamida Rania. "L'énergie entre les opportunités de développement et les risques de la dégradation de la qualité de l'environnement : cas du gouvernorat de Sfax (Tunisie)." Thesis, Clermont-Ferrand 1, 2014. http://www.theses.fr/2014CLF10455/document.
Full textThis thesis has a dual purpose; it focused on the one hand on the role of energy in the industrial and economic development of the country and on the other hand on the impact of its use on the environment and health status of individuals. We developed and operated a database on the Sfax region, which has been used for empirical analysis suited to each area of research. The path followed to argue this thesis has led us to establish three chapters.At the first chapter, we particularly appreciated the role of energy in economic development of nations. Following our empirical analysis, two main results are announced, first, the presence of a long-term effect between energy consumption and economic development in the region of Sfax implying its economic dependence on energy. Then the existence of unidirectional causal relationship starting from energy consumption to economic growth. In the second chapter, we are interested in studying the impact of energy consumption on the deterioration of the environment quality. Two points are emphasized, first, a correlation is found between energy consumption and the following pollutants: PM10, SO2 and NO2. Secondly, the presence of tropospheric ozone (O3) in the air is not conditional on the energy consumption but rather to photochemical reactions involving NO2 and oxygen under the influence of solar ultraviolet radiation. Finally, weather factors, especially temperature (T) and relative humidity (RH) affect the dispersion of pollutants and their accumulation around their emission sources. The last chapter is focused on the analysis of the health impact of air pollution. Adapted to the region of Sfax, three main findings are detected. First, cardiovascular diseases are affected by S02 emissions and while respiratory diseases are influenced by emissions of SO2 and O3. Then, a correlation is justified between O3 NO2, confirming the chemical reaction of ozone scavenging already indicated. Finally, we concluded that the wind speed (VV) affects the distribution of pollutants mainly NO2, SO2 and PM10. Temperature (T) in turn affects hospital admissions for cardiovascular reasons
Hentati, Dorra. "Isolement et caractérisation des bactéries marines hydrocarbonoclastes, production des biosurfactants et étude de la biodiversité microbienne au sein de trois ports de Sfax, Tunisie." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTG064/document.
Full textPollution of coastal marine ecosystems by hydrocarbons, in particular polycyclic aromatic hydrocarbons (PAHs), is a major environmental problem. The South coast of Sfax (Tunisia) is an example of a polluted ecosystem subject to both urbanization and industrialization including the outfall of untreated domestic sewage and wastewaters, fishery activities, as well as ship traffic and boat pollution. The physico-chemical characterization of the seawater taken from three harbours (pleasure, commercial and fishing) of the city of Sfax, showed a heavy contamination by organic and inorganic micropollutants. These are excellent tracers of urban and industrial pollution, and they are among the most toxic compounds due to their low biodegradation.The molecular fingerprinting technique (PCR-SSCP) showed the dominance of the Bacteria domain followed by Eucarya and Archaea within the studied marine samples. Statistical analysis using the R software, showed that no correlation was identified between the bacterial community identified by PCR-SSCP and the studied physico-chemical parameters.In another part, four marine, aerobic and hydrocarbonoclastic strains: Bacillus stratosphericus FLU5, Pseudomonas aeruginosa NAPH6, Bacillus licheniformis PYR2, isolated after enrichments on fluoranthene, naphthalene and pyrene, respectively, and in the presence of 30 g/l NaCl. Strain Staphylococcus sp. CO100 was isolated after enrichment on crude oil, in the presence of 100 g/l. Chromatographic analysis (GC-MS or GC-FID), showed the interesting biodegradative capacities of these recalcitrant compounds by the isolated bacteria.Besides, these strains showed their capacity to produce efficient surface active agents BS-FLU5, BS-NAPH6, BS-PYR2 and BS-CO100, on several substrates and in particular the residual frying oil, which is a cheap and renewable carbon source alternative, thus minimizing the high cost of producing surfactants. The MALDI-TOF/MS analysis of the purified BS-FLU5, BS-PYR2 and BS-CO100 biosurfactants revealed that they are belonging to lipopeptide family. FTIR analysis showed the glycolipid nature, more precisely the rhamnolipid type, of biosurfactant BS-NAPH6.These four biosurfactants are characterized by interesting tensioactive properties (low CMC, important surface tension reduction...). Furthermore, these surface active agents showed interest stability against a broad range of pH, temperature and salinity. The application of these biosurfactants, in oil recovery, from hydrocarbons-contaminated soil, showed that they were more effective on the hydrocarbon-remobilization than some tested synthetic surfactants. The biosurfactants BS-FLU5, BS-PYR2 and BS-CO100, were found to have notable anti-adhesif and anti-biofilm activities, being able to prevent and eliminate the biofilm formation by pathogenic microorganisms. Moreover, the four tested biosurfactants showed an interesting healing activity, on the wound site in a rat model. They increased significantly the percentage of wound closure when compared to the untreated and CICAFLORA® (a reference pharmaceutical product) treated groups, using two different concentrations (5 and 10 mg/l). Interestingly, the evaluation of the cytotoxicity of the studied biosurfactants, showed that they have no toxic effects on human HEK-239 cells at concentrations up to 1000 μg/ml for BS-FLU5 and BS-CO100 and up to 200 μg/ml for BS-NAPH6 and BS-PYR2. An attempt to produce biosurfactant produce by strain FLU5 on a pilot-scale (fermentors of 20 and 100 liter, as total volume), using a cost-effective medium, was also performed. Preliminary results showed an increase in the quantities of biosurfactantsBS-FLU5 produced on a pilot-scale compared to the lab-scale (Erlenmeyer of 1 liter).These results highlight the interest for potential use of strains FLU5, NAPH6, PYR2 and CO100, as well as their biosurfactants, in a wide variety of industrial, environmental and biotechnological applications
Ladhar, Chiraz. "Etude de la dynamique,de la composition biochimique et de la variabilité génétique des copépodes et des Artemia d'un écosystème extrême : la saline de Sfax (Tunisie)." Thesis, Le Mans, 2014. http://www.theses.fr/2014LEMA1023/document.
Full textZooplankton community of solar saltern of Sfax. A dozen of species were identified in four ponds of increasing salinity. Copepods were the most abundant group in A5, A16 and C41. M2 is monozoic with an exclusive presence of Artemia salina. Salinity have a crucial role in species distribution, whereas, other factors such as N:P ratio have smaller influence. Fatty acids composition of copepods and Artemia depends on physico-chemical and biological parameters. Owing to their Highly unsaturated fatty acids (HUFAs) composition, copepods and Artemia of the saltern of Sfax can be used as food source for cultured fishes. Copepods phylogeny is controversial because their genetic structure is not clearly identifiable. The existence of cryptic species within Paracartia grani is assumed but should be confirmed. Abiotic factors are not involved in processes of genetic divergence. For Artemia salina, the high salinity, is a factor of population segregation, the adaptation of Artemia in such condition leads to distinct, genetically, population. A genetic divide was identified, it highlights a separation between population living in high salinity and those in the sea
Belaid, Nebil. "Evaluation des impacts de l'irrigation par les eaux usées traitées sur les plantes et les sols du périmètre irrigué d'El Hajeb-Sfax : salinisation, accumulation et phytoabsorption des éléments métalliques." Limoges, 2010. https://aurore.unilim.fr/theses/nxfile/default/a8a097b5-d757-4af1-a2bb-253eaf48bf21/blobholder:0/2010LIMO4003.pdf.
Full textIn the framework of Tunisian strategy for optimizing the treated wastewater reuse (TW), several irrigated agricultural areas have been created. The risk of TW crop irrigation depends on the one hand, to the TW quality and on the other hand, to the soil type and agricultural practices (type and crop rotation). In the El Hajeb area, TW deriving from the Sfax wastewater treatment plant is reused since 1989. The aim of this work is to evaluate the impact of the TW irrigation on soil and plants. Two soil types were analyzed for they cover the main study area: isohumic calcisol and calcic fluvisol irrigated respectively over 15 and 4 years. Several parameters have been characterized in the studied soils: physicochemical proprieties, geochemistry, major and metallic elements (ME). For both soil sites, two plants types have been sampled; forages plants (sorghum and alfalfa) and perennial plants (olives tree). Contents in major and metallic elements were also analyzed in the Plants samples. TW irrigation has affected both studied soils in different manners. However, in both cases the salinity has been increased. At the calcisol (OTD site), the negative impact of the salinity increase is buffered by the good permeability. For the clayey textured fluvisol (BZ site) irrigated for only 4 years, the salinity increase is more pronounced and the ESP reached the critical level of 15%. If this salinity increase has not affected crop yields by present, it has already inhibited SOM decomposition. For both soil types, the metallic elements (ME) mobility, both in terms of migration with depth or of transfer to the plants, is relatively low and limited to surface soil level. It remains difficult to discern the anthropogenic inputs from natural background of metallic elements. Limiting the study to the surface soil layer only (0-5 cm), it appears that the lateral variability of ME was induced by the irrigation system orientation (surface furrows). Whereas, the ME bioavailability is governed by the SOM level and the distance from the inlet of TW channel. Finally, determination of the rate of ME accumulation in tissues of two forages (alfalfa and sorghum), has shown that the metal uptake level depends mainly on the plant type. While, accumulations of metallic elements in leaves of olive trees are not significant to a statistical point of view
Trigui, Ahmed. "Relations entre le climat, le sol et la production de la variété d'Olivier Chemlali, Olea europaea L., dans la région de Sfax, Tunisie contribution à l'étude bioclimatique de l'espèce par l'analyse des propriétés biophysiques, structurales et spectrales des feuilles et des arbres /." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37610373m.
Full textTrigui, Ahmed. "Relations entre le climat, le sol et la production de la variété d'olivier Chemlali (Olea europea L. ) dans la région de Sfax (Tunisie) : contribution à l'étude bioclimatique de l'espèce par l'analyse des propriétés biophysiques, structurales et spectrales des feuilles et des arbres." Montpellier 2, 1987. http://www.theses.fr/1987MON20267.
Full textSun, Fang. "ECONOMIC CONSEQUENCES OF SFAS 158." Diss., Temple University Libraries, 2011. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/114458.
Full textPh.D.
In this dissertation, I investigate the economic consequences of Statement of Financial Accounting Standards No. 158 (SFAS 158). SFAS 158 requires firms to move pension funding status from the footnotes to the balance sheet. Moving pension funding status from a footnote to the balance sheet improves the transparency and understandability of pension accounting, however it at the same time increases the pension liability recognized and decreases the shareholder's equity reported for firms with underfunded pension plans. I investigate whether firms take actions to mitigate the impact of SFAS 158. I also examine whether the market perceptions of the risk and cost of capital differ because of SFAS 158. I first find that while firms reduce the non-pension debt to equity ratio to minimize the cost of SFAS 158, they did not use discretionary accruals to offset the impact of SFAS 158. One interpretation of these findings is that firms' potential responses to the rule depend on the costs and benefits associated with that discretionary behavior. While accrual manipulations do not affect either real operations or cash flows, aggressive accrual manipulations can increase the probability of a qualified opinion from auditors, and financial penalties from regulators (SEC litigation). In contrast, real activity manipulation is more opaque than accounting earnings management, making it more difficult to detect by shareholders, SEC regulators, or auditors. I then find that the market perceived risk proxied by total equity risk increased after SFAS 158. However, I fail to find that the increased total equity risk is generally priced by the equity capital markets. Further analysis indicates that bond spread yield decreases after SFAS 158 for firms with underfunded pension plans, suggesting different behavior of debt investors and equity investors. This finding might be explained by the rich information environment specific to the debt market. Compared with the equity market, the debt market includes mainly sophisticated investors. Sophisticated investors have access to more firm-specific information than other investors. Given their access to potentially more informative data, the debt market response to SFAS 158 is different from the equity market. This dissertation contributes to the debate regarding the effectiveness of the pension accounting reforms incorporated in SFAS 158, and is useful to legislators, regulators, and researchers in assessing the anticipated costs and benefits of SFAS 158. In addition, this study lends support to the stream of research which documents that managers take actions to achieve certain financial reporting goals in response to new accounting rules. This study also provides insight into how firms take real actions to minimize the cost of having an under-funded defined benefit pension plan. Understanding these relationships have implications for interpreting pension numbers reported in the financial statements and designing pension accounting rules that prevent or minimize the possibility that managers take advantage of the complexity and subjectivity associated with pension accounting to influence reported earnings. Finally, this study contributes to the existing literature by highlighting the importance and necessity of considering investor sophistication in studies on recognition vs. disclosure.
Temple University--Theses
Guragai, Binod. "Firm Performance and Analyst Forecast Accuracy Following Discontinued Operations: Evidence from the Pre-SFAS 144 and SFAS 144 Eras." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc984135/.
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