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A Case Report of Osteosarcoma of the Skull

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Open Journal of Modern Neurosurgery 2014年第3期4卷 105-109页

作者： Bouali Sofiene Bouhoula Asma Boubaker Adnene ben said imed Kallel Jalel Aouij Lassaad Jemel Hafedh Department of Neurosurgery Faculty of Medicine University of Tunis El Manar National Institute of Neurology Mongi Ben Hmida Tunis Tunisia

Background: Osteosarcoma is the most common primary malignancy and aggressive neoplasm of bone composed of spindle cells producing osteoid. The incidence of primary osteogenic sarcomas of the skull is about 1% to 2% of all skull tumors. Methods: We present an extraordinary case of osteosarcoma arising in the postero-temporal region of the skull. The clinical features, diagnosis and management are discussed. Results: A 34-year-old woman was operated in our department for mass, fixed to bone in the left postero-temporal area. Histopathology confirmed the diagnosis of osteogenic sarcoma. Conclusion: We review the literature of reported cases of primary osteogenic sarcomas of the skull to discuss the common clinical presentation, evaluation methods, and recommended treatment plans.

关键词： Osteosarcoma Primary Tumor Skull

Spinal intradural mature teratoma in an elderly patient

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Journal of Cancer Metastasis and Treatment 2015年第1期1卷 106-110页

作者： Atef ben Nsir Karim ben Hammouda imed ben said Alia Zhani Kassar Nidhameddine Kchir Hafedh Jemel Department of Neurological Surgery Fattouma Bourguiba University HospitalUniversity of Medicine of MonastirMonastir 5000Tunisia Department of Neurological Surgery Tunisian National Institute of NeurologyUniversity of Medicine of Tunis El ManarTunis 1007Tunisia Department of Pathology La Rabta University HospitalUniversity of Medicine Tunis El ManarTunis 1007Tunisia.

Spinal intradural mature teratomas are rarely encountered in *** this report,one of the oldest patients ever reported to harbor an intradural mature teratoma of the conus medullaris is presented,and the relevant literature concerning the teratoma’s origin,clinical presentation,radiological features,and treatment modalities is reviewed.A previously healthy 70-year-old woman presented with a 2-month history of left *** neurological examination was normal and the magnetic resonance imaging of the thoracolumbar spine showed an intradural,partially cystic mass extending from T12 to L3 *** patient underwent a T11-L4 *** opening the dura,a yellowish vascular tumor attached to the conus medullaris came into *** dissection allowed for subtotal tumor *** a thin part of the tumor wall,tightly attached to the conus medullaris,was *** tumor was diagnosed as mature teratoma by histological study,and no adjunctive therapy was *** pain experienced by the patient disappeared *** condition remained unchanged with no radiological recurrence through the most recent follow-up examination,3 years after *** present study outlines that mature teratoma can arise from the conus medullaris,even in older adult *** preservation is of utmost importance,and long-term follow-up is mandatory to spot recurrences early.

关键词： Conus medullaris tumor mature teratoma surgery

Effects Optimization of Bio-Polishing Industrial Process Parameters

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Journal of Textile Science and Technology 2023年第1期9卷 30-51页

作者： imed ben Marzoug Rim Cheriaa Textile Engineering Laboratory University of Monastir Monastir Tunisia Higher Technological Studies Institute Ksar-Hellal Tunisia

The purpose of this study is to select an appropriate commercial neutral cellulase enzyme for denim garments bio-polishing to achieve specific industrial goals. A full factorial experimental design was used to evaluate the effect of factors considered in the optimization of the bio-polishing process (fabric ID: x1, treatment time: x2, treatment temperature: x3, enzyme concentration: x4, storage time: x5, inactivation step: x6 and enzyme type: x7). Experiments were conducted using laboratory washing machine. Subjective evaluation was performed at a pilot and at an industrial scale. Tear, tensile strength and subjective evaluation concerning hand feel, fabric color, indigo dye pocket back staining and fuzziness extent were evaluated. Results showed that x6 and x7 had significant effects on the fabric tear and tensile strength loss. In the optimization, the great dependence between observed and predicted tear strength and tensile strength loss, the correlation coefficient of the models (R2 > 0.85) and the important value of F-ratio proved the validity of the models. Results showed that denim leg panels treated with the enzyme Lava-Cell NSZ presented a minimum loss of tear and tensile strength. A low-temperature and time enzymatic bio-polishing process was developed at industrial scale.

关键词： Bio-Polishing Cellulase Tensile Strength Optimization Fabric Hand Feel

Vogt-Koyanagi-Harada syndrome and Crohn’s disease:an exceptional association

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Gastroenterology Report 2018年第1期6卷 65-67,I0003页

作者： Ahlem Souguir Aya Hammami Wafa Dahmeni Hanene Jaziri imed ben Mansour Ahlem Zayene Aida ben Slama Mehdi Ksiaa Ahlem Brahem Salem Ajmi Ali Jmaa Department of Gastroenterology University Hospital SahloulSousseTunisia

Vogt-Koyanagi-Harada disease(VKH)is a rare,multisystem disease of melanocyte-containing *** is characterized by diffuse,granulomatous inflammation involving various *** has been reported to occur in association with other autoimmune *** report the case of a female patient who was diagnosed with VKH at the age of 4 years and who was treated with corticosteroids until the age of *** years later,Crohn’s disease was diagnosed,with a severe *** cases of VKH associated with ulcerative colitis have previously been reported anecdotally but,to our knowledge,this is the first case occurring in association to Crohn’s disease.

关键词： Vogt-Koyanagi-Harada disease granulomatous inflammation Crohn’s disease

Managing Salinity in Tunisian Oases

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Journal of Life Sciences 2014年第9期8卷 775-782页

作者： Mohamed Hachicha imed ben Aissa Laboratory of Valorization of non Conventional Water National Institute of Rural Engineering Waters and Forest Ariana 2080 17 Rue Hedi Karray Tunisia Regional Research Centre of Horticulture and Biological Agriculture Chott Meriem BP 57-4042 Sousse Tunisia

The Tunisian oases face serious problems of waterlogging and salinization caused by mismanagement of water and soil resources and the reduced discharge of drainage water. The oases space is based on a fragile balance between water, soil and man, which is now changed by modem irrigation and drainage systems. The oases pump most of their water from deep aquifers and only to a small degree from shallow aquifers. The quality of the irrigation water and the presence of a shallow saline water table are the main causes of salinization of the oases. Concerning the salt-affected landscapes and hydro-saline dynamic, the authors distinguish an equilibrium dynamic of salts to the parcel which depends on water management, and an equilibrium dynamic at the level of the basin watershed which is powered by drilling and ending in hypersaline depressions. For the management of salinization and waterlogging, a combination of agricultural management techniques are used, the first being modem methods of irrigation and drainage. Other, less used methods are sandy amendment, the reuse of drainage waters, geothermal waters and of treated wastewater.

关键词： Water irrigation drainage salinity oases Tunisia.

Assessment of the Energy Conversion on the Thermal Balance and Atmospheric Emissions in Ceramic Tile Product Industry in Tunisia: A Case Study

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Atmospheric and Climate Sciences 2020年第4期10卷 421-442页

作者： imed ben Salah Moufida ben M’barek Jemaï Aycer ben Saad Safa Mezza Department of Geology University of Sciences of Bizerte University of Carthage Tunis Tunisia

This work aims to assess the effect of energy conversion (Thermal oil, Natural gas and cogeneration system) on atmospheric emission and energy consumption in ceramic tile product sector in Tunisia. Two tile manufactures were selected. The first plant has two production lines: The first line (FF1) operates with thermal oil with a lower calorific value (LHV) of 9811 cal/g and the second line (FG1) operating with natural gas has a lower calorific value (HHV) of 10,520 cal/g, ensuring a daily output of 300 tons each one. The second manufacture (SC2) operates with natural gas with the same LHV value. The thermal oil energy balance showed a specific consumption of 0.0481 toe/ton tile product for the FF1 manufacture line, 0.0198 toe/ton of tile product for the FG1 manufacture line and 0.0143 toe/ton of tile product for the SC2 manufactory. The electrical energy consumption was 0.0121 toe/ton of tile product for the FF1 line, 0.0108 toe/ton of tile product for the FG1 line and a production of energy (exergy) of 0.014 toe/ton for the SC2 production line. The specific consumption was split into 40% for dryer and 60% for tunnel kilns. The conversion allow to record a dryer reduction rate of 80% for nitrogen oxides (NOx), 56% for sulfur oxides (SOx), 56% for fluorinated compounds, 52% for chlorinated compounds and 52% for volatile organic compound. Whereas, the kiln reduction rate was 36% for nitrogen oxides, 51% for sulfur oxides, 36% for chlorinated compounds and 55% for fluorinated and 50% for volatile organic compounds (VCOs). Compared to natural gas line, the use of cogeneration system in kiln process shows a decrease of 67% for NOx emissions, 80% for SOx emissions, 89% for fluorinated compounds, 58% for chlorinated emissions and 64% for volatiles organic compounds. Compared to thermal oil, the use of cogeneration system reduces the thermal energy consumption by 70% and allowed to save 30% of electric energy by generate 20% of needed electric energy. The specific atmospher

关键词： Ceramic Energy Conversion Cogeneration Energy Balance Atmospheric Emissions

Geotechnical Study of the Aptian Limestone of the Kef Region,Northwestern Tunisia:Evaluation for Industrial Use

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Open Journal of Geology 2018年第12期8卷 1084-1101页

作者： imed ben Salah Moufida ben M’Barek Jemai Safa Mezza Mabrouk Boughdiri Department of Geology Sciences University of BizerteUniversity of CarthageBizerteTunisia

This study aims to the initial characterization of Aptian sedimentary limestones in the Kef region located in the North-West of Tunisia in order to use in industrial fields. The limestone samples were collected from three outcrops respectively named Jebel Jerissa, Jebel Hmeima and Jebel Harraba. A geochemical characterization highlights a variation of the weight percentage (wt%) as follows: CaO (53 - 55), MgO (0.04 - 0.28), Al2O3 (0.07 - 0.51), Fe2O3 (0.41 - 2.87), and a loss on ignition (41.62 - 43.35). The other oxides (K2O, SO3, Na2O) are in trace amounts. Mineralogical analysis revealed that limestones contain more than 95% of calcite and the clay impurities are the minor phases detected. Petrographic study showed that these limestones are packestone-wakestone type. The hardness of Aptian limestones crosses the upper limit of the hard domain. Geotechnical tests reveal a Dry Micro Deval (MDS) coefficient varying from 23% to 33%, a Wet Micro Deval (MDH) coefficient with values oscillating around 26% to 36%, a Los Angeles coefficient (LA) about 25% against a value of the compressive strength ranging from 593 Kg/cm2 to 866 Kg/cm2. The gravimetric tests highlighted a flexural strength value from 106 Kg/cm2 at 208 Kg/cm2, while the ultrasonic coefficient oscillates from 4876 m/s to 5233 m/s, indicating the low porosity of these limestone (0.5% to 1%). The density recorded an average value of 2.50 g/cm3. The various properties studied have proved that the limestone studied can be used in various industrial fields such steel industry, aggregate, cement industry and marble.

关键词： Aptian Limestone Geotechnical Properties Geochemical Properties Industrial Use

Impact of Dialysis Modality on Kidney Transplantation Outcomes

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Journal of Biomedical Science and Engineering 2015年第2期8卷 67-72页

作者： imed Helal Imen Gorsane Fethi ben Hamida Adel Kheder Department of Medicine A (M8) Charles Nicolle Hospital Tunis Tunisia Laboratory of Kidney Pathology (LR00SP01) Charles Nicolle Hospital Tunis Tunisia Faculty of Medicine University of Tunis El Manar Tunis Tunisia

Survival benefits of renal transplantation over dialysis therapy are well established for patients with end-stage renal disease (ESRD). Transition from one treatment modality to another is common. Understanding the differences in outcomes with the various renal replacement therapies will help nephrologists to provide best advice for dialysis patients. The influence of pretransplant dialysis modality on post-transplant outcomes is not clear. An overview of the various issues related to dialysis modality on kidney transplantation outcomes is discussed in this topic review. These include allograft and recipient survival, the impact of dialysis vintage and choice of dialysis modality on transplant outcomes.

关键词： Peritoneal Dialysis Hemodialysis Kidney Transplantation

Technological Characterization and Industrial Application of Tunisian Clays from Makthar Area (Central Tunisia) in the Ceramic Industry

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Open Journal of Geology 2016年第7期6卷 626-639页

作者： imed ben Salah Moufida ben M’Barek Jemai Ali Sdiri Najet Shimi Slim Mabrouk Boughdiri Department of Geology University of Sciences of Bizerte Bizerte Tunisia National Engineering School of Sfax Sfax Tunisia Department of Geology University of Sciences of Tunis Tunis Tunisia

This study focused on the geochemical, mineralogical and technological characterization of clays in Makthar area (Central of Tunisia) of Cretaceous-Paleogene. Its aims are to identify and promote use in the field of ceramics industry. The result of the mineralogical analysis of clays showed a dominance of illite with a percentage higher than 65%, of kaolinite and smectite with percentages of 15%. Geochemical analysis of the major elements of clay showed a SiO2 content exceeding 29% and a percentage of Al2O3 higher than 7.5%. The Fe2O3 percentage was ranging from 3% to 8%. The percentage of CaO was between 22.5% and 28% while that of K2O is 4%. The percentages of SO4, MgO and NaO2 were in very small fractions. Granulometric and microgranulometric analysis showed that the clay fraction (2/g to 178 m2/g reflecting illite dominance. Drying behavior indicated that clay mixture had a drying shrinkage less than 7%, while the firing shrinkage didn’t exceed 2% giving the possibility of clay using in the ceramics field.

关键词： Clay Mineral Mineralogy Chemical and Physical Properties Ceramic Industry