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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

Voluminous Cystic Trigeminal Schwannoma: Case Report and Literature Review

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Open Journal of Modern Neurosurgery 2017年第4期7卷 142-152页

作者： Médard Kakouc Alban slim Mbende Romuald Kouitcheu Fulbert Kouakou Paulette Yapo Isidore Diomandé Neurosurgery Unit Yopougon Teaching Hospital Abidjan Ivory Coast Neuroradiology Unit Treichville Teaching Hospital Abidjan Ivory Coast Pathology Laboratory Cocody Teaching Hospital Abidjan Ivory Coast

Voluminous trigeminal schwannomas are rare, predominantly benign growth encapsulated tumors composed of Schwann cells with controversial surgical treatment. They account for 20% to 40% of all trigeminal schwannomas and share the same imaging findings of neurinomas elsewhere. Surgery remains the treatment of choice for most lesions as long as complete excision is feasible. A 35-year-old house wife complained of a 3-month history of progressive right visual field impairment associated with headaches. Neurological examination revealed a complete cavernous sinus syndrome. CT scanning showed a voluminous cystic mass of the right parasellar compartment extending to the optic nerve and the orbit. A concomitant MRI scan revealed more exquisite anatomical details of the lesion. The patient benefitted from a subsequent CT-angiography (not included) which excluded any vascular abnormalities associated with the tumor. Surgical excision of the tumor was warranted and the patient underwent surgery a few days after admission. A pterional extradural-intradural approach combined with incision of the lateral wall of the parasellar compartment via a standard frontotemporal craniotomy was performed and pathological examination was in favor of a cystic trigeminal schwannoma. Post-operative MRI showed a complete excision of the tumor. A 2-year follow-up yielded persistent right monocular blindness. Given this typical appearance of this lesion indicative of both cisternal and parasellar compartment extension, as well as the level of controversy surrounding surgical treatment of these particular tumors;we sought to report this rare case of a voluminous cystic trigeminal schwannoma and share our humble surgical experience of dealing with these lesions. The patient was informed that non-identifying information from the case would be submitted for publication, and she provided consent.

关键词： Schwannoma Cystic Cavernous Sinus Syndrome Trigeminal Nerve

Free-space optical channel characterization in a coastal environment

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Journal of Communications and Information Networks 2017年第4期2卷 100-106页

作者： Wael G.Alheadary Ki-Hong Park Boon S.Ooi Mohamed-slim Alouini Computer Electricaland Mathematical Sciences and Engineering(CEMSE)DivisionKing Abdullah University of Science and Technology(KAUST)Thuwal23955-6900Saudi Arabia

Recently,FSO(Free-Space Optical Communication)has received a lot of attention thanks to its high data-rate transmission via unbounded unlicensed ***,some weather conditions lead to significant degradation of the FSO link *** on this context and in order to have a better understanding of the capabilities of FSO communication in a coastal environment,the effects of temperature and humidity on an FSO system are investigated in this *** experiment is conducted using an open source FSO system that achieves a transmission rate of 1 Gbit/s at a distance of 70 *** new mathematical models are proposed to represent the effects of temperature and humidity on our developed FSO system operating at a wavelength of 1550 *** first model links the FSO attenuation coefficient to the air temperature in coastal regions,while the second model links the FSO attenuation coefficient to the humidity and the dew-point *** key finding of this study is that FSO links can achieve maximum availability in a coastal city with normal variations in temperature and humidity.

关键词： FSO optical systems relative humidity temperature channel characterization attenuation coefficient

Tunneling via surface dislocation in W/β-Ga_(2)O_(3) Schottky barrier diodes

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Journal of Semiconductors 2023年第7期44卷 23-27页

作者： Madani Labed Ji Young Min Amina Ben slim Nouredine Sengouga Chowdam Venkata Prasad Sinsu Kyoung You Seung Rim Department of Intelligent Mechatronics Engineering Sejong UniversitySeoul 05006Republic of Korea Laboratory of Semiconducting and Metallic Materials(LMSM) University of BiskraBiskra 07000Algeria Research and Development Powercubesemi Inc.Sujeong-guSeongnam-siGyeonggi-do 13449Republic of Korea Department of Semiconductor Systems Engineering Sejong UniversitySeoul 05006Republic of Korea

In this work,W/β-Ga_(2)O_(3)Schottky barrier diodes,prepared using a confined magnetic field-based sputtering method,were analyzed at different operation ***,Schottky barrier height increased with increasing temperature from 100 to 300 K and reached 1.03 eV at room *** ideality factor decreased with increasing temperature and it was higher than 2 at 100 *** apparent high value was related to the tunneling ***,the series and on-resistances decreased with increasing operation ***,the interfacial dislocation was extracted from the tunneling current.A high dislocation density was found,which indicates the domination of tunneling through dislocation in the transport *** findings are evidently helpful in designing better performance devices.

关键词： β-Ga_(2)O_(3) SBD SBD paramatters tungsten low temperature tunneling via dislocation

Effect of chemotherapy on autoimmune hepatitis in thymoma:a case report and literature review

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Cancer Biology & Medicine 2013年第3期10卷 169-173页

作者： Nesrine Mejri Imen Chabchoub Ines Gargouri Imtinen Belaid Faten Ezairi Sihem Hmissa slim Ben Ahmed Medical Oncology Department Farhat Hached Hospital Pathology Department Farhat Hached Hospital

Autoimmune hepatitis(AIH) has rarely been described as an autoimmune paraneoplastic syndrome of *** case is the seventh case of AIH revealed by cholestasis few years after the diagnosis of thymoma and the first case treated with chemotherapy *** report in this paper a new approach to this rare severe condition.A 29 year-old man presented with chest pain and dyspnea with a history of thymoma surgically removed 4 years *** scan showed the recurrence of an anterior mediastinal *** showed elevated liver enzymes and profound *** sign of viral or toxic hepatitis or bile duct abnormalities were *** antibodies,except for the anti-nuclear antibody,were *** biopsy showed active chronic *** patient was diagnosed with recurrent thymoma with AIH and underwent 6 cycles of chemotherapy.A complete response on thymoma and cholestasis was obtained after 10 months of *** and immunosuppressors are the standard treatment for *** effect of chemotherapy as a specific treatment of this paraneoplastic syndrome needs to be considered.

关键词： Hepatitis autoimmune thymoma chemotherapy

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神奇之地,魔力之家

缤纷 2011年第7期 56-63页

作者： Sara slim Michael Wee 周静

拿破仑有句名言耐心、坚持和努力注定成功"。如果用这句话来佐证唐娜·玛丽凯利及其年轻家庭的故事的话,一点也不夸张。经过漫长的如钢铁般炼成的12年时间,他们终于完成了梦想——设计和建造澳大利亚南威尔士南部海岸白沙滩上的家园。... 详细信息

拿破仑有句名言耐心、坚持和努力注定成功"。如果用这句话来佐证唐娜·玛丽凯利及其年轻家庭的故事的话,一点也不夸张。经过漫长的如钢铁般炼成的12年时间,他们终于完成了梦想——设计和建造澳大利亚南威尔士南部海岸白沙滩上的家园。经过整整3年64道程序得到的地方议会批准,再经过长期彻夜的关于当地村民对设计和建筑标准限制的谈判,他们终于如愿以偿地得以开发他们的小天堂——一个远离村庄,位于陡峭的海滨的地块。

关键词：地下车库海滩澳大利亚地块坡屋顶建筑师开放式夏季玻璃设计原则

Modelling of Guided Ultrasonic Wave in Aircraft Wiring

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Modelling of Guided Ultrasonic Wave in Aircraft Wiring

About a rare cause of intestinal perforation

17th World Conference on Non-Destructive Testing

作者： Yousef GHARAIBEH slim SOUA Septimonette CHAN Tat-Hean GAN Graham EDWARDS NDT Technology Group TWI LtdGranta ParkGreat AbingtonCambridge CB21 6ALUK School of Engineering and Design Brunel University UxbridgeMiddlesexUB8 3PHUK.

＜正＞Degradation and failure of aircraft wiring insulation results in potential flight safety critical system failure or in smoke and fire due to ***,there is a need to detect any defect within the physical structure of the aged wire before any malfunction takes *** are different types of Non-Destructive Testing （NDT）techniques available for aircraft wiring inspection and one of them is the ultrasonic guided waves *** guided wave ultrasonics,inspection can be carried out for a long distance from a single *** order to understand the behaviour of guided waves in aircraft wiring,a modelling tool was used to simulate and predict the behaviour of guided wave characteristics in wires with respect to the stiffness property of the *** defects were introduced into the ***,the modelling results have been validated experimentally.

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Open Journal of Internal Medicine 2011年第2期1卷 14-16页

作者： Mona Mlika Heifa Azouz Inès Chelly Sofiène Ayadi Wael Rbai Nidhameddine Kchir slim Haouet Mohamed Moncef Zitouna Department of Pathology La Rabta Hospital

Background: Periarteritis nodosa (PAN) is a necrotizing systemic vasculitis involving mediumsized arteries and rarely the smallsized ones. It affects various organs and is generally revealed by different non specific organs. The aim of the authors is to report a rare revealing manifestation of this disease which is the perforation of the small bowel and to highlight the most important histological features. Case report: The authors describe the case of a 48-year-old Caucasian woman, without a particular past medical history, who presented an acute surgical abdomen. A surgical exploration was decided and showed a necrosis of the small bowel and the appendix. A segmental ileectomy was performed. The histological examination of the specimen showed small vasculitis-affected with fibroid necrosis dealing to the diagnosis of intestinal perforation caused by a PAN was retained. Post-operatively, the patient was put on immunosuppressive therapy and presented a prolonged healing process and was discharged from the hospital 20 days after her admission. Conclusion: Although it is rare for PAN to be revealed by small bowel perforation, it should be kept in mind when facing ischemic change of the small bowel.

关键词： Periarteritis Nodosa Intestinal Perforation Vasculitis

Shoulder Reconstruction with Massive Scapular-Proximal Humerus Osteoarticular Allograft after Total Scapulectomy for Proximal Humerus Osteosarcoma Recurrence

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Open Journal of Orthopedics 2015年第12期5卷 390-399页

作者： Alidou Traoré Karim Tribak Brahima Doukouré Daouda Kanaté Soumaro slim Alban Mbende Sidi Yaya Traoré Rebecca Eva Boka Christian Delloye Trauma and Orthopaedic Unit Yopougon Teaching Hospital Abidjan Cote d’Ivoire St-Luc University Clinics (UCL) Brussels Belgium Department of Pathology Cocody Teaching Hospital Abidjan Cote d’Ivoire Neurosurgery Unit Yopougon Teaching Hospital Abidjan Cote d’Ivoire

Bone tumors are infrequent within the scapula. Total scapulectomy with massive allograft reconstruction represents an attractive alternative to amputation when the whole scapula is invaded with tumor and the neurovascular bundle can be preserved during tumor resection. We report a case of resection of the scapula and proximal humerus for recurrent osteosarcoma with massive allograft reconstruction of the scapula and proximal humerus. A 22-year-old male patient was seen in February 1992 for a pathological fracture of the proximal left humerus. In July 1992, a resection of the proximal end of the humerus followed by a reconstruction with osteochondral allograft and nail osteosynthesis was performed. The postoperative course was uneventful. In September 2009, 17 years later, the patient presented with a huge tumor developed at the level of the scapula. There was no vascular or neurological symptom. Plain radiography showed an expansive osteolytic mass. CT scan demonstrated scapular and proximal humerus invasion. An extended assessment revealed the presence of two pulmonary nodules. The biopsy confirmed the recurrence of osteosarcoma. The indication of a resection of both the left scapula and the 1992 allograft which was completely invaded at its proximal portion and the complete reconstruction of the scapula and the proximal humerus with allograft was made. One year postoperatively, we note a favourable outcome in terms of musculoskeletal functions. Despite two resection surgeries of pulmonary nodules and chemotherapy treatments, the patient developed new lung metastases and an unfavourable outcome. Although shoulder function was almost completely eliminated following surgery, preservation of elbow, wrist and finger motion resulted in an acceptable level of postoperative limb function. This reconstruction appears to be an attractive technique to be used in similar cases. The necessity of a reliable tissue bank with quality allografts in sufficient number is paramount.

关键词： Osteosarcoma Scapula Proximal Humerus Allograft

Association of hepatitis C virus infection and diabetes in central Tunisia

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World Journal of Gastroenterology 2009年第22期15卷 2778-2781页

作者： Naoufel Kaabia Elhem Ben Jazia Ines slim Imen Fodha Wissem Hachfi Rafika Gaha Mabrouk Khalifa Aoutef Hadj Kilani Halim Trabelsi Ahmed Abdelaziz Fethi Bahri Amel Letaief Department of Internal Medicine and Infectious Disease Unit of Research:04/UR/08-21University Hospital Farhat Hached Microbiology Unit University Hospital Sahloul Epidemiology Unit University Hospital Farhat Hached Department of Medicine Msaken hospital

AIM：To investigate hepatitis C virus （HCV） seroprevalence in Tunisian patients with diabetes mellitus and in a control group. METHODS： A cross-sectional study was conducted to determine the HCV seroprevalence in 1269 patients with diabetes （452 male, 817 female） and 1315 nondiabetic patients, attending health centers in Sousse, Tunisia. HCV screening was performed in both groups using a fourth-generation enzyme immunoassay. RESULTS： In the diabetic group, 17 （1.3%） were found to be HCV-infected compared with eight （0.6%） in the control group, although the difference was not significant （P = 0.057）. Quantitative PCR was performed in 20 patients. Eleven patients were positive and showed HCV genotype lb in all cases. CONCLUSION： Frequency of HCV antibodies was low in patients with diabetes and in the control group in central Tunisia, with no significant difference between the groups.

关键词： Hepatitis C virus Diabetes mellitus Tunisia Epidemiology Autoantibodies Hepatitis