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Classification and Spatio-Temporal Change Detection of Land Use/Land Cover Using Remote Sensing and Geographic Information System in the Manouba Region, NE Tunisia

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Journal of Geographic Information System 2023年第6期15卷 652-668页

作者： Nadia Trabelsi Ibtissem Triki imen Hentati Nizar Rachdi Laboratoire Eau Energie Environnement Ecole Nationale d’Ingénieurs de Sfax Sfax Tunisia Faculte des Sciences de Gafsa Campus Universitaire Gafsa Tunisia Geoengine Geomatics and Geosciences Engineering Rue du lac de Constance Tunis Tunisia

Land use/land cover (LULC) mapping and change detection are fundamental aspects of remote sensing data application. Therefore, selecting an appropriate classifier approach is crucial for accurate classification and change assessment. In the first part of this study, the performance of machine learning classification algorithms was compared using Landsat 9 image (2023) of the Manouba government (Tunisia). Three different classification methods were applied: Maximum Likelihood Classification (MLC), Support Vector Machine (SVM), and Random Trees (RT). The classification aimed to identify five land use classes: urban area, vegetation, bare area, water and forest. A qualitative assessment was conducted using Overall Accuracy (OA) and the Kappa coefficient (K), derived from a confusion matrix. The results of the land cover classification demonstrated a high level of accuracy. The SVM method exhibited the best performance, with an overall accuracy of 93% and a kappa accuracy of 0.9. The ML method is the second-best classifier with an overall accuracy of 92% and a kappa accuracy of 0.88. The Random Trees method yielded the lowest accuracy among the three approaches, with an overall accuracy of 91% and a kappa accuracy of 0.87. The second part of the study focused on analyzing LULC changes in the study area. Based on the classification results, the SVM method was chosen to classify the Landsat 7 image acquired in 2000. LULC changes from 2000 to 2023 were investigated using change detection comparison. The findings indicate that over the last 23 years, vegetation land and urban areas in the study area have experienced significant increases of 31.94% and 5.47%, respectively. This study contributed to a better understanding of the classification process and dynamic LULC changes in the Manouba region. It provided valuable insights for decision-makers in planning land conservation and management.

关键词： Remote Sensing GIS LULC SVM MLC RT Change Detection

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Association of Fas/Apo1 gene promoter (-670 A/G) polymorphism in Tunisian patients with IBD

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World Journal of Gastroenterology 2009年第29期15卷 3643-3648页

作者： Walid Ben Aleya imen Sfar Leila Mouelhi Houda Aouadi Mouna Makhlouf Salwa Ayed-Jendoubi Samira Matri Azza Filali Taoufik Najjar Taeib Ben Abdallah Khaled Ayed Yousr Gorgi Laboratory of Immunology EPS Charles Nicolle 1006 Bab Saadoun Tunis 1006 Tunisia Department of Gastroenterology EPS Charles Nicolle Tunis 1006 Tunisia Department of Gastroenterology La Rabta Tunis 1006 Tunisia

AIM： To detect a possible association between the polymorphism of the （-670 A/G） Fas/Apol gene promoter and susceptibility to Crohn＇s disease （CD） and ulcerative colitis （UC） in the Tunisian population. METHODS： The （-670 A/G） Fas polymorphism was analyzed in 105 patients with CD, 59 patients with UC, and 100 controls using the polymerase chain reaction restriction fragment length polymorphism method. RESULTS： Significantly lower frequencies of the Fas -670 A allele and A/A homozygous individuals were observed in CD and UC patients when compared with controls. Analysis of （-670 A/G） Fas polymorphism with respect to sex in CD and UC showed a significant difference in A/A genotypes between female patients and controls （P corrected = 0.004 ＂in CD patients＂ and P corrected = 0.02 ＂in UC patients＂, respectively）. Analysis also showed a statistically significant association between genotype AA of the （-670 A/G） polymorphism and the ileum localization of the lesions （P corrected = 0.048） and between genotype GG and the colon localization （P corrected = 0.009）. The analysis of IBD patients according to clinical behavior revealed no difference. CONCLUSION： Fas-670 polymorphism was associated with the development of CD and UC in the Tunisian population.

关键词： Fas/Apol Gene polymorphisms Inflammatory bowel disease Crohn's disease Ulcerative colitis

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Ecological Study of Two Grasses: Cenchrus ciliarisand Digitaria commutateEndangered Autochthonous of the Dry Zone of Tunisia

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Open Journal of Forestry 2014年第4期4卷 349-362页

作者： imen Dhib Abdessalem Abdessamad Mustapha Ksontini Ali Ferchichi Laboratoire d’arido culture et culture oasiènne Institute of the Dry Regions Medenine Route du Djorf Km Medenine Tunisie Laboratoire de sylviculture forstière National Institute of Searches in Rural Genius Water and Forest Ariana Tunis

The Saharian ecosystems present an important intensity of rising sensitization to: Erosion, and desertification whose impacts are irreversible. On the one hand, the weakness of the yield and the poverty of soil lead to a limited biodiversity. In addition to these difficulties, hydra is the main cause of the rarification of certain pastoral species such as Cenchrus ciliaris and Digitaria commutata. The ecological study underlines a distribution of these species which are very dependent on water resources in the dry regions of Tunisia. The bioclimatic (temperature, pluviometry) variations lead to modifications to these species from one area to another which are translated through several parameters. Concerning the number of bundles, the difference is important. The national park of Bouhedma records the highest number, compared with Bni khdach, Jerba, Khanguit aicha and Matmata respectively. The variation inter-site of study also is considerable by the study of the morphological parameters (height, number and length of leaves by bundle, number of ear) whose bundles of the national park Bouhedma occupy the first class.

关键词： Ecological Study Grasses Endangered Dry Zone Of Tunisia

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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

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Approach to Model-Based Development of Context-Aware Application

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Journal of Computer and Communications 2015年第5期3卷 212-219页

作者： imen Jaouadi Raoudha Ben Djemaa Hanene Ben Abdallah MIRACL FSEG Sfax Tunisia MIRACL ISIMS Sfax Tunisia

In order to address challenges posed by advances in mobile computing, ubiquitous devices software engineering, wireless and sensor technologies in many applications running, this paper provides an approach that simplifies the design and the implementation of context-aware Interactive systems called CAISDA (Context-Aware Interactive System Development Approach). This approach is based on the analysis and synthesis of context-aware frameworks proposed in literature.

关键词： Context-Aware Model Based Development Runtime Adaptation

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Effect of Insecticides on TrichogrammaParasitoids Used in Biological Control against Prays oleaeInsect Pest

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Advances in Chemical Engineering and Science 2015年第3期5卷 362-372页

作者： imen Blibech Mohieddine Ksantini Taieb Jardak Mohamed Bouaziz Laboratory of Genetic Resources Improvement and Protection of Olive Tree Olive Tree Institute Sfax Tunisia Electrochemistry and Environment Laboratory National School of Engineers of Sfax University of Sfax Sfax Tunisia

This study investigated the direct effect of the insecticides deltamethrin and spinosad on three egg parasitoids species: Trichogramma oleae, T. cacoeciae and T. bourarachae. The parasitoid pupae were exposed to pesticide residues on fresh olive tree leaves at recommended concentrations (RC) at different time intervals: 3, 10, 17, 24 and 31 days after pesticide applications. Parasitism viability (% emergence from parasitized eggs) and adult emergence time (developmental time from pupa to adult emergence) were evaluated. Regarding to the International Organization of Biological Control (IOBC) guidelines, results of toxicity effects of insecticides show that: Deltamethrin was moderately harmful to all Trichogramma species at RC (Decis®100 milliliters·ha−1), however, spinosad was harmless to moderately harmful at RC (Tracer®20 milliliters·ha−1). Trichogramma species revealed differences with regard to adult emergence time and exhibited significant changes in parasitism viability with increasing time after pesticide treatment. While deltamethrin residues affected parasitism viability 31 days after the product application, spinosad displayed similar viability for almost species 24 days after the application. The usefulness of Trichogramma parasitoids used as biological control agents, in olive tree ecosystem, was discussed in integrated pest management programs for Prays oleae control when parasitoid species were exposed during pupal stage to the insecticide residue.

关键词： Insecticide Effect Trichogramma Species Olive Tree Parasitism Viability Emergence Time

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ANALYSIS OF BREAST CANCER PROFILES USING BAYESIAN NETWORK MODELING

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International Journal of Biomathematics 2013年第3期6卷 53-66页

作者： HANEN BEN HASSEN imen KALLEL LOBNA BOUCHAALA AHMED REBAI Unit of Bioinformatics and BiostatisticsCenter of Biotechnology of Sfax Sfax/3038 Tunisia

Breast cancer is the leading cause of cancer-related death for women in Tunisia and the prognosis of its metastasis remains a major problem for oncologists despite advances in treatment. In this work we use Bayesian networks to develop a decision support system that is based on the modeling of relationships between key signaling proteins and clinical and pathological characteristics of breast tumors and patients. Motivated by the lack of prior information on the parameters of the problem, we use the Implicit inference for the structure and parameter learning. A dataset of 84 Tunisian breast cancer patients was used and new prognosis factors were identified. The system predicts a metastasis risk for different patients by computing a score that is the joint probability of the Bayesian network using parameters estimated on the learning database. Based on the results of the developed system we identified that overexpression of ErbB2, ErbB3, bcl2 as well as of oestrogen and progesterone receptors associated with a low level of ErbB4 was the predominant profile associated with high risk of metastasis.

关键词： Breast cancer profiles ErbB family learning Bayesian network Implicit inference metastasis risk.

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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

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Development of Rapid,Sensitive,and Effective Plasmonic Nanosensor for the Detection of Vitamins in Infact Formula and Milk Samples

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Photonic Sensors 2020年第4期10卷 316-332页

作者： Duygu Cimen Adil DENIZLI Department of Chemistry Hacettepe UniversityAnkara-06800Turkey

The aim of the present study is to develop a surface plasmon resonance sensor for the detection of vitamin B2,vitamin B9,and vitamin B12 in food samples by using the molecular imprinting *** vitamin B2,vitamin B9,and vitamin B12 imprinted and the non-imprinted surface plasmon resonance sensor chip surfaces were characterized by using contact angle measurements,atomic force microscopy,ellipsometry,and Fourier transform infrared-attenuated total *** real-time detection of vitamin B2,vitamin B9,and vitamin B12 was analyzed by using aqueous solutions in the concentration range of 0.01 ng/mL−10 ng/mL for vitamin B2,0.1 ng/mL−8.0 ng/mL for vitamin B9,and 0.01 ng/mL−1.5 ng/mL for vitamin *** limit of detection values was calculated as 1.6×10^(−4) ng/mL for vitamin B2,13.5×10^(−4) ng/mL for vitamin B9,and 2.5×10^(−4) ng/mL for vitamin B12,*** experiments were performed by using vitamin B1 and vitamin *** reproducibility of surface plasmon resonance sensors was investigated both on the same day and on different days for four *** studies of the prepared surface plasmon resonance(SPR)sensors were performed by liquid chromatography-tandem mass spectrometry(LC-MS/MS).

关键词： Vitamin molecular imprinting surface plasmon resonance food samples

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Lymphoid tyrosine phosphatase R620W variant and inflammatory bowel disease in Tunisia

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World Journal of Gastroenterology 2010年第4期16卷 479-483页

作者： imen Sfar Walid Ben Aleya Leila Mouelhi Houda Aouadi Thouraya Ben Rhomdhane Mouna Makhlouf Salwa Ayed-Jendoubi Houda Gargaoui Taoufik Najjar Taieb Ben Abdallah Khaled Ayed Yousr Gorgi Laboratory of Immunology Charles Nicolle HospitalTunis 1006Tunisia Department of Gastroenterology Charles Nicolle HospitalTunis 1006Tunisia

AIM:To assess the possible association between PTPN22(R620W) gene polymorphism and inflammatory bowel disease(IBD).METHODS:One hundred and sixty-four patients with IBD 105 Crohn's disease(CD) and 59 ulcerative colitis(UC) and 100 healthy controls were *** of the PTPN22 gene 1858C→T polymorphism was performed by restriction fragment length polymorphism-polymerase chain reaction with Rsa Ⅰ ***:The genotypic and allelic frequencies of(R620W) PTPN22 gene polymorphism reveal a significant association of the PTPN22 620-W allele with IBD,compared to the healthy control group(OR:17.81,95% CI:4.18-21.86,P = 0.00001).Nevertheless,nodifference in this polymorphism was found between CD and UC *** significant association was found between the frequencies of genotypes of the PTPN22 gene with either the clinical features such as sex,age,age at disease onset,and extent of colitis,or the production of serological markers(anti-Saccharomyces cerevisiae antibody in CD and perinuclear anti-neutrophil cytoplasmic antibody in UC).CONCLUSION:These observations confirm the association of IBD susceptibility with the PTPN22 1858T(620-W) allele in Tunisian patients.

关键词： Inflammatory bowel disease PTPN22 Genetic polymorphism Genetic susceptibility

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