Student model in intelligent tutor systems

Cilj diplomskega dela je teoretično raziskovanje modela učenca v inteligentnih tutorskih sistemih (ITS) in praktična realizacija konceptov na operacijskem sistemu Android, glede na hitro rast mobilneg segmenta in pomanjkanje ITS-jev na mobilnem področju. Predstavljeni so različni pristopi izdelave modela učenca in učnih stilov. Drugi del naloge predstavlja implementacija preprostega ITS-ja, kjer je model učenca zgrajen s pomočjo mehke logike, stereotipov in prekrivnega modela. Učno domeno v našem primeru predstavljajo osnovne operacije z ulomki. Aplikacija podaja personalizirano vsebino glede na trenutno stanje modela učenca. Učencu prav tako nudi personalizirane pomoči in vrača povratne informacije za optimalnejše učenje.The aim of this thesis is a theoretical research of the student model in intelligent tutoring systems (ITS) and a practical realisation of the concepts on Android OS, due to the rapid growth of the mobile segment and a lack of ITS in the mobile field. Various approaches in creating a student model and learning styles are presented. The second part of the thesis introduces the implementation of a simple ITS, where the student model is built using fuzzy logic, stereotypes and an overlay model. In the present case, the learning domain is represented by basic operations with fractions. The application provides personalised content based on the current state of the learner model. In addition, it offers personalised assistance, and a feedback for optimal learning

Leg amputation and dystrophic epidermolysis bullosa: a case report with 15 years of follow-up

International audienceOBJECTIVE: Dystrophic epidermolysis bullosa is a rare disease characterized by widespread blistering of the skin and mucous membranes, which may ultimately prompt limb amputation. In this context, the outcome of fitting a prosthesis to a chronically wounded stump is not well known. Our patient's experience (with 15 years of follow-up) should contribute to better knowledge of this topic.METHODS: A 37-year-old man presented with severe dystrophic epidermolysis bullosa. Recurrent skin carcinoma had led to an amputation below the knee. Despite incessant development of blisters on the stump and the need for wound dressing and padding, the patient has been able to walk freely with a prosthesis and a cane. A large number of skin sarcomas were excised over the 15-year period of prosthesis use. Two falls have resulted in limb fractures. A new sarcoma on the stump marked the end of the use of the prosthesis.CONCLUSIONS: Despite the constant presence of wounds on the stump, amputees with dystrophic epidermolysis bullosa can successfully be fitted with a prosthesis