New doctoral dissertation

July 5, 2024
VILNIUS TECH Library invites you to follow the published new dissertations. The dissertation „Modelling the Mechanical Properties and Fracture Risk of Canis Lupus Familiaris Bone Tissue in the Context of Osteoporosis“ prepared by VILNIUS TECH, Ernest Kostenko. The dissertation was prepared in 2019–2024. Scientific Consultant – Prof. Dr Algirdas Maknickas.

The dissertation was defended at the public meeting of the Dissertation Defence Council of the Scientific Field of Mechanical Engineering in the SRA-I Hall of Vilnius Gediminas Technical University at 9 a.m. on 5 July 2024.

The effects of osteoporosis on the human body have been extensively de-scribed in the scientific literature. The focus is on human health, while ani-mals are used only as laboratory subjects and receive little attention. There-fore, this dissertation focuses on the canine lumbar spine, its changes in the context of osteoporosis and biomechanics, and the studies that have been performed to determine the risk of fracture of the affected vertebrae. In the preparation of the dissertation, a finite element method was used to con-struct a numerical model of the canine lumbar spine. In addition, biomechanical, imaging and histopathological tests were performed, and an analysis of the data obtained was presented. The aim of the dissertation was achieved through four objectives. A digital model of the canine lumbar spine was constructed, and biomechanical calculations were subsequently performed using the model to assess the changes in biomechanical performance associated with osteoporosis. Micro-computed tomography (micro-CT) allowed the assessment of the structure and density of the canine lumbar vertebral bone tissue. The histomorphometric studies allowed for a more detailed analysis of the structure and density of the bone tissue, as well as the influence of the mechanical properties. A unique fracture risk score has been proposed to analyse the specific biological risk factors affecting canine bone tissue. The dissertation consists of an introduction, three chapters, general conclusions, a list of references, a list of publications and conference presentations, an abstract in English and four appendices. The introduction discusses the problem, the relevance, the objects of study, the aim and objectives of the dissertation, the novelty and the practical significance. The chapters provide a detailed description of the context of osteoporosis in medicine, veterinary medicine and biomechanics, present the study methodology, model development and the development of a risk score calculator, and analyse the activity of the dogs before and after castration. The third chapter presents the results which demonstrate that dogs can develop osteoporosis. These results are substantiated by the detection of large pores in the lumbar spine using micro-computed tomography and histomorphometry, as well as validation of the real and numerical models. Four scientific publications have been published on the topic of the dissertation, indexed in the Clarivate Analytics Web of Science database. The results of the research were presented at six scientific conferences in Lithuania and abroad. It is hoped that this thesis will stimulate further research in this field and lead to new considerations on the treatment of osteoporosis in dogs, with due attention being paid to the health research of these animals.

Doctoral dissertation readers can search via VILNIUS TECH Virtual Library.

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Student Memo: Where to park your car or bicycle, eat, and find your classrooms
Student Memo: Where to park your car or bicycle, eat, and find your classrooms
When starting your studies, it is not always clear during the first week where you can park your car or bicycle, which building your seminar will be in, or where you can eat or heat up your own food during breaks. To make settling into the academic year easier, we have prepared this memo. Student Car Parking: Students attending lectures at Saulėtekio al. 11 can park their cars in the lot located on Šatrijos Raganos Street. There is no barrier in this lot. How to find the lot: Driving from Saulėtekio al. – going up the hill past the roundabout and the university buildings. Or entering from Pragiedrulių, Mileišiškių sodų, or other streets onto Šatrijos Raganos Street – going down the hill before the roundabout and the university buildings. Students attending lectures on Plytinės Street can park in the lots located there. Students can enter the gated lot by tapping their activated student ID card at the terminal. Entrance to the lots is from Plytinės Street. Antanas Gustaitis Aviation Institute (AGAI) students, lecturers, and students or staff arriving at "Linkmenų fabrikas" can park in all lots. The barrier opens by tapping an activated student or staff ID card at the terminal. There are no dedicated parking lots for students attending lectures at the Old Town Campus (Trakų rūmai). Canteens and Cafes: Saulėtekis Campus: "Maisto imperija" (Building S2, 1st floor) – weighed food (you can build your own plate) – 1.70 € per 100 g, lunch of the day – 7.50 €, snacks, coffee, and other drinks. You can also heat up your own food here. Working hours: Monday–Thursday: 08:00–16:00; Friday: 08:00–15:00. "ARC BISTRO" (Building S3, 1st floor) – a menu consisting of a multi-course selection and daily lunch at a fixed price (up to 10 €), as well as snacks, coffee, and other drinks. Working hours: Monday–Friday: 11:00–15:00. Plytinė Campus (P2, 1st floor): "Confetti" – a menu consisting of a multi-course selection and daily lunch at a fixed price (up to 10 €), as well as snacks, coffee, and other drinks. You can also heat up your own food here. Working hours: Monday–Thursday: 09:00–16:00; Friday: 09:00–15:00. Old Town Campus (Senamiesčio rūmai): "Confetti" (Islandijos str. 3) – a menu consisting of a multi-course selection and daily lunch at a fixed price (up to 10 €), as well as snacks, coffee, and other drinks. Working hours: Monday–Friday: 07:45–15:00. Places where you can heat your own food in microwaves: When using microwaves, please maintain cleanliness, follow safety rules, and respect others: do not put in or heat items with shiny surfaces (e.g., cutlery, aluminum foil, etc.), do not slam the doors or other surfaces, wipe or clean the inside of the microwave or other surfaces (including the kitchenette) if needed, do not cut in line, and do not stop someone else's food from heating without permission, etc. Saulėtekis Campus: In the "Maisto imperija" canteen (Building S2, 1st floor), as well as in the Sustainability Centre (Building S5), and the 5th and 6th-floor kitchenettes in Building S6. Plytinė Campus: In the "Confetti" cafe (Building P2, 1st floor). Old Town Campus: In the Faculty of Architecture's 2nd and 3rd-floor kitchenettes (at the end of the corridor). AGAI: In the 2nd-floor kitchenette of the old building (near the Dean's office). It is planned that microwaves will also be available in the new building in the future. Linkmenų Campus: In the 2nd-floor kitchenette at "Linkmenų fabrikas". Library: Room 119, 1st floor. You can also make tea/coffee here. Places to leave your bicycle: Saulėtekis Campus: At special bike racks near the entrance to Building S2, and in the Central Building parking lot. Plytinė Campus: In the two designated bicycle shelters in the courtyard between buildings P1 and P2. Old Town Campus: At special bike racks near the entrances to each building. AGAI and Linkmenų Campus: At special bike racks near both departments. Library: At special bike racks near the entrance. Department/Building Abbreviations: Saulėtekis Campus (Saulėtekio al. 11, Vilnius): S1 Central Building (Administration, International Studies Centre, International Relations Office, etc.) S2 Classroom Building S3 Educational Building (Faculty of Civil Engineering, Faculty of Business Management) S4 Classroom Building (Faculty of Environmental Engineering, Sustainability Centre, Food Laboratory) S5 Educational Building (Faculty of Environmental Engineering, Sustainability Centre, Food Laboratory) S6 Laboratory Building (Faculty of Fundamental Sciences, Information Technology and Systems Centre, Academic Support Centre, etc.) S7 Laboratory Building Plytinė Campus (Plytinės str. 25, Vilnius): P1 or P Laboratory Building P2 Educational Building (Faculty of Electronics, Faculty of Mechanics, Faculty of Transport Engineering) P3 Educational Building Linkmenų Campus (Linkmenų str. 28, Vilnius): L1 Building (Institute of Building Materials) L2 Building (Road Research Institute) L3 Building L4 Building L5 Educational Building (Linkmenų fabrikas) L6 Educational Building (Antanas Gustaitis Aviation Institute) Old Town Campus (Trakų str. 1, Vilnius): T1 or T Educational Building (Faculty of Architecture) T2 Educational Building (Faculty of Creative Industries) T3 Educational Building T4 Educational Building T5 Educational Building Old abbreviations that might still appear in some contacts: SNR – Senamiesčio rūmai (Old Town Campus) SRK-I – Saulėtekio rūmų pirmas korpusas (Saulėtekis Campus First Building) SRK-II – Saulėtekio rūmų antras korpusas (Saulėtekis Campus Second Building) SRL – Saulėtekio rūmų laboratorinis korpusas (Saulėtekis Campus Laboratory Building) SRL-II – Saulėtekio rūmų antras laboratorinis korpusas (Saulėtekis Campus Second Laboratory Building) MAC – Saulėtekio centriniai rūmai (Saulėtekis Central Building) AGAI TLK – Antano Gustaičio Aviacijos instituto Treniruoklių ir laboratorijų korpusas (Antanas Gustaitis Aviation Institute Simulator and Laboratory Building). Other Addresses: Kyviškės Airfield: Lakūnų str. 7D, Kyviškės Sports and Art Centre: Saulėtekio al. 28, Vilnius Library: Saulėtekio al. 14, Vilnius Lithuanian Maritime Academy: I. Kanto str. 7, Klaipėda. Thematic Reading Rooms in Faculties: Architecture and Creative Sciences Reading Room (Trakų str. 1, T1, 1.15, Vilnius) Technology and Management Sciences Reading Room (Saulėtekio al. 11, S1, C03, Vilnius) Mechanics, Electronics, and Transport Sciences Reading Room (Plytinės str. 25, P2, 179, Vilnius) Maritime Sciences Reading Room (I. Kanto str. 7, Klaipėda)
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