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Danijela Lončar, Rahima Jahić, H. Porobic-Jahic, Amira Bijedić, Irma Bijedić, Katarina Kovačević, Asja Omerčehajić, Sehveta Mustafić et al.

D. Gabrić, Ana Budimir, I. Bago, L. Marković, Verica Pavlić, Bleron Azizi

Every year, with the increasing number of dental implants placed, there is an increase in the incidence of peri-implantitis. The treatment of peri-implantitis is very complex and among other things includes mechanical and chemical decontamination of the implant surfaces, which is very challenging and often not predictable due to the surface properties of the implants. Photodynamic therapy recently has emerged as a potential treatment alternative or adjuvant treatment to peri-implantitis. Its potential to decontaminate implant surfaces without damaging the surface and the implants surrounding tissues has generated much interest in the scientific community. The possibilities of photodynamic therapy in treatment of peri-implantitis are opening new challenges in establishing optimal conditions for the clinical application of aPDT. Due to its non-invasiveness and ease of use this method can be effective when applied alone or as an adjunct therapy to conventional methods for treating peri-implantitis.

Cette recherche est inspirée par des projets visionnaires visant à trouver une manière de créer un environnement construit qui aura un petit impact sur la nature et tous les êtres humains. Cela aidera tous les participants, lors du processus de la prise de décision, à prendre la meilleure option en choisissant le matériel/matériau, la technologie de construction et le système constructif, qui auront le moindre impact négatif sur l'environnement, en tenant compte de toutes les données nécessaires.En analysant les méthodes et les outils existants avec leurs avantages et leurs défauts, les recherches essaient de trouver une manière pour surmonter les obstacles identifiés.Les méthodologies existantes montrent l'importance de la prévision de l'impact sur l'environnement et peuvent montrer les différences entre les systèmes comparés, mais il leur manque la quantification des données.Approche proposée sa base sur une symbiose des méthodologies et des outils existants.La nouvelle méthode inclut l'évaluation du système de construction (y compris la comparaison et la classification) et la quantification de l'impact sur l'environnement. Cela fournit une image claire de l'impact du système choisi et facilite la prise de décision.A la fin du processus, l'on voit clair ce que l'on pourrait et devrait changer et améliorer pour aboutir à un meilleur résultat.Cette nouvelle méthode fourni la comparaison, l'évaluation et la quantification de la production des déchets de construction et contribue à la diminution de l'impact négatif sur l'environnement

Jela Grujić-Vasić, L. Ožegović, Faruk Konjhodžić, S. Loga, Š. Pilipović, I. Zulić, M. Mijanović, 4. SulejmanRedžić

Goran Radoš, Danijela Martinović, Ljiljan Veselinović, Jasmina Mangafić

As the 21 st -century paradigm, sustainable development implies, among other things, the need to ensure environmental sustainability through replacement of traditional energy sources with environmentally acceptable renewable ones. Economic literature identifies a number of prerequisites and determinants needed for the successful use of renewable energy sources. The purpose of this study is to deepen our understanding of the determinants of an individual’s willingness to support the implementation of energy-saving measures. A nation-wide citizen perception survey of 3,024 respondents was carried out in Bosnia and Herzegovina in 2018 to collect data for this study. The paper takes a micro-level approach focusing on the behaviour of an individual. The respondents were found to have a positive attitude toward renewable energy projects. Most of them (72.78%) support such projects. Logistic regression (maximum-likelihood estimation) was employed to test the proposed hypotheses. The results of the study show that there are several important predictors of an individual’s support for projects related to renewable energy sources, including age, gender, income, satisfaction with the standard of living, religiousness, living in a male-dominated household, and ethnicity. The results of the study can help policymakers to design and adopt adequate policy measures for promoting financial investments in renewable energy sources, and project developers to tailor their communication and promotion strategies to the needs of specific population segments to better achieve the goals and benefits of such projects.

Seid Hajdarević, M. Obućina, Muhamed Jusufagic, I. Busuladžić, A. Ibrišević, Sandra Martinović

• This paper investigated the withdrawal capacity of the double-threaded nuts mounted in 3D-printed materials. The basic technical properties and the withdrawal force of the double-threaded nuts for the specimens made of PLA, WPLA, and layered WPLA+PLA configuration (with and without STP adhesive) were investigated. The results are compared with the literature data of withdrawal force for beech wood, MDF, and par-ticleboard with and without the adhesive. The research has determined the effects of the properties of 3D printed materials (density, compressive and tensile strength), the infill and printing patterns, and adhesive on withdrawal capacity of double-threaded nuts. Double-threaded nuts mounted with adhesive had higher withdrawal forces (about 25 % for PLA and WPLA specimens, and 15 % for layered WPLA+PLA specimens) than those mounted without adhesive. The highest values of withdrawal forces, regardless of the adhesive, were obtained for layered WPLA+PLA configuration, followed by WPLA, and the lowest for PLA. No significant difference was found be-tween the withdrawal forces for WPLA and layered WPLA+PLA specimens for both cases – with and without an adhesive. The withdrawal forces of double-threaded nuts for the PLA specimens were higher than the withdrawal forces for the beech (16.7 % mounted without adhesive and 11.6 % mounted with an adhesive), and other combinations showed a difference higher than 35 % in favor of 3D printed materials. The present analysis, which determines and compares used traditional dismountable connectors in 3D-printed furniture elements, is applicable for research and practice.

Cette thèse présente les premières étapes vers la réalisation d’un oscillateur superradiant ultra-stable. Elle explore l’utilisation du phénomène quantique de superradiance, qui repose sur la cohérence et l’indistinguabilité d’un ensemble atomique pour produire une émission optique cohérente. Un laser superradiant est constitué d’atomes couplés collectivement à une cavité Fabry-Perot, fonctionnant dans le régime dit de ``mauvaise cavité'' afin de minimiser la sensibilité aux fluctuations de cavité.Dans ce travail, la première réalisation et caractérisation d’un ensemble atomique d’ytterbium refroidi sont démontrées, jetant les bases d’un futur fonctionnement superradiant. L’installation expérimentale pour le transport des atomes dans la cavité a été planifiée, permettant un chargement séquentiel des atomes pour une émission superradiant quasi-continue.Afin de soutenir la future caractérisation du laser superradiant, une liaison optique fibrée compensée a été mise en place pour le transfert local de fréquence ultra-stable. Ce système intègre un traitement du signal entièrement numérique et une méthode de caractérisation innovante ne nécessitant pas d’accès à l’extrémité distante de la fibre. L’instabilité relative de fréquence obtenue atteint l’ordre de 10^{-18}, démontrant ainsi son adéquation pour la dissémination de fréquence de haute précision au sein d’un institut.

Prof. Dr. Soren Galatius, Mathematisches Institut, Dr. Thomas Goodwillie, Dr. Dale Husemoller, Dr. Michele Intermont, Dr. Ivan Izmestiev, Prof. Dr. Bjorn Jahren, P. D. Johnson et al.

K. Chatti, N. Essabbah, H. Regaieg, S. Boughattas, R. Sfar, M. Nouiram, T. Kamoun, H. Charfi et al.

A. Adamić, Salem Altalie, J. Arnaud, A. Alias, Erin Blankenship-Sefczek, I. Caldas, Samarika Dahal, Eddy de Valck et al.

/ Mandibular gracilization through time: a 3D comparison of ancient and contemporary populations

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