Dental composites are commonly used as restorative materials in dentistry, which helps to maintain a healthy tooth structure. In this work, dental composites were prepared by blending hexagonal boron nitride nanoparticle (h-BN) with glycidyl methacrylate (GMA) / Triethylene glycol dimethacrylate (TEGDMA) based on modified nanoparticles as fil...

By Vesna Teofilović, Henda S. A. Abdussalam, Jelena Pavličević, Ayse Z. Aroguz

 The performance of solar systems is affected by the value of its tilt angle with respect to the horizontal surface, where the variation of tilt angle changes the amount of incident solar radiation. In this paper, hourly extraterrestrial solar irradiance, beam, diffuse and solar radiation on the tilted surface is modeled and calculated based o...

By Snežana Dragićević, Milan Marjanović, Vojislav Vujičić, Danijela Milošević

 In order to determine the competitiveness in the global market, for the purposes of this paper, secondary collected data of basic structural indicators of business of companies and entrepreneurs from the Republic of Srpska for the period from 2017 to 2019 were used. They were processed by descriptive statistics, and in order to determine the ...

By Mirjana Milovanović, Ružica Đervida, Branka Marković

 Digital marketing is a branch of marketing that uses digital technologies based on the Internet and social networks. It began to develop in the 2000s and has been in constant expansion ever since. Digital marketing uses online strategies and these activities are constantly evolving, following the habits and needs of internet users. This type ...

By Jelena Ružić, Jelena Poznanovi, Branko Ćurlić, Đorđe Janevski

 Negotiations with the World Trade Organization and membership in it represent one of the de facto conditions for membership in the European Union, which is the basic goal of our foreign policy. In the first part of the paper, the authors discussed the historical aspect of Serbia's current position in the World Trade Organization, and the reas...

By Aleksandra Milošević, Milena Milojević, Goran Stanišić

 The real estate market is attractive for investment property gains obtained illegally with the aim of making it legitimate. Namely, the possibility of paying real estate with cash of dubious origin, the use of shell companies and trusts to create complicated ownership structures are just some of the methods of money laundering in the real est...

By Ajla Šurković

 Organogels are semi-solid materials in which gelator molecules in the presence of chosen organic solvent compose self-assembled mesh structure that prevent solvent to flow. During a past few decades, the application of different organogel systems into numerous areas of materials science has been approved (e. g. drug delivery). Considering cru...

By Nenad Janković, Emilija Milović, Jelena Petronijević, Nenad Joksimović, Dušan Milivojević

 In this study, the chemical activation hydrochar of the spent mushroom substrate was used to examine its potential for application as a sorbent in order to remove Pb2+ from aqueous solutions. The hydrocar was prepared in a hydrothermal reactor at a temperature of 200 °C for a reaction time of 1 h. It was then chemically modified with 20 %...

By Marija Kojić, Slavica Porobić, Đurica Katnić, Biljana Sikirić, Antonije Onjia, Milena Marinović-Cincović

 Job satisfaction is the cognitive, affective, and evaluative response of an individual to their job. This study aimed to examine whether there are differences in the general job satisfaction depending on the socio-demographic characteristics of healthcare workers: gender, age, level of education, duration of service, marital status, income an...

By Dijana Đurić, Biljana Mirković

 Communication is an important activity that, even unconsciously, we carry out at every moment of our daily functioning. Although it is well known that good communication is the foundation of successful interpersonal relationships, that it is one of the key elements of success in various professional fields, we witness that very often people d...

By Danijela Jokanović