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

 The process of digital business transformation is present today in both, developed and less developed economies. This process is primarily reflected in the application of modern information and communication (ICT) achievements, in performance of business processes in all branches of the economy, and public administration. This has enabled the...

By Mihajlo Travar, Saša Ristić, Igor Dugonjić

 Management of foreign exchange policy is complex activity for the leaders of economic policy and it cannot be autonomous, but has to be aligned with other measures of economic policy ( policy of managing demand, trend of monetary aggregates,export offer,etc.). Deficits from the trade balance, with constant overvaluing of local currency and in...

By Dejan Grujić

 A reliable, practice-oriented education is the most important basis for a successful start in a profession. Requirements more specific and more complex companies' labour market as regards its ability to students preparing for employment had an important role in building the Lisbon Strategy which states that each Member State should focus on t...

By Marius Calin Benea

 Crises are both unplanned and unwanted, but, in present times, also expected events in lifespans of each organization and economic branch. Global COVID-19 pandemic has proved that tourism is one of most sensitive economic branches to crisis. The aftermaths of the pandemic were experienced, more or less, in almost all countries, especially tho...

By Dragan Bulatović, Bojana Ostojić

 Due to its many characteristics, the Internet deserves special attention in criminology, as well as criminal law and politics. Today, the Internet has become a global, current, interactive module and a civilizational apparatus that enables automated information processing. Due to its various features, the Internet provides unique opportunitie...

By Biljana Dimitrić

 Todayʼs modern man is very interested in the environment in which he lives and exists. Based on that, manʼs great interest in futur reality in geopolitcs, espesially in the context of the intensity that is going to change and create geopolitical order. Geopolitical order has direct link to future geopolitical factors and other phenomena that ...

By Dražan Erkić, Aco Bobić

 Rheological models represent a powerful tool for creating a comprehensive phenomenological view of the strain response, especially in structures exposed to long-term loading. Models are often arranged to fit experimental results, and this is achieved by including empirical parameters in their formation. Combining theoretically ideal bodies wi...

By Nataša Kopitović-Vuković, Nikola Baša, Radomir Zejak, Marija Jevrić

 Psychopathy is a personality trait characterized by emotional instability and deviant behavior. Interpersonal and affective characteristics such as lack of empathy, shame or remorse, as well as behavioral characteristics such as impulsivity, poor control, and antisocial behavior and promiscuity, define psychopathy as a negative impact on the ...

By Mladen Cimeša, Biljana Dimitrić