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 paper presents a study of the content of water - soluble and exchangeable forms of zinc in the dust on the main road M-17 through the city of Mostar. In the observed area, five localities were selected for the research of defined tasks. Dust samples were taken in one cycle (autumn 2018). The specified metal was determined in accordance wi...

By Marija Jevrić, Ivana Ćipranić, Nataša K. Vuković

 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

 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

 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

 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

 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

 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