The paper presents an analysis of current obstacles in the adoption of energy efficiency measures, and presents concrete proposals for measures for the development of energy efficiency and renewable energy sources. Students from the 1st cycle of study at the Faculty of Economics, University of Tuzla participated in the research. The methodology used in the paper is based on the use of primary (survey questionnaire) and secondary (desk research) data sources. The results of the research showed that the biggest obstacles to the adoption of energy efficiency measures are the following, respectively: lack of information and promotional activities, lack of interest in environmental issues and energy consumption, underdeveloped consumer awareness of potential energy savings, and financial obstacles. Potential proposals for energy efficiency measures generally go towards the proper design of laws and regulations for energy efficiency standards, then the labeling of energy efficiency of products, and finally, the results of the study showed that financial incentive measures have a significant (positive) effect on increasing energy efficiency.The results of this paper can assist policy makers in creating economic and energy policies and strategies.

The right to privacy is one of the fundamental human rights that serves to realize a man as a social being and protect the private spheres of their life. Even though this right can be looked at in different ways, due to the modern development of information and communication technologies, it is largely related to personal data and their availability to other persons. In that sense, the right to privacy is also protected via personal data protection. The basis for such protections in Serbian law has already been implemented in the Constitution of Serbia, and by adopting a new Personal Data Protection Law, the legislator has shown their determination to intensify and expand that protection. As it relates to criminal justice protection, a separate criminal offence of unauthorized collection of personal data is prescribed in Article 146 of the Criminal Code. The authors of this scientific paper will try to expose the threat to the right to privacy and personal data, and to give a clearer picture of how criminal justice protection of these values is realized in the Serbian law by presenting the elements of the aforementioned crime.

In this paper, we investigated YF3: Yb/Er, YF3: Yb/Tm, and YF3: Yb/Ho solid solutions prepared by reaction of an appropriate amount of oxides with ammonium difluoride (NH4HF2) as a fluorinating agent. These samples were characterized by Xray diffraction (XRD), magnetic measurements, and up-conversion (UC) photoluminescence spectra. The results show that all samples are single-phase and crystallize in an orthorhombic crystal structure of the ?-YF3 structure type. Above 100 K, the measured molar magnetic susceptibility was fitted by the Curie-Weiss law and the average effective magnetic moments for the observed samples were obtained. All the samples showed pure paramagnetic behavior. When doped with lanthanide elements (Yb/Er, Yb/Tm, Yb/Ho), YF3 solid solutions can emit characteristic green, red, blue, and near IR light under the excitation of a 980 nm laser diode.

+38765837328 Abstract In order to determine the extent to which reduced light intensity affects some morpho-anatomical characteristics and physiological parameters in young plants of Pisumsativum L. we compared certain plant parameters grown at full illumination (3200 lux) with plants grown at lower intensity illumination (1700, 1000 and 650 lux) in this research.The ultimate goal is a better understanding of the adaptations of the studied species (variety) to different light treatments. Low light intensity had a negative effect on the anatomical structure of the pea leaves and led to the development of thinner leaves compared to the plants grown at full illumination.The results obtained indicate that the thickness of the epidermis of the face and the back, the leaf thickness, the thickness of palisade tissue and the diameter of the conducting bundles decreased with decreasing illumination, while the thickness of the sponge tissue increased with decreasing illumination. The number of stomata both on the face and on the back of the leaves was lower at lower illumination, with the stomata cells being larger in size. The intensity of transpiration decreased with decreasing illumination, which was correlated with the decrease in the number of stomatal cells. The results show that lower light treatment had an inhibitory effect on the photosynthetic pigment content, which indicates the sensitivity of the studied species and raises the question of the level of adaptation and possible diminished yield of the species studied, if grown under poor light