This paper analyzes the quality of digitalization within state bodies themselves. The functions of three document management systems were examined: an existing classic application, an internal Document Management System, and an external Document Management System. The relationships and specificities of these systems' interaction with their environment, as well as their impact on the efficiency of public administration services, were investigated. The paper presents experiences and suggestions for improving efficiency in the domain of managing documents in digital form. It highlights the advantage of dynamic data and information exchange compared to the concept of static information provision offered by a Document Management System. The need for introducing new methods of information search and consolidation is elaborated. The process by which purposefully structured information is generated from a digitized mass of documents is examined.

The Park of Friendship in New Belgrade was constructed in 1961 as a commemoration of the First Non-Aligned Summit in Belgrade. This Park has offered leaders, visitors of the city the opportunity of planting their trees in the Park to symbolize Friendship, and hope, and a purpose of better life in all parts of the world. This article discusses the background and presents a number of facts concerning the Park of Friendship. Furthermore, there is a comparison between the Park of Friendship and the global situation in the second half of the 20th century. The Park was visited almost 200 world leaders since the founding of the Non-Aligned Movement and the First Conference of Non-Aligned Countries until the end of the 20th century. The practice was to plant a tree that was a significant mark of the Friendship and solidarity, and the desire of peace. To ensure that information about the Park of Friendship is kept, this article gives a list of all countries and the heads of state who have planted their trees. As time had passed the world changed: by overall progress, but also by a turbulent events. Some of countries do not exist anymore. Some of leaders from the Park finished their political carrier, sometimes a life, under tragic circumstances. By consulting available sources a review of their later life is presented. Finally, the emerging urban plans of the city of Belgrade may result in the permanent destruction of this monument place that is Yugoslav and, to put it mildly, a monument place to the entire world. Hence, this paper is a call to preserve the Park of Friendshipin the form of the memorial site since it is encrypted in the Cultural heritage register of Serbia, besides other values.

The Iron Regiment was a military unit officially designated as the Second Infantry Regiment “Knjaz Mihailo” of the Serbian Army during the First World War. It was formed in the Toplica region and consisted mainly of first and second call conscripts from this area. The soldiers of the Iron Regiment were awarded with numerous decorations, which can be classified into 17 different orders, including both domestic and foreign. These decorations are exhibited in the Memorial Room in Prokuplje. This paper presents an application designed for mobile devices such as tablets and smartphones, intended to provide detailed information about these decorations. The application is based on an Augmented Reality (AR) module that enables recognition and provides information about the corresponding decoration. The information is displayed in the form of purposefully prepared multimedia content, including text, audio, and video recordings, as well as interactive 3D models used to illustrate the reverse of each order. The interactive functionality enables image zooming for better observation of decoration details.

The main feature of the temperate continental climate in Belgrade is the occurrence of summer heat in the warm part of the year. In meteorology and climatology, the summer months are considered to be June, July, and August, which do not strictly coincide with the period of astronomical summer. Based on climatological criteria, a summer day is considered to be one in which the highest air temperature is equal to or higher than 25 degrees, and a tropical day is one in which the temperature is equal to or higher than 30 degrees. Normally, summer days occur before and after climatological and astronomical summer. Instrumental data on air temperature from the Belgrade Meteorological Observatory at Vračar for the period 1887-2025 were used for the analysis. In order to extend the series and better observe the change trend, corrected and reconstructed data for the period 1848-1887 from the Senjak measuring station in Belgrade were used. An analysis of extreme values ​​of daily, monthly, and annual air temperatures, the average date of the appearance of the first and last temperature with values ​​equal to or greater than 25, 30, and 35 degrees was performed. Trends in these temperature parameters were also examined. The analysis aimed to determine the most significant features of summer heat expressed through air temperature. The results show that extreme values ​​of summer temperatures are a common meteorological phenomenon for the temperate continental climate in Belgrade, that they have a slight increasing trend that is not significant, and that they have multi-decadal variability and periodicity that is mainly in accordance with the Atlantic Multi-decadal Oscillation (AMO). The analyzed data and results are presented in tabular and graphical form.

Electronic publishing of astronomical institutions and societies from Serbia from 2018 up to 2025 is described and analysed.

The paper presents the ranking researchers of Robotics in Serbia 2025. The ranking is presented primarily according to the researchers’ h-index 12 researchers with matching h-index are ranked by the number of citations. The h-index can be determined from the following online databases: Web of Science, Scopus, Google Scholar and the Publish or Perish program. The h-index, also known as the Hirsch index, is based on references. The ranking will be edited using the Google Scholar web database and the Publish or Perish program. Google Scholar is Google's scientific search engine, launched in 2004which displays the researcher's scientific publications, citations, h-index and i10-index. We also present the g-index and Orcid ID number of the researchers.