Ancient Roman concrete constitutes many ancient structures that remain standing; however, little is known about how it has remained durable. Here, we investigate the mortars used in ancient water bearing infrastructure such as aqueducts, cisterns, and baths. In these structures, crushed ceramics are used as a pozzolanic additive on surfaces in continuous or frequent contact with water. The ceramic-lime mortars are probed using a multi-scale characterization approach including SEM-EDS and Raman microspectroscopy. The analysis shows the role of ceramics within these structures as a source of aluminosilicates, mapping the presence of both pozzolanic and post-pozzolanic phases. A hybrid binder consisting of cementitious hydrates and calcite is mapped at the interface of the ceramics and evidence of post-pozzolanic densification of pores and cracks is observed. Comparison across structures shows that material selection and chemistry benefit the infrastructure applications. Understanding these ancient materials provides inspiration for new, durable infrastructure materials.

This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: diatom alga Stauroneis neofossilis, parasitic fungus Anthracoidea arenariae, horsetail Equisetum hyemale, liverwort Harpanthus flotovianus, mosses Fissidens exilis and Rhizomnium punctatum, monocots Epipactis helleborine subsp. orbicularis, Himantoglossum calcaratum subsp. rumelicum and Schoenus nigricans and dicots Calluna vulgaris, Mahonia aquifolium and Willemetia stipitata subsp. albanica.

Existing standards require welded joints with full penetration. It is considered that welded joints with complete penetration minimize the stress concentration in the root passage. However, there are numerous situations in the industry, in which the load-bearing capacity of the welded joint with partial penetration is satisfactory. If the tests of partially penetrated welds show satisfactory load capacity, the benefits compared to fully penetrated welds are reflected in lower costs, ie less time is required to prepare the joint, less additional material is needed, ie shorter time is required to make the welded joint. The paper presents the testing of butt welded joints of structural steel S355N, with partial penetration, achieved by the MAG welding in the overhead position (PD) in the protection of the gas mixture. The samples were welded with different welding parameters and with different joint preparation, and the tests were performed by non destructive methods (visual inspection, testing with penetrants and magnetic particles) and destructive methods - tension and bending tests, Vickers hardness testing.

Physical Culture, as a part of general culture, can be defined as a human activity, which, through its knowledge ABOUT and FOR physical exercise within its areas (physical education, sports and physical recreation), allows the transformation of personality from real to possible. Physical Education, as one of the areas of Physical Culture, is therefore a very important educational link. It is particularly important in anera characterized by fast technological advances and technicalism that is rapidly introducing people to virtual reality. Hence, we emphasize that Physical Education, with its knowledge ABOUT and FOR physical exercise, builds the basis for a healthy, active and long life in young people. This is possible due to the fact that Physical Education, based on the Theory of Theoanthropocentrism, sees physical exercise as a beneficial body activity necessary for man and stems from the relationship to a man as a person, not an individual. The increasingly present virtual reality is in complete harmony with the sedentary culture, increasingly dominant not only in Western civilization. This undoubtedly leads to "active" hypokinesia, the root of many disturbing changes and health problems. Anthropological research conducted in Serbia and AP Vojvodina have confirmed that the number of people who regularly engage in physical exercise is decreasing. That is why we point out the importance of Physical Education, which, with its knowledge of how and why to exercise, builds the awareness of the necessity for physical exercise, as well as of the possibility of seeing every physical activity as physical exercise.

Physical movement - an exercise, which springs from our being and returns to it as a gracious food, with its agon, that desire to compete with others but also with itself, helps a human being to become and remain a personality. This statement is confirmed by people who marked the 19th and 20th century. By their example and work, they not only testified the benefits of physical exercise, but also encouraged the formation of theoanthropocentrism, one of the theories of physical culture, at the end of the 20th century. Metropolitan Hadzi Sava Kosanovic, Bishop Rade, Bishop Nikolaj of Zica, Vasa Pelagic, Cedomir Milic, are just some of those who testified and encouraged others by their example not to forget about physical exercise and their body. Because in the union of body and soul sanctified by the Holy Spirit, that trinity survives only if all and each of them is taken care of, in specific. With examples of their attitude towards physical exercise and competition, which they only pointed out or others wrote about, we will lighten up a significant part of the history of physical culture.

According to both theoretical and empirical research results, this paper has the aim to determine, the extent to which the current accounting regulatory framework (IFRS 3 and IAS 36) offers an adequate basis for correct valuation of goodwill. We have researched all the available critical reviews of the accounting treatment of goodwill and the quality of applying accounting regulations onto expression of the goodwill position in BH companies’ practices. The empirical research was conducted on all the companies in the Federation of Bosnia and Herzegovina (FBiH), which recorded goodwill in their balance sheets in the period from 2013 to 2018. The research results have shown a high level of subjectivity in the process of determining the value of goodwill, and great discrepancies in adhering to the accounting regulations in the part of additional valuation and expression of goodwill value in financial reports. This resulted in the fact that the share of companies in FBiH which express decreased values of goodwill is far greater than the share of companies in the European union (EU). The main contribution of this paper is the fact that this is the first comprehensive research on evaluation of goodwill in FBiH companies in comparison to the situation in the EU. Also, it confirms the Agency Theory and shows great subjectivity in evaluation which results in an unjustified expression of a higher operative success in financial reports.