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Kolega Josip Strija dobitnik je nagrade Zaklade dr. Ljerka Markić Čučuković i nagrade Višnja Šeta
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Obiteljski, politički i duhovni profil kraljice Katarine Kosača-Kotromanić u tadašnjem povijesnom kontekstu
No full textRarely has a historical figure and personality from the territory of today's Bosnia and Herzegovina had such a rich, multifaceted, and almost supranational and supra-confessional prehistory, history, and post history as Queen Katarina Kosača Kotromanić did. Through her great-grandmother and great-grandfather, she traced her roots from the Nemanjić, Hrebljanović, Lazarević and Balšić families; through her grandparents, from the Balšić and Thopia families; through her father and mother, she came from the Kosača and Balšić families, and after she married, she became Queen Katarina Kosača-Ostojić-Kotromanić. In terms of social standing, Katarina was a princess, queen, queen mother, queen dowager, refugee, and a mother who was neither able nor allowed to see or ransom her two children who had been taken into Ottoman captivity. Her spiritual and religious identity was shaped by the unique Orthodox-Catholic and "Bosnian-Christian" context of fif-teenth-century Zeta, Bosnia and Hum. In her final years, Queen Katarina was elevated and en-riched spiritually by the Franciscan Order, through which she historically gained the Church's recognition as a Blessed One. The author will attempt to offer, always within the limits of his abilities, perceptions, knowledge, and understanding, a more complete profile of Queen Katarina within the historical context in which she was born, lived, ruled, suffered, and died. However, to achieve this, we need to re-examine three facets of Queen Katarina's profile: her family, political involvement, and spirituality. The spiritual profile will encompass, alongside her religious con-viction, her intellectual abilities and perspectives, multiple skills such as ars existendi, regendi et patiendi, as well as empathy for all that was good, beautiful, humane, philanthropic, and God-loving among Bosnian Christians, Catholics and the Orthodox in fifteenth-century medieval Bosnia and Hum.Rijetko je jedna povijesna osoba i ličnost s područja srednjovjekovnog Huma i Bosne, današnje Bosne i Hercegovine, imala tako bogatu, višestranu i skoro nadnacionalnu i nadkonfesionalnu pretpovijest, povijest i postpovijest kao kraljica Katarina Kosača-Kotromanić. Po prabaki i pra-djedu s majčine strane vukla je korijene iz obitelji Nemanjić-Lazarević-Balšić; po baki i djedu isto tako s majčine strane potjecala je iz albanske obitelji Thopia i zetskih Balšića, po majci i ocu potjecala je iz obitelji Balšić-Kosača i po udaji postala je kraljica Katarina Kosa-ča-Ostojić-Kotromanić. Po društvenom statusu Katarina je bila kneginja, kraljica, kraljica majka, kraljica udova i izbjeglica, majka kojoj nije bilo moguće još jednom vidjeti ili otkupiti svoje dvo-je djece iz osmanskog sužanjstva. Duhovno i religiozno potekla je iz katoličko-pravoslavnog oz-račja Zete i "bosansko-krstjanskog" miljea, koji su u 15. stoljeću mogli pružiti samo Zeta, Bosna i Hum. Na kraju svoga životnog puta kraljica Katarina bila je kao osoba i ličnost oplemenjena i o-bogaćena duhovnošću franjevačkog reda u kojem je tijekom povijesti stekla crkveno-pravni status blaženice. U ovom prilogu autor će pokušati ponuditi, uvijek u okviru svojih mogućnosti i percep-cija, znanja i spoznaja, cjelovitiju mozaik-sliku ili profil kraljice Katarine u historijskom kontek-stu u kojem je rođena, živjela, vladala, trpjela i umrla. No, da bismo stekli priželjkivanu moza-ik-sliku moramo osvježiti trostruki profil kraljice Katarine: obiteljski, politički i duhovni. U ovom prilogu duhovni profil uključuje osim vjerskog uvjerenja, intelektualnih sposobnosti i vidika, vi-šestruka umijeća, kao što su ars existendi, regendi et patiendi, kao i suosjećaj za sve ono što je bilo dobro, lijepo, humano, čovjekoljubno i bogoljubno u bosansko-humskom srednjovjekovlju 15. stoljeća među bosanskim kršćanima, katolicima i pravoslavnima
Interventional management of isolated aortic regurgitation: therapeutic options in the era of off-label transcatheter aortic valve implantation
No full textWhat have we learned from risk scores when selecting patients for transcatheter aortic valve implantation?
No full textThe Effect of Different Relative Humidity Conditions on Mechanical Properties of Historical Fir Wood Under the Influence of Natural Aging
No full textWood undergoes degradation and aging due to various physical and biological factors throughout its lifespan. Among these factors, environmental conditions such as relative humidity, temperature, rainfall, and UV radiation play a crucial role in the physical, chemical, and biological deterioration of wood. In this study, the effects of relative humidity on the density, bending strength, and compressive strength of wood were investigated. Fir beam elements from a traditional wooden structure, estimated to be approximately 150 years old, and freshly cut fir wood specimens were tested under relative humidity conditions of (30 ± 5) %, (65 ± 5) %, (85 ± 5) %, and (95 ± 5) % at a temperature of (20 ± 2) °C. A one-way ANOVA analysis was conducted to evaluate the effects and interactions of different relative humidity conditions on density, bending strength, and compressive strength for both naturally aged fir and freshly cut fir specimens. The results indicate that naturally aged fir wood exhibits greater stability in terms of density; however, strength loss is more pronounced under high relative humidity conditions. These findings suggest that natural aging has a significant impact on the preservation of wooden structures with historical and cultural value and contribute to a better understanding of such structures
Effect of Heat Treatment and Densification Temperature on Roughness, Hardness and Spring-back in Cylindrical Wood Densification
No full textIn this research, black pine (Pinus nigra Arnold) was shaped into cylindrical forms through a turning process and then underwent surface densification. The densification process was performed on a lathe using a spinning roller specifically designed and produced for this purpose. Heat-treated (3 hours at 160 °C) and untreated specimens (a large diameter of 33 mm and a small diameter of 21 mm) were used as test material. Two feed rates, low (0.05 mm/rev) and high (0.405 mm/rev), were used in the study. The lathe speed was kept constant at 800 rpm. During densification, the temperature of 600 °C was applied with a temperature blower. This was followed by rapid cooling in an environment of -18 °C. Surface roughness (Ra), hardness, and spring-back measurements were conducted on both densified and undensified areas of the cylindrical solid wood samples. After densification, the Ra value decreased for all specimens and densification conditions, and the radial and tangential hardness increased. The temperature applied during densification (600 °C hot air) did not have much effect on the spring-back in 33 mm diameter specimens, while the application of temperature in 21 mm diameter specimens reduced the spring-back. At low feed rates (0.05 mm/rev) in densification, lower spring-back was obtained
Effect of Catalysts and Density of Bamboo Wool Cement Board on Physical and Mechanical Properties
No full textBamboo wool cement board (BWCB) is an alternative to produce a new and sustainable material. Different types of catalysts are used for producing wood-cement composites that provide high properties. For this study, the effect of catalysts has been studied by using calcium chloride (CaCl2) and calcium hydroxide (Ca(OH)2). The BWCB samples from Dendrocalamus asper (Schult.F) of different density (0.60, 0.80 and 1.00 g/cm3) were produced by using portland cement as adhesive. The physical and mechanical properties of BWCB were investigated. It was found that BWCB gained a significant percentage of dimension stability due to the treatment by CaCl2 catalyst. The water absorption was reduced up to 10 %, whereas water content decreased significantly in BWCB with Ca(OH)2. Flexural strength increased in BWCB with CaCl2, and thermogravimetric analysis showed that thermal stability of BWCB increased with CaCl2. Scanning electron micrographs of impact fracture samples are taken to study the mechanism of bamboo/cement interface adhesion due to catalyst. Thus, it can be concluded that the CaCl2 might be a good catalyst for enhancing the properties of BWCB
The EU-27 Import of Selected Wood Fuels and Current Changes in Supplying
No full textThe paper presents the results of the analysis of the supply of wood pellets, wood chips, wood briquettes, sawdust and wood waste and scrap on the EU market from non-EU countries in the period 2010-2023. The aim of the study was to identify the most important non-EU countries for the supply of selected wood fuels to the EU market and the volume of imports. In addition, the value of imports of selected fuels from non-EU countries and from individual non-EU countries that are the largest suppliers to the EU market were analyzed. The study pays particular attention to the period 2022-2023, during which the EU initially reduced and then suspended imports of wood fuels from Russia and Belarus. The EU met part of its energy needs by importing wood fuels from non-EU countries during the period under review. The analyses carried out provided an insight into the EU’s energy dependence on the import of selected wood fuels from non-EU countries. Regression models were used in this paper to determine the impact of EU imports of wood pellets from non-EU countries on the consumption of wood pellets in the EU
