Logo

Publikacije (45603)

Nazad
A. Račić

Legacy is a legal institute created in Roman law. Its significance is based on the circumstance that the testator orders the heir or some other person (debtor of the legacy) to transfer to the legatee from the inheritance some property benefit which may consist of handing over one or more certain things or rights, paying a certain amount of money, releasing a debt , some doing, not doing or suffering in favor of the legatee, etc., i.e. in all that may be the subject of any other obligation, provided that it is possible, permissible and determinable or determinable. The paper presents the concept of legacy, its development through history, regulation by modern legislation with special reference to the subject of legacies and its special types. Also, the importance of the necessary part of the heir, the inclusion of the legacy in the necessary part and the institute of the privileged heir were especially emphasized.

Mustafa Baĝ, Selma Delalić, Nataša Tandir, Adem Olovčić

The history of Afghanistan is abundant in crises, coups, assassinations, political intrigues, as well as invasions and conquests. The last 40 years have been marked by long crises and conflicts: Soviet invasion 1979-1989, the civil war 1989-2001, the American invasion 2001-2021 with disastrous consequences for the country and the people. The invasion carried out in the name of ‘war on terrorism’, ‘bringing democracy’ and ‘freedom’, as a matter of fact, led to instability, turmoil, sectarian wars, deaths of tens of thousands of civilians and the formation of new terrorist organizations in the country, rather than peace and stability. War has become commonplace in Afghanistan. Once seen as the ‘shining star’ of Central Asia, Afghanistan is now known as the country exporting terrorism, drugs and refugees. The paper aims at showing causes and consequences of two decades long American presence in Afghanistan that left lasting imprint on Afghan society.

Marco Ceccarelli, Sunil K. Agrawal, Victor Glazunov, Alfonso Hernández, Juan Carlos, Jauregui Correa, V. Algin, B. Borovac et al.

Dejana Kasapović, F. Korać, F. Bikić

The paper presents an examination of the possibility of applying raspberry flower extract (Rubus idaeus L.) as a green inhibitor of general corrosion of copper in 3% NaCl. Raspberry flowers (Rubus idaeus L.) sort Polka were collected from the Moševac near Maglaj city, Bosnia and Herzegovina. Raspberry flower extract in ethanol was obtained by ultrasonic extraction. A significant content of polyphenol was found in the raspberry flower extract by UV/VIS spectrophotometry analysis. Results obtained by DC techniques (by the methods of Tafel extrapolation, potentiodynamic polarization and linear polarization) prove that the corrosion rate decreases in the presence of the raspberry flower extract. Tests performed by the method of electrochemical impedance spectroscopy prove that the tested extracts slow down the kinetics of the corrosion process, which is visible through the increase in resistance. The results of the conducted tests prove that in an aggressive medium, such as 3% NaCl solution, Polka raspberry flower extract can be used as an inhibitor of copper's corrosion.

S. Hamidović, Nikolina Vukelić, T. Gavrić, Jelena Jovičić-Petrović, I. Kljujev, Vera Karličić, B. Lalević

Agricultural production has benefited a lot from herbicides; however, the use of herbicides caused many environmental problems. Herbicide application can affect the biodiversity of an ecosystem by killing non-target organisms. Microorganisms in the soil are important factors for plant growth; they represent the biological factor of soil fertility. Herbicides can have a beneficial effect on the development of some microorganisms and a negative on others, leading to depletion of microbial diversity in soil. The objective of this work is to determine microbial activity in the soil and to isolate herbicide-resistant bacteria after the use of the "Stomp" herbicide. Agar plate method was used for the determination of microbial prevalence in the soil. The results showed an increase in the total number of bacteria, ammonifiers, fungi, and actinomycetes. Nine isolates, mostly Gram-positive spore-forming rods, showed an ability to grow in the mineral salt medium with different concentrations of "Stomp" herbicide. Isolates G1/1 and G1/2, showed high level of tolerance at the initial pendimethalin concentration of 25 mg/l. Those isolates have the potential to be used to decontaminate herbicide affected ecosystems.

Ivana Marić, I. Medjo, D. Marčić

The dark-red spider mite, Tetranychus ludeni Zacher (Acari: Tetranychidae), is a highly polyphagous species and an important pest of economic plants belonging to the families Cucurbitaceae, Malvaceae, Fabaceae and Solanaceae, and growing in tropical and subtropical regions. In the Western Palaearctic, its distribution reports have recently come mostly from the Mediterranean Basin, i.e. Portugal, Spain, Italy and Israel. In a survey conducted in Serbia 2019-2021 (comprising 159 sampling locations), T. ludeni was found at 89 locations on 27 plant species of the families Rosaceae (8), Solanaceae (6), Cucurbitaceae (4), Fabaceae (2), Amaranthaceae (2), Asteraceae (2), Apiaceae (1), Convolvulaceae (1) and Poaceae (1). The dark-red spider mite was found in mixed populations with other spider mites (mostly Tetranychus urticae and T. turkestani) in around half of the sampling locations. Heavy infestation and visible symptoms of injury were observed in several locations. Three Rosaceae plant species, plum (Prunus domestica), blackthorn (Prunus spinosa) and crab apple (Malus sylvestris) were its new hosts. Serbian records of T. ludeni from locations situated at latitudes between 42?N and 46?N were the northernmost distribution records of this species in the Western Palaearctic.

Marin Jovanovic

The COVID-19 pandemic has changed the way people live on the planet. The global economy suffered the biggest blow. The fashion industry has been forced to implement significant changes in their value chains. The subject of the research carried out in this work is to look at the specifics of marketing logistics activities that companies operating in the fashion industry were forced to implement in order to adapt to the business conditions that arose as a result of the COVID-19 pandemic. The aim of the work is to point out the most important specifics of marketing logistics in the fashion industry in the conditions of the COVID-19 pandemic, using the example of the Zara company, which effectively and quickly implemented numerous adjustments, which enabled it to reduce the negative impact of the crisis event.

Olivera Bukvić, M. Serdar

Carbonation is inevitable process during the service life of concrete structures, where CO2 causes decalcification of the calcium-bearing phases. These changes affect the durability of concrete and accelerate the corrosion of reinforcement. Alkali-activated materials (AAMs) are alternative, cement-free binders based on aluminosilicate rich precursor and alkaline activator. The interest in AAMs increased during the last century, due to the production process with low CO2 footprint comparing to Portland cement (PC) concrete, the possibility to use wide range of industrial by-products as precursors and comparable performance to PC concrete. Despite the extensive research in this field, the carbonation resistance of AAMs needs to be better understood, due to the differences and complexity of binder chemistry compared to PC concrete. The propagation of carbonation process will depend on chemical composition of the precursors and the type and dosage of activators. This paper presents the results of microstructural changes of three alkali-activated concrete mixes after exposure to accelerated carbonation. Ground granulated blast furnace slag was used as a precursor and sodium hydroxide and sodium silicate as activators. Three mixes have constant water to binder ratio and slag content, while alkali content and silica modulus were varied. The carbonation resistance was evaluated by testing carbonation depth after 7 and 28 days of exposure in carbonation chamber. Microstructural changes during carbonation were investigated by thermogravimetric analysis and mercury intrusion porosimetry.

I. Kancir, Vinko Radoš, M. Serdar

Alkali-activated materials (AAM) consist of a precursor, which is a source of aluminosilicates, and an alkali source. The precursors are usually waste materials from various industries such as fly ash from thermal power plants and slags from the metallurgical industry. Due to the increasing use of these materials in the cement industry and strategies for decommissioning coal-fired power plants, alternative raw materials from waste streams are increasingly being explored. One of these materials is waste from the aluminium industry, known as red mud. Due to its chemical composition, which is similar to that of other cementitious materials, red mud is suitable for use in the cement industry. It can also be used as a source of aluminosilicates in the synthesis of AAM. In this study, the corrosion behaviour of steel in chloride exposed AAMs based on fly ash and slag was investigated with and without the addition of red mud. During exposure of AAM to tap water and a 3.5 wt.% NaCl solution, the corrosion process was monitored by corrosion potential and polarisation resistance. AAM mixes containing red mud exhibited better corrosion resistivity and lower current density values compared to mixes without red mud, indicating a possible contribution of the red mud to chloride binding and improving the passivity of the steel.

M. Flegar, M. Serdar, D. Londono-Zuluaga, K. Scrivener

Recently, the cement industry has faced new challenges in addition to the environmental constraints of the last decade. The decline in availability and current inconsistent prices of common supplementary cementitious materials (SCMs), such as by-products from the iron industry or coal-fired power plants, have opened the search for more reliable materials. Research on cements containing calcined clays now serve as a possible solution to the forementioned problems. Clays containing the mineral kaolinite in sufficient quantities, when calcined and mixed with limestone powder, produce hydration products that can improve the strength and durability of concrete. In addition, the production of limestone calcined clay is reported to be less CO2 intensive, but this eco-efficient solution is viable only if the materials are locally available. For this reason, this study investigates the possibility of using natural clays from the Southeast European region (SEE) as cement replacements. A systematic experimental study was conducted on 18 different clays from 13 different deposits to determine the physical and mineralogical composition of the raw clays, their reactivity and mortar strength. The results were then related to the environmental contributions they might have in comparison with ordinary Portland cement in concrete.

Nema pronađenih rezultata, molimo da izmjenite uslove pretrage i pokušate ponovo!

Pretplatite se na novosti o BH Akademskom Imeniku

Ova stranica koristi kolačiće da bi vam pružila najbolje iskustvo

Saznaj više