bluuebunny/crossref_metadata_2025 huggingface dataset:
Determination of the rheological characteristics of some varieties of new rice for Africa (NERICA) relevant to its processing
Authors: Eze Paul , Oluka Ike , Eze Nkechi
Published: December 2022

The pasting properties of some NERICA (New Rice for Africa) varieties were determined using the rapid visco-analytical machine (RVA). The studied varieties include FARO 44, FARO 52, FARO 57, FARO 60, and FARO 61. The parameters assessed include the pasting temperature, peak time, peak or maximum viscosity, hot paste viscosity or trough, cold paste or final viscosity, breakdown, and setback. Results obtained indicated that the pasting characteristics of NERICA varieties studied exhibited good pasting behavior. Results showed that peak viscosity, final viscosity, hot paste viscosity, breakdown, and setback ranged from 30.83 to 85.17 RVU; 62.21 to 167.13 RVU; 25.83 to 76.88 RVU; and 5.01 to 8.29 RVU; and 31.38 to 81.96 RVU, respectively. There were significant effects of moisture content and temperature (p < 0.05) on all parameters studied. These generated results of the pasting characteristics of NERICA will be extremely useful in determining their suitability in food and other relevant industries.
Application of life cycle assessment in the packaging sector for the environmental assessment of polymer and biopolymer based materials: A review
Authors: Šuput Danijela , Popović Senka , Ugarković Jovana , Hromiš Nevena
Published: December 2022

Among many important requirements for packaging materials, environmental friendliness is a property that has become necessary for any material that needs to be competitive in the market. Life Cycle Analysis (LCA) is an analytical instrument that provides a framework for analyzing the impact of products and services on the environment, i.e. provides an understanding and the possibility of comparing different products. LCA studies the use of resources and the consequent emissions of pollutants on the environment during the entire life of a product from raw materials exploitation, through production, use and treatment at the end of the life cycle - recycling and final disposal. This paper will provide an overview of the LCA results of various commercial polymer packaging materials, as well as the results of LCAs of biopolymer materials. Although LCA faces the problem of data heterogeneity, since some studies focused on individual segments of the analysis, while some related to all aspects of the process, as well with the problem of interpreting heterogeneous results, because the output parameters were arbitrarily selected by the researcher, still it could be concluded that the available LCA studies and environmental assessments support further development of biobased polymers. When comparing biopolymer materials with commercial synthetic polymers, they have advantages - lower consumption of fossil fuels and lower emission rate of greenhouse gases from the whole life cycle.
Gas-lift wells optimization at the oil field "K"
Authors: Danilović Dušan , Ilić Marija , Crnogorac Miroslav , Tomić Lola
Published: December 2022

Optimization the operating parameters of a group of gas-lift wells in an oil field is a complex procedure. It is important to match parameters such as gas compression pressure, gas injection pressure, separation pressure at the gathering station, diameters of distribution pipelines, injection gas quantities as well as all individual operating parameters of the gas-lift wells. In this paper, a model for determining the optimum gas injection rate was created. Also, it is described the procedure for gas-lift well optimization at the oil filed "K" and its results. For all five wells, the optimum amount of injected gas and required number of gas-lift valves were determined.
Examination of the possibility of obtaining pyrite concentrate from the flotation tailings of the Lece mine
Authors: Lazić Predrag , Nikšić Đurica , Stojanović Dejan , Gavrilović Tamara
Published: December 2022

The Lece mine is characterized by the fact that it has gold and silver besides the main valuable components in the flotation concentrates of lead and zinc. Practically since the opening of the mine and flotation, research has been carried out with the aim of obtaining better technological indicators on all four valuable metals (lead, zinc, gold and silver), especially on gold. This paper represents a contribution to that research in order to increase the recovery of gold in flotation concentrates. Gold occurs in ore in several ways (native, with lead and zinc, with pyrite and quartz), which requires a complex technological scheme of gold valorization. Most of the gold is bound to galena and is valorized through lead concentrate. A smaller part of the gold is bound to zinc and is valorized through zinc concentrate. However, about 25% of the gold remains in tailings. Researchers ie. the authors of this paper tried to valorize part of the gold that is lost in the tailings by introducing a third pyrite concentrate with an increased gold content. The paper presents the results of laboratory experiments on the possibility of obtaining pyrite concentrate from the Lece tailings and a proposal for a technological scheme of the process.
Why anatomical terminology in Serbian languange?
Authors: Malobabić Slobodan
Published: December 2022

In article is discussed, from the viewpoint of anatomist, the absence of a "standard" anatomical terminology in Serbian language and the consequences of this fact. After a short overview of the history of the anatomical terminology in the world, the importance of standard anatomical terminology in communication and accurate data exchange in medicine are highlighted. Brief history and the difficulties in the development of anatomical terminology in the Serbian language are presented, and the important role of linguists in its preparation is emphasized. Finally, the reasons why it is necessary to establish a standard anatomical terminology in the Serbian language are given. These reasons are: 1. During the study of anatomy, students encounter new concepts for the first time, which are best explained to beginners in Serbian language; 2. in order to facilitate learning, it is important that texts in anatomy textbooks and from various branches of medicine do not contain different names for the same structures; 3. for entering data into the computers that are now widely used, it is very often necessary to enter the specific terms correctly; 4. general literacy and standardization of professional language should not be neglected, while preserving traditional expressions that patients should also understand; 5. creating a unique terminology avoids arbitrary creation and use of names; 6. finally, the future anatomical terminology in the Serbian language can also serve as an aid to translators in translating to and from Serbian.
Suconjunctval hemorrhages
Authors: Mirković Jana , Mrkić Isidora , Đokić Olivera
Published: December 2022

Introduction:Subconjunctival hemorrhage or suffusion is bleeding that occurs between the conjunctiva and episclera. It has a distinctive look and often frightens patients. The causes can be varied. Objective: The research was undertaken in order to determine the characteristics of patients within whomsubconjunctival hemorrhage occur. Methods: Retrospective analysis of patients of the Eye Department of the Health Center in KosovskaMitrovica, during 6 months. Results were analyzed SPSS ver 22, i GraphPad INSTAT software package. Results: The change was observed in 63 patients. Male gender was significantly more frequent. The age of patients was diverse-between 5 and 86 years. The causes and conditions associated with subconjunctival hemorrhages are usually eye trauma, in young,and arterial hypertension in elderly patients. Conclusion: Subconjunctival hemorrhage is a relatively common diagnosis in ophthalmology. The change is benign and spontaneously disappears during one to two weeks. It is important to note that the subconjunctival hemorrhage occur in patients with certain risk factors.
Piriformis: Sparing approach, is it better?
Authors: Stefan Korica , Glišović-Jovanović Ivana , Moljević Uroš , Tabaković Dejan , Virijević Dejan , Matić Slađana , Kadija Marko
Published: December 2022

Hip fractures as well as coxarthrosis are conditions that are becoming more common in everyday orthopedic practice. With the aging of the world's population, there is an increasing need for partial (HA) or total hip arthroplasty (THA). No elective procedure is as important to quality of life as total hip arthroplasty, and partial hip arthroplasty is a method of treatment in elder population who suffered fracture of the femoral neck. There are several hip approaches that can be used for arthroplasty. Hip dislocation is a serious complication after hip arthroplasty and occurs somewhat more frequently when the posterior hip approach is used. The aim of this study is to show that the piriformis sparing technique gives better results in terms of reducing the frequency of dislocations in the early postoperative period (one year). We operated od 249 patients, and after follow-up that lasted from 13 to 22 months we had four dislocations, three in patient with THA(0.021) and one after HA(0.009). Preservation of the piriformis tendon is a minor modification in the operative technique that can lead to a great benefit in the quality of treatment and a reduced risk of complications.
Intramedular fixation after breaking of the femoral plate
Authors: Korica Stefan , Virijević Dejan , Glišović-Jovanović Ivana , Tabaković Dejan , Kadija Marko
Published: December 2022

Any fracture of the femoral shaft presents a challenge to the orthopedic surgeon. Femoral fractures most often occur within polytrauma, by forces of high intensity as is the case with traffic accidents. There are two methods to treat with internal fracture fixation, intra and extra medullary fixation. Both treatments have their advantages and disadvantages and it is necessary to make a good preoperative plan. We present the case of a 23-year-old man who suffered a femoral shaft fracture as a driver in a car accident. He was initially surgically treated with orthopedic repositioning and internal, extramedullary fixation. After 18 months, bending of the osteosynthetic material and dislocation of the fragments with varus and recurvatum were verified. Oligotrophic pseudoarthrosis was also present. Reintervention and fixation with interlocking nail was performed. The weight bearing is allowed after two weeks. After 3 months, patient has full range of motion and there is no palpatory painful sensitivity. Intramedullary fixation is the method of choice for fractures of the femur, especially when there is no comminution and in cases of open fractures of the first and second degree. Rotation of fragments is locked, physical rehabilitation is faster and there is less risk of mal union.
Genetic variation and relationships among spring camelina (Camelina sativa, Brassicaceae) accessions of different origin
Authors: Nagl Nevena , Kuzmanović Boris , Zanetti Federica , Vollmann Johann , Marjanović-Jeromela Ana
Published: December 2022

Camelina sativa L. is one of the oldest crops of the Brassicaceae family, first domesticated in the region of south-eastern Europe. It has regained interest as a very promising alternative oilseed crop with broad adaptability, a wide range of tolerances to pests and diseases, and low-input requirements. The genetic diversity in spring camelina proved to be limited, so the identification and characterization of genetic variations in germplasm originating from different sources is considered very useful for development of efficient breeding programmes. The aim of the study was to use SSR markers in order to investigate genetic variation of twenty spring camelina accessions of different origin and estimate their genetic relatedness. Forty-five individual samples were taken from each accession and used for amplification of SSR markers P4C11, P6E4 and LIB19. Percentage of polymorphic loci, number of alleles, effective number of alleles, expected heterozygosity and Shannon's information index were used to estimate genetic variation. The accessions expressed different levels of genetic variation. The highest variability was found in cultivar Zavolzskij, breeding line CK2X-7, cultivar NS Zlatka and breeding line CK2X-9. The most uniform were cultivar Pernice, and population Maslomania. AMOVA (analysis of molecular variance) showed that 64% of the total genetic variation was attributed to variance within accessions and 36% to variance among them. IBased on genetic distance, accessions were divided in two clades, which both were further divided in two subclades. Genetic distance analysis indicated that there was overlapping in certain breeding programs and exchange of breeding germplasm.
Agroforestry: A review of its importance, problems and prospects in crop production
Authors: Orji Kalu , Mbah Emmanuel , Akpan Annah
Published: December 2022

Currently, the whole world is confronted with a geometric increase in the human population without a corresponding increase in the agricultural land resource to meet the human demands for food and clothing which are primarily sourced from agricultural industry. Therefore, it is needful for every country to search the importance of agroforestry and make haste to adopt it as it is the only option and panacea with which to combat the world ever increasing human population with limited and dwindling agricultural land resource. Agroforestry is more intentional, intensive, interactive and integrated than agriculture per se. Improved agro-forestry practice is eco-friendly, job creative and lucrative. It also promotes wider biodiversity and high yields of crops and livestock through proper soil management. Agroforestry is a multidisciplinary science encompassing agronomy, physiology, horticulture, apiculture, soil management, ecology, agrisilviculture, silvopasture, agrosilvopasture, and apisilvoculture have made it more comprehensive than other farming systems. The most glaring importance of agroforestry is centered on its ability to adapt to climate change, especially now it has become a case study in the world as its adverse effects on both living and non-living things cannot be neglected. So, this review paper is aimed at sensitizing and encouraging worldwide farmers and non-farmers to adopt the modern agro-forestry practices as improved means for promoting food security and checking deforestation with its associated adverse effects in the world. However, there are numerous challenges confronting the establishment of agroforestry and basically among them are - scarcity of land, improved seeds/seedlings, and conservative attitudes of the farmers.
Gene action for grain yield and its correlation with yield components in a diallel cross of winter wheat (Triticum aestivum L.)
Authors: Jocković Bojan , Mirosavljević Milan , Aćin Vladimir , Ilin Sonja , Živančev Dragan , Banjac Borislav , Dražić Tanja
Published: December 2022

Magnitude and type of gene actions in a specific population are the main criteria for the parents' selection that will develop the best recombinants after hybridization. Information about the genetic control of complex traits is useful for the further development of efficient breeding programs. In order to identify action of genes for grain yield plant-1 and its correlation with main yield components, incomplete diallel crossing was applied. The field trial was conducted at the experimental field of the Agricultural Advisory Service in southeastern Europe, during season 2012-2013. Mean values of F1 generation showed that crosses Apache × Prima had the highest value of grain yield plant-1 and Jackson × Balkan had the lowest. Common type of inheritance for grain yield plant-1 was over dominance. The ANOVA revealed that this trait was controlled by additive and non-additive effects. The best general combiner for grain yield plant-1 was Apache, and two crosses (Dragana × Jackson; Balaton × Nevesinjka) showed significant SCA effects. Components of genetic variance showed that dominant was more important than additive component, and the total number of dominant genes were in excess over the number of recessive genes in all parents. Furthermore, moderately low value of narrow sense heritability (h2=31.96%) was observed for grain yield plant-1 . Parent Sana contained maximum dominant genes, whereas parent Jackson had maximum recessive genes. Grain yield plant-1 was significantly correlated with tillers numbers plant-1 at genotypic level (rg=0.494). The results from this study might be helpful for creating new wheat cultivars with highyielding potential.
Inclusion of most appropriate crop wild relative populations and sites from Serbia in European In situ Network
Authors: Terzić Sreten , Tabaković Aleksandar , Savić-Ivanov Milena
Published: December 2022

Crop wild relative (CWR) conservation planning has started in many European countries with some of them having developed national CWR conservation strategies. The development of the European PGRFA In Situ Conservation Network has been implemented through the H2020 "Farmer's Pride" project but it did not have sufficient funds to include all European countries. Funding is required to ensure those countries currently uninvolved are able to identify populations and sites, and prepare applications to join the European in situ PGRFA conservation network. The project "Inclusion of CWR sites in European in situ network" was approved for financing under ECPGR Activity Grant Scheme (Phase X) First Call for proposals. The aim is to improve national capacities for in situ PGRFA management in Lithuania, Cyprus, Albania, Bulgaria, Slovenia, Slovakia, Latvia, Romania, Croatia and Serbia. The joint effort from the ECPGR Working Group "Wild Species Conservation in Genetic Reserves" and the "Farmer's Pride" Project contributed to the development of European strategy for CWR conservation, National and European MAWP selection and thus biodiversity conservation. Mountain Fruška gora has been proposed for inclusion as the MAWP site, while wild garlic - Allium ursinum and a sunflower CWR - Helianthus tuberosus have been proposed as the MAWP populations from Serbia for the European CWR in situ Network.
Hospital hazardous waste management: Treatment, storage and disposal
Authors: Sazan Mohammed , Salah Farhan
Published: December 2022

Rapid population growth, industrialization, and growth of demand for raw materials for industrial and medical production result in generating a huge amount of hazardous waste. Hazardous waste is identified by its toxicity, flammability, and radioactivity characteristics. Disposing hazardous waste into the natural environment has a significant impact on health and all living things in the environment. Nowadays, numerous hospitals and industrial places generate a large amount of hazardous waste. The objective of this study is to evaluate the management system of hazardous hospital waste in Erbil city. Additionally, the focus is on hazardous hospital waste management and characterizations and situation of the waste in Erbil city as well. The generation rate of hazardous wastes from hospitals in Erbil city was collected for 12 months from 2015 to 2020. The results showed that the highest amount of medical hazardous waste was generated in 2019. Moreover, the number of onsite incineration centres should be increased to reduce the cost of storage and transportation.
Sustainability of water supply management for Erbil City in the context of sustainable development agenda
Authors: Qarani Aziz , Sabah Mustafa
Published: December 2022

Conserving water and providing for the future generation is one of the most important principals established on the agenda concerning sustainable development goals. The aim of the paper is to evaluate the sustainability of the quantity and quality of water sources for Erbil City, as well as their safety and security based on the standard limitations. Therefore, the study computed the adapted scale of measuring water quantity and the demand of water and then evaluated the collected data from the water directorates related to both surface water and groundwater for the studied area. The study focused on the management of water supply and main factors that affected the lack of the sustainability. The next step was the planning of appropriate solution for those problems, such as avoiding drilling of illegal groundwater wells and managing water sector that made the poor water management as well. The use of additional surface water accomplished with the construction of extra water treatment plants was seen as an alternative to consuming groundwater. Reusing of processed sewage for various consumption and recharging of groundwater was considered as sustainable strategy and management for the water field in Erbil City.
Wastewater sludge characteristics, treatment techniques and energy production
Authors: Qarani Aziz , Sabah Mustafa
Published: December 2022

The research presents an overview on sludge types, characteristics, and methods of treatment. Additionally, using the sludge as an energy source for future plans was studied as well. The paper focused mainly on analyzing different sludge characteristics based on the previous studies. Wastewater sludge produced from the primary, secondary, and tertiary treatment processes was analyzed. It was mainly composed of many organic and inorganic materials. Some of the materials were removed by physical and other required chemical or biological processes. Most of the sludge was solid, semi-solid, and muddy with the harmful substances such as proteins, phenols, and hazardous materials. The study explained different methods of energy production as well. At the end, it was concluded that every type of sludge could provide energy and be a basic financial product for the selected area, and keep environment safely and healthy as well. The calculated quantity of dry sludge for 1,000,000 inhabitants in Erbil City, Kurdistan Region-Iraq, was 50,000 kg/d, which produced calorific value of 9.5 · 107 K. cal./day. Furthermore, the essential area for under drain sand bed area was 5,100 m2 .
Future of water recycling: A review of the direct potable water reuse
Authors: Aleksić Natalija , Šušteršič Vanja
Published: December 2022

Population growth, increasing water stress, and water scarcity have influenced the consideration of the reuse of treated wastewater as a possible alternative water source. Currently, recycled water is mainly used in industry, agriculture, and landscape irrigation, and now, in certain parts of the world, recycled water is also used as drinking water due to the limited freshwater resources. To meet the future water supply needs, the direct potable water reuse could be studied as an alternative source of drinking water. Direct potable reuse can enhance sustainability and water supply reliability. This paper analyzes direct potable water reuse as a circular principle in water sector and compares several successful cases of direct potable water reuse in Namibia, South Africa, Texas and New Mexico. Countries that use direct potable reuse are successful examples of using wastewater to form sustainable and reliable water supplies, which is of great significance for the future.
Social challenges in education for sustainable engineering future: Transformative guideline
Authors: Radosavljević Darko , Jelić Aleksandra , Božić Aleksandra , Slavković Ana , Popović Ana , Tadić Goran
Published: December 2022

Engineers are educated and trained to take the lead in sustainable development, tackling worldwide difficulties like depletion of natural resources, contamination, fast-growing populations, and ecological degradation. The relevance of government entities dealing with sustainable development is linked to the societal problem of future education. While all social-economical and/or technical variables play a role in determining the outlook in which each competence originates, novel-adaptive thinking, social intelligence, design mentality, and sense-making, social imagination (cross-sectoral fertilization), cognitive load management, virtual collaboration and networking, and novel media literacy suggest representing crucial drivers for the development of each ability. An extensive selection of continuing education programs enables graduates to improve subject-specific skills and extend their professional networks, with the objective of preparing motivated and highly-trained professionals for the job market. It is feasible to achieve the aim of a sustainable engineering future by recognizing the relevance of these criteria, comprehending, and adequately fulfilling them.
Municipal solid waste-to-energy in EU-27 towards a circular economy
Authors: Tsekeris Georgios , Anastassakis Georgios
Published: December 2022

The current work deals with the energy recovery, through incineration (R1) and biological treatment (R3), from municipal solid waste (MSW), within EU-27 in a Circular Economy approach. The EU legislation is analyzed in reference to the production and management of MSW for energy recovery along with the Waste-to-Energy processes (Incineration, Anaerobic Digestion and Composting, Pyrolysis, Gasification, Plasma technology, and Landfill gas). As reference years, 2015 and 2019 have been considered, which are the corresponding years of the first European plan towards a Circular Economy (COM - (2015) - 614) and the year before COM-(2020)-98. Also, the following data have been collected and elaborated from each Member State for the years 2015 and 2019: the total MSW generated, the total MSW used for energy recovery through incineration and biological treatment, the primary energy production from renewable and nonrenewable MSW, and the gross domestic energy consumption by MSW-generated energy. The main conclusion drawn from this work was the growing trend of the quantities of MSW used for energy recovery in EU-27 and the increasing trend of primary energy production from MSW that EU followed as aggregate. It was observed that for some Member States, energy followed increasing trend, of higher or lower rate, while for other showed descending trend. Despite the overall increasing trend of energy production from MSW, the rate is still relatively low, at least for some countries, and greater effort is required for their compliance with EU policy towards a Circular Economy approach.
Decision making tools in regional sanitary landfill location selection
Authors: Živković Bojana , Marjanović Jelisaveta , Đokić Jelena
Published: December 2022

The paper applies intelligent multicriteria analysis in order to rank the criteria in the process of site selection for the Regional Sanitary Landfill. The analysis was performed for 3 pre-selected sites that were selected based on available area, site access, potential preparation difficulties, groundwater occurrence, biodiversity, and proximity to urban area. These locations were selected as the most suitable for construction, both from the engineering and from the economic and environmental aspect. The analysis is the best example of the application of intelligent multicriteria analysis as a useful tool for environmental management in the decision-making process. The analysis was performed for three proposed locations of the Regional Sanitary Landfill: Kasilo, Kristal, and Savina Stena, in the municipalities of Zvecan and Leposavic. In order to achieve the most objective results, PROMETHEE methods were applied. Using these calculation methods, the following ranking list of locations for the Regional Sanitary Landfill was obtained according to their suitability: Savina Stena, Kasilo, and Kristal. This result can contribute to the decision-making process of determining the development strategy at the local and regional level.
Powerplant cooling flight tests
Authors: Ostojić Marina , Nikolić Tamara , Bogavac Nikola
Published: December 2022

Flight testing is necessary in the process of showing compliance of the airplane with specific design requirements. Utva Aviation Industry performed numerous flight tests of Sova airplane in order to prove its safety. Along with airplane design, structure, performance and equipment, it was necessary to show compliance of the powerplant. In this paper there is the analysis of the flight tests of the powerplant cooling in the most critical climbing case with maximum ambient atmospheric temperature for which approval is requested. Flight test report results are presented with defined minimum speed for these conditions proving our four-seater meets all requirements in its category.
Efficiency analysis of a fragmentation warhead against soft targets
Authors: Al Ameri , Elek Predrag
Published: December 2022

The efficiency of the weapon system has been usually studied by altering the guidance and control or aerodynamics of the missile. This research investigated methods of enhancing the efficiency of the weapon system against soft targets based on the fragmentation warhead design. Different warhead geometric configurations, initiation points, as well as premade fragment material and shapes have been studied to enhance overall weapon efficiency against soft target. The study considered the static fragment distribution and velocity as the base for the analysis. A new vulnerability code has been developed based on the mean area of effectiveness to prove the study using both simulations and field tests. There were significant improvements on the weapon efficiency by altering the warhead parameters. The simulated results showed good correspondence with the test results. The newly developed vulnerability code can be considered as an additional system engineering analysis tool for the calculations of weapon efficiency.
Fracture analysis of vehicle-mounted telescoping communications mast
Authors: Ilić Nada , Radović Ljubica , Mladenović Maja , Mandić Jovana , Pejović Vesna
Published: December 2022

In this paper a fractured connector plate for a telescoping antenna mast made of aluminum alloy EN-AW 2007 was examined. The goal of the investigation was to determine the cause of fracture which occurred during attempting to raise the antenna. Specimens taken from the mast were visually examined, and the fracture surface was examined using a scanning electron microscope. Chemical analysis, microstructural analysis, electrical conductivity measurements, tensile test and hardness test were performed in order to investigate the properties of the material. Fracture occurred fast and visual and fractographic examinations showed that there is no visible plastic deformation near the fracture surface, which are characteristics of a quasibrittle fracture. It was shown that the mechanical properties of the examined specimens do not satisfy the minimal values defined in the standard for this material. All conducted tests indicated that the material had not been heat treated and mechanically worked, so applied stress during handling/raising the antenna led to the rapid quasibrittle fracture.
Controlling and internal auditing at the Ministry of Defence
Authors: Đorić Igor , Ranisavljević Mihajlo , Milojević Marko
Published: December 2022

This paper discusses the theoretical foundations and definitions of controlling and internal auditing as tools that help the organisation's management in managing business compliance and business continuity, with the purpose of meeting the organisation's objectives, by assessing the effectiveness of risk management inside the organisation, as well as of control and management. Considering the contemporary trends in organisational management, where the management is faced with frequent crises that require rapid and comprehensive action and response to risks, where internal auditing information is focused on the past, there is a need to implement controlling in organisations to provide help to the management for the future. The aim of this paper is to highlight the need to introduce controlling at the Ministry of Defence in order to improve the work of this organisation and to provide strong support in preventing the existing problems and to develop innovative systems of solutions that go beyond mere financial reporting.
Characteristics of traditional food products as the basis of of consumption in hospitality
Authors: Stošić Tamara , Šmugović Stefan , Ivanović Velibor , Kalenjuk-Pivarski Bojana
Published: December 2022

Traditional food products are a significant segment of hospitality and tourism. They influence the creation of an image of a specific country or region in the minds of consumers. The subject of the work is traditional food products, but from the view of catering workers as consumers. Who choose these products and offer services to their users. We conducted research among employees in managerial positions in Srem and Severna Bačka (A. P. Vojvodina, Republic of Serbia) on 75 catering facilities. The obtained data were processed using descriptive statistics. The main task of the research was to investigate the attitudes of managerial staff towards the quality of traditional food products (market, production, and technical characteristics) that influence purchase choice. The main goal of this paper is to obtain data on which features are crucial in purchasing and whether there are differences between these two areas.
Evaluation of R600a blended with various quantities of CuO, Al2O3 and SiO2 nanoparticles
Authors: Senthilkumar Alagarsamy , Gnana Dhas , Athimoolam Anbarasu , Antony Annam
Published: December 2022

In this work three different nanoparticle concentrations of CuO, Al2O3, and SiO2 are dispersed in R600a vapour compression refrigeration system. The experiment was carried out using nanolubricant concentrations of 0g/L, 0.2g/L, and 0.4g/L having CuO, Al2O3, and SiO2 nanoparticles diffused in mineral oil with refrigerant mass fractions of 30, 40, and 60g. Nano lubricant was prepared at various concentrations using CuO, Al2O3, and SiO2 nanoparticles and refrigerant mass charges which were employed to perform tests. The system's performance was investigated with the variables such as coefficient of performance, refrigeration effect, compressor work, and pull down test. As a result of this study, it can be inferred that there is a significant enhancement in COP value of 2.7 by utilizing 0.4g/L SiO2 nanolubricant concentration with 40g of refrigerant. This inclusion of nanolubricant enhanced the refrigeration effect up to180W and resulted in a reduction of compressor work to 60W.The results obtained by using nanolubricants are compared with the system without nanolubricants. The pull down test with 0.4g/L SiO2 nanolubricant concentration quickly achieved low evaporator temperature compared to other conditions. The research was performed with various nanoparticles in R600a refrigeration system, the experiments were conducted with different nanoparticles by varying nanoparticle concentrations and refrigerant mass charges. From the experiments it is observed that SiO2 nanolubricant results in enhanced COP and refrigerant effect,which can be used as a better alternative to a pure mineral refrigeration system. Among three nanoparticles, SiO2 resulted in better performance and refrigerating effect with 56% less power consumption.
Sensory integration as a prerequisite for the development of academic skills in children
Authors: Petrović-Lazić Mirjana , Ilić-Savić Ivana , Babac Snežana
Published: December 2022

The readiness to start school includes the emotional and social maturity of the child. In order for a child to master the demands of the school program as easily as possible, a certain harmony is needed in the development of his abilities. The ability of sensory perception and the ability to integrate sensory stimuli specifically determine the development of reading and writing skills. The aim of this study is to analyze the ability to read and write in hypersensitive and hyposensitive types of sensory integration disorders, with special reference to the analysis of individualization measures in the work with these students in the school system. Disorder of sensory integration is expressed in two basic forms: increased sensitivity (hypersensitivity) and decreased sensitivity (hyposensitivity). In the school system, both forms of sensory integration disorders dominate. Hypersensitivity is manifested by rapid mental fatigue compared to other children. These children have difficulty reading and writing at the same time. They can read a word in many different ways without realizing it. Compared to the hypersensitive child who seems inert, the hyposensitive child is in constant motion, craving additional sensory stimuli in the classroom. These children have great problems with reading and writing figures and symbols such as tables, geometric shapes and musical symbols. Adjusting the teaching material for these children means increasing the font and font color before reading, dividing large-scale tasks into smaller units, using different types of writing pens, constantly emphasizing important units in the lesson, providing a summary of the lesson at the end of the lesson, and occasionally checking the legibility of the handwriting. In this way, students are provided with easier visual, auditory and tactile processing, and therefore more successful writing, reading and understanding of the read material. Thus, a student with sensory processing disorder can achieve academic success, but it is necessary to adapt the curriculum to the appropriate level of sensations.
Text, author, context: Comparative parallels of Shakespeare, Selimović, Hamlet, Nuruddin, Hamlet and Death and the Dervish
Authors: Terzić Marija
Published: December 2022

This paper examines the authors William Shakespeare and Meša Selimović, their works, the play Hamlet and the novel Death and the Dervish, their heroes, Hamlet and Ahmed Nuruddin, and their coping in the socio-political and social context in which they live, through the transposition motifs from the societies in which they lived among which the murder of an innocent person for political purposes is crucial. The dominating topic of death in both the play and the novel is taken from the lives of the authors which at first glance appear to be too far apart in many aspects, making it difficult to form a connection between them. The relationship that Nietzsche finds between elements such as the author, the text, and the context, which Slobodan Grubačić speaks about in his book, is the theoretical backbone on which the resemblance between the two said authors, their mentioned masterpieces, and their protagonists is built.
The dark past of slavery in American plantation houses: Website promotion and perceptions of visitors in TripAdvisor reviews
Authors: Cavalieri Silvia , Corrizzato Sara , Franceschi Valeria
Published: December 2022

The visual and linguistic representations of tourism destinations for promotional aims may be affected by their primary function of acquiring new visitors; for this reason, they are not always "value-free expressions of a place's identity" (Pritchard & Morgan, 2001, p. 177). The concept of dark tourism seems to perfectly mirror the connection between terminological choices and culturally-bound constraints. It has been acknowledged that several dark tourism sites tend to valorise (or hide) events associated with tragedy and death, attracting tourists' interest for their (non)macabre details at the expense of historical objectivity. This is the case of plantation houses in the US, whose narrative on slavery has often been "whitewashed" and minimized (e.g., Harnay, 2022; Butler, 2001; Eichstedt & Small, 2002). This study aims at investigating how visitors to popular plantation destinations in the US perceive and evaluate the presentation of the experience of slavery in these sites vis-à-vis what is presented on the plantation websites. The analysis is therefore twofold: first, a qualitative multimodal study of the content included in the websites of the plantations will shed light on whether the websites include information on the role of slave labour in the plantations, and secondly, a corpus-assisted investigation of the visitors' reviews posted on TripAdvisor will attempt to clarify how visitors perceive the plantations as a tourist location, and the importance they place on receiving honest information about the brutality of slavery during their visits. The mixed-methods approach has allowed researchers to delve into this phenomenon from two opposite, but intertwined, perspectives: one driven by experts officially promoting the visit through the websites and the other offered by visitors sharing their personal experiences and feelings.
Destruction of Serbian churches and monasteries in Kosovo and Metohija from 1999 to 2022: Cultural-geographical determinants
Authors: Medojević Jovo , Milosavljević Saša
Published: December 2022

The autonomous province of Kosovo and Metohija is a historical part of Old Serbia and the central area of the medieval Serbian state of the Nemanjić family, which makes it a historical-geographical and cultural-geographical area of enormous importance for the Republic of Serbia. At the same time, the Serbian Orthodox Church throughout its entire spiritual, historical and cultural existence in Kosovo and Metohija shares the fate of the Serbian people. The destruction of Serbian religious monuments in Kosovo and Metohija has been happening for centuries, so the continuity of the destruction of Serbian churches and monasteries can be traced from the 17th century to the present day. During the NATO intervention on the Federal Republic of Yugoslavia and on the territory of the Autonomous Province of Kosovo and Metohija, which lasted from March 24 to June 9, 1999, Albanian extremists devastated and demolished the largest number of Serbian sacral monuments. At the same time, the period at the end of the 20th century and the first two decades of the 21st century was marked by the cruel persecution of Serbs from Kosovo and Metohija and the devastation of the entire Serbian cultural heritage. By applying the methodology of cultural-geographic research and field research, the goal of the paper is to confirm and document all known cases of devastation and destruction of Serbian sacral heritage in Kosovo and Metohija from 1999 to 2022, which were committed by the Albanian extremists.
Reliability and validity of the instrument assessing the effectiveness of online and regular classroom lessons
Authors: Ranđelović Dušan , Lazarević Dragana , Pavićević Miljana
Published: December 2022

In order to propose a new instrument for evaluating the efficiency of teaching process, this paper presents the recently designed tool called Online and Classroom Teaching Efficiency Scales - OCTES. It strives to examine reliability and validity of the OCTES scale on a sample of students (N1=100) and teachers (N2=100). The instrument used to evaluate the effectiveness of three aspects of teaching in two teaching scenarios-classroom teaching and online teaching-includes 3 scales related to cognitive, conative, and affective aspects of teaching. The results indicated that all scales have high reliability (over .80 Cronbach's alpha) on both the teacher subsample and the student subsample. The construct validity was verified by exploratory factor analysis. The results have confirmed that one-factor solutions are acceptable for all measured scales, with the explained variation ranging from 41.13% during the assessment of the affective component of classroom teaching, to 64% during the assessment of conative aspects of classroom teaching. It can be inferred that the final version of the 30-item scale showed good psychometric properties reflected in high reliability of all assessed aspects of teaching efficiency and solid validity seen through one-factor structure of all scales.
Commencing the commission of a criminal act in the European-continental and the Anglo-Saxon criminal law
Authors: Vasiljević Dragana
Published: December 2022

A clear and precise definition of the activity that marks the beginning of the commission of a criminal act (Fr. commencemnt d'exécution), as the boundary between the non-punishable and the punishable stage in the commision of a crime, is of great importance for criminal law. The contemporary criminal legislation and criminal law doctrine are guided by different criteria in determining this boundary. In the European-continental legal system, the definition of criminal attempt is found in criminal law theories, while the criminal legislation in the Anglo-Saxon criminal justice system rely on appropriate tests in establishing the causal link. In this article, the author analyzes the theoretical and legislative solutions in the European-continental and the Anglo-Saxon criminal law on the activity that marks the beginning of the commission of a criminal offense and its delimitation from the preparatory stage.
Remedies available to the seller in case of the buyer's breach of contract on International sale of goods
Authors: Zdravković Uroš
Published: December 2022

The legal remedies available to a seller in case of a buyer's breach of contract on international sale of goods are predominantly contained in Articles 61-65 of the UN Convention on Contracts for the International Sale of Goods (CISG). Article 62 of the CISG entitles the seller to require from the buyer to perform the obligations. Under Article 63 of the CISG, the seller may fix an additional period of time of reasonable length for the performance of the buyer's obligations. Article 64 defines the conditions under which the seller is entitled to declare the contract avoided. The first situation in which the seller can avoid the contract is where the buyer has committed a fundamental breach of contract. Article 64 also provides that the seller can avoid the contract if the buyer has not paid the price or taken delivery of the goods within the additional period of time fixed by the seller under Article 63(1) of the CISG. In case the buyer has paid the price, the seller loses the right to avoid the contract if it does not declare avoidance within the periods stated in Article 64(2). In cases of late performance, the seller loses the right to declare the contract avoided unless it does so before becoming aware that performance has been rendered. In regard to any breach other than late performance, there is a distinction according to whether or not the seller has fixed an additional period for performance in accordance with Article 63 (1). In the absence of an additional period for performance, the seller loses the right to declare the contract avoided unless it declares avoidance within a reasonable time after the seller knew or ought to have known of the breach. In case the seller has fixed an additional period of time for performance by the buyer, the seller loses the right to declare the contract avoided unless it declares avoidance within a reasonable time after the expiry of the additional period fixed by the seller or after the buyer has declared that it will not perform his obligations within such an additional period. Finally, under Article 65 of the CSIG, if the buyer fails to make the specification of the goods, either on the date agreed upon or within a reasonable time after receipt of a request from the seller, the seller may, without prejudice to any other rights he may have, make the specification himself in accordance with the requirements of the buyer that may be known to him.