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Encapsulation of clove bud essential oil (Syzygium aromaticum L.) and biology activity of formulations
No full textRad na disertaciji bio je fokusiran na sintezi novih, ekološki prihvatljivih formulacija zasnovanih na kapsulaciji etarskog ulja dobijenog iz pupoljaka karanfilića (CEO), sa ciljem poboljšanja rastvorljivosti ulja u vodi i biološke efikasnosti produženim oslobaĊanjem ulja. Kao nosaĉi u formulacijama izabrani su zeoliti (sintetiĉki i prirodni) i želatin. PredviĊeno je da se tri novodizajnirane formulacije u vidu koncentrata za emulziju (EC) (nazvane u ovom radu kao F-CSZ, F-CNZ i F-CG) koriste u poljoprivredi u oblasti zaštite bilja, za suzbijanje štetoĉina i bolesti. Zbog toga je ispitana biološka aktivnost na odabranim štetoĉinama i patogenima, koji se mogu naći na otvorenom polju kao i u uslovima skladišta: (i) krompirov moljac Phthorimaea operculella, kao jedna od najvećih štetoĉina useva iz porodice Solanaceae, (ii) patogena gljiva Botritis cinerea, prouzrokovaĉ sive truleži, koja napada voćne vrste (jabuĉasto, koštiĉavo), jagodiĉasto voće, vinovu lozu i nekoliko povrtarskih vrsta, i (iii) patogene bakterije, prouzrokovaĉ bakterijske vlažne truleži Pectobacterium carotovorum subsp. i Dickeya dianthicola, koje zaražavaju širok spektar biljnih kultura. Svi ovi štetni organizmi širokog spektra domaćina su rasprostranjeni u Srbiji i poznato je da izazivaju velike gubitke u prinosu na zaraženim domaćinima. Novodizajnirane CEO formulacije su pokazale produženo delovanje na smrtnost P. operculela tokom izlaganja insekata koncentraciji emulzije od 40 μL L- 1 vazduha. Smrtnost se postepeno smanjivala sa verovatnoćom od 100% nakon prva 24 h na 50% nakon 5 dana za F-CSZ ili nakon 4 dana za formulacije F-CNZ i F-CG. Formulacija sa beleženom najvećom efikasnošću F-CSZ omogućava aktivnost tokom 14 dana izlaganja, dok je efekat druge dve formulacije trajao 10 dana. Sve tri formulacije su pokazale visok fungicidni efekat u suzbijanju B. cinerea, prevencijom infekcije i razvoja bolesti. Najbolja efikasnost je dokazana korišćenjem F- CSZ (sintetiĉki zeolit kao nosaĉ) koji pokazuje 100% efikasnost kada se koristi ĉak i pri najnižoj testiranoj koncentraciji aktivnog CEO (1%). Rezultati in vitro testiranja na patogene prouzrokovaĉe vlažne truleži su pokazali da MIC vrednost formulacija CEO iznosi 1% aktivnog CEO. Istraživanjem u ovoj disertaciji predstavljena je nova perspektiva upotrebe etarskih ulja kao alternativnog i ekološki prihvatljivog biopesticida. Formulacije CEO mogu se komercijalno koristiti kao fumiganti ili zaštitni premazi za produženje roka trajanja uskladištenih proizvoda ili na tržištu svežeg voća ili povrća
Reducing waste and enhancing sustainability: the role of 3D printing in circular economy
No full text3D printing, or additive manufacturing, represents a piv-
otal technology for advancing the principles of a circular economy.
This study examines the multifaceted contributions of 3D printing to
resource efficiency, product longevity, localized production, sustain-
able design, and economic circularity. By employing layer-by-layer
construction, 3D printing significantly reduces material waste com-
pared to traditional subtractive manufacturing methods. The capabil-
ity to utilize recycled materials and produce components on demand
extends product lifespans and facilitates repairs, thereby minimizing
waste and conserving resources. Furthermore, localized manufactur-
ing reduces transportation emissions and supports local economies,
enhancing supply chain resilience.3D štampanje, ili aditivna proizvodnja, predstavlja ključnu tehnologiju za unapređenje principa cirkularne ekonomije. Ova studija ispituje višestruke doprinose 3D štampanja u pogledu efikasnosti resursa, dugovečnosti proizvoda, lokalizovane proizvodnje, održivog dizajna i ekonomske cirkularnosti. Korišćenjem konstrukcije sloj po sloj, 3D štampanje značajno smanjuje otpad materijala u poređenju sa tradicionalnim metodama oduzimanja materijala. Mogućnost upotrebe recikliranih materijala i proizvodnje komponenti po potrebi produžava vek trajanja proizvoda i olakšava popravke, čime se smanjuje otpad i čuvaju resursi. Osim toga, lokalizovana proizvodnja smanjuje emisije iz transporta i podržava lokalne ekonomije, poboljšavajući otpornost lanca snabdevanja. Sve u svemu, 3D štampanje oslikava osnovne principe cirkularne ekonomije, promovišući ekološku održivost i ekonomsku održivost kroz proizvodnju koja štedi resurse, produžene cikluse životnog veka proizvoda i inovativne dizajn i poslovne strategije.Urednici: prof. dr Andrea Andrejević Panić, prof. dr Jelena Ješić i prof. dr Simonida Vukadinović; tehnički urednici: prof. dr Simonida Vukadinović, prof. dr Jelena Ješić, prof. dr Andrea Andrejević Panić i doc. dr Zoran Brlja
Tranzicija AP Vojvodine ka cirkularnoj privredi : vrednovanje nivoa znanja i strateških inputa za eko-inovacije
No full textTranzicija AP Vojvodine ka cirkularnoj ekonomiji predstav-
lja kritičan pomak od tradicionalnog linearnog ekonomskog modela,
sa ciljem povećanja održivosti i efikasnosti resursa. Rad se fokusira na
procenu trenutnog nivoa znanja o principima cirkularne ekonomi-
je i eko-inovacija među zainteresovanim stranama u AP Vojvodini i
identifikaciju strateških inputa neophodnih za formulisanje efikasne
strategije tranzicije. Kroz sveobuhvatne ankete i intervjue sa ključnim
igračima u industriji, kreatorima politike i akademskim krugovima,
mi procenjujemo svest, razumevanje i spremnost za implementaciju
praksi cirkularne ekonomije i eko-inovativnih rešenja. Nalazi otkri-
vaju značajne praznine u znanju i naglašavaju potrebu za ciljanim
obrazovnim inicijativama i političkim intervencijama za promovisa-
nje eko-inovacija. Ove inovacije, koje uključuju nove materijale, teh-
nologije i poslovne modele, ključne su za minimiziranje uticaja na
životnu sredinu i povećanje ekonomske održivosti cirkularnih praksi. Analiza pruža vredan uvid u specifične ekonomske, ekološke i društve-
ne uslove AP Vojvodine, olakšavajući razvoj prilagođenog strateškog
okvira koji integriše eko-inovacije. Ovaj okvir će poslužiti kao puto-
kaz za zainteresovane strane, obezbeđujući kohezivan i koordinisan
pristup unapređenju i cirkularne ekonomije i eko-inovacija u regio-
nu. Rezultati ovog istraživanja su ključni za usmeravanje održivog ra-
zvoja AP Vojvodine, podsticanje inovacija i promovisanje dugoročne
ekonomske otpornosti. Prihvatanjem principa cirkularne ekonomije i
eko-inovacija, AP Vojvodina može ostvariti održiviju i prosperitetniju
budućnost. Rad je deo projekta, koji Univerzitet Educons realizuje u
saradnji sa Pokrajinskim sekretarijatom za nauku i tehnološki razvoj
Autonomne pokrajine Vojvodine pod nazivom: Tranzicija AP Vojvo-
dine ka cirkularnoj ekonomiji: analiza stepena poznavanja i definisanje
inputa za strateško koncipiranje. Ovaj rad ističe značaj koncepta cirku-
larne ekonomije i predstavlja potencijalne buduće pravce istraživanja
i načina koncipiranja strateških inputa za povećanje broja, kvaliteta i
efikasnosti eko-inovacija u AP Vojvodini.The transition of AP Vojvodina towards a circular economy represents a critical shift from the traditional linear economic model, aiming to enhance sustainability and resource efficiency. This
paper focuses on assessing the current level of knowledge about circular economy principles and eco-innovations among stakeholders in AP Vojvodina, and identifying the strategic inputs necessary for formulating an effective transition strategy. Through comprehensive surveys and
interviews with key industry players, policymakers, and academia, we evaluate the awareness, understanding, and implementation readiness of circular economy practices and eco-innovative solutions. The findings reveal significant knowledge gaps and highlight the need for targeted
educational initiatives and policy interventions to promote eco-innovations. These innovations, which include new materials, technologies, and business models, are crucial for minimizing environmental impact and enhancing the economic viability of circular practices. The analysis provides valuable insights into the specific economic, environmental, and social conditions of AP Vojvodina, facilitating the development of a tailored strategic framework that integrates eco-innovations. This framework will serve as a roadmap for stakeholders, ensuring a cohesive
and coordinated approach to advancing both the circular economy and eco-innovations in the region. The outcomes of this research are pivotal for guiding AP Vojvodina’s sustainable development, fostering innovation, and promoting long-term economic resilience. Through embracing circular economy principles and eco-innovations, AP Vojvodina can achieve a more sustainable and prosperous future.Urednici: prof. dr Andrea Andrejević Panić, prof. dr Jelena Ješić i prof. dr Simonida Vukadinović; tehnički urednici: prof. dr Simonida Vukadinović, prof. dr Jelena Ješić, prof. dr Andrea Andrejević Panić i doc. dr Zoran Brlja
The presentation of the application of game theory to historical events
No full textThe modern world is characterized by a multitude of problems that contain conflicts of different interests. The importance and frequency of the problem caused the need to develop techniques for managing conflict situations. Accordingly, game theory has developed as a special direction and methodology used in the study, analysis and resolution of conflict situations. This theoretical direction deals with the phenomenon of making rational decisions in conflict situations and is considered a specific type of mathematical analysis of conflicts. It is a mathematical discipline that deals with the formalization of the decision-making process in situations where multiple decision-making subjects participate, who have conflicting interests. Each of the opposing sides has several strategies at their disposal. The goal is to determine the strategy that is best for each side in a conflict situation.The use of game theory provides a clearer representation of possible alternative solutions to a conflict situation.The paper shows the application of game theory to certain historical events. Through the petition payment matrix, solutions to the Battle of the Bismarck Sea, the Cuban Missile Crisis and the arms race are possible. It should be noted that for the analysis of a mathematical model, game theory requires quantifying and measuring something that is immeasurable, such as motives, outcomes, preferences, etc., when it comes to different (some) conflict situations. During the selection of the strategy, only the most important decision-making factors are included in the consideration, and the others are neglected, which can lead to the absence of a wider picture that could influence the final choice of strategy. Game theory is widely applicable, but the high degree of abstraction greatly limits its practical value
Legal framework of emergency situations in the Autonomous Province of Vojvodinа
No full textEmergency situations are a reality in every state
and society, including the Republic of Serbia and its
Autonomous Province of Vojvodina. Whether triggered by
natural disasters or human actions, such crises result in
significant loss of life, severe environmental damage, and
substantial material losses. Defining an adequate legal
framework for emergency situations is a key element in
managing crises and protecting the population from various
threats, including natural disasters, technological failures,
epidemics, and various social conflicts. The focus of this paper
is on emergency situations, more precisely, the analysis of legal
regulations related to crisis management in the territory of the
Autonomous Province of Vojvodina, with an emphasis on the
Law on Disaster Risk Reduction and Emergency Management.
The study employs the positive legal method and the logical
methods of induction and deduction for analysis.Vanredne situacije predstavljaju element svake države i društva, pa tako i Republike Srbije i njene Autonomne pokrajine Vojvodine. Bilo da su izazvane prirodnim katastrofama ili ljudskim delovanjima, ovakve krize dovode do značajnog gubitka ljudskih života, ozbiljne štete na životnoj sredini i velikih materijalnih gubitaka. Definisanje adekvatnog pravnog okvira vanrednih situacija predstavlja ključni element upravljanja vanrednim situacijama i zaštiti stanovništva od različitih pretnji, uključujući prirodne katastrofe, tehnološke havarije, epidemije i različite društvene sukobe. Predmet istraživanja u ovom radu jesu vanredne situacije, preciznije, analiza pravnih propisa koji se odnose na vanerdne situacije na teritoriji Autonomne pokrajine Vojvodine, sa akcentom na Zakon o smanjenju rizika od katastrofa i upravljanju vanrednim situacijama. U analizi su korišćene pozitivno-pravne metode i logički metodi indukcije i dedukcije
Strategic options for reducing microplastics
No full textThe goal of the strategic roadmap is to stimulate the transformation of social and economic systems through accumulated scientific and technological knowledge. This will trigger the development of a national strategy for microplastics based on scientific excellence, policy and industry readiness for environmentally friendly lifestyles to address the growing amount of microplastics in the environment. In order to achieve the goal of the proposed initiative on a national strategy for microplastics, the
following specific objectives have been established: Pollution prevention through the improvement of a sustainable plastic waste management system and more efficient use of waste in the circular economy; Developing a circular economy based on industrial symbiosis and increasing resource efficiency, Identifying and advancing product alternatives; Develop a monitoring program for microplastics, Define risk thresholds and develop a risk assessment framework; Sources and pathways prioritization; Evaluating new solutions to mitigate microplastics contamination; Improvement of the environmental protection financing system; Strengthened capacities of institutions for reducing microplastics and harmonized regulations with EU regulations; Conduct consumer education and awareness-raising campaigns
Multimodalna semiotička analiza konstrukcije i dekonstrukcije rodnih stereotipa u crtanim filmovima za decu: Patrolne šape
No full textTemom i predmetom istraživanja ovaj rad pripada polju sociolingvistike kao grane lingvistike koja se bavi proučavanjem odnosa jezika i društva u najširem smislu te reči. Konkretno, predmet istraživanja ovog rada spada u okvir rodnih studija i bavi se odnosom jezika i roda. Dosadašnja istraživanja su pokazala da je odnos jezika i roda dvosmeran u smislu da jezik utiče na konstrukciju rodnih ideologija u društvu ali i obrnuto, vladajuće rodne ideologije utiču na jezik. U ovom radu se ova vrsta odnosa istražuje u multimodalnom diskursu definisanom kroz prizmu Teorije socijalne semiotike. Diskurs se u okviru Teorije socijalne semiotike posmatra kao društveni proces unutar koga se značenje kreira kroz interakciju različitih modaliteta. Interakcija jezika i slike kao modaliteta koji kreiraju značenje je u fokusu ovog istraživanja.
Polazeći od takvih teorijskih osnova autorka u ovom radu primenjuje model multimodalne semiotičke analize prilagođen analizi rodnih stereotipa. Ovakvim metodološkim sredstvom analizira rodne stereotipe u okviru crtanog filma za decu kao multimodalnog diskursa. Crtani film Patrolne šape je izabran kao najgledaniji na osnovu ankete o gledanosti među decom predškolskog uzrasta. Svrha ove analize jeste ukazivanje kako na konstrukciju tako i na dekonstrukciju rodnih stereotipa koji su deo vladajućih rodnih ideologija u društvu. Očekuje se da će rezultati ove analize dati jasan uvid u to kako su vladajuće rodne ideologije prikazane u crtanim filmovima namenjenim deci predškolskog uzrasta te samim tim imati značajan uticaj na dalja istraživanja u okviru sociolingvistike i rodnih studija
Vision of education for future teachers in the era of artificial intelligence - challenges of a new reality
No full textThe question that arises for everyone working with children and youth is how ready we are to respond to the challenges in education posed by artificial intelligence. It is necessary to consider the risks, as well as the opportunities for creating digital content with the help of artificial intelligence, online behavior, protection of personal data, and prevention of all possible abuses that artificial intelligence brings. The research aimed to determine the benefits of artificial intelligence in education, as well as the existence of potential dangers and risks. The research was conducted during the 2022/2023 school year at the Teacher Training Faculty in Tutin at Educons University and the Faculty of Education in Sombor, with a total of 75 students majoring in teaching. The qualitative component of the research consists of 3 focus groups. The responses of future teachers regarding the creation of the teaching process, teaching content, assessment methods, and the use of artificial intelligence tools in the educational process were analyzed. In this qualitative research, students saw the most benefits in creating the teaching process, greater individualization, creativity, and interactivity, as well as faster feedback on student progress. They mostly identified the dangers and concerns in the inability to control information and content, misuse of personal data, lack of transparency and false information. The general conclusion of the research results indicates a consensus among respondents that artificial intelligence tools are certainly good assistants in the teaching process, but they should not in the future suppress the significant role of teachers
Constitutional basis of secessionism
No full textSecessionism, as an extreme form of social mobilization, has been a special focus of
research for the last three decades. The paper, in addition to the definition and conceptual clarification
of this phenomenon, and making a clear distinction between related concepts such as the right to
self-determination, pays special attention to the constitutional framework for secessionist action. At
the center of consideration are the constitutional solutions of individual countries on the Old Continent
and ways of overcoming constitutional crises caused by the secessionist aspirations of individual
autonomous regions. The authors highlight the fact that secessionist activities are not uncharacteristic
even for the European continent, which in recent decades has been strongly characterized by
integrations, joint strategies and the creation of supranational political entities.International Multidisciplinary Conference "Challenges of Contemporary Higher Education" - CCHE 2024, Kopaonik January 29th - February 3rd 202
Could Muscle Power and Muscle Endurance Influence Fire Emergency Response Movement Time in Young Adults?
No full textThis research sought to determine whether there was a direct relationship between muscle power, muscle endurance and emergency response times among young adults. While performance capability remains an essential component for emergency teams, this study showed how some physical fitness factors might alter initial emergency response time and lessen the effects of the disaster. Engagement in preparedness exercises, particularly those emphasizing physical activity, offers advantageous health outcomes and enhances disaster response efficacy. These improvements in readiness directly impact the overall outcomes of such disasters. The sample consisted of 21 students, comprising both male and female participants of the same age. Following the American College of Sports Medicine's (ACSM) Exercise Preparticipation Health Screening Questionnaire for Exercise Professionals, the participants were separated into two groups: the physically active group and the physically inactive group. The study's main objective was to determine whether muscle power and muscle endurance of the participants could influence their fire emergency response movement time to a safe location. Additionally, the study sought to find out whether physically active participants responded more quickly than physically inactive ones. The findings of this study indicate a relationship between emergency response time and measurements of muscle endurance and muscle power. Participants who were physically active had shorter movement time to safe location (p = 0.023), performed better on the standing broad jump test (p = 0.001), and muscle endurance test (p = 0.004). Although performance ability is a key component for emergency teams, this study demonstrated how some factors of physical fitness can affect initial emergency response time and help mitigate the effects of the disaster in young adults