Repository of Josip Juraj Strossmayer University of Osijek
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Everyday life
No full textSlikarstvo kao i svaki umjetnički medij zahtijeva korištenje različitih likovnih elemenata. Ono što te elemente uokviruje u cjelinu jest prostor koji nastaje stvaranjem iluzije dubine i perspektive u ljudskom umu te se često koristi kako bi stvorio različite efekte kod promatrača, kao što su pojačavanje ili umanjivanje emocionalnog intenziteta i dočaravanje određenog događaja. Otvoreni nam se prostor može činiti beskonačnim dok se nasuprot tomu zatvoreni prostor može čini klaustrofobičnim. U kontekstu stvarnosti prostor je neizbježan i obilježava našu stvarnost. Zanimajući se za prostor i njegov utjecaj odlučio sam se za istraživanje seoskog prostora, odnosno bakinog seoskog imanja. Prizori koje sam naslikao nalikuju na one koje sam vidio prolaskom kroz Slavoniju. Ovaj je rad proizašao iz moje želje da izazovem tradiciju i tradicionalne koncepte, ali i iz ljubavi prema prostoru na kojem sam proveo veliki dio svojeg života. Sačinjavaju ga tri slike koje su konceptualno i estetski međusobno povezane te se tako nadopunjuju. Ukratko sam spomenuo i umjetnike i njihova djela koja sam držao važnima u cjelokupnome narativu ovoga diplomskog rada. Svaki od tih umjetnika gradio je drugačiju osobnu sliku sela, a njihovi su radovi su dokaz da su ruralni i seoski motivi neiscrpan izvor inspiracije tako što su pružili raznolikost motiva za različite generacije umjetnika.Painting, like any art medium, requires the use of different artistic elements. What frames these elements into a whole is the space that is created by creating the illusion of depth and perspective in the human mind and is often used to create different effects for the observer, such as increasing or decreasing emotional intensity and enchanting a certain event. An open space can seem endless to us, while a closed space can seem endless to us, while a closed space can seem claustrophobic. In the context of reality, space is inevitable and marks our reality. Being interested in space and its influence, I decided to research the rural area, that is, my grandmother' s country estate. The scenes I painted resemble those I saw while passing through Slavonia. This work arose from my desire to challenge tradition and traditional concepts, but also from my love for the space where I spent a large parto of my life. It consists of three pictures that are conteptually and aresthetically interconnected and thus complement each other. I briefly mentioned the artist and their works that I considered important in the overall narrative of this thesis. Each of these artists built a different personal image of the village, and their works are proof that rural and village motifs are an inexhaustible source of inspiration by providing a variety of motifs for different generations of artists
The Ambidextrous Role of Inland Terminals in Enhancing Port–Hinterland Connectivity
No full textBackground: The operational roles of ports are deeply intertwined with the development of their surrounding hinterlands, indicating that their relationship is mutually dependent and interactive. Moreover, the growth of a port positively influences the development of its hinterland, stimulating economic activities and improving overall regional development by enhancing competitiveness. Inland terminals, often considered “extended gateways” to ports, play a crucial role in integrating ports with their hinterlands. These terminals facilitate the adjustment of cargo transportation to align with the operational dynamics of ports. This paper presents a framework designed to clarify the importance of fostering strong links between ports and their hinterlands through the establishment of inland terminals. Methods: By applying a conceptual framework and methodologies of literature review and content analysis, this paper highlights the critical importance of developing robust connections between ports and their hinterlands through the implementation of inland terminals. Results and Conclusions: The findings of this research can help map the scientific knowledge related to various metrics of port–hinterland connectivity, outline relevant thematic areas, visualize the relationships between ports and their hinterlands, and identify prevailing research gaps and potential research paths in the context of inland terminal integration into the port system
The Effectiveness of Conservation Agriculture in Mitigating Climate Change through Soil Conservation and Carbon Storage
No full textThe data collected by the research as well as the processed data will be divided and classified according to the following data groups:
o Pedophysical and pedomechanical research parameters
o Chemical-biological research parameters
o Plant-breeding research parameters
o Climate projection analyses
o Economic analyses and projections
Some of the most important monitored/researched indicators, which belong to the previously mentioned data groups, are: Soil solid phase density, Soil bulk density, Soil porosity and air capacity, Water retention capacity, Soil water permeability, Soil temperature, Stability of soil structural aggregates, Degree of soil compaction, Soil pH value, Hydrolytic acidity, Soil carbonate content, Soil organic carbon (SOC), Soil organic matter content (SOM), Active organic carbon, Soil electrical conductivity (EC), Humic acid and fulvic acid content, Available phosphorus and potassium content, Micronutrient concentration, Soil cation exchange capacity (CEC), Soil respiration, C/N ratio, Determination of soil microbial biomass, Determination of species of mycotoxicogenic molds to the genus level, determination of occurrence of phenological phases and biometric components of corn, soybeans and winter wheat, analysis of climate projections, economic analyzes and projections
“The Effect of Intravenous Lidocaine and Ketamine Administration on Serum Levels of Acute Inflammatory Response Reactants and Analgesia in Colorectal Cancer Surgery”
No full textCilj istraživanja: Cilj je istraživanja bio istražiti učinke intraoperacijske intravenske primjene
anestetika lidokaina i ketamina, zasebno i u kombinaciji, na akutni upalni odgovor, analgeziju
i poslijeoperacijski oporavak kod bolesnika podvrgnutih otvorenoj resekciji kolorektalnog
karcinoma.
Nacrt studije: Ovo je bilo prospektivno, randomizirano, dvostruko slijepo, placebom
kontrolirano kliničko istraživanje s 2 × 2 faktorijalnim dizajnom.
Ispitanici i metode: U istraživanje je uključeno 82 ispitanika podvrgnutih elektivnom
otvorenom operativnom zahvatu resekcije kolorektalnog karcinoma. Randomizirani su u jednu
od četiri skupine: lidokain i ketamin (n = 21), lidokain i placebo (n = 21), ketamin i placebo (n
= 21) i placebo i placebo (n = 19). Nakon indukcije opće anestezije svi su ispitanici primili
intravenski bolus (lidokain 1,5 mg/kg i/ili ketamin 0,5 mg/kg i/ili isti volumen placeba) zatim
kontinuiranu infuziju (lidokain 2 mg/kg/h i/ili ketamin 0,2 mg/kg/h ili isti volumen placeba)
sve do završetka operativnog zahvata. Za procjenu učinka na akutni upalni odgovor, određivana
je dinamika promjena broja leukocita, C-reaktivnog proteina i interleukina (IL-6, IL-8). Uzorci
krvi uzorkovani su neposredno prije indukcije opće anestezije, 12 i 36 sati nakon završetka
operativnog zahvata. Učinak na analgeziju evaluiran je praćenjem intraoperacijske potrošnje
opioidnih analgetika, 48-satne poslijeoperacijske potrošnje svih ostalih analgetika te mjerenjem
intenziteta bola korištenjem vizualno analogne ljestvice 2, 4, 12, 24, 36 i 48 sati nakon završetka
operativnog zahvata. Vrijeme do pojave prve peristaltike, prisutnost poslijeoperacijske mučnine
i povraćanja, duljina boravka u jedinici intenzivne medicine i duljina trajanja hospitalizacije
korišteni su kao parametri za praćenje poslijeoperacijskog oporavka bolesnika.
Rezultati: Nisu utvrđene značajne razlike u koncentraciji mjerenih upalnih markera niti s
jednom od primijenjenih intervencija lidokaina i ketamina u usporedbi s placebom. Nije
dokazana značajna interakcija, niti aditivna niti multiplikativna, između lidokaina i ketamina
na upalne markere 12 i 36 sati nakon operacije. Lidokain i ketamin, bilo u zasebnoj primjeni ili
kombinaciji, značajno su smanjili intraoperacijsku potrošnju opioidnih analgetika naspram
placeba te osim lidokaina zasebno, smanjili su i intenzitet poslijeoperacijskog bola. Niti jedna
od primijenjenih intervencija nije značajno utjecala na parametre poslijeoperacijskog oporavka.
Zaključak: Kombinacija intravenske primjene lidokaina i ketamina tijekom operativnog
zahvata otvorene resekcije kolorektalnog karcinoma ne nudi prednosti u usporedbi s njihovom
pojedinačnom primjenom.Objectives: The aim of the study was to examine the effects of intraoperative intravenous
administration of anesthetics, lidocaine and ketamine, separately and in combination, on the
acute inflammatory response, analgesia, and postoperative recovery in patients undergoing
open resection for colorectal cancer.
Study Design: This was a prospective, randomized, double-blind, placebo-controlled clinical
trial with a 2 × 2 factorial design.
Participants and Methods: The study involved 82 participants undergoing elective open
surgical resection of colorectal cancer. The patients were randomized into one of four groups:
lidocaine and ketamine (n = 21), lidocaine and placebo (n = 21), ketamine and placebo (n = 21),
and placebo and placebo (n = 19). After the induction of general anesthesia, all subjects received
an intravenous bolus (lidocaine 1.5 mg/kg and/or ketamine 0.5 mg/kg and/or the same volume
of placebo) followed by a continuous infusion (lidocaine 2 mg/kg/h and/or ketamine 0.2
mg/kg/h and/or the same volume of placebo) until the completion of the surgery. To assess the
effects on the acute inflammatory response, the dynamics of changes in leukocyte count, Creactive protein, and interleukins (IL-6, IL-8) were evaluated. Blood samples were collected
immediately before the induction of general anesthesia, and 12 and 36 hours after the surgery.
The effect on analgesia was evaluated by measuring intraoperative consumption of opioid
analgesics, 48-hour postoperative consumption of all other analgesics, and pain intensity scores
on a visual analogue scale at 2, 4, 12, 24, 36, and 48 hours postoperatively. The time to the onset
of first peristalsis, incidence of postoperative nausea and vomiting, length of stay in the
intensive care unit, and duration of hospitalization were used as parameters to monitor patients’
postoperative recovery.
Results: No significant differences were found in the concentration of the measured
inflammatory markers with any of the applied interventions of lidocaine and ketamine
compared to placebo. No significant interaction, neither additive nor multiplicative, was
confirmed between lidocaine and ketamine on inflammatory markers 12 and 36 hours after the
surgery. Lidocaine and ketamine, whether used separately or in combination, significantly
reduced intraoperative opioid consumption compared to placebo, and, except for lidocaine
alone, reduced the intensity of postoperative pain. None of the interventions significantly
influenced the parameters of postoperative recovery.
Conclusion: The combination of intravenous administration of lidocaine and ketamine during
the surgical procedure of open resection of colorectal cancer offers no advantages compared to
their individual use
Web application for computer service
No full textWeb aplikacija pod nazivom "Servis računala" izrađena je uz pomoć tehnologija poput
HTML-a, CSS-a, Bootstrap 5, Python Django, JavaScripta i SQLitea. Registrirani korisnici mogu se
naručivati servis računala, čišćenje ili instalaciju operacijskog sustava te sudjelovati u sobama za
razgovor i čitati članke o održavanju računala. Također, imaju svoje osobne stranice na kojima mogu
ostavljati informacije o svom računalu. Gosti stranice mogu samo pregledavati sadržaj i čitati članke.
Administratori postavljaju savjete o održavanju računala, upravljaju narudžbama i sobama za razgovor.The web application called "Computer Service" was developed using technologies such as
HTML, CSS, Bootstrap 5, Python Django, JavaScript, and SQLite. Computer service, cleaning, or operating
system installation, can be ordered by registered users, who also participate in chat rooms, and read
articles on computer maintenance. They also have personal pages where the information about their
computers can be left. Guests can only browse the content and read articles. Computer maintenance
tips are provided by administrators, who manage orders and oversee chat rooms
Application of the model for estimating the costs of maintenance and use of buildings
No full textU radu se analizira primjena modela procjene troškova održavanja i uporabe građevina, s posebnim naglaskom na zgrade javne namjene. Cilj istraživanja bio je izraditi desetogodišnji plan održavanja i uporabe dječjeg vrtića te dobivene troškove usporediti s procijenjenim troškovima koji su dobiveni primjenom različitih modela procjene. Rad započinje pregledom postojećih metoda za izračun ukupnih životnih troškova građevina, uključujući metodu neto sadašnje vrijednosti i faktorsku metodu. Na konkretnom primjeru dječjeg vrtića analizirani su troškovi zakonom propisanih periodičnih pregleda, zamjene istrošenih materijala, periodičnih radova te reaktivnog održavanja. Dobiveni rezultati
uspoređeni su s rezultatima matematičkih modela kako bi se utvrdile razlike između procijenjenih, računskih određenih vrijednosti troškova, i troškova dobivenih modelima. Prednosti korištenih modela uključuju mogućnost smanjenja uporabnih troškova i produženje uporabnog vijeka građevine, dok su glavni izazovi povezani s nedostatkom pouzdanih podataka i složenošću primjene u praksi. Zaključuje se da sustavno planiranje i primjena adekvatnih modela značajno doprinose održivosti javnih građevinaThe paper analyzes the application of cost estimation models for the maintenance and use of buildings, with a particular focus on public buildings. The aim of the research was to develop a ten-year maintenance and usage plan for a kindergarten and compare the obtained costs with the estimated costs derived from different assessment models. The study begins with a review of existing methods for calculating the total life−cycle costs of buildings, including the net present value method and the factor method. In the case study of a kindergarten, the analysis covered the costs of legally mandated periodic inspections, the replacement of worn−out materials, scheduled maintenance work, and reactive maintenance. The obtained results were compared with the outcomes of mathematical models to identify differences between estimated, computationally determined cost values and those obtained through models. The advantages of the applied models include the potential for reducing operational costs and extending the service life of the building,
while the main challenges are related to the lack of reliable data and the complexity of practical implementation. The study concludes that systematic planning and the application of appropriate models significantly contribute to the sustainability of public buildings
Application of artificial intelligence for construction project planning
No full textTema diplomskog rada bavi se analizom primjene umjetne inteligencije u građevinarstvu sa posebnim fokusom na procese planiranja. U teorijskom dijelu rada obuhvaćeno je planiranje građevinskih projekata, vremensko planiranje, veze kojima se međusobno povezuju aktivnosti i metode koje se koriste kao pomoć pri planiranju projekta. Poseban naglasak stavljen je na razliku između vremenskog planiranja i planiranja općenito. Također, obrađen je razvoj umjetne inteligencije i njezina implementacija u građevinarstvu sa naglaskom na benefite koje njezina primjena donosi projektima. Praktični dio rada uključuje dvije studije slučaja gdje je ispitana mogućnost umjetne inteligencije da izračuna trajanje projekta i odredi kritični put. Također, jedna od studija slučaja proširena je ispitivanjem sposobnosti otkrivanja troškovno značajne aktivnosti i prekomjerne alokacije radnika.The topic of this thesis deals with the analysis of the application of artificial intelligence in construction, with a particular focus on planning processes. The theoretical part of the paper covers construction project planning, scheduling, the relationships that connect activities, and methods used as aids in project planning. Special emphasis is placed on the difference between scheduling and general planning. Additionally, the development of artificial intelligence and its implementation in construction is discussed, with a focus on the benefits that its application brings to projects. The practical part of the thesis includes two case studies, where the possibility of artificial intelligence calculating project duration and determining the critical path is examined. Furthermore, one of the case studies is extended by investigating the ability to identify costsignificant activities and excessive worker allocation
Architectural - urban design of Retfala - south business zone
No full textZadatak završnog rada je idejno urbanističko i arhitektonsko rješenje poslovne zone Retfala-jug koja se nalazi u jugozapadnom dijelu grada Osijeka. Zadani obuhvat smješten je između trgovačkog centra Portanova i zgrade bivšeg trgovačkog centra Pevec te u blizini južne obilaznice. Analizom okolnog prostora obuhvata osmišljeno je urbanističko rješenje kojim se u zadani obuhvat smješta 3 poslovne zgrade, jedan hotel i jedna zgrada tržnice. Analizom su predviđena dva dijagonalna puta kretanja pješaka kroz obuhvat koji se pružaju u smjeru sjever-jug. Okomito na te dvije staze, kroz cijeli obuhvat proteže se glavna šetnica okružena čeličnom konstrukcijom te su u njoj smješteni razni sadržaji poput vrtova, buvljaka, kafića, knjižnice i sl. Arhitektonsko rješenje izvedeno je za najviši toranj koji se nalazi na zapadu obuhvata između hotela i poslovne zgrade te šetnice i prometnice. Sam koncept zgrade proizašao je iz analize prostora u kojem se zgrada nalazi. S jedne strane je okružena prometnicom, parkingom i željezničkom prugom, a s druge strane nalazi se šetnica. Ta dva dominantna elementa utječu na zgradu i nameću joj neke svoje zahtjeve kojima se ona želi prilagoditi. Zbog toga se na njoj stvaraju udubljenja koja predstavljaju dvoetažne otvorene terase. Pročelje zgrade oblikovala je ovojnica koja ju štiti ne samo od vanjskih utjecaja, nego i od zahtjeva šetnice i prometnica. Tema čelične konstrukcije, tj. modula iz urbanističkog rješenja, provukla se u zgradi. Ti moduli su smješteni u prizemlju gdje služe kao prostor za izložbu i na 7. katu gdje imaju funkciju "stanica" za odmor, rad, druženje i sl.The task of the final thesis was the conceptual urban and architectural solution of the business zone Retfala-jug, which is located in the southwestern part of the city of Osijek. The default scope is located between the Portanova shopping center and the building of the former Pevec shopping center. By analyzing the surrounding area, an urban planning solution was designed, which accommodates three office buildings, one hotel, and one market building in the given scope. The analysis foresees two diagonal paths of pedestrian movement through the scope, which extend in the north-south direction. Perpendicular to those two paths, the main promenade surrounded by a steel structure extends through the entire area, and it contains various facilities such as gardens, flea markets, cafes, libraries, etc. The architectural solution was designed for the tallest tower located in the west between the hotel and the office building, as well as the promenade and road. The concept of the building came from the analysis of the area in which the building is located. On one side, it is surrounded by a road, parking lot, and railway, and on the other side, there is a promenade. These two dominant elements influence the building and impose some of their own requirements to which it wants to adapt. Because of this, depressions are created on it, which represent two-level open terraces. The facade of the building was shaped by an envelope that protects it not only from external influences but also from the requirements of the promenade and roads. The theme of the steel structure, i.e., the module from the urban planning solution, permeated the building. These modules are located on the ground floor, where they serve as an exhibition space, and on the 7th floor, where they function as "stations" for rest, work, socializing, etc
Creativity as a part of school culture
No full textŠkola je glavno mjesto za poticanje kreativnosti svakog pojedinog učenika, a to znači da učitelji imaju veliku ulogu u tome. Učitelj treba poticati divergentno mišljenje koje je preduvjet kreativnome mišljenju kod učenika, od načina pristupanja novim i starim izazovima do sposobnosti traženja rješenja kao i mogućnosti spajanja postojećih znanja u nova rješenja. Kreativan učitelj je taj koji će poticati razvoj kreativnosti svojih učenika, o njemu ovisi hoće li nastava biti kreativna i koje će, kada i u kojoj mjeri kreativne tehnike koristiti. Zadaća je učitelja da osigura pozitivnu razrednu klimu uvažavajući potrebe i individualne mogućnosti svakog učenika te stvori poticajnu okolinu za učenje i kreativno razmišljanje uz ostvarivanje međusobne suradnje. Kreativnost je važna i treba ju poticati, a ne sputavati pa u tome veliku ulogu ima organizacijska podrška. Kao što se od učitelja očekuje stvaranje poticajnog okružja u razredu, tako se i od ravnatelja se očekuje stvaranje pozitivnog ozračja u školi. U suradničkom okruženju u školi, kreativni učitelji međusobno se podržavaju i razmjenjuju informacije, a to se ogleda u kulturi škole koja promiče kolegijalnost i razvija potrebu za kreativnošću. Kulturu škole stvaraju svi njezini dionici. Pozitivna kultura škole, pozitivno djeluje na motivaciju i kreativnost i učenika i učitelja. Cilj ovog rada je predstaviti neka dosadašnja istraživanja iz područja kreativnosti i kulture škole. Kako je kreativnost učitelja i učenika implementirana u odgojno-obrazovni proces te kako se to ocrtava na cjelokupnu kulturu škole i čini njezin važan dio.School serves as the primary locus for nurturing the creative potential of each student, with teachers assuming a pivotal role in this process. Teachers need to encourage divergent thinking, which is a prerequisite for fostering creative thinking in students, ranging from their approach to new and old tasks to their ability to seek solutions and merge existing knowledge into new solutions. A creative teacher is the one who fosters the development of creativity in their students; it depends on them whether the teaching will be creative and which creative techniques they will use, when, and to what extent. It is the teacher's task to ensure a positive classroom climate by recognizing the needs and individual capabilities of each student and creating a stimulating environment for learning and creative thinking, while promoting collaboration. Creativity is important and should be encouraged, not hindered, so organizational support plays a significant role in this regard. Just as teachers are expected to create a stimulating classroom environment, principals are also expected to foster a positive atmosphere within the school. In a collaborative school environment, creative teachers support each other and exchange information, reflecting in a school culture that promotes collegiality and nurtures the need for creativity. School culture is shaped by all of its stakeholders. A positive school culture has a positive impact on the motivation of both students and teachers. The aim of this work is to present some previous research in the field of creativity and school culture. How the creativity of teachers and students is implemented in the educational process and how it is reflected in the overall culture of the school and is an important part of it
Comparative Analysis of Machine Learning Models for Predicting Innovation Outcomes: An Applied AI Approach
No full textPredicting innovation outcomes at the firm level continues to be an important but challenging goal for researchers and practitioners alike. In this study, multiple machine learning models, encompassing both ensemble-based and single-model approaches, were applied to data from the Community Innovation Survey. Methods included random forests, gradient boosting frameworks, support vector machines, neural networks, and logistic regression, each with hyperparameters optimized through Bayesian search routines and evaluated using corrected cross-validation techniques. The results showed that tree-based boosting algorithms consistently outperformed other models in accuracy, precision, F1-score, and ROC-AUC, while the kernel-based approach excelled in recall. Logistic regression proved to be the most computationally efficient model despite its weaker predictive power. The statistical analyses made it clear that the choice of an appropriate cross-validation protocol and accounting for overlapping data splits are crucial to reduce bias and ensure reliable comparisons. Overall, the results indicate that ensemble methods generally provide robust classification performance for innovation prediction tasks. However, individual models may still prove advantageous under certain metric-specific conditions or computational constraints. These observations emphasize the need to match model selection with data structure, performance objectives, and practical resource constraints when predicting and improving innovation outcomes at the firm level