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1.
Long term monitoring and connection between topography and cloud cover distribution in Serbia
Aleksandar Valjarević, Cezar Morar, Jelena Živković, Liudmyla Niemets, Dušan Kićović, Jelena Golijanin, Milena Gocić, Nataša Martić Bursać, Ljiljana Stričević, Igor Žiberna, Nikola Bačević, Ivica Milevski, Uroš Durlević, Tin Lukić, 2021, original scientific article

Abstract: The use of weather satellite recordings has been growing rapidly over the last three decades. Determining the patterns between meteorological and topographical features is an important scientific job. Cloud cover analysis and properties can be of the utmost significance for potential cloud seeding. Here, the analysis of the cloud properties was conducted by means of Moderate Resolution Imaging Spectroradiometer (MODIS) satellite recordings. The resolution of used data was 1 km2 within the period of 30 years (1989-2019). This research showed moderate changing of cloudiness in the territory of Serbia with a high cloudiness in February, followed by cloudiness in January and November. For the past three decades, May has been the month with the highest cloudiness. The regions in the east and south-west, and particularly in the west, have a high absolute cloudiness, which is connected with the high elevation of the country. By means of long term monitoring, the whole territory of Serbia was analyzed for the first time, in terms of cloudiness. Apart from the statistical and numerical results obtained, this research showed a connection between relief and clouds, especially in the winter season. Linear regression MK (Mann-Kendall test) has proven this theory right, connecting high elevation sides with high absolute cloudiness through the year.
Keywords: clowd cover, remote sensing, GIS, topography, statistics, trends
Published in DKUM: 18.10.2024; Views: 0; Downloads: 1
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2.
Green Processing of Neat Poly(lactic acid) Using Carbon Dioxide under Elevated Pressure for Preparation of Advanced Materials : A Review (2012–2022)
Stoja L. Milovanović, Ivana Lukic, Gabrijela Horvat, Zoran Novak, Sulamith Frerich, Marcus Petermann, Carlos A. García-González, 2023, review article

Abstract: This review provides a concise overview of up-to-date developments in the processing of neat poly(lactic acid) (PLA), improvement in its properties, and preparation of advanced materials using a green medium (CO2 under elevated pressure). Pressurized CO2 in the dense and supercritical state is a superior alternative medium to organic solvents, as it is easily available, fully recyclable, has easily tunable properties, and can be completely removed from the final material without post-processing steps. This review summarizes the state of the art on PLA drying, impregnation, foaming, and particle generation by the employment of dense and supercritical CO2 for the development of new materials. An analysis of the effect of processing methods on the final material properties was focused on neat PLA and PLA with an addition of natural bioactive components. It was demonstrated that CO2-assisted processes enable the control of PLA properties, reduce operating times, and require less energy compared to conventional ones. The described environmentally friendly processing techniques and the versatility of PLA were employed for the preparation of foams, aerogels, scaffolds, microparticles, and nanoparticles, as well as bioactive materials. These PLA-based materials can find application in tissue engineering, drug delivery, active food packaging, compostable packaging, wastewater treatment, or thermal insulation, among others.
Keywords: aerogels, drying, foaming, impregnation, particle generation, PLA
Published in DKUM: 06.02.2024; Views: 395; Downloads: 24
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3.
Turistični kompleks Manjača
Maja Lukić, 2020, master's thesis

Abstract: Tema magistrskega dela je zasnova turističnega kompleksa ob jezeru Manjača v Bosni in Hercegovini. V teoretskem delu je obravnavana splošna tema turizma v Bosni in Hercegovini. Izdelane so analize širšega in ožjega območja obravnave, na katerih temelji projektni del. Prostorske in programske intervencije so zasnovane glede na potenciale in potrebe na podlagi analize tradicionalnih elementov arhitekture ter glede na značilnosti same lokacije. Projektni del obsega zasnovo osrednjega nadkritega dela ob jezeru z recepcijo, gostinskim objektom, objektom za izposojo športne opreme ter sanitarijami. Nedaleč stran je zasnovana ureditev avtokampa s priključki za avtodome in servisnim objektom. Južno od jezera je zasnovano turistično naselje s počitniškimi hiškami. Vse ureditve povezuje sistem poti in zunanjih ureditev. Ureditev ob jezeru Manjača daje programski in prostorski okvir za razvoj rekreacijskega, adrenalinskega in etno turizma, ki bi oživil tudi širše območje obravnave. Zasnova turističnega kompleksa z dopolnilnimi dejavnosti sledi ciljem trajnostnega razvoja in nakazuje možnosti razvoja turizma v regiji.
Keywords: arhitektura, Manjača, tradicija, turistični kompleks, trajnostni razvoj
Published in DKUM: 18.06.2020; Views: 1796; Downloads: 276
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4.
Trust in police by Serbian and Slovenian law students : a comparative perspective
Natalija Lukić, Vanja Bajović, Bojan Tičar, Katja Eman, 2016, original scientific article

Abstract: Purpose: Based on past studies and cognitions about legitimacy and related concepts, the paper presents law students’ perceptions of trust in police and policing in Serbia and Slovenia, analysing data from a web survey conducted in autumn 2012 and spring 2013. Design/Methods/Approach: We conducted a secondary analysis of data from a web survey conducted by Meško and colleagues in 2013 in Serbia and Slovenia using descriptive and multivariate statistical methods (factor analysis, t-test and regression analysis). Findings: The findings indicate that the law students generally question their willingness to comply with laws and cooperate with the police. The results reveal a slightly more positive perception of police legitimacy and its correlates by the Slovenian law students than their Serbian counterparts. Similar, police authority, trust in police, procedural justice and police effectiveness are more positively perceived in Slovenia. Research Limitations / Implications: The results provide insights into trust in the police held by potential future professionals in the (criminal) justice system in Serbia and Slovenia, also revealing differences between the two countries. Practical Implications: The police should primarily strive to improve their effectiveness, authority and procedural justice to improve the trust in and legitimacy of policing in the respective country. Originality/Value: The article presents a very good starting point for a further analysis of law students’ attitude to the police in Serbia and Slovenia. In the conclusion, the authors discuss possible solutions for improving the relationship between the police and law students.
Published in DKUM: 20.04.2020; Views: 919; Downloads: 44
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5.
A comparison of linear and nonlinear seismic tunnel-ground interaction analyses
Elefterija Zlatanović, Marina Trajković-Milenković, Dragan Lukić, Stanko Brčić, Vlatko Šešov, 2016, original scientific article

Abstract: In order to study the effects of a seismically induced tunnel–ground interaction, two-dimensional numerical analyses are performed using the sofware ANSYS. The study employs a coupled beam–spring model subjected to earthquake loading that is simulated under pure shear conditions and determined by a free-field ground-response analysis using the code EERA. The properties of the soil material are considered as both linear and nonlinear. The results obtained by linear dynamic analyses are compared with state-of-practice analytical elastic solutions. A comparison of the results of both linear and nonlinear analyses is also performed, and significant differences, as well as important factors influencing the tunnel–ground interaction for both cases, are evaluated.
Keywords: circular tunnel, linear/nonlinear soil behaviour, beam–spring model, plane-strain conditions, simplified dynamic FE analysis, soil–structure interaction
Published in DKUM: 18.06.2018; Views: 1339; Downloads: 80
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6.
Posebnosti dajanja železovih preparatov v žilo
Jelena Lukić, 2017, undergraduate thesis

Abstract: Teoretična izhodišča: Anemija zaradi pomanjkanja železa ogroža več kot 30 % svetovnega prebivalstva. Namen diplomskega dela je predstaviti pozitivne in negativne ugotovitve pacientov, ki prejemajo železove preparate v žilo ter na podlagi ugotovitev predlagati in iskati možnosti za izboljšanje oskrbe in pomoči tem pacientom. Raziskovalna metodologija: V diplomskem delu smo uporabili deskriptivno in kvantitativno metodologijo. Podatke smo pridobili s pomočjo vprašalnika, ki je bil sestavljen iz 26 vprašanj odprtega in zaprtega tipa. Raziskavo smo opravljali v kliničnem okolju pri 36 pacientih, ki se zaradi pomanjkanja železa zdravijo v hematološki ambulanti. Rezultati: Anketirani so infuzije železa dobro prenašali, pri 77 % anketiranih se stranski učinki med prejemanjem infuzije niso pojavljali. Največ anketiranih ima zaradi pomanjkanja železa težave v vsakdanjih aktivnostih. Kot najpogostejšo težavo pred diagnosticiranjem bolezni so navedli utrujenost. Največ anketiranih uživa živila obogatena z železom 3 krat na teden. Sklep: Železo moramo pravilno nadomeščati, vendar je potrebno stremeti k temu, da se odkrije vzrok pomanjkanja. V zadnjih letih so parenteralni železovi preparati, ki se dajejo v veno, postali dokaj varni in bi jih bilo, glede na pozitiven učinek počutja pacientov in dober izkoristek zdravila, smiselno uvesti v širšo uporabo.
Keywords: sideropenična anemija, infuzije železovih pripravkov, parenteralna terapija, medicinska sestra, prehrana.
Published in DKUM: 21.12.2017; Views: 2289; Downloads: 175
.pdf Full text (1,72 MB)

7.
Spolna usmerjenost v povezavi z navezanostjo na partnerja in doživljanjem socialne opore
Miljana Lukić, 2017, master's thesis

Abstract: Magistrska naloga obravnava povezavo med stili navezanosti v odraslosti in socialno oporo med homoseksualno in heteroseksualno usmerjenimi posamezniki. Natančneje, namen raziskave je bil ugotoviti, ali prihaja do razlik v stilih navezanosti na partnerja in dojemanju socialne opore med homoseksualno in heteroseksualno usmerjenimi posamezniki. Tematike se raziskava loteva v povezavi z Bowlbyjevo teorijo navezanosti in doživljanjem socialne opore s strani prijateljev in družine. Preučeni teoretični viri nam kažejo, da imajo pri otrokovem občutku varnosti in zaupanja v svet veliko vlogo njegove ponavljajoče izkušnje s pomembnimi drugimi v zgodnjem otroštvu. Te izkušnje vplivajo na to, kaj bo posameznik kasneje v življenju pričakoval od sveta oziroma kako bo videl sebe in druge. V raziskavo je bilo vključenih 129 žensk in 102 moških. Glede na spolno usmerjenost je bilo v vzorec vključenih 112 homoseksualno usmerjenih, od tega je bilo 54 žensk in 58 moških. Prav tako je bilo v vzorec vključenih 119 heteroseksualno usmerjenih, od tega je bilo 75 žensk in 44 moških. Udeleženci so izpolnili dva vprašalnika, in sicer Vprašalnik zaznave socialne opore (Perceived Social Support from Friends and Family (PSS-Fr in PSS-F) Procidano in Heller, 1983) in Vprašalnik medosebnih odnosov (Relationship questionnaire, Bartholomew in Horowitz, 1991). Rezultati naše raziskave so potrdili hipotezo, da obstaja razlika med homoseksualno in heteroseksualno usmerjenimi v stilih navezanosti na partnerja in v zaznavi socialne opore prijateljev in družine. Za razliko od posameznikov, ki imajo ne-varen stil navezanosti na partnerja (preokupiran, plašljiv ali odklonilen), posamezniki, ki imajo varen stil navezanosti na partnerja, prejemajo več opore prijateljev in družine.
Keywords: Homoseksualno usmerjen, heteroseksualno usmerjen, stili navezanosti na partnerja, socialna opora
Published in DKUM: 28.11.2017; Views: 1407; Downloads: 209
.pdf Full text (1,65 MB)

8.
Vrtec v Banja Luki
Maja Lukić, 2017, diploma project paper

Abstract: V projektni nalogi smo obravnavali temo otroškega vrtca. Naloga vsebuje teoretični in projektni del. V teoretičnem delu je obravnavana lokacija, ter funkcije in prostori vrtca. Projektni del obsega idejno zasnovo otroškega vrtca.
Keywords: arhitektura, vrtec, park, Banja Luka
Published in DKUM: 20.09.2017; Views: 1069; Downloads: 138
.pdf Full text (83,79 MB)

9.
ELEKTRONSKI SISTEM ZA PREBUJANJE IZ PARASOMNIJ
Mario Lukić, 2016, undergraduate thesis

Abstract: Namen diplomske naloge je raziskati tehnologijo za brezžično komunikacijo in izdelati sistem za prebujanje iz parasomnij. Razdeljen je na dve enoti. Prva je senzorski modul, ki zaznava hojo med spanjem in prepoznava nočne strahove. Ta bo deloval s tlačnim višinomerom in mikrofonom. Drugi enota je postaja za prebujanje, ki bo s predvajanjem glasbe in svetlobnimi signali prebudila posameznika. Predstavljeno je teoretično delovanje tehnologij za izvedbo, poleg tega pa še opisani načrtovanje, sistem ter njegova možna nadgradnja.
Keywords: vgrajen sistem, brezžična komunikacija, parasomnija
Published in DKUM: 02.12.2016; Views: 2024; Downloads: 101
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10.
RACIONALIZACIJA V NLB D.D.
Biljana Lukić, 2016, bachelor thesis/paper

Abstract: V diplomski nalogi obravnavamo racionalizacijo v NLB d. d. Racionalizacija pomeni »pocenitev poslovanja«, česar pa ne dosežemo samo z odpuščanjem, ampak predvsem z racionalizacijo materiala, časa dela in drugim. Racionalizacija ima samo en cilj – finančni prihranek. Organizacija je sistem ljudi, sredstev in virov, kar pomeni, da je z ene strani instrument oziroma orodje za doseganje ciljev, z druge strani pa skupnost interesov ljudi. Kadri so vsi delavci v organizaciji ne glede na njihovo stopnjo izobrazbe ali drugačno strokovno usposobljenostjo. Banka je gospodarski subjekt, ki je podvržen gospodarski strukturi, kar pomeni, da ta gospodarska struktura vpliva na bančništvo in njegovo organiziranost. Vloga banke je vedno odvisna od razvojne stopnje gospodarstva in od gospodarskega sistema. Prvo fazo procesa racionalizacije je NLB d.d. začela uresničevati v začetku julija 2013. Reorganizacija je vplivala na število in strukturo zaposlenih, poleg tega pa je k racionalnejšemu poslovanju pripomogla tudi izvedena prostorska optimizacija.
Keywords: banka, racionalizacija, organizacija, stroški, kadri
Published in DKUM: 13.10.2016; Views: 1362; Downloads: 100
.pdf Full text (722,93 KB)

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