Possibilities for the use of geothermal energy in new residential buildings in Serbia, case study Urban Blocks in City of Kragujevac

Use of RES is an important element for achieving ambitious results for CO2 emission reduction in EU, emphasized and obligated by RES Directive, among other documents. In Serbia, as a candidate country and a signatory of Energy treaty, targets set by relevant documents reflect in benchmarks set by National Action Plan for Energy Efficiency, setting the level of reduction of energy consumption until 2018 for 9%, with more ambitious projections up to 2030. This calls for extensive research of possibilities for the use of renewable energy in buildings, its potentials and possible restrictions. Since the Directive states that low amount of energy required should be covered to a very significant extent by energy from renewable sources, including energy from renewable sources produced on-site or nearby, an investigation of possibilities for application of geothermal ground probes for a typical residential urban block in the city of Kragujevac is presented. This enables analysis of limitations imposed by legal and physical conditions: planning guidelines, type of ground, functional requests and infrastructural capacities. Typology of characteristic urban block layouts for residential buildings is generated, leading to projections of possible area covered with ground probes and calculations of relevant energy needed for heating, based on current regulations on energy efficiency in buildings. From these calculations, percentage of defined energy needs from possible geothermal ground probes is defined, enabling estimation of geothermal energy potential for new residential building blocks

Development for CO2 emissions reduction by the use of solar thermal collectors in the process of urban planning

Using RES is one of the most important characteristics of the sustainable and resilient development. Nowadays, need to minimize CO2 emissions is obligatory, especially in the sector of urban and architectural planning, since in Serbia approximately 50% of produced energy is spent in buildings. The CO2 emission, in urban structures, can and must be reduced at the different levels: building level, block, and city level. For the city of Kragujevac, based on urban parameters defined in General Urban Plan, typical urban block was chosen and typical building structure developed. Calculation were made, based on recommendations developed by the Ministry of mining and energy and Serbian regulations, for the energy needed for domestic hot water preparation. In this paper, the influences of architectural and urban parameters on the use of solar thermal collectors at the typical building and urban block level is investigated. Recommendations are prepared for principles of urban and architectural design in order to enable the use of collectors for domestic hot water preparation and in that way CO2 emission reduction. Developed methodology for the city of Kragujevac can be applied in defining design principles in whole the country and Balkans region, not only for the use of solar thermal collectors but also for the use of other RES

Supplementary information for: "Binding of metal ions and water molecules to nucleic acid bases: The influence of water molecule coordination to a metal ion on water–nucleic acid base hydrogen bonds"

Figure S1. Distance distribution for hydrogen bonds with coordinated and noncoordinated water, separately for different nucleic bases and positions; Table S1. The calculated interaction energies and distances between five nucleic bases and noncoordinated water molecules, at the B3LYP-D3/def2-TZVP (kcal/mol) and corrected for BSSE), MP2/def2-QZVP (kcal/mol) and noncorrected for BSSE) and CCSD(kcal/mol) and T)/CBS level; Table S2. The calculated interaction energies and distances at the B3LYP-D3/def2-TZVP level between five nucleic bases and water molecules coordinated to Zn2+ ion; Table S3. A number of hydrogen bonds between nucleic bases and coordinated water, and percentage of [M(H2O)n]x+ complexes, with different kinds of metals. Figure S2. Electrostatic potential maps for the nucleic bases. Figure S3. Distribution of the distance between water oxygen and nucleic base oxygen/nitrogen found in PDB structures for noncoordinated and coordinated water;Supplementary information for: Andrić, Jelena M., Stanković, Ivana, Zarić, Snežana D., "Binding of metal ions and water molecules to nucleic acid bases: The influence of water molecule coordination to a metal ion on water–nucleic acid base hydrogen bonds" in Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 75 (2019):301-309, [https://doi.org/10.1107/S2052520619001999]Published version of the article: [https://cer.ihtm.bg.ac.rs/handle/123456789/3521

Анализа повезаности сезонских промена и квалитета живота са различитим клиничким презентацијама запаљења средњег ува код деце узраста 3-8 година

Otitis media (OM), in both the acute (RAOM) and chronic (OME) forms affecting young children, plus the developmental consequences, are a large burden on families’ well-being and on healthcare systems. The burden comes from the large numbers with these very common conditions, rather than extreme individual cases. Past research on OM has mostly not well addressed the need for precise assessment of severity and statistical handling of case flow, via optimum referral and treatment decisions. The OM8-30 (with its short form OMQ-14) questionnaire is being standardised for Europe through the international clinical study Eurotitis- 2. I contributed nearly one quarter of the cases (22.6%) and was regional coordinator for about a further 8.8%, making an overall contribution of one third of the cases (31.4%), so was given access to the whole database under agreements in place, for answering my research questions. The first study moved on from the known seasonality of incidence of respiratory infection plus OM and used the severity measures from OM8-30 on different aspects of OM presentation. It asked: in cases all with OM diagnosis, do the measured severities of the several disease facets vary systematically through the year, after the typical autumn respiratory virus spread triggers an annual cycle? And do the timings of maximum severity in the single-consultation crosssectional data reflect the cause-related sequence from upstream respiratory infection, through ear infection score (ESS) and measured and reported hearing (HL and RHD) to downstream developmental outcomes? To answer this question with maximum precision, I worked with the study statistician to develop a method for locating annual peak severity which is labourintensive but robust: fitting a series of 27 lagged sinusoid functions I also developed a control framework fitting, as possible additive confounders, the background determinants of severity (particular centre, age, socioeconomic status (SES), length of history and particular diagnosis; sex was usually not significant). The novel results with these methods were clear for the upstream stages. The cross-sectional data show distinct annual cycles of case severity, with the ordering URTI(ESS, HL)RHD, and even close correspondence of estimated absolute delays with those in other true time-series (longitudinal) data. Season (or date) thus has to join the list of adjuster variables in the control framework underpinning standardisation...Акутне и хроничне запаљенске промене средњег ува највише погађају децу млађег зраста, а развојни проблеми који при томе настају су додатно оптерећење за породицу и целокупни здравствени систем. Оптерећење настаје због великог броја болесне деце са просечном тежином симптома пре него појединачних случајева са тешком клиничком сликом обољења. Досадашња истраживања нису на најбољи начин дефинисала потребу за прецизном евалуацијом тежине клинчке слике и статистичке контроле броја деце упућене на даље лечење и врсте примењеног терапијског третмана. OM8-30 упитник (и његова краћа форма OMQ- 14) је стандардизован у Европи кроз интернационални пројекат, Еуротитис 2. Ја сам допринела једној четвртини од укупног броја испитника (22.6%) и била регионални координатор за наредних 8.8% испитаника, што укупно чини 31.4% укупног узорка и стога добила приступ, уз сагласност свих ауторитета, бази података за проналажење одгвора на постављене циљеве истраживања. Прва од студија се бави сезонским аспектима болести и она је границу испитивања померила даље од уобичајеног утицаја сезоне на инциденцу респираторних инфекција и запаљења средњег ува ка испитивању утицаја сезоне на тежину различитих облика клиничке слике болести (аспеката) измерених применом OM8-30 упитника. Циљ ове студије: да ли код све деце са постављеном дијагнозом запаљења средњег ува тежина различитих аспеката болести систематски варира током године након почека циклуса вирусних респираторних инфекција током јесени? Такође, да ли време максималне тежине симптомa испитаника током студије пресека рефлектује узрочну везу са вирусним инфекцијама респираторних путева преко скорова упитника за симптоме средњег ува (ESS) и измереног и регистрованог прага слуха (HLи RHD) па до исходних, развојних, проблема деце?..

Supplementary material for the article: Andrić, J. M.; Stanković, I. M.; Zarić, S. D. Binding of Metal Ions and Water Molecules to Nucleic Acid Bases: The Influence of Water Molecule Coordination to a Metal Ion on Water–Nucleic Acid Base Hydrogen Bonds. Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials 2019, 75, 301–309. https://doi.org/10.1107/S2052520619001999

Suppelementary material for: [https://doi.org/10.1107/S2052520619001999]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/3675

Supplementary data for the article: Veljković, D. Ž.; Medaković, V. B.; Andrić, J. M.; Zarić, S. D. C-H/O Interactions of Nucleic Bases with a Water Molecule: A Crystallographic and Quantum Chemical Study. CrystEngComm 2014, 16 (43), 10089–10096. https://doi.org/10.1039/c4ce00595c

Supplementary material for: [https://doi.org/10.1039/c4ce00595c]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/1868

Binding of metal ions and water molecules to nucleic bases

Poster presented at Belgrade BioInformatics Conference 2018 - BelBi 2018, Belgrade, Serbia, June 18-22, 2018Belgrade BioInformatics Conference 2018 - BelBi 2018, Belgrade, Serbia, June 18-22, 2018, [http://belbi2018.matf.bg.ac.rs/]Abstract: [https://cer.ihtm.bg.ac.rs/handle/123456789/4861

Uticaj vremena zrenja i CaCl2 na kvalitet junećeg mesa

Investigations were carried out on four muscles (M. longissimus dorsi, M. semimembranosus, M. semitendinosus, M. biceps femoris) taken from five young cattle (crosses Domestic Spotted x Limousine) of average body mass prior to slaughtering of 587 kg. On all muscles, 24 h after slaughtering, sensory evaluation was carried out and the following parameters determined: pH value, colour, water binding ability, cooking loss and tenderness (initial values). The remaining part of each muscle was divided into 6 parts, 3 were packaged in plastic foil (control samples), and other 3 were soaked in solution containing 0,4% CaCl2 and 0,4% NaCl and packaged in plastic foil. Pieces of meat prepared in this way were left on temperature of + 40C 7, 14 and 21 days to mature. After this period, all mentioned analyses were carried out on meat samples. It was established that pH value during maturation increased, that meat packaged in plastic foil after 14 days of maturation becomes unusable, whereas the increase of pH values of meat whose maturation occurred in solution CaCl2 and NaCl was slower and therefore meat was still usable after 21 days. Color of meat in control samples was slightly lighter compared to initial condition, whereas the color of meat whose maturation occurred in solutions of salt was statistically considerably lighter (P (lt) 0,05 after 7 days, a P (lt) 0,001 after 14 and 21 days). Water binding ability in control samples was slightly better (P>0,05) after 7 days and after 14 days it was statistically significantly better (P (lt) 0,05) compared to initial state, whereas in meat whose maturation occurred in salt solution this ability was at initial level even after 21 days. Cooking loss in control samples was lower compared to initial values whereas in meat soaked in salt solution cooking loss was higher. Meat tenderness in control samples was statistically considerably better after 14 days of maturation (when meat was not fit for use) and in meat soaked in salt solution it was statistically highly significantly better after 14 and 21 days. According to sensory evaluation, control samples of meat, after 14 days of maturation are not fit for use, whereas meat whose maturation occurred in solution of CaCl2 and NaCl even after 21 days is acceptable from the sensory aspect.Ispitivanja su obavljena na četiri mišića (M. longissimus dorsi, M. semimembranosus, M. semitendinosus, M. biceps femoris) uzetih od pet junadi (melezi domaće šareno goveče x limuzin), prosečne mase pred klanje 587 kg. Na svim mišićima 24 sata posle klanja obavljena je senzorna ocena i određeni su: pH vrednost, boja, sposobnost vezivanja dodate vode, kalo kuvanja i mekoća (početne vrednosti). Ostatak svakog mišića podeljen je na 6 delova od kojih su po 3 upakovani u plastičnu foliju (kontrolni uzorci), a ostala 3 dela su potopljena u rastvor koji sadrži 0,4% CaCl2 i 0,4% NaCl i upakovani u plastičnu foliju. Ovako pripremljeni komadi mesa ostavljeni su pri temperaturi od + 40C 7, 14 i 21 dan na zrenju. Posle isteka zadatog vremena urađena su na komadima od svih mišića navedena ispitivanja.Utvrđeno je da se pH vrednost tokom zrenja povećava i da u mesu koje je upakovano u plastičnu foliju posle 14 dana zrenja dospeva u oblast kad je meso neupotrebljivo, dok je povećanje pH vrednosti kod mesa čije se zrenje odvijalo u rastvoru CaCl2 i NaCl sporije tako da je meso i posle 21 dan upotrebljivo. Boja mesa kod kontrolnih uzoraka bila je neznatno svetlija u odnosu na početno stanje, dok je boja mesa čije se zrenje odvijalo u rastvoru soli bila statistički značajno svetlija (P (lt) 0,05 nakon 7 dana, a P (lt) 0,001 nakon 14 i 21 dan). Sposobnost vezivanja vode kod kontrolnih uzoraka bila je neznatno (P>0,05) bolja nakon 7 dana dok je nakon 14 dana bila statistički značajno bolja (P (lt) 0,05) u poređenju sa početnim stanjem, dok je kod mesa čije se zrenje odvijalo u rastvoru soli i posle 21 dan bila na nivou početnog stanja. Kalo kuvanja kod kontrolnih uzoraka bio je manji u poređenju sa vrednostima na početku ogleda dok je kod mesa potopljenog u rastvor soli bio veći. Mekoća mesa kod kontrolnih uzoraka bila je statistički značajno bolja nakon 14 dana zrenja (kad je meso bilo neupotrebljivo) dok je kod mesa potopljenog u rastvor soli bila statistički visoko značajno bolja posle 14 i 21 dan. Prema senzornoj oceni kontrolni uzorci mesa nakon 14 dana zrenja postaju neupotrebljivi, dok je meso čije se zrenje odvijalo u rastvoru CaCl2 i NaCl i nakon 21 dan zrenja senzorno veoma prihvatljivo

Supplementary material for the article: Milovanović, M. M.; Andrić, J. M.; Medaković, V. B.; Djukic, J.-P.; Zarić, S. D. Investigation of Interactions in Lewis Pairs between Phosphines and Boranes by Analyzing Crystal Structures from the Cambridge Structural Database. Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials 2018, 74 (3), 255–263. https://doi.org/10.1107/S2052520618003736

Supplementary material for: [https://doi.org/10.1107/S2052520618003736]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2157

Supplementary data for the article: Andrić, J. M.; Misini-Ignjatović, M. Z.; Murray, J. S.; Politzer, P.; Zarić, S. D. Hydrogen Bonding between Metal-Ion Complexes and Noncoordinated Water: Electrostatic Potentials and Interaction Energies. ChemPhysChem 2016, 2035–2042. https://doi.org/10.1002/cphc.201501200

Supplementary material for: [https://doi.org/10.1002/cphc.201501200]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2289