Kreativan grad - izazovan koncept

Culture and creativity were always an essential part of city growth, but today they are integrated in the life of cities as a part of official strategies or as an action of a group of artists and people, working in the cultural and creative industries. Culture and creativity form part of many concepts of urban development promoted as an acceptable response to the challenges of globalization. As a part of urban development policy, they are expected to enable sustainable development, and they rely on human potential, local comparative advantages and development of technologies. The main principles of these concepts are communication, social networks, technology, adaptability, concentration, synergy and inclusion. As any paradigm, creative cities are challenged on many levels, in theory and in practice. Using culture and creativity as a resource and marketing value should be thoughtful, since it can have a significant impact on society. This paper will present some arguments about policies and critics of creative cities, as well as the required preconditions, organizational forms, their development path and relation to inclusion. This paper will present the case study of Savamala, as an example of urban regeneration through creating a cultural and creative quarter in Belgrade, and within a method of multicase study, include two more examples of cultural and creative strategies, the cases of Shanghai and Copenhagen, and by analyzing top-down and bottom-up initiatives, some conclusions about potentials and risks of those strategies will be drawn.Kultura i kreativnost su uvek predstavljali bitan deo razvoja gradova, ali su danas postali deo zvaničnih politika ili akcija grupa umetnika i ljudi koji rade u kulturnim i kreativnim industrijama. Kultura i kreativnost su deo brojnih koncepata urbanog razvoja koji se promovišu kao prihvatljiv odgovor na izazove globalizacije. Od ovih politika urbanog razvoja se očekuje da obezbede održivi razvoj gradova jer se oslanjaju na ljudski potencijal, lokalne komparativne prednosti i razvoj tehnologija. Osnovni principi ovih koncepata su komunikacija, društvene mreže, tehnologija, prilagodljivost, koncentracija, sinergija i inkluzija. Kao i svaka paradigma, kreativni gradovi se osporavaju na mnogim nivoima, u teoriji i u praksi. Upotreba kulture i kreativnosti kao resursa i robe na tržištu zahteva pažljiv pristup, jer može imati značajan uticaj na društvo. ovom radu e biti predstavljeni argumenti za i protiv politika kreativnih gradova, kao i potrebni preduslovi, organizacioni oblici, njihov razvojni put i odnos prema inkluziji. Ovaj rad e, metodom studije više slučaja, prikazati dva primera spontano nastalih kulturnih klastera, koji su pokrenuli urbanu obnovu četvrti u Beogradu i Šangaju i primer Kopenhagena, kreativnog grada koji se razvija brižljivo vođenom politikom i kroz ovu analizu e se predstaviti zaključci o prednostima i nedostacima razmatranih pristupa

Creative city challeging concept "all for one - one for all"

Culture and creativity are today integrated in cities everyday life, as part of official strategies or as action of group of artists and people working in cultural and creative industry. Culture and creativity are part of many concepts of urban development promoted as an acceptable response to the challenges of globalisation. If we speak of Cultural, Creative, Inclusive, Smart, Cognitive city, or any other similar concept, it is always about creating better conditions for living and creativity. Creative cities are based on communication, social networks, technology, with principles of adaptability, synergy and inclusion. As any paradigm, creative cities are challenged on many levels, in theory and in practice. It should be considered as wary important that use of culture and creativity as resource can have significant impact on society. Some arguments for and against creative cities will be presented in this paper, especially according its influence on the public space, individual rights and inclusion. This paper will present case study of Savamala, cultural and creative neighbourhood in Belgrade, as an example of public involvement and creating public space in creative city

Hedging – Possibilities of Risk Management in Agriculture

The scope of agricultural production is to a great extent affected by volatile risks. This paper presents possibilities that financial markets provide to manage such risks. It minutely describes basic derivatives, futures and options, with a special focus on their use on agricultural commodities. The paper further describes probably the most popular futures – weather futures. Furthermore, the authors deal with complex and cross-hedging strategies. The last section brings the analysis of possibilities of establishing a derivatives market in Serbia. The first step towards this goal is to set up a commodity market and adopt related legislation, but also to meet other preconditions, such as to establish a licensing system, simplify trade with foreign entities, establish a system of clearing, develop a framework for extra-judicial settlement and to work on internationalisation of trade. Once these preconditions are met, it would be possible to establish an agricultural commodity derivatives trading system

THE IMPACT OF AUTOMATED TRADING SYSTEMS ON FINANCIAL MARKET STABILITY

The way in which financial markets operate has substantially been changed by the development of information technology. Automation of trading systems in financial markets represents the last phase of depersonalizing activities previously done by traders. Algorithmic trading development enabled computers to determine the moment and the way of executing sales orders. Computers still do not make autonomous decisions regarding the choice of instruments to be traded or trading criteria. They implement the strategy a trader has decided on, choosing a favorable moment. This reduces the impact of human emotions on decision making and enables overcoming possible problems which arise due to neglecting or lack of concentration. High-frequency trading enables the execution of algorithmic operations at a high speed. The main goal of the paper is to determine advantages and dangers produced by algorithmic stock trading

Morphological and clinical correlations in different forms of dystonia

Distonija predstavlja heterogeno oboljenje, kako po pitanju fenotipskog ispoljavanja, tako i po pitanju etiologije. Pored dobro poznatih motornih karakteristika (akciono pojačanje, fenomeni prelivanja i mirror pokreta, itd), nedavno su prepoznati i različiti nemotorni simptomi, uključujući psihijatrijske smetnje. Iako su rezultati neurovizuelizacionih studija kontradiktorni, u različitim formama distonije su pokazane promene u bazalnim ganglijama (BG), senzorimotornom korteksu i cerebelumu, kao i u cerebelotalamokortikalnim putevima. Najnoviji stavovi ukazuju na to da distonija predstavlja „bolest mreže“ i da može nastati usled disfunkcije ili poremećene komunikacije između bilo kojih tačaka u mreži. Ciljevi: Osnovni ciljevi studije su: 1) Ispitivanje obrasca fenotipskog ispoljavanja i karakteristika kliničkog toka u različitim formama distonije (fokalne-FokD, genetski definisane-GenD i funkcionalne distonije-FunkD); 2) Analiza psihijatrijske osnove, tj. psihijatrijskih komorbiditeta i procena profila ličnosti kod obolelih od funkcionalne distonije u poređenju sa obolelima od „organske distonije“; 3) Ispitivanje specifičnosti obrasca morfoloških i funkcionalnih promena u različitim formama fokalne distonije; 4) Ispitivanje strukturnih promena u genetskim formama distonije; 5) Ispitivanje morfoloških i funkcionalnih izmena u funkcionalnoj distoniji. Metode: U studiju je uključeno 205 bolesnika sa dijagnozom distonije, od toga 116 FokD, 41 GenD, 48 FunkD, koji su dalje uključeni u različite modalitete ispitivanja. Prvo se pristupilo analizi fenotipskog ispoljavanja, u okviru kojeg je u grupi FunkD korišćena klaster analiza, kao i prospektivno praćenje za definisanje dva različita fenotipa. Zatim je rađeno ispitivanje psihijatrijskih komorbiditeta i profila ličnosti u grupi FunkD u poređenju sa „organskom“ (primarnom) distonijom PrimD (FokD i GenD bolesnici upareni po polu, uzrastu i distribuciji distonije) korišćenjem široke palete neuropsihijatrijskih upitnika, uz psihijatrijski pregled. Drugi deo studije se odnosio na neurovizuelizacione metode. U sve 3 grupe bolesnika i u grupi zdravih kontrola (ZK) (83 ispitanika) rađeno je magnetno rezonatno (MR) snimanje mozga i pri tome su dobijeni trodimenzionalni T1 snimci, difuzioni tenzorski (DT) snimci, i funkcionalna MR u mirovanju. Procenjena je debljina korteksa pomoću morfometrije zasnovane na površini, supkortikalni volumeni sive mase (SM), DT MR merenja bele mase (BM). Ispitana je funkcionalna MR u mirovanju korišćenjem slobodnog pristupa. Zatim je u grupi FunkD ispitano funkcionalno povezivanje određenih regiona od interesa koji čine deo emocionalno-kognitivne mreže i učestvuju u definisanju motornog fenotipa. Rezultati: Analiza fenotipa: Bolesnici sa fokalnim distonijama su ispoljili očekivane fenotipske karakteristike, dok su nosioci genetskih mutacije prezentovali značajnu fenotipsku heterogenost, čak i unutar porodica. U grupi FunkD definisana sa dva različita fenotipa. Jedan fenotip – fiksne distonije (FiksFunkD) karakteriše početak simptoma u sredini tridesetih godina života, izražen bol, rani fiksni, abnormalni položaj koji uglavnom zahvata ekstremitete, često udružen sa sindromom kompleksnog regionalnog bola, sa progresivnom deterioracijom simptoma. Drugi fenotip – mobilne distonije (MobFunkD) karakterišu statičke ili akcione intermitentne mišićne kontrakcije koje uzrokuju abnormalne položaje i pokrete, uglavnom, ali ne isključivo, sa kranijalnom i cervikalnom distribucijom, uz relapsno-remitentan klinički tok. Psihijatrijska osnova: Gotovo polovina bolesnika sa FunkD je lečena psihijatrijski pre pojave distoničnih simptoma, a najčešći psihijatrijski komorbiditet je depresivni poremećaj, kako pre početka pojave distoničkih fenomena, tako i tokom trajanja FunkD. U poređenju sa PrimD, kod bolesnika sa FunkD značajno češće je zabeležen precipitirajući stres, viši skorovi na skalama za procenu apatije, disocijativnih i somatoformnih fenomena, kao i prisustvo znaka La Belle Indifférence. Kao nezavisni prediktori FunkD izdvojili su se znak La Belle Indifférence, stres pre početka distonije i prethodno psihijatrijsko oboljenje. Bolesnici sa FunkD su imali nižu ekstroverziju i otvorenost ka iskustvu nego pacijenti sa PrimD...Dystonia is a heterogeneous disorder, both in terms of phenotypic manifestation and etiology. In addition to well-known motor characteristics (action reinforcement, overflow phenomena, mirror movements, etc.), non-motor symptoms, including psychiatric disorders, have recently been recognized recently. Although the results of neuroimaging studies are conflicting, changes in basal ganglia (BG), sensorimotor cortex and cerebellum, as well as cerebello-thalamo-cortical pathways have been shown in various forms of dystonia. The new model indicates that dystonia is a "disorder of network" that can occur due to dysfunction of one node or more nodes, or disturbed communication between them. Objecitves: The main objectives of our study are: 1) to examine the pattern of phenotypic expression and clinical course in various forms of dystonia (focal dystonia-FocD, genetically defined dystonia- GenD and functional dystonia-FuncD); 2) to analyse the psychiatric background, i.e. psychiatric comorbidity and personality profile in patients with FuncD compared to those with "organic” dystonia; 3) to investigate the specificity of the pattern of morphological and functional brain changes in different forms of focal dystonia; 4) to investigate morphological changes in hereditary dystonia; 5) to investigate morphological and functional brain changes in functional dystonia Methods: The study included 205 patients diagnosed with dystonia (116 FocD, 41 GenD, 48 FuncD) who were further involved in different modalities of examination. First, the analysis of phenotypic expression was done. Cluster analysis and follow-up study were used for definition of two different phenotypes of FuncD. Then, psychiatric comorbidity and personality profile in FuncD group were compared with "organic" primary dystonia PrimD (FocD and GenD patients matched by sex, age and distribution of dystonia) using a number of neuropsychiatric questionnaires, and psychiatric interview. The second part of the study concerned neuroimaging methods. Three different groups of patients and the group of healthy controls (HC) underwent three-dimensional T1-weighed, diffusion tensor (DT) MRI, and resting-state functional MRI (RS-fMRI). We assessed cortical thickness with surface-based morphometry, subcortical volumes using region of interest, and DT MRI and RS fMRI using a free model approach. Further, in the FuncD group, the functional connectivity of certain regions of interest that form the emotional-cognitive network and are involved in the definition of motor phenotype were examined using “seed”-based approach. Results: Phenotype analysis: Patients with focal dystonia exhibited the expected phenotypic characteristics, while genetic mutation carriers presented significant phenotypic heterogeneity, even within families. Two different phenotypes were defined in the FuncD group. One phenotype –fixed dystonia (FixFuncD) was characterized by the onset of symptoms in the middle of the thirties, prominent pain, early fixed, abnormal posture that mainly involves extremities, often associated with a complex regional pain syndrome, with progressive deterioration of symptoms. Another phenotype – mobile dystonia (MobFuncD) was characterized by static or action intermittent muscular contractions that cause abnormal postures and movements, mainly but not exclusively, with cranial and cervical distribution, with relapse-remitting clinical course. Psychiatric background: Almost half of patients with FuncD had been treated psychiatrically prior to dystonia onset. The most common psychiatric comorbidity was a depressive disorder, both before the onset of dystonia and actually. Precipitating stress, higher scores on the apathy, dissociative and somatoform scales, and the presence of the La Belle Indifférence sign were significantly more frequent in patients with FuncD in comparison with PrimD. La Belle Indifférence sign, stress before the onset of dystonia and previous psychiatric disorder were independent predictors of FuncD. Patients with FuncD had lower extroversion and openness to experience than patients with PrimD Structural and functional characteristics of focal dystonia: Findings characteristic for task nonspecific dystonia (TNSD) were focal cortical changes (atrophy of the right inferior frontal gyrus) and reduced resting-state functional connectivity within the left frontoparietal network..

Left ventricular noncompaction: Clinical-echocardiographic study

Background/Aim. Left ventricular noncompaction (LVNC) is a disorder in endomyocardial morphogenesis, seen either isolated (in the absence of other cardiac anomalies) or in association with congenital heart disease and some neuromuscular diseases. Intrauterine arrest of the compaction of myocardial fibers is postulated to be the reason of LVNC. Recognition of this condition is extremely important due to its high mortality and morbidity that lead to progressive heart failure, ventricular arrhythmias and thromboembolic events. The aim of this study was to determine the prevalence and clinical presentation of LVNC among consecutive outpatients according to clinical and echocardiographyic findings. Methode. A total of 3,854 consecutive patients examined at the Institute for Cardiovascular Diseases within a period January 2006 - January 2007 were included in the study. All the patients underwent echocardiographic examination using the same equipment (Vivid 7, GE Medical System). Echocardiographic parameters and clinical presentation in patients with echocardiographic criteria for LVNC were analyzed. Results. Analyzing 3,854 consecutive outpatients, using two-dimensional Color Doppler echocardiography from January 2006 to January 2007, 12 patients met the criteria for LVNC. Seven of them were male. The mean age at diagnosis was 45 ± 15 years. Analyzing clinical manifestation of LVNC it was found that seven patients had signs of heart failure, six had arrhythmias with no embolic events. Conclusion. Our results suggest that the real prevalence of LVNC may be higher than expected. New studies have to be done to solve this problem

Outage minimization of energy-harvesting wireless sensor network supported by UAV

Due to their adaptability, mobility, and capacity to offer an ideal channel, unmanned aerial vehicles (UAVs) have become a potential option for wireless power transfer and data collection in wireless sensor networks (WSNs). This paper examines energy-constrained WSNs, where data transfer to the data center is facilitated by UAV and sensors rely on radio frequency (RF) energy obtained by a Power Beacon (PB). However, due to energy limitations, sensors can only send data using the harvested energy. We consider a WSN in which the nodes are randomly distributed within a circular area, with the PB placed at the center of the WSN. To evaluate the system performance, we consider the dynamic nature of the wireless channel, which includes factors such as signal reflection, scattering, and diffraction. Through numerical analysis and simulations, the main aim is to identify the optimal system parameters that minimize the outage probability. This analysis provides valuable insights for designing more effective and reliable energy-harvesting WSNs with UAV as data collector. By leveraging UAV in WSNs, system performance can be improved, ensuring data transmission to destination nodes placed at a large distance from the WSN

Application of artificial neural networks for modelling oxygen parameters of surface water quality

Održivo korišćenje i očuvanje prirodnih resursa postalo je imperativ modernog društva. Brojni antropogeni uticaji doveli su do pogoršanja kvaliteta slatkovodnih resursa, a naročito vodotokova koji predstavljaju jedan od glavnih izvora vodosnabdevanja. Evropske i nacionalne regulative uslovile su obavezu kontinuiranog praćenja stanja površinskih voda u vidu uspostavljanja i održavanja lokalnih i državnih mreža za monitoring kvaliteta voda, u cilju donošenja odluka zasnovanih na adekvatnim informacijama i pravovremenog reagovanja. U poslednje vreme, često se primenjuju modeli i odgovarajuće simulacione tehnike koje su sposobne da reše nelinearne probleme složenih sistema kao što je predviđanje parametara kvaliteta voda...Sustainable use and protection of natural resources have become an imperative of modern society. Numerous anthropogenic impacts have brought to deterioration of the quality of freshwater resources, especially watercourses, which represent one of the main water supply sources. European and national regulations have set requirements for continuous monitoring of the state of surface waters by establishing and maintaining local and state water quality monitoring networks, in order to provide adequate and informed decisionmaking as well as timely response. Lately, models and corresponding simulation techniques that are able to solve problems of non-linear complex systems, such as prediction of water quality parameters, are being often applied..

CREATIVE CITY: CHALLENGING CONCEPT

Culture and creativity were always an essential part of city growth, but today they are integrated in the life of cities as a part of official strategies or as an action of a group of artists and people, working in the cultural and creative industries. Culture and creativity form part of many concepts of urban development promoted as an acceptable response to the challenges of globalization. As a part of urban development policy, they are expected to enable sustainable development, and they rely on human potential, local comparative advantages and development of technologies. The main principles of these concepts are communication, social networks, technology, adaptability, concentration, synergy and inclusion. As any paradigm, creative cities are challenged on many levels, in theory and in practice. Using culture and creativity as a resource and marketing value should be thoughtful, since it can have a significant impact on society. This paper will present some arguments about policies and critics of creative cities, as well as the required preconditions, organizational forms, their development path and relation to inclusion. This paper will present the case study of Savamala, as an example of urban regeneration through creating a cultural and creative quarter in Belgrade, and within a method of multicase study, include two more examples of cultural and creative strategies, the cases of Shanghai and Copenhagen, and by analyzing top-down and bottom-up initiatives, some conclusions about potentials and risks of those strategies will be drawn

Mogućnost primene alternativnih žita (prosa i ječma) za poboljšanje tehnološkog kvaliteta hleba od brašna loših tehnoloških osobina

The aim of the study was to examine does it possible to improve bread properties of the bread based on wheat flour of poor technological quality by substitution of barley and millet flour. For that purpose were examined chemical properties of raw materials (Wheat flour of extremely poor technological quality (WFPQ), dehulled wholegrain barley flour (DWBF) and decorticated millet flour (DMF)), as well as rheological properties of doughs (WFPQ flour and mixtures of DWBF and DMF with WFPQ in ratios 10:90 and 30:70) and end-use quality of control and composite breads. The substitution of the small amount of WFPQ with DMF (10%) improved most of the bread properties, whereas the sensory properties stay almost the same. Also, substitution of the high amount of DMF (30 %) neither showed effects of improvement and worsening for to the most of technological properties. On the other hand, substitution with DWBF has negative impact on the most technological properties of composite bread.Cilj ovog istraživanja je bio da se ispita mogućnost primene brašna od ječma i prosa za poboljšavanje tehnoloških osobina hleba proizvedenog od brašna lošeg tehnolološkog kvaliteta supstitucijom određenog procentualnog udela u osnovnoj recepturi hleba. Zbog toga je ispitan hemijski sastav sirovina (pšeničnog brašna izuzetno lošeg tehnološkog kvaliteta (WFPQ), integralnog brašna od oljuštenog ječma (DWBF) i integralnog brašna od oljuštenog prosa (DMF)), reološke osobine testa (od WFPQ i smešama od DWBF i DMF sa WFPQ u odnosu 10:90 i 30:70) i tehnološke osobine kontrolnog i mešanih hlebova (zapremina hleba, spec. zapremina hleba, visina vekne, boja kore i sredine, Texture Profile Analyses (TPA) sredine hleba i senzorna analiza hleba). Zamenom male količine WFPQ sa DMF (10%) poboljšane su tehnološke osobine hleba: zapremina, visina vekna, boja kore i TPA pokazatelji; dok su senzorne osobine hleba ostale skoro iste kao kod kontrolnog hleba. Takođe, zamenom veće količine DMF (30%) nije se dobilo niti poboljšanje niti pogoršavanje većine tehnoloških pokazatelja. Supstitucijom DWBF u osnovnoj recepturi hleba poboljšali su se neki reološki pokazatelji i boja kore, dok je većina tehnoloških pokazatelja mešanog hleba bila lošija od kontrolnog hleba. Može se očekivati da će zamenom veće količine WFPQ sa DMF i DWBF doći do boljeg poboljšavanja nutritivnih osobina hleba nego u slučaju zamene male količine DMF i DWBF jer su hemijske analize pokazale da su DMF i DWBF boljih nutritivnih osobina od WFPQ