European Union enlargement, post-accession migration and imaginative geographies of the ‘New Europe’: media discourses in Romania and the United Kingdom.

This paper is concerned with re-imaginings of ‘Europe’ following the accession to the European Union (EU) of former ‘Eastern European’ countries. In particular it explores media representations of post-EU accession migration from Romania to the United Kingdom in the UK and Romanian newspaper press. Todorova’s (1997) notion of Balkanism is deployed as a theoretical construct to facilitate the analysis of these representations as first, the continuation of long-standing and deeply embedded imaginings of the ‘East’ of Europe and, second, as a means of contesting these discourses. The paper explores the way in which the UK press construct Balkanist discourses about Romania and Romanian migrants, and then analyses how the Romanian press has contested such discourses. The paper argues that the idea of the ‘East’ remains important in constructing notions of ‘Europe’ within popular media geographies

Antifungalna aktivnost ekstrakata makrogljiva na fitopatogene sojeve gljiva rodova Fusarium sp. i Alternaria sp.

During the last decades, intensive application of synthetic fungicides in the agricultural crop protection practice caused growing concern for the existence of toxic chemical residues in food as well as in the whole environment. Instead of using synthetic fungicides, it is suggested that crop protection be carried out by using preparations based on compounds of natural origin (secondary metabolites of plants or microorganisms, including macrofungi from Basidiomycota) as biological control agents. The potential of macrofungal species as biocontrol agents was analyzed in this investigation of eight autochthonous species from different locations in Serbia. Both the terricolous species: Coprinus comatus, Coprinellus truncorum, Amanita strobiliformis, Hydnum repandum and the lignicolous species: Flammulina velutipes, Stereum subtomentosum, Trametes versicolor and Bjerkandera adusta were examined, with an aim to detect some novel sources of antifungal agents. This study surveyed antifungal activity of selected macrofungal extracts (MeOH, EtOH and CHCl3) against phytopathogenic Fusarium and Alternaria strains isolated from garlic, soybean and rice: F. proliferatum, F. verticillioides, F. proliferatum, F. graminearum and A. padwickii. Microdilution method in 96 well micro-plates was applied for the estimation of antifungal effects of macrofungi extracts in the range from 24.75 to 198.00 mg/ml and determination of minimal inhibitory (MIC) and minimal fungicidal concentration (MFC). EtOH extract of mychorhizal species H. repandum showed antifungal activity against all analyzed phytopathogenic strains, with the strongest effect on Fusarium strains (MIC 24.75 mg/ml; MFC 24.75 mg/ml). Among others, MeOH extracts of S. subtomentosum and C. micaceus showed similar effects while only B. adusta showed slight effect on Fusarium strains (MIC 24.75-99.00 mg/ml; MFC 24.75-99.00 mg/ml) and none effect on A. padwickii. The obtained results indicate the possibility of using examined extracts as efficient antifungal agents and provide the basis for the new formulations of biocontrol agents against phytopathogenic fungi in the future.Tokom poslednjih decenija intezivna primena sintetičkih fungicida u zaštiti poljoprivrednih useva izaziva sve veću zabrinutost ljudi zbog prisustva toksičnih hemijskih ostataka u prehrambenim proizvodima kao i celoj okolini. Umesto korišćenja sintetičkih fungicida, preporučuje se da se zaštita useva vrši korišćenjem preparata na bazi jedinjenja prirodnog porekla (sekundarni metaboliti biljaka ili mikroorganizama uključujući i makrogljive iz razdela Basidiomycota) kao agense biološke kontrole. U ovom radu istraživan je potencijal agenasa biološke kontrole za osam autohtonih vrsta makrogljiva s različitih lokaliteta u Srbiji. Obe, terikolne vrste: Coprinus comatus, Coprinellus truncorum, Amanita strobiliformis, Hydnum repandum i lignikolne vrste: Flammulina velutipes, Stereum subtomentosum, Trametes versicolor i Bjerkandera adusta su istražene s ciljem da se otkriju neki novi izvori antifungalnih agenasa. U okviru ovog rada istražena je antifungalna aktivnost odabranih ekstrakata makrogljiva (metanolni, etanolni i hloroformski) protiv fitopatogenih sojeva Fusarium i Alternaria izolovanih s belog luka, soje i pirinča: F. proliferatum, F. verticillioides, F. proliferatum, F. graminearum i A. padwickii. Za procenu antifungalnog efekta ekstrakata makrogljiva upotrebljena je mikrodiluciona metoda mikrotitar pločama s 96 velova u opsegu koncentracija od 24,75 do 198,00 mg/ml i determinaciju minimalne inhibitorne (MIC) i minimalne fungicidne koncentracije (MFC). Etanolni ekstrakt mikorizne vrste H. repandum pokazao je atifungalnu aktivnost prema svim analiziranim fitopatogenim sojevima, sa najjačim efektom prema sojevima Fusarium (MIC 24,75 mg/ml; MFC 24,75 mg/ml). Između ostalog, sličan efekat pokazali su i metanolni ekstrakti S. subtomentosum i C. micaceus, dok je samo B. adusta imala blagi efekat na sojeve Fusarium (MIC 24,75-99,00 mg/ml; MFC 24,75-99,00 mg/ml), ali ne i na A. padwickii. Dobijeni rezultati ukazuju na mogućnost korišćenja ispitanih ekstrakata kao veoma efikasnih antifungalnih agenasa i samim tim oni predstavljaju osnovu za nove formulacije biokontrolnih agenasa protiv fitopatogenih gljiva u budućnosti

Distribucija i forme mangana u vertisolima Srbije

Soil samples taken from the Ap horizont of arable land and meadows at ten different localities were analyzed for different forms of manganese, including total (HF), pseudo-total (HNO3), 0.1 M HCl-extractable and diethylentriaminepentaacetic acid (DTPA)-extractable. A sequential fractional procedure was used for Mn portioning into fractions: water soluble and exchangeable Mn (I), specifically adsorbed Mn with carbonates (II), reductant releasable Mn in oxides (III), Mn bonded with organic matter (IV) and Mn structurally bonded in silicates (residual fraction) (V). Serbian vertisols have a normal Mn content, comparable with similar soils. The total (HF) and pseudototal (HNO3) Mn contents were not correlated with soil properties, whereas the humus content positively influenced the 0.1 M HCl-extractable Mn in soil (r = 0.49). Soil pH and CaCO3 (r = 0.57 and 0.43) showed significant negative correlations with the DTPA-extractable Mn, respectively. The different extraction methods showed similar patterns of Mn content in arable and meadow soils. The sequential fractional procedure showed that reductant releasable Mn occluded in oxides of Fe and Mn was the prevailing Mn fraction in soil, however, water soluble and exchangeable Mn and Mn bonded with organic matter had significant correlations with most of the examined soil characteristics. Potential Mn toxicity in vertisols could be observed under lower pH and saturated conditions.U cilju određivanja različitih oblika mangana u vertisolima sa područja Srbije (oranice i livade) poreklom sa deset različitih lokaliteta analiziran je ukupan sadržaj mangana (HF), pseudo-ukupan sadržaj (HNO3), 0,1 M HCl rastvorljiv i DTPA rastvorljiv mangan. Sekvencijalnom ekstrakcijom izvršeno je razdvajanje frakcija mangana na rastvorljiv u vodi i razmenljiv mangan (I), specifično adsorbovan sa karbonatima (II), okludovan u oksidima (III), mangan vezan za organsku materiju (IV) i mangan strukturno vezan u silikatima (rezidualni deo) (V). Sadržaj mangana u analiziranom zemljištu (vertisol) poređen je sa dobijenim rezultatima na sličnim zemljištima. Ukupan sadržaj mangana (HF) i pseudo-ukupan sadržaj (HNO3) nisu bili u korelaciji sa ispitivanim svojstvima zemljišta, dok je sadržaj humusa pozitivno uticao na 0,1 M HCl rastvorljiv mangan(r = 0,49). Zemljišni pH i CaCO3 (r = 0,57 i 0,43) su pokazali visoko značajnu negativnu korelaciju sa DTPA rastvorljivim manganom. Različita ekstrakciona sredstva su ispoljila sličan efekat na sadržaj Mn u obradivom zemljištu i livadama. Sekvenciona ekstrakciona analiza je pokazala da mangan okludovan u oksidima čini procentualno najveću frakciju u zemljištu, istovremeno postoje statistički značajne korelacije između mangana rastvorljivog u vodi i mangana vezanog za organsku materiju i većine svojstava zemljišta. Potencijal ekotoksičnosti mangana se može ispoljiti samo u slučajavima niske pH vrednosti zemljišta i pojave zasićanja zemljišta sa vodom

Regression analysis of a ternary alloys system

TPD 2017In the mechanical and electrical properties of alloys research process an important role is three-component systems. Regression analysis allows that on the basis of experimental results define mathematical models depending on the size of the mole fraction of the individual components of the mixture. This paper presents an algorithm for the selection, evaluation and diagnosis of optimal mathematical model for the three-component system which contains following stages: • Input of experimental data • The summary statistics ofpossible mathematical models • Choice of stochastic models • ANOVA analysis - assessment ofthe significance ofthe model • Checking the adequacy ofthe mathematical model • The interval estimate of model parameters • Diagnostic models and, if necessary, the transformation model • Interval estimation of regression function • Graphic interpretation and interpretation ofthe model.The Ministry of Education and Science of the Republic of Serbiahttps://ftn.pr.ac.rs/Publishe

Analyses of Decimation Filter Stopband Attenuation Influence on Subjective Quality of Audio Signals

Decimation is a frequently used technique in audio signal processing. This paper investigates the influence of the values of stopband attenuation of decimation filters on the subjective perception of resulting audio signals. In practice, the demands for stopband attenuation of these filters are quite rigorous. The paper examines how justified these demands are from the psychoacoustic point of view. Basic procedure within such a research is a subjective test. Aside from objective parameters, the subjective evaluation is a method that can give insight into the characteristics of audio signal processing under testing. Results of subjective testing of the influence of different values of stopband attenuation on the perceptibility of interfering signal are presented for various audio signals. Two types of interfering signals were used in the subjective test. To increase the validity of psychoacoustic test, the probability of false detection of differences is measured by presenting subjects with equivalent signals. The results of subjective testing can prove to be useful in the design process of decimation filters for audio system applications

The role of Chinese investments in the bilateral exports of new E.U. member states and Western Balkan countries

This paper explores the economic relations between China and new E.U. member states and Western Balkan countries. China is an important trade partner for these countries, but in recent years the cooperation has been extended to include Chinese foreign direct investments (F.D.I.) inward investment. Using the Poisson pseudomaximum likelihood (P.P.M.L.) method to estimate a gravity model of bilateral trade, this study analysed the export flows of these countries as a function of total inward F.D.I. and Chinese F.D.I. as well. The results imply that F.D.I. inflows from China significantly increase the bilateral exports of the investigated countries, where F.D.I. has a greater impact on the exports of new E.U. member states than on Western Balkan countries

Large contribution to secondary organic aerosol from isoprene cloud chemistry

Aerosols still present the largest uncertainty in estimating anthropogenic radiative forcing. Cloud processing is potentially important for secondary organic aerosol (SOA) formation, a major aerosol component: however, laboratory experiments fail to mimic this process under atmospherically relevant conditions. We developed a wetted-wall flow reactor to simulate aqueous-phase processing of isoprene oxidation products (iOP) in cloud droplets. We find that 50 to 70% (in moles) of iOP partition into the aqueous cloud phase, where they rapidly react with OH radicals, producing SOA with a molar yield of 0.45 after cloud droplet evaporation. Integrating our experimental results into a global model, we show that clouds effectively boost the amount of SOA. We conclude that, on a global scale, cloud processing of iOP produces 6.9 Tg of SOA per year or approximately 20% of the total biogenic SOA burden and is the main source of SOA in the mid-troposphere (4 to 6 km)

Modelling the long-term dynamics of the energy transition accounting for socioeconomic behaviour and biophysical constraints: overview of the Wiliam Energy Module

WILIAM (Within Limit Integrated Assessment Model) is a global multiregional IAM that combines economic, social, demographic, environmental, energy and material related aspects into one system dynamics model. It aims to provide stakeholders with an open source, welldocumented model to assess the feasibility, effectiveness, costs and impacts of different sustainability policy options. The adequate representation of energy production is key to assess future sustainability pathways. The main function of the developed energy module is to estimate the primary energy requirements and related GHG emissions for satisfying the economic demand. This goal was achieved by 7 major sub-modules: (1) End-use: translates the economic demand into final energy demand through a hybrid approach combining bottom-up with energy intensities for different sectors. (2) Energy transformation: maps the entire energy conversion chain from final to primary energy, including intermediary energy commodities and an allocation function for power plant utilization. (3) Energy capacity: keeps track of the current power plant capacity stock, decommissioning of expired capacities, as well as the build-up of new capacities. An allocation function for choosing the suitable technology types for new capacities stands at the core of this sub-module. (4) Computation of the EROI of green technologies (5) Variability and storage: keeps track of sub-annual time scale effects on annual energy balances depending on the current power system setup (DSM, Storage, sector coupling). (6) Consideration of techno-sustainable potentials of RES considering geographical, resource and Energy Return on Energy Investment (EROI) constraints. (7) Computation of the energy-related GHG emissions

Ternary graph and its application in regression analysis

IMK 14 - 2005Ternary graph se koristi u regresionoj analizi za vizuelno prikazivanje etvorodimenzionalnih problema. U radu je dat opis Ternary graph-a, postupak transformacije podataka i postupak određivanja koeficijenata regresione linije za pretpostavljeni oblik višestruke regeresije.https://www.imk14-rad.com/index.php/sr/Publishe