ADAPTATION OF THE HP LIFE PROGRAM FOR PROMOTION OF THE ENTREPRENEURSHIP AMONG YOUNG PEOPLE

This text is dealing with attempt of Management department, of Technical faculty in Bor, todevelop and further sustain the „entrepreneurial spirit“among young people. The subject of the paperis the HP LIFE program, in which Technical faculty in Bor is the only partner institution from Serbia.Besides up-to-date IT equipment obtained by Hewlett Packard in previous phases of this project,during 2012 this project was financially sustained by the Serbian institution „Centre for promotionof science“. This support will increase the scope of project activities during this year, including newtarget groups

ANALYSIS OF BUSINESS ENVIRONMENT USING THE MULTI-CRITERIA APPROACH – CASE OF BALKAN’S TRANSITION ECONOMIES

Due to the lack of their own financial resources, attracting the foreign direct investment (FDI) isthe main prerequisite for transitional economies in order to increase production and employment, sothat they can ensure the long term sustainable economic growth. In addition, the foreign directinvestment is an important instrument for the economy restructuring, based on market principles.However, achieving this goal is not simple at all. In order to attract foreign investors, it is necessaryto create a favorable business environment in transition countries, which requires a number ofeconomic, institutional, political and other reforms. The aim of this paper is to point out the mainfactors attracting foreign direct investment and, by using the multi-criteria approach, to rank theBalkan’s transition economies depending on the preferences of investors taking into account certaincomponents of the business environment

Finansowe, bilansowe i podatkowe konsekwencje ataku typu ransomware

Ransomware is a prime cybersecurity threat at the moment. In this paper we analyze financial implications of ransomware attacks, motivation of the ransomware victim to pay ransom, and legal, accounting and tax implications of such payment. The methodological approach used in the study is a combination of formal-dogmatic method and argumentative literature review. First, we provide an overview of all potential losses which could be incurred by the ransomware attack. Further, we analyze under which conditions is legal to pay any kind of ransom, including cyber ransom, as an organization as well as which other considerations victims should consider when deciding to pay ransom. In that respect we analyze accounting and tax implications of losses inflicted by the ransomware attack, putting special attention to the ransom payments.Oprogramowanie typu ransomware jest obecnie istotnym zagrożeniem w zakresie cyberbezpieczeństwa. W niniejszym artykule analizujemy finansowe konsekwencje ataków typu ransomware, a także motywy zapłaty okupu przez ofiarę takiego ataku oraz prawne, bilansowe i podatkowe konsekwencje takiej zapłaty. Podejście metodologiczne zastosowane w pracy stanowi połączenie metody formalno-dogmatycznej z metodą krytyki literatury. Na początku opisujemy wszelkie potencjalne straty, jakie mogą wynikać z ataku ransomware. Następnie poddajemy analizie warunki, w których zapłata przez jednostkę organizacyjną okupu jakiegokolwiek rodzaju, w tym wymuszonego drogą komputerową, jest legalna, a także inne względy, które ofiara musi wziąć pod uwagę, decydując się na zapłatę okupu. W tym zakresie analizujemy bilansowe i podatkowe implikacje strat poniesionych na skutek ataku ransomware, ze szczególnym uwzględnieniem zapłaty okupu

Negativan uticaj bezbednosnih aspekata nacionalne legislative na efektivno/efikasno korišćenje bespilotnih letelica/sistema u arhitekturi/urbanizmu

Mnoge zemlje širom sveta ubrzano usvajaju sopstvene – nacionalne zakonske okvire vezane za upravljanje i upotrebu bespilotnih letelica/sistema (tj. pripadajuće regulatorne i kontrolne mehanizme) i pokušavaju da ih kontinuirano unapredjuju, kako bi na vreme bile sprečene raznovrsne neovlašćene i bezbednosno opasne aktivnosti najrazličitije prirode (izmedju ostalog, i one na socio-psihološkom planu) i to blagovremenim identifikovanjem što većeg broja potencijalno ugroženih strana. Aktuelno predmetno srpsko zakonodavstvo generalno je uskladjeno sa onim u EU i nastalo je kombinovanjem direktiva EASA-e i DCV-a, kako bi se zadovoljili i nacionalni zahtevi. Striktnost u njihovom sprovodjenju, uključujući i različite vidove bezbednosnih ograničenja (zakonodavne i birokratske prirode), posebno kada su aktivnosti bespilotnih letelica/sistema planirane u centralnim gradskim zonama ili uslovno zabranjenim zonama za letenje, prepoznati su u ovom radu kao glavni faktori koji negativno utiču na efektivnost i efikasnost njihovog korišćenja u arhitekturi/urbanizmu – dovodeći, čak, u pitanje i realizaciju tih aktivnosti (zbog izuzetno „osetljivih”, složenih i dugotrajnih procedura autorizacije letova, kao i propratnih zahteva administrativne prirode). Glavni cilj istraživanja je identifikovanje onih bezbednosnih aspekata delovanja regulatornih i kontrolnih mehanizama koji negativno utiču na sveukupno efektivno/efikasno korišćenje bespilotnih letelica/sistema u domenu arhitektonsko-urbanističke prakse, sa posebnim osvrtom na uticaj tih mehanizama na razmatrane pre-letačke, letačke i post-letačke aktivnosti. Da bi navedeno bilo i realizovano na naučnoj osnovi, definisana je odgovarajuća istraživačka metodologija: postavljeni su kriterijumi valorizacije, istraženo relevantno nacionalno zakonodavstvo sa predmetnog aspekta i precizno identifikovani problemi bezbednosne prirode. Potom je izvršena njihova kategorizacija da bi, najzad, rezultati istraživanja bili medjusobno ukrštani, diskutovani i, posledično, definisani naučno-održivi zaključci

Improvement possibilities of the I-V characteristics of PIN photodiodes damaged by gamma irradiation

This paper presents the behavior of PIN photodiodes after combined gamma and neutron irradiation. Different types of PIN photodiodes have been exposed first to gamma and then to neutron irradiation. I-V characteristics (current dependence on voltage) of photodiodes have been measured after each of these irradiations. It has been noted that the photocurrent level after the neutron irradiation is higher than before it, which is not consistent with the current theories about the effects of neutron radiation on semiconductors. In order to explain this behavior of the photodiodes, the Monte Carlo simulation of photon transport through the material has been used. It is proposed that a possible cause for current enhancement are defects in semiconductor created by gamma irradiation and effects of neutron irradiation on these defects. The results can be explained by an intercentre transfer of charge between defects in close proximity to each other. The aim of this paper is to investigate the improvement possibilities of the I-V characteristics of PIN photodiodes, and photodetectors in general, damaged by gamma irradiation. [Projekat Ministarstva nauke Republike Srbije, br. 171007

Electrochemical separation of 90-yttrium in the electrochemical 90Sr/90Y generator and its use for radiolabelling of DOTA-conjugated somatostatin analog [DOTA0, Tyr3] octreotate

Radiopharmaceuticals based on 90Y are widely used in the treatment of malignant deseases. In order to meet the requirements for their future application, a 90Sr/90Y generator was developed and 90Y eluted from this locally produced generator was used for the radiolabelling of the DOTA-conjugated somatostatin analog [DOTA0,Tyr3] octreotate and the preparation of [90Y-DOTA0,Tyr3] octreotate (90Y-DOTATATE) for peptide receptore radionuclide therapy. 90Sr/90Y generator was based on the electrochemical separation of 90Y from 90Sr in a two-cycle electrolysis procedure. Three electrode cells were used to perform both electrolyses. In both cycles, working electrodes were kept on constant potential. The pH of the solution was adjusted to 2.7 of the value before the electrolyses. The radionuclidic purity of the 90Y solution was analysed by ITLC and extraction paper chromatography. The labelling of peptide (100 mg DOTATATE) with 90YCl3 was performed at 95°C for 30 minutes. Radiochemical purity was determined by HPLC and chromatographic separation, using a solid SepPak C-18 column. Results obtained confirmed the efficiency of our electrochemical separation technique and quality control methods for 90Y. The achieved efficiency of the 90Sr/90Y generator above 96% of the theoretical value represents a good basis for the further development of this generator. The labelling of the DOTATATE with 90Y exhibited a high efficiency, too: there was less than 1% of 90Y3+in the 90Y-DOTATATE

It begins with a boundary: A geometric view on probabilistically robust learning

Although deep neural networks have achieved super-human performance on many classification tasks, they often exhibit a worrying lack of robustness towards adversarially generated examples. Thus, considerable effort has been invested into reformulating Empirical Risk Minimization (ERM) into an adversarially robust framework. Recently, attention has shifted towards approaches which interpolate between the robustness offered by adversarial training and the higher clean accuracy and faster training times of ERM. In this paper, we take a fresh and geometric view on one such method -- Probabilistically Robust Learning (PRL) (Robey et al., ICML, 2022). We propose a geometric framework for understanding PRL, which allows us to identify a subtle flaw in its original formulation and to introduce a family of probabilistic nonlocal perimeter functionals to address this. We prove existence of solutions using novel relaxation methods and study properties as well as local limits of the introduced perimeters

Monitoring of the Surface Ozone Concentrations in the Western Banat Region

This paper presents the results of measuring the concentrations of ozone, VOCs (benzene, toluene, m- and p-xylene, o-xylene and ethylbenzene), nitrogen oxides (NO, NO2 and NOx), CO, H2S, SO2 and PM10 in the ambient air in parallel with recording the meteorological parameters: temperature, solar radiation, relative humidity, barometric pressure, wind speed and direction during the year 2009. The measurements were performed at the measuring station located within an agricultural area near the city of Zrenjanin (Serbian Banat, Serbia). The results are presented in this paper as average values in winter and summer vs. time of day, and as average daily values vs. measurement date. Several correlations of the ozone concentration vs. atmospheric observables were made, together with Principal Component Analysis. The statistical analysis of the obtained data, based on Principal Component Analysis (PCA), led to result that 80.87 % of the variance in the measured values could be described with five factors. A high level of intercorrelation of VOCs, NOx and CO was determined. These pollutants were all grouped in factor 1, which described 42.85 % of variances of the measured values. According to the VOCs/NOx and VOCs/CO ratios (which were 0.26 and 0.029, respectively), it was determined that production of tropospheric ozone is a VOCs sensitive process for the investigated region

EFEKTI OBJEKTIVNOG I SUBJEKTIVNOG ODREĐIVANJA TEŽINA KRITERIJUMA U VIŠEKTIRTRIJUMSKOM DONOŠENJU ODLUKA

Cilj ovog rada je da se prikaže na koji način pristup u određivanju težina kriterijuma, kod višekriterijumskog donošenja odluka, utiče na konačni poredak alternativa. Naime, u procesu optimizacije tehničkog procesa pasterizacije mleka, na podatke dobijene merenjima parametara u procesu, primenjena je TOPSIS (Technique for Order Preference by Similarity to Ideal Solution ) višekriterijumska metoda kako bi se odabrala najbolja kombinacija ulaznih parametara. Ulazni podaci u primeni TOPSIS metodologiije su i težine kriterijuma koje su određivane objektivnim (CRITIC i Entropijska metoda) i subjektivnim metodama (AHP- Analytic Hierarchy Process). Dobijeni reziltati su upoređeni kako bi se utvrdila uloga težinskoh koeficijenata u donošenju odluka

Clinical and microbiological effects of quadrant versus full-mouth root planing-A randomized study

Background/purpose: Periodontitis is a destructive inflammatory disease of the tooth-supporting tissues caused mainly by Gram-negative microorganisms. Disruption and removal of the subgingival biofilm are the primary objectives of cause-related initial periodontal therapy. The aim of this study was to compare the clinical and microbiological effects after single-visit full-mouth debridement and quadrantwise therapy. Materials and methods: Forty patients diagnosed with chronic periodontitis were randomly assigned to one of the following two treatment protocols: (1) scaling and root planing, quadrant by quadrant, at 1-week intervals and (2) full-mouth scaling and root planing performed in 2 consecutive days. Plaque index, gingival index (GI), papilla bleeding index, probing depth, and clinical attachment level were used to assess the periodontal status of the patients. Polymerase chain reaction was used to determine the presence of Porphyromonas gingivalis, Tannerella forsythia, Prevotella intermedia, and Aggregatibacter actinomycetemcomitans in subgingival plaque. Results: Both treatment modalities resulted in significant clinical improvement, without evident difference between the two groups. Likewise, no differences were detected for selected target bacteria, except for A. actinomycetemcomitans, the level of which was reduced significantly in the full-mouth root planing (FMRP) group (P = 0.007). Conclusion: Results of the present study indicate similar clinical outcomes following both treatment modalities. Although all four species responded more favorably to FMRP, the only statistically significant decrease was recorded in the case of A. actinomycetemcomitans after therapy in this group of patients