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A. Blagojevic, Željko Stević, D. Marinković, Sandra Kasalica, S. Rajilic

The conditions of globalization often dictate the functioning of transport markets, so it is necessary to conduct frequent research in order to achieve sustainable business. This is achieved through adequate risk and safety management at all levels. The research carried out in this paper includes determining the state of railway traffic safety in a total of nine railway sections in Bosnia and Herzegovina (B&H). The aim of this paper is to develop a new integrated Entropy-Fuzzy PIPRECIA (PIvot Pairwise RElative Criteria Importance Assessment)-DEA (Data Envelopment Analysis) model for determining the state of safety in B&H under particular conditions of uncertainty. Additionally, the aim is to combine the advantages of linear programming (DEA), an objective method (Entropy), and a subjective method (Fuzzy PIPRECIA). In this way, an integrated objective–subjective model is created that provides accurate and balanced decision-making through their integration. Eleven sustainable criteria were defined and divided into six inputs and five outputs. The Entropy model was used to determine the weight values of the inputs, while due to the nature of the outputs, Fuzzy PIPRECIA was used to evaluate them. After the application of the two methods, the way of averaging their values was defined. The DEA model, which implies an input- and output-oriented model, was applied to determine which railway sections have satisfactory performance in terms of safety. Two sections were eliminated from further computation due to extremely poor performance and high risk. Then, the weighted overall efficiency ranking method was applied to determine the final ranking of the railway sections. The results obtained were verified through a sensitivity analysis, which involved changing the impact of the five most significant criteria and a comparison with two Multi-Criteria Decision-Making (MCDM) methods.

S obzirom na to da je šumarstvo djelatnost u kojoj su radnici izloženi relativno velikom stepenu opasnosti od nastanka povreda i profesionalnih oboljenja, ova pojava zahtijeva poseban pristup u segmentu zaštite na radu. Učestalost pojavljivanja povreda i profesionalnih oboljenja u šumarstvu dobar su pokazatelj nivoa sigurnosti radnika pri radu. Iz tog razloga se kroz analizu povreda na radu u JP ŠPD „Unskosanske šume” d.o.o. Bosanska Krupa nastojalo steći uvid u stanje sigurnosti na radu. Analiziran je period od 10 godina (2010–2019) i u tom periodu je evidentirano 213 povreda za cijelo preduzeće. Analiza povreda je obavljena po godinama i mjesecima, prema mjestu nastanka, prema radnom mjestu, prema materijalnom izvoru povrede, prema starosnoj dobi radnika, prema povrijeđenom dijelu tijela, itd. Na osnovu broja povreda po zapremini izrađenoga drveta (43/mil.m3), stanje sigurnosti pri radu može se ocijeniti kao zadovoljavajuće. Najzastupljenije su povrede ekstremiteta (64%), zatim, povrede su češće početkom radne sedmice (26,3%). Najčešći uzrok povrede bio je izazvan padom (62%). Analiza broja povreda po godinama u analiziranom periodu pokazuje da se ističu 2018, a naročito 2019. godina, što se može povezati sa trendom povećanja obima poslova u vlastitoj režiji. Takođe, analiza je pokazala da se najviše povreda desi u ljetnim mjesecima. Prema analizi koja se odnosi na invalide rada, ustanovljeno je da većina registrovanih invalida rada u preduzeću spada u invalide druge kategorije. Invalidi rada čine čak 10,36% ukupne radne snage. Za skoro 80% invalida rada kao glavni uzrok invalidnosti navedena je bolest, tj. razne zdravstvene tegobe koje su smanjile njihovu radnu sposobnost. Samo dvojica radnika su invalidi zbog profesionalnog oboljenja, što je veoma ohrabrujući podatak. Bez obzira na značajan tehnološki napredak i razvoj, posao u šumarstvu se još uvijek smatra jednim od najopasnijih zanimanja na svijetu.

Nedim Jukić, S. Tomić, Rade Gašić

Tokom 2019. godine u granicama obuhvata Parka prirode “Orjen” realizovana su višestruka mikološka istraživanja s ciljem inventarizacije gljiva na ovom području. Među rezultatima istraživanja registrovan je i značajan broj pripadnika odjeljka Ascomycota od kojih su neke vrste po prvi put zabilježene na teritoriji Bosne i Hercegovine. U radu je prezentovan preliminarni spisak zabilježenih vrsta odjeljka Ascomycota dok su neke od vrsta (Desmazierella acicola, Bryoscyphus rhytidiadelphi, Pseudombrophila ripensis i Thecotheus keithii) detaljnije obrađene, uključujući njihovu ekologiju, fenologiju, morfološke karakteristike, poznate obrasce distribucije te eventualne egzistirajuće i potencijalne prijetnje na ovom području.

M. Leiser, Edina Harbinja

e.harbinja@aston.ac.uk #online harms, duty of care, platform regulation, online safety This article critiques key proposals of the United Kingdom’s “Online Harms” White Paper; in particular, the proposal for new digital regulator and the imposition of a “duty of care” on platforms. While acknowledging that a duty of care, backed up by sanctions works well in some environments, we argue is not appropriate for policing the White Paper’s identified harms as it could result in the blocking of legal, subjectively harmful content. Furthermore, the proposed regulator lacks the necessary independence and could be subjected to political interference. We conclude that the imposition of a duty of care will result in an unacceptable chilling effect on free expression, resulting in a draconian regulatory environment for platforms, with users’ digital rights adversely affected. Content Not Available

D. Fajgenbaum, David Wu, A. Goodman, R. Wong, A. Chadburn, S. Nasta, G. Srkalović, S. Mukherjee et al.

Idiopathic multicentric Castleman disease (iMCD) is a rare immunologic disorder characterized by systemic inflammation, multicentric lymphadenopathy, and organ dysfunction. Enlarged lymph nodes demonstrate a spectrum of characteristic but variable histopathologic features historically categorized into hyaline vascular (HV) (or hypervascular [HyperV] more recently), plasmacytic, or “mixed.” Though the etiology is unknown, a pro‐inflammatory cytokine storm, often involving interleukin‐6 (IL‐6), contributes to pathogenesis. Anti‐IL‐6 therapy with siltuximab is the only FDA‐ or EMA‐approved treatment based on efficacy and safety in multiple studies. Importantly, no patients considered to have HV histopathology achieved the primary endpoint in the Phase II study. NCCN currently recommends siltuximab first‐line for iMCD, except for patients considered to have HV histopathology. We investigated whether histopathologic subtype should guide siltuximab treatment decisions. Secondary analyses of clinical trial and real‐world data revealed similar clinical benefit across histopathologic subtypes. Notably, only 18 of 79 patients in the Phase II study were consistently classified into histopathologic subtype by three independent review panels, demonstrating limited reliability to guide treatment decisions. Real‐world data further demonstrate siltuximab's effectiveness in patients considered to have HV (or HyperV). Though histopathology is a critical component for diagnosis, there is insufficient evidence to guide treatment based solely on lymph node histopathologic subtype.

E. B. Silva, Nina Slamnik-Kriještorac, S. Hadiwardoyo, J. Márquez-Barja

Cellular technologies are widely used in the ICT domain, that paving the way towards new opportunities for education and practical experimentation. It also tackles software-related engineering areas, from Digital Processing (DSP) to Software Defined Networks and Network Virtualization applications. Due to the various constraints such as limited access to hardware components, high costs of such equipment, and spectrum regulations that must not be violated, practical education in telecommunications, electrical engineering, and electronics usually lacks the opportunity to pursue experimentation on the realistic cellular deployments. Therefore, in this paper we present a network testbed that allows students to experiment with a fully functional 4G LTE system with no radio. This testbed system mimics the realistic 4G LTE deployment, supporting students towards acquiring valuable knowledge in the field of cellular networks. It is low-cost due the fact there is no need for radio components or Software Defined Radio (SDR) devices, with no limitation on frequency utilization and regulations. The testbed provides seamless scalability for education classes as it can be deployed on top of any machine with general-purpose processor, installing the whole system within two networked PCs or in a fully virtualized environment. We present the testbed framework, as well as the hands-on practices on incorporating such low-cost realistic testbed into the education within various engineering fields.

Nina Slamnik-Kriještorac, H. C. D. Resende, J. Márquez-Barja

A practical compound of education in computer science and electrical engineering, driven by increased availability and maturity of many emerging technologies, should be enriched by various laboratory resources in order to synchronize the paces between technology advancements and education. In particular, advancements in containerization as a virtualization technique pave the way towards allowing students to deploy their project applications with a lightweight resource footprint on top of the cloud. Being backed by a valuable feedback from 45 Bachelor students, in this paper we present the best practices on how virtualization can be leveraged to create a scalable environment for on-demand remote experimentation with distributed systems.

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