THE INFLUENCE OF NATIONAL CULTURE ON CERTAIN TYPES OF ORGANIZATIONAL CULTURE

National culture, among other factors, largely determines organizational behavior. The paper relates to influence of national culture on certain types of organizational behavior such as: motivation, organizational changes and communication process. Introductory section emphasizes the importance of  proper understanding of the relationship between national and organizational culture, especially emphasizing the role of cultural factors that largely determine organizational behavior in modern conditions. The author first provides an overview of different perspectives in defining national culture. To explain the influence of national culture on certain forms of organizational behavior, the author uses Hofstede dimensions of national cultures. In that context, the author analyzes the influence of national culture on motivation and organizational changes. Various forms of communication that represent the consequence of different cultural influences are anylyzed further in the article. Final section of the paper provides conclusions about influence of national culture on motivation, organizational changes and communication process. Key words:  national culture, organization, management, organizational behavior

The influence of organizational culture on leadership – case study Montenegro

Cilj ovoga rada je ispitati utjecaj organizacijske kulture na liderstvo. Pretpostavka da organizacijska kultura utječe na liderstvo podrazumijeva da dominacija različitih vrsta kultura u organizaciji implicira različite stilove liderstva. Empirijsko istraživanje obuhvatilo je uzorak od 16 poduzeća (423 zaposlenih) u Crnoj Gori koji su odgovorili na pitanja postavljena u istraživanju. Analiza dobivenih podataka je izvršena metodom Hi kvadrat testa (Chi square test). Rezultati istraživanja su pokazali da organizacijska kultura ima izravan i značajan utjecaj na izbor stila liderstva u analiziranim poduzećima tj. da različiti tipovi organizacijske kulture, ovisno od svog sadržaja, imliciraju različitelstiloveiliderstva.The aim of this paper is to examine the influence of organizational culture on leadership. The assumption that organizational culture affects leadership implies that dominance of different types of cultures in an organization implies different styles of leadership. Empirical research encompassed a sample of 16 companies (423 employees) in Montenegro where respondents answered the survey questions. The analysis of data obtained was conducted by Chi square test. The research findings showed that different types of organizational culture, depending on their content, imply different styles of leadership

Arrest of Ships – The International Conventions on Arrest of Ships

This paper discusses the most important questions concerning the temporary arrest of seagoing ships through solutions given in the existing international conventions. Special attention is given to the changes contained in the International Convention on Arrest of Ships of 1999 that came into force on 14 September, 2011, compared to the previous Convention of 1952. The basic approach to the principle of temporary arrest of ships remained unchanged according to the Convention of 1999 compared to the 1952 Convention. Still, temporary arrest of ships can only be effected for maritime claims. Having in mind that the 1999 Convention increases the number of maritime claims in relation to the Convention of 1952, and in a way that certain maritime claims that were previously considered claims for purely business relationship, for which creditors had not been able to enjoy the protection relating to arrest of the ship, are deemed to be maritime claims. Changes were also made to the right of re-arrest and multiple arrest of the ship. Convention of 1999 does not greatly alter the existing international regulations as established by the previous Convention, but attempts to additionally specify certain solutions contained in both the Conventions, in terms of their improvement and modernization

Gene expression analysis by non-radioactive RNA-RNA in situ hybridization techniques

RNK-RNK in situ hibridizacija je pogodna metoda za izučavanje specifične ekspresije gena u tkivima i ćelijama, kojom je omogućena vizualizacija obeležene antisens RNK probe hibridizovane za specifičnu iRNK. U ovom radu prikazano je detektovanje ekspresije SOX gena u tumorskim ćelijskim linijama primenom neradioaktivne RNK-RNK in situ hibridizacije koristeći RNK probe obeležene biotinom ili digoksigeninom. Koristeći ovaj pristup potvrđeni su rezultati dobijeni Northern blot analizom, tj. pokazano je prisustvo SOX2 iRNK u NT2/D1 i SOX14 iRNK u HepG2 ćelijama. Cilj ovog rada bio je uspostavljanje RNK-RNK in situ hibridizacije na in vitro kultivisanim ćelijama da bi metodu primenili pri proučavanju ekspresije SOX gena u različitim normalnim i tumorskim tkivima.RNA-RNA in situ hybridization is a reliable method for studying tissue and cell specific gene expression, which enables visualization of labeled antisense RNA probe hybridized to specific mRNA. In this study we employed non-radioactive RNA-RNA in situ hybridization using biotin- or digoxigenin-labeled RNA probes in order to detect SOX gene expression in carcinoma cell lines. By this approach we confirmed results obtained by Northern blot analysis, where the presence of SOX2 mRNA in NT2/D1 and SOX14 mRNA in HepG2 cells has been established. Our aim was to set up RNA-RNA in situ hybridization method in in vitro cultured cells in order to perform further analyses of SOX gene expression on various normal and cancer tissues

Characterization of transcription factors binding to-120 GATA motif of rat βbminy-globin promoter

Cilj ovog rada je bio rasvetljavanje regulacije transkripcije adultnog βbminy-globinskog gena pacova. Da bi se okarakterisali transkripcioni faktori uključeni u ovu regulaciju, upotrebljena je metodologija koja je obuhvatila "footprint" (otisak proteina na DNK), "gel shift" (metoda usporene pokretljivosti u gelu) i "supershift" (metoda kompeticije antitelom u "gel shift"-u) eseje. U ovom radu je analiziran GATA motiv lociran na-120 bp distalnog promotora βbminy-globinskog gena. "Footprint" analiza je otkrila vezivanje nuklearnih faktora iz MEL ćelija za GATA motiv. Uz pomoć "gel shift" eseja detektovana su dva proteinska kompleksa. Kompleks koji je brže migrirao u gelu je eritroidno-specifičan i zastupljeniji je u diferencirajućim MEL ćelijama. Eksperimenti kompeticije sa GATA-1 oligonukleotidom i GATA-1 antitelima potvrdili su vezivanje GATA-1 transkripcionog faktora za GATA motiv na poziciji-120 adultnog βbminy-globinskog gena pacova.The aim of this study was to elucidate the regulation of rat adult βbminy-globin gene transcription. We used DNasel foot printing, gel mobility shift and super shift assays to characterize transcription factors involved in this regulation. In this study we analyzed GATA motif at-120 bp in the distal promoter of βbminy-globin gene. Footprint analysis revealed the binding of nuclear factors from MEL cells to the GATA motif. By using gel mobility shift assay two protein complexes were detected. The faster migrating complex was erythroid-specific and more abundant in differentiating MEL cells. Competition experiments with GATA-1 oligonucleotides and GATA-1 protein antibodies confirmed binding of GATA-1 transcription factor to GATA motif at - 120 bp regulation of rat adult βbminy-globin gene

Up-regulation of the SOX3 gene expression by retinoic acid: characterization of the novel promoter-response element and the retinoid receptors involved

Sox3/SOX3 gene is considered to be one of the earliest neural markers in vertebrates and it is implicated in the genetic cascades that direct brain formation. We have previously shown that early phases of differentiation and neural induction of NT2/D1 embryonal carcinoma cells by retinoic acid ( RA) involve up-regulation of the SOX3 gene expression. Here, we present identification of a novel positive regulatory promoter element involved in RA-dependent activation of the SOX3 gene expression in NT2/D1 cells. This element represents a direct repeat 3-like motif that directly interacts with retinoid X receptor (RXR) alpha in a sequence-specific manner. It is capable of independently mediating the RA effect in a heterologous promoter context and its disruption caused significant reduction of RA/RXR transactivation of the SOX3 promoter. Furthermore, by using synthetic antagonists of retinoid receptors, we have shown for the first time, that RA-induced SOX3 gene expression could be significantly down-regulated by the synthetic antagonist of RXR. Also, this data showed that RXRs, but not RA receptors, are mediators of RA effect on the SOX3 gene up-regulation in NT2/D1 cells. Presented data will be valuable for future investigation of SOX3 gene expression, not only in NT2/D1 model system, but also in diverse developmental, physiological and pathological settings

Machine Learning Modeling from Omics Data as Prospective Tool for Improvement of Inflammatory Bowel Disease Diagnosis and Clinical Classifications

Research of inflammatory bowel disease (IBD) has identified numerous molecular players involved in the disease development. Even so, the understanding of IBD is incomplete, while disease treatment is still far from the precision medicine. Reliable diagnostic and prognostic biomarkers in IBD are limited which may reduce efficient therapeutic outcomes. High-throughput technologies and artificial intelligence emerged as powerful tools in search of unrevealed molecular patterns that could give important insights into IBD pathogenesis and help to address unmet clinical needs. Machine learning, a subtype of artificial intelligence, uses complex mathematical algorithms to learn from existing data in order to predict future outcomes. The scientific community has been increasingly employing machine learning for the prediction of IBD outcomes from comprehensive patient data-clinical records, genomic, transcriptomic, proteomic, metagenomic, and other IBD relevant omics data. This review aims to present fundamental principles behind machine learning modeling and its current application in IBD research with the focus on studies that explored genomic and transcriptomic data. We described different strategies used for dealing with omics data and outlined the best-performing methods. Before being translated into clinical settings, the developed machine learning models should be tested in independent prospective studies as well as randomized controlled trials