Digital platoform

Institute of Geography and Spatial Organization, Polish Academy of Sciences

Synoptic characteristics of an extreme weather event: The tornadic waterspout in Tivat (Montenegro), on June 9, 2018

Recently Montenegro has often been faced with extreme weather events. The aim of this paper is to provide a detailed synoptic analysis of a severe weather event, a waterspout, and to confirm an indication that in most cases such events could potentially be forecasted, which is of great practical significance, since human lives and property can be saved. The paper presents the research results of synoptic and mesoscale weather conditions which created a favourable meteorological environment for a...

Download 2021 Jovan Mihajlović , Dragan Burić , Milan Milenkovic

Canadian Science Publishing

Prediction of oil film thickness in trochoidal pump

A model for predicting the oil film thickness between the contact surfaces of the gerotor pump teeth is given in this paper. Gerotor pumps are rotary pumps with inner trochoidal gearing. The working process of the pump is followed by mechanical losses due to friction that occurs between the coupled surfaces. To reduce these losses and avoid wearing of the teeth’s active surfaces, it is necessary to provide a minimum thickness of the oil film between the contact surfaces. The minimum thickness of...

Download 2021 Lozica Ivanović , Blaža Stojanović , Radoslav Tomović , Tihomir Mačkić , Jasna Glišović

Termedia Sp. z.o.o.

Natural and natural-like polyphenol compounds: in vitro antioxidant activity and potential for therapeutic application

IntroductionPhenols are a large family of natural and synthetic compounds with known antioxidant activity. The aim of this study was to preform an in vitro screening of natural and natural-like phenol monomers and their C2-symetric dimers (hydroxylated biphenyls) in order to identify those representatives which pharmacophores have the strongest antioxidant and the lowest prooxidant activity.Material and methodsAntioxidative properties of 36 compounds (monomers and their C2-symmetric dimers) were...

Download 2021 Paola Carta , Giovanna Delogu , Darinka Gjorgieva Ackova , Jelena Kotur-Stevuljevic , Aleksandra Klisic , Jasmina Brboric , Maria Antonietta Dettori , Luciano Saso , Kristina Kostic , Davide Fabbri

Informa UK Limited

Tensile strength behaviour of steel plates with corrosion-induced geometrical deteriorations

Download 2021 Špiro Ivošević , Goran Vizentin , Goran Vukelic

Research Square Platform LLC

Model of Dependence Between the Parameters of Surface Roughness and the Parameters of Form and Location During the Machining by Drills with the use of Artificial Neural Networks

Abstract This paper presents a model of dependence between the parameters of surface roughness and the parameters of cylindricity and eccentricity in drilling operation for the enhancing steel EN 42CrMo4, hardness 28 HRC, with twist drills DIN 338 made of high-speed steel EN HS6-5-2, with normal blade. The quality of machining, besides the accuracy of measures, completely determined with the values of the parameters of the surface roughness and the parameters of form and location, hence...

Download 2021 Predrag V. Dasic , Petar Ivanković , Radoslav Vučurević , Zdravko Krivokapić

Vilnius Gediminas Technical University

SUBSTITUTION OF ANCHOR CURRENCY: CHALLENGES FOR TRADE BETWEEN IRAN AND ITS MAJOR TRADING PARTNERS

The aim of the paper is to find out whether euro is a convenient substitution for U.S. dollar as an anchor currency for Iranian rial and whether this replacement would affect Iran’s international trade positively. We explore these effects via Optimum Currency Area (OCA) theories using generalized least square from 2000 to 2018. Based on OCA index, euro would be a good substitution for U.S. dollar as an anchor for Iranian rial. In addition, gravity model and Generalized Method of Moments estimation...

Download 2021 Milorad Jovović , Zahra Zahmani , Srdjan Redzepagic , Marianna Siničáková

Faculty of Political Science, University of Zagreb

Defining Diaspora in post-Yugoslav States

Contemporary societies exist in the conditions of globalization, which profoundly‎ transforms them in different dimensions. Technological progress enabled‎ the significant changes in the identity dimension. This has, inter alia,‎ resulted in new opportunities for preserving identification with the country of‎ origin, increased interest in the diaspora concept in the politological and sociological‎ thought and caused new approaches and activities by the states in‎ improving relations with their diasporic...

Download 2021 Danijela Vuković-Ćalasan , Siniša Tatalović

The Road Association of Serbia Via-vita

Delivery of goods by courier services, before and during the Covid-19 virus epidemic

This paper presents the results of a survey of respondents' attitudes related to the delivery of goods, ordered online, by courier services, in the period before and during the epidemic of the COVID-19 virus. The aim of the study was to analyze the attitudes of users to assess whether there were changes in attitudes during the epidemic of the COVID-19 virus, and observed in relation to the period before the epidemic of the COVID-19 virus, which relate to online shopping, to assess the quality of...

Download 2021 Sreten Simović , Tijana Ivanišević

Oxford University Press (OUP)

First insight into the whole genome shotgun sequence of the endangered noble pen shell Pinna nobilis: a giant bivalve undergoing a mass mortality event

ABSTRACT The noble pen shell Pinna nobilis is a Mediterranean endemic and emblematic giant bivalve. Already considered by the late 20th century to be an endangered species, it is facing a dramatic and rapidly expanding epizooty that has decimated populations since mid-2016. The ecological importance of P. nobilis has prompted important investigations for conservation purposes. Here, we report a first analysis of the whole genome sequencing of this animal. This was performed on an...

Download 2021 Jean-Marc Prévot , Rajko Martinović , José Rafa García-March , Stéphane Coupé , Jean-Luc Bonnefont , José Tena-Medialdea , Nardo Vicente , Robert Bunet , Danijela Joksimović

National Library of Serbia

Phytochemical investigation of Pimpinella serbica

The plant species Pimpinella serbica (Vis.) Drude, endemic to West Balkans, belongs to the genus Pimpinella L. (Apiaceae) according to newer botanical classification. Initially, the plant was described as Pancicia serbica Vis. and long considered as a monotypic genus. Previous phytochemical investigations of this plant were limited to the essential oil analysis by the GC?MS method. This is first study that includes LC-DAD?MS screening of the extracts of the roots and aerial parts, followed by isolation...

Download 2021 Snezana Trifunovic , Sonja Stikovic , Danijela Stešević , Ivan Vučković , Milka Jadranin