Radivoje Pešić, Aleksandar Davinić, Dragan Taranović, Danijela Miloradović, Snezana Petkovic,
A zero-dimensional, one zone model of engine cycle for steady-state regimes of engines and a simplified procedure for indicator diagrams analysis have been developed at the Laboratory for internal combustion engines, fuels and lubricants of the Faculty of Mechanical Engineering in Kragujevac. In addition to experimental research, thermodynamic modeling of working process of diesel engine with direct injection has been presented in this paper. The simplified procedure for indicator diagrams analysis ...
Tópico(s): Technical Engine Diagnostics and Monitoring
2010 - Vinča Institute of Nuclear Sciences | Thermal Science
Branko Glamuzina, Ana Pešić, Aleksandar Joksimović, Luka Glamuzina, Sanja Matić‐Skoko, Alexis Conides, Dimitris Klaoudatos, Paraskevi Zacharaki,
The recent increase of the local population of gilthead seabream, Sparus aurata, in three areas along the southeastern Adriatic Sea: Malostonski Bay (Croatia and Bosnia and Herzegovina), Neretva Estuary (Croatia) and Boka Kotorska Bay (Montenegro) and its adverse effects on shellfish culture by preying on Mediterranean mussels, Mytilus galloprovincialis, and the European flat oyster, Ostrea edulis, are studied. The results from the analysis of the existing information show that the main reason for ...
Tópico(s): Marine Bivalve and Aquaculture Studies
2014 - Springer Nature | International aquatic research.
Dalibor Pešić, Aleksandar Trifunović, Ivan Ivković, Svetlana Čičević, Aleksandar Žunjić,
Research trying to determine the impact of the use of daytime running lights (DRL), in vehicles, on road safety are lasting throughout the decades. The largest number of previous studies were focused on the search for a relationship between the use of daytime running lights and the number of traffic accidents. As the occurrence of accidents is affected by many factors, this paper examines whether there are differences in driveŕs estimation of passenger car speed when daytime running lights are turned ...
Tópico(s): Impact of Light on Environment and Health
2019 - Elsevier BV | Transportation Research Part F Traffic Psychology and Behaviour
Tanja Boljević, Batrić Vukčević, Zoran Pešić, Aleksandar Boljevic,
Background and objectives: Due to the fact that the mandible is the only movable bone in the face, it is often exposed to the influence of external forces. The incidence of trismus and posttraumatic pain in unilateral mandibular corpus fractures may be related to the occurrence of complications. There is a decrease in the quality of life of these patients. The aim was to study the relationship of the preoperative pain and trismus with the incidence of complications, as well as to investigate the ...
Tópico(s): Dental Anxiety and Anesthesia Techniques
2019 - Multidisciplinary Digital Publishing Institute | Medicina
Saša Novaković, Ilija Đjekić, Mirjana B. Pešić, Aleksandar Ž. Kostić, Danijel D. Milinčić, Nemanja Stanisavljević, Anastasija Radojević, Igor Tomašević,
The objective of this study was to determine whether the addition of different pollen powder concentrations (0.0, 0.5, 1.0 and 1.5 g/100 g) to frankfurters had an influence on antioxidant potential and oxidative changes during storage, without detrimental effect on the quality of sausages. After cold storage of frankfurters, significant (P < 0.05) reductions of psychrotrophic bacteria populations were achieved with higher amounts of pollen (1.0 and 1.5 g/100 g). Good antioxidant properties and maintained ...
Tópico(s): Phytochemicals and Antioxidant Activities
2021 - Elsevier BV | Meat Science
Milivoj B. Gavrilov, Lazar Lazić, Aleksandar Pešić, Miroljub Milutinović, Dragana Marković, Andreja Stanković, Momčilo Gavrilov,
Abstract The influence of hail suppression by silver iodide seeding on the trend in the number of hail days (hail trend) in the Republic of Serbia was studied in three cases: (1) in Vojvodina region, Northern Province of Serbia, in two periods, from 1967 to 2002 when there was no hail suppression, and from 2003 to 2009 when hail suppression was extended to the entire territory; (2) in Serbia proper (Serbia without the Provinces), in two periods, from 1967 to 1984 when hail suppression was spreading, ...
Tópico(s): Precipitation Measurement and Analysis
2010 - Taylor & Francis | Physical Geography
Nazila Kamaly, Gabrielle Fredman, Manikandan Subramanian, Suresh Gadde, Aleksandar Pešić, Louis Cheung, Zahi A. Fayad, Róbert Langer, Ira Tabas, Omid C. Farokhzad,
Excessive inflammation and failed resolution of the inflammatory response are underlying components of numerous conditions such as arthritis, cardiovascular disease, and cancer. Hence, therapeutics that dampen inflammation and enhance resolution are of considerable interest. In this study, we demonstrate the proresolving activity of sub–100-nm nanoparticles (NPs) containing the anti-inflammatory peptide Ac2-26, an annexin A1/lipocortin 1-mimetic peptide. These NPs were engineered using biodegradable ...
Tópico(s): Antimicrobial Peptides and Activities
2013 - National Academy of Sciences | Proceedings of the National Academy of Sciences
Srdjan Pešić, Aleksandar Jovanović, Leposava Grbović,
The effect of acetylcholine (ACh) on the isolated perforating branch of the human internal mammary artery (HIMA) was investigated. ACh induced concentration- and endothelium-dependent relaxation of arterial rings precontracted with phenylephrine (pEC(50) = 6.93 +/- 0.01). The muscarinic receptor antagonist atropine (no selectivity), pirenzepine (M(1)), methoctramine (M(2)), and p-fluoro-hexahydro-siladifenidol (M(1)/M(3)) competitively antagonized the response to ACh. The pA(2) values were 9.81 +/- 0.15, 7.74 +/- 0. ...
Tópico(s): Nitric Oxide and Endothelin Effects
2001 - Karger Publishers | Pharmacology
Jelena Pešić, Aleksandar Baucal,
The work described here is an attempt to establish a dialogue between Vygotsky and psychoanalysis. We believe contemporary psychoanalytic theories (ego psychology, object-relations theory, and self psychology) have expanded and altered Freud's theory to the extent that, behind insufficiently explicated ideas and metaphoric language, Vygotsky's essential ideas seem to be "hidden" by the psychoanalytic developmental theory and the principles of psychotherapy. The basic similarity between these two theoretical- ...
Tópico(s): Educational Methods and Teacher Development
1996 - Taylor & Francis | Journal of Russian and East European Psychology
Duška Pešić, Aleksandar Pešić, Slavko Ivković, Dejan Stojan Apostolovic,
The purpose of this paper is to introduce a fuzzy approach to the quantification of the TOWS (Threats, Opportunities, Weaknesses, and Strengths) strategic concept (also known as 'SWOT'). Fuzzy logic and triangular fuzzy numbers are used to provide an alternate assessment of the internal strengths and weaknesses and external opportunities and threats in the process of developing strategic alternatives and making strategic choices. The developed fuzzy model is applied to a real-world case, conducted ...
Tópico(s): Regional Development and Management Studies
2015 - Stellenbosch University | The South African Journal of Industrial Engineering
Ivan Pešić, Aleksandar Karanikolić, N. Djordjević, Miroslav Stojanović, Goran Stanojević, Milan Radojković, Milica Nestorović,
Incarcerated inguinal hernias surgical treatment represents one of the most frequent surgical treatments in elderly patients. The percentage of incarcerated inguinal hernias urgent surgical treatments is growing exponentially with the age in patients over 50. The aim of the study was to investigate some of the factors that may have impact on the incarcerated inguinal hernias surgical treatment outcome in elderly patients.The study included 180 patients classified in two groups: the study group (> 65 ...
Tópico(s): Pelvic and Acetabular Injuries
2012 - Military Health Department, Ministry of Defance, Serbia | Vojnosanitetski pregled
Duško Pešić, Dalibor Pešić, Aleksandar Trifunović, Svetlana Čičević,
Speeding is one of the most relevant risk behaviours for serious and fatal road traffic accidents, particularly among young drivers, being the cause of approximately every third road traffic accident. Due to this background, many road traffic safety campaigns are aimed at reducing speeding among young drivers. However, the effects of campaigns aimed at complying with speed limits for young drivers have significantly fewer effects than other campaigns. For these reasons, an experimental study was ...
Tópico(s): Transportation Planning and Optimization
2022 - Multidisciplinary Digital Publishing Institute | Mathematics
Andrijana Pešić, Amanda N. Stephens, Sharon Newnam, Svetlana Čičević, Dalibor Pešić, Aleksandar Trifunović,
Road traffic crashes are a leading cause of death for young people. Aberrant driver behaviors, such as drink driving, speeding, not wearing seatbelts, non-compliance with traffic rules and aggressive driving, are key contributors to these crashes. Gender and urban/rural differences are also risk factors. In Serbia, where this study was conducted, as well as in most European countries, younger people have the highest road crash and fatality risk. Thus, it is important to understand not only when ...
Tópico(s): Injury Epidemiology and Prevention
2022 - Multidisciplinary Digital Publishing Institute | Systems
M. MILJKOVIC, Milja Pešić, Aleksandar Jokić, E.A. Davidson,
Tópico(s): Sulfur-Based Synthesis Techniques
1970 - Elsevier BV | Carbohydrate Research
Radivoje Pešić, Aleksandar Davinić, Snezana Petkovic, Dragan Taranović, Danijela Miloradović,
The volumetric efficiency significantly influences engine output. Both design and dimensions of an intake and exhaust system have large impact on volumetric efficiency. Experimental equipment for measuring of airflow through the engine, which is placed in the intake system, may affect the results of measurements and distort the real picture of the impact of individual structural factors. This paper deals with the problems of experimental determination of intake airflow using orifice plates and the ...
Tópico(s): Advanced Combustion Engine Technologies
2012 - Vinča Institute of Nuclear Sciences | Thermal Science
Tuan‐Hoang Tran, Raúl D. Rodriguez, Dmitry Cheshev, Nelson Villa, Muhammad Awais Aslam, Jelena Pešić, Aleksandar Matković, Evgeniya Sheremet,
Since discovering two-dimensional materials, there has been a great interest in exploring, understanding, and taking advantage of their unique properties. Si/SiO2 is one of the most used substrates for the deposition and characterization of 2D materials due to its availability and optical contrast. This work goes beyond the conventional substrate and introduces highly-ordered pyrolytic graphite (HOPG) as universal support for investigating two-dimensional materials due to several unique properties ...
Tópico(s): MXene and MAX Phase Materials
2022 - Elsevier BV | Applied Surface Science
Miroljub Barać, Mirjana B. Pešić, Sladjana P. Stanojević, Aleksandar Ž. Kostić, Vanja Bivolarevic,
The aim of this work was to compare functional properties including solubility, emulsifying and foaming properties of native and thermally treated adzuki, soy and pea protein isolates prepared under the same conditions. These functional properties were tested at four pH values: pH 3.0, pH 5.0, pH 7.0 and pH 8.0. The lowest solubility at all pH values were obtained for isolate of adzuki whereas isolates of soybean had the highest values at almost all pHs. Thermal treatment reduced solubility of soy ...
Tópico(s): Food composition and properties
2014 - Springer Science+Business Media | Journal of Food Science and Technology
Miroljub Barać, Mirjana B. Pešić, Sladjana P. Stanojević, Aleksandar Ž. Kostić, Slavica Čabrilo,
Due to high nutritive quality, good techno-functional properties and low cost, legume protein products are becoming the most appropriate alternative to protein products of animal origin. In food industries, these products are usually used as techno-functional additives which provide specific characteristics of final food products. Legume proteins are commonly used as flour, concentrates, and isolates. The greatest application on industrial scale has soy proteins, and to a lesser extent, in the past ...
Tópico(s): Protein Hydrolysis and Bioactive Peptides
2015 - Faculty of Technology, Novi Sad | Acta periodica technologica
Mirjana B. Pešić, Danijel D. Milinčić, Aleksandar Ž. Kostić, Nemanja Stanisavljević, Goran Vukotić, Milan Kojić, Uroš Gašić, Miroljub Barać, Sladjana P. Stanojević, Dušanka A. Popović, Nebojša Banjac, Živoslav Tešić,
The aim of this study was to evaluate the effect of enriching a complex food matrix (FM) with grape extracts on polyphenol content, composition, bioaccessibility and antioxidant activity during digestion. The grape extracts and FM were separately tested under the same conditions as controls. The FM by itself contains a significant amount of phenolic acids and flavonols, influencing the final recovery of polyphenols from grape extracts. The FM significantly increased the total recovery of polyphenols ...
Tópico(s): Food composition and properties
2019 - Elsevier BV | Food Chemistry
Aleksandar Matković, Borislav Vasić, Jelena Pešić, Julia Prinz, Ilko Bald, Aleksandar R. Milosavljević, Radoš Gajić,
We demonstrate that a single-layer graphene replicates the shape of DNA origami nanostructures very well. It can be employed as a protective layer for the enhancement of structural stability of DNA origami nanostructures. Using the AFM based manipulation, we show that the normal force required to damage graphene encapsulated DNA origami nanostructures is over an order of magnitude greater than for the unprotected ones. In addition, we show that graphene encapsulation offers protection to the DNA ...
Tópico(s): Nanopore and Nanochannel Transport Studies
2016 - IOP Publishing | New Journal of Physics
Aleksandar Pešić, Duška Pešić, Andreja Tepavčević,
Since the internal audit of the company is essential to supply information needed for the effective management and improvement of the competitive position, the purpose of this paper is to introduce an innovative strategic management tool for the assessment of internal organizational factors that overcomes some limitations of traditional appraisal methods, and also enables more comprehensive evaluation of the company?s internal environment. Although the classical Internal Factor Evaluation matrix ( ...
Tópico(s): Collaboration in agile enterprises
2012 - ComSIS Consortium | Computer Science and Information Systems
Srdjan Pešić, Leposava Grbović, Aleksandar Jovanović,
The effect of acetylcholine (ACh) on the isolated, nonprecontracted perforating branch of the human internal mammary artery (HIMA) was investigated. ACh induced concentration-dependent contractions of nonprecontracted rings with denuded endothelium (pEC(50) = 6.72 +/- 0.02, E(max) = 88.8% of contractions induced by phenylephrine, 10(-5) mol/l) and was without effect on arterial segments with intact endothelium. An inhibitor of nitric oxide synthase, N(G)-monomethyl-L-arginine (L-NMMA), or indometacin, a cyclooxygenase ...
Tópico(s): Ion channel regulation and function
2002 - Karger Publishers | Pharmacology
Tijana Tomašević-Ilić, Jelena Pešić, Ivana Milošević, Jasna Vujin, Aleksandar Matković, Marko Spasenović, Radoš Gajić,
Tópico(s): Nanowire Synthesis and Applications
2016 - Springer Science+Business Media | Optical and Quantum Electronics
Miroljub Barać, Tanja Vučić, Slađana Žilić, Mirjana B. Pešić, Marina Sokóvić, Jovana Petrović, Aleksandar Ž. Kostić, Ivana Sredović Ignjatović, Danijel D. Milinčić,
This study deals with the effect of in vitro digestion on the functional potential of traditional Serbian white-brined cheeses. The total antioxidant capacity, reducing power and iron (II) chelating properties as well as angiotensin-converting enyzme-inhibitory (ACE-inhibitory) and antimicrobial activities of traditional Serbian white-brined cheeses before and after in vitro digestion were assayed. The traditional cheeses had different antioxidant properties as well as different ACE-inhibitory activities. ...
Tópico(s): Insect Utilization and Effects
2019 - Multidisciplinary Digital Publishing Institute | Foods
Radivoje Pešić, Aleksandar Davinić, Stevan Veinović,
Substitution of fossil fuels with fuels that come from part renewable sources has been a subject of many studies and researches in the past decade. Considering the higher cost and limits of production resources, a special attention is focused on raising the energy efficiency of biofuel usage, mainly through optimization of the combustion process. Consequently, in biofuel applications, there is a need for determination of auto-ignition quality expressed by cetane number as a dominant characteristic ...
Tópico(s): Environmental and Analytical Chemistry Studies
2008 - Vinča Institute of Nuclear Sciences | Thermal Science
Ivan Grujić, Nadica Stojanović, Radivoje Pešić, Aleksandar Davinić, Sunny Narayan,
The limited quantities of oil reserves and the exhaust emissions from IC engines have become a threat to the existence of IC engines.One of the best solutions to the problem is the use of alternative fuels.Hydrogen is an alternative fuel that is called a fuel of the future.A disadvantage of hydrogen is its high combustion speed.Experimental results were used for the determination of inputs for numerical analysis.The numerical analysis is performed for a 3D model of the engine in order to determine ...
Tópico(s): Hydrogen Storage and Materials
2020 - | Transactions of FAMENA
Julia Prinz, Aleksandar Matković, Jelena Pešić, Radoš Gajić, Ilko Bald,
A combination of three innovative materials within one hybrid structure to explore the synergistic interaction of their individual properties is presented. The unique electronic, mechanical, and thermal properties of graphene are combined with the plasmonic properties of gold nanoparticle (AuNP) dimers, which are assembled using DNA origami nanostructures. This novel hybrid structure is characterized by means of correlated atomic force microscopy and surface‐enhanced Raman scattering (SERS). It is ...
Tópico(s): Plasmonic and Surface Plasmon Research
2016 - Wiley | Small
Aleksandar Trifunović, Dalibor Pešić, Svetlana Čičević, Boris Antić,
Pre-school children, as well as children from lower grades in primary school, who although rarely, completely independently participate in traffic, represent a vulnerable population from the standpoint of traffic safety. The greatest number of children were injured or killed in road traffic crashes on their way from home to kindergarten or school. Mostly due to lack of experience, children's behavior is confusing and often reckless and hasty. Safe behavior in the traffic environment demands certain ...
Tópico(s): Urban Transport and Accessibility
2017 - Elsevier BV | Accident Analysis & Prevention
Pešić Duška, Pešić Aleksandar,
In this paper we introduce a new collaborative technique in teaching and learning the epsilon-delta definition of a continuous function at the point from its domain, which connects mathematical logic, combinatorics and calculus. This collaborative approach provides an opportunity for mathematical high school students to engage in mathematical inquiry outside of the classroom by completing exercises that are based on the idea of visualization. Thus, the proposed approach enables cultivation of mathematical ...
Tópico(s): Mathematics Education and Teaching Techniques
2015 - | European Journal of Science and Mathematics Education
N. Djordjević, Aleksandar Karanikolić, Miomir Pešić,
Although the number of elderly patients with breast cancer is increasing, knowledge about possible differences in the biology and clinical outcomes of breast cancer according to age is limited. Retrospectively were followed: diagnosis, surgical treatment, stage of disease, histology, and survival of breast cancer treated women at the Surgical and Oncological Clinic in Nis between 1985 and 1990. Patients were divided in two groups: study (=65 years) and control (<65 years). The study involved 2196 women ( ...
Tópico(s): Breast Lesions and Carcinomas
2004 - Elsevier BV | Archives of Gerontology and Geriatrics