257 research outputs found

    SPECIFICITY OF PERFORMANCE MEASUREMENT IN THE MINISTRY OF DEFENSE AND THE SERBIAN ARMED FORCES

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    The purpose of this paper is to investigate the specific characteristics of performance measurement on the example of the Ministry of Defense and the Serbian Armed Forces. The calculation of financial and non-financial performance measures of the Ministry of Defense and the Serbian Armed Forces contributes to constant improvement or maximization of their ability to provide goods and services through the effective and efficient acquisition and use of different types of resources. The research was conducted using the data on selected financial and nonfinancial performances from the 31st Infantry Battalion reports in the period from 2012 to 2018. In order to confirm the hypothesis, the method of analysis, the synthesis method and the correlation analysis method were used. The empirical results of this study show that there is a high degree of interdependence between the financial management and control systems, on the one hand, and increased training of people and more adequate maintenance of motor vehicles, weapons and combat techniques, on the other. The main contribution of this paper is to emphasize the importance of performance measurement in the Ministry of Defense and the Serbian Armed Forces and their contribution to creating a certain level of socialwelfare

    Conformation of the faculties of the suol in the philosophy of Immanuel Kant

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    Циљ рада „Устројство душевних моћи у философији Имануела Канта“ био је да покаже изворност повезаности душевних моћи у заснивању сврховитости човека. У подели душевних моћи на моћ сазнања, моћ осећања задовољства и незадовољства и моћ хтења заснива се њихова међузависност, која, како овај рад покушава да покаже, стреми крајњем циљу „потпуном одређењу човека“. Сврховитост, која је постулирана у међузависности душевних моћи у овом раду је приказана тако, да представља могућност a priori „основне ситуације“, термина који аутор уводи, како би показао аутентичност приступа у философији Имануела Канта. Рад је подељен на увод, три главна дела и закључак. У првом делу обрађена је моћ сазнања са посебним освртом на улогу ума у безусловној синтези појмова добијених путем разумских категорија. У другом делу изложена је моћ хтења тако да је показана улога ума, као одређујућег разлога воље путем категоричког императива у његовом односу према моралној личности у заснивању добре настројености. На крају овог дела показан је значај моралне вере у заснивању моралности. У трећем делу аутор је изложио моћ осећања задовољства и незадовољства у њеној повезаности са моћи сазнања и моћи хтења преко осећања пријатности и непријатности, лепог, узвишеног и моралног осећања. У закључку дато је виђење Кантове философије, као философије „основне ситуације“ у њеном односу према темељним философским питањима сазнања и морала. У изради рада аутор се користио историјско–аналитичком методом. Он је извршио анализу Кантових дела, како би, узимајући у обзир промене значења основних појмова у зависности од времена њиховог настанка, могао да испита валидност саме Кантове теорије. Резултати ауторовог рада показали су да Кантова философија поседује актуелност и широку употребљивост у могућности разјашњавања основних теоријских и моралних питања савременог човека...The aim of this paper was to present the originality of connections between the faculties of the soul in conceiving the purposiveness of man. The division of the faculties of the soul into cognitive faculty, feeling of pleasure and pain and faculty of desire, is the basis of their interdependence, which, as this paper attempts to prove, aims to the end which is “the ultimate determination of man”. Purposiveness, which is postulated in the interdependence of the faculties of the soul, is presented in this paper as representing the possibility of an a priori “basic situation”, the term which the author introduces in order to confirm the authenticity of Immanuel Kant's approach to philosophy. The paper consists of the introduction, the three main sections and the conclusion. The first section deals with the cognitive faculty with the emphasis on the role that the Reason has in the unconditional synthesis of the concepts gained through categories of Understanding. The second section presents the faculty of desire through the role of the Reason, as a defining motive of the Will by the categorical imperative and its relation to the morality of a person when defining good intentions. The ending of this section shows the importance of the moral faith when defining morality. In the third section the author presents the faculty of feeling satisfaction and dissatisfaction as related to the cognitive faculty and the faculty of desire through the feelings of enjoyment and pain, beauty, sublime and moral feeling. The conclusion gives the view of Kant’s philosophy, as the philosophy of the “basic situation” in its relation to the original philosophical questions of cognition and morality. In this paper the author implemented the historical-analytical method. He analised Kant’s work, in order to be able, taking into consideration the changes in meaning of the basic terms depending on the time they were conceived, to question the validity of Kant’s theory itself. The results of this paper proved that Kant’s philosophy is still actual and widely usable for understanding the basic theoretical and moral questions of the modern man..

    GraphCrunch 2: Software tool for network modeling, alignment and clustering

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    <p>Abstract</p> <p>Background</p> <p>Recent advancements in experimental biotechnology have produced large amounts of protein-protein interaction (PPI) data. The topology of PPI networks is believed to have a strong link to their function. Hence, the abundance of PPI data for many organisms stimulates the development of computational techniques for the modeling, comparison, alignment, and clustering of networks. In addition, finding representative models for PPI networks will improve our understanding of the cell just as a model of gravity has helped us understand planetary motion. To decide if a model is representative, we need quantitative comparisons of model networks to real ones. However, exact network comparison is computationally intractable and therefore several heuristics have been used instead. Some of these heuristics are easily computable "network properties," such as the degree distribution, or the clustering coefficient. An important special case of network comparison is the network alignment problem. Analogous to sequence alignment, this problem asks to find the "best" mapping between regions in two networks. It is expected that network alignment might have as strong an impact on our understanding of biology as sequence alignment has had. Topology-based clustering of nodes in PPI networks is another example of an important network analysis problem that can uncover relationships between interaction patterns and phenotype.</p> <p>Results</p> <p>We introduce the GraphCrunch 2 software tool, which addresses these problems. It is a significant extension of GraphCrunch which implements the most popular random network models and compares them with the data networks with respect to many network properties. Also, GraphCrunch 2 implements the GRAph ALigner algorithm ("GRAAL") for purely topological network alignment. GRAAL can align any pair of networks and exposes large, dense, contiguous regions of topological and functional similarities far larger than any other existing tool. Finally, GraphCruch 2 implements an algorithm for clustering nodes within a network based solely on their topological similarities. Using GraphCrunch 2, we demonstrate that eukaryotic and viral PPI networks may belong to different graph model families and show that topology-based clustering can reveal important functional similarities between proteins within yeast and human PPI networks.</p> <p>Conclusions</p> <p>GraphCrunch 2 is a software tool that implements the latest research on biological network analysis. It parallelizes computationally intensive tasks to fully utilize the potential of modern multi-core CPUs. It is open-source and freely available for research use. It runs under the Windows and Linux platforms.</p

    OPTIMAL BATTERY STORAGE LOCATION AND CONTROL IN DISTRIBUTION NETWORK

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    The paper discusses the problem of the energy losses reduction in electrical networks using a battery energy storage system. One of the main research interests is to define the optimal battery location and control, for the given battery characteristics (battery size, maximum charge / discharge power, discharge depth, etc.), network configuration, network load, and daily load diagram. Battery management involves determining the state of the battery over one period (whether charging or discharging) and with what power it operates. Optimization techniques were used, which were applied to the model described in the paper. The model consists of a fitness function and a constraint. The fitness function is the dependence of the power losses in the network on the current battery power, and it is suggested that the function be fit by a n - order power function. The constraints apply to the very characteristics of the battery for storing electricity. At any time interval, the maximum power that the battery can receive or inject must be met. At any time, the stored energy in the battery must not exceed certain limits. The power of losses in the network is represented as the power of injection into the nodes of the network. The optimization problem was successfully solved by applying a genetic algorithm (GA), when determining optimal battery management. Finally, the optimal battery management algorithm is implemented on the test network. The results of the simulations are presented and discussed

    Pojava glavobolja kod sporadične bolesti malih krvnih sudova mozga

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    Uvod: Bolest malih krvnih sudova (BMKS) mozga je čest nalaz kod pacijenata sa klasičnim vaskularnim faktorima rizika i povezana je sa motornim, kognitivnim i afektivnim poremećajima. Neuroradiološki, BMKS mozga se manifestuje lakunarnim infarktima i/ ili hiperintenzitetima bele mase (HBM), a moguća je i pojava mikrokrvarenja. Pored retkih naslednih oblika BMKS mozga, pacijenti sa glavoboljom, posebno migrenskog tipa, nalaze se u povećanom riziku za nastanak ovih lezija, mada je povezanost kompleksna i nedovoljno razjašnjena. Cilj: Cilj rada je identifikacija učestalosti i tipa glavobolja kod pacijenata sa sporadičnom BMKS mozga. Materijal i metode: Retrospektivnom studijom obuhvaćeno je 115 pacijenata sa dijagnozom BMKS mozga, lečenih i ispitivanih hospitalno na Odeljenju za cerebrovaskularne bolesti i rezistentne glavobolje Klinike za neurologiju Kliničkog centra Srbije, u periodu od 1. januara 2015. godine do 31. decembra 2017. godine. Analizirani su osnovni demografski podaci, tip glavobolje i nalaz na nuklearnoj magnetnoj rezonanci (NMR) mozga (prisustvo lakunarnih ishemija, HBM i ukupna težina lezija) standardnim statističkim testovima. Rezultati: Od ukupnog broja pacijenata uključenih u studiju, 44% je patilo od glavobolje. Lakunarni infarkti su uočeni kod 86,1% pacijenata, a HBM kod 46,1% pacijenta. Povezanost glavobolje i prisustva lakunarnih ishemija je bila na nivou statističkog trenda (p = 0,072), dok su pacijenti bez glavobolje imali tendenciju češće pojave HBM u odnosu na one sa glavoboljom (p = 0,065). Zaključak: Veliki broj pacijenata sa sporadičnom, arterioloskleroznom BMKS mozga se ujedno žali na glavobolju. Na NMR snimcima mozga prisustvo lakunarnih infarkta je vezano sa glavobolju kao simptom, a postojanje HBM je češće kod pacijenata bez glavobolje u anamnezi.Introduction: Cerebral small vessel disease (CSVD), a common finding in patients with vascular risk factors, is associated with motor, cognitive and affective disorders. Magnetic resonance imaging (MRI) brain scans of patients with CSVD include lacunar infarcts and/or white matter hyperintensities (WMH) and microhemorrhages. Aside from rare familiar forms of CSVD, patients with headaches, especially migraineurs, have an increased risk to develop these lesions, although this relationship is rather complex and yet to be fully elucidated. Aim: The aim of the study was to determine the frequency and type of headache in patients with CSVD. Material and methods: This retrospective study included 115 patients with CSVD diagnosis admitted at the Clinic of Neurology, Clinical Center of Serbia in the period January 1st, 2015 - December 31st, 2017. Baseline demographic data, headache type and MRI findings (ischemic lacunar infarctions, WMH, and overall lesion severity) were obtained. Data were compared between CSVD patients with headache and headache-free CSVD cases, with the use of standard statistical methods. Results: Among all patients included in this study, 44% had headaches. Lacunar infarcts were present in 86,1% and WMH in 46,1% cases. Correlation between headache symptoms and lacunar infarcts showed a trend towards statistical significance (p = 0.072) whereas headache-free patients more frequently had WMH, also approaching statistical significance (p = 0.065). Conclusion: A large number of arteriolosclerotic CSVD patients complain of different types of headaches. Based on MRI findings, lacunar infarcts are related to headache symptoms, and WMHs are more frequently present in patients with a negative history of headache

    Pojava glavobolja kod sporadične bolesti malih krvnih sudova mozga

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    Uvod: Bolest malih krvnih sudova (BMKS) mozga je čest nalaz kod pacijenata sa klasičnim vaskularnim faktorima rizika i povezana je sa motornim, kognitivnim i afektivnim poremećajima. Neuroradiološki, BMKS mozga se manifestuje lakunarnim infarktima i/ ili hiperintenzitetima bele mase (HBM), a moguća je i pojava mikrokrvarenja. Pored retkih naslednih oblika BMKS mozga, pacijenti sa glavoboljom, posebno migrenskog tipa, nalaze se u povećanom riziku za nastanak ovih lezija, mada je povezanost kompleksna i nedovoljno razjašnjena. Cilj: Cilj rada je identifikacija učestalosti i tipa glavobolja kod pacijenata sa sporadičnom BMKS mozga. Materijal i metode: Retrospektivnom studijom obuhvaćeno je 115 pacijenata sa dijagnozom BMKS mozga, lečenih i ispitivanih hospitalno na Odeljenju za cerebrovaskularne bolesti i rezistentne glavobolje Klinike za neurologiju Kliničkog centra Srbije, u periodu od 1. januara 2015. godine do 31. decembra 2017. godine. Analizirani su osnovni demografski podaci, tip glavobolje i nalaz na nuklearnoj magnetnoj rezonanci (NMR) mozga (prisustvo lakunarnih ishemija, HBM i ukupna težina lezija) standardnim statističkim testovima. Rezultati: Od ukupnog broja pacijenata uključenih u studiju, 44% je patilo od glavobolje. Lakunarni infarkti su uočeni kod 86,1% pacijenata, a HBM kod 46,1% pacijenta. Povezanost glavobolje i prisustva lakunarnih ishemija je bila na nivou statističkog trenda (p = 0,072), dok su pacijenti bez glavobolje imali tendenciju češće pojave HBM u odnosu na one sa glavoboljom (p = 0,065). Zaključak: Veliki broj pacijenata sa sporadičnom, arterioloskleroznom BMKS mozga se ujedno žali na glavobolju. Na NMR snimcima mozga prisustvo lakunarnih infarkta je vezano sa glavobolju kao simptom, a postojanje HBM je češće kod pacijenata bez glavobolje u anamnezi.Introduction: Cerebral small vessel disease (CSVD), a common finding in patients with vascular risk factors, is associated with motor, cognitive and affective disorders. Magnetic resonance imaging (MRI) brain scans of patients with CSVD include lacunar infarcts and/or white matter hyperintensities (WMH) and microhemorrhages. Aside from rare familiar forms of CSVD, patients with headaches, especially migraineurs, have an increased risk to develop these lesions, although this relationship is rather complex and yet to be fully elucidated. Aim: The aim of the study was to determine the frequency and type of headache in patients with CSVD. Material and methods: This retrospective study included 115 patients with CSVD diagnosis admitted at the Clinic of Neurology, Clinical Center of Serbia in the period January 1st, 2015 - December 31st, 2017. Baseline demographic data, headache type and MRI findings (ischemic lacunar infarctions, WMH, and overall lesion severity) were obtained. Data were compared between CSVD patients with headache and headache-free CSVD cases, with the use of standard statistical methods. Results: Among all patients included in this study, 44% had headaches. Lacunar infarcts were present in 86,1% and WMH in 46,1% cases. Correlation between headache symptoms and lacunar infarcts showed a trend towards statistical significance (p = 0.072) whereas headache-free patients more frequently had WMH, also approaching statistical significance (p = 0.065). Conclusion: A large number of arteriolosclerotic CSVD patients complain of different types of headaches. Based on MRI findings, lacunar infarcts are related to headache symptoms, and WMHs are more frequently present in patients with a negative history of headache

    Freedom of Expression within the Employment Relationship - Between Dignity and Duty of the Employee

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    This paper deals with the issues of freedom of expression at the workplace in European and comparative labour law and practice. The authors start from the fact that the right to freedom of expression is guaranteed to all citizens with restrictive possibilities to limit that right. The paper acknowledges the fact that employment implies a certain set of rights and obligations of the employer and the employee that shapes the exercise of the right to freedom of expression at the workplace. For this reason, an evolutionary overview of the development of the employment concept was given. It was pointed out that broad restrictions should not be accepted as justified while particular importance was given to the issue of protecting the efficiency of the employer work organization and work process. This criterion should be taken into account when balancing the employee's right to freedom of expression and protection og the legitimate interests of the employer. The paper discusses the numerous case law material of the European Court of Human Rights, as well as the case law of the highest courts within several important national legislations

    Utvrđivanje vremena nastupanja smrti kriminalističko-forenzički aspekti

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    Determining the time of death of a person has a direct influence on numerous criminal law and criminalistic issues. There are various methods for determining the time of death, ranging from witnesses' testimonies, to autopsy reports and numerous other expert opinions. However, unless there are witnesses of the event, the exact time of death is practically impossible to determine. In criminalistic terms, determining the time of death implies the synthesized use of exact forensic sciences in analysis of the very corps (above all forensic medicine) and the place where the corps was found, as well as criminalistic operative knowledge acquired by collecting and analyzing the information related to victim's personality. Estimation of the time of death based on the corpse's condition implies the use of forensic pathology methods that determine the level of postmortem changes, which occur in specific, predetermined order. In recent years, forensic entomology knowledge about the development and growth of the maggots of flies and other insects that inhabit the body after death, give significant results in this area. Furthermore, new and innovative methods that are used for determining the age of blood stains, significantly assist criminal investigators in more efficient investigation of crime scene and determination of the time of death. As for the sphere of criminal-operative treatment, it is necessary to reconstruct the victim's movement in function of time, that is monitor his/her activities in chronological order, until the moment when the victim was last seen.Utvrđivanje vremena smrti lica ima direktan uticaj na mnogobrojna krivičnopravna i kriminalistička pitanja. Metode kojima se određuje vreme nastupanja smrti su raznovrsne i kreću se u rasponu od izjava svedoka, do obdukcijskih nalaza i različitih drugih ekspertskih mišljenja. Ipak, osim ako ne postoje svedoci događaja, tačno vreme smrti je praktično nemoguće odrediti. U kriminalističkom smislu, utvrđivanje vremena nastupanja smrti podrazumeva sintetizovanu primenu egzaktnih forenzičkih nauka u analizi samog leša (pre svega sudske medicine) i mesta gde je leš nađen, kao i kriminalističko-operativnih znanja do kojih se dolazi prikupljanjem i analizom informacija vezanih za ličnost žrtve. Procena vremena smrti na osnovu stanja leša podrazumeva primenu metoda forenzičke patologije kojima se utvrđuje stepen lešnih promena koje se dešavaju određenom, unapred poznatom dinamikom. Poslednjih godina i znanja forenzičke entomologije o razvoju i rastu larvi muva i drugih insekata, koji nakon smrti nastanjuju leš, daju značajne rezultate u toj oblasti. Takođe, nove i inovativne metode koje se koriste za utvrđivanje starosti krvnih mrlja značajno pomažu kriminalistima u efikasnijem istraživanju mesta zločina i utvrđivanju vremena smrti. Kada je reč o sferi kriminalističko-operativnog postupanja, potrebno je izvršiti rekonstrukciju kretanja žrtve u funkciji vremena, odnosno praćenje njenih aktivnosti hronološkim redom, sve do trenutka kada je žrtva poslednji put viđena

    INFLUENCE OF CIRCUIT BREAKER REPLACEMENT ON POWER STATION RELIABILITY

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    In this paper, the new methodology for the determination of circuit breakers (CB) replacement time has been proposed. The methodology is based on statistical analysis of condition monitored data and the impact on substation reliability. Influence of CB removal on substations reliability is presented together with cost justification of such investment. Using statistical data of 427 CBs gathered in past 10 years, Weibull probability distribution of contact resistance for breakers on both overhead and underground feeders and voltage levels of 35 kV and 10 kV is determined. Substations reliability is calculated using minimal path and minimal cuts method. With this methodology influence of CB’s condition on substations reliability can be observed by using real field data. Example of calculation is shown on 35/10 kV substation. Substation reliability calculation is carried out for 5 different scenarios of CB removal with their expenses. At the end, discounted investment costs for each action and period of 5 years are calculated and are shown in table. For this substation final results are showing best scenario with removal CB’s on power transformers.
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