DETECTION AND HANDLING EXCEPTIONS IN BUSINESS PROCESS MANAGEMENT SYSTEMS USING ACTIVE SEMANTIC MODEL

Although business process management systems (BPM) have been used over the years, their performance in unpredicted situations has not been adequately solved. In these cases, it is common to request user assistance or invoke predefined procedures. In this paper, we propose using the Active Semantic Model (ASM) to detect and handle exceptions. This is a specifically developed semantic network model for modeling of semantic features of the business processes. ASM is capable of classifying new situations based on their similarities with existing ones. Within BPM systems this is then used to classify new situations as exceptions and to handle the exceptions by changing the process based on ASM’s previous experience. This enables automatic detection and handling of exceptions which significantly improves the performance of bpm systems

Stil privrženosti i dijadička prilagodba kod žena: medijacijska uloga percipirane učinkovitosti u rješavanju bračnih sukoba

In this study, we examined perceived efficacy in solving marital conflicts as a mediator between adult attachment style and dyadic adjustment, while controlling for the effects of duration of marriage. A total of 1921 married women participated in the research. The results suggest that women with high attachment avoidance are more likely to perceive themselves as inefficient in marital conflict resolution and maladjusted to the dyadic relationship, compared to women with high attachment anxiety. Furthermore, the results suggest that perceived efficacy in solving marital conflicts mediates the effects of insecure attachment styles on dyadic adjustment. Finally, there is evidence for a reciprocal causation between efficacy expectations and dyadic adjustment.U ovoj smo studiji ispitali doprinos percipirane učinkovitosti u rješavanju bračnih sukoba kao posrednika u objašnjenju veze između stila privrženosti odraslih i dijadičke prilagodbe, istodobno kontrolirajući učinak duljine braka. U istraživanju je sudjelovala 1921 udana žena. Rezultati sugeriraju da će se žene sklone izbjegavajućoj privrženosti vjerojatno smatrati neučinkovitima u rješavanju bračnih sukoba te slabije prilagođenom partnerskom odnosu u usporedbi sa ženama s visokom anksioznom privrženosti. Nadalje, rezultati sugeriraju da uočena učinkovitost u rješavanju bračnih sukoba posreduje učincima nesigurnih stilova privrženosti na dijadičku prilagodbu. Konačno, možemo pretpostaviti postojanje uzajamne uzročne veze između očekivanja učinkovitosti u rješavanju bračnih sukoba i dijadičke prilagodbe

Difference in psychomotor skills while working on tablets PC and smartphones

This paper analyzes the differences in psychomotor abilities of users while working on tablet PC and smartphone. The first set of input data for analysis includes lap times that were obtained through an experiment in which subjects were tested using the tablet PC and smartphone for playing games Labyrinth 3D Maze, based on the Android platform. The second group of input data was obtained through the same answers of the respondents to the questionnaire on spatial abilities - "Santa Barbara". Analysis of obtained results indicates that the performance achieved are better when using a smartphone compared to the tablet PC, which means that it is more accurate and faster to control a device of smaller dimensions. In addition, the results of Spearman's correlation show the link between achievement on the maze test, conducted on a tablet PC with a touch screen, and results of the questionnaire Santa Barbara. Specifically, respondents who had lower scores on the test maze have a lower ability to navigate in space

A young soldier with syncope, shortness of breath and palpitations

Introduction. Coronary artery disease in people under 30 years is relatively uncommon, but once a disease occurs it brings a significant morbidity and psychological effects. Case report. We reported a 28-year-old patient presenting atypical symptoms after sincopa and non-specific changes on electrocardiogram at admission. After noninvasive and invasive cardiology diagnostic procedures were made, we concluded that he had a subtotal tubular stenosis in proximal segment of the left anterior descending coronary artery. Myocardial revascularization was successfully performed 24-hour after coronarography with the left internal mammary thoracic artery graft on the left anterior descending coronary artery and the patient had a prompt and satisfactory postoperative recovery. Conclusion. This case indicates the importance of a careful evaluation of young adults even if they do not experience typical anginal symptoms or do not have multiple risk factors for cardiovascular diseases

Comparing tablets (touchscreen devices) and PCs in preschool children' education: testing spatial relationship using geometric symbols on traffic signs

Touchscreen devices have dramatically increased the accessibility and usage of technology, causing escalating usage, especially by very young children. Although the effects of screen time have been shown to produce serious (negatively effects on executive functioning, attention problems, school difficulties, sleep and eating disorders, and obesity) and even life-threatening consequences (due to radiation emission), technology can be beneficial if it is carefully used. Child-centered technology is especially designed to be as entertaining and captivating as possible. In order to examine how touchscreen devices, influence the acquisition of some important spatial concepts and provide exciting opportunities for learning new abilities, an experimental research was conducted aimed to determine whether the type of device used (computers or tablets) in the natural kindergarten environment influences young children performances. For the purpose of this work, geometrical symbols on traffic signs were used to test spatial relationships – left/right, and longer/shorter relations. The test was carried out on a sample of 30 pre-school children. The results show significant differences between the two-testing media for identifying the longer vs. shorter relationships in favor of Tablet PC. Based on the results obtained, it can be concluded that the kinesthetic characteristics of tablets, the novelty factor and the opportunity to learn through playing, provide a positive approach to the early childhood education. Besides, the interactive environment created in a kindergarten by using tablets contributes to introduce new teaching methods which are expected to amplify the pedagogical capacity, changing the way of spatial concepts acquisition, as well as, children traffic education take place within

INTERPRETING THE MEANING OF GEOMETRIC FEATURES BASED ON THE SIMILARITIES BETWEEN ASSOCIATIONS OF SEMANTIC NETWORK

In this paper the method of semantic network analysis which enables semantic categorization of data in the network is presented. The main goal of network analysis is determination of the similarity of associations in semantic network based on similarity of attributes values of associations. The method allows highly efficient semantic categorization of new concepts, which does not depend on pre-planned inputs and predefined rules of deduction. Also, the concept allows different semantic interpretations of the same concept in different semantic contexts. As a specific example for demonstration of semantic categorization process, a part of mold manufacturing workflow was chosen

Growth of the acetogenic bacterium Acetobacterium woodii by dismutation of acetaldehyde to acetate and ethanol

Acetogenic bacteria are a group of strictly anaerobic bacteria that may have been first life forms on Earth since they employ an ancient pathway for CO2 fixation into acetyl-CoA that is coupled to the synthesis of ATP, the Wood–Ljungdahl pathway. Electrons for CO2 reduction are derived from oxidation of H2 or CO and thus, these bacteria can grow lithotrophically on gases present on early Earth. Among the organic molecules present on early Earth is acetaldehyde, a highly volatile C2 compound. Here, we demonstrate that the acetogenic model bacterium Acetobacterium woodii grows on acetaldehyde. Acetaldehyde is dismutated to ethanol and acetyl-CoA, most likely by the bifunctional alcohol dehydrogenase AdhE. Acetyl-CoA is converted to acetate by two subsequent enzymes, phosphotransacetylase and acetate kinase, accompanied by the synthesis of ATP by substrate-level phosphorylation. Apparently, growth on acetaldehyde does not employ the Wood–Ljungdahl pathway. Our finding opens the possibility of a simple and ancient metabolic pathway with only three enzymes that allows for biomass (acetyl-CoA) and ATP formation on early Earth

Analiza slike za karakterisanje zaštitnog sloja cinka na čeliku dobijenog toplim cinkovanjem

The procedure for measuring the thickness of anticorrosion protective layer of zinc on steel is given. The metallographic images are used for this measurement. Results are statistically handled and results are used to determine the uniformity of the thickness of the layer. The procedure was used to determine the quality of protective layers obtained form specimens produced by two different producers.Dat je prikaz postupka merenja debljine zaštitnog sloja cinka na čeliku korišćenjem programa za analizu slike. Na metalografskim snimcima preseka zaštitnog sloja cinka na čeliku merene su debljine zaštitnog sloja i potom su podaci statistički obrađeni. Rezultati statističke analize korišćeni su za upoređenje kvaliteta prevlake na dva uzorka dobijena od različitih proizvođača