Babel Treebank of Public Messages in Croatian

AbstractThe paper presents the process of constructing a publicly available treebank of public messages written in Croatian. The messages were collected from various electronic sources – e-mail, blog, Facebook and SMS – and published on the Zagreb Museum of Contemporary Art LED facade within the Babel art project. The project aimed to use the facade as an open-space blog or social interface for enabling citizens to publicly express their views. Construction and current state of the treebank is presented along with future work plans. A comparison of Babel Treebank with Croatian Dependency Treebank and SETimes.HR treebank regarding differing domains and annotation schemes is briefly sketched. The treebank is used as a test platform for introducing a new standard for syntactic annotation of Croatian texts. An experiment with morphosyntactic tagging and dependency parsing of the treebank is conducted, providing first insight to computational processing of non-standard text in Croatian

The effect of trained principals on the professional (self) development of employees

The matter election of principal in schools can sometimes become a political issue. All political parties are interested in this position, especially the ones that are now in power. The work of a principal is a rather complex activity, especially during the time of transition, when teachers, who are managed by the principals, expect the implementation of every outlined change and to achieve the goals of educational reform. Principals often must struggle to supervise teachers and deal with difficulties, because during their professional development they did not acquire basic competency in management, or management in education. This article discusses research among the main participants in education (teachers, principals, and advisors) and examines what kind of influence education has on principalsʼ ability to provide leadership in times of change. The results of this research show that leadership in schools is more efficient if principals are more educated in disciplines such as management in education

APPLIANCE OF TWINS AS A WAY FOR ACHIEVING SECURE HIDDEN IMAGE IN INFRARED TECHNOLOGY

Utilizing the situation that except image in visual part of the spectrum can be broadened to near infra red domain that is observed instrumentally, near infra red technology stated its principles. Visual color management leads and controls both domains applying standard reproduction materials. CMYKIR separation principles allow attacking the secondary monochrome image to visual colored one, implementing achromatic principles. As the same color visual output can be performed on various ways, besides mathematical calculations, for accurate reproduction twin colors system is practiced

Foot Morphometric Phenomena

Knowledge of the foot morphometry is important for proper foot structure and function. Foot structure as a vital part of human body is important for many reasons. The foot anthropometric and morphology phenomena are analyzed together with hidden biomechanical descriptors in order to fully characterize foot functionality. For Croatian student population the scatter data of the individual foot variables were interpolated by multivariate statistics. Foot morphometric descriptors are influenced by many factors, such as life style, climate, and things of great importance in human society. Dominant descriptors related to fit and comfort are determined by the use 3D foot shape and advanced foot biomechanics. Some practical recommendatios and conclusions for medical, sportswear and footwear practice are highlighted

REDUCTION RATE STRATEGIES BY PROGRAMMED NIR DUAL IMAGE REPRODUCTION PROCESS

Autotypic reproduction used in printing procedures as opposed to standard subtractive system used in color photography, except CMY system components, usually adopts black carbon ink within practiced screening system, commonly denoted as four-color printing. Black color incorporated as black printer or K-channel replenish various features including undercolor adjustments and achromatic interchange, which is crucial for achieving secondary, only near-infrared, NIR detectable image

HIDDEN NIR DUAL IMAGE TECHNOLOGY PRINTED ON THE FABRIC

Dual images printed on fabric are achieved due to INFRAREDESIGN®, through twin colors basic. Tentative part is performed on cotton fabric through CMYKIR technology principles of separation and matching of colors. Sophisticated barrier scanning while procreating testing model, is performed for ultraviolet, visible and near infrared part of the spectrum. This method leads to moving boundary scope of security printing and dual information to a variety of possible printing substrates and sheltered information to materials like silk, cotton, leather, polyester and similar by appliance of twin colors and dual information. These diversity of possible substrates, variations in dyes mixture combinations and coverages allows technologist and designers wide field of concepts, projects and acquirements. IRD technology is based on developing and forming “twin dyes”, whose spectral characteristics for this appliance, some here are presented. Also some additional tools for better visual twins matching are introduced. All observed twins render same spectral characteristics designated as Z domain, beneath 900 nm area with ΔZ difference for “visual and NIR” dyes

Neural network modeling methods for predicting the air parameters in the city of Tuzla

According to the report of the World Health Organization, the city of Tuzla is the second in the world, and the first in Europe in terms of the number of diseases caused by air pollution. Tuzla Canton since 2003 has continuous air monitoring. Concentrations of individual pollutants exceed hourly, daily and annual limit values. In this paper, based on the existing results of air monitoring and meteorological data, using statistical methods and neural network modeling methods, unique and reliable models for predicting the concentration of NO2 in the air for the City of Tuzla have been developed. The results obtained using these models can be used in strategic decision-making processes and activities related to air quality control and management. This paper, on the example of the City of Tuzla, showed that using existing air monitoring data, concentrations of pollutants can be predicted for a longer period of time, using artificial intelligence methods. Reliable models with a high correlation coefficient can be obtained. In the case of a short or long interruption of the measurement of pollutant concentrations for the City of Tuzla with the help of models, which are the result of this work, it is possible to predict the concentrations of pollutants and plan to take measures based on them

Evaluation of cybersickness in virtual reality in driving simulator

Virtual reality (VR) devices are becoming a more popular and widespread tool for learning, gaming and entertainment purposes. One of familiar problems of emerging in VR is side effect known as cybersickness, which can be a nuisance for consumers of VR content. This occurrence can be explained as visual and vestibular conflict. The problem with cybersickness lies within the fact that the body is stationary, but eyes perceive motion in virtual reality, also known as vection. Cybersickness symptoms that often occur include blurred vision, headache, vertigo, upset stomach and other. Aim of this research is to observe changes in cybersickness symptoms in two tested conditions (2D display and VR). In this paper, subjective and objective metric of evaluation regarding cybersickness in VR driving simulation are used. Subjective metric is survey and objective metric is electroencephalogram (EEG). Results of the survey indicate which symptoms of cybersickness are more pronounced during driving in virtual environment compared with classic 2D screen experience. Statistically significant difference was found for 6 variables, which include vertigo, blurred vision and headache. Objective metric showed that highest average beta wave was in VR setting, as well as beta/alpha ratio, which is associated with stress and excitement

Primjena conjoint analize u proučavanju potražnje za MP3 playerima na tržištu Bosne i Hercegovine

Purpose: The paper illustrates practical aspects of conjoint analysis in studying evaluation and preference criteria when buying hardware MP3 players among the youth, as the most significant segment of such product buyers. Methodology: The methodology consisted of several surveys of young consumers in the Sarajevo region. In the first step, we used unstructured focus group interviews combined with a series of multiple-choice and open-ended questions for identifying product attributes and attribute levels that are relevant to consumers’ preferences. After the main attributes and the levels of attributes had been selected, they were combined to form different hypothetical product profiles. Obtained data were analyzed with the help of the conjoint analysis software. Findings: The results show that MP3 player manufacturers and sellers should focus their marketing strategies on the brand when targeting young people, as the most significant market segment for such products. The findings of the demand and price sensitivity analysis imply that the buyers of this product category are generally price-sensitive and therefore willing to switch brands. Limitations: While the study covered the most important attributes regarding MP3 players, it might be desirable to include design as an additional attribute as well as more brands. Also, a sample size could be increased to allow market segmentation based on the obtained part-worths.Svrha: U radu je prikazana primjena conjoint analize u proučavanju procesa vrednovanja i kriterija odabira pri kupnji MP3 playera kod segmenta mladih, kao najznačajnijeg segmenta za tu kategoriju proizvoda. Metodologija: Provedeno je nekoliko istraživanja mladih potrošača u sarajevskoj regiji. Najprije su provedeni nestrukturirani intervjui pomoću fokus grupa u kombinaciji s nizom pitanja višestrukoga izbora i otvorenih pitanja, a sve radi identificiranja varijabli proizvoda i razine njihove važnosti za preferencije potrošača. Nakon što su izdvojene glavne varijable i određene razine njihove važnosti, one su kombinirane kako bi se dobili različiti profili hipotetskog proizvoda. Dobiveni rezultati analizirani su pomoću softvera za conjoint analizu. Spoznaje: Rezultati pokazuju da bi proizvođači i prodavači MP3 playara svoje strategije trebali usmjeriti na marku kada ciljaju na segment mladih kao najznačajniji segment za takve proizvode. Istraživanje potražnje i osjetljivosti na cijene pokazalo je da su kupci ove kategorije proizvoda osjetljivi na cijene i zbog toga su spremni mijenjati marke. Ograničenja: Iako istraživanje obuhvaća većinu čimbenika koji se odnose na MP3 playere, poželjno bi bilo uključiti dizajn kao dodatni čimbenik te više različitih marki. Isto tako, veličina uzorka mogla bi biti veća što bi omogućilo segmentaciju tržišta temeljem dobivenih part-worths

Blood Flow Multiscale Phenomena

The cardiovascular disease is one of most frequent cause deaths in modern society. The objective of this work is analyse the effect of dynamic vascular geometry (curvature, torsion,bifurcation) and pulsatile blood nature on secondary flow, wall shear stress and platelet deposition. The problem was examined as multi-scale physical phenomena using perturbation analysis and numerical modelling. The secondary flow determined as influence pulsatile pressure, vascular tube time-dependent bending and torsion on the main axial flow. Bifurcation and branching phenomena are analysed experimentally through, blood-like fluid pulsatile flow across elastic rubber-like Y-model model. The problem complex geometry near branching in platelet deposit modelling is resolved numerically as Falker-Skan flow