KORIŠTENJE KONTRACEPCIJE I SPOLNO PONAŠANJE STUDENATA U BOSNI I HERCEGOVINI

The aim of the study was to establish the parameters of sexual behavior and contraception use among full time male students in Bosnia and Herzegovina. In a prospective study that included 2128 male students aged 19-24, an anonymous survey was conducted on sexual behavior and contraception use in four university cities in Bosnia and Herzegovina during the 2007-2009 period. Out of the total number of surveyed students (N=2118), 74.6% (n=1581) were sexually active and the largest number of students (16.7%, n=614) had sexual relations with one partner. In the group of subjects with one sex partner, there was a signifi cant difference according to universities (Cilj rada je defi nirati parametre spolnog ponašanja i upotrebu metoda kontracepcije kod redovnih studenata u BiH. Ispitanici i metode: U prospektivnoj studiji na 2.128 redovnih studenata, u dobi od 19 do 24. godine života provedena je anonimna anketa o spolnom ponašanju i korištenju kontracepcije u 4 univerzitetska grada u BiH u razdoblju od 2007. do 2009. god. Rezultati: Od ukupnog broja anketiranih studenata (N=2.118) spolno aktivnih je bilo 74,6 % (N=1.581), a najveći broj studenata - 16,7 % (N=614) imao je spolne odnose s jednim partnerom. U proporciji ispitanika s jednim spolnim partnerom postoji značajna razlika po univerzitetima za muške ispitanike (x2=13,62; p=0,009). Ne postoji značajna razlika u broju spolnih partnera studenata prema studijskim skupinama, prema proporciji ispitanika s jednim i dva partnera (x2=1,41; p=0,492), ali postoji značajna razlika po godinama studija studenata muškaraca (x2=10,13; p=0,038). Srednja dob seksarhe je 17,35±1,71 godina, te postoji statistički značajna razlika srednjih vrijednosti seksarhe (F(4,1576)=9,273; p<0,001). Kontracepciju je koristilo 74,3 % spolno aktivnih studenata. Kondom kao metodu kontracepcije koristili su u 79% (N=1249) slučajeva, a druge metode u 21 % (N=332) slučajeva. Zaključak: Porast spolne aktivnosti među studentima muškog spola registriran je uz visoku stopu korištenja kontracepcije tijekom spolnog odnosa

U službi Njezina Veličanstva: novinska izvješća o ličkim krajišnicima tijekom Rata za austrijsko nasljeđe (1740. – 1748.)

The regions of Lika and Krbava were among the recent territorial (re)acquisitions of the Habsburg rulers following the Great Turkish War or the War of the Holy League (1683-1699). Incorporation of these regions into the Croatian-Slavonian Military Frontier presented a great difficulty to the Habsburg authorities because of the defiant nature of their inhabitants, who persistently defended their rights and privileges. Like many other Grenzer, the Lycanians, as they were referred to in the contemporary British newspapers, initiated revolts whenever they felt that their privileged status might be endangered. Nonetheless, these and other Grenzer troops not only defended the Habsburg borders from the Ottomans, but also fought for their rulers all across Europe. The aim of this paper is to examine the role and success of these particular Grenzer during the War of the Austrian Succession (1740-1748). The main focus will be on their depiction in the contemporary British and Austrian newspapers which followed the actions of various combatants during the mentioned conflictsPodručja Like i Krbave sačinjavala su dio teritorijalnih stečevina habsburških vladara nakon Velikog bečkog rata ili Rata Svete Lige (1683. – 1699.). Uključivanje ovih područja u sastav Hrvatsko-slavonske vojne krajine predstavljala je velike poteškoće za habsburške vlasti zbog prkosne naravi ovdašnjih stanovnika koji su uporno branili svoja prava i privilegije. Kao mnogi drugi krajišnici, Ličani ili “Lycanians,ˮ kako su bili oslovljavani u suvremenim britanskim novinama, pokrenuli bi bune svaki put kad bi osjetili da je njihov privilegirani položaj ugrožen. No, istovremeno su ovi i drugi krajišnici ne samo branili habsburške granice od Osmanlija, već su i ratovali u službi svojih vladara diljem Europe. Cilj ovoga rada jest istražiti ulogu i uspjeh ove posebne skupine krajišnika tijekom Rata za austrijsko nasljeđe (1740. – 1748.). Glavna pažnja pritom je usmjerena njihovu prikazu u suvremenim britanskim i austrijskim novinama koje su intenzivno pratile djelovanje raznih boraca tijekom spomenutog sukoba

Clear then Grow: Integrating Mine Action with Food Security in Northeast Syria

Over the past several years, considerable attention within the mine action community and in the wider development sector has been devoted to conceptualizing mine action interventions within the broader sustainable development goals (SDGs), or more recently, the so-called triple nexus. Aiming to find linkages between, for instance, clearance efforts and food security is not a new concept. This article, however, looks at the operationalization of these links through an integrated mine action and agricultural recovery program within Northeast Syria (NES)

A Treasury

This is a book review of "Look! Polish Picturebook". The book was written by Małgorzata Cackowska and Anita Wincencjusz-Patyna. The book present a selection of Polish picturebooks from the 1960s until today. Its goal is to present the achievements of Polish illustrators and, to offer an analysis and discussion of the continuity of the traditions and changes in the contemporary Polish art and picturebook design

Linearity and Lagrange Linear Multiplicator in the Equations of Ordinary Kriging

Analizirane su jednadžbe jednostavnoga i običnoga kriginga kako bi se uočila razlika u izračunu procjene u točki, te zorno prikazalo na koji način se Lagrangeov multiplikator iskazuje kao veličina u tehnici običnoga kriginga koja minimizira varijancu procjene. Detaljnom analizom matrica i linearnih jednadžbi, koje se inače automatski izračunavaju u pozadini računalnih programa za kartiranje, prikazana je važnost geomatematike u jednoj od temeljnih geoloških djelatnosti – kartiranju. Nadalje, izvođenjem niza jednadžbi kroz članak pruža se na inženjerski način razumijevanje algoritama jednostavnoga i običnoga kriginga, koje su danas dvije najčešće korištene geostatističke tehnike (uz indikatorski kriging kao treće). U zaključku su predloženi postupci kojima se može odrediti najprimjerenija vrijednost Lagrangeovog multiplikatora za bilo koju jednadžbu običnoga kriginga.The equations of Simple and Ordinary Kriging are compared to outline their differences in the estimation procedure. Emphasis is given to the Lagrange multiplicator as a variable that allows the minimization of variance in Ordinary Kriging. The matrices and linear systems of kriging, which are most often performed in the background of the computer mapping algorithm, are analyzed and presented in detail. The intention is to show the importance of geomathematics in one of the basic geological tasks, mapping. Furthermore, a detailed presentation of equation sets provides a better understanding of the Simple and Ordinary Kriging algorithms for geological engineers, as the two most-used geostatistical techniques (included Indicator Kriging as the third). The conclusion includes proposals, presented in four steps, for the determination of the Lagrange multiplicator value in any Ordinary Kriging equation

FACTORS THAT INFLUENCE EMPLOYEE PERFORMANCE IN OFFSHORING OFFICE: CASE OF JITASA LLC

Since most of the companies are becoming aware of the fact how important employee performance is, finding out ways to achieve higher levels of employee performance is becoming one of the crucial factors for any companies’ success. To help employees achieve better performance, company management needs to know which factors influence employees to perform better. So, few of these factors are tested throughout this study and provide answers that might be helpful to companies that are struggling to motivate employees. The aim of this study is to research into factors that influence the performance of employees on offshoring location in Sarajevo and these factors are Training, Motivation, and Organizational culture. The results that are presented and discussed throughout the study showed that all three hypotheses are accepted, which tells us that there is a positive relationship between Training, Motivation, Organizational culture and Employee Performance in Jitasa LLC. As currently there is no study of this kind conducted in organization that employs offshoring concept, theoretical and empirical contribution is granted. The limitation of the study is relatively small sample and the fact that we could not address all the factors that might influence employee performance

Modelling Stand Variables of Beech Coppice Forest Using Spectral Sentinel-2A Data and the Machine Learning Approach

Background and Purpose: Coppice forests have a particular socio-economic and ecological role in forestry and environmental management. Their production sustainability and spatial stability become imperative for forestry sector as well as for local and global communities. Recently, integrated forest inventory and remotely sensed data analysed with non-parametrical statistical methods have enabled more detailed insight into forest structural characteristics. The aim of this research was to estimate forest attributes of beech coppice forest stands in the Sarajevo Canton through the integration of inventory and Sentinel S2A satellite data using machine learning methods. Materials and Methods: Basal area, mean stand diameter, growing stock and total volume data were determined from the forest inventory designed for represented stands of coppice forests. Spectral data were collected from bands of Sentinel S2A satellite image, vegetation indices (difference, normalized difference and ratio vegetation index) and biophysical variables (fraction of absorbed photosynthetically active radiation, leaf area index, fraction of vegetation cover, chlorophyll content in the leaf and canopy water content). Machine learning rule-based M5 model tree (M5P) and random forest (RF) methods were used for forest attribute estimation. Predictor subset selection was based on wrapping assuming M5P and RF learning schemes. Models were developed on training data subsets (402 sample plots) and evaluations were performed on validation data subsets (207 sample plots). Performance of the models was evaluated by the percentage of the root mean squared error over the mean value (rRMSE) and the square of the correlation coefficient between the observed and estimated stand variables. Results and Conclusions: Predictor subset selection resulted in a varied number of predictors for forest attributes and methods with their larger contribution in RF (between 8 and 11). Spectral biophysical variables dominated in subsets. The RF resulted in smaller errors for training sets for all attributes than M5P, while both methods delivered very high errors for validation sets (rRMSE above 50%). The lowest rRMSE of 50% was obtained for stand basal area. The observed variability explained by the M5P and RF models in training subsets was about 30% and 95% respectively, but those values were lower in test subsets (below 12%) but still significant. Differences of the sample and modelled forest attribute means were not significant, while modelled variability for all forest attributes was significantly lower (p<0.01). It seems that additional information is needed to increase prediction accuracy, so stand information (management classes, site class, soil type, canopy closure and others), new sampling strategy and new spectral products could be integrated and examined in further more complex modelling of forest attributes

Impact of Fluctuating Energy Prices on the Operation Strategy of a Trigeneration System

Trigeneration systems are potentially more energetically and economically efficient than cogeneration systems due to possibility to extend operation at nominal load. However, these systems also face challenges of future development characterised by reduced heating and cooling demands, as a consequence of implementation energy efficiency measures, and fluctuating electricity prices, as a consequence of increased penetration of intermittent renewable energy sources. The main objective of the paper is to research the operation strategies of trigeneration systems and to derive the optimal ones. The model proposed in this paper consists of two different systems, a conventional system and a trigeneration system. The heating, refrigerating and electric loads are known. The price of gas is constant while electricity prices are fluctuating at hourly basis. The optimization method is based on two criteria – energy and economic, which were applied hierarchically. Therefore, two optimal operation strategies are introduced. A mixed integer non-linear programming model provides energy and cost savings up to 32% and 28% respectively in comparison with conventional system. In addition, optimal capacity of trigeneration system is explored