The aim of this study was to evaluate seasonal variation in urea content and other nitrogen compounds (protein, casein, non-protein nitrogen content) of sheep milk as a tool for monitoring the protein nutritional status over the period of two years. The study was performed on three family farms with 150 to 300 sheep per farm using semi-extensive farming management based on pasture, typical for sub-Mediterranean area. Bulk-tank milk samples were taken during the entire milking period (from March to July or August, depending on the year) and were analysed for protein, casein, non-protein nitrogen (NPN) and urea content. Significant effect of the year was observed on urea and NPN content (P<0.05). In addition, seasons had a significant effect on milk protein, urea and casein content (P<0.01). Variations in nitrogen components of sheep milk in Dalmatian hinterland have been significant due to the fact that the semi-extensive farming systems could be strongly affected by climate which directly influence on the quantity and quality of pasture.

Based on the results of an online survey conducted with participants in South Korea (N=73), Turkey (N=46), and the United States (N=99), we show that people’s perceptions and preferences regarding acceptable designs and uses for robots are culturally variable on a number of dimensions, including general attitudes towards robots, preferences for robot form, interactivity, intelligence, and sociality. We also explore correlations between these design and use characteristics and factors cited as having an effect on user perceptions and acceptance of robots, such as religious beliefs and media exposure. Our research suggests that culturally variable attitudes and preferences toward robots are not simply reducible to these factors, rather they relate to more specific social dynamics and norms. In conclusion, we discuss potential design and research implications of culturally variable and universally accepted user preferences regarding robots. Categories and Subject Descriptors H.1.2 [User/Machine Systems]: Human Factors; H.5.2 [UserCentered Design]; I.2.9 [Robotics]: Commercial robots and applications; K.4: Computers and Society General Terms Design, Human Factors

With robots becoming more prevalent, it is important to understand human attitudes toward robots not only when humans directly interact with the robots as most research examines, but when robots are performing nonsocial tasks (e.g., cleaning) within sight and hearing of humans. This study examined how presumed robot communication style in such situations of human-robot colocation affects human perceptions of a group of robots. Results suggest that communication style of robots did not affect perceptions of robots, but further studies should use different techniques to manipulate supposed communication style.

This article aims to revisit an article of my own, published in 1995, about the military dictatorship through music, emphasizing issues such as violence, guerrilla and repressive censorship and the possibility to work with such topics in the classroom. In this article we continue these discussions, seeking to emphasize as the same have been designed in recent years, in particular those related to the teaching of history.

This study aims to investigate three characteristic representational typologies in Sarajevo, in regard to Henri Lefebvre's theory of “Production of Space.” Representational typologies are considered as a tool in the hands of power holders capable of influencing, motivating or manipulating wider population. The comparative analysis of the deterministic link between the social system and architecture will be examined in order to highlight the universal qualities of architecture capable of outliving the liminal momentum of transitions from one socio-political system to another.

This study was focussed on a comprehensive investigation on the state of pollution of the Danube and Sava Rivers in the region of Belgrade. Different complementary analytical approaches were employed covering both i) organic contaminants in the river water by target analyses of hormones and neonicotinoids as well as non-target screening analyses and ii) heavy metals in the sediments. Finally, some common water quality parameters were analysed. The overall state of pollution is on a moderate level. Bulk parameters did not reveal any unusual observations. Moreover, quantification of preselected organic contaminants did not indicate to elevated pollution. More significant contaminations were registered for chromium, nickel, zinc and partially copper in sediments with values above the target values according to Serbian regulations. Lastly, non-target screening analysis revealed a wider spectrum of organic contaminants comprising pharmaceuticals, technical additives, personal care products and pesticides. The study presented a comprehensive view on the state of pollution of the Sava and Danube Rivers and is the base for setting up further monitoring programs. As a superior outcome, it was illustrated how different chemical analyses can result in different assessments of the river quality. A comparison of target and non-target analyses pointed to potential misinterpretation of the real state of pollution.