In this study, authors analyze the practices and effectiveness of educational management and leadership, according to the selected psychological and sociological characteristics of school principals in Croatia and Bosnia & Herzegovina. The selected psychological traits have been already analyzed in the case of entrepreneurial orientation and proved to be relevant for differentiation of schools and principals, according to their inclination to entrepreneurship. In this paper, more comprehensive, analytic criteria are used to explore the effectiveness of educational management and leadership practices in the sample of Croatian and B&H principals. The objective of the study is to determine the significance of the psychological and sociological variables for the practice of school management and leadership, as well as to suggest potential implications for school leaders’ professional orientation and development.

Bosnia and Herzegovina is a country with complex and asymmetrical structure (two entities, District Brčko, and cantons with own government and ministries), The number of ministries in the BiH is enormous. Coordination between so many governments and ministries is demanding while most of the citizens are completely lost in that institutional labyrinth. One of the possible ways how governments and their institutions could help citizens, ensure direct communication with them and improve mutual coordination is more intensive use of social networks (Facebook, Twitter). Social networks have potential to increase visibility and transparency of the work of governments and their institutions. Also, they could make policy processes more inclusive and increase confidence between governments and citizens. The main goal of the paper is to explore presence and activity on social networks in BiH government institutions, to discuss major challenges and to propose potential options for better implementation of social networks in these institutions.

A seven-day old male infant (weight 3.5 kg) presented with abdominal distension and a mass in the abdomen since birth. There was no history of exposure to any drugs or radiation to the mother in the antenatal period. All the laboratory investigations including beta-human chorionic gonadotropin (hCG) and alpha-fetoprotein (AFP) were normal. X-ray abdomen showed a mass effect in the abdomen with calcifications in the left hypochondrium (Fig.1A).

There are currently few data on the long‐term risk of cancer and death in individuals taking raltegravir (RAL). The aim of this analysis was to evaluate whether there is evidence for an association.