Below we discuss the partition of the space of real univariate polynomials according to the number of positive and negative roots and signs of the coefficients. We present several series of non-realizable combinations of signs together with the numbers of positive and negative roots. We provide a detailed information about possible non-realizable combinations up to degree 8 as well as a general...

Although the Confederate surrenders in April 1865 marked the end of major hostilities of the American Civil War, disputes of interpretation continue to characterise the study of the conduct and outcomes of the War. Whilst this may be simply a feature of all historiography, the extent of these interpretive disputes may well be a direct consequence of the nature of the primary sources that have s...

The US sponsored peace talks in Dayton in autumn 1995 gathered representatives of the three constituent peoples of Bosnia and Herzegovina, the neighboring states, and an internationally composed five member Contact groupeach of them trying to end a war, but also to promote some other specific interests and in that way influencing the outcome of negotiations. When estimating the Dayton Agreement...

The goal of the project is to create new scenarios in a supplied photo by replacing some of its elements with elements from other photos. This could be used to repair imperfectly taken photos (photo with shadow due to camera lens that was partially covered by finger), to remove elements that spoil the imagery of a picture (a garbage can in the middle of a rose garden), or to create an image wit...

Rheumatic conditions have affected, among others, emperors, kings, politicians, religious personages and artists. Knowledge about their articular illnesses has increased with a multiplicity of source documents on these personalities: ancient texts, letters, drawings, paintings, sculptures, songs and pictures. Here the case of the most important Brazilian visual artist is described, namely the s...