A finite group G is called a B-group if every proper subgroup of G is either normal or abnormal in G. In this paper the authors classify the non-B-groups whose proper subgroups are all B-groups.

Well-being in a small group can be tied to how much its members interact. Small group tours are social occasions, and the discussion that ensues has been shown by ethnographers to be important for a more enriching experience. Increasing conversation can thus be seen as a way to improve social and psychological well-being. We present DramaTric, a mobile presentation system that delivers hour-lon...

Treatment and support of a child with DSD calls for experience and expertise in diagnosis, surgical techniques, understanding of psychosocial issues, and recognizing and accepting the significance of individual values of children, families, and support groups. The range of what is considered "appropriate" care and treatment is still very broad and critics point at major gaps between ethical gui...

groups are a prominent feature of today’s educational landscape, with black and Hispanic children regularly falling far behind white children. Although the achievement gaps narrowed somewhat during the 1970s and 1980s, they have since proved stubbornly resistant to closing further. If the nation is to achieve the goal of equal education as “a fact and a result,” to borrow President Lyndon Johns...

Methods for choosing an appropriate sample size in animal experiments have received much attention in the statistical and biological literature. Due to ethical constraints the number of animals used is always reduced where possible. However, as the number of animals decreases so the risk of obtaining inconclusive results increases. By using a more efficient experimental design we can, for a giv...

A qualitative method using focus group discussions (FGDs) was applied in this study to identify people's perceptions on newspaper reporting pertaining to the Southern Separatist Movement (SSM) by different Yemeni newspapers. This paper also looked into the attitudes towards the movement and the popularity of the issue of Yemeni unification. Five FGD groups with a total of 30 participants discus...

The decline of party membership and party activism in European Democracies has been well established, but this phenomenon has not been effectively explained. This is partly because a full test of any explanation requires longitudinal comparative survey data which does not exist. This paper suggests that generational replacement explains the decline of party activism, so that existing party acti...

An investigation was carried out to determine the extent to which evidence of collaborative learning could be identified in students’ textual interactions in an online learning environment. The literature on collaborative learning has identified a range of behaviors that characterize successful collaborative learning in face-to-face situations. Evidence of these behaviors was sought in the mess...

The goal of this paper is to give a conjectural census of complex hyperbolic sporadic triangle groups. We prove that only finitely many of these sporadic groups are lattices. We also give a conjectural list of all lattices among sporadic groups, and for each group in the list we give a conjectural group presentation, as well as a list of cusps and generators for their stabilisers. We describe s...