'Ancient Enmities' and Modern Conflict: History and Politics in Northern Ireland

This article investigates the role of history and historical consciousness in deeply divided societies. It looks at the case of Northern Ireland. It argues that, while the conflict here is caused by contemporary divisions, perceptions of the past have had considerable influence. Recent years have seen efforts to change historical attitudes and this has aided political accommodation. An important lesson from the conflict in Northern Ireland points to the need to challenge such historical perceptions.

Ethnic conflict: geography of

Much ethnic conflict is territorially based. From a geographical perspective, ethnic conflict can be viewed at three scales—the inter-state, the intra-state and the micro, predominantly urban level. However conflicts at the three scales are intimately connected and interact with each other. The outcomes of conflict can produce secession, or at least some degree of separation of the groups concerned. Again, this can be viewed across a range of scale levels. A number of territorially based solutions or at least means of regulating ethnic conflict can be delineated—territoriality, dominance, and mutuality.

Learning To Live Together

The rise of ethnic tensions has rendered the idea of pluralist societies more problematic than ever before. This article looks at the role played by adult education in helping to build peace in Northern Ireland, a society which is moving towards the stabilisation of its intercommunal conflict. A typology of peace education is put forward, outlining the various strategies adopted by those involved in adult learning or community relations work. Some general observations are added about the role of gender. Questions are then raised about how the impact of peace education progammes can be measured or assessed, and about the methodological problems facing all those attempting to draw conclusions about the role of education in conflict societies.

Isotopic variation complicates analysis of trophic relations within the fish community of Plußsee: a small, deep, stratifying lake

Analysis of carbon and nitrogen stable isotopes has allowed freshwater ecologists to examine lake food webs in increasing detail. Many such studies have highlighted the existence of separate within-lake pelagic and benthic-littoral food webs but are typically conducted on large (> 10 km2) lakes, whereas the majority of lakes are actually relatively small. We used stable isotope analysis (δ13C & δ15N) to examine trophic interactions between fish and their prey in Plu�see, as an example of a small, stratifying lake, and to determine whether separate pelagic/benthic-littoral food webs could be distinguished in such systems. Our results indicate that the Plu�see food web was complicated, and due to extensive intra-annual isotopic variation in zooplankton (e.g. cladoceran δ13C annual range = 25.6�), it may be impossible to definitively assign consumers from small, eutrophic stratified lakes to pelagic or benthic-littoral food webs. We present evidence that some components of the Plu�see food web (large bream) may be subsidised by carbon of methanogenic origin.

Graphs of relations and Hilbert series

We are discussing certain combinatorial and counting problems related to quadratic algebras. First we give examples which confirm the Anick conjecture on the minimal Hilbert series for algebras given by $n$ generators and $\frac {n(n-1)}{2}$ relations for $n \leq 7$. Then we investigate combinatorial structure of colored graph associated to relations of RIT algebra. Precise descriptions of graphs (maps) corresponding to algebras with maximal Hilbert series are given in certain cases. As a consequence it turns out, for example, that RIT algebra may have a maximal Hilbert series only if components of the graph associated to each color are pairwise 2-isomorphic.