Introduction Extensive pastoralism as practiced by East African pastoralists such as the Samburu of Northern Kenya, is premised on access to relatively large tracts of rangeland. Most pastoral land has been communally managed by groups of pastoralists who have, over time, developed rules and norms for regulating access to and use of the resources. In recent years, however, a number of pastoral ...

This chapter provides a historical perspective on the relationship between land and confl ict in Colombia, in which land is identifi ed as both a source and resource of confl ict. This relationship is central to understanding forced displacement in Colombia and this study argues that in light of signifi cant shortfalls in translating state policy on land and IDPs into practice, humanitarian age...

One triangle has angles measuring A, β−α and 90. The other triangle has angles measuring B, α− β, and 90. The two right angles are placed back to back with the two triangles having the same height. Using algebra and substitution, we got something that is similar to the proof but a couple of variables are switched, meaning that there is more work to do. I wonder if this method can be used though...

* I am deeply indebted to Heinz Klein for the many discussions we had on critical paper reviewing. His thoughts and ideas significantly helped shape this article. I would also like to thank Kalle Lyytinen, Jeff Parsons, Juhani Iivari, and Frank Land for their numerous comments and suggestions. am often asked about the section; in particular about the kinds of papers that are or are not appropri...

___________ * This paper assembles and summarizes a number of the authors' writings. As such, it is indebted to a long list of individuals and institutions who have supported us over time. Particular thanks are due to the John D. and Catherine T. MacArthur Foundation and to the IRIS research program at the University of Maryland.

At College & Research Libraries we do not get many articles on the topic of academic library leadership. I wonder why, because I think this is one of the most important and enduring topics in our profession. Maybe it is because this is a big and difficult topic to pin down. What exactly is leadership? What aspects of leadership are we talking about: defining leadership, evaluating leadership st...

This paper presents a combination of veri cation and conformance testing techniques for the formal validation of reactive systems. A formal speci cation of a system, which may be in nite-state, and a set of safety properties are assumed. Each property is veri ed on the speci cation using automatic techniques based on abstract interpretation, which are sound, but, as a price to pay for automatio...