The cartographic application of ERTS/RBV imagery in polar regions

There are no author-identified significant results in this report

The cartographic application of ERTS/RBV imagery in polar regions

There are no author-identified significant results in this report

Solar sailing

An introduction to solar sailing is presented. The physical principles are briefly reviewed along with an introduction to the historical context of solar sailing. Potential solar sail configurations are briefly introduced, while placing these in the context of the current hardware development programmes. Following the introduction to solar sailing we progress onto a discussion of solar sail orbital dynamics in a planet-centred environment. The development of solar sail trajectory generation is presented, from Earth escape trajectories through to lunar fly-by trajectories and more accurate Earth escape methods. Much of this work relies on assumptions to generate near-optimal solutions rather than true globally optimal solutions, which are computationally difficult to determine for multiple revolution trajectories. Many of these traditional planet-centred solar sail applications, such as Earth escape, also require rapid attitude slew manoeuvres to achieve. This first lecture is based on theory development and application with a view towards future missions, such as planetary sample return

What next? Rewilding as a radical future for the British countryside

Rewilding is an optimistic environmental agenda to reverse the loss of biodiversity and reconnect society with nature. This chapter explores Britain’s ecological history, back to the Last Interglacial before the arrival of modern humans, when the climate was similar to today, to analyse how conservationists can learn from the past to rewild the ecosystems of the present and prepare for an uncertain future. Because there is no single point in history that should or could be recreated, rewilding focuses on re-establishing naturally dynamic ecological processes that, through an appropriate sequence of species reintroductions, attempts to move the ecosystem towards a more appropriately biodiverse and functional state. A state that is self-sustaining in the present climate, and that projected for the near future. Specifically, this chapter explores a rewilding solution to conservation challenges associated with over-grazing, limited germination niche availability, and river dynamics: the reintroduction of wolves, wild boar, and beaver respectively. This sequence of reintroductions is suggested to be complimentary, each altering ecosystem dynamics to facilitate the return of the next. Evidence indicates wolves will reduce deer abundance and re-distribute browsing intensity promoting tree regeneration, particularly in riparian areas, increasing woodland availability to the more habitat-dependent wild boar and beaver. An important message behind rewilding is that a rich biodiversity with all guilds well represented, including the ones that polarize public opinion, such as large predators, are important components of ecosystem service rich and self-sustaining ecosystems, particularly in core areas

Design Patterns for Fusion-Based Object Retrieval

We address the task of ranking objects (such as people, blogs, or verticals) that, unlike documents, do not have direct term-based representations. To be able to match them against keyword queries, evidence needs to be amassed from documents that are associated with the given object. We present two design patterns, i.e., general reusable retrieval strategies, which are able to encompass most existing approaches from the past. One strategy combines evidence on the term level (early fusion), while the other does it on the document level (late fusion). We demonstrate the generality of these patterns by applying them to three different object retrieval tasks: expert finding, blog distillation, and vertical ranking.Comment: Proceedings of the 39th European conference on Advances in Information Retrieval (ECIR '17), 201

The Position of Statutory Construction in Present Day Law Practice

Even the title assigned to this article emphasizes a point of view. We will consider the position of statutory construction not from the aspect of judges, appellate or trial, who must decide cases. Instead we are to look at the subject from the point of view of the practitioner, the lawyer himself. The practice of law is of course varied. And there are many fields of knowledge which control that practice. Some of these obviously do not involve law at all. The lawyer is a litigator, an advocate in court or before quasi-judicial bodies. He is also a counsellor, an advisor and a guide. Sometimes he is a specialist. In many of his activities he is called upon to exhibit his knowledge of diverse fields as well as certain of his attributes of character and personality which have little to do with the law as such. In all of his activities, however, the solid foundation of law and his knowledge of it provide the reason for his retention and for his presence in the matter. Traditionally, the lawyer\u27s skill in analyzing and interpreting judicial decisions has been a primary requisite for all phases of practice. It is now becoming increasingly necessary for him to refer to statutes, and to develop methods and skills in interpreting them, in order to practice the art of counselling as well as the art of advocacy.\u27 This is obviously true in the field of public law, which usually depends on a basic statute. It has become equally true in the great areas of private law with which most lawyers are primarily concerned in the day-to-day practice of their profession