2,072 research outputs found
Greenways as strategic landscape planning: theory and application
No full textGreenways are systems and/or networks of protected lands that are managed for multiple uses including: nature protection, biodiversity management, water resources, recreation, and cultural/historic resource protection. Greenway planning is defined here as a strategic action that integrates theories from landscape ecology with theories and methods of landscape planning to focus on the goal of realizing a sustainable "greenway" network of protected lands, managed for compatible multiple purposes. A greenway system or network includes linear corridors and larger areas of protected land that are physically and functionally connected. Greenways are strategic and spatially efficient for protecting and managing land because greenway resources are not randomly distributed but rather are concentrated in corridors.This thesis argues that greenways originated in the United States of America (USA) but are spreading internationally because the greenway concept is: (1) based in part on scientific knowledge, (2) understandable and image-able to the public, and (3) strategic in realizing multiple goals. Greenways are supported by theories from landscape ecology, particularly those concerning spatial configuration and connectivity. Because Greenways are a relatively new concept in landscape planning, new theory, planning strategies, and planning methods are needed. The application of greenways as a component of sustainable landscape planning requires new approaches which integrate abiotic, biotic, and cultural resources and issues. This thesis includes reviews of international greenway literature, and makes original contributions to this emerging theory, planning strategies, and planning methods. Case studies and case applications in the USA and The Netherlands are used to explain and test the theory, strategies, and methods.Key concepts in the emerging greenway theory and methods include: alternative future scenarios, and adaptive management/planning. Scenarios are useful in conceiving alternative future landscapes and greenways feature prominently in many scenario studies. Both scientific knowledge and creative concepts are needed to formulate effective greenway scenarios. Greenway planning is often conducted with uncertain or incomplete knowledge. Adaptive planning/ management offers a framework for planning and implementing greenways in an experimental manner that yields new knowledge through application, plan implementation, and monitoring. A framework method for greenways and landscape ecological planning is proposed which integrates these key theories from landscape ecology, spatial concepts and scenarios, and adaptive management. The framework method is applied in several test applications in the USA and discussed in the Dutch context.Principles from landscape ecology relating to spatial and temporal scales are also important and are understood in a hierarchical framework. The landscape scale is appropriate for sustainability planning because it is large enough to accommodate heterogeneity and disturbance regimes, yet small enough to survey, assess, plan, design, and manage for specific landscape structure. Operating at the landscape scale planners can hope to understand and manage fundamental pattern and process relationships and dynamics.Three fundamental principles are posed in support of greenways: 1) The hypothesis of co-occurrence of resources in greenways, 2) The inherent benefits of landscape connectivity, 3) The concept of compatible, or synergistic multiple use in greenways. This paper asserts that these three fundamental greenway principles derive from landscape planning theory; are supported and strengthened by emerging landscape ecology theory; and that their application as greenways supports the contemporary international policy goal of sustainability.The thesis identifies contemporary greenways trends based on an original survey which found that: 1) Greenways are increasingly integrated with comprehensive landscape planning at the state level in the USA, and 2) Greenways are often initiated to provide trail and recreational use, but evolve to support multipurpose/multi-functional planning goals and objectives. A future prognosis for greenways in the USA is offered including an expected shift from locally initiated to regional and interstate greenway planning and implementation, and more explicit integration of multiple uses in greenways.This research raises a larger set of questions that transcend and cut across many of the issues, theories and strategies identified. If the world is engaged in a quest for sustainability, what is the role of ecology, and how does ecology relate with design? What do ecologists need to know about planning and design? and what do designers and planners need to know about ecology? Landscape ecologists might reply: spatial and temporal pattern and scale, dynamics of process, and disturbance processes. Planners and designers might reply: a better understanding of the role of humans' in creating, transforming and restoring landscapes, the value and place of aesthetics (including historical precedent), and perhaps the ultimate cultural construct, economics.The questions are many and complex. The challenges will grow in number and intensity as most of the world's landscapes continue to intensify and change. Greenways is an idea that promises to contribute to the resolution of some of these questions and challenges. Progress has been made. I hope that my thoughts and ideas can contribute to this quest for sustainability in some useful way
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Fabrieksschema betreffende de "Bereiding van Magnesium uit Zeewater": Deel I
No full textDocument(en) uit de collectie Chemische Procestechnologie Deel II zie: Deeg, J.F., Chemical Process Design 1101DelftChemTechApplied Science
Beatty, J.F., and the Law of Manslaughter
No full textIn this article, the author argues that the recent Supreme Court of Canada decisions in R. v. Beatty and R. v. J.F. have clarified several of the issues that have plagued the increasingly complicated offence of manslaughter. In particular, the decisions address the redundancy among the many manslaughter provisions in the Criminal Code, the need to define a clear separation between actus reus and mens rea, and the need to establish distinct categories of objective fault for different types of manslaughter offences. The author examines the legal background of these decisions as well as the current state of the law. He concludes by identifying emerging issues relating to the offence of manslaughter, arguing that the law remains convoluted and in need of urgent reform despite the progress made in the Beatty and J.F. decisions
Bouwen aan de delta: Gerealiseerde waterbouwkundige werken, Inzendingen prof. dr. ir. J.F. Agemaprijs 2015
No full textDe afgelopen jaren (2010 - 2015) zijn er in Nederland vele in het oog springende waterbouwkundige projecten gerealiseerd. Aansprekende voorbeelden betreffen onder meer Maasvlakte 2, de Zandmotor, de ontpoldering van de Noordwaard en de omlegging van de Zuid-Willemsvaart. Ook in de lokale watersystemen zijn diverse interessante projecten gebouwd. Veel van deze projecten hebben zich aangemeld voor de prof. dr. ir. J.F. Agemaprijs, dé prijs voor het beste en meest innovatieve waterbouwkundige project dat daadwerkelijk gebouwd is. Dit boek toont foto’s en projectinformatie, en bevat achtergrondinformatie over de Agemaprijs en essays van experts. De verschillende projecten geven een fraai beeld van de veelzijdigheid en innovativiteit van de Nederlandse (water)bouwers. Het boek geeft inzicht in de huidige en toekomstige manier waarop deltagebieden kunnen worden ingericht.Delft University of Technolog
On the equilibrium configuration of the BC-type ruijsenaars-Schneider system
No full textVan Diejen, J.F. (reprint author). Instituto de Matemática y Física, Universidad de Talca, Casilla 747, Talca, Chile.It is shown that the ground-state equilibrium configurations of the trigonometric BC-type Ruijsenaars-Schneider systems are given by the zeros of Askey-Wilson polynomial
Australian author Dale Collins with wife Aileen and another man onboard the Ellerman and Bucknall steamer City of Delhi, New South Wales, 7 December 1929 [picture].
No full textTitle devised from accompanying information where available.; Part of the: Fairfax archive of glass plate negatives.; Fairfax number: 5866.; Full name: Cuthbert Quinlan Dale Collins; Also available online at: http://nla.gov.au/nla.pic-vn6256859; Acquired from Fairfax Media, 2012
La Fete. Marche de Brayoure.
No full textsectionalpianoTo Joseph P. Shawads on back cover for J.F. Shaw stockJohns Hopkins University, Levy Sheet Music Collection, Box
180, Item 034par Edgar H. Sherwood.as performed by the Author at the Opening of Shaw's New Music Rooms, Rochester, N.Y.C.F. Muntz & Co. Lith. Rochester N.Y
Geschichte der Poesie und Beredsamkeit seit dem Ende des dreizehnten Jahrhunderts. /
No full textA continuation of v. 3 ("3. Bd., 2. Abth.") appeared, Göttingen, Vandenhoeck & Ruprecht, 1850, under title: Die Nationalliteratur der Spanier Seit dem Anfange des 19. Jahrh. Von Ed. Brinckmeier...Added t.-p.: Geschichte der Künste und Wissenschaften seit der Wiedarherstellung derselben bis an das Ende des achtzehnten Jahrhunderts. Von einer Gesellschaft gelehrter Männer ausgearbeitet. Dritte Abtheilung. Geschichte der schönen Wissenschaften, von Friedrich Bouterwek. Göttingen, J.F. Röwer, 1801-19.V. 1-2. Introduction (40 p.) Italy.--v. 3. Spain.--v. 4. Portugal.--v. 5-6. France.--v. 7-8. England.--v. 9-11. Germany.--v. 12. Classified table of contents, and author index.Europeana-GoogleBook
Het totaal overziende
No full textOverzicht van waterbouwkundige innovaties, uitgegeven naar aanleiding van het emiritaat van prof. J.F. Agema. 1. Vrijling, J.K., Het totaal overziende; 2. Verkerk, H., Afsluiting Zuiderzee; 3. Agema, J.F., Dijkherstel oostelijk Zuid-Beveland; 4. Estourgie, A.L.P., Aanleg nieuwe havenmond Hoek van Holland; 5. Verbeek, G., Bijzonder materieel bij de uitvoering van de stormvloedkering in de Oosterschelde; 6. Struik, P., Optimalisatie van het ontwerp van de compartimenteringswerken in de Oosterschelde; 7. Altink, H., Alternatieven en keuze koelwatersysteem, Madras, IndiaHydraulic EngineeringCivil Engineering and Geoscience
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