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of ecological (also biological) variables b which interact in their dynamic t evolution: det dbt dt = f (et, bt)'dt = 9 (et, bt)· Among the solution paths to this interaction between economic and ecologi­ cal variables, we look for those which are sustainable. Sustainable paths are typically those along which the values of certain key stocks are always pos­ itive, these key stocks being important environmental resources. The types of paths on which certain variables can be positive forever include station­ ary solutions with appropriate positivity conditions, or limit cycles or chaotic attractors satisfying the same positivity conditions. These paths, and the paths which approach them, constitute the set of sustainable paths. From amongst these we have to choose one or more which are in some sense the best. Note that rather than imposing positivity of certain stocks in the long run as a condition for sustainability, we would prefer to derive this as a characteristic of optimal solutions from more fundamental judgements about the valuation of stocks and flows: this is the route pursued by the papers in this volume. The introductory paper by Heal in Section I reviews these matters in gen­ eral terms, not going into technical details: it discusses the precedents for a concept of sustainability in welfare economics, and reviews alternative opti­ mality concepts and their connection to sustainability.

Papers and Letters from the northern Registers (1265 - 1415) edited by James Raine (1830 - 1896), Canon of York.

Desde la proclamación de María como madre de Dios en el concilio de Éfeso del año 431, la devoción y culto a la Virgen fue en aumento en Europa. A ello contribuyó posteriormente y de forma decisiva la orden religiosa de los cluniacenses, que favorecieron su difusión y abundaron en la creciente popularidad de sus milagros. En este ambiente se fragua la composición de las Cantigas de Alfonso X el Sabio. ¿Pero quién fue en realidad el autor de sus letras y de su música? Los numerosos trovadores de la corte real nos advierten que la autoría de las Cantigas no es patrimonio exclusivo del rey, aunque éste debió alentar la obra e inspiró su contenido. La finalidad de este libro es presentar la trascripción de las Cantigas que integraron el primer corpus de milagros de Alfonso X. Ofrece también una síntesis sobre el origen del culto mariano, analiza los códices, los tratados teóricos del siglo XIII y las diversas fuentes sobre los cuales se sustenta una de las composiciones más sobresalientes de la Europa feudal.

A complete and detailed description of the Hebrew manuscript collection of the University of Leyden, primarily the collections of the distinguished Levin Warner, Dutch ambassador to the Ottoman Empire.

¿Quién era Xavier Zubiri? De él llegaron a circular tópicos de diversa naturaleza: estereotipos filosóficos encasillándole como neoescolástico, filósofo cristiano, o como existencialista, orteguiano o heideggeriano; acusaciones teológicas tachándole de modernista y heterodoxo o de ultraortodoxo; calificativos políticos tildándole de republicano, de'exiliado interior', y también de colaboracionista, filofranquista y hasta de nacionalista; juicios sobre su persona tratándole de cobarde, distante, frío, retraído, desinteresado de toda acción cultural, y de valiente, íntimo, cálido, cercano, y comprometido con el impulso de la investigación en España. Detrás de los panegíricos y hagiografías, en los que se le aureolaba con toda clase de elogios, y de los panfletos y libelos, en los que se le denigraba y vituperaba hasta con insultos, respiraba un ser humano con sus claroscuros y sus ambigüedades, sus aciertos y errores, sus grandezas y miserias, sus amigos y detractores. Esta obra recoge las conversaciones -en ocasiones las últimas- con personas que le conocieron y le trataron en diferentes momentos de su vida: Luis Atxaerandio, Alberto del Campo, Diego Gracia, Cristóbal Halffter, Víctor Ímaz, Pedro Laín Entralgo, José Lladó, Alfonso López Quintás, Julián Marías, Manuel Mindán, Javier Monserrat, Josep Palau i Fabre, Raimon Panikkar, Joaquín Ruiz-Giménez y Miquel Siguán. Conversaciones que sin duda ayudarán a descubrir la persona de Xavier Zubiri detrás de los lugares comunes y más allá del personaje enigmático y solitario que durante décadas evitó la vida pública.

Proporcionando uma cobertura direta dos agentes físicos para melhorar os resultados do paciente, Agentes Físicos em Reabilitação: Da Pesquisa à Prática, 3a Edição é o seu guia para usar com mais segurança e eficácia os agentes físicos na sua prática de reabilitação. Este valioso recurso detalha as informações mais atualizadas sobre lasers e fototerapia, agentes térmicos, ultrassom, correntes elétricas, hidroterapia, tração, compressão e radiação eletromagnética. Amplie suas opções de tratamento e garanta a segurança do paciente com:Um NOVO capítulo que reflete a pesquisa mais recente e as recomendações para aplicações clínicas para laser e fototerapia.Quadros de Técnica de Aplicação que detalham instruções passo a passo para o uso dos agentes.Quadros de Contraindicações e quadros de Precauções com informações importantes de segurança.Quadros de Dicas Clínicas que enfatizam os principais pontos de cada capítulo.Estudos de Casos Clínicos atualizados para ajudar você a se preparar para as provas.

This book presents the first comprehensive reference on noun declensions in Modern Irish. Whereas traditional descriptions of noun inflection are notoriously complex and filled with exceptions and irregularities, this reference guide provides a systematic and straightforward characterization of nominal paradigms, which also captures important generalizations about the inflection of nouns. Andrew Carnie proposes ten declension classes instead of the traditional five and separates off seven major types of plural formation. He provides fully inflected paradigms for 1200 nouns, and a reference list of 10,000 Irish nouns annotated with their new declension class, their plural type and the form of the genitive singular and common case (nominative) plural. The book also includes parallel information on the inflection of adjectives and prepositions. This unique reference tool will be invaluable not only to language researchers and authors, but to teachers and students of the language, whether they are native speakers or beginners.

A rare collection of diplomatic treaties, agreements and letters made between the monarchs of England and other European kingdoms during the medieval period. For the first time Foedera is published combined with Hardy's English Syllabus, and in searchable format, to revolutionize access to this source. Thomas Rymer's monumental work in 20 volumes was published between 1704 and 1713, but remains unsurpassed in many ways by subsequent works, especially since the documents it provides are full transcriptions rather than calendared abridgements.

When asked their religious identification, more people answer'none'in the Pacific Northwest than in any other region of the United States. But this does not mean that the region's religious institutions are without power or that Northwesterners who do attend no place of worship are without spiritual commitments. With no dominant denomination, Evangelicals, Mainline Protestants, Catholics, Jews, adherents of Pacific Rim religious traditions, indigenous groups, spiritual environmentalists, and secularists must vie or sometimes must cooperate with each other to address the regions'pressing economic, environmental, and social issues. One cannot understand this complex region without understanding the fluid religious commitments of its inhabitants. And one cannot understand religion in Oregon, Washington, and Alaska without Religion and Public Life in the Pacific Northwest.

Der Autor fasst die sehr unterschiedlichen, empirisch beobachteten Framing-Effekte zu drei Typen zusammen. Bei diesen Typen sind jeweils spezifische Entstehungsprozesse und Entscheidungsdeterminanten relevant, die im Rahmen der Rational-Choice-Theorie (RCT) vernachlässigt werden. Für jeden der Problembereiche wird daher eine allgemeine theoretische Erweiterung der RCT vorgeschlagen und deren Prognosen am Beispiel des'Asian Disease Problem'empirisch getestet. Die experimentellen Ergebnisse mit rund 2000 Versuchspersonen zeigen, dass sich die Unterschiede in der Informationsdarstellung gleichzeitig vermittelt durch alle drei Framing-Prozesse auf das Entscheidungsverhalte

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