How do we make ourselves a Whiteheadian proposition? This question exposes the multivalent connections between postmodern thought and Whitehead's philosophy, with particular attention to his understanding of propositions. Edited by Roland Faber, Michael Halewood, and Andrew M. Davis, Propositions in the Making articulates the newest reaches of Whiteheadian propositions for a postmodern world. It does so by activating interdisciplinary lures of feeling, living, and co-creating the world anew. Rather than a "logical assertion," Whitehead described a proposition as a "lure for feeling" for a collectivity to come. It cannot be reduced to the verbal content of logical justifications, but rather the feeling content of aesthetic valuations. In creatively expressing these propositions in wide relevance to existential, ethical, educational, theological, aesthetic, technological, and societal concerns, the contributors to this volume enact nothing short of "a Whiteheadian Laboratory."

Los ensayos giran alrededor de un tema central: la felicidad, la infancia, la pereza, el perdon, la interlocucion, el dinero, el amor, la mujer, la belleza, el juego. De la felicidad, tema complejo, se ocupan diversas disciplinas: psicologia, filosofia, antropologia, sociologia, neurofisiologia, sin duda otras, y diversas practicas como la religion. Y es un tema que parece haberse puesto de moda hoy, lo que a la vez podria ser la mejor de las senales o el mas inquietante de los sintomas. Algunas marcas comerciales la incluyen en sus enunciados publicitarios, se disenan encuestas para medir los grados de felicidad de las naciones, y hasta en varias de ellas se busca otorgarle rango de derecho constitucional, o se lo ha hecho ya. Por mi parte, creo en la posibilidad de la felicidad, en la realidad de experiencias genuinamente felices. Es de esa certidumbre de la que partimos y la que nos anima a querer discurrir sobre ella en probable beneficio de otros.

As natural habitat continues to be lost and the world steadily becomes more urbanized, biologists are increasingly studying the effect this has on wildlife. Birds are particularly good model systems since their life history, behaviour, and physiology are especially influenced by directly measurable environmental factors such as light and sound pollution. It is therefore relatively easy to compare urban individuals and populations with their rural counterparts. This accessible text focuses on the behavioural and physiological mechanisms which facilitate adaptation and on the evolutionary process that ensues. It discusses topics such as acoustics, reproductive cues, disease, and artificial feeding, and includes a series of case studies illustrating cutting edge research on these areas. Avian Urban Ecology is suitable for professional avian biologists and ornithologists as well as graduate students of avian ecology, evolution, and conservation. It will also be of relevance and use to a more general audience of urban ecologists and conservation biologists.