Attacks nothing less than the currently prevailing worldphilosophy--humanism, which the author feels is exceedingly dangerous in itshidden assumptions.

Early in this volume, David Ehrenfeld describes what prophecy really is. Referring to the biblical prophets, he says they were not the "holy fortunetellers that the word prophet has come to signify....The business of prophecy is not simply foretelling the future; rather it is describing the present with exceptional truthfulness and accuracy." Once this is done, then it can be seen that broad aspects of the future have suddenly become apparent. The twentieth century is drawing to a chaotic close (...) amidst portents of unprecedented change and upheaval. The unravelling of societies and civilizations and the destruction of nature march together--linked--a fact whose enormous significance is often lost. In Beginning Again, David Ehrenfeld has undertaken the difficult task of describing the present clearly enough to reveal the future. Out of his broad vision emerges a glimpse of a new millennium: a vision at once frightening and comforting, a scene of great devastation and great rebuilding. Ehrenfeld ranges far and wide to present a coherent vision of our relationship with Nature--its many aspects and implications--as our century opens into the next millennium. Whether he is writing about the problem of loyalty to organizations, rights versus obligations, our over-managed society, the vanishing of established knowledge, the failure of experts, the triumph of dandelions, Dr. Seuss, Edward Teller, or the future of farming, he is always concerned with the intricate interaction between technology and nature. As in his classic book, The Arrogance of Humanism, Ehrenfeld never loses sight of our fatal love affair with the fantasy of control. We now have no choice, he argues, but to transform the dream of control, of progress, from one of overweening hubris, love of consumption, and the idiot's goal of perpetual growth, to one based on "the inventive imitation of nature," with its honesty, beauty, resilience, and durability. Few American writers and even fewer scientists can describe these timeless, transcendent qualities of nature so well. In "Places," the opening chapter, David Ehrenfeld tells about nightly vigils he spent alone on the moonlit beach of Tortuguero, watching giant sea turtles emerging from the sea to lay their eggs in the black sand where they were born. "I could watch the perfect white spheres falling," he writes. "Falling as they have fallen for a hundred million years, with the same slow cadence, always shielded from the rain or stars by the same massive bulk with the beaked head and the same large, myopic eyes rimmed with crusts of sand washed out by tears. Minutes and hours, days and months dissolve into eons. I am on an Oligocene beach, an Eocene beach, a Cretaceous beach--the scene is the same. It is night, the turtles are coming back, always back; I hear a deep hiss of breath and catch a glint of wet shell as the continents slide and crash, the oceans form and grow.". (shrink)

The subject of sexuality among elderly patients with dementia was examined, focusing on two main aspects: the sexual behaviour of institutionalized elderly people with dementia; and the reactions of other patients, staff and family members to this behaviour. The behaviour was found to be mostly heterosexual and ranged from love and caring to romance and outright eroticism. Reactions varied, being accepting of love and care but often objecting to erotic behaviour. Understanding of the sexual needs of elderly people should become (...) an integral part of the training and continued education of health care staff, thus helping to resolve conflicts and clarify common misconceptions. (shrink)

Im transnationalen Migrationsmodell und seinen Nachfolgern manifestiert sich die kopernikanische Wende der Migrationsforschung: Migrant*innen und ihre Netzwerke sind nicht mehr Gegenstand (Objekt) der Sozialforschung, sondern werden als Träger*innen sozialer Welten (Subjekte) identifiziert und bilden den neuen analytischen Ausgangspunkt. Coretta Ehrenfeld lotet die philosophische Bedeutung dieser migrantischen Subjektivierung aus: Diese besteht unter anderem in der Kritik sozialtheoretischer Trägerschaft in nationalgesellschaftlicher Gestalt sowie infolgedessen in der begrifflichen Auflösung der Dichotomie zwischen sesshaft und migrantisch.

In line with Allen Newell's challenge to develop complete cognitive architectures, and motivated by a recent proposal for a unifying subsymbolic computational theory of cognition, we introduce the cognitive control architecture SEMLINCS. SEMLINCS models the development of an embodied cognitive agent that learns discrete production rule-like structures from its own, autonomously gathered, continuous sensorimotor experiences. Moreover, the agent uses the developing knowledge to plan and control environmental interactions in a versatile, goal-directed, and self-motivated manner. Thus, in contrast to several well-known (...) symbolic cognitive architectures, SEMLINCS is not provided with production rules and the involved symbols, but it learns them. In this paper, the actual implementation of SEMLINCS causes learning and self-motivated, autonomous behavioral control of the game figure Mario in a clone of the computer game Super Mario Bros. Our evaluations highlight the successful development of behavioral versatility as well as the learning of suitable production rules and the involved symbols from sensorimotor experiences. Moreover, knowledge- and motivation-dependent individualizations of the agents’ behavioral tendencies are shown. Finally, interaction sequences can be planned on the sensorimotor-grounded production rule level. Current limitations directly point toward the need for several further enhancements, which may be integrated into SEMLINCS in the near future. Overall, SEMLINCS may be viewed as an architecture that allows the functional and computational modeling of embodied cognitive development, whereby the current main focus lies on the development of production rules from sensorimotor experiences. (shrink)

Many studies have attempted to assess the relative effects of different vectors of a disease on animal populations. To this end, three measures have been proposed: Vectorial efficiency, Vectorial capacity and recently Vectorial effectiveness (or Vectorial impact). In this study we relate these measures to derive some of their properties emphasising in the vectorial impact for its importance in both, population performance of parasites and the proportion of the prevalence of one parasite due to a given vector. We applied the (...) quantitative expressions advanced in this study to a simple Chilean example with one parasite (Trypanosoma cruzi), two vectors (Triatoma infestans and Mepraia spinolai) and one animal population (humans: Chagas's disease). (shrink)

David Ehrenfeld argues that humanism emphasizes reason at the expense of emotion, and that its narrow focus on the use of reason to serve human interests leads to a dichotomy between man and nature in which ecological factors are subordinated to the satisfaction of human wants. In response, I argue that: (1) humanists stress employment of reflective reason and reason’s interrelations with other aspectsofthe human personality, (2) humanism’s typical commitment to naturalism locates man as part of nature and does (...) not entail an exclusive focus on human interests, and (3) humanism’s commitment to the legitimate sphere of human interests does not entail indifference to nonhuman nature, for a healthy environment is necessary for the long-term satisfaction of human interests. (shrink)

"At places distant from where you are, but also uncomfortably close," writes David Takacs, "a holocaust is under way. People are slashing, hacking, bulldozing, burning, poisoning, and otherwise destroying huge swaths of life on Earth at a furious pace." And a cadre of ecologists and conservation biologists has responded, vigorously promoting a new definition of nature: biodiversity --advocating it in Congress and on the Tonight Show; whispering it into the ears of foreign leaders redefining the boundaries of science and politics, (...) ethics and religion, nature and our ideas of nature. These scientists have infused the environmental movement with new focus and direction, but by engaging in such activities, they jeopardize the societal trust that allows them to be public spokespersons for nature in the first place. The Idea of Biodiversity analyzes what biodiversity represents to the biologists who operate in broader society on its behalf, drawing on in-depth interviews with the scientists most active today in the mission to preserve biodiversity, including Peter Raven, Thomas Lovejoy, Jane Lubchenco, and Paul Ehrlich. Takacs explores how and why these biologists shaped the concept of biodiversity and promoted it to society at large--examining their definitions of biodiversity their opinions about spirituality and its role in scientific work the notion of biodiversity as something of intrinsic value and their views on biophilia, E. O. Wilson's idea that humans are genetically predisposed to love nature. Takacs also looks at the work of twentieth-century forerunners of today's conservation biologists--Aldo Leopold, Charles S. Elton, Rachel Carson, David Ehrenfeld--and points out their contributions to the current debates. He takes readers to Costa Rica, where a group of scientists is using biodiversity to remake nature and society. And in an extended section, he profiles the thoughts and work of E. O. Wilson. "When I'm asked, 'should we save this species orthat species, or this place or that place?' the answer is always 'Yes!' with an exclamation point. Because it's obvious. And if you ask me to justify it, then I switch into a more cognitive consciousness and can start giving you reasons, economic reasons, aesthetic reasons. They're all dualistic, in a sense. But the feeling that underlies it is that 'yes!' And that 'yes!' comes out of the affirmation of being part of it all, being part of this whole evolutionary process. And agreeing with Arne Naess that each species, each entity, should be allowed to continue its evolution and to live out its destiny... just do its thing, as we say. Why not? And the 'why not?' is there's too many people."--Michael E. Soule, from an interview in The Idea of Biodiversity "An important contribution, a first distanced examination of a critical, modern topic by a scholarly, honest broker."--E. O. Wilson, Harvard University. (shrink)