Search results for 'A. Lindenmayer' (try it on Scholar)

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  1. C. J. Weyer, P. D. Nieuwkoop & A. Lindenmayer (1977). A Diffusion Model for Mesoderm Induction in Amphibian Embryos. Acta Biotheoretica 26 (3).score: 600.0
    In this paper we try to answer the question whether diffusion is a possible mechanism to explain mesoderm induction in Amphibians. First the embryological data are discussed and a hypothesis for mesoderm formation is set forth. The blastula being essentially a hollow sphere, we assume that the induction mechanism in an embryo at the blastula stage can be simulated by diffusion-reaction processes on spherical surfaces. A model is constructed for the simple case when the source is held constant with respect (...)
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  2. Lena Gustafsson, Susan C. Baker, Jürgen Bauhus, William J. Beese, Angus Brodie, Jari Kouki, David B. Lindenmayer, Asko Lõhmus, Guillermo Martínez Pastur & Christian Messier (2012). Retention Forestry to Maintain Multifunctional Forests: A World Perspective. Bioscience 62 (7):633-645.score: 420.0
    The majority of the world’s forests are used for multiple purposes, which often include the potentially conflicting goals of timber production and biodiversity conservation. A scientifically validated management approach that can reduce such conflicts is retention forestry, an approach modeled on natural processes, which emerged in the last 25 years as an alternative to clearcutting. A portion of the original stand is left unlogged to maintain the continuity of structural and compositional diversity. We detail retention forestry’s ecological role, review its (...)
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  3. Chris R. Margules, J. Michael Scott, Daniel B. Botkin, Malcolm L. Hunter, Gary E. Belovsky, David B. Lindenmayer, Kenneth W. Cummins, James A. Macmahon, Anthony Joern, Todd A. Crowl & Jerry F. Franklin (2004). Ten Suggestions to Strengthen the Science of Ecology. Bioscience 54 (4):345.score: 240.0
    There is inadequate replication over time and space in ecological studies. By replication we mean repeated studies in different ecosystems and in the same ecosystem over time.This lack of replication also means that ecologists cannot achieve an adequate understanding of scaling issues, even though these issues have become fashionable (Hewitt et al. 2002).
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  4. Chris G. De Koster & Aristid Lindenmayer (1987). Discrete and Continuous Models for Heterocyst Differentiation in Growing Filaments of Blue-Green Bacteria. Acta Biotheoretica 36 (4).score: 120.0
    Heterocyst spacing in blue-green bacteria is widely assumed to be due to a diffusible inhibitor. The inhibitor, a nitrogen-rich compound, probably glutamine, is produced via the N2-fixing enzymes of the heterocyst and in turn serves to suppress the induction of these enzymes and of the differentiation of vegetative cells to heterocysts. This simple morphogenetic mechanism operating in growing cellular filaments ofAnabaena species is investigated on the basis of a continuous and a discrete cellular model, as well as by cell-by-cell (...)
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  5. Marisa Macari (2009). Saving the Earth as a Career: Advice on Becoming a Conservation Professional. By Malcolm L. Hunter Jr, David B. Lindenmayer & Aram J. K. Calhoun. Pp. 200. (Blackwell, Oxford, 2007.) £12.99, ISBN 9-781-405-167611, Paperback. [REVIEW] Journal of Biosocial Science 41 (4):559-560.score: 120.0
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  6. Yoel Matveyev (2011). Between Enlightenment and Romanticism: Computational Kabbalah of Rabbi Pinchas Elijah Hurwitz. History and Philosophy of Logic 32 (1):85-101.score: 24.0
    This article shows that Rabbi Pinchas Elijah Hurwitz, a major eighteenth-century kabbalist, Orthodox rabbi and Enlightenment thinker, who merged Lurianic Kabbalah with Kantian philosophy, attempted to describe God and the world in terms of formal grammars and abstract information processes. He resolves a number of Kant's dualistic views by introducing prophecy as a tool that allows a mystic's mind to perform transfinite hypercomputation and to obtain a priori knowledge about things usually known only a posteriori. According to Hurwitz, the reality (...)
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