Results for 'regeneration'

14 found
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  1. Regeneration of Hydra From Aggregated Cells.Alfred Gierer, S. Berking, H. Bode, C. N. David, K. Flick, G. Hansmann, H. Schaller & E. Trenkner - 1972 - Nature New Biology 239:98-101.
    • Aggregates of previously isolated cells of Hydra are capable, under suitable solvant conditions, of regeneration forming complete animals. In a first stage, ecto- and endodermal cells sort out, producing the bilayered hollow structure characteristic of Hydra tissue; thereafter, heads are formed (even if the original cell preparation contained no head cells), eventually leading to the separation of normal animals with head, body column and foot. Hydra appears to be the highest type of organism that allows for regeneration (...)
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  2. A Theory of Biological Pattern Formation.Alfred Gierer & Hans Meinhardt - 1972 - Kybernetik, Continued as Biological Cybernetics 12 (1):30 - 39.
    The paper addresses the formation of striking patterns within originally near-homogenous tissue, the process prototypical for embryology, and represented in particularly purist form by cut sections of hydra regenerating, by internal reorganisation of the pre-existing tissue, a complete animal with head and foot. The essential requirements are autocatalytic, self-enhancing activation, combined with inhibitory or depletion effects of wider range – “lateral inhibition”. Not only de-novo-pattern formation, but also well known, striking features of developmental regulation such as induction, inhibition, and proportion (...)
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  3. Concepts and Dimensions of Conversion.Domenic Marbaniang - manuscript
    Since religious experiences are dependent on religious ‘truths’, and religious ‘truths’ are usually beyond scientific investigation, religious beliefs vary a lot and each claims credence of itself. Religious experiences leading to religious conversions or religious conversions due to conviction of certain religious beliefs are often observable. Whether a particular religious belief is true or false is dependent on the kind of criteria used for the measurement. Not all religions accept Logic as criteria, though.
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  4. Classification of Apple Fruits by Deep Learning.Mohammed O. Al-Shawwa & Samy S. Abu-Naser - 2020 - International Journal of Academic Engineering Research (IJAER) 3 (12):1-7.
    Abstract: Apple is a plant species that follows the apple genus, which is a fruit because it contains seeds of the pink family. It is one of the most fruit trees in terms of agriculture. The apple tree is small in length from 3 to 12 meters. Several recent studies have shown many health benefits of apples. It helps with the strengthening of the brain, heart, and stomach. It is used in the treatment of joint pain and limberness. It is (...)
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  5. Generation of Biological Patterns and Form: Some Physical, Mathematical and Logical Aspects.Alfred Gierer - 1981 - Progress in Biophysics and Molecular Biology 37 (1):1-48.
    While many different mechanisms contribute to the generation of spatial order in biological development, the formation of morphogenetic fields which in turn direct cell responses giving rise to pattern and form are of major importance and essential for embryogenesis and regeneration. Most likely the fields represent concentration patterns of substances produced by molecular kinetics. Short range autocatalytic activation in conjunction with longer range “lateral” inhibition or depletion effects is capable of generating such patterns (Gierer and Meinhardt, 1972). Non-linear reactions (...)
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  6.  97
    A Guide to Kant’s Treatment of Grace.Pablo Muchnik & Lawrence Pasternack - 2017 - Con-Textos Kantianos 6:256-271.
    This Guide is designed to restore the theological background that informs Kant’s treatment of grace in Religion to its rightful place. This background is essential not only to understand the nature of Kant’s overall project in this book, namely, to determine the “association” or “union” between Christianity (as a historical faith) and rational religion, but also to dispel the impression of “internal contradictions” and conundrums” that contemporary interpreters associate with Kant’s treatment of grace and moral regeneration. That impression, we (...)
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  7. Heraclitean Critique of Kantian and Enlightenment Ethics Through the Fijian Ethos.Erman Kaplama - 2016 - Cosmos and History 12 (1):143-165.
    Kant makes a much-unexpected confession in a much-unexpected place. In the Criticism of the third paralogism of transcendental psychology of the first Critique Kant accepts the irrefutability of the Heraclitean notion of universal becoming or the transitory nature of all things, admitting the impossibility of positing a totally persistent and self-conscious subject. The major Heraclitean doctrine of panta rhei makes it impossible to conduct philosophical inquiry by assuming a self-conscious subject or “I,” which would potentially be in constant motion like (...)
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  8. The Double-Movement Model of Forgiveness in Buddhist and Christian Rituals.Paul Reasoner & Charles Taliaferro - 2009 - European Journal for Philosophy of Religion 1 (1):27 - 39.
    We offer a model of moral reform and regeneration that involves a wrong-doer making two movements: on the one hand, he identifies with himself as the one who did the act, while he also intentionally moves away from that self (or set of desires and intentions) and moves toward a transformed identity. We see this model at work in the formal practice of contrition and reform in Christian and Buddhist rites. This paper is part of a broader project we (...)
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  9. The Hydra Model - a Model for What?Alfred Gierer - 2012 - International Journal of Developmental Biology 56:437-445.
    The introductory personal remarks refer to my motivations for choosing research projects, and for moving from physics to molecular biology and then to development, with Hydra as a model system. Historically, Trembley’s discovery of Hydra regeneration in 1744 was the begin¬ning of developmental biology as we understand it, with passionate debates about preformation versus de novo generation, mechanisms versus organisms. In fact, seemingly conflicting bottom-up and top-down concepts are both required in combination to understand development. In modern terms, this (...)
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  10.  68
    Secolarizzare i Beni culturali. Apologia di una prospettiva “risacralizzante”.Luca Corchia - 2016 - Rivista Trimestrale di Scienza Dell’Amministrazione (1):13-30.
    After a critique of the conservative and speculative approaches dominating the field of the protection and promotion of cultural heritage, the paper introduces a sociological perspective that considers cultural heritage an essential factor of identification and belonging, as well as a mean for the reproduction of life forms. The heritage of the past, in fact, is a living body contributing to the symbolic transmis-sion of the aesthetic, ethical and cognitive values of communities. Rather than the protection of guardians and the (...)
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  11.  39
    Review: Cohen, The Heart as Locus of Moral Struggle in Religion.Pablo Muchnik - forthcoming - Palgrave McMillan.
    This paper explores a usually neglected notion in Kant’s account of moral fall and regeneration in Religion: the notion of “heart” (Herz). This notion belongs to a constellation of concepts that Kant develops for the purposes of moral imputation and the attribution of responsibility. The other chief components of Kant’s conceptual framework are “propensity” (Hang), “character” (Charakter), and “disposition” (Gesinnung). Although interpreters have tended to use these notions interchangeably, understanding their proper meaning, function, and scope in Kantian ethics is (...)
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  12. Apple Fruits Classification Using Deep Learning.Shawwa Mohammad - 2020 - International Journal of Academic Engineering Research (IJAER) 3 (12):1-6.
    Apple is a plant species that follows the apple genus, which is a fruit because it contains seeds of the pink family. It is one of the most fruit trees in terms of agriculture. The apple tree is small in length from 3 to 12 meters. Several recent studies have shown many health benefits of apples. It helps with the strengthening of the brain, heart, and stomach. It is used in the treatment of joint pain and limberness. It is opposite. (...)
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  13.  11
    Gametogênese Animal: Espermatogênese e Ovogênese.Emanuel Isaque Cordeiro da Silva - manuscript
    GAMETOGÊNESE -/- Emanuel Isaque Cordeiro da Silva Instituto Agronômico de Pernambuco Departamento de Zootecnia – UFRPE Embrapa Semiárido -/- • _____OBJETIVO -/- Os estudantes bem informados, estão a buscando conhecimento a todo momento. O estudante de Veterinária e Zootecnia, sabe que a Reprodução é uma área de primordial importância para sua carreira. Logo, o conhecimento da mesma torna-se indispensável. No primeiro trabalho da série fisiologia reprodutiva dos animais domésticos, foi abordado de forma clara, didática e objetiva os mecanismos de diferenciação (...)
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  14. On Creatively Destructing.Konstantina Kalfa - 2014 - Rethinking Marxism 26 (4):581-591.
    Capitalism—as Marx has shown and Schumpeter has reminded us—has always promoted creative destruction practices. What in fact helps capitalism survive is the constant renewal of its products, modes of production, and needs through its own self-destructiveness. Capitalist destruction is a clearing out, a maneuver, a revaluation, and the presupposition for creation, all at once. It is a unification, the embracing of multiple and seemingly incompatible activities whose common component mainly consists in positivity: in their ability to reverse, to beautify destruction (...)
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