Acta Biotheoretica

ISSNs: 0001-5342, 1572-8358

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  1. Teleological functional explanations: a new naturalist synthesis.Mihnea Capraru - 2024 - Acta Biotheoretica 72 (5):1--22.
    The etiological account of teleological function is beset by several difficulties, which I propose to solve by grafting onto the etiological theory a subordinated goal-contribution clause. This approach enables us to ascribe neither too many teleofunctions nor too few; to give a unitary, one-clause analysis that works just as well for teleological functions derived from Darwinian evolution, as for those derived from human intention; and finally, to save the etiological theory from falsification, by explaining how, in spite of appearances, the (...)
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    How (not) to Talk to a Plant: An Application of Automata Theory to Plant Communication.Lorenzo Baravalle - 2024 - Acta Biotheoretica 72 (3):1-21.
    Plants are capable of a range of complex interactions with the environment. Over the last decade, some authors have used this as evidence to argue that plants are cognitive agents. While there is no consensus on this view, it is certainly interesting to approach the debate from a comparative perspective, trying to understand whether different lineages of plants show different degrees of responsiveness to environmental cues, and how their responses compare with those of animals or humans. In this paper, I (...)
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    The Geometry of Normal Tissue and Cancer Gene Expression Manifolds.Joan Nieves & Augusto Gonzalez - 2024 - Acta Biotheoretica 72 (3):1-11.
    A recent paper shows that in gene expression space the manifold spanned by normal tissues and the manifold spanned by the corresponding tumors are disjoint. The statement is based on a two-dimensional projection of gene expression data. In the present paper, we show that, for the multi-dimensional vectors defining the centers of cloud samples: 1. The closest tumor to a given normal tissue is the tumor developed in that tissue, 2. Two normal tissues define quasi-orthogonal directions, 3. A tumor may (...)
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    Paternal Inheritance of Mitochondrial DNA May Lead to Dioecy in Conifers.Tom J. de Jong & Avi Shmida - 2024 - Acta Biotheoretica 72 (2):1-33.
    In angiosperms cytoplasmic DNA is typically passed on maternally through ovules. Genes in the mtDNA may cause male sterility. When male-sterile (female) cytotypes produce more seeds than cosexuals, they pass on more copies of their mtDNA and will co-occur with cosexuals with a neutral cytotype. Cytoplasmic gynodioecy is a well-known phenomenon in angiosperms, both in wild and crop plants. In some conifer families (e.g. Pinaceae) mitochondria are also maternally inherited. However in some other families (e.g. Taxaceae and Cupressaceae) mtDNA is (...)
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    Y-chromosome Degeneration due to Speciation and Founder Effect.Nianqin Zhang & Yongjun Zhang - 2024 - Acta Biotheoretica 72 (2):1-16.
    The Y chromosome in the XY sex-determination system is often shorter than its X counterpart, a condition attributed to degeneration after Y recombination ceases. Contrary to the traditional view of continuous, gradual degeneration, our study reveals stabilization within large mating populations. In these populations, we demonstrate that both mutant and active alleles on the Y chromosome can reach equilibrium through a mutation-selection balance. However, the emergence of a new species, particularly through the founder effect, can disrupt this equilibrium. Specifically, if (...)
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    Reorienting the Debate on Biological Individuality: Politics and Practices: Review of Alison K. McConwell. Biological Individuality. Elements in the Philosophy of Biology. Cambridge: Cambridge University Press. 93pp. DOI:https://doi.org/10.1017/9781108942775; ISBN: 9781009387422. [REVIEW]Rose Trappes - 2024 - Acta Biotheoretica 72 (1):4.
    Biological individuality is without a doubt a key concept in philosophy of biology. Questions around the individuality of organisms, species, and biological systems can be traced throughout the philosophy of biology since the discipline’s inception, not to mention the sustained attention they have received in biology and philosophy more broadly. It’s high time the topic got its own Cambridge Element. McConwell’s Biological Individuality falls short of an authoritative overview of the debate on biological individuality. However, it sends a welcome message (...)
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  7.  15
    Model of Calcium Dynamics Regulating $$IP_{3}$$, ATP and Insulin Production in a Pancreatic $$\beta$$-Cell. Vaishali & Neeru Adlakha - 2024 - Acta Biotheoretica 72 (1):1-26.
    The calcium signals regulate the production and secretion of many signaling molecules like inositol trisphosphate ( $$IP_{3}$$ ) and adenosine triphosphate (ATP) in various cells including pancreatic $$\beta$$ -cells. The calcium signaling mechanisms regulating $$IP_{3}$$, ATP and insulin responsible for various functions of $$\beta$$ -cells are still not well understood. Any disturbance in these mechanisms can alter the functions of $$\beta$$ -cells leading to diabetes and metabolic disorders. Therefore, a mathematical model is proposed by incorporating the reaction-diffusion equation for calcium (...)
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  8.  19
    What Influence Could the Acceptance of Visitors Cause on the Epidemic Dynamics of a Reinfectious Disease?: A Mathematical Model.Ying Xie, Ishfaq Ahmad, ThankGod I. S. Ikpe, Elza F. Sofia & Hiromi Seno - 2024 - Acta Biotheoretica 72 (1):1-42.
    The globalization in business and tourism becomes crucial more and more for the economical sustainability of local communities. In the presence of an epidemic outbreak, there must be such a decision on the policy by the host community as whether to accept visitors or not, the number of acceptable visitors, or the condition for acceptable visitors. Making use of an SIRI type of mathematical model, we consider the influence of visitors on the spread of a reinfectious disease in a community, (...)
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