But Turing's theory didn't explain how the patterns would remain so defined in a species such as the ornate boxfish. (yahoo.com)
When the scientists computed Turing's equation, modified to include this process, the simulations they generated showed the molecules' path had always created sharp outlines, unlike the fuzzy, ill-defined spots that Turing's theory alone would create. (yahoo.com)
The idea of sharpening interfaces is a good one, and definitely important for biological function," said Dr. Andrew Krause , an assistant professor of applied mathematics at Durham University in the United Kingdom who has studied Turing's theory , in an email. (yahoo.com)
Turing's hypothesis first appeared in 1952 in a paper he wrote titled "The Chemical Basis of Morphogenesis. (yahoo.com)
While diffusiophoresis is a suggested modification to sharpen Turing's theory based on the recent study, there could be other possible solutions, said Jeremy Green , a professor of developmental biology at King's College London. (yahoo.com)
Green said he believes the study is likely to influence modeling and experimentation in the future, but there are still gaps in Turing's theory yet to be explored. (yahoo.com)
Green coauthored a February 2012 study that had found evidence to support Turing's theory when it came to the ridges on a mouse's palate. (yahoo.com)
Turing5
The Chemical Basis of Morphogenesis" is an article that the English mathematician Alan Turing wrote in 1952. (wikipedia.org)
Ici, je discute les développements ultérieurs des idées de Turing révélées par des documents d'archives moins connus, en particulier son projet d'article intitulé 'Outline of development of the Daisy'.Ces documents, replacés dans l'oeuvre mathématique de Turing sur la morphogénèse et la formation de motifs, témoignent d'avancées majeures qui vont bien au-delà de l'article de 1952. (bath.ac.uk)
On y montre en particulier que Turing s'est confronté à de nombreux problèmes ardus qui sont devenus dans les décennies suivantes des questions majeures en recherche mathématique, ce qui démontre une fois de plus un niveau de compétence technique hors norme qui était clairement à la fois bien en avance sur son temps, mais aussi indépendant de celui-ci. (bath.ac.uk)
En reconnaissant que la formation de motifs peut se comprendre grâce à des modèles mathématiques, aux vastes champs d'application, il est évident que l'héritage de Turing aurait pu être beaucoup plus important que celui de son papier de 1952.Une reproduction sensiblement révisée et complétée de son ébauche d'article 'Outline of development of the Daisy' est incluse en annexe. (bath.ac.uk)
In 1952 the article "The Chemical Basis of Morphogenesis" by the British mathematician and logician Alan M. Turing was published in Philosophical Transactions of the Royal Society of London. (asu.edu)
Jean-Paul Delahaye , Prolific author, mathematician , science popularizer and theoretical computer scientist researching algorithmic theory and its relation to our universe. (evodevouniverse.com)
Tissue5
This inflationary branching-arresting random walk model offers a more general paradigm for branching morphogenesis when the ductal epithelium grows cooperatively with the tissue into which it expands. (harvard.edu)
An organism's growth and transformation during its life cycle is a tremendously complex succession of processes and events but even a simplistic and limited theory, dealing with only the general trend and generating a broad vision of tissue organization, can drive specific studies and experiments to further inform this field of research. (nature.com)
Here, we report an efficient biomaterial system, termed micropatterned gut spheroid generator (µGSG), to generate gut spheroids from human pluripotent stem cells through mechanically enhanced tissue morphogenesis. (bvsalud.org)
This work unveils mechanobiological paradigms based on tissue architecture and surface tension for controlling tissue morphogenesis and advancing organoid technology. (bvsalud.org)
Tissue morphogenesis and patterning during development involve the segregation of cell types. (bvsalud.org)
Cells3
The present work introduces a computational implementation of some principles of a theory of organism development, namely that the default state of cells is proliferation and motility, and includes the principle of variation and organization by closure of constraints. (nature.com)
James Miller introduced the living systems theory 4 , where each system must include a number of critical subsystems, dealing with their structure, interaction, behavior and development, that can be applied from simple cells to full organisms. (nature.com)
This theory holds that tumors arise from 1 of 2 undifferentiated stem cells: the excretory duct reserve cell or the intercalated duct reserve cell. (medscape.com)
Self-organization2
Synergetics A more physically based theory of a universal self-organization. (naturalgenesis.net)
The structuration of consciousness as a unidirectional unfolding corresponds to the morphogenesis of socioeconomic self-organization. (p2pfoundation.net)
A sound theory of biological organization is clearly missing for a better interpretation of observational results and faster progress in understanding life complexity. (nature.com)
Evolutionary4
In any case, the author doesn't seem to understand what we're saying: that if their theory of embryonic folding and buckling is a correct description of how new body plans arise, an evolutionary model would still need to explain how those folding mechanisms could become encoded in the DNA. (evolutionnews.org)
Plant morphology, including morphogenesis, remains relevant to practically all disciplines of plant biology such as molecular genetics, physiology, ecology, evolutionary biology and systematics. (uzh.ch)
Robin Allott , author and scholar in linguistics, evolutionary psychology, and linguistic theories of cultural evolution . (evodevouniverse.com)
Current problems of evolutionary theory are pointed out. (ufn.ru)
Theoretical biology2
The theory, which can be called a reaction-diffusion theory of morphogenesis, has become a basic model in theoretical biology. (wikipedia.org)
Mathematical and theoretical biology , or biomathematics , is a branch of biology which employs theoretical analysis, mathematical models and abstractions of the living organisms to investigate the principles that govern the structure, development and behavior of the systems, as opposed to experimental biology which deals with the conduction of experiments to prove and validate the scientific theories. (wikipedia.org)
Chemical2
Folder inscribed, 'Chemical Theory of Morphogenesis. (cam.ac.uk)
His theory argued that animal patterns were not random, but rather a chemical reaction-diffusion process that systematically creates the spots on a leopard or stripes on a tiger, according to the University of Warwick . (yahoo.com)
Reveals1
Combining experimental findings and an active-phase-field morphomechanics theory, our study further reveals an instability-driven mechanism and a mechanosensitive phase diagram governing spheroid pearling and fission in µGSG. (bvsalud.org)
Patterns2
Grindrod, P. Patterns and Waves: The Theory and Applications of Reaction-Diffusion Equations, Clarendon Press (1991) Smoller, J. Shock Waves and Reaction Diffusion Equations, Springer (1994) Kerner, B. S. and Osipov, V. V. Autosolitons. (wikipedia.org)
We will use mathematical techniques to describe a fast variety of "real-world" systems: spreading of infectious diseases, onset of war, opinion formation, social systems, reliability of a space craft, patterns on the fur of animals (morphogenesis), formation of galaxies, traffic jams and others. (abdn.ac.uk)
Chapter1
Chapter 3classic Theories Of Economic Growth And Development 186953 PPT. (glassbox.tv)
Organism4
Lamarckism is a largely debunked theory of heredity that says changes acquired during the lifetime of an organism may be passed on to the next generation. (evolutionnews.org)
The availability of such a theory represents a fundamental progress in explaining both normal and pathological organism development. (nature.com)
This theory would deal with the way an organism spontaneously grows from a single cell to a complete and complex organism, introducing organization at the different development stages and homeostasis for a mature organism. (nature.com)
Theories of organism development have a long history and many contributions were proposed, starting from diverse premises and centering in different views. (nature.com)
Hypothesis2
Life sciences need a theory of organisms to test different hypothesis and consequences of its fundamental premises. (nature.com)
In this Theory and Hypothesis article I offer a general framework for thinking about this problem. (frontiersin.org)
Fundamental1
They explore the complexity of territorial production through a series of parallel investigations into fundamental territorial themes, such as rhythm, synchronization, melody, morphogenesis, and animism. (lu.se)
Model1
Wolpert's theory of positional information is presented and the concept of the model theory of morphogenesis is outlined. (ufn.ru)
History1
Thus, we arrive at the intersection of the thermodynamic theory of history and Gebser. (p2pfoundation.net)
Applications1
Various aspects of applications of information theory to problems of evolution are examined in detail. (ufn.ru)
Quantum1
To their surprise, they found that the agreement between theory and quantum simulation was more accurate than originally expected due to the presence of computational errors, which are omnipresent in current quantum computers. (mpg.de)
Paper1
The eruption mechanism still needs elucidation and the paper recommends that future research on eruption keeps this new theory in mind. (hindawi.com)
Mechanism1
A new theory on the eruption mechanism is presented. (hindawi.com)
General1
Thom, René (1972) Structural Stability and Morphogenesis: An Outline of a General Theory of Models. (bvsalud.org)
Arguments in favor of this theory are presented and its physical meaning disclosed, which reduces to degeneracy in the correspondence between the primary structure of a protein and its biologic function. (ufn.ru)
Two theories predominate: the bicellular stem cell theory and the multicellular theory. (medscape.com)
In the multicellular theory, each tumor type is associated with a specific differentiated cell of origin within the salivary gland unit. (medscape.com)
Recent evidence suggests that the bicellular stem cell theory is the more probable etiology of salivary gland neoplasms. (medscape.com)
Culture1
???? ??? : ?? ??? ???? ??????? ???? (Culture and Agency: The Place of Culture in Social Theory, 1988). (people.su)
The 1990s suggest a need to embrace chaos in some fashion, and chaos theory provides a fashionable set of insights that take us beyond those of past decades. (laetusinpraesens.org)
Field1
If \(X\) is a vector field on \(M\ ,\) the partition of \(M\) into its set of trajectories of \(X\) is the phase portrait of \(X\ .\) So the qualitative or geometric theory of Poincaré deals with the geometry of the phase portrait of differential equations. (scholarpedia.org)
Details1
I have taken Whitehead's philosophy to heart, if not the details of his theory. (i-sis.org.uk)
Science2
Sign up for CNN's Wonder Theory science newsletter. (yahoo.com)
But this portal was set aside as a 17th to 20th mechanical science (a necessary spiral turn) went on to reduce cosmos and matter to benthic particles and theories, sans nay identity or purpose. (naturalgenesis.net)
Flow2
Nonequilibrium Thermodynamics A theory of energy and information flow, usage, and dissipation for open living systems. (naturalgenesis.net)
In 1892 there appeared the thesis of Liapunov creating the remarkable theory of stability of individual orbits of a flow (Liapunov 1947). (scholarpedia.org)