نتایج جستجو برای: living systems

تعداد نتایج: 1345339  

Journal: :Journal of Computational and Applied Mathematics 2006

Journal: :Information 2011
Robert E. Ulanowicz

In 1872 Ludwig von Boltzmann derived a statistical formula to represent the entropy (an apophasis) of a highly simplistic system. In 1948 Claude Shannon independently formulated the same expression to capture the positivist essence of information. Such contradictory thrusts engendered decades of ambiguity concerning exactly what is conveyed by the expression. Resolution of widespread confusion ...

2005
Andy Gracie Brian Lee Yung Rowe

This paper presents an artistic collaboration entitled ‘small work for robot and insects’ (2002). The project is an installation composed of a hexapod robot and a group of crickets that are poised for communication. This work applies artificial intelligence-based learning systems to the task of understanding and interpreting information from living systems. From a conceptual standpoint, the wor...

Journal: :Artificial life 2013
Carlos Gershenson

This article presents an overview of current and potential applications of living technology to some urban problems. Living technology can be described as technology that exhibits the core features of living systems. These features can be useful to solve dynamic problems. In particular, urban problems concerning mobility, logistics, telecommunications, governance, safety, sustainability, and so...

2016
Eva Judy

Non covalent interactions in biological macromolecules mediate almost all the chemical processes in living systems. Developments in microcalorimetry has enabled a quantitative understanding of such interactions and contributed significantly to biotechnology, medicine, and novel drug design. This report addresses advancement and use of ultrasensitive microcalorimetry in connecting bioenergetics ...

2009
Kalevi Kull

The field of semiotics is described as a general study of knowing. Knowing in a broad sense as a process that assumes (and includes) at least memory (together with heredity), anticipation, communication, meaningful information, and needs, is a distinctive feature of living systems. Sciences are distinguished accordingly into phi-sciences (that use physicalist methodology) and sigma-sciences (th...

2011
Richard P. Feynman

Molecules are lifeless. Yet, in appropriate complexity and number, molecules compose living things. These living systems are distinct from the inanimate world because they have certain extraordinary properties. They can grow, move, perform the incredible chemistry of metabolism, respond to stimuli from the environment, and most significantly, replicate themselves with exceptional fidelity. The ...

Journal: :Entropy 2017
Roberto Zivieri Nicola Pacini

Lactic fermentation and respiration are important metabolic pathways on which life is based. Here, the rate of entropy in a cell associated to fermentation and respiration processes in glucose catabolism of living systems is calculated. This is done for both internal and external heat and matter transport according to a thermodynamic approach based on Prigogine’s formalism. It is shown that the...

2011
Alessandro Filisetti Alex Graudenzi Roberto Serra Marco Villani Davide De Lucrezia Irene Poli

In most theories concerning the origin of life autocatalytic sets are supposed to play an important role in the phase transition between non-living and living matter. Although several theoretical models describe this phase transition, it is very hard to recreate the experimental conditions in wet lab. We here introduce a stochastic model of catalytic reaction networks with energy constraints, d...

Journal: :Systems 2016
Gandolfo Dominici Maurice Yolles

Since the beginning of the XXI century, marketing theory has moved through a series of epistemological shifts from modern positivism to postmodern constructivism. This has resulted in a series of changes to the main concepts of “traditional” marketing such as: market, product, customer, and value. These shifts can be better viewed under a social cybernetics approach such as agency theory. This ...

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