Results 21 to 30 of about 15,858,106 (394)

The physics of higher-order interactions in complex systems [PDF]

open access: yesNature Physics, 2021
Complex networks have become the main paradigm for modelling the dynamics of interacting systems. However, networks are intrinsically limited to describing pairwise interactions, whereas real-world systems are often characterized by higher-order ...
F. Battiston   +13 more
semanticscholar   +1 more source

EFFECTIVE INTERACTIONS ARE EFFECTIVE INTERACTIONS [PDF]

open access: yesHadron Physics 2000, 2001
The subject of effective interactions is introduced and applications in both quantum mechanics and quantum field theory are presented. In particular the use of chiral perturbation theory as an effective low energy description of QCD is developed and it is argued that such methods rally are effective in both the meson and baryonic sectors.
openaire   +4 more sources

Quantum contact interactions [PDF]

open access: yes, 2002
The existence of several exotic phenomena, such as duality and spectral anholonomy is pointed out in one-dimensional quantum wire with a single defect. The topological structure in the spectral space which is behind these phenomena is identified.Comment:
I Tsutsui   +13 more
core   +2 more sources

Parametric mapping of cellular morphology in plant tissue sections by gray level granulometry

open access: yesPlant Methods, 2020
Background The cellular morphology of plant organs is strongly related to other physical properties such as shape, size, growth, mechanical properties or chemical composition. Cell morphology often vary depending on the type of tissue, or on the distance
David Legland   +2 more
doaj   +1 more source

Beyond element-wise interactions: identifying complex interactions in biological processes [PDF]

open access: yes, 2009
Background: Biological processes typically involve the interactions of a number of elements (genes, cells) acting on each others. Such processes are often modelled as networks whose nodes are the elements in question and edges pairwise relations between ...
A Kahvejian   +39 more
core   +3 more sources

Neutrinos and their interactions [PDF]

open access: yesThe European Physical Journal Special Topics, 2021
We present a short overview of the importance of the study of "Neutrino Interactions in the Intermediate and High Energy Region", with an introduction to the neutrinos and a very brief description about the collection of invited articles.
M. Sajjad Athar, S. K. Singh
openaire   +4 more sources

Mobility of pectin methylesterase in pectin/cellulose gels is enhanced by the presence of cellulose and by its catalytic capacity

open access: yesScientific Reports, 2019
The pectin methylesterase action is usually studied in a homogeneous aqueous medium in the presence of a large excess of soluble substrate and water. However in the cell wall, the water content is much lower, the substrate is cross-linked with itself or ...
Estelle Bonnin   +6 more
doaj   +1 more source

Interaction Grammars

open access: yesResearch on Language and Computation, 2009
Interaction Grammar (IG) is a grammatical formalism based on the notion of polarity. Polarities express the resource sensitivity of natural languages by modelling the distinction between saturated and unsaturated syntactic structures. Syntactic composition is represented as a chemical reaction guided by the saturation of polarities.
Guillaume, Bruno, Perrier, Guy
openaire   +5 more sources

Reconceptualizing sex, brain and psychopathology: interaction, interaction, interaction [PDF]

open access: yesBritish Journal of Pharmacology, 2014
In recent years there has been a growing recognition of the influence of sex on brain structure and function, and in relation, on the susceptibility, prevalence and response to treatment of psychiatric disorders. Most theories and descriptions of the effects of sex on the brain are dominated by an analogy to the current interpretation of the effects of
Daphna Joel, Roni Yankelevitch-Yahav
openaire   +2 more sources

Multiple Interactions in Herwig++ [PDF]

open access: yes, 2008
In this contribution we describe a new model of multiple partonic interactions that has been implemented in Herwig++. Tuning its two free parameters we find a good description of CDF underlying event data.
Bähr, Manuel   +2 more
core   +2 more sources

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