Results 31 to 40 of about 7,139,942 (297)

The atmospheric settling of commercially sold microplastics [PDF]

open access: yesAtmospheric Chemistry and Physics
The atmosphere plays a major role in the dispersion of microplastics in the environment. The atmospheric transport of large microplastics is strongly influenced by their settling behavior, which depends on their physical properties, including size and ...
A. S. W. Reininger   +4 more
doaj   +1 more source

An envelope method for analysing sequential pattern formation [PDF]

open access: yes, 2000
We examine sequential spatial pattern formation in a tissue interaction model for skin organ morphogenesis. Pattern formation occurs as a front sweeps across the domain leaving in its wake a steady state spatial pattern.
Cruywagen, GC   +6 more
core   +1 more source

Identification of Dynamical Models of Spatio-temporal Pattern Formation with Applications to Slime Mould [PDF]

open access: yes, 2011
Spatio-temporal systems are non-linear dynamical systems which include both time and space information. Many natural phenomena and processes can be described by spatio-temporal models, such as pattern formation, chemical reactions and physical dynamics ...
Wang, Shu
core   +6 more sources

Agent-based models in cellular systems

open access: yesFrontiers in Physics, 2023
This mini-review discusses agent-based models as modeling techniques for studying pattern formation of multi-cellular systems in biology. We introduce and compare different agent-based model frameworks with respect to spatial representation ...
Jonas Pleyer, Christian Fleck
doaj   +1 more source

Pattern formation in the geosciences [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2013
Pattern formation is a natural property of nonlinear and non-equilibrium dynamical systems. Geophysical examples of such systems span practically all observable length scales, from rhythmic banding of chemical species within a single mineral crystal, to the morphology of cusps and spits along hundreds of kilometres of coastlines.
openaire   +4 more sources

Transitory expression of Dlx5 and Dlx6 in maxillary arch epithelial precursors is essential for upper jaw morphogenesis [v3; ref status: indexed, http://f1000r.es/4dd]

open access: yesF1000Research, 2014
Asymmetric, articulated jaws are characteristic of most vertebrate species; they derive from the first pharyngeal arch (PA1) which generates both maxillary and mandibular components.
Yorick Gitton   +2 more
doaj   +1 more source

How enhancers regulate wavelike gene expression patterns

open access: yeseLife, 2023
A key problem in development is to understand how genes turn on or off at the right place and right time during embryogenesis. Such decisions are made by non-coding sequences called ‘enhancers.’ Much of our models of how enhancers work rely on the ...
Christine Mau   +8 more
doaj   +1 more source

Recent advances in understanding vertebrate segmentation [version 1; referees: 3 approved]

open access: yesF1000Research, 2018
Segmentation is the partitioning of the body axis into a series of repeating units or segments. This widespread body plan is found in annelids, arthropods, and chordates, showing it to be a successful developmental strategy for growing and generating ...
Tomás Pais-de-Azevedo   +3 more
doaj   +1 more source

Laplacian Pattern Formation [PDF]

open access: yesEurophysics News, 1988
The formation of snowflakes, viscous fingers and electrodeposits is governed by analogous equations : these structures are all Laplacian patterns. In this paper we review model experiments and computer simulations which are widely used to study diverse morphologies resulting from the motion of unstable interfaces.
Vicsek, Tamás, Kertész, János
openaire   +2 more sources

Nonlinear patterns shaping the domain on which they live

open access: yesNew Journal of Physics, 2020
Nonlinear stripe patterns in two spatial dimensions break the rotational symmetry and generically show a preferred orientation near domain boundaries, as described by the famous Newell–Whitehead–Segel (NWS) equation.
Mirko Ruppert   +2 more
doaj   +1 more source

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