Results 21 to 30 of about 742,475 (269)
Los mapas auto-organizados o redes de Kohonen (SOM por sus siglas en inglés, self-organizing map) fueron introducidos por el profesor finlandés Teuvo Kalevi Kohonen en los años 80. Un mapa auto-organizado es una herramienta que analiza datos en muchas dimensiones con relaciones complejas entre ellos y los reduce o representa en, usualmente, una, dos o ...
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Current and future challenges in interdisciplinary Ph.D. education as perceived by students
Göttingen is home to the Third Infinity conference, a biennial event organized by Ph.D. candidates that aims, beyond discussing complex systems physics, at providing a platform to discuss themes central to doctoral life and education.
Aina Gallemí-Pérez +1 more
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Sustainable and convenient: Bi-modal public transit systems outperforming the private car
Mobility is an indispensable part of modern human societies, but the dominance of motorized individual traffic (MIV, i.e., the private car) leads to a prohibitive waste of energy as well as other resources.
Puneet Sharma +4 more
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Contact numbers in packings of frictional cylinders [PDF]
The mechanical stability of a granular system depends on the average number of contacts Z between its particles. For most particle shapes, predicting Z as a function of the average volume fraction ϕ is complicated by the spatial correlations between ...
Schröter Matthias +2 more
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Controlling molecular transport in minimal emulsions
Emulsion droplets have many biotechnological applications, such as parallelized single cell analysis. Here, Gruner et al. introduce the concept of the minimal emulsions in a microfluidic device that allows full control of molecular transport between ...
Philipp Gruner +6 more
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Information-Geometric Optimization with Natural Selection
Evolutionary algorithms, inspired by natural evolution, aim to optimize difficult objective functions without computing derivatives. Here we detail the relationship between classical population genetics of quantitative traits and evolutionary ...
Jakub Otwinowski +2 more
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Schneefernerhaus as a mountain research station for clouds and turbulence [PDF]
Cloud measurements are usually carried out with airborne campaigns, which are expensive and are limited by temporal duration and weather conditions. Ground-based measurements at high-altitude research stations therefore play a complementary role in cloud
S. Risius +6 more
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Interplay Between Risk Perception, Behavior, and COVID-19 Spread
Pharmaceutical and non-pharmaceutical interventions (NPIs) have been crucial for controlling COVID-19. They are complemented by voluntary health-protective behavior, building a complex interplay between risk perception, behavior, and disease spread.
Philipp Dönges +13 more
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Understanding and Self-Organization [PDF]
How do we manage to understand a completely novel state of affairs, such as the sudden effects of an unexpected earthquake, or the arrival of a total stranger instead of the sister we were waiting for? In each case, for a moment we might be stunned, but we are able quite quickly to fit these events into our overall framework for understanding the world.
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Persistent accelerations disentangle Lagrangian turbulence
Particles in turbulence, as encountered in the atmosphere or the oceans, experience strongly varying local flow conditions over time. Bentkamp et al. show that this statistical complexity can be broken down into simpler parts, allowing for insights into ...
Lukas Bentkamp +2 more
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