Results 21 to 30 of about 18,800 (203)

Spatiotemporal Coordination of Rac1 and Cdc42 at the Whole Cell Level during Cell Ruffling

open access: yesCells, 2023
Rho-GTPases are central regulators within a complex signaling network that controls cytoskeletal organization and cell movement. The network includes multiple GTPases, such as the most studied Rac1, Cdc42, and RhoA, along with their numerous effectors ...
Siarhei Hladyshau   +4 more
doaj   +1 more source

Validation of Observed Bedload Transport Pathways Using Morphodynamic Modeling [PDF]

open access: yes, 2016
Phenomena related to braiding, including local scour and fill, channel bar development, migration and avulsion, make numerical morphodynamic modeling of braided rivers challenging.
Ashmore P.   +12 more
core   +1 more source

Nearshore oblique sand bars [PDF]

open access: yes, 2003
The coupling between hydrodynamics and the evolving topography in the surf zone has been theoretically examined for oblique wave incidence. It is shown that positive feedback can lead to the initial growth of several types of rhythmic systems of sand ...
Falqués Serra, Albert   +2 more
core   +1 more source

Paleogeographic numerical modeling of marginal seas for the Holocene – an exemplary study of the Baltic Sea [PDF]

open access: yesEarth System Dynamics
The sustainable management of marginal seas is based on a thorough understanding of their evolutionary trends in the past. The paleogeographic evolution of marginal seas is controlled not only by global and regional driving forces (eustatic sea-level ...
J. Miluch   +6 more
doaj   +1 more source

Formation of offshore tidal sandbanks triggered by a gasmined bed subsidence [PDF]

open access: yes, 2002
Offshore gasmining is an example of a human intervention with a morphological impact. On land, it is usually attended with a dish-like bed depression.
Hulscher, Suzanne J.M.H.   +1 more
core   +2 more sources

The Impact of Inherited Morphology on Sandbar Migration During Mild Wave Seasons

open access: yesGeophysical Research Letters, 2023
Sandbars are ubiquitous morphologic features found in the nearshore environment throughout the world, yet predictive capabilities of their evolution remain limited.
Dylan Anderson   +5 more
doaj   +1 more source

The DynaDeep observatory – a unique approach to study high-energy subterranean estuaries

open access: yesFrontiers in Marine Science, 2023
Subterranean estuaries are connective zones between inland aquifers and the open sea where terrestrial freshwater and circulating seawater mix and undergo major biogeochemical changes.
Gudrun Massmann   +41 more
doaj   +1 more source

Variabilidad morfométrica en crustáceos de playas arenosas de la Isla Grande de Chiloé, sur de Chile [PDF]

open access: yes, 2013
Indexación: Web of Science; Scielo.The macroinfauna of exposed sandy beaches along the Chilean coast is dominated by crustaceans, which show an across-shore zonation; the talitrid amphipod Orchestoidea tuberculata as the dominant taxon in the upper ...
Contreras, Heraldo   +3 more
core   +1 more source

On the instability of a nonlocal conservation law [PDF]

open access: yes, 2011
We are interested in a nonlocal conservation law which describes the morphodynamics of sand dunes sheared by a fluid flow, recently proposed by Andrew C. Fowler. We prove that constant solutions of Fowler's equation are non-linearly unstable.
Bouharguane, Afaf
core   +1 more source

Quasi-two-layer morphodynamic model for bedload-dominated problems: bed slope-induced morphological diffusion [PDF]

open access: yesRoyal Society Open Science, 2018
We derive a two-layer depth-averaged model of sediment transport and morphological evolution for application to bedload-dominated problems. The near-bed transport region is represented by the lower (bedload) layer which has an arbitrarily constant ...
Sergio Maldonado   +1 more
doaj   +1 more source

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