Results 51 to 60 of about 4,510 (201)

Multifunctional Role of Pacap-Like Peptides in Molluscs [PDF]

, 2013
The purpose of this review is to highlight the role of pituitary adenylate cyclase-activating polypeptide (PACAP) in a range of physiological and behavioral processes of gastropod molluscs, Helix and Lymnaea.
Kiss, Tibor, Pirger, Zsolt
core   +1 more source

Species‐specific diatom dynamics shape their vertical distribution and export during bloom decline

Limnology and Oceanography, Volume 70, Issue 4, Page 959-976, April 2025.
Abstract The Southern Ocean is a critical region for global biogeochemical cycles, particularly for carbon dioxide uptake and organic carbon export, partly driven by extensive phytoplankton blooms. In naturally iron‐fertilized regions of this otherwise iron‐limited ocean, these blooms are primarily driven by diatoms. Variability in bloom occurrences on
Sarah L. C. Giering, Filipa Carvalho, Morten H. Iversen, Zonghua Liu, Océane Merchiers, C. Mark Moore, Michael Ockwell, Uta Passow, Alex J. Poulton, Elisa Romanelli, Thangavel Thevar, Richard Sanders   +11 more
wiley   +1 more source

Chemotactic Responses of Oscheius myriophilus to Mollusk Mucus

Agronomy
Terrestrial slugs and snails can significantly harm agriculture. Due to environmental concerns associated with chemical molluscicides, biological control methods are increasingly being explored.
Žiga Laznik, Stanislav Trdan, Klara Šavli   +2 more
doaj   +1 more source

Radial Spin Helix in Two-Dimensional Electron Systems with Rashba Spin-Orbit Coupling [PDF]

Physical Review B 82, 125325 (2010), 2010
We suggest a long-lived spin polarization structure, a radial spin helix, and study its relaxation dynamics. For this purpose, starting with a simple and physically clear consideration of spin transport, we derive a system of equations for spin polarization density and find its general solution in the axially symmetric case. It is demonstrated that the
arxiv   +1 more source

FISH, a new tool for in situ preservation of RNA in tissues of deep‐sea mobile fauna

Limnology and Oceanography: Methods, Volume 23, Issue 4, Page 273-292, April 2025.
ABSTRACT Accessing the metabolic functioning of deep‐sea animals in situ remains a technological challenge as the recovery time of samples is incompatible with the short lifespan of such molecules as mRNAs. Tools able to preserve RNA in situ exist, but they are incompatible with the study of mobile fauna.
Valérie Cueff‐Gauchard, Johanne Aubé, Jean‐Romain Lagadec, Laurent Bignon, Jean‐Pierre Lafontaine, Iván Hernández‐Ávila, Nathalie Marsaud, Bruce Shillito, Louis Amand, Erwan G. Roussel, Marie‐Anne Cambon   +10 more
wiley   +1 more source

Glabralysins, potential New β-pore-forming toxin family members from the schistosomiasis vector snail biomphalaria glabrata [PDF]

, 2020
Biomphalaria glabrata is a freshwater Planorbidae snail. In its environment, this mollusk faces numerous microorganisms or pathogens, and has developed sophisticated innate immune mechanisms to survive.
Crickmore, Neil, Duval, David, Galinier, Richard, Gourbal, Benjamin, Lassalle, Damien, Pinaud, Silvain, Tetreau, Guillaume   +6 more
core   +2 more sources

Helical locomotion in granular media [PDF]

Phys. Rev. Lett. 119, 068003 (2017), 2017
The physical mechanisms that bring about the propulsion of a rotating helix in a granular medium are considered. A propulsive motion along the axis of the rotating helix is induced by both symmetry breaking due to the helical shape, and the anisotropic frictional forces undergone by all segments of the helix in the medium.
arxiv   +1 more source

α/β Hydrolases: Toward Unraveling Entangled Classification

Proteins: Structure, Function, and Bioinformatics, Volume 93, Issue 4, Page 855-870, April 2025.
ABSTRACT α/β Hydrolase‐like enzymes form a large and functionally diverse superfamily of proteins. Despite retaining a conserved structural core consisting of an eight‐stranded, central β‐sheet flanked with six α‐helices, they display a modular architecture allowing them to perform a variety of functions, like esterases, lipases, peptidases, epoxidases,
Fatih Ozhelvaci, Kamil Steczkiewicz
wiley   +1 more source

Formation of helical states in wormlike polymer chains [PDF]

, 1998
We propose a potential for wormlike polymer chains which can be used to model the low-temperature conformational structures. We successfully reproduced helix ground states up to 6.5 helical loops, using the multicanonical Monte Carlo simulation method. We demonstrate that the coil-helix transition involves four distinct phases: coil(gaslike), collapsed
arxiv   +1 more source

Sedimentology and palaeoenvironmental analysis of a karstic shallow carbonate lake (Early‐Middle Miocene, Sinj Basin, Croatia)

The Depositional Record, Volume 11, Issue 1, Page 121-146, February 2025.
Miocene karstic Lake Sinj. A prograding carbonate bench on a gently inclined lake margin showing shallowing upwards tendency, and closing of the lake. Abstract In the Early to Middle Miocene, the post‐orogenic intramontane lacustrine Sinj Basin that belonged to the Dinarides Lake System evolved in the area of the External Dinarides.
Alan Vranjković, Elizabeth Gierlowski‐Kordesch, Arjan de Leeuw, Oleg Mandic, Dunja Aljinović, Ivan Dragičević, Mathias Harzhauser, Klaudia Kuiper, Vlatko Brčić, Davor Pavelić   +9 more
wiley   +1 more source