Results 41 to 50 of about 260,009 (313)

Microdevice-based mechanical compression on living cells

open access: yesiScience, 2022
Summary: Compressive stress enables the investigation of a range of cellular processes in which forces play an important role, such as cell growth, differentiation, migration, and invasion.
Sevgi Onal, Maan M. Alkaisi, Volker Nock
doaj  

Chirality in Optical Trapping and Optical Binding

open access: yesPhotonics, 2015
Optical trapping is a well-established technique that is increasingly used on biological substances and nanostructures. Chirality, the property of objects that differ from their mirror image, is also of significance in such fields, and a subject of much ...
David S. Bradshaw   +3 more
doaj   +1 more source

Cereal Stem Stress: In Situ Biomechanical Characterization of Stem Elasticity

open access: yesApplied Sciences, 2020
Stem lodging is the bending or breakage of stems in the wind that result in negative economic impacts to producers and processors of small grain crops.
D. Jo Heuschele   +4 more
doaj   +1 more source

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Non-Equilibrium Thermodynamic Approach to Ca2+-Fluxes in Cancer

open access: yesApplied Sciences, 2020
Living systems waste heat in their environment. This is the measurable effect of the irreversibility of the biophysical and biochemical processes fundamental to their life.
Umberto Lucia, Giulia Grisolia
doaj   +1 more source

RADON DENSITY PROFILES IN ALVEOLAR PORES: AN INTEGRAL EQUATION FORMALISM APPLICATION

open access: yesAnales (Asociación Física Argentina), 2023
In this work, we obtained density profiles of Radon particles near the alveolar wall surface by the development of a theoretical model that describes the interaction between such particles and the alveolar wall cells.
J. C. Corona-Oran   +2 more
doaj   +1 more source

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

open access: yesFEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro   +2 more
wiley   +1 more source

Neural tube patterning: From a minimal model for rostrocaudal patterning toward an integrated 3D model

open access: yesiScience, 2021
Summary: Rostrocaudal patterning of the neural tube is a defining event in vertebrate brain development. This process is driven by morphogen gradients which specify the fate of neural progenitor cells, leading to the partitioning of the tube.
Max Brambach   +6 more
doaj  

Biophysical Submesoscale Processes in the Wake of Hurricane Ivan: Simulations and Satellite Observations

open access: yesJournal of Marine Science and Engineering, 2019
Tropical cyclone induced phytoplankton productivity is examined using a tropical cyclone version of the Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS®).
Travis A. Smith   +3 more
doaj   +1 more source

Molecular Dynamics Simulations Reveal Canonical Conformations in Different pMHC/TCR Interactions

open access: yesCells, 2020
The major defense system against microbial pathogens in vertebrates is the adaptive immune response and represents an effective mechanism in cancer surveillance. T cells represent an essential component of this complex system.
Josephine Alba   +4 more
doaj   +1 more source

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