Results 51 to 60 of about 1,436,875 (297)
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
Dynamics of following and leading: association of movement synchrony and depression severity
Frontiers in PsychiatryObjectiveDepression negatively affects interpersonal functioning and influences nonverbal behavior. Interpersonal theories of depression suggest that depressed individuals engage in behaviors that initially provoke others’ support and reassurance, but ...
Simone Jennissen +10 more
doaj +1 more source
Hamiltonian Theory of Adiabatic Motion of Relativistic Charged Particles
, 2007 A general Hamiltonian theory for the adiabatic motion of relativistic charged particles confined by slowly-varying background electromagnetic fields is presented based on a unified Lie-transform perturbation analysis in extended phase space (which ...
Alain J. Brizard +4 more
core +1 more source
Analytic estimates and topological properties of the weak stability boundary [PDF]
, 2012 The weak stability boundary (WSB) is the transition region of the phase space where the change from gravitational escape to ballistic capture occurs.
D. Romagnoli +14 more
core +1 more source
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source
Dynamics of a dry-rebounding drop: observations, simulations, and modeling
Open Physics, 2018 Dynamics of a dry-rebounding drop was studied experimentally, numerically, and theoretically. Experimental results were reproduced by our computational fluid dynamics simulations, from which time series of kinetic energy, potential energy, and surface ...
Nishimura Akio +4 more
doaj +1 more source
Frontiers in Computational Neuroscience, 2014 Knowing the depth structure of the environment is crucial for moving animals in many behavioral contexts, such as collision avoidance, targeting objects, or spatial navigation. An important source of depth information is motion parallax.
Alexander eSchwegmann +2 more
doaj +1 more source
Escape dynamics and fractal basin boundaries in Seyfert galaxies
, 2015 The escape dynamics in a simple analytical gravitational model which describes the motion of stars in a Seyfert galaxy is investigated in detail. We conduct a thorough numerical analysis distinguishing between regular and chaotic orbits as well as ...
Zotos, Euaggelos E.
core +1 more source
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source
Sustainable Energy Harvesting Mechanism for an Unmanned Underwater Vehicle [PDF]
EPJ Web of ConferencesIncreased demand for clean energy solutions along the coast led to this research work, which will attempt to design a small wave energy conversion system to produce electricity from ocean surface motion. Literature on wave behavior, marine energy systems,
Sebastian Luke Sam +3 more
doaj +1 more source