Results 41 to 50 of about 88,208 (278)
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
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
Studying Binary Formation under Dynamical Friction Using Hill’s Problem
The Astrophysical JournalUsing the equations of motion from Hill’s problem, with added accelerations for different forms of dynamical friction, we provide the (to-date) broadest scale-free study of friction-driven binary formation in gaseous disks and stellar clusters.
Mark Dodici, Scott Tremaine
doaj +1 more source
Dynamical Friction and Resonance Trapping in Planetary Systems [PDF]
, 1998 A restricted planar circular three-body system, consisting of the Sun and two planets, is studied as a simple model for a planetary system. The mass of the inner planet is considered to be larger and the system is assumed to be moving in a uniform ...
Gutzwiller, N. Haghighipour
core +3 more sources
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
Dynamical Friction by Coupled Dark Energy
The Astrophysical JournalIn this paper, we examine dynamical friction at galactic scales within the framework of coupled dark energy (CDE). This model posits dark energy as coupled quintessence, which maintains a minimal coupling to gravity but interacts nonminimally with both ...
Nasrin Nari, Mahmood Roshan
doaj +1 more source
REVIEW One-Dimensional Dynamical Modeling of Earthquakes: A Review
Terrestrial, Atmospheric and Oceanic Sciences, 2008 Studies of the power-law relations of seismicity and earthquake source parameters based on the one-dimensional (1-D) Burridge-Knopoff¡¦s (BK) dynamical lattice model, especially those studies conducted by Taiwan¡¦s scientists, are reviewed in this ...
Jeen-Hwa Wang
doaj +1 more source
Enhancing recursive feature extraction in nonlinear time-series via fuzzy membership functions [PDF]
AIP AdvancesTraditional recurrence analysis methods relying on preset thresholds inevitably introduce subjectivity into analytical results. To enhance the objectivity and robustness of recurrence analysis outcomes, this study proposes a novel recursive feature ...
Guodong Sun, Bobo Jian, Yishui Liu
doaj +1 more source
Self-consistent Spin, Tidal, and Dynamical Equations of Motion in the REBOUNDx Framework
The Astrophysical Journal, 2023 We introduce self-consistent spin, tidal, and dynamical equations of motion into REBOUNDx , a library of additional effects for the popular N -body integrator REBOUND .
Tiger Lu +6 more
doaj +1 more source
Relativistic Dynamical Friction in the Weak Scattering Limit
, 1994 A test mass, $M$, moving through an ambient medium of light particles with lower average kinetic energy than itself suffers a deceleration caused by its scattering of the light particles. The phenomenon is usually referred to as dynamical friction.
Syer, D.
core +1 more source