Results 31 to 40 of about 111,541 (269)

Vortex Knots [PDF]

open access: yes, 1998
In this paper we present new results concerning the evolution and stability of vortex knots in the context of the Euler equations. For the first time, since Lord Kelvin’s original conjecture of 1875, we have direct numerical evidence of stability of vortex filaments in the shape of torus knots. The results are based on the analytical solutions of Ricca
Barenghi, CF, Ricca, R, Samuels, DC
openaire   +2 more sources

Repeatability and reproducibility of Population Viability Analysis (PVA) and the implications for threatened species management

open access: yesFrontiers in Ecology and Evolution, 2016
Conservation triage focuses on prioritizing species, populations or habitats based on urgency, biodiversity benefits, recovery potential as well as cost.
Clare Morrison   +2 more
doaj   +1 more source

Global MHD Simulation of the Weak Southward IMF Condition for Different Time Resolutions

open access: yesFrontiers in Astronomy and Space Sciences, 2021
We performed high-resolution three-dimensional global MHD simulations to determine the impact of weak southward interplanetary magnetic field (IMF) (Bz = −2 nT) and slow solar wind to the Earth’s magnetosphere and ionosphere.
Kyung Sun Park, Kyung Sun Park
doaj   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Detecting androgen receptor (AR), AR variant 7 (AR-V7), prostate-specific membrane antigen (PSMA), and prostate-specific antigen (PSA) gene expression in CTCs and plasma exosome-derived cfRNA in patients with metastatic castration-resistant prostate cancer (mCRPC) by integrating the VTX-1 CTC isolation system with the QIAGEN AdnaTest

open access: yesBMC Cancer
Background Therapies for metastatic castration-resistant prostate cancer (mCRPC) include targeting the androgen receptor (AR) with androgen receptor inhibitors (ARIs) and prostate-specific membrane antigen (PSMA).
Haiyan E. Liu   +18 more
doaj   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

Effect of 3-Dimensional Airfoil Shape on Unsteady Fluid Forces in Pitching Motion

open access: yesJournal of Fluid Science and Technology, 2010
A quasi-steady-state approach towards predicting the fluid forces acting on a hand under unsteady conditions yielded errors. The actual motion of a hand in swimming is obviously unsteady, and time-dependent fluid forces must be considered. The purpose of
Hiroaki HASEGAWA   +2 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Serious game for cognitive assessment. Validation of a psychometric embedded test

open access: yesInternational Journal of Serious Games
The evaluation of performance in serious video games is crucial when it comes to providing empirical evidence of the effectiveness of this type of educational tools.
Jorge Quimbaya   +2 more
doaj   +1 more source

Transitional Characteristics of Phase Shift in Lock-in Phenomena of an Oscillating Cylinder

open access: yesJournal of Fluid Science and Technology, 2009
In this study, characteristics of phase lag between displacement of forcibly oscillating test body and velocity fluctuation caused by vortex formation behind the test body were investigated.
Hiroyuki HANIU   +4 more
doaj   +1 more source

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