Results 51 to 60 of about 22,325 (306)

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Phase Correcting Convoluted FSS Reflectors to Increase Directivity in Fabry-Perot Cavity Antennas [PDF]

open access: yes
This paper investigates a method to improve the aperture phase distribution of a Fabry–Perot cavity antenna (FPCA), using convoluted frequency selective surfaces (FSS) to improve uniformity of electromagnetic (EM) wave phase inside the cavity, thus ...
O’Keefe, SG   +3 more
core   +1 more source

Directivity

open access: yes, 2011
Ensino Médio::GeografiaThe animation shows the directivity of an earthquake, caused due to the focus of seismic waves energy along the fault, in the direction of rupture. Observing the seismic stations (known as Seismic Station #1 and Seismic Station #2)
U.S. Geological Survey
core   +3 more sources

Interference Suppression in 3-D Monopulse Radar Using External Antenna Elements

open access: yesIEEE Access
This article presents a method for suppressing incoherent narrowband interference in a 3D surveillance radar with a multi-beam monopulse antenna by adapting the antenna pattern using external suppression antenna elements.
Pavel Bezousek, Simeon Karamazov
doaj   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

open access: yesFEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj   +3 more
wiley   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Directional properties of the loudspeaker systems with analog and digital crossover networks

open access: yesArchives of Acoustics, 2008
Directional properties of loudspeaker systems with analog and digital crossover networks have been investigated. The study has been performed for a three-way loudspeaker system subjectively classified as of average quality.
Marek NIEWIAROWICZ, Henryk ŁOPACZ
doaj  

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

Directed triangles in directed graphs

open access: yesDiscrete Mathematics, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

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