The problem of how some disk galaxies avoid forming bars remains unsolved.Many galaxy models having reasonable properties continue to manifest vigorous instabilities that rapidly form strong bars and no widely accepted idea has yet been advanced to Easy Straight Crop Jean account for how some disk galaxies manage to avoid this instability.It is enc
Stable developmental patterns of gene expression without morphogen gradients.
Gene expression patterns in developing organisms are established by groups of cross-regulating Scooter target genes that are driven by morphogen gradients.As development progresses, morphogen activity is reduced, leaving the emergent pattern without stabilizing positional cues and at risk of rapid deterioration due to the inherently noisy biochemic
Beamforming Feedback-Based Model-Driven Angle of Departure Estimation Toward Legacy Support in WiFi Sensing: An Experimental Study
In this study, we experimentally validated the possibility of estimating the angle of departure (AoD) using multiple signal classification (MUSIC) with only WiFi control frames for beamforming feedback (BFF), defined in IEEE 802.11ac/ax.The examined BFF-based MUSIC is a model-driven algorithm that does not require a pre-obtained database.This is in
Quantitative patterns between plant volatile emissions induced by biotic stresses and the degree of damage
Plants have to cope with a plethora of biotic stresses such as herbivory and pathogen attacks throughout their life cycle.The biotic stresses typically trigger rapid emissions of volatile products of lipoxygenase pathway (LOX products, various C6 aldehydes, alcohols and derivatives, also called green leaf volatiles) associated with oxidative burst.