Results 111 to 120 of about 3,078,462 (291)
Advanced Science, EarlyView.Hippocampal CA2 perineuronal nets ensheathing excitatory pyramidal neurons are selectively vulnerable to repeated neonatal sevoflurane exposure. Epigenetic upregulation of MMP9 via reduced H3K27me3 disrupts PNN integrity, impairs BDNF–TrkB signaling, and causes synaptic protein loss and dendritic spine deficits, leading to persistent social and spatial
Lirong Liang +11 more
wiley +1 more source
Self‐Responsive Plastron Maintenance on a Superhydrophobic Mesh via Locally Integrated Electrolysis
Advanced Science, EarlyView.This work presents a self‐switchable SHM‐E surface that enables rapid, autonomous plastron self‐repair and long‐term stability. Plastron loss triggers circuit closure and localized electrolysis, while capillary spreading rapidly restores a continuous plastron and self‐terminates the current.
Jiaming Wang, Zhen Zhang, Yuhong Liu
wiley +1 more source
Hangkong gongcheng jinzhanAs the high accuracy CFD method is not suitable for the real-time rapid computation of cluster unmanned aerial vehicle（UAV）, a rapid calculation method of equivalent trailing vortex drag reduction is proposed for the rapid optimization of flight ...
LI Yunluo +5 more
doaj +1 more source
Influence of air rifle pellet geometry on aerodynamic drag
Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology, 2019 Air rifles and air pistols find widespread use in formal and recreational sports events. Despite their widespread use in sport, they have rarely been studied scientifically. The influence of air rifle pellet geometry on aerodynamic drag was investigated experimentally and theoretically at Mach number of 0.58 (approximately 200 m/s) and Reynolds number
openaire +2 more sources
Semi‐Artificial Photosynthesis Enables Light‐Driven Biomanufacturing in Non‐Photosynthetic Bacteria
Advanced Science, EarlyView.A non‐invasive strategy exploits endogenous H2S metabolism in B. subtilis to drive in situ CdS biomineralization, enabling tight bio‐abiotic contact without genetic modification. Light harvested by the biomineralized nanoparticles powers NADPH regeneration, elevating 2’‐fucosyllactose and surfactin titres two‐ to three‐fold.
Jie Zheng +8 more
wiley +1 more source
, 2016 Ensino Fundamental Final::Ciências NaturaisThis activity proposes to make a drag racer, powered by a mousetrap, which stores then releases ...
Science Museum
core +1 more source
Air drag controls the runout of small laboratory landslides
Physical Review E7 pages, 5 ...
Cerbus, Rory +3 more
openaire +5 more sources
Habitat‐Specific Design Strategies for Untethered Soft Robots
Advanced Science, EarlyView.Habitat shapes the design of untethered soft robots. Across land, water, air, and living tissues, environmental constraints govern viable combinations of compliant structures, actuation mechanisms, and energy delivery. This review connects these constraints with robotic performance and identifies design principles for advancing adaptable, durable, and ...
Siyang Li +3 more
wiley +1 more source
Important air bases and air distances [in the Pacific Area] [cartographic material].
, 1943 [Sheet 1] is labeled 34zBH.O. Misc. 11,13034yB; Insets on "Pacific Area" sheet: Western Aleutian Islands -- Marshall and Gilbert Islands -- Bismarck Archipelago and Solomon Islands.; Also available online http://nla.gov.au/nla.map-vn4839334; National ...
United States. Air Force.
core
Advanced Science, EarlyView.Engineered heart tissues (EHTs) derived from human iPSCs replicate mechanisms of ventricular tachycardia at the tissue level. Acquired Long‐QT conditions cause early afterdepolarizations, wavebreak, and transient rotors; in contrast, focal cryoinjury forms a stable substrate that supports ongoing reentry.
Matthew Fiedler +4 more
wiley +1 more source