Results 81 to 90 of about 10,883 (294)

Fully Wireless and Flexible Valves for Multiplexed and Prolonged Intravesical Liquid Release

open access: yesAdvanced Healthcare Materials, EarlyView.
A fundamental mechanism for the simultaneous control of multiple magnetic valves is reported in a miniature soft robotic patch for intravesical drug delivery, enabling fully wireless and programmable liquid release. Integrated with a bioadhesive interface and induction‐coupling‐based liquid volume sensing, the soft robotic patch is promising to enable ...
Boyang Xiao   +5 more
wiley   +1 more source

Prosomeric organization of the hypothalamus in an elasmobranch, the catshark Scyliorhinus canicula.

open access: yesFrontiers in Neuroanatomy, 2015
The hypothalamus has been a central topic in neuroanatomy because of its important physiological functions, but its mature organization remains elusive.
Gabriel-Nicolás eSantos-Durán   +7 more
doaj   +1 more source

Sperm Lipid Composition in Early Diverged Fish Species: Internal vs. External Mode of Fertilization

open access: yesBiomolecules, 2020
The lipid composition of sperm membranes is crucial for fertilization and differs among species. As the evolution of internal fertilization modes in fishes is not understood, a comparative study of the sperm lipid composition in freshwater ...
Kathrin M. Engel   +7 more
doaj   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

open access: yesAdvanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine   +5 more
wiley   +1 more source

Notas sobre el esqueleto de los Peces Neoceratodus Fosteri y Protopterus Annectens Notas sobre el esqueleto de los Peces Neoceratodus Fosteri y Protopterus Annectens

open access: yesCaldasia, 1977
We present here a new description and drawings of the axial skeleton of Neoceratodus fosteri and Protopterus annectens. We discuss the differences between modern and fossil forms of lung fishes in reference to the formation of vertebrae in fossil forms ...
Galvis-Vergara German
doaj  

Origin and diversification of the plasminogen activation system among chordates

open access: yesBMC Evolutionary Biology, 2019
Background The plasminogen (PLG) activation system is composed by a series of serine proteases, inhibitors and several binding proteins, which together control the temporal and spatial generation of the active serine protease plasmin. As this proteolytic
Andrés Chana-Muñoz   +8 more
doaj   +1 more source

Improved Environmental DNA Reference Library Detects Overlooked Marine Fishes in New Jersey, United States

open access: yesFrontiers in Marine Science, 2020
An accurate, comprehensive reference sequence library maximizes information gained from environmental DNA (eDNA) metabarcoding of marine fishes. Here, we used a regional checklist and early results from an ongoing eDNA time series to target mid-Atlantic ...
Mark Y. Stoeckle   +2 more
doaj   +1 more source

Synchronizing the Osteochondral Regeneration Process through Spatial Patterning of Stable and Hypertrophic Cartilage Organoids

open access: yesAdvanced Materials, EarlyView.
Zonated osteochondral assembloid implants are engineered through scaffold‐free spatial assembly of induced pluripotent stem cell (iPSC)‐derived chondrocyte organoids and periosteum‐derived osteogenic organoids. Implanted into full‐thickness rat osteochondral defects, they promote hyaline‐like cartilage repair, support subchondral bone formation with ...
Liuqi Peng   +3 more
wiley   +1 more source

Diving behaviour of the critically endangered tope shark Galeorhinus galeus in the Natural Reserve of Bahia San Blas, northern Patagonia [PDF]

open access: yes, 2014
Background:Tope sharks (Galeorhinus galeus) aggregate in large numbers during spring and summer in closedgulfs and bays in northern Patagonia; these locations are considered the main nursery areas for the species.However, little is known about the ...
Cuevas, Juan Martín   +2 more
core   +2 more sources

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

open access: yesAdvanced Materials, EarlyView.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang   +7 more
wiley   +1 more source

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