Results 101 to 110 of about 660 (256)

Análisis a través de microscopía electrónica de barrido de dos dientes con tratamiento endodóncico sometidos a altas temperaturas: Estudio piloto

open access: yesRevista Facultad de Odontología Universidad de Antioquia
INTRODUCCIÓN: el objetivo fue describir los cambios físico-químicos que ocurren en los tejidos y materiales dentales empleados en un tratamiento endodóncico convencional, al ser sometidos a altas temperaturas, a través de microscopía electrónica de ...
Freddy Moreno Gómez   +1 more
doaj  

Retrospective Grid Cells in the Medial Entorhinal Cortex Encode Past Paths During Spatial Navigation

open access: yesAdvanced Science, EarlyView.
Retrospective grid cells are identified in the medial entorhinal cortex, with spatial firing patterns that become most grid‐like when activity is projected onto recently traversed locations. Their coding loses spatial precision in darkness and is disrupted during assisted movement, indicating that entorhinal representations incorporate recent path ...
Ruojin Liu   +10 more
wiley   +1 more source

La salud oral Durante la Época Colonial en Tlatelolco; Un Estudio Paleopatológico de un Sector Novohipano en México.

open access: yesActa Odontológica Colombiana, 2011
Antecedentes: La ruptura histórica que se origino a raíz del encuentro entre América y el viejo mundo, dio pie a nuevos patrones alimenticios que repercutieron en la salud bucal de cada uno de los habitantes de Tlatelolco.
Judith Lizbeth Ruíz González   +1 more
doaj  

Bioenergetic Materials for Tissue Regeneration: Modulating Metabolism to Promote Cellular Anabolism

open access: yesAdvanced Science, EarlyView.
Bioenergetic materials (BEMs) modulate cellular metabolism to promote tissue regeneration. Their principal mechanisms of action include metabolic substrate supplementation, metabolic enzyme modulation, organelle transfer, electrical current regulation, redox homeostasis modulation, and oxygen tension modulation.
Yuchen He   +7 more
wiley   +1 more source

Longitudinal Awake Mouse Brain Imaging Using Functional Ultrasound and Functional Ultrasound Localization Microscopy

open access: yesAdvanced Science, EarlyView.
Awake longitudinal multimodal ultrasound imaging integrates functional ultrasound (fUS), ultrasound localization microscopy (ULM), and functional ULM (fULM) to characterize cerebrovascular function, microvascular architecture, and flow dynamics within the same animals over time.
Zhe Huang   +9 more
wiley   +1 more source

[Histological characteristics of bovine dentin using Masson's Trichrome staining]. [PDF]

open access: yesRev Cient Odontol (Lima), 2023
Lezcano MR, Enz N, Affur MC, Gili MA.
europepmc   +1 more source

Neonatal Sevoflurane Exposure Induces Long‐Term Cognitive Impairment via Epigenetically Mediated MMP9 Activation and Perineuronal Net Disruption in the Hippocampal CA2

open access: yesAdvanced 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

Sea Cucumber‐Inspired Double‐Network Biopolymer Hydrogels for Programmable Soft Machines

open access: yesAdvanced Science, EarlyView.
Inspired by the mutable dermis of sea cucumbers, the collagen‐alginate double‐network elastomeric (CoDE) hydrogel achieves programmable, recoverable, and functional mechanical behavior. The CoDE hydrogel mimics the mutable stiffness of the sea cucumber dermis through a densified collagen cryogel scaffold that is secondarily reinforced by a dissipative,
Luo Yan   +3 more
wiley   +1 more source

Compressive strength of endodontically treated mandibularpremolars rehabilitated with three techniques. [PDF]

open access: yesActa Odontol Latinoam
Cebada P   +9 more
europepmc   +1 more source

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