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Formulating Single Phasic Silicorhenanite (α- and β-NaCa(PO)SiO) Bioactive Glass Materials Competing with Commercial Crystalline Hydroxyapatite Bone Mineral for Biomedical Applications.
ACS Biomater Sci Eng
January 2025
National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy campus, Chennai, Tamilnadu 600025, India.
Hydroxyapatite (HAP) is a well-known medically renowned bioactive material known for its excellent biocompatibility and mechanical stability, but it lacks fast bioactivity. The restricted release of ions from hydroxyapatite encourages the search for a faster bioactive material that could replicate other properties of HAP. A new sol-gel-mediated potentially bioactive glass material that could mimic the structure of HAP but can surpass the performance of HAP bioactively has been formulated in this study.
View Article and Find Full Text PDFAcetylcholine modulates the network physiology of the hippocampus, a crucial brain structure that supports cognition and memory formation in mammals . In this and adjacent regions, synchronized neuronal activity within theta-band oscillations (4-10Hz) is correlated with attentive processing that leads to successful memory encoding . Acetylcholine facilitates the hippocampus entering a theta oscillatory regime and modulates the temporal organization of activity within theta oscillations .
View Article and Find Full Text PDFHuman Auditory-Motor Networks Show Frequency-Specific Phase-Based Coupling in Resting-State MEG.
Hum Brain Mapp
January 2025
Montreal Neurological Institute, McGill University, Montréal, Quebec, Canada.
Perception and production of music and speech rely on auditory-motor coupling, a mechanism which has been linked to temporally precise oscillatory coupling between auditory and motor regions of the human brain, particularly in the beta frequency band. Recently, brain imaging studies using magnetoencephalography (MEG) have also shown that accurate auditory temporal predictions specifically depend on phase coherence between auditory and motor cortical regions. However, it is not yet clear whether this tight oscillatory phase coupling is an intrinsic feature of the auditory-motor loop, or whether it is only elicited by task demands.
View Article and Find Full Text PDFNetwork structure of phasic and tonic irritability in adults: A Bayesian Gaussian graphical model.
J Affect Disord
December 2024
Department of Psychological & Brain Sciences, Boston University, Boston, MA, USA. Electronic address:
Background: Tonic (i.e., irritable mood) and phasic (i.
View Article and Find Full Text PDFHierarchical Trait-State Model for Decoding Dyadic Social Interactions.
ArXiv
November 2024
Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91106.
Traits are patterns of brain signals and behaviors that are stable over time but differ across individuals, whereas states are phasic patterns that vary over time, are influenced by the environment, yet oscillate around the traits. The quality of a social interaction depends on the traits and states of the interacting agents. However, it remains unclear how to decipher both traits and states from the same set of brain signals.
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