Results 81 to 90 of about 930,593 (248)

Early Disruption of Cortical Sleep-Related Oscillations in a Mouse Model of Dementia With Lewy Bodies (DLB) Expressing Human Mutant (A30P) Alpha-Synuclein

Frontiers in Neuroscience, 2020
Changes in sleep behavior and sleep-related cortical activity have been reported in conditions associated with abnormal alpha-synuclein (α-syn) expression, in particular Parkinson’s disease (PD) and dementia with Lewy bodies (DLB).
Myrto Stylianou, Boubker Zaaimi, Alan Thomas, John-Paul Taylor, Fiona E. N. LeBeau   +4 more
doaj   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Slow oscillation amplitudes and up-state lengths relate to memory improvement.

PLoS ONE, 2013
There is growing evidence of the active involvement of sleep in memory consolidation. Besides hippocampal sharp wave-ripple complexes and sleep spindles, slow oscillations appear to play a key role in the process of sleep-associated memory consolidation.
Dominik P J Heib, Kerstin Hoedlmoser, Peter Anderer, Josef Zeitlhofer, Georg Gruber, Wolfgang Klimesch, Manuel Schabus   +6 more
doaj   +1 more source

Differing Patterns of Altered Slow-5 Oscillations in Healthy Aging and Ischemic Stroke

Frontiers in Human Neuroscience, 2016
The ‘default-mode’ network (DMN) has been investigated in the presence of various disorders, such as Alzheimer’s disease and Autism spectrum disorders. More recently, this investigation has expanded to include patients with ischemic injury.
Christian eLa, Christian eLa, Pouria eMossahebi, Veena A Nair, Brittany Mei Young, Julie eStamm, Rasmus eBirn, Mary eMeyerand, Vivek ePrabhakaran   +8 more
doaj   +1 more source

Alpha-band rhythms in visual task performance: phase-locking by rhythmic sensory stimulation [PDF]

, 2012
Oscillations are an important aspect of neuronal activity. Interestingly, oscillatory patterns are also observed in behaviour, such as in visual performance measures after the presentation of a brief sensory event in the visual or another modality. These
Gregor Thut, Paterson Gavin, Gavin Paterson, Gross, J., de Graaf Tom A., Thut Gregor, Gross, Joachim, Gross Joachim, Rusch Tessa, Er T. Sack, Graaf, Tom A. de, Rusch, T., Paterson, Gavin, Alexander T Sack, Thut, G., Thut, Gregor, Sack, Alexander T., Paterson, G., Tom A de Graaf, Sack Alexander T., Sack, A.T.; id_orcid, de Graaf, T.A., Sack, A.T., Joachim Gross, Tom A. De Graaf, Tessa Rusch, Rusch, Tessa   +26 more
core   +2 more sources

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

Advanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

Advanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri, Oliver Paull, Ralph Bulanadi, Yasuhiro Sakamoto, Shintaro Yasui, Mikayla Lord, Mahak Chhabra, David Walker, Patrycja Paruch, Shery Chang, Nagarajan Valanoor, Daniel Sando   +11 more
wiley   +1 more source

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

Advanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge, Olivia Harper, Jaejun Lee, Sergio Gonzalez‐Munoz, Vladimir V. Tsukruk   +4 more
wiley   +1 more source

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

Advanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang, Temesgen Tadeyos Zate, Peiren Wang, Soumyajit Mojumder, Elo Overgaard Mogensen, Oriol Gavalda‐Diaz, Zihe Li, Shitong Zhou, Ajeet Kumar, James Roscow, Hamideh Khanbareh, Astri Bjørnetun Haugen, Florian Bouville   +12 more
wiley   +1 more source

Sevoflurane Induces Coherent Slow-Delta Oscillations in Rats

Frontiers in Neural Circuits, 2017
Although general anesthetics are routinely administered to surgical patients to induce loss of consciousness, the mechanisms underlying anesthetic-induced unconsciousness are not fully understood.
Jennifer A. Guidera, Jennifer A. Guidera, Norman E. Taylor, Norman E. Taylor, Norman E. Taylor, Justin T. Lee, Justin T. Lee, Ksenia Y. Vlasov, Ksenia Y. Vlasov, JunZhu Pei, JunZhu Pei, Emily P. Stephen, Emily P. Stephen, J. Patrick Mayo, Emery N. Brown, Emery N. Brown, Emery N. Brown, Emery N. Brown, Emery N. Brown, Ken Solt, Ken Solt, Ken Solt   +21 more
doaj   +1 more source