Results 71 to 80 of about 5,312 (225)

Upper Cretaceous Mollusca from Southern California [PDF]

open access: yes, 1937
One new genus and thirteen new species of Mollusca are described from the Upper Cretaceous fauna of the Santa Ana Mountains, southern California. New generic assignments based upon discovery and study of previously unobserved structural features are ...
Popenoe, Willis Parkison
core  

Sleep Slow Wave‐Bistability and the Connection Between the Sleeping Brain and the Environment—Neurobiological Considerations

open access: yesJournal of Sleep Research, EarlyView.
Bistability is an inherent working mode of NREM sleep. Those bistable patterns ‐ sleep slow waves, K‐complexes, and the cyclic alternating pattern (on a longer, several seconds' time‐scale) ‐ have a double function; they protect sleep and provide an interface between the brain and the environment for information‐transfer during sleep.
Péter Halász   +3 more
wiley   +1 more source

Writing in Britain and Ireland, c. 400 to c. 800 [PDF]

open access: yes, 2012
No abstract ...
Abrams   +1241 more
core   +1 more source

Tone‐Evoked Sleep Electroencephalographic Slow Oscillations as a Function of Peripheral Rhythms: New Insights Into the Brain–Heart Integration

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Recent studies have shown that acoustic stimulation, a common neuromodulation technique, can enhance slow‐wave activity (SWA), which is associated with immune, autonomic nervous system activity and cognitive health benefits. Despite some disagreement, many studies suggest that maximising tone‐evoked SWA depends on the timing of the acoustic ...
Mohamad Forouzanfar   +4 more
wiley   +1 more source

The Effect of Closed‐Loop Auditory Stimulation on Memory Consolidation and Sleep Physiology in an Ecological Setting

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Slow wave sleep plays a crucial role in overnight memory consolidation, with slow oscillations serving as a critical mechanism. Recent studies have identified closed‐loop auditory stimulation as an effective method to enhance slow oscillatory activity during slow wave sleep, thereby facilitating memory consolidation.
Angie Baldassarri   +6 more
wiley   +1 more source

Differential Nap‐To‐Nap Stability of Sleep Spindles, Slow Waves, and their Temporal Coupling: An Exploratory Study

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Slow waves and sleep spindles characterise non‐rapid eye movement (NREM) sleep and support cognitive and plasticity‐related functions. While their stability across nights is well established, less is known about their consistency across daytime naps.
Damiana Bergamo   +3 more
wiley   +1 more source

Refined Division of Sleep Stages in the Mouse Based on Distributed Deep Electrodes and Underlying Infra‐Slow Oscillation

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT The mouse sleep is mostly recorded with only epidural electrodes and divided simply into NREM and REM stages. With the help of distributed intracerebral triplet electrodes, we searched for possible new electrophysiological signatures to characterise more specific sleep substages within the timeframe of seconds to tens of minutes.
Nanxiang Jin   +8 more
wiley   +1 more source

Analysis of the Prehistoric Artifacts from the Pace McDonald Site (41AN51), Anderson County, Texas [PDF]

open access: yes, 2011
The Pace McDonald site (41AN51) is a poorly known prehistoric Caddo mound center on Mound Prairie Creek in Anderson County, Texas, in the upper Neches River Basin. With the permission of one of the landowners, Mr. Johnny Sanford, the Friends of Northeast
Perttula, Timothy K.
core   +1 more source

Producing Goods, Shaping People: The Materiality of Crafting

open access: yes, 2015
The study of craft production has a long and venerable history in archaeological research on ancient societies. In this chapter, I consider the crafting of useful and desired things from a materiality perspective by looking at the interactions between ...
Hendon, Julia A.
core   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

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