Results 21 to 30 of about 180,518 (204)

Overview of Idiopathic REM Sleep Behavior Disorder [PDF]

open access: yes, 2022
REM sleep behavior disorder (RBD) is a REM sleep-related parasomnia characterized by action of dream content, which is often an aggressive or terrible nightmare.
Tomoyuki, Miyamoto, Miyamoto, Tomoyuki
core   +1 more source

Estimating brown bear population density and abundance using camera traps in the Central Forest State Nature Reserve (west of European Russia)

open access: yesNature Conservation Research: Заповедная наука, 2023
This paper presents the results of estimating the population density and abundance of Ursus arctos (hereinafter – brown bear) in the Southern Forestry of the Central Forest State Nature Biosphere Reserve (CFNR), West of European Russia, in 2021 based on ...
Sergey S. Ogurtsov
doaj   +1 more source

A continuum model for the dynamics of the phase transition from slow-wave sleep to REM sleep [PDF]

open access: yes, 2010
Previous studies have shown that activated cortical states (awake and rapid eye-movement (REM) sleep), are associated with increased cholinergic input into the cerebral cortex.
Voss, Logan J.   +5 more
core   +1 more source

Mammal population density estimation using camera traps based on a random encounter model: theoretical basis and practical recommendations

open access: yesNature Conservation Research: Заповедная наука, 2023
Estimating the population density of mammals has long been one of the problematic tasks of both fundamental population ecology and practical programmes for their conservation and management. The majority of methods for population density estimation using
Sergey S. Ogurtsov
doaj   +1 more source

Sparse Activity of Hippocampal Adult-Born Neurons during REM Sleep Is Necessary for Memory Consolidation.

open access: yesNeuron, 2020
The occurrence of dreaming during rapid eye movement (REM) sleep prompts interest in the role of REM sleep in hippocampal-dependent episodic memory. Within the mammalian hippocampus, the dentate gyrus (DG) has the unique characteristic of exhibiting ...
Deependra Kumar   +25 more
semanticscholar   +1 more source

REM sleep selectively prunes and maintains new synapses in development and learning

open access: yesNature Neuroscience, 2017
The functions and underlying mechanisms of rapid eye movement (REM) sleep remain unclear. Here we show that REM sleep prunes newly formed postsynaptic dendritic spines of layer 5 pyramidal neurons in the mouse motor cortex during development and motor ...
Wei Li, Lei Ma, Guang Yang, Wen-Biao Gan
semanticscholar   +1 more source

The primary function of REM sleep [PDF]

open access: yes, 2006
In this paper, the physiological features associated with the different stages of REM sleep and with what information processing researchers have called “effort” and “arousal” are compared.
Bernhard, Mr. Andrew E., Andrew Bernhard
core   +1 more source

The EEG as an index of neuromodulator balance in memory and mental illness

open access: yesFrontiers in Neuroscience, 2014
There is a strong correlation between signature EEG frequency patterns and the relative levels of distinct neuromodulators. These associations become particularly evident during the sleep-wake cycle.
Costa eVakalopoulos
doaj   +1 more source

Increasing the efficiency of rare earth metal recovery from technological solutions during processing of apatite raw materials

open access: yesЗаписки Горного института, 2021
The issues of complex processing of mineral resources are relevant due to the depletion of available raw materials. So, it is necessary to involve technological waste, generated during the processing of raw materials, to obtain valuable components.
Maria A. Ponomareva   +3 more
doaj   +1 more source

‘I love you’: the first phrase detected from dreams [PDF]

open access: yesSleep Science, 2022
Objective: Many people have dreams nightly and some maintain consciousness during dreams. Such dreams are referred to as lucid dreams (LD). During dreams, our speech correlates with facial muscle activity, which is hard to decode, but LD could solve this
Michael Raduga
doaj   +1 more source

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