Results 71 to 80 of about 363,289 (302)

Resource Allocation for Network-Integrated Device-to-Device Communications Using Smart Relays

, 2013
With increasing number of autonomous heterogeneous devices in future mobile networks, an efficient resource allocation scheme is required to maximize network throughput and achieve higher spectral efficiency.
Hasan, Monowar, Hossain, Ekram
core   +1 more source

Ventral Pallidal Representation of Pavlovian Cues and Reward: Population and Rate Codes [PDF]

The Journal of Neuroscience, 2004
We recorded neural activity in the ventral pallidum (VP) while rats learned a pavlovian reward association. Rats learned to distinguish a tone that predicted sucrose pellets (CS+) from a different tone that predicted nothing (CS–). Many VP units became responsive to CS+, but few units responded to CS–.
Amy J, Tindell, Kent C, Berridge, J Wayne, Aldridge   +2 more
openaire   +2 more sources

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

The Variations of Satellite-Based Ecosystem Water Use and Carbon Use Efficiency and Their Linkages with Climate and Human Drivers in the Songnen Plain, China

Advances in Meteorology, 2019
Ecosystem water use efficiency (WUE) and carbon use efficiency (CUE), as two of the most important ecological indicators of an ecosystem, represent the carbon assimilation rate of unit water consumption and the capacity of transferring carbon from the ...
Bo Li, Fang Huang, Shuai Chang, Ning Sun
doaj   +1 more source

Level of abstinence mediates heart-rate response to cue-elicited craving in smokers

McGill Journal of Medicine, 2020
The subjective and autonomic components of nicotine craving were examined in abstinent and non-abstinent smokers using a cue reactivity paradigm. A cigarette abstinent condition was used to examine how smoking deprivation mediates the activity of ...
Jared T. Kelly, Sean P. Barrett, Robert O. Pihl, Alain Dagher   +3 more
doaj   +1 more source

Temporally dynamic neural correlates of drug cue reactivity, response inhibition, and methamphetamine-related response inhibition in people with methamphetamine use disorder

Scientific Reports, 2022
Cue-induced drug craving and disinhibition are two essential components of continued drug use and relapse in substance use disorders. While these phenomena develop and interact across time, the temporal dynamics of their underlying neural activity remain
Sara Jafakesh, Arshiya Sangchooli, Ardalan Aarabi, Mohammad Sadegh Helfroush, Amirhossein Dakhili, Mohammad Ali Oghabian, Kamran Kazemi, Hamed Ekhtiari   +7 more
doaj   +1 more source

Intermittent rate coding and cue-specific ensembles support working memory

Nature
AbstractPersistent, memorandum-specific neuronal spiking activity has long been hypothesized to underlie working memory1,2. However, emerging evidence suggests a potential role for ‘activity-silent’ synaptic mechanisms3–5. This issue remains controversial because evidence for either view has largely relied either on datasets that fail to capture single-
Matthew F. Panichello, Donatas Jonikaitis, Yu Jin Oh, Shude Zhu, Ethan B. Trepka, Tirin Moore   +5 more
openaire   +2 more sources

Cue-integration and context effects in speech: Evidence against speaking-rate normalization [PDF]

Attention, Perception, & Psychophysics, 2012
Listeners are able to accurately recognize speech despite variation in acoustic cues across contexts, such as different speaking rates. Previous work has suggested that listeners use rate information (indicated by vowel length; VL) to modify their use of context-dependent acoustic cues, like voice-onset time (VOT), a primary cue to voicing.
Joseph C, Toscano, Bob, McMurray
openaire   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Phenotypically Plastic Responses to Predation Risk Are Temperature Dependent [PDF]

, 2019
Predicting how organisms respond to climate change requires that we understand the temperature dependence of fitness in relevant ecological contexts (e.g., with or without predation risk).
Cressler, Clayton E., DeLong, John, Luhring, Thomas M., Vavra, Janna M.   +3 more
core   +1 more source