keyword
MENU ▼
Read by QxMD icon Read
search

entrainment

keyword
https://www.readbyqxmd.com/read/28936001/characterization-of-airborne-float-coal-dust-emitted-during-continuous-mining-longwall-mining-and-belt-transport
#1
M R Shahan, C E Seaman, T W Beck, J F Colinet, S E Mischler
Float coal dust is produced by various mining methods, carried by ventilating air and deposited on the floor, roof and ribs of mine airways. If deposited, float dust is re-entrained during a methane explosion. Without sufficient inert rock dust quantities, this float coal dust can propagate an explosion throughout mining entries. Consequently, controlling float coal dust is of critical interest to mining operations. Rock dusting, which is the adding of inert material to airway surfaces, is the main control technique currently used by the coal mining industry to reduce the float coal dust explosion hazard...
September 2017: Mining Engineering
https://www.readbyqxmd.com/read/28935857/sensorimotor-computation-underlying-phototaxis-in-zebrafish
#2
Sébastien Wolf, Alexis M Dubreuil, Tommaso Bertoni, Urs Lucas Böhm, Volker Bormuth, Raphaël Candelier, Sophia Karpenko, David G C Hildebrand, Isaac H Bianco, Rémi Monasson, Georges Debrégeas
Animals continuously gather sensory cues to move towards favourable environments. Efficient goal-directed navigation requires sensory perception and motor commands to be intertwined in a feedback loop, yet the neural substrate underlying this sensorimotor task in the vertebrate brain remains elusive. Here, we combine virtual-reality behavioural assays, volumetric calcium imaging, optogenetic stimulation and circuit modelling to reveal the neural mechanisms through which a zebrafish performs phototaxis, i.e...
September 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28934261/light-entrainment-of-the-murine-intraocular-pressure-circadian-rhythm-utilizes-non-local-mechanisms
#3
Shunsuke Tsuchiya, Ethan D Buhr, Tomomi Higashide, Kazuhisa Sugiyama, Russell N Van Gelder
PURPOSE: Intraocular pressure (IOP) is known to have a strong circadian rhythm, yet how light/dark cycles entrain this rhythm is unknown. The purpose of this study was to assess whether, like the retina, the mammalian ciliary body and IOP clocks have an intrinsic ability to entrain to light/dark cycles. METHODS: Iris-ciliary body complexes were obtained from period2:luciferase (PER2::LUC) mice and cultured to measure bioluminescence rhythmicity. Pairs of the iris-ciliary body complex were exposed to antiphasic 9:15 h light/dark cycle in vitro...
2017: PloS One
https://www.readbyqxmd.com/read/28931569/individual-alpha-peak-frequency-predicts-10-hz-flicker-effects-on-selective-attention
#4
Rasa Gulbinaite, Tara van Viegen, Martijn Wieling, Michael X Cohen, Rufin VanRullen
Rhythmic visual stimulation ("flicker") is primarily used to "tag" processing of low-level visual and high-level cognitive phenomena. However, preliminary evidence suggests that flicker may also entrain endogenous brain oscillations, thereby modulating cognitive processes supported by those brain rhythms. Here we tested the interaction between 10 Hz flicker and endogenous alpha-band (∼10 Hz) oscillations during a selective visuospatial attention task. We recorded EEG from human participants (both genders) while they performed a modified Eriksen flanker task in which distractors and targets flickered within (10 Hz) or outside (7...
September 20, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28930464/gastric-water-emptying-under-fed-state-clinical-trial-conditions-is-as-fast-as-under-fasted-conditions
#5
Michael Grimm, Elisabeth Scholz, Mirko Koziolek, Jens Peter Kuhn, Werner Weitschies
The Magenstrasse (stomach road) describes the fast emptying of ingested liquids from the postprandial stomach. The occurrence of the Magenstrasse has great importance for drugs administered together with food as it represents a shortcut through the fed stomach and allows rapid onset of plasma levels. In this study, we investigated the effect of different meals, their texture and fat content on the occurrence of the Magenstrasse. Since the administration of water is common 60 min after drug intake in clinical trials, we also investigated the effect of time point of water administration on the Magenstrasse by a second water administration...
September 20, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28928634/transcranial-alternating-current-stimulation-tacs-mechanisms-and-protocols
#6
REVIEW
Amir V Tavakoli, Kyongsik Yun
Perception, cognition and consciousness can be modulated as a function of oscillating neural activity, while ongoing neuronal dynamics are influenced by synaptic activity and membrane potential. Consequently, transcranial alternating current stimulation (tACS) may be used for neurological intervention. The advantageous features of tACS include the biphasic and sinusoidal tACS currents, the ability to entrain large neuronal populations, and subtle control over somatic effects. Through neuromodulation of phasic, neural activity, tACS is a powerful tool to investigate the neural correlates of cognition...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28927872/physical-pretreatment-of-biogenic-rich-trommel-fines-for-fast-pyrolysis
#7
Joseph Eke, Jude A Onwudili, Anthony V Bridgwater
Energy from Waste (EfW) technologies such as fluidized bed fast pyrolysis, are beneficial for both energy generation and waste management. Such technologies, however face significant challenges due to the heterogeneous nature, particularly the high ash contents of some municipal solid waste types e.g. trommel fines. A study of the physical/mechanical and thermal characteristics of these complex wastes is important for two main reasons; (a) to inform the design and operation of pyrolysis systems to handle the characteristics of such waste; (b) to control/modify the characteristics of the waste to fit with existing EFW technologies via appropriate feedstock preparation methods...
September 15, 2017: Waste Management
https://www.readbyqxmd.com/read/28927240/temporal-dynamics-of-hippocampal-and-medial-prefrontal-cortex-interactions-during-the-delay-period-of-a-working-memory-guided-foraging-task
#8
Maxym Myroshnychenko, Jeremy K Seamans, Anthony G Phillips, Christopher C Lapish
Connections between the hippocampus (HC) and medial prefrontal cortex (mPFC) are critical for working memory; however, the precise contribution of this pathway is a matter of debate. One suggestion is that it may stabilize retrospective memories of recently encountered task-relevant information. Alternatively, it may be involved in encoding prospective memories, or the internal representation of future goals. To explore these possibilities, simultaneous extracellular recordings were made from mPFC and HC of rats performing the delayed spatial win-shift on a radial maze...
September 12, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28926563/dance-to-the-rhythm-cautiously-isolating-unique-indicators-of-oscillatory-entrainment
#9
Assaf Breska, Leon Y Deouell
No abstract text is available yet for this article.
September 2017: PLoS Biology
https://www.readbyqxmd.com/read/28924249/validating-a-therapy-oriented-complication-grading-system-in-lumbar-spine-surgery-a-prospective-population-based-study
#10
David Bellut, Jan-Karl Burkhardt, Dania Schultze, Howard J Ginsberg, Luca Regli, Johannes Sarnthein
The aim of the present study was to validate a therapy-oriented complication grading system in a well-defined neurosurgical patient population in which complications may entrain neurological deficits, which are severe but not treated. The prospective patient registry of the Department of Neurosurgery, University of Zurich provides extensive population-based data. In this study we focused on complications after lumbar spine surgeries and rated their severity by Clavien-Dindo grade (CDG). Analyzing 138 consecutive surgeries we noted 44 complications...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28923598/testicular-atrophy-and-reproductive-quiescence-in-photorefractory-and-scotosensitive-quail-involvement-of-hypothalamic-deep-brain-photoreceptors-and-gnrh-gnih-system
#11
Somanshu Banerjee, Chandra Mohini Chaturvedi
Birds time their daily and seasonal activities in synchronization with circadian and annual periodicities in the environment, which is mainly provided by changes in photoperiod/day length conditions. Photoperiod appears to act at the level of eye, pineal and encephalic/deep brain photoperception and thus entrain the hypothalamic clock as well as reproductive circuitry in different avian species. In this article our focus of study is to elucidate out the underlying molecular mechanism of modulation of the hypothalamic reproductive circuitry following the photoperception through the hypothalamic photoreceptor cells and the subsequent alteration in the reproductive responses in quail, kept under different simulated photoperiodic conditions...
September 7, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28912746/the-role-of-slow-speech-amplitude-envelope-for-speech-processing-and-reading-development
#12
Paula Ríos-López, Monika T Molnar, Mikel Lizarazu, Marie Lallier
This study examined the putative link between the entrainment to the slow rhythmic structure of speech, speech intelligibility and reading by means of a behavioral paradigm. Two groups of 20 children (Grades 2 and 5) were asked to recall a pseudoword embedded in sentences presented either in quiet or noisy listening conditions. Half of the sentences were primed with their syllabic and prosodic amplitude envelope to determine whether a boost in auditory entrainment to these speech features enhanced pseudoword intelligibility...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28911620/composition-of-asarum-heterotropoides-var-mandshuricum-radix-oil-from-different-extraction-methods-and-activities-against-human-body-odor-producing-bacteria
#13
A S M Tanbirul Haque, Jin Nam Moon, P S Saravana, Adane Tilahun, Byung-Soo Chun
In this study, oils from Asarum heterotropoides were extracted by traditional solvent extraction and supercritical CO2 (SC-CO2) extraction methods and their antioxidant activities along with antimicrobial and inhibitory activities against five human body odor-producing bacteria (Staphylococcus epidermidis, Propionibacterium freudenreichii, Micrococcus luteus, Corynebacterium jeikeium, and Corynebacterium xerosis) were evaluated. The oil was found to contain 15 components, among which the most abundant component was methyl eugenol (37...
October 2016: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28910668/specific-contributions-of-basal-ganglia-and-cerebellum-to-the-neural-tracking-of-rhythm
#14
Sylvie Nozaradan, Michael Schwartze, Christian Obermeier, Sonja A Kotz
How specific brain networks track rhythmic sensory input over time remains a challenge in neuroimaging work. Here we show that subcortical areas, namely the basal ganglia and the cerebellum, specifically contribute to the neural tracking of rhythm. We tested patients with focal lesions in either of these areas and healthy controls by means of electroencephalography (EEG) while they listened to rhythmic sequences known to induce selective neural tracking at a frequency corresponding to the most-often perceived pulse-like beat...
August 19, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28910105/modeling-oil-shale-pyrolysis-high-temperature-unimolecular-decomposition-pathways-for-thiophene
#15
AnGayle K Vasiliou, Hui Hu, Thomas W Cowell, Jared C Whitman, Jessica Porterfield, Carol A Parish
The thermal decomposition mechanism of thiophene has been investigated both experimentally and theoretically. Thermal decomposition experiments were done using a 1 mm x 3 cm pulsed silicon carbide microtubular reactor, Unlike previous studies these experiments were able to identify the initial thiophene decomposition products. Thiophene was entrained in either Ar, Ne or He carrier gas, passed through a heated (300-1700 K) SiC microtubular reactor (roughly ≤100 μs residence time), and exited into a vacuum chamber...
September 14, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28899751/homeostatic-and-circadian-mechanisms-of-bioluminescence-regulation-differ-between-a-forest-and-a-facultative-cave-species-of-glowworm-arachnocampa
#16
Sarah E Berry, Joshua Gilchrist, David J Merritt
Glowworms, members of the keroplatid fly genus, Arachnocampa, glow to attract prey. Here we describe substantial differences in the bioluminescence regulatory systems of two species; one is a troglophile with populations both in caves and outside of caves in wet forest (Arachnocampa tasmaniensis) and the other has no known cave populations (Arachnocampa flava). We find that A. tasmaniensis is ready to initiate bioluminescence at any time darkness is encountered. In contrast, A. flava shows a homeostatic control of bioluminescence; it is unlikely to initiate bioluminescence when exposed to dark pulses during the photophase and it does so with a long latency...
September 9, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28894915/chronobiological-theories-of-mood-disorder
#17
Nevin F W Zaki, David Warren Spence, Ahmed S BaHammam, Seithikurippu R Pandi-Perumal, Daniel P Cardinali, Gregory M Brown
Major depressive disorder (MDD) remains the most prevalent mental disorder and a leading cause of disability, affecting approximately 100 million adults worldwide. The disorder is characterized by a constellation of symptoms affecting mood, anxiety, neurochemical balance, sleep patterns, and circadian and/or seasonal rhythm entrainment. However, the mechanisms underlying the association between chronobiological parameters and depression remain unknown. A PubMed search was conducted to review articles from 1979 to the present, using the following search terms: "chronobiology," "mood," "sleep," and "circadian rhythms...
September 11, 2017: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/28893860/coordination-between-differentially-regulated-circadian-clocks-generates-rhythmic-behavior
#18
Deniz Top, Michael W Young
Specialized groups of neurons in the brain are key mediators of circadian rhythms, receiving daily environmental cues and communicating those signals to other tissues in the organism for entrainment and to organize circadian physiology. In Drosophila, the "circadian clock" is housed in seven neuronal clusters, which are defined by their expression of the main circadian proteins, Period, Timeless, Clock, and Cycle. These clusters are distributed across the fly brain and are thereby subject to the respective environments associated with their anatomical locations...
September 11, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28893605/oscillator-networks-with-tissue-specific-circadian-clocks-in-plants
#19
REVIEW
Keisuke Inoue, Takashi Araki, Motomu Endo
Many organisms rely on circadian clocks to synchronize their biological processes with the 24-hour rotation of the earth. In mammals, the circadian clock consists of a central clock in the suprachiasmatic nucleus and peripheral clocks in other tissues. The central clock is tightly coupled to synchronize rhythmicity and can organize peripheral clocks through neural and hormonal signals. In contrast to mammals, it has long been assumed that the circadian clocks in each plant cell is able to be entrained by external light, and they are only weakly coupled to each other...
September 8, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28888241/buoyancy-and-turbulence-driven-atmospheric-circulation-over-urban-areas
#20
Yifan Fan, Julian Charles Roland Hunt, Yuguo Li
In the buoyancy and turbulence-driven atmospheric circulations (BTDAC) that occur over urban areas where the approach means wind speeds are very low (less than turbulent fluctuations and typically <3m/sec), the surface temperatures are significantly higher than those in the external rural areas, and the atmosphere above the mixing layer is stably stratified. In this paper, the mechanisms of BTDAC formation are studied through laboratory experiments and modelling, with additional low-level inflow from external rural areas and a divergent outflow in the opposite direction in the upper part of the mixed layer...
September 2017: Journal of Environmental Sciences (China)
keyword
keyword
48975
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"