نتایج جستجو برای: wake cycle

تعداد نتایج: 293091  

Journal: :Journal of neurology, neurosurgery, and psychiatry 2017
Anand Tekriwal Drew S Kern Jean Tsai Nuri F Ince Jianping Wu John A Thompson Aviva Abosch

Rapid eye movement (REM) sleep behaviour disorder (RBD) is characterised by complex motor enactment of dreams and is a potential prodromal marker of Parkinson's disease (PD). Of note, patients with PD observed during RBD episodes exhibit improved motor function, relative to baseline states during wake periods. Here, we review recent epidemiological and mechanistic findings supporting the prodro...

2007
Seungkyu Bac Dongho Kwak Cheeha Kim

Most of sensor MAC protocols have a fixed duty cycle, which performs poorly under the dynamic traffic condition observed in eventdriven sensor applications such as surveillance, fire detection, and objecttracking system. This paper proposes a traffic-aware MAC protocol which dynamically adjusts the duty cycle adapting to the traffic load. Our adaptive scheme operates on a tree topology, and nod...

Journal: :Behavioural brain research 2009
Felix J Bode Michael Stephan Sara Wiehager Huu Phuc Nguyen Maria Björkqvist Stephan von Hörsten Andreas Bauer Asa Petersén

Huntington's disease (HD) is a neurodegenerative disorder caused by a CAG repeat expansion in the HD gene. Besides psychiatric, motor and cognitive symptoms, HD patients suffer from sleep disturbances. In order to screen a rat model transgenic for HD (tgHD rats) for sleep-wake cycle dysregulation, we monitored their circadian activity peaks in the present study. TgHD rats of both sexes showed h...

2015
Per Henningsson Dirk Michaelis Toshiyuki Nakata Daniel Schanz Reinhard Geisler Andreas Schröder Richard J. Bomphrey

Particle image velocimetry has been the preferred experimental technique with which to study the aerodynamics of animal flight for over a decade. In that time, hardware has become more accessible and the software has progressed from the acquisition of planes through the flow field to the reconstruction of small volumetric measurements. Until now, it has not been possible to capture large volume...

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