Results 121 to 130 of about 1,967,993 (345)

Method to Detect Eye Position Noise from Video-Oculography when Detection of Pupil or Corneal Reflection Position Fails [PDF]

arXiv, 2017
We present software to detect noise in eye position signals from video-based eye-tracking systems that depend on accurate pupil and corneal reflection position estimation. When such systems transiently fail to properly detect the pupil or the corneal reflection due to occlusion from eyelids, eye lashes or various shadows, the estimated gaze position is
arxiv  

Roulette‐Inspired Physical Unclonable Functions: Stochastic yet Deterministic Multi‐Bit Patterning through the Solutal Marangoni Effect

Advanced Functional Materials, EarlyView.
Geometric multi‐bit patterning based on dynamic wetting and dewetting phenomena creates roulette‐like Physical Unclonable Function (PUF) labels with stochastic yet deterministic properties. This method leverages the solutal‐Marangoni effect for high randomness while achieving deterministic multinary patterns through polygonal confinement of binary ...
Yeongin Cho, Jeongsu Pyeon, Hanhwi Jang, Gwangsik Mun, Jaimin Kang, Byong‐Guk Park, Geon Yeong Kim, Hyoungsoo Kim, Yeon Sik Jung   +8 more
wiley   +1 more source

Syntactic adaptation and word learning in children and adults

Language Development Research
Syntactic adaptation may be a key mechanism underlying children’s learning of novel words. Havron et al. (2019) exposed French-speaking children (ages 3 to 4) to a speaker biased toward using either familiar verbs or familiar nouns in a syntactic context
Elizabeth Swanson, Judith Degen, Michael C Frank   +2 more
doaj   +2 more sources

Deep phenotyping of 11,880 highlanders reveals novel adaptive traits in native Tibetans

iScience, 2023
Summary: Tibetans are the ideal population to study genetic adaptation in extreme environments. Here, we performed systematic phenotyping of 11,880 highlanders, covering 133 quantitative traits of 13 organ systems.
Yaoxi He, Wangshan Zheng, Yongbo Guo, Tian Yue, Chaoying Cui, Ouzhuluobu, Hui Zhang, Kai Liu, Zhaohui Yang, Tianyi Wu, Jia Qu, Zi-Bing Jin, Jian Yang, Fan Lu, Xuebin Qi, Bing Su   +15 more
doaj  

Programmable Liquid Crystal Elastomers Via Magnetic Field Assisted Oligomerization

Advanced Functional Materials, EarlyView.
This article presents a straightforward method for designing programmable liquid crystal elastomer (LCE) actuators using magnetic field alignment. It combines thio‐Michael polyaddition for efficient LCE synthesis with a strategy that preserves the nematic phase, enabling the alignment of high molecular weight LCOs.
Rakine Mouhoubi, Vincent Lapinte, Sébastien Blanquer   +2 more
wiley   +1 more source

Ocular Clocks: Adapting Mechanisms for Eye Functions and Health

Investigative Ophthalmology and Visual Science, 2018
Vision is a highly rhythmic function adapted to the extensive changes in light intensity occurring over the 24-hour day. This adaptation relies on rhythms in cellular and molecular processes, which are orchestrated by a network of circadian clocks ...
M. Felder-Schmittbuhl, Ethan D. Buhr, O. Dkhissi-Benyahya, D. Hicks, S. Peirson, C. Ribelayga, Cristina Sandu, R. Spessert, G. Tosini   +8 more
semanticscholar   +1 more source

A Homeostatic Photonic Device Integrating Vapor‐Regulated Thermo‐Optical Feedback Mechanisms

Advanced Functional Materials, EarlyView.
An inorganic homeostatic photonic device is designed to autonomously regulate light, temperature, and vapor sorption through integrated positive and negative feedback mechanisms at multiple wavelengths. The device uses a graded mesoporous 1D photonic crystal coupled with a photothermal layer.
Caroline Byun, Davide R. Ceratti, Clémence Mimoso, Cédric Boissière, Marco Faustini   +4 more
wiley   +1 more source

Subterranean mammals show convergent regression in ocular genes and enhancers, along with adaptation to tunneling

eLife, 2017
The underground environment imposes unique demands on life that have led subterranean species to evolve specialized traits, many of which evolved convergently.
Raghavendran Partha, B. Chauhan, Zelia Ferreira, Joseph D Robinson, K. Lathrop, K. Nischal, M. Chikina, N. Clark   +7 more
semanticscholar   +1 more source

Efficient sensory cortical coding optimizes pursuit eye movements

Nature Communications, 2016
Efficient coding suggests that adapting gain to match the varying stimulus statistics should help in optimizing behaviour. Here the authors show that adaptation in motion sensitive neurons maximizes information and improves movement accuracy in pursuit ...
Bing Liu, Matthew V. Macellaio, Leslie C. Osborne   +2 more
doaj   +1 more source

Variable stars magnitudes estimations exploiting the eye physiology [PDF]

arXiv, 2011
The physiology of the dark adaption process of the eye is revisited from an astronomical point of view. A new method for the magnitude estimation of a star is presented. It is based upon the timing of the physiological cycle of the rhodopsin during the eye dark adaption process. The limits of the application of the method are discussed.
arxiv