Results 41 to 50 of about 3,580,404 (289)

Magnitude representations in Williams syndrome: differential acuity in time, space and number processing. [PDF]

open access: yesPLoS ONE, 2013
For some authors, the human sensitivity to numerosities would be grounded in our ability to process non-numerical magnitudes. In the present study, the developmental relationships between non numerical and numerical magnitude processing are examined in ...
Laurence Rousselle   +2 more
doaj   +1 more source

Sources and Secondary Production of Organic Aerosols in the Northeastern United States during WINTER [PDF]

open access: yes, 2018
Most intensive field studies investigating aerosols have been conducted in summer, and thus, wintertime aerosol sources and chemistry are comparatively poorly understood.
Apel, E. C.   +23 more
core   +2 more sources

Wearable Vibrotactile Haptic Device for Stiffness Discrimination during Virtual Interactions

open access: yesFrontiers in Robotics and AI, 2017
In this paper, we discuss the development of cost effective, wireless, and wearable vibrotactile haptic device for stiffness perception during an interaction with virtual objects.
Andualem Tadesse Maereg   +3 more
doaj   +1 more source

Perception of force and stiffness in the presence of low-frequency haptic noise. [PDF]

open access: yesPLoS ONE, 2017
OBJECTIVE:This work lays the foundation for future research on quantitative modeling of human stiffness perception. Our goal was to develop a method by which a human's ability to perceive suprathreshold haptic force stimuli and haptic stiffness stimuli ...
Netta Gurari   +2 more
doaj   +1 more source

Minimal impairment in a rat model of duration discrimination following excitotoxic lesions of primary auditory and prefrontal cortices

open access: yesFrontiers in Systems Neuroscience, 2011
We present a behavioral paradigm for the study of duration perception in the rat, and report the result of neurotoxic lesions that have the goal of identifying sites that mediate duration perception.
Shraddha S Pai   +7 more
doaj   +1 more source

Advances in the Characterization of Usnea barbata (L.) Weber ex F.H. Wigg from Călimani Mountains, Romania

open access: yesApplied Sciences, 2022
Usnea barbata (L.) Weber ex F.H. Wigg (U. barbata) is a medicinal representative of the lichens from the Usnea genus (Parmeliaceae, lichenized Ascomycetes), containing bioactive secondary metabolites.
Violeta Popovici   +13 more
doaj   +1 more source

A Fast and Accurate Unconstrained Face Detector [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2014
We propose a method to address challenges in unconstrained face detection, such as arbitrary pose variations and occlusions. First, a new image feature called Normalized Pixel Difference (NPD) is proposed. NPD feature is computed as the difference to sum
Shengcai Liao, Anil K. Jain, S. Li
semanticscholar   +1 more source

Reaction dynamics in Pb+Pb at the CERN/SPS: from partonic degrees of freedom to freeze-out [PDF]

open access: yes, 1998
We analyze the reaction dynamics of central Pb+Pb collisions at 160 GeV/nucleon. First we estimate the energy density pile-up at mid-rapidity and calculate its excitation function: The energy density is decomposed into hadronic and partonic contributions.
Aichelin   +40 more
core   +3 more sources

Consistency in statistical moments as a test for bubble cloud clustering [PDF]

open access: yes, 2011
Frequency dependent measurements of attenuation and/or sound speed through clouds of gas bubbles in liquids are often inverted to find the bubble size distribution and the void fraction of gas.
Bradley, David L   +2 more
core   +3 more sources

Identification of miRNA-103 in the Cellular Fraction of Human Peripheral Blood as a Potential Biomarker for Malignant Mesothelioma – A Pilot Study

open access: yesPLoS ONE, 2012
Background To date, no biomarkers with reasonable sensitivity and specificity for the early detection of malignant mesothelioma have been described.
Daniel G. Weber   +4 more
semanticscholar   +1 more source

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