Results 21 to 30 of about 3,801,916 (171)

Multi-Region Correlation Based Functional Brain Network for Disease Diagnosis and Cognitive States Detection

open access: yesIEEE Access, 2018
A functional brain network has attracted much attention due to its capability of characterizing the functional connectivity patterns of the brain. The existing methods for network construction usually rely on the conventional measures such as Pearson ...
Qi Zhu   +4 more
doaj   +1 more source

A New Method of Fatigue Life Prediction for Notched Specimen

open access: yesJournal of Aeronautical Materials, 2017
The simulations of the notched specimens under multiaxial loading were conducted by finite element method. The simulation results show that the stress gradient increases with the decrease in notch radius for the same strain path.
JIN Dan, GOU Zhifei
doaj   +1 more source

Effective long-distance pollen dispersal in Centaurea jacea. [PDF]

open access: yesPLoS ONE, 2009
Agri-environment schemes play an increasingly important role for the conservation of rare plants in intensively managed agricultural landscapes. However, little is known about their effects on gene flow via pollen dispersal between populations of these ...
Matthias Albrecht   +4 more
doaj   +1 more source

Distance-Entropy: An Effective Indicator for Selecting Informative Data

open access: yesFrontiers in Plant Science, 2022
Smart agriculture is inseparable from data gathering, analysis, and utilization. A high-quality data improves the efficiency of intelligent algorithms and helps reduce the costs of data collection and transmission.
Yang Li, Yang Li, Xuewei Chao
doaj   +1 more source

Redshift Weights for Baryon Acoustic Oscillations : Application to Mock Galaxy Catalogs [PDF]

open access: yes, 2016
Large redshift surveys capable of measuring the Baryon Acoustic Oscillation (BAO) signal have proven to be an effective way of measuring the distance-redshift relation in cosmology. Building off the work in Zhu et al.
Padmanabhan, Nikhil   +4 more
core   +2 more sources

Positive experience and further prospects for online education

open access: yesВестник Самарского университета: История, педагогика, филология, 2023
The article focuses on the positive aspects of online education and discusses the lessons learned and effective practices that can be brought back into conventional face-to-face classes.
Ye. V. Luganskaya, A. Yu. Suslova
doaj   +1 more source

The distance to the Orion Nebula Cluster [PDF]

open access: yes, 2006
The distance to the Orion Nebula Cluster (ONC) is estimated using the rotational properties of its low-mass pre main-sequence (PMS) stars. Rotation periods, projected equatorial velocities and distance-dependent radius estimates are used to form an ...
Anthony-Twarog   +49 more
core   +3 more sources

Conceptual and socio-cognitive support for collaborative learning in videoconferencing environments [PDF]

open access: yes, 2006
Studies have shown that videoconferences are an effective medium for facilitating communication between parties who are separated by distance. Furthermore, studies reveal that videoconferences are effective when used for distance learning, particularly ...
Ertl, B., Fischer, F., Mandl, H.
core   +2 more sources

Counting distance: Effects of egocentric distance on numerical perception

open access: yesPLOS ONE, 2017
Numerical value is long known to be associated with a variety of magnitude representations, such as size, time and space. The present study focused on the interactive relations of numerical magnitude with a spatial factor which is dominant in everyday vision and is often overlooked, namely, egocentric distance, or depth.
Nurit Gronau   +3 more
openaire   +4 more sources

Short-distance expansion of correlation functions in the charge-symmetric two-dimensional two-component plasma: Exact results [PDF]

open access: yes, 2005
We determine exactly the short-distance leading behavior of the density correlation functions of a two-dimensional two-component charge-symmetric Coulomb gas composed of point particles, in the whole regime of stability where the coulombic coupling ...
Tellez, Gabriel
core   +1 more source

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