Results 41 to 50 of about 1,259,007 (299)

New perspectives in human movement variability [PDF]

, 2013
Movement variability is defined as the normal variations that occur in motor performance across multiple repetitions of a task.2 Bernstein1 described movement variability quite eloquently as ‘‘repetition without repetition.’’ Traditionally, movement ...
Lockhart, Thurmon, Stergiou, Nick
core   +3 more sources

Rapid Bioassessment Protocols Using Aquatic Macroinvertebrates in Africa–Considerations for Regional Adaptation of Existing Biotic Indices

Frontiers in Water, 2021
Benthic macroinvertebrates are commonly used to assess water quality and ecological condition of aquatic ecosystems and they form the basis of several biotic indices. Many of these biotic indices are based on rapid bioassessment protocols (RBP).
Helen F. Dallas, Helen F. Dallas
doaj   +1 more source

The vertical structure of upper ocean variability at the Porcupine Abyssal Plain during 2012-2013 [PDF]

, 2016
This study presents the characterization of variability in temperature, salinity and oxygen concentration, including the vertical structure of the variability, in the upper 1000m of the ocean over a full year in the northeast Atlantic.
Binetti, Umberto, Damerell, Gillian, Heywood, Karen, Kaiser, Jan, Thompson, Andrew   +4 more
core   +2 more sources

Temporal and spatial variability of snow accumulation in central Greenland [PDF]

, 1997
Snow accumulation records from central Greenland are explored to improve the understanding of the accumulation signal in Greenland ice core records. Results from a “forest” of 100 bamboo poles and automated accumulation monitors in the vicinity of Summit
Bolzan, Bromwich, C. Davidson, C. Stearns, Clausen, Dibb, Fischer, Fisher, H. Kuhns, J. Dibb, J.-L. Jaffrezo, Jaffrezo, M. Bergin, Mayewski, McConnell, Rodriguez-Iturbe   +15 more
core   +2 more sources

A Framework for RF-EMF Time Series Analysis Through Multi-Scale Time Averaging

IEEE Access
Five European systems for continuous monitoring of outside radio-frequency (RF) electromagnetic field (EMF) provide important insights into the long-term in situ variability of RF-EMF, as a valuable feature for accessing RF-EMF in areas with increased ...
Nikola Djuric, Dragan Kljajic, Nicola Pasquino, Vidak Otasevic, Snezana Djuric   +4 more
doaj   +1 more source

Workflow to Establish Time-Specific Zones in Precision Agriculture by Spatiotemporal Integration of Plant and Soil Sensing Data

Agronomy, 2018
Management zones (MZs) are used in precision agriculture to diversify agronomic management across a field. According to current common practices, MZs are often spatially static: they are developed once and used thereafter.
Elia Scudiero, Pietro Teatini, Gabriele Manoli, Federica Braga, Todd H. Skaggs, Francesco Morari   +5 more
doaj   +1 more source

Magnetic variability in the young solar analog KIC 10644253: Observations from the Kepler satellite and the HERMES spectrograph [PDF]

, 2016
The continuous photometric observations collected by the Kepler satellite over 4 years provide a whelm of data with an unequalled quantity and quality for the study of stellar evolution of more than 200000 stars.
Ballot, J., Beck, P. G., Bigot, L., Cellier, T., Corsaro, E., Creevey, O. L., Egeland, R., Garcia, R. A., Hernandez, F. Perez, Mathur, S., Metcalfe, T. S., Nascimento Jr., J. D. do, Palle, P. L., Regulo, C., Salabert, D.   +14 more
core   +5 more sources

Extreme signal amplitude events in neuromagnetic oscillations reveal brain aging processing across adulthood

Frontiers in Aging Neuroscience
IntroductionNeurophysiological activity, as noninvasively captured by electro- and magnetoencephalography (EEG and MEG), demonstrates complex temporal fluctuations approximated by typical variations around the mean values and rare events with large ...
Vasily A. Vakorin, Vasily A. Vakorin, Hayyan Liaqat, Sam M. Doesburg, Sylvain Moreno   +4 more
doaj   +1 more source

Acquired Dysarthria within the Context of the Four-level Framework of Speech Sensorimotor Control

South African Journal of Communication Disorders, 2007
The Four-Level Framework of speech sensorimotor control (Van der Merwe, 1997) complicates the traditional view of dysarthria as a purely motor execution disorder.
Alexandra Stipinovich, Anita van der Merwe   +1 more
doaj   +1 more source

Prompt Optical Emission from Gamma-ray Bursts with Non-single Timescale Variability of Central Engine Activities

, 2013
The complete high-resolution lightcurves of Swift GRB 080319B present an opportunity for detailed temporal analysis of the prompt optical emission. With a two-component distribution of initial Lorentz factors, we simulate the dynamical process of the ...
Li, Zhuo, Xu, Si-Yao
core   +1 more source