Results 21 to 30 of about 416,545 (216)

Quantification and Qualification of Floral Patterns of Coffea arabica L. in Colombia

open access: yesPlants, 2023
The phenological patterns of coffee flowering in Colombia have typically been studied in a descriptive way, with knowledge from an inferential perspective being scarce.
Carlos Andres Unigarro   +3 more
doaj   +1 more source

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

open access: yesFrontiers 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

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

open access: yesIEEE 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   +4 more
doaj   +1 more source

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

open access: yesAgronomy, 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   +5 more
doaj   +1 more source

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

open access: yesFrontiers 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   +4 more
doaj   +1 more source

Variability of Acoustically Evidenced Methane Bubble Emissions Offshore Western Svalbard

open access: yesGeophysical Research Letters, 2019
Large reservoirs of methane present in Arctic marine sediments are susceptible to rapid warming, promoting increasing methane emissions. Gas bubbles in the water column can be detected, and flow rates can be quantified using hydroacoustic survey methods,
Mario E. Veloso‐Alarcón   +8 more
doaj   +1 more source

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

open access: yesSouth 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   +1 more
doaj   +1 more source

Extraction of Concealed Features From RF-EMF Monitoring at Kindergartens and Schools

open access: yesIEEE Access
Modern electromagnetic field (EMF) monitoring networks, such as the Serbian EMF RATEL network, are based on continuous EMF monitoring and offer daily observation of EMF levels in areas where people can reside for many hours a day and, consequently ...
Nikola Djuric   +4 more
doaj   +1 more source

Dual-Task Interference Increases Variability in Sub-Second Repetitive Motor Timing

open access: yesJournal of Functional Morphology and Kinesiology
Objectives: Sub-second motor timing is critical for skilled performance in domains such as sport, music, and safety-critical multitasking; however, its robustness under cognitive load remains unresolved. Dual-task paradigms offer a method to test whether
Ivan Šerbetar, Asgeir Mamen
doaj   +1 more source

Near-Infrared Spectroscopy (NIRS) and Optical Sensors for Estimating Protein and Fiber in Dryland Mediterranean Pastures

open access: yesAgriEngineering, 2021
Dryland pastures provide the basis for animal sustenance in extensive production systems in Iberian Peninsula. These systems have temporal and spatial variability of pasture quality resulting from the diversity of soil fertility and pasture floristic ...
João Serrano   +3 more
doaj   +1 more source

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