Spatial and temporal dynamics of water flow and solute transport in a heterogeneous glacial till: The application of high-resolution profiles of δ18O and δ2H in pore waters

2012 ◽  
Vol 438-439 ◽  
pp. 203-214 ◽  
Author(s):  
Christine Stumpp ◽  
M. Jim Hendry
Keyword(s):  
High Resolution ◽  
Solute Transport ◽  
Water Flow ◽  
Temporal Dynamics ◽  
Glacial Till ◽  
Pore Waters ◽  
Spatial And Temporal Dynamics

Spatial and temporal dynamics of lekking behaviour revealed by high-resolution GPS tracking

2017 ◽  
Vol 129 ◽  
pp. 197-204 ◽  
Author(s):  
João P. Silva ◽  
Francisco Moreira ◽  
Jorge M. Palmeirim
Keyword(s):  
High Resolution ◽  
Temporal Dynamics ◽  
Gps Tracking ◽  
Spatial And Temporal Dynamics

scholarly journals High-resolution imaging of cellular dopamine efflux using a fluorescent nanosensor array

2017 ◽  
Vol 114 (8) ◽  
pp. 1789-1794 ◽  
Author(s):  
Sebastian Kruss ◽  
Daniel P. Salem ◽  
Lela Vuković ◽  
Barbara Lima ◽  
Emma Vander Ende ◽  
...  
Keyword(s):  
High Resolution ◽  
Temporal Dynamics ◽  
Positive Curvature ◽  
Chemical Signaling ◽  
Membrane Morphology ◽  
Spatial And Temporal Dynamics ◽  
Resolution Imaging ◽  
Dopamine Efflux ◽  
Analytical Tools ◽  
Walled Carbon Nanotubes

Intercellular communication via chemical signaling proceeds with both spatial and temporal components, but analytical tools, such as microfabricated electrodes, have been limited to just a few probes per cell. In this work, we use a nonphotobleaching fluorescent nanosensor array based on single-walled carbon nanotubes (SWCNTs) rendered selective to dopamine to study its release from PC12 neuroprogenitor cells at a resolution exceeding 20,000 sensors per cell. This allows the spatial and temporal dynamics of dopamine release, following K+stimulation, to be measured at exceedingly high resolution. We observe localized, unlabeled release sites of dopamine spanning 100 ms to seconds that correlate with protrusions but not predominately the positive curvature associated with the tips of cellular protrusions as intuitively expected. The results illustrate how directionality of chemical signaling is shaped by membrane morphology, and highlight the advantages of nanosensor arrays that can provide high spatial and temporal resolution of chemical signaling.

Spatial and temporal dynamics of lexico-semantic processing in American Sign Language

2011 ◽  
Author(s):  
M. Leonard ◽  
N. Ferjan Ramirez ◽  
C. Torres ◽  
M. Hatrak ◽  
R. Mayberry ◽  
...  
Keyword(s):  
American Sign Language ◽  
Sign Language ◽  
Semantic Processing ◽  
Temporal Dynamics ◽  
American Sign ◽  
Spatial And Temporal Dynamics

Spatial and temporal dynamics of Pacific capelin Mallotus catervarius in the Gulf of Alaska: implications for ecosystem-based fisheries management

2020 ◽  
Vol 637 ◽  
pp. 117-140 ◽  
Author(s):  
DW McGowan ◽  
ED Goldstein ◽  
ML Arimitsu ◽  
AL Deary ◽  
O Ormseth ◽  
...  
Keyword(s):  
Temporal Dynamics ◽  
Marine Ecosystem ◽  
Gulf Of Alaska ◽  
Data Series ◽  
Limited Information ◽  
Important Species ◽  
Multiple Data ◽  
Spatial And Temporal Dynamics ◽  
Spawning Areas ◽  
Spatio Temporal

Pacific capelin Mallotus catervarius are planktivorous small pelagic fish that serve an intermediate trophic role in marine food webs. Due to the lack of a directed fishery or monitoring of capelin in the Northeast Pacific, limited information is available on their distribution and abundance, and how spatio-temporal fluctuations in capelin density affect their availability as prey. To provide information on life history, spatial patterns, and population dynamics of capelin in the Gulf of Alaska (GOA), we modeled distributions of spawning habitat and larval dispersal, and synthesized spatially indexed data from multiple independent sources from 1996 to 2016. Potential capelin spawning areas were broadly distributed across the GOA. Models of larval drift show the GOA’s advective circulation patterns disperse capelin larvae over the continental shelf and upper slope, indicating potential connections between spawning areas and observed offshore distributions that are influenced by the location and timing of spawning. Spatial overlap in composite distributions of larval and age-1+ fish was used to identify core areas where capelin consistently occur and concentrate. Capelin primarily occupy shelf waters near the Kodiak Archipelago, and are patchily distributed across the GOA shelf and inshore waters. Interannual variations in abundance along with spatio-temporal differences in density indicate that the availability of capelin to predators and monitoring surveys is highly variable in the GOA. We demonstrate that the limitations of individual data series can be compensated for by integrating multiple data sources to monitor fluctuations in distributions and abundance trends of an ecologically important species across a large marine ecosystem.

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