Results 91 to 100 of about 271,947 (321)
Associations between ASL‐derived cerebrovascular health and cognitive performance: results from the Insight 46 study [PDF]
, 2023 Mathijs Dijsselhof +14 more
openalex +1 more source
Ecography, EarlyView.Projected warming and drying raise concerns about the resilience of stress‐adapted ecosystems, including the Brazilian Campo Rupestre, an exceptionally biodiverse mountaintop grassland mosaic on ancient, nutrient‐poor substrates. Here, we combine field‐based trait data and long‐term remote sensing to assess the functional structure and temporal ...
Renata Maia +5 more
wiley +1 more source
Conductivity of higher dimensional holographic superconductors with nonlinear electrodynamics
, 2018 We investigate analytically as well as numerically the properties of s-wave holographic superconductors in $d$-dimensional spacetime and in the presence of Logarithmic nonlinear electrodynamics.
Asl, Doa Hashemi +2 more
core +2 more sources
Warming summers limit reindeer grazing, weakening herbivory pressure in the mountain tundra
Ecography, EarlyView.Climate change is predicted to alter species interactions by exposing ecosystems to increasingly frequent and intense warm spells. In the mountain tundra, grazing by large herbivores, particularly reindeer, can limit shrub expansion and preserve Arctic plant diversity.
Marianne Stoessel +2 more
wiley +1 more source
International Journal of Biomedical Imaging, 2012 Cerebral blood flow (CBF) is a well-established correlate of brain function and therefore an essential parameter for studying the brain at both normal and diseased states.
Ajna Borogovac, Iris Asllani
doaj +1 more source
Vegetation on the move: elevational shifts and greening dynamics across the Himalayan alpine zone
Ecography, EarlyView.This study investigates alpine ‘vegetation line' (the upper limit of continuous plant community) dynamics in the Himalayan alpine zone (HAZ) over a 24‐year timescale (1999–2022) using maximum NDVI products derived from Landsat series datasets, adjusted for sampling bias using phenological modelling.
Ruolin Leng +5 more
wiley +1 more source
Super approximation for $\text{SL}_2\times \text{SL}_2$ and $\text{ASL}_2$ [PDF]
, 2023 Jincheng Tang, Xin Zhang
openalex +1 more source
Arterial Spin Labeling Perfusion of the Brain: Emerging Clinical Applications [PDF]
, 2016 Arterial spin labeling (ASL) is a magnetic resonance (MR) imaging technique used to assess cerebral blood flow noninvasively by magnetically labeling inflowing blood. In this article, the main labeling techniques, notably pulsed and pseudocontinuous ASL,
Barkhof, F +5 more
core
eNeurologicalSci, 2018 Background: Magnetic resonance imaging (MRI), including perfusion MRI with arterial spin labeling (ASL) and diffusion-weighted imaging (DWI), are applied in the periictal detection of circulatory and metabolic consequences associated with epilepsy ...
Kenta Takahara +8 more
doaj +1 more source
Tracing the origins and evolution of nymphalid butterflies (Lepidoptera) in the Atlantic Forest
Ecography, EarlyView.Understanding the relative roles of diversification and dispersal is key to explaining large‐scale biogeographical patterns. Although both processes are known to shape biodiversity, their relative contributions remain understudied for many organisms. Here, we examine how these processes have jointly contributed to the exceptional diversity and endemism
Mar Repullés +7 more
wiley +1 more source