Results 31 to 40 of about 612 (101)

The N=4 effective action of type IIA supergravity compactified on SU(2)-structure manifolds [PDF]

open access: yes, 2011
We study compactifications of type IIA supergravity on six-dimensional manifolds with SU(2) structure and compute the low-energy effective action in terms of the non-trivial intrinsic torsion.
Danckaert, Thomas   +4 more
core   +5 more sources

Timing Is Everything: The Effect of Exposure to Pollution on Wildlife Gut Microbiota Is Contingent on Season

open access: yesMolecular Ecology, Volume 35, Issue 8, April 2026.
ABSTRACT Exposure to environmental pollutants can disrupt the gut microbiota, but how pollutants impact natural, seasonal changes in wildlife gut microbiota remains unknown. We quantified how exposure to radionuclides affected temporal changes in the gut microbiota of bank voles (Clethrionomys glareolus) inhabiting the Chornobyl Exclusion Zone (CEZ ...
Andrii Vasylenko   +5 more
wiley   +1 more source

Yang-Mills fields in flux compactifications on homogeneous manifolds with SU(4)-structure

open access: yes, 2012
The SU(4)-instanton equations are natural BPS equations for instantons on 8-manifolds. We study these equations on nearly Kaehler and Calabi-Yau torsion manifolds of the form M x G/H, with G/H a coset space and M a product of a torus with Euclidean space.
Harland, Derek, Popov, Alexander D.
core   +1 more source

Climatology of Medium‐Scale Traveling Ionospheric Disturbances Over Continental US Using GNSS TEC From 2012 to 2023

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Medium‐Scale Traveling Ionospheric Disturbances (MSTIDs) have long been a subject of interest in ionospheric research. However, their spatiotemporal variability across regions, local times, seasons, and solar cycles is very complicated and remains not well established.
Jing Liu   +4 more
wiley   +1 more source

Hummingbird flower visitation rates vary with species traits, floral abundance and phenology across bioregions

open access: yesOikos, Volume 2025, Issue 9, September 2025.
A myriad of factors influence species interactions, and determining their relative importance is a major challenge in community ecology. Here, we explored the multiple factors influencing hummingbird visitation rates to flowers by considering pollinator and floral traits alongside the broader ecological context (i.e.
Elisa Barreto   +36 more
wiley   +1 more source

Homogeneous spaces, multi-moment maps and (2,3)-trivial algebras

open access: yes, 2010
For geometries with a closed three-form we briefly overview the notion of multi-moment maps. We then give concrete examples of multi-moment maps for homogeneous hypercomplex and nearly Kaehler manifolds.
Madsen, Thomas Bruun, Swann, Andrew
core   +1 more source

Almost Complex Surfaces in the Nearly Kähler Flag Manifold

open access: yesResults in Mathematics, 2022
We study and classify almost complex totally geodesic submanifolds of the nearly Kaehler flag manifold $F_{1,2}(\mathbb C^3)$, and of its semi-Riemannian counterpart. We also develop a structural approach to the nearly Kaehler flag manifold $F_{1,2}(\mathbb C^3)$, expressing for example the curvature tensor in terms of the nearly Kaehler structure $J ...
Cwiklinski, Kamil, Vrancken, Luc
openaire   +2 more sources

Research Review: Mechanisms of change and between‐family differences in parenting interventions for children with ADHD – an individual participant data meta‐analysis

open access: yesJournal of Child Psychology and Psychiatry, Volume 66, Issue 9, Page 1304-1319, September 2025.
Background Understanding the mechanisms of change and between‐family differences in behavioural parenting interventions for children with attention‐deficit/hyperactivity disorder (ADHD) may help personalise interventions. Therefore, we examined whether improvements in parenting are associated with changes in child behaviour and functional outcomes, and
Constantina Psyllou   +35 more
wiley   +1 more source

Geometry of warped product semi-slant submanifolds of Kenmotsu manifolds

open access: yes, 2017
In this paper, we study semi-slant submanifolds and their warped products in Kenmotsu manifolds. The existence of such warped products in Kenmotsu manifolds is shown by an example and a characterization.
Uddin, Siraj
core   +1 more source

The Motion Picture: Leveraging Movement to Enhance AI Object Detection in Ecology

open access: yesEcology and Evolution, Volume 15, Issue 8, August 2025.
As AI methods become increasingly popular to automatically analyse ecology data, we investigate using movement information as a means to improve traditional object detection approaches (which are limited to static image information only) on over 35,000 annotated images from 1480 terrestrial, marine and freshwater locations, the most extensive ...
Ben Maslen   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy