Results 41 to 50 of about 880,230 (109)

Almost Complex Surfaces in the Nearly Kähler Flag Manifold

Results 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

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

Oikos, 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, François Duchenne, Holger Beck, Carolina Bello, Rafaela Bobato, Emanuel Brenes, Daniela Bôlla, Nicole Büttner, Ana Paula Caron, José Alejandro Castro, Nelson Chaves‐Elizondo, María José Gavilanes, Esteban A. Guevara, Miriam Kaehler, Tiago Machado‐de‐Souza, Miguel Machnicki-Reis, Andrés S. Marcayata‐Fajardo, Cauã G. de Menezes, Andrea Nieto, Rafael de Oliveira, Ricardo A. C. de Oliveira, Alejandro Restrepo-González, Friederike Richter, Bryan G. Rojas, Luciele L. Romanowski, Ricardo Sánchez-Martín, Romulo C. da Silva, Wellinton Luiz de Souza, Danila S. Veluza, Ben Weinstein, Rafael Wüest, Thais B. Zanata, Krystal Zuniga, Tatiana Santander, Maria A. Maglianesi, Isabela G. Varassin, Catherine H. Graham   +36 more
wiley   +1 more source

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

Journal 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, Marjolein Luman, Barbara J. van den Hoofdakker, Saskia Van der Oord, Asma Aghebati, Bianca Boyer, Jan Buitelaar, Andrea Chronis‐Tuscano, David Daley, Tycho J. Dekkers, George J. DuPaul, Gregory A. Fabiano, Maite Ferrin, Nike Franke, Naama Gershy Tsahor, Elizabeth Harvey, Timo Hennig, Sharonne Herbert, Pieter J. Hoekstra, Lee Kern, Jennifer A. Mautone, Amori Yee Mikami, Sébastien Normand, Linda J. Pfiffner, Shizuka Shimabukuro, Satyam Antonio Schramm, Julie B. Schweitzer, Margaret H. Sibley, Edmund Sonuga‐Barke, Catherine Thompson, Margaret J. Thompson, Gail Tripp, Carolyn Webster‐Stratton, Yuhuan Xie, Patty Leijten, Annabeth P. Groenman   +35 more
wiley   +1 more source

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

Ecology 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, Gordana Popovic, Dadong Wang, Andrew Jansen, David Warton   +4 more
wiley   +1 more source

New G2 holonomy cones and exotic nearly Kaehler structures on the 6-sphere and the product of a pair of 3-spheres [PDF]

, 2016
There is a rich theory of so-called (strict) nearly Kaehler manifolds, almost-Hermitian manifolds generalising the famous almost complex structure on the 6-sphere induced by octonionic multiplication.
Haskins M., Foscolo L., Haskins, Mark, Haskins, M, Foscolo, L, Foscolo, Lorenzo   +5 more
core   +1 more source

Generic Riemannian Submersions from nearly K¨aehler Manifolds

Journal of the Tensor Society, 2007
We study generic Riemannian submersions from nearly K¨aehler manifolds onto Riemannian manifolds. We investigate conditions for the integrability of various distributions arising for generic Riemannian submersions and also obtain conditions for leaves to be totally geodesic foliations.
Kaushal, Rupali, Sachdeva, Rashmi, Kumar, Rakesh, Nagaich, R. K.   +3 more
openaire   +2 more sources

A transferable approach for quantifying benthic fish sizes and densities in annotated underwater images

Methods in Ecology and Evolution, Volume 16, Issue 1, Page 145-159, January 2025.
Abstract Benthic fishes are a common target of scientific monitoring but are difficult to quantify because of their close association to bottom habitats that are hard to access. Advances in image‐acquisition technologies, machine vision and deep learning have made capturing and quantifying fishes with cameras increasingly feasible.
Peter C. Esselman, Shadi Moradi, Joseph Geisz, Christopher Roussi   +3 more
wiley   +1 more source

Effects of pre‐treatment, historical age, and sample characteristics on the stable isotope analyses of killer whale (Orcinus orca) bone

Rapid Communications in Mass Spectrometry, Volume 38, Issue 19, 15 October 2024.
Rationale Stable isotope analysis of bone provides insight into animal foraging and allows for ecological reconstructions over time, however pre‐treatment is required to isolate collagen. Pre‐treatments typically consist of demineralization to remove inorganic components and/or lipid extraction to remove fats, but these protocols can differentially ...
Kelly R. Bowen, Carolyn M. Kurle
wiley   +1 more source

What Is the Ideal Dimension of Law?

Ratio Juris, Volume 37, Issue 3, Page 210-229, September 2024.
Abstract Various authors have claimed that law has an ideal dimension owed to a claim to correctness. Against this thesis, this article argues that there are several ideal dimensions of law, namely, a moral, a legal, and an ontological one. All of them are independent of a claim to correctness.
Lorenz Kaehler
wiley   +1 more source

The convenience yield under commodity financialization

Journal of Futures Markets, Volume 44, Issue 4, Page 631-652, April 2024.
Abstract A number of papers have dealt with commodity financialization finding strong evidence for its existence and its effect on commodity prices and volatility. We chose convenience yield (CY) to study the effect of commodity financialization based on the theory of storage and on the argument that CY resembles a call option.
Nikolaos T. Milonas, Evangelia K. Photina   +1 more
wiley   +1 more source