Results 51 to 60 of about 166,036,091 (156)
Ecology of Freshwater Fish, Volume 35, Issue 4, October 2026.ABSTRACT The structure of stream networks naturally fragments freshwater habitats, but this complexity is increasingly intensified by dams and reservoirs. How anthropogenic fragmentation interacts with natural isolation gradients to affect fish populations remains poorly understood.
Ana Carolina Daldegan +12 more
wiley +1 more source
Some isomorphisms for the Brauer groups of a Hopf algebra
, 2001 Using equivalences of categories we provide general isomorphisms between the Brauer groups of different Hopf algebras. One of those is used to prove that the Brauer groups BC(k, H_4, r(1)) for every dual quasitriangular structure r(t) on Sweedler's Hopf ...
CARNOVALE, GIOVANNA
core +1 more source
Abelian number fields with frobenian conditions
Mathematika, Volume 72, Issue 4, October 2026.Abstract We study the distribution of abelian number fields with frobenian conditions imposed on the conductor. In particular, we find an asymptotic for the number of abelian field extensions of a number field k$k$ whose conductor is the sum of two squares. We also discuss an application of the Brauer group of stacks to quadratic number fields.
Julie Tavernier
wiley +1 more source
Impact of Transported Wildfire Emissions on Urban PM2.5 and O3 in Queensland, Australia
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract Wildfires degrade urban air quality by transporting fine particulate matter (PM2.5 ${\text{PM}}_{2.5}$) and ozone (O3 ${\mathrm{O}}_{3}$) precursors. Such impacts are seldom quantified in the Southern Hemisphere. This study quantified contributions of wildfire emissions to ambient PM2.5 ${\text{PM}}_{2.5}$ and O3 ${\mathrm{O}}_{3}$ (ΔPM2.5 ...
Y. Xiao +7 more
wiley +1 more source
A Picard-Brauer exact sequence of categorical groups [PDF]
, 2002 A categorical group is a monoidal groupoid in which each object has a tensorial inverse. Two main examples are the Picard categorical group of a monoidal category and the Brauer categorical group of a braided monoidal category with stable coequalizers ...
Vitale, Enrico, Vitale, Enrico M.
core +1 more source
Molecular Oncology, Volume 20, Issue 9, Page 2243-2261, September 2026.Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch +13 more
wiley +1 more source
Prime order derangements in primitive permutation groups [PDF]
, 2011 Let G be a transitive permutation group on a finite set Ω of size at least 2. An element of G is a derangement if it has no fixed points on Ω. Let r be a prime divisor of |Ω|.
Giudici, M. +10 more
core +1 more source
Weakening of Subcortical and Strengthening of Cortical Visual Pathways Across Early Adolescence
Human Brain Mapping, Volume 47, Issue 13, September 2026.Longitudinal diffusion MRI in 4361 adolescents shows weakening of visual subcortical pathways but strengthening of cortical pathways over pubertal development. ABSTRACT Mounting evidence suggests that amygdalar nuclei receive visual information via both a well‐characterized cortical pathway through the inferior temporal cortex and a subcortical route ...
Arshiya Sangchooli +4 more
wiley +1 more source
Jumping the Gun: The Effects of Permitless Concealed Carry Laws on Crime
Journal of Policy Analysis and Management, Volume 45, Issue 4, Fall 2026.ABSTRACT In the last decade, one of the most substantial changes to firearm policy is the widespread adoption of permitless concealed carry laws. Since 2015, more than 20 states have adopted a permitless carry law. Permitless carry laws allow firearm owners to carry a concealed handgun in public without first obtaining a license and undergoing a ...
Susan T. Parker
wiley +1 more source
Yeast, Volume 43, Issue 5, Page 189-201, September 2026.ABSTRACT All organisms must be able to sense and respond to adverse environments, especially those that threaten cellular integrity. The age of genomics clarified the breadth and specificity of cellular stress responses, including in free‐living microbes directly exposed to a changing environment.
Audrey P. Gasch
wiley +1 more source