Results 81 to 90 of about 47,894 (240)

Intraindividual Variability as a Large Source of Trait Variation in Clonal Tundra Dwarf Shrubs Along Elevation and Latitude Gradients

Global Ecology and Biogeography, Volume 34, Issue 9, September 2025.
ABSTRACT Aim Intraindividual trait variability (iITV), which is the variability among repeated architectural units within an individual, may represent a crucial dimension of functional diversity in plant eco‐evolutionary dynamics. Although inter‐ and intraspecific trait variability have been widely studied, the extent of iITV remains largely overlooked.
Alba Anadon‐Rosell, Amanda Casanovas, Manuela Bog, Estela Illa, Jürgen Kreyling, Jordi Martínez‐Vilalta, Josep M. Ninot, Aaron Pérez‐Haase, Martin Wilmking   +8 more
wiley   +1 more source

Spin-charge separation for paired Dirac fermions in (1 + 1) dimensions

Journal of High Energy Physics
We study Dirac fermions at finite density coupled to a complex pairing field assumed to obey scalar field theory with quartic self-repulsion. The bulk of our work develops the mathematics that elucidates the propagation of fermionic excitations in such ...
Laith H. Haddad
doaj   +1 more source

Hidden LocaL Symmetry Theory as an Effective Field Theory of QCD

, 2005
In this write-up, I summarize the recent development of the hidden local symmetry (HLS) theory as an effective field theory of QCD. I first explain how the systematic chiral perturbation in the HLS is justified in the large Nc limit of QCD, and summarize the basic concept of the Wilsonian matching, through which some of the bare parameters of the HLS ...
openaire   +2 more sources

Linkage and association of preserved cognitive function in the midwestern Amish at a higher genetic risk of Alzheimer's disease

Alzheimer's &Dementia, Volume 21, Issue 8, August 2025.
Abstract INTRODUCTION Genetic factors promoting cognitive preservation in high‐risk older adults for Alzheimer's disease (AD) risk remain understudied. Among Midwestern Amish with elevated AD genetic risk, we hypothesized ranking sibships by mean genetic risk scores during linkage analysis would reveal loci influencing preserved cognition.
Daniel A. Dorfsman, Michael B. Prough, Alex V. Gulyayev, Laura J. Caywood, Jason E. Clouse, Sharlene D. Herington, Susan H. Slifer, Larry D. Adams, Renee A. Laux, Yeunjoo E. Song, Audrey Lynn, Sarada L. Fuzzell, Sherri D. Hochstetler, Kristy Miskimen, Leighanne R. Main, Ping Wang, Yining Liu, Noel Moore, Paula Ogrocki, Alan J. Lerner, Jeffery M. Vance, Michael L. Cuccaro, Jonathan L. Haines, Margaret A. Pericak‐Vance, William K. Scott   +24 more
wiley   +1 more source

Threshold resummation for semi-inclusive single-hadron production with effective field theory

Journal of High Energy Physics
Large double-logarithmic corrections are induced by soft gluon emissions near threshold in the semi-inclusive e + e − annihilation (SIA) distributions, and must be resummed to all-orders in perturbation theory for reliable theoretical predictions ...
Zhen Xu, Hua Xing Zhu
doaj   +1 more source

Two Micron‐Size Dark Dimensions

Fortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui, Ignatios Antoniadis, Dieter Lüst   +2 more
wiley   +1 more source

Lattice QCD and nuclear physics for searches of physics beyond the Standard Model

, 2018
Low-energy tests of fundamental symmetries are extremely sensitive probes of physics beyond the Standard Model, reaching scales that are comparable, if not higher, than directly accessible at the energy frontier.
Mereghetti, Emanuele
core   +1 more source

Superconducting multi-vortices and a novel BPS bound in chiral perturbation theory

Journal of High Energy Physics
We derive a novel BPS bound from chiral perturbation theory minimally coupled to electrodynamics at finite isospin chemical potential. At a critical value of the isospin chemical potential, a system of three first-order differential field equations ...
Fabrizio Canfora, Marcela Lagos, Aldo Vera   +2 more
doaj   +1 more source

Gauge-invariant on-shellZ 2 in QED, QCD and the effective field theory of a static quark

Zeitschrift f�r Physik C Particles and Fields, 1991
We calculate theon-shell fermion wave-function renormalization constantZ 2 of a general gauge theory, to two loops, inD dimensions and in an arbitrary covariant gauge, and find it to be gauge-invariant. In QED this is consistent with the dimensionally regularized version of the Johnson-Zumino relation: d logZ 2/da 0=i(2π)−D e 0
D. J. Broadhurst, N. Gray, K. Schilcher
openaire   +1 more source

Maximum Mass Limit of Generalized MIT Compact Star: A Theoretical Study of Thin Shell Dynamics and Gravitational Lensing

Fortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract In this study, the properties, equilibrium, and stability of compact objects within the framework of teleparallel gravity with the generalized MIT bag model are investigated. By incorporating the modified field equations, the influence of the generalized bag constant on the structure and physical characteristics of quark stars and neutron ...
Sayantan Ghosh, Sneha Pradhan, Pradyumn Kumar Sahoo   +2 more
wiley   +1 more source