Results 31 to 40 of about 417,817 (243)

Seasonality and landscape characteristics impact species community structure and temporal dynamics of East African butterflies

open access: yesScientific Reports, 2021
Species community structures respond strongly to habitat changes. These are either driven by nature or human activities. The biota of East African drylands responds highly sensitively to natural and anthropogenic impacts.
Thomas Schmitt   +4 more
doaj   +1 more source

Cosmological information in Gaussianised weak lensing signals

open access: yes, 2011
We investigate the information on cosmology contained in Gaussianised weak gravitational lensing convergence fields. Employing Box-Cox transformations to determine optimal transformations to Gaussianity, we develop analytical models for the transformed ...
Joachimi, B.   +2 more
core   +1 more source

On The Beta-Function in N=2 Supersymmetric Yang-Mills Theory [PDF]

open access: yes, 1998
The constraints of N=2 supersymmetry, in combination with several other quite general assumptions, have recently been used to show that N=2 supersymmetric Yang-Mills theory has a low energy quantum parameter space symmetry characterised by the discrete ...
Adam Ritz   +13 more
core   +2 more sources

Six-Dimensional (1,0) Superconformal Models and Higher Gauge Theory

open access: yes, 2013
We analyze the gauge structure of a recently proposed superconformal field theory in six dimensions. We find that this structure amounts to a weak Courant-Dorfman algebra, which, in turn, can be interpreted as a strong homotopy Lie algebra. This suggests
Baez J.   +7 more
core   +1 more source

The Spacetime of Double Field Theory: Review, Remarks, and Outlook [PDF]

open access: yes, 2013
We review double field theory (DFT) with emphasis on the doubled spacetime and its generalized coordinate transformations, which unify diffeomorphisms and b-field gauge transformations.
Hohm, Olaf   +2 more
core   +3 more sources

Equivalence of kinetic-theory and random-matrix approaches to Lyapunov spectra of hard-sphere systems [PDF]

open access: yes, 2010
In the study of chaotic behaviour of systems of many hard spheres, Lyapunov exponents of small absolute value exhibit interesting characteristics leading to speculations about connections to non-equilibrium statistical mechanics. Analytical approaches to
Astrid S. de Wijn   +30 more
core   +2 more sources

Observations and hypotheses related to low to middle free tropospheric aerosol, water vapor and altocumulus cloud layers within convective weather regimes: a SEAC4RS case study [PDF]

open access: yesAtmospheric Chemistry and Physics, 2019
The NASA Studies of Emissions and Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys (SEAC4RS) project included goals related to aerosol particle life cycle in convective regimes.
J. S. Reid   +18 more
doaj   +1 more source

Composition and Source Identification of Nitrogen in Groundwater in an Urbanized Basin

open access: yesRedai dili, 2023
The Maquekengshui basin in Pingshan District of Shenzhen was selected as a case study to reveal the composition characteristics and sources of nitrogen in groundwater, with water samples collected from domestic wells, bore holes with auger, and one ...
Huang Ying   +5 more
doaj   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

Flow equation approach to the sine-Gordon model

open access: yes, 2000
A continuous sequence of infinitesimal unitary transformations is used to diagonalize the quantum sine-Gordon model for \beta^2\in(2\pi,\infty). This approach can be understood as an extension of perturbative scaling theory since it links weak- to strong-
Amit   +34 more
core   +1 more source

Home - About - Disclaimer - Privacy