Results 1 to 10 of about 1,028,192 (126)

Current Exchanges and Unconstrained Higher Spins [PDF]

open access: yes, 2007
The (Fang-)Fronsdal formulation for free fully symmetric (spinor-) tensors rests on (gamma-)trace constraints on gauge fields and parameters. When these are relaxed, glimpses of the underlying geometry emerge: the field equations extend to non-local ...
A. Sagnotti   +100 more
core   +4 more sources

Learning analytics to identify exploratory dialogue within synchronous text chat [PDF]

open access: yes, 2011
While generic web analytics tend to focus on easily harvested quantitative data, Learning Analytics will often seek qualitative understanding of the context and meaning of this information.
Buckingham Shum, Simon   +1 more
core   +2 more sources

Urban energy exchanges monitoring from space [PDF]

open access: yes, 2018
One important challenge facing the urbanization and global environmental change community is to understand the relation between urban form, energy use and carbon emissions.
AJ Arnfield   +38 more
core   +4 more sources

First measurement of coherent $\phi$-meson photoproduction from helium-4 near threshold

open access: yes, 2017
The differential cross sections and decay angular distributions for coherent $\phi$-meson photoproduction from helium-4 have been measured for the first time at forward angles with linearly polarized photons in the energy range $E_{\gamma} = \text{1.685 ...
Ahn, D. S.   +44 more
core   +1 more source

Have Betting Exchanges Corrupted Horse Racing? [PDF]

open access: yes, 2017
Betting exchanges allow punters to bet on a horse to lose a race. This, many argue, has opened up the sport to a new form of corruption, where races will be deliberately lost in order to profit from betting.
Brown, Alasdair, Yang, Fuyu
core   +1 more source

Ground-state phases of rung-alternated spin-1/2 Heisenberg ladder

open access: yes, 2015
The ground-state phase diagram of Heisenberg spin-1/2 system on a two-leg ladder with rung alternation is studied by combining analytical approaches with numerical simulations.
Amiri, F.   +3 more
core   +1 more source

Local exchangeability

open access: yesBernoulli, 2023
Exchangeability -- in which the distribution of an infinite sequence is invariant to reorderings of its elements -- implies the existence of a simple conditional independence structure that may be leveraged in the design of statistical models and inference procedures.
Campbell, Trevor   +4 more
openaire   +3 more sources

Surviving a Genome Collision: Genomic Signatures of Allopolyploidization in the Recent Crop Species [PDF]

open access: yes, 2017
Polyploidization has played a major role in crop plant evolution, leading to advantageous traits that have been selected by humans. Here, we describe restructuring patterns in the genome of Brassica napus L., a recent allopolyploid species.
Chalhoub, Boulos   +2 more
core   +1 more source

Health Insurance Exchanges: How Economic and Financial Modeling Can Support State Implementation [PDF]

open access: yes, 2010
Outlines considerations for modeling the impact of state health insurance exchanges on states, including size and number of exchanges; demographics, health status, and health costs of the newly covered; and extent of collaboration with other ...
Julie Sonier, Patrick Holland
core  

Parton branching at amplitude level

open access: yes, 2019
We present an algorithm that evolves hard processes at the amplitude level by dressing them iteratively with (massless) quarks and gluons. The algorithm interleaves collinear emissions with soft emissions and includes Coulomb/Glauber exchanges.
Forshaw, Jeffrey R.   +2 more
core   +1 more source

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