Results 61 to 70 of about 9,649,260 (315)

Fischer matrices of Dempwolff group $2^{5}{^{cdot}}GL(5,2)$ [PDF]

open access: yesInternational Journal of Group Theory, 2012
In cite{Demp2} Dempwolff proved the existence of a group of theform $2^{5}{^{cdot}}GL(5,2)$ (a non split extension of theelementary abelian group $2^{5}$ by the general linear group$GL(5,2)$).
Ayoub Basheer Mohammed Basheer   +1 more
doaj  

Born to Yawn? Understanding Yawning as a Warning of the Rise in Cortisol Levels: Randomized Trial

open access: yesInteractive Journal of Medical Research, 2012
BackgroundYawning consistently poses a conundrum to the medical profession and neuroscientists. Despite neurological evidence such as parakinesia brachialis oscitans in stroke patients and thermo-irregulation in multiple sclerosis patients, there is ...
Thompson, Simon BN, Bishop, Phil
doaj   +1 more source

Dynamics in Thompson's Group F

open access: yes, 2007
We describe an explicit relationship between strand diagrams and piecewise-linear functions for elements of Thompson's group F. Using this correspondence, we investigate the dynamics of elements of F, and we show that conjugacy of one-bump functions can be described by a Mather-type invariant.
Belk, James, Matucci, Francesco
openaire   +3 more sources

Evaluation problems for the Thompson group and the Brin-Thompson group, and their relation to the word problem

open access: yesCoRR, 2021
The Thompson group $V$, as well as the Brin-Thompson group $2V$, is finitely generated and can be defined as a monoid acting on bitstrings, respectively pairs of bitstrings. Therefore evaluation problems can be defined for $V$ and $2V$. We show that these evaluation problems reduce to the corresponding word problems, and that in general, these ...
openaire   +2 more sources

Causal analysis of trade loss from pathogens: A global study of foot and mouth disease impacts on meat exports

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Our general interest is in global trade loss from livestock pathogens, specifically exports. We adopt a causal inference approach that considers animal disease outbreaks over time as non‐staggered binary treatments with the potential for switching in (infection) and out of treatment (recovery) within the sample period. The outcome evolution of
Mohammad Maksudur Rahman   +1 more
wiley   +1 more source

3D Liquid Crystal Framework Enclosing Dual Compartments

open access: yesAngewandte Chemie, EarlyView.
A new type of liquid crystal phase is reported, having the conjugated rod‐like molecular cores form a 3D framework of elongated octahedral cages filled alternatively with alkyl and fluoroalkyl pendant chains. The cages are held together by flexible H‐bonding hinges, making them adaptable to thermal expansion and stable in a wide temperature range.
Yang‐yang Zhao   +7 more
wiley   +2 more sources

Randomized, Controlled Study to Evaluate the Safety and Efficacy of Oxygen-Enriched Epithelium-On Corneal Cross-Linking for the Treatment of Keratoconus

open access: yesOphthalmology and Therapy
Introduction This phase 3, multicenter, sham procedure/placebo-controlled, double-masked, randomized clinical trial evaluated the safety and efficacy of oxygen-enriched epithelium-on corneal collagen cross-linking (CXL) for the treatment of keratoconus ...
Kenneth A. Beckman   +9 more
doaj   +1 more source

Combinatorial properties of Thompson’s group 𝐹 [PDF]

open access: yesTransactions of the American Mathematical Society, 2003
We study some combinatorial consequences of Blake Fordham’s theorems on the word metric of Thompson’s group F F in the ...
Cleary, Sean, Taback, Jennifer
openaire   +3 more sources

Preferential trading in agriculture: New insights from a structural gravity analysis and machine learning

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Preferential trade agreements (PTAs) contain various non‐tariff provisions, yet identifying their trade effects remains challenging because these commitments are high‐dimensional and strongly correlated within agreements. We estimated a theory‐consistent structural gravity model with domestic flows for 26 agricultural subsectors over 1988–2017
Dongin Kim, Sandro Steinbach
wiley   +1 more source

Comparison of clinical efficacy of Ganz approach and K-L approach in treatment of Pipkin type IV femoral head fracture

open access: yesBMC Surgery
Objective To compare the efficacy of Ganz approach and Kocher-Langenbeck (K-L) approach in Pipkin type IV femoral head fracture (FHF) with internal fixation.
Jun Zhang   +3 more
doaj   +1 more source

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