Results 31 to 40 of about 12,520 (137)
Quantum groups, Yang-Baxter maps and quasi-determinants
, 2017 For any quasi-triangular Hopf algebra, there exists the universal R-matrix, which satisfies the Yang-Baxter equation. It is known that the adjoint action of the universal R-matrix on the elements of the tensor square of the algebra constitutes a quantum ...
Tsuboi, Zengo
core +4 more sources
Scarcity may promote cooperation in populations of simple agents [PDF]
, 2013 In the study of the evolution of cooperation, resource limitations are usually assumed just to provide a finite population size. Recently, however, it has been pointed out that resource limitation may also generate dynamical payoffs able to modify the ...
Camacho, J., Requejo, R. J.
core +3 more sources
Ab initio investigation of the exchange interactions in Bi$_2$Fe$_4$O$_9$: The Cairo pentagonal lattice compound [PDF]
, 2013 We present the \emph{ab initio} calculation of the electronic structure and magnetic properties of Bi$_2$Fe$_4$O$_9$. This compound crystallizes in the orthorhombic crystal structure with the Fe$^{3+}$ ions forming the Cairo pentagonal lattice implying ...
Pchelkina, Z. V., Streltsov, S. V.
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International Review of Economics & FinanceDigital transformation is reshaping the model of enterprise value creation, steering it towards an ecosystem of stakeholder value cocreation. Core stakeholders—particularly executives and employees—play critical roles in this process, as value generation
Chao Zhang +3 more
doaj +1 more source
A Usability Evaluation Model for Academic Library Websites: Efficiency, Effectiveness and Learnability [PDF]
Journal of Library and Information Studies, 2011 Purpose – This paper aimed to develop a usability evaluation model and associated survey tool in the context of academic libraries. This study not only proposed a usability evaluation model but also a practical survey tool tailored to academic library ...
Soohyung Joo, Suyu Lin, Kun Lu
doaj
International Forum of Allergy &Rhinology, EarlyView.ABSTRACT Background Chronic rhinosinusitis (CRS) and allergic rhinitis (AR) are two highly prevalent airway diseases in the United States. While the coexistence of CRS and asthma is well recognized, less is known about the development of new‐onset asthma in CRS, particularly in the context of comorbid AR. This study assessed the impact of CRS and AR on
Austin J. Lee, Mohamad R. Chaaban
wiley +1 more source
Anticlastic Curvature and Material Freedom
physica status solidi (b), EarlyView.Anticlastic curvature occurs in bent bars for positive Poisson's ratio; synclastic curvature occurs for negative Poisson's ratio provided the material is homogeneous and elastic. Some planar negative Poisson's ratio materials exhibit anticlastic saddle curvature rather than convex curvature in bending due to effects of 3D structure.
Roderic Lakes
wiley +1 more source
Sex Hormones and the Risk of Nasal Polyps: A Two‐Sample Mendelian Randomization Study
World Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.ABSTRACT Objective The pathophysiological roles of sex hormones in airway inflammation have drawn much attention recently. We aimed to explore the causal effect of sex hormones on chronic rhinosinusitis (CRS) and nasal polyps (NP) via a Mendelian randomization (MR) study.
Ying Zhu +7 more
wiley +1 more source
Critical dislocation speed in helium-4 crystals [PDF]
, 2013 Our experiments show that in $^4$He crystals, the binding of $^3$He impurities to dislocations does not necessarily imply their pinning. Indeed, in these crystals, there are two different regimes of the motion of dislocations when impurities bind to them.
Balibar, Sébastien +5 more
core +4 more sources
Evolution of the dipole polarizability in the stable tin isotope chain
, 2020 The dipole polarizability of stable even-mass tin isotopes 112,114,116,118,120,124 was extracted from inelastic proton scattering experiments at 295 MeV under very forward angles performed at RCNP.
Adachi, S. +38 more
core +1 more source