Results 51 to 60 of about 60,999 (186)

Deformed Minkowski spaces: clasification and properties

, 1995
Using general but simple covariance arguments, we classify the `quantum' Minkowski spaces for dimensionless deformation parameters. This requires a previous analysis of the associated Lorentz groups, which reproduces a previous classification by ...
Aghamohammadi A, Carow-Watamura U, Carow-Watamura U, de Azcárraga J A, de Azcárraga J A, de Azcárraga J A, Demidov E E, Drinfel'd V G, Ewen H, F Rodenas, Faddeev L D, J A de Azcárraga, Jimbo M, Jimbo M, Karimipour V, Kulish P P, Kulish P P, Kupershmidt B A, Lukierski J, Majid S, Majid S, Majid S, Majid S, Majid S, Manin Yu I, Manin Yu I, Manin Yu I, Meyer U, Ogievetsky O, Podles P, Podles P, Schmidke W, Woronowicz S L, Zakrzeswki S   +33 more
core   +1 more source

Designing for Sustainability: Emerging Professional Roles and Capabilities for Designers in the 21st Century

International Journal of Art &Design Education, EarlyView.
Abstract Design Practice is shifting towards transdisciplinary, collaborative and problem‐based approaches in response to complex challenges of a changing world including societal issues and the climate crisis. However, the nature of emerging roles for designers aiming to contribute to sustainability transitions, and the capabilities that empower ...
Charlotte Kessler, Janice Rieger
wiley   +1 more source

Thermal transport of the XXZ chain in a magnetic field

, 2005
We study the heat conduction of the spin-1/2 XXZ chain in finite magnetic fields where magnetothermal effects arise. Due to the integrability of this model, all transport coefficients diverge, signaled by finite Drude weights. Using exact diagonalization
A. Honecker, D. Forster, F. Heidrich-Meisner, F. Heidrich-Meisner, G. D. Mahan, G. I. Dzhaparidze, M. P. Grabowski, Th. Niemeijer, V. E. Korepin, W. Brenig, X. Zotos   +10 more
core   +1 more source

Assessing the population structure of Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae) from the São Francisco River, Bahia, Brazil, using body morphology and otolith shape signatures

Journal of Fish Biology, EarlyView.
Abstract The south American silver croaker, Plagioscion squamosissimus, holds significant importance for the artisanal fisheries in the sub‐middle and lower courses of the São Francisco River, located in northeastern Brazil. To investigate the population structure of this species along its longitudinal profile, a total of 150 individuals (50 fish per ...
F. L. Freitas, N. S. Pereira, P. B. Pinheiro, R. Schroeder, A. T. Correia   +4 more
wiley   +1 more source

Financial Performance in the Light of Corporate Governance in Polish Family Businesses

Folia Oeconomica Stetinensia, 2017
The article presents a view (on the basis of theoretical and empirical analysis) of corporate governance models used in Polish family businesses through financial performance.
Socha Błażej, Majda-Kariozen Aleksandra   +1 more
doaj   +1 more source

Separation of Coupled Systems of Schrodinger Equations by Darboux transformations

, 2011
Darboux transformations in one independent variable have found numerous applications in various field of mathematics and physics. In this paper we show that the extension of these transformations to two dimensions can be used to decouple systems of ...
Magri F., MAYER HUMI, Nabiev A. A., Rogers C.   +3 more
core   +1 more source

How Social‐Symbolic Work Changes Places

Journal of Management Studies, EarlyView.
Abstract We advance the social‐symbolic work perspective by developing an understanding of places as objects characterized by location, materiality, function, and symbolic meaning and which can be changed through social‐symbolic work. Drawing from a longitudinal study of the ‘Empty Homes’ Programme in England, our analysis identifies an unfolding ...
April L. Wright, Richard Lang, Ewald Kibler   +2 more
wiley   +1 more source

Optimization of passenger flow control and parallel bus bridging in urban rail transit based on intelligent transport infrastructure

Computer-Aided Civil and Infrastructure Engineering, EarlyView.
Abstract Passenger flow control and bus bridging are used widely in the operations and management of urban rail transit to relieve the pressure of urban rail transit passenger flow, especially in peak periods. This paper presents an optimization method based on time‐varying running time in links.
Qingqing Zhao, Jinjin Tang, Wen‐Long Shang, Chao Li, Yifei Ren, Mohammed Quddus, Washington Ochieng   +6 more
wiley   +1 more source

Duckweeds: Model organisms for research on plant sterols and steroids

Plant Biology, EarlyView.
Duckweeds (Lemnaceae), the fastest‐growing angiosperms and promising vegan protein source, offer a powerful model to address key questions in plant physiology. This article highlights their potential for dissecting the biosynthesis and function of phytosterols, sterol conjugates, brassinosteroids, and specialized steroidal metabolites, such as ...
J. Klein, K.‐J. Appenroth, K. S. Sree
wiley   +1 more source

Equivalence of robust stabilization and robust performance via feedback

, 2008
One approach to robust control for linear plants with structured uncertainty as well as for linear parameter-varying (LPV) plants (where the controller has on-line access to the varying plant parameters) is through linear-fractional-transformation (LFT ...
Ball, J. A., Fang, Q., Groenewald, G. J., ter Horst, S.   +3 more
core   +1 more source