Results 151 to 160 of about 624,114 (277)

Artificial Intelligence and Big Data in Sustainable Entrepreneurship

Journal of Economic Surveys, Volume 39, Issue 1, Page 103-145, February 2025.
Abstract There is an urgent need to transition our economy, society, and culture towards systems and actions that facilitate ecological sustainability. Such radical change requires equally radical transformation of approaches to decision making and resource use.
Steve J. Bickley, Alison Macintyre, Benno Torgler   +2 more
wiley   +1 more source

Gravity's rainbow: A bridge between LQC and DSR

Physics Letters B, 2017
The doubly special relativity (DSR) theories are constructed in order to take into account an observer-independent length scale in special relativity framework. Gravity's rainbow is a simple generalization of DSR theories to incorporate gravity.
M.A. Gorji, K. Nozari, B. Vakili
doaj   +1 more source

Sense‐making, sensemaking and sense making—A systematic review and meta‐synthesis of literature in information science and education: An Annual Review of Information Science and Technology (ARIST) paper

Journal of the Association for Information Science and Technology, Volume 76, Issue 1, Page 3-97, January 2025.
Abstract Sense‐making, sensemaking, and sense making are terms used in different disciplines. Similarities of usage seem unclear. (1) to examine the concepts used in different approaches to sense‐making/sensemaking/sense making; (2) to identify, classify and synthesize recent studies relevant to information science, as well as similar group on ...
Christine Urquhart, Bonnie Cheuk, Louisa Lam, Dave Snowden   +3 more
wiley   +1 more source

Matching the Vilkovisky–DeWitt Effective Action of Quantum Gravity to String Theory

Fortschritte der Physik, Volume 72, Issue 12, December 2024.
Abstract In this work, the matching of the Vilkovisky–DeWitt effective action of quantum gravity is discussedwith an example of an ultra‐violet complete theory of quantum gravity. The authors show how this matching enables a calculation of the local Wilson coefficients of the effective action. Several examples in string theory are provided.
Xavier Calmet, Elias Kiritsis, Folkert Kuipers, Dieter Lüst   +3 more
wiley   +1 more source

The picture of the Bianchi I model via gauge fixing in Loop Quantum Gravity

, 2012
The implications of the SU(2) gauge fixing associated with the choice of invariant triads in Loop Quantum Cosmology are discussed for a Bianchi I model.
A. Marchini, Ashtekar A., Ashtekar A., Ashtekar A., Bojowald M., Bojowald M., Bojowald M., Borja E. F., Cianfrani F., Cianfrani F. Lecian O. M. Montani G., F. Cianfrani, G. Montani, Perez A., Rovelli C., Thiemann T., Thiemann T., Thiemann T.   +16 more
core   +1 more source

Loop Quantum Cosmology Gravitational Baryogenesis [PDF]

, 2016
Loop Quantum Cosmology is an appealing quantum completion of classical cosmology, which brings along various theoretical features which in many cases offer remedy or modify various classical cosmology aspects. In this paper we address the gravitational baryogenesis mechanism in the context of Loop Quantum Cosmology. As we demonstrate, when Loop Quantum
arxiv   +1 more source

Flavor in SU(5)$SU(5)$ Finite Grand Unified Models

Fortschritte der Physik, Volume 72, Issue 12, December 2024.
Abstract Four SU(5)N=1$SU(5) \nobreakspace N=1$ supersymmetric models which exhibit S3$S_3$ and/or ZN$Z_N$ symmetries are studied, that are finite to two or all loops, and their corresponding mass matrices. The first is an all‐loop finite model based on an S3×Z3×Z2$S_3\times Z_3\times Z_2$ flavor symmetry, which leads to phenomenologically nonviable ...
Luis Odín Estrada Ramos, Myriam Mondragón, Gregory Patellis, George Zoupanos   +3 more
wiley   +1 more source

Hybrid loop quantum cosmology and predictions for the cosmic microwave background [PDF]

, 2017
We investigate the consequences of the hybrid quantization approach for primordial perturbations in loop quantum cosmology, obtaining predictions for the cosmic microwave background and comparing them with data collected by the Planck mission.
Laura Castell'o Gomar, D. M. Blas, G. A. M. Marug'an, J. Olmedo   +3 more
semanticscholar   +1 more source

Isotropic Loop Quantum Cosmology with Matter

, 2002
A free massless scalar field is coupled to homogeneous and isotropic loop quantum cosmology. The coupled model is investigated in the vicinity of the classical singularity, where discreteness is essential and where the quantum model is non-singular, as ...
A. Ashtekar, A. Ashtekar, A. Ashtekar, A. Vilenkin, B.S. DeWitt, C. Rovelli, C. Rovelli, F. Hinterleitner, F.G. Alvarenga, Franz Hinterleitner, G. Immirzi, J.B. Hartle, M. Bojowald, M. Bojowald, M. Bojowald, M. Bojowald, M. Bojowald, M. Bojowald, Martin Bojowald, N. Kontoleon, T. Thiemann, T. Thiemann, W.F. Blyth   +22 more
core   +1 more source

Holographic relations in loop quantum gravity [PDF]

arXiv, 2016
It is shown that a relation between entropy and minimal area holds in loop quantum gravity, reminiscent of the Ryu-Takayanagi relation.
arxiv