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Two-Loop Diagrams in Causal Perturbation Theory [PDF]

open access: yesAnnals of Physics, 1997
16 pages, latex, the figures can be ordered at the first authors address (A.Aste), the necessary macros are included in the latex ...
Aste, A., Scharf, G.
openaire   +2 more sources

Get Your Model Out There: Advancing Methods for Developing and Using Causal-Loop Diagrams

open access: yes, 2021
As simple visual diagrams of key dynamics in complex systems, causal-loop diagrams could meet known needs in settings such as theory-based program evaluation and qualitative research.
Kenzie, Erin Suzanne, Kenzie, Erin S.
core   +1 more source

Productivity in an Organizational Setting: A Systematic View of the Causalities at Work

open access: yesAdministrative Sciences, 2022
The purpose of this research was to portray productivity in a larger context than has previously been presented, using system analysis. The result was a single causal loop diagram describing productivity in a work setting.
Ingunn Ýr Guðbrandsdóttir   +1 more
doaj   +1 more source

Quantum algorithm for Feynman loop integrals

open access: yesJournal of High Energy Physics, 2022
We present a novel benchmark application of a quantum algorithm to Feynman loop integrals. The two on-shell states of a Feynman propagator are identified with the two states of a qubit and a quantum algorithm is used to unfold the causal singular ...
Selomit Ramírez-Uribe   +4 more
doaj   +1 more source

Análise do Complexo Agroindustrial Citrícola Utilizando Diagramas de Influência

open access: yesRevista Produção Online, 2001
The purpose of this paper is to present the causal loop diagram method.For that purpose, a qualitative modeling of the system was accomplished through the Feedback Cycles Diagrams, making ...
Ruy Cordeiro Accioly   +1 more
doaj   +1 more source

Use of causal loop diagrams to assess future drivers and trends in South African transport

open access: yesJournal of Transport and Supply Chain Management, 2023
Background: In view of limited funding, research and development (RD) investment needs to be optimised for future impact. Road transport RD is complex and vary from road materials, design and traffic control to safety. Objectives: Future drivers, trends
Frederik C. Rust   +5 more
doaj   +1 more source

Causal diamonds, cluster polytopes and scattering amplitudes

open access: yesJournal of High Energy Physics, 2022
The “amplituhedron” for tree-level scattering amplitudes in the bi-adjoint ϕ 3 theory is given by the ABHY associahedron in kinematic space, which has been generalized to give a realization for all finite-type cluster algebra polytopes, labelled by ...
N. Arkani-Hamed   +3 more
doaj   +1 more source

Revisiting the servitization-sustainability link: A case study in the professional printing supply chain

open access: yesCleaner Logistics and Supply Chain, 2022
This paper investigates the link between servitization and sustainability. Extant literature assumes a positive effect of servitization on sustainability, while limited contributions report that, under certain conditions, servitization can also have ...
Nizar Abdelkafi   +3 more
doaj   +1 more source

Description of variables used in causal loop diagrams.

open access: yes, 2020
Description of variables used in causal loop diagrams.
Nicos Maglaveras (8537733)   +6 more
core   +1 more source

Realist Review and System Dynamics as a Multimethod Qualitative Synthesis Approach for Analyzing Waste Minimization in Aotearoa New Zealand

open access: yesSystems, 2023
Many of society’s most pressing problems, such as climate change, poverty, and waste, are categorized as “wicked” problems because they are seemingly resistant to change.
Suzanne Manning   +2 more
doaj   +1 more source

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