Results 21 to 30 of about 1,002,977 (299)

Navigating the Back Loop: Fostering Social Innovation and Transformation in Ecosystem Management

open access: yesEcology and Society, 2010
Addressing the environmental challenges of the 21st century requires substantial changes to the way modern society views and manages ecosystems. In particular, many authors contend that fundamental transformation of the largely sectoral, expert-centered ...
Reinette Biggs   +2 more
doaj   +1 more source

Can Properties of Labor-Exchange Networks Explain the Resilience of Swidden Agriculture?

open access: yesEcology and Society, 2010
Despite the fact that swidden agriculture has been the subject of decades of research, questions remain about the extent to which it is constrained by demographic growth and if it can adapt to environmental limits.
Sean S. Downey
doaj   +1 more source

Vitamin A cycle byproducts impede dark adaptation [PDF]

open access: yesJournal of Biological Chemistry, 2021
Impaired dark adaptation (DA), a defect in the ability to adjust to dimly lit settings, is a universal hallmark of aging. However, the mechanisms responsible for impaired DA are poorly understood. Vitamin A byproducts, such as vitamin A dimers, are small molecules that form in the retina during the vitamin A cycle.
Zhang, Dan   +3 more
openaire   +2 more sources

Adaptive mutation operator cycling [PDF]

open access: yes2009 Second International Conference on the Applications of Digital Information and Web Technologies, 2009
Parameter tuning can be a lengthy and exhaustive process. Furthermore, optimal parameter sets are usually not only problem specific, but also problem instance specific. Adaptive genetic algorithms perform parameter control during the run, thus increasing algorithm performance.
Prokopec, Aleksandar, Golub, Marin
openaire   +3 more sources

Adaptive performance optimization for large-scale traffic control systems [PDF]

open access: yes, 2011
In this paper, we study the problem of optimizing (fine-tuning) the design parameters of large-scale traffic control systems that are composed of distinct and mutually interacting modules.
Aboudolas, K()   +6 more
core   +2 more sources

Collapse and Reorganization in Social-Ecological Systems: Questions, Some Ideas, and Policy Implications

open access: yesEcology and Society, 2006
We tested the explanatory usefulness and policy relevance of Holling's (2001) "adaptive cycle" theory in exploring processes of "collapse," also called "release," and recovery in regional social-ecological systems (SESs) in Zimbabwe and Australia.
Nick Abel   +2 more
doaj   +1 more source

An Adaptive Design Methodology for Reduction of Product Development Risk

open access: yes, 2011
Embedded systems interaction with environment inherently complicates understanding of requirements and their correct implementation. However, product uncertainty is highest during early stages of development.
Khan, Dr. Ibrahim   +3 more
core   +1 more source

Non-equilibrium thermodynamics and development cycles of temperate natural forest ecosystems

open access: yesFolia Oecologica, 2018
The presented contribution in its first part summarizes several important theoretical findings of the system ecology supporting non-equilibrium paradigm of complex adaptive systems.
Urban Peter, Sabo Peter, Plesník Jan
doaj   +1 more source

Resilience Lost: Intersecting Land Use and Landscape Dynamics in the Prehistoric Southwestern United States

open access: yesEcology and Society, 2006
The interdisciplinary framework known as resilience theory used by ecologists, social scientists, as well as policy makers, is primarily concerned with the sources of transformation and stability in complex socioecological systems.
Matthew A. Peeples   +2 more
doaj   +1 more source

The Connotation and Measurement of the Resilience of Innovation Ecosystem in High-Tech Industrial Development Zones: A Case Study of Hunan Province

open access: yesRedai dili, 2023
At present, the economy of China is in a new stage, shifting from high-speed growth to high-quality development. Accordingly, high-tech industrial development zones (hereinafter referred to as "high-tech zones") have developed as clusters of innovative ...
Tang Chengli   +3 more
doaj   +1 more source

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