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Articles 241 - 267 of 267
Full-Text Articles in Physical Sciences and Mathematics
Implications Of Recent Research In Community Flood Education, Neil Dufty
Implications Of Recent Research In Community Flood Education, Neil Dufty
Neil Dufty
No abstract provided.
Are Warnings Working? Achievements And Challenges In Getting Communities To Respond, Neil Dufty, Steven Molino, Geoff Crapper, Alison Karwaj
Are Warnings Working? Achievements And Challenges In Getting Communities To Respond, Neil Dufty, Steven Molino, Geoff Crapper, Alison Karwaj
Neil Dufty
No abstract provided.
Evaluating The Efficacy Of Adaptive Management Approaches: Is There A Formula For Success?, Jamie E. Mcfadden, Tim L. Hiller, Andrew J. Tyre
Evaluating The Efficacy Of Adaptive Management Approaches: Is There A Formula For Success?, Jamie E. Mcfadden, Tim L. Hiller, Andrew J. Tyre
School of Natural Resources: Faculty Publications
Within the field of natural-resources management, the application of adaptive management is appropriate for complex problems high in uncertainty. Adaptive management is becoming an increasingly popular management-decision tool within the scientific community and has developed into two primary schools of thought: the Resilience-Experimentalist School (with high emphasis on stakeholder involvement, resilience, and highly complex models) and the Decision-Theoretic School (which results in relatively simple models through emphasizing stakeholder involvement for identifying management objectives). Because of these differences, adaptive management plans implemented under each of these schools may yield varying levels of success. We evaluated peer-reviewed literature focused on incorporation of …
Stability, Sustainability, And Catastrophe: Applying Resilience Thinking To U.S. Agriculture, Gigi M. Berardi, Rebekah Paci-Green, Bryant Hammond
Stability, Sustainability, And Catastrophe: Applying Resilience Thinking To U.S. Agriculture, Gigi M. Berardi, Rebekah Paci-Green, Bryant Hammond
Environmental Studies Faculty and Staff Publications
Resilience is closely related to notions of sustainability, but emphasizes unpredictable, dynamic environments. As conceptualized in engineering, hazards management, and ecology literature, part of resilience is adaptive capacity, the ability to react effectively to change over time in order to maintain a desirable system state. Agricultural policy has had the effect of undermining such adaptive capacity with its emphasis on stabilization. Using a resilience framework and Hurricane Katrina as an analogy, we suggest that the emphasis on stability and efficiency degrades agricultural system resilience in two ways: through reduced diversity in size and type of production, as well …
Designing Cyber Warfare Information Infrastructure Resilience, Semir Daskapan, Jan Van Der Berg
Designing Cyber Warfare Information Infrastructure Resilience, Semir Daskapan, Jan Van Der Berg
Australian Information Warfare and Security Conference
Due to many cyber attacks in the last years, governments are realizing how vulnerable they have become should there be a break out of a cyberwar. This urged them to establish a cyber warfare information infrastructure in a short time. However, this cyber warfare information infrastructure relies heavily on public infrastructures, like electricity and the Internet, which will be most likely targeted themselves. Therefore, a cyber warfare information infrastructure is by definition a vulnerable infrastructure that needs to be secured against attacks and made resilient. In this paper, we provide a method inspired by the theory of Complex Adaptive Systems …
Pathology And Failure In The Design And Implementation Of Adaptive Management, Craig R. Allen, Lance H. Gunderson
Pathology And Failure In The Design And Implementation Of Adaptive Management, Craig R. Allen, Lance H. Gunderson
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
The conceptual underpinnings for adaptive management are simple; there will always be inherent uncertainty and unpredictability in the dynamics and behavior of complex ecological systems as a result non-linear interactions among components and emergence, yet management decisions must still be made. The strength of adaptive management is in the recognition and confrontation of such uncertainty. Rather than ignore uncertainty, or use it to preclude management actions, adaptive management can foster resilience and flexibility to cope with an uncertain future, and develop safe to fail management approaches that acknowledge inevitable changes and surprises. Since its initial introduction, adaptive management has been …
Temporal Changes In Quality Of Life And Environment In New Orleans After Hurricane Katrina, Danielle Johanna Larock
Temporal Changes In Quality Of Life And Environment In New Orleans After Hurricane Katrina, Danielle Johanna Larock
LSU Master's Theses
Understanding and assessing the spatial and temporal changes of quality of life and environment of a community is critical to its sustainable development, especially after a disaster strikes. This study explores an approach that integrates remote sensing with socioeconomic data to assess the temporal changes in quality of life and environment (QOL) using Orleans Parish as an example. Hurricane Katrina, which struck New Orleans in 2005, has had vast implications economically, socially, and environmentally for this city and the surrounding area. Empirically quantifying these concepts will help to rebuild the city more sustainably. This study investigated change in environmental quality …
Organisational Resilience: A Propositional Study To Understand And Identify The Essential Concepts, Bruce Braes, David Brooks
Organisational Resilience: A Propositional Study To Understand And Identify The Essential Concepts, Bruce Braes, David Brooks
Australian Security and Intelligence Conference
Increased exposure to turmoil has raised business, social and governmental concerns over the ability of organisations to anticipate and respond positively to disruptions. Organisations are spending increased sums of money to raise levels of security; however, Organisational Resilience is a vague, multidisciplined and diverse philosophy, requiring a multiplicity of skills and knowledge that reaches far beyond security alone. The resilience domain is still developing and expanding; however, early embodiments of Organisational Resilience, originating in the United Kingdom and the United States, were nothing more than a rebranding of business continuity management strategies, put together as a ‘resilience processes’, or ‘resilience …
National Security: A Propositional Study To Develop Resilience Indicators As An Aid To Personnel Vetting, David Brooks, Jeff Corkill, Julie-Ann Pooley, Lynne Cohen, Cath Ferguson, Craig Harmes
National Security: A Propositional Study To Develop Resilience Indicators As An Aid To Personnel Vetting, David Brooks, Jeff Corkill, Julie-Ann Pooley, Lynne Cohen, Cath Ferguson, Craig Harmes
Australian Security and Intelligence Conference
Within the National Security domain there is a convergence of security responsibility across the national security agencies, law enforcement and private security sectors. The sensitivity of this environment requires individuals operating in the domain to be honest, trustworthy and loyal. Personnel vetting is a formal process used to determine an individual’s suitability for access to this domain. Notwithstanding this process, significant breaches of trust, security, and corruption still occur. In psychology, resilience is a well researched phenomenon that is considered a multidimensional construct where individual attributes, family aspects and social environment interact in aiding individuals to deal with vulnerability. There …
A New Approach To Community Flood Education, Neil Dufty
A New Approach To Community Flood Education, Neil Dufty
Neil Dufty
No abstract provided.
Resilience As Experienced By Environmental Educators, Kelly Henderson, Timothy S. O'Connell
Resilience As Experienced By Environmental Educators, Kelly Henderson, Timothy S. O'Connell
Research in Outdoor Education
This study examined resilience as experienced by environmental educators in the face of growing environmental adversity. Through in-depth interviews, this hermeneutical study sheds light on the environmental factors and internal competencies that contribute to resilience in seven environmental educators. Additionally, the interaction between these factors and competencies (known as the person/environment transactional process) is explored. Kumpfer's (1999) Resilience Framework provides the organizational framework for the results of this study.
Slides: Finding Flows: Fish Still Need Water Everyday, Melinda Kassen
Slides: Finding Flows: Fish Still Need Water Everyday, Melinda Kassen
Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)
Presenter: Melinda Kassen, Director of the Western Water Project, Trout Unlimited
12 slides
Natural Hazards Education In Australian Schools: How Can We Make It More Effective?, Neil Dufty
Natural Hazards Education In Australian Schools: How Can We Make It More Effective?, Neil Dufty
Neil Dufty
No abstract provided.
Remediating Impacts Of Global Climate Change-Induced Submergence On Salt Marsh Ecosystem Functions, Camille Lafosse Stagg
Remediating Impacts Of Global Climate Change-Induced Submergence On Salt Marsh Ecosystem Functions, Camille Lafosse Stagg
LSU Doctoral Dissertations
Impacts of global climate change, such as sea level rise and severe drought, have altered the hydrology of coastal salt marshes resulting in submergence and subsequent degradation of ecosystem function. A potential method of rehabilitating these systems is the addition of sediment-slurries to increase the elevation of the marsh surface, thus ameliorating the effects of excessive inundation. Although this technique is growing in popularity, the successful restoration of ecological function after sediment addition has received little attention. The purpose of this research was to determine if sediment subsidized salt marshes are functionally equivalent to natural marshes and whether salt marshes …
Resiliency Of New Orleans Following Hurricane Katrina: A Study Of Communities Three Years After The Storm, Lauren Marie Defrank
Resiliency Of New Orleans Following Hurricane Katrina: A Study Of Communities Three Years After The Storm, Lauren Marie Defrank
LSU Master's Theses
In 2005, Hurricane Katrina and subsequent levee failures produced widespread flooding in New Orleans, Louisiana and forced the evacuation of most of the local population. This event allowed for the study of the community’s resilience, or the ability of a system to absorb changes or perturbations and still function. Statistical analysis and case studies were used to study resilience and answer the following questions. Can natural community recovery models be used when evaluating the population recovery of a human community following a disturbance? Given that there are variations in population recovery patterns, what factors account for this difference in recovery? …
Slides: Adapting Western Water Policy For Resilience Under Climate Change, Bonnie G. Colby
Slides: Adapting Western Water Policy For Resilience Under Climate Change, Bonnie G. Colby
Shifting Baselines and New Meridians: Water, Resources, Landscapes, and the Transformation of the American West (Summer Conference, June 4-6)
Presenter: Dr. Bonnie G. Colby, Professor of Resource Economics & Hydrology, University of Arizona Department of Agriculture & Resource Economics
22 slides
Evaluation Of The Floodsmart And Stormsmart Pilot Programs And Their Transferability To The Urban Environment (Report), Neil Dufty
Neil Dufty
No abstract provided.
A New Approach To Flood Education (Booklet), Neil Dufty
A New Approach To Flood Education (Booklet), Neil Dufty
Neil Dufty
No abstract provided.
A New Approach To Community Flood Education, Neil Dufty
A New Approach To Community Flood Education, Neil Dufty
Neil Dufty
No abstract provided.
Building Community Resilience To Floods: The Role Of Education (Booklet), Neil Dufty
Building Community Resilience To Floods: The Role Of Education (Booklet), Neil Dufty
Neil Dufty
No abstract provided.
Roles And Responsiblities For Vicses In Flood Education (Report), Neil Dufty
Roles And Responsiblities For Vicses In Flood Education (Report), Neil Dufty
Neil Dufty
No abstract provided.
Evaluating Discontinuities In Complex Systems: Toward Quantitative Measures Of Resilience, Craig Stow, Craig R. Allen, Ahjond S. Garmestani
Evaluating Discontinuities In Complex Systems: Toward Quantitative Measures Of Resilience, Craig Stow, Craig R. Allen, Ahjond S. Garmestani
United States Geological Survey: Staff Publications
The textural discontinuity hypothesis (TDH) is based on the observation that animal body mass distributions exhibit discontinuities that may reflect the texture of the landscape available for exploitation. This idea has been extended to other complex systems, hinting that the identification and quantification of discontinuities in the distributions of appropriate variables may provide clues to emergent system properties such as resilience. We propose a discontinuity index, based on the vector norm of the full assemblage of observed discontinuities, as a means to quantify and compare this characteristic among systems. We also evaluate four methods to identify the number and location …
On Node Isolation Under Churn In Unstructured P2p Networks With Heavy-Tailed Lifetimes, Zhongmei Yao, Xiaoming Wang, Dmitri Loguinov
On Node Isolation Under Churn In Unstructured P2p Networks With Heavy-Tailed Lifetimes, Zhongmei Yao, Xiaoming Wang, Dmitri Loguinov
Computer Science Faculty Publications
Previous analytical studies [12], [18] of unstructured P2P resilience have assumed exponential user lifetimes and only considered age-independent neighbor replacement. In this paper, we overcome these limitations by introducing a general node-isolation model for heavy-tailed user lifetimes and arbitrary neighbor-selection algorithms. Using this model, we analyze two age-biased neighbor-selection strategies and show that they significantly improve the residual lifetimes of chosen users, which dramatically reduces the probability of user isolation and graph partitioning compared to uniform selection of neighbors. In fact, the second strategy based on random walks on age-weighted graphs demonstrates that for lifetimes with infinite variance, the system …
Governance And The Capacity To Manage Resilience In Regional Social-Ecological Systems, Louis Lebel, John M. Anderies, Bruce Campbell, Carl Folke, Steve Hatfield-Dodds, Terence P. Hughes, James Wilson
Governance And The Capacity To Manage Resilience In Regional Social-Ecological Systems, Louis Lebel, John M. Anderies, Bruce Campbell, Carl Folke, Steve Hatfield-Dodds, Terence P. Hughes, James Wilson
Earth Science Faculty Scholarship
The sustainability of regional development can be usefully explored through several different lenses. In situations in which uncertainties and change are key features of the ecological landscape and social organization, critical factors for sustainability are resilience, the capacity to cope and adapt, and the conservation of sources of innovation and renewal. However, interventions in social-ecological systems with the aim of altering resilience immediately confront issues of governance. Who decides what should be made resilient to what? For whom is resilience to be managed, and for what purpose? In this paper we draw on the insights from a diverse set of …
On Static And Dynamic Partitioning Behavior Of Large-Scale Networks, Derek Leonard, Zhongmei Yao, Xiaoming Wang, Dmitri Loguinov
On Static And Dynamic Partitioning Behavior Of Large-Scale Networks, Derek Leonard, Zhongmei Yao, Xiaoming Wang, Dmitri Loguinov
Computer Science Faculty Publications
In this paper, we analyze the problem of network disconnection in the context of large-scale P2P networks and understand how both static and dynamic patterns of node failure affect the resilience of such graphs. We start by applying classical results from random graph theory to show that a large variety of deterministic and random P2P graphs almost surely (i.e., with probability 1-o(1)) remain connected under random failure if and only if they have no isolated nodes. This simple, yet powerful, result subsequently allows us to derive in closed-form the probability that a P2P network develops isolated nodes, and therefore partitions, …
The Use Of Discontinuities And Functional Groups To Assess Relative Resilience In Complex Systems, Craig R. Allen, L. Gunderson, A. R. Johnson
The Use Of Discontinuities And Functional Groups To Assess Relative Resilience In Complex Systems, Craig R. Allen, L. Gunderson, A. R. Johnson
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
It is evident when the resilience of a system has been exceeded and the system qualitatively changed. However, it is not clear how to measure resilience in a system prior to the demonstration that the capacity for resilient response has been exceeded. We argue that self-organizing human and natural systems are structured by a relatively small set of processes operating across scales in time and space. These structuring processes should generate a discontinuous distribution of structures and frequencies, where discontinuities mark the transition from one scale to another. Resilience is not driven by the identity of elements of a system, …
Ecosystems And Immune Systems: Hierarchical Response Provides Resilience Against Invasions, Craig R. Allen
Ecosystems And Immune Systems: Hierarchical Response Provides Resilience Against Invasions, Craig R. Allen
United States Geological Survey: Staff Publications
Janssen (2001) provides the stimulus for thoughtful comparison and consideration of the ranges of responses exhibited by immune systems and ecological systems in the face of perturbations such as biological invasions. It may indeed be informative to consider the similarities of the responses to invasions exhibited by immune systems and ecological systems. Clearly, both types of systems share a general organizational structure with all other complex hierarchical systems. Their organization provides these systems with resilience. However, when describing the response of ecological-economic systems to invasions, Janssen emphasizes the human-economic response. I would like to expand on his comparison by focusing …