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Paying for Permanence: An Economic Analysis of EPA's Cleanup Decisions at Superfund Sites
Permanence Decision making
2015/9/18
We analyze EPA's cleanup decisions at over 100 Superfund sites and examine whether
and how EPA trades off the cost against the permanence of cleanup. EPA's decisions
reveal both a preference for per...
Developmental Learning:A Case Study in Understanding “Object Permanence”
developmental learning object permanence robot robotic perceptual development computational model
2015/7/30
The concepts of muddy environment and muddy tasks set the ground for us to understand the essence of intelligence, both artificial and natural, which further motivates the need of Developmental Learni...
BURNED AREA, RECURRENCE OF FIRES AND PERMANENCE OF BURNT SCARS IN SELECTED AREAS OF THE BRAZILIAN CERRADO USING TM-LANDSAT IMAGERY
Forest Fire Land Cover GIS Monitoring Multitemporal Spati
2015/7/29
A study was conducted in two selected areas of the Brazilian cerrado using Landsat imagery during a five years period (1996-2000),
to address the following estimation issues: (1) burnt area using sta...
Rethinking Infant Knowledge:Toward an Adaptive Process Account of Successes and Failures in Object Permanence Tasks
Rethinking Infant Knowledge Adaptive Process Account Failures in Object Permanence
2015/6/19
Infants seem sensitive to hidden objects in habituation tasks at 3.5 months but fall to retrieve hidden objects until 8 months. The authors first consider principle-based accounts of these successes a...
Permanence in an impermanent world--Cyberarchaeology brings the past to life and preserves the present for tomorrow（图）
Cyberarchaeology e-Heritage Projects
2012/3/7
An emerging technology dubbed Mixed Reality, or MR, overlays virtual objects onto the real world to create a mixed reality environment. MR can provide users with an immersive experience that is richer...
From permanence to total availability: a quantum conceptual upgrade
From permanence total availability quantum conceptual upgrade
2010/11/11
We consider the classical concept of time of permanence and observe that its quantum equivalent is described by a bona fide self-adjoint operator. Its interpretation, by means of the spectral theorem,...
Permanence and periodic solution for a predator-prey model with mixed-type functional response
Predator-prey model mixed-type functional response
2010/9/14
In this paper, a predator-prey model with mixed-type functional response is investigated. Sufficient conditions are derived that guarantee the permanence of the system. Meanwhile, when the system is p...
Permanence of Early European Hand-made Papers
paper permanence alkaline beating fibre loading gelatine and lime
2009/2/5
An investigation into (and explanation for) the remarkable permanence of early European
papers made by hand in accordance with Italian practice is presented. The use of added lime
("addita calce") d...
Equilibriums and permanence for an autonomous competitive system with feedback control
competitive system feedback control equilibrium stability permanence
2010/9/14
In this paper, an autonomous competitive model with feedback control is studied.
And the equilibriums of the system are discussed at first. Then the stability of equilibriums
are obtained by ODE’s s...
Permanence and extinction of an impulsive single-species model with hereditary effect
Single-species model permanence extinction delay pulse
2010/9/14
In this paper we establish an impulsive single-species model with hereditary effect. Easily verifiable criteria for permanence and extinction of system are derived, respectively. A brief discussion is...
Permanence in Nonautonomous Predator-prey Lotka-Voterra Systems
nonautonomous lotka-volterra system
2007/12/10
In this paper some easily verifiable sufficient conditions on the permanence of solutions for general nonautonomous two-species predator-prey model are established. These new criteria improve and exte...