A Domain-Independent Algorithm for Plan Adaptation

The paradigms of transformational planning, case-based planning, and plan debugging all involve a process known as plan adaptation - modifying or repairing an old plan so it solves a new problem. In this paper we provide a domain-independent algorithm for plan adaptation, demonstrate that it is sound, complete, and systematic, and compare it to other adaptation algorithms in the literature. Our approach is based on a view of planning as searching a graph of partial plans. Generative planning starts at the graph's root and moves from node to node using plan-refinement operators. In planning by adaptation, a library plan - an arbitrary node in the plan graph - is the starting point for the search, and the plan-adaptation algorithm can apply both the same refinement operators available to a generative planner and can also retract constraints and steps from the plan. Our algorithm's completeness ensures that the adaptation algorithm will eventually search the entire graph and its systematicity ensures that it will do so without redundantly searching any parts of the graph.Comment: See http://www.jair.org/ for any accompanying file

A Study of the Reliability of Electronic Components in a Nuclear-radiation Environment Twelfth Quarterly Report, Oct. 1 - Dec. 31, 1965

Total radiation dose and failure modes given for semiconductor devices exposed to neutron and gamma irradiatio

Origin, evolution and present thermal state of the moon

The relative absence of lunar volcanism in the last 3 b.y. and the Apollo 15 heat flow measurement suggest that present-day temperatures in the moon are approximately steady state to depths of 100 km. An exponential distribution of heat sources with depth is scaled by equating the surface heat flow to the integrated heat production of this exterior shell. Presumed present-day interior temperatures and the present-day surface heat flow of 30 ergs/cm2-sec are obtained. The estimated homogeneous concentrations of U, the chemistry of the lunar surface material and inferences to modest depth, and the short accretion time of the moon necessary to provide large-scale differentiation at 4.6 AE suggest that the moon had its origin in the rapid accretion of compounds first condensing from the protoplanetary nebula. The present thermal state of the moon may involve at least some partial melting through all the lunar interior deeper than 200 km. Such a thermal configuration is inconsistent neither with temperatures inferred from electrical conductivity studies nor with the nonhydrostatic shape of the moon

The effect of radiation on electrical insulating materials

Radiation effects on electrical insulating material

The use of a conventional wind tunnel as a multigas facility

Hypersonic and supersonic wind tunnels as continuous flow multigas facilitie

The revised test procedure for jpl test no. 617, phase ii to jet propulsion laboratory final report

Test procedures for reliability of electronic components in nuclear radiation environmen

A study of the reliability of electronic components in a nuclear-radiation environment Eleventh quarterly report, Jul. 1 - Sep. 30, 1965

Life tests on capacitors, diodes, controlled rectifiers, and transistors in nuclear radiation environmen

Radiation effects design handbook. Section 3 - Electrical insulating materials and capacitors

Steady state radiation effects on electrical insulating materials and capacitors - handboo

Causal contribution and dynamical encoding in the striatum during evidence accumulation.

A broad range of decision-making processes involve gradual accumulation of evidence over time, but the neural circuits responsible for this computation are not yet established. Recent data indicate that cortical regions that are prominently associated with accumulating evidence, such as the posterior parietal cortex and the frontal orienting fields, may not be directly involved in this computation. Which, then, are the regions involved? Regions that are directly involved in evidence accumulation should directly influence the accumulation-based decision-making behavior, have a graded neural encoding of accumulated evidence and contribute throughout the accumulation process. Here, we investigated the role of the anterior dorsal striatum (ADS) in a rodent auditory evidence accumulation task using a combination of behavioral, pharmacological, optogenetic, electrophysiological and computational approaches. We find that the ADS is the first brain region known to satisfy the three criteria. Thus, the ADS may be the first identified node in the network responsible for evidence accumulation

By-Products: Immigration, Raids, and Meatpacking in Rural Communities

The purpose of this thesis is to show the short- and long-term responses and adaptations of workers and employers in the meatpacking industry to the new immigration enforcement strategy of the increased use of worksite immigration raids. Worksite raids have become part of the new immigration enforcement strategy of the Immigration and Customs Enforcement agency (I.C.E.). A review of the literature regarding the meatpacking industry, its history, relocation to and impacts on rural communities, and of immigration policy over the last 70 years is conducted. A case study of the Swift & Co. meatpacking plant in Hyrum, Utah that experienced a worksite immigration raid in 2006 and in-depth, semi-structured interviews were conducted with five current and former plant workers, one former member of plant management, and one local ecclesiastical leader. The analysis reveals that the raid had strong impacts on the company, plant management, and workers. The company was sold the year after the raid due to financial losses suffered following the raid. Employers struggled to replace over 150 workers that were taken in the raid and to regain the trust of the remaining workers at the plant. Some workers lost close friends and family members in the raid and experienced instability and fear following the raid. It was found that employers made only one significant change following the raid in their hiring practices. They conducted more in-depth background checks with better follow-up with past employers of new applicants if the information was available. Workers were found to have made few changes after the raid since those not taken in the raid were confirmed as authorized workers and did not need to make many changes. The raid and more in-depth background checks led to more native-born workers being hired following the raid. This research indicates that the use of worksite raids has strong social and economic impacts on workers, employers, and local communities. More research is needed to better understand how the meatpacking industry and its workers are adapting to the new enforcement strategy and how effective this strategy has been, and will be in the future