Pitfall Trap Collections of Ground Beetle Larvae (Coleoptera: Carabidae) in Kentucky Alfalfa Fields

Pitfall traps were installed in alfalfa fields to monitor the seasonality and abundance of immature ground beetles. Head capsule widths were determined by instar for Evarthrus sodalis, Harpalus pennsylvanicus, Chlaenius tricolor, Scarites subterraneus, Amara cupreolata, and A. impuncticollis. Seasonality of larval and adult catches indicated that E. sodalis, H. pennsylvanicus and A. impuncticollis overwinter in a larval diapause while A. cupreolata and S. subterraneus overwinter in the adult stage

Where have all the poets gone?

Against the background of a diminished presence of poetry in the life of the Church, this essay sets out to trace the theological contours of poetic expression. The territory covered takes in the poetic texts found throughout Scripture (where we see poetry sanctified for the purpose of divine revelation) to the use of poetry in worship (where we see how it has sanctified the Church to doxological purpose). An absence of poetic texts in Church life risks two possible outcomes. First, it provides fertile ground for an arid rationalism as a result of uncoupling of the imagination and affections from the knowledge of God. Second, it can contribute to a sidelining of aesthetics in Church life and a resultant dichotomizing of the sacred and secular. The essay concludes by considering how churches might respond to the absence of poets. This takes in new approaches to the use of the Psalter in worship and the composition of poetry that reflects the impulses of contemporary Christian life. (This paper was selected as the winning entry in the 2016 Fraser Essay Prize competition.)Publisher PD

Midcourse maneuver operations program

Midcourse Maneuver Operations Program /MMOP/ computes the required velocity change to correct a spacecraft trajectory. The program establishes the existence of maneuvers which satisfy spacecraft constraints, explores alternate trajectories in the event that some out-of-tolerance condition forces a change in plans, and codes the maneuvers into commands

Monotonic Prefix Consistency in Distributed Systems

We study the issue of data consistency in distributed systems. Specifically, we consider a distributed system that replicates its data at multiple sites, which is prone to partitions, and which is assumed to be available (in the sense that queries are always eventually answered). In such a setting, strong consistency, where all replicas of the system apply synchronously every operation, is not possible to implement. However, many weaker consistency criteria that allow a greater number of behaviors than strong consistency, are implementable in available distributed systems. We focus on determining the strongest consistency criterion that can be implemented in a convergent and available distributed system that tolerates partitions. We focus on objects where the set of operations can be split into updates and queries. We show that no criterion stronger than Monotonic Prefix Consistency (MPC) can be implemented.Comment: Submitted pape

Methodology Matters; Even More

This editorial essay reflects on the importance of a section like Methodology Matters and its first two years. It also introduces the six articles in this issue of the European Management Review (EMR) that follow this essay and have progressed successfully through the review process for publication and it suggests ways in which the debates that each of those articles have started may be extended. This introduction also justifies other additions to the agenda that appeared in the original call for papers for submissions to this section of EMR

CF6-6D engine performance deterioration

Cruise cockpit recordings and test cell performance data in conjunction with hardware inspection data from airline overhaul shops were analyzed to define the extent and magnitude of performance deterioration of the General Electric CF6-6D model engine. These studies successfully isolated short-term deterioration from the longer term, and defined areas where a significant reduction in aircraft energy requirements for the 1980's can be realized. Unrestored losses which remain after engine refurbishment represent over 70% of the loss at engine shop visit. Sixty-three percent of the unrestored losses are cost-effective to restore which could reduce fuel consumed by CF6-6D engines in 1980 by 10.9 million gallons