Key to the terrestrial slugs (Gastropoda) of Northeastern United States and Southeastern Canada

Three species of terrestrial slugs (Gastropoda) are native to Northeastern United States and Southeastern Canada. At least twelve additional species have been accidentally introduced from Europe. Many of the introduced species are now widespread throughout the region; some are commonly found in natural forested habitats. Because of the complexity of the systematics of some of the introduced species, dissection of internal anatomical structures and DNA and other biochemical analyses may be required to distinguish cryptic species. Although this key to the terrestrial slugs of the Northeastern United States and Southeastern Canada was developed in 1973, it remains the best tool in identifying the terrestrial slug species of the region. Because it was published in a relatively obscure journal that is not readily available, we are placing it on this web site where it can be readily accessed.published or submitted for publicationis peer reviewe

Archival of Seasat-A satellite scatterometer data merged with in situ data at selected, illuminated sites over the ocean

A large data base of Seasat-A Satellite Scatterometer (SASS) measurements merged with high-quality surface-truth wind, wave, and temperature data has been documented. The data base was developed for all times when selected in situ measurement sites were within the SASS footprint. Data were obtained from 42 sites located in the coastal waters of North America, Australia, Western Europe, and Japan and were assembled by correlating the SASS and surface-truth measurements in both time and distance. These data have been archived on a set of nine-track 6250 bpi ASCII coded magnetic tapes, which are available from the National Technical Information Service

Stories as personal coaching philosophy

The importance of coaches developing and articulating a personal coaching philosophy which encapsulates their values and beliefs is widely recognised. Yet it is also acknowledged that many coaches resist what appears an abstract task or find it to be of limited use in their day-to-day practice. In this paper we explore the potential of an alternative approach to developing and articulating a personal coaching philosophy: storytelling. Following a discussion of the potential of stories, we present a story written by one coach which expresses her personal philosophy in a way that is firmly rooted in her coaching practice. Storytelling approaches, we suggest, can reveal the connections between abstract/general philosophy and the personal embodied experience of coaching. We reflect on the possibilities and problems of using stories as philosophy and offer some suggestions for how coaches may be supported in developing their coaching philosophy through storytelling

An Analog Technique for Soil-tool Systems

Throughout the history of agriculture man has sought improved methods of tilling soil. Technological developments in recent years have enabled man to apply large amounts of mechanical energy to soil tillage. But, as the energy limitations of the world begin to be realized, the development of more efficient means of soil tillage will become increasingly important. In tillage machine design, as in other engineering design fields, the designer has three basic methods of predicting the performance of a system. Murphy (12) states these methods as (i) application of existing laws and formulas, (ii) observations on the actual systems, and (iii) use of model systems, or similitude. The first method has not been successfully applied to tillage, while the second method has been and still is widely used in evaluating the performance of tillage machines. However, it is expensive, time consuming, and restrictive. Within the last 20 years, the third method which uses modeling and similitude theory has been applied to tillage studies. Some of the advantage of studying modeled tillage systems are: I, better control of the environment, ii. Better control over soil conditions, iii. Better application of instrumentation technology, iv. Less expense with model construction, and v. easy alteration of models. This research was conducted to further the application of modeling and similitude theory to soil-machine systems. The goal was to investigate and expand the application of an analog prediction technique which was proposed by Schafer (20)

Synthesis and Room Temperature NMR Analysis of Dimethylpiperazines

A survey of the literature has been made on the syntheses of 2,5- and 2,6-dimethylpiperazines. Several new N-substituted dimethylpiperazines were subsequently prepared. These are: cis-2,6-dimethyl-4-mesyl-piperazine, cis-2,5-dimethyl-l,4-dimesylpiperazine, and trans-2,5-dimethyl-l,4-dimesylpiperazine (Jl). Attempted syntheses of trans-2,6-dimethylpiperazine (!±,) are also discussed. Room temperature nmr analysis of these and other previously known piperazine isomers supports the hypothesis that the more energetically equivalent equilibrating conformers are the more compact the AB portion of the ABX pattern of the piperazine ring protons. This technique provides a convenient method for suggesting the configuration and conformation at room temperature of the seventeen isomers and derivatives that were studied. Piperazine ring proton assignments are based on coupling constants and chemical shifts. Steric factors influencing room temperature nmr analysis are also discussed

Analyzing and Improving Stochastic Network Security: A Multicriteria Prescriptive Risk Analysis Model

This research optimized two measures of network security by hardening components and improving their reliability. A common measure of effectiveness (MOE) for networks is statistical reliability, which ignores the effects of hostile actions. A new MOE which includes hostile actions was developed. Both measures require component reliability functions, derived using fault trees. Fuzzy Logic and Monte Carlo simulation were used to quantify uncertainty. Results from the model are compared to traditional Risk Assessment results

The History and Development of the American Business Corporation before 1800

An attempt has been made by the author in the pages which follow to show the development in a rather detailed manner of the American business corporation previous to and through the eighteenth century. The early chapters of this work have seemed advisable because they give the reader a general background which the author believes is beneficial in interpreting the latter part of the work

Deployable reflector antenna performance optimization using automated surface correction and array-feed compensation

Methods for increasing the electromagnetic (EM) performance of reflectors with rough surfaces were tested and evaluated. First, one quadrant of the 15-meter hoop-column antenna was retrofitted with computer-driven and controlled motors to allow automated adjustment of the reflector surface. The surface errors, measured with metric photogrammetry, were used in a previously verified computer code to calculate control motor adjustments. With this system, a rough antenna surface (rms of approximately 0.180 inch) was corrected in two iterations to approximately the structural surface smoothness limit of 0.060 inch rms. The antenna pattern and gain improved significantly as a result of these surface adjustments. The EM performance was evaluated with a computer program for distorted reflector antennas which had been previously verified with experimental data. Next, the effects of the surface distortions were compensated for in computer simulations by superimposing excitation from an array feed to maximize antenna performance relative to an undistorted reflector. Results showed that a 61-element array could produce EM performance improvements equal to surface adjustments. When both mechanical surface adjustment and feed compensation techniques were applied, the equivalent operating frequency increased from approximately 6 to 18 GHz