Integrating knowledge and control into hypermedia-based training environments: Experiments with HyperCLIPS

The issues of knowledge representation and control in hypermedia-based training environments are discussed. The main objective is to integrate the flexible presentation capability of hypermedia with a knowledge-based approach to lesson discourse management. The instructional goals and their associated concepts are represented in a knowledge representation structure called a 'concept network'. Its functional usages are many: it is used to control the navigation through a presentation space, generate tests for student evaluation, and model the student. This architecture was implemented in HyperCLIPS, a hybrid system that creates a bridge between HyperCard, a popular hypertext-like system used for building user interfaces to data bases and other applications, and CLIPS, a highly portable government-owned expert system shell

The Siricidae (Hymenoptera: Symphyta) of Florida

The six species of Siricidae (Hymenoptera: Symphyta) occurring in Florida and one species of regulatory concern introduced to North America are reviewed. Included are diagnoses of Eriotremex formosanus (Matsumura), Sirex areolatus (Cresson), Sirex nigricornis Fabricius, Tremex columba (Linnaeus), Urocerus cressoni Norton, Urocerus taxodii (Ashmead) and Sirex noctilio (Fabricius). A key to species, photographs of morphological features, biological notes and distribution data are provided. For the species T. columba, S. nigricornis, U. taxodii, and U. cressoni, a total of eight new state records are presented

Process control and recovery in the Link Monitor and Control Operator Assistant

This paper describes our approach to providing process control and recovery functions in the Link Monitor and Control Operator Assistant (LMCOA). The focus of the LMCOA is to provide semi-automated monitor and control to support station operations in the Deep Space Network. The LMCOA will be demonstrated with precalibration operations for Very Long Baseline Interferometry on a 70-meter antenna. Precalibration, the task of setting up the equipment to support a communications link with a spacecraft, is a manual, time consuming and error-prone process. One problem with the current system is that it does not provide explicit feedback about the effects of control actions. The LMCOA uses a Temporal Dependency Network (TDN) to represent an end-to-end sequence of operational procedures and a Situation Manager (SM) module to provide process control, diagnosis, and recovery functions. The TDN is a directed network representing precedence, parallelism, precondition, and postcondition constraints. The SM maintains an internal model of the expected and actual states of the subsystems in order to determine if each control action executed successfully and to provide feedback to the user. The LMCOA is implemented on a NeXT workstation using Objective C, Interface Builder and the C Language Integrated Production System

Tearing the Guts Out of the Wehrmacht: A Re-Examination of the Russo-German War

Nazi Germany invaded the Soviet Union on 22 June 1941. Hitler’s plan to annihilate Germany’s Eastern neighbor and populate the vast Russian expanse with his own people was as ambitious as it was adventuristic. Although it began successful, the Russo-German War quickly devolved into a quagmire as Russian troops outfought their German opponent and beat them back to Berlin. Contrary to prevailing historiography, the Wehrmacht’s loss on the Eastern Front cannot be solely attributed to a failure to equip German troops with proper winter clothing, an inadequate logistics network or Hitler’s interference in military decisions. For an army that had enjoyed rapid gains during late 1930s and 1940, only an enhanced tactical revolution, superior armor and a more aggressive martial ethos explains how the vaunted German military suffered ignominious defeat at the hands of what many consider a third-rate adversary

At the Heart of the Classroom: Teachers\u27 Experience of the Suffering and Success of Students for Whom They Care

The core of teaching is the relationship of care between the student and the teacher. A community can be created in the classroom that honors and respects the inherent worth of each individual and through such mutual respect students and teachers can experience success. The suffering and the successes that teachers experience are central to the way they care for their students. There is currently a great deal of focus on education and schooling in the United States and generally this focus ignores the necessity and vitality of the relationship of care. Teachers must daily support and care for students who have great struggles and great triumphs. In my dissertation, I will explore the nature of the experience of these teachers as they work with students who experience suffering and success. I will identify the themes of their experience using a hermeneutic phenomenological methodology based on the work of Max Van Manen. This dissertation is essentially a philosophical examination of the nature of teachers’ care for students and how they manifest the experience of suffering and success of those students. Therefore it is a deeply phenomenological work, bound not by the empirical, but by the life- worlds of the participants and of the author. The electronic version of this Dissertation is at OhioLink ETD Center, www.ohiolink.edu/et