A systematic evaluation of the concept of break-even analysis and risk: A computer based empirical study

1988 ◽  
Vol 15 (1-4) ◽  
pp. 123-128
Author(s):  
Michael D. Chase ◽  
Jae K. Shim
Keyword(s):  
Empirical Study ◽  
Systematic Evaluation ◽  
Computer Based

Operator Performance in Cognitively Complex Simulated Emergencies; Implications for Computer-Based Support Systems

1994 ◽  
Vol 38 (4) ◽  
pp. 200-204 ◽  
Author(s):  
Emilie M. Roth
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Empirical Study ◽  
Nuclear Power ◽  
Support Systems ◽  
Situation Assessment ◽  
Operator Performance ◽  
Response Planning ◽  
Computer Based ◽  
Cognitive Activities

An empirical study was conducted examining operator performance in cognitively demanding simulated nuclear power plant emergencies. During emergencies operators follow highly prescriptive written procedures. The objectives of the study were to understand and document what role higher-level cognitive activities such as diagnosis, or more generally ‘situation assessment,’ play in guiding operator performance, given that operators utilize procedures in responding to the events. The study examined crew performance in two simulated emergencies. Up to 11 crews from each of two plants participated in two simulated emergencies for a total of 38 cases analyzed. Crew performance was videotaped and partial transcripts were produced and analyzed. The results revealed a number of instances where higher-level cognitive activities such as situation assessment and response planning enabled operators to handle aspects of the situation that were not fully addressed by the procedures. This paper describes these cases and discusses their implications for the design of computer-based support systems.

scholarly journals Evaluation of On-Line Courses Developed at the Faculty of Business Studies and Law and Faculty of Information Technology

2021 ◽  
Author(s):  
Bojana Burić Mutavči ◽  
Jelena Dumanjić ◽  
Marija Bajić
Keyword(s):  
Learning Environments ◽  
Evaluation Criteria ◽  
Interactive Learning Environments ◽  
Systematic Evaluation ◽  
Instructional Media ◽  
Trial Period ◽  
Integrated Learning Systems ◽  
Business Studies ◽  
On Line ◽  
Computer Based

Systematic evaluation of computer-based education (CBE) in all its various forms, including integrated learning systems, interactive multimedia, interactive learning environments and microworlds, often lags behind current development. Th erefore, an evaluation of on-line courses developed at the Faculty of Business Studies and Law and at the Faculty of Information Tehnology has been conducted. The sorses which were intended as a supplement to lectures and seminars were developed as a project using Citrix platform. The evaluation criteria used were based on the experience of the staff at the Instructional Media and Design department at Grant MacEwan College, Edmonton, Alberta, Canada and their eleven referential points. Considering the fact shat the courses evaluated are still in their trial period it was not suprising when the outcome showed substantial space for improvements.

The Effects of a Student Achievement Information System on Student Learning

1983 ◽  
Vol 11 (3) ◽  
pp. 215-224 ◽  
Author(s):  
Charles F. Adams ◽  
Ruth Howland
Keyword(s):  
Information System ◽  
Student Achievement ◽  
Student Learning ◽  
Formative Evaluation ◽  
School Personnel ◽  
Preliminary Evidence ◽  
Systematic Evaluation ◽  
Project Impact ◽  
Computer Based ◽  
Evaluation Information

This paper deals with the formative evaluation of Project IMPACT. This multi-faceted computer-based information system is designed to provide educators with the kinds of data and the scope of information which will enable them to make the best possible decisions relative to instruction. The preliminary evidence is in the direction of supporting the contention that when school personnel are provided frequent systematic evaluation information on student progress, there will be an increase in student achievement.

scholarly journals From Argumentation to Proof in Geometry Within a Collaborative Computer-Based Environment

2021 ◽  
Author(s):  
Umberto Dello Iacono
Keyword(s):  
Data Analysis ◽  
Empirical Study ◽  
Small Groups ◽  
Open Problem ◽  
Qualitative Data ◽  
Research Question ◽  
Educational Environment ◽  
Educational Goal ◽  
Communication Tools ◽  
Computer Based

AbstractThis article is part of a wider research project that has the educational goal of supporting students in the production of conjectures, arguments and proofs, as well as promoting a move from the production of arguments expressed in colloquial registers to arguments expressed in literate registers. In this regard, we Giovannina Albano, Umberto Dello Iacono and Maria Alessandra Mariotti designed and implemented a digital educational environment that allows students to formulate and prove conjectures; three different working areas are available where students can work on a geometrical open problem sometimes individually, sometimes in collaboration. In this article, I report on an empirical study aimed at investigating the functioning of one of these areas, the ‘Working with others’ area, where small groups of students are expected to discuss and formulate a shared solution to a problem. The research question concerns if and to what extent the communication tools, specifically designed to foster students’ collaboration, can promote the production of mathematically acceptable arguments. The qualitative data analysis shows that the ‘Working with others’ area seems to foster discussion within the group and can make students aware of their mistakes. Moreover, it can bring out some students’ misconceptions and can provide useful information upon which the teacher can trigger fruitful discussions. However, this working area does not appear to foster a significant improvement of the production of mathematically acceptable arguments, produced by students in a collaborative and sharing mode. The integration of specific components within this working area seems to be necessary to support the student in moving from argumentation to proof.

Compositional Strategies in Computer-Based Music-Making

1998 ◽  
Vol 15 (1) ◽  
pp. 83-97 ◽  
Author(s):  
Göran Folkestad ◽  
David J. Hargreaves ◽  
Berner Lindström
Keyword(s):  
Empirical Study ◽  
Present Article ◽  
Integrated Process ◽  
Music Making ◽  
Creative Music ◽  
Technological Developments ◽  
Computer Based ◽  
The Media ◽  
The Creation ◽  
Creative Music Making

Recent technological developments and the increasing impact of the media mean that listening to music and creative music making constitutes a major and integrated part of many young people's lives.The aim of the present article is to describe the process of computer-based composition, and how this is perceived by young composers. This paper describes a three-year empirical study of 129 computer-based compositions by 15 to 16-year-olds. Computer MIDI-fti.es were system- atically collected covering the sequence of the creation processes step by step; interviews were carried out with each of the participants; and observations were made of their work.All the participants succeeded in creating music, and in the subsequent analysis, six qualitatively different ways of creating music were identified which could be divided into two main categories: HORIZONTAL and VERTICAL. These categories, devised by the authors in this context, refer to compositional strategies, not to structures in the music itself. In the horizontal categories composition and arranging are separate processes, whereas in the vertical categories composition and arranging are one integrated process.

A Computer-Based Methodology for the Form Synthesis and Optimal Design of Robot Manipulators

1990 ◽  
Vol 112 (4) ◽  
pp. 501-508 ◽  
Author(s):  
S. Manoochehri ◽  
A. A. Seireg
Keyword(s):  
Optimal Design ◽  
Robot Manipulators ◽  
Integrated Design ◽  
Systematic Evaluation ◽  
Programming Approach ◽  
Optimization Strategy ◽  
Dynamic Programming Approach ◽  
Dynamic Synthesis ◽  
Computer Based ◽  
Integrated Design Process

The study reported in this paper deals with the development of a generalized computer-based methodology for the form synthesis and optimal design of robot manipulators. The developed computer program to implement the methodology operates in two separate modes. The first deals with the synthesis of user defined topologies and in the second mode, the designer provides only the required task, then the program will generate optimum manipulator configuration by systematic evaluation and ranking of plausible alternatives. The methodology simultaneously incorporates kinematic and dynamic synthesis as well as optimal actuation and stress analysis in an integrated design process. The procedure relies on the systematic composition of manipulator configurations from tabulated basic elements. The optimization strategy for synthesis and control utilizes a dynamic programming approach which makes it possible to select the optimum parameters in a stage-wise manner without sacrificing the interactions inherent in such highly coupled nonlinear systems.

Image Analysis of Intramembrane Particles in Freeze-Fractured Biomembranes Using Computer Simulation Techniques

1975 ◽  
Vol 33 ◽  
pp. 214-215
Author(s):  
D.J. Benefiel ◽  
R.S. Weinstein
Keyword(s):  
Membrane Proteins ◽  
Freeze Fracture ◽  
Integral Membrane Proteins ◽  
Systematic Evaluation ◽  
Intramembrane Particles ◽  
Modeling Methods ◽  
Simulation Techniques ◽  
Freeze Fracture Electron Microscopy ◽  
Fracture Electron ◽  
Computer Simulation Techniques

Intramembrane particles (IMP or MAP) are components of most biomembranes. They are visualized by freeze-fracture electron microscopy, and they probably represent replicas of integral membrane proteins. The presence of MAP in biomembranes has been extensively investigated but their detailed ultrastructure has been largely ignored. In this study, we have attempted to lay groundwork for a systematic evaluation of MAP ultrastructure. Using mathematical modeling methods, we have simulated the electron optical appearances of idealized globular proteins as they might be expected to appear in replicas under defined conditions. By comparing these images with the apearances of MAPs in replicas, we have attempted to evaluate dimensional and shape distortions that may be introduced by the freeze-fracture technique and further to deduce the actual shapes of integral membrane proteins from their freezefracture images.

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