The intent of this thesis is to show the usefulness simulating of an instruction set in software and to demonstrate the feasibility of doing so by providing the framework of a simulation program.The design of new computer architectures and computer based control systems is a trial and error process. Normal design practice is to design and build a prototype of the new system and then evaluate the performance of the prototype. Designing complex systems in this manner is very time consuming and expensive; using a software program to simulate the operation of the new system can help solve certain design problems and shorten the development time and effort.The instruction set simulator executes a subset of the 8086 instruction set and contains routines that are useful in debugging the target software.The feasibility of implementing an instruction set simulator to solve certain design problems has been demonstrated by implementing the most commonly used op codes from the 8086 instruction set.Ball State UniversityMuncie, IN 47306

The chromosome numbers of the eight following species of freshwater diaptomid copepods were examined to elucidate relationships between species: Aglaodiaptomus clavipes, A. leptoups, Leptodiaptomus ashlandi, A. minutus, A. sicilis, A. siciloides, Skistodiaptomus oregonensis, and S. pallidus. The specimens evaluates were collected from various lakes in Wisconsin including Lake Michigan. Squash mounts were prepared from female individuals for microscopic evaluation. Comparisons of chromosome numbers and chromosome morphology indicated that the species considered are not as closely related as might be suspected based on external morphological considerations. The chromosome numbers varied greatly between species and no consistant numbers within subgenera were observed, substantiating the idea that the species are clearly well separated phylogenetically. A technique for preparing chromosome squash mounts from formalin preserved specimens in presented.Ball State UniversityMuncie, IN 47306

The immune regulatory abilities of alveolar macrophages from C57B1/6 mice bearing a metastatic variant of Lewis lung carcinoma were determined. During early stages of tumor development, or before tumors metastasized to the lungs, alveolar macrophages did not affect or slightly enhanced T-lymphocyte proliferation; as tumor growth progressed, or following tumor metastasis, alveolar macrophages suppressed the T-cell response. Macrophage suppressor activity was probably not mediated by their production of PGE, since macrophages of tumor-bearing mice secreted less 2 PGE than did macrophages of normal mice. Normal alveolar 2 macrophages or macrophages preincubated in tumor cell supernatant for a short period stimulated T-cell blastogenesis and secreted PGE during in vitro culture. However, with 2 longer exposure to tumor cell supernatant, alveolar macrophages lost the capacity to augment T-cell proliferation and secreted less PGE 2.Ball State UniversityMuncie, IN 47306

Twenty Sierra Leonean rural illiterate mothers were querried about their perceptions of the factors related to Kwashiorkor. Demographic data was hand tabulated to determine the frequency of parents' occupations, pregnancies, live and stillbirths, living and dead children, and causes of children's deaths. Chi-square analyses were done to assess the distribution of responses to questions about 19 beliefs which the researcher thought were related to Kwashiorkor. Student t-test was used to determine the differences in the total number and outcome of pregnancies between women who agreed and disagreed about the role of four of the factors which tended to show or showed significance with chi-square analyses.The families were subsistence farmers. In addition, 65 percent or the husbands had other jobs. Combined, the 20 women had 191 pregnancies, 166 live births, (87 percent of pregnancies), 25 (13 percent) stillbirths, 82 living children (43 percent of pregnancies and 49 percent of live births). The women lost through death 84 (50.6 percent) of the 166 live born children.The average woman experienced 9.6 pregnancies, resulting in 8.3 live births, and 1.3 stillbirths, had an average of 4.1 living children and had lost an average of 4.2 live born children. The data indicated that the major problem with infant/child mortality occurred after birth. Protein-Energy Malnutrition accounted for 38.1 percent of the children's deaths.Of the 19 factors about which women were querried in relation to role in Kwashiorkor, to only 4, namely “Witchcraft,” “Religious beliefs,” “Grandmother's advice,” and “Mother-in-law's advice” did less than half of the women agree. The majority of women agreed that 15 of the factors were associated with Kwashiorkor.That indicated the women had supportable understanding of factors truly related to Kwashiorkor.Three constructs, beliefs about “Witchcraft,” “Introduction of other foods,” and “Immunizations,” differentiated incidence and outcome of pregnancy among women. However, belief about the importance of “Immunizations” differentiated infant/child mortality and will be most useful in future research to analyze differences and to identify groups at greatest risk of child mortality.Ball State UniversityMuncie, IN 47306

The purpose of this study is to use Dimension Authoring Language (DAL) to write a Computer-Based Education (CBE) program which can control the DECtalk device and to use GIGI. utility programs and graphics editors, to improve DAL graphic capability. CBE embodies the idea of using computers as a tool in teaching by computer. Also the CBE control programs can keep track of students' record in the instructor's area. This way, instructors can improve lecture materials according to those records. The first chapter explains. what CBE is and its applications in education. The second chapter explains how DAL works and how to solve some of the language's technical problems. The third chapter explains how DECtalk works and how we can control this device in DAL programs. Since pictures can improve CBE programs, the fourth chapter explains picture files and graphic editors. Some problems related to DAL, DECtalk, and picture files are solved in this paper. However, there are several problems which still remain unsolved.Ball State UniversityMuncie, IN 47306

The purpose of this study was to evaluate what forms of maintenance programs for the home are currently available on the market, and to develop a structured, organized framework for an easy-to-use system. From an inventory of what was available at national bookstore chains and from public libraries, it was evident that there was a void in information about scheduled maintenance accessible to the public. Therefore this paper addressed this issue. This thesis first investigated the history of upkeep and maintenance and its published materials and then assessed how best to fill the void in the area of continuous home care.This area was of interest because haphazard and random describe an owner's usual approach to maintenance around the home. Quality maintenance should not be hasty nor superficial. Rather, it should be an in-depth, consciously organized effort of preserving the building fabric. Treating a repair as a quick fix-it job is comparative to applying a band-aid to a cut which requires further medical treatment. This type of care is inadequate because it has not solved the problem which still exists. Therefore, maintenance should have the characteristic of being a conscious, in-depth effort. Quality maintenance should also be an organized effort, thereby avoiding the possibility of being hit-or-miss or lackadaisical.Simply, maintenance is the process of upkeep, of cleaning and monitoring the interior and exterior of a structure. Detecting an arising problem within the fabric, swiftly dealing with it, solving the situation and avoiding further deterioration is preventive maintenance. In other words upkeep is two-fold: 1) inspecting and repairing damage from general wear and tear (maintenance) and 2) preparing the house and its support systems for future use (preventive measures). Whether new construction or an older home, any aged structure can benefit from simple scheduled maintenance.In terms of conservation technology, a preventive maintenance program can significantly contribute to the preservation of historic and nonhistoric structures. Maintenance is a direct intervention process; it involves a one-on-one relationship and an ongoing interaction between owner and building. The goal in implementing a maintenance program is preservation: the sustaining and prolonging of the life and integrety of a special building--the home.Ball State UniversityMuncie, IN 47306

Yellow perch, Perca flavescens (Mitchill), were collected by trawling and gillnetting in Indiana waters of Lake Michigan near Michigan City, Indiana. Sampling was conducted during the months of June, July and August from 1984 through 1986.Growth rates and length-weight relationships were found to be considerably lower than those reported previously. Males declined 38 mm at age I, 55 mm at age II, 56 mm at age III and 35 mm at age IV comparing 1986 to 1976. Females showed similar declines for the same period at 40 mm for age I, 58 mm at age II, 66 mm at age III and 53 mm at age IV. The primary reason for the decrease in growth appears to be due to the current high population density of yellow perch in Indiana waters of Lake Michigan.Maturation of males for 1986 appears to be slower than that of 1984. All male perch were mature by age III in 1984. However, only 68x of the males were mature at the same age in 1986. In 1984, 94% of the females were mature by age IV while 86% were mature at the same age in 1986.Differences in maturation rate may be a reflection of the reduced growth rates. Size at maturity was found to be similar for both sexes in 1984 and 1986. All females were mature by 230-239 mm in 1984 and 220-229 mm in 1986. All male perch were mature at 180-189 mm in 1984 and 220-229 mm in 1986.Total estimated average annual percent mortalities of 79, 58, 66 and 55 were calculated for combined sexes from age composition analyses end trawl catch data for 1976 and 1984-86. Yellow perch production for 100 fish was estimated for June through August using the Allen curve method. Biomass of substock ( <130 mm), stock ( >129 mm) and quality fish (200 mm or larger) were estimated using Proportional Stock Density to investigate population structure. The Allen curve biomass models were modified to more accurately reflect the trawl catch density data as an index of population changes in 1976 compared to 1984-86. Theoretical biomass for the substock component increased 23 fold from 1976 to 1986. Biomass of the stock sized fish was estimated as 15 times greater in 1986 compared to 1976. Quality fish biomass varied from year to year with the average for 1984-86 estimated as 14 times greater than 1976. The most apparent factor now influencing deterioration of growth and resultant quality of the population is decreased mortality/increased survival with increase in biomass. If the low mortality rates observed for 1984-86 remain unchanged, the data indicate continued population density increases will result in even lower growth rates, and a population dominated by a higher percentage of small, non-quality fish.Food habit analyses for 1984 were compared to a diet study of yellow perch in 1972 for the study area. Zooplankton increased from 0.4x in 1972 to 9% of the volume in 1984 for 100-175 mm perch. This trend may reflect an increase in zooplankton populations in response to the population decline of the planktivorous alewife. Young-of-the-year yellow perch made up 85% of the stomach volume for 176-225 mm perch in 1984 while none were found in samples for 1972. This clearly shows yellow perch are resorting to cannibalism resulting from excessive intraspecific competition.Diet analyses by month revealed alewife eggs were moat important during peak abundance in June and July. Yellow perch (YOY) and Pontocoreia affinis became important during August. Analysis by size interval showed zooplankton and insects (primarily Chironomidae) were important to the diet of perch in the 30-59 mm (YOY) size interval. Copepoda were important by percent volume until approximately 60 mm when the zooplankton component switched to Cladocera. Data for 60-119 mm (age I+) fish indicates alewife eggs were important during June but insects became increasingly more important during July and August. Diversity in food items consumed diminished with increase in size as diet of 120-159 mm (age II+) yellow perch consisted largely of fish. Increases in percent volume of rainbow smelt in June and July, and Y0Y perch in August for age II+ and older perch compared to younger/smaller fish may be related to increased capture success. Diet of fish larger than 160 mm (age III+ and older) consisted almost entirely of rainbow smelt and Y0Y yellow perch.Ball State UniversityMuncie, IN 47306

Two types of fish attractors, brush attractors made of cedar trees and Berkley and Company's Fish-Hab modules, were placed in a final cut coal mine lake and evaluated for fish concentrating effectiveness. Dives were conducted biweekly and numbers and species of fish at attractors were recorded. Data were then evaluated using Analysis of Variance tests.A total of 623 fish were recorded on attractors during the eight dives made from July 21 to October 24, 1986. Brush attractors held 485 fish or 78% of the total. Module attractors concentrated 105 fish (17%) and 33 fish (5%) were observed in the control areas. Brush attractors concentrated nearly five times as many fish as the modules and 15 times as many fish as the control area. The modules concentrated over three times as many fish as the control area. Results indicated there was no significant difference (0.05) in numbers of fish attracted by brush and modules with an Analysis of Variance With Repeated Measures test but density of individual species was not considered. Furthur analysis of attractors by date and specie over the study period using a One-Way Analysis of Variance revealed that brush attractors concentrated significantly (0.05) more fish than modules in mid to late summer, but not in the early fall. Modules were much less effective at concentrating fish and were never significantly different than the control areas.Scuba diving worked well as a method of evaluation for the attractors. Water clarity was adequate for visual observations and fish did not display a fright response or leave when the diver approached. At no time was there difficulty in identifying or counting fish greater than 10 cm.Ball State UniversityMuncie, IN 47306

Forty Sprague Dawley rats were randomly separated into one of three experimental groups: Run-Trained (RT), Swim-Trained (SW), or Control (CON). The runners were further separated into 2 groups: Good-runners (RT1), or Poor-runners (RT2) according to their performance on the treadmill. All of the trained groups were endurance trained at approximately 80% V02 max for two hours per day, five days per week in the appropriate mode of exercise. After nine weeks of equi-intensity training, the perimetrial fat pads were removed and the calls isolated. The adipocytes from the trained animals were significantly smaller in volume and diameter than the adipocytes from the controls. Adipocytes from all of the trained groups were significantly more sensitive to insulin than the CON group according to the definition by Kahn (60). The cells from the RT1 and SW groups were significantly more responsive to insulin than both the RT2 and CON groups. The adipocytes from the RT1 group were also significantly more responsive to insulin than the SW group. The differences in cell responsiveness to insulin were highly correlated to the average size of the cells studied. From the data presented in this study threeconclusions were drawn: 1) Both running and swimming at the reported intensity, duration, and frequency have a significant effect on the morphology and metabolism of the isolated adipocyte, 2) Adipocyte morphology, insulin sensitivity, and insulin responsiveness are dependent on the frequency, intensity, and duration of a given exercise training protocol, and 3) Each type of exercise training has its own drawbacks: with swimming, the rats may experience some hypoxia which may alter their metabolic fuel utilization, and during running not all of the animals may be capable or willing to complete the run.Ball State UniversityMuncie, IN 47306

Macro-operators is a problem solving technique in the field of artificial intelligence. The application of this technique depends on the generation of macro-operators. This research investigated macro-operators generation in the 15-puzzle. A method named "Iterative-Deepening Depth-First Search" and the relevant analysis were presented. A program using this method was developed in LISP. It was concluded that the performance of iterative-deepening depth-first search is much better than that of the ordinary exhaustive search methods. It was recommended that research be continued in searching for optimal macro-operators and improving the generation method.Ball State UniversityMuncie, IN 47306