Classroom project: Development of a multi-media package: Head and neck anatomy

Thesis (M.Sc.)--Boston University, Henry M. Goldman School of Graduate Dentistry, 1977 (Dental Public Health).Includes bibliographical references: (leaves 6,13)

Great Lakes lake trout early mortality syndrome (EMS) : contaminants, thiamin status, and their possible interaction

The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file.Title from title screen of research.pdf file viewed on (March 1, 2007)Vita.Thesis (Ph.D.) University of Missouri-Columbia 2006.Salmonid populations in the Great Lakes experienced a decline in the early twentieth century, presumably due to over-fishing combined with the introduction of exotic parasites such as the sea lamprey. Despite intensive rehabilitation and stocking programs, today significant natural reproduction exists only in Lake Superior. Dioxin-like contaminants (i.e., PHHs) are known to cause adverse effects in early life stage lake trout, and results indicate that even the low levels currently present in Lake Michigan can result in sublethal physical lesions or behavioral alterations such as diminished C-start response. 2,3,7,8-TCDD caused significant adverse effects of both C-start behavior and feeding in rainbow trout and lake trout young. In addition to the presence of contaminants, a nutritional thiamin deficiency has been shown to cause high mortality, termed Early Mortality Syndrome (EMS), in Great Lakes swim-up fry. In the current study, fry eventually succumbing to EMS exhibited reduced embryo C-start behavior. It appears that neither the presence of PHHs nor EMS mortality can fully account for the total lack of lake trout recruitment in the lower Great Lakes. However, it is possible that an interaction between the two stressors can result in greater than expected effects on fry health and survival.Includes bibliographical reference

Word Associations and the Bilateral Electrodermal Responses of High and Low Repressive Females as Measured by the MMPI R Factor Scale

On the basis of the MMPI R Factor Scale, 16 subjects were classified as high repressed and 14 as low repressed. Subjects were compared on patterns of bilateral differences in skin conductance as a function of three cognitive tasks intended to produce specific manipulations in the relative activation of the two cerebral hemispheres. Tasks 1 and 2 examined the effects of Verbal (left hemisphere) and Spatial (right hemisphere) tasks on amplitudes of electrodermal responses. Task 3 examined the effects of the presentation of double-entendre and asexual stimulus words (designed to produce an emotional stimulus) on the high and low repressed groups. Results showed no tasks were accompanied by significant bilateral differences in electrodermal activity although high repressed subjects showed a consistent tendency toward greater amplitudes in both hands to the sexual portion of the word task. These findings are in direct contradiction to research suggesting that hemisphere activation is task dependent, but support the theoretical postulation of \u27\u27hemisphericity (the individual preference for the use of one hemisphere or the other). Subsequent to the tasks, each subject completed a Sexual Activity Questionnaire to determine categories of orgasmic or non-orgasmic. These data proved to be highly related to the personality variables of high and low repression. All subjects self-reported to be orgasmic (n = 3) scored in the low repressed group. Of 16 subjects self-reported to be non-orgasmic, 11 (69%) scored in the high repressed group. These findings argue strongly that sexual conflicts in high repressors leads to psychosomatic sexual dysfunctions as postulated by traditional psychoanalytic theory. Present findings were discussed in terms of the relationships between personality, repression, and sexual conflict and how these .variables influence electrodermal functioning. Implications for future research and theoretical complexities in the interpretation of the present results suggesting support for the hemisphericity postulation were also discussed

Artificial Intelligence: The Impact it has on American Society

The goal of this paper seeks to look at Artificial Intelligence (AI) influences and impacts on society in the United States. It focuses on the challenges and opportunities of AI, the current state of AI, where AI may advance to in the future, how far AI will go and the way people view it, the positive impact of AI on society, and the breakdown of nine ethical issues in artificial intelligence

Peggy J. Blair on Commercial Law and Human Rights edited by Stephen Bottomley and David Kinley. Burlington, VT: Ashgate, 2001. 356pp.

A review of: Commercial Law and Human Rights edited by Stephen Bottomley and David Kinley. Burlington, VT: Ashgate, 2001. 356pp

Human Resources in the South: Rural Sociology in the 1990s

This article focuses on the problem of human resources in the South during the 1980s. The author contends that the problem is especially critical in the rural South, where the impacts of widespread rural economic stress in the eighties contributed to further underdevelopment of already limited human resources. Educationally, the South not only lags other regions, but the rural South lags the urban South. Furthermore, a wide gap exists in the educational attainment of southern rural blacks and whites. It is argued that the development of an adequate human resources base in the rural South begins with building initiative and capacity at the local level to enable each community to assess its own human resource problems and initiate ways to address them. The challenge for rural leaders is to devise a mix of strategies that balance economic and human goals. Strategies for human resource development in the 1990s involving local, state, and federal governments and the role of rural sociologists are discussed

Effects of Certain Linguistic Parameters Upon the Responses of Preschool Subjects to Specific Dichotic Listening Tasks

Listening, as a communication skill, is an essential factor in the normal language development of the\u27 child. Until recently, however, there has been very little research conducted concerning the linguistic parameters that influence the ability to listen. Thus, this investigation was designed to study the effects of two linguistic parameters, construction and semantic constraints on the verbal responses of preschool children in a dichotic listening task. Fifteen children, between the ages of 5-3 to 6-8, were presented with four dichotic listening tasks consisting of 80 stimuli, (40 sentences and 40 pseudo-sentences). The children were asked to report the message delivered to their right ear. The performance of the children was analyzed according to the F-Test and the Test of Least Significant Difference. The results showed that construction errors were the only statistically significant errors (P \u3c .05) among the six types of error types counted in the listening tasks. There were fewer construction errors made when there was a meaningful message to report than when there was a non-meaningful one. Although the semantic parameters were not statistically significant in this study, other investigations have demonstrated their influence on the report of subjects in a dichotic listening task. Therefore, a future research project should be conducted placing a greater emphasis on the semantic parameters. Additionally, a three level listening hierarchy was found. It was based upon the number of construction errors that occurred among the four dichotic listening tasks. This writer feels that future research should pursue the question of an existing hierarchy among dichotic listening tasks. Such an investigation, however, should utilize a larger population than the population tested in this study

The relationship of feeder calf size and shape to rumen characteristics

Thirty days before they were marketed, feeder calves were measured, sampled and allotted to preconditioning or market-management systems at the farms of Tennessee and Kentucky feeder-calf producers during each fall marketing season (1977-1978). Body measurements were weight (WT). height (HT), length (LEN). depth (DP), width (WD) and fat thickness over the 12th rib (BF). Rumen samples were taken by the tube method from intact steers and volatile fatty acids (VFA), protozoa concentrations and pH were determined. Rumen liquid volume and in vitro gas producing potential of the fluid (GPP) were estimated. Principal component indices describing general calf size (SIZE) and calf shape (SHAPE) were calculated. Calves from two farms were used to study the relationship of SIZE and SHAPE to rumen function at FO before weaning. Rumen volume was correlated with WT, WD, HT, DP and SIZE. Acetate was related (P\u3c.01) to WT and BF. Depth and HT were the only individual body measurements that explained a large portion of the variation in protozoal concentration. Acetate and total VFA increased linearly (P\u3c.10) as SIZE increased. Similar trends were observed for acetate, butyrate and higher VFA. The relationship of acetate and total VFA to SHAPE was curvilinear. Similar curvilinear trends were observed in the relationship of Spirotricha and total protozoal concentrations with SHAPE. At FO the calves were randomly assigned to one of the three following market-management systems: 1) weaning and feeding a concentrate diet during the last 30 days before marketing and feeding hay at the orderbuyer barn (PW) and 2) allowing the calves to graze pasture with their dams during this period and feeding hay (NI) or a 50% concentrate diet at the orderbuyer barn (HE). Rumen characteristics were measured at the beginning and end of the market phase. In general, calf size was related to changes in the total rumen protozoal concentration and to changes in protozoa subclass and genera populations. Calf shape was generally related to changes in volatile fatty acid concentrations. The changes in VFA concentrations were generally smallest in PW calves and the relationship of these changes to shape was greatest in HE calves. The relationship of protozoal changes to shape was more varied among the three groups (NI, HE, and PW calves) and were more difficult to explain than the relationship with size. Significant relationships of calf size and shape to change in rumen characteristics of weanling calves and changes in rumen characteristics during market were observed. This relation ship was affected by market-management or preconditioning system to which the calves were subjected. In general, VFA concentrations and market changes were related to calf size and protozoal concentrations and market changes were related to calf shape