Alexandria Luria's approach to neuropsychological assessment and his theory of brain functioning have been exploited in order to develop a neuropsychological evaluation procedure for children which incorporates a conceptualization of brain-behaviour development. Luria's Neuropsychological Investigation for adults was administered to intact children aged eight to 14 years in order to ascertain which tasks were beyond their capabilities. These were then adapted or deleted. The adapted version of the protocol was then administered to a second group of intact children to determine that the proposed adaptations were appropriate. This process was guided by the results of a statistical analysis which revealed significant findings with respect to age, socioeconomic status, and task performance. A model of brain-behaviour development and interpretive protocol were devised. Together these provide a conceptual and interpretive framework for the battery. Developmental trends which emerged whilst developing Luria's Neuropsychological Investigation for Children (LNI-C) were consistent with the progressive development of successively more complex forms of information processing as depicted in this model. They were also in keeping with prominent developmental theories such as those of Piaget and Vygotsky. These trends revealed that children made most mistakes on adult LNI tasks involving abstract reasoning, the simultaneous synthesis of data, and complex goal-directed behaviour - all of which apparently reflect tertiary cortical zone functioning. Fewer mistakes were related to a lack of training and inability to process the same quantity of information as adults - difficulties which seemed related to secondary zone functioning. None of the mistakes made appeared to reflect subcortical or primary zone functioning. The LNI-C was applied to brain-damaged children who had had a CT scan in order to demonstrate its application and the hypothetico-deductive process of interpreting findings using the concepts of syndrome analysis and double dissociation. The LNI-C findings were consistent with the general pattern of symptoms Luria described for different brain disorders and lesion localities in children, although additional insight into the nature of the sequelae present was gained in each case. In early brain damage, the most frequent disturbances were a disruption in the role played by executive functions and the ability to process data simultaneously - both of which are associated with the tertiary zones of the brain. Furthermore, these disturbances appeared to be important factors underlying disturbances to language and educationally acquired skills. The qualitative, process-orientated nature of the LNI-C proved effective for identifying the factors underlying disturbances described in paramedical reports. These seemed to be the linchpins on which retraining should focus. It was argued that the CT scan was limited in its ability to identify the type of diffuse and/or multifocal brain pathology frequently found in children. The usefulness of the model of brain-behaviour ontogeny and interpretive protocol for diagnosis, understanding and predicting the developmental consequences of childhood brain pathology was demonstrated on the basis of nine brain disorders. Finally, areas of future research were highlighted by the study. / Thesis (Ph.D.)-University of Natal, Durban, 1989.

Employing a wide range of theoretical and methodological tools, practitioners within an array of disciplines have attempted to gain new understanding about the structural changes in the agricultural system in the United States and around the world. From Agricultural Economists to Sociologists, quantitative and qualitative research has attempted to shed light on structural change in agriculture and its implications for the real lives of farmers, their families, and consumers of their goods. The current research adopts a comparative-historical approach to examining the particular affects of structural change in six counties in central Nebraska. The general theoretical frame on which this project is based is Human Ecology, as developed by Robert E. Park. It examines the importance of four environmental orders, the natural-biological, the economic, the political, and the moral-cultural. In order to ameliorate some perceived problems with Park’s stance, including a level of rigidity, his model is modified through the use of the Marxian concept of “overdetermination,” which recognizes the complex relations among a range of social processes. Overdetermination is defined in terms of the recognition of the mutually constitutive nature of all social processes, with the character of each process determined by its relationships with all other social processes. Results suggest a very complex reality in which farmers and their families live in the 21st century. Relations were found among factors and processes both within and between Park’s environmental orders. Farm families have developed and deployed a wide range of strategies in response to structural change within each of the environmental orders. For example, some farmers invest in technology as a means to remain more competitive. Others choose production types that are more labor-intensive and less technologically based. Some farm family members seek off-farm employment or become involved in local political processes while others are involved in civic or religious organizations as a means of coping with the changes they have experienced. Social and geographic isolation impact the strategies adopted, as do natural conditions and processes, such as dominant soil type. Ultimately, this project, while it reveals a wealth of information, also raises many questions that can only be answered by the farm families themselves.

Thesis (Ph.D.)--University of Nebraska-Lincoln, 2007. / Title from title screen (site viewed Nov. 9, 2007). PDF text: ca. 220 p. UMI publication number: AAT 3263485. Includes bibliographical references. Also available in microfilm and microfiche formats.

Thesis (D. Min.)--Midwestern Baptist Theological Seminary, 2007. / Abstract. Includes bibliographical references (leaves 247-255).

Thesis (D. Min.)--Midwestern Baptist Theological Seminary, 2007. / Abstract. Includes bibliographical references (leaves 247-255).

Thesis (Psy. D.)--Wheaton College Graduate School, Wheaton, IL, 2002. / Abstract. Includes bibliographical references (leaves 86-89).

Thesis (D. Min.)--Midwestern Baptist Theological Seminary, 2008. / Abstract. Description based on Microfiche version record. Includes bibliographical references (leaves 205-210).

Thesis (Psy. D.)--Wheaton College Graduate School, Wheaton, IL, 2002. / Abstract. Includes bibliographical references (leaves 86-89).

abstract: The term "White flight" and its effects are well documented in large urban city centers. However, few studies consider the same effects on smaller American communities. This case study investigates Lexington, Nebraska, a rural community of approximately 10,000 citizens, that has experienced a population influx of minorities in the last 25 years. The population shift has increased the representation of Hispanic, Asian, and now Somali students in the Lexington Public School system, which, in turn, has been accompanied by a dramatic decrease in White, Anglo students. This study attempts to identify and describe the reasons for the exodus of White students from the public school setting. Possible reasons that might explain the decreases in White student enrollment may include overcrowding in schools, unsafe school environments, and/or less one-on-one attention with classroom teachers. / Dissertation/Thesis / Ed.D. Educational Leadership and Policy Studies 2011

Master of Science / Department of Horticulture and Natural Resources / Charles J. Barden / Windbreaks were originally promoted across the Great Plains region of the U.S to reduce wind erosion in general. A review paper published nearly 30 years ago showed yield increases for a variety of crops associated with windbreaks. However, with the widespread use of no-till systems in all farming and advanced crop genetics, the question is “Do windbreaks still provide a yield benefit?” This study compared multiple years of data from protected and unprotected fields across Kansas and few sites in Nebraska looking at relative crop yield differences of five crops: soybeans, wheat, corn, sorghum and sunflowers. Georeferenced data already existed, generated by automated combine yield monitors, and stored on farmer's computers. There were three sets of data collected for each field. The first level is general field level information, using aerial photography and on-site observations to measure the characteristics of the windbreak (length, height and density). The second was from the yield monitor; this data was analyzed with ArcGIS 10.3.1 to visualize windbreak interaction with crop yield. Multiple means comparisons (protected versus unprotected) through two sample T-tests were conducted to determine if the yield in protected areas of fields was significantly different from the yield in unprotected areas. The third data-layer is climate data that was factored into yield analysis to compare wet, normal and dry growing seasons through a Chi-Square 2x2 test analysis. Optical density of windbreaks from leaf-on/off ground-based photos was assessed using SigmaScan Pro 5.0 software as possibly an important factor influencing the windbreak effect. Finally, the yield loss was estimated from the windbreak footprint to see if yield increases are enough to compensate for the area taken out of crop production. Results showed that soybeans (81 crop/years) had the most positive response to windbreak effect with a yield increase 46% of the time, with a 16% average yield increase. Sorghum (31 crop/years) had the highest average yield increase with 25%. Narrow windbreaks (1 to 2 tree rows with an average of 52 ft. width) and those on the north edge of fields resulted in yield increases which compensated for the footprint of the windbreak more often than wider windbreaks on the south edges of fields. Significant yield increases were less than the decreases in the protected area. There was no evidence to show the windbreak effect on yield had any association with critical month precipitation for any crop or orientation group. According to the results obtained, modern hybrids and varieties are possibly less responsive to yield increases due to windbreak effect than older crop varieties. Future studies should collect more data from fields with different windbreak widths distributed more widely across the region to confirm these results. Overall, this project updated our knowledge of windbreak/crop yield interactions and may possibly influence their future role as a conservation practice in the Great Plains.