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A survey of the personal, pupils, facilities and financial support of Lee County, Alabama schools from 1955-1955, 1956
Get PDFThe participation of the negro in the municipal politics of the city of Atlanta, 1967-1908, 1955
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Partial ordering and topologies on finite sets, 1971
Get PDFA topological space is a I4 -space if and only if for each pair x and y of distinct points, there is an open set containing one of the points and not the other. There is a connection between T -topologies and partial orderings on finite sets. The relation matrix corresponds to a topology on S, a finite set
Monoclonal antibodies produced against isoelectrically focused nocardia asteroides proteins and characterized by the immunoelectro-transfer blot technique, 1984
Get PDFNocardiosis is one of the most difficult bronchiopulmonary infection to diagnose because of its close morphological, physiological and antigenic resemblance as well as its coexistence with other bacteria which cause chronic pulmonary diseases, especially Mycobacterium tuberculosis. The objective of this work is to apply improved techniques to the delineation of the antigenic specificity of Nocardia asteroides which may provide early diagnosis to detect specific antibodies in the sera of nocardiosis patients. Nocardia asteroides B1042 was grown in modified Sauton's medium in liquid shake culture at 35C for 4 and 6 weeks. Culture filtrates (CF) and homogenates (H) were prepared and concentrated. The protein content of the CF and H was estimated. Rabbits were immunized with the CF and H antigens in incomplete Freund Adjuvant. These antigens were analyzed by Immunoelectrophoresis (IEP), isoelectric focusing (IEF) and an immunoelectro-transfer blot technique modified for use with pH gradient polyacrylamide gels. Rabbit antisera to the CF and H antigens demonstrated consistency in antibody production with the maximum number of precipitin arcs observed after 8 to 12 weeks of immunization. The isofocused patterns of the CF and H proteins were similar with only quantitative differences in the respective components. An exception was that one band at 3.5 pH was present in the CF, but not in the H antigenic complex. Each pattern revealed at least 20 protein components having isoelectric points (pis) in the range of pi 4.0 to 5.4. The modified immunoelectro-transfer blot technique was optimized and combined with the sensitivity afforded by enzyme immunoassay (EIA). These combined techniques showed that most of the proteins of the isofocused patterns reacted as antigens against rabbit antisera, and at least 8 of them also reacted with sera from nocardiosis and tuberculosis patients. A specific antigen with a pi 4.68 reacted with 47% of the sera from nocardiosis cases and not with those from tuberculosis patients. Three monoclonal antibodies (MAbs) directed against three of these anti-genic factors (1,6 and 8), located at pis 4.0, 4.43 and 4.68 respectively, were produced. Two of these MAbs showed specificity to Nocardia because they did not react with the typical Mycobacterium tuberculosis sonicated cell extract. The potential use of these MAbs will facilitate the further evaluation of specific IN. asteroides antigens and may even provide a rapid serological test for nocardiosis
Numerical solution of linear integral equations with random forcing terms, 1987
Get PDFIn Chapter one of this report we define Fredholm integral equations of the second kind, Volterra integral equations of the second kind and differentiate between the two of them and explain why integral equations are important. In Chapter two we discuss numerical procedures to integral equations. The equations we used in this report are of two types: (1) Fredholm equations and (2) Volterra equations. The methods we used for Fredholm equations are: (i) Simpson's rule, (ii) Trapezoidal rule, (iii) Weddle's rule, (iv) the Collocation method, and (iv) the Galerkin method. For Volterra equations we used the successive approximation method with (i) Simpson's rule, (ii) Trapezoidal rule and (iii) Weddle's rule to evaluate the integrals. In both Fredholm and Volterra integral equations we have the forcing term to be random. Our simulation results are presented in tables and graphs
An evaluative study of the health program of the Fairmount Elementary School, Newnan, Georgia, 1963-1964, 1964
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The fugitive slave act of 1850 and the development of African enclaves in the cities of St. Catharines, Hamilton, and Toronto, Canada West, 1850-1861, 1993
Get PDFThe most far-reaching tenet of the Missouri Compromise of 1850 was the passage of the Fugitive Slave Act which propelled thousands of Africans, both free and fugitive, to the refuge of British North America most specifically to Canada West. Scholarship on the terminus of this mass flight remains generic. Specific research based on the testimonies of the African men and women that lived outside the isolation of independent, short-lived settlements is overdue. It is necessary to examine the African experience in the enclaves of Canada West's urban centres. This study illuminates one of the periods most important to the history of Africans in Canada, raises awareness of the ties that exist between Africans in Canada and the United States, and approaches a philosophy that depicts the movement of African peoples as continental, rather than simply national
An analysis of the differences in the expressed attitudes of elementary, middle and high school teachers and support staff toward mainstreaming, 1985
Get PDFPurpose The study was designed to determine if there is a significant difference in the expressed attitudes of elementary, middle and high school regular education teachers and support staff toward mainstreaming and to determine if there were particular variables impacting attitudes. Five null hypotheses were tested. Method A descriptive survey method was used in this study. The data were collected utilizing the Mainstreaming Questionnaire, developed by Schmelkin, (1981). A total of ninety-two subjects were involved in this study. The subject population consisted of elementary, middle and high school teachers and support staff and inferential statistics were used to analyze the differences in the subjects' scores. Statistical significance was measured at the .05 level of probability. Findings The findings of this study reveal that there is a significant difference in the expressed attitudes of regular education teachers and support staff which is influenced by the type of school in which they are working. The findings also showed that there is no statistically significant difference in the attitudes of the groups based on exposure to handicapped students, years of experience, certification level and previous training in Special Education. 1^)1 i cations The following implications were drawn as a result of the findings and conclusions of this study: 1. Certain factors impact upon one's attitude toward mainstreaming handicapped students. 2. Certification level does not affect attitude. 3. Years of experience do no affect attitude. 4. Continued attention should be given to exposure and training as variables impacting attitudes. Conclusions The findings in this study are as follows: 1. Regular education teachers and support staff's attitudes are positive regarding the impact of mainstreaming on the academic program and progress of handicapped and normal students: however, the subjects reveal negative attitudes regarding the impact of main- streaming on socio-emotional development of the handicapped student. 2. Elementary, middle and high school regular education teachers and support staff do differ in the attitudes expressed toward main- streaming. The greatest variation in attitude is at the high school level. 3. Exposure to handicapped students has some influence on the attitudes of regular education teachers and support staff. Increased exposure to the handicapped students by regular education teachers and support staff has some influence on their attitudes toward mainstreaming. A different definition of exposure and a large sample may yield significant findings in this area. 4. The influence of training on attitudes may be dependent upon its type and the school level in which the subject is working. 5. Findings further indicate that there is no significant difference in the attitude of regular education teachers and support staff based upon certification level. 6. Teaching experience may have some influence on the attitudes of regular education teachers and support staff; however, significant findings were not reported. Reconmendations The findings, conclusions and implications gave rise to the following recommendations: 1. Additional studies which assess regular education teachers and support staff's attitudes utilizing a larger population toward mainstreaming should be conducted in view of the findings of this study. 2. This study should be replicated using additional variables such as grade level of regular education teachers. 3. Additional research which focuses on the exposure to handicapped students as a variable affecting attitude is warranted. 4. Similarly, further research is recommended which relates to the influence of training on attitude of teachers. 5. The findings of this study should be disseminated to school systems, research journals, and parties involved in mainstreaming handicapped students into regular classes. 6. Specific inservice training should be provided to increase positiveness toward socio-emotional costs of mainstreaming handicapped students