Thesis--Groningen. / "Geschriften van Allard Pierson": p. [482]-494. Includes bibliographical references and index.

Ambient noise generated by surface random processes is the primary contribution to the noise-field energy in the intermediate frequency band, and thus is important in many applications of underwater sound. In this study, the noise field is analyzed with respect to the effects of random source spectrum, waveguide structure of the water column, and seabed stratification upon the noise-field intensity as well as spatial correlation. Based upon a noise-generation model due to continuous random sources, incorporating several analytical models for seabed stratification, a formulation may then be derived to facilitate the numerical implementation. Many results shall be generated and analyzed. In this study considers the noise field generated by surface random processes in an oceanic environment with a sediment layer possessing a continuously varying density and sound-speed profile. This model closely resembles the oceanic waveguide environment and therefore enables the simulation of surface noise generation. Many results of the noise field were generated, including the noise intensity distribution, vertical and horizontal correlations. It is demonstrated that the noise intensity may be affected by the stratification mainly through the continuous spectrum, in that the continuous spectrum is equally important as the normal modes in the present analysis. Moreover, the results for the correlations show that the noise field in the horizontal direction becomes more coherent when the noise sources are more correlated, while in the vertical direction, the results tend to reverse. The horizontal correlations of the noise field due to surface random sources with non-isotropic power spectrum, such as nonisotropic Gaussian and Pierson-Moskowitz, were generated and analyzed.

Thesis (S.T.B.)--Biblical Seminary in New York, 1948. / Includes bibliographical references (leaf 57).

O tema da investigação trata da presença estrangeira no desenvolvimento das Ciências Sociais no Brasil, entre as décadas de 1930 e 1950 tendo como fio condutor a atuação profissional e intelectual de Donald Pierson nos Estados Unidos e em dois momentos no Brasil, durante o desenvolvimento de sua pesquisa sobre relações raciais na Bahia e o período de atuação como professor na Escola Livre de Sociologia e Política de São Paulo. Esta pesquisa é desenvolvida no interior da área de história das ciências sociais com foco no momento de institucionalização das universidades brasileiras e projetos de instituições estrangeiras como a Fundação Rockefeller e a Smithsonian Institution. / The theme of this research is the foreign presence in the development of the Social Sciences in Brazil, between the decades of 1930 and 1950, having as guide line the professional performance and intellectual production of Donald Pierson in the United States and Brazil, between the development of his research on racial relation in Bahia and the period of his work as professor at the Free School of Sociology and Political Science of São Paulo. This research is developed within the area of Social Sciences History, and the focus is the moment of institutionalization of the Brazilian Universities and projects of foreign institutions such as Rockefeller Foundation and Smithsonian Institution.

Thesis (M.B.A.)--University of Hong Kong, 1989.

O tema da investigação trata da presença estrangeira no desenvolvimento das Ciências Sociais no Brasil, entre as décadas de 1930 e 1950 tendo como fio condutor a atuação profissional e intelectual de Donald Pierson nos Estados Unidos e em dois momentos no Brasil, durante o desenvolvimento de sua pesquisa sobre relações raciais na Bahia e o período de atuação como professor na Escola Livre de Sociologia e Política de São Paulo. Esta pesquisa é desenvolvida no interior da área de história das ciências sociais com foco no momento de institucionalização das universidades brasileiras e projetos de instituições estrangeiras como a Fundação Rockefeller e a Smithsonian Institution. / The theme of this research is the foreign presence in the development of the Social Sciences in Brazil, between the decades of 1930 and 1950, having as guide line the professional performance and intellectual production of Donald Pierson in the United States and Brazil, between the development of his research on racial relation in Bahia and the period of his work as professor at the Free School of Sociology and Political Science of São Paulo. This research is developed within the area of Social Sciences History, and the focus is the moment of institutionalization of the Brazilian Universities and projects of foreign institutions such as Rockefeller Foundation and Smithsonian Institution.

Thesis (Ph. D.)--Bob Jones University, 1998. / Includes bibliographical references (leaves 264-292).

Thesis (Ph. D.)--Bob Jones University, 1998. / Includes bibliographical references (leaves 264-292).

Thesis (Ph. D.)--Bob Jones University, 1998. / Includes bibliographical references (leaves 264-292).

Made available in DSpace on 2014-06-11T19:26:20Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-03-16Bitstream added on 2014-06-13T19:34:02Z : No. of bitstreams: 1 guimaraes_rem_me_arafcl.pdf: 529549 bytes, checksum: 8b55be6c961b3793ec34b0e4cdff456d (MD5) / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / A contribuição de Donald Pierson (1900 – 1995) para as Ciências Sociais brasileiras foi significativa, pois o cientista social formado pela Escola Sociológica de Chicago combinou teoria e pesquisa na formação da primeira geração de cientistas sociais profissionais do Brasil. A partir de sua chegada à Escola Livre de Sociologia e Política de São Paulo (ELSP) em 1939, Donald Pierson trabalhou para o desenvolvimento da disciplina no país através de uma série de iniciativas que fundamentaram teoricamente futuras pesquisas empíricas, como por exemplo: coordenação de um Seminário de “Técnicas em Pesquisa Social”; tradução para o português e publicação de bibliografia específica em Ciências Sociais, em sua maioria de origem norte-americana; criação e coordenação de uma divisão de estudos pósgraduados em 1941 – a primeira do gênero na América Latina; pronunciamento de conferências públicas por centros de ensino no Brasil, dentre outras iniciativas pioneiras. Em seguida, coordenou dois amplos projetos de pesquisa empírica, denominados estudos de comunidade. Estes estudos – o de Cruz das Almas (1951) e o do O Homem no Vale do São Francisco (1972) – podem ser considerados o final do ciclo do professor norte-americano na ELSP, pois consolidaram a formação no campo de pesquisa da primeira geração de cientistas sociais profissionais do Brasil, cuja teoria havia sido transmitida em sala de aula a partir de uma série de iniciativas, algumas delas acima mencionadas / Donald Pierson's (1900 – 1995) contribution to the Brazilian Social Sciences was significant since the social scientist formed by the Sociological School of Chicago has combined theory and research on the formation of the first generation of professional social scientists in Brazil. After his arrival at the Escola Livre de Sociologia e Política de São Paulo (ELSP) in 1939, Donald Pierson worked for the development of the discipline in the country through a series of initiatives that substantiate theoretically future empirical research, such as: coordination of a Seminar on Techniques of Social Research; translation into Portuguese and publication of specific literature in Social Sciences, mostly of American origin; creation and coordination of a division of postgraduate studies in 1941 – the first of its kind in Latin America; pronouncement of public lectures in teaching centers in Brazil, among other pioneer initiatives. Then, two large empirical research projects were coordinated, called community studies. These studies – Cruz das Almas (1951) and O Homem no Vale do São Francisco (1972) – can be considered the end of a cycle of the American teacher in the ELSP, since consolidated the training into the research field of the first generation of professional social scientists in Brazil, whose theory had been transmitted in the classroom from a series of initiatives, some of them mentioned above