93 research outputs found

    Preparing Transformational School Leaders: An Investigation into Leadership Style

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    Since traditional principal preparation programs were scrutinized for inadequately training 21st century principals, alternative principal programs were designed to prepare principals to improve the US educational system and student achievement. One particular innovative program, the Daly Leadership Program, was collaboratively developed between the Pintler School District and the Intrepid University. The Daly Leadership Program was not only designed to balance leadership theory and practice, but also to produce transformative leaders capable of to navigating a moral dimension and promoting second order change. The purpose of this study was to investigate the leadership style of graduates from the Daly Leadership Program that were employed by the Pintler School District. First, it was determined if the program graduates identified themselves as transformative leaders or leaders who have the capacity to make second-order changes. Then it was determined if program graduates serving as school principals were perceived as transformative by the teachers on their staff. The leadership style of graduates was measured using the Multifactor Leadership Questionnaire created by Bass & Avolio to define leadership behaviors on a Full Range Leadership continuum from Laissez-Faire to Transactional to Transformational. The results revealed that Daly graduates perceived themselves to be transformative leaders at a higher rate than the national norms. Teachers who worked with program principals perceived their principals as transformative as well. However, principals perceived themselves more transformative than their teachers perceived them to be in the areas of intellectual stimulation (encourages innovative thinking), individual consideration (coaches people), and contingent reward (rewards achievement). In fact, teachers perceived their principals lower than national norms in these three factors, but higher than national norms for inspirational motivation (inspires others) and idealized influence (builds trust and acts with integrity). This study indicated that there was alignment between the goals of the program and the perceived leadership style of graduates. It also indicated that the context of formal leadership roles might impact the perceptions of principals and teachers regarding leadership style

    A dinâmica de populações microbiológicas na estabilização aeróbia de resíduos orgânicos de fecularias de mandioca

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    In the present paper, the biology of aerobic stabilization of proteinaceous wastes from starch extraction and manioc meal manufacture from "mandioca brava" roots is studied. "Mandioca brava" (Manihot esculenta) is a native plant of great economic importance in Brazil. Wastes from this manufacture have high concentration of organic matter and cyanide and so they are improper to be discharged into rivers without previous stabilization. This stabilization has been achieved successfully through oxidation ditches treatment. The main purposes to be attained with these biological studies were: 1. to know the biological composition and the microstructure of the floes obtained by aeration; 2. to determine the causes and eventually the process of correcting the bulking which often appears in these systems; 3. to know the sequence of microbiologic populations which appear during the stabilization process in order to make possible the use of microscopy to control effectiveness of the treatment. Aeration of the waste was done in the laboratory and results of the microscopic examination were compared with the data as: pH, odor, amount of sludge and relative stability as indicators of the stabilization process evolution. The following conclusions are attained: 1. The floes are formed of a biological mass where filamentous fungi and yeast cells predominate (;Fig. 2;) ; 2. These floes are loose and so, responsible for the bulking: 3. Addition of phosphorus to the system produces complete biological modification and changes the microstructure of the floes. It produces more favorable conditions to bacteria growth and a heavier floe results (;Fig. 1;, ;Fig. 2c;) ; 4. The sequence of microscopic organisms as well as their ecological relation with different steps of the process are stablished. So it was possible to recognise those steps by microscopic examination and to control the effectiveness of stabilization (;Fig. 3;).No presente trabalho foi estudada a biologia da estabilização aeróbia de resíduos da extração industrial de amido e farinhas, das raízes de «mandioca brava» (Manihot esculenta), planta nativa do Brasil e de grande importância econômica dado seu alto valor nutritivo. Os resíduos líquidos dessa extração apresentam elevado teor de matéria orgânica proteica e possuem ácido cianídrico, sendo inconveniente, por essas razões, seu lançamento aos rios sem prévia estabilização. Essa estabilização tem sido obtida, satisfatoriamente, por intermédio de instalações de valos de oxidação. Os objetivos almejados com o estudo da biologia do sistema eram, principalmente: 1. Conhecer a composição biológica e a estrutura microscópica dos flocos formados por aeração; 2. Determinar as causas e, eventualmente, o processo de correção do fenômeno do intumescimento do lôdo («bulking») que freqüentemente ocorre nessas instalações; 3. Determinar a seqüência de populações microbiológicas que se desenvolvem no decorrer do processo de estabilização, de modo a possibilitar o controle microscópico da eficiência do sistema de tratamento. Através da aeração do resíduo, em laboratório e comparando os resultados da análise microscópica com os dados que permitiam verificar a evolução do processo de estabilização, foi possível obter-se os seguintes resultados: 1. Os flocos são constituídos de uma massa biológica em que predominam fungos filamentosos (;Fig. 2;). 2. Êsses flocos, sendo pouco compactos, originam o fenômeno do intumescimento. 3. A adição de fósforo ao sistema produz modificação radical na biologia e na estrutura dos flocos, determinando predominância de bactérias, formação de flocos compactos e desaparecimento do fenômeno de intumescimento (;Fig. 1;; ;Fig. 2c;). 4. Foi estabelecida a seqüência de microrganismos bem como as suas relações de natureza ecológica com as distintas etapas na evolução do processo de estabilização de modo a permitir o reconhecimento microscópico dessas etapas e controle do funcionamento e eficiência do sistema (;Fig. 3;)

    Pesquisando as compositoras brasileiras no século XXI

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    O presente artigo foca as motivações, os resultados, a metodologia e a ut i lização da tecnologia, arquivos e fontes na construção e  desenvolvimento da pesquisa “Cartografias da canção feminina: compositoras brasileiras do século XX” desenvolvida com apoio da Fundação deAmparo à Pesquisa do Estado de São Paulo (Fapesp) no pós-doutorado em História Cultural no Departamento de História do Instituto de Filosofia e ciências Humanas da Universidade Estadual de Campinas (IFCH/Unicamp).This article focuses on the motivations, results, methodology and use of technology, archives and sources in the construction and development of the research “Cartographies of the female song: Brazilian composers of the 20th century” developed with the support of Foundation for ResearchSupport of the State of São Paulo (Fapesp) in postdoctoral studies in Cultural History in the Department of History of the Institute of Philosophy and Human Sciences of the State University of Campinas (IFCH/Unicamp)

    Tom & Rosa

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    The objective of this article is threefold. First, it attempts at analyzing the crucial role played by the popular song in shaping up Guimarães Rosa's literary project. Second, it aims at pointing out, at least partially, some of the reasons for the Brazilian popular composer's liking of Guimarães Rosa's work. The article aims specially at understanding the influence of the reading of Guimarães Rosa's work on the elegant and sophisticated music of Tom Jobim's songs - mainly on his two authorial records produced in the first half of the 1970s: Matita Perê (1973) and Urubu (1975). Last, this article advances a hypothesis: the existence of a long and venerable intertwining of links between Brazilian literature and popular songs. Because of very distinct factors, the borders between different territories which form literate tradition, written tradition, book tradition and the oral tradition of singing poetry have been systematically blurred by generations of songwriters, poets and writers who have produced a cultural repertoire typical of the country, by making the most surprising crossings between book and song, and between song and poem. At such borders a new way of identifying Brazilian culture is born. It is a poetic space in which a new form of expressing the country is produced, and also an original way of understanding Brazil: the modern popular song.Este artigo tem três objetivos. Em primeiro lugar, busca analisar o papel decisivo desempenhado pela canção popular na composição do projeto literário de Guimarães Rosa. Em segundo lugar, pretende apontar, ao menos em parte, algumas das razões que ajudam a entender a afinidade do compositor popular brasileiro com a obra de Guimarães Rosa. Em especial, o artigo procura compreender o impacto que a leitura da obra de Guimarães Rosa imprimiu na sonoridade elegante e sofisticada das composições de Tom Jobim - sobretudo, nos dois discos autorais produzidos na primeira metade da década de 1970, Matita Perê (1973) e Urubu (1975). Por último, este artigo arrisca uma hipótese: a existência de uma longa e venerável trama de vínculos entre a literatura e a canção popular brasileiras

    Visionários: a imaginação republicana nas Minas setecentistas

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    Alice Ruiz, Alzira Espindola, Tete espindola e Na Ozzetti : produção musical feminina na vanguarda paulista

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    Orientador: Luzia Margareth RagoDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Filosofia e Ciencias HumanasResumo: Esta pesquisa tem por objetivo mapear as trajetórias de vida e as produções musicais de Alice Ruiz, Alzira Espíndola, Tetê Espíndola e Ná Ozzetti, compositoras que residem atualmente em São Paulo e que participaram do momento musical denominado, pela imprensa paulistana, de ¿Vanguarda Paulista¿. Num trabalho com a memória, busca pensar como se produz a subjetividade dessas artistas; como são criadas suas canções em parcerias e como se exprimem as relações de gênero na composição musical. Também indaga sobre a dimensão feminina no fazer artístico, na tentativa de decifrar especificidades na criação poética e musical das mulheres. O trabalho se referencia pelos conceitos de genealogia, estética da existência e modos de subjetivação formulados por Michel Foucault, aproximando-os dos debates sobre as relações de gênero, em especial nas concepções de Joan W. Scott, Luce Irigaray e Rosi BraidottiAbstract: The purpose of this research is to map the life trajectories and the musical productions of Alice Ruiz, Alzira Espíndola, Tetê Espíndola and Ná Ozzetti, composers who presently live in São Paulo and that have taken part in the musical moment named ¿Vanguarda Paulista¿ by the São Paulo press. Working with the records, it seeks to discern how the subjectivity of those artists is produced, how were created their songs in partnership and how the gender relations are expressed in musical composition. It also inquires about the feminine dimension in the artistic construction, trying to guess the specificities in women¿s poetic and musical creation. The references of the dissertation are the concepts of genealogy, esthetics of the existence and subjectivation modes set forth by Michel Foucault, putting them near the discussion about the gender relations, particularly in the conceptions of Joan W. Scott, Luce Irigaray and Rosi BraidottiMestradoHistoria CulturalMestre em Históri

    The role of TP53 PRO47SER and ARG72PRO single nucleotide polymorphisms in the susceptibility to bladder cancer

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    Orientador: Laura Sterian WardTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciencias MedicasResumo: Vários estudos já investigaram a associação do polimorfismo do códon 72 de P53 (P53 Arg72Pro) a um risco aumentado para desenvolver câncer de bexiga, com resultados controversos. Aproveitando a diversidade étnica da população brasileira, nós genotipamos 94 indivíduos com câncer de bexiga (76 homens e 18 mulheres; idade 21 - 96 anos; 67 ±13 anos; 79 fumantes e 15 não fumantes), que foram cuidadosamente pareados com 159 indivíduos controle (104 homens e 55 mulheres; idade 20 - 100 anos; 65 ±21 anos; 33 fumantes e 126 não fumantes). A avaliação levou em conta exposição ambiental, fatores alimentares, história ocupacional, tabagismo, condições gerais de saúde e doenças prévias. O genótipo Arg/Pro foi menos frequente na população de pacientes e conferiu um risco 44% menor de câncer de bexiga. A análise de regressão logística univariada também identificou sexo masculino (OR = 6,87, 95% CI = 3,78 - 12,5; P =65 anos (23, 88%) do que nos com <65 anos (51,85%) (P = 0,009; P = 0,029). Todos os pacientes e controles apresentaram o tipo selvagem Pro no códon 47. Nós concluímos que P53 Arg72Pro pode não constituir fator independente, mas sim ligado à idade na susceptibilidade ao câncer vesicalAbstract: Several studies have investigated the association between P53 Arg72Pro and an increased risk of developing bladder tumors, with controversial results. Taking advantage of the high admixture rates in the Brazilian population, we genotyped 94 bladder cancer patients (76 males and 18 females; aged 21 - 96 years old; 67 ± 13 years old; 79 smokers and 15 nonsmokers) carefully paired with 159 controls (104 males and 55 females; aged 20 - 100 years old; 65 ± 21 years old; 33 smokers and 126 nonsmokers) with respect to environmental exposure, diet routine, lifetime occupational history, smoking history, general health conditions, and previous diseases. Arg/Pro genotype was under-represented in the patient population, and conferred a 44% lower risk of bladder cancer. Univariate logistic regression analysis also identified male sex (OR = 6,87, 95% CI = 3,78 -12,50; P < 0,001), age over 65 years (OR = 4,44, 95% CI = 2,56 - 7,71; P < 0,001), and smoking habits (OR = 18,61, 95% CI = 9,62 - 36,03; P < 0,001) as important risk factors for bladder cancer. However, the P53Arg72Pro genotype disappeared as a susceptibility factor both in the multivariate regression analysis and in an univariate regression analysis adjusted for gender, age, and smoking, suggesting that it was connected with one of these factors in the predisposition to bladder cancer. Indeed, a further analysis demonstrated that both alleles and genotype variants of P53Arg72Pro are less frequent in older patients (P = 0,029). All the patients and control presented the wild-type Pro genotype at codon 47. We concluded that the effect of P53Arg72Pro, described in some studies as an important risk factor, may not be an independent, but an age-related factor of susceptibility to bladder cancerDoutoradoClinica MedicaDoutor em Clínica Médic

    Pavement Thickness Evaluation by GPR Survey in Idaho

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    In 1995 and 1996, the Idaho Transportation Department (lTD) conducted a series of ground-penetrating radar (GPR) surveys as a nondestructive testing (NDT) method to evaluate the thickness of asphalt and Portland cement concrete (AC/PCC) pavements in Idaho. GPR surveys employed both air-coupled and combination air and ground coupled systems with their associated equipment and software. A total of 30 miles of AC/PCC pavements were evaluated by GPR surveys. The results obtained were correlated with the site-specific ground-truth data from borings. Knowledge of pavement layer thickness is needed to predict pavement performance, establish load carrying capacities and develop maintenance and rehabilitation priorities. In addition, for new construction, it is important to ensure that the thickness of materials being placed by the contractor is acceptably close to specification. Core sampling and test pits are destructive to the pavement system, expensive, time consuming and intrusive to traffic. The objective of the lTD study was to evaluate, compare and assess the ability of these two GPR systems to accurately measure the thickness of multiple pavement layers, and document the data nondestructively. This paper reviews the findings of these surveys and provides statistically based data for both AC and PCC pavements. The overall study has shown that reasonably accurate, dependable determination of pavement thickness can be achieved by using GPR survey for conditions encountered in Idaho

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