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Search Results: 1 - 10 of 16277 matches for " Thiago Leandro Vieira Cavalcante "
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Etno-história e história indígena: quest?es sobre conceitos, métodos e relevancia da pesquisa
Cavalcante, Thiago Leandro Vieira;
História (S?o Paulo) , 2011, DOI: 10.1590/S0101-90742011000100017
Abstract: since the 1990s, research into indigenous history has grown both quantitatively and qualitatively in brazilian academia. nevertheless the concepts of ethnohistory and indigenous history have been frequently used imprecisely. this article discusses the concept of ethnohistory and its development. also, it discusses the interdisciplinary character of research into indigenous history and its social relevance. questions are also raised about the training of human resources for teaching, the research into indigenous history, the teaching of it in the context of basic education and the professional ethics of the researcher.
The Myth Saint Thomás american and the cultural evidence in colonial America O mito do S o Tomé americano e a circularidade cultural na América colonial
Thiago Leandro Vieira Cavalcante
Revista de História Regional , 2008,
Abstract: This article presents some cultural evidences ocurred in the situations of contact between Europeans and indians in colonial america (sec. XVI and XVII). Showing the aboriginal myths resignification who assumed apostle Thomas identity to the christian missionaries.With this incorporation the jesuits earned while successive apostolic and indians were enclosed in the christian world. Este artigo apresenta algumas evidências de circularidades culturais ocorridas nas situa es de contato entre europeus e índios na América Colonial (Séc. XVI e XVII). Destacando-se a resignifica o de mitos indígenas, que assumiram a identidade do Apóstolo Tomé para os missionários crist os. Nesse contexto os jesuítas beneficiam-se enquanto sucessores apostólicos e os índios foram incluídos no mundo crist o.
O Brasil e a reorganiza o do Sistema Interamericano
Thiago Gehre Galv?o,Leandro Freitas Couto
Meridiano 47 : Boletim de Análise de Conjuntura em Rela??es Internacionais , 2010,
Abstract: O início do século 21 brinda o papel do Brasil no repensamento das bases institucionais e ideacionais do sistema interamericano.
Equatorial F-region irregularities generated by the Rayleigh-Taylor instability mechanism: rocket observations from Brazil
Muralikrishna, Polinaya;Vieira, Leandro Paulino;
Revista Brasileira de Geofísica , 2007, DOI: 10.1590/S0102-261X2007000600016
Abstract: several sounding rockets carrying plasma diagnostic experiments were launched from the brazilian rocket launching stations in natal (5.9os, 35.2ow geog. lat.) and alcantara (2.31os, 44.4ow geog. lat.). langmuir probes (lp) were used to measure the height profiles of electron density and electron temperature and high frequency capacitance (hfc) probes were used to measure electron density. the lp's were also used to measure the amplitude of electron density fluctuations. a detailed study of the characteristic features of electron density irregularities in the scale size range of less than a meter to a few kilometres, observed by rocket-borne electron density probes under different ionospheric conditions is presented here. the main objective of these studies is the identification of these irregularities from the point of view of the dynamic and electrodynamic processes responsible for their generation. the existing theories of the rayleigh taylor instability (rti) mechanism applicable for conditions of the geomagnetic equatorial ionosphere over brazil are critically examined in the light of the observations. the observed characteristics of the irregularities during four rocket launches are compared with the theoretically expected characteristics. these results confirm the operation of a cascade process that is responsible for the generation of a wide spectrum of irregularities. the large-scale irregularities are first generated probably by the rti mechanism that creates conditions favourable for the operation of the cross-field (cfi) or the gradient drift instability (gdi) mechanism. from the k-spectra of irregularities it is possible to obtain the spectral index n corresponding to the height chosen. in most of the cases the estimated spectral indices agree well with those published in the literature for the cases of irregularities generated by the gdi mechanism.
Do local ao global: a utiliza o de tecnologias como ferramentas mediadoras do processo de aprendizagem na Geografia
Tiago Vieira Cavalcante,Juliana Felipe Farias
Revista Espa?o Acadêmico , 2010,
Abstract: O referido texto discute a necessidade e a possibilidade de relacionar o ensino de Geografia com as tecnologias, fazendo uma rela o entre os aspectos locais e os globais, através da utiliza o de computadores, som, TV, DVD e Internet, assim como também a consulta a sites e softwares que podem ser utilizados de maneira didática. é enfocado o uso dessas tecnologias como meio de avalia o na produ o de determinados materiais feitos pelos alunos. Este trabalho é destinado a todos aqueles que demonstram algum interesse pelas tecnologias e vêem a necessidade de dinamizar o ensino de Geografia através dessa ferramenta.
The development of post-graduate programs in nursing in brazil: an exploratory study
Thiago Alves Cavalcante, Octavio Muniz da Costa Vargens
Revista de Enfermagem UFPE On Line , 2010,
Abstract: Objective: to analyze the development of post-graduate programs in nursing in Brazil. Method: documentary research, exploratory, with the primary source of online database of CAPES, the ratings on the three-year master's and doctorate in Brazil. For analysis and discussion of data were used as secondary sources of articles Base in Nursing - indexed for with descriptors such as: Education, Nursing, and Education Graduate Nursing. Results: there is a perceived concentration of post-graduate programs in nursing in the south and southeast. However, with the internalization of undergraduate courses, begins a similar process with masters and doctorates, but the pace of teacher qualification has not kept pace the market demands, creating regional concentrations of doctors nurses. Conclusions: There are difficulties to meet the demands on the titration teachers to meet the growth of institutions of higher education in nursing in Brazil. There needs to be increased as the titration nursing staff and the creation of master's and doctorate, especially in regions such as north, northeast and Midwest to meet local demand. Descriptors: education; history of nursing; education, nursing, graduate; schools; post-graduate; higher education institutions; nursing.
Fruit quality and production of yellow passion fruit in soil with biofertilizer under irrigation with saline waters Qualidade física e produ o do maracujá amarelo em solo com biofertilizante irrigado com águas salinas
Thiago Jardelino Dias,Lourival Ferreira Cavalcante,Járisson Cavalcante Nunes,José Lucinio de Oliveira Freire
Semina : Ciências Agrárias , 2012,
Abstract: The culture of passion fruit presented in recent years expansion of cultivated area, driven mainly by increased domestic consumption of fresh fruit and the juice processed. The Brazil is the largest world producer and consumer of the yellow passion fruit (Passiflora edulis Sims. f. flavicarpa Deg.), but domestic production did not supply the market demand agribusiness. This work aimed to objective evaluates the effects of different electric conductivities of the irrigation water (ECiw), associated to application frequencies of bovine biofertilizer on physical quality of fruits and production of the yellow passion fruit plants. The treatments were distributed in randomized blocks with three repetitions, using the factorial design 5 x 4, referring to levels of ECiw of 0.5, 1.5, 2.5, 3.5 and 4.5 dS m-1, and four frequencies of application of the biofertilizer bovine: without bovine biofertilizer (WBB); with bovine biofertilizer applied one week before of the transplanting (1WBT); application at each interval of 90 days after transplanting (90DAT); and, bovine biofertilizer applied one week before and each interval of 90 days after transplanting (1WBT+90DAT). The increase of the saline concentration of the irrigation water provoked losses of production and physical qualities of the fruits yellow passion fruit plant, being more drastic in the superior conductivity to 2,5 dS m-1. However, reduction of the losses was verified in the treatments with them largest frequency of application of the biofertilizante, resulting in fruits with quality and compatible production with to the demands of the market to the natural and of the industrial section. A cultura do maracujazeiro apresentou nos últimos anos expans o da área cultivada, motivada, principalmente, pelo aumento do consumo interno da fruta in natura e pelo suco processado. Atualmente o Brasil é o maior produtor e consumidor mundial do maracujá amarelo (Passiflora edulis Sims. f. flavicarpa Deg.), no entanto, a produ o nacional n o supriu a demanda do mercado agroindustrial. O objetivo deste trabalho foi avaliar os efeitos de diferentes condutividades elétricas da água de irriga o (CEai), associadas às épocas de aplica o de biofertilizante, sobre a produ o e a qualidade física de frutos de maracujá amarelo. Os tratamentos foram distribuídos em arranjo fatorial 5 x 4, referentes aos valores de CEai: 0,5; 1,5; 2,5; 3,5 e 4,5 dS m-1, em quatro épocas de aplica o do biofertilizante: sem a aplica o do biofertilizante (SB); aplica o realizada uma semana antes do transplantio (1SAT); aplica o a cada 90 dias
Fourier and Wavelet Spectral Analysis of EMG Signals in 1-km Cycling Time-Trial  [PDF]
Marcelo Bigliassi, Paulo Rogério Scalassara, Thiago Ferreira Dias Kanthack, Taufik Abr?o, Antonio Carlos de Moraes, Leandro Ricardo Altimari
Applied Mathematics (AM) , 2014, DOI: 10.4236/am.2014.513181
Abstract: Frequency domain analyses in electromyographic (EMG) signals are frequently applied to assess muscle fatigue and similar variables. Moreover, Fourier-based approaches are typically used for investigating these procedures. Nonetheless, Fourier analysis assumes the signal as stationary which is unlikely during dynamic contractions. As an alternative method, wavelet-based treatments do not assume this pattern and may be considered as more appropriate for joint time-frequency domain analysis. Based on the previous statements, the purpose of the present study was to compare the application of Short-Time Fourier Transform (STFT) and Continuous Wavelet Transform (CWT) to assess muscle fatigue in dynamic exercise of a 1-km of cycling (time-trial condition). The results of this study indicated that CWT and STFT analyses have provided similar fatigue estimates (slope) (p> 0.05). However, CWT application represents lesser dispersion (p< 0.05) for vastus medialis (189.9 ± 82.1 for STFT vs 148.6 ± 60.2 for CWT) and vastus lateralis (151.6 ± 49.6 for STFT vs 103.5 ± 27.9 for CWT). In conclusion, despite the EMG signal did not change (p> 0.05) according to different methods, it is important to note that these responses seem to show greater values for CWT compared to STFT for 2 superficial muscles. Thereby, we are capable of considering CWT as a reliable and useful method to take into consideration when non-stationary or oscillating exercise models are evaluated.
Aquisi??o de dados em laboratórios de física: um método simples, fácil e de baixo custo para experimentos em mecanica
Cavalcante, Marisa Almeida;Bonizzia, Amanda;Gomes, Leandro Cesar Pereira;
Revista Brasileira de Ensino de Física , 2008, DOI: 10.1590/S1806-11172008000200011
Abstract: the main interest in the construction of a didactic system of data acquisition is to insert the computer in the physic laboratory. in this work we use the microphone entrance of the computer sound cards as an interface to measure time intervals in experiments of mechanics. the system employs light sensible sensors connected directly to mic plug-in of the sound card. the storage and sound analysis of the produced signals when the incident light in the photogate is blocked is carried through free or share softwares. because of the simplicity and low cost of this method we believe that it can represent a concrete contribution for technological diffusion in the physics teaching.
Germination Response of Ornamental Pine Seeds on a Two-Way Thermogradient Plate  [PDF]
Marcos Vieira Ferraz, Kathia Fernandes Lopes Pivetta, Hugh W. Pritchard, Tim Marks, Marcelo Vieira Ferraz, Leandro José Grava de Godoy
American Journal of Plant Sciences (AJPS) , 2018, DOI: 10.4236/ajps.2018.91002
Abstract: The objective of this study was to evaluate the effect of temperature on germination of Pinus tabuliformis Carrière seed, Pinus gerardiana Wall. ex D. Don and Pinus roxburghii Sarg. Seeds of three species were distributed in Petri dishes with 1% agar solution; for the first step it was placed on a 2-way Grant’s thermogradient plate (a bi-directional incubator) for a period of 28 days and during the second step in an incubator type B.O.D. also for 28 days with non-germinated seeds in the first step. This instrument allows an assessment of a wide regime of constant and alternating temperatures, resulting to 144 different combinations of temperature, scheduled to the temperatures 4°C - 40°C. The lighting regime was 12 hours photoperiod for the two stages of the experiment. The best temperature for the germination of P. tabuliformis was 26.2°C (minimum of 7.9°C and maximum 37.0°C) and P. roxburghii was 15.6
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