5 resultados para multiple reaction model
em Universidade Federal do Rio Grande do Norte(UFRN)
Resumo:
This work aims to examine the television social representation by mothers/educators as a TV viewers, to understand the meaning of this media in their quotidian and which relations occur between teachers and students in the classroom. The study purpose is the educational television rule, based on a social representation approach. It look for to reveal, through the discourses of five educators who are engaged in pedagogic activities in the Public Elementary School of the Natal city, a significant experience in the media education field progress. It’s also a way to understand which representations the educators have about the television can contribute to aid the idea and critic analysis about the media meaning in the teacher’s formation. Some questions were in the basis of the investigation as: What is the television for the educators who are also TV viewers? How it reaches the classroom? Their relation with the media interfere in the pedagogic practice? Assuming that the verbal technical is one of the formal ways to access the representations, the methodological strategy employed was the open interview, guided by a wide and flexible schedule, leaving the interviewees free to expose their ideas, a attitude adopted to avoid the imposition of interviwer’s points of view, that result in a rich material. Through this strategy it was possible to confirm or to reject presumptions raised in the beginning of the investigation and modify some planning direction lines. The study has as the theory presupposition the contribution of the Mexican researcher Guillermo Orozco Gómez, who, based on the Paulo Freire e Jesús Martín-Barbero ideas, establishes a dialogue between popular Education and the communication theories, mainly the television reception, when he develops an integral view focused on the audience or on the multiple mediations model. The school – and the family, as well – is an important mediator of the media information. The relationship which the teachers establish between the television and their representations about it in their lives reflects effectively and directly on their professional practice and on the media dialogue within the school, it can contribute to the critic reflection which students establish with the media trough the educators mediation
Resumo:
Due to environmental restrictions around the world, clean catalytic technology are of fundamental importance in the petrochemical industry and refineries. Creating the face of this a great interest in replacing the liquid acids for solid acids, so as molecular sieves have been extensively studied in reactions involving the acid catalysis to produce chemical substances with a high potential of quality. Being the activity of the catalysts involved in the reaction attributed to the acid character of them involved for the Lewis and Brönsted acid sites. Based on this context, this study aimed to prepare catalysts acids using a molecular sieve silicoalumino-phosphate (SAPO-11) synthesized in hidrotermical conditions and sulphated with sulphuric acid at different concentrations, using to it the method of controlled impregnating. The samples resulting from this process were characterized by x-ray difratometry (DRX), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), thermal analysis (TG-DTG) and determination of total acidity (by n-butilamin adsorption). The results show that the synthesis method used was efficient in the formation of AEL structure of SAPO-11 and when being incorporated the sulfate groups in this structure the acidity of the material was increased, pointing out that to very high concentrations of acid there is a trend of decrease the main peaks that form the structure. Finally they were tested catalytictly by the reaction model of conversion of m-xylene which showed favorable results of conversion for this catalyst, showing to be more selective of cracking products than isomerization, as expected, in order that for the o-xylene selectivity there was no positive change when to sulfate a sample of SAPO-11, while for light gases of C1-C4 this selectivity was remarkably observed
Resumo:
This work aims to understand how cloud computing contextualizes the IT government and decision agenda, in the light of the multiple streams model, considering the current status of public IT policies, the dynamics of the agenda setting for the area, the interface between the various institutions, and existing initiatives on the use of cloud computing in government. Therefore, a qualitative study was conducted through interviews with a group of policy makers and the other group consists of IT managers. As analysis technique, this work made use of content analysis and analysis of documents, with some results by word cloud. As regards the main results to overregulation to the area, usually scattered in various agencies of the federal government, which hinders the performance of the managers. Identified a lack of knowledge of standards, government programs, regulations and guidelines. Among these he highlighted a lack of understanding of the TI Maior Program, the lack of effectiveness of the National Broadband Plan in view of the respondents, as well as the influence of Internet Landmark as an element that can jam the advances in the use of computing cloud in the Brazilian government. Also noteworthy is the bureaucratization of the acquisition of goods to IT services, limited, in many cases, technological advances. Regarding the influence of the actors, it was not possible to identify the presence of a political entrepreneur, and it was noticed a lack of political force. Political flow was affected only by changes within the government. Fragmentation was a major factor for the theme of weakening the agenda formation. Information security was questioned by the respondents pointed out that the main limitation coupled with the lack of training of public servants. In terms of benefits, resource economy is highlighted, followed by improving efficiency. Finally, the discussion about cloud computing needs to advance within the public sphere, whereas the international experience is already far advanced, framing cloud computing as a responsible element for the improvement of processes, services and economy of public resources
Resumo:
The objective of this thesis is to understand how a certain social condition becomes relevant enough to be regarded as an issue worthy of government action and how certain proposed initiatives prevail while others are discarded. More specifically, the goal is to discuss public policy for education and check whether the analytical models employed are significant enough to explain how the literacy issue became part of the policy agenda of the government of the State of Ceará in Brazil, and how the Literacy Program at the Right Age (PAIC) developed over time. From the empirical perspective about public policy for education in Brazil, this is a relevant case when one takes into account that, historically, the literacy policies are focused on teenagers and adults, implying a lack of specific initiatives towards children at the proper age of learning to read and write. In order to understand what drove this issue to the top of the state government agenda, this thesis is primarily based on the literature about public policy analysis, with focus on the agenda setting process and development of proposals. A hybrid approach is used, combining analytical tools from Kingdon’s Multiple Streams Model (1995), the Advocacy Coalition Framework by Sabatier and Jenkins Smith (1993) and the historical new institutionalism lens. The research method is qualitative and based on the single case study method. The data set was assembled from institutional PAIC-related documents, tachygraphy notes from sessions at Ceará’s State House of Representatives, press clippings, academic studies and interviews with key participants from several organizations. The conclusion of this thesis is that, given the complexity of the case in point, the combination of the three analytical methods is adequate and necessary to understanding the multiple drivers for this issue to have entered Ceará’s state government agenda and the design of the PAIC itself. Particularly relevant are the ideas and the policy entrepreneurs, the processes of problem recognition for the composition of a wide coalition and for the specification of alternatives, and the path dependence of the education policy in Ceará. This study adds, as a result, to a better understanding of the stages that make up the agenda setting in public policy, in particular in the field of education.
Resumo:
The objective of this thesis is to understand how a certain social condition becomes relevant enough to be regarded as an issue worthy of government action and how certain proposed initiatives prevail while others are discarded. More specifically, the goal is to discuss public policy for education and check whether the analytical models employed are significant enough to explain how the literacy issue became part of the policy agenda of the government of the State of Ceará in Brazil, and how the Literacy Program at the Right Age (PAIC) developed over time. From the empirical perspective about public policy for education in Brazil, this is a relevant case when one takes into account that, historically, the literacy policies are focused on teenagers and adults, implying a lack of specific initiatives towards children at the proper age of learning to read and write. In order to understand what drove this issue to the top of the state government agenda, this thesis is primarily based on the literature about public policy analysis, with focus on the agenda setting process and development of proposals. A hybrid approach is used, combining analytical tools from Kingdon’s Multiple Streams Model (1995), the Advocacy Coalition Framework by Sabatier and Jenkins Smith (1993) and the historical new institutionalism lens. The research method is qualitative and based on the single case study method. The data set was assembled from institutional PAIC-related documents, tachygraphy notes from sessions at Ceará’s State House of Representatives, press clippings, academic studies and interviews with key participants from several organizations. The conclusion of this thesis is that, given the complexity of the case in point, the combination of the three analytical methods is adequate and necessary to understanding the multiple drivers for this issue to have entered Ceará’s state government agenda and the design of the PAIC itself. Particularly relevant are the ideas and the policy entrepreneurs, the processes of problem recognition for the composition of a wide coalition and for the specification of alternatives, and the path dependence of the education policy in Ceará. This study adds, as a result, to a better understanding of the stages that make up the agenda setting in public policy, in particular in the field of education.