Últimos itens adicionados do Acervo: Universidade Tecnológica Federal do Paraná

A Universidade Tecnológica Federal do Paraná (UTFPR) é uma universidade pública mantida pelo governo federal e sua sede esta localizada na cidade de Curitiba, capital do estado brasileiro do Paraná.

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‣ Esteira eletrônica com velocidade controlada por lógica fuzzy

Ivanqui, Josmar
Fonte: Curitiba Publicador: Curitiba
Tipo: Dissertação de Mestrado Formato: 1,07 MB
Português
The aim of this work is to develop an intelligent system to speed control of a treadmill. The intelligent control system minimizes the risks of the user’s cardiac activity, allowing the maximization of the benefits that the physical activity can grant the user of this equipment. The developed intelligent controller is based on fuzzy control techniques, and has a simplified software. Besides, the developed hardware is based on cheaper and simpler electronic circuits, which allows its installation on driver kinds of treadmills existing in the market. The main characteristic of the developed equipment and that a controller adaptable is generated in agreement with the user`s profile, that is, for a group of such characteristics lite age, physical conditioning, index of corporal mass and training area recommended. The system builds a controller fuzzy automatically inside capable of maintaining the user`s heart activity of suitable safety´s strip for the doctors and / or physiotherapists, in agreement with the supplied characteristics. The developed equipment, its hardware and software, is described in full detail and the results of the tests accomplished with several users are compared to simulated values by a software dedicated to industrial control...

‣ Inferência de gramática formais livres de contexto utilizando computação evolucionária com aplicação em bioinformática

Rodrigues, Ernesto Luis Malta
Fonte: Curitiba Publicador: Curitiba
Tipo: Tese de Doutorado Formato: 842 KB
Português
Grammatical inference deals with the task of learning a classifier that can recognize a particular pattern in a set of examples. In this work, a new grammatical inference model based on a variant of Genetic Programming is proposed. In this approach, an individual is a list of structured trees representing their productions. Ordinary genetic operators are modified so as to bias the search and two new operators are proposed. The first one, called Incremental Learning, is able to recognize, based on examples, which productions are missing. The second, called Expansion is able to provide the diversity necessary to achieve convergence. In a suite of experiments performed, the proposed model successfully inferred six regular grammars and two context-free grammars: parentheses and palindromes with four letters, including the disjunct one. Results achieved were better than those obtained by recently published algorithms. Nowadays, grammatical inference has been applied to problems of recognition of biological sequences of DNA. In this work, two problems of this class were addressed: recognition of promoters and splice junction detection. In the former, the proposed model obtained results better than other published approaches. In the latter...

‣ Proposta de um modelo para análise de desempenho do escalonador WFQ alimentado com tráfego LRD

Nabas, Kleber Kendy Horikawa
Fonte: Curitiba Publicador: Curitiba
Tipo: Tese de Doutorado Formato: 2,49 MB
Português
Internal routers of telecommunication networks employ a variety of queue management and packet discarding techniques. The development of models for analyzing performance of different protocols and devices is made difficult by the self-similar nature of network traffic. Traffic self-similarity stems from the action of predominant protocols and end-to-end congestion control systems, which are key factors in determining the behavior of data flow between layers of the TCP/IP protocol stack. This thesis proposes analytical models that allow for the evaluation of a (DiffServ, IntServ, IP, Multi Protocol Label Switching etc.) network node's performance at a low computational cost. Only TCP traffic is considered, since it accounts for most of current Internet traffic and therefore exhibits self-similar characteristics. Models were developed for the WFQ scheduler with Poisson and self-similar traffic inputs. The former is based on a bi-dimensional Markov chain representing the behavior of the WFQ scheduler with two input flows with different priorities. The latter consists in two separate queues whose service rates are tuned so as to simulate the behavior of a WFQ scheduler. M[X]/M/1/B queues are used to account for the self-similar nature of traffic. As a result...

‣ MorphoMap: mapeamento automático de narrativas clínicas para uma terminologia médica

Pacheco, Edson José
Fonte: Curitiba Publicador: Curitiba
Tipo: Tese de Doutorado Formato: 5,76 MB
Português
Clinical documentation requires the representation of fine-grained descriptions of patients' history, evolution, and treatment. These descriptions are materialized in findings reports, medical orders, as well as in evolution and discharge summaries. In most clinical environments natural language is the main carrier of documentation. Written clinical jargon is commonly characterized by idiosyncratic terminology, a high frequency of highly context-dependent ambiguous expressions (especially acronyms and abbreviations). Violations of spelling and grammar rules are common. The purpose of this work is to map free text from clinical narratives to a domain ontology (SNOMED CT). To this end, natural language processing (NLP) tools will be combined with a heuristic of semantic mapping. The study uses discharge summaries from the Hospital das Clínicas de Porto Alegre, RS, Brazil. Parts of these texts are used for creating a training corpus, using manual annotation supported by active learning technology, used for the training of NLP tools that are used for the identification of parts of speech, the cleansing of "dirty" text passages. Thus it was possible to obtain relatively well-formed and unambiguous noun phrases, heuristics was implemented to semantic mapping between these noun phrases (in Portuguese) and the terms describing the SNOMED CT concepts (English and Spanish) uses the technology of morphosemantic indexing...

‣ Difusão multicomponente durante a salga mista de queijo prato

Bona, Evandro; Borsato, Dionísio; Silva, Rui Sérgio dos Santos Ferreira da; Silva, Luiz Henry M. e
Fonte: Campo Mourao Publicador: Campo Mourao
Tipo: Artigo de Revista Científica
Português
The relation between NaCl and arterial hypertension has stimulated a partial substitution for KCl on cheese. However, it is very important to guarantee an adequate proportion of NaCl/KCl, and also the homogeneous distribution of these salts, to maintain the final quality of the product. Therefore, the models that calculate the salty concentration are useful tools to control the quality. In this study an analytic resolution of Fick's 2 law, generalized for two salts, was used to simulate the salting in stationary brine. The analytic resolution, carried out through a computer program, allowed an adjustment of the diffusion coefficients and to evaluate the external resistance. The results calculated show a close comparison of the experimental values (an deviation of 2.7% to NaCl and 6.6% to KCl), validating the proposed model. The simulation can be used to adjust productivity (reducing the salting time) through the salting-time calculation for a required saltiness.; A relação entre o NaCl e a hipertensão arterial tem estimulado a sua substituição parcial por KCl em queijos. Entretanto, para manter a qualidade final do produto, é de suma importância assegurar uma proporção adequada de NaCl/KCl, bem como a distribuição homogênea destes sais. Os modelos que estimam a concentração salina...

‣ Associativismo e produção orgânica como uma alternativa para a agricultura familiar: o caso Aruatã

Vale, Arilson Pereira do
Fonte: Curitiba Publicador: Curitiba
Tipo: Dissertação de Mestrado
Português
This work assumes as its central issue the reality of agriculture, and specially the familiar agriculture, in Brazil. The analysis of this thematic begins with the identification and characterization of the technological modernization model adopted in the Brazilian context. Therefore, it seeks to understand the conception of technology and technological development that based the political and economic options and to identify the rationality embedded in the process, since every social action brings a rationality of its own. In this itinerary of investigation are especially used the concepts of " instrumental reason" technological "appropriation" and "unappropriation" and even technology. The alternative practices of organic agriculture is presented as "technologically appropriated" in the context of familiar agriculture and oriented according to the principles of a communicative reason, as defined by Jürgen Habermas. Next the text tries to bring together the theoretical concepts and the proposition that associative and cooperative practices by familiar farmers are essentials for the construction of spaces where the communicative rationality really works and where the farmers can conquest their citizenship. The theoretical frame is finally confronted with a "case study" research about an association of organic farmers from Tijucas do Sul...

‣ Educação pela ação ambiental: a coleta seletiva de resíduos sólidos em um departamento de instituição superior de ensino

Gonzalez, Carlos Eduardo Fortes
Fonte: Curitiba Publicador: Curitiba
Tipo: Dissertação de Mestrado
Português
The present study has the goal of discussing the interrelations between the premises of environmental education and the better functioning of a selective collection of solid waste. From the posed question, reviewing the historiography of the environmental education and the conceptions of selective collection of solid waste, through the review of scientific literature about both subjects, it is obtained data of the referred interrelations. The confirmation of the proposed interrelation was verified by an experiment done in one of the academic departments of the Technological Federal University of Parana, too. Thus, it was constituted in a case study, which demonstrated empirically a direct relation between the applications of environmental education and the betterment of the functioning efficiency of a selective collection system. That is, as much better the environmental education applied, more efficient is the selective collection system. The conclusions of such investigations indicate that the environmental educative processes deserve special attention by occasions of implementation and monitoring of selective collection programs, because they are essential for the good functioning of such systems. Selective collection is related to Technology...

‣ Reflexões sobre a vivência no "cantinho do notebook" em uma turma de educação infantil

Machado, Fabiana Regina
Fonte: Curitiba Publicador: Curitiba
Tipo: Dissertação de Mestrado
Português
The objective of this study was to verify if the introduction, through the teacher, of the "notebook corner" would change the context of a kindergarten classroom, looking for the changes in children's relationships. The research was supported by a socio-historical theoretical frame based on authors like Vigotski, Luria, Leontiev, Tomasello, Wertsch, Bruner and authors who gave continuity to this approach with the activity theory like Nardi, Kaptelinin, Bodker and Cole. The methodological approach was qualitative research, more specifically action research, conducted inside a classroom from a private school in Curitiba. The participants of this study were four and five year's children with previously computational knowledge belonging to a privileged social class. The methodology was action-research where the researcher was also the teacher of the classroom. The data was collected in two stages. It begins with the application of a questionnaire (pre-artifact) and participant observations (pre and post-artifact). The main results of the study showed that there was significant changes in children's relations due to the information technology as a new language to deal with and, as a result, it promoted the growth of communication and collaboration among children and the real necessity of rules allowing participants to effectively use their autonomy.; O objetivo deste estudo foi analisar as mudanças no contexto de uma sala de aula de Educação Infantil...

‣ A percepção do papel da universidade no desenvolvimento tecnológico e na inovação sob a ótica de políticas governamentais e sua prática

Soll, João Climaco Borba
Fonte: Curitiba Publicador: Curitiba
Tipo: Dissertação de Mestrado
Português
This study aims to investigate the relationship between the mechanisms provided by the Brazilian government policies to simulate technological development and innovation and the practice of the universities. From the point of view of its nature, it is an applied research. Regarding it's goal, it's exploratory research. With regard to technical procedures, it uses research literature, documentary research and field research. Two universities were selected: UTFPR (Federal Technological University of Paraná) and PUC-PR (Pontifical Catholic University-Paraná), in their campus in Curitiba-Pr where the data collection and analysis were realized. In general, the results showed that in the university-companies cooperation process, the universities can be presented in joint, revealing similarities between them. The results pointed that the public policies to encourage innovation focus on the transformation of the university as the main conductor of technological development.; O presente trabalho objetiva verificar a relação entre os mecanismos previstos em políticas de incentivo ao desenvolvimento tecnológico e à inovação e a prática nas universidades. Do ponto de vista de sua natureza trata-se de uma pesquisa aplicada. No que diz respeito ao seu objetivo adotou-se como metodologia uma pesquisa exploratória. No que se refere aos procedimentos técnicos ela utiliza pesquisa bibliográfica...

‣ A comunicação em processo: um olhar através da arte, da cultura e da tecnologia

Flores, Maria Aparecida
Fonte: Curitiba Publicador: Curitiba
Tipo: Dissertação de Mestrado
Português
This study analyze the recent processes of convergence, interaction and contribution in field of the Communication, involving culture and technology - especially digital technology. For this opted to relate the processes in field of communication and similar processes in field of art, a time that in art the movements of displacement of focus the product for process was evidences than in media. When analyzing these movements are possible to investigate as the recent possibilities of propagation to information, proportionate for digital technologies, had modified or dislocated the premises of authorship concept, and also the premises of Theories of Communication. Although the adopted concept of technology considers that it is about a cultural construction, with distance of the positions of pessimism or technological determinism, in attempt to trace a map of the printed mediated social in new forms of communication and expression of societies. With this it was verified especially that the globalization loads the paradox to promote deep abysses social, in Latin America countries, but also the possibility to provide different forms of social organization, beyond recombination's and appropriations of the proper culture. Such evidence contrasts with the fact of that in the field of the Communication the effective theories follow the mechanical model that already of the account not analyze the recent movements in communication of electronic model...

‣ Webcomics malvados: tecnologia e interação nos quadrinhos de André Dahmer

Santos, Rodrigo Otávio dos
Fonte: Curitiba Publicador: Curitiba
Tipo: Dissertação de Mestrado
Português
The purpose of the present work is to think over the relations between technology and society, more specifically regarding comics and the internet. To that end, the webcomic Malvados, whose author, André Dahmer, in part of his work think about the internet from the society's, the user's of the available online tools point of view, was researched. In the development of this research, the history of both, comics and webcomics, was presented. In addition, the caracteristics of this media and how the structure of the internet affects some of these characteristics at the same time it creates others, which exist only in the virtual world, were analysed and discussed. With this theoretical basis, the Dahmer's comics strips, particulary those reflecting the use of the internet tools by the individuals, were analysed, taking into account how the artist sees the society and its "multimediatic" reflexes.; A proposta deste trabalho é refletir a respeito das relações entre tecnologia e sociedade, mais especificamente sobre histórias em quadrinhos e internet. Para tanto foi pesquisado o webcomic Malvados, cujo autor, André Dahmer, em parte de seu trabalho pensa a internet do ponto de vista da sociedade, dos utilizadores das ferramentas disponiveis online. No desenvolvimento desta pesquisa foram apresentadas a história dos quadrinhos e também a história dos webcomics. Também foram analisadas e discutidas as características desta mídia e como a estrutura da internet afeta algumas destas características ao mesmo tempo que cria outras...

‣ Transgenética computacional aplicada a problemas de otimização combinatória com múltiplos objetivos

Almeida, Carolina Paula de
Fonte: Curitiba Publicador: Curitiba
Tipo: Tese de Doutorado
Português
The Computational Transgenetic is a metaphor for the development of evolutionary algorithms based on the theory of evolution endosymbiotic and other intracellular interactions flow. Several algorithms have been developed based on this metaphor for combinatorial optimization problems, mostly with a single objective, obtaining good results. Once the account of more than one objective provides, in general, more realistic representations of complex practical problems, this work investigates the development of Transgenetic Algorithms for multiobjective problems. Such algorithms are examined in versions that use elements of other multiobjective evolutionary algorithms such as the NSGA-II (Non-Dominated Sorting Genetic Algorithm-II) and the MOEA/D (Multi-objective Evolutionary Algorithm based on Decomposition). Therefore, this work proposes two new methods using Computational Transgenetic attached to NSGA-II and MOEA/D, named NSTA (Non-Dominated Sorting Transgenetic Algorithm) and MOTA/D (Multi-objective Transgenetic Algorithm based on Decomposition), respectively. To evaluate the proposed techniques performance, the experiments consider two NP-hard combinatorial optimization problems, in versions with more than one objective. The first problem is the Traveling Purchaser Problem and the second the Quadratic Assignment Problem. Experiments were performed with test cases available in benchmarks commonly used by other studies in the literature. The proposed algorithms' results were compared with those obtained by the multiobjetive evolutionary algorithms that inspired them. The analysis of data obtained by the computational experiment shows that the version MOTA/D is among the most efficient algorithms of the experiment with respect to the quality of the Pareto front approximation.; CNPq; A Transgenética Computacional é uma metáfora para o desenvolvimento de algoritmos evolucionários com base na teoria de evolução endossimbiótica e em outras interações do fluxo intracelular. Diversos algoritmos foram desenvolvidos com base nesta metáfora para problemas de Otimização Combinatória...

‣ Percepção dos atores do setor de software sobre a política de ciência, tecnologia, inovação e industrial dos anos 2000

Ieis, Fabiana
Fonte: Curitiba Publicador: Curitiba
Tipo: Dissertação de Mestrado
Português
This dissertation investigates what the selected actors’ perception on the formation and management of science, technology and innovation policies and industrial policies for the software industry from the 2000s. This is to identify the respondents' perception in relation to the guidelines of Science, Technology and Innovation Policies and Industrial Policies. While investigating the selected sector it is observed that there are a number of laws and policy instruments that support and benefit it, mainly, in the dimension of financing and incentive to the export, moreover, is an intensive sector in labor of higher level of knowledge, has modern environmental characteristics and requires relatively low initial investments. The software activities have been found scattered in the various economic sectors and have the potential to improve the productivity and competitiveness of these sectors in that they modernize and facilitate the organizational and productive processes by means of its products and services. To seek to understand the actors’ perception on the policy guidelines this study adopted as method the bibliographical research of qualitative character and interviews that were performed through semi-structured questionnaires in order to investigate the respondents’ perception on the process of formulation and conduct of the policies for the software industry in Brazil...

‣ Tipologias arquitetônicas e representações de segurança com abordagens na segregação espacial e nos artefatos tecnológicos

Dias, Simone Carolina
Fonte: Curitiba Publicador: Curitiba
Tipo: Dissertação de Mestrado
Português
Security is defined by some authors both as a synonym of certainty and as absence of risk and threats; security is, therefore, a representation of the world, an imaginary ideal. In order to understand the nature of the relations between public and private built environment and the representations of security, this essay presents a group of studies based on the literature from the disciplinary fields of architecture and urban planning and from interdisciplinary fields of security and technology. The gated community, an artifact and produce of urban design built upon concepts and prejudices about security has become the main object of inquiry. The first study, based on newspaper reports and news, made it possible to listen to the narratives of dwellers and of the press about gated communities and investigate how these logics interact with the representations of security and the technological artifacts in urban space. The chapter on representations of security in realtor internet advertisement pages for gated communities has allowed the study of the discourse and myths embedded within the sales pitch which influence prospective buyers. Public squares neighboring residential buildings were evaluated in a search for relationships between architectural characteristics of these public spaces and the actual occurrences of crimes; this has been achieved by means of regression and correlation studies. Users of these public squares were interviewed in regard to their ideas about security. The studies suggest that the theories about the relationship between the environment and the occurrence of crime are important tools for the planning of buildings...

‣ Processo judicial eletrônico: novos tempos para o trabalho da advocacia?

Velasco Junior, Estanislau
Fonte: Curitiba Publicador: Curitiba
Tipo: Dissertação de Mestrado
Português
This research investigates how interactions occur and the relationship between Technology and the Work of the Lawyer. The study aims to analyze the current conditions of work of advocacy from the changes brought by Judicial Process Electronic - PJE. We seek to present the quantum the PJE has conditioned the daily praxis of advocacy activity. It has as theoretical assumption that the Work and Technology does not determine human action and therefore humans free to control the facilities brought by technology which should in theory provide the improvement in the material conditions of life people. This is research from open questionnaires that allow both a qualitative analysis of the content of the written reports, as some quantification via consolidation of replies. It analyzes the transformations caused by computerization of the judicial process in your new electronic form, these changes occurred since the enactment of Law 11.419/2006 and the restructuring of the work of Brazilian advocacy in recent years. The problem we intend to answer is the following: What is the emancipatory potential of technology to the work of the lawyer? At the end of the study presents the results obtained in the research regarding: intensification of labor lawyer...

‣ Metodologia para a captura, detecção e normalização de imagens faciais

Prodossimo, Flávio das Chagas
Fonte: Curitiba Publicador: Curitiba
Tipo: Dissertação de Mestrado
Português
With the evolution of information technology Facial recognition is becoming a common task. This artifact can be used in security, controlling access to restricted places and identifying persons, for example. Facial recognition is a complex task, and it's divided into some process, comprising: facial images capture, detection of regions of interest, facial normalization, feature extraction and recognition itself. Among these, the first three are treated in this work, which has as its main objective the automatic normalization of faces. For the capture of images and for the image normalization there are international standards that standardize the procedure for implementing these tasks and which were used in this work. In addition to following these rules, other standardizations have been developed to build a database of facial images in order to assist the process of face recognition. A new methodology for normalization of profile faces, based on the rules of frontal normalization. Some ways of normalization were implemented: frontal semiautomatic, lateral semiautomatic and automatic frontal. For the execution of frontal automatic normalization we need two points of interest, the two eyes, which makes it a necessary step to execute the detection regions of interest. In this work...

‣ Desenvolvimento socioambiental do Assentamento Oito de Junho

Cezimbra, Elemar do Nascimento
Fonte: Pato Branco Publicador: Pato Branco
Tipo: Dissertação de Mestrado
Português
In Brazil there are many studies on the impacts of land reform settlements in different regions of the country. This study aims to understand the social, economic and environmental impacts of a land reform settlement, considered the second poorest region of Paraná, Cantuquiriguaçu region, located in the center south of the state and has Laranjeiras do Sul as a hub city. A re-gion considered undeveloped, so included in the development policies of the federal govern-ment as a territory of citizenship, which should make more public investment to balance the development of other regions. First a brief overview on the idea of historical development that arises after the Second World War it is made, as concern about the situation of non-development of third world countries. It is a concept formulated in rich countries, especially the United States and since this perception is articulated around a set of institutions and poli-cies to bring development to poor countries. Critical are made to this proposition and the way the development and poverty are perceive in third world countries, where theories that arise undress and show the links between development and underdevelopment or poverty or even the impossibility of development within the landmarks of the controls of imperialism...

‣ A educação superior no desenvolvimento da Guiné- Bissau: contribuições, limites e desafios

Sani, Quecoi
Fonte: Pato Branco Publicador: Pato Branco
Tipo: Dissertação de Mestrado
Português
This paper aims to present the design of an exploratory field research linked to the Graduate Program in Regional Development, of UTFPR Pato Branco Campus, near its conclusion. The research has as analysis focus the higher education in the development of Guinea-Bissau - its contributions, limitations and challenges. Formal education in Guinea-Bissau began during the Portuguese colonization, 1446 -1974, however, a very tiny number of Guineans had access to school because of the policy adopted by the colonizer which was "asleep" as possible the natives not to make them realize the exploration that the country was suffering. The colonial situation did not create opportunities for the country to be able to develop a qualified education for everybody, because for most of Guineans were denied the access to what is regarded as a fundamental value in human society. The colonizer Country invested just a little in the education for the population, in relation to other countries like England, France in its colonies as Gambia and Senegal, respectively. It is a qualitative study, since these studies reveal a dynamic relationship between the real world and the subject, that is, an indissoluble link between the objective world and the subjectivity of the subject that cannot be translated into numbers. For this...

‣ A tecnologia na literatura infantojuvenil: possibilidades de leitura em obras brasileiras contemporâneas

Bertanha, Miraní
Fonte: Curitiba Publicador: Curitiba
Tipo: Dissertação de Mestrado
Português
The research about technology and culture makes possible discussions and reflections about society and ways of life. This dissertation intents, through children's literature, to advance the discussion of technology and culture as well as to question the role historically assumed by gender. Through works of Brazilian teenager literature produced between the years 1999 and 2010, we intend to raise possible ways of manifestation of technology in contemporary production and to defend its value as a literary production. Propose the teenager literature as background for academic discussions can be rather arduous, especially because the low value granted to the gender by literary criticism. The dialogue between technology and culture, in turn, is still too little known even in the interdisciplinary field of Science, Technology and Society. As our theoretical basis we resorted to the Cultural Materialism, presented by Raymond Williams.; CAPES; A investigação das relações entre tecnologia e cultura viabiliza discussões e reflexões profundas sobre a sociedade e os modos de vida. Esta dissertação busca, por meio da literatura infanto-juvenil, avançar no debate de tecnologia e cultura, bem como questionar o papel historicamente assumido pelo gênero. Por meio de obras da literatura infantojuvenil brasileira produzidas entre os anos de 1999 e 2010...

‣ Política pública para a agricultura familiar: avaliação do programa paranaense “Fábrica do Agricultor”

Zerbato, Caio César
Fonte: Curitiba Publicador: Curitiba
Tipo: Dissertação de Mestrado
Português
Starting in the 1990s, with the legitimation of the State of family farming as a social category in rural areas, through public policies for the sector, many governmental programs have emerged to strengthen this rural development model. In the state of Paraná, in 1999, the the family farming program “Farmer's Factory” (Fábrica do Agricultor - PFA) was created with the objective of adding value to products from family farms through the vertical integration of the production of small agroindustrialization businesses. The objective of this study was to evaluate the family farming program “Farmer's Factory” (Fábrica do Agricultor - PFA). The research was conducted utilizing a descriptive approach to its goals, using techniques of bibliographical research, documentary research and surveys, which were done through structured interviews. First, the understanding of the Brazilian agrarian issue was sought, from the standpoint of small-scale family farms. Further, family farming, as well as the main strategies of social reproduction of farmers and the main theoretical and methodological aspects of public policy, were all defined through literature review. Subsequently, a bibliographical review and analysis were performed in order to achieve greater knowledge of the program (PFA)...