25 research outputs found

    Simpósios brasileiros de educação em solos : autores, temas e paradigmas nos resumos publicados

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    Orientadora: Profa. Dra. Fabiane Machado VezzaniCoorientadores: Prof. Dr. Marcelo Ricardo de Lima, Prof. Dr. Valentim da SilvaTese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Agrárias, Programa de Pós-Graduação em Ciência do Solo. Defesa : Curitiba, 18/08/2021Inclui referênciasResumo: O presente trabalho teve o objetivo principal de identificar os educadores em solos, aintencionalidade paradigmática, as ações pedagógicas e os assuntos abordados nas intervenções da Educação em Solos. Para tanto, elegeu os resumos publicados em nove eventos dos Simpósios Brasileiros de Educação em Solos (SBES) no período entre 1994 a 2018 como fonte de dados, visto que é o evento mais importante da área. O trabalho dividiu-se em quatro capítulos a partir dos seus objetivos. O capítulo I apresentou uma revisão bibliográfica da construção histórica da educação brasileira numa ordem cronológica, abordando os principais movimentos e documentos dessa trajetória. O processo de ruptura com os atuais paradigmas da ciência e da educação fizeram parte do embasamento teórico do trabalho como um todo. A concepção da construção do conhecimento pelos sujeitos da aprendizagem por meio de um pensamento crítico, reflexivo, transformador e globalizado, permeou as discussões. O capítulo II teve como objetivo principal identificar o perfil do educador em solos e as instituições de ensino comprometidas com o tema e, assim constatar quem promove a Educação em Solos no Brasil. O capítulo III teve como objetivo identificar as ações estabelecidas e implantadas pela Educação em Solos. As ações compreendem as práticas educativas realizadas em espaços formais e não formais de educação, bem como o público a quem se quer conscientizar com a Educação em Solos. O capítulo IV teve como objetivo identificar qual o paradigma educacional que permeia a Educação em Solos na educação básica, a partir do confronto entre o paradigma tradicional e o complexo. Para tanto, foi necessário analisar se a intencionalidade do paradigma pretendido para as práticas pedagógicas da Educação em Solos, correspondem ao paradigma efetivamente aplicado nas intervenções pedagógicas, de forma a proporcionar mudanças no comportamento da sociedade frente aos solos. Conclui-se que os trabalhos publicados nos SBES demonstraram que existe um movimento de mudança de intencionalidade na Educação em Solos para o paradigma complexo. Mas a mudança de intencionalidade ainda se restringe à fundamentação teórica das intervenções, pois as práticas e ações pedagógicas retrataram uma abordagem moldada no paradigma tradicional.Abstract: The main objective of this work is to identify educators in soils, paradigmatic intentionality, pedagogical actions and issues addressed in soil education interventions. To this end, it elected the abstracts published in the Brazilian Symposiums on Soil Education (SBES, in Portuguese) as a data source, since it is the most important event in the area. The work was divided into four chapters basedon its objectives. Chapter I presented a bibliographic review of the historical construction of Brazilian education in a chronological order, addressing the main movements and documents of this trajectory. The process of rupture with the current paradigms of science and education were part of the theoretical basis of work as awhole. The conception of the construction of knowledge by the subjects of learning through a critical, reflective, transformative and globalized thought permeated the discussions. Chapter II had as main objective to identify the profile of the educator insoils and educational institutions committed to the theme and, thus, to verify who promotes Soil Education in Brazil. Chapter III aimed to identify the actions established and implemented by Soil Education. The actions comprise the educational practices carried out in formal and non-formal spaces of education, aswell as the public to whom they want to become aware with Soil Education. Chapter IV aimed to identify the educational paradigm that permeates Soil Education in basic education, from the confrontation between the traditional paradigm and the complex.Therefore, it was necessary to analyze whether the intentionality of the intended paradigm for the pedagogical practices of Soil Education correspond to the paradigm effectively applied in pedagogical interventions, in order to provide changes insociety's behavior in the face of soils. In conclusion, that the works published in theSBES demonstrate that there is a movement of intentionality change in Soil Education towards the complex paradigm. However, the change of intention is still restricted to the theoretical foundation of the interventions, as the pedagogical practices and actions demonstrate an approach molded in the traditional paradigm

    Scaffolding MATLAB and octave software comprehension through visualization

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    Multiple view interactive environments (MVIEs) provide visual resources to support the comprehension of a specific domain dataset. For any domain, different views can be selected and configured in a real time fashion to be better adjusted to the user needs. This paper focuses on the use of a MVIE called OctMiner to support the comprehension of MATLAB and GNU/Octave programs. The authors conducted a case study to characterize the use of OctMiner in the context of comprehension activities. Results provide preliminary evidence of the effectiveness of OctMiner to support the comprehension of programs written in MATLAB and Octave.info:eu-repo/semantics/acceptedVersio

    A multiple view interactive environment to support MATLAB and GNU/Octave program comprehension

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    Program comprehension plays an important role in Software Engineering. In fact, many of the software lifecycle activities depend on program comprehension. Despite the importance of MATLAB and Octave programing languages in the Engineering and Statistical communities, little attention has been paid to the conception, implementation and characterization of tools and techniques for the comprehension of programs written in these languages. Considering this scenario, this paper presents a Multiple View Interactive Environment (MVIE) called OctMiner that supports the comprehension of programs developed in the aforementioned languages. OctMiner provides a set of coordinated visual metaphors that can be adjusted in accordance with the comprehension goals. An example is presented to illustrate the main functionalities of OctMiner in a real scenario of program comprehension.info:eu-repo/semantics/acceptedVersio

    On the use of a multiple view interactive environment for MATLAB and octave program comprehension

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    WOS:000364988500049 (Nº de Acesso Web of Science)MATLAB or GNU/Octave programs can become very large and complex and therefore difficult to understand and maintain. The objective of this paper is presenting an approach to mitigate this problem, based upon a multiple view interactive environment (MVIE) called OctMiner. The latter provides visual resources to support program comprehension, namely the selection and configuration of several views to meet developers’ needs. For validation purposes, the authors conducted two case studies to characterize the use of OctMiner in the context of software comprehension activities. The results provided initial evidences of its effectiveness to support the comprehension of programs written in the aforementioned languages

    A concern visualization approach for improving MATLAB and octave program comprehension

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    The literature has pointed out the need for focusing efforts to better support comprehension of MATLAB and Octave programs. Despite being largely used in the industry and academia in the engineering domain, programs and routines written in those languages still require efforts to propose approaches and tools for its understanding. Considering the use of crosscutting concerns (CCCs) to support the comprehension of object-oriented programs, there is room of its use in the context of MATLAB and Octave programs. The literature has purpose and examples in this direction. Considering this scenario, we propose the use of visualization enriched with CCCs representation to support the comprehension of such programs. This paper discusses the use of a multiple view interactive environment called OctMiner in the context of two case studies to characterize how collected information relating to crosscutting concerns can foster the comprehension of MATLAB and GNU/Octave programs. As a result of the conducted case studies, we propose strategies based on OctMiner and tailored to support different comprehension activities of programs written in MATLAB and Octave.info:eu-repo/semantics/acceptedVersio

    GPGPU Reliability Analysis: From Applications to Large Scale Systems

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    Over the past decade, GPUs have become an integral part of mainstream high-performance computing (HPC) facilities. Since applications running on HPC systems are usually long-running, any error or failure could result in significant loss in scientific productivity and system resources. Even worse, since HPC systems face severe resilience challenges as progressing towards exascale computing, it is imperative to develop a better understanding of the reliability of GPUs. This dissertation fills this gap by providing an understanding of the effects of soft errors on the entire system and on specific applications. To understand system-level reliability, a large-scale study on GPU soft errors in the field is conducted. The occurrences of GPU soft errors are linked to several temporal and spatial features, such as specific workloads, node location, temperature, and power consumption. Further, machine learning models are proposed to predict error occurrences on GPU nodes so as to proactively and dynamically turning on/off the costly error protection mechanisms based on prediction results. To understand the effects of soft errors at the application level, an effective fault-injection framework is designed aiming to understand the reliability and resilience characteristics of GPGPU applications. This framework is effective in terms of reducing the tremendous number of fault injection locations to a manageable size while still preserving remarkable accuracy. This framework is validated with both single-bit and multi-bit fault models for various GPGPU benchmarks. Lastly, taking advantage of the proposed fault-injection framework, this dissertation develops a hierarchical approach to understanding the error resilience characteristics of GPGPU applications at kernel, CTA, and warp levels. In addition, given that some corrupted application outputs due to soft errors may be acceptable, we present a use case to show how to enable low-overhead yet reliable GPU computing for GPGPU applications
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