1,520 research outputs found
Humanização: aproximações conceituais entre Freire e Ciampa
No full textThis article aimed to analyze the possible approximations between the founding categories of Freire's and Ciampa's thoughts on humanization, starting from the identification of each author's reference works, describing the founding categories of their thoughts in their respective works referenced, with a view to producing an analysis that would favor the creation of conceptual approaches to these categories. This is, therefore, a bibliographical review study that started from the analysis of four Freirean works: Pedagogy of the Oppressed (2005), Pedagogy of Autonomy (2020), Pedagogy of Indignation (2019) and Pedagogy of Possible Dreams (2001), as well as the reference work by Ciampa (2005), entitled Severino's storye and History of Severina and other articles and texts that make up collaborative works (1997, 1999, 2002, 2003). At the end of this study, it can be concluded that there are directly possible approximations between Freire and Ciampa's categories, so that both adopt the same categories to base their humanizing studies, such as humanization, movement and transformation, autonomy and dream, among others. On the other hand, for other categories considered humanizing, approaches were only possible after a more detailed analysis, as in the case of Liberation (Freire) and Metamorphosis-Emancipation (Ciampa), Praxis (Freire) and Political Action (Ciampa), Consciousness (Freire) and Consciousness-of-self (Ciampa), Dialogue and Self-recognition.Este artículo tuvo como objetivo analizar las posibles aproximaciones entre las categorías fundacionales del pensamiento de Freire y Ciampa sobre la humanización, a partir de la identificación de las obras de referencia de cada autor, describiendo las categorías fundacionales de su pensamiento en sus respectivas obras referenciadas con miras a producir un análisis que favorezca la creación de aproximaciones conceptuales a estas categorías. Se trata, pues, de un estudio de revisión bibliográfica que partió del análisis de cuatro obras freireanas: Pedagogía del Oprimido (2005), Pedagogía de la Autonomía (2020), Pedagogía de la Indignación (2019) y Pedagogía de los Sonhos Possíveis (2001), así como la obra de referencia de Ciampa (2005), titulada A estória do Severino e a História da Severina y otros artículos y textos que integran trabajos colaborativos (1997, 1999, 2002, 2003). Al final de este estudio, se puede concluir que existen aproximaciones directamente posibles entre las categorías de Freire y Ciampa, de modo que ambos adoptan las mismas categorías para fundamentar sus estudios humanizadores, tales como humanización, movimiento y transformación, autonomía y sueño, entre otras. . En cambio, para otras categorías consideradas humanizadoras, los abordajes sólo fueron posibles después de un análisis más detallado, como en el caso de Liberación (Freire) y Metamorfosis-Emancipación (Ciampa), Praxis (Freire) y Acción Política (Ciampa), Conciencia. (Freire) y Conciencia de sí (Ciampa), Diálogo y Autoreconocimiento.O presente artigo objetiva analisar as aproximações possíveis entre as categorias fundantes do pensamento de Freire e de Ciampa sobre a humanização, partindo da identificação das obras de referência de cada autor para descrever as categorias fundantes de seus pensamentos. Interessa-nos a produção de uma análise que favoreça a tessitura de aproximações conceituais dessas categorias. Trata-se, portanto, de um estudo de revisão bibliográfica que analisou quatro obras freireanas: Pedagogia do Oprimido (2005), Pedagogia da Autonomia (2020), Pedagogia da Indignação (2019) e Pedagogia dos Sonhos Possíveis (2001), assim como da obra de referência de Ciampa, intitulada A Estória do Severino e a História da Severina (2005) e de outros artigos e textos que compõem obras colaborativas (1997, 1999, 2002, 2003). Ao final deste estudo, pode-se concluir que há aproximações possíveis entre as categoriais de Freire e Ciampa; ambos adotam as mesmas categorias para fundamentar seus estudos humanizadores, tais como, humanização, movimento e transformação, autonomia e sonho, dentre outras. Por outro lado, para outras categorias consideradas humanizadoras, as aproximações só foram possíveis após uma análise mais minuciosa, como no caso da Libertação (Freire) e Metamorfose-Emancipação (Ciampa), Práxis (Freire) e Ação Política (Ciampa), Consciência (Freire) e Consciência-de-si (Ciampa), Diálogo e Autorreconhecimento
Phononic crystal sensing devices for enhanced nonlinear ultrasonic inspection
No full textNonlinear ultrasonic methods have proven to be far more sensitive than conventional linear ultrasounds to early detection of damage such as micro- or partially closed cracks, by measuring small nonlinear ultrasonic waves generated by the defect. However, the efficiency of nonlinear ultrasonic testing and their large-scale use in industrial applications is still limited by undesired instrumentation effects caused by high-power ultrasonic signal transmission, which may mask nonlinear ultrasonic waves and prevent damage detection. This paper aims to overcome the challenge of accurate detection of nonlinear ultrasonic signals by designing and developing new portable and compact phononic crystal (PC) waveguide transducers, which enhance the performance of nonlinear ultrasonic methods by achieving unprecedented sensitivity and reliability. These innovative PC sensing devices are material-based tunable filters that allow natural propagation of nonlinear ultrasonic waves and suppression of undesired instrumentation effects. PC waveguide transducers can be integrated directly on the monitored component and are easily fabricated using additive manufacturing (3D printing) processes. Their design and optimisation is driven by a pioneering theoretical model based on perturbative couple-mode theory of guided wave propagation in structures with periodic corrugated surface profiles. Experimental nonlinear ultrasonic tests confirmed these theoretical predictions and indicated that PC sensing device are able to enhance the sensitivity of nonlinear ultrasonic inspection for various materials and components
Application of HR-NMR for the Metabolic Kinetic Assessment of Red Mullet (Mullus barbatus) and Bogue (Boops boops) Samples during Different Temperature Storage
No full textFish freshness and quality can be measured through several indices that can be both chemical and physical. The storage temperature and the time that elapses following the catching of the fish are fundamental parameters that define and influence both the degree of freshness and nutritional quality. Moreover, they particularly effect the kind of fish we considered. In this research, it was observed how different temperatures of storage and shelf-life (+4 °C and 0 °C) may affect the metabolic profile of red mullet (Mullus barbatus) and bogue (Boops boops) fish samples over time, specifically observing the alteration of freshness and quality. In particular, a High-Resolution Nuclear Magnetic Resonance (HR-NMR)-based metabolomics approach was applied to study the metabolic profile changes that occur in fish spoilage. The HR-NMR spectroscopy data were useful for calculating a kinetic model that was able to predict the evolution of different compounds related to fish freshness, such as trimethylamine (TMA-N) and adenosine-5′-triphosphate (ATP) catabolites for the K-index. Furthermore, NMR in combination with chemometrics allowed us to estimate a further kinetic model able to represent the spoilage evolution by considering the entire metabolome. In this way, it was also possible to detect further biomarkers characterizing the freshness and quality status of both red mullets and bogues
A note on smooth matrices of constant rank
No full textWe show that, given a time–varying matrix A(t) of constant rank, there exists a matrix H(t) such that the rows of H(t)A(t) are an orthonormal basis of the space spanned by the rows of A(t). We present some consequences of this result and, in particular, we prove a version for matrices of Doležal's Theorem. These results are not new, and references are given. All the proofs of the results stated in these references, with the exception of those based on the use of differential equations — which holds only for —, find suitable matrices defined on overlapping subsets of the domain and then patch them together without losing regularity and the other required properties. In our approach the patching needs to be done only for matrices consisting of one row and all the remaining results are obtained by usual algebraic tools
Analysis of problems and methodologies for the development of an optimization module for Computational Fluid Dynamics
No full text
A new algorithm for acoustic emission localization and flexural group velocity determination in anisotropic structures
No full textThis paper presents a new in situ Structural Health Monitoring (SHM) system able to identify the location of acoustic emission (AE) sources due to low-velocity impacts and to determine the group velocity in complex composite structures with unknown lay-up and thickness. The proposed algorithm is based on the differences of stress waves measured by six piezoelectric sensors surface bonded. The magnitude of the Continuous Wavelet Transform (CWT) squared modulus was employed for the identification of the time of arrivals (TOA) of the flexural Lamb mode (A0). Then, the coordinates of the impact location and the flexural wave velocity were obtained by solving a set of non-linear equations through a combination of global Line Search and backtracking techniques associated to a local Newton’s iterative method. To validate this algorithm, experimental tests were conducted on two different composite structures, a quasi-isotropic CFRP and a sandwich panel. The results showed that the impact source location and the group speed were predicted with reasonable accuracy (maximum error in estimation of the impact location was approximately 2% for quasi-isotropic CFRP panel and nearly 1% for sandwich plate), requiring little computational time (less than 2 s)
AFSCME leader P.J. Ciampa, Memphis, 1968
No full textP.J. Ciampa, field staff director of AFSCME, argues with Memphis, Tennessee, Mayor Henry Loeb, on February 13, 1968 during a meeting on the sanitation workers\u27 strike.https://digitalcommons.memphis.edu/speccoll-swstrike/1195/thumbnail.jp
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