Multiplierless DCT Algorithm for Image Compression Applications

This paper presents a novel error-free (infinite-precision) architecture for the fast implementation of 8x8 2-D Discrete Cosine Transform. The architecture uses a new algebraic integer encoding of a 1-D radix-8 DCT that allows the separable computation of a 2-D 8x8 DCT without any intermediate number representation conversions. This is a considerable improvement on previously introduced algebraic integer encoding techniques to compute both DCT and IDCT which eliminates the requirements to approximate the transformation matrix ele- ments by obtaining their exact representations and hence mapping the transcendental functions without any errors. Apart from the multiplication-free nature, this new mapping scheme fits to this algorithm, eliminating any computational or quantization errors and resulting short-word-length and high-speed-design.

On a Direct Approach to the Solution of Inverse Optical Problems

The evaluation from experimental data, of physical quantities, which enter into the electromagnetic Maxwell equations, is described as inverse optical problem. The functional relations between the dependent and independent variables are of transcendental character and numeric procedures for evaluation of the unknowns are largely used. Herein, we discuss a direct approach to the solution, illustrated by a specific example of determination of thin films optical constants from spectrophotometric data. New algorithm is proposed for the parameters evaluation, which does not need an initial guess of the unknowns and does not use iterative procedures. Thus we overcome the intrinsic deficiency of minimization techniques, such as gradient search methods, Simplex methods, etc. The price of it is a need of more computing power, but our algorithm is easily implemented in structures such as grid clusters. We show the advantages of this approach and its potential for generalization to other inverse optical problems.

Sobolev Type Decomposition of Paley-Wiener-Schwartz Space with Application to Sampling Theory

2000 Mathematics Subject Classification: 94A12, 94A20, 30D20, 41A05.

Inmanencia mistica en la obra de Federico Garcia Lorca

The purpose of this dissertation was to analyze the works of Federico García Lorca within the mystic context that dominates their very genesis. The problematic definition of mysticism was explored lest it be confused with traditional mysticism, which implies union with the divine. The historiography of literature speaks of the Mystic Genre, yet it does not address the mystic mode of artistic creation due to its inability to adhere to rational measure. This mode of conception was explored through Lorca's poetic discourse: ‘Lorquian mysticism’ is the result of the poet's cultivation of an innate spiritual potential enhanced by external influences and technical mastery. ^ There is visible influence of Fray Luis of León in Lorca's early Libro de poemas and El maleficio de la mariposa, as well as of Saint John of the Cross in the later Diván del Tamarit, Sonetos de amor and Yerma. However, definitive echoes of poets from the Sufi and other Eastern mystic traditions were also illustrated in these late works. A persistent longing to elide the physical condition, the greatest obstacle of the transcendental quest, is the essence of Lorca's poetic voice. ^ The object of this analysis was Lorca's language, which reaches levels removed from conventional thought. His dazzling metaphors and his particular use of symbols and of paradox compare equitably with those of great mystic poets. Like them, Lorca was faced with the same limitations of language to describe an ineffable experience; he embraced what Octavio Paz describes as ‘sacred language’: there is a linguistic frugality as well as an ambiguity in Lorca's poetic art that result from his realization of supercognitive states. Yet such an interpretation is rejected by the rationalist approach, invoking the age-old debate between faith and reason and signaling the application of psychoanalytical theory. This limited approach was disputed on the basis of reader-response theory. Lorca was truly an eclectic and a modification of the conventional reader's preestablished horizon of expectations is essential in order to seal the gaps in his late works. This innovative perspective placed Lorca within the framework of a new mysticism in the modern world. ^

Hacia una poetica del Neobarroco: La vision de la historia en Jose Lezama Lima, Reinaldo Arenas y Severo Sarduy

Most of the critical studies of Baroque novels written in Spanish America during the 1960s and 1970s are characterized by a limited examination of their formal and stylistic representations. This dissertation explored the way in which certain writers developed a new Baroque tendency, the so-called Neobarroco, that presented a particular vision of history. José Lezama Lima, Reinaldo Arenas and Severo Sarduy developed innovative fictional and historiographic perceptions as alternative discourses to understand and perceive the cultural intricacies of Cuba and the New World. Their novels posited an elaborated poetic theory of history that can be summarized by the principle of supratemporal analogies, interweaved by a "metaphoric subject" that makes possible the conception of "imaginary eras". Since this poetry arises from a network of metaphoric correspondences, the image is conceived as a cultural creation that acts upon reality. ^ Although this study traced the trajectory of their writings from the point of view of their own essays, our focus was on the act of recovering the past as reshaped forms that are present in the memory. Paradiso, El mundo alucinante and De donde son los cantantes exemplified the attempt to place Americanness within the realm of poetics and history as one single discourse constructed by a combination of self-consciousness and historiographic meditation. ^ Basing my thesis on postmodernist theory (Ihab Hassan, Brian McHale, Linda Hutcheon) and philosophies of history (Michel Foucault, Hayden White, Keith Jenkins, Dominick LaCapra), I argued that the antagonistic paradoxes faced by postmodernism were reconcilable tendencies of the Neobarroco prior to the actual debate on the postmodern condition. The aesthetic trend initiated by these writers and their reading of history confronted the official historiographic discourse, thus empowering a contemporary voice in the current debate on historical skepticism. ^

Grey Slate

GREY SLATE is a collection of poems that focuses on the natural world in order to explore the mysteries of life with the intent to create a meditation on what it means to be a human being interacting with this world. Inspired by John Keats’ theory of Negative Capability, GREY SLATE does not seek to explain, but to dwell in the mysteries it explores. The poems are tied together through similar images or ideas in order to mimic the way the mind works as it jumps from thought to thought. GREY SLATE also mixes different types of poems: from haiku to sonnet to paradelle, and from lyric to narrative to prose poem. GREY SLATE hopes to inspire readers to take a break from searching for truths and indulge in the beautiful mystery that is life with no need for answers.

Identidade pessoal em Hume e em Kant

The issue of this dissertation is the problem of personal identity. More specifically, the objective of this work is to investigate and compare how Hume and Kant construct, within their own philosophical systems, their theories of personal identity (of the self), so that these theories can set the grounds for the construction of theoretical knowledge. Hume’s theory of personal identity is closely connected to his empirical model of investigation, according to which no metaphysical conclusion can be accepted. This implies a very specific limitation to the humean description of personal identity. Because he can’t find a safe empirical reference for the self, Hume is obliged to describe it as a mere fiction, which the imagination creates to try to give unity to the set of perceptions that composes the mind. Kant, on the other hand, constructs his theory of the self with the aim of explaining the possibility of the a priori knowledge in Mathematics and in Physics. Kant tries to find which attributes must necessarily belong to the self so that this self can be, at the same time, the a priori transcendental condition of a subjectivity in general and the equally a priori transcendental condition for the construction of objective knowledge. Moreover, Kant shows the impossibility of objectively knowing, as intuition, the self, and limits himself to the description of the self as a mere subjective consciousness of the synthetic capacities of the understanding. Several disparities, thus, can be perceived between the theories of personal identity of these two authors. Based on these differences, the present work also examines the possibility of making an interpretation of the humean theory of the self by using elements of the kantian philosophy. The purpose of this kind of interpretation is to propose a solution to the difficulties faced by Hume in the description of his theory of personal identity.

American Manna: Religious Responses to the American Industrial Food System

“American Manna: Religious Responses to the American Industrial Food System” is an investigation of the religious complexity present in religious food reform movements. I conducted ethnographic fieldwork at four field sites. These field sites are a Jewish organic vegetable farm where the farmers begin their days with meditation, a Christian raw vegan diet center run by Messianic Jews, a Christian family that raises their cattle on pastures and sends them to a halal processing plant for slaughter, and a Jewish farm where Christian and Buddhist farm staff helped to implement shmita, the biblical agricultural sabbatical year.

The religious people of America do not exist in neatly bound silos, so in my research I move with the religious people to the spaces that are less clearly defined as “Christian” or “Jewish.” I study religious food reformers within the framework of what I have termed “free-range religion” because they organize in groups outside the traditional religious organizational structures. My argument regarding free-range religion has three parts. I show that (1) perceived injustices within the American industrial food system have motivated some religious people to take action; (2) that when they do, they direct their efforts against the American food industry, and tend to do so outside traditional religious institutions; and finally, (3) in creating alternatives to the American food industry, religious people engage in inter-religious and extra-religious activism.

Chapter 1 serves as the introduction, literature review, and methodology overview. Chapter 2 focuses on the food-centered Judaism at the Adamah Environmental Fellowship at the Isabella Freedman Jewish Retreat Center in Falls Village, CT. In Chapter 3, I discuss the Hallelujah Diet as prescriptive literature and as it is put into practice at the Hallelujah Diet Retreat Center in Lake Lure, NC. Chapter 4 follows cows as they move from the grassy hills of Baldwin Family Farms in Yanceyville, NC to the meat counter at Whole Foods Markets. In Chapter 5, I consider the shmita year, the biblical agricultural sabbatical practice that was reimagined and implemented at Pearlstone Center in Baltimore, MD during 2014-2015. Chapter 6 will conclude this dissertation with a discussion of where religious food reform has been, where it is now, and a glimpse of what the future holds.

Shaping Religious and Cultural Aspiration: Engraved Sutras in Southwestern Shandong Province from the Northern Qi Dynasty (550-577 CE), China

This dissertation explores how the Buddhist texts carved on the cliffs of mountains served their patrons’ religious and cultural goals. During the Northern Qi period (550-577 CE), these carved Buddhist sutra texts and Buddha names were prevalent, and were carved directly onto the surfaces of numerous mountains in southwestern Shandong Province. The special focus of this study is on the Buddhist engravings at Mt. Hongding in Dongping, and at Mt. Tie in Zoucheng. Created in approximately 553-564 CE, the carvings at Mt. Hongding stand as the terminus a quo of the history of Buddhist sutras carved into the rocks of the Shandong mountains. The Buddhist carvings at Mt. Hongding served monastic goals. The monk patrons, Seng’an Daoyi, Fahong, and others created the carvings as an integral part of their Buddhist meditation practices. The carvings at Mt. Tie paint a very different picture. At Mt. Tie, a colossal Buddhist sculpture-style carving was created in 579 CE. Sponsored by several Han Chinese patrons, the carving was designed in the form of a gigantic Chinese traditional stele. This study suggests that several Han Chinese local elites proudly displayed their Han Chinese linage by using the gigantic stele form of Buddhist text carving as a means to proclaim Han Chinese cultural and artistic magnificence. To achieve these non-religious goals, they appropriated rhetorical devices often used by the Han elite, such as the stele form, written statements about the excellence of the calligraphy used, and discourse on calligraphy connoisseurship.

The Role of Home Practice Engagement in a Mindfulness-Based Intervention

Over the last three decades, there has been a precipitous rise in curiosity regarding the clinical use of mindfulness meditation for the self-management of a broad range of chronic health conditions. Despite the ever-growing body of evidence supporting the use of mindfulness-based therapies for both medical and psychological concerns, data on the active ingredients of these mind-body interventions are relatively scarce. Regular engagement in formal mindfulness practice is considered by many to be requisite for generating therapeutic change; however, previous investigations of at-home practice in MBIs have produced mixed results. The equivocal nature of these findings has been attributed to significant methodological limitations, including the lack of standardized, systematic practice monitoring tools, and a singular focus on practice time, with little attention paid to the nature and quality of one’s practice. The present study used a prospective, observational design to assess the effects of home-based practice on dispositional mindfulness, self-compassion, and psychological functioning in twenty-eight people enrolled in an MBSR or MBCT program. To address some of the aforementioned limitations, the present study collected detailed weekly accounts of participants’ home-based practice engagement, including information about practice time (i.e., frequency and duration), exercise type, perceived effort and barriers to participation, and practice quality. Hierarchical multiple regression was used to examine the relative contribution of practice time and practice quality on treatment outcomes, and to explore possible predictors of adherence to at-home practice recommendations. As anticipated, practice quality and perceived effort improved with time; however, rather unexpectedly, practice quality was not a significant predictor of treatment-related improvements in psychological health. Home practice engagement, however, was predictive of change in dispositional mindfulness, in the expected direction. Results of our secondary analyses demonstrated that employment status was predictive of home practice engagement, with those who were unemployed completing more at-home practice on average. Mindfulness self-efficacy at baseline and previous experience with meditation or other contemplative practices were independently predictive of mean practice quality. The results of this study suggest that home practice helps generate meaningful change in dispositional mindfulness, which is purportedly a key mechanism of action in mindfulness-based interventions.

La déconstruction de l'onto-théologie par Jacques Derrida : détour littéraire et mise en relief de la matrice langagière comme "différance".

Le mouvement derridien de la différance marque la rupture avec l'affirmation de la métaphysique de la présence, avec l'autorité du signifié transcendantal. Dans cet univers mouvant de signifiants qui se renvoient perpétuellement les uns aux autres, la logique d'univocité se disloque. La "présence" n'est que fantomatique, s'esquissant au sein d'une chaîne ininterrompue de signifiants et se laissant toujours creuser par la marque d'un irréductible manque. Face au logocentrisme, corollaire de l'affirmation de la présence, l'écriture se veut siège et articulation de la trace, d'une origine qui ne peut être que raturée, véhicule d'une irrémédiable fêlure. La volet littéraire de la déconstruction a pour but de mettre en évidence le fonctionnement de l'"indécidabilité" du discours, soit une certaine ambivalence dans la signification qui caractérise tout texte. L'objectif principal de la présente recherche est de fournir une compréhension plus approfondie de la déconstruction en insistant sur l'ancrage langagier de tout texte. Le discours philosophique n'échappe ainsi pas au mécanisme différentiel du langage et de la dérive métaphorique. La parenté entre la perspective déconstructiviste derridienne et la conception mallarméenne du langage poétique semble frappante. La mise en oeuvre, par Mallarmé, d'une dislocation de l'espace textuel, son minutieux "creusement" du vers après renoncement à toute quête d'"Idéal", la mise en relief du leurre de l'appropriation langagière, voilà qui trouve un écho particulier dans les thèses derridiennes. La "mimésis" platonicienne se voit au travers du prisme de la "mimique" mallarméenne. La déconstruction poursuit son travail de "luxation" de l'oreille philosophique, insérant les philosophèmes dans la matrice langagière, les livrant ainsi au hasard du cheminement textuel et les confrontant à l'aporie. La philosophie n'a alors d'autre choix que d'abandonner ses prétentions transcendantales. La marche de la "différance" instaure une inexorable distance qui prive le sujet de tout rapport direct avec une origine assurée et lui ôte toute possibilité de maîtrise sur le monde. Au travers de la langue, se profile la question de l'altérité, de la relation dissymétrique qui nous lie à cet "autre", ce "tout-autre" qui nous fonde et nous constitue. L'accueil inconditionnel de cette altérité nous mènera à l'étude de la "religion", la déconstruction se tournant vers le "religieux" tout en effectuant un "retournement" habile de tout credo essentialiste.

Walking with God through Nature: An Examination of John Flavel’s Behavioural Instructions on Matters Related to Christian Piety

John Flavel was a Reformed Puritan of the seventeenth-century who wrote a series of devotional guides that offered instructions drawn from Christian mystical traditions on how to improve religious activities as a means of ecstatically encountering God. Evaluating the efficacy of these instructions from a scientifically-based behavioural perspective, this study has found that Flavel’s techniques were likely helpful to his readers in facilitating socially normative ecstatic experiences through ordinary Christian practice. Furthermore, discovering that Flavel promoted the use of these techniques for engaging with ecological materials in the wilderness and country-side, this essay proposes that Flavel introduced his readers to effectual manners that could help them ecstatically encounter God during the practice of meditational nature-based walks.

WAKING (TO) THINKING BEING: A STUDY OF EDUCATION, METAPHYSICS, MIND, AND LANGUAGE

This dissertation articulates the basic aims and achievements of education. It recognizes language as central to thinking, and philosophy and education as belonging profoundly to one another. The first step is to show that although philosophy can no longer claim to dictate the foundations of knowledge or of disciplines of inquiry, it still offers an exceptionally general level of self-understanding. Education is equally general and faces a similar crisis of self-identity, of coming to terms with reality. Language is the medium of thought and the repository of historical mind; so a child’s acquisition of language is her acquisition of rational freedom. This marks a metaphysical change: no longer merely an animal, she comes to exercise her powers of rationality, transcending her environment by seeking and expressing reasons for thinking and doing. She can think about herself in relation to the universe, hence philosophize and educate others in turn. The discussion then turns to the historical nature of language. The thinking already embedded in language always anticipates further questioning. Etymology serves as a model for philosophical understanding, and demonstrates how philosophy can continue to yield insights that are fundamental, but not foundational, to human life. The etymologies of some basic educational concepts disclose education as a leading out and into the midst of Being. The philosophical approach developed in previous chapters applies to the very idea of an educational aim. Discussion concerning the substantiality of educational ideals results in an impasse: one side recommends an open-­ended understanding of education’s aims; the other insists on a definitive account. However, educational ideals exhibit a conceptual duality: the fundamental achievements of education, such as rational freedom, are real; but how we should understand them remains an open question. The penultimate chapter investigates philosophical thinking as the fulfillment of rational freedom, whose creative insights can profoundly transform our everyday activities. That this transformative self-understanding is without end suggests the basic aims of education are unheimlich. The dissertation concludes with speculative reflection on the shape and nature of language, and with the suggestion that through education reality awakens to itself.

‘The voice speaking, desired, awaited’: Jack Lindsay’s 1649, Textual Form and Communist Historiography

This article examines the 1938 historical novel 1649: A Novel of a Year by the Anglo-Australian communist polymath Jack Lindsay in the context of the politics of the Popular Front, and identifies the aesthetic and historiographic debates questions that inform Lindsay’s inventive rendition of the historical novel. The novel may be considered in light of what Lindsay later called his desire ‘to use the novel to revive revolutionary traditions’, as well as his ‘struggle to achieve an understanding of the Novel while writing novels’. Lindsay’s novel figures a reality becoming prosaic: it reproduces contemporary textual sources – tracts, pamphlets, newspapers – as part of its meditation on a nascent print culture whose products circulate in processes that mirror the increasingly conspicuous flow of commodities. In this sense, the novel offers a marxist reflection on its own conditions of possibility in emergent bourgeois culture, as well as intervening in the vexed question of the Civil War as a ‘bourgeois revolution’. The novel however seeks to capture a dialectical method of representing the revolution that acknowledges defeat while rearticulating the utopian content of the defeated radicals, a practice integral to Lindsay’s vision of popular history as a transhistorical dialogue. That utopian content is transmitted through two forms: popular song, which acts to supplement political writing; and the heroic portrayal of the Leveller John Lilburne on trial, whose conduct exemplifies praxis conceived as a unity of word, thought and action.