Global ETD Search

31	Tau-Equivalences and Refinement for Petri Nets Based Design Tarasyuk, Igor V. 27 November 2012 (has links) The paper is devoted to the investigation of behavioral equivalences of concurrent systems modeled by Petri nets with silent transitions. Basic τ-equivalences and back-forth τ-bisimulation equivalences known from the literature are supplemented by new ones, giving rise to complete set of equivalence notions in interleaving / true concurrency and linear / branching time semantcis. Their interrelations are examined for the general class of nets as well as for their subclasses of nets without siltent transitions and sequential nets (nets without concurrent transitions). In addition, the preservation of all the equivalence notions by refinements (allowing one to consider the systems to be modeled on a lower abstraction levels) is investigated. Petri-Netze, sequentielle Netze info:eu-repo/classification/ddc/004 ddc:004
32	Neither Scotland nor England : Middle Britain, c.850-1150 McGuigan, Neil January 2015 (has links) In and around the 870s, Britain was transformed dramatically by the campaigns and settlements of the Great Army and its allies. Some pre-existing political communities suffered less than others, and in hindsight the process helped Scotland and England achieve their later positions. By the twelfth century, the rulers of these countries had partitioned the former kingdom of Northumbria. This thesis is about what happened in the intervening period, the fate of Northumbria's political structures, and how the settlement that defined Britain for the remainder of the Middle Ages came about. Modern reconstructions of the era have tended to be limited in scope and based on unreliable post-1100 sources. The aim is to use contemporary material to overcome such limitations, and reach positive conclusions that will make more sense of the evidence and make the region easier to understand for a wider audience, particularly in regard to its shadowy polities and ecclesiastical structures. After an overview of the most important evidence, two chapters will review Northumbria's alleged dissolution, testing existing historiographic beliefs (based largely on Anglo-Norman-era evidence) about the fate of the monarchy, political community, and episcopate. The impact and nature of ‘Southenglish' hegemony on the region's political communities will be the focus of the fourth chapter, while the fifth will look at evidence for the expansion of Scottish political power. The sixth chapter will try to draw positive conclusions about the episcopate, leaving the final chapter to look in more detail at the institutions that produced the final settlement. 942.801
33	A promise kept: the mystical reach through loss Collins, Jody 04 October 2019 (has links) The meaning of loss is love. I know this through attention to experience. Whether loss or love is experienced in abundance or in absence, the meaning is mystical with an opening of body, mind, heart and soul to spirit. And so, in the style of a memoir, in the way of contemplative prayer, I contemplate and share my soul as a promise kept in the mystical reach through loss. With the first, initiating loss, the loss of my nine-year-old nephew, Caleb, I experience an epiphany that gives me spiritual instructions that will not be ignored. I experience loss as an abundance of meaning that comes to me as gnosis, as “knowledge of the heart” according to Elaine Pagels or divine revelation in what Evelyn Underhill calls mystical illumination in the experience of “losing-to-find” in union with the divine. Then, with gnostic import, in leaving the ordinary for the extraordinary, I enter the empty room in the painful yet liberating experience of the loss of my self. In the embrace of emptiness, I proceed to the first wall, the second wall, the third wall, the dark corner of denial, the return to centre, and, finally, to breaking the fourth wall in the empty room so as to keep my promise to you. Who are “you”? You are God. You are Caleb. You are spirit. You are my higher soul or self. And, you are the reader. You are my dear companion in silence. And then, through a series of broken promises and more loss, within what John of the Cross calls, “the dark night of the soul,” I am stopped by the ineffability of the dark corner of denial, the horror of separation and the absence of meaning, which is depicted as the grueling gap between the spiritual abyss and the breakthrough. What does it mean to keep going through a solemn succession of losses? I don’t know. In going into the empty room, I simply put pain to work in order to reach you. Through loss, though there are infinite manifestations, there is only one way: keep going. And so, in a triumph of the spirit, I keep going so as to be: a promise kept in the mystical reach through loss. As for you, through my illumined and dark experiences of loss, what is my promise to you? I keep going to reach the unreachable you. In the loss of self, with embodied emptiness, in going into the dark corner of denial, with a return to the divine centre of my emptied self, in an invitation to you, I give my soul to you in union with you. / Graduate / 2020-06-25 mystic mysticism apophatic cataphatic mystical mystical reach a promise kept empty promise broken promise reverence epiphany losing-to-find gnosis loss union divine will parsing perfection Caleb Lanz put pain to work wholehearted emptiness the empty room first wall second wall third wall dark corner of denial stonewall breaking the forth wall return to centre Promised Land abyss gap standing in the gap void memoir contemplative prayer contemplation everywhere and nowhere revelation illumination ineffable ineffability metaphor higher self self-giving self-emptying embodied emptiness higher soul spirit the dark night of the soul mystical union God breakthrough infinity infinite dynamism spiritual instruction invitation to spirit paradox symbol eulogy spiritual eyes spiritual heart looking into the slow reveal remaining sudden I am everywhere and nowhere what is what ought to be what can be what will be what is as it already is on earth as it is in heaven no-self unknown spirituality

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