How hard is a commercial puzzle: the eternity II challenge

Recently, edge matching puzzles, an NP-complete problem, have received, thanks to money-prized contests, considerable attention from wide audiences. We consider these competitions not only a challenge for SAT/CSP solving techniques but also as an opportunity to showcase the advances in the SAT/CSP community to a general audience. This paper studies the NP-complete problem of edge matching puzzles focusing on providing generation models of problem instances of variable hardness and on its resolution through the application of SAT and CSP techniques. From the generation side, we also identify the phase transition phenomena for each model. As solving methods, we employ both; SAT solvers through the translation to a SAT formula, and two ad-hoc CSP solvers we have developed, with different levels of consistency, employing several generic and specialized heuristics. Finally, we conducted an extensive experimental investigation to identify the hardest generation models and the best performing solving techniques.

From being ill in time to love of eternity

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Meditations on life, death, and eternity /

Translation of selections from Stunden der Andacht, generally ascribed to Zschokke.

An antidote against deism : in a series of letters ... in which the arguments against the eternal prevalence of sin and misery and in favor of the restitution or final restoration of all things are candidly stated from Scripture and also an answer to objections; ... to which are added a review of President Edwards̓ sermon on the eternity of hell torments ... also some strictures on Dr. Rylands̓ sermon entitled The first lie refuted /

Page 267 incorrectly numbered 297.

The spirit of prayer; or, The soul rising out of the vanity of time, into the riches of eternity. ...

Mode of access: Internet.

Eternity realized, or, A guide to the thoughtful /

In dark green (C146) cloth; printed paper label on spine with title: Guide to the thoughtful.

Consolations of Gospel truth, exhibited in various interesting anecdotes respecting the dying hours of different persons, who gloried in the Cross of Christ. To which are added, some affecting narratives, describing the horrors of unpardoned sin, the the prospect of death and eternity.

Mode of access: Internet.

Daily meditations: or, Quotidian preparations for and considerations of death and eternity begun July 19. 1666 /

"A postscript to the reader."--p. [17-18], in verse; signed: M.J. [i.e., Marmaduke Johnson]. In the first issue (1668; Evans 128) the identical postscript is signed: J.T.

Those who can, teach. 'A teacher affects eternity; she can never tell where her influence stops'

Teachers can have a profound effect on us all, both good and bad. In this paper the effect two individual midwives had on my evolution as a midwife will be examined. They were very different: one was formal and the other informal. The classroom was the setting for one, the clinical area for the other. Each had her own unique style and way of looking at the world. One was very different from the other in manner and in approach. However they each shared a philosophy of women centred, normal birth which they espoused in all aspects of their working lives.

The Vase’s Representation (Cantharus, Crater) on the Roman Mosaic in Portugal: A Significant Formal and Iconographic Path from Classic Antiquity to Late Antiquity

11TH INTERNATIONAL COLLOQUIUM ON ANCIENT MOSAICS OCTOBER 16TH  20TH, 2009, BURSA TURKEY Mosaics of Turkey and Parallel Developments in the Rest of the Ancient and Medieval World: Questions of Iconography, Style and Technique from the Beginnings of Mosaic until the Late Byzantine Era

A Realidade do Tempo – uma análise de Durée et Simultanéité de Henri Bergson

Este trabalho aborda a questão da realidade do tempo na obra Durée et Simultanéité de Henri Bergson. Primeiramente, explicita-se o sentido dos termos necessários para uma compreensão da natureza do tempo: “duração”, “memória”, “virtual”, “real”, “sucessão” e “simultaneidade”. O objectivo desta análise é compreender de que forma se relacionam estes conceitos e em que sentido a consciência do tempo pode tomar-se como raiz da constituição temporal. A abordagem destes conceitos conduz também à problemática da multiplicidade de tempos, que é inicialmente discutida em relação aos termos previamente referidos. Seguidamente, estabelece-se a relação entre o temporal e o intemporal, considerando de que forma surge a ideia de eternidade numa realidade que é essencialmente temporal. Neste ponto, considera-se a visão de duração como privação de eternidade e a questão de se é possível e como é possível uma consciência universal. O último tópico abordado no trabalho diz respeito à unicidade do tempo. O estudo da realidade no tempo partiu da distinção entre o tempo real e o tempo espacializado. Posteriormente, observámos, através da consideração das relações eu-outro, em que sentido se pode falar de um único tempo. Com a pretensão de chegar à hipótese de um único tempo vivido clarificámos o problema da multiplicidade de tempos. Por último, considerámos a possibilidade de um mundo sem consciência.