444 research outputs found
Human Rights of Migrants: The Dawn of a New Era?
The purpose of this article is to highlight a number of key legal and policy developments which have occurred since the turn of the twenty-first century and to reflect on how these have and may advance the protection of the human rights of migrants. This article is optimistic and forward-looking in tenor, although the generally positive developments discussed do not necessarily mean that abuses of migrants and violations of their rights are no longer taking place. Nonetheless, if ten years of relatively intense activity can be viewed as a sound measure of progress, there is some cause for optimism that a new era may well be dawning for the human rights of migrants and for human rights generally, through the growing recognition that adequately protecting one of the most vulnerable groups in many societies is today the true measure of our humanity
Extremal problems in logic programming and stable model computation
We study the following problem: given a class of logic programs C, determine
the maximum number of stable models of a program from C. We establish the
maximum for the class of all logic programs with at most n clauses, and for the
class of all logic programs of size at most n. We also characterize the
programs for which the maxima are attained. We obtain similar results for the
class of all disjunctive logic programs with at most n clauses, each of length
at most m, and for the class of all disjunctive logic programs of size at most
n. Our results on logic programs have direct implication for the design of
algorithms to compute stable models. Several such algorithms, similar in spirit
to the Davis-Putnam procedure, are described in the paper. Our results imply
that there is an algorithm that finds all stable models of a program with n
clauses after considering the search space of size O(3^{n/3}) in the worst
case. Our results also provide some insights into the question of
representability of families of sets as families of stable models of logic
programs
The angry young men
In this thesis I intend to analyze the typical hero of British literature in the 1950\u27s, the rebel, the Angry Young Man. Using the works of Philip Larkin, Kengsley Amis, Keith Waterhouse, and John Osborne, I wish to show that this hero was no new type, either in society or fiction, but the difference in the postwar rebel was that, although driven by ambition, envy and greed, he had no admiration for the upper-class mores and beliefs
O-4-ChloroÂbenzoyl diphenylÂselenoÂphosphinate
The title compound, C19H14ClO2PSe, was obtained in the reaction of the diphenylÂmonoselenoÂphosphinic acid ammonium salt with 4-chloroÂbenzoyl chloride. The dihedral angle between the P-bonded aromatic rings is 72.64 (14)°. Packing of the molÂecules in the crystal is reinforced by π–π stacking interÂactions between two inversion-related 4-chloroÂbenzene rings [centroid-centroid separation = 4.189 (2) Å] and a C—H⋯O interaction also occurs
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