and Weinberg's definitions in general rela-tivity, we find the momentum four-vector of the closed universe based on Marder space-time. The momentum four-vector (due to matter plus field) is found to be zero. These results supports the viewpoints of Banerjee-Sen, Xulu and Aydo ˙ gdu-Saltı. Another point is that our study agree with previous works of Cooperstock-Israelit, Rosen, Johri et al..

and Weinberg's definitions in general rela-tivity, we find the momentum four-vector of the closed universe based on Marder space-time. The momentum four-vector (due to matter plus field) is found to be zero. These results supports the viewpoints of Banerjee-Sen, Xulu and Aydo ˙ gdu-Saltı. Another point is that our study agree with previous works of Cooperstock-Israelit, Rosen, Johri et al..

The land acquisition problem is an exchange problem with one buyer and multiple sellers with the buyer having demand for more than one units and each seller holding one unit of a homogeneous good. We show that under incomplete information, no mechanism designed for the problem can be fully satisfactory. Then we characterize different “second best” mechanisms to address this problem. ∗My supervi...

INTRODUCTION Mexico faces important problems concerning income and health inequity. Mexico's national public agenda prioritizes remedying current inequities between its indigenous and non-indigenous population groups. This study explores the changes in social inequalities among Mexico's indigenous and non-indigenous populations for the time period 2000 to 2010 using routinely collected poverty,...

In the last lecture, we analyzed the Move-To-Front heuristic for searching in a self-organizing linkedlist. In particular, we showed that Move-To-Front is both statically and dynamically optimal (as good as any dynamic list) up to a factor of 2, provided we work under Sleator & Tarjan’s cost model. We also introduced an omniscient algorithm called Order-By-Next-Request [Mun00], and proved that ...

We present a survey of connuence properties of (acyclic) term graph rewriting. Results and counterexamples are given for diierent kinds of term graph rewriting: besides plain applications of rewrite rules, extensions with the operations of collapsing and copying, and with both operations together are considered. Collapsing and copying together constitute bisimilarity of term graphs. We establis...

This article discusses Sen’s critique of the behavioral implications of revealed preference theory. Sen proposes the concept of commitment as a way to account for the possibility of counter-preferential choice. More generally, it is part of an argument against the thesis that rationality may be reduced to some criteria of internal consistency of choices. The main purpose of this paper is to sho...

BACKGROUND Bronchoalveolar lavage (BAL) galactomannan (GM) assay has been used for diagnosing invasive aspergillosis (IA). We aimed to derive a definitive estimate of the overall accuracy of BAL-GM for diagnosing IA. METHODS AND RESULTS We undertook a systematic review of thirty diagnostic studies that evaluated the BAL-GM assay for diagnosing IA. PubMed and CBM (China Biological Medicine Dat...