I Bellman, R., "On the Theory of Dynamic Programming," PROC. NATL. ACAD. Sci., 38, 716-719 (1952). 2 Bellman, R., "Some Functional Equations in the Theory of Dynamic Programming," Ibid., 39, 1077-1082 (1953). ' Bellman, R., "Bottleneck Problems and Dynamic Programming," Ibid., 39, 947-951 (1953). 4 Bellman, R., "A Problem in the Theory of Dynamic Programming," Econometrica (to appear). 6 Bellma...

In January 2003, the Chandra Orion Ultradeep Project (COUP) detected about 1400 young stars during a 13.2 day observation of the Orion Nebula Cluster (ONC). This paper is a study of the X-ray properties of a well-defined sample of 28 solar-mass ONC stars based on COUP data. Our goals are to characterize Universe Division, Science Mission Directorate NASA Headquarters

Laminin expression and the subsequent deposition of a basement membrane by primitive endoderm cells is necessary for early mammalian development. We demonstrate that the transcription factors COUP-TF I and II are up-regulated in primitive endoderm cells faster than LAMB1 and LAMC1, and that either COUP-TF is sufficient to induce expression of these laminin genes.

Social media can be used for sharing and learning news but also spreading misinformation disinformation to manipulate public opinion. Existing research on fabricated content social demonstrates the use of Twitter as a means disseminate manipulative (through bots other means). This study looks at created posted through during failed coup attempt that occurred 15th July 2016 in Turkey. The aim is...

6 Litman, R. M., and A. B. Pardee, Nature, 178, 529 (1957). 7 Dunn, D. B., and J. D. Smith, Nature, 174, 305 (1954). 8 Benzer, S., these PROCEEDINGS, 41, 344 (1955). 9 Benzer, S., and E. Freese, these PROCEEDINGS, 44, 112 (1958). 10 Freese, E., these PROCEEDINGS, 45, 622 (1959). 11 S6chaud, J., and E. Kellenberger, Ann. Inst. Pasteur, 90, 102 (1956). 12 Garen, A., personal communication. 13 Uch...

The 1953-1961 US President Dwight D. Eisenhower emphasized that his experience as the Supreme Commander of the Allied Expeditionary Forces in Europe during the Second World War taught him that “plans are worthless, but planning is everything”. This sound contradictory: if plans are worthless, why bother with planning at all? In this paper, we show that Eisenhower’s observation has a meaning: wh...

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A 5-year-old male with a history of frequent upper respiratory infections presented following a motor vehicle crash as an unrestrained, ejected passenger. CT of the chest and abdomen showed a small liver laceration, multifocal peripheral lung opacities ( fig. 1 , black arrows) and extensive lung laceration ( fig. 1 , white arrow). The patient required supplemental oxygen, but no surgical interv...