|An issue central to the navigation problem is memory. Traditional systems build symbolic maps of the world for navigational reference. Reactive methods, in contrast, eliminate or minimize the use of memory. These reac-tive techniques have been remarkably successful at solving a wide range of navigational problems. Some problems, however, still present a challenge to reactive strategies, (box c...

The correct translation of verb tenses ensures that the temporal ordering of events in the source text is maintained in the target text. This paper assesses the utility of automatically labeling English Simple Past verbs with a binary discursive feature, narrative vs. non-narrative, for statistical machine translation (SMT) into French. The narrativity feature, which helps deciding which of the...

“Those who cannot remember the past are condemned to repeat it” [1]. The famous quote from Hispanic American philosopher George Santayana reminds us of the critical importance of constantly reflecting on the most important lessons garnered from both our own personal experiences and those of our peers. In 49 years of academic orthopedic practice, I have frequently reflected on the most important...

  Background Tuberculosis (TB) is the second-most common cause of death from infectious disease (after those due to HIV/AIDS). Roughly one-third of the world's population has been infected with M. tuberculosis, with new infections occurring in about 1% of the population each year. People with active TB can infect 10-15 other people through close contact over the course of a year. Materials and ...

We present an INTEGRAL data analysis of the X-ray transient SAX J2103.5+4545 during two outbursts detected in December 2002. The INTEGRAL coordinates and error circle agree with the position of the recently proposed optical counterpart. A power-law plus cutoff model provided a good fit to the 4–150 keV spectrum yielding a photon index of 1.0±0.1, a cutoff energy E cut = 7.6 ± 2.0 keV and a fold...

|An issue central to the navigation problem is memory. Traditional systems build symbolic maps of the world for navigational reference. Reactive methods, in contrast, eliminate or minimize the use of memory. These reactive techniques have been remarkably successful at solving a wide range of navigational problems. Some problems, however, still present a challenge to reactive strategies, (box ca...

Fasting gastrin levels rise steeply to levels exceeding adult fasting values after birth and do not fall despite the rising gastric acidity in the first few weeks of life. When both gastrin and acid secretion rise together (such as in the Zollinger-Ellison syndrome) the negative feedback between gastrin and antral acidity is not working [2,13,14]. During this time there is no post-prandial gast...

This paper studies the implementation of the coupling from the past (CFTP) method of Propp and Wilson (1996) in the setup of two and three component mixtures with known components. We show that monotonic-ity structures can be exhibited in both cases, but that CFTP can still be costly for three component mixtures. We conclude with a simulation experiment exhibiting an almost perfect sampling sch...