Increasingly, manufacturers sell their products in their own retail stores, and many of these stores appear to be in direct competition with independent retailers; i.e., both types of retail stores are physically co-located. We analyze one way this practice affects the retail market. We find that, when independent retailers compete against company stores (instead of just against other independe...

Adaptive data is characterised by its ability to react to changes in the environment. Such data frequently occurs in Artificial Intelligence applications where the knowledge base may alter dynamically to adapt to new stimuli. Such systems are usually written in typeless, dynamically bound languages. Here we describe the concept of persistence and show how it may also be used in conjunction with...

This paper tells the story of Vectorwise, a high-performance analytical database system, from multiple perspectives: its history from academic project to commercial product, the evolution of its technical architecture, customer reactions to the product and its future research and development roadmap. One take-away from this story is that the novelty in Vectorwise is much more than just column-s...

Serum ferritin concentration has been measured during the course of pregnancy in 154 women. There was a rapid decrease in iron stores during early pregnancy irrespective of any iron therapy. Oral iron did, however, prevent the stores reaching iron deficient levels during the second half of pregnancy. The results suggest that maternal erythroid activity starts early in pregnancy and may exhaust ...

Consider the single server queue with an infinite buffer and a FIFO discipline, either of type M/M/1 or Geom/Geom/1. Denote by A the arrival process and by s the services. Assume the stability condition to be satisfied. Denote by D the departure process in equilibrium and by r the time spent by the customers at the very back of the queue. We prove that (D, r) has the same law as (A, s) which is...

V a ~ r i o u s d e v i c e s f o r t h e imp r o v e m e n t o f p h r a s e s t r u c t u r e g r a m m a r s (PSG) h a v e b e e n s u g g e s t e d r e c e n t l y . I n p a r t i c u l a r , t h e PSG m o d e l w i t h a p u s h d o w n s t o r e ( P S G / P D S ) a s d e s c r i b e d b y V o Y n g v e , a n d t h e PSG w i t h s u b s c r i p t s ( P S G / S ) a s d e s c r i b e d b y G...

Software-managed local stores have proven to be more efficient than hardware-managed caches for some important applications, yet their use has been mostly confined to embedded systems that run a small set of applications in a limited runtime environment. Local stores are problematic in general-purpose systems because they add to process state on context switches, and because they require fast d...

Remarkable progress was recently achieved in the studies on molecular regulators of iron metabolism. Among the main regulators, storage iron, iron absorption, erythropoiesis and hepcidin interact in keeping iron homeostasis. Diseases with gene-mutations resulting in iron overload, iron deficiency, and local iron deposition have been introduced in relation to the regulators of storage iron metab...

Considerable effort has been expended over the last decade on the production of persistent stores, for example CMS POMS, CPOMS, MONADS and Thatte's Persistent Memory. These generally did not provide for concurrent access to the store, and included no support for distribution. In this paper we investigate the distribution of persistent stores, including the issues of uniformity, unbounded size, ...

In response to lack of access to healthy foods, many low-income communities are instituting local healthy corner store programs. Some stores also participate in the United States Department of Agriculture's Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) and the Supplemental Nutrition Assistance Program (SNAP). This study used two assessment tools to compare the he...