Apical and basolateral determinants specify and maintain membrane domains in epithelia. Here, we identify new roles for two apical surface proteins – Cadherin 99C (Cad99C) and Stranded at Second (SAS) – in conferring apical character in Drosophila tubular epithelia. Cad99C, the Drosophila ortholog of human Usher protocadherin PCDH15, is expressed in several embryonic tubular epithelial structur...

A simple relaxation of two rows of a simplex tableau is a mixed integer set consisting of two equations with two free integer variables and non-negative continuous variables. Recently Andersen et al. [2] and Cornu ́ejols and Margot [13] showed that the facet-defining inequalities of this set are either split cuts or intersection cuts obtained from lattice-free triangles and quadrilaterals. Throu...

While most people tacitly understand what context is, they find it difficult to explain. The term “context-aware system” was first defined by Schilit et al. (1994) as software that “adapts according to its location of use, the collection of nearby people and objects, as well as changes to those objects over time”. We adopt the definition of context given by Dey (2001), “Context is any informati...

In this paper we present an implementation proposal of a proactive context-aware asset search and retrieval tool focusing in reducing the problem of “no attempt to use”, identified by Frakes in [1], by reducing the user effort of query formulation with proactive search, and using context focusing on the idea that “by improving the computer’s access to context, we increase the richness of commun...

Work on obtaining optimal main effect plans in non-orthogonal blocks was initiated recently by Mukerjee, Dey & Chatterjee (2002), who gave a set of sufficient conditions for a main effect plan to be universally optimal under possibly non-orthogonal blocking and also suggested a construction procedure for obtaining such block designs. Their method is however, not applicable for all factorials. I...

he 2002 Summer School on Ubiquitous and Pervasive Computing was organized and run by a team of volunteers from ETH Zurich between 7th and 14th of August. The school was situated at the beautiful Dagstuhl Castle in Germany, close to the border of Luxembourg and France, and built on the success of the Ubiquitous Computing Seminar held in the same location the previous year. The lecturers were Joh...

Nested orthogonal arrays are useful in obtaining space-filling designs for an experimental set up consisting of two experiments, the expensive one of higher accuracy to be nested in a larger inexpensive one of lower accuracy. Systematic construction methods of some families of symmetric and asymmetric nested orthogonal arrays were provided recently by Dey [Discrete Math. 310 (2010), 2831–2834]....

Title: Discordance in Self-Report and Observation Data on Mistreatment of Women by Providers during Childbirth in Uttar Pradesh, India Authors: Arnab Dey ([email protected]) Holly Shakya ([email protected]) Dharmendra Chandurkar ([email protected]) Sanjiv Kumar ([email protected]) Arup Das ([email protected]) John Anthony ([email protected]) Mrunal Shetye (Mrunal.Shetye@gatesfoun...

One form of information visualization is called ambient display. It is defined as the use of aesthetically pleasing displays of information which sit on the periphery of a user’s attention (Manko, Dey, Hsieh, Kientz, Lederer and Ames 2003). Financial visualization is the practice of making large financial datasets into images . In this paper, we describe a research project which uses watercolor...