The demand for pervasive computing applications has increased. Additionally, the large number of different devices and features per device make it difficult to quickly respond to such demand and to comply with ever-increasing quality and reuse requirements. A product line approach in this domain is essential in order to meet these goals. In this context, a central issue that must be addressed b...

Aspect-oriented programming captures crosscutting concerns by introducing the aspect modularity construct. While most of the aspects presented to date result from domainand modeling-related crosscutting, we show how aspect-oriented programming can further assist the software development process. Through various examples we study the use of aspectoriented methods in third-party system integration.

In this paper we study the Arc Orienteering Problem in directed and undirected graphs. To the best of our knowledge, we give the fist approximation algorithms for both the undirected and the directed versions of the problem. Our main results are the following: (i) We give an O( log 2(m) log log(m) )−approximation algorithm for the AOP in directed graphs, where m is the number of arcs of the gra...

This report discusses experiences applying AspectJ [1] in a consulting project at IBM. The purpose of this project was to evaluate the suitability of AspectJ for modularizing crosscutting concerns in a middleware product line. This report describes and assesses the design approaches, tools integration, and cultural impact.

OBJECTIVES To investigate the different effects of changes in the occlusal plane, incisors inclination, and maxillary intercanine width on the curvature of the smiling line. MATERIALS Records of 46 subjects (28 females and 18 males, mean age 16.6 ± 4.2 years) with incisor class II division 1 malocclusions were selected. All subjects had four premolar extractions and were treated with preadjus...

This paper proposes an approach to implement Metropolis quantity manager mechanism in Ptolemy II, by utilizing the AspectJ which adds to Java aspect-oriented programming (AOP) capabilities. The benefits and limitations of this approach are also discussed.

Consumer safety risk assessment of skin sensitization requires information on both consumer exposure to the ingredient through product use and the hazardous properties of the ingredient. Significant progress has been made in determining the hazard potential of ingredients without animal testing. However, hazard identification is insufficient for risk assessment, and an understanding of the dose...

Spray-drying of clear precursor solution containing inorganic-organic hybrid species and EO(n)PO(m)EO(n) triblock copolymer at low temperature, followed by treatment in acetone to remove the triblock copolymer, afforded spherical particles of aluminium organophosphonate (AOP) with uniform mesopores.

The phenomenon of Cavitation gives rise to a number of interesting physicalchemical effects which can be employed to isolate and oxidize contaminants in water. The micro bubbles generated by pressure pulses inside a liquid act as small reactors, reaching extreme P-T conditions during short periods of time and generating highly oxidant radicals such as OH·. This chemical behaviour is analogous t...

| Neoplasms are microcosms of evolution. Within a neoplasm, a mosaic of mutant cells compete for space and resources, evade predation by the immune system and can even cooperate to disperse and colonize new organs. The evolution of neoplastic cells explains both why we get cancer and why it has been so difficult to cure. The tools of evolutionary biology and ecology are providing new insights i...