In analytical applications, database systems often need to sustain workloads with multiple concurrent scans hitting the same table. The Cooperative Scans (CScans) framework, which introduces an Active Buffer Manager (ABM) component into the database architecture, has been the most effective and elaborate response to this problem, and was initially developed in the X100 research prototype. We no...

The design of complex artifacts has increasingly become a cooperative process, with the detection and resolution of conflicts between design agents playing a central role. Effective tools for supporting the conflict management process, however, are still lacking. This paper describes a system called DCSS (the Design Collaboration Support System) developed to meet this challenge in design teams ...

With the growing number of users along with ever-increasing demand for higher data rates in modern wireless networks, interference has become the major barrier against efficient utilization of limited resources. On the other hand, opportunities for cooperation among radios also increase with the growing number of users, which potentially lead to better interference management. In traditional wi...

Managing patients in a shared-care context is a knowledge intensive activity. To support cooperative work in medical care, computer technology should either augment the capabilities of individual specialists and enhance their ability of interacting with each other and with computational resources. Thus, a major shift is needed from centralized first generation Hospital Information Systems to di...

Due to today’s increasingly complex processes in planning and design, knowledge management (KM) is becoming a crucial factor of success in the engineering sector. In a participatory design project we created a prototype for a process oriented KM system (CoLinK), which allows engineers to jointly model projects with generic process descriptions, creating a virtual engineering community within th...

Proto/Amorphous Cooperative Energy Management (PACEM) controls energy demand across an entire metropolitan area by coordinating the behavior of individual electrical appliances. The goal of this project is to demonstrate the feasibility of PACEM by showing smooth demand shaping and additive scaling using cheap, decentralized communication hardware, both in simulation and on a test system of 50-...

All construction projects can be considered as cooperative undertakings. Their strategic management and daily operations causes numerous interactions to occur, either among persons or among persons and resources. These interactions have been studied from various viewpoints but few researchers have focused on their visualization. The graphical representation of the cooperation is however a power...

Status signals are linked to fi ghting ability and enable competitors to gain access to resources without risking injury in aggressive combat. Th e relationship between testosterone (T), a hormone that mediates aggression, and signals of status is well studied in males, but little is known about the relationship between T and female signals of status. Female and male American goldfi nches Spinu...

s of studies carried out in Pakistan: A). The decreasing effectiveness of conventional malaria vector control methods has led to the re-emergence of environmental management as a possible alternate strategy for the reduction of mosquito vector breeding sites and health risks associated with them. The design and operation of irrigation systems can be modified to prevent the proliferation of mala...

Recent research has demonstrated that noise from natural gas development negatively impacts sage-grouse (Centrocercus urophasianus) abundance, stress levels, and behaviors. Other types of anthropogenic noise sources are similar to gas-development noise and, thus, the response by sage-grouse is likely to be similar. The results of research suggest that effective management of the natural soundsc...