Transactional flash (TxFlash) is a novel solid-state drive (SSD) that uses flash memory and exports a transactional interface (WriteAtomic) to the higher-level software. The copy-on-write nature of the flash translation layer and the fast random access makes flash memory the right medium to support such an interface. We further develop a novel commit protocol called cyclic commit for TxFlash; t...

BACKGROUND For the purpose of providing excellent patient care, residents need to be strong, effective leaders. The lack of clinical leadership is alarming given the detrimental effects on patient safety. The objective of the study was to assess whether a leadership training addressing transactional and transformational leadership enhances leadership skills in residents. METHODS A volunteer s...

We present a theory for the design and verification of distributed transactions in dynamically reconfigurable systems. Despite several formal approaches have been proposed to study distributed transactional behaviours, the inter-relations between failure propagation and dynamic system reconfiguration still need investigation. We propose a formal model for transactions in Service Oriented Archit...

Parallel snapshot isolation (PSI) is a standard transactional consistency model used in databases and distributed systems. We argue that PSI is also a useful formal model for software transactional memory (STM) as it has certain advantages over other consistency models. However, the formal PSI definition is given declaratively by acyclicity axioms, which most programmers find hard to understand...

The relevance of transactional and relational marketing variables in relational exchanges is now well established in the marketing literature. However, the knowledge about their relative effectiveness and their optimal mix over time remains very sparse. An analytical model is proposed to help determine optimal decision rules for transactional and relational marketing efforts. Some of the main r...

Transactional replication is a new enabling technology for service replication. Service replication means that a service runs on a group of processes (service replicas) that work together to execute requests issued by external clients. The characteristic feature of transactional replication is that client requests can be processed on a single replica concurrently as atomic transactions that can...

In a sensor network environment, elements such as message rate, message size, mote frequency, and message routing can reveal information about the sensors deployed, frequency of events monitored, network topology, parties deploying the network, and location of subjects and objects moving through the networked space. Collectively, we refer to these elements as transactional data. Where the con d...

Researchers have proposed transactional memory as a concurrency primitive to simplify the development of multithreaded programs. In this paper we present a new approach for supporting I/O operations in the context of transactional memory. Our approach provides isolation between the file operations of different transactions while allowing multiple transactions to concurrently perform I/O. To eas...

Mobile systems increasingly are being used for production-grade datacentered applications which require system support for transactional properties. For mobile applications, transactions can hide, to some extent, the infrastructure intrinsic to mobile systems, such as disconnection from the network, dozing, and storage limitations. In this paper, we introduce a framework to understand, specify,...

Designers are currently facing design problems that are not uniquely related to physical systems but transactional as well. Transactional processes (services) have had a steady growth during the last three decades and currently add more than 65% of global economic value. This study expands our understanding of designers’ interaction with ideation methods. We investigate a heuristic method known...