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Although Flash Memory based Solid State Drive (SSD) exhibits high performance and low power consumption, a critical concern is its limited lifespan along with the associated reliability issues. In this paper, we propose to build a Content-Aware Flash Translation Layer (CAFTL) to enhance the endurance of SSDs at the device level. With no need of any semantic(More)
—BitTorrent (BT) has carried out a significant and continuously increasing portion of Internet traffic. While several designs have been recently proposed and implemented to improve the resource utilization by bridging the application layer (overlay) and the network layer (underlay), these designs are largely dependent on Internet infrastructures, such as(More)
MapReduce has become an effective approach to big data analytics in large cluster systems, where SQL-like queries play important roles to interface between users and systems. However, based on our Face book daily operation results, certain types of queries are executed at an unacceptable low speed by Hive (a production SQL-to-MapReduce translator). In this(More)
Tian Luo is a doctoral student in the Department of Educational Studies at Ohio University. Her research interests centre on using social media and social technologies to facilitate student learning in formal and informal educational settings. Email: Abstract: This study critically analyzed the current body of published research on microblogging in(More)
We propose an I/O classification architecture to close the widening semantic gap between computer systems and storage systems. By <i>classifying</i> I/O, a computer system can request that different classes of data be handled with different storage system <i>policies</i>. Specifically, when a storage system is first initialized, we assign performance(More)
BACKGROUND Human monocytotropic ehrlichiosis is an emerging life-threatening zoonosis caused by obligately intracellular bacterium, Ehrlichia chaffeensis. E. chaffeensis is transmitted by the lone star tick, Amblyomma americanum, and replicates in mononuclear phagocytes in mammalian hosts. Differences in the E. chaffeensis transcriptome in mammalian and(More)
Our previous studies have demonstrated that mice with reduced or absent serotonin transporter (SERT+/- and SERT-/- mice, respectively) are more sensitive to stress relative to their SERT normal littermates (SERT+/+ mice). The aim of the present study was to test the hypothesis that the hypothalamic-pituitary-adrenal (HPA) axis and its feedback regulation(More)
As storage systems become increasingly heterogeneous and complex, it adds burdens on DBAs, causing suboptimal performance even after a lot of human efforts have been made. In addition, existing monitoring-based storage management by access pattern detections has difficulties to handle work-loads that are highly dynamic and concurrent. To achieve high(More)
Increased expression of phospholipid transfer protein (PLTP) was observed in the brains of Alzheimer's disease (AD) patients; however, the role of PLTP in the progress of AD is still poorly understood. The objective of this study was to evaluate the effect of PLTP deficiency on the recognition and metabolism of amyloid-β (Aβ) in mice. We performed the(More)
The aim of the present study is to test a hypothesis that 5-HT(1A) and 5-HT(2C) receptors in the amygdala play an important role in the regulation of anxiety behaviors. We examined alterations in anxiety-like behaviors after manipulation of the expression of 5-HT(1A) and 5-HT(2C) receptors in the amygdala using recombinant adenovirus approaches. Recombinant(More)