Extensive research on system support for enabling I/O-intensive applications to achieve performance close to the limits imposed by the hardware suggests two main approaches: Low overhead I/O protocols and the flexibility to customize I/O policies to the needs of applications. One way to achieve both is by supporting user-level access to I/O devices, enabling user-level implementations of I/O pr...

In a recent contribution, we examined the effect of 10- and 14-center circuits on the nucleus-independent chemical shifts NICSs using multicenter bond indices (MCBIs) (Fias et al., J Comput Chem 2008, 29, 358). In this study, the nonlocal contributions to the NICS are further investigated for a larger set of polycyclic aromatic hydrocarbons (PAHs). To achieve this, the NICSs are predicted using...

With the ability of simultaneous transmissions, multi-channel multi-interface wireless mesh networks (WMNs) have emerged with great potential in the improvement of network throughput and fairness. However, most proposed channel assignment algorithms for WMNs made an assumption that the network interface cards (NICs) are evenly assigned to the mesh routers. In this paper, we investigate the prob...

We report on the construction and application of a new bond-current additivity scheme for polybenzenoid hydrocarbons. The method is based identification smaller substructures contained in system, up to tricyclic subunits. Thus, it enables prediction any cata-condensed unbranched hydrocarbon, using library consisting only four building blocks. predicted bond-currents can then be used generate Nu...

This paper examines the trends in strategic technology partnering (STP) by firms from developing countries over the period 1980-94. The evidence shows that a small group of countries, namely the Asian NICs and Eastern Europe dominate STP activity. We also examine differences in organisational modes and how these have evolved over time, suggesting an increasing similarity between the NICs and Tr...

In this contribution, we have evaluated the (anti)aromatic character of thirty-four different borole compounds in their neutral and reduced states based on two aromaticity indices, namely nucleus-independent chemical shift (NICS) and multicenter indices (MCI), calculated at the PBE0/6-31+G(d,p) level of theory. Both indices corroborate the notion that neutral borole compounds are antiaromatic a...

A large number of local aromaticity indices for the benzenoid rings in polyaromatic hydrocarbons is computed. The results are interpreted, supporting Clar's hypothesis, and mutual correlations are investigated. It is shown that there are good correlations between all indices that strictly allow comparing benzenoid character. Poor correlations are found with NICS. A rationale is offered, yieldin...

This study reports the use of multicenter bond indices as a new tool for the quantitative characterization of homoaromaticity. The approach was applied to the series bicyclic systems whose homoaromaticity was recently discussed in terms of traditional aromaticity index, namely, NICS. In this study we found that the multicenter bond indices are indeed able to quantify the degree of homoaromatici...

Operating systems fail both to efficiently exploit, and to effectively manage, the considerable hardware resources of modern network interface controllers. We survey the kinds of hardware facilities available and their applicability, and then investigate (and critique) the reasons why OS designers eschew core support for such features. We then describe Dragonet, a new network stack design based...