703 research outputs found
Sustainability reporting and value creation
This paper revisits Rob Grayās ([2006]. āSocial, Environmental and Sustainability Reporting and Organisational Value Creation? Whose Value? Whose Creation?ā Accounting, Auditing & Accountability Journal 19 (6): 793ā819.) critique of the state of sustainability reporting and its relationship with value creation. It critiques recent developments in the fields of sustainability reporting standard setting and current thinking on value creation in light of Robās analysis
Quantitative Analysis of Cell Nucleus Organisation
There are almost 1,300 entries for higher eukaryotes in the Nuclear Protein Database. The proteins' subcellular distribution patterns within interphase nuclei can be complex, ranging from diffuse to punctate or microspeckled, yet they all work together in a coordinated and controlled manner within the three-dimensional confines of the nuclear volume. In this review we describe recent advances in the use of quantitative methods to understand nuclear spatial organisation and discuss some of the practical applications resulting from this work
Report of the panel on the land surface: Process of change, section 5
The panel defined three main areas of study that are central to the Solid Earth Science (SES) program: climate interactions with the Earth's surface, tectonism as it affects the Earth's surface and climate, and human activities that modify the Earth's surface. Four foci of research are envisioned: process studies with an emphasis on modern processes in transitional areas; integrated studies with an emphasis on long term continental climate change; climate-tectonic interactions; and studies of human activities that modify the Earth's surface, with an emphasis on soil degradation. The panel concluded that there is a clear requirement for global coverage by high resolution stereoscopic images and a pressing need for global topographic data in support of studies of the land surface
Advanced information processing system: Authentication protocols for network communication
In safety critical I/O and intercomputer communication networks, reliable message transmission is an important concern. Difficulties of communication and fault identification in networks arise primarily because the sender of a transmission cannot be identified with certainty, an intermediate node can corrupt a message without certainty of detection, and a babbling node cannot be identified and silenced without lengthy diagnosis and reconfiguration . Authentication protocols use digital signature techniques to verify the authenticity of messages with high probability. Such protocols appear to provide an efficient solution to many of these problems. The objective of this program is to develop, demonstrate, and evaluate intercomputer communication architectures which employ authentication. As a context for the evaluation, the authentication protocol-based communication concept was demonstrated under this program by hosting a real-time flight critical guidance, navigation and control algorithm on a distributed, heterogeneous, mixed redundancy system of workstations and embedded fault-tolerant computers
If it won't explode, hit it with a hammer: Facilitating chemical reactions at a liquid surface
Abstract only availableCollisional energy transfer at a gas-liquid interface may play an important role in the initial decomposition of multiphase combustibles. The energy feedback of hot, energetic, gaseous atoms, in this case Ar, striking the liquid surface can potentially impart enough energy to break one of the liquid's bonds in a homolytic fashion thus creating radicals necessary for a resulting explosive chain reaction. Liquid nitromethane (CH3NO2) is a prototypical explosive and is modeled here as a simple diatomic consisting of one methyl (CH3) and one nitro (NO2) groups. The methyl and nitro groups are shown through MP2 6-311+G (2d, 2p) calculations to be the most likely resulting decomposition fragments; as such, focus is placed on the breaking of the C-N bond. For this study, the attractive term of the gas-liquid interaction potential is assumed to be zero to find the limit of Ar-nitromethane interaction. The energy transfer is studied by running simulations, using the DL_Poly_2 program, of Ar impinging the liquid nitromethane from zero degrees to the surface normal and over multiple incident energies. The results are then analyzed for energy transfer and C-N bond breakage.Stevens' Chemistry Progra
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