Performance evaluation and geologic utility of LANDSAT 4 TM and MSS scanners

Experiments using artificial targets (polyethylene sheets) to help calibrate and evaluate atmospheric effects as well as the radiometric precision and spatial characteristics of the NS-001 and TM sensor systems were attempted and show the technical feasibility of using plastic targets for such studies, although weather precluded successful TM data acquisition. Tapes for six LANDSAT 4 TM scenes were acquired and data processing began. Computer enhanced TM simulator and LANDSAT 4 TM data were compared for a porphyry copper deposit in Southern Arizona. Preliminary analyses performed on two TM scenes acquired in the CCT-PT format, show the TM data appear to contain a marked increase in geologically useful information; however, a number of instrumental processing artifacts may well limit the ability of the geologist to fully extract this information

Temporal and dimensional effects in evolutionary graph theory

The spread in time of a mutation through a population is studied analytically and computationally in fully-connected networks and on spatial lattices. The time, t_*, for a favourable mutation to dominate scales with population size N as N^{(D+1)/D} in D-dimensional hypercubic lattices and as N ln N in fully-connected graphs. It is shown that the surface of the interface between mutants and non-mutants is crucial in predicting the dynamics of the system. Network topology has a significant effect on the equilibrium fitness of a simple population model incorporating multiple mutations and sexual reproduction. Includes supplementary information.Comment: 6 pages, 4 figures Replaced after final round of peer revie

Geologic applications of thermal inertia image using HCMM data

The author has identified the following significant results. Comparison of a simulated HCMM image of the Pisgah Crater, California test site obtained from aircraft data with an image generated from the preliminary satellite data tape of the area indicates that the HCMM satellite data appears much as predicted by the simulation

Geologic application of thermal inertia imaging using HCMM data

There are no author-identified significant results in this report

Ionic Liquid Epoxy Resin Monomers

Ionic liquid epoxide monomers capable of reacting with cross-linking agents to form polymers with high tensile and adhesive strengths. Ionic liquid epoxide monomers comprising at least one bis(glycidyl) N-substituted nitrogen heterocyclic cation are made from nitrogen heterocycles corresponding to the bis(glycidyl) N-substituted nitrogen heterocyclic cations by a method involving a non-nucleophilic anion, an alkali metal cation, epichlorohydrin, and a strong base

Wireless Accelerometer for Neonatal MRI Motion Artifact Correction

A wireless accelerometer has been used in conjunction with a dedicated 3T neonatal MRI system installed on a Neonatal Intensive Care Unit to measure in-plane rotation which is a common problem with neonatal MRI. Rotational data has been acquired in real-time from phantoms simultaneously with MR images which shows that the wireless accelerometer can be used in close proximity to the MR system. No artifacts were observed on the MR images from the accelerometer or from the MR system on the accelerometer output. Initial attempts to correct the raw data using the measured rotational angles have been performed, but further work will be required to make a robust correction algorithm

Who calls the tune? Participation and partnership in research

yesThis paper explores issues of partnership and participation in research and evaluation, drawing on the experiences of evaluating a move from hostel accommodation to independent supported living for people with mental health difficulties or learning disabilities. The service change project involved a partnership between a local authority and a housing association with over 300 people moving into their own tenancies in newly-built flats and bungalows. The accompanying evaluation was designed on a model of service user participation and action research and was specifically concerned to explore the impact of the changes on people’s actual or perceived social inclusion into local communities. Ten service user and carer researchers, some of whom were directly involved in the move from hostel to independent living, were recruited and worked with ‘professional’ researchers to examine both the process and the outcomes of the move. The work will be viewed through the insights offered by feminist, transformative and participatory approaches to research. The ‘positioning’ of the researcher in relation to boundaries and the construction of the ‘other’ will be considered, emphasising an approach grounded in reflexivity and an acknowledgement of the complex ethical issues involved. A key feature of this study has been the negotiation involved between a complex change project and a participatory evaluation design. Learning points from the work so far will also be considered in terms of their wider application in future evaluations of complex change projects that involve multiple stakeholders.Published online Nov 2012