HCMM and LANDSAT imagery for geological mapping in northwest Queensland

The author has identified the following significant results. Photographic prints made from negatives of day-visible and day-IR cover of selected areas were compared with enhanced color composites generated from LANDSAT computer compatible tapes and films. For geological mapping purposes, HCMM imagery is of limited value. While large scale features like the Mikadoodi anticlinorium, contrasting lithological units, and major structures may be distinguished on day-visible and day-IR cover, the spectral bands are too broad and the resolution too coarse even for regional mapping purposes. The imagery appears to be most useful for drainage studies. Where drainage is seasonal, sequential imagery permits monitoring of broad scale water movement while the day-IR imagery yields valuable information on former channels. In plains areas subject to periodic change of stream courses, comparable IR cover at a larger scale would offer considerable potential for reconstruction of former drainage patterns essential for the correct interpretation of geochemical data relative to mineral exploration

Claiming but connected to work : Welfare at a (Social) Distance Rapid Report #1

This report presents the first findings from the Welfare at a (Social) Distance project, a major national research project investigating the benefits system during the COVID19 pandemic, funded by the Economic and Social Research Council as part of UK Research and Innovation’s rapid response to COVID-19. It draws upon a new survey of 2,364 new Universal Credit (UC)/Jobseekers’ Allowance (JSA) claimants (carried out between 25th May and 3rd June) to look at how far benefit claimants are connected to the world of work, helping to better understand the emerging picture from recent UK labour market statistics

Accelerated Electrons in Cassiopeia A: An Explanation for the Hard X-ray Tail

We propose a model for the hard X-ray (> 10 keV) emission observed from the supernova remnant Cas A. Lower hybrid waves are generated in strong (mG) magnetic fields, generally believed to reside in this remnant, by shocks reflected from density inhomogeneities. These then accelerate electrons to energies of several tens of keV. Around 4% of the x-ray emitting plasma electrons need to be in this accelerated distribution, which extends up to electron velocities of order the electron Alfven speed, and is directled along magnetic field lines. Bremsstrahlung from these electrons produces the observed hard x-ray emission. Such waves and accelerated electrons have been observed in situ at Comet Halley, and we discuss the viability of the extrapolation from this case to the parameters relevant to Cas A.Comment: 20 pages, 3 figures, aasTeX502, accepted in Ap

Non-take-up of benefits at the start of the COVID-19 pandemic

In this report, we look at the number of people eligible for UC but who didn't claim it, why they didn't claim, and their situation (funded by the Health Foundation)

Accelerated Electrons in Cassiopeia A: Thermal and Electromagnetic Effects

We consider in more detail a model previously proposed for the hard X-ray (>10 keV) emission observed from the supernova remnant Cas A, whereby electrons are accelerated by lower-hybrid waves and radiate bremsstrahlung. We consider both cold and thermal plasma limits of the modified two-stream instability that generates the lower-hybrid waves, and by studying time dependent ionization balance for various components of the Cas A ejecta and shocked circumstellar medium, find locations within the shell where one or other of the instabilities may occur. Either instability can be effective, with the cold plasma instability imposing fewer constraints on the shocked reflected ion population responsible for exciting the waves. The instability must be located in the ejecta shocked at the earliest times and therefore closest to the contact discontinuity where magnetic fields are expected to be the strongest. The energy deposited in this ejecta by collisions between accelerated and ambient electrons is broadly consistent with that required to reheat this ejecta to observed temperatures.Comment: 29 pages + 8 figures, accepted for publication by Ap

Reading with drama: relations between texts, readers and experiences

This article explores the intersections of drama and reading, specifically focusing on approaches that are situated within “drama in education.” Supported with a retrospective analysis, this article portrays the research, related practice and possible futures in drama education in relation to literacy and in particular to reading fiction as meaning making practice. This study is situated in a reassertion of the value of relational literacies through imaginative practices that dramatic modes generate and support. The article disrupts common misconceptions about the purposes and effects of drama in reading and establishes prominent research discourses and definitions across the history of drama and reading practices. By locating paradigmatic and practical opportunities in our analysis of contemporary research, we bring visibility to the intricacies of drama in education as a generative pedagogy in reading as relational meaning making work

Navigating pandemic social security : benefits, employment and crisis support during COVID-19

An expanding range of external actors and organisations have come to mediate the relationship between benefit claimants and the Department for Work and Pensions (DWP). Reflecting on the important role benefits, crisis and employment support play in the lives of claimants, this report looks at two dimensions of navigating social security in the UK today. The first section of this report draws on a large representative survey of working-age benefit claimants (i.e. aged 18–64) to establish the extent to which people access support when making a claim for benefits and how this differs according to key claimant characteristics. The second section of this report explores how COVID-19 has affected the coverage and quality of support that many benefit claimants rely on through case studies of four local areas (Leeds, Newham, Salford and Thanet). Here, we draw on qualitative interviews with 32 local support organisations and meetings with 13 national informants representing key stakeholder groups and service delivery organisations

Maximally-localized generalized Wannier functions for composite energy bands

We discuss a method for determining the optimally-localized set of generalized Wannier functions associated with a set of Bloch bands in a crystalline solid. By ``generalized Wannier functions'' we mean a set of localized orthonormal orbitals spanning the same space as the specified set of Bloch bands. Although we minimize a functional that represents the total spread sum_n [ _n - _n^2 ] of the Wannier functions in real space, our method proceeds directly from the Bloch functions as represented on a mesh of k-points, and carries out the minimization in a space of unitary matrices U_mn^k describing the rotation among the Bloch bands at each k-point. The method is thus suitable for use in connection with conventional electronic-structure codes. The procedure also returns the total electric polarization as well as the location of each Wannier center. Sample results for Si, GaAs, molecular C2H4, and LiCl will be presented.Comment: 22 pages, two-column style with 4 postscript figures embedded. Uses REVTEX and epsf macros. Also available at http://www.physics.rutgers.edu/~dhv/preprints/index.html#nm_wan

The Effective Fragment Molecular Orbital Method for Fragments Connected by Covalent Bonds

We extend the effective fragment molecular orbital method (EFMO) into treating fragments connected by covalent bonds. The accuracy of EFMO is compared to FMO and conventional ab initio electronic structure methods for polypeptides including proteins. Errors in energy for RHF and MP2 are within 2 kcal/mol for neutral polypeptides and 6 kcal/mol for charged polypeptides similar to FMO but obtained two to five times faster. For proteins, the errors are also within a few kcal/mol of the FMO results. We developed both the RHF and MP2 gradient for EFMO. Compared to ab initio, the EFMO optimized structures had an RMSD of 0.40 and 0.44 {\AA} for RHF and MP2, respectively.Comment: Revised manuscrip