Diverse Evill Persons: Echoes in the Landscape, Echoes in the Archives

This is an account of a process, the working together of cross-disciplinary insights between an artist and a historian, to create a means by which members of the public might encounter the past on their own terms. In the summer of 2009, the historian [MB] and the conceptual artist [PB] decided to collaborate on a project based around events at Cannon Hall, Cawthorne in the West Riding of Yorkshire, 1673-74. The events are located in the B family genealogy but carry in them echoes of deeper social and economic forces in the past, as well as relevance to modern debates about crime, welfare and justice. The aim of the project is to create an exhibition/installation within which members of the public can experience what it means to make sense of the past through the prism of the present. The project is intended to challenge normative approaches in museology and the interpretation of heritage objects, places and documents. The article explores the foundational processes and concepts

The Future of Electric Furnaces in the Metal Industries of India

S INCE I know little or nothing about "Light metals", I feel that my first task is to find some excuse for occu-pying this rostrum. Perhaps the organisers of this Sym- posium felt that a general paper dealing with the future of electric furnaces in the metal industries of India would promote a profitable and constructive discussion and at the same time provide some useful food for thought. Even an outline of the development and use of electric furnaces in the iron and steel industry may inspire ideas for those engaged in other metal industries

The Relation of Pilot Plants to Full Scale Operation

The author's chief interest in pilot plants is as a means of practical instruction. At the Banaras Hindu University a number of pilot plants have been installed so as to impart some practical Idea of metallurgical processes to final year students. These pilot plants include a sintering plant, several small size cupolas, an LD converter, a basic lined side blown converter, indirect arc furnace & high frequency electric furnaces. The latest addition to this range of pilot plants is a small scalp Edwards vacuum melting unit. In addition to their use for instructional purposes, it is hoped, as candidates present themselves, that these plants will be more fully employed in post- graduate res-earch, which it is felt will be of considerable importance to the development of the iron & steel industry in India. Post-graduate research, which it is felt will be of consi-derable importance to the development of the iron and steel industry in India. Post-graduate work of this nature must play an important role in the provision of thoroughly trained personnel for the rapidly growing industry in India

Evidence for coal forest refugia in the seasonally dry Pennsylvanian tropical lowlands of the Illinois Basin, USA

The Moscovian plant macroflora at Cottage Grove southeastern Illinois, USA, is a key example of Pennsylvanian (323–299 Million years ago) dryland vegetation. There is currently no palynological data from the same stratigraphic horizons as the plant macrofossils, leaves and other vegetative and reproductive structures, at this locality. Consequently, reconstructions of the standing vegetation at Cottage Grove from these sediments lack the complementary information and a more regional perspective that can be provided by sporomorphs (prepollen, pollen, megaspores and spores). In order to provide this, we have analysed the composition of fossil sporomorph assemblages in two rock samples taken from macrofossil-bearing inter-coal shale at Cottage Grove. Our palynological data differ considerably in composition and in the dominance-diversity profile from the macrofossil vegetation at this locality. Walchian conifers and pteridosperms are common elements in the macroflora, but are absent in the sporomorph assemblages. Reversely, the sporomorph assemblages at Cottage Grove comprise 17 spore taxa (∼16% and ∼63% of the total assemblages) that are known from the lycopsid orders Isoetales, Lepidodendrales and Selaginallales, while Cottage Grove’s macrofloral record fails to capture evidence of a considerable population of coal forest lycopsids. We interpret our results as evidence that the Pennsylvanian dryland glacial landscape at Cottage Grove included fragmented populations of wetland plants living in refugia

The feasibility of using Microsoft Kinect v2 sensors during radiotherapy delivery

Consumer-grade distance sensors, such as the Microsoft Kinect devices (v1 and v2), have been investigated for use as marker-free motion monitoring systems for radiotherapy. The radiotherapy delivery environment is challenging for such sensors because of the proximity to electromagnetic interference (EMI) from the pulse forming network which fires the magnetron and electron gun of a linear accelerator (linac) during radiation delivery, as well as the requirement to operate them from the control area. This work investigated whether using Kinect v2 sensors as motion monitors was feasible during radiation delivery. Three sensors were used each with a 12 m USB 3.0 active cable which replaced the supplied 3 m USB 3.0 cable. Distance output data from the Kinect v2 sensors was recorded under four conditions of linac operation: (i) powered up only, (ii) pulse forming network operating with no radiation, (iii) pulse repetition frequency varied between 6 Hz and 400 Hz, (iv) dose rate varied between 50 and 1450 monitor units (MU) per minute. A solid water block was used as an object and imaged when static, moved in a set of steps from 0.6 m to 2.0 m from the sensor and moving dynamically in two sinusoidal-like trajectories. Few additional image artifacts were observed and there was no impact on the tracking of the motion patterns (root mean squared accuracy of 1.4 and 1.1 mm, respectively). The sensors' distance accuracy varied by 2.0 to 3.8 mm (1.2 to 1.4 mm post distance calibration) across the range measured; the precision was 1 mm. There was minimal effect from the EMI on the distance calibration data: 0 mm or 1 mm reported distance change (2 mm maximum change at one position). Kinect v2 sensors operated with 12 m USB 3.0 active cables appear robust to the radiotherapy treatment environment

The search for active learning: Lessons from a happy accident

This article suggests that the concept of ‘active learning’ has different meanings. These meanings are created in the dynamic and variable relationships between the uses of learning technologies and approaches to pedagogy. Institutions play a key role in mediating these relationships, privileging some meanings of ‘active learning’ over others. More dialogical forms of active learning call for changes in the mediating role of the institution. This article draws on a case study of the use of Electronic Voting Systems to teach social research methods

Sedimentology and stratigraphy of the type section of the Pennsylvanian Boss Point Formation, Joggins Fossil Cliffs, Nova Scotia, Canada

The 1125-m-thick type section of the Pennsylvanian Boss Point Formation is well exposed along the shore of the Bay of Fundy in Nova Scotia. We provide the first comprehensive account of the entirety of this formation, which comprises nearly one-third of the stratigraphic thickness of the Joggins Fossil Cliffs UNESCO World Heritage Site. The basal Chignecto Bay Member (0–91.5 m) is composed of redbeds, single-storey channel bodies with northerly paleoflow, and thin palustrine limestones. The middle Ward Point Member (91.5–951.7 m) contains up to 16 megacycles composed of alternations between thick packages of braided fluvial sandstone and fine-grained deposits. Although regional studies of the Boss Point Formation suggest that the fine-grained deposits are largely composed of lacustrine sediments, these intervals consist largely of poorly drained and well-drained floodplain deposits in the type section. The facies variations and southeast-directed paleoflow in the Ward Point Member record modest uplift associated with the growth of the salt-cored Minudie Anticline. The North Reef Member (951.7–1125 m) is composed of redbeds and two distinctive multistorey channel bodies. This uppermost member records a shift to more arid, oxidizing conditions, was the precursor to a major phase of salt withdrawal, and represents a transition to the overlying Little River Formation. The sedimentological framework, revised stratigraphy, and detailed measured section and map will provide a foundation for future study of this remarkable Pennsylvanian exposure