Development of meteoroid simulators for hypervelocity impact studies

Developing aluminum meteoritic simulators for hypervelocity impact test using shaped charge

A Laboratory Study of the Effect of Wet Pressing and Pulp Freeness on the Hygroexpansivity of Sulphite Paper

Since so many of today\u27s papers are used for applications which require a low hygroexpansivity this property of paper is becoming increasingly important. There are many different types of paper which must be stable against changes in dimensions. Papers used in such diverse applications as recording charts, punch cards, paper recording tapes, and packaging boxes all must be stable against dimensional changes in order to function properly in their usage. In the area of printing papers there is a big demand for dimensionally stable paper. Because offset paper is repeatedly exposed to a wet blanket during the color printing process it must be especially stable. If there is any change in the dimensions of the paper between color applications the whole printing job will be out of register. This is a very large waste and a high added expense. The manufacture of dimensionally stable paper is, therefore, an important concern of a large segment of the paper industry. For thesis work the author desired to work on a problem which is important to a large portion of the paper industry. The problem of hygroexpansivity met all of the author\u27s requirements for a suitable thesis topic. It is an important problem. It is a problem which has not been solved and over which there is much controversy. It is a problem with which the author was not familiar and therefore would be very educational. Finally, it is a problem with which the author is very interested. Since the author is interested in developments which can be used directly in production; the areas of pulp freeness and pressure of wet pressing were chosen. Both of these are variables over which the production man has some control. The pressure used on the wet presses on the paper machine can be varied over a definite range without affecting the operation of the machine. The degree of refining and the severity of refining of the stock can be controlled over a wide range. By making adjustments on these two variables, the properties of the finished sheet can be changed considerably. It is the purpose of this investigation to find if there are any methods of pressing and refining which will lead to a more stable sheet of paper. In order to make an intelligent laboratory investigation of the problem of hygroexpansivity it was necessary to first investigate the work that has been done on the problem by others. Therefore, a survey of the literature was made to find what previous laboratory investigations had been made, and what knowledge in general was known in relation to the problem

Development and testing of advanced shaped charge meteoritic simulators. Part II - Calibration of flight guns

Calibration of flight guns for advanced shaped charge meteoritic simulator

An evaluation of the Department of Health’s Health and Social Care Volunteering Fund

The Health and Social Care Volunteering Fund (HSCVF) is an innovative programme that was established in 2009 by the Department of Health (DH) to build organisational and community capacity for volunteering through a national and local grant scheme. The HSCVF has offered both funds and tailored support to health and social care projects delivered by Voluntary, Community and Social Enterprise (VCSE) organisations. The HSCVF is managed by a partnership led by Ecorys and with expertise from leading national voluntary sector organisations: Attend, Community Service Volunteers (CSV) and Primetimers. To date the HSCVF has funded a total of 157 local and national projects, of which 114 are currently live. This report presents findings from an evaluation of the HSCVF with a specific focus on the 2010/2011 national and local projects, conducted by a team from the Institute for Health & Wellbeing at Leeds Metropolitan University. It presents evidence on the extent to which, how and in what ways the HSCVF programme has built organisational and community capacity across the national and local HSCVF projects, as well as on the health and social outcomes that resulted

Collaging as Embodied Method: The Use of Collage in a Study of American Sign Language (ASL) Interpreters\u27 Experiences

This methodological essay describes the generativity of collaborative collaging in a qualitative inquiry project with American Sign Language (ASL) interpreters who serve D/deaf students within a public university. Sign language interpreting is a demanding profession requiring physical endurance, creativity, and quick mental processing to switch between spoken and sign language. Interpreters’ visual communicative culture aligns conceptually with the embodied arts-based, visual, and tactile research technique of collaging. We first introduce collaging scholarship to ground our discussion of using collaging as a method within this case study of ASL interpreters. We then provide an overview of ASL interpreter research and our case study to situate the collaging method used alongside other approaches, asking, “How was collaging a productive method for exploring interpreters’ understanding of their work experiences?” We describe the use of the method and the productivity of interpreters’ collaging for surfacing embodied experiences, fueling collaborative meaning-making, and showing rather than telling aspects of interpreters’ labor in another expressive language. We conclude by identifying the value of collaborative collaging in this case study and for other researchers, issues, and contexts

Effect of trail bifurcation asymmetry and pheromone presence or absence on trail choice by Lasius niger ants

During foraging, ant workers are known to make use of multiple information sources, such as private information (personal memory) and social information (trail pheromones). Environmental effects on foraging, and how these interact with other information sources, have, however, been little studied. One environmental effect is trail bifurcation asymmetry. Ants forage on branching trail networks and must often decide which branch to take at a junction (bifurcation). This is an important decision, as finding food sources relies on making the correct choices at bifurcations. Bifurcation angle may provide important information when making this choice. We used a Y-maze with a pivoting 90° bifurcation to study trail choice of Lasius niger foragers at varying branch asymmetries (0°, [both branches 45° from straight ahead], 30° [branches at 30° and 60° from straight ahead], 45°, 60° and 90° [one branch straight ahead, the other at 90°]). The experiment was carried out either with equal amounts of trail pheromone on both branches of the bifurcation or with pheromone present on only one branch. Our results show that with equal pheromone, trail asymmetry has a significant effect on trail choice. Ants preferentially follow the branch deviating least from straight, and this effect increases as asymmetry increases (47% at 0°, 54% at 30°, 57% at 45°, 66% at 60° and 73% at 90°). However, when pheromone is only present on one branch, the graded effect of asymmetry disappears. Overall, however, there is an effect of asymmetry as the preference of ants for the pheromone-marked branch over the unmarked branch is reduced from 65%, when it is the less deviating branch, to 53%, when it is the more deviating branch. These results demonstrate that trail asymmetry influences ant decision-making at bifurcations and that this information interacts with trail pheromone presence in a non-hierarchical manner

Health promotion education in changing and challenging times: reflections from the UK

Health education has changed in numerous ways since the inception of this journal, with many developments moving the discipline forward in ways that perhaps were not envisaged 75 years ago. Whilst there have been reported concerns about the decline of the discipline of health promotion and therefore associated worries about education, the contemporary evidence base has grown (Woodall et al 2017 in press), which we argue supports the delivery of quality education and the development of capable, skilled practitioners. Pedagogy has further developed too, and technology now enables health education to have a broader global reach through online teaching, social media and open-access publications. Many global challenges remain, and the UK context is one in which both health education and indeed practice faces major trials despite the traditions and approaches to health education developed by those educated and trained in this setting over a period of many years. We argue that the broader UK policy environment remains a challenge to current health promotion education, research and practice

Health promotion: reconfiguring nurses’ practice to reduce social inequalities

Inequalities in people's health due to economic or social circumstances remain a persistent challenge in the UK, with people from disadvantaged communities disproportionately likely to die earlier and experience more health issues than the general population. Health promotion has a vital role in reversing health inequalities and requires a focus on structural and political-level determinants of health, rather than individuals' lifestyle choices. However, while health promotion is a significant aspect of nurse education curricula, individual nurses may experience role confusion regarding the application of health promotion in their practice. Therefore, a shift is required in nurse education and training on health promotion, as well as its practical implementation. This article suggests some approaches that could be taken to reconfigure the role of nurses in health promotion