5,015 research outputs found
The patriot band : the school cadets from their evolution to the Great War : thesis presented in partial fulfilment of the requirements for the degree of Master of Arts in History at Massey University
The writing of history consists in the complementary activities of analysis and reflection. A study of the school cadets in New Zealand from their evolution in the old established colleges till 1914, provides an opportunity for both these activities to be attempted through the medium of a relatively small but highly defined topic. As an institution, the cadets provide an interesting study in themselves, for by minutely observing the specialised activities of a large section of New Zealand society, namely its children together with those especially concerned with the cadets through education or defence, it is possible to gain a detailed understanding and insight into their beliefs and assumptions. The activities and attitudes of teachers, concerned military men, articulate members of the general public and where possible pupils, will each provide a slightly different vantage point from which to reconstruct this picture. [From Introduction
Measuring Confidentiality Risks in Census Data
Two trends have been on a collision course over the recent past. The first is the increasing demand by researchers for greater detail and flexibility in outputs from the decennial Census of Population. The second is the need felt by the Census Offices to demonstrate more clearly that Census data have been explicitly protected from the risk of disclosure of information about individuals. To reconcile these competing trends the authors propose a statistical measure of risks of disclosure implicit in the release of aggregate census data. The ideas of risk measurement are first developed for microdata where there is prior experience and then modified to measure risk in tables of counts. To make sure that the theoretical ideas are fully expounded, the authors develop small worked example. The risk measure purposed here is currently being tested out with synthetic and a real Census microdata. It is hoped that this approach will both refocus the census confidentiality debate and contribute to the safe use of user defined flexible census output geographies
Using GIS to Explore the Technical and Social Aspects of Site Selection for Radioactive Waste Disposal Facilities
This working paper reviews the current situation regarding radioactive waste disposal in the UK and questions the pursuance of a purely engineering approach to gaining public support. Past histories concerning the siting of nuclear industry facilities; power stations and latterly, waste repositories, are briefly discussed and used to demonstrate that more attention needs to be paid to the geographical and social science if current proposlas for a rock laboratory, and ultimately and operational repository, at Longlands Farm near Sellafield are to succeed. The usefulness of Geographical Information Systems (GIS) and associated spatial information technologies are highlighted. Suggestions are made as to how these may be made available for public use via the Internet in adopting a more open approach to public information, consultation and participation
A Gene Expression Signature for RSV: Clinical Implications and Limitations
Peter Openshaw discusses the challenges in advancing respiratory syncytial virus (RSV) treatments and the implications of a study by Mejias and colleagues using a newly identified gene signature for diagnosis and prediction of RSV severity. Please see later in the article for the Editors' Summary
Gas gain on single wire chambers filled with pure isobutane at low pressure
The gas gain of single-wire chambers filled with isobutane, with cell
cross-section 12x12 mm and wire diameters of 15, 25, 50 and 100 m, has
been measured at pressures ranging 12-92 Torr. Contrary to the experience at
atmospheric pressure, at very low pressures the gas gain on thick wires is
higher than that on thin wires at the same applied high voltage as was recently
shown. Bigger wire diameters should be used in wire chambers operating at very
low pressure if multiple scattering on wires is not an issue.Comment: 9 pages, 6 figure
Fuelwood stumpage : financing renewable energy for the world's other half
In many developing countries, households rely heavily on woodfuels (firewood and charcoal) as their main source of energy for cooking and heating. The internal trade in woodfuels is often sizable. African governments now collect stumpage fees of $30 million a year for fuelwood and charcoalwood, or only about 2 % of the selling price of the finished products. By charging an adequate fee for these wood resources, the authors argue woodfuels production and consumption can be made more efficient. In addition, governments would be better able to finance the investments in their forest sector that are needed to maintain a regular fuelwood supply and to prevent long term environmental damage. The authors outline the methods energy planners can use to estimate fuelwood values and discuss several problems that arise in assessing and collecting fuelwood stumpage fees.Silviculture,Environmental Economics&Policies,Forestry,Economic Theory&Research,Markets and Market Access
Measuring Confidentiality Risks in Census Data
Two trends have been on a collision course over the recent past. The first is the increasing demand by researchers for greater detail and flexibility in outputs from the decennial Census of Population. The second is the need felt by the Census Offices to demonstrate more clearly that Census data have been explicitly protected from the risk of disclosure of information about individuals. To reconcile these competing trends the authors propose a statistical measure of risks of disclosure implicit in the release of aggregate census data. The ideas of risk measurement are first developed for microdata where there is prior experience and then modified to measure risk in tables of counts. To make sure that the theoretical ideas are fully expounded, the authors develop small worked example. The risk measure purposed here is currently being tested out with synthetic and a real Census microdata. It is hoped that this approach will both refocus the census confidentiality debate and contribute to the safe use of user defined flexible census output geographies
Mice haploinsufficient for Map2k7, a gene involved in neurodevelopment and risk for schizophrenia, show impaired attention, a vigilance decrement deficit and unstable cognitive processing in an attentional task: impact of minocycline
Rationale:
Members of the c-Jun N-terminal kinase (JNK) family of mitogen-activated protein (MAP) kinases, and the upstream kinase MKK7, have all been strongly linked with synaptic plasticity and with the development of the neocortex. However, the impact of disruption of this pathway on cognitive function is unclear.
Objective:
In the current study, we test the hypothesis that reduced MKK7 expression is sufficient to cause cognitive impairment.
Methods:
Attentional function in mice haploinsufficient for Map2k7 (Map2k7+/− mice) was investigated using the five-choice serial reaction time task (5-CSRTT).
Results:
Once stable performance had been achieved, Map2k7+/− mice showed a distinctive attentional deficit, in the form of an increased number of missed responses, accompanied by a more pronounced decrement in performance over time and elevated intra-individual reaction time variability. When performance was reassessed after administration of minocycline—a tetracycline antibiotic currently showing promise for the improvement of attentional deficits in patients with schizophrenia—signs of improvement in attentional performance were detected.
Conclusions:
Overall, Map2k7 haploinsufficiency causes a distinctive pattern of cognitive impairment strongly suggestive of an inability to sustain attention, in accordance with those seen in psychiatric patients carrying out similar tasks. This may be important for understanding the mechanisms of cognitive dysfunction in clinical populations and highlights the possibility of treating some of these deficits with minocycline
Precision planar drift chambers and cradle for the TWIST muon decay spectrometer
To measure the muon decay parameters with high accuracy, we require an array
of precision drift detector layers whose relative position is known with very
high accuracy. This article describes the design, construction and performance
of these detectors in the TWIST (TRIUMF Weak Interaction Symmetry Test)
spectrometer.Comment: 44 pages, 16 Postscript figures, LaTeX2e, uses Elsevier class
elsart.cls, package graphicx, submitted to Nuclear Instruments & Methods in
Physics Researc
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