2,587 research outputs found

    Combining Agri-Environment Schemes For Environmental And Financial Benefit - Tir Gofal And Organic Farming

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    Peter Davies farms 750 acres in the Vale of Glamorgan. He has a suckler herd and sheep, with arable crops for sale off the farm and for livestock feed. The farm began conversion in 1999 and most of it will finish in 2001. It was accepted into the Tir Gofal whole farm agri-environment scheme in 2000. In this interview with Will John he explains how the two schemes work together. He has researched and planned the changes carefully and expects his farm enterprise to benefit in the long term

    Agriculture's decline in Indonesia : supply or demand determined

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    Agriculture's share in an economy invariably declines as per capita income rises and as the economy develops. The literature on its causes has focused on the relative price effects arising from demand factors--especially Engel's Law (that the proportion of income spent on food declines as incomes rise)--rather than on such supply-side influences as changes in relative factor endowments and different rates of technical change. Engel's Law is convincing at the global level but it does not explain why agriculture's share should decline sharply in small open economies that experience rapid economic growth. A simple structural model of the transformation of the Indonesian economy, applying the Error Correction Mechanism to capture the dynamics resulting from disequilibria and costs of adjustment is developed. The authors develop an econometric model of the economy's supply side so they can explain agriculture's decline by the three theoretical factors: relative price changes, technical change, and factor accumulation. Based on the model's results, the authors conclude that the decline in the relative price of agricultural output contributed relatively little to the decline in agriculture's share. Technical change actually had a positive effect on agriculture's share, retarding the pressures for a decline in its share over time. By far the most important influence appears to have been the rapid accumulation of capital relative to labor over the period studied (1960-87).Economic Theory&Research,Environmental Economics&Policies,Agricultural Knowledge&Information Systems,Economic Growth,Inequality

    Long-term U.S transportation electricity use considering the effect of autonomous-vehicles: Estimates & policy observations

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    In this paper, we model three layers of transportation disruption – first electrification, then autonomy, and finally sharing and pooling – in order to project transportation electricity demand and greenhouse gas emissions in the United States to 2050. Using an expanded kaya identity framework, we model vehicle stock, energy intensity, and vehicle miles traveled, progressively considering the effects of each of these three disruptions. We find that electricity use from light duty vehicle transport will likely be in the 570–1140 TWh range, 13–26%, respectively, of total electricity demand in 2050. Depending on the pace at which the electric sector decarbonizes, this increase in electric demand could correspond to a decrease in LDV greenhouse gas emissions of up to 80%. In the near term, rapid and complete transport electrification with a carbon-free grid should remain the cornerstones of transport decarbonization policy. However, long-term policy should also aim to mitigate autonomous vehicles’ potential to increase driving mileage, urban and suburban sprawl, and traffic congestion while incentivizing potential energy efficiency improvements through both better system management and the lightweighting of an accident-free vehicle fleet

    Campus Art Museums in the 21st Century: A Conversation

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    In the summer of 2012, the authors of this study brought together a group of campus art museum directors and outside experts to 'think out loud' about the changes already occurring at campus museums and where new opportunities and roles may be emerging. We hope the resulting paper will further the field's larger, continuing exploration of its roles and potentials through dialogue, research, and experimentation -- an exploration that contributes to the continued healthy evolution of campus art museum practice

    First results from the LUCID-Timepix spacecraft payload onboard the TechDemoSat-1 satellite in Low Earth Orbit

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    The Langton Ultimate Cosmic ray Intensity Detector (LUCID) is a payload onboard the satellite TechDemoSat-1, used to study the radiation environment in Low Earth Orbit (∼\sim635km). LUCID operated from 2014 to 2017, collecting over 2.1 million frames of radiation data from its five Timepix detectors on board. LUCID is one of the first uses of the Timepix detector technology in open space, with the data providing useful insight into the performance of this technology in new environments. It provides high-sensitivity imaging measurements of the mixed radiation field, with a wide dynamic range in terms of spectral response, particle type and direction. The data has been analysed using computing resources provided by GridPP, with a new machine learning algorithm that uses the Tensorflow framework. This algorithm provides a new approach to processing Medipix data, using a training set of human labelled tracks, providing greater particle classification accuracy than other algorithms. For managing the LUCID data, we have developed an online platform called Timepix Analysis Platform at School (TAPAS). This provides a swift and simple way for users to analyse data that they collect using Timepix detectors from both LUCID and other experiments. We also present some possible future uses of the LUCID data and Medipix detectors in space.Comment: Accepted for publication in Advances in Space Researc

    Assessing the impact of the New Student Support Arrangements (NSSA) on higher education institutions (BIS research paper no.12)

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    "The research explores the impact on the policies, planning and behaviours of universities nearly four years after the introduction of new arrangements for student support in higher education (known as NSSA). It is set within the context of continued policy focus on increasing and widening participation, rising importance of university performance indicators in student choices, and a challenging economic climate. The research uses qualitative evidence collected from over 120 staff in 15 case studies across England..." - exec. summary
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