215 research outputs found
Initial Results of a Silicon Sensor Irradiation Study for ILC Extreme Forward Calorimetry
Detectors proposed for the International Linear Collider (ILC) incorporate a
tungsten sampling calorimeter (`BeamCal') intended to reconstruct showers of
electrons, positrons and photons that emerge from the interaction point of the
collider with angles between 5 and 50 milliradians. For the innermost radius of
this calorimeter, radiation doses at shower-max are expected to reach 100 MRad
per year, primarily due to minimum-ionizing electrons and positrons that arise
in the induced electromagnetic showers of e+e- `beamstrahlung' pairs produced
in the ILC beam-beam interaction. However, radiation damage to calorimeter
sensors may be dominated by hadrons induced by nuclear interactions of shower
photons, which are much more likely to contribute to the non-ionizing energy
loss that has been observed to damage sensors exposed to hadronic radiation. We
report here on the results of SLAC Experiment T-506, for which several
different types of silicon diode sensors were exposed to doses of radiation
induced by showering electrons of energy 3.5-10.6 GeV. By embedding the sensor
under irradiation within a tungsten radiator, the exposure incorporated
hadronic species that would potentially contribute to the degradation of a
sensor mounted in a precision sampling calorimeter. Depending on sensor
technology, efficient charge collection was observed for doses as large as 220
MRad.Comment: Talk presented at the International Workshop on Future Linear
Colliders (LCWS13), Tokyo, Japan, 11-15 November 201
Assessing the greenness of environmental advertising claims made by multinational industrial firms
Growing skepticism about green advertisements calls for a thorough investigation of the environmental claims made by firms. This is particularly important in the context of industrial and international markets, where research on the subject is virtually non-existent. By employing legitimacy theory, this article develops several research hypotheses linking various dimensions of environmental claims made in green advertisements (i.e., focal points, evaluation areas, leverage aspects, driving forces) with advertising greenness (i.e., shallow, moderate, deep). It then tests these hypotheses with data obtained from a content analysis of 383 green magazine advertisements by multinational firms producing industrial goods. In accord with legitimacy theory, the results indicate that, the stronger the greenness of an advertisement: (a) the greater the use of focal points relating to a product, processes, image, and facts; (b) the more specific, strong, substantive, and acceptable are the issues raised; (c) the higher the employment of rational, emotional, and moral points to leverage environmental matters; and (d) the sharper the driving forces relating to the planet and its flora, fauna, and human entities. Several important conclusions, managerial implications, and directions for future research are derived from these findings
Climate Risk Management in Smallholder Farming Systems in the Semiarid Tropics
Climate risk management in the semi-arid tropics (SAT) is one of the major
challenges to achieving food security and development in India and large parts of
sub-Saharan Africa and also in the case of Australia. Climate-induced production
risk associated with the current season-to-season variability of rainfall is a major
barrier in making rainfed agriculture sustainable and viable farm business. Since
season outcomes are uncertain, even with the best climate information, farmers
have limited flexibility in applying management with confidence. In fact in risky
environments, farmers most often respond by adapting a risk averse strategy and
are reluctant to invest in even risk reducing measures (Leathers and Quiggin
1991). In the SAT agro-ecologies, there are a limited range of enterprise or crop
options to consider which may be further restricted by cultural traditions, food
preferences or market opportunities.While there are fundamental differences
between large scale commercial farms in Australia compared to the predominantly
smallholder resource poor farms found in India, when it comes to climate risk
management in the SAT, there are many commonalities. The purpose of this
paper is therefore to (i) establish a framework for managing climate variability
and transforming farming systems to be more resilient and sustainable for future
climates; and (ii) provide some case study examples from climate risk management
in low rainfall cropping system in Australia and consider how they may be applied
in smallholder systems of the SAT..
Australasia
Observed changes and impacts
Ongoing climate trends have exacerbated many extreme events (very high confidence). The Australian trends include further warming and sea level rise sea level rise (SLR), with more hot days and heatwaves, less snow, more rainfall in the north, less April–October rainfall in the southwest and southeast and more extreme fire weather days in the south and east. The New Zealand trends include further warming and sea level rise (SLR), more hot days and heatwaves, less snow, more rainfall in the south, less rainfall in the north and more extreme fire weather in the east. There have been fewer tropical cyclones and cold days in the region. Extreme events include Australia’s hottest and driest year in 2019 with a record-breaking number of days over 39°C, New Zealand’s hottest year in 2016, three widespread marine heatwaves during 2016–2020, Category 4 Cyclone Debbie in 2017, seven major hailstorms over eastern Australia and two over New Zealand from 2014–2020, three major floods in eastern Australia and three over New Zealand during 2019–2021 and major fires in southern and eastern Australia during 2019–2020
Sustainability, epistemology, ecocentric business and marketing strategy:ideology, reality and vision
This conceptual article examines the relationship between marketing and sustainability through the dual lenses of anthropocentric and ecocentric epistemology. Using the current anthropocentric epistemology and its associated dominant social paradigm, corporate ecological sustainability in commercial practice and business school research and teaching is difficult to achieve. However, adopting an ecocentric epistemology enables the development of an alternative business and marketing approach that places equal importance on nature, the planet, and ecological sustainability as the source of human and other species' well-being, as well as the source of all products and services. This article examines ecocentric, transformational business, and marketing strategies epistemologically, conceptually and practically and thereby proposes six ecocentric, transformational, strategic marketing universal premises as part of a vision of and solution to current global un-sustainability. Finally, this article outlines several opportunities for management practice and further research
Steering for Sustainable Development Goals: A Typology of Sustainable Innovation
Process and product innovation are defined as an organizational ability to discover and translate creative approaches to solve multiple organizational problems. The process and product innovation contribute to the supply of economic, social, and environmental benefits, thus ensuring sustainable environmental growth. It helps companies to achieve greater profits, reduce environmental burden, and use a material that can be more resource-efficient. Process and product innovation have become ubiquitous and part of everyday life. Sustainable process and product innovation are contemplated as an essential means for addressing infrastructure resilience for sustainability challenges. Although the perspective is huge, the governance and capability structure eventually dictate what innovation is likely to be developed.Post-print / Final draf
Sustainable System Value Creation: Development of Preliminary Frameworks for a Business Model Change Within a Systemic Transition Process
Although corporate sustainability has gained more attention and companies have recently showed a growing interest in sustainable practices, the progress towards sustainable development has been slow leading to increasing environmental and social challenges. . Business model innovations are recognized as a key to the creation of sustainable business and as a bridge between company level and system level changes. Sustainable business model innovations create, deliver and capture economic, social, and ecological value for customers and other stakeholders in various societies.
The aim of this article is to deepen the understanding of the ways how companies create and capture sustainable value through business models in a larger operation system. From the theoretical perspective, the article adopts the transition theory and the concept of strong sustainability for understanding socio-technical transitions and business model changes towards sustainability. Here the focus is on companies’ dualistic role pursuing sustainable development targets – both contributing to sustainability within the business dimensions, and assisting the broader systemic change through the new sustainable business models. Furthermore, the article deals with the external factors that either enable or hinder companies to transform their existing business models towards sustainability.
By reviewing previous literature, this study develops preliminary frameworks combining the approaches of transition management, sustainable value creation and corporate sustainability levels. The work aims to decrease the existing gap between the literature of system transition and business models. The frameworks can be applied in the future in analyzing new sustainable business models, value processes, value creation and capture, and broader systemic changes towards sustainability.Post-print / Final draf
Surrogate Models and Mixtures of Experts in Aerodynamic Performance Prediction for Mission Analysis
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/140436/1/6.2014-2301.pd
Taxonomy of delays in the implementation of hospital computerized physician order entry and clinical decision support systems for prescribing:a longitudinal qualitative study
BACKGROUND: Implementation delays are common in health information technology (HIT) projects. In this paper, we sought to explore the reasons for delays in implementing major hospital-based HIT, through studying computerized physician order entry (CPOE) and clinical decision support (CDS) systems for prescribing and to develop a provisional taxonomy of causes of implementation delays. METHODS: We undertook a series of longitudinal, qualitative case studies to investigate the implementation and adoption of CPOE and CDS systems for prescribing in hospitals in the U.K. We used a combination of semi-structured interviews from six case study sites and two whole day expert roundtable discussions to collect data. Interviews were carried out with users, implementers and suppliers of CPOE/CDS systems. We used thematic analysis to examine the results, drawing on perspectives surrounding the biography of artefacts. RESULTS: We identified 15 major factors contributing to delays in implementation of CPOE and CDS systems. These were then categorized in a two-by-two delay classification matrix: one axis distinguishing tactical versus unintended causes of delay, and the second axis illustrating internal i.e., (the adopting hospital) versus external (i.e., suppliers, other hospitals, policymakers) related causes. CONCLUSIONS: Our taxonomy of delays in HIT implementation should enable system developers, implementers and policymakers to better plan and manage future implementations. More detailed planning at the outset, considering long-term strategies, sustained user engagement, and phased implementation approaches appeared to reduce the risks of delays. It should however be noted that whilst some delays are likely to be preventable, other delays cannot be easily avoided and taking steps to minimize these may negatively affect the longer-term use of the system
Frugal Innovation for Supply Chain Sustainability in SMEs: Multi-method Research Design
In this study we attempt to establish the missing links between supply chain sustainability and frugal innovation. Our study motivations stem from two facets of the emerging markets: firstly, the institutional barriers and secondly, the resource constraints. We argue that there is a synergy in the concepts of frugal innovation and sustainability in supply chains and there is a need to further explore this synergy. Furthermore, we claim that even in the wake of many success stories in the frugal innovative supply chain management practices from emerging markets such as India, there are very few, if any, attempts made to understand the implications of a sustainability oriented frugal innovations in the particular context. To address this gap we develop a model to establish the linkage between sustainable supply chains and frugal innovations. Our proposed conceptual framework depicts the hierarchy and interlinks of the identified enablers in developing sustainability oriented frugal innovative capabilities in supply chains. Furthermore, we have empirically validated our theoretical framework using survey data. We observed that most of the interpretive links are supported. These findings extend the understanding of frugal innovation for supply chain sustainability using multi-method research design, while also providing theoretically guidance to managers in the development of frugal innovation capability to achieve sustainability in supply chain in resource constrained environment
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