163 research outputs found
Testing for Budget Constraint Effects in a National Advisory Referendum Survey on the Kyoto Protocol
In contrast to providing standard reminders about remembering household budgets, does asking survey respondents about their discretionary income and its use affect their voting responses in a national advisory referendum survey? We explore this question using U.S. household data from a unique set of multi-mode random samples (telephone and Internet surveys), and an advisory referendum concerning the Kyoto Protocol. The contingent valuation method is applied to estimate household willingness to pay (WTP) for a split-sample treatment: respondents who only received a standard reminder of household budgets (control group) versus respondents who received two mental accounting-type questions on discretionary income and its uses (treatment group). Results indicate that the treatment significantly influences voting responses and lowers estimated household WTP.budget constraint, contingent valuation, Kyoto Protocol, mental accounts, referendum, Environmental Economics and Policy,
Techniques for Achieving Zero Stress in Thin Films of Iridium, Chromium, and Nickel
We examine techniques for achieving zero intrinsic stress in thin films of iridium, chromium, and nickel deposited by magnetron sputter deposition. The intrinsic stress is further correlated to the microstructural features and physical properties such as surface roughness and optical density at a scale appropriate to soft X-ray wavelengths. The examination of the stress in these materials is motivated by efforts to advance the optical performance of light-weight X-ray space telescopes into the regime of sub-arcsecond resolution through various deposition techniques that rely on control of the film stress to values within 10-100 MPa. A characteristic feature of the intrinsic stress behavior in chromium and nickel is their sensitivity to the magnitude and sign of the intrinsic stress with argon gas pressure and deposition rate, including the existence of a critical argon process pressure that results in zero film stress which scales linearly with the atomic mass of the sputtered species. While the effect of stress reversal with argon pressure has been previously reported by Hoffman and others for nickel and chromium, we report this effect for iridium. In addition to stress reversal, we identify zero stress in the optical functioning iridium layer shortly after island coalescence for low process pressures at a film thickness of approximately 35nm. The measurement of the low values of stress during deposition was achieved with the aid of a sensitive in-situ instrument capable of a minimum detectable level of stress, assuming a 35nm thick film, in the range of 0.40-6.0 MPa for oriented crystalline silicon substrate thicknesses of 70-280 microns, respectively
Equity in access to MRI equipment: the Portuguese case
Magnetic resonance imaging (MRI) is a method of image diagnose proven to be of undeniable importance when it comes to neuro and cardio related diseases. In fact, these diseases (such as: ischemic heart disease, stroke and acute myocardial infection) have high incidence in Portugal. For these reasons, the allocation of this medical technology should not be considered with light thoughts. In fact, making decision of resource allocation in health care can be a very complex and contested matter. The impacts of new technology allocation, such MRI, can be assessed in a variety of ways. However, a fundamental component should always be present: the use of evidence-based decision-making methods. One of these methods is Technology Assessment (TA). This paper aims to characterize the equity on access of the Portuguese population in general, to a specific medical device such as MRI, under the TA point of view. It is hoped to promote a bridge of scientific knowledge between the gap on research and policy-making through TA that can emerge as a tool to aid decision-makers in the organization of health systems. There are gaps in providing healthcare, due to geographical imbalances, with some areas unable to provide certain specialized services, as hospitals in the countryside do not provide all medical specialties. Portugal has also a large independent private sector that provides diagnostic and therapeutic services to NHS users under contracts called conventions. These medical contracts cover ambulatory health facilities for laboratory tests and examinations such as diagnostic tests and Radiology. However, there is no convention from the NHS when concerning the MRI exam. Therefore, this reality can be considered a limitation in the access of the general population to this kind of clinical exam. TA can play an useful and important role in helping the decision-makers to explore potential gains that might be achieved by introducing a more rational decision making into health care management, namely into the Radiology area, regarding the allocation of MRI equipment.Orientadores: AntĂłnio BrandĂŁo Moniz (FCT-UNL) e Michael Decker (ITAS-KIT
The technologies of isolation: apocalypse and self in Kurosawa Kiyoshi's Kairo
In this investigation of the Japanese film Kairo, I contemplate how the horrors present in the film relate to the issue of self, by examining a number of interlocking motifs. These include thematic foci on disease and technology which are more intimately and inwardly focused that the film's conclusion first appears to suggest. The true horror here, I argue, is ontological: centred on the self and its divorcing from the exterior world, especially founded in an increased use of and reliance on communicative technologies. I contend that these concerns are manifested in Kairo by presenting the spread of technology as disease-like, infecting the city and the individuals who are isolated and imprisoned by their urban environment. Finally, I investigate the meanings of the apocalypse, expounding how it may be read as hopeful for the future rather than indicative of failure or doom
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Internet Versus Telephone in Contingent Valuation: Application to the Kyoto Protocol
Abstract only with list of additional readings:.ABSTRACT: Estimating the values individuals place on passively consumed goods, such as the existence of unique natural resources, can only be done by posing hypothetical questions intended to elicit statements about their willingness to pay (or be paid) for changes in these goods. These questions are administered through contingent valuation (CV) surveys. Recent years have witnessed both an expansion of the use of CV surveys, and the development of ever more sophisticated methods for conducting them. Nevertheless, a number of fundamental methodological issues remain. One barrier to faster progress in resolving them is the high cost of administering CV surveys through person-to-person, mail, or telephone interviews, which hinders the use of alternative CV instruments within a single study to determine which instruments are more reliable. This study reports on an NSF-funded research project that takes advantage of the relatively low cost of administering CV surveys through the Internet to address several methodological issues. The specific context is an examination of household willingness to pay for ratification of the Kyoto Protocol on global climate change, using a national advisory referendum format. Additionally, this study investigates the extent to which the Internet can be a replacement technology for the telephone in survey research.
The experimental design includes a variety of split-sample informational treatments. Initial empricial results report on the extent to which the Internet sample (13,034 completed questionnaires) replicates a national random sample of American households conducted through random digit dialing (1,392 completed questionnaires). Comparisons are made both in terms of willingness-to-pay estimates, under different treatment conditions, and responses to a variety of background questions. For example, within the Internet sample, comparisons are made between respondents who received surveys identical to the telephone respondents, and those who were given access to a massively larger quantity of information on the science of global climate change and the Kyoto Protocol.
Although the research deals specifically with contingent valuation, and therefore is of most direct interest to environmental valuation researchers, it should be of general interest to policy analysts and researchers who gather information through surveys
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