2,198 research outputs found

    Rules of Engagement: Journalists’ attitudes to industry influence in health news reporting.

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    Health-related industries use a variety of methods to influence health news, including the formation and maintenance of direct relationships with journalists. These interactions have the potential to subvert news reporting such that it comes to serve the interests of industry in promoting their products, rather than the public interest in critical and accurate news and information. Here we report the findings of qualitative interviews conducted in Sydney, Australia, in which we examined journalists’ experiences of, and attitudes towards, their relationships with health-related industries. Participants’ belief in their ability to manage industry influence and their perceptions of what it means to be unduly influenced by industry raise important concerns relating to the psychology of influence and the realities of power relationships between industry and journalists. The analysis also indicates ways in which concerned academics and working journalists might establish more fruitful dialogue regarding the role of industry in health-related news and the extent to which increased regulation of journalist-industry relationships might be needed.NHMR

    Power and control in interactions between journalists and health-related industries – the view from industry.

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    The mass media is a major source of health information for the public, and as such the quality and independence of health news reporting is an important concern. Concerns have been expressed that journalists reporting on health are increasingly dependent on their sources – including representatives of industries responsible for manufacturing health-related products – for story ideas and content. Many critics perceive an imbalance of power between journalists and industry sources, with industry being in a position of relative power, however the empirical evidence to support this view is limited. The analysis presented here – which is part of a larger study of industry-journalist relationships – draws on in-depth, semi-structured interviews with representatives of health-related industries in Australia to inductively examine their perceptions of power relations between industry and journalists. Participants painted a picture in which journalists, rather than themselves, were in a position to control the nature, extent, and outcome of their interactions with industry sources. Our results resonate with the concept of “mediatisation” as it has been applied in the domain of political reporting. It appears that, from the perspective of industry representatives, the imposition of media logic on health-related industries may inappropriately influence the information that the public receives about health-related products. KEYWORDS: journalism, ethics, power, public health, qualitative researchNHMR

    Views of health journalists, industry employees and news consumers about disclosure and regulation of industry-journalist relationships: An empirical ethical study

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    Bioethicists and policymakers are increasingly concerned about the effects on health journalism of relationships between journalists and private corporations. The concern is that relationships between journalists and manufacturers of medicines, medical devices, complementary medicines, and food can and do distort health reporting. This is a problem because health news is known to have a major impact on the public’s health-related expectations and behaviour. Commentators have proposed two related approaches to protecting the public from potential harms arising from industry-journalist interactions: greater transparency and external regulation. To date, few empirical studies have examined stakeholders’ views of industry-journalist relationships and how these should be managed. We conducted interviews with 13 journalists and 12 industry employees, and two focus groups with consumers. Our findings, which are synthesised here, provide empirical support for the need for greater transparency and regulation of industry-journalist relationships. Our findings also highlight several likely barriers to instituting such measures, which will need to be overcome if transparency and regulation are to be accepted by stakeholder and have their intended effect on both the quality of journalism and the actions of news consumers.NHMR

    Health journalists’ perceptions of their professional roles and responsibilities for ensuring the veracity of reports of health research

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    Health industries attempt to influence the public through the news media and through their relationships with expert academics and opinion leaders. This paper reports the results of a study of journalists’ perceptions of their professional roles and responsibilities with regard to relationships between industry and academia. Journalists believed that responsibility for the validity of their reports rested with academics and systems of peer review. However this fails to account for the extent these interactions and the failures of peer review. Health journalists’ retention of a critical stance regarding industry-academia relationships will include advocacy for and adoption of mandatory reporting of these relationships

    The complex multiferroic phase diagram of Mn1x_{1-x}Cox_xWO4_4

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    The complete magnetic and multiferroic phase diagram of Mn1x_{1-x}Cox_{x}WO4_4 single crystals is investigated by means of magnetic, heat capacity, and polarization experiments. We show that the ferroelectric polarization P\overrightarrow{P} in the multiferroic state abruptly changes its direction twice upon increasing Co content, x. At xc1_{c1}=0.075, P\overrightarrow{P} rotates from the bb-axis into the aca-c plane and at xc2_{c2}=0.15 it flips back to the bb-axis. The origin of the multiple polarization flops is identified as an effect of the Co anisotropy on the orientation and shape of the spin helix leading to thermodynamic instabilities caused by the decrease of the magnitude of the polarization in the corresponding phases. A qualitative description of the ferroelectric polarization is derived by taking into account the intrachain (cc-axis) as well as the interchain (aa-axis) exchange pathways connecting the magnetic ions. In a narrow Co concentration range (0.1\leqx\leq0.15), an intermediate phase, sandwiched between the collinear high-temperature and the helical low-temperature phases, is discovered. The new phase exhibits a collinear and commensurate spin modulation similar to the low-temperature magnetic structure of MnWO4_4.Comment: 18 pages, 6 figure

    Black Hole Thermodynamics from Near-Horizon Conformal Quantum Mechanics

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    The thermodynamics of black holes is shown to be directly induced by their near-horizon conformal invariance. This behavior is exhibited using a scalar field as a probe of the black hole gravitational background, for a general class of metrics in D spacetime dimensions (with D4D \geq 4). The ensuing analysis is based on conformal quantum mechanics, within a hierarchical near-horizon expansion. In particular, the leading conformal behavior provides the correct quantum statistical properties for the Bekenstein-Hawking entropy, with the near-horizon physics governing the thermodynamic properties from the outset. Most importantly: (i) this treatment reveals the emergence of holographic properties; (ii) the conformal coupling parameter is shown to be related to the Hawking temperature; and (iii) Schwarzschild-like coordinates, despite their ``coordinate singularity,''can be used self-consistently to describe the thermodynamics of black holes.Comment: 16 pages. Sections 2 and 3 and sections 4 and 5 of version 1 were merged and reduced; a few typos were corrected. The original central results and equations remain unchange

    The Kundu--Eckhaus equation and its discretizations

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    In this article we show that the complex Burgers and the Kundu--Eckhaus equations are related by a Miura transformation. We use this relation to discretize the Kundu--Eckhaus equation.Comment: 10 page

    The falling chain of Hopkins, Tait, Steele and Cayley

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    A uniform, flexible and frictionless chain falling link by link from a heap by the edge of a table falls with an acceleration g/3g/3 if the motion is nonconservative, but g/2g/2 if the motion is conservative, gg being the acceleration due to gravity. Unable to construct such a falling chain, we use instead higher-dimensional versions of it. A home camcorder is used to measure the fall of a three-dimensional version called an xyzxyz-slider. After frictional effects are corrected for, its vertical falling acceleration is found to be ax/g=0.328±0.004a_x/g = 0.328 \pm 0.004. This result agrees with the theoretical value of ax/g=1/3a_x/g = 1/3 for an ideal energy-conserving xyzxyz-slider.Comment: 17 pages, 5 figure

    Acceleration of Solar Wind Ions by Nearby Interplanetary Shocks: Comparison of Monte Carlo Simulations with Ulysses Observations

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    The most stringent test of theoretical models of the first-order Fermi mechanism at collisionless astrophysical shocks is a comparison of the theoretical predictions with observational data on particle populations. Such comparisons have yielded good agreement between observations at the quasi-parallel portion of the Earth's bow shock and three theoretical approaches, including Monte Carlo kinetic simulations. This paper extends such model testing to the realm of oblique interplanetary shocks: here observations of proton and alpha particle distributions made by the SWICS ion mass spectrometer on Ulysses at nearby interplanetary shocks are compared with test particle Monte Carlo simulation predictions of accelerated populations. The plasma parameters used in the simulation are obtained from measurements of solar wind particles and the magnetic field upstream of individual shocks. Good agreement between downstream spectral measurements and the simulation predictions are obtained for two shocks by allowing the the ratio of the mean-free scattering length to the ionic gyroradius, to vary in an optimization of the fit to the data. Generally small values of this ratio are obtained, corresponding to the case of strong scattering. The acceleration process appears to be roughly independent of the mass or charge of the species.Comment: 26 pages, 6 figures, AASTeX format, to appear in the Astrophysical Journal, February 20, 199
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