Principles and Guidelines for Improving Risk Communication

Covello, Vincent T.; McCallum, David; Pavlova, Maria T.

doi:10.1007/978-1-4613-1569-8_1

Cited by 53 publications

(40 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…All the levels observed up to spin 23/2 + are consistent with excitations of 5 valence neutrons into the d 5/2 , g 7/2 , s 1/2 and d 3/2 orbitals [8]. Positive parity states above the 23/2 + level require either the promotion of two neutrons into the h 11/2 orbit or particle-hole excitations across the Z=50 proton shell gap and are expected, in the absence of deformation, around 7 MeV of excitation energy [10]. Two states of spin 25/2 and 27/2 with positive parity are observed at lower excitation energy: 5532 keV and 6129 keV respectively.…”

mentioning

confidence: 59%

Shears band in the 105Sn nucleus

et al. 1997

View full text Add to dashboard Cite

The structure of 105 Sn has been investigated through the 50 Cr( 58 Ni,2pn) reaction at a beam energy of 210 MeV. In addition to an extension of the spherical level scheme, a regular sequence of dipole transitions has been found. The experimental results are in agreement with the prediction of Tilted Axis Cranking calculations, which satisfactorily explain the properties of the band.The recently discovered sequences of ∆I = 1 M1 transitions in the nuclei around 200 Pb [1] [2] show very unusual properties: a high regularity with no signature splitting, the missing or very small crossover E2 transitions indicating small deformation, B(M1) very large (several units of µ 2 N ) and a ratio of the moment of inertia to the B(E2) about an order of magnitude larger than for normal or superdeformed nuclei.The interpretation of this sequences has been given in terms of a novel type of excitation [3,4,5], called 'magnetic' rotation. Different from normal rotation, here it is the magnetic dipole that rotates about the angular momentum vector and not the deformed electrical charge distribution. In the Pb region, the angular momentum increase along the band is generated by the simultaneous reorientation of the spins of the protonparticles (h 9/2 or i 13/2 ) and of the neutron-holes (i 13/2 ). These angular momentum vectors are essentially perpendicular near the bandheads and align with the total angular momentum of the nucleus for increasing rotational frequency ("shears mechanism"). The Tilted Axis Cranking (TAC) model [3] provides the theoretical framework for a description of magnetic rotation and predicts the appearance of similar bands for the A=100 mass region [4] [5]. Here neutron-particles in the h 11/2 orbital and proton-holes in the g 9/2 orbital combine to the rotating dipole. Fellowship supported by CSIC, SpainIn this work we report on the discovery of a shears band in 105 Sn by using in-beam γ-ray spectroscopy.High-spin states of the 105 Sn nucleus were populated using the 58 Ni + 50 Cr reaction at a beam energy of 210 MeV. The target consisted of 2 self-supporting foils of isotopically enriched 50 Cr with a total thickness of 1 mg/cm 2 . The GASP array, with 40 Compton-suppressed Ge detectors and a multiplicity filter of 80 BGO scintillators, was used for a γ-coincidence measurement.In order to select the reaction channel we have used, in addition to the GASP array, the Si-ball ISIS [6] and the recoil mass spectrometer [7].Multipolarity information for the gamma transitions was extracted from directional correlation (DCO) intensity ratios. The proposed level scheme for 105 Sn is shown in Fig. 1.The spherical part of the 105 Sn level scheme is in agreement with the previous work [8]. The ground state assignment of I π =5/2 + is based on β + /EC decay [9]. All the levels observed up to spin 23/2 + are consistent with excitations of 5 valence neutrons into the d 5/2 , g 7/2 , s 1/2 and d 3/2 orbitals [8]. Positive parity states above the 23/2 + level require either the promotion of two neutrons into the h 11/2 orbit ...

show abstract

mentioning

confidence: 59%

Shears band in the 105Sn nucleus

et al. 1997

View full text Add to dashboard Cite

show abstract

“…If not, citizens will become frustrated and disappointed with the risk information provided by governments, which (to them) seem disinterested in the public's concerns. The audience will then feel that responsible agencies are reluctant or unwilling to allow them to participate in risk management (Covello, McCallum, and Pavlova 1989). However, recent perspectives on risk communication stress the importance of a more bottom-up approach of communicating risks to the public.…”

Section: The Interaction Between the Individual And Responsible Instimentioning

confidence: 97%

How to trust? The importance of self‐efficacy and social trust in public responses to industrial risks

Huurne

Gutteling

2009

Journal of Risk Research

View full text Add to dashboard Cite

Although a great deal of research has linked both self-efficacy and social trust to risk responses, one overlooked question concerns the association between selfefficacy and institutional trust. The purpose of this study was to investigate the main and combined effects of trust in the self and trust in responsible agencies to affective responses and information sufficiency. Survey respondents in this study were placed into one of four categories based on their levels of self-efficacy (high/ low) and social trust (high/low), including confidence, independence, dependence and insecure groups. Based on survey data (n5466), the accuracy of the fourgroup classification was tested. Indeed, we found that our classification system correlated with responses. Both self-efficacy and institutional trust were found to contribute to emotional risk responses, as well as risk information needs and preferences for risk information.

show abstract

“…A participatory approach to risk communication offers the most hope o f achieving a two-way process (Covello et al 1986(Covello et al , 1989. T w o overall strategies have been put forward to facilitate this process.…”

Section: Downloaded By [Mcgill University Library] At 06:23 21 Novembmentioning

confidence: 99%

Why aren't managers concerned about occupational stress?

Daniels

1996

Work & Stress

View full text Add to dashboard Cite

To explain the rarity of workplace stress management interventions, it is thought that managers are not concerned with the risks of occupational stress to health and job performance. Some writers consider either (1) deficiencies in theory, and/or (2) deficiencies in methodology to be the cause of this apparent lack of concern. The aim of this paper is to illustrate another perspective on this issue; that of risk perception. Two perspectives on risk perception are discussed; the psychometric view and the cultural view. The psychometric view suggests that senior managers may underestimate the risks associated with stress. The cultural view suggests that managers may consider stress management to be inappropriate, since individuals, not organizations, should be responsible for coping with stress. Both perspectives indicate that very few managers may consider stress to be a risk that should be actively managed by the organization. The associated disciplines of risk management and particularly risk communication are discussed to suggest ways to overcome lack of managerial interest in stress management

show abstract

Principles and Guidelines for Improving Risk Communication

Cited by 53 publications

References 2 publications

Shears band in the 105Sn nucleus

Shears band in the 105Sn nucleus

How to trust? The importance of self‐efficacy and social trust in public responses to industrial risks

Why aren't managers concerned about occupational stress?

Contact Info

Product

Resources

About