5,019 research outputs found
The Inherent Disadvantage of the Presidential Party in Midterm Congressional Elections
The almost inevitable midterm election loss suffered by the president's congressional party still lacks a complete explanation. It is argued here that the policy positions of the president help shape voters' perceptions of the positions of congressional candidates. Because the president implements policies before the midterm campaign begins, and because he has goals apart from winning seats in Congress, his party's candidates are at a disadvantage, relative to their opponents, in communicating the most favorable positions possible to their voters. This model of the midterm campaign not only explains midterm losses, but also accounts for rare failures of this phenomenon, as occurred in 1934
The prevalence of medical reasons for non-participation in the Scottish breast and bowel cancer screening programmes
Objective: Increasing uptake of cancer screening is a priority for health systems internationally, however, some patients may not attend because they are undergoing active treatment for the cancer of interest or have other medical reasons that mean participation would be inappropriate. This study aims to quantify the proportion of non-participants who have a medical reason for not attending cancer screening.<p></p>
Methods: Medical reasons for not participating in breast and bowel screening were defined a priori on the basis of a literature review and expert opinion. The notes of 700 patients at two GP practices in Scotland were reviewed, to ascertain the prevalence of medical reasons amongst non-participants. Simple proportions and confidence intervals were calculated.<p></p>
Results: 17.4% of breast and 2.3% of bowel screening non-participants had a medical reason to not participate. The two most common reasons were previous breast cancer follow up (8.86%) and recent mammogram (6.57%).<p></p>
Conclusion: These patients may not benefit from screening while also being distressed by receiving an invitation. This issue also makes accurate monitoring and target-setting for improving uptake difficult. Further work is needed to estimate robustly the extent to which medical reasons account for screening non-participation in a larger population.<p></p>
‘Our voice started off as a whisper and now it is a great big roar’ : The Salford Dementia Associate Panel as a model of involvement in research activities
This paper presents the work of the ‘Salford Dementia Associate Panel’, based at the Salford Institute for Dementia, Salford University (UK). We discuss the roles of the Dementia Associates, in particular around the areas of engagement and research. The panel is made up of people living with dementia, and current and former care partners. It highlights the development of this group over a four-year period and demonstrates over time how the role of a Dementia Associate member has evolved. The panel is involved in research, education and public engagement activities conducted by staff and students within the Institute. The motivations for becoming involved are clearly articulated and demonstrate how the personal backgrounds of individuals have driven the collective involvement and desire to bring about change. The benefits and challenges associated with working as part of a panel are discussed. We conclude by bringing together our experiences as a set of suggestions for others who may wish to create a similar forum to promote the involvement of people living with dementia and former and current care partners
Cluster Multi-spacecraft Determination of AKR Angular Beaming
Simultaneous observations of AKR emission using the four-spacecraft Cluster
array were used to make the first direct measurements of the angular beaming
patterns of individual bursts. By comparing the spacecraft locations and AKR
burst locations, the angular beaming pattern was found to be narrowly confined
to a plane containing the magnetic field vector at the source and tangent to a
circle of constant latitude. Most rays paths are confined within 15 deg of this
tangent plane, consistent with numerical simulations of AKR k-vector
orientation at maximum growth rate. The emission is also strongly directed
upward in the tangent plane, which we interpret as refraction of the rays as
they leave the auroral cavity. The narrow beaming pattern implies that an
observer located above the polar cap can detect AKR emission only from a small
fraction of the auroral oval at a given location. This has important
consequences for interpreting AKR visibility at a given location. It also helps
re-interpret previously published Cluster VLBI studies of AKR source locations,
which are now seen to be only a subset of all possible source locations. These
observations are inconsistent with either filled or hollow cone beaming models.Comment: 5 pages, 4 figures. Geophys. Res. Letters (accepted
Mapping the Evolution of Optically-Generated Rotational Wavepackets in a Room Temperature Ensemble of D
A coherent superposition of rotational states in D has been excited by
nonresonant ultrafast (12 femtosecond) intense (2 10
Wcm) 800 nm laser pulses leading to impulsive dynamic alignment.
Field-free evolution of this rotational wavepacket has been mapped to high
temporal resolution by a time-delayed pulse, initiating rapid double
ionization, which is highly sensitive to the angle of orientation of the
molecular axis with respect to the polarization direction, . The
detailed fractional revivals of the neutral D wavepacket as a function of
and evolution time have been observed and modelled theoretically.Comment: 4 pages, 3 figures. Accepted for publication in Phys. Rev. A. Full
reference to follow.
SOME PROPOSED RESEARCH ACTIVITIES PERTAINING TO RELIABILITY. SOME NOTES ON THE ESTIMATION OF RELIABILITY
An outline of the major problems which have appeared in reliability research at Sandia Corporation is presented and generalizations based on this experience are discussed. (J.R.D.
Sinking particle fluxes from the euphotic zone over the continental slope of an eastern boundary current region
We analyze data from sediment traps and current meters moored at two locations 100 km apart over the Vancouver Island continental slope during the spring and summer of 1990. Time-series of sinking particle fluxes, major biogenic components (biogenic silica, calcium carbonate, and particulate organic carbon and nitrogen), and stable isotopic composition (δ13Corganic and δ15Ntotal) were determined on samples obtained with sequential sediment traps moored at 200–250 m depth. Associated water property data were obtained from CTD/Rosette profiles taken during trap service periods and from current meters positioned in the surface layer and near the sediment trap. These data indicate that the two locations (a southern site J and a northern site NJ) were hydrographically distinct during the investigation. At site J, we found evidence for frequent upwelling events and more variability in the upper layer water properties. The main difference in the sinking fluxes of particles between the two sites was the occurrence of a one-week event at the end of May at J that contributed about one third of the total particle flux during the sampling period. Otherwise, the total flux collected during the study and the flux of major biogenic particles were similar at both sites. Silica shells dominated the flux of particles, particularly during the spring and early summer period. At both sites, particulate organic carbon rather than calcium carbonate was the main contributor to particulate carbon fluxes. The δ13Corganic showed marked variations during the sampling period at both sites likely due to variations in the growth rate of phytoplankton and in species composition. In comparison, variations in nitrate availability appear to dominate the changes in δ15Ntotal
The Inherent Disadvantage of the Presidential Party in Midterm Congressional Elections
The almost inevitable midterm election loss suffered by the president's congressional party still lacks a complete explanation. It is argued here that the policy positions of the president help shape voters' perceptions of the positions of congressional candidates. Because the president implements policies before the midterm campaign begins, and because he has goals apart from winning seats in Congress, his party's candidates are at a disadvantage, relative to their opponents, in communicating the most favorable positions possible to their voters. This model of the midterm campaign not only explains midterm losses, but also accounts for rare failures of this phenomenon, as occurred in 1934
The multiple ionospheric probe Auroral ionospheric report
Multiple impedance and resonance probe payload for ionospheric property observation in Nike- Apache rocke
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