39 research outputs found
The gender specific frequency of risk factor and CHD diagnoses prior to incident MI: A community study
BACKGROUND: CHD is a chronic disease often present years prior to incident AMI. Earlier recognition of CHD may be associated with higher levels of recognition and treatment of CHD risk factors that may delay incident AMI. To assess timing of CHD and CHD risk factor diagnoses prior to incident AMI. METHODS: This is a 10-year population based medical record review study that included all medical care providers in Olmsted County, Minnesota for all women and a sample of men residing in Olmsted County, MN with confirmed incident AMI between 1995 and 2000. RESULTS: All medical care for the 10 years prior to incident AMI was reviewed for 150 women and 148 men (38% sample) in Olmsted County, MN. On average, women were older than men at the time of incident AMI (74.7 versus 65.9 years, p < 0.0001). 30.4% of the men and 52.0% of the women received diagnoses of CHD prior to incident AMI (p = 0.0002). Unrecognized and untreated CHD risk factors were present in both men (45% of men 5 years prior to AMI) and women (22% of women 5 years prior to first AMI), more common in men and those without a diagnosis of CHD prior to incident AMI (p < 0.0001). CONCLUSION: A CHD diagnosis prior to incident AMI is associated with higher rates of recognition and treatment of CHD risk factors suggesting that diagnosing CHD prior to AMI enhances opportunities to lower the risk of future CHD events
Notes on the Indian Sand Skink Ophiomorus tridactylus
Volume: 67Start Page: 334End Page: 33
Stability analysis of convection in the intracluster medium
We use the machinery usually employed for studying the onset of
Rayleigh--B\'enard convection in hydro- and magnetohydro-dynamic settings to
address the onset of convection induced by the magnetothermal instability and
the heat-flux-buoyancy-driven-instability in the weakly-collisional magnetized
plasma permeating the intracluster medium. Since most of the related numerical
simulations consider the plasma being bounded between two `plates' on which
boundary conditions are specified, our strategy provides a framework that could
enable a more direct connection between analytical and numerical studies. We
derive the conditions for the onset of these instabilities considering the
effects of induced magnetic tension resulting from a finite plasma beta. We
provide expressions for the Rayleigh number in terms of the wave vector
associated with a given mode, which allow us to characterize the modes that are
first to become unstable. For both the heat-flux-buoyancy-driven-instability
and the magnetothermal instability, oscillatory marginal stable states are
possible.Comment: 10 pages, 1 figur
Evaluation of the Surajdewal sand for the glass industry
The raw sand available at Surajdewal was examined chemically and petrographically and some beneficiation work was carried out to investigate the suitability of the sand for the glass industry. The sand, as such, corresponds to Grade 3 of IS: 488-1963. During beneficiation it was observed that washing with water lowered the iron content, bringing the sand almost equivalent to Grade 2, and on leaching with 1 H2S04 the sand was found to be in conformity with Grade 1. The coarseness of the sand was reduced through grinding and this led to significant improvement in particle size distribution, ali preferred by the glass industry. Trial melting wa11 carried out with untreated and different grades of treated sands. The results were found to be encouraging for utilization in the glass industry. © 1982 Taylor & Francis Group, LLC