the effects of climate change, especially due to the increase of greenhouse gasses, have caused lots of problems that have affected different sections of society. one of the most important effects is the increase of natural disasters such as flood, drought, tropical cyclones, raising sea level, dust storm, etc. drought and flood are the most prevalent of these disasters in iran. because of the ...

In this paper, we use two-stage hybrid models consisting of unsupervised clustering techniques and decision trees with boosting on two different data sets and evaluate the models in terms of top decile lift. We examine two different approaches for hybridization of the models for utilizing the results of clustering based on various attributes related to service usage and revenue contribution of ...

BACKGROUND The patient-centered medical home (PCMH) is a team-based, comprehensive model of primary care. When effectively implemented, PCMH is associated with higher patient satisfaction, lower staff burnout, and lower hospitalization for ambulatory care-sensitive conditions. However, less is known about what factors contribute to (or hinder) PCMH implementation. We explored the associations o...

We extend theories and empirics in Chen, Hong,and Stein (2002) by allowing investors subject to market sentiment to hold a biased belief in aggregate. With a dynamic multiple-asset model, we show that the ownership breadth-return relationship can be either positive or negative depending on the relative strength of two offsetting forces: (1) variation in disagreement and (2) variation in sentime...

We examined the association between blood pressure (BP) reactivity to an anger provocation interview and 10-year incident CVD events in 1,470 adults from the population-based 1995 Nova Scotia Health Survey (NSHS95). In an unadjusted model, those in the highest decile of systolic BP reactivity were more than twice as likely to have an incident CVD event compared to those in the decile with no re...

We extend theories and empirics in Chen, Hong and Stein (2002) by allowing investors subject to market sentiment to hold a biased belief in aggregate. With a dynamic multiple-asset model, we show that the ownership breadth-return relationship can be either positive or negative depending on the relative strength of two offsetting forces: (1) variation in disagreement and (2) variation in sentime...

BACKGROUND Health selection has been proposed to explain the patterning of alcohol-related mortality by area deprivation. This study investigated whether persons who die from alcohol-related conditions are more likely to experience social drift than those who die from other causes. METHODS Deaths recorded in Scotland (2013, >21 years) were coded as 'alcohol-related' or 'other' and by deprivat...

BACKGROUND Unplanned postoperative reintubation increases the risk of mortality, but associated factors are unclear. OBJECTIVE To elucidate factors associated with increased mortality risk in patients with unplanned postoperative reintubation. DESIGN Retrospective study. Patients older than 40 years who underwent unplanned reintubation from 2005 to 2010 were identified using the American Co...

BACKGROUND Studies suggest that low levels of vitamin D may be associated with prostate cancer, and darker skin reduces the body's ability to generate vitamin D from sunshine. The impact of sunshine on racial disparities in prostate cancer incidence and mortality is unknown. METHODS Using the Surveillance, Epidemiology, and End Results program database, the authors calculated age-adjusted pro...