Alicia Fernández

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OBJECTIVE To determine whether food insecurity--the inability to reliably afford safe and nutritious food--is associated with poor glycemic control and whether this association is mediated by difficulty following a healthy diet, diabetes self-efficacy, or emotional distress related to diabetes. RESEARCH DESIGN AND METHODS We used multivariable regression(More)
Improving nontechnical loss detection is a huge challenge for electric companies. The great number of clients and the diversity of the different types of fraud makes this a very complex task. In this paper we present a fraud detection strategy based on class imbalance research. An automatic detection tool combining classification strategies is proposed.(More)
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BACKGROUND A significant proportion of US Latinos with diabetes have limited English proficiency (LEP). Whether language barriers in health care contribute to poor glycemic control is unknown. OBJECTIVE To assess the association between limited English proficiency (LEP) and glycemic control and whether this association is modified by having a(More)
BACKGROUND Coronary heart disease (CHD) is the leading cause of death in the United States. Previous research examining physicians ability to estimate cardiovascular risk has shown that physicians' generally overestimate the absolute risk of CHD events. This question has, however, only studied risk prediction for a limited number of patient care scenarios.(More)
This study examined the relations among family conflict, community violence, and young children's socioemotional functioning and explored how children's social cognition and mothers' psychological functioning may mediate the outcomes associated with this exposure. Mothers of 431 Head Start preschoolers completed questionnaires about their family demography,(More)
BACKGROUND Informed consent is legally and ethically required before invasive non-emergent procedures. Language barriers make obtaining informed consent more complex. OBJECTIVE Determine the impact of language barriers on documentation of informed consent among patients in a teaching hospital with on-site interpreter services. DESIGN Matched(More)
A method is presented for segmentation of anatomical structures that incorporates prior information about shape. The method iteratively applies steps which find object's border considering its properties independently from shape. The boundary is regularized taking in account the shape being extracted. Detection is not directly performed in the image but in(More)