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for discussions, references, and comments. I am especially grateful to two referees who supplied detailed, intelligent, and constructive comments on an earlier version of the manuscript and to John McMillan for his advice and encouragement. I worked on this project while a Fellow at the Center for Advanced Study in the Behavioral Sciences. I thank my(More)
BACKGROUND Enterococci have emerged as the third most common cause of nosocomial infections, requiring bactericidal antimicrobial therapy. Although vancomycin resistance is a major problem in clinics and has emerged in an important extend in farm animals, few studies have examined it in wild animals. To determine the prevalence of vanA-containing(More)
Financial reform designed to improve creditor protection is often encouraged as a way to increase credit access for firms in developing countries. In this paper, I show that when court enforcement works poorly, financial reform is ineffective in fostering both credit access and the productivity of firms. In the empirical analysis, I exploit variation in the(More)
Falling, and the fear of falling, is a serious health problem among the elderly. It often results in physical and mental injuries that have the potential to severely reduce their mobility, independence and overall quality of life. Nevertheless, the consequences of a fall can be largely diminished by providing fast assistance. These facts have lead to the(More)
In this work we propose a novel method for identifying individuals based on retinal fundus image matching. The method is based on the image registration of retina blood vessels, since it is known that the retina vasculature of an individual is a signature, i.e., a distinctive pattern of the individual. The proposed image registration consists of a(More)
Wireless Capsule Endoscope (WCE) is an innovative imaging device that permits physicians to examine all the areas of the Gastrointestinal (GI) tract. It is especially important for the small intestine, where traditional invasive endoscopies cannot reach. Although WCE represents an extremely important advance in medical imaging, a major drawback that remains(More)
Salmonellosis is one of the most common and widely distributed foodborne diseases. The emergence of Salmonella strains that are resistant to a variety of antimicrobials is a serious global public health concern. Salmonella enterica serovar Typhimurium definitive phage type 104 (DT104) is one of these emerging epidemic multidrug resistant strains. Here we(More)