the study of virtual water and water productivity in agricultural crops requires the establishment of relations where represent the actual amount of water in order to produce the respective crop. this feature presents a new approach in studies regarding agricultural ecology. this survey evaluates the virtual water, water productivity and ecological water footprint of wheat and corn fields in th...

BACKGROUND Atrial fibrillation is the commonest cardiac dysrhythmia. It is associated with significant morbidity and mortality. There are two approaches to the management of atrial fibrillation: controlling the ventricular rate or converting to sinus rhythm in the expectation that this would abolish its adverse effects. OBJECTIVES To assess the effects of pharmacological cardioversion of atri...

In situ conservation of crop genetic resources is an important complement to ex situ conservation, yet little is known about how small-scale farmers perceive diversity in their own fi elds. In this study, we investigated the role of farmers from a community in the Sierra Juárez, Oaxaca, Mexico, in managing Phaseolus bean diversity in their fi elds. We collected seeds from 287 plants in 10 fi el...

Acute pancreatitis is a disease with a wide spectrum of etiologies, including casuistic toxins and viruses, congenital malformations and different vascular pathologies. However, with the exception of areas with a high prevalence of alcohol abuse, “biliary” is the most common form of acute pancreatitis in the majority of countries [1, 2, 3]. It is traditionally thought that “biliary” acute pancr...

We present an improved version of the POTENT method for reconstructing the velocity and mass density fields from radial peculiar velocities, test it with mock catalogs, and apply it to the Mark III Catalog of Galaxy Peculiar Velocities. The method is improved in several ways: (a) the inhomogeneous Malmquist bias is reduced by grouping and corrected statistically in either forward or inverse ana...

For the most part, we find our way around the planet by tapping memory, perhaps by recalling past routes, or sometimes by accessing stored mental images that approximate maps. In other cases, however, we must rely on information collected and made available to us by others. People visiting strange cities need street maps to help them find their way around; planners need maps of wetlands and oth...

BACKGROUND Health outcomes of electromagnetic fields (EMF) from mobile phones and their base stations are of concern. Conducting multidisciplinary research, targeting children and exploring dose-response are recommended. Our objectives were to describe the mobile phone usage characteristics of high school students and to explore the association between mobile phone usage characteristics, high s...

BACKGROUND There are limited data on the potential short-term benefits associated with reductions in HbA1c levels, and understanding any immediate improvements in health related quality-of-life (HRQoL) through better glycaemic control may help inform diabetes management decisions. This time-trade-off (TTO) study investigated the short-term impact on HRQoL associated with three different aspects...