This study presents a statistical analysis of the vertical structure of precipitationmeasured by NASA–Japan Aerospace ExplorationAgency’s (JAXA) Tropical RainfallMeasuringMission (TRMM) precipitation radar (PR) in the region of southern California, Arizona, and western NewMexico, where the ground-based NextGeneration Radar (NEXRAD) network finds difficulties in accurately measuring surface prec...

MEDICINE plays an increasingly important role in international relations, and particularly in our interdependence with Latin America. For the countries south of the Rio Grande, the practice of tropical medicine is of major significance. Tropical medicine is not only curative medicine, diagnosis and treatment of diseases that tend to occur more frequently in the tropics, but also preventive medi...

We use a simulation model to examine four of the most common hypotheses for the latitudinal richness gradient and identify patterns that might be diagnostic of those four hypotheses. The hypotheses examined include (1) tropical niche conservatism, or the idea that the tropics are more diverse because a tropical clade origin has allowed more time for diversification in the tropics and has result...

An unusual form of hereditary spastic paraplegia is described. Affected females have a late-onset slowly progressive spastic paraparesis. Affected males show oligophrenia with a rapidly progressive spastic quadriplegia. The mode of inheritance is consistent with sex-linkage, with partial manifestation in female carriers.

Simpson's long working life covered a wide field. The pioneering nature of his work in public health and tropical hygiene involved a number of appointments at home and abroad. He worked in Aberdeen as Medical Officer of Health, in India as Health Officer for Calcutta, and in London he taught as Professor of Hygiene at King's College, becoming one of the founders of the London School of Hygiene ...

a larger number of reprintings of this world-famous book. Throughout its thirty years of life it has been the standard handbook on tropical diseases for the Englishspeaking races. Larger books?running into a number of volumes?have been published in English and other languages, but in none of them have their producers contrived to be so comprehensive in so small a space. The earliest editions of...

Global models suggest tropical forests could face significant and unprecedented warming within the next two decades (Diffenbaugh & Scherer, 2011). These findings, combined with evidence that tropical forests may be near a high temperature threshold, suggest that these systems may be more vulnerable to climate change than previously believed (Clark et al., 2003; Doughty & Goulden, 2008). Current...

tropical countries in the last two centuries. Characterised by profuse diarrhoea, steatorrhoea, abdominal distension, mouth ulcers and weight loss, it is a malabsorption syndrome the aetiology of which has never been conclusively identified. The phrase “A riddle wrapped in a mystery inside an enigma (Winston Churchill)” applies very aptly to tropical sprue. During the period of European colonia...

No other feed ingredient provides the combination of effective fiber, energy, and protein like whole cottonseed (WCS). These characteristics make WCS an attractive ingredient for including in rations fed to lactating dairy cows that require high concentrations of energy and adequate effective fiber. But like most ingredients, the composition of WCS has changed. The 2002 cotton crop was negative...

Results from a three-layer asymmetric hurricane model previously described by the authors are compared with results from an axially symmetric analog to investigate the effect of the symmetry assumption on the internal dynarnics of model cyclones. The symmetric model storm initially develops more rapidly then the asymmetric storm. The differences in intensity during the first 100 hr are related ...