Findings Could Aid Treatment Planning and Prevention Strategies
Researchers at the Johns Hopkins Bloomberg School of Public Health studying dengue hemorrhagic fever epidemics in Thailand have determined that the disease radiates outward in a traveling wave from Bangkok, the nation’s largest city, to infect every province in the country. According to the researchers’ analysis, the spatial-temporal wave travels at a speed of 148 kilometers per month and takes about eight months to spread through the entire country. The analysis appears in the January 22, 2004, edition of the journal Nature.
“We used a new mathematical technique developed by NASA for analysis of waves in physical materials – like water waves and sound waves – to study “epidemic waves” of dengue cases. Our study is the first step to understanding the mechanism of how a disease like dengue spreads through the country,” said lead author Derek Cummings, a PhD candidate at the Johns Hopkins University’s Bloomberg School of Public of Health and Whiting School of Engineering. “Anticipating dengue epidemics and determining the causes of those epidemics could help us plan control strategies more effectively.”
Tim Parsons | JHU
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An international research team including astronomers from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has combined radio telescopes from five continents to prove the existence of a narrow stream of material, a so-called jet, emerging from the only gravitational wave event involving two neutron stars observed so far. With its high sensitivity and excellent performance, the 100-m radio telescope in Effelsberg played an important role in the observations.
In August 2017, two neutron stars were observed colliding, producing gravitational waves that were detected by the American LIGO and European Virgo detectors....
Up to now, OLEDs have been used exclusively as a novel lighting technology for use in luminaires and lamps. However, flexible organic technology can offer much more: as an active lighting surface, it can be combined with a wide variety of materials, not just to modify but to revolutionize the functionality and design of countless existing products. To exemplify this, the Fraunhofer FEP together with the company EMDE development of light GmbH will be presenting hybrid flexible OLEDs integrated into textile designs within the EU-funded project PI-SCALE for the first time at LOPEC (March 19-21, 2019 in Munich, Germany) as examples of some of the many possible applications.
The Fraunhofer FEP, a provider of research and development services in the field of organic electronics, has long been involved in the development of...
For the first time, an international team of scientists based in Regensburg, Germany, has recorded the orbitals of single molecules in different charge states in a novel type of microscopy. The research findings are published under the title “Mapping orbital changes upon electron transfer with tunneling microscopy on insulators” in the prestigious journal “Nature”.
The building blocks of matter surrounding us are atoms and molecules. The properties of that matter, however, are often not set by these building blocks...
Scientists at the University of Konstanz identify fierce competition between the human immune system and bacterial pathogens
Cell biologists from the University of Konstanz shed light on a recent evolutionary process in the human immune system and publish their findings in the...
Laser physicists have taken snapshots of carbon molecules C₆₀ showing how they transform in intense infrared light
When carbon molecules C₆₀ are exposed to an intense infrared light, they change their ball-like structure to a more elongated version. This has now been...
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