Over 380,000 people have been protected from dengue fever in Vietnam thanks to the implementation of a novel strategy to control mosquitoes in the country, concludes a report in this week’s issue of THE LANCET.
Dengue fever is the most common insect-borne virus infection, causing more than 50 million infections, 500 000 cases of dengue haemorrhagic fever and at least 12 000 deaths per year. The mosquito, Aedes aegypti, is the major global vector of dengue viruses. It needs stagnant water to breed and is commonly found in water storage containers.
Brian Kay (Royal Brisbane Hospital, Queensland, Australia) and Vu Sinh Nam (Ministry of Health, Vietnam) developed a mosquito control strategy and evaluated it in12 provinces in Vietnam from 1998 to 2003. Their strategy involves inoculating large water storages with crustaceans called Mesocyclops, which feed on mosquito larvae and targeting containers that produce the most mosquito larvae. Community education and activities, such as the collection of discarded containers, also form an important part of the strategy.
Udani Samarasekera | alfa
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MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
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Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
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