منابع مشابه
Reprogramming Bacteria to Seek and Destroy a Herbicide
A major goal of synthetic biology is to reprogram cells to perform complex tasks. Here we show how a combination of in vitro and in vivo selection rapidly identifies a synthetic riboswitch that activates protein translation in response to the herbicide atrazine. We further demonstrate that this riboswitch can reprogram bacteria to migrate in the presence of atrazine. Finally, we show that incor...
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Denial of service attacks can be catastrophic in wireless sensor networks. Typical denial of service attacks consist of either communications jamming or resource depletion through forcing continuous stimuli and communication between motes on the network. Localization is another interesting challenge in the world of sensor networks. Many applications utilizing sensor networks require that the an...
متن کاملEvolution: To seek out new worlds
A recent study of stickleback 'ecomorphs' generated by independent speciation events in different freshwater lakes suggests that, despite historical contingency, natural selection can run in surprisingly similar ways on multiple occasions.
متن کاملHow Children Seek Out Information from Technological and Human Informants
Members of the current generation of young children have been exposed to technological informants, primarily consisting of devices that search the Internet for information, nearly since birth. However, little is known about how young children explore information using these digital sources. To address this issue, 30 preschool children generated questions about unfamiliar animals that were to be...
متن کاملDestroy and localize
itotic spindle positioning involves a con-formational switch in LGN, the mammalian version of the invertebrate Pins protein, duces a spindle rocking that represents the first genetically manipulable model for studying spindle positioning in vertebrates. The switch operates via the opening of LGN, which can normally fold back onto itself. The unfolding is triggered by binding to either membrane-...
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ژورنال
عنوان ژورنال: Materials Today
سال: 2004
ISSN: 1369-7021
DOI: 10.1016/s1369-7021(04)00384-0