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The odour of acids has a distinct quality that is perceived as sharp, pungent and often irritating. How acidity is sensed and translated into an appropriate behavioural response is poorly understood. Here we describe a functionally segregated population of olfactory sensory neurons in the fruitfly, Drosophila melanogaster, that are highly selective for(More)
Animals across various phyla exhibit odor-evoked innate attraction behavior that is developmentally programmed. The mechanism underlying such behavior remains unclear because the odorants that elicit robust attraction responses and the neuronal circuits that mediate this behavior have not been identified. Here, we describe a functionally segregated(More)
Feeding behavior is influenced primarily by two factors: nutritional needs and food palatability. However, the role of food deprivation and metabolic needs in the selection of appropriate food is poorly understood. Here, we show that the fruit fly, Drosophila melanogaster, selects calorie-rich foods following prolonged food deprivation in the absence of(More)
Animals can detect and consume nutritive sugars without the influence of taste. However, the identity of the taste-independent nutrient sensor and the mechanism by which animals respond to the nutritional value of sugar are unclear. Here, we report that six neurosecretory cells in the Drosophila brain that produce Diuretic hormone 44 (Dh44), a homolog of(More)
Drosophila olfactory sensory neurons express either odorant receptors or ionotropic glutamate receptors (IRs). The sensory neurons that express IR64a, a member of the IR family, send axonal projections to either the DC4 or DP1m glomeruli in the antennal lobe. DC4 neurons respond specifically to acids/protons, whereas DP1m neurons respond to a broad spectrum(More)
Analyzing the performance and power of Mobile Internet Devices (MID) is important for academia and industry as well as for consumers. It is important to assess the performance associated with a typical workload on MIDs so that applications and hardware can be optimized to reduce performance bottlenecks. In this paper, we present TMAPP, a benchmark developed(More)
For the last few years, there has been a large volume of research on Peer-to-Peer (P2P) systems, resulting in many hybrid P2P models. In the hybrid model, all P2P overlay traffic will be routed via the SP. In this model, the SP selection and replacement are important to accomplishing high scalability and reliable service in P2P network. Main purpose of this(More)
For the last few years, there has been a large volume of research on Peer-to-Peer (P2P) system, resulting in many hybrid P2P models. This model is important to keep a high available SP because all P2P overlay traffic will be routed via the SP. Main purpose of this paper is to improve SP’s availability for OPs so that the system selects the peer with(More)
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