Thermal quality and predation risk are considered important factors influencing habitat patch use in ectothermic prey. However, how the predator's food requirement and the prey's necessity to avoid predation interact with their respective thermoregulatory strategies remains poorly understood. The recently developed 'thermal game model' predicts that in the face of imminent predation, prey shoul...

BACKGROUND Optical coherence tomography (OCT) is a high-resolution sub-surface imaging modality using near-infrared light to provide accurate and high contrast intra-vascular images. This enables accurate assessment of diseased arteries before and after intravascular intervention. This study was designed to corroborate diagnostic imaging equivalence between the Ocelot and the Dragonfly OCT syst...

Interconnection networks are increasing in importance as node counts increase in high-end machines. To achieve better application performance, newer supercomputers frequently have interconnects with more connections, higher bandwidth, and lower diameter. One example of such an interconnect is a dragonfly topology, which has appeared in multiple recent supercomputers. Adaptive routing and high b...

The number of prey killed by diverse predator communities is determined by complementarity and interference among predators, and by traits of particular predator species. However, it is less clear how predators' nonconsumptive effects (NCEs) scale with increasing predator biodiversity. We examined NCEs exerted on Culex mosquitoes by a diverse community of aquatic predators. In the field, mosqui...

A new study has identified a remarkable neuron in the dragonfly brain that chooses and faithfully follows one and only one prey-like visual target, completely ignoring another, thereby demonstrating a form of competitive selection required for visual attention.

Harmonics worsen the quality of electrical signals, hence, there is a need to eliminate them. The test objects under discussion are single-phase versions cascaded H-bridge (CHB) multilevel inverters (MLIs) whose switching angles optimized specific harmonics. Dragonfly Algorithm (DA) used eradicate low-order harmonics, and its statistical performance compared that many other optimization techniq...

thirteen species in five genera of the libellulidae family were collected in a survey of dragonflies (odonata) of shiraz and its vicinity, involving 19 locations, the presented records of the libellulid dragonflies taken from the fars province comprise a first time collection of two genera, sympetrum and pantala, and seven species, orthetrum anceps schnider, orthetrum taeniolatum schneider, ort...

With the rapid development of global industrialization and urbanization, as well continuous expansion population, large amounts industrial exhaust gases automobile are released. To better sound an early warning air pollution, researchers have proposed many pollution prediction methods. However, traditional point methods cannot effectively analyze volatility uncertainty pollution. fill this gap,...