When a human catches a ball, they estimate future target location based on the current trajectory. How animals, small and large, encode such predictive processes at the single neuron level is unknown. Here we describe small target-selective neurons in predatory dragonflies that exhibit localized enhanced sensitivity for targets displaced to new locations just ahead of the prior path, with suppress

Visually guided predation is range-limited in water, but works over long distances on land. This may have driven our last aquatic ancestors to evolve large eyes on the top of their head for spotting crunchy meals on ancient riverbanks.

Fan worms (Annelida: Sabellidae) are sessile polychaetes that spend their adult lives in tubes and project their fans, composed of radiolar tentacles, up into the water column for respiration and filter feeding. To protect the fan from predation, many species have evolved unique compound eyes on the radioles that function as shadow or motion detectors, eliciting a rapid withdrawal response in reac

Objective. Many computer vision and robotic applications require the implementation of robust and efficient target-tracking algorithms on a moving platform. However, deployment of a real-time system is challenging, even with the computational power of modern hardware. Lightweight and low-powered flying insects, such as dragonflies, track prey or conspecifics within cluttered natural environments,

In this Letter, we study the collective behavior of a large number of self-propelled microswimmers immersed in a fluid. Using unprecedentedly large-scale lattice Boltzmann simulations, we reproduce the transition to bacterial turbulence. We show that, even well below the transition, swimmers move in a correlated fashion that cannot be described by a mean-field approach. We develop a novel kinetic

The photothermoelectric (PTE) effect uses nonuniform absorption of light to produce a voltage via the Seebeck effect and is of interest for optical sensing and solar-to-electric energy conversion. However, the utility of PTE devices reported to date has been limited by the need to use a tightly focused laser spot to achieve the required, nonuniform illumination and by their dependence upon the See

We present a novel action recognition system that is able to learn how to recognize and classify actions. Our system employs a three-layered hierarchy of Self-Organizing Maps together with a supervised neural network for labelling the actions. We have evaluated our system in an experiments consisting of ten different actions from a publicly available data set. The results are encouraging with 83%

‘Sustainability’, often presented through an ecological–economic–social triad, is today one of spatial planning’s absolute key concepts (and key priorities). But it is also a highly contested concept, whose meaning is often considered evasive or vague. In this paper, we try to counterweigh such evasiveness by putting emphasis on the material landscape produced within a project that is frequently d

The production of muons from heavy-flavour hadron decays in p–Pb collisions at sNN=5.02 TeV was studied for 2

Among all the different ways used by the social State to promote higher labour standards the public procurements have always played an important role. Exploiting them economic attractiveness, in fact, most Countries used to insert in them several types of social clauses, so to oblige the awarded tenderer to grant a broad series of rights to the employees involved in the execution of the procuremen

The global extraction of minerals is commonly located in areas populated by indigenous people; and while conflicts between multinational corporations and local activists and indigenous people are widespread today, the understanding of their dynamics are lacking. The Swedish government’s encouragement to an expanding mining industry has caused resistance due to environmental and social implications

Samtidigt som alltfler drabbas av cancer ökar överlevnaden. Det betyder att fler lever med en cancerdiagnos. De närstående ökar i antal och deras insatser för samhället och den enskilde är stora medan behoven i liten grad står utforskade. Genom kvalitativa utforskande intervjuer av närstående till cancersjuka har vi sökt förstå de närståendes upplevelser av sin roll. Berättelserna har visat en spr

Nudging är ett användbart verktyg för att påverka beteenden. Vi bör dra nytta av dess möjligheter att uppnå resultat utan de tvång och begränsningar för individen som traditionella metoder medför, skriver sex experter på beteendepåverkan.