Given a continuous map f : K → M from a 2-dimensional CW complex into a closed surface, the Nielsen root number N f and the minimal number of roots μ f of f satisfy N f ≤ μ f . But, there is a number μC f associated to each Nielsen root class of f, and an important problem is to know when μ f μC f N f . In addition to investigate this problem, we determine a relationship between μ f and μ ̃ f , ...

Over the past few years, point-based POMDP solvers scaled up to produce approximate solutions to mid-sized domains. However, to solve real world problems, solvers must exploit the structure of the domain. In this paper we focus on the topological structure of the problem, where the state space contains layers of states. We present here the Topological Order Planner (TOP) that utilizes the topol...

We demonstrate the first real-space recording of nanoscale dynamic interactions using single-shot soft x-ray (SXR) full-field laser microscopy. A sequence of real-space flash images acquired with a table-top SXR laser was used to capture the motion of a rapidly oscillating magnetic nanoprobe. Changes of 30 nm in the oscillation amplitude were detected when the nanoprobe was made to interact wit...

Skyline and top-k queries are gaining increasing importance in many emerging applications. Current skyline and top-k query processing techniques work on deterministic object attributes and known scores. However, in many practical scenarios these settings are inapplicable. In this paper we focus on web interaction scenarios where each interaction is a data object with a set of possible outcomes ...

Results of a search for supersymmetry via direct production of third-generation squarks are reported, using 20.3 fb−1 of proton-proton collision data at ffiffi s p 1⁄4 8 TeV recorded by the ATLAS experiment at the LHC in 2012. Two different analysis strategies based on monojetlike and c-tagged event selections are carried out to optimize the sensitivity for direct top squark-pair production in ...

The success or failure of the street network depends on its reliability. In this article, using resilience analysis, the author studies how the shape and appearance of street networks in self-organised and top-down planned cities influences urban transport. Considering London and Beijing as proxies for self-organised and top-down planned cities, the structural properties of London and Beijing n...