Abstract Agriculture around the world needs to become more environmentally sustainable limit further environmental degradation and impacts of climate change. Many governments try achieve this through enrolling farmers in agri‐environment schemes (AES) that encourage them undertake conservation activities. Studies show AES can suffer from low uptake, meaning their objectives remain unattained. To succeed for people nature, policy‐makers are increasingly adopting multi‐actor approaches...

Knowledge of the largest traffic ows in a network is important for many management applications. The problem finding these known as heavy-hitter and has been subject studies past years. One most efficient well-known algorithms heavy hitters lossy counting [29]. In this work we introduce probabilistic (PLC), which enhances computing hitters. PLC uses on tighter error bound estimated sizes provides rather than deterministic guarantees its accuracy. probabilistic-based substantially improves...

Abstract Animal nervous systems can detect changes in their environments within hundredths of a second. They do so by discerning abrupt shifts sensory neural activity. Many neuroscience studies have employed change-point detection (CPD) algorithms to estimate such But very few suggested that spiking neurons themselves are online detectors. We show leaky integrate-and-fire (LIF) neuron implements an CPD algorithm for compound Poisson process. quantify the performance LIF under various regions...

Finite rate of innovation (FRI) is a powerful reconstruction framework enabling the recovery sparse Dirac streams from uniform low-pass filtered samples. An extension this framework, called generalised FRI (genFRI), has been recently proposed for handling cases with arbitrary linear measurement models. In context, signal amounts to solving joint constrained optimisation problem, yielding estimates both Fourier series coefficients stream and its so-called annihilating filter, involved in...

Objectives In this paper, we use a UK case study to explore how the COVID-19 pandemic affected mental health (emotional, psychological, social wellbeing) of farmers. We outline drivers poor farming health, manifold impacts at time policy and environmental change, identify lessons that can be learned develop resilience in communities against future shocks.Methods undertook survey answered by 207 farmers across UK, focusing on effect pandemic. also conducted 22 in-depth interviews with...

Abstract Poor mental health is an important and increasingly prevalent issue facing the farming industry. The adaptability of what we, in this article, describe as ‘landscapes support’ for to allow support systems adapt successfully times crisis. term refers range sources available farmers, including government, third sector bodies farming/community groups. This article seeks understand factors influencing these landscapes support, especially at a time Using case study UK, we undertook...

A new construction method for codes using encodings from group rings is described and presented. They consist primarily of two types: zero-divisor unit derived codes. Previous focused on ideals; example, cyclic are ideals in the ring over a group. The fresh focus themselves, which only under very limited conditions result ideals. authors use that isomorphic to certain well-defined matrices thus, every element has an associated matrix. This allows matrix algebra be used as needed study...

While restoration methods have been extensively studied in ultrasound (US) imaging, only few recent works focused on modeling and understanding the blur from a physical point of view even simple configurations, such as lossless homogeneous media. Despite highly nonstationary due to diffraction effects, many techniques rely simplistic approximations based shift-invariant models or sectional their efficiency has not demonstrated for plane-wave (PW) diverging-wave (DW) imaging. In this paper,...

Interest in distributed storage is fueled by demand for reliability and resilience combined with ubiquitous availability. Peer-to-peer (P2P) networks are known their decentralized control, self-organization, adaptation. Advanced searching documents resources remains an open problem. The flooding approach favored some P2P inefficient resource usage, but more scalable resource-efficient solutions based on hash tables (DHT) lack query expressiveness flexibility. In this paper, we address issue...

We propose a new, general, method for spatial filtering by beam-forming. The desired filter, specified analytically on an n-dimensional sphere, is extended to n+1-dimensional Euclidean space. A continuous beamforming function then obtained the Fourier transform of filter. weight at given array element corresponds sample location., scheme generalisation focused single point phase difference alignment. analytic framework allows tractable, stable determination weights, and clear filter...

Context. Two main classes of imaging algorithms have emerged in radio interferometry: the CLEAN algorithm and its multiple variants, compressed-sensing inspired methods. They are both discrete nature, estimate source locations intensities on a regular grid. For traditional CLEAN-based pipeline, resolution power tool is limited by width synthesized beam, which inversely proportional to largest baseline. The finite rate innovation (FRI) framework robust method find point-sources continuum...

A new construction method for codes using encodings from group rings is presented. They consist primarily of two types, zero-divisor and unit-derived codes. Previous focused on ideals; e.g. cyclic are ideals in the ring over a group. The fresh focus themselves, which only under very limited conditions result ideals. Using an isomorphism between certain well- defined matrices, equivalent matrix established with resulting generator check matrices. Group fruitful source units zero-divisors...

The point spread function (PSF), namely the response of an ultrasound system to a source, is powerful measure quality imaging system. lack analytical formulation inhibits many applications ranging from apodization optimization, array-design, and deconvolution algorithms. We propose fill this gap through general PSF derivation that flexible with respect type transmission (synthetic aperture, plane-wave, diverging-wave etc.), while faithfully capturing spatially-variant blurring Tissue...

Real-time performance analysis of processor behaviour requires the efficient gathering micro-architectural information from cores. Such can be expected to highly structured allowing it compressed, but computational burden conventional compression techniques exclude their use in this environment. We consider new mathematical that allow a signal compressed and recovered relatively small number samples. These techniques, collectively termed compressive sampling, are asymmetric is simple,...

In our demo, we present two hardware platforms for prototyping audio array signal processing. Pyramic is a 48-channel microphone fitted on an FPGA and Compact Six portable with six microphones, closer to the technical constraints of consumer electronics. A browser based interface was developed that allows user interact stream from arrays in real time. The software component this demo Python module implementations basic processing blocks popular techniques like STFT, beamforming, DoA. Both...

This report discusses findings from the study “Inclusive design of post-Brexit Agri-Environmental policy: Identifying and engaging the 'harder to reach' stakeholders” - funded by Sheffield University undertaken in collaboration with the University Reading. The study (Feb/March 2020) involved 25 semi-structured interviews experts working hard reach a teleconference with 11 practitioners agri-environment schemes. will be interest policymakers undertaking policy co-design agri-environmental...

We propose a sparse reconstruction method based on compressed sensing theory for aperture synthesis imaging. Our algorithm directly works observational data without grid-ding. achieve fast convergence by introducing an adaptive tolerance parameter the noise level and thresholding value cumulative sum of power estimated source components. demonstrate accuracy in estimating positions intensities extremely low signal-to-noise (SNR) scenarios Monte Carlo simulation. could recover both point...

Consistent implementation of hand‐washing within the hospital environment remains a challenge in infection prevention ( IP ) procedures. is one number measures to tackle antimicrobial resistance AMR ). A cross‐disciplinary team was assembled experiment with different ways visualising microbial. The paper details comparative experimental design where nurses n = 2) performed series routine care procedures mock‐ward setting traces coloured ultra‐violet glow‐powders had been purposely placed,...