5,551 research outputs found
Police responses to cyberstalking during the Covid-19 pandemic in the UK
This research aims to explore how police officers responded to cyberstalking during the unprecedented period of the Covid-19 pandemic (March 2020-April 2021). More specifically, it aims to report the police experience of responding to cases of stalking, including cyberstalking, during this period; to explore officer confidence in identifying cyberstalking and to explore the challenges faced by frontline police. One hundred and two frontline police officers from two forces in the South of England took part in the online survey and, subsequently, ten officers and six key stakeholders each participated in a one-hour qualitative interview. The data indicates that the Covid-19 pandemic has prompted an increase in cyberstalking, and this has been attributed, by both the police and stakeholders, to the lockdown whereby people worked from home, had more time to become tech savvy and, as a result, developed digital skills that facilitate cyberstalking. Furthermore, it emerged that there is professional uncertainty among officers surrounding cyberstalking and how to deal with the problem effectively. However, this uncertainty is unquestionably not related to the lack of officersâ motivation, but to absence of a stalking screening tool that addresses cyberstalking, accompanied by effective multiagency training that would assist officers to understand the nature of the issue and to respond to it effectively
Frontline response: exploring the impact of COVIDâ19 on stalking behaviours
COVID-19 pandemic lockdown changed the way in which we engage with others and our ability to enjoy free movement away from the confinement of our own homes. Whilst this dramatic change affected everyone, it constituted something much more threatening for victims of stalking, repeatedly targeted by those with an obsessive and fixated behaviour. Whilst we know more about the impact of lockdown stalking behaviour, very little is known about how the police and frontline workers are responding to this challenge. This research aims to increase an understanding of stalking in this context. Firstly, it presents a quantitative examination of recorded data on stalking offences provided by all 43 police forces across England and Wales. In addition, it explores the experiences of those working on the frontline who respond to reports of stalking made by victims. A total of 15 in-depth interviews were conducted with twelve police officers from three forces in England, as well as three advocates of victims from two national stalking services. Analyses show that stalking behaviour has increased and evolved to use accessible channels alongside the COVID restrictions. In conclusion, considerable pressure has been placed on front- line workers to adapt and respond not only to increased incidents but also the changes in the nature of stalking behaviour
Bulk and boundary factorized S-matrices
We investigate the -invariant bulk (1+1D, factorized) -matrix
constructed by Ogievetsky, using the bootstrap on the three-point coupling of
the vector multiplet to constrain its CDD ambiguity. We then construct the
corresponding boundary -matrix, demonstrating it to be consistent with
symmetry.Comment: 7 page
A generalized quantum microcanonical ensemble
We discuss a generalized quantum microcanonical ensemble. It describes
isolated systems that are not necessarily in an eigenstate of the Hamilton
operator. Statistical averages are obtained by a combination of a time average
and a maximum entropy argument to resolve the lack of knowledge about initial
conditions. As a result, statistical averages of linear observables coincide
with values obtained in the canonical ensemble. Non-canonical averages can be
obtained by taking into account conserved quantities which are non-linear
functions of the microstate.Comment: improved version, new titl
Non-LTE Modeling of Nova Cygni 1992
We present a grid of nova models that have an extremely large number of
species treated in non-LTE, and apply it to the analysis of an extensive time
series of ultraviolet spectroscopic data for Nova Cygni 1992. We use
ultraviolet colors to derive the time development of the effective temperature
of the expanding atmosphere during the fireball phase and the first ten days of
the optically thick wind phase. We find that the nova has a pure optically
thick wind spectrum until about 10 days after the explosion. During this
interval, we find that synthetic spectra based on our derived temperature
sequence agree very well with the observed spectra. We find that a sequence of
hydrogen deficient models provides an equally good fit providing the model
effective temperature is shifted upwards by ~1000 K. We find that high
resolution UV spectra of the optically thick wind phase are fit moderately well
by the models. We find that a high resolution spectrum of the fireball phase is
better fit by a model with a steep density gradient, similar to that of a
supernova, than by a nova model.Comment: 24 pages, 17 figures, Accepted by Astrophysical Journa
Elucidating the Thermal Response of W-Ta Alloys with Transient Grating Spectroscopy, TEM and Atomistic Simulation
Critical for tungsten alloysâ use as plasma-facing component materials are their thermal response and their evolution under irradiation. Utilising Transient Grating Spectroscopy, TEM, and Molecular Dynamics, this study sought to probe these changes in W, W6Ta, and W11Ta alloys. Irradiation with 12.25 MeV W6+ ions was carried out in the CLASS facility at MIT at a temperature of 500°C for doses of 0.1, 0.3, and 1.0 dpa. The alloysâ thermal diffusivity was found to degrade less than that of the pure counterpart. Molecular Dynamics simulation revealed that this was due to a reduced defect population below TEM resolution. Despite these alloys showing enhanced resilience to thermal property degradation, it was found that the absolute values of their thermal diffusivity remained below that of pure tungsten. This study highlighted a key interplay between enhancing radiation tolerance with alloying additions and the alloy additionsâ initial negative effect on the thermal response and thus in-service behaviour
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