62 research outputs found
Augmenting Heritage: An Open-Source Multiplatform AR Application
AI NeRF algorithms, capable of cloud processing, have significantly reduced
hardware requirements and processing efficiency in photogrammetry pipelines.
This accessibility has unlocked the potential for museums, charities, and
cultural heritage sites worldwide to leverage mobile devices for artifact
scanning and processing. However, the adoption of augmented reality platforms
often necessitates the installation of proprietary applications on users'
mobile devices, which adds complexity to development and limits global
availability. This paper presents a case study that demonstrates a
cost-effective pipeline for visualizing scanned museum artifacts using mobile
augmented reality, leveraging an open-source embedded solution on a website
An Accessible Toolkit for 360 VR Studies
Virtual reality is expected to play a significant role in the transformation
of education and psychological studies. The possibilities for its application
as a visual research method can be enhanced as established frameworks and
toolkits are made more available to users, not just developers, advocates, and
technical academics, enhancing its controlled study impact. With an accessible
first design approach, we can overcome accessibility constraints and tap into
new research potential. The open-sourced toolkit demonstrates how game engine
technologies can be utilized to immerse participants in a 360-video environment
with curated text displayed at pre-set intervals. Allowing for researchers to
guide participants through virtual experiences intuitively through a desktop
application while the study unfolds in the users VR headset.Comment: for associated github repo,
https://github.com/corriedotdev/vr-360-playe
Modular 3D Interface Design for Accessible VR Applications
Designed with an accessible first design approach, the presented paper
describes how exploiting humans proprioception ability in 3D space can result
in a more natural interaction experience when using a 3D graphical user
interface in a virtual environment. The modularity of the designed interface
empowers the user to decide where they want to place interface elements in 3D
space allowing for a highly customizable experience, both in the context of the
player and the virtual space. Drawing inspiration from todays tangible
interfaces used, such as those in aircraft cockpits, a modular interface is
presented taking advantage of our natural understanding of interacting with 3D
objects and exploiting capabilities that otherwise have not been used in 2D
interaction. Additionally, the designed interface supports multimodal input
mechanisms which also demonstrates the opportunity for the design to cross over
to augmented reality applications. A focus group study was completed to better
understand the usability and constraints of the designed 3D GUI.Comment: This preprint has not undergone peer review or any post-submission
corrections. The Version of Record of this contribution will be published in
Springer Nature Computer Science book series in Volume HCI International 202
Randomised trials comparing different healthcare settings : an exploratory review of the impact of pre-trial preferences on participation, and discussion of other methodological challenges
BACKGROUND: We recently published a systematic review of different healthcare settings (such as outpatient, community or home) for administering intravenous chemotherapy, and concluded that performing conventionally designed randomised trials was difficult. The main problems were achieving adequate trial accrual rates and recruiting a study population which adequately represented the target population of interest. These issues stemmed from the fact that potential participants may have had pre-trial perceptions about the trial settings they may be allocated; such preferences will sometimes be strong enough for patients to decline an invitation to participate in a trial. A patient preference trial design (in which patients can choose, or be randomised to, an intervention) may have obviated these recruitment issues, although none of the trials used such a design. METHODS: In order to gain a better understanding of the broader prevalence and extent of these preference issues (and any other methodological challenges), we undertook an exploratory review of settings trials in any area of healthcare treatment research. We searched The Cochrane Library and Google Scholar and used snowballing methods to identify trials comparing different healthcare settings. RESULTS: Trial accrual was affected by patient preferences for a setting in 15 of the 16 identified studies; birth setting trials were the most markedly affected, with between 68 % and 85 % of eligible women declining to participate specifically because of preference for a particular healthcare setting. Recruitment into substance abuse and chemotherapy setting studies was also notably affected by preferences. Only four trials used a preference design: the proportion of eligible patients choosing to participate via a preference group ranged from between 33 % and 67 %. CONCLUSIONS: In trials of healthcare settings, accrual may be seriously affected by patient preferences. The use of trial designs which incorporate a preference component should therefore strongly be considered. When designing such trials, investigators should consider settings to be complex interventions, which are likely to have linked components which may be difficult to control for. Careful thought is also needed regarding the choice of comparator settings and the most appropriate outcome measures to be used
Evolutionary Origin and Phylogeography of the Diploid Obligate Parthenogen Artemia parthenogenetica (Branchiopoda: Anostraca)
Background: Understanding the evolutionary origin and the phylogeographic patterns of asexual taxa can shed light on the origin and maintenance of sexual reproduction. We assessed the geographic origin, genetic diversity, and phylogeographic history of obligate parthenogen diploid Artemia parthenogenetica populations, a widespread halophilic crustaceanPeer reviewe
Understanding economic abuse through an intersectional lens: Financial abuse, control and exploitation of South Asian women’s productive and reproductive labours
Existing literature on financial abuse focuses on men’s control over money, goods, assets and over women’s education/work, thereby implicitly constructing economic activity as paid work. This paper responds to this under-recognition of men’s (and in the context of particular communities, their family’s) abuse of and control over women’s unpaid (domestic) labour within a broader conceptualization of economic abuse. Drawing upon life-history interviews with 41 South Asian women from two separate studies in the UK and India, this paper takes an intersectional perspective to explore how gender, migration status, race/ethnicity and class can help understand women’s experiences as a continuum of economic abuse
The chemical constituents of Australian Zanthoxylum species. V. The constituents of Z. pluviatile Hartley; the structures of two new lignans
Quantum cascade laser gain medium modeling using a second-nearest-neighbor sp3s∗ tight-binding model
A ten-band sp3s∗ second-nearest-neighbor tight-binding model has been used to model the electronic structure of various AlxGa1−xAs quantum cascade laser gain media. The results of the calculations have been compared with experimental emission wavelength data, and it has been shown that the model predicts the photon energies at the peaks in the gain coefficient spectra agreeing, on average, to within 4 meV of the experimental values. Comparison of the results of the calculations with results from a two-band k · p model shows that the tight-binding model is able to find the X-like states simultaneously with the Γ-like states. These X-like states were found to be strongly localized within the barriers. Finally, the model has also been applied to InAs/AlSb and InAs/AlSb/GaSb QCLs
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