282 research outputs found

    The gamification of cybersecurity training

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    Due to the rapidly and continued evolving nature of technology, there is a constant need to update police officers’ training in cyber security to ensure that the UK continues to be a secure place to live and do business. Rather than deliver traditional classroom-based training, our project assesses the effectiveness of the delivery of cyber security through the use of games based learning to simulate cybercrimes and provide training in incident response. The aim of our research is to transform the delivery of first responder training in tackling cybercrime.Through the use of a Game Jam and subsequent prototype development, we have trialed training materials that are based on serious games technology. The game poses a common incident reported to the police, for example the problem of a virtual person receiving offensive messages via Facebook and the training reflects the dialogue with that person and the technical steps to ensure that a copy of the evidence has been preserved for further investigation. Evaluation has been conducted with local police officers. Overall, this approach to the large-scale provision of training (potentially to a whole force) is shown to offer potential

    On the use of serious games technology to facilitate large-scale training in cybercrime response

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    As technology becomes pervasive in everyday life, there are very few crimes that don’t have some ‘cyber’ element to them. The vast majority of crime now has some digital footprint; whether it’s from a CCTV camera, mobile phone or IoT device, there exists a vast range of technological devices with the ability to store digital evidence that could be of use during a criminal investigation. There is a clear requirement to ensure that digital forensic investigators have received up-to-date training on appropriate methods for the seizure, acquisition and analysis of digital devices. However, given the increasing number of crimes now involving a range of technological devices it is increasingly important for those police officers who respond to incidents of crime to have received appropriate training.The aim of our research is to transform the delivery of first responder training in tackling cybercrime.A project trialling the use of computer games technology to train officers in cybercrime response is described. A game simulating typical cybercrime scenes has been developed and its use in training first responders has been evaluated within Police Scotland. Overall, this approach to the large-scale provision of training (potentially to a whole force) is shown to offer potential

    The effect of military clothing on gunshot wound patterns in a cadaveric animal limb model

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    The majority of injuries in survivors of gunshot wounds (GSW) are typically to the extremities. Novel wound ballistic research is encouraged to try and capture corporate knowledge on the management of these injuries gained during recent conflicts and understand the wounding patterns seen. With recent work examining the effect of UK military clothing on extremity GSW patterns in a synthetic model, a model with greater biofidelity is needed for ballistic testing. The aim of this study was to assess the effect of UK military clothing on GSW patterns within a cadaveric animal limb model using two types of ammunition commonly used in recent conflicts—7.62 × 39 mm and 5.45 × 39 mm. In total, 24 fallow deer hind limbs were shot, 12 by 7.62 mm projectiles and the remaining 12 shot by 5.45 mm projectiles, further divided into four with no clothing layers (Cnil), four with a single clothing layer (Cmin) and four with maximum clothing layers (Cmax) as worn on active duty by UK military personnel. Limbs were analysed after ballistic impact using contrast CT scanning to obtain measurements of permanent cavity damage, and results were compared using analysis of variance (ANOVA). Results showed significantly different damage measurements within limbs with Cmax for both ammunition types compared with the other clothing states. This may result in GSWs that require more extensive surgical management, and invites further study

    Preliminary effect of projectile yaw on extremity gunshot wounding in a cadaveric animal model: a serendipitous study

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    Gunshot wounding (GSW) is capable of causing devastating tissue injuries by delivering kinetic energy (KE) through the contact surface area of a projectile. The contact surface area can be increased by yaw, deformation and fragmentation, all of which may be caused by any intermediate layers struck by the projectile prior to entering its target. This study aims to describe whether projectile yaw occurring before penetration of a cadaveric animal limb model causes greater damage with or without clothing layers present using 5.45 × 39 mm projectiles. In total, 12 fallow deer hind limbs were shot, further divided into 4 with no clothing layers (Cnil), 4 with a single clothing layer (Cmin) and 4 with maximum clothing layers (Cmax) as worn on active duty by UK military personnel. Contrast computed tomography (CT) of limbs was used to measure permanent cavity size and the results were compared using analysis of variance (ANOVA). No significant differences were found among clothing states for each series of measurements taken, with greater cavity sizes noted in all clothing states. This is in contrast to previous work looking at symmetrically flying projectiles in the same model, where a larger permanent cavity was found only with Cmax present. Projectile yaw is therefore likely to be a key variable with regard to causation of damage within this extremity wound model

    Grayanotoxin I variation across tissues and species of Rhododendron suggests pollinator-herbivore defence trade-offs

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    Grayanotoxin I (GTX I) is a major toxin in leaves of Rhododendron species, where it provides a defence against insect and vertebrate herbivores. Surprisingly, it is also present in R. ponticum nectar, and this can hold important implications for plant-pollinator mutualisms. However, knowledge of GTX I distributions across the genus Rhododendron and in different plant materials is currently limited, despite the important ecological function of this toxin. Here we characterise GTX I expression in the leaves, petals, and nectar of seven Rhododendron species. Our results indicated interspecific variation in GTX I concentration across all species. GTX I concentrations were consistently higher in leaves compared to petals and nectar. Our findings provide preliminary evidence for phenotypic correlation between GTX I concentrations in defensive tissues (leaves and petals) and floral rewards (nectar), suggesting that Rhododendron species may commonly experience functional trade-offs between herbivore defence and pollinator attraction

    Acute kidney injury in patients undergoing elective primary lower limb arthroplasty

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    Acknowledgements The authors would like to thank Abhi Punit for his contributions in data collection towards the above article Funding No funds, grants or other support was received.Open access via springer agreementPeer reviewedPublisher PD

    Ballistic research techniques: visualizing gunshot wounding patterns

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    There are difficulties associated with mapping gunshot wound (GSW) patterns within opaque models. Depending on the damage measurement parameters required, there are multiple techniques that can provide methods of “seeing” the GSW pattern within an opaque model. The aim of this paper was to test several of these techniques within a cadaveric animal limb model to determine the most effective. The techniques of interest were flash X-ray, ultrasound, physical dissection, and computed-tomography (CT). Fallow deer hind limbs were chosen for the model with four limbs used for each technique tested. Quarantined 7.62 × 39 mm ammunition was used for each shot, and each limb was only shot once, on an outdoor range with shots impacting at muzzle velocity. Flash X-ray provided evidence of yaw within the limb during the projectile’s flight; ultrasound though able to visualise the GSW track, was too subjective and was abandoned; dissection proved too unreliable due to the tissue being cadaveric so also too subjective; and lastly, CT with contrast provided excellent imaging in multiple viewing planes and 3D image reconstruction; this allowed versatile measurement of the GSW pattern to collect dimensions of damage as required. Of the different techniques examined in this study, CT with contrast proved the most effective to allow precise GSW pattern analysis within a cadaveric animal limb model. These findings may be beneficial to others wishing to undertake further ballistic study both within clinical and forensic fields

    The Adherence of Singaporean Students in Different Educational Institutions to National Food-Based Dietary Guidelines

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    There are currently limited data on the dietary habits of young Singaporeans. This study aimed to evaluate the adherence of 17–21 year olds attending different educational institutions using a novel diet-quality scoring method. Dietary data were collected using a single weekday 24 h dietary recall in a cross section of 536 Singaporeans aged 17–21 years. An 11 category scoring system (0.0–100.0) was used to define adherence to food based dietary guidelines. Demographic and self-reported data were also collected via a questionnaire, BMI status, and using Mann-Whitney and Kruskal-Wallis (non-parametric) tests, with post-hoc Bonferroni-corrected tests. The median diet quality score was 48.5 (IQR 40.5, 56.4) for this cohort, with component scores for “Total fruit”, “Whole fruit”, “Total vegetables”, “Dark green leafy & orange vegetables”, “Whole grains”, “Dairy products”, and “Sodium” frequently scoring the minimum value. Median diet quality scores were statistically different for groups by ethnic origin (p < 0.001) and by educational institution (p < 0.001). Intake of fruit, vegetables, and whole grains is minimal, while sodium intake is frequently too high in young Singaporeans. Differences across ethnic groups and types of educational institutions suggest the need for targeted interventions to improve dietary habits in this population

    Calcitonin Gene Peptides: The Diagnostic Value of Measurement in Medullary Thyroid Carcinoma

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    The calcitonin gene encodes a family of peptides, at least three of which normally circulate in man: calcitonin (CT), a calcium-lowering hormone; katacalcin (KC), a peptide of unknown function; and calcitonin gene-related peptide (CGRP), a neuropeptide and potent vasodilator. In a study of 45 patients with medullary thyroid carcinoma (MTC), plasma CGRP was elevated in approximately 50% of cases. Furthermore, CGRP levels did not correlate with CT levels. However, plasma KC was elevated in all cases, with a good correlation with CT levels, as has been noted previously. Measurement of CT or KC appears to be superior to measurement of CGRP for the detection of MTC
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