20,207 research outputs found

    Fly Swarms and Complexity

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    A system is considered complex if it is composed of individual parts that abide by their own set of rules while the system, as a whole, exhibits unexpected properties. The motivation for studying complexity spurs from the fact that it is a fundamental aspect of many systems, including forest fires, earthquakes, stock markets, fish schools, plant root growth, and fly swarms. We are particularly interested in fly swarms and the possible complex properties that the swarm exhibits, arising from the individual fly interactions. Fly swarms are a relatively simple complex system, but such systems are still not fully understood. In this research, various computational models were developed to assist with the understanding of fly swarms. These models were primarily described by analyzing the average distance from the center of mass, average distance between flies, and the inertia ratios. The inertia ratios indicated asymmetric fly systems, suggesting some accuracy in such models as physical fly swarms exhibit asymmetry. A major goal of this research was to provide a mathematical definition for swarming. While an arbitrary definition was developed, future research is required to pinpoint a definite definition

    Food Innovation Consultancy Challenge: 'Live' Learning and Professional Development with an Industry Client

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    Abstract What makes you stand out in the market for that great graduate job? In the competitive market for graduate jobs, securing a good degree no longer sets you apart from other candidates – this workshop will show academics how to improve student employability through 'real life' learning in collaboration with leading UK industry businesses. The Food Innovation Consultancy Challenge is part of Sheffield Business School's 'live' strategic pillar offering students consultancy opportunities collaborating with key industry partners. The module forms one-third of students final year grading and has a significant impact on their degree classification. It is designed to improve professional skills through applied learning from a topical real life challenge. Through seamless teaching it provides integrated, exponential, problem-based and active learning, and develops team working and individual skills to get students 'career ready'. Over eighty students worked with Asda Stores plc on a sugar reduction project on Asda Brand biscuits in line with Public Health England targets to help reduce childhood obesity. Students were presented with a brief by the client and using primary and secondary research, along with commercial evaluations provided recommendations for Asda Bourbons, Custard Cream and Milk Chocolate Digestives. The project allowed students to reflect on their career development and future plans, and by using appropriate models and career management theory provide individual input to a group task. The module included a speed dating session with Asda management and culminated with the students presenting their recommendations at Asda House to an academic and Asda panel. The author would like to share the success of the student experience and recommendations to the client with BAM delegates. This academic model is one that satisfies student and industry requirements by providing work experience and self-reflection, action planning and improving student employability. The module was such a success that it appeared in the press in The Grocer and on the BBC. It has become the focus of 'live' module delivery across the whole of the courses within SBS

    Microbial diversity in the thermal springs within Hot Springs National Park

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    The thermal water systems of Hot Springs National Park (HSNP) in Hot Springs, Arkansas exist in relative isolation from other North American thermal systems. The HSNP waters could therefore serve as a unique center of thermophilic microbial biodiversity. However, these springs remain largely unexplored using culture-independent next generation sequencing techniques to classify species of thermophilic organisms. Additionally, HSNP has been the focus of anthropogenic development, capping and diverting the springs for use in recreational bathhouse facilities. Human modification of these springs may have impacted the structure of these bacterial communities compared to springs left in a relative natural state. The goal of this study was to compare the community structure in two capped springs and two uncapped springs in HSNP, as well as broadly survey the microbial diversity of the springs. We used Illumina 16S rRNA sequencing of water samples from each spring, the QIIME workflow for sequence analysis, and generated measures of genera and phyla richness, diversity, and evenness. In total, over 700 genera were detected and most individual samples had more than 100 genera. There were also several uncharacterized sequences that could not be placed in known taxa, indicating the sampled springs contain undescribed bacteria. There was great variation both between sites and within samples, so no significant differences were detected in community structure between sites. Our results suggest that these springs, regardless of their human modification, contain a considerable amount of biodiversity, some of it potentially unique to the study site

    The use of therapeutic untruths by learning disability nursing students

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    Background: The use of therapeutic untruths raises a number of ethical issues, which have begun to be explored to some extent, particularly in dementia care services, where their use has been found to be high. Little is known, however, about their use by health professionals working in learning disability services. Research question: The study aimed to explore the frequency of use of therapeutic untruths by student learning disability nurses, and by their colleagues; how effective the students perceived them to be as a means of responding to behaviours that challenge; and their level of comfort with using them. Research design: A correlational design was used to gather data from an online version of the Best Interest Scale, adapted for a learning disability context. Participants were 30 learning disability student nurses (female = 28, ages 18–48 years, M = 26.8, standard deviation = 7.3) studying at a university in the North-East of England. Ethical considerations: The study was reviewed and received ethical approval from the first author’s university ethics committee. Findings: Overall, 96% of participants reported using therapeutic untruths. ‘Omission’ was the most frequently used type of therapeutic untruths, the most effective and the type that the students felt most comfortable using. Frequency of use of therapeutic untruths correlated significantly and positively with perceived effectiveness and the level of comfort that the students felt when using them, for all types of therapeutic untruths. Conclusion: The use of therapeutic untruths by the student nurses was consistent with that found in research in dementia care services in the United Kingdom and abroad. Further research to explore the generalisability of the results to the wider context of learning disability services is needed. The study highlights that there may be a need for more formal guidance and educational input to student nurses in the use of therapeutic untruths with people with a learning disability

    Activity-promoting gaming systems in exercise and rehabilitation

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    Commercial activity-promoting gaming systems provide a potentially attractive means to facilitate exercise and rehabilitation. The Nintendo Wii, Sony EyeToy, Dance Dance Revolution, and Xbox Kinect are examples of gaming systems that use the movement of the player to control gameplay. Activity-promoting gaming systems can be used as a tool to increase activity levels in otherwise sedentary gamers and also be an effective tool to aid rehabilitation in clinical settings. Therefore, the aim of this current work is to review the growing area of activity-promoting gaming in the context of exercise, injury, and rehabilitation

    The Course of Protein Metabolism in Diabetes Mellitus and Phloridzin Diabetes

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    Enhancing Social Connectedness in Anxiety and Depression Through Amplification of Positivity: Preliminary Treatment Outcomes and Process of Change.

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    BackgroundAnxiety and depressive disorders are often characterized by perceived social disconnection, yet evidence-based treatments produce only modest improvements in this domain. The well-established link between positive affect (PA) and social connectedness suggests that directly targeting PA in treatment may be valuable.MethodA secondary analysis of a waitlist-controlled trial (N=29) was conducted to evaluate treatment response and process of change in social connectedness within a 10-session positive activity intervention protocol-Amplification of Positivity (AMP)-designed to increase PA in individuals seeking treatment for anxiety or depression (ClinicalTrials.gov Identifier: NCT02330627). Perceived social connectedness and PA/negative affect (NA) were assessed throughout treatment. Time-lagged multilevel mediation models examined the process of change in affect and connectedness throughout treatment.ResultsThe AMP group displayed significantly larger improvements in social connectedness from pre- to post-treatment compared to waitlist; improvements were maintained through 6-month follow-up. Within the AMP group, increases in PA and decreases in NA both uniquely predicted subsequent increases in connectedness throughout treatment. However, experiencing heightened NA throughout treatment attenuated the effect of changes in PA on connectedness. Improvements in connectedness predicted subsequent increases in PA, but not changes in NA.ConclusionsThese preliminary findings suggest that positive activity interventions may be valuable for enhancing social connectedness in individuals with clinically impairing anxiety or depression, possibly through both increasing positive emotions and decreasing negative emotions

    Quantifying Complex Systems via Computational Fly Swarms

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    A physical system is considered complex if individual components independently follow simple rules of motion but the system, as a whole, exhibits more elaborate, unexpected properties. Many different systems in nature show properties of complexity, making understanding such systems valuable. We study behaviors of fly swarms and the possible complex properties that swarms exhibit, arising from individual fly interactions. A simple stochastic fly swarm model was created to investigate the relationship between the average radius of the swarm and the number of individuals within it, as experimental data shows a power law scaling of the number of flies to average radius. In addition, this model is used to distinguish between swarming and non-swarming behavior

    Place, space and identity: the manifold experience of transition in and after the military

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    From Crossref via Jisc Publications RouterHistory: epub 2019-03-08, issued 2019-03-0
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