67 research outputs found

    Impact of Gamification on an Online Middle School Classroom

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    Gamification is defined as the use of game elements in non-game contexts. The gamified element explored in this thesis is a leaderboard with various forms of engagement being tabulated. This study investigates the impact a leaderboard has on the behavioral engagement of an online middle school classroom. Research has revealed that elements of gamification can increase engagement but there is a gap in research that focuses solely on a leaderboard as an intervention to increase engagement. Also missing from the literature were studies conducted in middle school settings. The study presented in this thesis addresses these limitations and provides value to the knowledge base. A quasi experimental study using classroom observations was conducted. During the study, a total of 8 classes (4 control and 4 intervention) of an online English Language Arts class were observed over the period of 5 weeks. During the intervention, a leaderboard was used to measure behavioral engagement

    Sleep-Deprivation Regulates α-2 Adrenergic Responses of Rat Hypocretin/Orexin Neurons

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    We recently demonstrated, in rat brain slices, that the usual excitation by noradrenaline (NA) of hypocretin/orexin (hcrt/orx) neurons was changed to an inhibition following sleep deprivation (SD). Here we describe that in control condition (CC), i.e. following 2 hours of natural sleep in the morning, the α2-adrenergic receptor (α2-AR) agonist, clonidine, had no effect on hcrt/orx neurons, whereas following 2 hours of SD (SDC), it hyperpolarized the neurons by activating G-protein-gated inwardly rectifying potassium (GIRK) channels. Since concentrations of clonidine up to a thousand times (100 µM) higher than those effective in SDC (100 nM), were completely ineffective in CC, a change in the availability of G-proteins is unlikely to explain the difference between the two conditions. To test whether the absence of effect of clonidine in CC could be due to a down-regulation of GIRK channels, we applied baclofen, a GABAB agonist known to also activate GIRK channels, and found that it hyperpolarized hcrt/orx neurons in that condition. Moreover, baclofen occluded the response to clonidine in SDC, indicating that absence of effect of clonidine in CC could not be attributed to down-regulation of GIRK channels. We finally tested whether α2-ARs were still available at the membrane in CC and found that clonidine could reduce calcium currents, indicating that α2-ARs associated with calcium channels remain available in that condition. Taken together, these results suggest that a pool of α2-ARs associated with GIRK channels is normally down-regulated (or desensitized) in hcrt/orx neurons to only become available for their inhibition following sleep deprivation

    Survival and integration: Kachin social networks and refugee management regimes in Kuala Lumpur and Los Angeles

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    How do refugees establish social networks and mobilise social capital in different contexts throughout a multi-stage migration process? Migrant social network literature explains how migrants accumulate social capital and mobilise resources in and between origin and destination but provides limited answers regarding how these processes unfold during refugee migrations involvingprotracted stays in intermediate locations and direct interaction with state agents. Drawing from ethnographic fieldwork with Kachin refugees in Kuala Lumpur and Los Angeles, I address these gaps by comparing refugee social networks in two sites of a migration process. Distinguishingbetween networks of survival and networks of integration, I argue that differences in their form and functions stem from their interactions with local refugee management regimes, which are shaped by broader state regulatory contexts. In both locations, these networks and regimes feed off each other to manage the refugee migration process, with key roles played by hybrid institutions rooted in grassroots adaptation efforts yet linked to formal resettlement mechanisms. Considering the refugee migration process as a whole, I show that Kachin refugees demonstrate their possession of socialcapital gained during the informal social process of migration to advance through institutionalised political processes of resettlement in each context

    Accelerated surgery versus standard care in hip fracture (HIP ATTACK): an international, randomised, controlled trial

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    A comprehensive wireless neurological and cardiopulmonary monitoring platform for pediatrics.

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    Neurodevelopment in the first 10 years of life is a critical time window during which milestones that define an individual's functional potential are achieved. Comprehensive multimodal neurodevelopmental monitoring is particularly crucial for socioeconomically disadvantaged, marginalized, historically underserved and underrepresented communities as well as medically underserved areas. Solutions designed for use outside the traditional clinical environment represent an opportunity for addressing such health inequalities. In this work, we present an experimental platform, ANNE EEG, which adds 16-channel cerebral activity monitoring to the existing, USA FDA-cleared ANNE wireless monitoring platform which provides continuous electrocardiography, respiratory rate, pulse oximetry, motion, and temperature measurements. The system features low-cost consumables, real-time control and streaming with widely available mobile devices, and fully wearable operation to allow a child to remain in their naturalistic environment. This multi-center pilot study successfully collected ANNE EEG recordings from 91 neonatal and pediatric patients at academic quaternary pediatric care centers and in LMIC settings. We demonstrate the practicality and feasibility to conduct electroencephalography studies with high levels of accuracy, validated via both quantitative and qualitative metrics, compared against gold standard systems. An overwhelming majority of parents surveyed during studies indicated not only an overall preference for the wireless system, but also that its use would improve their children's physical and emotional health. Our findings demonstrate the potential for the ANNE system to perform multimodal monitoring to screen for a variety of neurologic diseases that have the potential to negatively impact neurodevelopment
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