984 research outputs found

    Advocating with Personal Stories: An Evaluation Toolkit

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    This evaluation toolkit, based on a previous literature review and field scan work, provides a step-by-step guide to storyteller advocates who are interested in doing evaluation work in-house

    Design Optimization for Manufacturing for Farrowing System

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    Designing a farrowing system; Keeping it manufacturable; Keeping it functional; Keeping it within cost parameters

    JME 4110 Weight Powered LED

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    This project demonstrates a way to get “free energy” – the only power source lighting an LED being a weight slowly falling to the ground. The design is relatively inexpensive and has no waste. It has numerous applications, especially in Third World countries that may not have access to any electricity, much less clean power

    Validating Spray Coverage Rate Using Liquid Mass on a Spray Card

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    Validation of agricultural sprayers is important for quantifying as-applied coverage rates under field conditions. The complexity of modern sprayer control systems presents a challenge for precise field validation due to the use of nozzle control technologies, such as pulse width modulation, to meter chemical flow rates at individual nozzles. Non-uniform flow over time may result in local variations at high spatial resolutions that are ignored when estimating as-applied coverage rates across a field. The purpose of this study was to test several methods for estimating the mass of water applied to a water-sensitive paper spray card target using steady-state and instantaneous measurement techniques. The steady-state method consisted of a spray patternator table used to quantify the mass flow rate distribution across the nozzle width at varying nozzle pressures. The mass flow rate was then projected onto a two-dimensional area traveling across the spray width to calculate the mass of water that was deposited in the area. Two instantaneous sampling methods were used. The first method directly measured the mass of the spray card and water for 5 min after exposure to model the evaporation rate and solve for the initial mass at the time of exposure. The second method indirectly used the percent coverage of the exposed spray card by droplets. Results showed that the error between the calculated mass of water from the mass flow rate and the estimated initial mass of water from the evaporation rate varied between 2% and 8%. The relationships between the calculated and estimated initial mass of water methods and the spray card percent coverage were highly linear (R2 \u3e 0.98). Both instantaneous methods produced results with higher variability between replications than the steady-state method, but the number of replications resulted in acceptably small differences between average mass measurements. These results show the potential for using evaporation rates for laboratory validation and percent coverage for laboratory or field validation of as-applied coverage rates

    Simple Congenital Hamartoma of the Retinal Pigment Epithelium

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    This is a Photo Essay and does not have an abstract

    Relación entre inteligencia emocional y suicidio: una revisión sistemática

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    En Colombia actualmente existen numerosas problemáticas de salud pública, sin embargo, el suicidio es uno de los más prevalentes. Este problema es precedido por un conjunto de eventos que buscan de forma intencional acabar con la vida, y esto se conoce como comportamiento o conducta suicida, el cual es consecuencia de reacciones emocionales mal gestionadas que entrañan un déficit en la inteligencia emocional de un individuo; es por eso que esta es de vital importancia, ya que permite que un sujeto conozca, comprenda y gestione de manera asertiva las diferentes emociones que experimenta a lo largo de su existencia. Objetivo: Conocer/identificar la relación que existe entre el suicidio y la inteligencia emocional.In Colombia there are currently numerous public health problems, however, suicide is one of the most prevalent. This problem is preceded by a set of events that intentionally seek to end life, and this is known as suicidal behavior or behavior, which is a consequence of poorly managed emotional reactions that entail a deficit in the emotional intelligence of an individual; that is why this is of vital importance, since it allows a subject to know, understand and assertively manage the different emotions that he experiences throughout his existence. Objective: To know/identify the relationship between suicide and emotional intelligence

    Opening the door : midwives' perceptions of two models of psychosocial assessment in pregnancy : a mixed methods study

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    BACKGROUND: One in five women experience psychological distress in the perinatal period. To support women appropriately, Australian guidelines recommend routine depression screening and psychosocial risk assessment by midwives in pregnancy. However, there is some evidence that current screening processes results in higher rates of false positives. The Perinatal Integrated Psychosocial Assessment (PIPA) Project compared two models of psychosocial assessment and referral - Usual Care and the PIPA model - with a view to improving referral decisions. This paper describes midwives' perspectives on psychosocial assessment, depression screening and referral at the antenatal booking appointment and compares midwives' experiences with, and perspectives on, the two models of care under investigation. METHODS: A two-phase, convergent mixed methods design was used. Midwives providing antenatal care completed a self-report survey in phase one prior to implementation of the new model of psychosocial assessment (n = 26) and again in phase two, following implementation (n = 27). Sixteen midwives also participated in two focus groups in phase two. Quantitative and qualitative data were compared and integrated in the presentation of results and interpretation of findings. RESULTS: Midwives supported psychosocial assessment believing it was a catalyst for 'Opening the door" to conversations with women. Midwives were comfortable asking the questions and tailored their approach to build rapport and trust. Overall. midwives expressed favourable views towards the PIPA model. A greater proportion of midwives relied mostly or entirely on the suggested wording for the psychosocial questions in the PIPA model compared to Usual Care (44.4% vs 12.0%, χ2=5.17, p=.023, φ =-.36). All midwives reported finding the referral or action message displayed at the end of the PIPA psychosocial assessment to be 'somewhat' or 'very' helpful, compared to 42.3% in Usual Care (χ2 = 18.36, p < .001, φ = -.64). Midwives were also more likely to act on or implement the message often or all of the time) in the PIPA model (PIPA = 69.2% vs Usual Care = 32.0%, (χ2 = 5.66, p < .017, φ = -.37). CONCLUSION: The study identified benefits of the new model and can inform improvements in psychosocial screening, referral and related care processes within maternity settings. The study demonstrates that psychosocial assessment can, over time, become normalised and embedded in practice

    When does perceptual organization happen?

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    Reflectional (mirror) symmetry is an important visual cue for perceptual organization. The brain processes symmetry rapidly and efficiently. Previous work suggests that symmetry activates the extrastriate cortex and generates an event related potential (ERP) called the Sustained Posterior Negativity (SPN). It has been claimed that no tasks completely block symmetry processing and abolish the SPN. We tested the limits of this claim with a series of eight new Electroencephalography (EEG) experiments (344 participants in total). All experiments used the same symmetrical or asymmetrical dot patterns. When participants attended to regularity in Experiment 1, there was a substantial SPN (Mean amplitude = -2.423 μV). The SPN was reduced, but not abolished, when participants discriminated dot luminance in Experiments 2 and 3 (-.835 and -1.410 μV) or the aspect ratio of a superimposed cross in Experiments 4 and 5 (-.722 and -.601 μV). The SPN also survived when the background pattern was potentially disruptive to the primary task in Experiment 6 (-1.358 μV) and when participants classified negative superimposed words in Experiment 7 (-.510 μV). Finally, the SPN remained when participants attended to the orientation of a diagonal line in Experiment 8 (-.589 μV). While task manipulations can turn down the extrastriate symmetry activation, they cannot render the system completely unresponsive. Permanent readiness to detect reflectional symmetry at the centre of the visual field could be an evolved adaptation
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