543 research outputs found

    ‘Aimless and Absurd Wanderings’? Children at the Museum of Old and New Art (Mona)

    Get PDF
    AbstractThis article reports on the experience of children at the Museum of New and Old Art (Mona) in Hobart, Tasmania.  Referred to by its innovative owner as a ‘subversive adult Disneyland’, Mona went further than most new contemporary art galleries in designing a radically new experience of art.  It captured the imagination of people new to art in its own locality as well as a global art public.  Favoured by leading international contemporary artists for the freedom it gave art unmediated by art history, Mona also seemingly captured the imagination of children. Through an ethnographic approach in which five young children’s visits were documented in great detail, the article considers these in the light of children’s experiences of previous exhibitionary platforms and the relevance of Mona’s museological interventions for building their dispositions to art and broadening art publics

    Hydrogel Microfluidic System to Control Oxygen Gradients for Breast Cancer Cells

    Get PDF
    Cancer is one of the leading causes of mortality worldwide. One challenge is understanding how cancer cells react to heterogenous tumor environments. There are many practices for researching cancer, but microfluidics provides a new approach; therefore, the goal of the project was to observe human breast cancer cells within a 3D microfluidic system. Sharp, predictable oxygen gradients can be modeled and effects such as viability, proliferation, and migration of the cells can be observed. Three gradient lengths were tested and analyzed in the PDMS device and were produced by flowing nitrogen (0% O2) and compressed air (21% O2): sharp (100um), intermediate (700um), and shallow (5mm). The sharp gradient device produced the most migration and proliferation in the hyperoxic region

    The Impact of Fall Efficacy on Occupational Performance in Community-Dwelling Older Adults

    Get PDF
    Falls are a major health concern in the older adult (OA) population. While there is research on falls and their prevention, research on how low fall efficacy (FE) impacts the occupational engagement of the OA population is limited. FE is defined as the confidence a person has in his/her ability to complete a task without falling (Tinetti & Powell, 1993). A qualitative study was conducted using a phenomenological approach to explore the lived experiences of OAs with low FE and the impact on occupational performance. Participants who scored ≤ 6 on the Modified Fall Efficacy Scale (MFES) engaged in a semi-structured interview, that explored the relationship between low FE and participation in occupations. Researchers asked open-ended questions to explore the activities impacted by participants low FE. A constant comparison method was utilized to analyze the interviews. The findings suggested that participants discontinued certain occupations due to a poor fit between the environment and the occupational challenges. However, those who experienced a good fit between the environment and the occupational challenges continued to participate in the activity using environmental modifications when needed. The occupations that had the lowest average scores on the MFES were occupations that mandated a narrow base of support (BOS) and the shifting of one’s weight. Therefore, occupational performance was impacted by the demands of the activity, the functional ability of the person, and environmental modifications

    The Impact of Fall Efficacy on Occupational Performance in Community-Dwelling Older Adults

    Get PDF
    Falls are a major health concern in the older adult (OA) population. While there is research on falls and their prevention, research on how low fall efficacy (FE) impacts the occupational engagement of the OA population is limited. FE is defined as the confidence a person has in his/her ability to complete a task without falling (Tinetti & Powell, 1993). A qualitative study was conducted using a phenomenological approach to explore the lived experiences of OAs with low FE and the impact on occupational performance. Participants who scored ≤ 6 on the Modified Fall Efficacy Scale (MFES) engaged in a semi-structured interview, that explored the relationship between low FE and participation in occupations. Researchers asked open-ended questions to explore the activities impacted by participants low FE. A constant comparison method was utilized to analyze the interviews. The findings suggested that participants discontinued certain occupations due to a poor fit between the environment and the occupational challenges. However, those who experienced a good fit between the environment and the occupational challenges continued to participate in the activity using environmental modifications when needed. The occupations that had the lowest average scores on the MFES were occupations that mandated a narrow base of support (BOS) and the shifting of one’s weight. Therefore, occupational performance was impacted by the demands of the activity, the functional ability of the person, and environmental modifications.https://scholar.dominican.edu/ug-student-posters/1087/thumbnail.jp

    Identification of senescence and death in Emiliania huxleyi and Thalassiosira pseudonana: Cell staining, chlorophyll alterations, and dimethylsulfoniopropionate (DMSP) metabolism

    Get PDF
    We measured membrane permeability, hydrolytic enzyme, and caspase-like activities using fluorescent cell stains to document changes caused by nutrient exhaustion in the coccolithophore Emiliania huxleyi and the diatom Thalassiosira pseudonana, during batch-culture nutrient limitation. We related these changes to cell death, pigment alteration, and concentrations of dimethylsulfide (DMS) and dimethylsulfoniopropionate (DMSP) to assess the transformation of these compounds as cell physiological condition changes. E. huxleyi persisted for 1 month in stationary phase; in contrast, T. pseudonana cells rapidly declined within 10 d of nutrient depletion. T. pseudonana progressively lost membrane integrity and the ability to metabolize 5-chloromethylfluorescein diacetate (CMFDA; hydrolytic activity), whereas E. huxleyi developed two distinct CMFDA populations and retained membrane integrity (SYTOX Green). Caspase-like activity appeared higher in E. huxleyi than in T. pseudonana during the post-growth phase, despite a lack of apparent mortality and cell lysis. Photosynthetic pigment degradation and transformation occurred in both species after growth; chlorophyll a (Chl a) degradation was characterized by an increase in the ratio of methoxy Chl a : Chl a in T. pseudonana but not in E. huxleyi, and the increase in this ratio preceded loss of membrane integrity. Total DMSP declined in T. pseudonana during cell death and DMS increased. In contrast, and in the absence of cell death, total DMSP and DMS increased in E. huxleyi. Our data show a novel chlorophyll alteration product associated with T. pseudonana death, suggesting a promising approach to discriminate nonviable cells in nature

    Comparison of Three Intraoperative Warming Devices

    Get PDF
    Thermal homeostasis is important for the overall well-being of people and animals. Hypothermia is common during and after surgeries. The combination of anesthesia, exposure to a relatively cold operating room environment, evaporation from surgical incisions, and conductive cooling produced by administration of relatively cool intravenous fluids can result in unintended perioperative hypothermia. Anesthesia-induced hypothermia may alter physiological mechanisms of thermoregulation and may lead to prolonged duration of drug action, myocardial ischemia, coagulopathies, decreased resistance to surgical wound infections, and prolonged recovery time. Unless active warming measures are taken, the patient will lose body heat and endure hypothermic consequences. Therefore, proactive warming measures are needed to prevent excessive heat loss from the patient to the environment. The goal of any warming device is to prevent intraoperative hypothermia or treat preexisting hypothermia. The efficacy of three active warming devices (T/pump circulating water, Bair Hugger, and Thermal-V) that may be used alone or in combination to minimize intraoperative hypothermia when applied to patients undergoing prolonged surgeries were evaluated. Our hypothesis was that the Thermal-V warming unit would be comparable or better than the other units. There were no statistically significant differences between patient temperatures for each warming device in surgeries that lasted 180 minutes. The combined circulating water blanket and forced air warming system and forced air warming device used alone were significantly better in preventing excessive heat loss in patients undergoing celiotomies. The Thermal-V unit was able to prevent excessive heat loss in patients undergoing surgeries up to 150 minutes. Mean patient weight, body condition score, ASA status, and duration of surgical procedures did not have any significant effect on the outcome. Ambient operating room temperature, pre-operative temperature, temperature at time of induction, and temperature at time of sterile preparation did not have any significant effect on the results either. Given some of the drawbacks with other warming systems, the Thermal-V offers an alternative method of active warming with advantages in terms of cost and application to a wide variety of surgical procedures.Veterinary Pathobiolog

    Case 10 : Moving Towards an Inclusive Society: Implementing Epilepsy Awareness Education in the Ontario Elementary School Health Curriculum

    Get PDF
    This case revolves around the stigma experienced by individuals living with epilepsy. It discusses how Martha, a strategic planner at the Epilepsy Support Centre in London, Ontario, identified the negative health and social implications that confront individuals living with epilepsy. It then sets the stage in terms of problems faced by children and adolescents with epilepsy who are living in London, Ontario, and in terms of public health issues, school boards and government, and future directions. As this is a new initiative that is designed to be introduced into the school curriculum, it is crucial to have appropriate and influential stakeholders on board to actualize this epilepsy awareness program

    The potential of distributed acoustic sensing (DAS) in teleseismic studies: insights from the Goldstone experiment

    Get PDF
    Distributed acoustic sensing (DAS) is a recently developed technique that has demonstrated its utility in the oil and gas industry. Here we demonstrate the potential of DAS in teleseismic studies using the Goldstone OpticaL Fiber Seismic experiment in Goldstone, California. By analyzing teleseismic waveforms from the 10 January 2018 M7.5 Honduras earthquake recorded on ~5,000 DAS channels and the nearby broadband station GSC, we first compute receiver functions for DAS channels using the vertical‐component GSC velocity as an approximation for the incident source wavelet. The Moho P‐to‐s conversions are clearly visible on DAS receiver functions. We then derive meter‐scale arrival time measurements along the entire 20‐km‐long array. We are also able to measure path‐averaged Rayleigh wave group velocity and local Rayleigh wave phase velocity. The latter, however, has large uncertainties. Our study suggests that DAS will likely play an important role in many fields of passive seismology in the near future

    Creating a Professional Development Plan for a Simulation Consortium

    Get PDF
    As the United States struggles with health care reform and a nursing education system that inadequately prepares students for practice, dramatic advances in educational technology signal opportunities for both academic and practicing nurses to affect our profession as never before. Simulation technologies provide large and small institutions with the means to educate health care students and novice professionals effectively and efficiently through hands-on experience, but the costs of such a venture can be prohibitive. A simulation consortium offers a venue for different health care and educational institutions with shared goals to pool knowledge, monies, and labor toward health care education throughout a geographic area. This article details one Midwestern U.S. region's work in creating a professional development plan for a new simulation consortium
    corecore