913 research outputs found

    Who Gives? The Determinants of Humanitarian Aid

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    What traits must a state have to donate more humanitarian aid, and why do they do so? Research into this question often uses case studies to find answers. However, we seek to study the aggregate factors affecting a country\u27s propensity to provide humanitarian aid. Using data from 183 countries over a 13-year period between 2001-2013, we estimate a linear regression model in which humanitarian aid is a function of GDP per capita, trade openness, economic freedoms, political freedoms, and civil liberties. The results conclude that a percent increase in GDP per capita will induce a nearly 3% increase in humanitarian aid per capita, while increases in civil liberties will reduce the amount of humanitarian aid per capita donated

    The Autistic Perspective: Interviewing Autistic Adults on Lived Experiences with Behavior Modification and How It Has Shaped Their Communication

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    The use of behavior modification (BM) based treatment, the best-known example being Applied Behavior Analysis (ABA), is established as an evidence-based practice for promoting communication and other outcomes for Autistic individuals. As such, many Speech Language Pathologists (SLPs) use it in their practice to target various forms of communication. Among many autistic advocacy groups, however, ABA and other BM informed therapies are often described as a detriment to mental and emotional health. Organizations such as the Autistic Self Advocacy Network (ASAN) have come out against the practices and recommend finding different approaches to teaching communication skills. Much research is needed to understand this disconnect between the scientific and clinical community’s understanding of BM based therapy as an effective, evidence-based therapy model, and the experience of autistic advocates as traumatic. As a small, early step in the large amount of research needed, this study takes a qualitative, phenomenological based approach, using semi-structured interviews to gain insight into the lived experiences of autistic individuals who were recipients of BM based intervention. The results of this study have the potential to illuminate future research directions, help therapists develop a more comprehensive understanding about the effects of BM on the lives of autistic individuals, and begin the work of building common priorities between the clinical and autistic communities

    The Autistic Perspective: Interviewing Autistic Adults on Lived Experiences with Behavior Modification and How It Has Shaped Their Communication

    Get PDF
    The use of behavior modification (BM) based treatment, the best-known example being Applied Behavior Analysis (ABA), is established as an evidence-based practice for promoting communication and other outcomes for Autistic individuals. As such, many Speech Language Pathologists (SLPs) use it in their practice to target various forms of communication. Among many autistic advocacy groups, however, ABA and other BM informed therapies are often described as a detriment to mental and emotional health. Organizations such as the Autistic Self Advocacy Network (ASAN) have come out against the practices and recommend finding different approaches to teaching communication skills. Much research is needed to understand this disconnect between the scientific and clinical community’s understanding of BM based therapy as an effective, evidence-based therapy model, and the experience of autistic advocates as traumatic. As a small, early step in the large amount of research needed, this study takes a qualitative, phenomenological based approach, using semi-structured interviews to gain insight into the lived experiences of autistic individuals who were recipients of BM based intervention. The results of this study have the potential to illuminate future research directions, help therapists develop a more comprehensive understanding about the effects of BM on the lives of autistic individuals, and begin the work of building common priorities between the clinical and autistic communities

    When The Shadows Make The Twilight Fade Away

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    https://digitalcommons.library.umaine.edu/mmb-vp/4568/thumbnail.jp

    American Geriatrics Society and National Institute on Aging Bench-to-Bedside conference: sensory impairment and cognitive decline in older adults

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    This article summarizes the presentations and recommendations of the tenth annual American Geriatrics Society and National Institute on Aging Bench‐to‐Bedside research conference, “Sensory Impairment and Cognitive Decline,” on October 2–3, 2017, in Bethesda, Maryland. The risk of impairment in hearing, vision, and other senses increases with age, and almost 15% of individuals aged 70 and older have dementia. As the number of older adults increases, sensory and cognitive impairments will affect a growing proportion of the population. To limit its scope, this conference focused on sensory impairments affecting vision and hearing. Comorbid vision, hearing, and cognitive impairments in older adults are more common than would be expected by chance alone, suggesting that some common mechanisms might affect these neurological systems. This workshop explored the mechanisms and consequences of comorbid vision, hearing, and cognitive impairment in older adults; effects of sensory loss on the aging brain; and bench‐to‐bedside innovations and research opportunities. Presenters and participants identified many research gaps and questions; the top priorities fell into 3 themes: mechanisms, measurement, and interventions. The workshop delineated specific research questions that provide opportunities to improve outcomes in this growing population.Funding was provided by National Institutes of Health (NIH) Grant U13 AG054139-01. Dr. Whitson's efforts and contributions were supported by R01AG043438, R24AG045050, UH2AG056925, and 5P30AG028716. Dr. Lin's effort and contributions were also supported by R01AG055426, R01HL096812, and R33DC015062. (U13 AG054139-01 - National Institutes of Health (NIH); R01AG043438; R24AG045050; UH2AG056925; 5P30AG028716; R01AG055426; R01HL096812; R33DC015062)Accepted manuscrip

    Gamifying research : Strategies, opportunities, challenges, ethics

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    From social sciences to biology and physics, gamified systems and games are increasingly being used as contexts and tools for research: as "petri dishes" for observing macro-social and economic dynamics; as sources of "big" and/or ecologically valid user behavior and health data; as crowdsourcing tools for research tasks; or as a means to motivate e.g. survey completion. However, this gamification of research comes with significant ethical ramifications. This workshop therefore explores opportunities, challenges, best practices, and ethical issues arising from different strategies of gamifying research

    Altering the primacy bias – How does a prior task affect mismatch negativity (MMN)?

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    The role in which two tones are first encountered in an unattended oddball sequence affects how deviance detection, reflected by mismatch negativity (MMN), treats them later when the roles reverse: a “primacy bias”. We tested whether this effect is modulated by previous behavioural relevance assigned to the two tones. To this end, sequences in which the roles of the two tones alternated were preceded by a go-nogo task in which tones were presented with equal probability. Half of the participants were asked to respond to the short sounds, the other half to long sounds. Primacy bias was initially abolished but returned dependent upon the gostimulus the participant was assigned. Results demonstrate a long-term impact of prior learning on deviance detection; and that even when prior importance/equivalence is learned, the bias ultimately returns. Results are discussed in terms of persistent go-stimulus-specific changes in responsiveness to sound

    Renal Stone Risk During Space Flight: Assessment and Countermeasure Validation

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    NASA has focused its future on exploration class missions including the goal of returning to the moon and landing on Mars. With these objectives, humans will experience an extended exposure to the harsh environment of microgravity and the associated negative effects on all the physiological systems of the body. Exposure to microgravity affects human physiology and results in changes to the urinary chemical composition during and after space flight. These changes are associated with an increased risk of renal stone formation. The development of a renal stone would have health consequences for the crewmember and negatively impact the success of the mission. As of January 2007, 15 known symptomatic medical events consistent with urinary calculi have been experienced by 13 U.S. astronauts and Russian cosmonauts. Previous results from both MIR and Shuttle missions have demonstrated an increased risk for renal stone formation. These data have shown decreased urine volume, urinary pH and citrate levels and increased urinary calcium. Citrate, an important urinary inhibitor of calcium-containing renal stones binds with calcium in the urine, thereby reducing the amount of calcium available to form calcium oxalate stones. Urinary citrate also prevents calcium oxalate crystals from aggregating into larger crystals and into renal stones. In addition, citrate makes the urine less acidic which inhibits the development of uric acid stones. Potassium citrate supplementation has been successfully used to treat patients who have formed renal stones. The evaluation of potassium citrate as a countermeasure has been performed during the ISS Expeditions 3-6, 8, 11-13 and is currently in progress during the ISS Expedition 14 mission. Together with the assessment of stone risk and the evaluation of a countermeasure, this investigation provides an educational opportunity to all crewmembers. Individual urinary biochemical profiles are generated and the risk of stone formation is estimated. Increasing fluid intake is recommended to all crewmembers. These results can be used to lower the risk for stone formation through lifestyle, diet changes or therapeutic administration to minimize the risk for stone development. With human presence in microgravity a continuing presence and exploration class missions being planned, maintaining the health and welfare of all crewmembers is critical to the exploration of space

    Impact of Alternative Energy Prices, Tenure Arrangements and Irrigation Technologies on a Typical Texas High Plains Farm

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    Irrigation is a major contributing factor in crop production on the Texas High Plains. It is responsible for greatly increasing crop production and farm income for the region. Two factors, a declining groundwater supply and increasing production costs, are of primary concern because they impact on farm operations and producer economic viability. A recursive linear programming model for a typical Texas High Plains irrigated farm was developed to evaluate expected impact of price changes, tenure and new technology. The model includes a Fortran sub-routine that adjusts irrigation factors each year based on the linear programming solution of the previous year. After calculating new pumping energy requirements, well yield, and pumping lift, the Fortran component updates the linear programming model. This procedure continues automatically to the end of a specified planning period or to economic exhaustion of the groundwater, whichever occurs first. Static applications of the model, in a deep water situation, showed that a natural gas price increase from 1.50to1.50 to 2.20 per thousand cubic feet (mcf) would result in reductions in irrigation levels. Irrigation was terminated when the price of natural gas reached about 7.00permcf.Inashallowwatersituation,muchhighernaturalgaspriceswerereached(7.00 per mcf. In a shallow water situation, much higher natural gas prices were reached (3.60 per mcf) before short-run adjustments in farm organization began to occur. Under furrow irrigation, irrigation was terminated when the natural gas price reached 7.00permcf.Increasednaturalgaspricesimpactheavilyonreturnsabovevariablecosts(upto15percentreductions)fora60percentnaturalgaspriceincrease.Theeffectsofrisingnaturalgaspricesoveralongerperiodoftimeweremoresignificant.Annualreturns(abovevariableandfixedcosts)werereducedbyasmuchas30percent,andthepresentvalueofreturnstowaterwasreducedbyasmuchas80percentasthenaturalgaspricewasincreasedannuallyby7.00 per mcf. Increased natural gas prices impact heavily on returns above variable costs (up to 15 percent reductions) for a 60 percent natural gas price increase. The effects of rising natural gas prices over a longer period of time were more significant. Annual returns (above variable and fixed costs) were reduced by as much as 30 percent, and the present value of returns to water was reduced by as much as 80 percent as the natural gas price was increased annually by 0.25 per mcf (from 1.50permcf).Theeconomiclifeofdeepgroundwaterwasshortenedbyasmuchas18years.Renteroperatorsareevenmorevulnerabletorisingnaturalgaspricesthanareowneroperators.Withrisingnaturalgasprices,profitabilityovertimefortherenterislow.Asnaturalgaspricescontinuetoincrease,thegreaterwillbetheincentivesforrenteroperatorstoseekmorefavorablerentaltermssuchasasharingofirrigationcosts.Withtheproblemofadeclininggroundwatersupplyandrisingnaturalgasprices,aneconomicincentiveexistsforproducerstofindnewtechnologiesthatwillenablethemtomakemoreefficientuseofremaininggroundwaterandofnaturalgas.Substantialeconomicgainsappearfeasiblethroughimprovedpumpefficiency.Increasingpumpefficiencyfrom50to75percentwillnotincreasetheeconomiclifeofthewatersupply,butcanimprovefarmprofitsovertime;e.g.,thepresentvalueofgroundwaterwasincreased33percentforatypicalfarmwithanaquifercontaining250feetofsaturatedthicknessand15percentfor75feetofsaturatedthickness.Improvedirrigationdistributionsystemscanhelpconservewaterandreduceirrigationcosts.Resultsindicatethatirrigationcanbeextendedby11ormoreyearswith50percentimproveddistributionefficiency.Inaddition,theincreaseinpresentvalueofgroundwateronthe1.69millionirrigatedacresoftheTexasHighPlainswasestimatedtobe1.50 per mcf). The economic life of deep groundwater was shortened by as much as 18 years. Renter-operators are even more vulnerable to rising natural gas prices than are owner-operators. With rising natural gas prices, profitability over time for the renter is low. As natural gas prices continue to increase, the greater will be the incentives for renter-operators to seek more favorable rental terms such as a sharing of irrigation costs. With the problem of a declining groundwater supply and rising natural gas prices, an economic incentive exists for producers to find new technologies that will enable them to make more efficient use of remaining groundwater and of natural gas. Substantial economic gains appear feasible through improved pump efficiency. Increasing pump efficiency from 50 to 75 percent will not increase the economic life of the water supply, but can improve farm profits over time; e.g., the present value of groundwater was increased 33 percent for a typical farm with an aquifer containing 250 feet of saturated thickness and 15 percent for 75 feet of saturated thickness. Improved irrigation distribution systems can help conserve water and reduce irrigation costs. Results indicate that irrigation can be extended by 11 or more years with 50 percent improved distribution efficiency. In addition, the increase in present value of groundwater on the 1.69 million irrigated acres of the Texas High Plains was estimated to be 995 million with 50 percent improved efficiency. Limitations in borrowing can substantially reduce annual net returns. This analysis suggests that the farmer can economically justify very high costs of borrowing rather than a limitation of funds available for operating expenses
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