825 research outputs found

    Attitudes and Behaviours Regarding Climate Change Activism

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    This item is only available electronically.Past research suggests non-violent activism is an effective strategy for populations to increase pressure on governments and bring about policy change. Yet, little is currently known about the motivators for and barriers to climate change activism in Australia. A quantitative-dominant, concurrent mixed methods design was used to investigate this gap in knowledge. Participants (N = 531) completed an online survey consisting of two climate change scales; an attitude scale and a behaviour scale. Latent class analysis (LCA) was used to determine if underlying classes were present in the behaviour scale, while a multinomial logistic regression (MLR) was conducted to determine predictors of class membership. Finally, a multiple response analysis (MRA) was used to analyse respondents’ reasons for engaging, or not engaging, in the activism behaviours. Results from the LCA suggested the presence of three classes: Least Active (22.9%), Moderately Active (55.3%), and Most Active (21.8%). The Most Active class had the highest probability of engagement in climate change activism behaviours compared to the Least and Moderately Active classes. Results from the MLR suggested age was a significant predictor of class membership. Compared to the Least Active respondents, the Most and Moderately Active respondents were significantly older. Results from the MRA suggest, generally, the Most and Moderately Active classes cited similar motivators, while the Least and Moderately Active classes cited similar barriers. These findings have implications for climate change communicators. Information addressing motivators and barriers of climate change activism could help to increase public engagement with anthropogenic climate change.Thesis (B.PsychSc(Hons)) -- University of Adelaide, School of Psychology, 202

    Conclusion

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    Despite recent responses designed to combat the increased liability exposure of directors and officers, the personal risks for corporate insiders remain significant. With corporations operating in an ever-complex regulatory maze, there has been an increased focus on corporate accountability. The difficulty in resolving director and officer liability issues, however, arises in balancing the need to punish misguided fiduciaries with the need to protect aggressive managers who take good faith risks to produce increased corporate profits. While long-range solutions to this balancing problem are essential, directors and officers should pursue short-term tactics to reduce their risk of personal liability. Because it is relatively easy to allege that an individual has breached a fiduciary duty, a director or officer may become embroiled in a lawsuit without actually doing anything wrong. Consequently, all directors and officers should attempt to reduce their exposure to liability. In particular, corporate insiders should understand that certain decisions are especially susceptible to litigation and, therefore, more likely to result in personal liability. Courts are more inclined to second-guess management decisions that impact on shareholders\u27 ownership rights. For example, if aboard of directors approves a cash out merger plan that undervalues the shareholders\u27 stock, a court may be more inclined to find the directors personally liable. In this instance, management\u27s decision has severed the shareholders from their investment and caused them to suffer a loss in their role as owners of stock.\u27 In contrast, a decision by the board of directors to enter a new product market that eventually turns sour is unlikely to result in liability. Although shareholders may suffer a loss on their investment because of the board\u27s decision, the loss is incurred in the share-holders\u27 capacity as investors. Consequently, management should exercise greater caution on decisions that directly affect the shareholders\u27 ownership interests-decisions concerning, for example,stock issuance, redemption, cash out, or merger

    The Vegetation of the Paleozoic Plateau, Northeastern Iowa

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    The present vegetation of the Paleozoic Plateau region of Iowa is a fragmented representation of the original complex of oak-hickory forest mixed with more mesophytic forest, open oak savanna and hill prairie. Because of the topographic variation and the relatively cool, moist environment of the region, the forests are the best developed of those in Iowa, and show the greatest variation, including two types of alluvial forests (Salix thickets and alluvial hardwood forest), and several kinds of upland forests (Tilia, Acer, Quercus borealis, Q, alba and Pinus forests). These types represent points along a more-or-less continuous topographic gradient. Many of the native oak savannas have been eliminated, but oak-juniper glades may be found on cliff faces and steep ridges. The remaining hill prairies are rich in species characteristic of the dry prairies farther to the west. Cold, north-facing slopes ( algific slopes ) are the setting for a unique community containing a large number of rare and disjunct species. Outcrops of sandstones and limestone have characteristic microcommunities, often distinguished by their bryophyte or pteridophyte flora. There is a dearth of quantitative vegetation data from the region, and there are numerous research questions about the communities and their plant species that need answers. Preservation and conservation of plant communities and plant species are extremely important and should be addressed by a landscape approach to inventory and management

    Renal-Stone Risk Assessment During Space Shuttle Flights

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    The metabolic and environmental factors influencing renal stone formation before, during, and after Space Shuttle flights were assessed. We established the contributing roles of dietary factors in relationship to the urinary risk factors associated with renal stone formation. 24-hr urine samples were collected prior to, during space flight, and following landing. Urinary factors associated with renal stone formation were analyzed and the relative urinary supersaturation ratios of calcium oxalate, calcium phosphate (brushite), sodium urate, struvite and uric acid were calculated. Food and fluid consumption was recorded for a 48-hr period ending with the urine collection. Urinary composition changed during flight to favor the crystallization of stone-forming salts. Factors that contributed to increased potential for stone formation during space flight were significant reductions in urinary pH and increases in urinary calcium. Urinary output and citrate, a potent inhibitor of calcium-containing stones, were slightly reduced during space flight. Dietary intakes were significantly reduced for a number of variables, including fluid, energy, protein, potassium, phosphorus and magnesium. This is the first in-flight characterization of the renal stone forming potential in astronauts. With the examination of urinary components and nutritional factors, it was possible to determine the factors that contributed to increased risk or protected from risk. In spite of the protective components, the negative contributions to renal stone risk predominated and resulted in a urinary environment that favored the supersaturation of stone-forming salts. The importance of the hypercalciuria was noted since renal excretion was high relative to the intake

    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

    Specialist community teams for adults with learning disabilities: referrals to a countywide service in England

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    Purpose – While “generic” community teams for adults with learning disabilities (CTs) are well-established in the UK, very little recent evidence is available about any aspect of their work. As part of a larger project about the role, structure and functioning of CTs, the purpose of this paper is to provide data about referrals. Design/methodology/approach – Over threemonths, the authors obtained data about 270 consecutive new referrals to five CTs in a countywide integrated health (NHS) and care management (local authority) service. Findings – The 270 referrals related to 255 individuals, mainly already service users, with almost a third (30 per cent, n=204) described as people with severe or profound disabilities. Consistent with the reported living arrangements (residential accommodation or with one or more family members (87 per cent, n=270)), referrals were most often made by social care staff, General Practitioners or carers. The referrals related to a wide range of issues including mental health and/or behavioural needs, physical health and skills, and independence. The major group, however, were requests about a person’s entitlement to specialist learning disability services and/or reviews of an existing social care package. Research limitations/implications – The focus on new referrals and the exclusion of intra-team referrals mean that the data are not representative of a CT’s caseload and cannot be used as a basis for resourcing. Nevertheless, the findings emphasise the heterogeneity of the population, and the long-term and varied nature of their needs, meaning that CTs require access to a range of expertise and, often, an inter-agency approach. The implications for service design are considered. Originality/value – This is the first empirical study of referrals to specialist integrated (health and care management) community learning disabilities teams in England

    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

    Engineering Virtuous health habits using Emotion and Neurocognition: Flexibility for Lifestyle Optimization and Weight management (EVEN FLOW)

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    Interventions to preserve functional independence in older adults are critically needed to optimize ‘successful aging’ among the large and increasing population of older adults in the United States. For most aging adults, the management of chronic diseases is the most common and impactful risk factor for loss of functional independence. Chronic disease management inherently involves the learning and adaptation of new behaviors, such as adopting or modifying physical activity habits and managing weight. Despite the importance of chronic disease management in older adults, vanishingly few individuals optimally manage their health behavior in the service of chronic disease stabilization to preserve functional independence. Contemporary conceptual models of chronic disease management and health habit theory suggest that this lack of optimal management may result from an underappreciated distinction within the health behavior literature: the behavioral domains critical for initiation of new behaviors (Initiation Phase) are largely distinct from those that facilitate their maintenance (Maintenance Phase). Psychological factors, particularly experiential acceptance and trait levels of openness are critical to engagement with new health behaviors, willingness to make difficult lifestyle changes, and the ability to tolerate aversive affective responses in the process. Cognitive factors, particularly executive function, are critical to learning new skills, using them effectively across different areas of life and contextual demands, and updating of skills to facilitate behavioral maintenance. Emerging data therefore suggests that individuals with greater executive function are better able to sustain behavior changes, which in turn protects against cognitive decline. In addition, social and structural supports of behavior change serve a critical buffering role across phases of behavior change. The present review attempts to address these gaps by proposing a novel biobehavioral intervention framework that incorporates both individual-level and social support system-level variables for the purpose of treatment tailoring. Our intervention framework triangulates on the central importance of self-regulatory functioning, proposing that both cognitive and psychological mechanisms ultimately influence an individuals’ ability to engage in different aspects of self-management (individual level) in the service of maintaining independence. Importantly, the proposed linkages of cognitive and affective functioning align with emerging individual difference frameworks, suggesting that lower levels of cognitive and/or psychological flexibility represent an intermediate phenotype of risk. Individuals exhibiting self-regulatory lapses either due to the inability to regulate their emotional responses or due to the presence of executive functioning impairments are therefore the most likely to require assistance to preserve functional independence. In addition, these vulnerabilities will be more easily observable for individuals requiring greater complexity of self-management behavioral demands (e.g. complexity of medication regimen) and/or with lesser social support. Our proposed framework also intuits several distinct intervention pathways based on the profile of self-regulatory behaviors: we propose that individuals with intact affect regulation and impaired executive function will preferentially respond to ‘top-down’ training approaches (e.g., strategy and process work). Individuals with intact executive function and impaired affect regulation will respond to ‘bottom-up’ approaches (e.g., graded exposure). And individuals with impairments in both may require treatments targeting caregiving or structural supports, particularly in the context of elevated behavioral demands

    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.Renter−operatorsareevenmorevulnerabletorisingnaturalgaspricesthanareowner−operators.Withrisingnaturalgasprices,profitabilityovertimefortherenterislow.Asnaturalgaspricescontinuetoincrease,thegreaterwillbetheincentivesforrenter−operatorstoseekmorefavorablerentaltermssuchasasharingofirrigationcosts.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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